Interaction of morin with CTMAB: aggregation and location in micellar

The aggregation and location of morin in CTMAB micellar solution was studie d by light scattering spectra, electronic absorption spectra and pulsed FT NMR techniques. The difference in the light scattering property of morin wi th and without CTMAB proved that a large particle of the morin-CTMAB associ ate formed. Morin has a self-assembly tendency, but the assembly number is not high. With the increase of morin concentration, morin changed from a mo nomer to dimer. The hyperchromic and bathochromic effect of morin, with the increase in pH value or CTMAB concentration indicated that CTMAB provided a base microenvironment. The changes in the chemical shifts of the individu al groups of protons in CTMAB indicated that the solubilization location of morin changes from the inner to the outer of the CTMAB micellar with an in crease in morin concentration. (C) 2001 Elsevier Science B.V. All rights re served.