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......閱讀全文
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
顯微鏡技術——電子顯微技術
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
細胞組分和細胞器——細胞骨架
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
免疫電鏡(Immune－electron－microscopy)原理
（一）? 原理免疫電鏡技術是免疫化學技術與電鏡技術結合的產物，是在超微結構水平研究和觀察抗原、抗體結合定位的一種方法學。它主要分為兩大類：一類是免疫凝集電鏡技術，即采用抗原抗體凝集反應后，再經負染色直接在電鏡下觀察；另一類則是免疫電鏡定位技術。該項技術是利用帶有特殊標記的抗體與相應抗原相結合，在電子
免疫電鏡(Immune－electron－microscopy)原理
（一）??原理?免疫電鏡技術是免疫化學技術與電鏡技術結合的產物，是在超微結構水平研究和觀察抗原、抗體結合定位的一種方法學。它主要分為兩大類：一類是免疫凝集電鏡技術，即采用抗原抗體凝集反應后，再經負染色直接在電鏡下觀察；另一類則是免疫電鏡定位技術。該項技術是利用帶有特殊標記的抗體與相應抗原相結合，在電
透射電子顯微鏡(Transmission－electron－microscopy,－TEM)
透射電鏡具有很高的空間分辯能力，特別適合納米粉體材料的分析。其特點是樣品使用量少，不僅可以獲得樣品的形貌，顆粒大小，分布以還可以獲得特定區域的元素組成及物相結構信息。透射電鏡比較適合納米粉體樣品的形貌分析，但顆粒大小應小于300nm，否則電子束就不能透過了。對塊體樣品的分析，透射電鏡一般需要對樣品進
顯微鏡技術——熒光顯微技術
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－(+\)
實驗概要細菌的革蘭氏染色技術實驗材料Colonies of bacteriaToothpicksCrystal violetGram's iodine95% ethanolSafraninMicroscopes with oil immersion實驗步驟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