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Showing 13 to 24 of 62 entries
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Constructing ultrathin film with "memory" photocatalytic activity from monolayered tungstate nanodots.

Chemical communications (Cambridge, England)

Xing Z, Zeng X, Deletic A, McCarthy D, Wang G, Zhang X.
PMID: 27044422
Chem Commun (Camb). 2016 May 19;52(43):6985-8. doi: 10.1039/c6cc00102e.

An ultrathin film of monolayered tungstate nanodots was successfully fabricated via a layer-by-layer self-assembly method, which shows a "memory" photocatalytic activity. Photoinduced electrons are quickly stored in the ultrathin film upon irradiation due to the reduction of W(6+) to...

Antiradical and antidiabetic properties of standardized extract of Sunderban mangrove Rhizophora mucronata.

Pharmacognosy magazine

Sur TK, Hazra AK, Bhattacharyya D, Hazra A.
PMID: 25829780
Pharmacogn Mag. 2015 Apr-Jun;11(42):389-94. doi: 10.4103/0973-1296.153094.

BACKGROUND: Mangroves have the ability to grow where no other vascular plants survive. Rhizophora mucronata is a true mangrove and traditionally used to treat diabetes and its allied complications.OBJECTIVES: In the present study, we standardized the 80% methanolic standardized...

Niacin metabolism and Parkinson's disease.

Environmental health and preventive medicine

Fukushima T.
PMID: 21432157
Environ Health Prev Med. 2005 Jan;10(1):3-8. doi: 10.1265/ehpm.10.3.

Epidemiological surveys suggest an important role for niacin in the causes of Parkinson's disease, in that niacin deficiency, the nutritional condition that causes pellagra, appears to protect against Parkinson's disease. Absorbed niacin is used in the synthesis of nicotinamide...

An evaluation of antioxidant, anti-inflammatory, and antinociceptive activities of essential oil from Curcuma longa. L.

Indian journal of pharmacology

Liju VB, Jeena K, Kuttan R.
PMID: 22021994
Indian J Pharmacol. 2011 Sep;43(5):526-31. doi: 10.4103/0253-7613.84961.

OBJECTIVES: This study was aimed to evaluate the chemical composition, antioxidant potential in vitro and in vivo, anti-inflammatory, and antinociceptive activity of turmeric oil.MATERIALS AND METHODS: Chemical analysis of turmeric oil was done by gas chromatography/mass spectrometry. Antioxidant activities...

Manganese, iron, cobalt, and nickel oxo-, peroxo-, and superoxoclusters: a density functional theory study.

Chemphyschem : a European journal of chemical physics and physical chemistry

Uzunova EL, St Nikolov G, Mikosch H.
PMID: 15038279
Chemphyschem. 2004 Feb 20;5(2):192-201. doi: 10.1002/cphc.200300895.

The 3d-transition-metal dioxo-, peroxo-, and superoxoclusters with the general composition MO2, M(O2), and MOO (M = Mn, Fe, Co, and Ni) were studied by DFT by the B1LYP functional. The dioxides in their ground states represent the global minima...

Molecular hydrogen protects chondrocytes from oxidative stress and indirectly alters gene expressions through reducing peroxynitrite derived from nitric oxide.

Medical gas research

Hanaoka T, Kamimura N, Yokota T, Takai S, Ohta S.
PMID: 22146365
Med Gas Res. 2011 Aug 04;1(1):18. doi: 10.1186/2045-9912-1-18.

BACKGROUND: Molecular hydrogen (H2) functions as an extensive protector against oxidative stress, inflammation and allergic reaction in various biological models and clinical tests; however, its essential mechanisms remain unknown. H2 directly reacts with the strong reactive nitrogen species peroxynitrite...

Nanoscale stabilization of sodium oxides: implications for Na-O2 batteries.

Nano letters

Kang S, Mo Y, Ong SP, Ceder G.
PMID: 24417743
Nano Lett. 2014 Feb 12;14(2):1016-20. doi: 10.1021/nl404557w. Epub 2014 Jan 14.

The thermodynamic stability of materials can depend on particle size due to the competition between surface and bulk energy. In this Letter, we show that, while sodium peroxide (Na2O2) is the stable bulk phase of Na in an oxygen...

Solvent-Mediated Control of the Electrochemical Discharge Products of Non-Aqueous Sodium-Oxygen Electrochemistry.

Angewandte Chemie (International ed. in English)

Aldous IM, Hardwick LJ.
PMID: 27240015
Angew Chem Int Ed Engl. 2016 Jul 11;55(29):8254-7. doi: 10.1002/anie.201601615. Epub 2016 May 30.

The reduction of dioxygen in the presence of sodium cations can be tuned to give either sodium superoxide or sodium peroxide discharge products at the electrode surface. Control of the mechanistic direction of these processes may enhance the ability...

Dissociation of diglycolamide complexes of Ln3+ (Ln = La-Lu) and An3+ (An = Pu, Am, Cm): redox chemistry of 4f and 5f elements in the gas phase parallels solution behavior.

Inorganic chemistry

Gong Y, Tian G, Rao L, Gibson JK.
PMID: 25372998
Inorg Chem. 2014 Nov 17;53(22):12135-40. doi: 10.1021/ic501985p. Epub 2014 Nov 05.

Tripositive lanthanide and actinide ions, Ln(3+) (Ln = La-Lu) and An(3+) (An = Pu, Am, Cm), were transferred from solution to gas by electrospray ionization as Ln(L)3(3+) and An(L)3(3+) complexes, where L = tetramethyl-3-oxa-glutaramide (TMOGA). The fragmentation chemistry of...

Peganum Harmala L. Extract Reduces Oxidative Stress and Improves Symptoms in 6-Hydroxydopamine-Induced Parkinson's Disease in Rats.

Iranian journal of pharmaceutical research : IJPR

Rezaei M, Nasri S, Roughani M, Niknami Z, Ziai SA.
PMID: 27610168
Iran J Pharm Res. 2016;15(1):275-81.

Parkinson's disease is one of the most common neurodegenerative disorders. There are many documents about the effects of oxidative stress in Parkinson's disease etiology. Angiotensin II activates NADPH dependent oxidases and causes superoxides formation. Peganum harmala L. extract, which...

Proton-coupled electron transfer reactivities of electronically divergent heme superoxide intermediates: a kinetic, thermodynamic, and theoretical study.

Chemical science

Mondal P, Ishigami I, Gérard EF, Lim C, Yeh SR, de Visser SP, Wijeratne GB.
PMID: 34257888
Chem Sci. 2021 May 27;12(25):8872-8883. doi: 10.1039/d1sc01952j. eCollection 2021 Jul 01.

Heme superoxides are one of the most versatile metallo-intermediates in biology, and they mediate a vast variety of oxidation and oxygenation reactions involving O

Catalytically active gold clusters with atomic precision for noninvasive early intervention of neurotrauma.

Journal of nanobiotechnology

Zhang Y, Sun S, Liu H, Ren Q, Hao W, Xin Q, Xu J, Wang H, Zhang XD.
PMID: 34645450
J Nanobiotechnology. 2021 Oct 13;19(1):319. doi: 10.1186/s12951-021-01071-4.

BACKGROUND: Neurotrauma is a worldwide public health problem which can be divided into primary and secondary damge. The primary damge is caused by external forces and triggers the overproduction of peroxides and superoxides, leading to long-lasting secondary damage including...

Showing 13 to 24 of 62 entries