نتایج جستجو برای: surface functionalized

تعداد نتایج: 652478  

Forouzan Zonouzi Goldasteh Zarei

This work reports, immobilization the Cobaloxime [Co (DH) Cl;DH,dimethylglyoximato)] onto the MCM- .The surface of MCM- was initially functionalized with -aminopropyltrimethoxysilane and -pyridine. For the electrostatic immobilization this was reacted with Cobaloxime and immobilization was achieved by an electrostatic interaction between the Co Cobaloxime and the N of the pyridine and NH amine....

Journal: :Nanotechnology 2010
Ning Gao Hongjun Wang Eui-Hyeok Yang

In this paper, a cell separation technique has been explored using antibody-functionalized Ni nanowires. An antibody (anti-CD31) against mouse endothelial cells (MS1) was conjugated to the Ni nanowire surface through self-assembled monolayers (SAMs) and chemical covalent reactions. The measured cytotoxicity was negligible on the CD-31 antibody-functionalized nanowires by the tetrazolium salt (M...

Journal: :Physical review letters 2009
Troels Markussen Antti-Pekka Jauho Mads Brandbyge

Based on atomistic calculations of electron and phonon transport, we propose to use surface-decorated silicon nanowires for thermoelectric applications. Two examples of surface decorations are studied to illustrate the underlying ideas: nanotrees and alkyl functionalized silicon nanowires. For both systems we find (i) that the phonon conductance is significantly reduced compared to the electron...

Journal: :The journal of physical chemistry. B 2005
Shing-Jong Huang Chin-Hui Huang Wen-Hua Chen Xianping Sun Xizhi Zeng Huang-Kuei Lee John A Ripmeester Chuan-Yuan Mou Shang-Bin Liu

Variable-temperature hyperpolarized (HP) 129Xe NMR spectroscopy has been employed to characterize surface properties of mesoporous MCM-41 modified by silylation treatment. The characteristic chemical shifts responsible for Xe-surface interactions exhibit strong correlations with both the surface coverage and chain length of the grafted alkylsilanes. Consequently, the deshielding medium contribu...

Journal: :Chemical communications 2011
Zhi-You Zhou Xiongwu Kang Yang Song Shaowei Chen

Monodisperse butylphenyl-functionalized palladium (Pd-BP, dia. 2.24 nm) nanoparticles were synthesized through co-reduction of butylphenyldiazonium and H(2)PdCl(4) by NaBH(4). Because of this unique surface functionalization and a high specific electrochemical surface area (122 m(2) g(-1)), the Pd-BP nanoparticles exhibited a mass activity ∼4.5 times that of commercial Pd black for HCOOH electr...

Journal: :Nanoscale 2015
Tapas K Purkait Anindya K Swarnakar Glenda B De Los Reyes Frank A Hegmann Eric Rivard Jonathan G C Veinot

One-pot syntheses of surface functionalized germanium nanocrystals (GeNCs) based upon traditional hot injection and microwave-assisted heating of a Ge(II) dihydride single source precursor have been developed. The reported procedures offer in situ hydrogermylation-based covalent attachment of alkene/alkyne derived surface moieties that give access to hydrophobic or hydrophilic GeNCs.

This investigation indicates the ability to selectively graft glycidyl methacrylate (GMA) only from the external surface of regenerated cellulose (RC) ultrafiltration (UF) membranes using activator generated electron transfer (AGET) atom transfer radical polymerization (ATRP). This controlled polymerization resulted in epoxy functionalized polymer brush ends. Further reaction of the terminal ep...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
Yan Wu Sambit Misra M Basar Karacor Shaurya Prakash Mark A Shannon

The dynamic response of an oscillating microcantilever with a gold-coated tip interacting with dissimilar functionalized silica surfaces was studied in electrolyte solutions with pH ranging from 4 to 9. Silica surfaces were chemically modified, yielding dissimilar surfaces with -Br, -NH(2), and -CH(3) functional group terminations. The relative hydrophobicity of the surfaces was characterized b...

Journal: :Chemical communications 2007
Stefan Ehrler Uwe Pieles Amina Wirth-Heller Patrick Shahgaldian

Prolyl-bearing amphiphilic resorcinarenes, e.g. tetrakis(N-methylprolyl)tetraundecylcalix[4]resorcinarene, self-assemble as stable solid lipid nanoparticles; these fully characterized systems could be further functionalized at their surface with proteins, and interact with specific antibodies bound on a sensor surface.

Journal: :Chemical communications 2014
Bor-Ran Li Mo-Yuan Shen Hsiao-Hua Yu Yaw-Kuen Li

A new approach to immobilize zwitterionic molecules rapidly and highly efficiently on a gold surface applies aniline-based electrodeposition. The zwitterion-functionalized antifouling surface enables a decrease of the adsorption of non-specific proteins by 95% from fetal bovine serum (FBS, 10%).

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