Mutagenic and genotoxic evaluation of bisphenol F diglycidyl ether (BFDGE) in prokaryotic and eukaryotic systems.

Mutat Res

Laboratorio de Microbioloxía, Instituto de Investigación e Análises Alimentarias, Universidade de Santiago de Compostela, Campus Sur s/n, 15782, Santiago de Compostela, Spain.

Published: April 2003

The epoxy resin bisphenol F diglycidyl ether (BFDGE), was examined for its mutagenicity in prokaryotic assays (Salmonella typhimurium His(-) and Escherichia coli Trp(-) tests) and its genotoxicity in eukaryotic systems (sister chromatid exchange (SCE) and micronucleus tests in human lymphocytes), in the presence or absence of an exogenous metabolizing system (S9 from rat liver). In the prokaryotic tests, the concentrations of BFDGE ranged between 100 and 5000 micro g per plate, and in the eukaryotic assays from 12.5 to 62.5 micro g/ml. The compound is able to induce mutagenic effects in bacterial strains TA100, TA1535, WP2uvrA and IC3327, as revealed by the increase observed in the number of induced revertants. With respect to the genotoxicity assays, BFDGE induces an increase in the frequency of sister chromatid exchanges and micronuclei in human peripheral blood lymphocytes.

Download full-text PDF

Source
http://dx.doi.org/10.1016/s1383-5718(03)00033-0DOI Listing

Publication Analysis

Top Keywords

bisphenol diglycidyl
8
diglycidyl ether
8
ether bfdge
8
eukaryotic systems
8
sister chromatid
8
mutagenic genotoxic
4
genotoxic evaluation
4
evaluation bisphenol
4
bfdge
4
bfdge prokaryotic
4

Similar Publications

Article Synopsis
  • The study evaluated low-stress resin-based composites (RBCs) and their stress relaxation mechanisms, comparing them to an experimental low-stress thiourethane (TU) material.
  • The experimental composites included a mix of different dimethacrylates and barium aluminosilicate filler, with tests on polymerization kinetics and stress relaxation conducted using advanced analytical techniques.
  • Results indicated that TU-modified RBCs exhibited significantly higher polymerization conversion rates and stress reduction capabilities compared to traditional materials, with the TU composites and SDR Flow+ showing the most effective stress relaxation.
View Article and Find Full Text PDF

Naphthalene is a fungicide that can also be a phase-change agent owing to its high crystallization enthalpy at about 80 °C. The relatively rapid evaporation of naphthalene as a fungicide and its shape instability after melting are problems solved in this work by its placement into a cured epoxy matrix. The work's research materials included diglycidyl ether of bisphenol A as an epoxy resin, 4,4'-diaminodiphenyl sulfone as its hardener, and naphthalene as a phase-change agent or a fungicide.

View Article and Find Full Text PDF

Probing the Nanostructure and Reactivity of Epoxy-Amine Interphases.

ACS Appl Mater Interfaces

December 2024

Corrosion@Manchester, Department of Materials, The University of Manchester, Nancy Rothwell Building, Oxford Road, Manchester M13 9PL, U.K.

Article Synopsis
  • Understanding the interphase regions in epoxy resins is crucial for enhancing their mechanical properties, like fracture strength and barrier performance, as these areas are often weak spots.
  • Conventional methods struggle to analyze these nanoscale regions, making it hard to understand their formation processes.
  • By using molecular dynamics simulations and infrared mapping, researchers discovered that binding interactions of the amine cross-linker with various metal oxide surfaces affect binding energies, while also revealing that an excess of reactive materials remains near the particles, indicating potential undercuring in the matrix.
View Article and Find Full Text PDF

A fully polydicyclopentadiene skeletonized epoxy resin system and its fundamental properties as an electronic material.

Chem Commun (Camb)

December 2024

School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Rd, Zhenjiang, 212013, China.

A low-cost fully dicyclopentadiene (DCPD)-networked epoxy system was designed. Compared to commercial diglycidyl ether of bisphenol-A epoxy resin counterparts, the cured DCPD-based resin demonstrates excellent thermal properties ( > 250 °C) and a low dissipation factor (0.0065 at 10 GHz), indicating its potential as a promising thermoset for high-performance electronic applications.

View Article and Find Full Text PDF
Article Synopsis
  • - The study examines the viscoelastic properties of epoxy matrix composites reinforced with different types and concentrations of carbon nanotubes (CNTs), focusing on pristine CNTs (EPB-CNT) and silane-modified multi-walled CNTs (EB-CNT) with varying amounts (0%, 1%, 2%, 4%).
  • - Key findings indicate that the silane modification leads to enhanced thermal and mechanical properties due to stronger interfacial interactions, with the highest performance seen in the ECB-CNT 4% composite, which displayed superior tensile strength and thermal stability.
  • - Various testing methods, including tensile tests, thermal analysis, and microscopic characterization, confirmed improved material distribution and reduced voids in ECB-CNT
View Article and Find Full Text PDF

Want 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!