Bio-inspired detoxification using 3D-printed hydrogel nanocomposites

Maling Gou (), Xin Qu, Wei Zhu, Mingli Xiang, Jun Yang, Kang Zhang, Yuquan Wei and Shaochen Chen ()
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Maling Gou: State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University
Xin Qu: University of California, San Diego, La Jolla, California 92093, USA
Wei Zhu: University of California, San Diego, La Jolla, California 92093, USA
Mingli Xiang: State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University
Jun Yang: School of Chemistry and Chemical Engineering, Shaanxi Normal University
Kang Zhang: Shiley Eye Center and Institute for Genomic Medicine, University of California, San Diego, La Jolla, California 92093, USA
Yuquan Wei: State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University
Shaochen Chen: University of California, San Diego, La Jolla, California 92093, USA

Nature Communications, 2014, vol. 5, issue 1, 1-9

Abstract: Abstract Rationally designed nanoparticles that can bind toxins show great promise for detoxification. However, the conventional intravenous administration of nanoparticles for detoxification often leads to nanoparticle accumulation in the liver, posing a risk of secondary poisoning especially in liver-failure patients. Here we present a liver-inspired three-dimensional (3D) detoxification device. This device is created by 3D printing of designer hydrogels with functional polydiacetylene nanoparticles installed in the hydrogel matrix. The nanoparticles can attract, capture and sense toxins, while the 3D matrix with a modified liver lobule microstructure allows toxins to be trapped efficiently. Our results show that the toxin solution completely loses its virulence after treatment using this biomimetic detoxification device. This work provides a proof-of-concept of detoxification by a 3D-printed biomimetic nanocomposite construct in hydrogel, and could lead to the development of alternative detoxification platforms.

Date: 2014
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DOI: 10.1038/ncomms4774

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