Seed-mediated growth approach for rapid synthesis of high-performance red-emitting CdTe quantum dots in aqueous phase and their application in detection of highly reactive oxygen species

2016 ◽  
Vol 299 ◽  
pp. 201-208 ◽  
Author(s):  
Yali Xu ◽  
Junjie Hao ◽  
Xiaoying Niu ◽  
Shengda Qi ◽  
Hongli Chen ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Quantum Dots ◽  
Aqueous Phase ◽  
High Performance ◽  
Reactive Oxygen ◽  
Cdte Quantum Dots ◽  
Oxygen Species ◽  
Rapid Synthesis ◽  
Seed Mediated ◽  
Growth Approach

Rodlike Particles of Polydopamine-CdTe Quantum Dots: An Actuator As a Photothermal Agent and Reactive Oxygen Species-Generating Nanoplatform for Cancer Therapy

2021 ◽  
Vol 13 (36) ◽  
pp. 42357-42369
Author(s):  
Greter A. Ortega ◽  
S. Del Sol-Fernández ◽  
Yadileiny Portilla ◽  
Enrique Cedeño ◽  
Edilso Reguera ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Quantum Dots ◽  
Cancer Therapy ◽  
Reactive Oxygen ◽  
Cdte Quantum Dots ◽  
Oxygen Species ◽  
Rodlike Particles

Nanoantioxidant/Antioxidant therapy in 2019-nCoV: A new approach to reactive oxygen species mechanisms

2021 ◽  
Vol 16 ◽  
Author(s):  
Ali Fathijouzdani ◽  
Rezvan Heidarimoghadam ◽  
Maryam Hazhirkamal ◽  
Akram Ranjbar
Keyword(s):  
Reactive Oxygen Species ◽  
High Performance ◽  
Membrane Lipids ◽  
Reactive Oxygen ◽  
Modern Medicine ◽  
Multiple Organ ◽  
Antioxidant Therapy ◽  
Oxygen Species ◽  
Medicinal Uses ◽  
Organ Failures

: The COVID-19 pandemic has caused serious concerns for people around the world. The COVID-19 is associated with respiratory failure, generation of reactive oxygen species (ROS), and the lack of antioxidants among patients. Specified ROS levels have an essential role as an adjuster of immunological responses and virus cleaners. Still, excessive ROS will oxidize membrane lipids and cellular proteins and quickly destroy virus-infected cells. It can also adversely damage normal cells in the lungs and even the heart, resulting in multiple organ failures. Given the above, a highly potent antioxidant therapy can be offered to reduce cardiac loss due to COVID-19. In modern medicine, nanoparticles containing antioxidants can be used as a high-performance therapy in reducing oxidative stress in the prevention and treatment of infectious diseases. It can provide a free and interactive tool to determine whether antioxidants & nanoantioxidants can be administered for COVID-19. More research and studies are needed to investigate and make definitive opinions about their medicinal uses.

scholarly journals 8.2.1　Generation of Reactive Oxygen Species in Aqueous Phase by Carbon-Ion Beam

RADIOISOTOPES ◽  
2019 ◽  
Vol 68 (10) ◽  
pp. 681-691
Author(s):  
Ken-ichiro Matsumoto ◽  
Minako Nyui ◽  
Megumi Ueno ◽  
Yukihiro Ogawa ◽  
Ikuo Nakanishi
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Phase ◽  
Ion Beam ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Carbon Ion ◽  
Carbon Ion Beam

THE ROLES OF PHOTOLUMINESCENT QUANTUM DOTS IN GENERATION OR DETECTION OF REACTIVE OXYGEN SPECIES: CULPRITS OR DETECTIVES?

COSMOS ◽  
2010 ◽  
Vol 06 (02) ◽  
pp. 149-158
Author(s):  
SUHUA WANG ◽  
DEJIAN HUANG
Keyword(s):  
Reactive Oxygen Species ◽  
Quantum Dots ◽  
Organic Dyes ◽  
Resonance Energy Transfer ◽  
Reactive Oxygen ◽  
Resonance Energy ◽  
Oxygen Species ◽  
Positive Side ◽  
Biological Importance ◽  
Organic Sensitizers

In this review, we systematically analyzed the complicated interrelationship between photoluminescent quantum dots (QDs) and reactive oxygen species of biological importance. QDs, when photoexcited, generate reactive oxygen species (ROS), which are partially blamed for the cytotoxicity of QDs. On the positive side, the ability of generating ROS by QDs are exploited in photodynamic therapy using QDs alone or in combination with QD-surface bound organic sensitizers via resonance energy transfer from QDs to the organic dyes. Lastly, depending on the chemical composition and the functionalization of the QDs, ROS are known to quench or switch-on the QD photoluminescence. The selectivity and sensitivity toward specific ROS can be achieved through judicious chemical modification of QD surface coating layers by taking into account the reactivity difference among different ROS. The flexible QD surface functionalization opens up the unprecedented possibility of designer-made nanoprobes for sensing and quantifying ROS of biological importance.

Clean photoinduced generation of free reactive oxygen species by silica films embedded with CdTe–MTA quantum dots

RSC Advances ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 8563-8571 ◽  
Author(s):  
Gustavo C. S. de Souza ◽  
David S. M. Ribeiro ◽  
S. Sofia M. Rodrigues ◽  
Ana Paula S. Paim ◽  
André F. Lavorante ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Quantum Dots ◽  
Sol Gel ◽  
Reactive Oxygen ◽  
Analytical Application ◽  
Oxygen Species ◽  
Silica Films ◽  
Environment Friendly ◽  
Gel Technique

QDs immobilized into silica films were obtained by sol–gel technique using TMOS. These nanomaterials kept their native PL and the ability to generate ROS opening perspectives for the development of more environment friendly analytical application.

Coenzyme Q Functionalized CdTe/ZnS Quantum Dots for Reactive Oxygen Species (ROS) Imaging

2011 ◽  
Vol 17 (19) ◽  
pp. 5262-5271 ◽  
Author(s):  
Li‐Xia Qin ◽  
Wei Ma ◽  
Da‐Wei Li ◽  
Yang Li ◽  
Xiaoyuan Chen ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Quantum Dots ◽  
Coenzyme Q ◽  
Reactive Oxygen ◽  
Oxygen Species

Graphene Oxide Quantum Dots-Induced Mineralization via the Reactive Oxygen Species-Dependent Autophagy Pathway in Dental Pulp Stem Cells

2020 ◽  
Vol 16 (6) ◽  
pp. 965-974
Author(s):  
Xincong Li ◽  
Hanxiao Liu ◽  
Yijun Yu ◽  
Lan Ma ◽  
Chao Liu ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Stem Cells ◽  
Quantum Dots ◽  
Graphene Oxide ◽  
Reactive Oxygen ◽  
Stem Cell Differentiation ◽  
Oxygen Species ◽  
Odontoblastic Differentiation ◽  
Autophagic Activity ◽  
Graphene Oxide Quantum Dots

As an important recycling and degradation system, autophagy is considered to be critical in regulating stem cell differentiation. It has been shown that graphene oxide quantum dots (GOQDs) are a robust biological labelling tool for stem cells with little cytotoxicity. In this study, we explored the role of autophagy in regulating the impact of GOQDs on the odontoblastic differentiation of DPSCs during autophagy. Western blotting and immunofluorescence staining were used to evaluate the autophagic activity of DPSCs. Quantitative PCR, alizarin red S staining, and alkaline phosphatase staining were used to examine DPSC odontoblastic differentiation. The impacts of ROS scavengers on autophagy induction and reactive oxygen species (ROS) levels were also measured. Lentiviral vectors carrying Beclin1 siRNA sequences, as well as autophagy inhibitors (3-MA and bafilomycin A1), were used to inhibit autophagy. Initial exposure to GOQDs increased autophagic activity and enhanced DPSC mineralization. Autophagy inhibition suppressed GOQD-induced odontoblastic differentiation. Moreover, GOQD treatment induced autophagy in a ROS-dependent manner. GOQDs promoted differentiation, which could be modulated via ROS-induced autophagy.

Role of reactive oxygen species in the dechlorination of trichloroethene and 1.1.1-trichloroethane in aqueous phase in UV/TiO 2 systems

2015 ◽  
Vol 123 ◽  
pp. 367-375 ◽  
Author(s):  
Landry Biyoghe Bi Ndong ◽  
Xiaogang Gu ◽  
Shuguang Lu ◽  
Murielle Primaelle Ibondou ◽  
Zhaofu Qiu ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Phase ◽  
Reactive Oxygen ◽  
Oxygen Species
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