A dye composition dissolvable within a liquid crystal host device (including: polymer dispersed liquid crystal, polymer network liquid crystal, polymer stabilized liquid crystal, liquid crystal displays and similar devices), comprising eutectic mixtures of dichroic metallomesogen molecules. The aforesaid metallomesogen molecules comprise chromophore groups synthesized by physical and chemical mixing methods.
modification of the side chain, the obtained TSEO3 exhibited enhanced two-photon activity and considerable two-photon imaging in vitro and in vivo. It manifested that appropriate modifications of side chains that are linked to conjugated frameworks can improve the intermolecular packing order and boost charge transfer favoring two-photon activity.
Preparation, Photophysical and Electrochemical Evaluation of an Azaborondipyrromethene/Zinc Porphyrin/Graphene Supramolecular Nanoensemble
作者:Georgios Rotas、Michael B. Thomas、Ruben Canton‐Vitoria、Francis D'Souza、Nikos Tagmatarchis
DOI:10.1002/chem.202000174
日期:2020.5.20
thermogravimetric analysis, Raman as well as steady-state and time-resolved absorption and emission spectroscopy. The photophysical and electrochemical assessment of ABDP/ZnTPP/GR as well as the binding properties of the ABDP/ZnTPP complex, employed as a reference, are presented. Energy and electron transfer events were observed in ABDP/ZnTPP upon photoexcitation. However, in the case of ABDP/ZnTPP/GR, the graphene-induced
Rational Design and Synthesis of 4-O-Substituted Phenylmethylenethiosemicarbazones as Novel Tyrosinase Inhibitors
作者:Wei Yi、Rihui Cao、Zhiyong Chen、Liang Yu、Huan Wen、Qin Yan、Lin Ma、Huacan Song
DOI:10.1248/cpb.58.752
日期:——
In continuing our program aimed to search for tyrosinase inhibitors, a series of novel 4-O-substituted phenylmethylenethiosemicarbazones were rational designed, synthesized and their inhibitory effects on the diphenolase activity of mushroom tyrosinase were also evaluated. A fair number of compounds were found to have significant tyrosinase inhibitiory activity. Particularly, the IC50 values of compounds 3a—g, 3j and 3s were of the same magnitude as tropolone, one of the best tyrosinase inhibitors known so far. Furthermore, the structure–activity relationships of these compounds were also investigated. All these data suggested that these molecules might be utilized for the development of new candidate for the treatment of dermatological disorders, and further development of such compounds may be of interest.