Results 61 to 70 of about 4,361 (214)

A new ferric iron reducing assay for evaluation total antioxidant activity of food and biological samples

Plant Biotechnology Persa, 2020
Various methods have been developed in recent years to evaluate the total antioxidant activity of food and biological samples. In this study, a new ferric iron reducing assay was applied for measuring total antioxidants.
Parisa Sadighara
doaj  

Graphene Quantum Dot‐Induced Microstrain for Framework Stabilization of High‐Entropy Prussian Blue Analog in High‐Current Alkaline Hydrogen Evolution Reaction

Advanced Functional Materials, Volume 36, Issue 66, 17 August 2026.
The intrinsic distortion‐rich lattice of HEPBA with GQD‐enabled microstrain engineering establishes a mechanistic route toward high‐performance alkaline hydrogen evolution reaction. HEPBA inherently feature heterogeneous local coordination environments arising from multimetal incorporation, while properly introducing GQD during coprecipitation ...
Mia Rinawati, Yu‐Ru Liu, Wei‐Hsiang Huang, Kuan‐Yu Lin, Ching‐Ju Ho, Ling‐Yu Chang, Karel Roubik, Ni Luh Wulan Septiani, Ahmad Nuruddin, Wei‐Nien Su, Min‐Hsin Yeh   +10 more
wiley   +1 more source

بررسی جایگاه اتصال آنزیم هگزوکیناز روی غشای خارجی میتوکندری در سلول های سرطانی مغز [PDF]

مجله دانشگاه علوم پزشکی سبزوار, 1970
زمینه و هدف: در سرطان‌های مغز، منبع اصلی انرژی از مسیر گلیکولیز تأمین می‌شود. آنزیم شروع‌کننده این مسیر نیز هگزوکیناز نوع یک (HKI) می‌باشد. این آنزیم در دو جایگاه متفاوت به غشای خارجی میتوکندری متصل می‌شود.
حسن رامشینی
doaj  

Interfacial Acid Sites‐Mediated ZnO‐Based Electrocatalysts for Sustainable Dual‐Pathway H2O2 Production and Rechargeable Zn‐H2O2 Electrochemical Cell

Advanced Materials, Volume 38, Issue 44, 7 August 2026.
In this work, a synergistic strategy introduces interfacial acid sites, oxygen vacancies, and built‐in electric field into ZnSe/ZnO heterojunction to optimize its electronic structure and electrode micro‐environment. This overcomes sluggish oxygen reduction reaction kinetics and low H2O2 selectivity, achieving record H2O2 productivity (754.4 M gcat−1 ...
Lijun Yang, Sitong Liu, Wencheng He, Fengzhan Sun, Shubing Bi, Hongge Pan, Lingfeng Zhu, Tianyi Ma, Lei Zhang   +8 more
wiley   +1 more source

Development of an Analytical Method for Fast Detection of Residual Hydrogen Peroxide in Foods Based on Oxidative Etching of Avocado Seed Extract Capped With Gold Nanoparticles

Journal of Chemistry
A rapid hydrogen peroxide analytical method was developed in this study. The developed method incorporated gold nanoparticles (Au NPs) and potassium thiocyanate (KSCN) to improve residual hydrogen peroxide detection performance. Specifically, Au NPs were
Wayne C. Liao, Yu-Chen Lin, Pin-Yi Huang, Ching-Yi Lien   +3 more
doaj   +1 more source

Ordered Hydrogen Bond Network Regulates Synergistic H and OH Spillover to Promote Alkaline Hydrogen Evolution

Advanced Energy Materials, Volume 16, Issue 31, 19 August 2026.
Ru─Ni nanoclusters are anchored on WC via a rapid microwave quasi‐solid‐state method to build an ordered flexible interfacial hydrogen bond network. This structure boosts water dissociation and enables barrier‐free H/OH transport via the Grotthuss mechanism, forming dual H‐to‐Ru and OH‐to‐Ni spillover pathways to overcome the key challenges of alkaline
Xiangrui Zhuge, Chengfeng Wang, Xiangrui Zhuge, Wenli Yu, Qi Wu, Weiping Xiao, Lei Wang, Tianyi Ma, Zexing Wu   +8 more
wiley   +1 more source

An Efficient and Eco-Friendly Procedure for Electrophilic Thiocyanation of Anilines and 1-(Substituted benzylidene)-2-phenyl Hydrazines

Chemistry
Thiocyanates form an important class of organic compounds commonly found in natural products that exhibit excellent antimicrobial activity. The electrophilic thiocyanation is one of the most effective methods of introducing a -SCN functional group to the
A. M. M. Mallikarjunaswamy, Gouthami Kuruvalli, Khajamohiddin Syed, Vaddi Damodara Reddy, Vipin A. Nair   +4 more
doaj   +1 more source

Synergistic and Antagonistic Effects of Anions and Ipomoea invulcrata as Green Corrosion Inhibitor for Aluminium Dissolution in Acidic Medium

International Journal of Electrochemical Science, 2010
The extract of Ipomoea invulcrata (IP) has been studied as a possible source of green inhibitor for corrosion of aluminium in 1 M HCl at 30-60 oC using the conventional weight loss technique.
I.B. Obot, N.O. Obi-Egbedi, S.A. Umoren, E.E. Ebenso   +3 more
doaj   +1 more source

Electron‐Donating Multifunctional Molecules: A Strategy for High‐Performance Perovskite Solar Cells

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Multifunctional molecules containing electron‐donating groups are critically important in perovskite solar cells (PSCs), including defect passivation, crystallization modulation, energy level alignment, and other functions. This review systematically examines the application and research progress of such multifunctional molecules in PSCs ...
Heng Liu, Hongxing Yuan, Hanyu Guo, Wenhao Zhou, Zhaoqi Zhang, Hongfei Zhang, Suyang Sun, Yiming Zhu, Zhenghui Qiu, Zhiyuan Zhu, Pengfei Yue, Guoshang Zhang, Qiongqiong Lu, Weihai Zhang, Kexing Song   +14 more
wiley   +1 more source

PERBANDINGAN VALIDASI METODE ANALISIS ION BESI SECARA SPEKTROFOTOMETRI SINAR TAMPAK DENGAN PENGOMPLEKS KSCN DAN 1,10-ORTOFENANTROLIN [PDF]

, 2018
AbstrakPenelitian ini bertujuan untuk mengetahui dan menentukan validasi mana yang lebih baik dalam pengujianion besi secara spektrofotometri sinar tampak menggunakan pengompleks 1,10-fenantrolin dan tiosianat.
Sunarto, Sunarto, Khasanah, Sari Rosiati Nur   +1 more
core   +2 more sources