98%
921
2 minutes
20
Polypyrrole (PPy) has attracted widespread attention due to its excellent environmental stability, high conductivity, simple synthesis, good biocompatibility, and reversible redox properties. PPy derivatives not only inherit the advantages of polypyrrole, but also have some unique properties. The side and N-site substitution of PPy can not only yield polymers with good solubility, but it also endows polymers with special functionalities by controlling the introduced functional groups. The performance of copolymers can also be adjusted by the type of monomer or polymerization ratio. In this review, an overview of the different types, main preparation methods, and the application prospects of PPy derivatives reported to date are summarized and presented. The current challenges and future opportunities in this research area are also prospected.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11360100 | PMC |
http://dx.doi.org/10.3390/polym16162233 | DOI Listing |
Adv Sci (Weinh)
September 2025
Department of Bioengineering, Yildiz Technical University, Istanbul, 34722, Turkey.
Conductive nanocomposite hydrogels (CNHs) represent a promising tool in neural tissue engineering, offering tailored electroactive microenvironments to address the complex challenges of neural repair. This systematic scoping review, conducted in accordance with PRISMA-ScR guidelines, synthesizes recent advancements in CNH design, functionality, and therapeutic efficacy for central and peripheral nervous system (CNS and PNS) applications. The analysis of 125 studies reveals a growing emphasis on multifunctional materials, with carbon-based nanomaterials (CNTs, graphene derivatives; 36.
View Article and Find Full Text PDFOrg Biomol Chem
September 2025
College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China.
A visible-light-induced cascade radical fluoroalkylation/cyclization of -hydroxyaryl enaminones/2-(allyloxy)benzaldehydes with CFBr/1,2-dibromotetrafluoroethane in the presence of -Ir(ppy) and KHPO has been developed, which efficiently provides 3-fluoroalkyl-substituted chromone and chroman-4-one derivatives in good yields. In particular, the industrially available and low cost CFBr and 1,2-dibromotetrafluoroethane are used as fluoroalkyl reagents in this process, endowing the process with the potential to be used on a large scale. The mechanism was proposed based on the control experiments.
View Article and Find Full Text PDFJ Mater Chem C Mater
August 2025
Adolphe Merkle Institute, University of Fribourg Chemin des Verdiers 4 1700 Fribourg Switzerland
Ultraviolet (UV) light plays a central role in applications ranging from photochemistry to sterilization and water treatment. However, its low abundance in sunlight (∼10%) limits the direct solar use of UV-driven processes. Sensitized triplet-triplet annihilation upconversion (TTA-UC) offers a promising route to generate UV light from visible light under low-power excitation.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China. Electronic address:
Combination of different therapy modalities has emerged as a promising strategy for effective cancer treatment. Herein, we developed a multifunctional doxorubicin (DOX)-conjugated hyaluronic acid/polypyrrole (HA/PPy) nanoplatform, termed PPy-HA-CH nanoparticles, for the targeted photothermal chemotherapy of breast cancer. This nanoplatform was fabricated through layer-by-layer assembly of dopamine/hydrazide-modified hyaluronic acid (DHHA), hydroxyethyl chitosan, and anti-HER2 antibody-conjugated hyaluronic acid aldehyde on PPy nanoparticles.
View Article and Find Full Text PDFPhys Chem Chem Phys
August 2025
Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA.
Here, we report the synthesis and study of three Ir(III) complexes, which are derivatives of -Ir(ppy) (Hppy - 2-phenylpyridine). In these derivatives, the third position of the pyridine ring of one of the ppy ligands is functionalized with a tolyl (Ir-tol) or triphenyl triazine group (Ir-meta and Ir-para). Ir-meta has a 3-(3,5-diphenyl-2,4,6-triazinyl)phenyl group on the ppy pyridyl ligand, giving a disposition of the triazine to the ppy ligand, and Ir-para has a 4-(3,5-diphenyl-2,4,6-triazinyl)phenyl group bound to the ppy ligand, placing the triazine moiety to the ppy ligand.
View Article and Find Full Text PDF