Affiliations: [a] Biofluid Mechanics Laboratory, Deparunent of Civil Engineering, University of Utah, 3220 MEB, Salt Lake City, Utah 84112, USA Tel.: (801)581-6955; Fax: (801) 585-5477; E-mail: m.k.sharp@m.cc.utah.edu | [b] Commercial Chemistry, Salt Lake City, Utah 84121, USA | [c] Physiological Transport Studies Laboratory, Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
Abstract: A transparent viscoelastic blood analog fluid was developed for use with Laser-Induced Photochemical Anemometry. To provide solubility of the photochemical tracer, 1’, 3’, 3’-trimethyl-6-nitroindoline-2-spiro-2-benzopyran (TNSB dye, Kodak Chemicals), the analog solvent needed to be nonpolar, thus currently available aqueous blood analogs were not suitable. An analog consisting of 0.04% ethylhydroxyethylcellulose dissolved in gamma-butyrolactone produced a pseudoplastic steady shear response with low elasticity in unsteady shear, while being compatible with the photochemical tracer.
