Stimuli-responsive fluorescent hyperbranched poly(amido amine)s for biosensing applications

Fluorescent phosphine oxide-containing hyperbranched polyesters: design, synthesis and their application for Fe3+detection

“…Three emission peaks ( λ em = 388, 410, and 432 nm) of the HBP s can probably be attributed to the multiple species of the clusters. 41,48 According to the results shown in Fig. S9 (ESI†), it seems that electron-rich groups, including –S–, PO and –Ph, play an important role in the excitation emission process, which is different from the results of theoretical calculations for aliphatic polyesters.…”

Anti-Counterfeiting Inks Based on Förster Resonance Energy Transfer in Microcrystalline Cellulose-Grafted Poly(amidoamine) for Artificial Industries

“…Although fluorescent probes have been prepared using PAMAM dendrimers, 13−15 weakly intrinsic fluorescence of the PAMAM dendrimers has also been reported. 16,17 The Nbranched tertiary amine groups and their oxidation are the sources of luminescence properties in PAMAM dendrimers. 18,19 The PAMAM dendrimers have chemically been modified with photoactive groups to incorporate different photoluminescent properties.…”

“…PAMAM, as the earliest type of dendrimers, has different morphological architectures from conventional polymers. Although fluorescent probes have been prepared using PAMAM dendrimers, − weakly intrinsic fluorescence of the PAMAM dendrimers has also been reported. , The N-branched tertiary amine groups and their oxidation are the sources of luminescence properties in PAMAM dendrimers. , The PAMAM dendrimers have chemically been modified with photoactive groups to incorporate different photoluminescent properties. − The dendritic fluorescent PAMAM chemosensors have been designed for sensing applications. , Fluorescence chemosensors contain a fluorophore as a signaling unit, a receptor as a recognition unit, and a mechanism for the connection between them. − Staneva and co-workers reported the first synthesis of the photoactive-modified first generation of PAMAM dendrimers as fluorescence chemosensors for metal cations and protons. They modified the first generation of PAMAM dendrimers via 4- N , N -dimethylaminoethyloxy-1,8-naphthalimide units.…”

pH‐responsive amine‐based fluorescent polymers with on–off switchable and concentration‐dependent fluorescence behaviors

“…The first reported amine‐based fluorescent polymers with emission under acidic conditions was dendritic polyamidoamines (PAMAM) 45 . Later on, the pH‐dependent fluorescence emission properties of amine‐based fluorescent polymers were expanded to include hyperbranched PAMAM, 46,47 hyperbranched poly(amino ester)s, 48–50 poly(ethyleneimine), 51 dendritic poly(propyleneimine), 52 and dendritic polyureas, 53 among others 54,55 . In addition, amine‐based fluorescent polymers may potentially be reversible fluorescence responsive to pH owing to the existence of the protonation/deprotonation process of amine groups, 56 however, the reversible pH‐responsive fluorescence behavior of amine‐based fluorescent polymers has rarely been reported.…”