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Showing 25 to 36 of 62 entries
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Flavonoids, the Family of Plant-derived Antioxidants making inroads into Novel Therapeutic Design against IR-induced Oxidative Stress in Parkinson's Disease.

Current neuropharmacology

Behl T, Kaur G, Sehgal A, Zengin G, Singh S, Ahmadi A, Bungau S.
PMID: 34030619
Curr Neuropharmacol. 2021 May 24; doi: 10.2174/1570159X19666210524152817. Epub 2021 May 24.

BACKGROUND: Ionizing radiation from telluric sources is unceasingly an unprotected pitfall to humans. Thus, the foremost contributors to human exposure are global and medical radiations. Various pieces of evidences assembled during preceding years reveal the pertinent role of ionizing...

Study of oxidative stress and enzymatic antioxidants in normal pregnancy.

Indian journal of clinical biochemistry : IJCB

Patil SB, Kodliwadmath MV, Kodliwadmath SM.
PMID: 23105668
Indian J Clin Biochem. 2007 Mar;22(1):135-7. doi: 10.1007/BF02912897.

Pregnancy is a physiological state accompanied by a high-energy demand and an increased oxygen requirement. Augmented levels of oxidative stress would be expected because of the increased intake and utilization of oxygen. Evidence of increased oxidative stress in normal...

Hydrogen Storage and Selective, Reversible O2 Adsorption in a Metal-Organic Framework with Open Chromium(II) Sites.

Angewandte Chemie (International ed. in English)

Bloch ED, Queen WL, Hudson MR, Mason JA, Xiao DJ, Murray LJ, Flacau R, Brown CM, Long JR.
PMID: 27249784
Angew Chem Int Ed Engl. 2016 Jul 18;55(30):8605-9. doi: 10.1002/anie.201602950. Epub 2016 Jun 01.

A chromium(II)-based metal-organic framework Cr3 [(Cr4 Cl)3 (BTT)8 ]2 (Cr-BTT; BTT(3-) =1,3,5-benzenetristetrazolate), featuring coordinatively unsaturated, redox-active Cr(2+) cation sites, was synthesized and investigated for potential applications in H2 storage and O2 production. Low-pressure H2 adsorption and neutron powder diffraction...

Oxygen-Rich Lithium Oxide Phases Formed at High Pressure for Potential Lithium-Air Battery Electrode.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

Yang W, Kim DY, Yang L, Li N, Tang L, Amine K, Mao HK.
PMID: 28932656
Adv Sci (Weinh). 2017 May 19;4(9):1600453. doi: 10.1002/advs.201600453. eCollection 2017 Sep.

The lithium-air battery has great potential of achieving specific energy density comparable to that of gasoline. Several lithium oxide phases involved in the charge-discharge process greatly affect the overall performance of lithium-air batteries. One of the key issues is...

In situ generation of superoxide anion radical in aqueous medium under ambient conditions.

Chemphyschem : a European journal of chemical physics and physical chemistry

Stoin U, Shames AI, Malka I, Bar I, Sasson Y.
PMID: 24323856
Chemphyschem. 2013 Dec 16;14(18):4158-64. doi: 10.1002/cphc.201300707. Epub 2013 Nov 21.

In the recent decades superoxide [O(2-.) ] has become the subject of considerable interest. Nonetheless, generation of superoxide compounds is still a substantial challenge. The standard methods for synthesis of superoxide derivatives are either through the oxidation of molten...

Evaluating chemical bonding in dioxides for the development of metal-oxygen batteries: vibrational spectroscopic trends of dioxygenyls, dioxygen, superoxides and peroxides.

Physical chemistry chemical physics : PCCP

Radjenovic PM, Hardwick LJ.
PMID: 30620030
Phys Chem Chem Phys. 2019 Jan 17;21(3):1552-1563. doi: 10.1039/c8cp04652b.

Dioxides (dioxygenyl (O2+), dioxygen (O2), superoxide (O2˙-) and peroxide (O22-)) are of immense biological, chemical and environmental importance. The ability to accurately detect and measure the changing strength of their chemical bonding and coordination in situ or operando is...

Age-Related Modulations in Erythrocytes under Blood Bank Conditions.

Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie

Hsieh C, Prabhu NCS, Rajashekaraiah V.
PMID: 31700508
Transfus Med Hemother. 2019 Aug;46(4):257-266. doi: 10.1159/000501285. Epub 2019 Jul 02.

BACKGROUND: During storage of erythrocytes, storage lesions are formed that reduce the safety and efficacy of the stored blood. Thus, there is a need to understand the changes that occur during storage. Most studies have focused on storage of...

Potassium Doping Facilitated Formation of Tunable Superoxides in Li.

ACS applied materials & interfaces

Dai W, Cui X, Chi X, Zhou Y, Yang J, Lian X, Zhang Q, Dong W, Chen W.
PMID: 31960670
ACS Appl Mater Interfaces. 2020 Jan 29;12(4):4558-4564. doi: 10.1021/acsami.9b21554. Epub 2020 Jan 21.

Superoxide (O

SIRT1 Activation by Polydatin Alleviates Oxidative Damage and Elevates Mitochondrial Biogenesis in Experimental Diabetic Neuropathy.

Cellular and molecular neurobiology

Bheereddy P, Yerra VG, Kalvala AK, Sherkhane B, Kumar A.
PMID: 32683581
Cell Mol Neurobiol. 2021 Oct;41(7):1563-1577. doi: 10.1007/s10571-020-00923-1. Epub 2020 Jul 18.

Mitochondrial dysfunction has been implicated as a one of the major factors linked to the development of painful diabetic neuropathy (DN). Several studies have demonstrated that sirtuin (SIRT1) activation recuperates nerve function by activating mitochondrial biogenesis. Polydatin, a resveratrol...

Superoxide Decay Pathways in Oxygen Reduction Reaction on Carbon-Based Catalysts Evidenced by Theoretical Calculations.

ChemSusChem

Li Y, Qiao Z, Cao Y, Wang H, Liang H, Yu H, Peng F.
PMID: 30536883
ChemSusChem. 2019 Mar 21;12(6):1133-1138. doi: 10.1002/cssc.201802601. Epub 2019 Feb 11.

Superoxide decay behavior is evaluated by contrastive potential energy surface analyses from theoretical calculations. The presence of carbon surfaces enhances the superoxide decay through disproportionation instead of electroreduction, which is a non-electrochemical reaction that impedes the increase in energy...

Pathways to Triplet or Singlet Oxygen during the Dissociation of Alkali Metal Superoxides: Insights by Multireference Calculations of Molecular Model Systems.

Chemistry (Weinheim an der Bergstrasse, Germany)

Zaichenko A, Schröder D, Janek J, Mollenhauer D.
PMID: 31647142
Chemistry. 2020 Feb 21;26(11):2395-2404. doi: 10.1002/chem.201904110. Epub 2020 Jan 21.

Recent experimental investigations demonstrated the generation of singlet oxygen during charging at high potentials in lithium/oxygen batteries. To contribute to the understanding of the underlying chemical reactions a key step in the mechanism of the charging process, namely, the...

Possible surface reactions on Mars: implications for viking biology results.

Science (New York, N.Y.)

Ponnamperuma C, Shimoyama A, Yamada M, Hobo T, Pal R.
PMID: 17783243
Science. 1977 Jul 29;197(4302):455-7. doi: 10.1126/science.197.4302.455.

The results of two of the three biology experiments carried out on the Viking Mars landers have been simulated. The mixture of organic compounds labeled with carbon-14 used on Mars released carbon dioxide containing carbon-14 when reacted with a...

Showing 25 to 36 of 62 entries