TY - JOUR
T1 - Biomineralization of mesoporous silica and metal nanoparticle/mesoporous silica nanohybrids by chemo-enzymatically prepared peptides
AU - Chen, I. Hsiu
AU - Lee, Ting Yuan
AU - Tseng, Yu Chao
AU - Liou, Jhih Han
AU - Jan, Jeng Shiung
N1 - Funding Information:
The authors acknowledge the financial support from the Ministry of Science and Technology, Taiwan (MOST 108-2221-E-006-034-MY3 and 107-2923-M-006-002-MY3 ). This work was financially supported by the Hierarchical Green-Energy Materials (Hi-GEM) Research Center, from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) and the Ministry of Science and Technology (MOST 107-3017-F-006 -003 ) in Taiwan. We thank Ms. Bi-Yun Lin and Shu Yi Sun (Instrument Center, National Cheng Kung University) for their help on NMR experiments.
Funding Information:
The authors acknowledge the financial support from the Ministry of Science and Technology, Taiwan (MOST 108-2221-E-006-034-MY3 and 107-2923-M-006-002-MY3). This work was financially supported by the Hierarchical Green-Energy Materials (Hi-GEM) Research Center, from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) and the Ministry of Science and Technology (MOST 107-3017-F-006 -003) in Taiwan. We thank Ms. Bi-Yun Lin and Shu Yi Sun (Instrument Center, National Cheng Kung University) for their help on NMR experiments.
PY - 2021/2/5
Y1 - 2021/2/5
N2 - We report the feasibility of using chemo-enzymatically prepared peptides, oligo(L-lysine-co-L-tyrosine) (oligoKY) and oligo(L-lysine-co-L-phenylalanine) (oligoKF) for sequentially mediated growth of metal nanoparticles (NPs) and/or silica mineralization. This approach is easy to handle, environmentally benign, and economical as compared to other tedious and multiple-step peptide synthesis approaches. Colloidal stable silica/peptide particles with various sizes between 150 and 430 nm can be simply fabricated by tuning silica precursor concentration via peptide-mediated silica mineralization. Mesoporous silica with pore sizes mostly between 2 and 8 nm can be obtained by replication of sheet-like peptide nano-assemblies. In addition, Au NP/silica and Ag NP/silica nanohybrids can be prepared by peptide-mediated nucleation of metal NPs onto silica/peptide colloidal particles. Silver/palladium (AgPd) alloy-based silica nanohybrids were also prepared via galvanic replacement reaction. The experimental data revealed that these nanohybrids showed reliable and enhanced catalytic activities in reducing 4-nitrophenol, which are primarily dictated by the surface area/size of metal NPs and the accessibility to metal NPs, as well as the mass transfer of chemicals in the porous network. This study demonstrated that chemo-enzymatic polymerization is a promising approach to design peptide materials with designated building blocks for specific applications.
AB - We report the feasibility of using chemo-enzymatically prepared peptides, oligo(L-lysine-co-L-tyrosine) (oligoKY) and oligo(L-lysine-co-L-phenylalanine) (oligoKF) for sequentially mediated growth of metal nanoparticles (NPs) and/or silica mineralization. This approach is easy to handle, environmentally benign, and economical as compared to other tedious and multiple-step peptide synthesis approaches. Colloidal stable silica/peptide particles with various sizes between 150 and 430 nm can be simply fabricated by tuning silica precursor concentration via peptide-mediated silica mineralization. Mesoporous silica with pore sizes mostly between 2 and 8 nm can be obtained by replication of sheet-like peptide nano-assemblies. In addition, Au NP/silica and Ag NP/silica nanohybrids can be prepared by peptide-mediated nucleation of metal NPs onto silica/peptide colloidal particles. Silver/palladium (AgPd) alloy-based silica nanohybrids were also prepared via galvanic replacement reaction. The experimental data revealed that these nanohybrids showed reliable and enhanced catalytic activities in reducing 4-nitrophenol, which are primarily dictated by the surface area/size of metal NPs and the accessibility to metal NPs, as well as the mass transfer of chemicals in the porous network. This study demonstrated that chemo-enzymatic polymerization is a promising approach to design peptide materials with designated building blocks for specific applications.
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U2 - 10.1016/j.colsurfa.2020.125753
DO - 10.1016/j.colsurfa.2020.125753
M3 - Article
AN - SCOPUS:85094616021
VL - 610
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
SN - 0927-7757
M1 - 125753
ER -