NASA’s Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The ...

Nasa's Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The ...

Researchers develop a nickel catalyst that converts carbon dioxide to carbon monoxide with 99% selectivity by precisely ...

Scientists from Tabriz University and the University of Tabriz explored cellulose acetate-UiO-66-COOH as an affordable ...

NASA's Curiosity Rover has discovered long carbon chains on Mars. On Earth, molecules like these are overwhelmingly produced ...

We can’t say the molecules are the product of life, but the findings indicate if Mars had life billions of years ago, the ...

Disclaimer: The article contains content discussing sexual assault. Viewer’s discretion is advised. MONROE, La. (KTVE/KARD) — ...

结构组成：COOH-PEG-SH分子由聚乙二醇（PEG）链和两个末端官能团（羧基和巯基）构成。PEG链由重复的-CH₂CH₂O-单元组成，赋予分子良好的水溶性和生物相容性。 官能团特性： 羧基（-COOH）：是一种高反应活性的基团，能够与其他分子（如胺基、羟基等）发生酯化 ...

Corporate R&D Center, Momentive Performance Materials (India) Pvt. Ltd., Survey No. 09, Hosur Road Electronic City (West), Bangalore 560100, India ...

MPEG-TK-COOH由以下三部分组成： 甲氧基聚乙二醇（MPEG）：一种生物相容性极好的聚合物，常用于药物递送系统。MPEG通过甲氧基的修饰，赋予分子良好 ...