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Triazinyl porphyrin-based photoactive cotton fabrics: preparation, characterization, and antibacterial activity
- Source :
- Biomacromolecules, Biomacromolecules, American Chemical Society, 2011, 12 (5), pp.1716-1723. ⟨10.1021/bm200082d⟩
- Publication Year :
- 2011
- Publisher :
- HAL CCSD, 2011.
-
Abstract
- International audience; In the present work, we report on the synthesis of cellulose cotton fibers bearing different types of photosensitizers with the aim to prepare new efficient polymeric materials for antimicrobial applications. Anionic, neutral, and cationic amino porphyrins have been covalently grafted on cotton fabric, without previous chemical modification of the cellulosic support, using a 1,3,5-triazine derivative as the linker. The obtained porphyrin-grafted cotton fabrics were characterized by infrared (ATR-FTIR), diffuse reflectance UV-vis (DRUV) spectroscopies, and thermogravimetric analysis (TGA) to confirm the triazine linkage. Antimicrobial activity of porphyrin-cellulose materials was tested under visible light irradiation against Staphylococcus aureus and Escherichia coli . The results showed excellent activity on the Gram-positive bacterium, showing structure-activity relationship, although no photodamage of the Gram-negative microorganism was recorded. A mechanism of bacterial inactivation by photosensitive surfaces is proposed.
- Subjects :
- Thermogravimetric analysis
Porphyrins
Polymers and Plastics
Light
Bioengineering
02 engineering and technology
010402 general chemistry
01 natural sciences
Biomaterials
chemistry.chemical_compound
Polymer chemistry
Spectroscopy, Fourier Transform Infrared
Materials Chemistry
Photosensitizer
Cotton Fiber
Cellulose
Triazine
Chemistry
Triazines
[CHIM.ORGA]Chemical Sciences/Organic chemistry
Cationic polymerization
Chemical modification
021001 nanoscience & nanotechnology
Porphyrin
0104 chemical sciences
Anti-Bacterial Agents
Thermogravimetry
Microscopy, Electron, Scanning
Spectrophotometry, Ultraviolet
0210 nano-technology
Antibacterial activity
Subjects
Details
- Language :
- English
- ISSN :
- 15257797 and 15264602
- Database :
- OpenAIRE
- Journal :
- Biomacromolecules, Biomacromolecules, American Chemical Society, 2011, 12 (5), pp.1716-1723. ⟨10.1021/bm200082d⟩
- Accession number :
- edsair.doi.dedup.....1c424d79d79b1db6e2d677c65492c9c4
- Full Text :
- https://doi.org/10.1021/bm200082d⟩