نتایج جستجو برای: carbon dots

تعداد نتایج: 306919  

Journal: :Beilstein Journal of Nanotechnology 2020

Journal: :Applied sciences 2022

The carbon/TiO2 hybrid dots (C/TiO2-Dots) are structurally TiO2 nanoparticles (in the order of 25 nm in diameter from commercially available colloidal samples) surface-attached by nanoscale carbon domains with organic moieties, thus equivalent to hybrids individual each decorated many dots. These exposure visible light exhibit potent antibacterial properties, similar those found neat same activ...

Journal: :Chemical communications 2011
Gui-zheng Zou Guo-dong Liang Xiao-li Zhang

Anodic near-infrared electrochemiluminescence (ECL) from CdTe quantum dots was achieved at low potential on a glass carbon electrode and a strategy for greatly enhanced band-gap ECL was presented.

Journal: :Chemical communications 2014
Yuhui Wang Duyang Gao Pengfei Zhang Ping Gong Chi Chen Guanhui Gao Lintao Cai

A new FRET model using near-infrared quantum-dots (NIR-QDs) and oxidized carbon nanoparticles (OCNPs) as the energy donor and acceptor was constructed and designed for insulin detection in complex human plasma.

Journal: :Chemical communications 2013
Ming Xuan Gao Chun Fang Liu Zhu Lian Wu Qiao Ling Zeng Xiao Xi Yang Wen Bi Wu Yuan Fang Li Cheng Zhi Huang

Highly PL carbon quantum dots (CQDs) were successfully prepared from C60 by introducing CTAB and H2O2 in aqueous NaOH under hydrothermal conditions. The CQDs displayed a nanoparticle aggregation-induced emission enhancement (NP-AIEE).

Journal: :Chemical communications 2015
Dinggeng He Xiaoxiao Yang Xiaoxiao He Kemin Wang Xue Yang Xing He Zhen Zou

A sensitive turn-on fluorescent sensor based on single-layer MnO2 nanosheet-quenched fluorescent carbon quantum dots has been developed for rapid and selective sensing of glutathione in aqueous solutions, as well as in living cells.

2016
Hailong Dong Ana Kuzmanoski Tobias Wehner Klaus Müller-Buschbaum Claus Feldmann

Eu3+-modified carbon dots (C-dots), 3-5 nm in diameter, were prepared, functionalized, and stabilized via a one-pot polyol synthesis. The role of Eu2+/Eu3+, the influence of O₂ (oxidation) and H₂O (hydrolysis), as well as the impact of the heating procedure (conventional resistance heating and microwave (MW) heating) were explored. With the reducing conditions of the polyol at the elevated temp...

Journal: :The Analyst 2014
Xiaoyue Shan Lujing Chai Juanjuan Ma Zhaosheng Qian Jianrong Chen Hui Feng

Fluorescent B-doped carbon quantum dots (BCQDs) were prepared by a facile one-pot solvothermal route. The BCQDs can be used as a novel fluorescence sensing system for hydrogen peroxide and glucose detection.

Journal: :Physical review letters 2003
M R Buitelaar W Belzig T Nussbaumer B Babić C Bruder C Schönenberger

We report resonant multiple Andreev reflections in a multiwall carbon nanotube quantum dot coupled to superconducting leads. The position and magnitude of the subharmonic gap structure is found to depend strongly on the level positions of the single-electron states which are adjusted with a gate electrode. We discuss a theoretical model of the device and compare the calculated differential cond...

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