P11 Effects of ultrasonic irradiation on vesicle solutions(Poster Session)

Nomura Masaru, Yamaguchi Tsuyoshi, Matsuoka Tatsuro, Koda Shinobu

doi:10.20577/pamjss.15.0_67

Bibliographic Information

Other Title

P11 ベシクル水溶液に対する超音波照射効果の研究(ポスターセッション)

Abstract

In order to clarify the effect of sonication to vesicle solution, we performed two series of experiments. Ultrasound frequency we used was 480kHz in both experiments. In the first experiment, we measured fluorescence decay of pyrene dissolved in the aqueous solution of didodecyldimethylammonium bromide (DDAB) under ultrasonic irradiation. It was found that fluorescence decay was promoted by ultrasonic irradiation. Mechanism of quenching by bromine generated from the bromide ion which was the counter ion of DDAB was suggested. It was shown that the suggested mechanism did not contradict with the experiment with additional bromine and quantitative evaluation of the chemical effect by potassium iodide (KI) dosimetry. In the second experiment, we prepared aqueous solution of dilauroyl phosphatidylcholine (DLPC) and homogenized vesicle size by using extruder. Then, we performed ultrasonic irradiation and analyzed the size distribution by dynamic light scattering (DLS). Decrease of size to a diameter around 100nm was observed up to three hours, and substantial increase of size was observed afterwards.

Journal

Proceedings of the Annual Meeting of the Japan Society of Sonochemistry

Proceedings of the Annual Meeting of the Japan Society of Sonochemistry 15 (0), 67-68, 2006

Japan Society of Sonochemistry

Keywords

Details 詳細情報について

CRID: 1390282681029706496

NII Article ID: 110009710370

DOI: 10.20577/pamjss.15.0_67

ISSN: 24241512

Text Lang: ja

Data Source

JaLC
CiNii Articles

Abstract License Flag: Disallowed

Export