نتایج جستجو برای: freestanding nano

تعداد نتایج: 52348  

Journal: :Nature communications 2014
Haiou Zhu Chong Xiao Hao Cheng Fabian Grote Xiaodong Zhang Tao Yao Zhou Li Chengming Wang Shiqiang Wei Yong Lei Yi Xie

Superlattices have attracted great interest because of their tailorable electronic properties at the interface. However, the lack of an efficient and low-cost synthetic method represents a huge challenge to implement superlattices into practical applications. Herein, we report a space-confined nanoreactor strategy to synthesize flexible freestanding graphene-based superlattice nanosheets, which...

Journal: :Small 2009
Xing Yi Ling In Yee Phang Holger Schönherr David N Reinhoudt G Julius Vancso Jurriaan Huskens

Freestanding particle bridges with controlled composition and macroscopic robustness are demonstrated by the use of supramolecular nanoparticle assembly. Self-assembly of nanoparticles, templating, and supramolecular glue infiltration are combined to form stable and ordered three-dimensional polystyrene particle composites on a polydimethylsiloxane stamp. Freestanding hybrid polystyrene nanopar...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Prasad V Ganesan Steven G Boxer

Freestanding phospholipid bilayers have been assembled spanning shallow, micrometer-sized wells etched into a Si wafer substrate so that the bilayers are near (within hundreds of nanometers) but not in contact with the wafer surface. The proximity of the bilayers to the highly reflective Si/SiO(2) interface allows them to be probed by using fluorescence-interference techniques. These interferom...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Sean A Stauth Babak A Parviz

We demonstrate the use of self-assembly for the integration of freestanding micrometer-scale components, including single-crystal, silicon field-effect transistors (FETs) and diffusion resistors, onto flexible plastic substrates. Preferential self-assembly of multiple microcomponent types onto a common platform is achieved through complementary shape recognition and aided by capillary, fluidic,...

2011
Yongjin Wang Tong Wu Yoshiaki Kanamori Kazuhiro Hane

We report here the fabrication of freestanding HfO2 grating by combining fast atom beam etching (FAB) of HfO2 film with dry etching of silicon substrate. HfO2 film is deposited onto silicon substrate by electron beam evaporator. The grating patterns are then defined by electron beam lithography and transferred to HfO2 film by FAB etching. The silicon substrate beneath the HfO2 grating region is...

Journal: :Materials advances 2023

This review summarizes and discusses the representative fabrication methods related CDI performance metrics for fabricating freestanding/binder-free electrodes. The remaining challenges future outlooks are also discussed emphasized.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده شیمی 1393

ترکیب نانومتخلخل sba-15 دوپه شده با pd (pd-sba-15) به روش مستقیم سنتز شد. pd-sba-15 سنتزی توسط روش های طیف بینی پراش اشعه x (xrd)، میکروسکوپی الکترون روبشی (sem)، طیف بینی پراکنش انرژی (eds) و تکنیک bet مورد مطالعه قرار گرفت. ایزوترم واجذب گاز نیتروژن، اندازه تخلخل pd-sba-15 را کمتر از nm10 نشان داد. همچنین وجود pd توسط طیف بینی پراکنش انرژی تأیید گردید. به منظور مطالعه خواص الکتروکاتالیتیکیpd-...

Journal: :Materials advances 2022

Selenization of predeposited Pt on an rGO foil results in a freestanding electrocatalyst for the HER, achieving low overpotential 95 mV at ?10 mA cm ?2 .

Journal: :Pediatrics 2015
Adam L Hersh Stephen A De Lurgio Cary Thurm Brian R Lee Scott J Weissman Joshua D Courter Thomas V Brogan Samir S Shah Matthew P Kronman Jeffrey S Gerber Jason G Newland

BACKGROUND AND OBJECTIVE Single-center evaluations of pediatric antimicrobial stewardship programs (ASPs) suggest that ASPs are effective in reducing and improving antibiotic prescribing, but studies are limited. Our objective was to compare antibiotic prescribing rates in a group of pediatric hospitals with formalized ASPs (ASP+) to a group of concurrent control hospitals without formalized st...

Journal: :Soft Matter 2021

Reversible MgCl2-induced blunt-end polymerization of membrane-bound straight DNA origami monomers into filaments leads to protruding deformations on freestanding lipid membranes.

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