نتایج جستجو برای: functionalized nanoparticles

تعداد نتایج: 124700  

Journal: :Journal of the American Chemical Society 2009
Adrienne M Carver Mrinmoy De Halil Bayraktar Subinoy Rana Vincent M Rotello Michael J Knapp

Surface-functionalized nanoparticles enhance the rate of electron transfer (ET) between Cyt c(Fe(2+)) and Co(phen)(3)(3+) by a factor of 10(5) through simultaneous electrostatic binding of an ET donor and acceptor.

Journal: :Chemical communications 2012
Min Sik Eom Woojeong Jang Yoon Seo Lee Gildon Choi Yong-Uk Kwon Min Su Han

In this study, the use of bi-ligand co-functionalized gold nanoparticles in a highly selective and sensitive colorimetric probe for Ca(2+) ions is demonstrated and this probe also determined the concentrations of Ca(2+) ions in serum samples.

Journal: :Chemical communications 2013
Huaming Wang Dingzhong Wang Zhou Peng Wei Tang Na Li Feng Liu

A facile approach was developed to assemble DNA-functionalized gold nanoparticles on the electrospun nanofibers. This novel nanocomposite was successfully applied to constructing a highly sensitive and selective fluorescent sensor for nucleic acids.

Journal: :Chemical communications 2010
Xiaorong Yang Juan Xu Xuemei Tang Huixiang Liu Danbi Tian

A novel amplification strategy based on DNAzyme functionalized gold nanoparticles was employed to enhance the sensitivity of an electrochemical sensor for detection of Pb2+. The detection limit is 0.028 nM, which is much lower than for other electrochemical DNAzyme sensors.

Journal: :Chemical communications 2012
Yunhua Yang Jianghu Cui Mingtao Zheng Chaofan Hu Shaozao Tan Yong Xiao Qu Yang Yingliang Liu

Highly amino-functionalized fluorescent carbon nanoparticles (CNPs) were fabricated by hydrothermal carbonization of chitosan at a mild temperature. They were applied to bioimaging of human lung adenocarcinoma A549 cells, showing low cytotoxicity and excellent biocompatibility.

Journal: :Chemical communications 2009
Sai Bi Hong Zhou Shusheng Zhang

A signal amplification strategy based on bio-bar-code functionalized magnetic nanoparticles as labels holds promise to improve the sensitivity and detection limit of the detection of DNA hybridization and single-nucleotide polymorphisms by flow injection chemiluminescence assays.

Journal: :Chemical communications 2014
Meicheng Wen Kohsuke Mori Takashi Kamegawa Hiromi Yamashita

The incorporation of Pt nanoparticles into a highly stable and porous amine-functionalized MIL-101(Cr) was performed for construction of a visible light driven H2 evolution system with high activity and strong stability.

Journal: :Chemical communications 2008
Chung-Shu Wu Chia-Tien Wu Yuh-Shyong Yang Fu-Hsiang Ko

Kinetic and thermodynamic studies reveal that the property of significantly enhanced catalytic activity with colloidal stability is attributed to an efficacious means of tuning enzyme-substrate association by varying with the rate constants in the presence of functionalized gold nanoparticles.

Journal: :The Analyst 2010
Hongyu Zhou Xi Li Andrew Lemoff Bin Zhang Bing Yan

A novel approach to identify structures and quantify the absolute amounts of individual ligands on multi-functionalized gold nanoparticles by an FTIR and HPLC/MS/UV/CLND method has been developed.

Journal: :Dalton transactions 2015
Fabio Carniato Mónica Muñoz-Úbeda Lorenzo Tei Mauro Botta

Organo-modified mesoporous silica nanoparticles, loaded with ibuprofen into the pores and functionalized on the external surface with a stable Gd(iii)-DOTA-monoamide chelate, were prepared and explored as potential theranostic probes.

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