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- Publisher Website: 10.1016/j.compositesb.2020.108448
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Article: Hybrid engineered dental composites by multiscale reinforcements with chitosan-integrated halloysite nanotubes and S-glass fibers
Title | Hybrid engineered dental composites by multiscale reinforcements with chitosan-integrated halloysite nanotubes and S-glass fibers |
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Authors | |
Keywords | Chitosan Dental composites Halloysite nanotubes Mechanical antibacterial properties Streptococcus mutans |
Issue Date | 2020 |
Citation | Composites Part B: Engineering, 2020, v. 202, article no. 108448 How to Cite? |
Abstract | Novel combinations of mechanical and biological properties are required when developing new polymer-based restorative dental composites. This study reports a promising strategy to develop preventive and restorative dental materials by synthesizing multifunctional dental composites reinforced with chitosan integrated halloysite nanotubes (CHI-HNTs). An enhanced dispersion capability of CHI-HNTs in the urethane-dimethacrylate/triethyleneglycol-dimethacrylate based dental composite is obtained by a sonication-supported chitosan integrating process, resulting in increased mechanical properties such as flexural strength, modulus, and breaking energy of the composites (2 wt% CHI-HNTs, 45 wt% glass particle, 5 wt% glass fiber) up to 8.1%, 17.2%, and 9.8% compared to control composites without CHI-HNT. Microscopic fractography of the fracture surface reveals that highly dispersed CHI-HNTs contribute to the increased mechanical strength of the composites. This is achieved via a dispersion-strengthening mechanism such as nanotube pinning and bridging/pull-out reinforcements. The highly dispersed CHI-HNTs in the composites also have antibacterial capability against Streptococcus mutans. With 2 wt% of CHI-HNTs in the composites, the viability of S. mutans biofilm decreases by approximately 39%. The positively charged amine groups (-NH3+) of chitosan are involved in improving the dispersion effect of HNTs and antibacterial activity of the CHI-HNTs reinforced dental composites. These findings open the route for developing advanced dental composites and engineered biomaterials with well-controlled HNTs dispersion. |
Persistent Identifier | http://hdl.handle.net/10722/309273 |
ISSN | 2023 Impact Factor: 12.7 2023 SCImago Journal Rankings: 2.802 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Cho, Kiho | - |
dc.contributor.author | Yasir, Muhammad | - |
dc.contributor.author | Jung, Minkyo | - |
dc.contributor.author | Willcox, Mark D.P. | - |
dc.contributor.author | Stenzel, Martina H. | - |
dc.contributor.author | Rajan, Ginu | - |
dc.contributor.author | Farrar, Paul | - |
dc.contributor.author | Prusty, B. Gangadhara | - |
dc.date.accessioned | 2021-12-15T03:59:53Z | - |
dc.date.available | 2021-12-15T03:59:53Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Composites Part B: Engineering, 2020, v. 202, article no. 108448 | - |
dc.identifier.issn | 1359-8368 | - |
dc.identifier.uri | http://hdl.handle.net/10722/309273 | - |
dc.description.abstract | Novel combinations of mechanical and biological properties are required when developing new polymer-based restorative dental composites. This study reports a promising strategy to develop preventive and restorative dental materials by synthesizing multifunctional dental composites reinforced with chitosan integrated halloysite nanotubes (CHI-HNTs). An enhanced dispersion capability of CHI-HNTs in the urethane-dimethacrylate/triethyleneglycol-dimethacrylate based dental composite is obtained by a sonication-supported chitosan integrating process, resulting in increased mechanical properties such as flexural strength, modulus, and breaking energy of the composites (2 wt% CHI-HNTs, 45 wt% glass particle, 5 wt% glass fiber) up to 8.1%, 17.2%, and 9.8% compared to control composites without CHI-HNT. Microscopic fractography of the fracture surface reveals that highly dispersed CHI-HNTs contribute to the increased mechanical strength of the composites. This is achieved via a dispersion-strengthening mechanism such as nanotube pinning and bridging/pull-out reinforcements. The highly dispersed CHI-HNTs in the composites also have antibacterial capability against Streptococcus mutans. With 2 wt% of CHI-HNTs in the composites, the viability of S. mutans biofilm decreases by approximately 39%. The positively charged amine groups (-NH3+) of chitosan are involved in improving the dispersion effect of HNTs and antibacterial activity of the CHI-HNTs reinforced dental composites. These findings open the route for developing advanced dental composites and engineered biomaterials with well-controlled HNTs dispersion. | - |
dc.language | eng | - |
dc.relation.ispartof | Composites Part B: Engineering | - |
dc.subject | Chitosan | - |
dc.subject | Dental composites | - |
dc.subject | Halloysite nanotubes | - |
dc.subject | Mechanical antibacterial properties | - |
dc.subject | Streptococcus mutans | - |
dc.title | Hybrid engineered dental composites by multiscale reinforcements with chitosan-integrated halloysite nanotubes and S-glass fibers | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.compositesb.2020.108448 | - |
dc.identifier.scopus | eid_2-s2.0-85092418487 | - |
dc.identifier.volume | 202 | - |
dc.identifier.spage | article no. 108448 | - |
dc.identifier.epage | article no. 108448 | - |
dc.identifier.isi | WOS:000581932100048 | - |