TY  - JOUR
A1  - Mansurov, Z. A.
A1  - Jandosov, J. M.
A1  - Kerimkulova, A. R.
A1  - Azat, S.
A1  - Zhubanova, A. A.
A1  - Digel, Ilya
A1  - Savistkaya, I. S.
A1  - Akimbekov, N. S.
A1  - Kistaubaeva, A. S.
T1  - Nanostructured carbon materials for biomedical use
JF  - Eurasian chemico-technological journal : quarterly journal of the International Higher Education Academy of Sciences
N2  - One of the priority trends of carbon nanotechnology is creation of nanocomposite systems. Such carbon nanostructured composites were produced using - raw materials based on the products of agricultural waste, such as grape stones, apricot stones, rice husk. These products have a - wide spectrum of application and can be obtained in large quantities. The Institute of Combustion Problems has carried out the work on synthesis of the nanostructured carbon sorbents for multiple applications including the field of biomedicine. The article presents the data on the synthesis and physico-chemical properties of carbonaceous sorbents using physicochemical methods of investigation: separation and purification of biomolecules; isolation of phytohormone - fusicoccin; adsorbent INGO-1 in the form of an adsorption column for blood detoxification, oral (entero) sorbent - INGO-2; the study of efferent and probiotic properties and sorption activity in regard to the lipopolysaccharide (LPS), new biocomposites - based on carbonized rice husk (CRH) and cellular microorganisms; the use of CRH in wound treatment. A new material for blood detoxication (INGO-1) has been obtained. Adsorption of p-cresyl sulfate and indoxyl sulfate has shown that active carbon adsorbent can remove clinically significant level of p-cresyl sulfate and indoxyl sulfate from human plasma. Enterosorbent INGO-2 possesses high adsorption activity in relation to Gram-negative bacteria and their endotoxins. INGO-2 slows down the growth of conditionally pathogenic microorganisms, without having a negative effect on bifido and lactobacteria. The use of enterosorbent INGO-2 for sorption therapy may provide a solution to a complex problem - detoxication of the digestive tract and normalization of the intestinal micro ecology. The immobilized probiotic called "Riso-lact" was registered at the Ministry of Health of the Republic of Kazakhstan as a biologically active food additive. The developed technology is patented and provides production of the medicine in the form of freeze-dried biomass immobilized in vials.
Y1  - 2014
U6  - http://dx.doi.org/10.18321/ectj224
SN  - 1562-3920
VL  - 15 (2013)
IS  - 3
SP  - 209
EP  - 217
PB  - Institute of Combustion Problems
CY  - Almaty
ER  - 
TY  - JOUR
A1  - Turaliyeva, M.
A1  - Yeshibaev, A.
A1  - Digel, Ilya
A1  - Elibayeva, G.
A1  - Sydykova, A.
A1  - Uspabayeva, A.
A1  - Dosybayeva, G.
A1  - Zhylysbayeva, A.
A1  - Lakhanova, K.
T1  - Molecular-genetic identification of emerged novel invasive pathogens of Asiatic Elm Ulmus pumila L
JF  - Life science journal
N2  - The dwarf elm Ulmus pumila L. (Ulmaceae) is one of indigenous species of flora in Kazakhstan and forms a basis of dendroflora in virtually all settlements of the region. In the past decade, multiple outbreaks of previously unknown diseases of the small-leaved elm have been registered. In our study, by the molecular-genetic analysis it was found that the pathogens responsible for the outbreaks are microfungi belonging to the genus Fusarium – F. solani and F. oxysporum. The nucleotide sequences (ITS regions) isolated from the diseased trees showed very high similarity with the GenBank control numbers EU625403.1 and FJ478128.1 (100.0 and 99.0 % respectively). Oncoming research will focus on the search of natural microbial antagonists of the discovered phytopathogens.
Y1  - 2014
U6  - http://dx.doi.org/10.7537/marslsj1105s14.33
SN  - 1097-8135
VL  - 11
IS  - Spec. iss. 5s
SP  - 171
EP  - 175
PB  - Marsland Press
CY  - New York
ER  - 
TY  - JOUR
A1  - Savitskaya, I.S.
A1  - Kistaubayeva, A.S.
A1  - Ignatova, L.V.
A1  - Digel, Ilya
T1  - Antimicrobial and wound healing properties of a bacterial cellulose based material containing B. subtilis cells
JF  - Heliyon
Y1  - 2019
U6  - http://dx.doi.org/10.1016/j.heliyon.2019.e02592
SN  - 2405-8440
VL  - 5
IS  - 10
SP  - Artikelnummer e02592
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Akimbekov, N. S.
A1  - Digel, Ilya
A1  - Tastambek, K. T.
A1  - Zhubanova, A. A.
T1  - Biocompatibility of carbonized rice husk with a rat heart cells line H9c2
JF  - Experimental Biology
Y1  - 2013
SN  - 1563-0218
N1  - Original in russischer Sprache
VL  - 59
IS  - 3/1
SP  - 23
EP  - 25
ER  - 
TY  - JOUR
A1  - Akimbekov, N.Sh.
A1  - Digel, Ilya
A1  - Savitkaya, I.S.
A1  - Zhubanova, A.A.
A1  - Tastambek, K.T.
T1  - Investigations of LPS endotoxin elimination in the flowing column conditions with the sorbent on the basis of carbonized rice husk
JF  - KazNU Bulletin. Biology series
Y1  - 2013
SN  - 1563-0218
N1  - Original in russischer Sprache
VL  - 57
IS  - 1
SP  - 124
EP  - 127
ER  - 
TY  - JOUR
A1  - Aimenova, Zh. E.
A1  - Digel, Ilya
A1  - Eshibaev, А. А.
T1  - Dynamics of accumulation of lagochirzin in Lagochilus setulosus phytomass during the growing season and also features of its cultivation in the conditions of a typical sierozem
JF  - KazNU Bulletin. Biology series
N2  - L.setulosus is offered for creation of biopreparation «Setulin», possesing he- mostatic action, the basic reactant of biopreparation is diterpen – lagochirzin. Results under the maintenance and dynamics of diterpen lagochirzin accumula- tion in various parts of L.setulosus are presented: in roots, stalks, leaves, flowers and calyx lobes during the growing season, and also results on conditions of cultivation L.setulosus in the conditions of a typical sierozem are resulted. From the obtained data is visible, that the given species of a plant is endemic. It is established, that dynamics of accumulation of lagochirzin in phytomass accrues from the beginning to the middle of the growing season. The chemical analysis of L.setulosus on a localization of lagochirzin in various organs of a plant, has shown, that the greatest quantity of lagochirzin collects in calyx lobes of the  plants. Also it is established, that L.setulosus can be cultivated in the conditions of the typical sierozem, a mineral food is necessary for the given species of plants of Lagochilus genus, except nitric fertilizers. Comparative studying of wild-growing and cultural forms of L.setulosus has shown, that in the cultivated phytomass of plants the maintenance of lagochirzin on 17-20 % higher than in the wild-growing species.
Y1  - 2016
SN  - 1563-0218
N1  - Original in russischer Sprache
VL  - 69
IS  - 4
SP  - 4
EP  - 11
PB  - Al-Farabi Kazakh National University
CY  - Almaty
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Wehlitz, V.
A1  - Kayser, Peter
A1  - Figiel-Lange, A.
A1  - Bassam, R.
A1  - Rundstedt, F. von
T1  - Suspension depletion approach for exemption of infected Solanum jasminoides cells from pospiviroids
JF  - Plant Pathology
N2  - Despite numerous studies, viroid elimination from infected plants remains a very challenging task. This study introduces for the first time a novel ‘suspension depletion’ approach for exemption of Solanum jasminoides plants from viroids. The proposed method implies initial establishment of suspension cultures of the infected plant cells. The suspended cells were then physically treated (mild thermotherapy, 33 °C), which presumably delayed the replication of the viroid. The viroid concentration in the treated biomass was monitored weekly using pospiviroid-specific PCR. After 10–12 weeks of continuous treatment, a sufficient decrease in viroid concentration was observed such that the infection became undetectable by PCR. The treated single cells then gave rise to microcolonies on a solid culture medium and the obtained viroid-negative clones were further promoted to regenerate into viroid-free plants. Three years of accumulated experimental data suggests feasibility, broad applicability, and good efficacy of the proposed approach.
Y1  - 2018
U6  - http://dx.doi.org/10.1111/ppa.12750
SN  - 1365-3059
VL  - 67
IS  - 2
SP  - 358
EP  - 365
PB  - Wiley
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Mansurov, Z.
A1  - Digel, Ilya
A1  - Biisenbaev, M.
A1  - Savistkaya, I.
A1  - Kistaubaeva, A.
A1  - Akimbekov, N.
A1  - Zhubanova, A.
T1  - Bio-composite material on the basis of carbonized rice husk in biomedicine and environmental applications
JF  - Eurasian Chemico-Technological Journal
Y1  - 2012
U6  - http://dx.doi.org/10.18321/ectj105
SN  - 2522-4867
VL  - 14
IS  - 2
SP  - 115
EP  - 131
PB  - Institute of Combustion Problems
CY  - Almaty
ER  - 
TY  - JOUR
A1  - Savitskaya, I. S.
A1  - Kistaubayeva, A. S.
A1  - Digel, Ilya
A1  - Shokatayeva, D. H.
T1  - Physicochemical and Antibacterial Properties of Composite Films Based on Bacterial Cellulose and Chitosan for Wound Dressing Materials
JF  - Eurasian Chemico-Technological Journal
Y1  - 2017
U6  - http://dx.doi.org/10.18321/ectj670
SN  - 2522-4867
VL  - 19
IS  - 3
SP  - 255
EP  - 264
ER  - 
TY  - JOUR
A1  - Akimbekov, N. Sh.
A1  - Digel, Ilya
A1  - Zhubanova, A. A.
T1  - Advantages of creation of e-books in training of specialists biologists and biotechnologists
JF  - KazNU Bulletin. Biology series.
N2  - The necessity of e-books as a primary of learning, its opportunities for realization of competence during training biologist and biotechnologist specialists are determined. Definitions and requirements to the e-books, its advantages in comparison with traditional textbooks, and the ways of creation of e-books in the SunRav BookEditor program are considered.
KW  - SunRav BookEditor
KW  - softs
KW  - distance learning
KW  - e-issues
KW  - e-books
Y1  - 2014
SN  - 1563-0218
VL  - 60
IS  - 1
SP  - 249
EP  - 252
PB  - Al-Farabi Kazakh National University
CY  - Almaty
ER  - 
TY  - JOUR
A1  - Sagymbay, Altynay
A1  - G.E., Nusupbaeva
A1  - N.Zh, Tleumbetova
A1  - A.S., Mutalieva
A1  - Nurpeisova, Ainur
A1  - D.B., Jussupova
A1  - Digel, Ilya
T1  - Molecular genetics features of the epidemic season 2017-2018 on the influenza in Kazakhstan
JF  - Eurasian Journal of  Ecology
Y1  - 2019
SN  - 2617-7358
VL  - 58
IS  - 1
SP  - 50
EP  - 60
ER  - 
TY  - JOUR
A1  - Zhubanova, А.
A1  - Mansurov, Z.A.
A1  - Digel, Ilya
A1  - Saviskaya, I.S.
A1  - Akimbekov, N.Sh.
T1  - Designing of Heterogeneous Nanobiocomposites for Biotechnology
JF  - KazNU Bulletin. Biology series
Y1  - 2013
SN  - 1563-0218
VL  - 59
IS  - No 3/1
SP  - 89
EP  - 93
ER  - 
TY  - JOUR
A1  - Akimbekov, N.Sh.
A1  - Digel, Ilya
A1  - O’Heras, C.
A1  - Tastambek, K.T.
A1  - Savitskaya, I.S.
A1  - Ualyeva, P.S.
A1  - Mansurov, Z.A.
A1  - Zhubanova, A.A.
T1  - Adsorption of bacterial lipopol ysaccharides on carbonized ri ce husks obtained in the batch  experiments
JF  - KazNU Bulletin. Biology series
Y1  - 2015
SN  - 1563-0218
VL  - 60
IS  - No 1/2
SP  - 144
EP  - 148
ER  - 
TY  - JOUR
A1  - Akimbekov, N.Sh.
A1  - Digel, Ilya
A1  - O´Heras, C.
A1  - Tastambek, K.T.
A1  - Savitskaya, I.S.
A1  - Ualyeva, P.S.
A1  - Mansurov, Z.A.
A1  - Zhubanova, A.A.
T1  - Adsorption of bacterial lipopolysaccharides on carbonized rice husks obtained in the batch experiments
JF  - Experimental Biology
N2  - The  scope  of  this  study  is  the  measurement  of  endotoxin  adsorption  rate  for  carbonized  rice  husk.  It  showed  good  adsorption properties for LPS. During the batch experiments, several techniques were used and optimized for improving the  material’s  adsorption  behavior.  Also,  with  the  results  obtained  it  was  possible  to  differentiate  the  materials  according to their adsorption capacity and kinetic characteristics.
KW  - surface modification
KW  - adsorption
KW  - carbonized rice husk
KW  - lipopolysaccharide
Y1  - 2014
SN  - 1563-0218
N1  - Original in russischer Sprache
VL  - 60
IS  - 1/2
SP  - 144
EP  - 148
PB  - Al-Farabi Kazakh National University
CY  - Almaty
ER  - 
TY  - JOUR
A1  - Akimbekov, N. Sh.
A1  - Digel, Ilya
A1  - Zhubanova, A. A.
T1  - Investigation the Influence of Carbonized Material Based On Rice Husk on Viability and Migration of Fibroblasts in T3B3 Cell Culture
JF  - KazNU Bulletin. Biology series
Y1  - 2013
SN  - 1563-0218
N1  - Original in russischer Sprache
VL  - 59
IS  - 3/1
SP  - 20
EP  - 23
ER  - 
TY  - JOUR
A1  - Turlybekuly, Amanzhol
A1  - Pogrebnjak, Alexander
A1  - Sukhodub, L. F.
A1  - Sukhodub, Liudmyla B.
A1  - Kistaubayeva, A. S.
A1  - Savitskaya, Irina
A1  - Shokatayeva, D. H.
A1  - Bondar, Oleksandr V.
A1  - Shaimardanov, Z. K.
A1  - Plotnikov, Sergey V.
A1  - Shaimardanova, B. H.
A1  - Digel, Ilya
T1  - Synthesis, characterization, in vitro biocompatibility and antibacterial properties study of nanocomposite materials based on hydroxyapatite-biphasic ZnO micro- and nanoparticles embedded in Alginate matrix
JF  - Materials Science and Engineering C
Y1  - 2019
U6  - http://dx.doi.org/10.1016/j.msec.2019.109965
VL  - 104
IS  - Article number 109965
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Akimbekov, Nuraly S.
A1  - Digel, Ilya
A1  - Sherelkhan, Dinara K.
A1  - Lutfor, Afzalunnessa B.
A1  - Razzaque, Mohammed S.
T1  - Vitamin D and the Host-Gut Microbiome: A Brief Overview
JF  - Acta Histochemica et Cytochemica
N2  - There is a growing body of evidence for the effects of vitamin D on intestinal host-microbiome interactions related to gut dysbiosis and bowel inflammation. This brief review highlights the potential links between vitamin D and gut health, emphasizing the role of vitamin D in microbiological and immunological mechanisms of inflammatory bowel diseases. A comprehensive literature search was carried out in PubMed and Google Scholar using combinations of keywords “vitamin D,” “intestines,” “gut microflora,” “bowel inflammation”. Only articles published in English and related to the study topic are included in the review. We discuss how vitamin D (a) modulates intestinal microbiome function, (b) controls antimicrobial peptide expression, and (c) has a protective effect on epithelial barriers in the gut mucosa. Vitamin D and its nuclear receptor (VDR) regulate intestinal barrier integrity, and control innate and adaptive immunity in the gut. Metabolites from the gut microbiota may also regulate expression of VDR, while vitamin D may influence the gut microbiota and exert anti-inflammatory and immune-modulating effects. The underlying mechanism of vitamin D in the pathogenesis of bowel diseases is not fully understood, but maintaining an optimal vitamin D status appears to be beneficial for gut health. Future studies will shed light on the molecular mechanisms through which vitamin D and VDR interactions affect intestinal mucosal immunity, pathogen invasion, symbiont colonization, and antimicrobial peptide expression.
Y1  - 2020
U6  - http://dx.doi.org/10.1267/ahc.20011
SN  - 1347-5800
VL  - 53
IS  - 3
SP  - 33
EP  - 42
PB  - Japan Society of Histochemistry and Cytochemistry
CY  - Osaka
ER  - 
TY  - JOUR
A1  - Akimbekov, Nuraly
A1  - Qiao, Xiaohui
A1  - Digel, Ilya
A1  - Abdieva, Gulzhamal
A1  - Ualieva, Perizat
A1  - Zhubanova, Azhar
T1  - The effect of leonardite-derived amendments on soil microbiome structure and potato yield
JF  - Agriculture
N2  - Humic substances originating from various organic matters can ameliorate soil properties, stimulate plant growth, and improve nutrient uptake. Due to the low calorific heating value, leonardite is rather unsuitable as fuel. However, it may serve as a potential source of humic substances. This study was aimed at characterizing the leonardite-based soil amendments and examining the effect of their application on the soil microbial community, as well as on potato growth and tuber yield. A high yield (71.1%) of humic acid (LHA) from leonardite has been demonstrated. Parental leonardite (PL) and LHA were applied to soil prior to potato cultivation. The 16S rRNA sequencing of soil samples revealed distinct relationships between microbial community composition and the application of leonardite-based soil amendments. Potato tubers were planted in pots in greenhouse conditions. The tubers were harvested at the mature stage for the determination of growth and yield parameters. The results demonstrated that the LHA treatments had a significant effect on increasing potato growth (54.9%) and tuber yield (66.4%) when compared to the control. The findings highlight the importance of amending leonardite-based humic products for maintaining the biogeochemical stability of soils, for keeping their healthy microbial community structure, and for increasing the agronomic productivity of potato plants.
Y1  - 2020
U6  - http://dx.doi.org/10.3390/agriculture10050147
VL  - 10
IS  - Art. 147
SP  - 1
EP  - 17
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Alexyuk, Madina
A1  - Bogoyavlenskiy, Andrey
A1  - Alexyuk, Pavel
A1  - Moldakhanov, Yergali
A1  - Berezin, Vladimir
A1  - Digel, Ilya
T1  - Epipelagic microbiome of the Small Aral Sea: Metagenomic structure and ecological diversity
JF  - MicrobiologyOpen
N2  - Microbial diversity studies regarding the aquatic communities that experienced or are experiencing environmental problems are essential for the comprehension of the remediation dynamics. In this pilot study, we present data on the phylogenetic and ecological structure of microorganisms from epipelagic water samples collected in the Small Aral Sea (SAS). The raw data were generated by massive parallel sequencing using the shotgun approach. As expected, most of the identified DNA sequences belonged to Terrabacteria and Actinobacteria (40% and 37% of the total reads, respectively). The occurrence of Deinococcus-Thermus, Armatimonadetes, Chloroflexi in the epipelagic SAS waters was less anticipated. Surprising was also the detection of sequences, which are characteristic for strict anaerobes—Ignavibacteria, hydrogen-oxidizing bacteria, and archaeal methanogenic species. We suppose that the observed very broad range of phylogenetic and ecological features displayed by the SAS reads demonstrates a more intensive mixing of water masses originating from diverse ecological niches of the Aral-Syr Darya River basin than presumed before.
KW  - ecological structure
KW  - metagenomics
KW  - microbial diversity
KW  - shotgun sequencing
KW  - Small Aral Sea
Y1  - 2021
U6  - http://dx.doi.org/10.1002/mbo3.1142
SN  - 2045-8827
VL  - 10
IS  - 1
SP  - 1
EP  - 10
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Zhantlessova, Sirina
A1  - Savitskaya, Irina
A1  - Kistaubayeva, Aida
A1  - Ignatova, Ludmila
A1  - Talipova, Aizhan
A1  - Pogrebnjak, Alexander
A1  - Digel, Ilya
T1  - Advanced “Green” prebiotic composite of bacterial cellulose/pullulan based on synthetic biology-powered microbial coculture strategy
JF  - Polymers
N2  - Bacterial cellulose (BC) is a biopolymer produced by different microorganisms, but in biotechnological practice, Komagataeibacter xylinus is used. The micro- and nanofibrillar structure of BC, which forms many different-sized pores, creates prerequisites for the introduction of other polymers into it, including those synthesized by other microorganisms. The study aims to develop a cocultivation system of BC and prebiotic producers to obtain BC-based composite material with prebiotic activity. In this study, pullulan (PUL) was found to stimulate the growth of the probiotic strain Lactobacillus rhamnosus GG better than the other microbial polysaccharides gellan and xanthan. BC/PUL biocomposite with prebiotic properties was obtained by cocultivation of Komagataeibacter xylinus and Aureobasidium pullulans, BC and PUL producers respectively, on molasses medium. The inclusion of PUL in BC is proved gravimetrically by scanning electron microscopy and by Fourier transformed infrared spectroscopy. Cocultivation demonstrated a composite effect on the aggregation and binding of BC fibers, which led to a significant improvement in mechanical properties. The developed approach for “grafting” of prebiotic activity on BC allows preparation of environmentally friendly composites of better quality.
KW  - coculture
KW  - pullulan
KW  - exopolysaccharides
KW  - prebiotic
KW  - bacterial cellulose
Y1  - 2022
U6  - http://dx.doi.org/10.3390/polym14153224
SN  - 2073-4360
N1  - This article belongs to the Special Issue "Cellulose Based Composites"
VL  - 14
IS  - 15
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Pogorelova, Natalia
A1  - Rogachev, Evgeniy
A1  - Akimbekov, Nuraly
A1  - Digel, Ilya
T1  - Effect of dehydration method on the micro- and nanomorphological properties of bacterial cellulose produced by Medusomyces gisevii on different substrates
JF  - Journal of materials science
N2  - Many important properties of bacterial cellulose (BC), such as moisture absorption capacity, elasticity and tensile strength, largely depend on its structure. This paper presents a study on the effect of the drying method on BC films produced by Medusomyces gisevii using two different procedures: room temperature drying (RT, (24 ± 2 °C, humidity 65 ± 1%, dried until a constant weight was reached) and freeze-drying (FD, treated at − 75 °C for 48 h). BC was synthesized using one of two different carbon sources—either glucose or sucrose. Structural differences in the obtained BC films were evaluated using atomic force microscopy (AFM), scanning electron microscopy (SEM), and X-ray diffraction. Macroscopically, the RT samples appeared semi-transparent and smooth, whereas the FD group exhibited an opaque white color and sponge-like structure. SEM examination showed denser packing of fibrils in FD samples while RT-samples displayed smaller average fiber diameter, lower surface roughness and less porosity. AFM confirmed the SEM observations and showed that the FD material exhibited a more branched structure and a higher surface roughness. The samples cultivated in a glucose-containing nutrient medium, generally displayed a straight and ordered shape of fibrils compared to the sucrose-derived BC, characterized by a rougher and wavier structure. The BC films dried under different conditions showed distinctly different crystallinity degrees, whereas the carbon source in the culture medium was found to have a relatively small effect on the BC crystallinity.
Y1  - 2024
U6  - http://dx.doi.org/10.1007/s10853-024-09596-3
SN  - 1573-4803 (Online)
SN  - 0022-2461 (Print)
N1  - Corresponding author: Ilya Digel
VL  - 2024
PB  - Springer Science + Business Media
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Akimbekov, Nuraly
A1  - Digel, Ilya
A1  - Abdieva, Gulzhamal
A1  - Ualieva, Perizat
A1  - Tastambek, Kuanysh
T1  - Lignite biosolubilization and bioconversion by Bacillus sp.: the collation of analytical data
JF  - Biofuels
N2  - The vast metabolic potential of microbes in brown coal (lignite) processing and utilization can greatly contribute to innovative approaches to sustainable production of high-value products from coal. In this study, the multi-faceted and complex coal biosolubilization process by Bacillus sp. RKB 7 isolate from the Kazakhstan coal-mining soil is reported, and the derived products are characterized. Lignite solubilization tests performed for surface and suspension cultures testify to the formation of numerous soluble lignite-derived substances. Almost 24% of crude lignite (5% w/v) was solubilized within 14 days under slightly alkaline conditions (pH 8.2). FTIR analysis revealed various functional groups in the obtained biosolubilization products. Analyses of the lignite-derived humic products by UV-Vis and fluorescence spectrometry as well as elemental analysis yielded compatible results indicating the emerging products had a lower molecular weight and degree of aromaticity. Furthermore, XRD and SEM analyses were used to evaluate the biosolubilization processes from mineralogical and microscopic points of view. The findings not only contribute to a deeper understanding of microbe–mineral interactions in coal environments, but also contribute to knowledge of coal biosolubilization and bioconversion with regard to sustainable production of humic substances. The detailed and comprehensive analyses demonstrate the huge biotechnological potential of Bacillus sp. for agricultural productivity and environmental health.
KW  - humic acid
KW  - Bacillus sp
KW  - lignite
KW  - Biosolubilization
Y1  - 2021
SN  - 1759-7277
VL  - 12
IS  - 3
SP  - 247
EP  - 258
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Kern, Inna
A1  - Geenen, Eva-Maria
A1  - Akimbekov, Nuraly
T1  - Dental plaque removal by ultrasonic toothbrushes
JF  - dentistry journal
N2  - With the variety of toothbrushes on the market, the question arises, which toothbrush is best suited to maintain oral health? This thematic review focuses first on plaque formation mechanisms and then on the plaque removal effectiveness of ultrasonic toothbrushes and their potential in preventing oral diseases like periodontitis, gingivitis, and caries. We overviewed the physical effects that occurred during brushing and tried to address the question of whether ultrasonic toothbrushes effectively reduced the microbial burden by increasing the hydrodynamic forces. The results of published studies show that electric toothbrushes, which combine ultrasonic and sonic (or acoustic and mechanic) actions, may have the most promising effect on good oral health. Existing ultrasonic/sonic toothbrush models do not significantly differ regarding the removal of dental biofilm and the reduction of gingival inflammation compared with other electrically powered toothbrushes, whereas the manual toothbrushes show a lower effectiveness.
Y1  - 2020
U6  - http://dx.doi.org/10.3390/dj8010028
SN  - 2304-6767
VL  - 8
IS  - 28
SP  - 1
EP  - 13
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Pogorelova, Natalia
A1  - Rogachev, Evgeniy
A1  - Digel, Ilya
A1  - Chernigova, Svetlana
A1  - Nardin, Dmitry
T1  - Bacterial Cellulose Nanocomposites: Morphology and Mechanical Properties
JF  - Materials
N2  - Bacterial cellulose (BC) is a promising material for biomedical applications due to its unique properties such as high mechanical strength and biocompatibility. This article describes the microbiological synthesis, modification, and characterization of the obtained BC-nanocomposites originating from symbiotic consortium Medusomyces gisevii. Two BC-modifications have been obtained: BC-Ag and BC-calcium phosphate (BC-Ca3(PO4)2). Structure and physicochemical properties of the BC and its modifications were investigated by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), and infrared Fourier spectroscopy as well as by measurements of mechanical and water holding/absorbing capacities. Topographic analysis of the surface revealed multicomponent thick fibrils (150–160 nm in diameter and about 15 µm in length) constituted by 50–60 nm nanofibrils weaved into a left-hand helix. Distinctive features of Ca-phosphate-modified BC samples were (a) the presence of 500–700 nm entanglements and (b) inclusions of Ca3(PO4)2 crystals. The samples impregnated with Ag nanoparticles exhibited numerous roundish inclusions, about 110 nm in diameter. The boundaries between the organic and inorganic phases were very distinct in both cases. The Ag-modified samples also showed a prominent waving pattern in the packing of nanofibrils. The obtained BC gel films possessed water-holding capacity of about 62.35 g/g. However, the dried (to a constant mass) BC-films later exhibited a low water absorption capacity (3.82 g/g). It was found that decellularized BC samples had 2.4 times larger Young’s modulus and 2.2 times greater tensile strength as compared to dehydrated native BC films. We presume that this was caused by molecular compaction of the BC structure.
Y1  - 2020
SN  - 1996-1944
U6  - http://dx.doi.org/10.3390/ma13122849
VL  - 13
IS  - 12
SP  - 1
EP  - 16
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Akimbekov, Nuraly S.
A1  - Digel, Ilya
A1  - Tastambek, Kuanysh T.
A1  - Sherelkhan, Dinara K.
A1  - Jussupova, Dariya B.
A1  - Altynbay, Nazym P.
T1  - Low-rank coal as a source of humic substances for soil amendment and fertility management
JF  - Agriculture
N2  - Humic substances (HS), as important environmental components, are essential to soil health and agricultural sustainability. The usage of low-rank coal (LRC) for energy generation has declined considerably due to the growing popularity of renewable energy sources and gas. However, their potential as soil amendment aimed to maintain soil quality and productivity deserves more recognition. LRC, a highly heterogeneous material in nature, contains large quantities of HS and may effectively help to restore the physicochemical, biological, and ecological functionality of soil. Multiple emerging studies support the view that LRC and its derivatives can positively impact the soil microclimate, nutrient status, and organic matter turnover. Moreover, the phytotoxic effects of some pollutants can be reduced by subsequent LRC application. Broad geographical availability, relatively low cost, and good technical applicability of LRC offer the advantage of easy fulfilling soil amendment and conditioner requirements worldwide. This review analyzes and emphasizes the potential of LRC and its numerous forms/combinations for soil amelioration and crop production. A great benefit would be a systematic investment strategy implicating safe utilization and long-term application of LRC for sustainable agricultural production.
KW  - soil remediation
KW  - crop yield
KW  - soil health
KW  - soil amendment
KW  - low-rank coal
Y1  - 2021
U6  - http://dx.doi.org/10.3390/agriculture11121261
SN  - 2077-0472
N1  - This article belongs to the Special Issue "From Waste to Fertilizer in Sustainable Agriculture"
VL  - 11
IS  - 12
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Akimbekov, Nuraly S.
A1  - Digel, Ilya
A1  - Tastambek, Kuanysh T.
A1  - Marat, Adel K.
A1  - Turaliyeva, Moldir A.
A1  - Kaiyrmanova, Gulzhan K.
T1  - Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production
JF  - Biology
N2  - It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal biogeochemical dynamics and ecosystem functioning. The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in microbiology. Coal degradation/conversion technology by native bacterial and fungal species has great potential in agricultural development, chemical industry production, and environmental rehabilitation. Furthermore, native microalgal species can offer a sustainable energy source and an excellent bioremediation strategy applicable to coal spill/seam waters. Additionally, the measures of the fate of the microbial community would serve as an indicator of restoration progress on post-coal-mining sites. This review puts forward a comprehensive vision of coal biodegradation and bioprocessing by microorganisms native to coal environments for determining their biotechnological potential and possible applications.
Y1  - 2022
U6  - http://dx.doi.org/10.3390/biology11091306
SN  - 2079-7737
N1  - This article belongs to the Special Issue "Microbial Ecology and Evolution in Extreme Environments"
VL  - 11
IS  - 9
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Savitskaya, Irina
A1  - Zhantlessova, Sirina
A1  - Kistaubayeva, Aida
A1  - Ignatova, Ludmila
A1  - Shokatayeva, Dina
A1  - Sinyavsky, Yuriy
A1  - Kushugulova, Almagul
A1  - Digel, Ilya
T1  - Prebiotic cellulose–pullulan matrix as a “vehicle” for probiotic biofilm delivery to the host large intestine
JF  - Polymers
N2  - This study describes the development of a new combined polysaccharide-matrix-based technology for the immobilization of Lactobacillus rhamnosus GG (LGG) bacteria in biofilm form. The new composition allows for delivering the bacteria to the digestive tract in a manner that improves their robustness compared with planktonic cells and released biofilm cells. Granules consisting of a polysaccharide matrix with probiotic biofilms (PMPB) with high cell density (>9 log CFU/g) were obtained by immobilization in the optimized nutrient medium. Successful probiotic loading was confirmed by fluorescence microscopy and scanning electron microscopy. The developed prebiotic polysaccharide matrix significantly enhanced LGG viability under acidic (pH 2.0) and bile salt (0.3%) stress conditions. Enzymatic extract of feces, mimicking colon fluid in terms of cellulase activity, was used to evaluate the intestinal release of probiotics. PMPB granules showed the ability to gradually release a large number of viable LGG cells in the model colon fluid. In vivo, the oral administration of PMPB granules in rats resulted in the successful release of probiotics in the colon environment. The biofilm-forming incubation method of immobilization on a complex polysaccharide matrix tested in this study has shown high efficacy and promising potential for the development of innovative biotechnologies.
KW  - immobilization
KW  - prebiotic
KW  - bacterial cellulose
KW  - biofilms
KW  - Lactobacillus rhamnosus GG
Y1  - 2023
U6  - http://dx.doi.org/10.3390/polym16010030
N1  - This article belongs to the Section "Polymer Composites and Nanocomposites"
IS  - 16(1)
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Akimbekov, Nuraly
A1  - Rogachev, Evgeniy
A1  - Pogorelova, Natalia
T1  - Bacterial cellulose produced by Medusomyces gisevii on glucose and sucrose: biosynthesis and structural properties
JF  - Cellulose
N2  - In this work, the effects of carbon sources and culture media on the production and structural properties of bacterial cellulose (BC) synthesized by Medusomyces gisevii have been studied. The culture medium was composed of different initial concentrations of glucose or sucrose dissolved in 0.4% extract of plain green tea. Parameters of the culture media (titratable acidity, substrate conversion degree etc.) were monitored daily for 20 days of cultivation. The BC pellicles produced on different carbon sources were characterized in terms of biomass yield, crystallinity and morphology by field emission scanning electron microscopy (FE-SEM), atomic force microscopy and X-ray diffraction. Our results showed that Medusomyces gisevii had higher BC yields in media with sugar concentrations close to 10 g L−1 after a 18–20 days incubation period. Glucose in general lead to a higher BC yield (173 g L−1) compared to sucrose (163.5 g L−1). The BC crystallinity degree and surface roughness were higher in the samples synthetized from sucrose. Obtained FE-SEM micrographs show that the BC pellicles synthesized in the sucrose media contained densely packed tangles of cellulose fibrils whereas the BC produced in the glucose media displayed rather linear geometry of the BC fibrils without noticeable aggregates.
KW  - Bacterial cellulose
KW  - Medusomyces gisevi
KW  - Carbon sources
KW  - Culture media
KW  - Cellulose nanostructure
Y1  - 2023
U6  - http://dx.doi.org/10.1007/s10570-023-05592-z
SN  - 1572-882X (Online)
SN  - 0969-0239 (Print)
N1  - Corresponding author: Ilya Digel
PB  - Springer Science + Business Media
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Turaliyeva, M.
A1  - Yeshibaev, A.
A1  - Saparbekova, A.
A1  - Akynova, L.
A1  - Abildayeva, R.
A1  - Sadenova, M.
A1  - Sartayeva, K.
A1  - Schieffer, Andre
A1  - Digel, Ilya
T1  - Species composition and injuriousness of stranger xylophilous fauna affecting indigenous urban dendroflora of Central Asia
JF  - Asian journal of microbiology, biotechnology & environmental sciences : AJMBES
N2  - At the present time, one of the most serious environmental problems of Central Asia and South Kazakhstan is the ongoing large-scale deterioration of principal urban tree populations. Several major centers of massive spread of invasive plant pests have been found in urban dendroflora of this region. The degree of damage of seven most wide-spread aboriginal tree species was found to range from 21.4±1.1 to 85.4±1.8%. In particular, the integrity of the native communities of sycamore (Platanus spp.), willow (Salix spp.), poplar (Populus spp.) and elm (Ulmus spp.) is highly endangered. Our taxonomic analysis of the most dangerous tree pests of the region has revealed them as neobiontic xylophilous insects such as Cossus cossus L. (Order: Lepidoptera L.) Monochamus urussovi Fisch., Monochamus sutor L., Acanthocinus aedelis L. and Ñetonia aureate L. (Order: Coleoptera L.). We relate the origin of this threatening trend with the import of industrial wood in the mid 90’s of the last century that was associated with high degree of the constructional work in the region. Because of the absence of efficient natural predators of the pest species, the application of microbiological methods of the pest control and limitation is suggested.
Y1  - 2016
SN  - 0972-3005
VL  - 18
IS  - 2
SP  - 359
EP  - 366
PB  - EM International
ER  - 
TY  - JOUR
A1  - Digel, Ilya
T1  - In-situ biological decontamination of an ice melting probe
Y1  - 2010
N1  - 38th COSPAR Scientific Assembly. Held 18-15 July 2010, in Bremen, Germany
Abstract unter https://www.cospar-assembly.org/abstractcd/OLD/COSPAR-10/abstracts/data/pdf/abstracts/F36-0013-10.pdf
ER  - 
TY  - JOUR
A1  - Blome, Hans-Joachim
A1  - Seboldt, Wolfgang
A1  - Dachwald, Bernd
A1  - Richter, Lutz
T1  - Proposal for an integrated European Space Exploration Study
JF  - Space Debris and Space Traffic Management Symposium 2004 : proceedings of the International Academy of Astronautics Space Debris and Space Traffic Management Symposium, held in conjunction with the 55th International Astronautical Congress (IAC), October 4 - 8, 2004, Vancouver, British Columbia, Canada / ed. by Joerg Bendisch
Y1  - 2004
SN  - 0-87703-523-7
N1  - Proceedings IAC-2004-IAA, 3.6.1.06; Space Debris and Space Traffic Management Symposium <2004, Vancouver, British Columbia> ; International Academy of Astronautics
PB  - Univelt
CY  - San Diego, Calif.
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Seboldt, W.
A1  - Loeb, H. W
A1  - Schartner, K.-H.
T1  - Main Belt Asteroid Sample Return Mission Using Solar Electric Propulsion
JF  - Acta Astronautica. 63 (2008), H. 1-4
Y1  - 2008
SN  - 0094-5765
N1  - International Astronautical Federation Congress <58, 2007, Hyderabad> ; International Astronautical Congress <58, 2007, Hyderabad> ; IAC-07-A3.5.07
SP  - 91
EP  - 101
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Ohndorf, A.
T1  - 1st ACT Global Trajectory Optimisation Competition : Results found at DLR
JF  - Acta Astronautica. 61 (2007), H. 9
Y1  - 2007
SN  - 0094-5765
N1  - Global Trajectory Optimization ;  Results of the First Competition Organised by the Advanced Concept Team (ACT) of the European Space Agency (ESA)
SP  - 742
EP  - 752
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Seboldt, W.
A1  - Richter, L.
T1  - Multiple rendezvous and sample return missions to near-Earth objects using solar sailcraft / Dachwald, B. ; Seboldt, W. ; Richter, L.
JF  - Acta Astronautica. 59 (2006), H. 8-11
Y1  - 2006
SN  - 0094-5765
N1  - International Conference on Low Cost Planetary Missions <5, 2003, Noordwijk> ; Selected Proceedings
SP  - 768
EP  - 776
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Seboldt, W.
T1  - Multiple Near-Earth Asteroid Rendezvous and Sample Return Using First Generation Solar Sailcraft
JF  - Acta Astronautica. 57 (2005), H. 11
Y1  - 2005
SN  - 0094-5765
SP  - 864
EP  - 875
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Optimization of very-low-thrust trajectories using evolutionary neurocontrol
JF  - Acta Astronautica. 57 (2005), H. 2-8
Y1  - 2005
SN  - 0094-5765
SP  - 175
EP  - 185
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - McDonald, Malcolm
A1  - McInnes, Colin R.
A1  - Mengali, Giovanni
T1  - Impact of Optical Degradation on Solar Sail Mission Performance
JF  - Journal of Spacecraft and Rockets. 44 (2007), H. 4
Y1  - 2007
SN  - 0022-4650
N1  - 2. ISSN: 1533-6794
SP  - 740
EP  - 749
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Wi, Bong
T1  - Solar Sail Kinetic Energy Impactor Trajectory Optimization for an Asteroid-Deflection Mission
JF  - Journal of Spacecraft and Rockets. 44 (2007), H. 4
Y1  - 2007
SN  - 0022-4650
N1  - 2. ISSN: 1533-6794
SP  - 755
EP  - 764
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Minimum Transfer Times for Nonperfectly Reflecting Solar Sailcraft
JF  - Journal of Spacecraft and Rockets. 41 (2004), H. 4
Y1  - 2004
SN  - 0022-4650
N1  - 2. ISSN: 1533-6794
SP  - 693
EP  - 695
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Mengali, Giovanni
A1  - Quarta, Alessandrao A.
A1  - Macdonald, Malcolm
T1  - Parametric Model and Optimal Control of Solar Sails with Optical Degradation
JF  - Journal of guidance, control, and dynamics. 29 (2006), H. 5
Y1  - 2006
SN  - 0162-3192
N1  - 2. ISSN: 0731-5090
SP  - 1170
EP  - 1178
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Optimal Solar Sail Trajectories for Missions to the Outer Solar System
JF  - Journal of guidance, control, and dynamics. 28 (2005), H. 6
Y1  - 2005
SN  - 0162-3192
N1  - 2. ISSN: 0162-3192. - 3. ISSN: 0731-5090
SP  - 1187
EP  - 1193
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Optimization of Interplanetary Solar Sailcraft Trajectories Using Evolutionary Neurocontrol
JF  - Journal of guidance, control, and dynamics. 27 (2004), H. 1
Y1  - 2004
SN  - 0162-3192
N1  - 2. ISSN: 0162-3192. - 3. ISSN: 0731-5090
SP  - 66
EP  - 72
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Entwicklung sicherer und wartbarer Software für den Eurofighter
JF  - Soldat und Technik : Strategie und Technik, Sicherheit (1996)
Y1  - 1996
SN  - 0038-0989
SP  - 663
EP  - 668
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Kahle, Ralph
A1  - Wie, Bong
T1  - Solar Sailing Kinetic Energy Impactor (KEI) Mission Design Tradeoffs for Impacting and Deflecting Asteroid 99942 Apophis
JF  - AIAA Guidance, Navigation, and Control Conference & Exhibit - AIAA Atmospheric Flight Mechanics Conference & Exhibit - AIAA Modeling and Simulation Technologies Conference & Exhibit - AIAA/AAS Astrodynamics Specialist Conference & Exhibit : [21 - 24 August 2006, Keystone, Colorado ; papers]. - (AIAA meeting papers on disc ; [11.]2006,19-20 )
Y1  - 2006
SN  - 1-56347-802-1
N1  - American Institute of Aeronautics and Astronautics <Reston, Va.> ; American Astronautical Society ; AIAA/AAS Astrodynamics Specialist Conference & Exhibit <2006,  Keystone, Colo.> ; AIAA paper number: AIAA-2006-6178
SP  - 1
EP  - 20
PB  - American Institute of Aeronautics and Astronautics
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Ohndorf, A.
A1  - Wie, Bong
T1  - Solar Sail Trajectory Optimization for the Solar Polar Imager (SPI) Mission
JF  - AIAA Guidance, Navigation, and Control Conference & Exhibit - AIAA Atmospheric Flight Mechanics Conference & Exhibit - AIAA Modeling and Simulation Technologies Conference & Exhibit - AIAA/AAS Astrodynamics Specialist Conference & Exhibit : [21 - 24 August 2006, Keystone, Colorado ; papers]. - (AIAA meeting papers on disc ; [11.]2006,19-20 )
Y1  - 2006
SN  - 1-56347-802-1
N1  - American Institute of Aeronautics and Astronautics <Reston, Va.> ; American Astronautical Society ; AIAA/AAS Astrodynamics Specialist Conference & Exhibit <2006,  Keystone, Colo.> ; AIAA paper number: AIAA-2006-6177
PB  - American Institute of Aeronautics and Astronautics
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Seboldt, Wolfgang
A1  - Macdonald, Malcolm
A1  - Mengali, Giovanni
A1  - Quatra, Alessandro A.
A1  - McInnes, Colin R.
A1  - Rios-Reyes, Leonel
A1  - Scheerers, Daniel J.
A1  - Wie, Bong
A1  - Görlich, Marianne
A1  - Lura, Franz
A1  - Diedrich, Benjamin
A1  - Baturkin, Volodymyr
A1  - Coverstone, Victoria L.
A1  - Leipold, Manfred
A1  - Garbe, Gregory P.
T1  - Potential Solar Sail Degradation Effects on Trajectory and Attitude Control
JF  - AIAA Guidance, Navigation and Control Conference and Exhibit - AIAA Modeling and Simulation Technologies Conference and Exhibit - AIAA Atmospheric Flight Mechanics Conference and Exhibit : [San Francisco, California, 15 - 18 August 2005 ; papers]. - (AIAA meeting papers on disc ; [10.]2005,16-17)
Y1  - 2005
SN  - 1-56347-765-3
N1  - American Institute of Aeronautics and Astronautics <Reston, Va.> ; AIAA Guidance, Navigation, and Control Conference and Exhibit <2005, San Francisco, Calif.> ; AIAA paper number: AIAA-2006-6172
Link "<a href="https://arc.aiaa.org/doi/book/10.2514/MGNC05"_blank">https://arc.aiaa.org/doi/book/10.2514/MGNC05</a>" am 15.07.2022 nachgetragen Behr
PB  - American Institute of Aeronautics and Astronautics
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Seboldt, W.
A1  - Richter, L.
T1  - Multiple Rendezvous and Sample Return Missions to Near-Earth Asteroids Using Solar Sailcraft
JF  - Proceedings of the Fifth IAA International Conference on Low Cost Planetary Missions : 24 - 26 September 2003, ESTEC, Noordwijk, the Netherlands / [comp. by R. A. Harris]
Y1  - 2003
SN  - 92-9092-853-0
N1  - International Conference on Low Cost Planetary Missions <5, 2003, Noordwijk> ; International Academy of Astronautics ; European Space Research and Technology Centre
SP  - 351
EP  - 358
PB  - ESA
CY  - Noordwijk
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Wie, Bong
T1  - Solar Sail Trajectory Optimization for Intercepting, Impacting, and Deflecting Near-Earth Asteroids
JF  - AIAA Guidance, Navigation and Control Conference and Exhibit - AIAA Modeling and Simulation Technologies Conference and Exhibit - AIAA Atmospheric Flight Mechanics Conference and Exhibit : [San Francisco, California, 15 - 18 August 2005 ; papers]. - (AIAA meeting papers on disc ; [10.]2005,16-17)
Y1  - 2005
SN  - 1-56347-765-3
N1  - American Institute of Aeronautics and Astronautics <Reston, Va.> ; AIAA Guidance, Navigation, and Control Conference and Exhibit <2005, San Francisco, Calif.> ; AIAA paper number: AIAA-2006-6176
PB  - American Institute of Aeronautics and Astronautics
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Interplanetary Mission Analysis for Non-Perfectly Reflecting Solar Sailcraft Using Evolutionary Neurocontrol
JF  - Astrodynamics 2003 : proceedings of the AAS/AIAA Astrodynamics Conference held August 3 - 7, 2003, Big Sky, Montana / ed. by Jean de Lafontaine. - Pt. 2. - (Advances in the astronautical sciences ; 116,2)
Y1  - 2004
SN  - 0-87703-509-1
N1  - Astrodynamics Conference <2003, Big Sky, Mont.> ; American Institute of Aeronautics and Astronautics <Reston, Va.> ; AAS-03-579
SP  - 1247
EP  - 1262
PB  - Univelt
CY  - San Diego, Calif.
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Verwendung eines neuronalen Reglers und evolutionärer Algorithmen zur Berechnung optimaler interplanetarer Sonnenseglerbahnen
JF  - Deutscher Luft- und Raumfahrtkongress 2003 : München, 17. bis 20. November 2003, Motto: 100 Jahre Motorflug - 112 Jahre Menschenflug: Visionen gestalten Zukunft / Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V. (DGLR). [Red.: Peter Brandt (verantwortlich)]. - Bd. 1. - (Jahrbuch ... der Deutschen Gesellschaft für Luft- und Raumfahrt)
Y1  - 2003
N1  - Deutscher Luft- und Raumfahrt-Kongreß <2003, München> ; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth ; DGLR-2002-089
SP  - 211
EP  - 218
CY  - Bonn
ER  -