Bioassembled layered silicate-metal nanoparticle hybrids.
Here we report on the bioenabled assembly of layered nanohybrids using peptides identified with regard to their affinity to the nanoparticle surface. A dodecamer peptide termed M1, determined from a phage peptide display library, was found to bind to the surface of a layered aluminosilicate (montmorillonite, MMT). Fusion of a metal binding domain to the M1 peptide or the M1 peptide by itself was able to direct the growth of metal nanoparticles, such as gold and cobalt-platinum, respectively, on the MMT. This method of producing hybrid nanoclay materials will have utility in catalytic, optical, biomedical, and composite materials applications.
Drummy
Lawrence F
LF
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, USA.
Jones
Sharon E
SE
Pandey
Ras B
RB
Farmer
B L
BL
Vaia
Richard A
RA
Naik
Rajesh R
RR
D001546:Bentonite / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D008422:Materials Testing; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D017640:Silicates / Q000737:chemistry*
D017640:Silicates; D001546:Bentonite