@article{AggarwalDhimanKumaretal.2012,
  author    = {Aggarwal, Pranav and Dhiman, Shashi K. and Kumar, G. and Scherer, Ulrich W. and Singla, M. L. and Srivastava, Alok},
  title     = {Optical study of poly(ethyleneterephthalate) modified by different ionizing radiation dose},
  series = {Indian Journal of Pure and Applied Physics},
  volume    = {50},
  journal   = {Indian Journal of Pure and Applied Physics},
  number    = {2},
  issn      = {0019-5596},
  pages     = {129 -- 132},
  year      = {2012},
  abstract  = {Thin films of poly(ethyleneterephthalate) [PET]were exposed to radiation dose ranging from 10 to 30 kGy by using gamma rays in the range 12.8-177.8 MGy using swift light ions of hydrogen. There was no effect of the radiation dose on the optical behaviour of PET as a result of exposure to radiation dose up to 30 kGy brought about by gamma rays but a significant decrease in the optical band gap values was observed when PET was exposed to swift light ions of hydrogen. The data obtained are discussed in terms of optical studies carried out on PET using swift heavy ions.},
  language  = {en}
}
@article{SrivastavaSinghAggarwaletal.2010,
  author    = {Srivastava, Alok and Singh, Virendra and Aggarwal, Pranav and Schneeweiss, F. and Scherer, Ulrich W. and Friedrich, W.},
  title     = {Optical studies of insulating polymers for radiation dose monitoring},
  series = {Indian Journal of Pure \& Applied Physics},
  volume    = {48},
  journal   = {Indian Journal of Pure \& Applied Physics},
  number    = {11},
  isbn      = {0019-5596},
  pages     = {782 -- 786},
  year      = {2010},
  language  = {en}
}
@article{BerndtGattnerZahn1975,
  author    = {Berndt, Heinz and Gattner, Hans-Gregor and Zahn, Helmut},
  title     = {Semisynthetisches Des-A1-glycin-Schafinsulin},
  series = {Biological Chemistry},
  volume    = {356},
  journal   = {Biological Chemistry},
  number    = {2},
  publisher = {De Gruyter},
  address   = {Berlin},
  issn      = {1437-4315},
  doi       = {10.1515/bchm2.1975.356.2.1455},
  pages     = {1469 -- 1472},
  year      = {1975},
  language  = {de}
}
@article{GielenWolfBerndtetal.1979,
  author    = {Gielen, Hans-G{\"u}nther and Wolf, G{\"u}nter and Berndt, Heinz and Zahn, Helmut},
  title     = {Synthese der Fragmente A1-8, A9-15 und A16-21 der Schafinsulin-A-Kette unter Verwendung des S-tert-Butylmercaptorestes 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/bchm2.1979.360.2.1535},
  pages     = {1535 -- 1548},
  year      = {1979},
  language  = {de}
}
@article{WolfBerndtBrandenburg1979,
  author    = {Wolf, Wilhelm and Berndt, Heinz and Brandenburg, Dietrich},
  title     = {Synthese von Fragmenten einer [LysA13] Rinder-Insulin-A-Kette unter Verwendung des S-tert-Butylmercaptorestes als Thiolschutz},
  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/bchm2.1979.360.2.1549},
  pages     = {1549 -- 1558},
  year      = {1979},
  language  = {de}
}
@article{WilhelmBerndtBrandenburg1979,
  author    = {Wilhelm, Wolff and Berndt, Heinz and Brandenburg, Dietrich},
  title     = {Zur Synthese der H{\"u}hnerinsulin-A-Kette, I : Darstellung der Fragmente A1-8, A9-15, A1-7 und A8-15},
  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/bchm2.1979.360.2.1559},
  pages     = {1559 -- 1568},
  year      = {1979},
  language  = {de}
}
@article{Berndt1979,
  author    = {Berndt, Heinz},
  title     = {Synthese der Sequenz 71—86 des Humanproinsulins, III : Synthese {\"u}ber die Fragmente 71—78 und 79—86},
  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/bchm2.1979.360.1.765},
  pages     = {765 -- 772},
  year      = {1979},
  language  = {de}
}
@article{OehlenschlaegerVolkmarStiefelmaieretal.2024,
  author    = {Oehlenschl{\"a}ger, Katharina and Volkmar, Marianne and Stiefelmaier, Judith and Langsdorf, Alexander and Holtmann, Dirk and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {New insights into the influence of pre-culture on robust solvent production of C. acetobutylicum},
  series = {Applied Microbiology and Biotechnology},
  volume    = {108},
  journal   = {Applied Microbiology and Biotechnology},
  publisher = {Springer},
  address   = {Berlin, Heidelberg},
  issn      = {1432-0614},
  doi       = {10.1007/s00253-023-12981-8},
  pages     = {10 Seiten},
  year      = {2024},
  abstract  = {Clostridia are known for their solvent production, especially the production of butanol. Concerning the projected depletion of fossil fuels, this is of great interest. The cultivation of clostridia is known to be challenging, and it is difficult to achieve reproducible results and robust processes. However, existing publications usually concentrate on the cultivation conditions of the main culture. In this paper, the influence of cryo-conservation and pre-culture on growth and solvent production in the resulting main cultivation are examined. A protocol was developed that leads to reproducible cultivations of Clostridium acetobutylicum. Detailed investigation of the cell conservation in cryo-cultures ensured reliable cell growth in the pre-culture. Moreover, a reason for the acid crash in the main culture was found, based on the cultivation conditions of the pre-culture. The critical parameter to avoid the acid crash and accomplish the shift to the solventogenesis of clostridia is the metabolic phase in which the cells of the pre-culture were at the time of inoculation of the main culture; this depends on the cultivation time of the pre-culture. Using cells from the exponential growth phase to inoculate the main culture leads to an acid crash. To achieve the solventogenic phase with butanol production, the inoculum should consist of older cells which are in the stationary growth phase. Considering these parameters, which affect the entire cultivation process, reproducible results and reliable solvent production are ensured.},
  language  = {en}
}
@article{KruegerGroetzingerBerndt1987,
  author    = {Kr{\"u}ger, G{\"o}tz and Gr{\"o}tzinger, Joachim and Berndt, Heinz},
  title     = {Enantiomeric resolution of amino acid derivatives on chiral stationary phases by high-performance liquid chromatography},
  series = {Journal of Chromatography A},
  volume    = {1987},
  journal   = {Journal of Chromatography A},
  number    = {397},
  issn      = {0021-9673},
  doi       = {10.1016/S0021-9673(01)85005-6},
  pages     = {223 -- 232},
  year      = {1987},
  language  = {en}
}
@article{NokiharaBerndt1978,
  author    = {Nokihara, Kiyoshi and Berndt, Heinz},
  title     = {Synthesis of hapten-polypeptide conjugates as antigen models for the N-terminal region of the α-2-chain of rabbit skin collagen},
  series = {Journal of the Royal Society of Chemistry: Perkin Transactions 1},
  volume    = {1978},
  journal   = {Journal of the Royal Society of Chemistry: Perkin Transactions 1},
  number    = {3},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1364-5463},
  doi       = {10.1039/P19780000260},
  pages     = {260 -- 263},
  year      = {1978},
  abstract  = {Synthesis of derivatives of the peptide sequence L-pyroglutamyl-L-phenylalanyl-L-aspartyl-glycyl-L-lysyl-glycyl-glycyl-glycine as the antigenic determinant representing the N-terminal non-helical region of the α-2-chain of rabbit skin collagen, and conjugation to two different polypeptide carriers, are described.},
  language  = {en}
}