Results 41 to 50 of about 160,911 (301)

Scavenging of DPPH by Persistent Free Radicals in Carbonized Particles

Advanced Sustainable Systems, 2023
AbstractPersistent free radicals (PFR) in carbonized particles may play a role in degradation of environmental compounds. The influence of PFR is evaluated in various carbonized particles on their radical scavenging efficiency upon the common radical indicator 2‐2‐diphenyl‐1‐picrylhydrazyl (DPPH).
Karin H. Adolfsson, Ping Huang, Monika Golda‐Cepa, Huan Xu, Andrzej Kotarba, Minna Hakkarainen   +5 more
openaire   +3 more sources

Results of antioxidant activity performed with DPPH method (DPPH free radical scavenging activity).

, 2019
Results of antioxidant activity performed with DPPH method (DPPH free radical scavenging activity).
Monica Notarbartolo (5171600), Paola Poma (5171591), Maurizio Sajeva (3262542), Manuela Labbozzetta (5171594), Pietro Zito (5171597)   +4 more
core   +1 more source

A Blood‐Derived Double‐Network Hydrogel with Robust Wet Adhesion for Keratinized Mucosa Regeneration via Neutrophil Phenotype Reprogramming and Mechanophysical Niche Modulation

Advanced Science, EarlyView.
The iPRF‐MA/Alg‐NHS/Lut@EGCG (PGAE) double‐network hydrogel achieves durable wet adhesion in the oral environment. It simultaneously reprograms neutrophils from NETosis to phagocytosis for biofilm clearance, and activates the FAK‐RhoA‐YAP mechanotransduction pathway in gingival fibroblasts to drive extracellular matrix remodeling, thereby promoting ...
Sicong Ren, Xinting Yang, Jingxia Chen, Yihan Wang, Jian Feng, Jing Zhou, Jiaxin Luo, Jingjie Zhai, Quan Lin, Yanmin Zhou   +9 more
wiley   +1 more source

INTERCALATION OF FREE RADICAL, DPPH, INTO MONTMORILLONITE

Analytical Sciences, 1991
The adosorption of DPPH in the interlayer of sodium montmorillonite and sodium saponite have been investigated by ESR. As the results, DPPH molecules dimerize to form diamagnetic species in montmorillonite, whereas DPPH molecules in saponite exist as isolated stable free radical species at room temperature.
NAKAMURA, Yuji, WATANABE, Tokuko
openaire   +2 more sources

Biomimetic Hydrogel System Targeting S100A8 Centered Neuroimmune Crosstalk and Hypoxia Induced Neuronal Injury

Advanced Science, EarlyView.
A biomimetic hydrogel (HPC@Gel) was developed for traumatic brain injury repair by combining oxygen‐carrying hemoglobin nanoparticles and anti‐inflammatory carbon quantum dots within a brain‐like matrix. The system alleviated hypoxia, reduced harmful neuroimmune signaling, protected neurons, supported neural regeneration, and improved neurological and ...
Peng Liu, Xiaoyang Wu, Xiaoyin Liu, Yuyan Wang, Shichao Jiang, Kai Wu, Gaowei Li, Jie Ding, Chengheng Wu, Dan Wei, Jing Sun, Hongsong Fan, Liangxue Zhou   +12 more
wiley   +1 more source

Differences in Antioxidant Activity of Butterfly Pea Flower Infusion (Clitoria ternatea L.) With The Addition of Lemon and Lime

Indonesian Journal of Pharmaceutical Education
Antioxidants are needed to counteract free radicals in the body. Telang flower (Clitoria ternatea L.), which is rich in polyphenols, has antioxidant activity that can act as an antidote to free radicals.
Milda Lailatul Mukarromah, Nurul Yulia, Mardhiyah Mardhiyah   +2 more
doaj   +1 more source

EPR Spectrum Analysis of DPPH and MnCl2

International Journal For Multidisciplinary Research, 2023
This paper presents the findings of electron paramagnetic resonance (EPR) spectroscopy experiments conducted on two different samples: 2,2-diphenyl-1-picrylhydrazyl (DPPH) and Manganese Chloride (MnCl2) dissolved in H2O. The experiments were conducted at Dr. D. Petasis EPR lab located in Allegheny College, Meadville, PA, USA.
openaire   +1 more source

Multi‐Component Functionalized Bifidobacterium Longum Hydrogel for Multi‐Target Integrated Therapy of Colitis‐Associated Anxiety and Depression

Advanced Science, EarlyView.
A pH/MMP dual‐responsive Bifidobacterium longum (BL) hydrogel (INPs@BL@Gel) functionalized with baicalin, tyrosine, and inulin is constructed. It enables gastric protection, inflammation‐targeted release, and prolonged intestinal colonization. By remodeling gut microbiota, elevating beneficial neuroactive metabolites (homovanillic acid, short‐chain ...
Shuo Zhang, Yujie Zhang, Jiansheng He, Shunlian Li, Qingyan Ma, Qiao Li, Yudan Zhang, Yiyang Wang, Shaobo Ma, Songyan Jin, Chune Li, Xueyong Xie, Hang Zhang, Junze Deng, Xueqin Song, Daocheng Wu, Xiancang Ma, Feng Zhu   +17 more
wiley   +1 more source

Phenolic metabolites, biological activities, and isolated compounds of Terminalia muelleri extract

Pharmaceutical Biology, 2017
Context: Terminalia muelleri Benth. (Combretaceae), is rich with phenolics that have antioxidant and cytotoxic activities. No screening studies were published before on T. muelleri.
Walaa A. El-Kashak, Samir M. Osman, Ahmed H. Gaara, Sayed A. El-Toumy, Tahia K. Mohamed, Iñaki Brouard   +5 more
doaj   +1 more source

Aktivitas Penangkapan Radikal DPPH Ekstrak Gambir (Uncaria gambir Roxb.) [PDF]

, 2012
Gambir contains high level of polyphenolic compounds known as catechins. The objectives of the research were to investigate the DPPH diphenyl picrylhydrayl radical scavenging activity of gambir extract and to identify the isolated phenolic compounds ...
Santoso, Umar, Suparmo, Suparmo, Rauf, Rusdin   +2 more
core   +1 more source