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Ionic liquid-loaded microcapsules doped into dental resin infiltrants

Bioactive materials 2021年第9期6卷 2667-2675页

作者： m.rla cuppini Isadora martini Garcia Virgínia Serra de Souza Kelly Cristine Zatta Fernanda Visioli Vicente Castelo Branco Leitune Sílvia Stanisçuazki Guterres Jackson Damiani Scholten Fabrício mezzomo Collares Department of Dental materials School of DentistryFederal University of Rio Grande do SulRamiro Barcelos Street2492Rio Branco90035-003Porto AlegreRSBrazil Laboratory of molecular Catalysis Institute of ChemistryFederal University of Rio Grande do SulBento Gonçalves Avenue9500Agronomia91501-970Porto AlegreRSBrazil Cosmetology and Pharmaceutical Nanotechnology Laboratory School of Pharmaceutical SciencesUniversidade Federal do Rio Grande do SulAv.Ipiranga 275290610-000Porto AlegreRSBrazil Oral Pathology Department School of DentistryFederal University of Rio Grande do SulRua Ramiro Barcelos2492Rio Branco90035-003Porto AlegreRSBrazil Cosmetology Laboratory School of Pharmaceutical SciencesUniversidade Federal do Rio Grande do SulAv.Ipiranga 275290610-000Porto AlegreRSBrazil

Resin infiltrants have been effectively applied in dentistry to manage non-cavitated carious lesions in proximal dental ***,the common formulations are composed of inert methacrylate *** this study,we developed a novel resin infiltrant with microcapsules loaded with an ionic liquid(mC-IL),and analyzed the physical properties and cytotoxicity of the dental ***,the ionic liquid 1-n-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide(***2)was ***2 has previously shown antibacterial activity in a dental ***,mC-IL were synthesized by the deposition of a preformed *** mC-IL were analyzed for particle size and de-agglomeration effect via laser diffraction analysis and shape via scanning electron microscopy(SEm).The infiltrants were formulated,and the mC-IL were incorporated at 2.5%,5%,and 10 wt%.A group without mC-IL was used as a *** infiltrants were evaluated for ultimate tensile strength(UTS),contact angle,surface free energy(SFE),and *** mC-IL showed a mean particle size of 1.64(±0.08)μm,shriveled aspect,and a de-agglomeration profile suggestive of nanoparticles’presence in the synthesized *** were no differences in UTS among groups(p>0.05).The incorporation of 10 wt%of mC-IL increased the contact angle(pm 5 wt%reduced the SFE in comparison to the control group(pman cell viability was above 90%for all groups(p>0.05).The incorporation of microcapsules as a drug-delivery system for ionic liquids may be a promising strategy to improve dental restorative materials.

关键词： Surface properties Dental caries Stress mechanical Drug delivery systems Polymers

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