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Optical and Electrical Characterization of Biocompatible Polymeric Lines for Hemodialysis Applications |pdf=|usr=}}{{29547575 }} gab.com Text Optical and Electrical Characterization of Biocompatible Polymeric Lines for Hemodialysis Applications JO: Materials (Basel) http://www.kidney.de/pget.php?&tw=1&pmid=29547575 #FOAvip During hemodialysis (HD), blood is circulated through an extracorporeal tubing system (bloodline) made of medical-grade polymeric material. Sensors of various types that do not come into contact with blood (optical, electromagnetic, etc.) are applied directly across the bloodline for clinical purposes and for therapy customization. Thus, a detailed knowledge of the bloodline's physical properties is useful for the development of next-generation HD sensors. In this work, we performed a novel comparative analysis of the materials used by the manufacturers of the bloodlines. We focused on signals and characterization techniques matching those of the abovementioned sensors; consequently, this is an application-specific study of the optical and electrical characterization of bloodline material. Such properties are analyzed and compared for bloodlines from seven different manufacturers by optical absorbance spectroscopy and electrical impedance spectroscopy (EIS). Absorbance spectrum measurements are carried out in the VIS-NIR range. Absorbance spectra are pre-processed and data from both types of analyses are normalized with respect to sample thickness. Optical analysis shows that all bloodlines except one have similarly shaped spectra with slight quantitative differences. In all optical spectra, we find a decreasing trend of specific absorption from 0.14 mm(-1) at 400 nm to 0.06 mm(-1) at 1000 nm, with an absorption peak at 915 nm. In one case, a large absorption peak centered at ?600 nm is found. Electrical analysis shows that all bloodlines have the electrical properties of a constant-phase element (CPE), with statistically significant differences in parameters' values. Estimation of electrical CPE parameters for all bloodline returns a range of 0.942-0.957 for parameter n and a range of 12.41-16.64 for parameter Q?'. In conclusion, we find that, although some statistically significant differences are present, bloodlines from a representative group of manufacturers share similar electrical and optical properties. Therefore, contactless sensing devices developed for HD will work on different bloodlines if a simple recalibration is performed. Twit Text FOAVip Optical and Electrical Characterization of Biocompatible Polymeric Lines for Hemodialysis Applications ????Materials (Basel) http://www.kidney.de/pget.php?&tw=1&pmid=29547575 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=29547575 #FOAvip English Wikipedia <ref>{{Cite pmid|29547575 }}</ref> Optical and Electrical Characterization of Biocompatible Polymeric Lines for Hemodialysis Applications #MMPMID29547575 Ravagli E ; Severi S Materials (Basel) 2018[Mar]; 11 (3 ): ä PMID29547575 show ga During hemodialysis (HD), blood is circulated through an extracorporeal tubing system (bloodline) made of medical-grade polymeric material. Sensors of various types that do not come into contact with blood (optical, electromagnetic, etc.) are applied directly across the bloodline for clinical purposes and for therapy customization. Thus, a detailed knowledge of the bloodline's physical properties is useful for the development of next-generation HD sensors. In this work, we performed a novel comparative analysis of the materials used by the manufacturers of the bloodlines. We focused on signals and characterization techniques matching those of the abovementioned sensors; consequently, this is an application-specific study of the optical and electrical characterization of bloodline material. Such properties are analyzed and compared for bloodlines from seven different manufacturers by optical absorbance spectroscopy and electrical impedance spectroscopy (EIS). Absorbance spectrum measurements are carried out in the VIS-NIR range. Absorbance spectra are pre-processed and data from both types of analyses are normalized with respect to sample thickness. Optical analysis shows that all bloodlines except one have similarly shaped spectra with slight quantitative differences. In all optical spectra, we find a decreasing trend of specific absorption from 0.14 mm(-1) at 400 nm to 0.06 mm(-1) at 1000 nm, with an absorption peak at 915 nm. In one case, a large absorption peak centered at ?600 nm is found. Electrical analysis shows that all bloodlines have the electrical properties of a constant-phase element (CPE), with statistically significant differences in parameters' values. Estimation of electrical CPE parameters for all bloodline returns a range of 0.942-0.957 for parameter n and a range of 12.41-16.64 for parameter Q?'. In conclusion, we find that, although some statistically significant differences are present, bloodlines from a representative group of manufacturers share similar electrical and optical properties. Therefore, contactless sensing devices developed for HD will work on different bloodlines if a simple recalibration is performed. äOptical and Electrical Characterization of Biocompatible Polymeric Lin(epmc).pdf DeepDyve Pubget Overpricing