Results 81 to 90 of about 136,864 (311)

Photocatalytically Activated Cu‐N1S3 Single‐Atom Nanozyme: Enhancing Enzyme Activities and Antibacterial Synergy for Highly Efficient Fruit Preservation

open access: yesAdvanced Science, EarlyView.
This study presents S‐coordinated Cu single‐atom nanozymes (Cu/CNS) fabricated via mild photocatalytic self‐assembly strategy. The nanozyme exhibits exceptional multi‐enzyme activity and near‐perfect antimicrobial efficacy. Incorporated into chitosan‐gelatin film, it enables pH‐responsive, broad‐spectrum fruit preservation, more than doubling the shelf‐
Chuanlong Men   +7 more
wiley   +1 more source

Antioxidant Potential of Calophyllum gracilentum: A Study on Total Phenolic Content, Total Flavonoid Content, and Free Radical Scavenging Activities [PDF]

open access: diamond, 2023
Nurr Maria, Ulfa Seruji   +6 more
openalex   +1 more source

SMart Nanoparticle–Hydrogel Hybrid System for Synergistic Eradication of Infection and Promotion of Wound Healing

open access: yesAdvanced Science, EarlyView.
The integrated system, comprising bacterial‐targeted photothermal nanoparticles (Fe2O3‐CS@RBP) and multifunctional hydrogels (PAOC‐3@BA) modules, achieves rapid wound healing within one week. This work introduces a smart therapeutic platform that integrates bacterial targeting, self‐regulating photothermal therapy, tissue adhesion, and stimulus ...
Hongping Wan, Huirong Tan, Xinghong Zhao
wiley   +1 more source

Utilizing Supercritical CO2 for Bee Brood Oil Extraction and Analysis of Its Chemical Properties

open access: yesFoods
To obtain oil from bee brood, which was dried using a tray drying method, this study used the supercritical CO2 extraction method. Extraction occurred at temperatures between 40–60 °C and low pressures of 180–220 bar for 1.5 h, with a high pressure of ...
Pairote Wiriyacharee   +8 more
doaj   +1 more source

Genome‐Wide Association Analyses Reveal the Genetic Basis of EMS Mutagenesis Efficiency in Rice

open access: yesAdvanced Science, EarlyView.
Based on large‐scale screening of 420 rice accessions, GWAS identified the Rc locus as a key regulator of EMS mutagenesis efficiency. Functional Rc alleles enhance both seed survival and genome‐wide mutation frequency by boosting antioxidant enzyme activities (CAT, SOD, POD) and reducing oxidative damage.
Peizhou Xu   +9 more
wiley   +1 more source

ANALISIS KADAR FENOLIK TOTAL DAN FLAVONOID TOTAL EKSTRAK ETANOL KULIT PISANG KEPOK (Musa pradisiaca L)

open access: diamond, 2023
Novia Ariani   +6 more
openalex   +2 more sources

Structure‐Guided Engineering of a Promiscuous O‐Methyltransferase for a SAM Regeneration Biocatalysis Platform of Methylated Pharmaceuticals

open access: yesAdvanced Science, EarlyView.
A substrate promiscuous and regioselective O‐methyltransferase, SmOMT, is functionally and structurally characterized. A double mutant, SmOMTE152A/I306A, exhibited enhanced catalytic activity. By coupling this mutant with a mutant halide methyltransferase, AtHMTV140T, for SAM regeneration, a superior artificial fusion enzyme, AtHMTV140T‐L95‐SmOMTE152A ...
Xiran Xiong   +11 more
wiley   +1 more source

Phosphorus, iron, manganese, zinc and copper in relation to total flavonoids in medicinal herbs and their infusions originating from Poland, Lithuania and Ukraine / Fosfor, żelazo, mangan, cynk i miedź w relacji do sumy flawonoidów w ziołach leczniczych i naparach pochodzących z Polski, Litwy i Ukrainy

open access: yesEnvironmental Protection and Natural Resources, 2015
Celem badań była identyfikacja różnic w składzie pierwiastkowym (P, Fe, Mn, Zn i Cu) oraz w zawartości sumy flawonoidów w ziołach leczniczych pochodzących od 9 gatunków botanicznych, zebranych w Polsce, Litwie i Ukrainie. Pierwiastki metaliczne oznaczono
Konieczyński Paweł, Wesołowski Marek
doaj   +1 more source

Nanozymes Integrated Biochips Toward Smart Detection System

open access: yesAdvanced Science, EarlyView.
This review systematically outlines the integration of nanozymes, biochips, and artificial intelligence (AI) for intelligent biosensing. It details how their convergence enhances signal amplification, enables portable detection, and improves data interpretation.
Dongyu Chen   +10 more
wiley   +1 more source

Scavenging capacity of superoxide radical and screening of antimicrobial activity of Castanea sativa Mill. extracts

open access: yesCzech Journal of Food Sciences, 2010
The superoxide radical scavenging and antimicrobial activity were examined of sweet chestnuts: seeds, peeled chestnut, brown seed coat, leaves, catkin, spiny burs, and chestnut bark as well as of Lovran's marrone leaves and grafted Italian marrone ...
Jelena Živković   +7 more
doaj   +1 more source

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