Results 61 to 70 of about 779,586 (254)

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

Advanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen, Xudan Xing, Haopu Su, Dominik Voll, Xiaohe Xu, Jiafeng Wan, Tongtong Cui, Christian W. Schmitt, Stefan Bräse, Peng Li, Patrick Théato   +10 more
wiley   +1 more source

Complex Mixture Analysis of Organic Compounds in Yogurt by NMR Spectroscopy

Metabolites, 2016
NMR measurements do not require separation and chemical modification of samples and therefore rapidly and directly provide non-targeted information on chemical components in complex mixtures.
Yi Lu, Fangyu Hu, Takuya Miyakawa, Masaru Tanokura   +3 more
doaj   +1 more source

Removal of slow-pulsing artifacts in in-phase 15N relaxation dispersion experiments using broadband 1H decoupling [PDF]

, 2018
Understanding of the molecular mechanisms of protein function requires detailed insight into the conformational landscape accessible to the protein. Conformational changes can be crucial for biological processes, such as ligand binding, protein folding ...
NMR Spectroscopy, Ubbink, Marcellus, Sub NMR Spectroscopy, Chatterjee, Soumya Deep, van Ingen, Hugo   +4 more
core   +1 more source

Reversible Tuning of Multiple Molecular Kinking for Stem Cell Regulation In Vivo

Advanced Functional Materials, EarlyView.
In this work, we introduce the novel concept of background component‐free “multiple kinks” material platform composed solely of liganded multiple kink‐bearing molecules as a strategy for dynamic biomaterial design. Tri‐kink molecules enable effective near‐infrared light‐triggered ligand masking and visible light‐triggered ligand exposure, thereby ...
Kanghyeon Kim, Jeongah Shin, Chowon Kim, Honghwan Choi, Dahee Kim, Sungkyu Lee, Choongmo Kang, Hyunsik Hong, Taehoon Ha, Nayeon Kang, Jungyeon Rhi, Ramar Thangam, Yuri Kim, Jeongyun Heo, Cheol Hwan Kwak, Jangsun Hwang, Daun Jeong, Rasoul Moradi, Sunghoon Hur, Hyun‐Cheol Song, Hyun‐Do Jung, Min Jae Lee, Rongqin Huang, Pooyan Makvandi, Yun Suk Huh, Ji Hye Choi, Wenguo Cui, Sehoon Kim, Heemin Kang   +28 more
wiley   +1 more source

Development of identification test methods for triptorelin acetate and goserelin acetate substances using NMR spectroscopy

Регуляторные исследования и экспертиза лекарственных средств, 2019
The work is a continuation of the research on the use of NMR spectroscopy in the quality control of natural peptide hormone-based active substances and their synthetic analogues.
S. V Moiseev, N. E. Kuz’mina, A. I. Luttseva   +2 more
doaj   +1 more source

Donor‐Engineered Chiral Indium–Salen Complexes for Tunable Circularly Polarized Luminescence

Advanced Functional Materials, EarlyView.
Chiral indium–salen complexes bearing electronically and structurally diverse donor substituents are presented as modular main‐group luminophores exhibiting tunable blue‐to‐green circularly polarized luminescence. Donor engineering systematically controls frontier‐orbital distribution, intraligand charge transfer, and excited‐state relaxation ...
Haein Kim, Minseo Ji, Khuslen Bazarragchaa, Yubin Choi, Gahyeon Baek, Ji Hye Lee, Heekyung Park, Houng Kang, Hyonseok Hwang, Huiyeong Ju, Jun Hui Park, Youngjo Kim, Min Kim, Youngmin You, Myung Hwan Park   +14 more
wiley   +1 more source

5-Dimethylamino-1-phenylchromeno[2,3-c]pyrazol-4(1H)-one

Molbank, 2010
The title compound was prepared by treatment of 5-fluoro-1-phenylchromeno [2,3-c]pyrazol-4(1H)-one with aqueous dimethylamine. Detailed spectroscopic data (1H NMR, 13C NMR, 15N NMR, IR, MS) are presented.
Wolfgang Holzer, Angelika Ebner
doaj   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Research on 1H NMR spectrum optimization of 2,3-benzodiazepines based on conformational isomerism

Results in Chemistry
To address the issue of multiple sets of signal peaks and irregular peak shapes in the 1H NMR spectra of some 2,3-benzodiazepines due to conformational isomerism, 1H NMR experiments were conducted using 2,3-benzodiazepines 1 as examples, with variations ...
Fei Zhang, Ya-Li Ding
doaj   +1 more source

A Gallium-based Chiral Solvating Agent Enables the Use of 1H NMR Spectroscopy to Differentiate Chiral Alcohols

iScience, 2019
Summary: In situ, direct 1H NMR chiral analysis by using chiral solvating agents is a convenient and efficient analytical technique. Here we developed a Ga-based chiral anionic metal complex for 1H NMR chiral analysis of alcohols.
Sumin Jang, Hyunwoo Kim
doaj   +1 more source