Results 121 to 130 of about 38,518 (252)

Homochirality in an early peptide world

, 2006
A recently proposed model of non-autocatalytic reactions in dipeptide reactions leading to spontaneous symmetry breaking and homochirality is examined. The model is governed by activation, polymerization, epimerization and depolymerization of amino acids.
Axel Brandenburg, Hare P.E., Harry J. Lehto, Kirsi M. Lehto   +3 more
core   +2 more sources

A personal 360° view of applications of ‘biomimetic’ molecular recognition

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract Molecular recognition between biological molecules has formed the basis for innumerable applications in biotechnology for the last seven decades or so. Techniques such as affinity chromatography, solid‐phase and aqueous two‐phase extraction, affinity precipitation, biomimetic catalytic systems, biosensors and molecular imprinting all exploit ...
Christopher R Lowe
wiley   +1 more source

Guidelines for nutrition in adults with head and neck cancer: The American Society for Parenteral and Enteral Nutrition

Journal of Parenteral and Enteral Nutrition, EarlyView.
Abstract Background Head and neck cancer represents the seventh most common cancer diagnosis globally. Maintaining sufficient nutrition is important for preventing malnutrition (undernutrition) and muscle wasting, which contribute to worse outcomes, although many patients are unable to maintain adequate oral intake throughout treatment.
Nicole Kiss, Merran Findlay, Jacqui Frowen, Whitney E. Lewis, Jeannine Mills, Anurag K. Singh, David D. Church, Jacob T. Mey, Sarah Peterson, Kathleen Aguzzi, Sarah Bellini, Maria Paula Villela Coelho, Laura Cordwin, Michael Duffy, Shanna Hager, Manpreet S. Mundi, Michael Owen‐Michaane, Kathleen Price, Heather Stanner, Bridget Storm, Malika Udagedara, Liam McKeever   +21 more
wiley   +1 more source

Effect of pork carnosine level on lipid and protein oxidation markers during in vitro co‐digestion in a Mediterranean meal model

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND This study assessed the effects of dietary carnosine during the in vitro digestion of a healthy meal model based on the Mediterranean diet, comprising lean pork enriched with two levels of carnosine, whole grain bread, tomato, onion, and olive oil.
Yi Yao Li, Varoujan Yaylayan, Marie‐France Palin, Tania M. Ngapo, Simon Cliche, Fleur Gagnon, Claude Gariépy   +6 more
wiley   +1 more source

Synthesis of Telechelic‐Type Polypeptides Functionalized with Aromatic Units and the Characterization of Their Structures and Thermal Properties

Macromolecular Rapid Communications, EarlyView.
Polypeptide chains were extended from both ends of aromatic diamines by chemoenzymatic polymerization, resulting in the synthesis of telechelic polyglycines (TPG) and polyalanines (TPA). These telechelic polymers assembled into branched nanofibrils through π‐π stacking of aromatic rings, with the polymer backbones bent at the aromatic unit.
Yusuke Ueno, Kousuke Tsuchiya, Hiroyasu Masunaga, Keiji Numata   +3 more
wiley   +1 more source

Regulation of Calcium Absorption in Caco-2 Cells by Aspartic Acid, Glutamic Acid and Their Glycine Dipeptides

Shipin gongye ke-ji
In order to investigate the mechanism of aspartic acid, glutamic acid and their glycine dipeptides on calcium ion uptake, the isothermal titration calorimetry technique, electrochemistry, and Caco-2 cell model combined with quantum mechanical calculation
Jiachen LIU, Yi LI, Yongqiang CHENG, Ning TANG   +3 more
doaj   +1 more source

Latex Serum‐Derived Supramolecular Networks Enable Toughening of Natural Rubber

Macromolecular Rapid Communications, EarlyView.
Latex‐serum addition enhances strain‐induced crystallization (SIC) toughening in natural rubber, increasing tearing strength and extending the SIC activation window. Supramolecular networks form via bifurcated hydrogen bonding between polyol components (e.g., quebrachitol) and end‐functionalized polyisoprene chains, serving as effective crystallization
Katsuhiko Tsunoda, Mayank Dixit, Yasuhiro Shoda, Yuji Kitamura, Takashi Taniguchi, Kenji Urayama   +5 more
wiley   +1 more source

Shear‐Induced Anisotropic Supramolecular Gel Noodles for Improved Cell Guidance in Polarized Tissue Engineering

Small, EarlyView.
A simple two‐stage extrusion aligns supramolecular fibrils into 1D gel noodles. The residual pressure in the viscous pre‐gel drives the formation of a thin filament that is locked by Ca2+ cross‐linker into a highly anisotropic segment. The aligned noodles show enhanced tensile strength and guide myoblast elongation along the fiber, mimicking aligned ...
Dipankar Ghosh, Matthew Walker, Lauren Matthews, Charlie Patterson, Oana Dobre, Massimo Vassalli, Dave J. Adams   +6 more
wiley   +1 more source

High-sensitivity profiling of dipeptides in sauce-flavor Baijiu Daqu by chemical derivatization and ultrahigh-performance liquid chromatography coupled with high-resolution mass spectrometry

Food Chemistry: X
Dipeptides in sauce-flavor Baijiu Daqu are protein degradation products during the fermentation of Daqu, which are believed to play a crucial role in the flavor and quality of Baijiu.
Zixuan Wang, Liangqiang Chen, Fan Yang, Xiaolin Wang, Yang Hu, Ting Wang, Xin Lu, Jianjun Lu, Chunxiu Hu, Huabin Tu, Guowang Xu   +10 more
doaj   +1 more source

Enantiopurity‐Dependent Peptide Coacervates and Asymmetric Organocatalysis

Small, EarlyView.
Enantiopure peptide LLLPFF‐OCH3 forms liquid–liquid phase‐separated (LLPS) droplets that act as chiral microreactors for enantioselective aldol catalysis. Racemic mixtures fail to undergo LLPS, showing spontaneous enantiomeric self‐disproportionation (SDE).
Alice Vetrano, Nico di Fonte, Olivier Monasson, Federico Perrella, Martina Porco, Ferdinando Mercuri, Gianluca Dell'Orletta, Francesco Petragnano, Alessio Carioscia, Davide Deodato, Damiano Calcagno, Giovanna Salvitti, Samantha Reale, Fabio Pesciaioli, Carino Ferrante, Davide Tedeschi, Giuseppe Grasso, Paola Benassi, Elisa Peroni, Armando Carlone, Isabella Daidone, Claudio Iacobucci   +21 more
wiley   +1 more source