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dc.contributor.authorBurgos Fernández, Francisco Javier
dc.contributor.authorGuaus Guerrero, Ester
dc.contributor.authorMartínez, Cristina
dc.contributor.authorVilaseca Ricart, Meritxell
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Òptica i Optometria
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.identifier.citationBurgos, F. J. [et al.]. Terahertz-based system for dehydration analysis of hydrogel contact lenses. "Optica applicata", 2019, vol. 49, núm. 4, p. 571-584.
dc.description.abstractThe use of terahertz-based techniques has grown very fast since they are capable of performingevaluations at molecular level, being very suitable for the analysis of biological samples and bioma-terials such as those for contact lenses. These biomaterials are continuously evolving to enhancethe lens wearer’s comfort by improving their hydration state and surface wettability. Therefore, thisstudy examines a novel terahertz system for the assessment of the temporary in vitro dehydrationof hydrogel contact lenses, which provides a new index to assess their state of hydration. Severalconventional and silicone hydrogel contact lenses and lens care solutions were analysed. Traditionalmethods such as the gravimetric determination of water content and the measurement of the staticcontact angle were also carried out for the validation of the developed system. The dehydrationrate measurements of contact lenses obtained with the proposed system correlated with the valuesprovided by traditional methods. As a whole, conventional hydrogel contact lenses exhibited thelowest values for dehydration rate. The tests conducted on various solutions showed a correlationbetween the wetting action of the solution and the dehydration rate of the contact lens material.
dc.format.extent14 p.
dc.rightsAttribution 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Ciències de la visió::Contactologia
dc.subject.lcshContact lenses
dc.subject.lcshSolution (Chemistry)
dc.subject.otherTerahertz radiation
dc.subject.otherTerahertz systems
dc.subject.otherHydrogel contact lens dehydration
dc.subject.otherWater content
dc.subject.otherLens care solutions
dc.titleTerahertz-based system for dehydration analysis of hydrogel contact lenses
dc.subject.lemacLents de contacte
dc.subject.lemacSolució (Química)
dc.contributor.groupUniversitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica
dc.contributor.groupUniversitat Politècnica de Catalunya. GBMI - Grup de Biotecnologia Molecular i Industrial
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorBurgos, Francisco J.; Guaus, E.; Martínez, C.; Vilaseca, M.
local.citation.publicationNameOptica applicata

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Attribution 3.0 Spain
Llevat que s'hi indiqui el contrari, els continguts d'aquesta obra estan subjectes a la llicència de Creative Commons : Reconeixement 3.0 Espanya