Multimodification of a 304 Stainless Steel Surface Based on DA/PEI/SiO2 for Improving Surface Antimicrobial Performance
Source abstract
Abstract
An innovative antifouling composite coating comprising dopamine (DA), polyethyleneimine (PEI), and silica (SiO2) was developed through a straightforward and environmentally friendly approach. Initially, silica nanoparticles comodified with DA and PEI were meticulously deposited onto 304 stainless steel surfaces pretreated with dopamine to achieve a uniformly distributed nanocomposite surface. Comprehensive analytical techniques, including Fourier transform infrared spectrometry (FTIR), X-ray photoelectron spectrometry (XPS), field emission scanning electron microscopy (SEM), contact angle measurement (CA), and 3D optical profilometry, were employed to affirm the successful preparation of the silica nanocomposite coatings and the effective grafting of MAG II. The antibacterial and antibiofilm performance of the DA/PEI/SiO2-modified surface was rigorously assessed using Vibrio natriegens (V. natriegens), yielding compelling results indicating a substantial 51.4% reduction in biofilm formation on the SS-DA/PEI/SiO2 sample surfaces, coupled with an impressive 95.2% decrease in V. natriegens adhesion. This pioneering research introduces an innovative strategy for the development of antimicrobial surfaces with promising applications in medical devices, aquaculture, and related fields.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Marine Biology and Environmental Chemistry · Polymer Surface Interaction Studies · Antimicrobial agents and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Intelligent Manufacturing and Smart Transportation, Suzhou City University, Suzhou 215104, China
School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China
Funding
Industry-University Cooperation Collaborative Education Project of the Ministry of Education
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