نتایج جستجو برای: surface functionalization

تعداد نتایج: 642239  

2015
Lukas Zeininger Martin Klaumünzer Wolfgang Peukert Andreas Hirsch

A new prototype of a Hamilton receptor suitable for the functionalization of inorganic nanoparticles was synthesized and characterized. The hydrogen bonding receptor was coupled to a catechol moiety, which served as anchor group for the functionalization of metal oxides, in particular zinc oxide. Synthesized zinc oxide nanorods [ZnO] were used for surface functionalization. The wet-chemical fun...

Journal: :Scanning 2012
David Richards Philip Luce Dmitry Zemlyanov Albena Ivanisevic

Gallium phosphide (GaP) surfaces were functionalized with two different molecules that contain an azide moiety at their terminus. Compound 4-azidophenacyl bromide (4AB) is an aryl azide with a bromine group at its opposite terminus that provides easy identification of the molecule's presence on the surface with x-ray photoelectron spectroscopy (XPS). O-(2-aminoethyl)-O'-(2-azidoethyl)pentaethyl...

2015
He Cheng Han Zheng Jia Xin Wu Wei Xu Lihan Zhou Kam Chew Leong Eugene Fitzgerald Raj Rajagopalan Heng Phon Too Wee Kiong Choi

We demonstrated the surface functionalization of a highly three-dimensional, superhydrophilic wicking substrate using light to immobilize functional biomolecules for sensor or microarray applications. We showed here that the three-dimensional substrate was compatible with photo-attachment and the performance of functionalization was greatly improved due to both increased surface capacity and re...

Journal: :Journal of computational chemistry 2006
Hugo R. R. Santos Gregori Ujaque Maria João Ramos José A. N. F. Gomes

In this work, we have tested 30 different adsorption situations in several coverage scenarios for the 1-amino-3-cyclopentene (ACP) molecule on the Si(100) surface. We have used a five-spot testing zone inserted in the high-level part of a quantum-mechanical/quantum-mechanical study performed in a big cluster. By defining several different scenarios, each one with a typical adsorption energy, we...

2018
Muhammad Kashif Riaz Muhammad Adil Riaz Xue Zhang Congcong Lin Ka Hong Wong Xiaoyu Chen Ge Zhang Aiping Lu Zhijun Yang

Surface functionalization of liposomes can play a key role in overcoming the current limitations of nanocarriers to treat solid tumors, i.e., biological barriers and physiological factors. The phospholipid vesicles (liposomes) containing anticancer agents produce fewer side effects than non-liposomal anticancer formulations, and can effectively target the solid tumors. This article reviews info...

2016
Valentina Spampinato Maria Antonietta Parracino Rita La Spina Francois Rossi Giacomo Ceccone

In this work, Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS), Principal Component Analysis (PCA) and X-ray Photoelectron Spectroscopy (XPS) have been used to characterize the surface chemistry of gold substrates before and after functionalization with thiol-modified glucose self-assembled monolayers and subsequent biochemical specific recognition of maltose binding protein (MBP). The...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2008
Céline Dablemont Philippe Lang Claire Mangeney Jean-Yves Piquemal Valeri Petkov Frédéric Herbst Guillaume Viau

Platinum nanoparticles with a mean size of 1.7 nm were synthesized by reduction in sodium acetate solution in 1,2-ethanediol. The particles were then functionalized with dodecylamine, dodecanethiol, and omega-mercapto-undecanoic acid (MUDA). Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) showed important variations of the particle surface state with fu...

2016
Ludwig Klermund Sarah T. Poschenrieder Kathrin Castiglione

BACKGROUND Hollow vesicles formed from block copolymers, so-called polymersomes, have been extensively studied in the last decade for their various applications in drug delivery, in diagnostics and as nanoreactors. The immobilization of proteins on the polymersomes' surface can aid in cell targeting, lead to functional biosensors or add an additional reaction space for multistep syntheses. In a...

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