نتایج جستجو برای: surface functionalization

تعداد نتایج: 642239  

Journal: :Chemical Society reviews 2015
Wei Zhou Lin Guo

The structure and the composition are two key factors that influence the physical, chemical, and other properties of materials. Correspondingly, structural design and functionalization with inorganic or organic materials provide efficient routes to enhancing some properties. Herein, iron triad nanomaterials, with a wide range of applications in energy, environment and other fields, were chosen ...

2016
Silvia Villa Paola Riani Federico Locardi Fabio Canepa

In this paper the results concerning the synthesis of magnetite (Fe₃O₄) nanoparticles (NPs), their functionalization using silane derivatives, such as (3-Aminopropyl)triethoxysilane (APTES) and (3-mercaptopropyl)trimethoxysilane (MPTMS), and their exhaustive morphological and physical characterization by field emission scanning electron microscopy (FE-SEM) with energy dispersion X-ray spectrome...

2016
Pa Fan Hsiao Sydney Peng Ting-Cheng Tang Shuian-Yin Lin Hsieh-Chih Tsai

In this study, we investigated the effect of (ethylene glycol) (PEG) and PEG-oleylamine (OAm) functionalization on the skin permeation property of gold nanoparticles (GNS) in vivo. Chemisorption of polymers onto GNS was verified by a red shift in the ultraviolet-visible spectrum as well as by a change in the nanoparticle surface charge. The physicochemical properties of pristine and functionali...

Journal: :Chemical communications 2008
Tendai Gadzikwa Guang Lu Charlotte L Stern Scott R Wilson Joseph T Hupp Sonbinh T Nguyen

A Zn-cornered, mixed-ligand, metal-organic framework (MOF) bearing TMS-protected acetylenes has been constructed and its surface decorated with organic molecules via'click chemistry', in a demonstration of selective post-synthesis functionalization.

Journal: :Chemical communications 2008
Xichen Cai Kelechi C Anyaogu Douglas C Neckers

A facile method for the functionalization of multiwall carbon nanotubes (MWCNT) by photopolymerization of 5-mercapto-2,2'-bithiophene modified metal (Au or Ag) nanoparticles on the surface of the MWCNT is developed.

2012
Sandhya Vardharajula Sk Z Ali Pooja M Tiwari Erdal Eroğlu Komal Vig Vida A Dennis Shree R Singh

Carbon nanotubes (CNTs) are emerging as novel nanomaterials for various biomedical applications. CNTs can be used to deliver a variety of therapeutic agents, including biomolecules, to the target disease sites. In addition, their unparalleled optical and electrical properties make them excellent candidates for bioimaging and other biomedical applications. However, the high cytotoxicity of CNTs ...

2017
Rukmani Thiruppathi Sachin Mishra Mathangi Ganapathy Parasuraman Padmanabhan Balázs Gulyás

Functionalization enhances the properties and characteristics of nanoparticles through surface modification, and enables them to play a major role in the field of medicine. In molecular imaging, quality functional images are required with proper differentiation which can be seen with high contrast to obtain viable information. This review article discusses how functionalization enhances molecul...

Journal: :Physical chemistry chemical physics : PCCP 2009
Vincenzo Amendola Moreno Meneghetti

In the past years, laser ablation synthesis in solution (LASiS) emerged as a reliable alternative to traditional chemical reduction methods for obtaining noble metal nanoparticles (NMNp). LASiS is a "green" technique for the synthesis of stable NMNp in water or in organic solvents, which does not need stabilizing molecules or other chemicals. The so obtained NMNp are highly available for furthe...

Journal: :Journal of the American Chemical Society 2008
Stefan J Pastine David Okawa Brian Kessler Marco Rolandi Mark Llorente Alex Zettl Jean M J Fréchet

A facile patterning method for the functionalization of vertically aligned carbon nanotubes is described. Modification of the surface of nanotube forests with hydrophilic, hydrophobic, or polymerizable small molecules was achieved via UV-triggered attachment of perfluoroarylazides. Multiple functionalizations of the tube surface can be achieved. Macro- and micropatterning of forest substrates w...

Journal: :Science and technology of advanced materials 2010
Zhi-Cai Xing Yongmin Chang Inn-Kyu Kang

Various inorganic nanoparticles have been used for drug delivery, magnetic resonance and fluorescence imaging, and cell targeting owing to their unique properties, such as large surface area and efficient contrasting effect. In this review, we focus on the surface functionalization of inorganic nanoparticles via immobilization of biomolecules and the corresponding surface interactions with bioc...

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