Biomaterial Database

Rheological properties of contraceptive gels. 2000

D H Owen, and J J Peters, and D F Katz

Department of Biomedical Engineering, Duke University, Durham, NC, USA. dhowen@acpub.duke.edu

The rheological properties of 4 commercially available contraceptive drug delivery gels and their dilutions with a vaginal fluid simulant were measured. These properties govern the critical functions of spreading and retention of these gels over the vaginal surfaces. Measurements made on Conceptrol, KY Plus, Gynol II, and Advantage-S included stress growth, stress relaxation and residual stress, and the shear rate dependence of viscosity. All gels exhibited non-Newtonian behavior including shear thinning and viscoelasticity. Conceptrol and Gynol II had no residual stress, while both KY Plus and Advantage-S did. The gels differed in their response to dilution with vaginal fluid simulant.

UI	MeSH Term	Description	Entries
D001826	Body Fluids	Liquid components of living organisms.	Body Fluid,Fluid, Body,Fluids, Body
D002266	Carboxymethylcellulose Sodium	A cellulose derivative which is a beta-(1,4)-D-glucopyranose polymer. It is used as a bulk laxative and as an emulsifier and thickener in cosmetics and pharmaceuticals and as a stabilizer for reagents.	Carboxymethyl Cellulose,Carboxymethylcellulose,Aquacel,Aquaplast,Carmellose Sodium,Cellolax,Cethylose,Croscarmellose Sodium,Polycell,Ruspol,Sodium Carboxymethylcellulose,Carboxymethylcellulose, Sodium,Cellulose, Carboxymethyl,Sodium, Carboxymethylcellulose,Sodium, Carmellose,Sodium, Croscarmellose
D002626	Chemistry, Pharmaceutical	Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.	Medicinal Chemistry,Chemistry, Pharmaceutic,Pharmaceutic Chemistry,Pharmaceutical Chemistry,Chemistry, Medicinal
D005260	Female		Females
D005782	Gels	Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol.
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000180	Acrylic Resins	Polymers of high molecular weight which are derived from acrylic acid, methacrylic acid or other related compounds and are capable of being molded and then hardened to form useful components.	Acrylic Resin,Resin, Acrylic,Resins, Acrylic
D012212	Rheology	The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.	Flowmetry,Velocimetry,Velocimetries
D013089	Spermatocidal Agents	Chemical substances that are destructive to spermatozoa used as topically administered vaginal contraceptives.	Spermicidal Agents,Contraceptive Agents, Spermatocidal,Spermatocidal Drugs,Spermatocides,Spermicidal Contraceptive Agents,Vaginal Spermicides,Agents, Spermatocidal,Agents, Spermatocidal Contraceptive,Agents, Spermicidal,Agents, Spermicidal Contraceptive,Contraceptive Agents, Spermicidal,Drugs, Spermatocidal,Spermatocidal Contraceptive Agents,Spermicides, Vaginal
D014621	Vagina	The genital canal in the female, extending from the UTERUS to the VULVA. (Stedman, 25th ed)	Vaginas