diffusionofaceticacidacrossoilwaterinterfaceinemulsificationinternalgelationprocessforpreparationofalginategelbeads

	diffusionofaceticacidacrossoilwaterinterfaceinemulsificationinternalgelationprocessforpreparationofalginategelbeads
	LIU Xiudong; YU Weiting; LIN Junzhang; MA Xiaojun; YUAN Quan
刊名	chemicalresearchinchineseuniversities
	2007-01-01
卷号	23 期号:5 页码:579
ISSN号	1005-9040
英文摘要	Alginate has been widely used in cell microencapsulation and drug delivery systems in the form of gel beads or microcapsules. Although an alternative novel emulsification-internal gelation technology has been established and both the properties and the potential applications of the beads in drug delivery systems have been studied, the mechanism has not been well understood compared with the traditional droplet method( external gelation technology). On the basis of our previous knowledge that the novel technology is composed of complicatedly consecutive processes with multistep diffusion and reaction, and the diffusion of acetic acid across oil/water interface being the prerequisite that determines the occurrence and rate for the reactions and the structures and properties of final produced gel beads, a special emphasis was placed on the diffusion process. With the aid of diffusion modeling and simple experimental design, the diffusion rate constant and diffusion coefficient of acetic acid across oil/water interface were determined to be in the orders of magnitude of 10(-6) and 10(-16), respectively. This knowledge will be of particular importance in understanding and interpreting the formation, structure of the gel beads and the relationship between the structure and properties and guiding the preparation and quality control of the gel beads.
语种	英语
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/177864]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	LIU Xiudong,YU Weiting,LIN Junzhang,et al. diffusionofaceticacidacrossoilwaterinterfaceinemulsificationinternalgelationprocessforpreparationofalginategelbeads[J]. chemicalresearchinchineseuniversities,2007,23(5):579.
APA	LIU Xiudong,YU Weiting,LIN Junzhang,MA Xiaojun,&YUAN Quan.(2007).diffusionofaceticacidacrossoilwaterinterfaceinemulsificationinternalgelationprocessforpreparationofalginategelbeads.chemicalresearchinchineseuniversities,23(5),579.
MLA	LIU Xiudong,et al."diffusionofaceticacidacrossoilwaterinterfaceinemulsificationinternalgelationprocessforpreparationofalginategelbeads".chemicalresearchinchineseuniversities 23.5(2007):579.