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The synthesis and characterization of a ‘complete set’ of positional isomers of tetrakis(perfluorophenyl)porphyrins (TFPP)-glucose conjugates ( 1OH , 2OH , 3OH , 4OH , and 6OH ) are reported herein. The cellular uptake and photocytotoxicity of these conjugates were examined in order to investigate the influence of location of the TFPP moiety on the d -glucose molecule on the biological activity of the conjugates. An In vitro biological evaluation revealed that the certain of these isomers have a greater effect on cellular uptake and cytotoxicity than others. The TFPP-glucose conjugates 1OH , 3OH , and 4OH were found to exert exceptional photocytotoxicity in several types of cancer cells compared to 2OH and 6OH substituted isomers. [ABSTRACT FROM AUTHOR]

The utilization of organic dicarbocyanine dye-conjugated molecules, specifically 1,1′-diethyl-4,4′-dicarbocyanine iodide (DDCI-4), as the sensing film in capacitive-type humidity sensors has been demonstrated. The structural, morphological, and wettability characteristics of the sensing films as well as the performance of the electrode gaps of the devices were analyzed. Aluminum (Al)/DDCI-4/Al capacitive humidity sensors were fabricated using solution-processed spin coating techniques in a planar geometry. In this study, a surface profiler was used to measure the size of electrode gaps, which were 94.87 ± 1.20 µm, 391.00 ± 1.53 µm, 902.00 ± 2.08 µm, and 1906.67 ± 3.33 µm. Compared to those with larger gaps (391 µm, 902 µm, and 1907 µm), the device with the smallest gap measured 45 ± 9.1 fF/%RH with the highest sensitivity. In addition, the hysteresis with response and recovery performances has been studied, revealing the lowest values of 0.31%, 6 s, and 9 s, respectively. It is anticipated that the 1,1′-diethyl-4,4′-dicarbocyanine iodide's electronic, ionic, and dipole polarizations are responsible for the excellent performance of dye-based organic humidity sensors. • Dicarbocyanine dye conjugated molecules as the sensing film in humidity sensors. • Dye-based humidity sensor possesses the highest sensitivity and low hysteresis. • Contribution of the electronic, ionic and dipole polarizations. [ABSTRACT FROM AUTHOR]