Artificial Cells Capable of Long-Lived Protein Synthesis by Using Aptamer Grafted Polymer Hydrogel

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

9 Scopus Citations
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Author(s)

  • Sze Nga Lai
  • Xiaoyu Zhou
  • Xiaofei Ouyang
  • Hui Zhou
  • Yujie Liang
  • And 2 others
  • Jiang Xia
  • Bo Zheng

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)76-83
Journal / PublicationACS Synthetic Biology
Volume9
Issue number1
Online published27 Dec 2019
Publication statusPublished - 17 Jan 2020

Abstract

Herein we report a new type of artificial cells capable of long-term protein expression and regulation. We constructed the artificial cells by grafting anti-His-tag aptamer into the polymer backbone of the hydrogel particles, and then immobilizing the His-tagged proteinaceous factors of the transcription and translation system into the hydrogel particles. Long-term protein expression for at least 16 days was achieved by continuously flowing feeding buffer through the artificial cells. The effect of various metal ions on the protein expression in the artificial cells was investigated. Utilizing the lac operator-repressor system, we could regulate the expression level of eGFP in the artificial cells by controlling the β-D-1-thiogalatopyranoside (IPTG) concentration in the feeding buffer. The artificial cells based on the aptamer grafted hydrogel provide a useful platform for gene circuit engineering, metabolic engineering, drug delivery, and biosensors.

Research Area(s)

  • cell-free system, gene circuit, gene oscillator, synthetic biology

Citation Format(s)

Artificial Cells Capable of Long-Lived Protein Synthesis by Using Aptamer Grafted Polymer Hydrogel. / Lai, Sze Nga; Zhou, Xiaoyu; Ouyang, Xiaofei; Zhou, Hui; Liang, Yujie; Xia, Jiang; Zheng, Bo.

In: ACS Synthetic Biology, Vol. 9, No. 1, 17.01.2020, p. 76-83.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review