Rapid Capture and Release of Nucleic Acids through a Reversible Photo-Cycloaddition Reaction in a Psoralen-Functionalized Hydrogel.

Rapid Capture and Release of Nucleic Acids through a Reversible Photo-Cycloaddition Reaction in a Psoralen-Functionalized Hydrogel.
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DOI:
10.1002/anie.201711441
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发表时间:
2018-02-23
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Herr AE
Herr AE
中科院分区:
其他
文献类型:
--
作者:
Zhang Y;Chan PPY;Herr AE

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Reversible immobilization of DNA and RNA is of great interest to researchers who seek to manipulate DNA or RNA in applications such as microarrays, DNA hydrogels and gene therapeutics. However, there is no existing system that can rapidly capture and release intact nucleic acids. To meet this unmet need, we develop a functional hydrogel for rapid DNA/RNA capture and release based on the reversible photo-cycloaddition of psoralen and pyrimidines. The functional hydrogel can be easily fabricated through copolymerization of acrylamide with the synthesized allylated psoralen. The psoralen-functionalized hydrogel exhibits effective capture and release of nucleic acids spanning a wide length range in a rapid fashion: > 90 % of the capture process is completed within 1 min; ~100 % of the release process is completed within 2 min. We observe no deleterious effects on the hybridization to the captured targets. Polyacrylamide gel is modified with psoralen through copolymerization of acrylamide with allylated psoralen to form an efficient DNA/RNA capture scaffold. The reversible photo-cycloaddition of psoralen and pyramidine allows DNA/RNA capture in 1 min and DNA/RNA release in 2 min under UV irradiation of distinct wavelengths. The capture and release applies to a wide length range of DNA/RNA and is compatible with hybridization.
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