ABSTRACT
A dual-stimuli responsive, wormlike micelle system was developed using a switchable selenium-containing surfactant, dihendecylcarboxylic acid sodium selenide (C11-Se-C11), and a commercially available surfactant, cetyltrimethyl ammonium bromide (CTAB). The solution showed a viscoelastic characteristic at low shear frequencies, and the synergism was significant when the concentrations of CTAB and C11-Se-C11 were 145 mM and 25 mM, respectively. Additionally, the system was fast and reversibly responded to CO2 and redox dual stimuli, and it showed a circulatory gel/sol transition, which reflected changes in the self-assembly from entangled worms to rodlike micelles. Moreover, these transitions were switchable at least three times. The dual responsiveness of the solution allowed for precise control of the wormlike micelles, and these micelles will have a wide range of applications in the development of functional materials for pharmaceutical or biomedical materials.
ABSTRACT
PREMISE OF THE STUDY: Microsatellite primers were developed for Parthenium hysterophorus to investigate its genetic structure and genetic diversity. METHODS AND RESULTS: Using the combined biotin capture method, 15 microsatellite primer sets were isolated and characterized. All markers showed polymorphism, and the number of alleles per locus ranged from two to nine across 60 individuals from two populations. The observed and expected heterozygosities ranged from 0.117 to 0.750 and from 0.182 to 0.835, respectively. CONCLUSIONS: These markers will be useful for investigating the invasion history of this weed globally and to help characterize its invasiveness.
