Recent Advances in Superhydrophobic and Antibacterial Coatings for Biomedical Materials

Abstract

In recent years, biomedical materials have been used in the response to the emergence of medical infections that pose a serious threat to the health and life of patients. The construction of superhydrophobic coatings and antimicrobial coatings is among the most effective strategies to address this type of medical derived infection. Firstly, this paper reviews the preparation methods of superhydrophobic surface coatings and their applications; summarizes the advantages and disadvantages of superhydrophobic surface preparation schemes based on the template method, spraying methods, etching methods, and their respective improvement measures; and focuses on the applications of superhydrophobic surfaces in self-cleaning and antibacterial coatings. Then, the action mechanisms of contact antibacterial coatings, anti-adhesion bacteriostatic coatings, anti-adhesion bactericidal coatings, and intelligent antibacterial coatings are introduced, and their respective characteristics, advantages, and disadvantages are summarized. The application potential of antimicrobial coatings in the field of biomedical materials is highlighted. Finally, the applications of superhydrophobic and antimicrobial coatings in medical devices are discussed in detail, the reasons for their current difficulties in commercial application are analyzed, and the future directions of superhydrophobic coatings and antimicrobial coatings are considered.

Nature-Inspired Superhydrophobic Coating Materials: Drawing Inspiration from Nature for Enhanced Functionality

“…Additionally, protein and platelet adsorption on the superhydrophobic-treated tube witnessed reductions of 32% and 74%, respectively. Figure 31 illustrates the application of superhydrophobic surfaces in medical devices to prevent blood stickiness [ 29 ]. In addressing microleakage in dental composite restorations, superhydrophobic coatings were developed using photo-crosslinked polyurethane (PU) and SiO 2 nanoparticles functionalized with organic fluoro groups (F-SiO 2 NPs).…”

“…In recent years, several high-quality review articles in the superhydrophobic coatings field have summarized recent advancements, challenges, and applications [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. Wang et al [ 29 ] specifically focused on the development and mechanism of superhydrophobic and antimicrobial coatings, addressing potential applications and associated challenges in commercial adoption. Nomeir et al [ 31 ] offered new perspectives on self-cleaning superhydrophobic coatings for solar energy applications, exploring the impact of dust accumulation on solar panel efficiency.…”

Xiuyan Jade Waste as Antibacterial Additives for Functional Coatings

“…As people become more and more concerned about their health, building materials are to be functionalized to suit improved human health. This is especially true because of the emergence of different viruses and bacteria around the world and their threat to the health of human beings [1]. In this study, Xiuyan jade waste is transformed into a very effective antibacterial agent, which could be used as antibacterial additives in building coatings.…”

Recent Developments in Slippery Liquid-Infused Porous Surface Coatings for Biomedical Applications

“…In surface science the physical and chemical phenomena occurring at the interface of two phases are investigated, encompassing various disciplines such as surface physics and surface chemistry . Surface wettability, which describes the interaction between liquid and solid surfaces, holds immense potential for diverse applications in the biomedical field. − For instance, surface wettability is a crucial consideration in the design of scaffolds as it facilitates optimal cell attachment and viability. , Similarly, in the development of implanted biomedical devices, regulating the surface wettability of materials can effectively reduce biofilm formation and thrombus generation. , Consequently, the construction of highly wettable coatings has emerged as an important research direction in the biomedical field …”