Phosphate(Sodium)bufferChart
Phosphate (Sodium) buffer ChartStock solution A2 M monobasic sodium phosphate, monohydrate (276g/L)Stock solution B2 M dibasic sodium phosphate (284 g/L).Mixing an appropriate volume (ml) of A and B as shown in the table below and diluting to a total volume of 200 ml, a 1 M phosphate buffer of the required pH at room temperature. A B pH 92.0 8.0 0.890.0 10.0 5.987.7 12.3 6.085.......阅读全文
Magnetic－Depletion－of－SSEA4+－Undifferentiated－Embryonic－Stem－Cells
实验概要Human embryonic stem cells can be differentiated into neural-, mesenchymal and hematopoetic stem cells. This product is intended for the magneti
Rat－Lung－Perfusion
实验概要The procedure presented below describes a method for perfusing rat lung.主要试剂Phosphate Buffered Saline主要设备1.Dissecting Microscope or Eye Magnifier2
Use－an－IgG－antiIgM...
实验概要This method involves coupling an IgG anti-IgM antibody to protein A or G beads (see method below). These beads can then be used in the normal
RNAse－A－Treatment－of－Mouse－Cells
IntroductionRNAse A treatment of permeabilized cells followed by immunostaining is a method which allows to show if the localization of a protein into
磷酸盐缓冲液的基本内容介绍
PBS缓冲液，是生物化学研究中使用最为广泛的一种缓冲液，主要成分为Na2HPO4、KH2PO4、NaCl和KCl，一般作为溶剂，起溶解保护试剂的作用。由于Na2HPO4和KH2PO4有二级解离，缓冲的pH值范围很广，而NaCl和KCl主要作用为增加盐离子浓度。如有需要PBS还可以补加1 mmol
Immunohistochemistry－on－paraffin－embedded－sections
主要试剂1. Neutral-buffered Formalin, 10% (NBF), 1 liter (Commercially available pre-prepared from many laboratory reagent suppliers).Double -distilled H
双向电泳样品缓冲液(sample－buffer)选用的基本原则
1、蛋白质样品的特征：复杂，含盐或其他污染物易被蛋白酶降解动态范围宽（>X106）溶解性不均一（疏水性/亲水性）分子量、等电点的范围宽（10-500KDa，pH2-14）2、样品分离的基本要求：高灵敏度和分辨率宽动态范围小样品体积高通量合适的温度和pH避免蛋白酶降解适合与高灵敏度的质谱联用尽量少的操
分光光度计测定溶液的吸光值
蛋白质纯化实验中，将会测定 b-glucuronidase （GUS） 的活性，是利用 p-nitrophenyl b-D-glucuronide 为基质，加入酵素反应后所释出之 p-nitrophenol 在碱性下呈现黄色，可测定 415 nm 之吸光度，利用 Beers Law 即可
免疫细胞化学常用试剂
一、固定剂 1、4%多聚甲醛-0.1mol/L磷酸缓冲液（pH7.3） 2、4%多聚甲醛-磷酸二氢钠/氢氧化钠 3、Bouin's液及改良Bouin’s液 4、Zamboni’s（Stefanini‘s）液 5、PLP液 6、Karnovsky's液（pH7.3） 7、0
Assay－of－Tyrosine－Kinases－Using－Synthetic－Peptides
实验概要 Small synthetic peptide substrates are especially well suited for applications such as assays of tyrosine kinases in permeabilized cel
Permeabilization－of－gramnegative－bacteria－with－KPi/hexane
Harvest (10,000 rpm for 5 min) 24 h grown (in LB pH 7.5, 37 oC, 200 rpm) Escherichia coli, Enterobacter aerogenes or Pseudomonas aeruginosa cells.Wash
DAPI－Counterstaining－Protocols
实验概要The blue-fluorescent DAPI nucleic acid stain preferentially stains dsDNA; it appears to associate with AT clusters in the minor groove. Binding
Staining－Procedure－for－Flow－Cytometric－Detection－of－Human－Cyclins
Staining Procedure for Flow Cytometric Detection of Human CyclinsThis is a standard protocol used at Pharmingen for Quality Control testing of the ant
ELISA－with－Platelet
OUTLINEThis modification of qualitative ELISA (Enzyme-Linked Immunosorbent Assay) is used for either screening detection of anti-platelet antibodies o
Preparing－cells－and...
实验概要The method provides a protocol and tips for BrdU staining in tissue sections.Bromodeoxyuridine (5-bromo-2-deoxyuridine, BrdU) is a synthetic
Identification－of－a－Mutant－Kinase/ATP－Analog－Pair1
Identification of a Mutant Kinase/ATP Analog PairScott T. Eblen, N. Vinay Kumar, and Michael J. WeberDepartment of Microbiology and Cancer Center, Uni
DNA－Extraction－from－Tissue
实验概要DNA extraction from tissue.主要试剂Extraction buffer100 mM Tris-HCl (pH 8.0) 100 mM EDTA (pH 8.0) 100 mM Na-Phosphate (pH 8.0) 1.5 M NaCl1% CTAB
HISTONE－KINASE－ASSAY
PROTOCOLTo 1.5 mL eppendorf tubes add:200 µg of protein extract (see Western blot protocol for protein sample preps)q.s. to 300 µL with RIPA (with pro
以酶联免疫反应与碱性去磷酸酶呈色反应侦测杂合讯息
进行杂合反应时所使用的探针若为放射性物质所标定者，杂合讯息可经由放射显影术 （autoradiography） 侦测出来；若为DIG所标定者，则需借助anti-DIG抗体与碱性去磷酸酶 （alkaline phosphatase, AP） 的conjugate,并利用碱性去磷酸酶的酵素活性转
以酶联免疫反应与碱性去磷酸酶呈色反应侦测杂合讯息
以酶联免疫反应与碱性去磷酸酶呈色反应侦测杂合讯息 进行杂合反应时所使用的探针若为放射性物质所标定者，杂合讯息可经由放射显影术 (autoradiography) 侦测出來；若为DIG所标定者，则需借助anti-DIG抗体与碱性去磷酸酶 (alkaline phosphatase, AP) 的
RNAi－protocol
siRNA protocolsOur current strategy with siRNA is to synthesis relatively small amounts enzymatically and use these to test for efficiency by western
DAPI－Nucleic－Acid－Stain
实验概要The blue-fluorescent DAPI nucleic acid stain preferentially stains dsDNA; it appears to associate with AT clusters in the minor groove. Binding
NAi－protocol
siRNA protocolsOur current strategy with siRNA is to synthesis relatively small amounts enzymatically and use these to test for efficiency by western
Immunohistochemistry－Protocol－for－Frozen－Sections
实验概要The following is a general procedure guide for preparation and staining of acetone-fixed frozen tissues using a purified, unconjugated primary
Immunohistochemistry－Protocol－for－Frozen－Sections
实验概要The following is a general procedure guide for preparation and staining of acetone-fixed frozen tissues using a purified, unconjugated primary
CD2的纯化－Purification－of－CD2
Purification of CD21) Cells are pelleted (~3 - 4000 g for 10 min.) and resuspended in pre-chilled 50 mM malonate (pH 5.2-5.3) with 1mM EDTA (~40ml of
MetalEnhanced－Immu...－（一）
实验概要The surface-confined assay format is one of the most convenient detection formats used in many immunoassays. Fluorescence emission from monola
关于PBS缓冲液的基本信息介绍
PBS缓冲液，是生物化学研究中使用最为广泛的一种缓冲液，主要成分为Na2HPO4、KH2PO4、NaCl和KCl，一般作为溶剂，起溶解保护试剂的作用。由于Na2HPO4和KH2PO4有二级解离，缓冲的pH值范围很广，而NaCl和KCl主要作用为增加盐离子浓度。如有需要PBS还可以补加1 mmol
细胞ELISA操作步骤
Cellular ELISA ProtocolFormalin Fixed Cell Plates1. Trypsinize confluent flasks2. Pool and count cells3. Centrifuge at 1500 rpm for 10 minutes4. Resus
5G时代带动陶瓷PCB成长——GPS陶瓷天线调试方法－（二）
2.2开槽Slot-Y 切削Slot-Y位置，在Smith Chart 上可看出其轨迹图会以外圈为圆心，依顺时针的方向旋转偏向电容性阻抗。需要特别注意的是切削Slot-Y位置，原则上左右两边都开槽会对天线轴比影响较小，另外开槽深度越靠近馈点位置，图形运动的幅度越大。 图