A water-soluble D–π–A chromophore based on dipicolinic acid: Synthesis, pH-dependent spectral properties and two-photon fluorescence cell imaging

A novel fluorescent molecule based on 1,8-naphthalimide: synthesis, spectral properties, and application in cell imaging

“…The absorption peak is observed at 355 nm for MEBN and 350 nm for 4-methoxy-N-butyl-1,8-naphthalimide (MBN) [4]. It can be seen that methoxyethoxy has stronger electron-donating ability than methoxy [4,[6][7][8]. The fluorescence spectra of MEBN are displayed in Fig.…”

Photodynamic therapy and two-photon bio-imaging applications of hydrophobic chromophores through amphiphilic polymer delivery

“…To that end, many synthetic endeavours have been focused to the functionalization of TPA chromophores with hydrosolubilizing moieties like polyethyleneglycols, 6,7 poly-carbohydrates, 8 cationic ammoniums, pyridinium, 9 or anionic sulfonate or carboxylate groups. 10 The resulting chromophores are generally good bioprobes, but the hydrosolubilization is achieved at a very high synthetic cost, which limits further commercialisation and clinical use.…”

Synthesis and Characterization of Spherical Aggregations of Organic-ZnS Hybrids

“…However, it remains a challenge to develop a rational method to construct the transition metal complex with a sulfur atom as a terminal ligand. The d-block metal Zn(II), a functional metal ion in almost 300 enzymes, will be an ideal ion of the transition metal complex [4,5]. Zn(II) has a closed-shell d 10 electronic configuration, it was anticipated that its coordination with the chromophore L would produce fluorescence characteristics dependent on the L ligand [6,7].…”