Search Results - "Petzold, Katrin"

Nanocellulose as a natural source for groundbreaking applications in materials science: Today’s state by Klemm, Dieter, Cranston, Emily D., Fischer, Dagmar, Gama, Miguel, Kedzior, Stephanie A., Kralisch, Dana, Kramer, Friederike, Kondo, Tetsuo, Lindström, Tom, Nietzsche, Sandor, Petzold-Welcke, Katrin, Rauchfuß, Falk

“…Cellulose is one of the most important natural polymers on earth and its various nanoscale forms provide new opportunities for groundbreaking discoveries in…”
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Synthesis and characterization of methyl xylan by Petzold, Katrin, Günther, Wolfgang, Kötteritzsch, Manuela, Heinze, Thomas

“…The synthesis of methyl xylan using methyl chloride and methyl iodide as etherifying agent under varying reaction conditions was studied. The reaction of xylan…”
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In vitro hemo- and cytocompatibility of bacterial nanocelluose small diameter vascular grafts: Impact of fabrication and surface characteristics by Wacker, Max, Kiesswetter, Viktoria, Slottosch, Ingo, Awad, George, Paunel-Gorgulu, Adnana, Varghese, Sam, Klopfleisch, Maurice, Kupitz, Dennis, Klemm, Dieter, Nietzsche, Sandor, Petzold-Welcke, Katrin, Kramer, Friederike, Wippermann, Jens, Veluswamy, Priya, Scherner, Maximilian

“…Objective There is an increasing need for small diameter vascular grafts with superior host hemo- and cytocompatibilities, such as low activation of platelets…”
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The Reproduction Rate of Peptide Transporter PEPT-1 Deficient C. elegans Is Dependent on Dietary Glutamate Supply by Spanier, Britta, Wallwitz, Jacqueline, Zapoglou, Despoina, Idrissou, Bio Maria Ghéo, Fischer, Christine, Troll, Martina, Petzold, Katrin, Daniel, Hannelore

“…Intestinal absorption of dietary amino acids is mediated via two routes. Free amino acids released by hydrolysis of dietary proteins are taken up by a…”
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Carboxymethyl Xylan - Control of Properties by Synthesis by Petzold, Katrin, Schwikal, Katrin, Günther, Wolfgang, Heinze, Thomas

“…The hemicellulose xylan is a polysaccharide that occurs in nature in enormous amount in various one year‐ and perennial plants having different structures and…”
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FUNCTIONALIZATION PATTERN OF TERT-BUTYLDIMETHYL-SILYL CELLULOSE EVALUATED BY NMR SPECTROSCOPY by Thomas Heinze, Annett Pfeifer, Katrin Petzold

“…Tert-butyldimethylsilyl cellulose with a degree of substitution (DS) of up to 2 could be obtained by homogeneous conversion of the biopolymer with…”
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Functionalization pattern of tert-butyldimethyl-silyl cellulose evaluated by NMR spectroscopy by Heinze, Thomas, Pfeifer, Annett, Petzold, Katrin

“…Tert-butyldimethylsilyl cellulose with a degree of substitution (DS) of up to 2 could be obtained by homogeneous conversion of the biopolymer with…”
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Unconventional Cellulose Products Through Nucleophilic Displacement Reactions by Petzold-Welcke, Katrin, Michaelis, Nico, Heinze, Thomas

“…The paper highlights the synthesis of unconventionally functionalized cellulose derivatives obtained by nucleophilic displacement (SN) reactions. The key…”
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Homogeneous Sulfation of Xylan from Different Sources by Daus, Stephan, Petzold-Welcke, Katrin, Kötteritzsch, Manuela, Baumgaertel, Anja, Schubert, Ulrich S., Heinze, Thomas

“…Xylan sulfates have been prepared under homogeneous reaction conditions in DMF/LiCl applying SO3/pyridine and SO3/DMF. The degree of substitution (DSSulfate)…”
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Investigations on structure of regioselectively functionalized celluloses in solution exemplified by using 3-O-alkyl ethers and light scattering by Petzold, Katrin, Klemm, Dieter, Heublein, Brigitte, Burchard, Walther, Savin, Gabriela

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Characterization of highly substituted, cationic amphiphilic starch derivatives: Dynamic surface tension and intrinsic viscosity by Genest, Sabine, Schwarz, Simona, Petzold-Welcke, Katrin, Heinze, Thomas, Voit, Brigitte

“…The surface activity and viscometric behavior of highly substituted, amphiphilic polysaccharides, derived from potato starch by modification with benzyl‐ and…”
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Flocculation Efficiency of Novel Amphiphilic Starch Derivatives: A Comparative Study by Bratskaya, Svetlana Y., Genest, Sabine, Petzold-Welcke, Katrin, Heinze, Thomas, Schwarz, Simona

“…Flocculation properties of amphiphilic starch derivatives of varying degrees of substitution (DS) of benzyl‐ and 2‐hydroxypropyl‐trimethylammonium moieties…”
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Bioavailability and Biological Effects of 2‑O‑β‑d‑Glucopyranosyl-carboxyatractyligenin from Green Coffee in Caenorhabditis elegans by Spanier, Britta, Lang, Roman, Weber, Daniela, Lechner, Anica, Thoma, Tizia, Rothner, Marion, Petzold, Katrin, Lang, Tatjana, Beusch, Anja, Bösl, Markus, Schlagbauer, Verena, Daniel, Hannelore, Hofmann, Thomas

“…Targeted analysis of Coffea arabica and Coffea canephora green coffees (total sample size n = 57) confirmed 2-O-β-d-glucopyranosyl-carboxyatractyligenin (6) as…”
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Study on Synthesis and NMR Characterization of 2,3-O-Hydroxyethyl Cellulose Depending on Synthesis Conditions by Petzold-Welcke, Katrin, Kötteritzsch, Manuela, Fenn, Dominik, Koschella, Andreas, Heinze, Thomas

“…The synthesis of hydroxyethyl celluloses with regioselective functionalization in position 2 and 3 starting from triphenylmethyl (trityl) cellulose is…”
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Carboxymethyl xylan—synthesis and detailed structure characterization by Petzold, Katrin, Schwikal, Katrin, Heinze, Thomas

“…The synthesis of carboxymethyl xylan (CMX) applying different procedures and various slurry media (ethanol/toluene, ethanol, 2-propanol) is studied. The…”
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Xylan derivatives and their application potential – Mini-review of own results by Petzold-Welcke, Katrin, Schwikal, Katrin, Daus, Stephan, Heinze, Thomas

“…► Chemical modification is most promising to design new xylan based materials. ► Own results in synthesis of non- and ionic xylan derivatives are mainly…”
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Relation Between Maternal Angiogenic Factors and Utero-Placental Resistance in Normal First- and Second-Trimester Pregnancies by Petzold, Katrin, Jank, Alexander, Faber, Renaldo, Stepan, Holger

“…Objective. Soluble endoglin (sEng) is a novel antiangiogenic protein and elevated sEng concentrations in maternal circulation are closely related to…”
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Cationic Xylan Derivatives with High Degree of Functionalization by Schwikal, Katrin, Heinze, Thomas, Ebringerová, Anna, Petzold, Katrin

“…Xylan from birch wood was characterized regarding both the supramolecular structure (X‐ray, CP/MAS 13C‐NMR) and the sugar composition. The reaction of the…”
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Biotech nanocellulose: A review on progress in product design and today’s state of technical and medical applications by Klemm, Dieter, Petzold-Welcke, Katrin, Kramer, Friederike, Richter, Thomas, Raddatz, Vanessa, Fried, Wolfgang, Nietzsche, Sandor, Bellmann, Tom, Fischer, Dagmar

“…•A review on progress in product design of Biotech nanocellulose (BNC).•Template-based production of multilayered tubes, membranes, composites and…”
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Silylation of Cellulose and Starch – Selectivity, Structure Analysis, and Subsequent Reactions by Petzold, Katrin, Koschella, Andreas, Klemm, Dieter, Heublein, Brigitte

“…The silylation of cellulose and starch under different starting conditions is reviewed. The control of the degree of substitution (DS) and regioselectivity in…”
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