@article{WangDruckenmuellerElbersetal.2014,
  author    = {Wang, Ren-Qi and Druckenm{\"u}ller, Katharina and Elbers, Gereon and Guenther, Klaus and Crou{\´e}, Jean-Philippe},
  title     = {Analysis of aquatic-phase natural organic matter by optimized LDI-MS method},
  series = {Journal of mass spectrometry},
  volume    = {49},
  journal   = {Journal of mass spectrometry},
  number    = {2},
  publisher = {Wiley},
  address   = {Bognor Regis},
  issn      = {1096-9888},
  doi       = {10.1002/jms.3321},
  pages     = {154 -- 160},
  year      = {2014},
  abstract  = {The composition and physiochemical properties of aquatic-phase natural organic matter (NOM) are most important problems for both environmental studies and water industry. Laser desorption/ionization (LDI) mass spectrometry facilitated successful examinations of NOM, as humic and fulvic acids in NOM are readily ionized by the nitrogen laser. In this study, hydrophobic NOMs (HPO NOMs) from river, reservoir and waste water were characterized by this technique. The effect of analytical variables like concentration, solvent composition and laser energy was investigated. The exact masses of small molecular NOM moieties in the range of 200-1200 m/z were determined in reflectron mode. In addition, spectra of post-source-decay experiments in this range showed that some compounds from different natural NOMs had the same fragmental ions. In the large mass range of 1200-15 000 Da, macromolecules and their aggregates were found in HPO NOMs from natural waters. Highly humic HPO exhibited mass peaks larger than 8000 Da. On the other hand, the waste water and reservoir water mainly had relatively smaller molecules of about 2000 Da. The LDI-MS measurements indicated that highly humic river waters were able to form large aggregates and membrane foulants, while the HPO NOMs from waste water and reservoir water were unlikely to form large aggregates. Copyright © 2014 John Wiley \& Sons, Ltd.},
  language  = {en}
}
@article{HandtkeSchroeterJuergenetal.2014,
  author    = {Handtke, Stefan and Schroeter, Rebecca and J{\"u}rgen, Britta and Methling, Karen and Schl{\"u}ter, Rabea and Albrecht, Dirk and Hijum, Sacha A. F. T. van and Bongaerts, Johannes and Maurer, Karl-Heinz and Lalk, Michael and Schweder, Thomas and Hecker, Michael and Voigt, Birgit},
  title     = {Bacillus pumilus reveals a remarkably high resistance to hydrogen peroxide provoked oxidative stress},
  series = {PLOS one},
  volume    = {9},
  journal   = {PLOS one},
  number    = {1},
  publisher = {PLOS},
  address   = {San Francisco},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0085625},
  pages     = {e85625},
  year      = {2014},
  abstract  = {Bacillus pumilus is characterized by a higher oxidative stress resistance than other comparable industrially relevant Bacilli such as B. subtilis or B. licheniformis. In this study the response of B. pumilus to oxidative stress was investigated during a treatment with high concentrations of hydrogen peroxide at the proteome, transcriptome and metabolome level. Genes/proteins belonging to regulons, which are known to have important functions in the oxidative stress response of other organisms, were found to be upregulated, such as the Fur, Spx, SOS or CtsR regulon. Strikingly, parts of the fundamental PerR regulon responding to peroxide stress in B. subtilis are not encoded in the B. pumilus genome. Thus, B. pumilus misses the catalase KatA, the DNA-protection protein MrgA or the alkyl hydroperoxide reductase AhpCF. Data of this study suggests that the catalase KatX2 takes over the function of the missing KatA in the oxidative stress response of B. pumilus. The genome-wide expression analysis revealed an induction of bacillithiol (Cys-GlcN-malate, BSH) relevant genes. An analysis of the intracellular metabolites detected high intracellular levels of this protective metabolite, which indicates the importance of bacillithiol in the peroxide stress resistance of B. pumilus.},
  language  = {en}
}
@phdthesis{Berndt1972,
  author    = {Berndt, Heinz},
  title     = {Zur Synthese der Sequenz 60-84[Ala71, Gly72, Val73] des Schweineproinsulins als monomeres cyclisches Bis-Cystinpeptidderivat},
  address   = {Aachen},
  pages     = {115 S.},
  year      = {1972},
  language  = {de}
}
@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}
}
@misc{BerndtHoeckerKuropkaetal.1991,
  author    = {Berndt, Heinz and H{\"o}cker, Hartwig and Kuropka, Rolf and Kinkel, Joachim},
  title     = {Silane coated inorganic materials for chromatography : United States Patent},
  publisher = {[The United States Patent and Trademark Office]},
  address   = {[Alexandria, VA u.a.]},
  pages     = {9 S. : graph. Darst.},
  year      = {1991},
  language  = {en}
}
@misc{BerndtHoeckerKuropkaetal.1990,
  author    = {Berndt, Heinz and H{\"o}cker, Hartwig and Kuropka, Rolf and Kinkel, Joachim},
  title     = {Silanderivate : Europ{\"a}ische Patenschrift / Offenlegungsschrift},
  publisher = {Europ{\"a}isches Patentamt / Deutsches Patent- und Markenamt},
  address   = {Den Hague / M{\"u}nchen},
  pages     = {10 S. / 13 S. : graph. Darst.},
  year      = {1990},
  language  = {de}
}
@book{Berndt2014,
  author    = {Berndt, Heinz},
  title     = {Neue Kondensations-Methoden zur Synthese definierter Peptid-Derivate},
  address   = {Aachen},
  pages     = {XII, VI, 207 S. : graph. Darst.},
  year      = {2014},
  language  = {de}
}
@inproceedings{KroggelBerndt1984,
  author    = {Kroggel, Matthias and Berndt, Heinz},
  title     = {The 0-hydroxiphenyloxicarbonyl-group a new base labile amine protecting group},
  series = {Peptides 1984 : Proceedings of the 18th European Peptide Symposium Djur{\"o}n{\"a}set, Sweden, June 10 - 15, 1984},
  booktitle = {Peptides 1984 : Proceedings of the 18th European Peptide Symposium Djur{\"o}n{\"a}set, Sweden, June 10 - 15, 1984},
  editor    = {Ragnarsson, Ulf},
  publisher = {Almquist \& Wiksell},
  address   = {Stockholm},
  isbn      = {91-22-00715-6},
  pages     = {81 -- 83},
  year      = {1984},
  language  = {en}
}
@inproceedings{SchnabelBerndt1973,
  author    = {Schnabel, Eberhard and Berndt, Heinz},
  title     = {Zur selektive Abspaltbarkeit der t-Butyloxycarbonylgruppe},
  series = {Peptides 1971 : proceedings of the Eleventh European Peptide Symposium, Vienna, Austria, April 1971},
  booktitle = {Peptides 1971 : proceedings of the Eleventh European Peptide Symposium, Vienna, Austria, April 1971},
  editor    = {Nesvadba, H.},
  publisher = {North-Holland Publ. [u.a.]},
  address   = {Amsterdam [u.a.]},
  isbn      = {0-7204-4120-X},
  pages     = {69 -- 70},
  year      = {1973},
  language  = {en}
}
@inproceedings{ZahnBerndtFehrenbach1973,
  author    = {Zahn, Helmut and Berndt, Heinz and Fehrenbach, P.},
  title     = {Synthese cyclischer Cystinpeptide mit Insulin A-und B-Kettensequenzen},
  series = {Peptides 1972 : proceedings of the Twelfth European Peptide Symposium, Reinhardsbrunn Castle, German Democratic Republic, September 1972},
  booktitle = {Peptides 1972 : proceedings of the Twelfth European Peptide Symposium, Reinhardsbrunn Castle, German Democratic Republic, September 1972},
  editor    = {Hanson, Horst},
  publisher = {North-Holland Publ. [u.a.],},
  address   = {Amsterdam [u.a.]},
  isbn      = {0-7204-4132-3},
  pages     = {101 -- 102},
  year      = {1973},
  language  = {de}
}