Co3O4-cored carbon dots for chemiluminescence analysis of intracellular hydrogen peroxide

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 39480-39483 ◽  
Author(s):  
Junyu Zhou ◽  
Jiangjiang Gu ◽  
Chunxiu Tian ◽  
Dechen Jiang ◽  
Yun Chen ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Dots ◽  
Luminescence Analysis ◽  
Chemiluminescence Analysis ◽  
Neutral Ph ◽  
Intracellular Hydrogen Peroxide

Co3O4 cored carbon dots were prepared to induce chemiluminescence from carbon dots in the presence of hydrogen peroxide at neutral pH, and were loaded into cells for the luminescence analysis of intracellular hydrogen peroxide.

Fast one-step synthesis of N-doped carbon dots by pyrolyzing ethanolamine

2014 ◽  
Vol 2 (36) ◽  
pp. 7477-7481 ◽  
Author(s):  
Xinwei Dong ◽  
Yanjie Su ◽  
Huijuan Geng ◽  
Zhongli Li ◽  
Chao Yang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Dots ◽  
High Yield ◽  
One Step ◽  
Doped Carbon Dots

N-doped CDs can be obtained directly with high yield by pyrolyzing ethanolamine in air within just 7 minutes with the assistance of hydrogen peroxide.

scholarly journals Electrochemical Visualization of Intracellular Hydrogen Peroxide at Single Cells

2016 ◽  
Vol 88 (4) ◽  
pp. 2006-2009 ◽  
Author(s):  
Ruiqin He ◽  
Huifen Tang ◽  
Dechen Jiang ◽  
Hong-yuan Chen
Keyword(s):  
Hydrogen Peroxide ◽  
Single Cells ◽  
Intracellular Hydrogen Peroxide

scholarly journals Roles of intracellular hydrogen peroxide accumulation in abscisic acid signaling in Arabidopsis guard cells

2011 ◽  
Vol 168 (16) ◽  
pp. 1919-1926 ◽  
Author(s):  
Rayhanur Jannat ◽  
Misugi Uraji ◽  
Miho Morofuji ◽  
Mohammad Muzahidul Islam ◽  
Rachel E. Bloom ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Abscisic Acid ◽  
Guard Cells ◽  
Abscisic Acid Signaling ◽  
Hydrogen Peroxide Accumulation ◽  
Intracellular Hydrogen Peroxide

pH-Switchable Fluorescent Probe for Spatially-Confined Visualization of Intracellular Hydrogen Peroxide

2016 ◽  
Vol 88 (11) ◽  
pp. 5865-5870 ◽  
Author(s):  
Jun Liu ◽  
Jing Ren ◽  
Xiaojia Bao ◽  
Wei Gao ◽  
Chuanliu Wu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Fluorescent Probe ◽  
Intracellular Hydrogen Peroxide

scholarly journals Tumor-acidity activated surface charge conversion of two-photon fluorescent nanoprobe for enhanced cellular uptake and targeted imaging of intracellular hydrogen peroxide

2019 ◽  
Vol 10 (40) ◽  
pp. 9351-9357 ◽  
Author(s):  
Lanlan Chen ◽  
Shuai Xu ◽  
Wei Li ◽  
Tianbing Ren ◽  
Lin Yuan ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Surface Charge ◽  
Cellular Uptake ◽  
Targeted Imaging ◽  
Two Photon ◽  
Fluorescent Nanoprobe ◽  
Tumor Acidity ◽  
Ph Dependent ◽  
Intracellular Hydrogen Peroxide ◽  
Activated Surface

A smart, two-photon fluorescent GC–NABP nanoprobe with pH-dependent surface charge conversion was developed for tumor-targeted visualization of H2O2.

Hydroxyl radical formation from bacteria-assisted Fenton chemistry at neutral pH under environmentally relevant conditions

2016 ◽  
Vol 13 (4) ◽  
pp. 757 ◽  
Author(s):  
Jarod N. Grossman ◽  
Tara F. Kahan
Keyword(s):  
Hydrogen Peroxide ◽  
Hydroxyl Radical ◽  
Natural Waters ◽  
Shewanella Oneidensis ◽  
Radical Formation ◽  
Production Rates ◽  
Fenton Chemistry ◽  
Iron Reducing Bacteria ◽  
Neutral Ph ◽  
Reducing Bacteria

Environmental contextReactions in natural waters such as lakes and streams are thought to be extremely slow in the absence of sunlight (e.g. at night). We demonstrate that in the presence of iron, hydrogen peroxide and certain bacteria (all of which are common in natural waters), certain reactions may occur surprisingly quickly. These findings will help us predict the fate of many compounds, including pollutants, in natural waters at night. AbstractDark Fenton chemistry is an important source of hydroxyl radicals (OH•) in natural waters in the absence of sunlight. Hydroxyl radical production by this process is very slow in many bodies of water, owing to slow reduction and low solubility of FeIII at neutral and near-neutral pH. We have investigated the effects of the iron-reducing bacteria Shewanella oneidensis (SO) on OH• production rates from Fenton chemistry at environmentally relevant hydrogen peroxide (H2O2) and iron concentrations at neutral pH. In the presence of 2.0 × 10–4M H2O2, OH• production rates increased from 1.3 × 10–10 to 2.0 × 10–10Ms–1 in the presence of 7.0 × 106cellsmL–1 SO when iron (at a concentration of 100μM) was in the form of FeII, and from 3.6 × 10–11 to 2.2 × 10–10Ms–1 when iron was in the form of FeIII. This represents rate increases of factors of 1.5 and 6 respectively. We measured OH• production rates at a range of H2O2 concentrations and SO cell densities. Production rates depended linearly on both variables. We also demonstrate that bacteria-assisted Fenton chemistry can result in rapid degradation of aromatic pollutants such as anthracene. Our results suggest that iron-reducing bacteria such as SO may be important contributors to radical formation in dark natural waters.

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