Singh, AKarsten, AEMputle, IChetty, ANaidoo, Kersch2009-11-022009-11-022009-07Singh, A, Karsten, AE, Mputle I et al. 2009. Determination of the optical properties of PNIPAAm gels used in biological applications. ECBO 2009: European Conference on Biomedical Optics, Munich, 14–18 June 2009, pp 1-79780819476494http://hdl.handle.net/10204/3707ECBO 2009: European Conference on Biomedical Optics, Munich, 14–18 June 2009Poly(N-isopropylacrylamide) that is PNIPAAm is a temperature sensitive smart material which displays a lower critical solution temperature (LCST) at 33-35oC. At the lower critical solution temperature, the gel changes from hydrophilic to hydrophobic which has significant consequences in cell culturing. The first known measurements of the optical properties that is absorption (µa) and reduced scattering (µ's) coefficients, as a function of temperature, of a series of crosslinked PNIPAAm gels, using an integrating sphere setup, is presented at a wavelength of 632.8 nm. These properties showed a direct correlation between the scattering coefficient and the crosslinker density for the gels. The absorption properties correlated well with the known absorption characteristics of these gels.enOptical propertiesPoly(N-isopropylacrylamide)PNIPAAm gelsReduced scattering coefficientLight propagationAbsorptionBiomedical opticsBiological applicationsHydrophilicHydrophobicConference PresentationSingh, A., Karsten, A., Mputle, I., Chetty, A., & Naidoo, K. (2009). Determination of the optical properties of PNIPAAm gels used in biological applications. http://hdl.handle.net/10204/3707Singh, A, AE Karsten, I Mputle, A Chetty, and Kersch Naidoo. "Determination of the optical properties of PNIPAAm gels used in biological applications." (2009): http://hdl.handle.net/10204/3707Singh A, Karsten A, Mputle I, Chetty A, Naidoo K, Determination of the optical properties of PNIPAAm gels used in biological applications; 2009. http://hdl.handle.net/10204/3707 .TY - Conference Presentation AU - Singh, A AU - Karsten, AE AU - Mputle, I AU - Chetty, A AU - Naidoo, Kersch AB - Poly(N-isopropylacrylamide) that is PNIPAAm is a temperature sensitive smart material which displays a lower critical solution temperature (LCST) at 33-35oC. At the lower critical solution temperature, the gel changes from hydrophilic to hydrophobic which has significant consequences in cell culturing. The first known measurements of the optical properties that is absorption (µa) and reduced scattering (µ's) coefficients, as a function of temperature, of a series of crosslinked PNIPAAm gels, using an integrating sphere setup, is presented at a wavelength of 632.8 nm. These properties showed a direct correlation between the scattering coefficient and the crosslinker density for the gels. The absorption properties correlated well with the known absorption characteristics of these gels. DA - 2009-07 DB - ResearchSpace DP - CSIR KW - Optical properties KW - Poly(N-isopropylacrylamide) KW - PNIPAAm gels KW - Reduced scattering coefficient KW - Light propagation KW - Absorption KW - Biomedical optics KW - Biological applications KW - Hydrophilic KW - Hydrophobic LK - https://researchspace.csir.co.za PY - 2009 SM - 9780819476494 T1 - Determination of the optical properties of PNIPAAm gels used in biological applications TI - Determination of the optical properties of PNIPAAm gels used in biological applications UR - http://hdl.handle.net/10204/3707 ER -