USEOFTHELIGHTMICROSCOPE
USE OF THE LIGHT MICROSCOPEEach time the microscope is to be used it should be set up correctly to give a good image. Most often users forget to adjust the iris diaphragm and focus the condenser to give its optimum performance, this could result in objects in the preparation being undetected.There are many microscope set up procedures for specific functionality but the most versatile for general use is ‘Critical Illu......阅读全文
Quantitative－PCR
实验概要Quantitative PCR involves co-amplification of two templates: a constant amount of a preparation containing the desired target sequence and var
Using－a－Counting－Chamber
Using a Counting ChamberFor microbiology, cell culture, and many applications that require use of suspensions of cells it is necessary to determine ce
Preparing－Lambda－DNA
Preparing Lambda DNA1- Coliphage lambda DNA is a widely used vector for recombinant DNA. The middle third of its 48,000 bp contains no genes required
Plasma－and－Serum－Preparation
实验概要Serum is the liquid fraction of whole blood that is collected after the blood is allowed to clot. The clot is removed by centrifugation and the
UV－Absorbance－(280－nm)－－–－Protein－Determination
UV Absorbance (280 nm) – Protein Determination Simple and quick method to accurately quantitate total protein in purified material or approximately q
A－quick－RNA－miniprep－for－Neurospora－mycelial－cultures
Most RNA isolation techniques currently in use have been developed for the processing of large quantities of material. These typically involve multipl
20点直播｜德克萨斯大学教授讲述纳米材料化学
原文地址：http://news.sciencenet.cn/htmlnews/2023/6/503379.shtm 直播时间：2023年6月23日（周五）20:00-21:30 直播平台： 科学网APP （科学网微博直播间链接） 科学网微博 科学网视
Blood－collection－and－administration－of－fluids－and－drugs－(mouse)2
Intraperitoneal:Equipment: Syringe and 23 to 27 g, 1/2 to 1-inch needle, preferably with a short bevel.Volume: The volume injected IP into an adult mo
SSR－GEL－and－Silver－Staining－Protocol
I. EQUIPMENT:DNA sequencing unit (35 x 45 cm) & 2000V power supplyClampsLg. plastic trays (4), about 43 x 50 x 8 cm, and one lidTwo rocking platformsH
Combined－Flow－Cytometric－Measurement－of－Two－CellSurface－Antigens2
DNA and RNA Staining6. Stain cells with 7-AAD: i. Resuspend the cells from Step 5 in 0.5 mL of NASS containing 10 µg/mL of 7-AAD. Incubatefor 20 min a
DIY阿尔法谱仪（二）
The reason for the exponential decay is the resistance that is placed in parallel to the feedback capacity. This solution is necessary so that the
Agrobacterium－growth－and－transformation
Growth and storage of Agrobacterium tumefaciensStrain GV3101: resistant to gentamycin and rifampicin so add 25-50 ug/ml Gentamycin, 10 ug/ ml rifampic
JC1分析线粒体膜电位的方法
Analysis of Mitochondrial Membrane Potentialwith the Sensitive Fluorescent Probe JC-1 Andrea Cossarizza and Stefano Salvioli Department of Biomedical
Multicolour－3DFISH－in－vertebrate－cells4
DetectionThe choice of the detection scheme depends on several factors: (i) the number of haptens and fluorochromes used for probe labeling; (ii) the
ex－vivo－expanded－endothelial－progenitor－cells
Cell Culture. 1. Total hPBMCs were isolated from blood of human volunteers by density gradient centrifugation. 2. Cells were plated on culture dishes
如何借助epMotion－5073l移液工作站完成微量体积的...（一）
如何借助epMotion 5073l移液工作站完成微量体积的qPCR反应体系构建在进行微量体系的液体操作时，如何避免人为误差与日间变化，如何保证结果的一致性提高实验效率？如果减少冗长枯燥的重复操作，减少昂贵试剂的使用，提升操作体验节省实验经费？本篇应用旨在介绍如何用10 μL分液工具实现全自动的微量
寡核苷酸的相关操作
In this section, you will find techniques related to oligonucleotides, such as oligo purification by acrylamide gel, annealing two oligos to make doub
生化培养箱循环系统是怎样工作的及原理
生化培养箱循环系统：有高速(gāo sù)循环风机（Draught Fan）、风道等组成。生化培养箱广泛适用于环境保护、卫生防疫、药检、农畜、水产等研究、院校、生产部门、是水体分析和BOD测定，细菌、霉菌、微生物的培养、保存、植物栽培、育种实验的专用恒温设备。厌氧培养箱是一种可在无氧环境下
激光散射仪ALV/CGS3简要操作规程
1 接通电源，打开计算机。开激光，稳定30分钟至一小时。2 开相关器。打开测量软件 ALV－7004 Correlator software. 仪器开始自检，转臂定位于25度角。3 在 File 栏可以打开或储存文件，如果做连续的多次测量可选择文件自动存储，点set autosave, 选择 use
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
Isolation,－Culture,－Characterization－of－Cortical－and－Hippocampal－Neurons
实验概要The ability to culture primary neurons under serum-free conditions facilitates tighter control of neuronal studies. Some serum-free media and s
Yeast－Nuclei－Isolation
This method gives yeast nuclei which look nearly purified microscopically. Nuclei isolated in this way do not give active transcription extracts when
led光源的术语（一）
Image(Lighting)Contrast The ratio of difference between light and dark as shown on a screen. The change of contrast level refers to 'tone'.
ELECTRON－MICROSCOPY
E.M. PROCESSING SCHEDULE - EPOXY RESINFix tissue in 2.5% glutaraldehyde in 0.1M sodium cacodylate buffer at 4oC, for a minimum of 4 hours. Tissue shou
从棉花组织中提取微量RNA的标准实验方法protocol
Prior to Extractions ・ Bake all necessary glassware, metal spatulas, mortars, and pestles overnight in a 200℃ oven after wrapping them in aluminum f
Western－blotting样品准备－（二）
Sodium orthovanadate preparationAll steps to be performed in a fume hood. a. Prepare a 100 mM solution in double distilled water. b.
分子克隆蛋白表达实验指南（十三）
7． 电泳结束后，按比例从胶上割下相应约1cm条带（当按比例的条带割下后可相应的向两边再割一点，但是电透析时中间和两边的胶必须分开透析），用镊子或尺子将胶碾碎成2mm见方的小块。 8． 将碎块小心加入电透析tube中，200V，120～150min。 9． 移出放电透析tube的架子，
Immunofluorescent－Staining－of－Drosophila－Larval－Brain－Tissue
INTRODUCTIONThe Drosophila larval brain is a well-established model for investigating the role of stem cells in development. Neuroblasts (neural stem
激光扫描共聚焦原理和样品前期处理
1、激光扫描共聚焦显微镜用途 激光扫描共聚焦显微镜（Confocal laser scanning microscope，CLSM)是近代最先进的细胞生物医学分析仪器之一。目前，激光扫描共聚焦显微技术已用于细胞形态定位、立体结构重组、动态变化过程等研究，并提供定量荧光测定、定量图像分析等实用研