PMID: 16624770Apr 21, 2006Paper

Preparation and electron microscopic observation of lidocaine microemulsion

Nan fang yi ke da xue xue bao = Journal of Southern Medical University
Xiao-liang ZhuKang Zeng

Abstract

To prepare and determine the proportion of the components of lidocaine microemulsion. Pseudoternary phase diagrams of the prepared lidocaine microemulsion with different Km (surfactant/cosurfactant) were generated to determine the optimal Km according to the size of the microemulsion area. The diameter and its distribution range, viscosity, electric conductivity and refractivity of lidocaine microemulsion drop was determined, and the appearance and system type of the microemulsion was observed using electron microscope. RESULTS; Maximum microemulsion area in the pseudoternary phase diagrams was obtained with the Km of 3, and the drop size of the microemulsion averaged 29.8+/-14.4 nm (with up to 98% of the drop size ranging between 15.1-45.5 nm and 2% between 77.9-261.3 nm). At 25 degrees C, the viscosity, electric conductivity and refractivity of the microemulsion was 25 mPa.S, 130 micros/cm and 1.473, respectively, and the lidocaine microemulsion was identified to belong to O/W type. The microemulsion drop appeared in spherical shape of heterogeneous sizes in a multi-disperse system. The optimal proportion of the components in lidocaine microemulsion can be obtained by analyzing pseudoternary phase diagrams, and the drop size,...Continue Reading

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Yao xue xue bao = Acta pharmaceutica Sinica
Shi-rui MaoDian-zhou Bi
Nan fang yi ke da xue xue bao = Journal of Southern Medical University
Liang HuangChan Liu
Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition
Zi-Wei LiDan-Dan Gu
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica
Lisheng WangZongfeng Shi
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica
Shuangying GuiJun Wang
© 2022 Meta ULC. All rights reserved