Results 71 to 80 of about 135,838 (246)

Antioxidant activity measured by the DPPH assay.

, 2013
The dose dependent radical scavenging activity of the four flavones was measured by the decrease in absorption at 517 nm. The data show the concentration of DPPH remaining in the samples 20 min after addition of mosloflavone (♦), negletein (•), 5,6 ...
Cristian Sabellico (404284), Tomáš Filipský (404287), Paolo Luly (404293), Paolo Bovicelli (404295), Sandra Incerpi (404296), Luciano Saso (404294), Stefano Leone (208483), Giuliana Righi (404292), Veronika Staňková (404286), Paolo De Vito (404289), Ilaria Proietti Silvestri (404291), Jan Hájek (404285), Emanuele Lombardo (404283), Eugenia I. Bavavea (404290), Valentina Balducci (404288), Jens Z. Pedersen (122528)   +15 more
core   +1 more source

Aptamer‐Directed Porous DNA Nanocomposite Hydrogel for Active Pulp Preservation: Immunomodulation, Stem Cell Recruitment and Reparative Dentinogenesis

Advanced Science, EarlyView.
This study presents an injectable DNA‐based porous hydrogel integrating catechol motifs and targeting aptamers for pulpitis management. Upon in situ crosslinking, the scaffold actively recruits endogenous dental pulp stem cells, restores redox homeostasis, and modulates immune responses.
Luhui Cai, Huan Yu, Zihan Ni, Kan Chen, I‐Chen Tsai, Zeyu Bao, Shuo Sun, Weichang Li, Yunhua Chen, Qiong Xu   +9 more
wiley   +1 more source

Crystal Guava (Psidium guajava L. “Crystal”): Evaluation of In Vitro Antioxidant Capacities and Phytochemical Content

The Scientific World Journal, 2020
Free radicals can cause many diseases, such as cancer. Antioxidant is a compound that could scavenge free radicals. One of the natural antioxidants is guava.
Rika Hartati, Hashifah I. Nadifan, Irda Fidrianny   +2 more
doaj   +1 more source

Correlation between antioxidant activity of synthetic zeolites pillared titanium dioxide and iron (III) oxide with adsorption DPPH

, 2014
Degenerative diseases caused by the excess of free radicals in the body are the highest causes of death in the world. Free radicals in the body bring about premature aging by damaging the fatty tissue under the skin, decreasing skin firmness and causing ...
Rininingsih EM, Uning
core  

DPPH Radical-Scavenging Ability of Browning Materials

, 2004
グルコースとグリシンによるアミノカルボニル反応で生成した褐変物質、ショ糖のカラメル化反応によって生成した褐変物質、魚醤に含まれる褐変物質、タマネギを加熱して得られる褐変物質についてDPPHラジカル消去能を測定し、次のような結果を得た。1. pH5.0、6.0、7.0および7.4で0.5M-グルコースおよびグリシンの等量混液を加熱し、アミノカルボニル反応を行ったところ、pHが高いほど着色度が高く、着色度が高いほどDPPHラジカル消去能も高くなった ...
SHIMOHASHI, Atsuko, 下橋, 淳子, シモハシ, アツコ   +2 more
core   +1 more source

Engineered Carbon Dots from a Traditional Herb Pair Orchestrate Concurrent Antioxidant and AP‐1‐Mediated Inflammation to Attenuate Renal Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study integrates two complementary traditional Chinese medicine components as precursors to synthesize bioactive AM‐AS@CDs. Compared with single‐component CDs, these dual‐component CDs exhibit enhanced antioxidant capacity and superior renoprotective effects.
Bixiao Liu, Fuying Zhu, Zhuqing Wang, Jiawen Chen, Xiaomiao Cui, Congzhong Yang, Yao Peng, Dengyuan Feng, Li Lu, Hui Wei, Xiaozhi Zhao   +10 more
wiley   +1 more source

DPPH antioxidant assay.

, 2019
CAG antioxidant activity compared to raw material GO, and citrate synthesized rGO-AuNPs nanocomposite. Results expressed as mean from triplicate analysis ± SEM. a, b and c indicates a significant increase in DPPH inhibition of respective treatments (CAG,
Najihah M. Hashim (6697304), Lina A. Al-Ani (6697301), Farkaad A. Kadir (2822570), Vincent K. S. Hsiao (6697313), Wageeh A. Yehye (2822576), Mohammed A. AlSaadi (6697307), Nurhidayatullaili M. Julkapli (6697310)   +6 more
core   +1 more source

Enhancing Biogenic Formic Acid Production in the Modified OxFA Process by Acetonitrile Addition

Advanced Science, EarlyView.
In this study, the beneficial effect of using acetonitrile as a co‐solvent in the modified OxFA process is shown, outperforming methanol, demonstrating improved reaction kinetics combined with high selectivity for the HPA‐2 (H5PV2Mo10O40) catalyzed oxidation of xylose to FA.
Jan‐Dominik H. Krueger, Pegah Saedi, Maximilian J. Poller, Alberto Collauto, Jason P. Hallett, David Robinson, Maxie M. Roessler, Jakob Albert   +7 more
wiley   +1 more source

DPPH and NO scavenging activity of grumixama and guabiju extracts.

, 2023
DPPH and NO scavenging activity of grumixama and guabiju extracts.
Bruna Tischer (1460761), Philipus Pangloli (15447369), Vermont P. Dia (1481554), Matthew Reeder (614335), Andrea Nieto-Veloza (15447372)   +4 more
core   +1 more source

Orchestrated Engineered Polyphenol‐Peptide Condensates Coupled With β‐GP Reverses Diabetic Osteoporosis by Remodeling Mitophagy

Advanced Science, EarlyView.
A multifunctional β‐GP@EGCG‐E7 nanoplatform is engineered by polyphenol–peptide condensation and phosphate loading. Bone‐targeted delivery, antioxidant and anti‐inflammatory activity, and mitophagy restoration are integrated in one system, enabling protection of osteoblasts and endothelial cells and promoting bone regeneration under diabetic ...
Xiuyun Xu, Meiqin Zhang, Ting Wu, Erfan Wei, Andrei Y. Hancharou, Zeying Wang, Zijuan Wang, Letian Lv, Likun Wu, Xingtong Pan, Qiyue Zhu, Xinyi Dong, Hao Liu, Yongsheng Zhou   +13 more
wiley   +1 more source