Results 91 to 100 of about 356,368 (292)

COMPUTATIONAL INVESTIGATION ON THE STRUCTURE AND NMR CHEMICAL SHIFTS OF ENDO-CONE [CS₂(p-METHYLCALIX[4]ARENE)] COMPLEX

Indonesian Journal of Chemistry, 2010
The structure and NMR chemical shifts of endo-cone [CS2(p-methylcalix[4]arene)] complex have been computationally investigated using BIO+ force fields, semi-empirical (PM3) and ab initio (RHF/6-311G++(d,p)) calculations. The first comparison of ab initio
Hanggara Sudrajat, Muhammad S. Saefullah, Danis Sriwijaya, Mirta A. Putri, Ria Armunanto   +4 more
doaj   +1 more source

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source

Scalable Polyelectrolyte Complex‐Based Sorbent With Hourly Sorption−Desorption Cycles for Multicyclic Atmospheric Water Harvesting in Arid Environments

Advanced Functional Materials, EarlyView.
A polyelectrolyte complex‐based sorbent is produced by scalable, environmentally benign aqueous phase inversion. Its porous, LiCl‐ and GO‐integrated architecture enables hourly adsorption−desorption cycles at low relative humidity (RH < 30%). A large‐scale prototype achieves multicyclic, solar‐driven atmospheric water harvesting of 1.37 L kg−1 day−1 ...
Seung‐Hwan Oh, Incheol Heo, Won Cheol Yoo, Soo‐Hyung Choi   +3 more
wiley   +1 more source

First Principles NMR Study of Fluorapatite under Pressure

, 2012
NMR is the technique of election to probe the local properties of materials. Herein we present the results of density functional theory (DFT) \textit{ab initio} calculations of the NMR parameters for fluorapatite (FAp), a calcium orthophosphate mineral ...
Astala, Barbara Pavan, Bengtsson, Braun, Calderin, Chappell, Charpentier, Cheeseman, Comodi, Comodi, Davide Ceresoli, De Leeuw, De Leeuw, Ditchfield, Dorozhkin, Dupree, Gervais, Giannozzi, Harris, Harris, Keith, Kutzelnigg, Laurencin, Le Roux, LeGeros, Liang, Lin, Louis-Achille, Mackenzie, Marco Fornari, Mary M.J. Tecklenburg, Mason, Matsos, Matsukage, Mauri, Momma, Parr, Peeters, Perdew, Peroos, Pickard, Pourpoint, Profeta, Raghavan, Rakovan, Rosin-Grget, Rulis, Sahai, Sardar, Schindler, Shannon, Sudarsan, Tamm, Tribble, Wang, Wellman, Wentzcovitch, Williams, Wong, Wu, Xu, Zahn, Zheng   +62 more
core   +1 more source

Dual‐Layer Living Hydrogel Enables On‐Demand Delivery of Phages and Probiotics for Synergistic Wound Infection Therapy

Advanced Functional Materials, EarlyView.
A dual‐layer living hydrogel, ProΦGel, integrates bacteriophages and probiotics for synergistic wound infection therapy. The outer gelatin‐based matrix releases phages on demand in response to P. aeruginosa infections, while inner alginate beads sustain probiotic delivery.
Siyuan Tao, Darine D'Adam, Anna Hu, Sixuan Zhang, Josua Roduner, Katharina Maniura‐Weber, Qun Ren   +6 more
wiley   +1 more source

Theory and applications of supercycled symmetry-based recoupling sequences in solid-state NMR

, 2006
We present the theoretical principles of supercycled symmetry-based recoupling sequences in solid-state magic-angle-spinning NMR. We discuss the construction procedure of the SR26 pulse sequence, which is a particularly robust sequence for double-quantum
Carravetta, Marina, Kristiansen, Per Eugen, Lai, Wai Cheu, Levitt, Malcolm H., van Beek, Jacco D.   +4 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Harnessing the Orientation of Columnar Discotic Liquid Crystals for Narrowband Blue Emission with Enhanced Out‐Coupling Efficiency Toward Improvement of SP‐OLEDs Performance

Advanced Functional Materials, EarlyView.
Solution‐processed OLEDs containing discotic liquid‐crystalline MR‐TADF emitters are reported. Supramolecular self‐assembly induces homeotropic columnar alignment, enforcing preferential horizontal orientation of the emitter transition dipole moment in spin‐coated films, which leads to an enhancement in the device light outcoupling efficiency while ...
Joydip De, Abhishek Kumar Gupta, Džiugas Litvinas, Francisco Tenopala‐Carmona, Matthias Lehmann, Malte C. Gather, Eli Zysman‐Colman   +6 more
wiley   +1 more source

Structural analysis of silk using solid-state NMR

Magnetic Resonance Letters
Silkworms and spiders are capable of generating fibers that are both highly durable and elastic in a short span of time, using a silk solution stored within their bodies at room temperature and normal atmospheric pressure.
Tetsuo Asakura
doaj   +1 more source

Design and Fabrication of a Magic-Angle Spinning Rotor for Solid-State Nuclear Magnetic Resonance Probe

Chinese Journal of Magnetic Resonance, 2019
Magic-angle spinning (MAS) rotor, a device for high-speed spinning of solid samples, is an essential component of the probes used in solid-state nuclear magnetic resonance (NMR) experiments.
WANG Jia-xin, FENG Ji-wen, CHEN Jun-fei, WANG Li-ying, LIU Chao-yang   +4 more
doaj   +1 more source