Description
Properties
Item name | AgraQuant® Deoxynivalenol ELISA test |
---|---|
Storage temperature | 2°C - 8°C |
Quantitation range | 250-5000 ppb |
Limit of detection | 200 ppb |
Limit of quantitation | 250 ppb |
Materials supplied in the standard product
- antibody coated microwells in a microwell holder
- non-coated dilution microwells
- 5 vials of each deoxynivalenol standard
- 1 bottle of deoxynivalenol conjugate
- 1 bottle of substrate solution
- 1 bottle of stop solution
- 1 bottle of wash solution concentrate
Materials required but not supplied
- Romer Series II® Mill or equivalent
- balance
- 400 g
- blender or a tightly sealing jar with lid
- graduated cylinder: 100mL
- distilled or de-ionized water
- container for filtrate collection with minimum 125mL capacity
- Whatman#1 filter paper
- or equivalent
- filter funnel
- 8-channel and single channel pipettes capable of pipetting 100µL and 200µL with tips
- timer
- wash bottle
- absorbent paper towels
- 3 reagent boats for 8-channel pipettes
- microwell reader with a 450nm filter and an optional differential filter of 630nm or equivalent
Documents
ebiomall.com
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的抗体不容易染色,哪为同仁有这方面的经验?另外基因公司卖的cellsignalingtechnology的抗体要1875元,而中山公司卖的这个抗体只有800多,其中差距在哪里?请赐教
本人对软骨石蜡切片做了MMP-13的免疫组化染色,首次做,无法判断染色部位,请各位帮忙看一下
Bone Mesenchymal Stem Cells 作为一个细胞群体,还没有发现有特定细胞表面marker. 对于那些可以代表自我更新和分化的marker, 也不清楚到底要发现哪一个的表达才能确定该细胞就是BMSC。
目前常用的方法,就是采用培养,colony-forming unit-fibroblasts (CFU-F)这个方法。一般BMSC可以24-48小时贴壁。
流式细胞计数,比如STRO-1,但是一般认为STRO-1阳性的细胞更趋向于造血干细胞,和BMSC简单区别还不是很清楚。
这里有个培养分化的产品
http://www.rndsystems.com/pdf/SC020.pdf
GlucosestarvationcausestranslocationofAMPKβ2tothelysosomeinHEK-293cellsthatisdependentonN-myristoylation.Theexperimentwasperformedinβ2KOcellsasinFig.1c,exceptthatthelysosomalMarkerLAMP1(taggedwithRFP)wasco-expressedwiththewild-typeormutantAMPKβ2.Upperpanelsshowmergedimagesstainedblue(4′,6-diamidino-2-phenylindole(DAPI),nuclei),red(LAMP1,lysosomes)andgreen(AMPKβ2,detectedusingantibodyvalidatedine),incellsincubatedwithorwithoutglucosefor20 min.Lowersmallpanelsaremagnificationsoftheareasindicatedbydashedboxesintheupperpanels,showing(LtoR)redandgreenchannelsandmergedimages.
下面的这段话是图注,图注的意思我明白,但是我想知道merge后的图看什么颜色的荧光,蓝色是细胞核,红色是lysosome(位于胞质),绿色是AMPKβ2,该实验是想观察AMPKβ2是否转位到lysosome上了,如果确实发生了AMPKβ2转位到lysosome上,那么merge后是红色与绿色融合在一起,是吗?融合在一起发什么颜色的光了?
(2)另一方面,使抗原抗体结合更稳定。一般不需要,但对表达较弱的抗原可能有用,4度和37度时分子运动方式不同,前者分子碰撞机率和运动速度小于后者,后者结合更快,但敏感性也提高了并易造成非特异染色。
(3)其实,我更赞同后一种说法,因为我尝试把肝脏或睾丸片子从4度过夜拿出后,直接用PBS洗没发生过脱片现象。事实胜于雄辩!
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