title: Functionalised alginate flow seeding microparticles for use in Particle Image Velocimetry (PIV).
abstract: Alginate microparticles as flow seeding fulfil all the requirements that are recommended for the velocity measurements in Particle Image Velocimetry (PIV). These spherical microparticles offer the advantage of being environmentally friendly, having excellent seeding properties and they can be produced via a very simple process. In the present study, the performances of alginate microparticles functionalised with a fluorescent dye, Rhodamine B (RhB), for PIV have been studied. The efficacy of fluorescence is appreciated in a number of PIV applications since it can boost the signal-to-noise ratio. Alginate microparticles functionalised with RhB have high emission efficiency, desirable match with fluid density and controlled size. The study of the particles behaviour in strong acid and basic solutions and ammonia is also included. This type of particles can be used for measurements with PIV and Planar Laser Induced Fluorescence (PLIF) simultaneously, including acid-base reactions.
authors.affiliation: a Department d'Enginyeria Mecànica , ECoMMFiT, Universitat Rovira I Virgili , Tarragona , Spain ;
authors.forename: Sylvana
authors.initials: S
authors.lastname: Varela
authors.affiliation: a Department d'Enginyeria Mecànica , ECoMMFiT, Universitat Rovira I Virgili , Tarragona , Spain ;
authors.forename: Isaac
authors.initials: I
authors.lastname: Balagué
authors.affiliation: a Department d'Enginyeria Mecànica , ECoMMFiT, Universitat Rovira I Virgili , Tarragona , Spain ;
authors.forename: Irene
authors.initials: I
authors.lastname: Sancho
authors.affiliation: a Department d'Enginyeria Mecànica , ECoMMFiT, Universitat Rovira I Virgili , Tarragona , Spain ;
authors.forename: Nihal
authors.initials: N
authors.lastname: Ertürk
authors.affiliation: b Department d'Enginyeria Química , Food Innovation & Engineering, Universitat Rovira I Virgili , Tarragona , Spain.
authors.forename: Montserrat
authors.initials: M
authors.lastname: Ferrando
authors.affiliation: a Department d'Enginyeria Mecànica , ECoMMFiT, Universitat Rovira I Virgili , Tarragona , Spain ;
authors.forename: Anton
authors.initials: A
authors.lastname: Vernet
mesh_terms: D000464:Alginates / Q000737:chemistry*; D004867:Equipment Design; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D010316:Particle Size; D012212:Rheology / Q000295:instrumentation / Q000379:methods*; D012235:Rhodamines / Q000737:chemistry*
chemical_list: D000464:Alginates; D005456:Fluorescent Dyes; D006603:Hexuronic Acids; D012235:Rhodamines; D020723:Glucuronic Acid; C029773:rhodamine B
keywords: Alginate; encapsulation; image analysis