Cross-flow filtration (CFF) also known as tangential flow filtration is not of recent origin. It began with the development of reverse osmosis (RO) more than three decades ago. Industrial RO processes include desalting of sea water and brackish water, and recovery and purification of some fermentation products. The cross-flow membrane filtration technique was next applied to the concentration and fractionation ofmacromolecules commonly recognized

The theoretical concepts underlying filtration can be applied towards practical solutions in the field. Comprehension of the basic principles is necessary to select the proper equipment for an application. Theory alone, however, can never be the basis for selection of a filter. Filtration belongs to the physical sciences, and thus conclusions must be based on experimental assay. It is, however, helpful in understanding why a slurry is more suitable for one design of filtration equipment than another

药理学研究药物与机体相互作用规律及其原理,是生物工程专业本科生的专业选修课。 本课程的教学目的是:通过教学使学生掌握药理学的基本理论和基本知识,着重培养学生的 自学能力、科学分析综合能力及科学思维方法。主要任务是:在着重讲述药效学、药动学等 药理学基本理论的基础上,简要阐述各类器官系统的常用药物及药理,使学生对药理学的概 貌具有比较全面的认识

The introduction of fluidfoil impellers, as shown in Fig. 9a through 9f, give a wide variety of mixing conditions suitable for high flow and low fluid shear rates. Fluidfoil impellers use the principles developed in airfoil work in wind tunnels for aircraft. Figure 10a shows what is desirable, which is no form separation of the fluid, and maximum lift and drag coefficients, which is what one is trying to achieve with the fluidfoil impellers. Figure 10b shows

Fluid mixing is essential in fermentation processes. Usually the most critical steps in which mixers are used are in the aerobic fermentation process. However, mixers are also used in many auxiliary places in the fermentation process and there are places also for agitation in anaerobic fermentation steps

A common problem for a biochemical engineer is to be handed a microorganism and be told he has six months to design a plant to produce the new fermentation product. Although this seems to be a formidable task, with the proper approach this task can be reduced to a manageable level. There are many ways to approach the problem of optimization and design of a fermentation process

Specific nutritional requirements of microorganisms used in industrial fermentation processes are as complex and varied as the microorganisms in question. Not only are the types of microorganisms diverse (bacteria, molds and yeast, normally), but the species and strains become very specific as to their requirements

摘要比较了5种固定弗劳地柠檬酸杆菌X05菌体的方法,其中明胶海藻酸钠包埋法为固定菌体的最佳方法。 扫描电子显微镜观察表明,XP05菌体较均匀地分布于包埋基质中。固定化XP05菌体吸附+受吸附时间、固定化菌体浓度、溶液的pH值和P起始浓度的影响。吸附作用是一个快速的过程;吸附A4+的最适pH值为1.5;在50 ~250mgp范围内,吸附量与起始浓度成线性关系,吸附过程符合 Langmuir和 Freundlich吸附等温模型

第1节 概述 1.1 生物材料的概念 1.2 生物材料的发展 1.3 生物材料的基本性能要求 1.4 生物材料的分类 第2节 生物材料的种类 2.1 金属生物材料 2.2 无机非金属生物材料 2.3 高分子生物材料 第3节 组织工程 3.1 组织工程基本概念 3.2 组织工程材料简介 3.3 组织工程材料应用 第4节 蛋白质和细胞在生物材料表面的吸附 4.1 蛋白质结构、性质及对材料表面的吸附 4.2 细胞表面及与材料的相互作用 第5节 蛋白质和细胞在生物材料表面的吸附

一、 生物医学工程的定义 二、 生物医学工程的特点 三、 生物医学工程的研究对象 四、 生物医学工程的发展 五、 中国生物医学工程的发展战略