Abstract The purpose of this study was to determine the possible mutagenicity hair dye using auxotroph’s methionine Proteus Mirabilis as a test. Ames test employed identify reverse mutations in P. treated with dyes. results demonstrated significant increase (P< 0.05) colonies mirabilis 250 and 500 mg/mL dyes comparison negative control. Reverse metE gene were identified DNA sequencing polyme...

Pollutants in dye wastewater significantly vary due to the large number of dyes and other chemical compounds used in dyeing processes. The major compounds in dye wastewater are desizing and scouring agents, bleaches, reducing agents, detergents and wetting agents, finishing agents, organic acids and dyes, and fluorescent brighteners1). Physical, chemical and biological methods have been applied...

Molecular beacons are efficient and useful tools for quantitative detection of specific target nucleic acids. Thanks to their simple protocol, molecular beacons have great potential as substrates for biomolecular computing. Here we present a molecular beacon-based biomolecular computing method for quantitative detection and analysis of target nucleic acids. Whereas the conventional quantitative...

Since the pioneer demonstration in 1947 by Miller and Miller (8) of the incorporation of the carcinogen 4-dimethylaminoazobenzene (DAB) into protein of the target organ, rat liver, a growing body of evidence has accumulated which suggests that carcinogen binding is of causal significance in carcinogenesis (5, 9, 10). The importance of these findings has stimulated much further research into thi...

Caged organic fluorophores are established tools for localization-based super-resolution imaging. Their use relies on reversible deactivation of standard organic fluorophores by chemical reduction or commercially available caged dyes with ON switching of the fluorescent signal by ultraviolet (UV) light. Here, we establish caging of cyanine fluorophores and caged rhodamine dyes, i.e., chemical d...