Probing Hydroxyl Radicals and Their Imaging in Living Cells by Use of FAM–DNA–Au Nanoparticles

2008 ◽  
Vol 14 (2) ◽  
pp. 522-528 ◽  
Author(s):  
Bo Tang ◽  
Ning Zhang ◽  
Zhenzhen Chen ◽  
Kehua Xu ◽  
Linhai Zhuo ◽  
...  
Keyword(s):  
Hydroxyl Radicals ◽  
Au Nanoparticles ◽  
Living Cells

A ratiometric fluorescent probe for the detection of endogenous hydroxyl radicals in living cells

Talanta ◽  
2019 ◽  
Vol 196 ◽  
pp. 317-324 ◽  
Author(s):  
Biliu Wu ◽  
Jiajun Yang ◽  
Jianjian Zhang ◽  
Zheng Li ◽  
Hua Li ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Hydroxyl Radicals ◽  
Living Cells ◽  
Ratiometric Fluorescent Probe

A ratiometric fluorescent probe for the detection of hydroxyl radicals in living cells

2014 ◽  
Vol 50 (37) ◽  
pp. 4843-4845 ◽  
Author(s):  
Luyan Meng ◽  
Yongquan Wu ◽  
Tao Yi
Keyword(s):  
Fluorescent Probe ◽  
Hydroxyl Radicals ◽  
Living Cells ◽  
Selective Detection ◽  
Ratiometric Fluorescent Probe

A naphthalimide–naphthyridine derivative is reported for the selective detection of hydroxyl radicals in both solution and living cells.

A sensitive fluorescent sensor for the detection of endogenous hydroxyl radicals in living cells and bacteria and direct imaging with respect to its ecotoxicity in living zebra fish

2016 ◽  
Vol 52 (25) ◽  
pp. 4636-4639 ◽  
Author(s):  
Fei Liu ◽  
Juan Du ◽  
Da Song ◽  
Meiying Xu ◽  
Guoping Sun
Keyword(s):  
Hydroxyl Radicals ◽  
Fluorescent Sensor ◽  
Living Cells ◽  
High Potential ◽  
Zebra Fish ◽  
Direct Imaging ◽  
Excellent Selectivity

MPT-Cy2exhibited excellent selectivity and sensitivity toward ˙OH over other ROS and showed a high potential for the imaging of endogenous ˙OH in living cells and various types of bacteria.

Turn-On Luminescent Probes for the Real-Time Monitoring of Endogenous Hydroxyl Radicals in Living Cells

2016 ◽  
Vol 128 (13) ◽  
pp. 4308-4313 ◽  
Author(s):  
Wenjuan Zhou ◽  
Yuqing Cao ◽  
Dandan Sui ◽  
Chao Lu
Keyword(s):  
Real Time ◽  
Hydroxyl Radicals ◽  
Living Cells ◽  
Real Time Monitoring ◽  
The Real ◽  
Luminescent Probes ◽  
Turn On

scholarly journals Temperature monitoring during light-induced release of cargo using polymer capsules modified with gold nanoparticles and nanodiamonds

2021 ◽  
Vol 2015 (1) ◽  
pp. 012045
Author(s):  
E N Gerasimova ◽  
V V Yaroshenko ◽  
P M Talianov ◽  
O O Peltek ◽  
L V Mikhailova ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Gold Nanoparticles ◽  
Side Effects ◽  
Temperature Measurement ◽  
Real Time ◽  
Au Nanoparticles ◽  
Living Cells ◽  
Temperature Monitoring ◽  
Biological Objects ◽  
Multifunctional Platform

Abstract Application of different light-sensitive drug delivery carriers is limited due to a risk of overheating of living cells. Therefore, a real-time temperature monitoring within biological objects that controls the photothermal release of different cargos from light-sensitive carriers is highly demanded. In this work, we develop a multifunctional platform comprised of polymer microcapsules modified with nitrogen vacancies (NV) centers as nanothermometers and gold (Au) nanoparticles (NPs) as heating elements for the realization of laser-induced cargo release with a simultaneous temperature measurement inside cells. Such platform allows to prevent unwanted side effects related with the overheating of living cells and tissues.

scholarly journals Enhancement of Visible-Light Photocatalytic Activity of Mesoporous Au-TiO2Nanocomposites by Surface Plasmon Resonance

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Minghua Zhou ◽  
Jun Zhang ◽  
Bei Cheng ◽  
Huogen Yu
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Surface Plasmon Resonance ◽  
Visible Light ◽  
Hydroxyl Radicals ◽  
Rhodamine B ◽  
Au Nanoparticles ◽  
Photocatalytic Decolorization ◽  
Visible Light Photocatalytic

Mesoporous Au-TiO2nanocomposite plasmonic photocatalyst with visible-light photoactivity was prepared by a simple spray hydrolytic method using photoreduction technique at90∘C. The prepared samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2adsorption-desorption isotherms. The formation of hydroxyl radicals (•OH) on the surface of visible-light illuminated Au-TiO2nanocomposites was detected by the luminescence technique using terephthalic acid as probe molecules. The photocatalytic activity was evaluated by photocatalytic decolorization of Rhodamine-B (RhB) aqueous solution under visible-light irradiation (λ >  420 nm). The results revealed that the TiO2could be crystallizedviaspray hydrolysis method, and the photoreduction technique was facilitated to prepare Au nanoparticles in the mesoporous TiO2at90∘C. The light absorption, the formation rate of hydroxyl radicals, and photocatalytic decolorization of Rhodamine-B aqueous solution were significantly enhanced by those embedded Au nanoparticles in the Au-TiO2nanocomposites. The prepared Au-TiO2nanocomposites exhibit a highly visible-light photocatalytic activity for photocatalytic degradation of RhB in water, and their photocatalytic activity is higher than that of the pristine TiO2nanoparticles due to the surface plasmon resonance.

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