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Cysteine Induced Chiral Morphology in Palladium Nanoparticle
Author(s) -
Cho Nam Heon,
Lee HyeEun,
Ahn HyoYong,
Lee Yoon Young,
Im Sang Won,
Kim Hyeohn,
Nam Ki Tae
Publication year - 2019
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201900062
Subject(s) - palladium , nanoparticle , chirality (physics) , morphology (biology) , nanomaterials , molecule , cysteine , materials science , enantioselective synthesis , nanotechnology , chemistry , combinatorial chemistry , catalysis , organic chemistry , enzyme , chiral symmetry breaking , physics , quantum mechanics , quark , biology , nambu–jona lasinio model , genetics
New morphology of palladium nanoparticles is demonstrated by utilizing the interaction of amino acid and palladium metallic surface. Chiral cysteine molecules induce chiral spiral structure evolution. The resulting spiral palladium nanoparticles show rotational direction preference with respect to the handedness of the added cysteine molecule. The strong correlation of the resulting morphologies with surfactant and cysteine concentration exists for effective generation of chirality. Synthesized chiral palladium nanoparticles are around 100 nm sized cubic based nanoparticles with each face of the cube containing a spiral structure. Generation of nanoparticle morphology is studied through growth of time‐dependent morphology evolution with statistical analysis of spiral structure formation. The reported synthesis method can provide a new route to nanomaterial design for enantioselective catalysis and sensing.