Topic
Surface modification
About: Surface modification is a research topic. Over the lifetime, 35544 publications have been published within this topic receiving 859567 citations.
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TL;DR: Simultaneous functionalization with both ligands significantly enhanced nanoparticle accumulation in tumors in vivo, and resulted in greatly improved efficacy of paclitaxel-loaded nanoparticles in a mouse xenograft tumor model.
217 citations
TL;DR: The work from this laboratory on the stabilization of gold nanoparticles using amino acid as well as using amino acids as reducing agents to obtain stable aqueous solutions ofgold nanoparticles of variable size is reviewed.
217 citations
TL;DR: In this article, a LaF 3 nanoparticle surface coated by organic compounds containing S and P was synthesized by the chemical surface modification method using a transmission electron microscope (TEM) and electron diffraction (ED), their tribological behaviors were evaluated on a four-ball machine.
217 citations
TL;DR: In this article, a mixed matrix PES nanofiltration membrane was prepared by embedding various concentrations of the modified Fe 3 O 4 based nanoparticles, which was characterized in terms of morphology and performance including investigation of SEM and AFM microphotographs, water contact angle, mean pore size and porosity measurements and determination of pure water flux as well as copper ion removal.
217 citations
TL;DR: In this article, a novel approach to produce luminescent silicon nanoparticles (Si-NPs) is developed, where single crystalline SiNPs are synthesized by pyrolysis of silane (SiH 4 ) in a microwave plasma reactor at very high production rates (0.1-10 gh -1 ).
Abstract: Aiming for a more practical route to highly stable visible photoluminescence (PL) from silicon, a novel approach to produce luminescent silicon nanoparticles (Si-NPs) is developed. Single crystalline Si-NPs are synthesized by pyrolysis of silane (SiH 4 ) in a microwave plasma reactor at very high production rates (0.1-10 gh -1 ). The emission wavelength of the Si-NPs is controlled by etching them in a mixture of hydrofluoric acid and nitric acid. Emission across the entire visible spectrum is obtained by varying the etching time. It is observed that the air oxidation of the etched Si-NPs profoundly affects their optical properties, and causes their emission to blue-shift and diminish in intensity with time. Modification of the silicon surface by UV-induced hydrosilylation also causes a shift in the spectrum. The nature of the shift (red/blue) is dependent on the emission wavelength of the etched Si-NPs. In addition, the amount of shift depends on the type of organic ligand on the silicon surface and the UV exposure time. The surface modification of Si-NPs with different alkenes results in highly stable PL and allows their dispersion in a variety of organic solvents. This method of producing macroscopic quantities of Si-NPs with very high PL stability opens new avenues to applications of silicon quantum dots in optoelectronic and biological fields, and paves the way towards their commercialization.
217 citations