Excited state trans-cis photoisomerization via non-adiabatic dynamics of novel UVB protective sunscreens

TL;DR: In this article , the process of the excited state Intramolecular Proton Transfer (ESIPT) competition of Kaempferol and Quercetin in methanol was studied by means of the density functional theory (DFT) and the time-dependent Density Functional Theory (TDDFT).

TL;DR: Urocanic acid, a naturally occurring UV-absorbing compound, is reevaluated as a novel scaffold for next-gen sunscreens, leveraging its electronic properties and UV-absorbing capabilities under isolated conditions.

TL;DR: Water-soluble azo derivatives of lignin were synthesized by the azo coupling reaction using organosolv ethanol Lignin and diazonium salts based on sulfanilic acid and p-nitroaniline as mentioned in this paper .

TL;DR: The electronic excited-state hydrogen-bonding dynamics, which are predominantly determined by the vibrational motions of the hydrogen donor and acceptor groups, generally occur on ultrafast time scales of hundreds of femtoseconds as mentioned in this paper.

TL;DR: The research expands the understanding of the nature of hydrogen bonding by delineating the interaction between hydrogen bonds and photons, thereby providing a basis for excited-state hydrogen bonding studies in photophysics, photochemistry, and photobiology.

TL;DR: The properties of MG in vitro, including pigmentation inhibition in melanocytes, tyrosinase inhibition and selectivity, reduced cytotoxicity relative to HQ, and lack of mutagenic potential in mammalian cells, establish MG as a superior candidate skin-lightening agent.

TL;DR: A large variety of common methods for computing the properties of modern high-performance chromophores were surveyed and compared these results with prior experimental hyper-Rayleigh scattering (HRS) and absorbance data, suggesting composite methods could greatly improve the accuracy of calculations of β and λmax.