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328) This study investigated the preparation and characterization of glyceryl monooleate- (GMO) based drug delivery system containing ofloxacin for the treatment of otitis externa.
* Glyceryl monooleate-based otic delivery system of ofloxacin: release profile and bactericidal activity.
- This study investigated the preparation and characterization of glyceryl monooleate- (GMO) based drug delivery system containing ofloxacin for the treatment of otitis externa. Acetate buffer (pH 4.5) containing dissolved ofloxacin was added to molten GMO as an aqueous phase, this resulted in the formation of a cubic and a reverse hexagonal phases. The release behavior of ofloxacin from the drug delivery system was studied using three different methods. The mechanism of drug release using paddles/dissolution apparatus and Franz diffusion cells followed Higuchi and Fickian diffusion models; whereas intrinsic release rate method showed zero-order kinetics. The intrinsic release rate was estimated and found to be 187.2 µg/cm(2)/h. The release mechanisms were similar irrespective of the loaded ofloxacin amount, however, the higher drug load displayed higher release rate. The drug delivery system was proven to be microbiologically effective by using agar diffusion method, against Staphylococcus aureus, and Pseudomonas aeruginosa. The GMO/ofloxacin formulation was stable for 6 months after preparation at room temperature as measured with respect to phase stability and antibacterial activity.
=>制度組織体系的方式, システム, 組織, 整然とした手順, (思想などの)体系, 体制
Overview of noun system
The noun system has 9 senses (first 8 from tagged texts)
1. (43) system -- (instrumentality that combines interrelated interacting artifacts designed to work
as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small
computer")
2. (23) system, scheme -- (a group of independent but interrelated elements comprising a unified
whole; "a vast system of production and distribution and consumption keep the country going")
3. (14) system -- ((physical chemistry) a sample of matter in which substances in different phases
are in equilibrium; "in a static system oil cannot be replaced by water on a surface"; "a system
generating hydrogen peroxide")
4. (10) system, system of rules -- (a complex of methods or rules governing behavior; "they have to
operate under a system they oppose"; "that language has a complex system for indicating gender")
5. (8) arrangement, organization, organisation, system -- (an organized structure for arranging or
classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the
organization of them that he was original"; "he tried to understand their system of classification")
6. (7) system -- (a group of physiologically or anatomically related organs or parts; "the body has
a system of organs for digestion")
7. (6) system -- (a procedure or process for obtaining an objective; "they had to devise a system
that did not depend on cooperation")
8. (1) system -- (the living body considered as made up of interdependent components forming a
unified whole; "exercise helped him get the alcohol out of his system")
9. organization, organisation, system -- (an ordered manner; orderliness by virtue of being
methodical and well organized; "his compulsive organization was not an endearing quality"; "we can't
do it unless we establish some system around here")
--- WordNet end ---