(–)-Cryptopleurine

基因传递利器 – 基因枪发展概况

基因枪的历史可以追溯到 1987 年。   第一代基因枪是台式基因枪，其中火药型台式基因枪是基因枪中最原始的类型。最早的基因枪是由美国康奈尔大学 Sanford 于 1987 年与该校工程技术专家 Wolf 及 Kallen 合作研究出的一种基因转移的新方法。该方法一经发明便在学界崭露头角，Klein 等人于 1987 年最早应用基因枪进行洋葱表皮细胞的转化，并获得了成功。   基因枪自 1987 年诞生以来得到迅速发展。美国康乃尔大学自 1988 年先后

Delivery Systems – An Overview

This is an overview of drug delivery systems (DDS), starting with various routes of drug administration. Various drug formulations, as well as devices used for drug delivery and targeted drug delivery, are then described. Delivery of proteins

Electrophoretic Separation and Immunoblotting of Aβ1–40and Aβ1–42

The main protein component of the plaques found in the brains of Alzheimer’s disease patients is Aβ, a peptide of 39 to 43 amino acids (reviewed in refs. 1 and 2). Two major Aβ isoforms have been identified in the brains of affected individuals