Tuning the Photophysical Properties of BODIPY Dyes and Studying Their Self-Assembly via Hydrogen Bonding.

Here, BODIPY derivatives were functionalized with barbituric acid, which has multiple hydrogen bonding abilities that are directional, to have highly ordered hydrogen bond-mediated self-assembled structures to tune BODIPY's photophysical properties. The synthesis of barbituric acid-functionalized BODIPY derivatives via Vilsmeier and Knoevenagel reactions was achieved, and the resulting compounds were characterized with FT-IR, H NMR, C NMR spectroscopy, and mass spectrometry. Hydrogen bond-mediated self-assembled structures were investigated through UV-vis and fluorescence spectrophotometry, H NMR spectroscopy, and a dynamic light scattering method in solution.

Photodynamic inactivation of using tetraethylene glycol-substituted Zn(II) phthalocyanine.

Methicillin resistant infections are increasing, especially in intensive care units. A new method for photodynamic inactivation (PDI) generates reactive oxygen species by photosensitization to kill bacteria. We investigated the PDI effect of tetraethylene glycol-substituted Zn(II) phthalocyanine (TEG-P) on strains including two standards (ATCC 25923 and ATCC 43400) and 20 clinically isolated methicillin sensitive and 20 methicillin resistance strains.

A Solution-Processable Liquid-Crystalline Semiconductor for Low-Temperature-Annealed Air-Stable N-Channel Field-Effect Transistors.

A new solution-processable and air-stable liquid-crystalline n-channel organic semiconductor (2,2'-(2,8-bis(5-(2-octyldodecyl)thiophen-2-yl)indeno[1,2-b]fluorene-6,12-diylidene)dimalononitrile, α,ω-2OD-TIFDMT) with donor-acceptor-donor (D-A-D) π conjugation has been designed, synthesized, and fully characterized. The new semiconductor exhibits a low LUMO energy (-4.19 eV) and a narrow optical bandgap (1.