NDLI: 3D Hierarchical Polyaniline–Metal Hybrid Nanopillars: Morphological Control and Its Antibacterial Application

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3D Hierarchical Polyaniline–Metal Hybrid Nanopillars: Morphological Control and Its Antibacterial Application

Content Provider	MDPI
Author	Kim, Jueun Song, Younseong Kim, Hogi Bae, Nam-Ho Lee, Tae Jae Park, Yoo Min Lee, Seok Jae Im, Sung Gap Choi, Bong Gill Lee, Kyoung G.
Copyright Year	2021
Description	Effective and reliable antibacterial surfaces are in high demand in modern society. Although recent works have shown excellent antibacterial performance by combining unique hierarchical nanotopological structures with functional polymer coating, determining the antibacterial performance arising from morphological changes is necessary. In this work, three-dimensional (3D) hierarchical polyaniline–gold (PANI/Au) hybrid nanopillars were successfully fabricated via chemical polymerization (i.e., dilute method). The morphology and structures of the PANI/Au nanopillars were controlled by the reaction time (10 min to 60 h) and the molar concentrations of the monomer (0.01, 0.1, and 1 M aniline), oxidant (0.002, 0.0067, 0.01, and 0.02 M ammonium persulfate), and acid (0.01, 0.1, 1, and 2 M perchloric acid). These complex combinations allow controlling the hierarchical micro- to nanostructure of PANI on a nanopillar array (NPA). Furthermore, the surface of the 3D PANI/Au hierarchical nanostructure can be chemically treated while maintaining the structure using initiated chemical vapor deposition. Moreover, the excellent antibacterial performance of the 3D PANI/Au hierarchical nanostructure (HNS) exceeds 99% after functional polymer coating. The excellent antibacterial performance of the obtained 3D PANI/Au HNS is mainly because of the complex topological and physicochemical surface modification. Thus, these 3D PANI/Au hierarchical nanostructures are promising high-performance antibacterial materials.
Starting Page	2716
e-ISSN	20794991
DOI	10.3390/nano11102716
Journal	Nanomaterials
Issue Number	10
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-10-14
Access Restriction	Open
Subject Keyword	Nanomaterials Manufacturing Engineering Hierarchical Structure Polyaniline–metal Hybrid Antibacterial Application
Content Type	Text
Resource Type	Article

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