Centrifugation2
RELATIVE CENTRIFUGAL FORCE Figure F.2. Nomogram for R.C.F.Modern day ultracentrifuges can generate forces in excess of 300,000 times that of gravity, forces sufficient to overcome the very cohesion of most molecules (including the metal of the rotor). The force is usually given as some value times that of gravity.The centrifugal force is dependent upon the radius of the rotation of the rotor, the speed at which ......阅读全文
重组DNA的分离、克隆与测序实验手册8
B. Midiprep double-stranded DNA isolationA midi-prep double-stranded DNA isolation has been developed to generate a sufficient amount of template DNA
E.Z.N.A.™－Fastfilter－Plasmid－Mega－Protocol
实验概要The E.Z.N.A.™ family of products is an innovative system that radically simplifies extraction and purification of nucleic acids from a variety
BAC－DNA分离方法－Isolation－of－BAC－DNA－from－Largescale－Cultures
Isolation of BAC DNA from Large-scale CulturesJoseph SambrookPeter Maccallum Cancer Institute and The University of Melbourne, AustraliaDavid W. Russe
Probiotic－Attributes－of－Lactic－Acid－Bacteria－Isolates
IntroductionPresently the consumption of probiotic food is highly popular worldwide for their health beneficial effects. Commonly used probiotic bacte
Erythrophagocytosis
OUTLINEThe erythrophagocytosis assay is performed to compare the phagocytic rate with and without anti-eythrocyte antibody in either macrophages from
Separation－of－Platelets－from－Whole－Blood
PurposeThis protocol describes how to isolate human platelets from whole blood. Isolated platelets are used for static adhesion assays, for flow chamb
Preparation－of－tubulin2
DAY 2: Cycling preparation of MT protein.Keep the brains in an evacuated plastic ziplock bag buried in ice from the time of slaughter during transport
Preparation－of－human－platelets
Preparation of human platelets 1. Human blood was taken from drug-free volunteers on the day of the experiment using acidic citrate dextrose
Midiprep－preparation－of－Plasmid－DNA
实验概要The PureLink™ HiPure Plasmid DNA Midiprep Kit allows purification of 100–350 μg of high-quality plasmid DNA from 15–25 mL overnight E. coli cul
速率区带离心法－|你的分离纯化方法选对了吗？
密度梯度离心（isodensity centrifugation method）又称为区带离心。该方法的优点是可以同时使样品中几种或全部组分分离，具有良好的分辨率，分离效果好，可一次获得较纯组分。缺点是离心时间较长，需制备梯度液，操作要求高。按照离心分离原理，密度梯度离心又可分为速率区带离心法（ra
Subculture－of－Suspension－Cell－Lines
AimIn general terms cultures derived from blood (e.g. lymphocytes) grow in suspension. Cells may grow as single cells or in clumps (e.g. EBV transform
Extraction－of－DNA－using－DNAzol®－Reagent
实验概要DNAzol® Reagent (Genomic DNA Isolation Reagent) is a complete and ready-to-use reagent for the isolation of genomic DNA from solid and liquid sa
细胞组分和细胞器——细胞膜
Isoelectric Focussing of Membrane Protein by Slab Gel Method (Hancock Lab) Isolation of Outer Membrane Protein from P.Aeruginosa with Octyl-Poe (Hanc
Protocols－for－the－preparation－of－tumour－cells－for－s.c.－injections－in－mice
For the establishment of solid tumour in nude mice, tumour cells are treated in a sterile environment under a cell culturing hood. Disposable sterile
Protocols－for－the－preparation－of－tumour－cells－for－s.c.－injections－in－mice
For the establishment of solid tumour in nude mice, tumour cells are treated in a sterile environment under a cell culturing hood. Disposable sterile
RNA－Isolation－Protocol
Stabilize RNAStart with 15 ml E. coli Culture containing 7.5* 109 cells (OD600= 0.2 Dilute cells or scale up)Pipet 30 ml of RNAProtect Bacteria Reagen
细胞膜蛋白质提取方法
NRC Institute for Biological SciencesTriton X-114 extraction protocol (Hydrophobic protein preparation)Ressuspend cells in Solution A (dil 1/8) and ad
离心机5000转/10分钟会使细胞破碎吗
建议读下”Evaluation of Centrifugation Technique and Effect of Epinephrine on Fat Cell Viability in Autologous Fat Injection”这篇文献，最好不要超过5000RPM，一般来讲1000RPM
RNA－Isolation－Protocol
RNA Isolation Protocol(Revised 5-15-2003)Stabilize RNAStart with 15 ml E. coli Culture containing 7.5* 109 cells (OD600= 0.2 Dilute cells or scale up)
AntiDYKDDDDK－tag－(L5)－Affinity－Gel
实验概要Anti-DYKDDDDK tag (L5) affinity gel is a purified rat IgG2a, κ monoclonal antibody covalently attached to agarose by hydrazide linkage. It is us
Culturing－Human－Neural－Stem－Cells
实验概要Neural stem cells (NSC) are valuable resources because of their ability to differentiate into neurons and glial cells with applications in neur
速度离心法的技术特点
中文名称速度离心英文名称velocity centrifugation定 义根据被分离物质的体积差异在一定离心速度下沉降速度不同而分离的方法。应用学科细胞生物学（一级学科），细胞生物学技术（二级学科）
速度离心的概念
中文名称速度离心英文名称velocity centrifugation定 义根据被分离物质的体积差异在一定离心速度下沉降速度不同而分离的方法。应用学科细胞生物学（一级学科），细胞生物学技术（二级学科）
重组DNA的分离、克隆与测序实验手册
edited by Bruce A. Roe Judy S. Crabtreeand Akbar S. KhanDepartment of Chemistry and Biochemistry The Uni
Estimation－of－Fat－in－Milk－Samples
实验概要Milk fat measurement is a common task in the dairy industry, because milk fat content is one factor that determines milk price and is necessar
高速离心的概念
中文名称高速离心英文名称high speed centrifugation定 义一般指离心速度在18 000～35 000 r/min、离心力在60 000～100 000×g 范围的离心。应用学科生物化学与分子生物学（一级学科），方法与技术（二级学科）
高速离心的用途
中文名称高速离心英文名称high speed centrifugation定 义一般指离心速度在18 000～35 000 r/min、离心力在60 000～100 000×g 范围的离心。应用学科生物化学与分子生物学（一级学科），方法与技术（二级学科）
梯度离心的定义
中文名称梯度离心英文名称gradient centrifugation定 义在离心力场作用下样品中各组分会按照各自的特性沉降或上浮到梯度层相应的位置而被分离。应用学科生物化学与分子生物学（一级学科），方法与技术（二级学科）
低速离心的用途
中文名称低速离心英文名称low speed centrifugation定 义转速为8000 r/min以下，相对离心力为10 000×g以下的离心。主要用于分离细胞、细胞碎片及培养基残渣等颗粒物。应用学科生物化学与分子生物学（一级学科），方法与技术（二级学科）
连续流离心的定义
中文名称连续流离心英文名称continuous flow centrifugation定 义样品液在离心过程中连续导入，沉淀留在离心仓内，上清液不断排出的一种适于大规模制备的离心技术。应用学科生物化学与分子生物学（一级学科），方法与技术（二级学科）