title: Interaction of solutions containing phenothiazines exposed to laser radiation with materials surfaces, in view of biomedical applications.
abstract: Phenothiazine drugs - chlorpromazine (CPZ), promazine (PZ) and promethazine (PMZ) - were exposed to 266 nm (fourth harmonic of the Nd:YAG pulsed laser radiation) in order to be modified at molecular level and to produce an enhancement of their antibacterial activity. The irradiated samples were analysed by several methods: pH and surface tension measurements, UV-vis-NIR absorption spectroscopy, laser induced fluorescence and thin layer chromatography. The purpose of these investigations was to study and describe the modified properties of the medicines to further investigate their specific interactions with materials such as cotton, polyester and Parafilm M as a model smooth surface. The textile materials may be impregnated with phenothiazines drug solutions exposed to laser radiation in order to be used in treatments applied on the surface of the organism. Some of the phenothiazines solutions exposed prolonged time intervals to laser radiation have much better activity against several bacteria. Therefore, in the paper, it is reported the wetting behaviour of CPZ, PZ and PMZ solutions, irradiated for time intervals between 1 and 240 min, on the surfaces of the three textures in order to draw a conclusion about their wettability as a function of time.
authors.affiliation: Laser Department, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, 077125, Magurele, Ilfov, Romania; Faculty of Physics, University of Bucharest, 405 Atomistilor, 077125, Magurele, Ilfov, Romania. Electronic address: agota.simon@inflpr.ro.
authors.forename: Agota
authors.initials: A
authors.lastname: Simon
authors.affiliation: Laser Department, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, 077125, Magurele, Ilfov, Romania; Faculty of Physics, University of Bucharest, 405 Atomistilor, 077125, Magurele, Ilfov, Romania.
authors.forename: Tatiana
authors.initials: T
authors.lastname: Alexandru
authors.affiliation: Laser Department, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, 077125, Magurele, Ilfov, Romania; Faculty of Physics, University of Bucharest, 405 Atomistilor, 077125, Magurele, Ilfov, Romania.
authors.forename: Mihai
authors.initials: M
authors.lastname: Boni
authors.affiliation: Laser Department, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, 077125, Magurele, Ilfov, Romania.
authors.forename: Victor
authors.initials: V
authors.lastname: Damian
authors.affiliation: Laser Department, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, 077125, Magurele, Ilfov, Romania; Faculty of Chemistry, University of Bucharest, 90-92 Sos. Panduri, 030018, Bucharest, Romania.
authors.forename: Alexandru
authors.initials: A
authors.lastname: Stoicu
authors.affiliation: Engineering of Fibrous Smart Materials (EFSM), Faculty for Engineering Technology (CTW), University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands.
authors.forename: Victoria
authors.initials: V
authors.lastname: Dutschk
authors.affiliation: Laser Department, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor, 077125, Magurele, Ilfov, Romania; Faculty of Physics, University of Bucharest, 405 Atomistilor, 077125, Magurele, Ilfov, Romania.
authors.forename: Mihail Lucian
authors.initials: ML
authors.lastname: Pascu
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry; D002746:Chlorpromazine / Q000737:chemistry; D002855:Chromatography, Thin Layer / Q000379:methods; D032561:Cotton Fiber; D006863:Hydrogen-Ion Concentration; D007834:Lasers; D010232:Paraffin / Q000737:chemistry; D010640:Phenothiazines / Q000737:chemistry*; D011091:Polyesters / Q000737:chemistry; D011395:Promazine / Q000737:chemistry; D011398:Promethazine / Q000737:chemistry; D012996:Solutions / Q000737:chemistry*; D013500:Surface Tension; D017155:Wettability
chemical_list: D000900:Anti-Bacterial Agents; D010640:Phenothiazines; D011091:Polyesters; D012996:Solutions; D010232:Paraffin; D011398:Promethazine; C031637:phenothiazine; D011395:Promazine; D002746:Chlorpromazine
keywords: Chlorpromazine hydrochloride (PubChem CID: 6240); Laser induced fluorescence; Nd:YAG laser; Phenothiazines; Photoproducts; Promazine hydrochloride (PubChem CID: 5887); Promethazine hydrochloride (PubChem CID: 6014); Solid surfaces wettability; Surface tension