Paradoxical effects of galloyl motifs in the interactions of proanthocyanidins with collagen‐rich dentin

Abstract

Plant-derived proanthocyanidins (PACs) mediate physicochemical modifications to the dentin extracellular matrix (ECM). The structure-activity relationships of PACs remain largely unknown, mostly due to the varied complex composition of crude extracts, as well as the challenges of purification and mechanistic assessment. To assess the role of

Biomimetic Growth of Metal–Organic Frameworks for the Stabilization of the Dentin Matrix and Control of Collagenolysis

“…For the measurements, each dentin beam was placed in a threepoint bending submersible clamp adapted to a TA Instruments Q800 DMA analyzer. A strain sweep was conducted using the following parameters: frequency, 1 Hz; amplitude, 1−100 μm; and preload force, 0.01 N. 32 Specimens were tested submerged in ultrapure water and at room temperature. The complex modulus (E*) and tan delta were calculated within the range of linear viscoelasticity, where the modulus is independent of the strain.…”

Ação da solução de chá verde encapsulada em nanoquitosana na dentina submetida à biocorrosão: resistência adesiva da interface e atividade das metaloproteinases da matriz

“…Apesar das características benéficas dos polifenóis do chá verde, a ausência do nanoencapsulamento demonstrou uma queda nas propriedades da C. sinensis (ALANIA et al, 2022;ZOKTI et al, 2016). Portanto, a associação de nanopartículas de quitosana tem sido correlacionada a proteção das catequinas do chá verde e o aumento das qualidades biológicas (CAVALCANTE et al, 2020;TYAGI et al, 2021;WANG, C., et al, 2021;ZOKTI et al, 2016).…”