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Kunrath MF, Giraldo-Osorno PM, Mendes K, Gomes ATPC, Rosa N, Barros M, Dahlin C. Unveiling the consequences of early human saliva contamination on membranes for guided bone regeneration. J Periodontal Res 2024. [PMID: 38644743 DOI: 10.1111/jre.13266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/23/2024]
Abstract
AIMS GBR membranes have various surface properties designed to elicit positive responses in regenerative clinical procedures; dental clinicians attempt to employ techniques to prevent the direct interaction of contaminated oral fluids with these biomaterials. However, saliva is uninterruptedly exhibited in oral surgical procedures applying GBR membranes, suggesting a persistent interaction with biomaterials and the surrounding oral tissues. This fundamental study aimed to investigate potential alterations in the physical, chemical, and key biological properties of membranes for guided bone regeneration (GBR) caused by isolated early interaction with human saliva. METHODS A reproducible step-by-step protocol for collecting and interacting human saliva with membranes was developed. Subsequently, membranes were evaluated for their physicochemical properties, protein quantification, DNA, and 16S rRNA levels viability of two different cell lines at 1 and 7 days, and ALP activity. Non-interacted membranes and pure saliva of donors were applied as controls. RESULTS Qualitative morphological alterations were noticed; DNA extraction and 16S quantification revealed significantly higher values. Furthermore, the viability of HGF-1 and MC3T3-E1 cells was significantly (p < .05) reduced following saliva interaction with biodegradable membranes. Saliva contamination did not prejudice PTFE membranes significantly in any biological assay. CONCLUSIONS These outcomes demonstrated a susceptible response of biodegradable membranes to isolated early human saliva interaction, suggesting impairment of structural morphology, reduced viability to HGF-1 and MC3T3-E1, and higher absorption/adherence of DNA/16S rRNA. As a result, clinical oral procedures may need corresponding refinements.
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Affiliation(s)
- Marcel F Kunrath
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
- Dentistry Department, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Paula Milena Giraldo-Osorno
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Karina Mendes
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Ana T P C Gomes
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Nuno Rosa
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Marlene Barros
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Christer Dahlin
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
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Lopes PC, Gomes ATPC, Mendes K, Blanco L, Correia MJ. Unlocking the potential of probiotic administration in caries management: a systematic review. BMC Oral Health 2024; 24:216. [PMID: 38341538 PMCID: PMC10859023 DOI: 10.1186/s12903-024-03893-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 01/14/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND The use of prebiotics and/or probiotic bacteria with the potential to modulate the oral ecosystem may play an important role in the prevention and management of dental caries. To assess the evidence of the potential of pre/probiotics both in the prevention and treatment of dental caries, we focused on the PICO question "In individuals with caries, after probiotic administration, is there an improvement in outcomes directly related to caries risk and development?". METHODS An extensive systematic search was conducted in electronic databases PubMed, Web of Science, Scopus and Cochrane, to identify articles with relevant data. This systematic review included trials performed in Humans; published in English; including the observation of patients with caries, with clear indication of the probiotic used and measuring the outcomes directly involved with the cariogenic process, including the quantification of bacteria with cariogenic potential. To evaluate the methodological quality of the studies, the critical assessment tool from the Joanna Briggs Institute was used. RESULTS Eight hundred and fifty articles, potentially relevant, were identified. Following PRISMA guidelines 14 articles were included in this systematic review. Outcomes such as reduction of cariogenic microorganism counts, salivary pH, buffer capacity, and caries activity were assessed. The probiotic most often referred with beneficial results in dental caries outcomes is Lacticaseibacillus rhamnosus. Regarding the most used administration vehicle, in studies with positive effects on the caries management, probiotic supplemented milk could be considered the best administration vehicle. CONCLUSIONS Evidence suggests a beneficial effect of probiotic supplemented milk (Lacticaseibacillus rhamnosus) as an adjuvant for caries prevention and management. However, comparable evidence is scarce and better designed and comparable studies are needed.
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Affiliation(s)
- Pedro C Lopes
- Faculty of Dental Medicine, Center for Interdisciplinary Research in Health, Universidade Católica Portuguesa, Viseu, 3504-505, Portugal
| | - Ana T P C Gomes
- Faculty of Dental Medicine, Center for Interdisciplinary Research in Health, Universidade Católica Portuguesa, Viseu, 3504-505, Portugal
| | - Karina Mendes
- Faculty of Dental Medicine, Center for Interdisciplinary Research in Health, Universidade Católica Portuguesa, Viseu, 3504-505, Portugal
| | - Letícia Blanco
- Department of Surgery, Universidad de Salamanca, Salamanca, Spain
| | - Maria J Correia
- Faculty of Dental Medicine, Center for Interdisciplinary Research in Health, Universidade Católica Portuguesa, Viseu, 3504-505, Portugal.
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Lopes PC, Carvalho T, Gomes ATPC, Veiga N, Blanco L, Correia MJ, Mello-Moura ACV. White spot lesions: diagnosis and treatment - a systematic review. BMC Oral Health 2024; 24:58. [PMID: 38195439 PMCID: PMC10775501 DOI: 10.1186/s12903-023-03720-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/28/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND White spot lesions represent the first stage of caries and their prevalence has been increasing in recent years, particularly in patients undergoing orthodontic treatment. DIferential diagnosis and lesion activity are essential to decide on the clinical approaches to treatment. The aim of this study is to understand if the new diagnostic tools such as fluorescence, microradiography and computed microtomography have the potential to change the conventional treatment of white spots". METHODS A systematic search of available studies in the literature was carried out, using PRISMA guidelines, in Pubmed and Scopus electronic databases and manually to identify relevant articles to answer the PICO question: "Do the new diagnostic tools have the potential to change the conventional treatment of white spots?". This systematic review included randomized controlled trials (RCT), cross-sectional and longitudinal studies complying with the following inclusion criteria: (i) studies in humans, (ii) studies about white spot lesions, (iii) studies published between 2012 and 2023, (iv) studies having both diagnosis and treatment and (v) studies with full text available. In this review we excluded other systematic reviews of clinical trials and in vitro studies. The RoB tool was used to assess the risk of bias. RESULTS The systematic literature search identified 143 potentially relevant references, which after applying the exclusion criteria, resulted in 20 articles. Regarding diagnostic methods, most articles found were based on conventional methods of visual examination (n:10) or fluorescence (n:7). The least referenced diagnostic techniques were based on the use of clinical photographs (n:2), cross-sectional microradiography (n:1) and computed microtomography (n:1). The use of DIAGNOdent was reported by 3 in vitro studies. With regard to therapies, most studies reported the use of infiltrating resin (n:7) and fluoride-based products (n:5). Other studies have reported the use of self-assembling peptide P11-4 (n:1), home care (n:1), casein phosphopeptide-amorphous calcium phosphate (n:2) and hydrochloric acid (n:1). Combination therapies were also considered. CONCLUSION Diagnostic tool does not have the potential to change the form of treatment, whether it is a conventional method or a more differentiated one.
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Affiliation(s)
- Pedro C Lopes
- Faculty of Dental Medicine, Universidade Católica Portuguesa, Portugal PT, Centre for Interdisciplinary Research in Health (CIIS) - Universidade Católica Portuguesa, Viseu, PT, Portugal.
| | - Teresa Carvalho
- Faculty of Dental Medicine, Universidade Católica Portuguesa, Lisbon, PT, Portugal
| | - Ana T P C Gomes
- Faculty of Dental Medicine, Universidade Católica Portuguesa, Portugal PT, Centre for Interdisciplinary Research in Health (CIIS) - Universidade Católica Portuguesa, Viseu, PT, Portugal
| | - Nelio Veiga
- Faculty of Dental Medicine, Universidade Católica Portuguesa, Portugal PT, Centre for Interdisciplinary Research in Health (CIIS) - Universidade Católica Portuguesa, Viseu, PT, Portugal
| | - Letícia Blanco
- Department of Surgery, Universidad de Salamanca, Salamanca, Spain
| | - Maria José Correia
- Faculty of Dental Medicine, Universidade Católica Portuguesa, Portugal PT, Centre for Interdisciplinary Research in Health (CIIS) - Universidade Católica Portuguesa, Viseu, PT, Portugal
| | - Anna Carolina Volpi Mello-Moura
- Faculty of Dental Medicine, Universidade Católica Portuguesa, Portugal PT, Centre for Interdisciplinary Research in Health (CIIS) - Universidade Católica Portuguesa, Viseu, PT, Portugal
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Moura NMM, Moreira X, Da Silva ES, Faria JL, Neves MGPMS, Almeida A, Faustino MAF, Gomes ATPC. Efficient Strategies to Use β-Cationic Porphyrin-Imidazolium Derivatives in the Photoinactivation of Methicillin-Resistant Staphylococcus aureus. Int J Mol Sci 2023; 24:15970. [PMID: 37958951 PMCID: PMC10647407 DOI: 10.3390/ijms242115970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
Bacterial resistance to antibiotics is a critical global health issue and the development of alternatives to conventional antibiotics is of the upmost relevance. Antimicrobial photodynamic therapy (aPDT) is considered a promising and innovative approach for the photoinactivation of microorganisms, particularly in cases where traditional antibiotics may be less effective due to resistance or other limitations. In this study, two β-modified monocharged porphyrin-imidazolium derivatives were efficiently incorporated into polyvinylpyrrolidone (PVP) formulations and supported into graphitic carbon nitride materials. Both porphyrin-imidazolium derivatives displayed remarkable photostability and the ability to generate cytotoxic singlet oxygen. These properties, which have an important impact on achieving an efficient photodynamic effect, were not compromised after incorporation/immobilization. The prepared PVP-porphyrin formulations and the graphitic carbon nitride-based materials displayed excellent performance as photosensitizers to photoinactivate methicillin-resistant Staphylococcus aureus (MRSA) (99.9999% of bacteria) throughout the antimicrobial photodynamic therapy. In each matrix, the most rapid action against S. aureus was observed when using PS 2. The PVP-2 formulation needed 10 min of exposure to white light at 5.0 µm, while the graphitic carbon nitride hybrid GCNM-2 required 20 min at 25.0 µm to achieve a similar level of response. These findings suggest the potential of graphitic carbon nitride-porphyrinic hybrids to be used in the environmental or clinical fields, avoiding the use of organic solvents, and might allow for their recovery after treatment, improving their applicability for bacteria photoinactivation.
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Affiliation(s)
- Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (X.M.); (M.G.P.M.S.N.); (M.A.F.F.)
| | - Xavier Moreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (X.M.); (M.G.P.M.S.N.); (M.A.F.F.)
- Department of Biology and CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
| | - Eliana Sousa Da Silva
- LSRE-LCM—Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; (E.S.D.S.); (J.L.F.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Joaquim Luís Faria
- LSRE-LCM—Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal; (E.S.D.S.); (J.L.F.)
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Maria G. P. M. S. Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (X.M.); (M.G.P.M.S.N.); (M.A.F.F.)
| | - Adelaide Almeida
- Department of Biology and CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
| | - Maria A. F. Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (X.M.); (M.G.P.M.S.N.); (M.A.F.F.)
| | - Ana T. P. C. Gomes
- Department of Biology and CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
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Pedro SN, Gomes ATPC, Vilela C, Vitorino C, Fernandes R, Almeida A, Amaral MH, Freire MG, Silvestre AJD, Freire CSR. Thermo‐Responsive Microemulsions Containing Deep Eutectic‐Based Antibiotic Formulations for Improved Treatment of Resistant Bacterial Ocular Infections. Advanced Therapeutics 2023. [DOI: 10.1002/adtp.202200235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Affiliation(s)
- Sónia N. Pedro
- CICECO‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Aveiro 3810‐193 Portugal
| | - Ana T. P. C. Gomes
- (ATPCG current address) Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar em Saúde Universidade Católica Portuguesa Portugal
- CESAM‐ Centre for Environmental and Marine Studies Department of Biology University of Aveiro Aveiro 3810‐193 Portugal
| | - Carla Vilela
- CICECO‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Aveiro 3810‐193 Portugal
| | - Carla Vitorino
- CQC Department of Chemistry University of Coimbra Rua Larga Coimbra 3004–535 Portugal
- Faculty of Pharmacy University of Coimbra Coimbra 3000–548 Portugal
| | - Rosa Fernandes
- Coimbra Institute for Clinical and Biomedical Research (iCBR) Faculty of Medicine University of Coimbra Coimbra 3000–548 Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB) University of Coimbra Coimbra 3000–548 Portugal
| | - Adelaide Almeida
- CESAM‐ Centre for Environmental and Marine Studies Department of Biology University of Aveiro Aveiro 3810‐193 Portugal
| | - Maria Helena Amaral
- UCIBIO—Applied Molecular Biosciences Unit MedTech—Laboratory of Pharmaceutical Technology Department of Drug Sciences Faculty of Pharmacy University of Porto Porto 4050–313 Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy Faculty of Pharmacy University of Porto Porto 4050 313 Portugal
| | - Mara G. Freire
- CICECO‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Aveiro 3810‐193 Portugal
| | - Armando J. D. Silvestre
- CICECO‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Aveiro 3810‐193 Portugal
| | - Carmen S. R. Freire
- CICECO‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Aveiro 3810‐193 Portugal
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Lacerda PSS, Bartolomeu M, Gomes ATPC, Duarte AS, Almeida A, Faustino MAF, Neves MGPMS, Barata JFB. Can Corrole Dimers Be Good Photosensitizers to Kill Bacteria? Microorganisms 2022; 10:microorganisms10061167. [PMID: 35744685 PMCID: PMC9230841 DOI: 10.3390/microorganisms10061167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/01/2022] [Accepted: 06/03/2022] [Indexed: 01/27/2023] Open
Abstract
Corroles possess key photophysical and photochemical properties to be exploited as therapeutic agents in antimicrobial photodynamic therapy (aPDT). Herein, we present for the first time the antimicrobial efficiency of three corrole dimers and of the corresponding precursor against the Gram(+) bacterium Staphylococcus aureus. Additionally, to explore future clinical applications, the cytotoxicity of the most promising derivatives towards Vero cells was evaluated. The aPDT assays performed under white light irradiation (50 mW/cm2; light dose 450 J/cm2) and at a corrole concentration of 15 µM showed that some dimers were able to reduce 99.9999% of S. aureus strain (decrease of 5 log10 CFU/mL) and their photodynamic efficiency was dependent on position, type of linkage, and aggregation behavior. Under the same light conditions, the corrole precursor 1 demonstrated notable photodynamic efficiency, achieving total photoinactivation (>8.0 log10 CFU/mL reduction) after the same period of irradiation (light dose 450 J/cm2). No cytotoxicity was observed when Vero cells were exposed to corrole 1 and dimer 3 for 24 h according to ISO guidelines (ISO 10993-5) for in vitro cytotoxicity of medical devices. The results show that corrole dimers, dependent on their structures, can be considered good photosensitizers to kill Staphylococcus aureus.
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Affiliation(s)
- Paula S. S. Lacerda
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.G.P.M.S.N.)
| | - Maria Bartolomeu
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T. P. C. Gomes
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), 3504-505 Viseu, Portugal; (A.T.P.C.G.); (A.S.D.)
| | - Ana S. Duarte
- Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), 3504-505 Viseu, Portugal; (A.T.P.C.G.); (A.S.D.)
| | - Adelaide Almeida
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria A. F. Faustino
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.G.P.M.S.N.)
| | - Maria G. P. M. S. Neves
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.G.P.M.S.N.)
| | - Joana F. B. Barata
- CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (P.S.S.L.); (M.B.); (A.A.)
- Correspondence:
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Correia BL, Gomes ATPC, Noites R, Ferreira JMF, Duarte AS. New and Efficient Bioactive Glass Compositions for Controlling Endodontic Pathogens. Nanomaterials 2022; 12:nano12091577. [PMID: 35564288 PMCID: PMC9105659 DOI: 10.3390/nano12091577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/21/2022] [Accepted: 04/29/2022] [Indexed: 01/27/2023]
Abstract
Endodontic treatment aims to conserve teeth through removing infected tissue, disinfecting, and filling/sealing the root canal. One of the most important treatment steps is the removal of microorganisms to avoid reinfection and consequent tooth loss. Due to increased resistance to intracanal medications, new alternative procedures are needed. Thus, an intracanal medication is suggested using three bioactive glass (BG) compositions (BG1, BG2, and BG3) produced by the sol–gel method, with different molar contents of bactericidal oxides. The BGs were morphologically and physically characterized. Their ability to inhibit the growth of two oral pathogens responsible for the failure of endodontic treatments (E. faecalis and C. albicans) was also studied. The results suggest that BG2 and BG3 can inhibit the growth of E. faecalis after 48 h of incubation, and all BG samples have a significant effect on C. albicans survival.
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Affiliation(s)
- Bruna L. Correia
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, Campus Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (B.L.C.); (J.M.F.F.)
| | - Ana T. P. C. Gomes
- Universidade Católica Portuguesa, Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar em Saúde, 3504-505 Viseu, Portugal; (A.T.P.C.G.); (R.N.)
| | - Rita Noites
- Universidade Católica Portuguesa, Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar em Saúde, 3504-505 Viseu, Portugal; (A.T.P.C.G.); (R.N.)
| | - José M. F. Ferreira
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, Campus Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (B.L.C.); (J.M.F.F.)
| | - Ana S. Duarte
- Universidade Católica Portuguesa, Faculdade de Medicina Dentária, Centro de Investigação Interdisciplinar em Saúde, 3504-505 Viseu, Portugal; (A.T.P.C.G.); (R.N.)
- Correspondence: ; Tel.: +351-232-419-500
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Gomes M, Bartolomeu M, Vieira C, Gomes ATPC, Faustino MAF, Neves MGPMS, Almeida A. Photoinactivation of Phage Phi6 as a SARS-CoV-2 Model in Wastewater: Evidence of Efficacy and Safety. Microorganisms 2022; 10:microorganisms10030659. [PMID: 35336234 PMCID: PMC8954818 DOI: 10.3390/microorganisms10030659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/08/2022] [Accepted: 03/14/2022] [Indexed: 02/07/2023] Open
Abstract
The last two years have been marked by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. This virus is found in the intestinal tract; it reaches wastewater systems and, consequently, the natural receiving water bodies. As such, inefficiently treated wastewater (WW) can be a means of contamination. The currently used methods for the disinfection of WW can lead to the formation of toxic compounds and can be expensive or inefficient. As such, new and alternative approaches must be considered, namely, photodynamic inactivation (PDI). In this work, the bacteriophage φ6 (or, simply, phage φ6), which has been used as a suitable model for enveloped RNA viruses, such as coronaviruses (CoVs), was used as a model of SARS-CoV-2. Firstly, to understand the virus’s survival in the environment, phage φ6 was subjected to different laboratory-controlled environmental conditions (temperature, pH, salinity, and solar and UV-B irradiation), and its persistence over time was assessed. Second, to assess the efficiency of PDI towards the virus, assays were performed in both phosphate-buffered saline (PBS), a commonly used aqueous matrix, and a secondarily treated WW (a real WW matrix). Third, as WW is generally discharged into the marine environment after treatment, the safety of PDI-treated WW was assessed through the determination of the viability of native marine water microorganisms after their contact with the PDI-treated effluent. Overall, the results showed that, when used as a surrogate for SARS-CoV-2, phage φ6 remains viable in different environmental conditions for a considerable period. Moreover, PDI proved to be an efficient approach in the inactivation of the viruses, and the PDI-treated effluent showed no toxicity to native aquatic microorganisms under realistic dilution conditions, thus endorsing PDI as an efficient and safe tertiary WW disinfection method. Although all studies were performed with phage φ6, which is considered a suitable model of SARS-CoV-2, further studies using SARS-CoV-2 are necessary; nevertheless, the findings show the potential of PDI for controlling SARS-CoV-2 in WW.
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Affiliation(s)
- Marta Gomes
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (M.G.); (M.B.); (C.V.)
| | - Maria Bartolomeu
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (M.G.); (M.B.); (C.V.)
| | - Cátia Vieira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (M.G.); (M.B.); (C.V.)
| | - Ana T. P. C. Gomes
- Center for Interdisciplinary Investigation (CIIS), Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- Correspondence: (A.T.P.C.G.); (M.A.F.F.); (A.A.)
| | - Maria Amparo F. Faustino
- Department of Chemistry and LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal;
- Correspondence: (A.T.P.C.G.); (M.A.F.F.); (A.A.)
| | | | - Adelaide Almeida
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; (M.G.); (M.B.); (C.V.)
- Correspondence: (A.T.P.C.G.); (M.A.F.F.); (A.A.)
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Pedro SN, Gomes ATPC, Oskoei P, Oliveira H, Almeida A, Freire MG, Silvestre AJD, Freire CSR. Boosting antibiotics performance by new formulations with deep eutectic solvents. Int J Pharm 2022; 616:121566. [PMID: 35151818 DOI: 10.1016/j.ijpharm.2022.121566] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/01/2022] [Accepted: 02/07/2022] [Indexed: 11/26/2022]
Abstract
The critical scenario of antimicrobial resistance to antibiotics highlights the need for improved therapeutics and/or formulations. Herein, we demonstrate that deep eutectic solvents (DES) formulations are very promising to remarkably improve the solubility, stability and therapeutic efficacy of antibiotics, such as ciprofloxacin. DES aqueous solutions enhance the solubility of ciprofloxacin up to 430-fold while extending the antibiotic stability. The developed formulations can improve, by 2 to 4-fold, the susceptibility of Gram-negative (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus) bacteria to the antibiotic. They also improve the therapeutic efficacy at concentrations where bacteria present resistance, without promoting tolerance development to ciprofloxacin. Furthermore, the incorporation of DES decreases the toxicity of ciprofloxacin towards immortalized human epidermal keratinocytes (HaCat cells). The results herein reveal the pioneering use of DES in fluoroquinolone-based formulations and their impact on the antibiotic's characteristics and on its therapeutic action.
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Affiliation(s)
- Sónia N Pedro
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T P C Gomes
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Párástu Oskoei
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Helena Oliveira
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Adelaide Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Armando J D Silvestre
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carmen S R Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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10
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Gomes ATPC, Faustino MAF, Neves MGPMS, Almeida A. Bioluminescent Models to Evaluate the Efficiency of Light-Based Antibacterial Approaches. Methods Mol Biol 2022; 2451:631-669. [PMID: 35505039 DOI: 10.1007/978-1-0716-2099-1_34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The emergence of microbial resistance to antimicrobials among several common pathogenic microbial strains is an increasing problem worldwide. Thus, it is urgent to develop not only new antimicrobial therapeutics to fight microbial infections, but also new effective, rapid, and inexpensive methods to monitor the efficacy of these new therapeutics. Antimicrobial photodynamic therapy (aPDT) and antimicrobial blue light (aBL) therapy are receiving considerable attention for their antimicrobial potential and represent realistic alternatives to antibiotics. To monitor the photoinactivation process provided by aPDT and aBL, faster and more effective methods are required instead of laborious conventional plating and overnight incubation procedures. Bioluminescent microbial models are very interesting in this context. Light emission from bioluminescent microorganisms is a highly sensitive indication of their metabolic activity and can be used to monitor, in real time, the effects of antimicrobial agents and therapeutics. This chapter reviews the efforts of the scientific community concerning the development of in vitro, ex vivo, and in vivo bioluminescent bacterial models and their potential to evaluate the efficiency of aPDT and aBL in the inactivation of bacteria.
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Affiliation(s)
- Ana T P C Gomes
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Maria A F Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Maria G P M S Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Adelaide Almeida
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
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11
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Menilli L, Monteiro AR, Lazzarotto S, Morais FMP, Gomes ATPC, Moura NMM, Fateixa S, Faustino MAF, Neves MGPMS, Trindade T, Miolo G. Graphene Oxide and Graphene Quantum Dots as Delivery Systems of Cationic Porphyrins: Photo-Antiproliferative Activity Evaluation towards T24 Human Bladder Cancer Cells. Pharmaceutics 2021; 13:pharmaceutics13091512. [PMID: 34575587 PMCID: PMC8470602 DOI: 10.3390/pharmaceutics13091512] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/01/2022] Open
Abstract
The development of new photodynamic therapy (PDT) agents designed for bladder cancer (BC) treatments is of utmost importance to prevent its recurrence and progression towards more invasive forms. Here, three different porphyrinic photosensitizers (PS) (TMPyP, Zn-TMPyP, and P1-C5) were non-covalently loaded onto graphene oxide (GO) or graphene quantum dots (GQDs) in a one-step process. The cytotoxic effects of the free PS and of the corresponding hybrids were compared upon blue (BL) and red-light (RL) exposure on T24 human BC cells. In addition, intracellular reactive oxygen species (ROS) and singlet oxygen generation were measured. TMPyP and Zn-TMPyP showed higher efficiency under BL (IC50: 0.42 and 0.22 μm, respectively), while P1-C5 was more active under RL (IC50: 0.14 μm). In general, these PS could induce apoptotic cell death through lysosomes damage. The in vitro photosensitizing activity of the PS was not compromised after their immobilization onto graphene-based nanomaterials, with Zn-TMPyP@GQDs being the most promising hybrid system under RL (IC50: 0.37 μg/mL). Overall, our data confirm that GO and GQDs may represent valid platforms for PS delivery, without altering their performance for PDT on BC cells.
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Affiliation(s)
- Luca Menilli
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (L.M.); (S.L.)
- Department of Biology, University of Padova, 35131 Padova, Italy
| | - Ana R. Monteiro
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (S.F.)
- LAQV—Requimte, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (F.M.P.M.); (N.M.M.M.); (M.A.F.F.)
| | - Silvia Lazzarotto
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (L.M.); (S.L.)
| | - Filipe M. P. Morais
- LAQV—Requimte, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (F.M.P.M.); (N.M.M.M.); (M.A.F.F.)
| | - Ana T. P. C. Gomes
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal;
- Center for Interdisciplinary Investigation (CIIS), Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Nuno M. M. Moura
- LAQV—Requimte, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (F.M.P.M.); (N.M.M.M.); (M.A.F.F.)
| | - Sara Fateixa
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (S.F.)
| | - Maria A. F. Faustino
- LAQV—Requimte, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (F.M.P.M.); (N.M.M.M.); (M.A.F.F.)
| | - Maria G. P. M. S. Neves
- LAQV—Requimte, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (F.M.P.M.); (N.M.M.M.); (M.A.F.F.)
- Correspondence: (M.G.P.M.S.N.); (T.T.); (G.M.)
| | - Tito Trindade
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (S.F.)
- Correspondence: (M.G.P.M.S.N.); (T.T.); (G.M.)
| | - Giorgia Miolo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy; (L.M.); (S.L.)
- Correspondence: (M.G.P.M.S.N.); (T.T.); (G.M.)
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Gomes ATPC, Neves MGPMS, Fernandes R, Ribeiro CF, Cavaleiro JAS, Moura NMM. Unraveling the Photodynamic Activity of Cationic Benzoporphyrin-Based Photosensitizers against Bladder Cancer Cells. Molecules 2021; 26:5312. [PMID: 34500746 PMCID: PMC8434352 DOI: 10.3390/molecules26175312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/16/2021] [Accepted: 08/26/2021] [Indexed: 02/01/2023] Open
Abstract
In this study, we report the preparation of new mono-charged benzoporphyrin complexes by reaction of the appropriate neutral benzoporphyrin with (2,2'-bipyridine)dichloroplatinum(II) and of the analogs' derivatives synthesized through alkylation of the neutral scaffold with iodomethane. All derivatives were incorporated into polyvinylpyrrolidone (PVP) micelles. The ability of the resultant formulations to generate reactive oxygen species was evaluated, mainly the singlet oxygen formation. Then, the capability of the PVP formulations to act as photosensitizers against bladder cancer cells was assessed. Some of the studied formulations were the most active photosensitizers causing a decrease in HT-1376 cells' viability. This creates an avenue to further studies related to bladder cancer cells.
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Affiliation(s)
- Ana T. P. C. Gomes
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (R.F.); (C.F.R.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | | | - Rosa Fernandes
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (R.F.); (C.F.R.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Carlos F. Ribeiro
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (R.F.); (C.F.R.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal
| | - José A. S. Cavaleiro
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
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Costa P, Gomes ATPC, Braz M, Pereira C, Almeida A. Application of the Resazurin Cell Viability Assay to Monitor Escherichia coli and Salmonella Typhimurium Inactivation Mediated by Phages. Antibiotics (Basel) 2021; 10:antibiotics10080974. [PMID: 34439024 PMCID: PMC8389016 DOI: 10.3390/antibiotics10080974] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 01/21/2023] Open
Abstract
Bacterial inactivation using bacteriophages (or phages) has emerged as an effective solution for bacterial infections, but the screening methods used to evaluate the effectiveness of the phages to inactivate bacteria are not fast, reliable or precise enough. The efficiency of bacterial inactivation by phages has been evaluated by monitoring bacterial concentration either by counting colony-forming units (CFU), a laborious and time-consuming method, or by monitoring the optical density (OD), a less sensitive method. In this study, the resazurin cell viability assay was used to monitor the viability of bacteria from different genera during the inactivation by different phages, and the results were compared with the standard methods used to assess bacterial inactivation. The results showed that the resazurin colorimetric cell viability assay produces similar results to the standard method of colony-counting and giving, and also more sensitive results than the OD method. The resazurin assay can be used to quickly obtain the results of the cell viability effect profile using two different bacterial strains and several different phages at the same time, which is extremely valuable in screening studies. Moreover, this methodology is established as an effective, accurate and rapid method when compared to the ones widely used to monitor bacterial inactivation mediated by phages.
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14
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Vallejo MCS, Moura NMM, Gomes ATPC, Joaquinito ASM, Faustino MAF, Almeida A, Gonçalves I, Serra VV, Neves MGPMS. The Role of Porphyrinoid Photosensitizers for Skin Wound Healing. Int J Mol Sci 2021; 22:4121. [PMID: 33923523 PMCID: PMC8072979 DOI: 10.3390/ijms22084121] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/04/2021] [Accepted: 04/10/2021] [Indexed: 12/14/2022] Open
Abstract
Microorganisms, usually bacteria and fungi, grow and spread in skin wounds, causing infections. These infections trigger the immune system and cause inflammation and tissue damage within the skin or wound, slowing down the healing process. The use of photodynamic therapy (PDT) to eradicate microorganisms has been regarded as a promising alternative to anti-infective therapies, such as those based on antibiotics, and more recently, is being considered for skin wound-healing, namely for infected wounds. Among the several molecules exploited as photosensitizers (PS), porphyrinoids exhibit suitable features for achieving those goals efficiently. The capability that these macrocycles display to generate reactive oxygen species (ROS) gives a significant contribution to the regenerative process. ROS are responsible for avoiding the development of infections by inactivating microorganisms such as bacteria but also by promoting cell proliferation through the activation of stem cells which regulates inflammatory factors and collagen remodeling. The PS can act solo or combined with several materials, such as polymers, hydrogels, nanotubes, or metal-organic frameworks (MOF), keeping both the microbial photoinactivation and healing/regenerative processes' effectiveness. This review highlights the developments on the combination of PDT approach and skin wound healing using natural and synthetic porphyrinoids, such as porphyrins, chlorins and phthalocyanines, as PS, as well as the prodrug 5-aminolevulinic acid (5-ALA), the natural precursor of protoporphyrin-IX (PP-IX).
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Affiliation(s)
- Mariana C. S. Vallejo
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
| | - Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
| | - Ana T. P. C. Gomes
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.T.P.C.G.); (A.A.)
| | - Ana S. M. Joaquinito
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.T.P.C.G.); (A.A.)
| | - Maria Amparo F. Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
| | - Adelaide Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.T.P.C.G.); (A.A.)
| | - Idalina Gonçalves
- CICECO, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Vanda Vaz Serra
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal;
| | - Maria Graça P. M. S. Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
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do Prado-Silva L, Gomes ATPC, Mesquita MQ, Neri-Numa IA, Pastore GM, Neves MGPMS, Faustino MAF, Almeida A, Braga GÚL, Sant'Ana AS. Antimicrobial photodynamic treatment as an alternative approach for Alicyclobacillus acidoterrestris inactivation. Int J Food Microbiol 2020; 333:108803. [PMID: 32798958 DOI: 10.1016/j.ijfoodmicro.2020.108803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/12/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022]
Abstract
Alicyclobacillus acidoterrestris is a cause of major concern for the orange juice industry due to its thermal and chemical resistance, as well as its spoilage potential. A. acidoterrestris spoilage of orange juice is due to off-flavor taints from guaiacol production and some halophenols. The present study aimed to evaluate the effectiveness of antimicrobial Photodynamic Treatment (aPDT) as an emerging technology to inactivate the spores of A. acidoterrestris. The aPDT efficiency towards A. acidoterrestris was evaluated using as photosensitizers the tetracationic porphyrin (Tetra-Py+-Me) and the phenothiazinium dye new methylene blue (NMB) in combination with white light-emitting diode (LED; 400-740 nm; 65-140 mW/cm2). The spores of A. acidoterrestris were cultured on YSG agar plates (pH 3.7 ± 0.1) at 45 °C for 28 days and submitted to the aPDT with Tetra-Py+-Me and NMB at 10 μM in phosphate-buffered saline (PBS) in combination with white light (140 mW/cm2). The use of Tetra-Py+-Me at 10 μM resulted in a 7.3 ± 0.04 log reduction of the viability of A. acidoterrestris spores. No reductions in the viability of this bacterium were observed with NMB at 10 μM. Then, the aPDT with Tetra-Py+-Me and NMB at 10 μM in orange juice (UHT; pH 3.9; 11°Brix) alone and combined with potassium iodide (KI) was evaluated. The presence of KI was able to potentiate the aPDT process in orange juice, promoting the inactivation of 5 log CFU/mL of A. acidoterrestris spores after 10 h of white light exposition (140 mW/cm2). However, in the absence of KI, both photosensitizers did not promote a significant reduction in the spore viability. The inactivation of A. acidoterrestris spores artificially inoculated in orange peels (105 spores/mL) was also assessed using Tetra-Py+-Me at 10 and 50 μM in the presence and absence of KI in combination with white light (65 mW/cm2). No significant reductions were observed (p < .05) when Tetra-Py+-Me was used at 10 μM, however at the highest concentration (50 μM) a significant spore reduction (≈ 2.8 log CFU/mL reductions) in orange peels was observed after 6 h of sunlight exposition (65 mW/cm2). Although the color, total phenolic content (TPC), and antioxidant capacity of orange juice and peel (only color evaluation) seem to have been affected by light exposition, the impact on the visual and nutritional characteristics of the products remains inconclusive so far. Besides that, the results found suggest that aPDT can be a potential method for the reduction of A. acidoterrestris spores on orange groves.
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Affiliation(s)
- Leonardo do Prado-Silva
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Ana T P C Gomes
- Department of Biology and CESAM, University of Aveiro, Aveiro, Portugal
| | - Mariana Q Mesquita
- Department of Chemistry and LAQV-REQUIMTE, University of Aveiro, Aveiro, Portugal
| | - Iramaia A Neri-Numa
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Glaucia M Pastore
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Maria G P M S Neves
- Department of Chemistry and LAQV-REQUIMTE, University of Aveiro, Aveiro, Portugal
| | - Maria A F Faustino
- Department of Chemistry and LAQV-REQUIMTE, University of Aveiro, Aveiro, Portugal
| | - Adelaide Almeida
- Department of Biology and CESAM, University of Aveiro, Aveiro, Portugal
| | - Gilberto Ú L Braga
- Department of Clinical, Toxicological and Bromatological Analyses, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil.
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Lopes MM, Bartolomeu M, Gomes ATPC, Figueira E, Pinto R, Reis L, Balcão VM, Faustino MAF, Neves MGPMS, Almeida A. Antimicrobial Photodynamic Therapy in the Control of Pseudomonas syringae pv. actinidiae Transmission by Kiwifruit Pollen. Microorganisms 2020; 8:microorganisms8071022. [PMID: 32664270 PMCID: PMC7409219 DOI: 10.3390/microorganisms8071022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 12/17/2022] Open
Abstract
Pseudomonas syringae pv. actinidiae (Psa) is a phytopathogen responsible for bacterial canker in kiwifruit plants and can be disseminated through pollen. This study aimed to evaluate the effectiveness of antimicrobial photodynamic therapy (aPDT) in the inactivation of Psa on kiwifruit pollen using New Methylene Blue (NMB) and Methylene Blue (MB) in the presence/absence of potassium iodide (KI). Pollen germination assays were also performed to evaluate if it was affected by aPDT. Higher reduction of Psa was achieved using NMB (5.0 μM) combined with KI (100 mM) in vitro (ca. 8 log CFU mL−1 after 90 min of irradiation), while NMB alone promoted a lower reduction (3.7 log CFU mL−1). The most efficient NMB concentration with KI was used to study the photodynamic efficiency of MB (5.0 μM). MB with KI photo-inactivated Psa more efficiently than NMB, causing the same bacterial reduction (ca. 8 log CFU mL−1) in half the irradiation time (45 min). Therefore, MB was selected for the subsequent ex vivo aPDT assays in pollen. Almost all the Psa cells added artificially to the pollen (3.2 log CFU mL−1) were photo-inactivated (3.1 log CFU mL−1), whereas aPDT had a low effect on pollen natural microorganisms. When KI was added, a significant increase in aPDT effectiveness was observed (4.5 log CFU mL−1). No negative effects were observed in the pollen germination after aPDT. The results show aPDT is an effective and safe method to Psa inactivation on kiwifruit pollen, and MB use is a promising alternative in the control of Psa transmission.
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Affiliation(s)
- Margarida M. Lopes
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (M.M.L.); (M.B.); (A.T.P.C.G.); (E.F.); (R.P.); (V.M.B.)
| | - Maria Bartolomeu
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (M.M.L.); (M.B.); (A.T.P.C.G.); (E.F.); (R.P.); (V.M.B.)
| | - Ana T. P. C. Gomes
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (M.M.L.); (M.B.); (A.T.P.C.G.); (E.F.); (R.P.); (V.M.B.)
| | - Etelvina Figueira
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (M.M.L.); (M.B.); (A.T.P.C.G.); (E.F.); (R.P.); (V.M.B.)
| | - Ricardo Pinto
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (M.M.L.); (M.B.); (A.T.P.C.G.); (E.F.); (R.P.); (V.M.B.)
| | - Luís Reis
- APK-Associação Portuguesa de Kiwicultores, 4520-249 Santa Maria da Feira, Portugal;
| | - Victor M. Balcão
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (M.M.L.); (M.B.); (A.T.P.C.G.); (E.F.); (R.P.); (V.M.B.)
- PhageLab-Laboratory of Biofilms and Bacteriophages, University of Sorocaba, 18023-000 Sorocaba/SP, Brazil
| | - M. Amparo F. Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - M. Graça P. M. S. Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
- Correspondence: (M.G.P.M.S.N.); (A.A.); Tel.: +351-234-370-710 (M.G.P.M.S.N.); +351-234-370-784 (A.A.)
| | - Adelaide Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (M.M.L.); (M.B.); (A.T.P.C.G.); (E.F.); (R.P.); (V.M.B.)
- Correspondence: (M.G.P.M.S.N.); (A.A.); Tel.: +351-234-370-710 (M.G.P.M.S.N.); +351-234-370-784 (A.A.)
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Eddahmi M, Sousa V, Moura NMM, Dias CJ, Bouissane L, Faustino MAF, Cavaleiro JAS, Gomes ATPC, Almeida A, Neves MGPMS, Mostapha Rakib E. New nitroindazole-porphyrin conjugates: Synthesis, characterization and antibacterial properties. Bioorg Chem 2020; 101:103994. [PMID: 32569896 DOI: 10.1016/j.bioorg.2020.103994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/04/2020] [Accepted: 06/02/2020] [Indexed: 02/07/2023]
Abstract
The synthesis of new porphyrin-indazole hybrids by a Knoevenagel condensation of 2-formyl-5,10,15,20-tetraphenylporphyrin and N-methyl-nitroindazolylacetonitrile derivatives is reported. The target compounds were isolated in moderate to good yields (32-57%) and some of the isolated porphyrin-indazole conjugates showed good performance in the generation of singlet oxygen when irradiated with visible light. Their efficiency as photosensitizers in the photoinactivation of methicillin resistant Staphylococcus aureus-MRSA was evaluated. All derivatives showed to be able to photoinactivate the MRSA bacteria. Compound 3a appears to be the most promising photosensitiser (PS) in the photoinactivation of these bacteria, despite being the least efficient in singlet oxygen generation. The addition of potassium iodide (KI) significantly potentiated the antimicrobial Photodynamic Therapy (aPDT) process mediated by all the analysed porphyrin-indazole conjugates. The combined action of nitroindazole-porphyrins with potassium iodide (KI) action appears to be promising in the photoinactivation of MRSA.
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Affiliation(s)
- Mohammed Eddahmi
- LAQV-REQUIMTE, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal; Laboratory of Organic and Analytic Chemistry, Faculty of Sciences and Technics, Sultan Moulay Slimane University, BP 523, 2300 Beni-Mellal, Morocco
| | - Vera Sousa
- CESAM and Biology Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Nuno M M Moura
- LAQV-REQUIMTE, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Cristina J Dias
- LAQV-REQUIMTE, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Latifa Bouissane
- Laboratory of Organic and Analytic Chemistry, Faculty of Sciences and Technics, Sultan Moulay Slimane University, BP 523, 2300 Beni-Mellal, Morocco
| | - Maria A F Faustino
- LAQV-REQUIMTE, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - José A S Cavaleiro
- LAQV-REQUIMTE, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T P C Gomes
- Laboratory of Organic and Analytic Chemistry, Faculty of Sciences and Technics, Sultan Moulay Slimane University, BP 523, 2300 Beni-Mellal, Morocco.
| | - Adelaide Almeida
- CESAM and Biology Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria G P M S Neves
- LAQV-REQUIMTE, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - El Mostapha Rakib
- Laboratory of Organic and Analytic Chemistry, Faculty of Sciences and Technics, Sultan Moulay Slimane University, BP 523, 2300 Beni-Mellal, Morocco.
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Gamelas SRD, Gomes ATPC, Faustino MAF, Tomé AC, Tomé JPC, Almeida A, Lourenço LMO. Photoinactivation of Escherichia coli with Water-Soluble Ammonium-Substituted Phthalocyanines. ACS Appl Bio Mater 2020; 3:4044-4051. [DOI: 10.1021/acsabm.0c00128] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sara R. D. Gamelas
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T. P. C. Gomes
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - Augusto C. Tomé
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João P. C. Tomé
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Adelaide Almeida
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Leandro M. O. Lourenço
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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19
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Sousa V, Gomes ATPC, Freitas A, Faustino MAF, Neves MGPMS, Almeida A. Photodynamic Inactivation of Candida albicans in Blood Plasma and Whole Blood. Antibiotics (Basel) 2019; 8:antibiotics8040221. [PMID: 31766190 PMCID: PMC6963715 DOI: 10.3390/antibiotics8040221] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/10/2019] [Accepted: 11/11/2019] [Indexed: 11/17/2022] Open
Abstract
The few approved disinfection techniques for blood derivatives promote damage in the blood components, representing risks for the transfusion receptor. Antimicrobial photodynamic therapy (aPDT) seems to be a promising approach for the photoinactivation of pathogens in blood, but only three photosensitizers (PSs) have been approved, methylene blue (MB) for plasma and riboflavin and amotosalen for plasma and platelets. In this study, the efficiency of the porphyrinic photosensitizer Tri-Py(+)-Me and of the porphyrinic formulation FORM was studied in the photoinactivation of Candida albicans in plasma and in whole blood and the results were compared to the ones obtained with the already approved PS MB. The results show that FORM and Tri-Py(+)-Me are promising PSs to inactivate C. albicans in plasma. Although in whole blood the inactivation rates obtained were higher than the ones obtained with MB, further improvements are required. None of these PSs had promoted hemolysis at the isotonic conditions when hemolysis was evaluated in whole blood and after the addition of treated plasma with these PSs to concentrates of red blood cells.
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Affiliation(s)
- Vera Sousa
- Department of Biology & CESAM, University of Aveiro, Aveiro 3810-193, Portugal;
| | - Ana T. P. C. Gomes
- Department of Biology & CESAM, University of Aveiro, Aveiro 3810-193, Portugal;
- Correspondence: (A.T.P.C.G.); (M.A.F.F.); (A.A.)
| | - Américo Freitas
- Clinical Analysis Laboratory Avelab, Rua Cerâmica do Vouga, Aveiro 3800-011, Portugal;
| | - Maria A. F. Faustino
- Department of Chemistry & QOPNA and LAQV-REQUIMTE, University of Aveiro, Aveiro 3810-193, Portugal;
- Correspondence: (A.T.P.C.G.); (M.A.F.F.); (A.A.)
| | - Maria G. P. M. S. Neves
- Department of Chemistry & QOPNA and LAQV-REQUIMTE, University of Aveiro, Aveiro 3810-193, Portugal;
| | - Adelaide Almeida
- Department of Biology & CESAM, University of Aveiro, Aveiro 3810-193, Portugal;
- Correspondence: (A.T.P.C.G.); (M.A.F.F.); (A.A.)
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20
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Santos AR, Batista AFP, Gomes ATPC, Neves MDGPMS, Faustino MAF, Almeida A, Hioka N, Mikcha JMG. The Remarkable Effect of Potassium Iodide in Eosin and Rose Bengal Photodynamic Action against Salmonella Typhimurium and Staphylococcus aureus. Antibiotics (Basel) 2019; 8:E211. [PMID: 31694195 PMCID: PMC6963404 DOI: 10.3390/antibiotics8040211] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/01/2019] [Accepted: 11/04/2019] [Indexed: 11/17/2022] Open
Abstract
Antimicrobial photodynamic therapy (aPDT) has been shown as a promising technique to inactivate foodborne bacteria, without inducing the development of bacterial resistance. Knowing that addition of inorganic salts, such as potassium iodide (KI), can modulate the photodynamic action of the photosensitizer (PS), we report in this study the antimicrobial effect of eosin (EOS) and rose bengal (RB) combined with KI against Salmonella enterica serovar Typhimurium and Staphylococcus aureus. Additionally, the possible development of bacterial resistance after this combined aPDT protocol was evaluated. The combination of EOS or RB, at all tested concentrations, with KI at 100 mM, was able to efficiently inactivate S. Typhimurium and S. aureus. This combined approach allows a reduction in the PS concentration up to 1000 times, even against one of the most common foodborne pathogenics, S. Typhimurium, a gram-negative bacterium which is not so prone to inactivation with xanthene dyes when used alone. The photoinactivation of S. Typhimurium and S. aureus by both xanthenes with KI did not induce the development of resistance. The low price of the xanthene dyes, the non-toxic nature of KI, and the possibility of reducing the PS concentration show that this technology has potential to be easily transposed to the food industry.
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Affiliation(s)
- Adriele R. Santos
- Postgraduate Program in Food Science, State University of Maringá, Maringá 87020-900, Brazil;
| | - Andréia F. P. Batista
- Postgraduate Program in Food Science, State University of Maringá, Maringá 87020-900, Brazil;
| | - Ana T. P. C. Gomes
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Maria da Graça P. M. S. Neves
- QOPNA& LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.d.G.P.M.S.N.); (M.A.F.F.)
| | - Maria Amparo F. Faustino
- QOPNA& LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.d.G.P.M.S.N.); (M.A.F.F.)
| | - Adelaide Almeida
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Noboru Hioka
- Department of Chemistry, State University of Maringá, Maringá 87020-900, Brazil;
| | - Jane M. G. Mikcha
- Department of Clinical Analysis and Biomedicine, State University of Maringá, Maringá 87020-900, Brazil
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Vieira C, Santos A, Mesquita MQ, Gomes ATPC, Neves MGPMS, Faustino MAF, Almeida A. Advances in aPDT based on the combination of a porphyrinic formulation with potassium iodide: Effectiveness on bacteria and fungi planktonic/biofilm forms and viruses. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619500408] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The increasing world-wide rate of antibiotic resistance as well as the capacity of microorganisms to form biofilms, have led to a higher incidence of mortal infections that require alternative methods for their control. Antimicrobial photodynamic therapy (aPDT) emerged as an effective solution against resistant strains. The present work aims to evaluate the aPDT efficiency of a photosensitizer (PS) based on a low-cost formulation constituted by five cationic porphyrins (FORM) and its potentiation effect by KI on a broad spectrum of microorganisms under white light (380–700 nm, 25 W/m[Formula: see text]. The aPDT assays were performed with different concentrations of FORM (0.1 to 5.0 [Formula: see text]M) and 100 mM of KI on planktonic and biofilm forms of gram-positive (methicillin resistant Staphylococcus aureus–MRSA) and gram-negative (Escherichia coli resistant to chloramphenicol and ampicillin) bacteria, of the fungi Candida albicans and on a T4-like bacteriophage as a mammalian virus model. The results indicate that the FORM alone is an efficient PS to photoinactivate not only gram-negative and gram-positive bacteria, but also C. albicans, in planktonic and biofilm forms, and T4-like phage at low concentrations (<5.0 [Formula: see text]M). The presence of KI enhanced the photodynamic effect of this FORM for all microorganisms on the planktonic form, allowing the reduction of PS concentration and treatment time. The results also show that the combination FORM/KI is highly efficient in the elimination of already well-established biofilms of E. coli,S. aureus and C. albicans. This effect is probably associated with longer-lived iodine reactive species produced during the aPDT treatment.
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Affiliation(s)
- Cátia Vieira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Adriele Santos
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
- Department of Clinical Analysis and Biomedicine, State University of Maringá, 87020-900, Maringá - Paraná, Brazil
| | - Mariana Q. Mesquita
- QOPNA & LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T. P. C. Gomes
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M. Graça P. M. S. Neves
- QOPNA & LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M. Amparo F. Faustino
- QOPNA & LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Adelaide Almeida
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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Sagrillo FS, Dias C, Gomes ATPC, Faustino MAF, Almeida A, Gonçalves de Souza A, Costa ARP, Boechat FDCS, Bastos Vieira de Souza MC, Neves MGPMS, Cavaleiro JAS. Synthesis and photodynamic effects of new porphyrin/4-oxoquinoline derivatives in the inactivation of S. aureus. Photochem Photobiol Sci 2019; 18:1910-1922. [DOI: 10.1039/c9pp00102f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
New porphyrin/4-oxoquinoline conjugates were synthesized and shown to be excellent photosensitizing agents in the inactivation of S. aureus by the antimicrobial photodynamic therapy protocol.
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Affiliation(s)
- Fernanda Savacini Sagrillo
- QOPNA & LAQV-REQUIMTE and Chemistry Department
- University of Aveiro
- 3810-193 Aveiro
- Portugal
- Programa de Pós-Graduação em Química
| | - Cristina Dias
- Programa de Pós-Graduação em Química
- Instituto de Química
- Universidade Federal Fluminense
- Rio de Janeiro
- Brazil
| | | | - Maria A. F. Faustino
- QOPNA & LAQV-REQUIMTE and Chemistry Department
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Adelaide Almeida
- Department of Biology and CESAM
- University of Aveiro
- Aveiro
- Portugal
| | - Alan Gonçalves de Souza
- Programa de Pós-Graduação em Química
- Instituto de Química
- Universidade Federal Fluminense
- Rio de Janeiro
- Brazil
| | | | | | | | | | - José A. S. Cavaleiro
- QOPNA & LAQV-REQUIMTE and Chemistry Department
- University of Aveiro
- 3810-193 Aveiro
- Portugal
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23
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Vieira C, Gomes ATPC, Mesquita MQ, Moura NMM, Neves MGPMS, Faustino MAF, Almeida A. An Insight Into the Potentiation Effect of Potassium Iodide on aPDT Efficacy. Front Microbiol 2018; 9:2665. [PMID: 30510542 PMCID: PMC6252324 DOI: 10.3389/fmicb.2018.02665] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 10/18/2018] [Indexed: 12/15/2022] Open
Abstract
Antimicrobial photodynamic therapy (aPDT) is gaining a special importance as an effective approach against multidrug-resistant strains responsible of fatal infections. The addition of potassium iodide (KI), a non-toxic salt, is recognized to increase the aPDT efficiency of some photosensitizers (PSs) on a broad-spectrum of microorganisms. As the reported cases only refer positive aPDT potentiation results, in this work we selected a broad range of porphyrinic and non-porphyrinic PSs in order to gain a more comprehensive knowledge about this aPDT potentiation by KI. For this evaluation were selected a series of meso-tetraarylporphyrins positively charged at meso positions or at β-pyrrolic positions and the non-porphyrinic dyes Methylene blue, Rose Bengal, Toluidine Blue O, Malachite Green and Crystal Violet; the assays were performed using a bioluminescent E. coli strain as a model. The results indicate that KI has also the ability to potentiate the aPDT process mediated by some of the cationic PSs [Tri-Py(+)-Me, Tetra-Py(+)-Me, Form, RB, MB, Mono-Py(+)-Me, β-ImiPhTPP, β-ImiPyTPP, and β-BrImiPyTPP] allowing a drastic reduction of the treatment time as well as of the PS concentration. However, the efficacy of some porphyrinic and non-porphyrinic PSs [Di-Py(+)-Me opp , Di-Py(+)-Me adj , Tetra-Py, TBO, CV, and MG] was not improved by the presence of the coadjuvant. For the PSs tested in this study, the ones capable to decompose the peroxyiodide into iodine (easily detectable by spectroscopy or by the visual appearance of a blue color in the presence of amylose) were the most promising ones to be used in combination with KI. Although these studies confirmed that the generation of 1O2 is an important fact in this process, the PS structure (charge number and charge position), aggregation behavior and affinity for the cell membrane are also important features to be taken in account.
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Affiliation(s)
- Cátia Vieira
- Department of Biology and CESAM, University of Aveiro, Aveiro, Portugal
| | | | | | - Nuno M. M. Moura
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro, Portugal
| | | | | | - Adelaide Almeida
- Department of Biology and CESAM, University of Aveiro, Aveiro, Portugal
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24
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Gamelas SRD, Gomes ATPC, Moura NMM, Faustino MAF, Cavaleiro JAS, Lodeiro C, Veríssimo MIS, Fernandes T, Daniel-da-Silva AL, Gomes MTSR, Neves MGPMS. N-Confused Porphyrin Immobilized on Solid Supports: Synthesis and Metal Ions Sensing Efficacy. Molecules 2018; 23:E867. [PMID: 29642601 PMCID: PMC6017291 DOI: 10.3390/molecules23040867] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/04/2018] [Accepted: 04/06/2018] [Indexed: 01/15/2023] Open
Abstract
In this work, the N-confused porphyrin 5,10,15,20-tetraphenyl-2-aza-21-carbaporphyrin (NCTPP) was immobilized on neutral or cationic supports based on silica and on Merrifield resin. The new materials were characterized by appropriate techniques (UV-Vis spectroscopy, SEM, and zeta potential analysis). Piezoelectric quartz crystal gold electrodes were coated with the different hybrids and their ability to interact with heavy metals was evaluated. The preliminary results obtained showed that the new materials can be explored for metal cations detection and the modification of the material surface is a key factor in tuning the metal selectivity.
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Affiliation(s)
- Sara R D Gamelas
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ana T P C Gomes
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Nuno M M Moura
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
- BIOSCOPE Group, LAQV@REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon, 2829-516 Caparica, Portugal.
| | - Maria A F Faustino
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - José A S Cavaleiro
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Carlos Lodeiro
- BIOSCOPE Group, LAQV@REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon, 2829-516 Caparica, Portugal.
- ProteoMass Scientific Society, Madan Park, Rua dos Inventores, 2825-182 Caparica, Portugal.
| | - Marta I S Veríssimo
- Department of Chemistry and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tiago Fernandes
- Department of Chemistry and CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ana L Daniel-da-Silva
- Department of Chemistry and CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Teresa S R Gomes
- Department of Chemistry and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Maria G P M S Neves
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
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Campos VR, Gomes ATPC, Cunha AC, Neves MDGPMS, Ferreira VF, Cavaleiro JAS. Efficient access to β -vinylporphyrin derivatives via palladium cross coupling of β-bromoporphyrins with N-tosylhydrazones. Beilstein J Org Chem 2017; 13:195-202. [PMID: 28228860 PMCID: PMC5301804 DOI: 10.3762/bjoc.13.22] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/11/2017] [Indexed: 12/30/2022] Open
Abstract
This work describes a new approach to obtain new β-vinylporphyrin derivatives through palladium-catalyzed cross-coupling reaction of 2-bromo-5,10,15,20-tetraphenylporphyrinatozinc(II) with N-tosylhydrazones. This is the first report of the use of such synthetic methodology in porphyrin chemistry allowing the synthesis of new derivatives, containing β-arylvinyl substituents.
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Affiliation(s)
- Vinicius R Campos
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, 24020-150 Niterói, RJ, Brazil; QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T P C Gomes
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Anna C Cunha
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, 24020-150 Niterói, RJ, Brazil
| | | | - Vitor F Ferreira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, 24020-150 Niterói, RJ, Brazil
| | - José A S Cavaleiro
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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26
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Cardoso MFDC, Gomes ATPC, Moreira CDS, Simões MMQ, Neves MGPMS, da Rocha DR, da Silva FDC, Moreirinha C, Almeida A, Ferreira VF, Cavaleiro JAS. Efficient Catalytic Oxidation of 3-Arylthio- and 3-Cyclohexylthio-lapachone Derivatives to New Sulfonyl Derivatives and Evaluation of Their Antibacterial Activities. Molecules 2017; 22:molecules22020302. [PMID: 28212345 PMCID: PMC6155948 DOI: 10.3390/molecules22020302] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/06/2017] [Accepted: 02/13/2017] [Indexed: 01/30/2023] Open
Abstract
New sulfonyl-lapachones were efficiently obtained through the catalytic oxidation of arylthio- and cyclohexylthio-lapachone derivatives with hydrogen peroxide in the presence of a Mn(III) porphyrin complex. The antibacterial activities of the non-oxidized and oxidized lapachone derivatives against the Gram-negative bacteria Escherichia coli and the Gram-positive bacteria Staphylococcus aureus were evaluated after their incorporation into polyvinylpyrrolidone (PVP) micelles. The obtained results show that the PVP-formulations of the lapachones 4b–g and of the sulfonyl-lapachones 7e and 7g reduced the growth of S. aureus.
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Affiliation(s)
- Mariana F do C Cardoso
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal.
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Niterói 24020-150, RJ, Brazil.
| | - Ana T P C Gomes
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal.
| | - Caroline Dos S Moreira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Niterói 24020-150, RJ, Brazil.
| | - Mário M Q Simões
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal.
| | - Maria G P M S Neves
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal.
| | - David R da Rocha
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Niterói 24020-150, RJ, Brazil.
| | - Fernando de C da Silva
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Niterói 24020-150, RJ, Brazil.
| | - Catarina Moreirinha
- Department of Biology and CESAM, University of Aveiro, Aveiro 3810-193, Portugal.
| | - Adelaide Almeida
- Department of Biology and CESAM, University of Aveiro, Aveiro 3810-193, Portugal.
| | - Vitor F Ferreira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Niterói 24020-150, RJ, Brazil.
| | - José A S Cavaleiro
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro 3810-193, Portugal.
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27
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Forezi LDSM, Gomes ATPC, Neves MGPMS, Ferreira VF, Boechat FDCS, de Souza MCBV, Cavaleiro JAS. Synthesis of β-Substitutedmeso-Tetraaryl-21,23-dithiaporphyrins by Heck Reaction. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500812] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Batalha PN, Gomes ATPC, Forezi LSM, Costa L, de Souza MCBV, Boechat FDCS, Ferreira VF, Almeida A, Faustino MAF, Neves MGPMS, Cavaleiro JAS. Synthesis of new porphyrin/4-quinolone conjugates and evaluation of their efficiency in the photoinactivation of Staphylococcus aureus. RSC Adv 2015. [DOI: 10.1039/c5ra11070j] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The synthesis of new porphyrin/4-quinolone conjugates and their evaluation as potential photosensitizers in the photoinactivation of Staphylococcus aureus is described.
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Affiliation(s)
- Pedro N. Batalha
- Department of Chemistry and QOPNA
- University of Aveiro
- 3810-193 Aveiro
- Portugal
- Programa de Pós-Graduação em Química
| | - Ana T. P. C. Gomes
- Department of Chemistry and QOPNA
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Luana S. M. Forezi
- Programa de Pós-Graduação em Química
- Instituto de Química
- Universidade Federal Fluminense
- Rio de Janeiro
- Brazil
| | - Liliana Costa
- Department of Biology and CESAM
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | | | - Fernanda da C. S. Boechat
- Programa de Pós-Graduação em Química
- Instituto de Química
- Universidade Federal Fluminense
- Rio de Janeiro
- Brazil
| | - Vitor F. Ferreira
- Programa de Pós-Graduação em Química
- Instituto de Química
- Universidade Federal Fluminense
- Rio de Janeiro
- Brazil
| | - Adelaide Almeida
- Department of Biology and CESAM
- University of Aveiro
- 3810-193 Aveiro
- Portugal
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Bastos MM, Gomes ATPC, Neves MGPMS, Silva AMS, Santos-Filho OA, Boechat N, Cavaleiro JAS. Synthesis of β-Substituted Porphyrin Derivatives Containing Heterocyclic Moieties as Potential Photosensitizers Against Cutaneous Leishmaniasis. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201501] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gomes ATPC, Leão RAC, da Silva FC, Neves MGPMS, Faustino MAF, Tomé AC, Silva AMS, Pinheiro S, de Souza MCBV, Ferreira VF, Cavaleiro JAS. Synthesis of new glycoporphyrin derivatives through carbohydrate-substituted α-diazoacetates. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424609000279] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The reaction of carbohydrate-substituted α-diazoacetates with meso-tetrakis(pentafluorophenyl)porphyrinatozin(II) allows the synthesis of new glyco-hydroporphyrin derivatives.
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Affiliation(s)
- Ana T. P. C. Gomes
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Raquel A. C. Leão
- Departamento de Química Orgânica, Universidade Federal Fluminese, 24020-150 Niterói, RJ, Brazil
| | - Fernando C. da Silva
- Departamento de Química Orgânica, Universidade Federal Fluminese, 24020-150 Niterói, RJ, Brazil
| | | | - Maria A. F. Faustino
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Augusto C. Tomé
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Artur M. S. Silva
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sérgio Pinheiro
- Departamento de Química Orgânica, Universidade Federal Fluminese, 24020-150 Niterói, RJ, Brazil
| | - Maria C. B. V. de Souza
- Departamento de Química Orgânica, Universidade Federal Fluminese, 24020-150 Niterói, RJ, Brazil
| | - Vítor F. Ferreira
- Departamento de Química Orgânica, Universidade Federal Fluminese, 24020-150 Niterói, RJ, Brazil
| | - José A. S. Cavaleiro
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
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Bastos MM, Boechat N, Gomes ATPC, Neves MGPMS, Cavaleiro JAS. The Use of Porphyrins in Photodynamic Therapy of Cutaneous Leishmaniasis. ACTA ACUST UNITED AC 2012. [DOI: 10.5935/1984-6835.20120021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Carvalho CMB, Gomes ATPC, Fernandes SCD, Prata ACB, Almeida MA, Cunha MA, Tomé JPC, Faustino MAF, Neves MGPMS, Tomé AC, Cavaleiro JAS, Lin Z, Rainho JP, Rocha J. Photoinactivation of bacteria in wastewater by porphyrins: bacterial beta-galactosidase activity and leucine-uptake as methods to monitor the process. J Photochem Photobiol B 2007; 88:112-8. [PMID: 17616398 DOI: 10.1016/j.jphotobiol.2007.04.015] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Revised: 04/24/2007] [Accepted: 04/30/2007] [Indexed: 10/23/2022]
Abstract
The increasing interest in photodynamic antimicrobial chemotherapy as a promising technology for wastewater treatment demands more efficient photosensitizers and faster methods for the monitorization of the photoinactivation process. Two sets of neutral and cationic porphyrins were used as photosensitizers for the photoinactivation of sewage bacteria. Two of the cationic porphyrins revealed to be highly active, even against Gram-negative bacteria, inactivating ca. 94-99.8% of these at 5 microM and after 270 min of irradiation with white light (9 mW cm(-2)). In addition, two expeditious methods for the evaluation of the bacteria photoinactivation were developed. These methods are based on beta-galactosidase activity and on leucine incorporation and give an excellent relation with faecal coliform counts. The evaluation of these two descriptors of bacterial activity, directly related with bacterial abundance, is an easy and fast way to monitor the micro-organisms during the photoinactivation process.
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Affiliation(s)
- Carla M B Carvalho
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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