一种新的做分子互作的技术英文简写是BLI,哪位大侠知道?这个技术怎么样?,bilibili怎么看直播...
一种新的做分子互作的技术英文简写是BLI,哪位大侠知道?这个技术怎么样?
BLI(BIO-LAYER INTERFEROMETRY)技术,即生物膜层表面干涉技术进行精确检测。此技术用光纤制成的生物传感器底端覆盖了生物分子相容层,用来固定相互作用分子中的一个,形成生物膜层。相互作用发生时,生物层厚度增加,反射光干涉光谱曲线整体向波长增加方向移动。分子结合或解离时,都会导致干涉曲线的漂移。
应用:
在抗体筛选,抗体浓度测定,抗体纯度测定,抗体生产条件,细胞培养条件以及生物反应器条件优化方面有广泛的应用需求,同时在文库筛选,配体或者受体筛选,抗体筛选,抗体性质,配体垂调,瞬时结合等方面也有广泛的应用需求,应用于生命科学、医疗检测、药物筛选、食品检测等领域
特点:
毋需标记:不用对待测样品作任何标记和修饰,直接准确
高通量,实时快速检测:一次同时做8个检测,每检测8个样品点只需0.2秒,最多可以自动完成96个检测
操作简单,分析速度快:动力学分析每个样本约需5MIN;定量分析分析时间: 8个样品分析时间<2MIN,96个样品分析时间<30MIN
准确度高: CV<10%,根据具体实验而定
样本范围广:能直接检测有色的或不透明的样品,比如血清、细胞裂解液、细菌、细胞培养液,组织匀浆等混合物而不影响灵敏度和准确性
定量范围:0.5UG/ML - 2000UG/ML
动力学范围:结合速率常数(KA):101-107 M-1S-1
解离速率常数(KD):10-6-10-1 S-1
亲合力范围:10-3-10-12M
非微流体形式,几乎不需要后期维护
BLI TECHNOLOGY
Bio-Layer Interferometry (BLI) is a label-free technology for measuring biomolecular interactions. It is an optical analytical technique that analyzes the interference pattern of white light reflected from two surfaces: a layer of immobilized protein on the biosensor tip, and an internal reference layer (Figure 1). Any change in the number of molecules bound to the biosensor tip causes a shift in the interference pattern that can be measured in real-time (Figures 1 and 2).
The binding between a ligand immobilized on the biosensor tip surface and an analyte in solution produces an increase in optical thickness at the biosensor tip, which results in a wavelength shift, Δλ (Figure 3), which is a direct measure of the change in thickness of the biological layer. Interactions are measured in real time, providing the ability to monitor binding specificity, rates of association and dissociation, or concentration, with precision and accuracy.
Only molecules binding to or dissociating from the biosensor can shift the interference pattern and generate a response profile on the Octet System. Unbound molecules, changes in the refractive index of the surrounding medium, or changes in flow rate do not affect the interference pattern. This is a unique characteristic of BLI and extends its capability to perform in crude samples used in applications for protein:protein binding, quantitation, affinity, and kinetics.
Key Benefits of BLI
Label-free detection
Real-time results
Simple and fast
Improves efficiency
Crude sample compatability
Figure 1
Figure 2
Figure 3
bilibili怎么看直播
打开哔哩哔哩APP并选择上方【直播】,接着在【推荐直播】中找一个你喜欢的直播间,点进去就可以看直播了。 以安卓手机系统为例,bilibili在手机上直播方法如下: 1、打开手机桌面,找到bilibili图标,点击进入。 2、进入bilibili界面后,在界面左上角找到头像图标,点击进去。 3、进入头像图标后,出现以下界面,下拉找到”直播中心“,点击进去。 4、进入直播中心后,出现以下界面,bilibili已开通直播号的,可以直接去”我的直播间“进行直播;bilibili如还没有开通直播号,先去申请直播号,申请通过后,再返回直播间进行直播。 5、对于未开通直播号的,按照以下步骤去申请直播号,申请通过后,就可以用手机去直播间直播了。
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