Gao M, Liu Q, Xue Y, Li B, Liu X, Shi Z, Liu N, Zou X. Facile synthesis of peanut-like Sn-doped silica nano-adsorbent for affinity separation of proteins.
RSC Adv 2022;
12:4697-4702. [PMID:
35425506 PMCID:
PMC8981230 DOI:
10.1039/d1ra08362g]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/25/2022] [Indexed: 12/03/2022] Open
Abstract
A peanut-like hollow silica (denoted as p-l-hSiO2) adsorbent is prepared in a facile method, which is composed of several silica nanospheres and has an average diameter of 22 nm, with thickness of 5 nm. Its Brunauer-Emmett-Teller (BET) surface area, pore volume and pore size are 258.9 m2 g-1, 1.56 cm3 g-1 and 3.9 nm, respectively. Then the afforded p-l-hSiO2/GSH adsorbent is applied to purify glutathione S-transferases-tagged (denoted as GST-tagged) proteins. It is found that the p-l-hSiO2 adsorbent exhibits a specific adsorption, a high binding capacity (6.80 mg g-1), good recycling performance and high recovery (90.1%) to the target proteins, showing promising potential for the affinity separation of GST-tagged proteins.
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