Hydrogels in drug delivery Control of drug release kinetics by hydrogel structure6, Release from stable hydrogels is controlled by diffusion of solute through the network Diffusion is described by Fick,s second law

Lecture 9: Polyelectrolyte Hydrogels Last Day: Physical hydrogels Structure and chemistry Toda polyelectrolyte hydrogels, complexes, and coacervates rolyte multilayer theory of swelling in ionic hydrogels Reading S.K. De et aL., 'Equilibrium swelling and kinetics of pH-responsive hydrogels: Models experiments, and simulations

Lecture 6: Biodegradable Polymers for Tissue Engineering Last time: enzymatic degradation of solid polymers Engineering biological recognition of polymers Toda Designing polymers for tissue engineering Reading

Lecture 7: Hydrogel Biomaterials: Structure and Physical Chemistry Last Day: programmed/regulated/multifactor controlled release for drug delivery and tissue engineering

Example: HIV-1 DNA vaccine delivered with boosters to elevate Ab titers2: Mechanical and electrical devices that can provide digitized release typically require larger devices and surgical implantation(e.g. Pharm. Res. 1, 237(1984); also have high cost

Lecture 3: Degradable Materials with Biological Recognition Last time: Theory of hydrolytic polymer erosion Enzymatic degradation of polymers Designing Biodegradable Macromolecules Today: Biological recognition in vivo Engineering biological recognition of biomaterials: cell adhesion/migration Reading: S.E. Sakiyama-Elbert and J.A. Hubbell, 'Functional Biomaterials: Design of Novel

Biological recognition in vivo Engineering biological recognition of biomaterials: adhesion/migration peptides Engineering biological recognition of biomaterials: enzymatic recognition and cytokine Reading S.E. Sakiyama-Elbert and J.A. Hubbell, Functional Biomaterials: Design of Novel

应变式高精度传感器是一个多变量系 统,非线性误差的影响因很多,这需要从传 感器的结构上去分析。应变式高精度传感器 一般有弹性元件,电阻应变片和测量电路三 大部分组成。工作原理用图表示如下

第一节人的生理特性 一、人的感知特性 1、人的感知反应过程 人机系统(见图3-1) 人的神经系统结构(见图2)

10.1概述 10.2插入排序 10.2.1直接插入排序 10.2.3 shell排序 10.3交换排序(快速排序) 10.4选择排序 10.41简单选择排序