نتایج جستجو برای: fluorescent nanoparticles

تعداد نتایج: 192430  

Journal: :Organic & biomolecular chemistry 2009
Hsin-Hung Lin Sheng-Yuan Su Cheng-Chung Chang

We present a convenient method to prepare fluorophores 3- or 3,7-divinyl substituted 10H-phenothiazines and their protonation forms can aggregate to become fluorescent organic nanoparticles (FONs) with bright fluorescent spots in the lysosomes of cancer cells but not normal cells.

Journal: :Chemical communications 2015
D Ferraro Y Lin B Teste D Talbot L Malaquin S Descroix A Abou-Hassan

We present a microfluidic platform that allows undergoing different chemical operations in a nanoliter droplet starting from the colloidal suspension of magnetic iron oxide (γ-Fe2O3) nanoparticles "NPs" (ferrofluid). These operations include: mixing, flocculation, magnetic decantation, colloidal redispersion, washing, surface functionalization, heating and colloidal assembly. To prove the platf...

Journal: :Lab on a chip 2005
Kyu Sung Kim Je-Kyun Park

This paper describes a novel microfluidic immunoassay utilizing binding of superparamagnetic nanoparticles to beads and deflection of these beads in a magnetic field as the signal for measuring the presence of analyte. The superparamagnetic 50 nm nanoparticles and fluorescent 1 microm polystyrene beads are immobilized with specific antibodies. When target analytes react with the polystyrene bea...

Journal: :Chemical communications 2011
Jinyoung Jeong Eunju Yun Yohan Choi Hye-youn Jung Sang J Chung Nam Woong Song Bong Hyun Chung

Photochromic compound-conjugated fluorescent fullerene-silica nanoparticles prepared by the reverse-microemulsion method was utilized for photoswitchable cellular imaging by repeatable irradiation of ultraviolet and visible light.

Journal: :Chemical communications 2009
Paul Free Christopher P Shaw Raphaël Lévy

Fluorescence unquenching measurements of protease-dependent release of fluorescent biomolecules from peptide-capped gold nanoparticles reveal the effect of the monolayer composition on enzyme kinetics.

Journal: :Journal of Nanomedicine & Nanotechnology 2018

Journal: :Chemical communications 2012
Weiwei Guo Jipei Yuan Erkang Wang

A unique heterophase ligand exchange induced etching process was used to transform gold nanoparticles into organic-soluble fluorescent gold clusters which were assigned to Au(8) by optical spectroscopy and MALDI-TOF mass spectrometry. Both the annihilation electrochemiluminescence of fluorescent Au(8) clusters in organic solution and the coreactant electrochemiluminescence of Au(8) cluster film...

Journal: :Experimental hematology 2008
Eun Wha Choi Il Seob Shin Young Jin Chae Hye Cheong Koo Jong Hwa Lee Tae Ho Chung Yong Ho Park Dae Yong Kim Cheol Yong Hwang Chang Woo Lee Hwa Young Youn

OBJECTIVE We sought to test two concepts: that nanoparticles can be used for in vivo gene delivery and that canine granulocyte-macrophage colony-stimulating factor (GM-CSF)/nanoparticles can have possibility to be used to treat transient (acute) canine leukopenia. MATERIALS AND METHODS We have generated a novel fluorescent-silica nanoparticle binding of canine GM-CSF gene; canine GM-CSF gene ...

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