Progress in construction of bio-inspired physico-antimicrobial surfaces

Abstract

Bacteria are widely distributed in the natural environment and the surfaces of objects, bringing about much trouble in our lives. Varies nanomaterials have been demonstrated good effect on killing microbe, but the consistency and stability seem to be improved. Recently, antibacterial effect on surfaces of some natural nanostructures was recognized, and more and more evidences were provided as a new type of bactericidal mechanism, the physical sterilization. The dragonfly and cicada wings have been found to possess the most exceptional antibacterial properties because of the specific nanostructure. Inspired by the biofunctions, researchers began to build a series of physico-antimicrobial surfaces on different materials to avoid the abuse of antibiotics and the environmental pollution of organic antibacterial agents. The physico-antimicrobial structure does not rely on chemical components, and a series of physico-antimicrobial models have been established. To deeply understand the physically bactericidal effect, this article reviews a series of natural and biomimetic physical antibacterial surfaces and makes reasonable expectations for the application of such composite materials in constructing physical antibacterial surfaces.

Recent Progress on Bioinspired Antibacterial Surfaces for Biomedical Application

“…The most common approach to interfere with the s regulate the surface wettability, i.e., hydrophobicity or h example, the surface can be rendered hydrophobic by gr cules or infusing liquid lubricant, the result of the latter fused porous surfaces (SLIPSs) [60][61][62]. A novel SLIPS (butyl methacrylate-co-ethylene dimethacrylate) films i ether fluid−slippery poly (butyl methacrylate-co-ethylen strated to prevent different strains of the opportunistic p film formation for 7 days [63].…”

“…The most common approach to interfere with the surface–bacteria interaction is to regulate the surface wettability, i.e., hydrophobicity or hydrophilicity ( Figure 4 (Ai)). For example, the surface can be rendered hydrophobic by grafting low-surface-energy molecules or infusing liquid lubricant, the result of the latter being named slippery liquid-infused porous surfaces (SLIPSs) [ 60 , 61 , 62 ]. A novel SLIPS consisting of microporous poly (butyl methacrylate-co-ethylene dimethacrylate) films infused with the perfluoropolyether fluid−slippery poly (butyl methacrylate-co-ethylene dimethacrylate) was demonstrated to prevent different strains of the opportunistic pathogen P. aeruginosa from biofilm formation for 7 days [ 63 ].…”

Nature-Inspired Antimicrobial Surfaces and Their Potential Applications in Food Industries

“…Nanoengineered versions of the nature-inspired surfaces have their limitations as well as advantages as with any other technique/method that is currently in use. Some advantages include the physio-antimicrobial structure that does not rely on chemical components, which reduces the risk of developing chemical resistance or disinfectant-based chemical accumulation in the food chain [ 40 ]. Resistance to antibiotics and disinfectants is an emerging concern in the world, and the progress in the field of antimicrobial surfaces shows a potential step away from these chemical disinfectants.…”

Carbon Nanomaterials Modified Biomimetic Dental Implants for Diabetic Patients

“…Biomimetic dental implants can be achieved by modifying the surface of an implant material [51]. Surface properties such as surface roughness are important factors governing the success of dental implants [52], and it is the intrinsically nanostructured surface features of the cicada [53][54][55], dragonfly [56,57], shark skin [57,58], gecko feet [21], taro [59][60][61], and lotus leaves [62,63] that are able to impart self-cleaning and antibacterial capabilities to dental implants [19]. Biomimetic dental implants have many advantages over ordinary implants; for example, modified surfaces or functionalized biomimetic dental implants can help increase antimicrobial action [19] by adding a functional group with antimicrobial properties [51].…”