@article{DanhoNaithaniSasakietal.1980, author = {Danho, Waleed and Naithani, Vinod K. and Sasaki, Andr{\´e} N. and F{\"o}hles, Joseph and Berndt, Heinz and [u.a.],}, title = {Human proinsulin, VII : synthesis of two protected peptides corresponding to the sequences 1—45 and 46—86 of the prohormone}, series = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie}, volume = {361}, journal = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie}, number = {1}, issn = {1437-4315}, doi = {10.1515/bchm2.1980.361.1.857}, pages = {857 -- 863}, year = {1980}, language = {en} } @inproceedings{BerndtTurck1984, author = {Berndt, Heinz and Turck, Christoph W.}, title = {Syntheses of defined peptide derivatives by aminolysis of 3-[Nα-benzyloxycarbonyl peptidyloxy] -2-hydroxy-N-methyl-benzamides at elevated temperatures II. Synthesis of the peptide derivatives Z-Ala-X-Gly-N(Et)2, X=Phe, Leu, Val, Ser (But), Glu (OBut)}, series = {Chemistry of peptides and proteins : proceedings of the Fourth USSR-FRG Symposium, T{\"u}bingen, Federal Republic of Germany, June 8 - 12, 1982 / ed. Wolfgang Voelter ... - Vol. 2}, booktitle = {Chemistry of peptides and proteins : proceedings of the Fourth USSR-FRG Symposium, T{\"u}bingen, Federal Republic of Germany, June 8 - 12, 1982 / ed. Wolfgang Voelter ... - Vol. 2}, editor = {Voelter, Wolfgang}, publisher = {de Gruyter}, address = {Berlin [u.a.]}, isbn = {3-11009-580-7}, pages = {97 -- 103}, year = {1984}, language = {en} } @misc{MoehringWulfhorstCapitainetal.2016, author = {M{\"o}hring, S. and Wulfhorst, H. and Capitain, C. and Roth, J. and Tippk{\"o}tter, Nils}, title = {Fractioning of lignocellulosic biomass: Scale-down and automation of thermal pretreatment for parameter optimization}, series = {Chemie Ingenieur Technik}, volume = {88}, journal = {Chemie Ingenieur Technik}, number = {9}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.201650288}, pages = {1229}, year = {2016}, abstract = {In order to efficiently convert lignocellulose, it is often necessary to conduct a pretreatment. The biomass considered in this study typically comprises of agricultural and horticultural residues, as well as beechwood. A very environmentally friendly method, namely, fungal pretreatment using white-rot fungi, leads to an enhanced enzymatic hydrolysis. In contrast to other processes presented, the energy input is extremely low. However, the fungal growth on the lignocellulosic substrates takes several weeks at least in order to be effective. Thus, the reduction of chemicals and energy for thermal processing is a target of our current research. Liquid hot water (LHW) and solvent-based pretreatment (OrganoSolv) require more complex equipment, as they depend on high temperatures (160 - 180 °C) and enhanced pressure (up to 20 bar). However, they prove to be promising processes in regard to the fractioning of lignocellulose. For optimal lignin recovery the parameters differ from those established in cellulose extraction. A novel screening system scaled down to a reaction volume of 100 mL has been developed and successfully tested for this purpose.}, language = {en} } @article{WeldenSeverinsPoghossianetal.2022, author = {Welden, Melanie and Severins, Robin and Poghossian, Arshak and Wege, Christina and Bongaerts, Johannes and Siegert, Petra and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Detection of acetoin and diacetyl by a tobacco mosaic virus-assisted field-effect biosensor}, series = {Chemosensors}, volume = {10}, journal = {Chemosensors}, number = {6}, publisher = {MDPI}, address = {Basel}, issn = {2227-9040}, doi = {10.3390/chemosensors10060218}, pages = {Artikel 218}, year = {2022}, abstract = {Acetoin and diacetyl have a major impact on the flavor of alcoholic beverages such as wine or beer. Therefore, their measurement is important during the fermentation process. Until now, gas chromatographic techniques have typically been applied; however, these require expensive laboratory equipment and trained staff, and do not allow for online monitoring. In this work, a capacitive electrolyte-insulator-semiconductor sensor modified with tobacco mosaic virus (TMV) particles as enzyme nanocarriers for the detection of acetoin and diacetyl is presented. The enzyme acetoin reductase from Alkalihalobacillus clausii DSM 8716ᵀ is immobilized via biotin-streptavidin affinity, binding to the surface of the TMV particles. The TMV-assisted biosensor is electrochemically characterized by means of leakage-current, capacitance-voltage, and constant capacitance measurements. In this paper, the novel biosensor is studied regarding its sensitivity and long-term stability in buffer solution. Moreover, the TMV-assisted capacitive field-effect sensor is applied for the detection of diacetyl for the first time. The measurement of acetoin and diacetyl with the same sensor setup is demonstrated. Finally, the successive detection of acetoin and diacetyl in buffer and in diluted beer is studied by tuning the sensitivity of the biosensor using the pH value of the measurement solution.}, language = {en} } @article{NokiharaBerndt1979, author = {Nokihara, Kiyoshi and Berndt, Heinz}, title = {Darstellung von Bis(S-methoxycarbonylthio)-B-Kette des Rinderinsulins}, series = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie}, volume = {360}, journal = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie}, number = {1}, issn = {1437-4315}, doi = {10.1515/bchm2.1979.360.1.773}, pages = {773 -- 776}, year = {1979}, language = {de} } @article{NaithaniKlostermeyerLangeetal.1971, author = {Naithani, V. K and Klostermeyer, Henning and Lange, H. R. and [u.a.], and Berndt, Heinz and [u.a.],}, title = {Preparation of peptide derivatives for porcine proinsulin-synthesis}, series = {Biological Chemistry}, volume = {352}, journal = {Biological Chemistry}, number = {1}, publisher = {De Gruyter}, issn = {1437-4315}, doi = {10.1515/bchm2.1971.352.1.1}, pages = {2 -- 3}, year = {1971}, language = {en} } @article{SchwertnerBerndtGielenetal.1975, author = {Schwertner, Eberhard and Berndt, Heinz and Gielen, Hans-G{\"u}nter and Zahn, Helmut}, title = {Peptide 96 : Synthese einiger [2-(p-Biphenylyl)isopropyloxycarbonyl]-Aminos{\"a}urederivate}, series = {Justus Liebigs Annalen der Chemie}, volume = {75}, journal = {Justus Liebigs Annalen der Chemie}, number = {3}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1099-0690}, doi = {10.1002/jlac.197519750318}, pages = {581 -- 585}, year = {1975}, abstract = {Die Darstellung der N-[2-(p-Biphenylyl)isopropyloxycarbonyl]-Derivate (Bpoc-Derivate) des Cysteins unter Verwendung der Thiolschutzgruppen Tetrahydropyranyl (Thp) f{\"u}r 1, Diphenylmethyl (Dpm) f{\"u}r 2, Trityl (Trt) f{\"u}r 3 und S-tert.-Butyl (SBut) f{\"u}r 4 sowie die Synthese von aktivierten Estern der Bpoc-Derivate des Glycins (5), Isoleucins (6) und Prolins (7) werden beschrieben. An einem Beispiel wird die M{\"o}glichkeit aufgezeigt, die Bpoc-Gruppe {\"u}ber das Bpoc-Azid nachtr{\"a}glich in den Peptidverband einzuf{\"u}hren.}, language = {de} } @article{WolfBerndtBrandenburg1979, author = {Wolf, G{\"u}nter and Berndt, Heinz and Brandenburg, Dietrich}, title = {Synthese der [LysA13] Rinderinsulin-A-Kette in der Form [Lys(Tfa)A13]A(SO3H)4 und NαA1-Msc-[LysA13]A(SO3H)4 unter Verwendung des S-tert-Butylmercapto-Restes als Thiolschutzgruppe}, series = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie}, volume = {360}, journal = {Hoppe-Seyler's Zeitschrift f{\"u}r physiologische Chemie}, number = {2}, issn = {1437-4315}, doi = {10.1515/bchm2.1979.360.2.1569}, pages = {1569 -- 1578}, year = {1979}, language = {de} } @article{OjovanSteinmetz2022, author = {Ojovan, Michael I. and Steinmetz, Hans-J{\"u}rgen}, title = {Approaches to Disposal of Nuclear Waste}, series = {Energies}, volume = {15}, journal = {Energies}, number = {20}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {10.3390/en15207804}, pages = {Artikel 7804}, year = {2022}, abstract = {We present a concise mini overview on the approaches to the disposal of nuclear waste currently used or deployed. The disposal of nuclear waste is the end point of nuclear waste management (NWM) activities and is the emplacement of waste in an appropriate facility without the intention to retrieve it. The IAEA has developed an internationally accepted classification scheme based on the end points of NWM, which is used as guidance. Retention times needed for safe isolation of waste radionuclides are estimated based on the radiotoxicity of nuclear waste. Disposal facilities usually rely on a multi-barrier defence system to isolate the waste from the biosphere, which comprises the natural geological barrier and the engineered barrier system. Disposal facilities could be of a trench type, vaults, tunnels, shafts, boreholes, or mined repositories. A graded approach relates the depth of the disposal facilities' location with the level of hazard. Disposal practices demonstrate the reliability of nuclear waste disposal with minimal expected impacts on the environment and humans.}, language = {en} } @misc{SchumannRoginSchneideretal.2012, author = {Schumann, C. and Rogin, S. and Schneider, H. and Oster, J. and Tippk{\"o}tter, Nils and Kampeis, P.}, title = {Steuerung von HGMS-Prozessen mittels Durchflusszytometrie}, series = {Chemie Ingenieur Technik}, volume = {84}, journal = {Chemie Ingenieur Technik}, number = {8}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.201250125}, pages = {1370}, year = {2012}, abstract = {Die Hochgradientenmagnetseparation (HGMS) ist eine Methode zur Aufreinigung von biopharmazeutischen Produkten. Mit dieser Methode l{\"a}sst sich in nur einem Schritt eine Fest/Fest/Fl{\"u}ssig-Trennung erzielen, was zu einer erheblichen Zeit- und Kostenersparnis im Downstreaming f{\"u}hrt. Dennoch steht ihr industrieller Einsatz noch aus, was u. a. am Mangel an Analysenmethoden liegt, um die HGMS quantifizierbar zu machen. Gerade in der Pharmaproduktion werden Prozesse gebraucht, die gem{\"a}ß den einschl{\"a}gigen Vorschriften (cGMP) validiert und deren verfahrenstechnische Anlagenteile qualifiziert werden k{\"o}nnen. Die Schwierigkeit ist die Messung der magnetischen Mikrosorbentien in der Suspension, in der auch Zellen oder Zelltr{\"u}mmer vorliegen. Im Rahmen eines Forschungsprojektes im „Zentralen Innovationsprogramm Mittelstand" des BMWi wurden verschiedene Analysenmethoden untersucht. Die Durchflusszytometrie erm{\"o}glicht eine Charakterisierung von Partikeln und eine simultane quantitative Messung. Durch die multiparametrige Messung kann zwischen Zellen, Zelltr{\"u}mmern und Magnetpartikeln unterschieden werden. Die At-line-Einbindung des Durchflusszytometers ist durch den Einsatz einer externen Pumpe m{\"o}glich. {\"U}ber eine automatisierte Messwertanalyse kann der HGMS-Prozess mittels der Durchflusszytometrie gesteuert werden.}, language = {de} }