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Toward a modular multi-material nanoparticle synthesis and assembly strategy via bionanocombinatorics: bifunctional peptides for linking Au and Ag nanomaterials

Briggs, Beverly D., Palafox-Hernandez, J. Pablo, Li, Yue, Lim, Chang-Keun, Woehl, Taylor J., Bedford, Nicholas M., Seifert, Soenke, Swihart, Mark T., Prasad, Paras N., Walsh, Tiffany R. and Knecht, Marc R. 2016, Toward a modular multi-material nanoparticle synthesis and assembly strategy via bionanocombinatorics: bifunctional peptides for linking Au and Ag nanomaterials, Physical chemistry chemical physics, vol. 18, no. 44, pp. 30845-30856, doi: 10.1039/c6cp06135d.

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Title Toward a modular multi-material nanoparticle synthesis and assembly strategy via bionanocombinatorics: bifunctional peptides for linking Au and Ag nanomaterials
Author(s) Briggs, Beverly D.
Palafox-Hernandez, J. Pablo
Li, Yue
Lim, Chang-Keun
Woehl, Taylor J.
Bedford, Nicholas M.
Seifert, Soenke
Swihart, Mark T.
Prasad, Paras N.
Walsh, Tiffany R.ORCID iD for Walsh, Tiffany R. orcid.org/0000-0002-0233-9484
Knecht, Marc R.
Journal name Physical chemistry chemical physics
Volume number 18
Issue number 44
Start page 30845
End page 30856
Total pages 12
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2016
ISSN 1463-9076
1463-9084
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Physical
Physics, Atomic, Molecular & Chemical
Chemistry
Physics
UNNATURAL AMINO-ACIDS
GOLD NANOPARTICLES
ASYMMETRIC FUNCTIONALIZATION
BINDING PEPTIDE
ADSORPTION
PROTEINS
SEQUENCE
CRYSTALLIZATION
SUPERSTRUCTURES
NANOSTRUCTURES
Summary Materials-binding peptides represent a unique avenue towards controlling the shape and size of nanoparticles (NPs) grown under aqueous conditions. Here, employing a bionanocombinatorics approach, two such materials-binding peptides were linked at either end of a photoswitchable spacer, forming a multi-domain materials-binding molecule to control the in situ synthesis and organization of Ag and Au NPs under ambient conditions. These multi-domain molecules retained the peptides' ability to nucleate, grow, and stabilize Ag and Au NPs in aqueous media. Disordered co-assemblies of the two nanomaterials were observed by TEM imaging of dried samples after sequential growth of the two metals, and showed a clustering behavior that was not typically observed without both metals and the linker molecules. While TEM evidence suggested the formation of AuNP/AgNP assemblies upon drying, SAXS analysis indicated that no extended assemblies existed in solution, suggesting that sample drying plays an important role in facilitating NP clustering. Molecular simulations and experimental data revealed tunable materials-binding based upon the isomerization state of the photoswitchable unit and metal employed. This work is a first step in generating externally actuated biomolecules with specific material-binding properties that could be used as the building blocks to achieve multi-material switchable NP assemblies.
Language eng
DOI 10.1039/c6cp06135d
Field of Research 100708 Nanomaterials
100706 Nanofabrication, Growth and Self Assembly
030406 Proteins and Peptides
091202 Composite and Hybrid Materials
02 Physical Sciences
03 Chemical Sciences
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2016, the Owner Societies
Persistent URL http://hdl.handle.net/10536/DRO/DU:30089057

Document type: Journal Article
Collection: Institute for Frontier Materials
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