FixationandEmbeddingofMicrotubulesforElectronMicroscopy
(This procedure can also be used for virtually any material that must be pelleted prior to fixation and thin sectioning)Primary fix:2% glutaraldehyde (from 25% or 10% stock) in microtubule assembly buffer.For better contrast of the tubulin, you can add 0.1-.5% tannic acid.Secondary Fix:0.5-1% OsO4 in the same buffer. OsO4 is kept in the refrigerator in a jar and is made as a 4% solution in water. It is very......阅读全文
Phase－Contrast－Microscopy
Phase Contrast MicroscopyPrincipleMost of the detail of living cells is undetectable in bright field microscopy because there is too little contrast b
Microscopy－with－Oil－Immersion
Microscopy with Oil ImmersionPrincipleWhen light passes from a material of one refractive index to material of another, as from glass to air or from a
Immunofluorescence－Microscopy－Protocol
实验概要Immunofluorescence allows the imaging of a specific factor in cells or tissue sections through the use of a specific antibody chemically which i
FIXATION－OF－PLANT－METAPHASE－CHROMOSOMES
Reagents (a) Metaphase arresting agents: Choose one of the following (Note 2) and shake vigorously to aerate before putting in living plant materi
Preparation－of－Segmented－and－Polarity－Marked－Microtubules
Preparation of Segmented and Polarity Marked Microtubules Segmented and polarity-marked microtubules are very useful for many different types of in vi
Preparation－of－Segmented－and－Polarity－Marked－Microtubules
Segmented and polarity-marked microtubules are very useful for many different types of in vitro assays. Segmented microtubules are microtubules with a
Fluorescence－Procedures－forthe－ActinandTubulin－Cytoskeleton－inFixed－Cells1
General StrategyWe typically work with tissue culture, primary mammalian cells, and cell extracts, but the protocols can be adapted to other systems,
Fluorescence－Procedures－forthe－Actin－andTubulin－Cytoskeleton－in－Fixed－Cells
Fluorescence Procedures for the Actin and Tubulin Cytoskeleton in Fixed CellsActin: Louise CramerTubulin: Arshad DesaiGeneral StrategyWe typically wor
Transmission－Electron－Microscope－(TEM)
所谓TEM，就是一个放大镜叠加了一台照相机。这台放大镜的放大倍数比较高，可高达一百万倍。当然，抛开分辨率谈放大倍数都是耍流氓，那么，TEM的分辨率有多高呢？答案是 it depends。一般来说，TEM的分辨率要在1到2个纳米，STEM更高，但是STEM得成像技术类似于SEM，但用的不是二次电子。我
细胞组分和细胞器——细胞器分离
Labeling Microtubules (Molecular Dynamics Inc. )Microtubules are involved in many aspects of cell motion including propulsion, mitosis, growth, and o
Immunofluroescence－Technique
Fix cells in 2% formaldehyde in PBS/pH 7.4 for 15 min. at 20oC. 2% formaldehyde is made up fresh prior to use by dissolving the appropriate amount of
固氮作用（nitrogen－fixation）
分子态氮被还原成氨和其他含氮化合物的过程。自然界氮（N2 ）的固定有两种方式：一种是非生物固氮，即通过闪电、高温放电等固氮，这样形成的氮化物很少；二是生物固氮，即分子态氮在生物体内还原为氨的过程。大气中90％以上的分子态氮都是通过固氮微生物的作用被还原为氨的。生物固氮是固氮微生物的一种特殊的生理功
Immunofluorescence－/－Confocal－Microscopy－Protocol
实验概要Immunofluorescence is a technique used for light microscopy with a fluorescence microscope and is used primarily on biological samples. This tec
Immunofluorescence－/－Confocal－Microscopy－Protocol
实验概要Immunofluorescence is a technique used for light microscopy with a fluorescence microscope and is used primarily on biological samples. This tec
组织学——组织制备
· Histological techniques (William H. Heidcamp)Very detailed guide to histological techniques, like fixation, dehydration, embedment and subs
Pathology－and－Autopsy－of－a－mouse
if mouse is found deadif mouse is a newborn or < 1 wk of ageIf mouse is alive or moribund and above one week of ageRoutine dissectionFormalin fixation
Ultraviolet－irradiation－impairs－epiboly－via－microtubules－in－Zebrafish
IntroductionZebrafish have transparentembryos that develop outside the mother. They develop rapidly, so that at 24 hours after fertilization, the embr
Flow－Cell－Assays－with－Microtubules:－Motility/Dynamics－in－Fluorescence
Flow cell assays are very useful for studying microtubule motility, microtubule dynamics, kinetochore-microtubule interactions and action of severing/
FIXATION－and－DNA－Staining－for－Cell－Cycle－Analysis
BackgroundThis method of DNA staining utilizes ethanol to fix the cells and permeabilize the membrane, which allows the dye (Propidium Iodide) to ente
Measurement－of－Carbon－Fixation－Rates－in－Leaf－Samples
Generation of a Light Curve To address the hypothesis concerning photosynthetic efficiency it is necessary to expose sun and shade leaves to a ran
常用无机材料分析方法
Elemental Analysis 元素分析Atomic absorption spectroscopy 原子吸收光谱Auger electron spectroscopy (AES) 俄歇电子能谱Electron probe microanalysis (EPMA) 电子探针微分析Electro
Silver:－TimeLapse－Microscopy
Pad Preparation1. Microwave 2% agarose (mix of low-melt and normal, to taste) in Thorn media (see below). (If you have used different percentages of a
Immunofluorescence－Microscopy－of－tissue－culture－cells
Immunofluorescence Microscopy of tissue culture cellsThese methods are written for direct staining of filamentous actin with bodipy FL-phallicidin and
Immunofluorescence－Labeling－of－Cells
实验概要Antibodies are an important tool for demonstrating both the presence and the subcellular localization of an antigen. Cell staining is a very ver
组织学——组织切片
· Histological techniques (William H. Heidcamp)Very detailed guide to histological techniques, like fixation, dehydration, embedment and subs
电化学石英晶体微天平研究生物膜的形成
IntroductionBiofilms are microbes attached to a surface. The microbes form a film on the surface, giving rise to the name biofilm. This Application N
电化学工作站：电化学石英晶体微天平研究生物膜的形成
Gamry电化学工作站：电化学石英晶体微天平研究生物膜的形成IntroductionBiofilms are microbes attached to a surface. The microbes form a film on the surface, giving rise to the na
显微镜技术——荧光显微技术
Immunofluorescencc Microscopy of tissue culture cells (Microscopy and Electronic Imaging Lab)These methods are written for direct staining of filament
SCI论文中怎样描述TEM结果？样品有怎样的形貌
鉴于有同学问我对于SCI论文写作这个部分的更新计划，我在这里稍微跟大家说一下。这个部分肯定不仅仅是列出一些常规实验结果如何描述这么简单。现在发的这些呢，只是一些基础准备。在将这些准备工作做完了之后，我们会按照论文的结构，对每个部分进行详细讨论，尽可能把我们这些年学到的有用的东西分享给大家，给大家提供
光合电子传递－（photosynthetic－electron－transport）
光合作用中，受光激发推动的电子从 H2 O到辅酶Ⅱ（ NADP ）的传递过程。光合色素吸收光能后，把能量聚集到反应中心——一种特殊状态的叶绿素 a分子，引起电荷分离和光化学反应。一方面将水氧化，放出氧气；另一方面把电子传递给辅酶Ⅱ（ NADP ），将它还原成 NADPH，其间经过一系列中间（电