AsepticTechniques
Aseptic techniques ensure that all cell culture procedures are performed to a standard that will prevent contamination from bacteria, fungi, mycoplasma and cross contamination with other cell lines. All work is done under a tissue culture hood. A movable glass panel or sash covers the face area of the tissue culture hood and acts as a physical barrier that helps to maintain a particulate-free environment and laminar ......阅读全文
Aseptic－Techniques
Aseptic techniques ensure that all cell culture procedures are performed to a standard that will prevent contamination from bacteria, fungi, mycoplasm
Principles－of－Aseptic－Technique
INTRODUCTIONThe regulations promulgated to implement the amended Animal Welfare Act require that all survival surgery be performed using aseptic proce
Principles－of－Aseptic－Technique——3
PREPARATION OF THE ANIMALThe animals should be prepared in a n area separate from where surgery will be performed. Preparation is facilitated by first
Principles－of－Aseptic－Technique——3
PREPARATION OF THE ANIMALThe animals should be prepared in a n area separate from where surgery will be performed. Preparation is facilitated by first
Principles－of－Aseptic－Technique——4
P REPARATION OF THE SURGEONIn a laboratory setting, the extent of surgeon preparation will depend on the facilities and the need for strict attention
Principles－of－Aseptic－Technique——2
PersonnelAseptic technique requires careful attention to a series of steps which begins with patient and instrument preparation and ends at final woun
Basic－Protein－Chemistry－Techniques
Coomassie Blue Stain: (for gels) 1) Combine 225 ml Methanol with 225 ml ddH2O. 2) Add 0.5 grams of Coomassie Blue. 3) Just before use, add 50 ml acet
Basic－Protein－Chemistry－Techniques
实验概要Basic Protein Chemistry Techniques实验步骤Coomassie Blue Stain: (for gels) 1) Combine 225 ml Methanol with 225 ml ddH2O. 2) Add 0.5 grams of Coomassi
Bleeding－and－intravenous－techniques－in－pigs
The ear veinsThe marginal ear veins are the only veins that are easily visible on pigs of any size. Usually there are three prominent veins. The later
Asepsis－and－Aseptic－Practices－in－the－Operating－Room
Preventing surgical site infection in the operating room is the primary goal of the surgical team, and all activities performed by the team support th
Guidelines－for－Aseptic－Rodent－Survival－Surgery
Introduction:Aseptic surgery is surgery performed without contamination or exposure to pathogens. These policies and guidelines are provided to help e
In－Vitro－Conservation－and－Cryopreservation－of－Ornamental－Plants
Today, the conservation of ornamental germplasm can take advantage of innovative techniques which allow preservation in vitro (slow growth storage
Aseptic－Technique－and－Good－Cell－Culture－Practice
AimTo ensure all cell culture procedures are performed to a standard that will prevent contamination from bacteria, fungi and mycoplasma and cross con
Asepsis－and－Aseptic－Practices－in－the－Operating－Room——2
Principle #4All items introduced onto a sterile field should be opened, dispensed, and transferred by methods that maintain sterility and integrity.2,
Yale－University－Policy－for－Aseptic－Amphibian－Survival－Surgery
Background: Aseptic surgery by definition is surgery performed without contamination or exposure to pathogens. According to the AWR's and the Guid
基本无菌化技术4
P REPARATION OF THE SURGEONIn a laboratory setting, the extent of surgeon preparation will depend on the facilities and the need for strict attention
Azalea－Phylogeny－Reconstructed－by－Means－of－Molecular－Techniques
Plants belonging to the Rhododendron subgenera Pentanthera (deciduous) and Tsutsusi and Azaleastrum (evergreen) are called azaleas. Concerning their m
Bleeding－and－intravenous－techniques－in－pigs2
Bleeding techniques for smaller pigsThis picture depicts the venous drainage in the neck of piglets.A: the cephalic vein. This drains into:B: the exte
TEM－Specimen－Preparation：Preparative－Techniques－for－the－TEM
For routine transmission electron microscopy (TEM), it is generally accepted that specimens should be thin, dry and contain molecules which diffract e
蛋白质组技术（Proteomic－Techniques）
一、研究材料1995年，Wasinger等在第一篇蛋白质组研究文章中研究的对象为目前已知最小但能自主复制的原核微生物——支原体Mycoplasma genitalium。1996年，研究对象即扩展到单细胞真核生物——酵母以及人体正常组织及病理标本[28]，进而突破了早期人们普遍认为的“蛋白质组研
电泳技术(electrophoretic－techniques)简介5
三、琼脂糖凝胶电泳法1.仪器装置电泳室及直流电源同纸电泳。2.试剂(1)醋酸－锂盐缓冲液(pH3.0)取冰醋酸50ml，加水800ml混合后，用氢氧化锂调节pH至3.0，再加水至1000ml。(2)甲苯胺蓝溶液取甲苯胺蓝0.1g，加水100ml使溶解。3.操作法(1)制胶取琼脂糖约0.2g，加水10
电泳技术(electrophoretic－techniques)简介4
各电泳法，除另有规定外，照下述方法操作。一、纸电泳法1.仪器装置包括电泳室及直流电源两部分。常用的水平式电泳室装置如图，包括两个电泳槽A和一个可以密封的玻璃(或相应材料)盖B；两侧的电泳槽均用有机玻璃（或相应材料）板C分成两部分；外格装有铂电极(直径0.5～0.8cm)D；里格为可放滤纸E的有机玻璃
电泳技术(electrophoretic－techniques)简介2
⒈材料与试剂 醋酸纤维素膜一般使用市售商品，常用的电泳缓冲液为pH8.6的巴比妥缓冲液，浓度在0.05-0.09mol/L。⒉操作要点⑴膜的预处理：必须于电泳前将膜片浸泡于缓冲液，浸透后，取出膜片并用滤纸吸去多余的缓冲液，不可吸得过干。⑵加样：样品用量依样品浓度、本身性质、染色方法及检测方法等因素决
电泳技术(electrophoretic－techniques)简介1
电泳法，是指带电荷的供试品（蛋白质、核苷酸等）在惰性支持介质（如纸、醋酸纤维素、琼脂糖凝胶、聚丙烯酰胺凝胶等）中，于电场的作用下，向其对应的电极方向按各自的速度进行泳动，使组分分离成狭窄的区带，用适宜的检测方法记录其电泳区带图谱或计算其百分含量的方法。电泳技术的基本原理和分类在电场中，推动带电质点运
电泳技术(electrophoretic－techniques)简介3
（三）等电聚焦电泳技术等电聚焦（isoelectric focusing，IEF）是60年代中期问世的一种利用有pH梯度的介质分离等电点不同的蛋白质的电泳技术。由于其分辨率可达0.01pH单位，因此特别适合于分离分子量相近而等电点不同的蛋白质组分。⒈IEF的基本原理 在IEF的电泳中，具有pH梯
Techniques:培养、鉴定、和16s测序
微生物识别和诊断的分子技术 依赖培养的方法太慢，于是可以使用一些分子信号，如核苷酸、蛋白质、代谢化合物。 16s rRNA gene PCR在诊断微生物方面广泛使用。PCR-based 方法更为敏感和定量化： 1.qPCR：对扩增进行定量。扩增时在特定的靶向探针上加上荧光染料，裂解后造成荧
基因克隆技术（Gene－Cloning－Techniques）2
二、目的基因和载体的连接获得目的基因后必须将其放在一定的载体内才能在宿主细胞内扩增或表达。目的基因与载体的连接及其后续的转化过程习惯上称为克隆（cloning）。由于目前很多基因都是利用PCR技术获得，因此这里先介绍PCR产物的克隆策略，然后再介绍其他的克隆方式。（一）PCR产物的克隆策略获得PCR
基因克隆技术（Gene－Cloning－Techniques）2
二、目的基因和载体的连接 获得目的基因后必须将其放在一定的载体内才能在宿主细胞内扩增或表达。目的基因与载体的连接及其后续的转化过程习惯上称为克隆（cloning）。由于目前很多基因都是利用PCR技术获得，因此这里先介绍PCR产物的克隆策略，然后再介绍其他的克隆方式。 （一
蛋白质分析技术(Analytical－Techniques－for－Protein)3
六、SDS-PAGE1.SDS及SDS-PAGE（1）SDS：十二烷基硫酸钠（sodium decyl sulfate，SDS），一种阴离子去污剂，它能以一定的比例和蛋白质结合，形成一种SDS—protein的复合物。（2）SDS- PAGE：具有SDS的PAGE，分离SDS—protein复合物，
蛋白质分析技术(Analytical－Techniques－for－Protein)2
二、透析和超滤1.透析（Dialysis）：就是利用蛋白质分子不能通过半透膜（Semipermeable membrane）而小分子可以自由透过的性质，使蛋白质与小分子物质分开。作用：脱盐、无机离子和小分子物质等。透析膜：动物膜、羊皮纸、火棉胶、赛璐玢或其他材料等。2.超滤（ultrafiltrat