Biomimetic artificial inorganic enzyme-free self-propelled microfish robot for selective detection of Pb2+ in water

James Guo Sheng Moo, Hong Wang, Guanjia Zhao, Martin Pumera

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

The availability of drinking water is of utmost importance for the world population. Anthropogenic pollutants of water, such as heavy-metal ions, are major problems in water contamination. The toxicity assays used range from cell assays to animal tests. Herein, we replace biological toxicity assays, which use higher organisms, with artificial inorganic self-propelled microtubular robots. The viability and activity of these robots are negatively influenced by heavy metals, such as Pb2+, in a similar manner to that of live fish models. This allows the establishment of a lethal dose (LD50) of heavy metal for artificial inorganic microfish robots. The self-propelled microfish robots show specific response to Pb2+ compared to other heavy metals, such as Cd2+, and can be used for selective determination of Pb2+ in water. It is a first step towards replacing the biological toxicity assays with biomimetic inorganic autonomous robotic systems. How much is the fish? Artificial inorganic self-propelled microtubular robots have been used to replace heavy-metal biological toxicity assays, which use higher organisms. The viability and activity of these robots are negatively influenced by heavy metals, such as Pb2+, in a similar manner to that of live fish models. It is a first step towards replacing the biological toxicity assays with biomimetic inorganic autonomous robotic systems (see figure).

Original languageEnglish
Pages (from-to)4292-4296
Number of pages5
JournalChemistry - A European Journal
Volume20
Issue number15
DOIs
Publication statusPublished - 2014 Apr 7

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

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