Tuning BMI.NTf2 Ionic Liquid Concentration in Dental Adhesives Towards a Rational Design of Antibacterial Materials
Source abstract
Abstract
1-Butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMI.NTf2) is a hydrophobic ionic liquid with potential antibacterial properties for dental materials. This study aimed to (1) incorporate different mass fractions of BMI.NTf2 into a dental adhesive and (2) assess its impact on physical and chemical properties. Adhesive resins were prepared with 1 (G1%), 2.5 (G2.5%), and 5 wt.% (G5%) BMI.NTf2, with a control group (GCTRL) lacking the ionic liquid. Evaluations included polymerization kinetics, degree of conversion (DC), softening in solvent (ΔKHN%), and ultimate tensile strength (UTS). Groups with BMI.NTf2 showed accelerated polymerization kinetics, with G5% achieving a higher DC and ΔKHN% compared to GCTRL (p < 0.05). Lower concentrations (1% and 2.5%) did not affect ΔKHN%, and no significant differences were found in UTS across groups (p > 0.05). Notably, 2.5 wt.% of BMI.NTf2 increased the DC without affecting other properties, indicating optimal polymerization rates and handling characteristics. These results support the development of BMI.NTf2-based antibacterial adhesives that may assist in preventing secondary caries in restorative dentistry.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Dental materials and restorations · Dental Anxiety and Anesthesia Techniques · Dental Erosion and Treatment
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Division of Cariology and Operative Dentistry, Department of Comprehensive Dentistry, University of Maryland School of Dentistry, 650 W Baltimore Street, Baltimore, MD 21201, USA
Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre 90035-004, RS, Brazil
Laboratory of Molecular Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Agronomia, Porto Alegre 91501-970, RS, Brazil
Funding
National Institute of Science and Technology in 3D Printing and Advanced Materials Applied to Human and Veterinary Health—INCT _3D-Saúde, CNPq/Brazil · CNPq/MCTI/FNDCT Nº · Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)
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