The objective of the study was to gain more understanding on the photopolymerization mechanism and the role of individual monomers in the polymerization behavior of a PAE-based self-etch adhesive system with the presence of HAp and water. The photo-polymerization process of the model adhesive system (2MP/HEMA) was monitored by using real-time attenuated total reflectance Fourier transform infrared (ATR/FT-IR) technique. The effect of monomer ratio, HAp incorporation, and water content were investigated. The degree of conversion (DC) and the polymerization rate (PR) of the adhesives were determined to evaluate the polymerization efficacy. The results showed that the DC and PR increased consistently as the 2MP content increased from 30% to 70%, while they declined drastically as the 2MP content was further elevated to 100%. The incorporation of HAp considerably increased the DC and PR; however, the increase in water content was found to have negative influence on the photopolymerization.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4017588 | PMC |
| http://dx.doi.org/10.4012/dmj.2012-108 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Identifying falsified COVID-19 vaccines by analysing vaccine vial label and excipient profiles using MALDI-ToF mass spectrometry.
NPJ Vaccines
January 2025
Department of Biochemistry, University of Oxford, OX1 3QU, Oxford, UK.
The rapid development and worldwide distribution of COVID-19 vaccines is a remarkable achievement of biomedical research and logistical implementation. However, these developments are associated with the risk of a surge of substandard and falsified (SF) vaccines, as illustrated by the 184 incidents with SF and diverted COVID-19 vaccines which have been reported during the pandemic in 48 countries, with a paucity of methods for their detection in supply chains. In this context, matrix-assisted laser desorption ionisation-time of flight (MALDI-ToF) mass spectrometry (MS) is globally available for fast and accurate analysis of bacteria in patient samples, offering a potentially accessible solution to identify SF vaccines.
View Article and Find Full Text PDFCell adhesion and spreading on fluid membranes through microtubules-dependent mechanotransduction.
Nat Commun
January 2025
Institut Curie, Université PSL, Sorbonne Université, CNRS UMR168, Laboratoire Physico-Chimie Curie, 75005, Paris, France.
Integrin clusters facilitate mechanical force transmission (mechanotransduction) and regulate biochemical signaling during cell adhesion. However, most studies have focused on rigid substrates. On fluid substrates like supported lipid bilayers (SLBs), integrin ligands are mobile, and adhesive complexes are traditionally thought unable to anchor for cell spreading.
View Article and Find Full Text PDF[What holds the hospital together-A "fixation error" in terms of patient safety].
Anaesthesiologie
January 2025
Team Pflegewissenschaft und -fortschritt, Agaplesion Diakonieklinikum Hamburg, Hohe Weide 17, 20259, Hamburg, Deutschland.
Background: Fixation plasters are nowadays an important part of clinical care and the product range is adapted to the needs of patient care. A multifaceted selection is available.
Aim Of The Study: To increase vigilance towards the supposedly low-threshold use of fixation plasters in patient care.
A simple approach to fabricate chitosan-delivered avermectin controlled release microparticles for improved efficacy and reduced residues.
Int J Biol Macromol
January 2025
College of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, Shandong, PR China. Electronic address:
The presence of a synergistic effect between carrier and insecticide in controlled release formulations is highly desirable to improve efficacy to target pests and reduce insecticide use. Herein, controlled release microparticles of avermectin (AVM) were fabricated using natural chitosan (CTS) as a carrier by a pH adjustment method. The resulted AVM@CTS microparticles displayed high encapsulation efficiency (73.
View Article and Find Full Text PDFCompetitive behaviors in Serratia marcescens are coordinately regulated by a lifestyle switch frequently inactivated in the clinical environment.
Cell Host Microbe
January 2025
School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK. Electronic address:
Opportunistic bacterial pathogens must compete with other bacteria and switch between host- and environment-adapted states. Type VI secretion systems (T6SSs) occur widely in gram-negative bacteria and can efficiently kill neighboring competitors. We determined the distribution of T6SSs across the genus Serratia and observed that a highly conserved antibacterial T6SS is differentially active between closely related clinical isolates of Serratia marcescens.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!