由于其良好的生物相容性和可降解性，多糖还被广泛应用于生物材料的制造。例如，壳聚糖基质可以用来制作伤口敷料或药物载体系统；透明质酸则是皮肤填充剂和眼科手术的重要成分。

接着，利用多种层析技术，如DEAE-52阴离子交换柱层析和Sephadex G-200凝胶过滤层析，进一步提高了多糖的纯度。最后，通过HPLC分析，明确了PCPs-I的主要 ...

Scientists have known since the early 1960s that it was possible to 'persuade' mammalian cells to take up foreign DNA—the difficult part has been getting this to happen with any sort of ...

Follow this list to discover and track stocks that have set 52-week highs within the last week. This list is generated daily, ranked by market cap and limited to the top 30 stocks that meet the ...

Follow this list to discover and track stocks that have set 52-week lows within the last week. This list is generated daily, ranked by market cap and limited to the top 30 stocks that meet the ...

The man, 52, had strapped two lads, aged 17 and 20, across the front and back of his vehicle before driving them four miles to the cops. But instead of quizzing the pair on the alleged trespass ...

Maryland is off to one of its strongest starts in a decade and will look to ride that momentum to another win on Monday night ...

By Michael Saponara Brooklyn rapper Ka has died at 52 years old. Ka’s family released a statement to his Instagram on Monday (Oct. 14) revealing that the beloved rhymer — born Kaseem Ryan ...

We are in the process of updating our Market Data experience and we want to hear from you. Please send us your feedback via our Customer Center ...

12, his family confirmed in a statement to social media Oct. 14. He was 52. "We are heartbroken to announce the passing of Kaseem Ryan (1972-2024), the rapper and producer known as Ka," his family ...