Results 101 to 110 of about 169,101 (262)

DPPH and ABTS radical scavenging activities of catechin and PCG.

, 2016
DPPH and ABTS radical scavenging activities of catechin and PCG.
Benguo Liu (2557657), Sharui Shan (2557654), Hanjun Ma (2557660), Sheng Geng (2557651)   +3 more
core   +1 more source

Screening of various botanical extracts for antioxidant activity using DPPH free radical method [PDF]

, 2013
Aiming at the exploration of herbal use by society, crude extracts of the seeds of some commonly used medicinal plants (Vitis vinifera, Tamarindus indica and Glycin max) were screened for their free radical scavenging  properties using ascorbic acid as ...
Akhtar, N, Shah, A, Murtaza, G, Waqas, MK, ur-Rashid, S, us-Saqib, N   +5 more
core   +1 more source

Valorization of bark extracts from Cerrado and Amazon species: phenolic characterization, antioxidant capacity, and photoprotective potential for circular bioeconomy applications

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Tree bark remains an underexploited source of high‐value‐added phenolic compounds with potential circular bioeconomy applications. This work characterized bark extracts from two species of distinct Brazilian biomes, Stryphnodendron adstringens (Cerrado) and Myrcia eximia (Amazon), obtained with three solvents (ethanol, methanol and acetone ...
Mário Sérgio Lorenço, Danilo José Machado de Abreu, Elesandra da Silva Araujo, Uasmim Lira Zidanes, Laise de Jesus dos Santos, Denisse Concepción Vega Villarruel, Elisângela Elena Nunes Carvalho, Fábio Akira Mori   +7 more
wiley   +1 more source

Comparison of radical scavenging properties of gosypol and its derivatives in the reaction with DPPH

Вісник Харківського національного університету: Серія xімія
Radical scavenging activity of 7,7'-ditosyloxygossypol in reaction with 2,2'-diphenyl-1-piсrylhydrazyl (DPPH) in ethanol was evaluated by total stoichiometries and EC50 values.
Oleksii Dykun, Viktor Anishchenko, Andrii Redko, Volodymyr Rybachenko   +3 more
doaj   +1 more source

pH effect on the reactivity of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical in aqueous solutions

, 2021
2,2-ジフェニル-1-ピクリルヒドラジル(DPPH)ラジカルは活性酸素ラジカルのモデルとして抗酸化物質の活性評価に頻用されてきた(Blois MS. Nature 1958; 181: 1199)。しかし、DPPHラジカルは水に不溶なため水溶液中で用いるにはアルコールなどの共溶媒が必要となり、pHの制御が困難であった。我々は以前に、β-シクロデキストリンを用いてDPPHラジカルの水溶化に成功した(Chem Commun 2015; 51: 8311)。本研究では、リン酸緩衝液中 ...
1015071, 1015070, Yoshimi, Shoji, Kenichiro, Matsumoto, 1015066, 1015065, 福住, 俊一, 1015068, 1015067, 荘司, 好美, 1015073, 小澤, 俊彦, 1015072, 1015064, 1015063, 松本, 謙一郎, 中西, 郁夫, Kei, Ohkubo, Toshihiko, Ozawa, 1015069, Ikuo, Nakanishi, 大久保, 敬   +21 more
core  

Sequential catalytic nanosystem of carbon dots and uricase integrated with polydopamine for therapy of gouty wound ulceration

BMEMat, EarlyView.
Sequential dual‐catalytic treatment of the gout wound ulceration process by CDs‐Uri@PDA. (a) Synthesis steps and morphology of CDs‐Uri@PDA. (b) Sequential treatment process and mechanism of CDs‐Uri@PDA for gout wound ulceration according to (i) uric acid reduction, (ii) antibacterial activity, and (iii) anti‐inflammatory effects.
Yonglan Yang, Yang Yang, Pengpeng Ma, Ruiqi Zhu, Xia Pan, Shaoling Zheng, Bo Chen, Yanli Jin, Youcong Gong, Jie Liu, Tianwang Li, Xu Chen   +11 more
wiley   +1 more source

Redox Behavior of 2,2-Diphenyl-1-Picrylhydrazyl Radical (DPPH∙) Solubilized in Water by β-Cyclodextrin

, 2016
2,2-Diphenyl-1-picrylhydrazyl radical (DPPH●) is a relatively stable radical and frequently used as a reactivity model of reactive oxygen species. However, its insolubility in water precludes the investigation of the redox behavior of DPPH● in aqueous ...
560111, 709803, 560112, 709802, 560113, 709805, 560114, 709804, 560115, 709807, 560116, 709806, 小澤 俊彦, Ozawa, Toshihiko, 中西 郁夫, Matsumoto, Kenichiro, 松本 謙一郎, Nakanishi, Ikuo   +17 more
core  

Electron compensation‐gated nanomotor for immunomodulation and microenvironment remodeling in bacterial pneumonia therapy

BMEMat, EarlyView.
A nanomotor featuring an “electronic lock” via electron compensation in an Au‐Ag alloy ensures therapeutic precision. Near‐infrared light acts as a key, unlocking on‐demand Ag+ release for synergistic bactericidal action and microenvironment remodeling to potently treat bacterial pneumonia. Abstract Bacterial pneumonia treatment is severely hampered by
Chenglong Xue, Xiaoyu Zhao, Yuqian Wang, Lijin Shi, Qi Shuai   +4 more
wiley   +1 more source

Evaluation of antioxidant and antimutagenic activities of aluminum chloride

European Oral Research, 2019
Purpose Hemostatic agents are used to control hemorrhage and the gingival crevicular fluid for dental applications. In this study; the antimutagenic and antioxidant activities of aluminum chloride (AlCl3), a topical hemostatic agent used especially in ...
İnci Rana Karaca, Aysel Uğur, Nurdan Saraç   +2 more
doaj  

Probiotic spore‐based bioresponsive drug delivery for reversing inflammatory bowel disease and its associated anxiety and depression

BMEMat, EarlyView.
A probiotic spore‐based drug delivery system (BCS‐Que@ApNPs) provides excellent targeted delivery, bioresponsive drug release, and long‐term retention (over 48 h), making it suitable for oral treatment of inflammatory bowel disease and its associated anxiety and depression.
Qingling Song, Beiyang Xue, Yao Li, Chuangxi Zhou, Junfei Yang, Yunfei Li, Lingwen Ding, Yun Zhang, Hongjuan Zhao, Lei Wang   +9 more
wiley   +1 more source