亚洲国产精品二区久久,日本美女后入式午夜视频在线观看,国产污视频在线观看,欧美日韩国产精品中文字幕在线观看

行業(yè)產(chǎn)品

  • 行業(yè)產(chǎn)品

珀金埃爾默醫(yī)學(xué)診斷產(chǎn)品（上海）有限公司


當(dāng)前位置：珀金埃爾默醫(yī)學(xué)診斷產(chǎn)品（上海）有限公司>>>>WGA PVT PEI TYPE B 500 MG

WGA PVT PEI TYPE B 500 MG

返回列表頁(yè)
參  考  價(jià)面議
具體成交價(jià)以合同協(xié)議為準(zhǔn)

產(chǎn)品型號(hào)

品       牌

廠(chǎng)商性質(zhì)其他

所  在  地

聯(lián)系方式：查看聯(lián)系方式

更新時(shí)間：2022-10-15 15:21:54瀏覽次數(shù)：104次

聯(lián)系我時(shí)，請(qǐng)告知來(lái)自 環(huán)保在線(xiàn)


    暫無(wú)信息


    暫無(wú)信息

經(jīng)營(yíng)模式：其他

商鋪產(chǎn)品：677條

所在地區(qū)：

產(chǎn)品簡(jiǎn)介

WGA-coated SPA beads, for capturing cell membranes in proximity-based radiometric scintillation assays.

詳細(xì)介紹

The treatment of PVT-WGA SPA beads with positively charged polyethyleneimine (PEI) blocks potential non-specific binding sites on the SPA bead surface. There are two SPA bead types available with PEI treatment. The PVT-WGA-PEI type A SPA beads are treated with PEI prior to the coupling of WGA to the PVT SPA bead. The PVT-WGA PEI type B SPA beads are treated with PEI after the WGA coupling stage. The PVT-WGA-PEI type A and type B SPA beads exhibit different characteristics with regard to the non-specific binding of radiolabelled ligａnd directly to the SPA bead. Therefore, both bead types should be evaluated when deciding which SPA bead to use and both are included in the Select-a-Bead Kit. The binding capacity of both bead types for cell membrane protein remains 10–30 μg membrane protein per milligram of SPA bead.

SPA Scintillation beads are microspheres containing scintillant which emit light in the blue region of the visible spectrum. As a result, these beads are ideally suited to use with photomultiplier tube (PMT) counters such as the MicroBeta2 or TopCount.

Two types of core SPA Scintillation bead are available - yttrium silicate (YSi) and Polyvinyltoluene (PVT). PVT beads are plastic, larger in size, and stay in suspension longer than the crystalline YSi beads.

Scintillation proximity assay (SPA) is a homogeneous and versatile technology for the rapid and sensitive assay of a wide range of biological processes, including applications using enzyme and receptor targets, radioimmunoassays, and molecular interactions. When 3H, 14C, 33P, and 125I radioisotopes decay, they release β-particles (or Auger electrons, in the case of 125I). The distance these particles travel through an aqueous solution is dependent on the energy of the particle. If a radioactive molecule is held in close enough proximity to a SPA Scintillation Bead or a SPA Imaging Bead, the decay particles stimulate the scintillant within the bead to emit light, which is then detected in a PMT-based scintillation counter or on a CCD-based imager, respectively. However, if the radioactive molecule does not associate with the SPA bead, the decay particles will not have sufficient energy to reach the bead and no light will be emitted. This discrimination of binding by proximity means that no physical separation of bound and free radiochemical is required.

規(guī)格

自動(dòng)化兼容 Yes
珠型或核心珠型 PVT
涂層處理 PEI, WGA PEI Type B
檢測(cè)方法 Radiometric
產(chǎn)品品牌名稱(chēng) SPA Scintillation Beads
運(yùn)輸條件 環(huán)境
產(chǎn)品尺寸 500 mg

其他推薦產(chǎn)品更多>>

您感興趣的產(chǎn)品PRODUCTS YOU ARE INTERESTED IN

環(huán)保在線(xiàn) 設(shè)計(jì)制作，未經(jīng)允許翻錄必究 .? ? ? Copyright(C)?2021 http://m.kytsldc.cn,All rights reserved.

以上信息由企業(yè)自行提供，信息內(nèi)容的真實(shí)性、準(zhǔn)確性和合法性由相關(guān)企業(yè)負(fù)責(zé)，環(huán)保在線(xiàn)對(duì)此不承擔(dān)任何保證責(zé)任。 溫馨提示：為規(guī)避購(gòu)買(mǎi)風(fēng)險(xiǎn)，建議您在購(gòu)買(mǎi)產(chǎn)品前務(wù)必確認(rèn)供應(yīng)商資質(zhì)及產(chǎn)品質(zhì)量。

會(huì)員登錄

×

請(qǐng)輸入賬號(hào)

請(qǐng)輸入密碼

=

請(qǐng)輸驗(yàn)證碼

收藏該商鋪

請(qǐng) 登錄 后再收藏

提示

您的留言已提交成功！我們將在第一時(shí)間回復(fù)您~