نتایج جستجو برای: surface functionalization

تعداد نتایج: 642239  

1996
Kevin F. Kelly Naomi J. Halas Peter Nordlander Richard E. Smalley

This dissertation analyzes the feasibility and advantages of molecular functionalization of scanning tunneling microscope (STM) probes with buckminsterfullerenes. The C60 molecules are adsorbed onto the tunneling region of a STM tip by rastering the tip in a thin lm of C60 vacuum deposited on graphite. The individual tip-adsorbed molecules are subsequently imaged in situ by scanning the fullere...

2017
Sandra M.A. Cruz Helena I.S. Nogueira Paula A.A.P. Marques

Electrospun nanofibres are highly attractive products taking advantage of their remarkable specific surface area, high porosity and good transport properties that are ideal requirements for efficient molecule detection. In this work, fibres of polyacrylonitrile (PAN) were first prepared by electrospinning. These fibres were then coated with silver nanoparticles or silver/graphene nanocomposites...

2017
Andrii V. Uklein Volodymyr V. Multian Bogdan V. Oliinyk Volodymyr V. Doroshchuk Sergei A. Alekseev Volodymyr V. Lysenko Mykhailo S. Brodyn Volodymyr Ya. Gayvoronsky

The porous silicon (PS) surface modification diagnostics due to functionalization and water adsorption/desorption processes were provided by the self-action effects of picosecond range pulsed laser radiation at 1064 nm. It was shown that the PS surface functionalization-oxide removal, alkylation, and oxidation-resulted in a refractive nonlinear optical (NLO) response sign turn to self-focusing ...

2015
Yongchun Fu Songjie Chen Akiyoshi Kuzume Alexander Rudnev Cancan Huang Veerabhadrarao Kaliginedi Masoud Baghernejad Wenjing Hong Thomas Wandlowski Silvio Decurtins Shi-Xia Liu

Interface engineering to attain a uniform and compact self-assembled monolayer at atomically flat surfaces plays a crucial role in the bottom-up fabrication of organic molecular devices. Here we report a promising and operationally simple approach for modification/functionalization not only at ultraflat single-crystal metal surfaces, M(111) (M=Au, Pt, Pd, Rh and Ir) but also at the highly orien...

Journal: :Lab on a chip 2010
Mehmet C Tarhan Ryuji Yokokawa Céline Bottier Dominique Collard Hiroyuki Fujita

An alternative method of micro/nano-transport has been achieved by using motor proteins. Microtubules on a kinesin-coated surface have potential to act as a nano-transport system. When microtubules are used as carriers, either cargo or cargo linkers are attached on the microtubule surface. Such cargo attachments can significantly affect kinesin motion. To deal with the difficulty caused by mole...

2015
Lin Zhong Chokkalingam Anand Kripal Singh Lakhi Geoffrey Lawrence Ajayan Vinu

Recently, mesoporous carbon nitride (MCN) has aroused extensive interest for its potential applications in organocatalysis, photo- and electrochemistry and CO2 capture. However, further surface functionalization of MCN for advanced nanomaterials and catalysis still remains very challenging. Here we show that acidic carboxyl groups can be smoothly introduced onto the surface of well-ordered MCN ...

2013
Eloise Van Hooijdonk Carla Bittencourt Rony Snyders Jean-François Colomer

This review focuses and summarizes recent studies on the functionalization of carbon nanotubes oriented perpendicularly to their substrate, so-called vertically aligned carbon nanotubes (VA-CNTs). The intrinsic properties of individual nanotubes make the VA-CNTs ideal candidates for integration in a wide range of devices, and many potential applications have been envisaged. These applications c...

2017
Jorge Escorihuela Han Zuilhof

Surface functionalization of inorganic semiconductor substrates, particularly silicon, has focused attention toward many technologically important applications, involving photovoltaic energy, biosensing and catalysis. For such modification processes, oxide-free (H-terminated) silicon surfaces are highly required, and different chemical approaches have been described in the past decades. However...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Che-Ming J Hu Li Zhang Santosh Aryal Connie Cheung Ronnie H Fang Liangfang Zhang

Efforts to extend nanoparticle residence time in vivo have inspired many strategies in particle surface modifications to bypass macrophage uptake and systemic clearance. Here we report a top-down biomimetic approach in particle functionalization by coating biodegradable polymeric nanoparticles with natural erythrocyte membranes, including both membrane lipids and associated membrane proteins fo...

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