2010 (1)
2016 (43)
2018 (45)
一般原理和製造
https://baijiahao.baidu.com/s?id=1688943245864945576&wfr=spider&for=pc
科興疫苗通過讓免疫係統學會產生針對SARS-CoV-2冠狀病毒的抗體來預防感染。為製造這種疫苗,研究人員先要從患者身上獲取新冠病毒樣本。隨後研究人員用猴子的腎細胞培養了大量的新冠病毒。然後他們把病毒泡在一種叫β-丙內酯的化學物質中,這種化合物通過與新冠病毒的基因結合使病毒失效。滅活的新冠病毒不能再複製。但它們的蛋白——包括刺突蛋白——仍然完好無損。然後,研究人員將滅活病毒取出,將它們與微量的鋁基化合物(一種佐劑)混合起來。佐劑刺激免疫係統,增強其對疫苗的響應。
製造過程原理在science上可以看到
https://science.sciencemag.org/content/369/6499/77?
Characterization of the SARS-CoV-2 vaccine candidate PiCoVacc.
(A) SARS-CoV-2 maximum likelihood phylogenetic tree. The SARS-CoV-2 isolates used in this study are depicted with black lines and labeled. Viral strains were isolated in infected patients who traveled from the continents indicated. (B) Growth kinetics of PiCoVacc (CN2) P5 stock in Vero cells. (C) Flowchart of PiCoVacc preparation. (D) Protein composition and purity evaluation of PiCoVacc by NuPAGE 4 to 12% Bis-Tris gel. (E) Representative electron micrograph of PiCoVacc. White scale bar 100 nm.