AmiconStirredUltrafiltrationCells
DescriptionFor protein concentration, gas pressure is applied directly to ultrafiltration cell. Solutes above the membrane's molecular weight (MW) cut-off are retained in cell, while water and solutes below the cut-off pass into the filtrate and out of cell. 80508400Cell capacity (ml) Stirred minimum volume¹ (ml) Membrane diameter (mm) Effective membrane area (cm ²) Hold-up volume² ......阅读全文
Amicon－Stirred－Ultrafiltration－Cells
DescriptionFor protein concentration, gas pressure is applied directly to ultrafiltration cell. Solutes above the membrane's molecular weight (MW)
Amicon®－Pro蛋白纯化浓缩操作指南
蛋白从克隆表达到纯化脱盐浓缩，一路经过千山万水，宝贵的活性蛋白产量是很多人的“命根子”。然鹅，努力的我们还是苦恼的时候多，欣喜的时候太少太少～～ 纯化黑科技，是时候放大招了 有没有什么好方法能让操作步骤少一点、再少一点，而同时蛋白的活性及产量损失也少一点、再少一点？？ 让我们看看那些蛋白操作高手的
超滤法（ultrafiltration）分离明胶蛋白水溶液
一、实验目的1.熟悉超滤的基本原理、板式超滤器的结构及基本流程2.了解超滤过程中的影响因素如温度、压力、流量及物料分子量等因素对超滤通量的影响3.了解超滤器污染的原因及其对策 二、实验原理 超滤的技术原理近似机械筛分。当溶液体系由水泵进入超滤器时，在超滤器内的膜表面发生分离，溶剂（水）和其他
Culture－of－BEND－Cells－(Bovine－Endometrial－Cells)
Culture of BEND Cells (Bovine Endometrial Cells)Charles E. Krininger, III and Peter J. Hansen Dept. of Animal Sciences, University of FloridaThis prot
Differentiate－ES－cells－into－glial－cells－and－neurons
Day -1: Pass ES cells at normal density on gelatinized plate to free the culture of contamination fibroblast cells.___________________Day 1: Trypsiniz
Differentiating－Neural－Stem－Cells－into－Neurons－and－Glial－Cells
实验概要The protocols in this section describe the steps involved in differentiating neural stem cells (NSC) to neurons, astrocytes, and oligodendrocyte
Growing－cells
No two cell lines behave exactly the same, so you must learn the peculiarities, or personality, of each of the cell lines with which you work. Irrespe
Trypsinizing－cells
There are many procedures with which to trypsinize cells. All include washing the cell monolayer with TD, or in rare cases, with VE. This removes seru
Lyophilizing－Cells
Inoculate 200 ml L-broth supplemented with appropriate antibiotics with the bacteria to be lyophilized.Incubate the culture at 37°C with vigorous shak
Lyophilizing－Cells
Lyophilizing CellsInoculate 200 ml L-broth supplemented with appropriate antibiotics with the bacteria to be lyophilized.Incubate the culture at 37°C
Freezing－Cells
1) Keep prepared solutions on ice.2) Determine total cell count of cells to be frozen. (e.g. 1 X 108 )3) Determine number of vials to be frozen. (e.g.
通过RNAi使基因特异性沉默
RNA interference (RNAi) is a phenomenon in which the introduction of double-stranded RNA (dsRNA) into a diverse range of organisms and cell types caus
Collection－of－Peritoneal－Cells
Prepare a 10ml syringe fitted with a 26G short needle and filled with 5 to 7 ml of medium and 2 to 3 ml of air. Air is important.Prepare a Pasteur pip
Subculturing－Adherent－Cells
实验概要The following protocol describes a general procedure for subculturing adherent mammalian cells in culture.主要试剂1. Complete growth medium, pre-warme
Electroporation－of－ES－cells
Cells are routinely passaged two days prior to electroporating. Usually one 10 cm plate at approximately 80% confluency will provide enough cells for
Isolation－of－papillary－cells
Isolation of renal papillary cells1. For isolation of papillary cells, kidneys were harvested and kept in HBSS containing 15 mM HEPES, penicillin/
Transfecting－Suspension－Cells
实验概要将转移基因整合到细胞染色体DNA上,形成稳定表达转移基因的细胞系。 实验原理 细胞转染技术是目前广泛应用于病毒基因结构与功能以及基因调控等的研究。细胞转染可分为短暂转染和稳定(或永久) 转染两种。在短暂转染中,被转染基因并不整合至细胞染色体中,因而不能随细胞分裂而传代。转入病毒基因的转
Preparing－cells－and...
实验概要The method provides a protocol and tips for BrdU staining in tissue sections.Bromodeoxyuridine (5-bromo-2-deoxyuridine, BrdU) is a synthetic
Freezing－and－Thawing－cells
Freezing and Thawing cellsFreezingIt is best to freeze cells that are growing rapidly. With adherent cells, it is easiest to set up 100 mm dishes, giv
Fluorescent－Staining－of－Cells
1. Fluorescent phalloidin in methanol. Phallacidin does not work as well. Dilute 10 ul 330 nM stock into 500 ul PBS for each large coverslip.2. PB
Collection－of－Peritoneal－Cells
Prepare a 10ml syringe fitted with a 26G short needle and filled with 5 to 7 ml of medium and 2 to 3 ml of air. Air is important.Prepare a Pasteur pip
Isolation－of－papillary－cells
实验概要This protocols provides a general protocol for isolation of papillary cells.实验步骤Isolation of renal papillary cells1. For isolation of papillary c
KARYOTYPING－ES－CELLS
An actively growing culture of cells is required, i e 2 - 3 d ES cell culture. The total number of cells needs to be between 106 - 107 cells.N B Read
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
Isolation－of－human－colonic－epithelial－cells－(EC)
1.Human colonic epithelial cells (EC) were isolated from freshly resected colonic surgical specimens obtained. 2.All diagnoses were confirmed by clini
Routine－Splitting－and－freezing－of－cells
1. Grow cells to subconfluence in a flask.2. Harvest as per normal and count.3. Spin down 5min 1.2K in benchtop. Resuspend at 1.0 X 106/ml in 10% DMSO
Freezing－cells－in－liquid－nitrogen
Take off MediaTrypsinate with 1ml x2 Dulbecco A trypsinAdd 7ml MediaPipette up and down to distribute cells throughout media (i.e. not clumped togethe
Cryopreserving－Neural－Stem－Cells
实验概要There are numerous protocols available for cryopreserving neural stem cells (NSCs) derived from human embryonic stem cells; the primary objectiv
Culturing－HEK－293－Cells
ReagentsMedium:500 ml Dulbecco’s Modified Eagle Medium (Gibco #41966-029)55 ml FCS (10 %)2.8 ml Gentamycin Solution (Sigma G-1272, 10 ml))TrypsinTryps
Isolation－of－lymphatic－endothelial－cells
Dermal Cell Suspensions 1. Dermatomed 0.8-mm split-thickness skin was obtained from adult healthy individuals undergoing elective surgery. 2