Entirely recombinant protein-based hydrogels for selective heavy metal sequestration
| Autor: | Zhongguang Yang, Jiren Luo, Fei Sun, Songzi Kou |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Polymers and Plastics
Chromate conversion coating Environmental remediation Metal ions in aqueous solution Organic Chemistry Bioengineering Nanotechnology 02 engineering and technology Molybdate 010402 general chemistry 021001 nanoscience & nanotechnology Uranyl 01 natural sciences Biochemistry Combinatorial chemistry 0104 chemical sciences Metal chemistry.chemical_compound Adsorption chemistry visual_art Self-healing hydrogels visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Polymer Chemistry. 8:6158-6164 |
| ISSN: | 1759-9962 1759-9954 |
| DOI: | 10.1039/c7py01206c |
| Popis: | Materials that can adsorb heavy metal ions with high efficiency and selectivity hold great promise for green mining and environmental remediation. Here we present a strategy for synthesizing hydrogel-based heavy metal adsorbents under mild physiological conditions by covalently stitching together metalloproteins such as engineered super uranyl-binding proteins (SUP) and naturally occurring molybdate/chromate binding proteins (ModA). The resulting recombinant protein-based hydrogels showed the ability to selectively sequester uranyl from seawater and chromate from tap water, respectively. These results point to a convenient and versatile approach for converting metalloproteins to macroscopic metal adsorbents with huge potential in alternative energies as well as heavy metal remediation. |
| Databáze: | OpenAIRE |
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