影音先锋AV日日骚网址,欧美大屌操逼,中文字幕在线综合,在线三级片视频,波多野结衣乱伦视频,男生操女生网站,看美女的逼逼,国产帅男男Gay在线观看

<button id="eiezk"><video id="eiezk"></video></button>

產(chǎn)品名稱

Hydroxyl Radical Antioxidant Capacity (HORAC) Assay from EAGLE BIOSCIENCES INC.

產(chǎn)品貨號(hào)

HOR39-K01

產(chǎn)品價(jià)格

現(xiàn)貨詢價(jià)，電話：010-67529703

產(chǎn)品規(guī)格

1 x 96 well

產(chǎn)品品牌

EAGLE BIOSCIENCES INC.

產(chǎn)品概述

產(chǎn)品詳情

Edit	&nbsp
Product Name	Hydroxyl Radical Antioxidant Capacity (HORAC) Assay
Description	The Hydroxyl Radical Antioxidant Capacity (HORAC) assay is based on the oxidation of fluorescein by hydroxyl radicals via a classic hydrogen atom transfer (HAT) mechanism. Free radicals are generated by hydrogen peroxide (H2O2). The hydroxyl radicals thus generated quench the fluorescence of fluorescein over time. The antioxidants block the hydroxyl radical mediated oxidation of fluorescein until all of the antioxidant activity in the sample is exhausted, after which the H2O2 radicals react with and quench the fluorescence of fluorescein. The area under the fluorescence decay curve (AUC) is used to quantify the total hydroxyl radical antioxidant activity in a sample and is compared to a standard curve obtained using various concentrations of gallic acid. Unlike other antioxidant activity assays, the fluorescent Hydroxyl Radical Antioxidant Capacity (HORAC) assay provides a direct measurement of antioxidant capacity against hydrophilic chain-breaking hydroxyl radicals. Sample Types: biological fluids. Range: 200 - 800 μM. Sensitivity: 200 μM. Time: 30 minutes ? It is now well established that oxidative stress is a major risk factor for the development of several diseases including atherosclerosis, cardiovascular disease, and cancer. Oxidative stress is the condition in which there is an imbalance between the concentrations of reactive oxygen species (ROS) and physiological antioxidants, resulting in oxidative damage to many biomolecules within the cell. Products of ROS-mediated oxidation are widely used to monitor oxidative stress. However, it is also important to assess the antioxidant capacity of cells and biological fluids, as well as putative ``functional foods'' to assess their antioxidant capacity. Organisms possess multiple antioxidant systems to help regulate ROS and prevent oxidative stress. In vertebrates, these include enzymes that metabolize ROS, antioxidant proteins, and smaller molecules that are important antioxidants. These antioxidants include hydrophilic as well as lipid-soluble molecules that are localized throughout various tissues and cell types.
Size	1 x 96 well
Concentration	n/a
Applications	RUO
Other Names	Hydroxyl Radical Antioxidant Capacity (HORAC) Assay
Gene, Accession, CAS #	n/a
Catalog #	HOR39-K01
Price
Order / More Info	Hydroxyl Radical Antioxidant Capacity (HORAC) Assay from EAGLE BIOSCIENCES INC.
Product Specific References	n/a
產(chǎn)品資料

<button id="eiezk"><video id="eiezk"></video></button>