Effect of CeO2 nanoparticles on hydroxyl radicals in EPR studies of the photodegradation of methylene blue under influence of red light

被引：9

作者：

Pugachevskii, Maksim Aleksandrovich ^{[1
]}

Rasseko, Dmitrii Sergeevich ^{[1
]}

Stupin, Victor Aleksandrovich ^{[2
]}

Manturova, Natalia Evgenevna ^{[3
]}

Artyushkova, Elena Borisovna ^{[4
]}

Silina, Ekaterina Vladimirovna ^{[5
]}

机构：

[1] Southwest State Univ, Reg Ctr Nanotechnol, Kursk 305040, Russia

[2] Pirogov Russian Natl Res Med Univ, Dept Hosp Surg, Moscow 117997, Russia

[3] Pirogov Russian Natl Res Med Univ, Dept Plast & Reconstruct Surg Cosmetol & Cell Tech, Moscow 117997, Russia

[4] Kursk State Med Univ, Res Inst Expt Med, Kursk 305040, Russia

[5] IM Sechenov First Moscow State Med Univ, Sechenov Univ, Dept Human Pathol, Moscow 119991, Russia

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2024年 / 404卷

基金：

俄罗斯科学基金会;

关键词：

Cerium dioxide; Antioxidant activity; EPR spectroscopy; DMPO; Reactive oxygen species; CERIUM OXIDE NANOPARTICLES; 5,5-DIMETHYL-1-PYRROLINE N-OXIDE; BIOMEDICAL APPLICATIONS; SPIN-TRAP; VITAMIN-E; OXYGEN; OXIDATION; DMPO; ACID; PH;

D O I：

10.1016/j.molliq.2024.124946

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The antioxidant properties of cerium dioxide nanoparticles synthesized by the hydrothermal method are studied both by optical photometry and by EPR spectroscopy. It was found that with increasing intensity of irradiation of methylene blue with red light, the antioxidant activity of CeO 2 nanoparticles improve. The greatest antioxidant activity is achieved at a concentration of CeO 2 particles in solution from 5 mM to 10 mM. Increasing a concentration of CeO 2 nanoparticles above 20 mM leads to deterioration in their antioxidant properties. It has been shown that in an alkaline medium the antioxidant activity of nanoparticles increases significantly, but with a decrease in pH to 3, CeO 2 nanoparticles exhibit weak pro-oxidant properties due to more active generation of O 2 center dot radicals.

引用

页数：9

共 55 条

[1] Optical Properties of Cerium Oxide (CeO2) Nanoparticles Synthesized by Hydroxide Mediated Method [J].

Ali, Mawlood Maajal ;

Mahdi, Hadeel Salih ;

Parveen, Azra ;

Azam, Ameer .

2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2017), 2018, 1953

[2]

Aneggi E, 2020, METAL OXIDES, P45, DOI 10.1016/B978-0-12-815661-2.00003-7

[3] EPR Spin-Trapping Study of Free Radical Intermediates in Polyalphaolefin Base Oil Autoxidation [J].

Babic, Nikola ;

Pondaven, Simon ;

Vezin, Herve .

POLYMER DEGRADATION AND STABILITY, 2021, 192

[4] Electron paramagnetic study on radical scavenging properties of ceria nanoparticles [J].

Babu, Suresh ;

Velez, Anthony ;

Wozniak, Krzysztof ;

Szydlowska, Jadwiga ;

Seal, Sudipta .

CHEMICAL PHYSICS LETTERS, 2007, 442 (4-6) :405-408

[5]

Bai XY, 2017, PHYS PLASMAS, V24, DOI [10.1063/1.4986008, 10.1063/1.4982212]

[6] THE ROLE OF ASCORBATE IN ANTIOXIDANT PROTECTION OF BIOMEMBRANES - INTERACTION WITH VITAMIN-E AND COENZYME-Q [J].

BEYER, RE .

JOURNAL OF BIOENERGETICS AND BIOMEMBRANES, 1994, 26 (04) :349-358

[7] Oxidation of the spin trap 5,5-dimethyl-1-pyrroline N-oxide by singlet oxygen in aqueous solution [J].

Bilski, P ;

Reszka, K ;

Bilska, M ;

Chignell, CF .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (06) :1330-1338

[8] Cerium Oxide Nanoparticles Protect against Oxidant Injury and Interfere with Oxidative Mediated Kinase Signaling in Human-Derived Hepatocytes [J].

Carvajal, Silvia ;

Perramon, Meritxell ;

Casals, Gregori ;

Oro, Denise ;

Ribera, Jordi ;

Morales-Ruiz, Manuel ;

Casals, Eudald ;

Casado, Pedro ;

Melgar-Lesmes, Pedro ;

Fernandez-Varo, Guillermo ;

Cutillas, Pedro ;

Puntes, Victor ;

Jimenez, Wladimiro .

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2019, 20 (23)

[9] Visible light induced photocatalytic degradation of methylene blue dye by using Mg doped Co-Zn nanoferrites [J].

Chahar, Deepika ;

Kumar, Dinesh ;

Thakur, Preeti ;

Thakur, Atul .

MATERIALS RESEARCH BULLETIN, 2023, 162

[10] Enhanced hydroxyl radical production by dihydroxybenzene-driven Fenton reactions:: implications for wood biodegradation [J].

Contreras, David ;

Rodriguez, Jaime ;

Freer, Juanita ;

Schwederski, Brigitte ;

Kaim, Wolfgang .

JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY, 2007, 12 (07) :1055-1061

← 1 2 3 4 5 6 →