化学结构：OH-PEG-COOH分子的一端具有羟基（-OH），另一端具有羧基（-COOH），中间通过聚乙二醇（PEG）链连接。 分子量：可根据需求定制，常见的有400、600、1000、2000、3400、5000、10000、20000等。 外观：固体或粘性液体，具体状态取决于分子量。 溶解性：溶于大 ...

COOH-PEG-SH 羟基PEG羧基；OH-PEG-COOH 羟基PEG巯基；OH-PEG-SH返回搜狐，查看更多 平台声明：该文观点仅代表作者本人，搜狐号系信息发布平台，搜狐仅提供信息存储空间服务。

Vivek Ramaswamy launched his 2026 campaign for Ohio governor, taking another crack at elected office after his long-shot bid for the White House in 2024. “President Trump is reviving our ...

An Ohio Muslim civil rights leader condemned the government's crackdown on protests against the war in Gaza, including at Ohio State University, as a new report raises concerns about a nationwide ...

John Kopchick, Ph.D., Goll-Ohio Eminent Scholar, was awarded $2.35 million in federal funding to acquire state-of-the-art equipment essential for advancing cancer research and treatment at the Ohio ...

Sean O’Leary, a senior researcher for the Ohio River Valley Institute, said the planned project by SARTA and Enbridge would cut greenhouse gas emissions compared with current practices. “Green ...

Recent rainfall in the region has brought the Ohio River to a crest near Louisville. The river reached the highest level in several years. The Ohio River hit a crest of 28.3 feet Thursday ...

Ohio University delivers far more than a diploma. Every Bobcat knows this simple truth: the experiences you have at Ohio University will stay with you for life. This community will champion your ...

The Ohio State Buckeyes have had a lot of things happen since they won the national championship. Prior to the championship win, Ohio State saw quarterback Air Noland transfer to South Carolina.