Results 81 to 90 of about 536,946 (291)

Research Progress of Free Radical Chemistry-Tandem Mass Spectrometry for Fine Structure Analysis of Lipids [PDF]

open access: yesZhipu Xuebao
As one of the six major nutrients, lipids play important roles in various biological processes, including cell membrane construction, signal transduction, and energy metabolism.
JIAN Rui-jun, XIA Yu
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Rejuvenating liquid crystal elastomers for self-growth

open access: yesNature Communications
To date, only one polymer can self-grow to an extended length beyond its original size at room temperature without external stimuli or energy input.
Hongtu Xu   +8 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Robust liquid crystal semi-interpenetrating polymer network with superior energy-dissipation performance

open access: yesNature Communications
Liquid crystal networks (LCN) have attracted surging interest as extraordinary energy-dissipation materials owning to their unique dissipation mechanism based on the re-orientation of mesogens.
Zhijun Yang   +8 more
doaj   +1 more source

Crystal structure of 5,17-bis(N-tert-butylhydroxyamine)-25,26,27,28- tetrapropoxycalix[4]arene, C48H66N2O6

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2006
C48H66N2O6, monoclinic, P121/c1 (no. 14), a = 14.636(2) Å, b = 16.807(2) Å, c = 19.131(2) Å, β = 102.981(1)°, V = 4585.8 Å3, Z = 4, Rgt(F) = 0.070, wRref(F2) = 0.160, T = 295 K.
Hu X.-J.   +6 more
doaj   +1 more source

One-Step Facile Synthesis of Aptamer-Modified Graphene Oxide for Highly Specific Enrichment of Human A-Thrombin in Plasma

open access: yesSensors, 2017
The enrichment of low-abundance proteins in complex biological samples plays an important role in clinical diagnostics and biomedical research. This work reports a novel one-step method for the synthesis of aptamer-modified graphene oxide (GO/Apt ...
Yuan Xu   +3 more
doaj   +1 more source

Influence of the hyporheic zone on the phosphorus dynamics of a large gravel-bed river, Garonne River, France [PDF]

open access: yes, 2009
Phosphorus (P) concentrations in sediments and in surface and interstitial water from three gravel bars in a large river (Garonne River, southern France) were measured daily, downstream of a wastewater treatment plant for a city of 740 000 inhabitants ...
Simeoni-Sauvage, Sabine   +10 more
core   +1 more source

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu   +14 more
wiley   +1 more source

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