Luminescent dendrimers are currently attracting much attention since coupling luminescence and dendrimer research topics can lead to valuable new functions. Indeed, luminescence is a valuable tool to monitor both basic properties and possible applications (sensors, displays, lasers), and dendrimers are macromolecular compounds exhibiting a well-defined chemical structure with the possibility of containing selected chemical units in predetermined sites and of encapsulating ions or neutral molecules in their internal dynamic cavities. In this paper we will review recent advances in this field focusing our attention on their properties in fluid solution related to light harvesting, changing the "color" of light, sensing with signal amplification, quenching and sensitization processes, shielding effects, elucidation of dendritic structures and superstructures, and investigation of dendrimer rotation in solution.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/b11010 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Chiral Rotaxane-Branched Dendrimers as Relays in Artificial Light-Harvesting Systems with Boosted Circularly Polarized Luminescence.
Angew Chem Int Ed Engl
November 2024
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular and Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
Starting from AIEgen-functionalized chiral [2]rotaxane building block, we have successfully synthesized a new class of chiral rotaxane-branched dendrimers through controllable divergent strategy for the first time, based on which novel chiral artificial light-harvesting systems (LHSs) were successfully constructed in aqueous phase by sequentially introducing achiral donor and acceptor. More importantly, accompanied by the two-step Förster resonance energy transfer (FRET) process in the resultant artificial LHSs, the sequentially amplified circularly polarized luminescence (CPL) performances were achieved, highlighting that the chiral rotaxane-branched dendrimers could serve as excellent relay for both energy transfer and chirality transmission. Impressively, compared with the sole chiral rotaxane-branched dendrimers, the dissymmetry factors (g) values of the resultant artificial LHSs were amplified by one order of magnitude up to 0.
View Article and Find Full Text PDFA self-enhanced electrochemiluminescence aptasensor Zr-porphyrin modified with polyamidoamine for sensitive detection of lincomycin.
Food Chem
February 2025
Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China. Electronic address:
Exploring novel and sensitive analysis methods for monitoring lincomycin (Lin) residues is of great significance since overuse of it would cause a serious threat to public health. Herein, a Zr-porphyrin metal-organic frameworks (Zr-TCPP) with covalently modified polyamidoamine (PAMAM) dendrimers was synthesized as a novel intramolecular self-enhanced ECL reagent, which exhibited greatly improved ECL response due to the promotion of SO generation and the shortening of the electron transfer distance. Graphene oxide modified with gold nanoparticles (Au@GO) was synthesized as the quencher for the ECL sensor construction based on the quenching strategy.
View Article and Find Full Text PDFUnexpected full-color luminescence produced from the aggregation of unconventional chromophores in novel polyborosilazane dendrimers.
Chem Sci
October 2024
The State Key Laboratory of Refractories and Metallurgy, Key Laboratory of High Temperature Electromagnetic Materials and Structure of MOE, Wuhan University of Science and Technology Wuhan 430081 PR China
Non-conjugated fluorescent polymers (NCPLs) are of interest due to their remarkable biocompatibility, processability and biodegradability. However, the realization of multicolor emitting NCPLs through structure modulation remains a great challenge. In this work, a series of novel yttrium-branched polyborosilazane (PBSZ) structures (PY1-PY3) were prepared.
View Article and Find Full Text PDFPotential-resolved ratiometric electrochemiluminescence detection for prostate-specific antigen based on CdS nanocrystals modified on carbon nanotubes and luminol functionalized nanocomposites.
Anal Bioanal Chem
November 2024
Anhui Province Key Laboratory of Conservation and Utilization for Dabie Mountain Special Bio-Resources, School of Materials and Chemical Engineering, West Anhui University, Lu'an, 237012, Anhui, China.
A ratiometric electrochemiluminescence (ECL) aptamer-based sensing platform was fabricated for prostate-specific antigen (PSA) determination. Activated CdS nanocrystals/multi-walled carbon nanotubes (CdS/MCNTs) and luminol-Pt/PAMAM nanocomposites (L-Pt/PAMAM NCs) were synthesized and used as cathodic and anodic ECL emitters, respectively. Amino group-modified aptamers were assembled on carboxylated magnetic beads, followed by hybridization with probe DNA functionalized L-Pt/PAMAM NCs.
View Article and Find Full Text PDFEndo-Encapsulated Multi-Resonance Dendrimers with Through-Space Interactions for Efficient Narrowband Blue-Emitting Solution-Processed OLEDs.
Angew Chem Int Ed Engl
October 2024
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022, Changchun, P. R. China.
Different from conventional luminescent dendrimers with fluorophore tethered outside to dendron, here we first developed endo-encapsulated luminescent dendrimers with multi-resonance (MR) fluorophore embedded inside of carbazole dendrons by growing dendrons through 1,8-positions of central carbazole moiety to create a cavity for accommodating the fluorophore. This endo-encapsulated structure not only shields the fluorophore to fully resist aggregation-caused spectral broadening, but also induce through-space interactions between dendron and fluorophore via intramolecular π-stacking, giving lowered singlet state energy and reduced singlet-triplet energy splitting to accelerate reverse intersystem crossing (RISC) from triplet to singlet states. The resultant dendrimer containing 1,8-linked second-generation carbazole dendrons and boron, sulfur-doped polycyclic MR fluorophore exhibits narrowband blue emission at 471 nm with FWHM kept at 34 nm even in neat film, together with ~4 times enhancement of RISC rate constant compared to its exo-tethered counterpart.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!