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DOI	10.3390/buildings14051202
	Toward Self-Healing Coatings: Bacterial Survival and Calcium Carbonate Precipitation in Acrylic and Styrene-Acrylic Model Paint Films
	Jennings, Matthew E.; Breley, George J.; Drabik, Anna; Tantisuwanno, Chinnapatch; Dhinojwala, Maria A.; Kanaparthi, Anuradha; Barton, Hazel A.
发表日期	2024
EISSN	2075-5309
起始页码	14
结束页码	5
卷号	14 期号:5
英文摘要	Engineered living materials (ELMs) incorporate living material to provide a gain of function over existing materials, such as self-repair. The use of bacteria in ELMs has been studied extensively in concrete, where repair can be facilitated by bacterial ureolytic calcium carbonate (CaCO3) precipitation; however, the study of bacteria in other construction materials is limited. We examined the ability of bacterial species to survive in common latex binder chemistries, a model paint formulation, and through the film-forming process. The longest survival was by bacterial spores of Bacillus simplex str. GGC-P6A, which survive in latex emulsions, a liquid coating composition, and in a dried film for >28 days. Surprisingly, our data show that non-spore-forming Escherichia coli survive at least 15 days in liquid composition, which appear to be influenced by the composition of the outer membrane, nutrient scavenging, and the ability to metabolize toxic acrylate. Spores of GGC-P6A were shown to grow in solid paint films from sites of damage, resulting in crack filling through carbonate precipitation, demonstrating the potential for self-repair through microbially mediated CaCO3 precipitation without directed pH modification. These data suggest that a range of bacterial species, in particular members of Bacilli, may facilitate new applications of bio-augmented, self-healing coating systems.
英文关键词	Bacillus; engineered living materials; calcium carbonate; paint; coatings
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS记录号	WOS:001233518200001
来源期刊	BUILDINGS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297568
作者单位	Wilkes University; University System of Ohio; University of Akron; University System of Ohio; University of Akron; University System of Ohio; University of Akron; University of Alabama System; University of Alabama Tuscaloosa
推荐引用方式 GB/T 7714	Jennings, Matthew E.,Breley, George J.,Drabik, Anna,et al. Toward Self-Healing Coatings: Bacterial Survival and Calcium Carbonate Precipitation in Acrylic and Styrene-Acrylic Model Paint Films[J],2024,14(5).
APA	Jennings, Matthew E..,Breley, George J..,Drabik, Anna.,Tantisuwanno, Chinnapatch.,Dhinojwala, Maria A..,...&Barton, Hazel A..(2024).Toward Self-Healing Coatings: Bacterial Survival and Calcium Carbonate Precipitation in Acrylic and Styrene-Acrylic Model Paint Films.BUILDINGS,14(5).
MLA	Jennings, Matthew E.,et al."Toward Self-Healing Coatings: Bacterial Survival and Calcium Carbonate Precipitation in Acrylic and Styrene-Acrylic Model Paint Films".BUILDINGS 14.5(2024).