Results 131 to 140 of about 2,490,208 (254)

Study of oral cancer based on integrating plasma, urine and saliva metabolic profiles by Gas Chromatography-Mass Spectrometry and Liquid Chromatography-Mass Spectrometry

open access: yes, 2011
Study of oral cancer based on integrating plasma, urine and saliva metabolic profiles by Gas Chromatography-Mass Spectrometry and Liquid Chromatography-Mass ...
石先哲   +4 more
core  

Electrocatalytic C─C Bond Formation Via Cyanide Interception of CO2 Reduction Intermediates

open access: yesAdvanced Science, EarlyView.
ABSTRACT Electrochemical CO2 reduction offers a sustainable route to convert greenhouse gas into high‐value‐added chemicals, yet product distributions remain largely limited to simple C1‐C3 molecules. Here, we report a new reaction in which CO2 reduction intermediates undergo direct C‐C coupling with an external carbon nucleophile under electrochemical
Gongbo Liu   +10 more
wiley   +1 more source

Integrated O2 and H2 Gas Therapy via Microneedle‐Assisted Photocatalytic Water Splitting for Accelerating Diabetic Full‐Thickness Skin Wound Healing

open access: yesAdvanced Science, EarlyView.
A concept of integrated O2 and H2 gas therapy is achieved using a gas‐producing material. PMP nanoparticles, fabricated from platinum, MIL‐101(Fe)‐NH2, and phosphotungstic acid, are integrated into bilayer gelatin methacryloyl microneedles for transdermal delivery. These microneedles enable integrated O2 and H2 gas therapy and promote wound healing via
Zesheng Chen   +13 more
wiley   +1 more source

Chromatography : fundamentals and applications of chromatography and related differential migration methods.

open access: yes, 1992
Includes bibliographical references and indexes.Print version record.Front Cover; Chromatography, 5th edition: Applications; Copyright Page; Contents; List of Authors; List of Abbreviations; List of Italic Symbols; List of Greek Symbols; Chapter 12 ...
Heftmann, Erich.
core  

Constrained Forest Methane Sink by Thermal Adaptation of Soil Methanotrophs

open access: yesAdvanced Science, EarlyView.
Climate warming can stimulate methanotroph‐mediated CH4 oxidation in forest soils, thereby mitigating the increase in atmospheric CH4 concentrations. By integrating evidence from a macro‐climatic thermal gradient and a 70‐day incubation experiment, this study demonstrates that microbial methanotrophs can adapt to long‐term temperature changes at the ...
Baizhi Jiang   +5 more
wiley   +1 more source

Strong Metal‐Support Interaction Driven Janus Reconstruction in PtRu Alloys for Low‐Temperature Hydrogen Storage

open access: yesAdvanced Science, EarlyView.
Strong metal‐support interactions (SMSI) drive the spontaneous segregation of RuPt alloy into Janus nanoparticles on CeO2, spatially partitioning Pt‐rich domains for H2 dissociation and Ru‐rich domains for toluene adsorption. This Janus nanocatalysts yield a turnover frequency of 10 906 h−1 for toluene hydrogenation at 50 °C, which is 6.7 times that of
Xingyu Zhang   +5 more
wiley   +1 more source

NbN Broadband Plasmonic Absorbers for Efficient Hot‐Carrier Injection Toward Improved Solar‐to‐Hydrogen Conversion

open access: yesAdvanced Science, EarlyView.
Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Tzu‐Yu Peng   +11 more
wiley   +1 more source

Oral Nanomicelle‐Mediated Sequential Butyrate Production in the Intestine for Ulcerative Colitis and Immunosuppression Treatment

open access: yesAdvanced Science, EarlyView.
After oral administration, inodorous GLU‐BA self‐assembles into nanomicelles in aqueous environments to resist premature gastric adsorption. Upon reaching the intestine, endogenous esterases rapidly cleave the built‐in ester bonds in these nanomicelles to release BA and GLU, with GLU further metabolized by gut microbiota to gradually generate BA ...
Feifei Xin   +9 more
wiley   +1 more source

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