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Bregnhøj M, Thorning F, Ogilby PR. Singlet Oxygen Photophysics: From Liquid Solvents to Mammalian Cells. Chem Rev 2024. [PMID: 39106038 DOI: 10.1021/acs.chemrev.4c00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Molecular oxygen, O2, has long provided a cornerstone for studies in chemistry, physics, and biology. Although the triplet ground state, O2(X3Σg-), has garnered much attention, the lowest excited electronic state, O2(a1Δg), commonly called singlet oxygen, has attracted appreciable interest, principally because of its unique chemical reactivity in systems ranging from the Earth's atmosphere to biological cells. Because O2(a1Δg) can be produced and deactivated in processes that involve light, the photophysics of O2(a1Δg) are equally important. Moreover, pathways for O2(a1Δg) deactivation that regenerate O2(X3Σg-), which address fundamental principles unto themselves, kinetically compete with the chemical reactions of O2(a1Δg) and, thus, have practical significance. Due to technological advances (e.g., lasers, optical detectors, microscopes), data acquired in the past ∼20 years have increased our understanding of O2(a1Δg) photophysics appreciably and facilitated both spatial and temporal control over the behavior of O2(a1Δg). One goal of this Review is to summarize recent developments that have broad ramifications, focusing on systems in which oxygen forms a contact complex with an organic molecule M (e.g., a liquid solvent). An important concept is the role played by the M+•O2-• charge-transfer state in both the formation and deactivation of O2(a1Δg).
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Affiliation(s)
- Mikkel Bregnhøj
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
| | - Frederik Thorning
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
| | - Peter R Ogilby
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
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2
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Liu Y, Zhang L, Ouyang F, Xue C, Zhao X, Wang T, Pei Z, Shuai Q. Thermal-Accelerated Urease-Driven Bowl-Like Polydopamine Nanorobot for Targeted Photothermal/Photodynamic Antibiotic-Free Antibacterial Therapy. Adv Healthc Mater 2024; 13:e2304086. [PMID: 38520218 DOI: 10.1002/adhm.202304086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/19/2024] [Indexed: 03/25/2024]
Abstract
The problem of antibiotic resistance seriously affects the treatment of bacterial infections, so there is an urgent need to develop novel antibiotic-independent antimicrobial strategies. Herein, a urease-driven bowl-like mesoporous polydopamine nanorobot (MPDA@ICG@Ur@Man) based on single-wavelength near-infrared (NIR) remote photothermal acceleration to achieve antibiotic-free phototherapy(photothermal therapy, PTT, plus photodynamic therapy, PDT) is first reported. The smart nanorobots can perform active movement by decomposing urea to produce carbon dioxide and ammonia. Particularly, the elevated local temperature during PTT can increase urease activity to enhance the autonomous movement and thus increase the contact between the antimicrobial substance and bacteria. Compared with a nanomotor propelled by urea only, the diffusion coefficient (De) of photothermal-accelerated nanorobots is increased from 1.10 to 1.26 µm2 s-1. More importantly, urease-driven bowl-like nanorobots with photothermal enhancement can specifically identify Escherichia coli (E. coli) and achieve simultaneous PTT/PDT at a single wavelength with 99% antibactericidal activity in vitro. In a word, the urease-driven bowl-like nanorobots guided by photothermal-accelerated strategy could provide a novel perspective for increasing PTT/PDT antibacterial therapeutic efficacy and be promising for various antibiotic-free sterilization applications.
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Affiliation(s)
- Yu Liu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Li Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Feng Ouyang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Chenglong Xue
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Xiaoyu Zhao
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Tao Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Zhichao Pei
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Qi Shuai
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
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Mo S, Song Y, Lin M, Wang J, Zhang Z, Sun J, Guo D, Liu L. Near-infrared responsive sulfur vacancy-rich CuS nanosheets for efficient antibacterial activity via synergistic photothermal and photodynamic pathways. J Colloid Interface Sci 2022; 608:2896-2906. [PMID: 34785058 DOI: 10.1016/j.jcis.2021.11.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 12/14/2022]
Abstract
Defect engineering has been proven to be an effective approach for electronic structure modulation and plays an important role in the photocatalytic performance of nanomaterials. In this study, a series of CuS nanosheet sulfur vacancies (VS) are constructed by a simple hydrothermal synthesis method. The CuS with the highest VS concentration exhibits strong antibacterial performance, achieving bactericidal rates of 99.9% against the Gram-positive Bacillus subtilis and Gram-negative Escherichia coli bacteria under 808 nm laser irradiation. Under illumination, the temperature of the catalyst increases from 23.5 °C to 53.3 °C, and with a high photothermal conversion efficiency of 41.8%. For E. coli and B. subtilis, the reactive oxygen species (ROS) production that is induced by the CuS group is 8.6 and 9.6 times greater, respectively, than that of the control group. The presence of VS facilitates the enhancement of the light absorption capacity and the separation efficiency of electron-hole pairs, thereby resulting in improved photocatalytic performance. The synergistic effect of photothermal therapy (PTT) and photodynamic therapy (PDT) is aimed at causing oxidative damage and leading to bacterial death. Our findings provide an effective antibacterial strategy and offer new horizons for the application of CuS catalysts with VS in the NIR region.
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Affiliation(s)
- Shudi Mo
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yunhua Song
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Meihong Lin
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jianling Wang
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Ze Zhang
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jingyu Sun
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Donggang Guo
- Shanxi Laboratory for Yellow River, College of Environment and Resource, Shanxi University, Taiyuan 30006, China.
| | - Lu Liu
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Shin JY, Nguyen AQ. Exquisite chemistries of meso-pentafluorophenyl and meso-(2,6-dichlorophenyl) dipyrromethanes. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621300019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
meso-Aryl dipyrromethanes are important building blocks to create various practical molecules, and the electron-withdrawing effect of the meso-aryls can play an important role in improving/controlling their reactivities in further reactions: meso-Pentafluorophenyl and meso-(2,6-dichlorophenyl) substituted dipyrromethanes towards the associating dipyrrins and other derivatives have been investigated, in which coordination with different transition metals followed by the dissociation of the metal coordination by interruption of proton and halide ions have been verified. Furthermore, simple DDQ-oxidations of the dipyrromethanes have afforded DDQ-dipyrrin adducts which were delivered to distinctly advanced molecular rearrangements in the presence of acid and base. Vinylene bisdipyrrin compounds, obtained in the reactions of DDQ-dipyrrin adducts with a Lewis base triethylamine, have produced expanded porphyrinoid bis-nickel complexes during the metalation procedure with nickel acetate, while a cobalt metalation of the vinylene bisdipyrrin compounds resulted in an isolation of diamagnetic octahedral cobalt(III) complex. Moreover, meso-pentafluorophenyl and meso-(2,6-dichlorophenyl) dipyrromethanes have been useful platforms to accomplish size-controlled series of meso-aryl-substituted expanded porphyrins and easy separation/purification of selective meso-aryl expanded porphyrins, in which advanced metal complexes and various fascinating properties and reactivities admitting moderate functional molecules have arisen.
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Affiliation(s)
- Ji-Young Shin
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - An Quang Nguyen
- Department of Chemistry, School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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Šindelka K, Limpouchová Z, Procházka K. Solubilization of Charged Porphyrins in Interpolyelectrolyte Complexes: A Computer Study. Polymers (Basel) 2021; 13:502. [PMID: 33562022 PMCID: PMC7915837 DOI: 10.3390/polym13040502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/29/2021] [Accepted: 02/03/2021] [Indexed: 11/21/2022] Open
Abstract
Using coarse-grained dissipative particle dynamics (DPD) with explicit electrostatics, we performed (i) an extensive series of simulations of the electrostatic co-assembly of asymmetric oppositely charged copolymers composed of one (either positively or negatively charged) polyelectrolyte (PE) block A and one water-soluble block B and (ii) studied the solubilization of positively charged porphyrin derivatives (P+) in the interpolyelectrolyte complex (IPEC) cores of co-assembled nanoparticles. We studied the stoichiometric mixtures of 137 A10+B25 and 137 A10-B25 chains with moderately hydrophobic A blocks (DPD interaction parameter aAS=35) and hydrophilic B blocks (aBS=25) with 10 to 120 P+ added (aPS=39). The P+ interactions with other components were set to match literature information on their limited solubility and aggregation behavior. The study shows that the moderately soluble P+ molecules easily solubilize in IPEC cores, where they partly replace PE+ and electrostatically crosslink PE- blocks. As the large P+ rings are apt to aggregate, P+ molecules aggregate in IPEC cores. The aggregation, which starts at very low loadings, is promoted by increasing the number of P+ in the mixture. The positively charged copolymers repelled from the central part of IPEC core partially concentrate at the core-shell interface and partially escape into bulk solvent depending on the amount of P+ in the mixture and on their association number, AS. If AS is lower than the ensemble average ⟨AS⟩n, the copolymer chains released from IPEC preferentially concentrate at the core-shell interface, thus increasing AS, which approaches ⟨AS⟩n. If AS>⟨AS⟩n, they escape into the bulk solvent.
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Affiliation(s)
- Karel Šindelka
- Department of Molecular and Mesoscopic Modelling, Czech Academy of Sciences, Institute of Chemical Process Fundamentals, Rozvojová 1, 165 02 Prague, Czech Republic;
| | - Zuzana Limpouchová
- Department of Physical Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague, Czech Republic;
| | - Karel Procházka
- Department of Physical Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague, Czech Republic;
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Henke P, Dolanský J, Kubát P, Mosinger J. Multifunctional Photosensitizing and Biotinylated Polystyrene Nanofiber Membranes/Composites for Binding of Biologically Active Compounds. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18792-18802. [PMID: 32216378 DOI: 10.1021/acsami.9b23104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A three-step postprocessing functionalization of pristine electrospun polystyrene nanofiber membranes was used for the preparation of nanostructured biotinylated materials with an externally bonded porphyrin photosensitizer. Subsequently, the material was able to strongly bind biologically active streptavidin derivatives while keeping its photosensitizing and antibacterial properties due to the generation of singlet oxygen under the exclusive control of visible light. The resulting multifunctional materials functionalized by a streptavidin-horseradish peroxidase conjugate as a model bioactive compound preserved its enzymatic activity even in the presence of a porphyrin photosensitizer with some quenching effect on the activity of the photosensitizer. Prolonged kinetics of both singlet oxygen luminescence and singlet oxygen-sensitized delayed fluorescence (SODF) were found after irradiation by visible light. The above results reflected less effective quenching of the porphyrin photosensitizer triplet state by ground state oxygen and indicated hindered oxygen transport (diffusion) due to surface functionalization. We found that SODF could be used as a valuable tool for optimizing photosensitizing efficiency as well as a tool for confirming surface functionalization. Full photosensitizing and enzyme activity could be achieved by a space separation of photosensitizers and enzyme/biomolecules in the nanofiber composites consisting of two layers. The upper layer contained a photosensitizer that generated antibacterial singlet oxygen upon irradiation by light, and the bottom layer retained enzymatic activity for biochemical reactions.
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Affiliation(s)
- Petr Henke
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic
| | - Jiří Dolanský
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, 250 68, Husinec-Řež 1001, Czech Republic
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Jiří Mosinger
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, 250 68, Husinec-Řež 1001, Czech Republic
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Petropoulou A, Kralj S, Karagiorgis X, Savva I, Loizides E, Panagi M, Krasia-Christoforou T, Riziotis C. Multifunctional Gas and pH Fluorescent Sensors Based on Cellulose Acetate Electrospun Fibers Decorated with Rhodamine B-Functionalised Core-Shell Ferrous Nanoparticles. Sci Rep 2020; 10:367. [PMID: 31941969 PMCID: PMC6962333 DOI: 10.1038/s41598-019-57291-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 12/21/2019] [Indexed: 11/09/2022] Open
Abstract
Ferrous core-shell nanoparticles consisting of a magnetic γ-Fe2O3 multi-nanoparticle core and an outer silica shell have been synthesized and covalently functionalized with Rhodamine B (RhB) fluorescent molecules (γ-Fe2O3/SiO2/RhB NPs). The resulting γ-Fe2O3/SiO2/RhB NPs were integrated with a renewable and naturally-abundant cellulose derivative (i.e. cellulose acetate, CA) that was processed in the form of electrospun fibers to yield multifunctional fluorescent fibrous nanocomposites. The encapsulation of the nanoparticles within the fibers and the covalent anchoring of the RhB fluorophore onto the nanoparticle surfaces prevented the fluorophore's leakage from the fibrous mat, enabling thus stable fluorescence-based operation of the developed materials. These materials were further evaluated as dual fluorescent sensors (i.e. ammonia gas and pH sensors), demonstrating consistent response for very high ammonia concentrations (up to 12000 ppm) and fast and linear response in both alkaline and acidic environments. The superparamagnetic nature of embedded nanoparticles provides means of electrospun fibers morphology control by magnetic field-assisted processes and additional means of electromagnetic-based manipulation making possible their use in a wide range of sensing applications.
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Affiliation(s)
- Afroditi Petropoulou
- National Hellenic Research Foundation, Theoretical and Physical Chemistry Institute, Photonics for Nanoapplications Laboratory, Athens, 11635, Greece.,University of Peloponnese, Department of Informatics and Telecommunications, Tripolis, 22100, Greece
| | - Slavko Kralj
- Department for Materials Synthesis, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia.,Nanos SCI (Nanos Scientificae Ltd), Teslova 30, 1000, Ljubljana, Slovenia
| | - Xenofon Karagiorgis
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, Nicosia, 1678, Cyprus
| | - Ioanna Savva
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, Nicosia, 1678, Cyprus
| | - Emilios Loizides
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, Nicosia, 1678, Cyprus
| | - Myrofora Panagi
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, Nicosia, 1678, Cyprus
| | | | - Christos Riziotis
- National Hellenic Research Foundation, Theoretical and Physical Chemistry Institute, Photonics for Nanoapplications Laboratory, Athens, 11635, Greece.
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8
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Kubát P, Henke P, Raya RK, Štěpánek M, Mosinger J. Polystyrene and Poly(ethylene glycol)- b-Poly(ε-caprolactone) Nanoparticles with Porphyrins: Structure, Size, and Photooxidation Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:302-310. [PMID: 31829603 DOI: 10.1021/acs.langmuir.9b03468] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The transport of a photosensitizer to target biological structures followed by the release of singlet oxygen is a critical step in photodynamic therapy. We compared the (photo)physical properties of polystyrene nanoparticles (TPP@PS) of different sizes and self-assembled poly(ethylene glycol)-b-poly(ε-caprolactone) core/shell nanoparticles (TPP@PEG-PCL) with different lengths of copolymer blocks, both suitable for the transport of the tetraphenylporphyrin (TPP) photosensitizer. The singlet oxygen was formed inside both nanoparticles after irradiation with visible light. Its kinetics was controlled by the size of TPP@PS; its lifetime (τΔ) increased with increasing nanoparticle size (from 6.5 to 16 μs) because of hindered diffusion into the external aqueous environment, where it was quickly deactivated. Accordingly, the prolongation of the singlet oxygen-sensitized delayed fluorescence kinetics was found for TPP@PS of high size. The TPP@PEG-PCL self-assemblies allowed for enhanced oxygen diffusion, and the estimated low values of τΔ ≈ 3.7 μs were independent of the size of building blocks. The delayed fluorescence in oxygen-free conditions originating from triplet-triplet annihilation indicated a high mobility of TPP in the PCL core in comparison with fixed molecules in the PS matrix. Photooxidation of uric acid revealed the highest efficacy for TPP@PS of small sizes, whereas the largest TPP@PS exhibited the lowest activity, and the efficacy of TPP@PEG-PCL remained independent of the sizes of the building blocks.
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Affiliation(s)
- Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences , v.v.i., Dolejškova 3 , 182 23 Prague 8 , Czech Republic
| | - Petr Henke
- Department of Inorganic Chemistry, Faculty of Science , Charles University , 2030 Hlavova , 128 43 Prague 2 , Czech Republic
| | - Rahul Kumar Raya
- Department of Inorganic Chemistry, Faculty of Science , Charles University , 2030 Hlavova , 128 43 Prague 2 , Czech Republic
| | - Miroslav Štěpánek
- Department of Inorganic Chemistry, Faculty of Science , Charles University , 2030 Hlavova , 128 43 Prague 2 , Czech Republic
| | - Jiří Mosinger
- Department of Inorganic Chemistry, Faculty of Science , Charles University , 2030 Hlavova , 128 43 Prague 2 , Czech Republic
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , v.v.i., Husinec-Řež 1001 , 250 68 Řež , Czech Republic
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Stoll KR, Scholle F, Zhu J, Zhang X, Ghiladi RA. BODIPY-embedded electrospun materials in antimicrobial photodynamic inactivation. Photochem Photobiol Sci 2019; 18:1923-1932. [PMID: 31147667 DOI: 10.1039/c9pp00103d] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Drug-resistant pathogens, particularly those that result in hospital acquired infections (HAIs), have emerged as a critical priority for the World Health Organization. To address the need for self-disinfecting materials to counter the threat posed by the transmission of these pathogens from surfaces to new hosts, here we investigated if a cationic BODIPY photosensitizer, embedded via electrospinning into nylon and polyacrylonitrile (PAN) nanofibers, was capable of inactivating both bacteria and viruses via antimicrobial photodynamic inactivation (aPDI). Materials characterization, including fiber morphology and the degree of photosensitizer loading, was assessed by scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), and UV-visible diffuse reflectance spectroscopy (UV-Vis DRS), and demonstrated that the materials were comprised of nanofibers (125-215 nm avg. diameter) that were thermostable to >300 °C. The antimicrobial potencies of the resultant Nylon-BODIPY(+) and PAN-BODIPY(+) nanofiber materials were evaluated against four strains of bacteria recognized by the World Health Organization as either critical or high priority pathogens: Gram-positive strains methicillin-resistant S. aureus (MRSA; ATCC BAA-44) and vancomycin-resistant E. faecium (VRE; ATCC BAA-2320), and Gram-negative strains multidrug-resistant A. baumannii (MDRAB; ATCC BAA-1605) and NDM-1 positive K. pneumoniae (KP; ATCC BAA-2146). Our results demonstrated the detection limit (99.9999%; 6 log units reduction in CFU mL-1) photodynamic inactivation of three strains upon illumination (30-60 min; 40-65 ± 5 mW cm-2; 400-700 nm): MRSA, VRE, and MDRAB, but only minimal inactivation (47-75%) of KP. Antiviral studies employing PAN-BODIPY(+) against vesicular stomatitis virus (VSV), a model enveloped virus, revealed complete inactivation. Taken together, the results demonstrate the potential for electrospun BODIPY(+)-embedded nanofiber materials as the basis for pathogen-specific anti-infective materials, even at low photosensitizer loadings.
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Affiliation(s)
- Kevin R Stoll
- Department of Chemistry, United States Air Force Academy, CO 80840, USA
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10
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Antoniadou M, Pilch-Wrobel A, Riziotis C, Bednarkiewicz A, Tanasă E, Krasia-Christoforou T. Fluorescent electrospun PMMA microfiber mats with embedded NaYF 4: Yb/Er upconverting nanoparticles. Methods Appl Fluoresc 2019; 7:034002. [PMID: 31035276 DOI: 10.1088/2050-6120/ab1dbd] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Functional upconverting nanoparticles (UCNPs) can offer new possibilities in fluorescent applications as they exhibit desired characteristic properties like large shift between the fluorescent emission signal and the infrared excitation wavelength, multi- and narrow-band absorption and emission in visible and near infrared - Vis/NIR, together with excellent photostability and low toxicity as opposed to semiconducting quantum dots. The upconversion luminescence emission or quenching characteristics of UCNPs can be altered upon exposure to physical or chemical environmental factors providing thus a functionality that can be utilized for sensing or imaging. Furthermore their functionalization with suitable indicator dyes or recognition elements can extend the range of luminescence response and ratiometric sensing to specific analytes. Synergistically, electrospun nano- and microfibers offering large surface area can enhance the functionality of UCNPs by retaining the fluorescence efficiency and improving the overall responsivity due to dramatically increased surface. For the optimization of this hybrid material system the controllable incorporation of UCNPs is required especially at increased concentration conditions needed for high brightness. Herein, we report the fabrication, morphological and optical characterization of electrospun polymer-based nanocomposite fibers, consisting of poly(methyl methacrylate) (PMMA) and upconverting lanthanide doped nanoparticles of the type NaYF4 : 20% Yb3+/2% Er3+ @ NaYF4. Morphological studies regarding the uniformity and aggregation effects of the UCNP inclusion within the fibers have been implemented followed by upconversion emission characterization by pulsed near-infrared excitation. The study and optimization of such nanocomposite fibrous systems could provide useful insights for the development of efficient upconverting electrospun fiber mats for a number of imaging and sensing applications.
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Affiliation(s)
- Myrto Antoniadou
- University of Cyprus, Department of Mechanical and Manufacturing Engineering, Nicosia 1678, Cyprus
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11
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Jirka I, Kopová I, Kubát P, Tabor E, Bačáková L, Bouša M, Sajdl P. The Photodynamic Properties and the Genotoxicity of Heat-Treated Silicalite-1 Films. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E567. [PMID: 30769806 PMCID: PMC6416588 DOI: 10.3390/ma12040567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 01/31/2019] [Accepted: 02/10/2019] [Indexed: 11/17/2022]
Abstract
We investigated the use of a supported silicalite-1 film (SF) as a promising coating for metallic materials used in the fabrication of prostheses. The role of carbonaceous residua present on high-temperature calcined-SF in generating singlet oxygen for future use as a sterilization method has also been addressed, and the potential genotoxicity of these residua in osteoblast-like cells has been investigated. Calcination of as-synthesized SF induced the appearance of a rather complicated mixture of aliphatic and aromatic species on its outer surface. A series of variously volatile polycyclic aromatic hydrocarbons (PAH), including naphthalene, fluorene, phenanthrene, anthracene, fluoranthene, and pyrene, were identified in micromole concentrations. Irradiation of these PAHs on calcined-SF immersed in air-saturated chloroform led to the formation of very low concentrations of singlet oxygen. However, an increased level of DNA damage was observed on calcined-SF by immunofluorescence staining of phosphorylated histone H2AX analyzed by flow cytometry.
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Affiliation(s)
- Ivan Jirka
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Ivana Kopová
- Institute of Physiology of the Czech Academy of Sciences, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Edyta Tabor
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Lucie Bačáková
- Institute of Physiology of the Czech Academy of Sciences, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech Republic.
| | - Milan Bouša
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, v.v.i, Dolejškova 3, 182 23 Prague 8, Czech Republic.
| | - Petr Sajdl
- Power Engineering Department, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Czech Republic.
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12
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Hynek J, Jurík S, Koncošová M, Zelenka J, Křížová I, Ruml T, Kirakci K, Jakubec I, Kovanda F, Lang K, Demel J. The nanoscaled metal-organic framework ICR-2 as a carrier of porphyrins for photodynamic therapy. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:2960-2967. [PMID: 30546993 PMCID: PMC6278752 DOI: 10.3762/bjnano.9.275] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/06/2018] [Indexed: 06/09/2023]
Abstract
Nanosized porphyrin-containing metal-organic frameworks (MOFs) attract considerable attention as solid-state photosensitizers for biological applications. In this study, we have for the first time synthesised and characterised phosphinate-based MOF nanoparticles, nanoICR-2 (Inorganic Chemistry Rez). We demonstrate that nanoICR-2 can be decorated with anionic 5,10,15,20-tetrakis(4-R-phosphinatophenyl)porphyrins (R = methyl, isopropyl, phenyl) by utilizing unsaturated metal sites on the nanoparticle surface. The use of these porphyrins allows for superior loading of the nanoparticles when compared with commonly used 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin. The nanoICR-2/porphyrin composites retain part of the free porphyrins photophysical properties, while the photodynamic efficacy is strongly affected by the R substituent at the porphyrin phosphinate groups. Thus, phosphinatophenylporphyrin with phenyl substituents has the strongest photodynamic efficacy due to the most efficient cellular uptake.
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Affiliation(s)
- Jan Hynek
- Department of Materials Chemistry, Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68 Řež, Czech Republic
| | - Sebastian Jurík
- Department of Solid State Chemistry, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Martina Koncošová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Jaroslav Zelenka
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Ivana Křížová
- Department of Biotechnology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Tomáš Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Kaplan Kirakci
- Department of Materials Chemistry, Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68 Řež, Czech Republic
| | - Ivo Jakubec
- Department of Materials Chemistry, Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68 Řež, Czech Republic
| | - František Kovanda
- Department of Solid State Chemistry, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Kamil Lang
- Department of Materials Chemistry, Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68 Řež, Czech Republic
| | - Jan Demel
- Department of Materials Chemistry, Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68 Řež, Czech Republic
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13
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Chen M, Ou B, Guo Y, Guo Y, Kang Y, Liu H, Yan J, Tian L. Preparation of an environmentally friendly antifouling degradable polyurethane coating material based on medium-length fluorinated diols. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2018. [DOI: 10.1080/10601325.2018.1470466] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Meilong Chen
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
| | - Baoli Ou
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
- State Key Laboratory of Tribology, Tsinghua University, Tsinghua University, Beijing, China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
| | - Yuanjun Guo
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
| | - Yan Guo
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
| | - Yonghai Kang
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
| | - Huiyang Liu
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
| | - Jianhui Yan
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
| | - Li Tian
- School of Materials Science and Engineering, Hunan University of Science and Technology, Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Key Laboratory of Theoretical Organic Chemistry and Function Molecule Ministry of Education, Xiangtan, China
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14
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Scholz M, Dědic R, Hála J. Microscopic time-resolved imaging of singlet oxygen by delayed fluorescence in living cells. Photochem Photobiol Sci 2018; 16:1643-1653. [PMID: 28936518 DOI: 10.1039/c7pp00132k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Singlet oxygen is a highly reactive species which is involved in a number of processes, including photodynamic therapy of cancer. Its very weak near-infrared emission makes imaging of singlet oxygen in biological systems a long-term challenge. We address this challenge by introducing Singlet Oxygen Feedback Delayed Fluorescence (SOFDF) as a novel modality for semi-direct microscopic time-resolved wide-field imaging of singlet oxygen in biological systems. SOFDF has been investigated in individual fibroblast cells incubated with a well-known photosensitizer aluminium phthalocyanine tetrasulfonate. The SOFDF emission from the cells is several orders of magnitude stronger and much more readily detectable than the very weak near-infrared phosphorescence of singlet oxygen. Moreover, the analysis of SOFDF kinetics enables us to estimate the lifetimes of the involved excited states. Real-time SOFDF images with micrometer spatial resolution and submicrosecond temporal-resolution have been recorded. Interestingly, a steep decrease in the SOFDF intensity after the photodynamically induced release of a photosensitizer from lysosomes has been demonstrated. This effect could be potentially employed as a valuable diagnostic tool for monitoring and dosimetry in photodynamic therapy.
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Affiliation(s)
- Marek Scholz
- Charles University, Faculty of Mathematics and Physics, Department of Chemical Physics and Optics, Ke Karlovu 3, 121 16, Prague, The Czech Republic.
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15
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Kubát P, Henke P, Berzediová V, Štěpánek M, Lang K, Mosinger J. Nanoparticles with Embedded Porphyrin Photosensitizers for Photooxidation Reactions and Continuous Oxygen Sensing. ACS APPLIED MATERIALS & INTERFACES 2017; 9:36229-36238. [PMID: 28956901 DOI: 10.1021/acsami.7b12009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report the synthesis and characterization of sulfonated polystyrene nanoparticles (average diameter 30 ± 14 nm) with encapsulated 5,10,15,20-tetraphenylporphyrin or ionically entangled tetracationic 5,10,15,20-tetrakis(N-methylpyridinium-4-yl)porphyrin, their photooxidation properties, and the application of singlet oxygen-sensitized delayed fluorescence (SODF) in oxygen sensing. Both types of nanoparticles effectively photogenerated singlet oxygen, O2(1Δg). The O2(1Δg) phosphorescence, transient absorption of the porphyrin triplet states, and SODF signals were monitored using time-resolved spectroscopic techniques. The SODF intensity depended on the concentration of the porphyrin photosensitizer and dissolved oxygen and on the temperature. After an initial period (a few microseconds), the kinetics of the SODF process can be approximated as a monoexponential function, and the apparent SODF lifetimes can be correlated with the oxygen concentration. The oxygen sensing based on SODF allowed measurement of the dissolved oxygen in aqueous media in the broad range of oxygen concentrations (0.2-38 mg L-1). The ability of both types of nanoparticles to photooxidize external substrates was predicted by the SODF measurements and proven by chemical tests. The relative photooxidation efficacy was highest at a low porphyrin concentration, as indicated by the highest fluorescence quantum yield (ΦF), and it corresponds with negligible inner filter and self-quenching effects. The photooxidation abilities were sensitive to the influence of temperature on the diffusion and solubility of oxygen in both polystyrene and water media and to the rate constant of the O2(1Δg) reaction with a substrate. Due to their efficient photogeneration of cytotoxic O2(1Δg) at physiological temperatures and their oxygen sensing via SODF, both types of nanoparticles are promising candidates for biomedical applications.
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Affiliation(s)
- Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences , v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Petr Henke
- Faculty of Science, Charles University , 2030 Hlavova, 128 43 Prague 2, Czech Republic
| | - Veronika Berzediová
- Faculty of Science, Charles University , 2030 Hlavova, 128 43 Prague 2, Czech Republic
| | - Miroslav Štěpánek
- Faculty of Science, Charles University , 2030 Hlavova, 128 43 Prague 2, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , v.v.i., Husinec-Řež 1001, 250 68 Řež, Czech Republic
| | - Jiří Mosinger
- Faculty of Science, Charles University , 2030 Hlavova, 128 43 Prague 2, Czech Republic
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , v.v.i., Husinec-Řež 1001, 250 68 Řež, Czech Republic
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16
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Castriciano MA, Zagami R, Casaletto MP, Martel B, Trapani M, Romeo A, Villari V, Sciortino MT, Grasso L, Guglielmino S, Scolaro LM, Mazzaglia A. Poly(carboxylic acid)-Cyclodextrin/Anionic Porphyrin Finished Fabrics as Photosensitizer Releasers for Antimicrobial Photodynamic Therapy. Biomacromolecules 2017; 18:1134-1144. [PMID: 28257182 DOI: 10.1021/acs.biomac.6b01752] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In the development of new antibacterial therapeutic approaches to fight multidrug-resistant bacteria, antimicrobial photodynamic therapy (aPDT) represents a well-known alternative to treat local infections caused by different microorganisms. Here we present a polypropylene (PP) fabric finished with citrate-hydroxypropyl-βCD polymer (PP-CD) entrapping the tetra-anionic 5,10,15,20-tetrakis(4-sulfonatophenyl)-21H,23H-porphine (TPPS) as photosensitizer-eluting scaffold (PP-CD/TPPS) for aPDT. The concept is based on host-guest complexation of porphyrin in the cavities of CDs immobilized on the PP fibers, followed by its sustained and controlled delivery in release medium and simultaneous photoinactivation of microorganisms. Morphology of fabric was characterized by optical (OM) and scanning electron microscopies (SEM). Optical properties were investigated by UV-vis absorption, steady- and time-resolved fluorescence emission spectroscopy. X-ray photoelectron spectroscopy (XPS) and FT-IR revealed the surface chemical composition and the distribution map of the molecular components on the fabric, respectively. Direct 1O2 determination allowed to assess the potential photodynamic activity of the fabric. Release kinetics of TPPS in physiological conditions pointed out the role of the CD cavity to control the TPPS elution. Photoantimicrobial activity of the porphyrin-loaded textile was investigated against both Gram-positive Staphylococcus aureus ATCC 29213 (S. aureus) and Gram-negative Pseudomonas aeruginosa ATCC 27853 (P. aeruginosa). Optical microscopy coupled with UV-vis extinction and fluorescence spectra aim to ascertain the uptake of TPPS to S. aureus bacterial cells. Finally, PP-CD/TPPS fabric-treated S. aureus cells were photokilled of 99.98%. Moreover, low adhesion of S. aureus cells on textile was established. Conversely, no photodamage of fabric-treated P. aeruginosa cells was observed, together with their satisfying adhesion.
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Affiliation(s)
- Maria Angela Castriciano
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , V.le F. Stagno D'Alcontres, 31, 98166, Messina, Italy
| | - Roberto Zagami
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , V.le F. Stagno D'Alcontres, 31, 98166, Messina, Italy
| | - Maria Pia Casaletto
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati , Via Ugo La Malfa, 153, 90146, Palermo, Italy
| | - Bernard Martel
- Unité Matériaux et Transformations, UMET CNRS 8207, University of Science and Technology of Lille , 59655, Villeneuve d'Ascq, France
| | - Mariachiara Trapani
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , V.le F. Stagno D'Alcontres, 31, 98166, Messina, Italy
| | - Andrea Romeo
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , V.le F. Stagno D'Alcontres, 31, 98166, Messina, Italy.,Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , Viale F. Stagno d'Alcontres, 31, 98166, Messina, Italy.,C.I.R.C.M.S.B, Unity of Messina , Messina, Italy
| | - Valentina Villari
- Consiglio Nazionale delle Ricerche, Istituto per i processi Chimico-Fisici , Viale F. Stagno d'Alcontres 37, 98158, Messina, Italy
| | - Maria Teresa Sciortino
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , Viale F. Stagno d'Alcontres, 31, 98166, Messina, Italy
| | - Laura Grasso
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , Viale F. Stagno d'Alcontres, 31, 98166, Messina, Italy
| | - Salvatore Guglielmino
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , Viale F. Stagno d'Alcontres, 31, 98166, Messina, Italy
| | - Luigi Monsù Scolaro
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , V.le F. Stagno D'Alcontres, 31, 98166, Messina, Italy.,Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , Viale F. Stagno d'Alcontres, 31, 98166, Messina, Italy.,C.I.R.C.M.S.B, Unity of Messina , Messina, Italy
| | - Antonino Mazzaglia
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina , V.le F. Stagno D'Alcontres, 31, 98166, Messina, Italy
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17
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Vinklárek IS, Scholz M, Dědic R, Hála J. Singlet oxygen feedback delayed fluorescence of protoporphyrin IX in organic solutions. Photochem Photobiol Sci 2017; 16:507-518. [DOI: 10.1039/c6pp00298f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The PpIX DF show the significant role of SOFDF mechanism at high concentrations and at atmospheric partial pressure of oxygen and should be considered when developing diagnostic tools for clinical applications.
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Affiliation(s)
- Ivo S. Vinklárek
- Charles University
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- Prague
- The Czech Republic
| | - Marek Scholz
- Charles University
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- Prague
- The Czech Republic
| | - Roman Dědic
- Charles University
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- Prague
- The Czech Republic
| | - Jan Hála
- Charles University
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- Prague
- The Czech Republic
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18
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Henke P, Kirakci K, Kubát P, Fraiberk M, Forstová J, Mosinger J. Antibacterial, Antiviral, and Oxygen-Sensing Nanoparticles Prepared from Electrospun Materials. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25127-36. [PMID: 27589368 DOI: 10.1021/acsami.6b08234] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
A simple nanoprecipitation method was used for preparation of stable photoactive polystyrene nanoparticles (NPs, diameter 30 ± 10 nm) from sulfonated electrospun polystyrene nanofiber membranes with encapsulated 5,10,15,20-tetraphenylporphyrin (TPP) or platinum octaethylporphyrin (Pt-OEP). The NPs prepared with TPP have strong antibacterial and antiviral properties and can be applied to the photooxidation of external substrates based on photogenerated singlet oxygen. In contrast to nanofiber membranes, which have limited photooxidation ability near the surface, NPs are able to travel toward target species/structures. NPs with Pt-OEP were used for oxygen sensing in aqueous media, and they presented strong linear responses to a broad range of oxygen concentrations. The nanofiber membranes can be applied not only as a source of NPs but also as an effective filter for their removal from solution.
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Affiliation(s)
- Petr Henke
- Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic
| | - Kaplan Kirakci
- Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic , 250 68 Řež, Czech Republic
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Czech Academy of Sciences , Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Martin Fraiberk
- Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic
| | - Jitka Forstová
- Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic
| | - Jiří Mosinger
- Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic
- Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic , 250 68 Řež, Czech Republic
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19
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Light-activated polymethylmethacrylate nanofibers with antibacterial activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:229-235. [DOI: 10.1016/j.msec.2016.03.047] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/02/2016] [Accepted: 03/14/2016] [Indexed: 01/28/2023]
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20
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Mosinger J, Lang K, Kubát P. Photoactivatable Nanostructured Surfaces for Biomedical Applications. Top Curr Chem (Cham) 2016; 370:135-68. [DOI: 10.1007/978-3-319-22942-3_5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Dolanský J, Henke P, Kubát P, Fraix A, Sortino S, Mosinger J. Polystyrene Nanofiber Materials for Visible-Light-Driven Dual Antibacterial Action via Simultaneous Photogeneration of NO and O2((1)Δg). ACS APPLIED MATERIALS & INTERFACES 2015; 7:22980-22989. [PMID: 26430799 DOI: 10.1021/acsami.5b06233] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This contribution reports on the preparation, characterization, and biological evaluation of electrospun polystyrene nanofiber materials engineered with a covalently grafted NO photodonor and ionically entangled tetracationic porphyrin and phthalocyanine photosensitizers. These photofunctional materials exhibit an effective and simultaneous photogeneration of two antibacterial species such as nitric oxide (NO) and singlet oxygen, O2((1)Δg) under illumination with visible light, as demonstrated by their direct detection using amperometric and time-resolved spectroscopic techniques. Dual-mode photoantibacterial action is demonstrated by antibacterial tests carried out on Escherichia coli.
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Affiliation(s)
- Jiří Dolanský
- Faculty of Science, Charles University in Prague , 2030 Hlavova, 128 43 Prague 2, Czech Republic
- Institute of Inorganic Chemistry, v.v.i., Czech Academy of Sciences , 250 68 Řež, Czech Republic
| | - Petr Henke
- Faculty of Science, Charles University in Prague , 2030 Hlavova, 128 43 Prague 2, Czech Republic
| | - Pavel Kubát
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Czech Academy of Sciences , Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Aurore Fraix
- Laboratory of Photochemistry, Department of Drug Sciences, University of Catania , Viale Andrea Doria 6, I-95125 Catania, Italy
| | - Salvatore Sortino
- Laboratory of Photochemistry, Department of Drug Sciences, University of Catania , Viale Andrea Doria 6, I-95125 Catania, Italy
| | - Jiří Mosinger
- Faculty of Science, Charles University in Prague , 2030 Hlavova, 128 43 Prague 2, Czech Republic
- Institute of Inorganic Chemistry, v.v.i., Czech Academy of Sciences , 250 68 Řež, Czech Republic
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22
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Plíštil L, Henke P, Kubát P, Mosinger J. Anion exchange nanofiber materials activated by daylight with a dual antibacterial effect. Photochem Photobiol Sci 2015; 13:1321-9. [PMID: 25014673 DOI: 10.1039/c4pp00157e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anion exchange polystyrene nanofiber materials (AE) were prepared by electrospinning followed by two-step functionalization of the nanofiber surface by chlorosulfonic acid and ethylendiamine. The photoactive character of these materials was introduced through adsorption of the tetra-anionic 5,10,15,20-tetrakis-(4-sulfonatophenyl)porphyrin photosensitizer (TPPS-AE) on the nanofiber surface or by encapsulation of the nonpolar 5,10,15,20-tetraphenylporphyrin photosensitizer (AE(TPP)) into the nanofibers. Anion exchange nanofiber materials with porphyrins are characterized by a high ion-exchange capacity, photogeneration of singlet oxygen O2((1)Δg), and singlet oxygen-sensitized delayed fluorescence. Due to the photogeneration of cytotoxic O2((1)Δg), the nanofibers exhibited oxidation of the external substrates in aqueous solution and an efficient antibacterial effect when activated by simulated daylight. Adsorption of both TPPS and I(-) on the surface of AE led to the formation of more efficient I-TPPS-AE materials. Rapid photooxidation of I(-) by O2((1)Δg), and the formation of another cytotoxic species, I3(-), on the surface of the nanofibers were responsible for the increased antibacterial properties of I-TPPS-AE and the prolonged antibacterial effect in the dark.
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Affiliation(s)
- L Plíštil
- Faculty of Sciences, Charles University in Prague, Hlavova 2030, 128 43 Prague 2, Czech Republic.
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23
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Application of photoactive electrospun nanofiber materials with immobilized meso-tetraphenylporphyrin for parabens photodegradation. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.06.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Scholz M, Biehl AL, Dědic R, Hála J. The singlet-oxygen-sensitized delayed fluorescence in mammalian cells: a time-resolved microscopy approach. Photochem Photobiol Sci 2015; 14:700-13. [DOI: 10.1039/c4pp00339j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Microsecond kinetics of singlet-oxygen-sensitized delayed fluorescence (SOSDF) have been detected from individual living fibroblast cells as a proof-of-concept. These provide valuable information about excited state lifetimes and their changes during PDT-like treatment.
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Affiliation(s)
- Marek Scholz
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
| | - Anna-Louisa Biehl
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
- On leave from Ernst-Abbe-Fachhochschule Jena
| | - Roman Dědic
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
| | - Jan Hála
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
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25
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Bowers DT, Tanes ML, Das A, Lin Y, Keane NA, Neal RA, Ogle ME, Brayman KL, Fraser CL, Botchwey EA. Spatiotemporal oxygen sensing using dual emissive boron dye-polylactide nanofibers. ACS NANO 2014; 8:12080-91. [PMID: 25426706 PMCID: PMC4278692 DOI: 10.1021/nn504332j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Oxygenation in tissue scaffolds continues to be a limiting factor in regenerative medicine despite efforts to induce neovascularization or to use oxygen-generating materials. Unfortunately, many established methods to measure oxygen concentration, such as using electrodes, require mechanical disturbance of the tissue structure. To address the need for scaffold-based oxygen concentration monitoring, a single-component, self-referenced oxygen sensor was made into nanofibers. Electrospinning process parameters were tuned to produce a biomaterial scaffold with specific morphological features. The ratio of an oxygen sensitive phosphorescence signal to an oxygen insensitive fluorescence signal was calculated at each image pixel to determine an oxygenation value. A single component boron dye-polymer conjugate was chosen for additional investigation due to improved resistance to degradation in aqueous media compared to a boron dye polymer blend. Standardization curves show that in fully supplemented media, the fibers are responsive to dissolved oxygen concentrations less than 15 ppm. Spatial (millimeters) and temporal (minutes) ratiometric gradients were observed in vitro radiating outward from the center of a dense adherent cell grouping on scaffolds. Sensor activation in ischemia and cell transplant models in vivo show oxygenation decreases on the scale of minutes. The nanofiber construct offers a robust approach to biomaterial scaffold oxygen sensing.
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Affiliation(s)
- Daniel T. Bowers
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Michael L. Tanes
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Anusuya Das
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
- Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Yong Lin
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Nicole A. Keane
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Rebekah A. Neal
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Molly E. Ogle
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Kenneth L. Brayman
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
- Department of Surgery, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Cassandra L. Fraser
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Edward A. Botchwey
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, United States
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- Address correspondence to
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Henke P, Kozak H, Artemenko A, Kubát P, Forstová J, Mosinger J. Superhydrophilic polystyrene nanofiber materials generating O2((1)Δ(g)): postprocessing surface modifications toward efficient antibacterial effect. ACS APPLIED MATERIALS & INTERFACES 2014; 6:13007-14. [PMID: 25014212 DOI: 10.1021/am502917w] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The surfaces of electrospun polystyrene (PS) nanofiber materials with encapsulated 1% w/w 5,10,15,20-tetraphenylporphyrin (TPP) photosensitizer were modified through sulfonation, radio frequency (RF) oxygen plasma treatment, and polydopamine coating. The nanofiber materials exhibited efficient photogeneration of singlet oxygen. The postprocessing modifications strongly increased the wettability of the pristine hydrophobic PS nanofibers without causing damage to the nanofibers, leakage of the photosensitizer, or any substantial change in the oxygen permeability of the inner bulk of the polymer nanofiber. The increase in the surface wettability yielded a significant increase in the photo-oxidation of external polar substrates and in the antibacterial activity of the nanofibers in aqueous surroundings. The results reveal the crucial role played by surface hydrophilicity/wettability in achieving the efficient photo-oxidation of a chemical substrate/biological target at the surface of a material generating O2((1)Δg) with a short diffusion length.
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Affiliation(s)
- Petr Henke
- Faculty of Sciences, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic
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Suchánek J, Henke P, Mosinger J, Zelinger Z, Kubát P. Effect of Temperature on Photophysical Properties of Polymeric Nanofiber Materials with Porphyrin Photosensitizers. J Phys Chem B 2014; 118:6167-74. [DOI: 10.1021/jp5029917] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jan Suchánek
- J.
Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 18223 Praha 8, Czech Republic
- Faculty
of Safety Engineering, Technical University of Ostrava, Lumírova
13, Ostrava-Vyškovice, 700 30 Ostrava, Czech Republic
| | | | - Jiří Mosinger
- Faculty
of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic
- Institute
of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic
| | - Zdeněk Zelinger
- J.
Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 18223 Praha 8, Czech Republic
| | - Pavel Kubát
- J.
Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 18223 Praha 8, Czech Republic
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Multi-Functional Magnetic Photoluminescent Photocatalytic Polystyrene-Based Micro- and Nano-Fibers Obtained by Electrospinning. FIBERS 2014. [DOI: 10.3390/fib2010075] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Arzoumanian E, Ronzani F, Trivella A, Oliveros E, Sarakha M, Richard C, Blanc S, Pigot T, Lacombe S. Transparent organosilica photocatalysts activated by visible light: photophysical and oxidative properties at the gas-solid interface. ACS APPLIED MATERIALS & INTERFACES 2014; 6:275-288. [PMID: 24304089 DOI: 10.1021/am404175y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The photophysical properties of several photosensitizers (PSs) included or grafted in silica monoliths were compared to their properties in solution. The effects of the solid support on their steady-state and transient absorption spectra, on their quantum yields of singlet oxygen ((1)O2) production, and on their ability to photoinduce the oxidation of dimethylsulfide (DMS) were investigated. Two cyanoanthracene derivatives (9,14-dicyanobenzo[b]triphenylene, DBTP, and 9,10-dicyanoanthracene, DCA), as well as three phenothiazine dyes (methylene blue, MB(+), new methylene blue, NMB(+), methylene violet, MV), were encapsulated in silica, analyzed and compared to two reference PSs (perinaphthenone, PN and rose bengal, RB). A DBTP derivative (3-[N-(N″-triethoxysilylpropyl-N'-hexylurea)]carboxamido-9,14-dicyanobenzo[b]triphenylene, 3) was also prepared and grafted onto silica. Thanks to the transparency and the free-standing shape of the monoliths, the complete spectroscopic characterization of the supported PSs was carried out directly at the gas-solid interface. The influence of the silica network, the PS, and the adsorption/grafting link between the PS and silica was investigated. The effects of PS concentration, gaseous atmosphere, humidity, and hydrophobicity on the production of (1)O2 were analyzed. With all PSs, (1)O2 production was very efficient (quantum yields of (1)O2 production, relative to PN, between 0.6 and 1), and this species was the only one involved in the pollutant photooxidation. The influence of the matrix on the PSs' photophysics could be considered as negligible. In contrast, the matrix effect on DMS photooxidation was extremely important: the gas diffusion inside the porous structure, and thus, the photoactivity of the materials, strictly depended on silica's surface area and porosity. Our results highlight the suitability of these silica structures as inert supports for the study of the photosensitizing properties at the gas-solid interface. Moreover, thanks to the adsorption properties of the matrix, the synthesized materials can be used as microphotoreactor for the (1)O2-mediated oxidation of volatile pollutants.
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Affiliation(s)
- Emmanuel Arzoumanian
- Laboratoire des IMRCP, UMR CNRS 5623, Université Toulouse III (Paul Sabatier, UPS) , 118 route de Narbonne F-31062 Toulouse Cedex 9, France
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Topal SZ, Önal E, Ertekin K, Oter O, Gürek AG, Hirel C. Significant sensitivity and stability enhancement of tetraphenylporphyrin-based optical oxygen sensing material in presence of perfluorochemicals. J PORPHYR PHTHALOCYA 2013. [DOI: 10.1142/s1088424613500193] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Emission-based oxygen sensing properties of highly luminescent tetraphenylporphyrin molecules were investigated in polystyrene, ethyl cellulose, poly(1-trimethylsilyl-1-propyne) and poly(isobutylmethacrylate) matrices. The effect of perfluorochemicals (PFCs) on oxygen sensitivity and stability of the sensor materials was also examined. Fluorescence intensity and lifetime measurements of meso-tetraphenylporphyrinato Zn ( II ) (ZnTPP) and meso-tetraphenylporphyrin (H2TPP) materials were performed in the concentration range of 0–100% pO 2. The fluorescence intensity variation of H2TPPvs. oxygen was 86%. H2TPP-based composite also yielded higher Stern–Volmer constant, faster response and regeneration time, excellent long term photostability and larger linear response range with respect to ZnTPP. The detection limit of oxygen for H2TPP was less than 0.5%. When stored in sealed bags protected from sunlight, no decrease in oxygen sensitivity was observed during approximately five months. As far as we know, the gathered utilization of PFCs and H2TPP embedded in polymer matrices was not previously described in literature, and has present amelioration compared to materials already existing.
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Affiliation(s)
- Sevinc Z. Topal
- Gebze Institute of Technology, Department of Chemistry, P.O.Box 141, 41400 Gebze, Kocaeli, Turkey
| | - Emel Önal
- Gebze Institute of Technology, Department of Chemistry, P.O.Box 141, 41400 Gebze, Kocaeli, Turkey
| | - Kadriye Ertekin
- University of Dokuz Eylul, Faculty of Arts and Sciences, Department of Chemistry, 35160 Buca, Izmir, Turkey
| | - Ozlem Oter
- University of Dokuz Eylul, Faculty of Arts and Sciences, Department of Chemistry, 35160 Buca, Izmir, Turkey
| | - Ayşe G. Gürek
- Gebze Institute of Technology, Department of Chemistry, P.O.Box 141, 41400 Gebze, Kocaeli, Turkey
| | - Catherine Hirel
- Gebze Institute of Technology, Department of Chemistry, P.O.Box 141, 41400 Gebze, Kocaeli, Turkey
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Rahal R, Le Bechec M, Guyoneaud R, Pigot T, Paolacci H, Lacombe S. Bactericidal activity under UV and visible light of cotton fabrics coated with anthraquinone-sensitized TiO2. Catal Today 2013. [DOI: 10.1016/j.cattod.2012.10.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Henke P, Lang K, Kubát P, Sýkora J, Slouf M, Mosinger J. Polystyrene nanofiber materials modified with an externally bound porphyrin photosensitizer. ACS APPLIED MATERIALS & INTERFACES 2013; 5:3776-3783. [PMID: 23566280 DOI: 10.1021/am4004057] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Polystyrene ion-exchange nanofiber materials with large surface areas and adsorption capacities were prepared by electrospinning followed by the sulfonation and adsorption of a cationic 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin (TMPyP) photosensitizer on the nanofiber surfaces. The morphology, structure, and photophysical properties of these nanofiber materials were characterized by microscopic methods and steady-state and time-resolved fluorescence and absorption spectroscopies. The externally bound TMPyP can be excited by visible light to form triplet states and singlet oxygen O2((1)Δg) and singlet oxygen-sensitized delayed fluorescence (SODF). The photophysical properties of the nanofibers were strongly dependent on the amount of bound TMPyP molecules and their organization on the nanofiber surfaces. The nanofibers demonstrated photooxidative activity toward inorganic and organic molecules and antibacterial activity against E. coli due to the sensitized formation of O2((1)Δg) that is an effective oxidation/cytotoxic agent. The nanofiber materials also adsorbed heavy metal cations (Pb(2+)) and removed them from the water environment.
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Affiliation(s)
- Petr Henke
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic
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Scholz M, Dědic R, Breitenbach T, Hála J. Singlet oxygen-sensitized delayed fluorescence of common water-soluble photosensitizers. Photochem Photobiol Sci 2013; 12:1873-84. [DOI: 10.1039/c3pp50170a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lhotáková Y, Plíštil L, Morávková A, Kubát P, Lang K, Forstová J, Mosinger J. Virucidal nanofiber textiles based on photosensitized production of singlet oxygen. PLoS One 2012; 7:e49226. [PMID: 23139839 PMCID: PMC3490908 DOI: 10.1371/journal.pone.0049226] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 10/07/2012] [Indexed: 12/20/2022] Open
Abstract
Novel biomaterials based on hydrophilic polycaprolactone and polyurethane (Tecophilic®) nanofibers with an encapsulated 5,10,5,20-tetraphenylporphyrin photosensitizer were prepared by electrospinning. The doped nanofiber textiles efficiently photo-generate O2(1Δg), which oxidize external chemical and biological substrates/targets. Strong photo-virucidal effects toward non-enveloped polyomaviruses and enveloped baculoviruses were observed on the surface of these textiles. The photo-virucidal effect was confirmed by a decrease in virus infectivity. In contrast, no virucidal effect was detected in the absence of light and/or the encapsulated photosensitizer.
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Affiliation(s)
- Yveta Lhotáková
- Faculty of Sciences, Charles University in Prague, Prague, Czech Republic
| | - Lukáš Plíštil
- Faculty of Sciences, Charles University in Prague, Prague, Czech Republic
- Elmarco s.r.o., Liberec, Czech Republic
| | - Alena Morávková
- Faculty of Sciences, Charles University in Prague, Prague, Czech Republic
| | - Pavel Kubát
- J.Heyrovský Institute of Physical Chemistry, v.v.i, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Kamil Lang
- Institute of Inorganic Chemistry, v.v.i, Academy of Sciences of the Czech Republic, Řež, Czech Republic
| | - Jitka Forstová
- Faculty of Sciences, Charles University in Prague, Prague, Czech Republic
- * E-mail: (JF); (JM)
| | - Jiří Mosinger
- Faculty of Sciences, Charles University in Prague, Prague, Czech Republic
- Institute of Inorganic Chemistry, v.v.i, Academy of Sciences of the Czech Republic, Řež, Czech Republic
- * E-mail: (JF); (JM)
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Arenbergerova M, Arenberger P, Bednar M, Kubat P, Mosinger J. Light-activated nanofibre textiles exert antibacterial effects in the setting of chronic wound healing. Exp Dermatol 2012; 21:619-24. [PMID: 22775997 DOI: 10.1111/j.1600-0625.2012.01536.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The maintenance of an aseptic environment for chronic wounds is one of the most challenging tasks in the wound-healing process. Furthermore, the emergence of antibiotic-resistant bacterial strains is on the rise, rendering conventional treatments less effective. A new antibacterial material consisting of a polyurethane Tecophilic(™) nanofibre textile (NT) that was prepared by electrospinning and doped by a tetraphenylporphyrin (TPP) photosensitizer activated by visible light was tested for use in wound beds and bandages. In vitro experiments were performed to assess the antibacterial activity of the textile against three bacterial strains. Furthermore, the new textile was tested in 162 patients with chronic leg ulcers. A complete inhibition of in vitro growth of the three tested bacterial strains was observed on the surface of NTs that had been illuminated with visible light and was clinically demonstrated in 89 patients with leg ulcers. The application of the textiles resulted in a 35% decrease in wound size, as assessed via computer-aided wound tracing. Wound-related pain, which was estimated using a visual analogue scale, was reduced by 71%. The results of this trial reveal that the photoinactivation of bacteria through the photosensitized generation of short-lived, highly reactive singlet oxygen O(2) ((1) Δ(g) ) results in relatively superficial antibacterial effects in comparison with standard antiseptic treatment options. Thus, such treatment does not interfere with the normal healing process. This method therefore represents a suitable alternative to the use of topical antibiotics and antiseptics and demonstrates potentially broad applications in medicine.
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Affiliation(s)
- Monika Arenbergerova
- Department of Dermatology, Third Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
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Ito D, Takahashi Y, Saito H, Nosaka Y. Photosensitizer Dye Nanoparticle-coated Membranes for Singlet Oxygen Generation under Atmospheric Conditions. CHEM LETT 2012. [DOI: 10.1246/cl.2012.877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Daiki Ito
- Top Runner Incubation Center for Academic-Industry Fusion, Nagaoka University of Technology
| | - Yukiko Takahashi
- Top Runner Incubation Center for Academic-Industry Fusion, Nagaoka University of Technology
| | - Hironobu Saito
- Top Runner Incubation Center for Academic-Industry Fusion, Nagaoka University of Technology
| | - Yoshio Nosaka
- Top Runner Incubation Center for Academic-Industry Fusion, Nagaoka University of Technology
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Kirakci K, Kubát P, Dušek M, Fejfarová K, Šícha V, Mosinger J, Lang K. A Highly Luminescent Hexanuclear Molybdenum Cluster - A Promising Candidate toward Photoactive Materials. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200402] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Gmurek M, Mosinger J, Miller JS. 2-Chlorophenol photooxidation using immobilized meso-tetraphenylporphyrin in polyurethane nanofabrics. Photochem Photobiol Sci 2012; 11:1422-7. [DOI: 10.1039/c2pp25010a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jesenská S, Plíštil L, Kubát P, Lang K, Brožová L, Popelka Š, Szatmáry L, Mosinger J. Antibacterial nanofiber materials activated by light. J Biomed Mater Res A 2011; 99:676-83. [DOI: 10.1002/jbm.a.33218] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 07/26/2011] [Accepted: 07/27/2011] [Indexed: 12/13/2022]
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Mosinger J, Lang K, Hostomský J, Franc J, Sýkora J, Hof M, Kubát P. Singlet Oxygen Imaging in Polymeric Nanofibers by Delayed Fluorescence. J Phys Chem B 2010; 114:15773-9. [DOI: 10.1021/jp105789p] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jiří Mosinger
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic, Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Kamil Lang
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic, Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Jiří Hostomský
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic, Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Jiří Franc
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic, Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Jan Sýkora
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic, Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Martin Hof
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic, Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
| | - Pavel Kubát
- Faculty of Science, Charles University in Prague, Hlavova 2030, 128 43 Praha 2, Czech Republic, Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Praha 8, Czech Republic
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Guo H, Ji S, Wu W, Wu W, Shao J, Zhao J. Long-lived emissive intra-ligand triplet excited states (3IL): next generation luminescent oxygen sensing scheme and a case study with red phosphorescent diimine Pt(II) bis(acetylide) complexes containing ethynylated naphthalimide or pyrene subunits. Analyst 2010; 135:2832-40. [PMID: 20835478 DOI: 10.1039/c0an00404a] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The long-lived room temperature (RT) intra-ligand phosphorescence ((3)IL) of dbbpy Pt(II) bis(acetylide) (dbbpy = 4,4'-di-tert-butyl-2,2'-bipyridine) complexes Pt-1 (λ(em) = 629 nm, τ = 118 μs, quantum yield φ = 17.5%) and Pt-3 (λ(em) = 658 nm, τ = 73.6 μs, φ = 2.1%) (dbbpy = 4,4'-di-tert-butyl-2,2'-bipyridine), containing naphthalimide (NI) and pyrene subunits, respectively, were used for enhanced luminescent oxygen sensing, compared to the model complex dbbpyPt (bisphenylacetylide) (Pt-2, λ(em) = 559 nm, τ = 0.7 μs, φ = 49.6%) with the normal (3)MLCT excited state (metal-to-ligand-charge-transfer). The luminescent lifetimes of Pt-1 and Pt-3 are greatly extended by 168-fold and 105-fold, respectively, when compared to that of Pt-2. The (3)IL features of the photoluminescence of Pt-1 and Pt-3 are supported by DFT/TDDFT calculations, which indicated a NI localized triplet excited state but a normal (3)MLCT/(3)LLCT excited state for Pt-2. The luminescent oxygen sensing properties of the complexes in solution as well as in polymer films were studied. In polymer films, the O(2) sensitivity of Pt-1 (quenching constant K(SV) = 0.085 Torr(-1)) and Pt-3 (K(SV) = 0.062 Torr(-1)) is 70-fold and 50-fold of Pt-2 (K(SV) = 0.0012 Torr(-1)), respectively.
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Affiliation(s)
- Huimin Guo
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158 Zhongshan Road, Dalian 116012, P.R. China.
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Wu W, Wu W, Ji S, Guo H, Song P, Han K, Chi L, Shao J, Zhao J. Tuning the emission properties of cyclometalated platinum(II) complexes by intramolecular electron-sink/arylethynylated ligands and its application for enhanced luminescent oxygen sensing. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01794a] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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