NegativeStainElectronMicroscopyofMicrotubules
Negative staining is a rapid, qualitative method for analyzing microtubule structure at the EM level. Because negative staining involves deposition of heavy atom stains, structural artifacts such as flattening of the cylindrical microtubule and opening up of microtubules into flat sheets are common. Cryo-electron microscopy, where microtubules are flash frozen in a thin film of vitreous ice and imaged without stainin......阅读全文
Negative－Stain－Electron－Microscopy－of－Microtubules
Negative staining is a rapid, qualitative method for analyzing microtubule structure at the EM level. Because negative staining involves deposition of
Fixation－and－Embedding－of－Microtubules－for－Electron－Microscopy
(This procedure can also be used for virtually any material that must be pelleted prior to fixation and thin sectioning)Primary fix:2% glutaraldehyde
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
显微镜技术——电子显微技术
The Transmission Electron Microscope (TEM) (HEI)An explanation of how the TEM works. TEM Specimen Preparation (HEI) Serial Sectioning (Walter Steffe
Generic－Fixation－for－Electron－Microscopy
Generic Fixation for Electron MicroscopyThe best way to fix a sample for electron microscopy is to follow a procedure developed and proven by others.
Use－of－Transmission－Electron－Microscopy
Use of Transmission Electron MicroscopyOverviewA protocol describing the use of Zeiss EM9-S transmission electron microscopy is presented. MaterialZe
细胞组分和细胞器——细胞骨架
Fixation and Immunofluorescence of the Cytoskeleton (Mitchison Lab) Recycling Tubulin (Mitchison Lab) Labeling Tubulin and Quantifying Labeling Stoi
Tetrahymena－Fixation－for－Transmission－Electron－Microscopy
Tetrahymena Fixation for Transmission Electron MicroscopyPellet Tetrahymena cells in a clinical centrifuge.OPTIONAL: Suspend cells in HNMK (50 mM HEPE
Specimen－Preparation－for－Scanning－Electron－Microscopy
Specimen Preparation for Scanning Electron MicroscopyWe recommend consultation with one of the lab directors before preparing specimens. The methods p
Chlamydomonas－Fixation－for－Transmission－Electron－Microscopy
Chlamydomonas Fixation for Transmission Electron MicroscopySolutions:Chlamydomonas culture medium + 2% glutaraldehyde (5 ml medium + 0.9 ml 25% glutar
Preparation－Of－Ciliated－Protozoa－For－Scanning－Electron－Microscopy
Preparation Of Ciliated Protozoa For Scanning Electron MicroscopyGeneral notes: The same procedures are used to fix and stain cells for SEM and for TE
EPON－resin－mixture－for－transmission－electron－microscopy
EPON resin mixture for transmission electron microscopyFor Epon WPE 153:~120 ml~60 ml~30 mlMix A:Embed 81244 ml22.1 ml11.1 mlDDSA67 ml33.3 ml16.7 mlMi
免疫电镜(Immune－electron－microscopy)原理
（一） 原理免疫电镜技术是免疫化学技术与电镜技术结合的产物，是在超微结构水平研究和观察抗原、抗体结合定位的一种方法学。它主要分为两大类：一类是免疫凝集电镜技术，即采用抗原抗体凝集反应后，再经负染色直接在电镜下观察；另一类则是免疫电镜定位技术。该项技术是利用带有特殊标记的抗体与相应抗原相结合，在电子
免疫电镜(Immune－electron－microscopy)原理
（一） 原理 免疫电镜技术是免疫化学技术与电镜技术结合的产物，是在超微结构水平研究和观察抗原、抗体结合定位的一种方法学。它主要分为两大类：一类是免疫凝集电镜技术，即采用抗原抗体凝集反应后，再经负染色直接在电镜下观察；另一类则是免疫电镜定位技术。该项技术是利用带有特殊标记的抗体与相应抗原相结合，在电
透射电子显微镜(Transmission－electron－microscopy,－TEM)
透射电镜具有很高的空间分辩能力，特别适合纳米粉体材料的分析。其特点是样品使用量少，不仅可以获得样品的形貌，颗粒大小，分布以还可以获得特定区域的元素组成及物相结构信息。透射电镜比较适合纳米粉体样品的形貌分析，但颗粒大小应小于300nm，否则电子束就不能透过了。对块体样品的分析，透射电镜一般需要对样品进
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
Size－and－Shape－of－Protein－Molecules4
Determining the Molecular Weight of a Protein Molecule—Combining S and R s à la Siegel and MonteWith the completion of multiple genomes and increasing
High－resolution－negative－staining
High resolution negative staining(From Valentine et al, 1968. Biochemistry 7:2143-52)Rationale: For the highest resolution with negative staining, the
Size－and－Shape－of－Protein－Molecules5
Hydrodynamic Analysis and EM Applied to Large Multisubunit ComplexesThe text box above showed the application of the Siegel–Monte analysis to SMC prot
Size－and－Shape－of－Protein－Molecules5
Hydrodynamic Analysis and EM Applied to Large Multisubunit ComplexesThe text box above showed the application of the Siegel–Monte analysis to SMC prot
Viscosity－－Polymeriztion－of－Microtubules
LEVEL IIMaterialsTubulin (Brain extract from Exercise 9.4)GTPATPViscometerWaterbath or incubator at 37° CProcedureCompute the amount of GTP (M.W. 523)
TEM－Visualization－of－Microtubules
LEVEL IIMaterialsCoated grid for TEM0.1 M ammonium acetate5% ethanol saturated uranyl acetateTransmission electron microscopeProcedureAt the conclusio
Gram－Stain－(+\)
MaterialsColonies of bacteria from Exercise 12.2ToothpicksCrystal violetGram''s iodine95 ethanolSafraninMicroscopes with oil immersionProcedur
Gram－Stain－(+\)
实验概要细菌的革兰氏染色技术实验材料Colonies of bacteriaToothpicksCrystal violetGram's iodine95% ethanolSafraninMicroscopes with oil immersion实验步骤1. Before staini
Testing－for－Mycoplasma－by－Indirect－DNA－Stain－(Hoechst－33258－stain)
AimDNA staining methods such as Hoechst staining techniques are quick with results available within 24 hours, which compares favorably with 4 weeks fo
Light－Microscopy
The light microscope, so called because it employs visible light to detect small objects, is probably the most well-known and well-used research tool
Isolation－of－Microtubules－(Bovine－Brain)
LEVEL IIMaterialsFreshly removed bovine brain 2Wire sieve (tea strainer)Microtubule buffer (MT buffer)0.1 M MES (2-(N-Morphilino)ethanesulfonic acid)1
Size－and－Shape－of－Protein－Molecules1
Size and Shape of Protein Molecules at the Nanometer Level Determined by Sedimentation, Gel Filtration, and Electron MicroscopyAn important part of ch
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