Photofunctional Polyurethane Nanofabrics Doped by Zinc Tetraphenylporphyrin and Zinc Phthalocyanine Photosensitizers

Mosinger, Jiří; Lang, Kamil; Kubát, Pavel; Sýkora, Jan; Hof, Martin; Plíštil, Lukáš; Mosinger, B

doi:10.1007/s10895-009-0464-0

Cited by 63 publications

(62 citation statements)

References 25 publications

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“…All nanofabrics were placed on agar plates and inoculated with a suspension of E. coli in an undetermined concentration, and illuminated with white light for 30 min. All PS-doped nanofabrics were able to kill bacteria on their surfaces when exposed to white light [85].…”

Section: Porphyrin-embedded Fabricmentioning

confidence: 99%

Potential applications of porphyrins in photodynamic inactivation beyond the medical scope

Alves

Faustino

Neves

et al. 2015

Journal of Photochemistry and Photobiology C: Photochemistry Re

195

128

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a b s t r a c tAlthough the discovery of light-activated antimicrobial agents had been reported in the 1900s, only more recently research work has been developed toward the use of photodynamic process as an alternative to more conventional methods of inactivation of micro(organisms). The photoprocess causes cell death through irreversible oxidative damage by reactive oxygen species produced by the interaction between a photosensitizing compound and a light source.With great emphasis on the environmental area, photodynamic inactivation (PDI) has been tested in insect eradication and in water disinfection. Lately, other studies have been carried out concerning its possible use in aquaculture waters or to the control of food-borne pathogens. Other potential applications of PDI in household, industrial and hospital settings have been considered.In the last decade, scientific research in this area has gained importance not only due to great developments in the field of materials chemistry but also because of the serious problem of the increasing number of bacterial species resistant to common antibiotics. In fact, the design of antimicrobial surfaces or selfcleaning materials is a very appealing idea from the economic, social and public health standpoints. Thus, PDI of micro(organisms) represents a promising alternative.In this review, the efforts made in the last decade in the investigation of PDI of (micro)organisms with potential applications beyond the medical field will be discussed, focusing on porphyrins, free or immobilized on solid supports, as photosensitizing agents.

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Section: Porphyrin-embedded Fabricmentioning

confidence: 99%

Potential applications of porphyrins in photodynamic inactivation beyond the medical scope

Alves

Faustino

Neves

et al. 2015

Journal of Photochemistry and Photobiology C: Photochemistry Re

195

128

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“…Reports are available on E-spun multifunctional polymer nanofibers containing visible light responsive dyes, like porphyrin or phthalocyanine, which can produce electronically excited molecular oxygen (singlet oxygen, 1 ∆ g ) upon illumination with visible light and reveal an antibacterial effect [18][19][20]. Such multifunctional nanofibrillar composites have been found to be suitable for the fabrication of filters for water disinfection and the preparation of wound dressing patches to combat microbial infections.…”

Section: Introductionmentioning

confidence: 99%

Multi-Functional Magnetic Photoluminescent Photocatalytic Polystyrene-Based Micro- and Nano-Fibers Obtained by Electrospinning

Schaer

Crittin

Kasmi

et al. 2014

Fibers

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This work reports on the implementation of electrospinning (ES) as a facile route to encapsulate nano-engineered materials in a polystyrene (PS) matrix. We applied ES to co-encapsulate two kinds of nanoparticles, i.e., upconversion nanophosphors (UCNPs) and superparamagnetic iron oxide nanoparticles (SPIONs), in polystyrene (PS)-based micro-and nano-fibers (PSFs). This approach made it possible to integrate near-infrared (NIR) light-sensitive 500-nm β-NaYF 4 :Yb, Er UCNPs with 10-nm γ-Fe 2 O 3 SPIONs in PS fibers. During the ES process, PSFs were additionally loaded with a well-established singlet oxygen ( 1 ∆ g ) photosensitizer, rose bengal (RB).The thus obtained PSFs revealed the promising features of prospective multi-functional magnetic photoluminescent photocatalytic nano-constructs. OPEN ACCESSFibers 2014, 2 76

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“…1,2 Electrospun fibers mimic the extracellular matrix 3 and can be used as scaffolds for tissue engineering, [4][5][6] wound dressing, 7 drug release carriers, 8 or biosensors. 9 Antimicrobial activity can be introduced by doping with silver ions/nanoparticles, 10,11 peroxides, 12 photosensitizers, 13,14 or other chemical compounds. 15 Such materials can be suitable alternatives to antibiotics due to the increasing resistance of microorganisms, rendering conventional treatment less effective.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial nanofiber materials activated by light

Jesenská

Plíštil

Kubát

et al. 2011

J Biomedical Materials Res

Self Cite

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Electrospun polymeric nanofiber materials doped with 5,10,15,20-tetraphenylporphyrin (TPP) photosensitizer were prepared from four different polymers and were characterized with microscopic methods, steady-state, and time-resolved fluorescence and absorption spectroscopy. The polymers used included polyurethane Larithane™ (PUR), polystyrene (PS), polycaprolactone (PCL), and polyamide 6 (PA6). The antibacterial activity of all nanofiber materials against E. coli was activated by visible light and it was dependent on oxygen permeability/diffusion coefficients and the diameter of the polymeric nanofibers. This activity is based on oxidation ability of singlet oxygen O₂(¹Δ(g)) that is generated upon irradiation. All tested nanofiber materials exhibited prolonged antibacterial properties, even in the dark after long-duration irradiation. The post-irradiation effect was explained by the photogeneration of H₂O₂, which provided the material with long-lasting antibacterial properties.

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Photofunctional Polyurethane Nanofabrics Doped by Zinc Tetraphenylporphyrin and Zinc Phthalocyanine Photosensitizers

Cited by 63 publications

References 25 publications

Potential applications of porphyrins in photodynamic inactivation beyond the medical scope

Potential applications of porphyrins in photodynamic inactivation beyond the medical scope

Multi-Functional Magnetic Photoluminescent Photocatalytic Polystyrene-Based Micro- and Nano-Fibers Obtained by Electrospinning

Antibacterial nanofiber materials activated by light

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