Fluorescent Bioactive Corrole Grafted-Chitosan Films
authors Barata, JFB; Pinto, RJB; Serra, VIRCV; Silvestre, AJD; Trindade, T; Neves, MGPMS; Cavaleiro, JAS; Daina, S; Sadocco, P; Freire, CSR
nationality International
journal BIOMACROMOLECULES
keywords NANOPARTICLES; PHOTOSENSITIZERS; CHEMOSENSORS; DERIVATIVES; CELLULOSE; BEHAVIOR; XPS; IR
abstract Transparent corrole grafted-chitosan films were prepared by chemical modification of chitosan with a corrole macrocycle, namely, 5,10,15-tris(pentafluorophenyl)corrole (TPFC), followed by solvent casting. The obtained films were characterized in terms of absorption spectra (UV-vis), FLIM (fluorescence lifetime imaging microscopy), structure (FTIR, XPS), thermal stability (TGA), thermomechanical properties (DMA), and antibacterial activity. The results showed that the chemical grafting of chitosan with corrole units did not affect its film-forming ability and that the grafting yield increased with the reaction time. The obtained transparent films presented fluorescence which increases with the amount of grafted corrole units. Additionally, all films showed bacteriostatic effect against S. aureus, as well as good thermomechanical properties and thermal stability. Considering these features, promising applications may be envisaged for these corrole-chitosan films, such as biosensors, bioimaging agents, and bioactive optical devices.
publisher AMER CHEMICAL SOC
issn 1525-7797
year published 2016
volume 17
issue 4
beginning page 1395
ending page 1403
digital object identifier (doi) 10.1021/acs.biomac.6b00006
web of science category Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science
subject category Biochemistry & Molecular Biology; Chemistry; Polymer Science
unique article identifier WOS:000374076900017
  ciceco authors
  impact metrics
times cited (wos core): 9
journal impact factor (jcr 2016): 5.246
5 year journal impact factor (jcr 2016): 6.001
category normalized journal impact factor percentile (jcr 2016): 88.954
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