詳細(xì)介紹
諾如快檢卡(西班牙)
廣州健侖生物科技有限公司
【包裝規(guī)格】
20 測(cè)試/盒
【預(yù)期用途】
用于體外診斷,。諾如病毒抗原快速檢測(cè)試劑卡(免疫層析法)是用免疫層析的方法快速定性
測(cè)定人糞便樣本中,基因1型(GGI)和基因2型(GGII)的諾如病毒,。該試劑可以協(xié)助診斷胃腸
炎,,分析有疑似諾如病毒胃腸炎癥狀的兒童和成人的糞便樣本。
【檢驗(yàn)原理】
諾如病毒抗原快速檢測(cè)試劑卡(免疫層析法)為快速,、多步法側(cè)流免疫層析檢測(cè),,應(yīng)用了抗
諾如病毒抗原的單克隆抗體,。在加樣孔旁的反應(yīng)窗內(nèi),有兩條包被了固定抗體的平行線,。檢測(cè)線(T)包含了抗諾如病毒抗原的抗體,。質(zhì)控線C包含了抗鼠IgG的抗體。酶標(biāo)記物1包含了生物素化的抗諾如病毒抗原的抗體,,酶標(biāo)記物2是由結(jié)合了辣根過(guò)氧化物酶的鏈霉菌抗生物素蛋白組成,。檢測(cè)過(guò)程中,先從已經(jīng)準(zhǔn)備好的糞便樣本懸濁液中,,吸取一定量的上清液,,與一定量的酶標(biāo)記物1混合,加入檢測(cè)卡較小的窗口中(加樣孔),。經(jīng)過(guò)室溫下10 分鐘的孵育后,,樣本和酶標(biāo)記物混合液被檢測(cè)膜吸收,并在過(guò)濾片上移動(dòng),。在這個(gè)過(guò)程中,,諾如病毒陽(yáng)性標(biāo)本中的抗原-酶標(biāo)記物復(fù)合物,與檢測(cè)線上固定的抗諾如病毒抗體結(jié)合,,沒(méi)有結(jié)合抗原的生物素化的抗體則結(jié)合在質(zhì)控線上,。之后加入酶標(biāo)記物2,在室溫下孵育1 分鐘,,結(jié)合了過(guò)氧化物酶的鏈霉菌抗生物素,,與通過(guò)特異性抗體而固定在膜上的生物素結(jié)合。
在反應(yīng)窗加入洗液,,洗掉沒(méi)有結(jié)合的過(guò)氧化物酶,。如果測(cè)試為諾如病毒陽(yáng)性,加入底物后三
分鐘,,在檢測(cè)線(T)上就會(huì)出現(xiàn)藍(lán)線,,同時(shí)質(zhì)控線(C)上也會(huì)出現(xiàn)藍(lán)線。如果質(zhì)控線沒(méi)有變藍(lán),,說(shuō)明這次檢測(cè)的操作存在問(wèn)題,,結(jié)果不可以用于診斷。
諾如快檢卡(西班牙)
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【公司名稱】 廣州健侖生物科技有限公司
【市場(chǎng)部】 歐
【】
【騰訊 】 2042552662
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號(hào)二期2幢101-103室
編碼朊病毒的遺傳信息,至少在細(xì)胞核的染色體基因中是相同的,,只是在多肽鏈形成后,,還要經(jīng)過(guò)一系列的修飾過(guò)程,一種可能是這些修飾過(guò)程中的一些過(guò)程出現(xiàn)錯(cuò)誤,,導(dǎo)致正常的蛋白質(zhì)空間結(jié)構(gòu)變異為異常的結(jié)構(gòu),。第二種可能是這一修飾過(guò)程也沒(méi)有出現(xiàn)錯(cuò)誤,,而是在正常的蛋白質(zhì)形成后,,由于外界因素導(dǎo)致了正常蛋白質(zhì)的變異,使之成為所謂的“朊病毒”,。所以我們可以把“朊病毒”定義為動(dòng)物(包括人類)細(xì)胞在正常的蛋白質(zhì)的生成過(guò)程中,,或正常的蛋白質(zhì)生成后,由于某一異常因素,,而導(dǎo)致了蛋白質(zhì)空間結(jié)構(gòu)變異所形成的,!由以上定義,我們繼續(xù)討論朊病毒的傳染性,。利用少量的“朊病毒”分子,,可以將大量的正常的蛋白質(zhì)變?yōu)?ldquo;朊病毒”,即少量變異的蛋白質(zhì)分子可以將正常構(gòu)型的蛋白質(zhì)變?yōu)樽儺惖姆肿?。這以結(jié)果解釋了為什么少量“朊病毒”能夠?qū)е聶C(jī)體的功能喪失,。從“朊病毒”的本質(zhì)來(lái)看,它是空間構(gòu)型改變的正常蛋白質(zhì),,是正常蛋白質(zhì)變性所致,。動(dòng)物體內(nèi)的蛋白質(zhì)種類非常的多,功能也有很大的差別,,每一種蛋白質(zhì)的變性都會(huì)導(dǎo)致其原有功能的喪失或減弱,。由于神經(jīng)系統(tǒng)的脆弱性,其某一蛋白質(zhì)組織的變性就可以造成整個(gè)系統(tǒng)很大的損壞,,從而導(dǎo)致疾病的發(fā)生,。迄今為止發(fā)現(xiàn),,并不是所有的朊蛋白都是危險(xiǎn)的。事實(shí)上,,它們存在于很多植物和動(dòng)物中,。正因?yàn)槿绱耍茖W(xué)家認(rèn)為這些變形的蛋白質(zhì)可能為它們的寄主帶來(lái)了一些好處,。這個(gè)假設(shè)在對(duì)一種特定的蘚類植物進(jìn)行研究的時(shí)候被證實(shí),。正常情況下,當(dāng)一個(gè)地方的蘚與另一個(gè)地方的蘚長(zhǎng)得足夠它們的外層細(xì)胞相互接觸時(shí),,病毒會(huì)從一個(gè)受感染的蘚的部分傳播到另一個(gè)沒(méi)有受感染的蘚的部分,。但是,朊蛋白似乎會(huì)繞到被感染的蘚的邊緣部分--這可以引起蘚邊緣部分的細(xì)胞死亡,,從而形成一個(gè)屏障,,阻止病毒穿過(guò),使蘚避免受到污染,。
Genetic information that encodes prions, at least in the chromosomal genes of the nucleus, is identical, except that after the polypeptide chain has been formed, it undergoes a series of modifications, one of which may be errors in some of these modifications leading to normal The spatial structure of protein changes to an abnormal structure. The second possibility is that there is no error in this modification process, but rather a normal "prion" after normal protein formation due to external factors that lead to a variation of the normal protein. So we can define "prion" as the animal (including human) cells in the normal process of protein production, or normal protein production, due to a certain abnormal factors, which led to the formation of protein spatial structure variation! By the above definition, we continue to discuss the prion contagious. With a small number of "prion" molecules, a large number of normal proteins can be turned into "prions", that is, a small number of mutant protein molecules can change the normally configured protein into a variant molecule. This results explain why a small amount of "prion" can cause the body's loss of function. From the nature of "prion", it is a normal protein with altered spatial configuration, which is caused by normal protein denaturation. There are many kinds of proteins in animals and their functions are very different. The denaturation of each protein will lead to the loss or decrease of its original functions. Due to the fragility of the nervous system, the denaturation of a certain protein organization can cause great damage to the whole system, leading to the occurrence of the disease. So far it has been found that not all prions are dangerous. In fact, they exist in many plants and animals. Because of this, scientists believe that these deformed proteins may provide some benefits to their hosts. This assumption is confirmed when studying a particular moss. Normally when a moss in one place grows enough for the moss in another place that their outer cells come into contact with each other, the virus can spread from the part of one infected moss to another part of the moss that is uninfected. However, prions appear to be around the marginal parts of infected moss - this can cause cell death in the marginal part of the moss, forming a barrier that prevents the virus from passing through, preventing the moss from becoming contaminated.