Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitation
Abstract Common adhesives for nonstructural applications are manufactured using petrochemicals and synthetic solvents. These adhesives are associated with environmental and health concerns because of their release of volatile organic compounds (VOCs). Biopolymer adhesives are an attractive alternati...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-84087-8 |
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| author | Sobia Anjum Kendall Parks Kaylin Clark Albert Parker Chelsea M. Heveran Robin Gerlach |
| author_facet | Sobia Anjum Kendall Parks Kaylin Clark Albert Parker Chelsea M. Heveran Robin Gerlach |
| author_sort | Sobia Anjum |
| collection | DOAJ |
| description | Abstract Common adhesives for nonstructural applications are manufactured using petrochemicals and synthetic solvents. These adhesives are associated with environmental and health concerns because of their release of volatile organic compounds (VOCs). Biopolymer adhesives are an attractive alternative because of lower VOC emissions, but their strength is often insufficient. Existing mineral fillers can improve the strength of biopolymer adhesives but require the use of crosslinkers that lower process sustainability. This work introduces a novel approach to strengthen biopolymer adhesives through calcium carbonate biomineralization, which avoids the need for crosslinkers. Biomineral fillers produced by either microbially or enzymatically induced calcium carbonate precipitation (MICP and EICP, respectively) were precipitated within guar gum and soy protein biopolymers. Both, MICP and EICP, increased the strength of the biopolymer adhesives. The strength was further improved by optimizing the concentrations of bacteria, urease enzyme, and calcium. The highest strengths achieved were on par with current commercially available nonstructural adhesives. This study demonstrates the feasibility of using calcium carbonate biomineralization to improve the properties of biopolymer adhesives, which increases their potential viability as more sustainable adhesives. |
| format | Article |
| id | doaj-art-eaf2de6ed9f24570b741f7d404101d3c |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-eaf2de6ed9f24570b741f7d404101d3c2025-02-02T12:19:22ZengNature PortfolioScientific Reports2045-23222025-01-0115111110.1038/s41598-024-84087-8Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitationSobia Anjum0Kendall Parks1Kaylin Clark2Albert Parker3Chelsea M. Heveran4Robin Gerlach5Department of Chemical & Biological Engineering, Montana State UniversityDepartment of Chemical & Biological Engineering, Montana State UniversityCenter for Biofilm Engineering, Montana State UniversityCenter for Biofilm Engineering, Montana State UniversityCenter for Biofilm Engineering, Montana State UniversityDepartment of Chemical & Biological Engineering, Montana State UniversityAbstract Common adhesives for nonstructural applications are manufactured using petrochemicals and synthetic solvents. These adhesives are associated with environmental and health concerns because of their release of volatile organic compounds (VOCs). Biopolymer adhesives are an attractive alternative because of lower VOC emissions, but their strength is often insufficient. Existing mineral fillers can improve the strength of biopolymer adhesives but require the use of crosslinkers that lower process sustainability. This work introduces a novel approach to strengthen biopolymer adhesives through calcium carbonate biomineralization, which avoids the need for crosslinkers. Biomineral fillers produced by either microbially or enzymatically induced calcium carbonate precipitation (MICP and EICP, respectively) were precipitated within guar gum and soy protein biopolymers. Both, MICP and EICP, increased the strength of the biopolymer adhesives. The strength was further improved by optimizing the concentrations of bacteria, urease enzyme, and calcium. The highest strengths achieved were on par with current commercially available nonstructural adhesives. This study demonstrates the feasibility of using calcium carbonate biomineralization to improve the properties of biopolymer adhesives, which increases their potential viability as more sustainable adhesives.https://doi.org/10.1038/s41598-024-84087-8BiomineralizationUreolysisBiopolymer materialsBiopolymer-mineral compositesOrganic-mineralNatural adhesives |
| spellingShingle | Sobia Anjum Kendall Parks Kaylin Clark Albert Parker Chelsea M. Heveran Robin Gerlach Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitation Scientific Reports Biomineralization Ureolysis Biopolymer materials Biopolymer-mineral composites Organic-mineral Natural adhesives |
| title | Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitation |
| title_full | Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitation |
| title_fullStr | Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitation |
| title_full_unstemmed | Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitation |
| title_short | Strengthening biopolymer adhesives through ureolysis-induced calcium carbonate precipitation |
| title_sort | strengthening biopolymer adhesives through ureolysis induced calcium carbonate precipitation |
| topic | Biomineralization Ureolysis Biopolymer materials Biopolymer-mineral composites Organic-mineral Natural adhesives |
| url | https://doi.org/10.1038/s41598-024-84087-8 |
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