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Title: One-pot synthesis of aminated bimodal mesoporous silica nanoparticles as silver-embedded antibacterial nanocarriers and CO₂ capture sorbents
Authors: Li, Yun
Tiwari, Amit Kumar
Ng, Sandy Jingyi
Seah, Geok Leng
Lim, Hong Kit
Suteewong, Teeraporn
Tay, Chor Yong
Lam, Yeng Ming
Tan, Kwan Wee
Keywords: Engineering::Materials::Functional materials
Issue Date: 2022
Source: Li, Y., Tiwari, A. K., Ng, S. J., Seah, G. L., Lim, H. K., Suteewong, T., Tay, C. Y., Lam, Y. M. & Tan, K. W. (2022). One-pot synthesis of aminated bimodal mesoporous silica nanoparticles as silver-embedded antibacterial nanocarriers and CO₂ capture sorbents. ACS Applied Materials & Interfaces, 14(46), 52279-52288.
Project: NTU-SUG 
Journal: ACS Applied Materials & Interfaces 
Abstract: Mesoporous silica nanoparticles have highly versatile structural properties that are suitable for a plethora of applications including catalysis, separation, and nanotherapeutics. We report a one-pot synthesis strategy that generates bimodal mesoporous silica nanoparticles via coassembly of a structure-directing Gemini surfactant (C16-3-16) with a tetraethoxysilane/(3-aminopropyl)triethoxysilane-derived sol additive. Synthesis temperature enables control of the nanoparticle shape, structure, and mesopore architecture. Variations of the aminosilane/alkylsilane molar ratio further enable programmable adjustments of hollow to core-shell and dense nanoparticle morphologies, bimodal pore sizes, and surface chemistries. The resulting Gemini-directed aminated mesoporous silica nanoparticles have excellent carbon dioxide adsorption capacities and antimicrobial properties against Escherichia coli. Our results provide an enhanced understanding of the structure formation of multiscale mesoporous inorganic materials that are desirable for numerous applications such as carbon sequestration, water remediation, and biomedical-related applications.
ISSN: 1944-8244
DOI: 10.1021/acsami.2c13076
Schools: School of Materials Science and Engineering 
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © 2022 American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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