Creating Anti-icing Surfaces via the Direct Immobilization of Antifreeze Proteins on Aluminum

Title
Creating Anti-icing Surfaces via the Direct Immobilization of Antifreeze Proteins on Aluminum
Authors
김영필
Keywords
THERMAL-STABILITY; ZIRCONIUM-OXIDE; TREHALOSE; ICE; NANOPARTICLES; MECHANISM; PEPTIDES; BINDING; CRYOPRESERVATION; PRESERVATION
Issue Date
2015-07
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v. 5, NO 12019, Page. 1-10
Abstract
Cryoprotectants such as antifreeze proteins (AFPs) and sugar molecules may provide a solution for icing problems. These anti-icing substances protect cells and tissues from freezing by inhibiting ice formation. In this study, we developed a method for coating an industrial metal material (aluminum, Al) with AFP from the Antarctic marine diatom, Chaetoceros neogracile (Cn-AFP), to prevent or delay ice formation. To coat Al with Cn-AFP, we used an Al-binding peptide (ABP) as a conjugator and fused it with Cn-AFP. The ABP bound well to the Al and did not considerably change the functional properties of AFP. Cn-AFP-coated Al (Cn-AFP-Al) showed a sufficiently low supercooling point. Additional trehalose coating of Cn-AFP-Al considerably delayed AFP denaturation on the Al without affecting its antifreeze activity. This metal surface-coating method using trehalose-fortified AFP can be applied to other metals important in the aircraft and cold storage fields where anti-icing materials are critical.
URI
http://www.nature.com/articles/srep12019http://hdl.handle.net/20.500.11754/26296
ISSN
2045-2322
DOI
http://dx.doi.org/10.1038/srep12019
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > LIFE SCIENCE(생명과학과) > Articles
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