TY - JOUR A1 - Zhen, Manghao A1 - Liang, Yunpei A1 - Staat, Manfred A1 - Li, Quanqui A1 - Li, Jianbo T1 - Discontinuous fracture behaviors and constitutive model of sandstone specimens containing non-parallel prefabricated fissures under uniaxial compression JF - Theoretical and Applied Fracture Mechanics N2 - The deformation and damage laws of non-homogeneous irregular structural planes in rocks are the basis for studying the stability of rock engineering. To investigate the damage characteristics of rock containing non-parallel fissures, uniaxial compression tests and numerical simulations were conducted on sandstone specimens containing three non-parallel fissures inclined at 0°, 45° and 90° in this study. The characteristics of crack initiation and crack evolution of fissures with different inclinations were analyzed. A constitutive model for the discontinuous fractures of fissured sandstone was proposed. The results show that the fracture behaviors of fissured sandstone specimens are discontinuous. The stress–strain curves are non-smooth and can be divided into nonlinear crack closure stage, linear elastic stage, plastic stage and brittle failure stage, of which the plastic stage contains discontinuous stress drops. During the uniaxial compression test, the middle or ends of 0° fissures were the first to crack compared to 45° and 90° fissures. The end with small distance between 0° and 45° fissures cracked first, and the end with large distance cracked later. After the final failure, 0° fissures in all specimens were fractured, while 45° and 90° fissures were not necessarily fractured. Numerical simulation results show that the concentration of compressive stress at the tips of 0°, 45° and 90° fissures, as well as the concentration of tensile stress on both sides, decreased with the increase of the inclination angle. A constitutive model for the discontinuous fractures of fissured sandstone specimens was derived by combining the logistic model and damage mechanic theory. This model can well describe the discontinuous drops of stress and agrees well with the whole processes of the stress–strain curves of the fissured sandstone specimens. KW - Constitutive model KW - Damage mechanics theory KW - Discontinuous fractures KW - Uniaxial compression test KW - Non-parallel fissures Y1 - 2024 U6 - http://dx.doi.org/10.1016/j.tafmec.2024.104373 SN - 0167-8442 VL - 131 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Zerlin, Kay A1 - Kasischke, Nicole A1 - Digel, Ilya A1 - Maggakis-Kelemen, Christina A1 - Temiz Artmann, Aysegül A1 - Porst, Dariusz A1 - Kayser, Peter A1 - Linder, Peter A1 - Artmann, Gerhard T1 - Structural transition temperature of hemoglobins correlates with species’ body temperature JF - European Biophysics Journal. 37 (2007), H. 1 Y1 - 2007 SN - 1432-1017 SP - 1 EP - 10 ER - TY - JOUR A1 - Zerlin, Kay A1 - Digel, Ilya A1 - Stadler, Andreas M. A1 - Büldt, Georg A1 - Zaccai, Guiseppe A1 - Artmann, Gerhard T1 - Dynamics and interactions of hemoglobin in human red blood cells and concentrated hemoglobin solutions JF - Regenerative medicine. 2 (2007), H. 5 Y1 - 2007 SN - 1746-0751 N1 - Proceedings of the 3rd World Congress on Regenerative Medicine. October 18-20, 2007. Leipzig, Germany SP - 573 EP - 573 ER - TY - JOUR A1 - Zange, Jochen A1 - Schopen, Kathrin A1 - Albracht, Kirsten A1 - Gerlach, Darius A. A1 - Frings-Meuthen, Petra A1 - Maffiuletti, Nicola A. A1 - Bloch, Wilhelm A1 - Rittweger, Jörn T1 - Using the Hephaistos orthotic device to study countermeasure effectiveness of neuromuscular electrical stimulation and dietary lupin protein supplementation, a randomised controlled trial JF - Plos one Y1 - 2017 U6 - http://dx.doi.org/10.1371/journal.pone.0171562 VL - 12 IS - 2 ER - TY - BOOK A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef ED - Yoshinobu, Tatsuo ED - Schöning, Michael Josef T1 - Light-addressing and chemical imaging technologies for electrochemical sensing Y1 - 2020 SN - 978-3-03943-029-1 U6 - http://dx.doi.org/10.3390/books978-3-03943-029-1 N1 - This book is a printed edition of the Special Issue Light-Addressing and Chemical Imaging Technologies for Electrochemical Sensing that was published in Sensors PB - MDPI CY - Basel ER - TY - JOUR A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - Light-addressable potentiometric sensors (LAPS) for cell monitoring and biosensing JF - Current Opinion in Electrochemistry Y1 - 2021 U6 - http://dx.doi.org/10.1016/j.coelec.2021.100727 SN - 2451-9103 IS - In Press, Journal Pre-proof PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Yoshinobu, Tatsuo A1 - Moritz, Werner A1 - Finger, Friedhelm A1 - Schöning, Michael Josef ED - Comini, Elisabetta T1 - Application of thin-film amorphous silicon to chemical imaging JF - Nanostructured materials and hybrid composites for gas sensors and biomedical applications : symposium held April 18-20, 2006, San Francisco , California, U.S.A. Y1 - 2006 SN - 9781558998711 N1 - Materials Research Society symposia proceedings; v. 915 IS - Paper 0910-A-20-01 SP - 1 EP - 10 ER - TY - JOUR A1 - Yoshinobu, Tatsuo A1 - Miyamoto, Ko-ichiro A1 - Werner, Frederik A1 - Poghossian, Arshak A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Light-addressable potentiometric sensors for quantitative spatial imaging of chemical species JF - Annual Review of Analytical Chemistry N2 - A light-addressable potentiometric sensor (LAPS) is a semiconductor-based chemical sensor, in which a measurement site on the sensing surface is defined by illumination. This light addressability can be applied to visualize the spatial distribution of pH or the concentration of a specific chemical species, with potential applications in the fields of chemistry, materials science, biology, and medicine. In this review, the features of this chemical imaging sensor technology are compared with those of other technologies. Instrumentation, principles of operation, and various measurement modes of chemical imaging sensor systems are described. The review discusses and summarizes state-of-the-art technologies, especially with regard to the spatial resolution and measurement speed; for example, a high spatial resolution in a submicron range and a readout speed in the range of several tens of thousands of pixels per second have been achieved with the LAPS. The possibility of combining this technology with microfluidic devices and other potential future developments are discussed. Y1 - 2017 U6 - http://dx.doi.org/10.1146/annurev-anchem-061516-045158 SN - 1936-1327 VL - 10 SP - 225 EP - 246 PB - Annual Reviews CY - Palo Alto, Calif. ER - TY - CHAP A1 - Yoshinobu, Tatsuo A1 - Miyamoto, Ko-Ichiro A1 - Wagner, Torsten A1 - Schöning, Michael Josef ED - Yamaguchi, Takami T1 - Miniaturized and high-speed chemical imaging systems T2 - Nano-Biomedical Engineering 2012. Proceedings of the Tohoku University Global Centre of Excellence Programme, Sakura Hall, Tohoku University, Sendai Japan, 5 – 6 March 2012 Y1 - 2012 U6 - http://dx.doi.org/10.1142/9781848169067_0045 SP - 386 EP - 395 PB - World Scientific CY - Singapur ER - TY - JOUR A1 - Yoshinobu, Tatsuo A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Recent developments of chemical imaging sensor systems based on the principle of the light-addressable potentiometric sensor JF - Sensors and actuators B: Chemical N2 - The light-addressable potentiometric sensor (LAPS) is an electrochemical sensor with a field-effect structure to detect the variation of the Nernst potential at its sensor surface, the measured area on which is defined by illumination. Thanks to this light-addressability, the LAPS can be applied to chemical imaging sensor systems, which can visualize the two-dimensional distribution of a particular target ion on the sensor surface. Chemical imaging sensor systems are expected to be useful for analysis of reaction and diffusion in various electrochemical and biological samples. Recent developments of LAPS-based chemical imaging sensor systems, in terms of the spatial resolution, measurement speed, image quality, miniaturization and integration with microfluidic devices, are summarized and discussed. Y1 - 2015 U6 - http://dx.doi.org/10.1016/j.snb.2014.09.002 SN - 1873-3077 (E-Journal); 0925-4005 (Print) VL - 207, Part B SP - 926 EP - 932 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Yoshinobu, Tatsuo A1 - Miyamoto, Ko-ichiro A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Field-effect sensors combined with the scanned light pulse technique: from artificial olfactory images to chemical imaging technologies JF - Chemosensors N2 - The artificial olfactory image was proposed by Lundström et al. in 1991 as a new strategy for an electronic nose system which generated a two-dimensional mapping to be interpreted as a fingerprint of the detected gas species. The potential distribution generated by the catalytic metals integrated into a semiconductor field-effect structure was read as a photocurrent signal generated by scanning light pulses. The impact of the proposed technology spread beyond gas sensing, inspiring the development of various imaging modalities based on the light addressing of field-effect structures to obtain spatial maps of pH distribution, ions, molecules, and impedance, and these modalities have been applied in both biological and non-biological systems. These light-addressing technologies have been further developed to realize the position control of a faradaic current on the electrode surface for localized electrochemical reactions and amperometric measurements, as well as the actuation of liquids in microfluidic devices. KW - visualization KW - light-addressing technologies KW - scanned light pulse technique KW - field-effect structure KW - MOS KW - metal-oxide-semiconductor structure KW - catalytic metal KW - electronic nose KW - gas sensor KW - artificial olfactory image Y1 - 2024 U6 - http://dx.doi.org/10.3390/chemosensors12020020 SN - 2227-9040 N1 - This article belongs to the Special Issue "An Exciting Journey of Chemical Sensors and Biosensors: A Theme Issue in Honor of Professor Ingemar Lundström" Corresponding author: Tatsuo Yoshinobu, Michael J. Schöning VL - 12 IS - 2 PB - MDPI CY - Basel ER - TY - CHAP A1 - Yoshinobu, Tatsuo A1 - Krause, Steffi A1 - Miyamoto, Ko-ichiro A1 - Werner, Frederik A1 - Poghossian, Arshak A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - (Bio-)chemical Sensing and Imaging by LAPS and SPIM T2 - Label-free biosensing: advanced materials, devices and applications N2 - The light-addressable potentiometric sensor (LAPS) and scanning photo-induced impedance microscopy (SPIM) are two closely related methods to visualise the distributions of chemical species and impedance, respectively, at the interface between the sensing surface and the sample solution. They both have the same field-effect structure based on a semiconductor, which allows spatially resolved and label-free measurement of chemical species and impedance in the form of a photocurrent signal generated by a scanning light beam. In this article, the principles and various operation modes of LAPS and SPIM, functionalisation of the sensing surface for measuring various species, LAPS-based chemical imaging and high-resolution sensors based on silicon-on-sapphire substrates are described and discussed, focusing on their technical details and prospective applications. KW - Chemical imaging KW - Field-effect device KW - Light-addressable potentiometric sensor KW - Potentiometry Y1 - 2018 SN - 978-3-319-75219-8 SP - 103 EP - 132 PB - Springer CY - Cham ER - TY - JOUR A1 - Yoshinobu, T. A1 - Yasuhito, U. A1 - Iwasaki, H. A1 - Näther, Niko A1 - Schöning, Michael Josef A1 - Koudelka-Hep, M. T1 - Applications of the light-addressable potentiometric sensor to microfluidic devices JF - Digest of technical papers : September 12 - 15, 2004, Rome, Italy, Pontificia Universitas Sancto Thoma Aquinate in Urbe / [conference chairperson: C. Di Natale]. Y1 - 2004 SN - 88-7621-282-5 N1 - Eurosensors ; (18, 2004, Roma) SP - 434 EP - 437 CY - Roma ER - TY - JOUR A1 - Yoshinobu, T. A1 - Ui, Y. A1 - Iwasaki, H. A1 - Näther, Niko A1 - Koudelka-Hep, M. A1 - Schöning, Michael Josef T1 - Potentiometric imaging in a microfluidic channel JF - Biomedizinische Technik. 49 (2004), H. 2 Y1 - 2004 SN - 0932-4666 SP - 998 EP - 999 ER - TY - JOUR A1 - Yoshinobu, T. A1 - Schöning, Michael Josef A1 - Otto, R. A1 - Furuichi, K. A1 - Mourzina, Yu A1 - Ermelenko, Yu A1 - Iwasaki, I. T1 - Portable light-addressable potentiometric sensor (LAPS) for multisensor applications JF - Book of abstracts / ed. by J. Saneistr. Y1 - 2002 SN - 80-01-02576-4 N1 - Eurosensors ; (16, 2002, Praha) SP - 898 EP - 901 PB - Czech Technical University, Faculty of Electrical Engineering, Department of Measurement CY - Prague ER - TY - JOUR A1 - Yoshinobu, T. A1 - Schöning, Michael Josef A1 - Otto, R. A1 - Furuichi, K. A1 - Mourzina, Y. A1 - Ermelenko, Y. A1 - Iwasaki, H. T1 - Portable light-addressable potentiometric sensor (LAPS) for multisensor applications JF - Sensors and Actuators B. 95 (2003), H. 1-3 Y1 - 2003 SN - 0925-4005 SP - 352 EP - 356 ER - TY - JOUR A1 - Yoshinobu, T. A1 - Schöning, Michael Josef A1 - Finger, F. A1 - Moritz, W. A1 - Iwasaki, H. T1 - Fabrication of thin-film LAPS with amorphous silicon JF - Sensors. 4 (2004), H. 10 Y1 - 2004 SN - 1424-8220 SP - 163 EP - 169 ER - TY - CHAP A1 - Yoshinobu, T. A1 - Schöning, Michael Josef A1 - Finger, F. A1 - Moritz, W. A1 - Iwasaki, H. T1 - Thin-film a-Si LAPS : Preparation and pH sensitivity T2 - Eurosensors XVII : the 17th European Conference on Solid-State Transducers ; University of Minho, Guimarães, Portugal, September 21 - 24, 2003 Y1 - 2003 SP - 88 EP - 89 ER - TY - JOUR A1 - Yoshinobu, T. A1 - Iwasaki, H. A1 - Ui, Y. A1 - Furuichi, K. A1 - Ermelenko, Y. A1 - Mourzina, Y. A1 - Wagner, Torsten A1 - Näther, Niko A1 - Schöning, Michael Josef T1 - The light-addressable potentiometric sensor for multi-ion sensing and imaging JF - Methods. 37 (2005), H. 1 Y1 - 2005 SN - 1046-2023 SP - 99 EP - 102 ER - TY - JOUR A1 - Yoshinobu, T. A1 - Ermelenko, Y. A1 - Mourzina, Y. A1 - Schöning, Michael Josef A1 - Iwasaki, H. A1 - Vlasov, Y. T1 - Multi-component analysis based on the light-addressable potentiometric sensor (LAPS) JF - Proceedings : 11th international conference Sensor 2003; 13 - 15 May 2003, Exhibition Centre Nuremberg, Germany Y1 - 2003 N1 - Internationale Messe mit Kongress Sensor <11, 2003, Nürnberg> SP - 141 EP - 144 PB - AMA Service CY - Wunstorf ER -