Results 161 to 170 of about 5,178,375 (352)

A Green Synthesis of Silver Gel Using Tannic Acid , its Characterization and Antibacterial Activity [PDF]

open access: yes, 2015
摘要 研究目的: 纳米银的绿色合成是近年来纳米材料研究的热点之一,现有关于纳米银的制备方法和抗菌性能研究尚缺乏统一标准。单宁酸制备纳米银凝胶是一种简便高效的方法,但其抗菌性能优劣和能否将其应用于临床治疗,国内外未见相关报道。本实验采用一种简便高效的方法制备出稳定性好和粒径均匀的单宁酸银凝胶,并对单宁酸银凝胶进行多种表征分析。在表征单宁酸银相关化学结构性质的基础上,制备出三组不同数量级别的单宁酸银抗菌凝胶,采用MTT法对其进行抗菌性能测定,优化出抗菌最佳浓度,探讨了单宁酸银凝胶对四种不同细菌的抗菌效果 ...
陈玲凤
core  

Neuronal differentiation and tissue engineering strategies for central neurous system injury repair

open access: yesBMEMat, EarlyView.
This review outlines tissue engineering advances for central nervous system (CNS) injury treatment, focusing on three core components: seed cells, inductive factors, and scaffold materials, with evaluation of their respective strengths and limitations. Tissue engineering for CNS injury repair.
Zhuqing Xia   +9 more
wiley   +1 more source

Effects of Condensed Tannins from Quebracho Extract on the Kinetic of in vitro Gas Production on Trifolium repens, Lotus corniculatus and Lolium perenne [PDF]

open access: yes, 2014
The aim of this work was to study the effect of condensed tannins (CT) on the kinetic of gas production in vitro, on the three main species of Azorean pasture: Trifolium repens, Lotus corniculatus and Lolium perenne, using Quebracho extract as the source
Borba, Alfredo Emílio Silveira de   +1 more
core  

Macrophage‐targeted cerium‐tannic acid metal‐polyphenol framework nanoenzyme promotes in situ heart valves regeneration through adaptive immunomodulation

open access: yesBMEMat, EarlyView.
A novel nanoenzyme based on cerium ions‐tannic acid metal‐polyphenol framework (FCT) has been developed and loaded onto DHVs for targeting M1 macrophages to reduce their ROS level and reprogram macrophage phenotype, thereby eliminating inflammation, promoting endothelialization and adaptive matrix remodeling of scaffolds, offering a promising strategy ...
Peng Song   +9 more
wiley   +1 more source

Development of a co‐culture of Ureibacillus thermosphaericus and Cupriavidus taiwanensis for inhibitors removal from hemicellulose prehydrolysate

open access: yesBiotechnology Progress, EarlyView.
For biofuels production, hemicellulose pre‐hydrolysate is considered as an attractive feedstock rich in fermentable sugars. The pre‐hydrolysate derived from lignocellulosic biomass comprises, along with sugars, several inhibitors which can hamper its efficient conversion.
Mariem Theiri   +3 more
wiley   +1 more source

Bottom‐up Strategies for Generating Polymer Protocells That Mimic Cellular Communication

open access: yesChemistry – A European Journal, EarlyView.
This review focuses on polymeric protocells produced using a bottom‐up approach. Polymer‐based assemblies guarantee stability and designability by adjusting the properties of the amphiphilic copolymers used. The review covers protocell architectures, production, and their intra‐ and intercellular communication mechanisms.
Gloria Saorin   +3 more
wiley   +1 more source

Oxygen consumption during mineralization of organic compounds in water samples from a small sub-tropical reservoir (Brazil)

open access: yesBrazilian Archives of Biology and Technology, 2003
Assays were carried out to evaluate the oxygen consumption resulting from mineralization of different organic compounds: glucose, sucrose, starch, tannic acid, lysine and glycine. The compounds were added to 1 l of water sample from Monjolinho Reservoir.
Cunha-Santino Marcela Bianchessi da   +1 more
doaj  

Tannic Acid Effects on Raphanus Raphanistrum Root Acid Phospatase [PDF]

open access: yes, 2000
Author Institution: Department of Biology and Department of Chemistry, Hiram CollegeThe effects of tannic acid (TA) on acid phosphatase (APase) (E.C.3.1.3-2) from root extracts of fertilized or unfertilized Raphanus raphanistrum plants were examined.
Fried, Colleen A.   +2 more
core  

LZTS2 Negatively Regulates Centrosomal CEP135 Levels and Microtubule Nucleation

open access: yesCytoskeleton, EarlyView.
ABSTRACT The microtubule cytoskeleton is a fundamental functional component of the cell. In vertebrate proliferating cells, centrosomes are the primary microtubule organizing center (MTOC), and their dysregulation has been linked to genomic instability and cancer.
Catarina Peneda   +4 more
wiley   +1 more source

Iron in Surface and Subsurface Waters, Grizzly Bar, Southeastern Alaska [PDF]

open access: yes, 1972
Completion Report for Project A-019-ALAS to the Office of Water Resources Research, Department of the Interior, August 1972Atomic absorption spectrophotometric measurements for total iron were made on 69 samples of water from 8 different environments in
Hoskin, Charles M., Slatt, Roger M.
core  

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