Results 221 to 230 of about 161,231 (277)

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

Advanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok, Florian Bärtl, Di Zhou, Toni Helm, Sven Luther, Joachim Wosnitza, Ivan A. Troyan, Viktor V. Struzhkin, Hannes Kühne   +8 more
wiley   +1 more source

EGaIn‐Activated Bioinspired Silk Micro/Nanofibril Eutectogels Breaking the Strength–Conductivity Trade‐Off for High‐Performance Wearable Bioelectronics

Advanced Science, EarlyView.
Inspired by the extracellular matrix, eutectogels are prepared by in situ deconstruction of silk fibroin into micro/nanofibrils and EGaIn‐induced polymerization. The multiscale fibril network with dynamic crosslinking achieves high strength (1.25 MPa), toughness (23.09 MJ m−3), and conductivity (1.51 S m−1), outperforming previous natural polymer ...
Haiwei Yang, Dongdong Ye, Yezi You, Ming Fu, Zongqian Wang   +4 more
wiley   +1 more source

Construction of Skin‐Adaptable Slide‐Ring Hydrogels Based on Bile Acids Derived Polyrotaxanes for Smart Wound Dressing

Advanced Science, EarlyView.
A novel β‐cyclodextrin/bile acid‐based slide‐ring hydrogel was prepared via precise host–guest recognition and photopolymerization. This smart hydrogel dressing exhibited skin‐adaptive mechanical properties, pH‐responsive antibacterial activity, and integrated multi‐signal sensing (temperature, blood, and pressure) for advanced wound management ...
Wen Huang, Xueru Xiong, Qian Sun, Xiangting Lai, Lili Cai, Yunhua Chen, Lin Wang, Yong‐Guang Jia   +7 more
wiley   +1 more source

Accelerating 2D NMR relaxation dispersion experiments using iterated maps. [PDF]

J Biomol NMR, 2019
Rovny J, Blum RL, Loria JP, Barrett SE.
europepmc   +1 more source

Electron‐Phonon Interactions Facilitating Large Polaron‐Related Charge‐Carrier Dynamics for Efficient Perovskite Nanocrystal Solar Cells

Advanced Science, EarlyView.
We developed a custom‐synthesized ligand, 2‐thiophenepropenammonium iodide, to exchange the native ligands capped on inorganic perovskite nanocrystals (NCs), and identified that the significantly decreased strength of electron‐phonon interaction benefited the charge‐carrier dynamics in their assembled films.
Wei Guo, Jinfei Dai, Shuaiqi He, Lin Yang, Yanni He, Jianing Duan, Hanlin Cen, Xiaolong Yang, Fang Yuan, Jingrui Li, Zhaoxin Wu, Liberato Manna, Jun Xi   +12 more
wiley   +1 more source

Characterization of Internal Protein Dynamics and Conformational Entropy by NMR Relaxation. [PDF]

Methods Enzymol, 2019
Stetz MA, Caro JA, Kotaru S, Yao X, Marques BS, Valentine KG, Wand AJ.   +6 more
europepmc   +1 more source

Integrated Bulk–Surface Engineering Stabilizes MA‐Free Wide‐Bandgap Perovskites for Tandem Photovoltaics

Advanced Science, EarlyView.
High‐bromide wide‐bandgap perovskites suffer from defects and phase segregation, limiting tandem performance. We report a bulk–surface coupling effect to heal lattice/surface defects and suppress halide migration. As a result, the wide‐bandgap device achieves 23.71% efficiency, while monolithic Si‐based tandems reach 32.26%, exhibiting exceptional long‐
Yu Tong, Biao Li, Youming Zhu, Yehui Wen, Tianchi Zhang, Weihua Ning, Yong Wang, Xuegong Yu, Deren Yang   +8 more
wiley   +1 more source

Structural Basis of the Membrane Association by the Conserved RocS Membrane‐Targeting Sequence in Streptococcus

Advanced Science, EarlyView.
Chromosome segregation in Streptococcus pneumoniae depends on RocS, a bitopic protein whose membrane‐anchoring mechanisms were unclear. Using NMR and AFM, this study reveals that the widely conserved RocS anchor binds to membranes via a conserved kink‐helix motif which inserts into lipid nanodomains.
Ana Álvarez‐Mena, Estelle Morvan, Clara Lambert, Anagha Kallisseri Parambil, Martin Lefeuvre, Zeren Xu, Nadia El Mammeri, Florian Malard, Erick J. Dufourc, Cécile Feuillie, Christophe Grangeasse, Birgit Habenstein   +11 more
wiley   +1 more source

Record‐High Latent Heat, Ultra‐Fast Relaxation and Closed‐Loop Recycling Double‐Brush Polymer Networks for Self‐Adaptive Thermal Interface Management

Advanced Science, EarlyView.
By grafting dense long double‐brush chains, we synthesized bottlebrush networks with high theoretical enthalpy. Their low entanglement, combined with dynamic bonds, promotes crystalline domain reorganization and minimizes enthalpy loss, achieving a record enthalpy of 240.7 J·g−1.
Qiguang Liu, Yanyun Li, Zhenghao Wu, Junjie Cheng, Chang Jing, Jue Cheng, Jiahao Ma, Junying Zhang   +7 more
wiley   +1 more source

Rapid and Direct Detection of Methamphetamine in Biofluids using a MXene‐Enabled Electrochemical Sensor

Advanced Science, EarlyView.
A MXene‐enhanced electrochemical sensor enables the rapid and direct detection of methamphetamine. Molecular simulations reveal that specific MXene surface functional groups act as key signal amplifiers by facilitating interfacial interactions. The sensor demonstrates high sensitivity and robust performance in complex biological matrices.
Ri Wang, Xiaofei Deng, Bo Chen, Jienan Shen, Wei Xu, Yingjie Zhu, Yi Zhang, Hui Yang   +7 more
wiley   +1 more source