Results 91 to 100 of about 114,879 (289)

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

open access: yesAdvanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova   +21 more
wiley   +1 more source

Remarkable active-site dependent H2O promoting effect in CO oxidation

open access: yesNature Communications, 2019
The issue that whether single-atom sites possess similar catalytic properties to the interfacial sites of nanocatalysts remains unresolved. Here, the authors demonstrate a large H2O promotional effect on CO oxidation over Au single-atom sites due to ...
Shu Zhao   +18 more
doaj   +1 more source

Hydrogen migration at restructuring palladium-silver oxide boundaries dramatically enhances reduction rate of silver oxide. [PDF]

open access: yes, 2020
Heterogeneous catalysts are complex materials with multiple interfaces. A critical proposition in exploiting bifunctionality in alloy catalysts is to achieve surface migration across interfaces separating functionally dissimilar regions.
Egle, Tobias   +9 more
core  

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

Catalysis by gold nanoparticles: carbon-carbon coupling reactions

open access: yesNanotechnology Reviews, 2013
Gold nanoparticles have been demonstrated to be efficient catalysts for a wide range of reactions in the past decades, such as oxidation and hydrogenation.
Li Gao, Jin Rongchao
doaj   +1 more source

Through Diamond Robust Surface Enhanced Raman Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
Thin film diamond growth offers a unique opportunity for Surface Enhanced Raman Spectroscopy (SERS); the encapsulation of plasmonic nanostructures within a transparent, chemically stable, and physically robust coating. The diamond acts as both a window and protective layer, enabling illumination of the plasmonic nanostructures through the diamond ...
Kieran N. Twaddle   +4 more
wiley   +1 more source

Truly-Biocompatible Gold Catalysis Enables Vivo-Orthogonal Intra-CNS Release of Anxiolytics. [PDF]

open access: yesAngew Chem Int Ed Engl, 2022
Ortega-Liebana MC   +7 more
europepmc   +2 more sources

When gold can do what iodine cannot do: A critical comparison

open access: yesBeilstein Journal of Organic Chemistry, 2011
Gold catalysis has emerged as one of the most dynamic fields in organic synthesis. Only recently, more and more domino processes, for which gold pre-catalysts were found to be outstandingly effective, were paralleled by employing iodine electrophiles in ...
Sara Hummel, Stefan F. Kirsch
doaj   +1 more source

A Facile and Novel Synthetic Route to Gold Nanoparticles Using Cefazolin as a Template for a Sensor

open access: yesInternational Journal of Electrochemical Science, 2013
Electrochemical synthesis of gold nanoparticles on the surface of pyrolytic graphite electrode and preparation of GNPs using cefazolin as a template in aqueous solution was proposed.
Yan Zhang, Shaohong Wei, Songtao Chen
doaj   +1 more source

Laser Engineering of HfN‐Based Nanoparticles for Safe NIR‐I Photothermal and X‐ray Enhancing Cancer Therapies

open access: yesAdvanced Functional Materials, EarlyView.
In this study, we produced HfN‐based nanoparticles via femtosecond laser ablation in acetone. The nanoparticles exhibit a red‐shifted plasmonic resonance in the NIR‐I window, colloidal stability after coating with polyethyleneglycol, and excellent biocompatibility. The photothermal and X‐ray sensitization therapeutic effects were demonstrated for tumor
Julia S. Babkova   +15 more
wiley   +1 more source

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