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  1. Article ; Online: Degradation of Pesticides Using Semiconducting and Tetrapyrrolic Macrocyclic Photocatalysts-A Concise Review.

    Piccirillo, Giusi / De Sousa, Rodrigo B / Dias, Lucas D / Calvete, Mário J F

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 22

    Abstract: Exposure to pesticides is inevitable in modern times, and their environmental presence is strongly associated to the development of various malignancies. This challenge has prompted an increased interest in finding more sustainable ways of degrading ... ...

    Abstract Exposure to pesticides is inevitable in modern times, and their environmental presence is strongly associated to the development of various malignancies. This challenge has prompted an increased interest in finding more sustainable ways of degrading pesticides. Advanced oxidation processes in particular appear as highly advantageous, due to their ability of selectively removing chemical entities form wastewaters. This review provides a concise introduction to the mechanisms of photochemical advanced oxidation processes with an objective perspective, followed by a succinct literature review on the photodegradation of pesticides utilizing metal oxide-based semiconductors as photosensitizing catalysts. The selection of reports discussed here is based on relevance and impact, which are recognized globally, ensuring rigorous scrutiny. Finally, this literature review explores the use of tetrapyrrolic macrocyclic photosensitizers in pesticide photodegradation, analyzing their benefits and limitations and providing insights into future directions.
    Language English
    Publishing date 2023-11-20
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28227677
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  2. Article ; Online: Photodisinfection of material surfaces and bacterial skin infections by a detergent loaded with curcumin.

    Dias, Lucas D / Alves, Fernanda / Buzza, Hilde H / Bagnato, Vanderlei S

    Photodiagnosis and photodynamic therapy

    2022  Volume 39, Page(s) 103021

    Abstract: The development of technologies and therapeutic strategies is needed to combat skin infections and pathogenic microorganisms present on material surfaces that are still responsible for serious public health problems. In this study, detergents loaded with ...

    Abstract The development of technologies and therapeutic strategies is needed to combat skin infections and pathogenic microorganisms present on material surfaces that are still responsible for serious public health problems. In this study, detergents loaded with curcumin were prepared by a simple approach and characterized by UV-vis spectroscopy and fluorescence spectroscopy. Their antibacterial photodynamic effects were evaluated against Staphylococcus aureus in planktonic medium and in vivo (skin infection model), and showed a reduction up to 8 logs and 2 logs, respectively. Additionally, the curcumin-detergents were applied on photodisinfection of material surfaces such as wood, rubber, and stainless steel resulting in an efficient photoinactivation up to 3 logs. These developed detergents loaded with curcumin can improve the decontamination of material surfaces and skin infections (in vivo) when illuminated.
    MeSH term(s) Anti-Bacterial Agents/chemistry ; Anti-Bacterial Agents/pharmacology ; Curcumin/chemistry ; Curcumin/pharmacology ; Detergents ; Humans ; Photochemotherapy/methods ; Skin Diseases, Bacterial ; Staphylococcus aureus
    Chemical Substances Anti-Bacterial Agents ; Detergents ; Curcumin (IT942ZTH98)
    Language English
    Publishing date 2022-07-16
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2149918-4
    ISSN 1873-1597 ; 1572-1000
    ISSN (online) 1873-1597
    ISSN 1572-1000
    DOI 10.1016/j.pdpdt.2022.103021
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  3. Article ; Online: An update on clinical photodynamic therapy for fighting respiratory tract infections

    Dias, Lucas D / Bagnato, Vanderlei S

    Laser Physics Letters

    a promising tool against COVID-19 and its co-infections

    2020  Volume 17, Issue 8, Page(s) 83001

    Keywords Physics and Astronomy (miscellaneous) ; Instrumentation ; covid19
    Publisher IOP Publishing
    Publishing country uk
    Document type Article ; Online
    ISSN 1612-2011
    DOI 10.1088/1612-202x/ab95a9
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Natural versus synthetic curcuminoids as photosensitizers: Photobleaching and antimicrobial photodynamic therapy evaluation.

    Melo, Nicolas Junhiti de / Tovar, Johan S D / Dovigo, Lívia Nordi / Dias, Lucas D / Bagnato, Vanderlei Salvador / Inada, Natalia Mayumi

    Photodiagnosis and photodynamic therapy

    2023  Volume 42, Page(s) 103495

    Abstract: Antimicrobial photodynamic therapy (aPDT) has been studied as an alternative to combat bacterial resistance to the commonly used antibiotics. aPDT requires the use of a photosensitizer and curcumin is one of the more promising, though the usage of ... ...

    Abstract Antimicrobial photodynamic therapy (aPDT) has been studied as an alternative to combat bacterial resistance to the commonly used antibiotics. aPDT requires the use of a photosensitizer and curcumin is one of the more promising, though the usage of natural curcumin can be inconsistent in certain biomedical uses due to differences in soil condition and turmeric age, besides a large quantity of the plant is necessary to obtain useful amounts of the actual molecule. As such, a synthetic analogue is preferred as it is pure, and its components are better characterized. The present work studied photophysical differences in both natural and synthetic curcumin using photobleaching experiments and searched for whether differences existed in aPDT studies against Staphylococcus aureus. The results showed a faster O
    MeSH term(s) Humans ; Photochemotherapy/methods ; Photosensitizing Agents/pharmacology ; Staphylococcus aureus ; Diarylheptanoids ; Curcumin/pharmacology ; Photobleaching ; Reproducibility of Results ; Anti-Infective Agents ; Anti-Bacterial Agents ; Staphylococcal Infections
    Chemical Substances Photosensitizing Agents ; Diarylheptanoids ; Curcumin (IT942ZTH98) ; Anti-Infective Agents ; Anti-Bacterial Agents
    Language English
    Publishing date 2023-03-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2149918-4
    ISSN 1873-1597 ; 1572-1000
    ISSN (online) 1873-1597
    ISSN 1572-1000
    DOI 10.1016/j.pdpdt.2023.103495
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  5. Article ; Online: COVID-19: Beyond the virus. The use of photodynamic therapy for the treatment of infections in the respiratory tract.

    Dias, Lucas D / Blanco, Kate C / Bagnato, Vanderlei S

    Photodiagnosis and photodynamic therapy

    2020  Volume 31, Page(s) 101804

    Abstract: The World today is facing a great effort for the control of infections.•Nowadays COVID-19 is the large global outbreak and is the major public health issue.•This letter to Editor highlighted the well-established photodynamic therapy protocol as a tool ... ...

    Abstract •The World today is facing a great effort for the control of infections.•Nowadays COVID-19 is the large global outbreak and is the major public health issue.•This letter to Editor highlighted the well-established photodynamic therapy protocol as a tool to decrease the viral and bacterial load in the respiratory tract.
    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections/drug therapy ; Coronavirus Infections/epidemiology ; Humans ; Pandemics ; Photochemotherapy/methods ; Photosensitizing Agents ; Pneumonia, Viral/drug therapy ; Pneumonia, Viral/epidemiology ; Respiratory Tract Infections/drug therapy ; SARS-CoV-2
    Chemical Substances Photosensitizing Agents
    Keywords covid19
    Language English
    Publishing date 2020-05-08
    Publishing country Netherlands
    Document type Letter
    ZDB-ID 2149918-4
    ISSN 1873-1597 ; 1572-1000
    ISSN (online) 1873-1597
    ISSN 1572-1000
    DOI 10.1016/j.pdpdt.2020.101804
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  6. Article ; Online: Learning from Nature: Bioinspired Chlorin-Based Photosensitizers Immobilized on Carbon Materials for Combined Photodynamic and Photothermal Therapy.

    Dias, Lucas D / Mfouo-Tynga, Ivan S

    Biomimetics (Basel, Switzerland)

    2020  Volume 5, Issue 4

    Abstract: Chlorophylls, which are chlorin-type photosensitizers, are known as the key building blocks of nature and are fundamental for solar energy metabolism during the photosynthesis process. In this regard, the utilization of bioinspired chlorin analogs as ... ...

    Abstract Chlorophylls, which are chlorin-type photosensitizers, are known as the key building blocks of nature and are fundamental for solar energy metabolism during the photosynthesis process. In this regard, the utilization of bioinspired chlorin analogs as photosensitizers for photodynamic therapy constitutes an evolutionary topic of research. Moreover, carbon nanomaterials have been widely applied in photodynamic therapy protocols due to their optical characteristics, good biocompatibility, and tunable systematic toxicity. Herein, we review the literature related to the applications of chlorin-based photosensitizers that were functionalized onto carbon nanomaterials for photodynamic and photothermal therapies against cancer. Rather than a comprehensive review, we intended to highlight the most important and illustrative examples over the last 10 years.
    Language English
    Publishing date 2020-10-14
    Publishing country Switzerland
    Document type Journal Article ; Review
    ISSN 2313-7673
    ISSN (online) 2313-7673
    DOI 10.3390/biomimetics5040053
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  7. Article: Self-Disinfecting Urethral Catheter to Overcome Urinary Infections: From Antimicrobial Photodynamic Action to Antibacterial Biochemical Entities.

    Dias, Lucas D / Duarte, Luana S / Naves, Plínio L F / Napolitano, Hamilton B / Bagnato, Vanderlei S

    Microorganisms

    2022  Volume 10, Issue 12

    Abstract: Medical-device-related infections are considered a worldwide public health problem. In particular, urinary catheters are responsible for 75% of cases of hospital urinary infections (a mortality rate of 2.3%) and present a high cost for public and private ...

    Abstract Medical-device-related infections are considered a worldwide public health problem. In particular, urinary catheters are responsible for 75% of cases of hospital urinary infections (a mortality rate of 2.3%) and present a high cost for public and private health systems. Some actions have been performed and described aiming to avoid it, including clinical guidelines for catheterization procedure, antibiotic prophylaxis, and use of antimicrobial coated-urinary catheters. In this review paper, we present and discuss the functionalization of urinary catheters surfaces with antimicrobial entities (e.g., photosensitizers, antibiotics, polymers, silver salts, oxides, bacteriophage, and enzymes) highlighting the immobilization of photosensitizing molecules for antimicrobial photodynamic applications. Moreover, the characterization techniques and (photo)antimicrobial effects of the coated-urinary catheters are described and discussed. We highlight the most significant examples in the last decade (2011-2021) concerning the antimicrobial coated-urinary catheter and their potential use, limitations, and future perspectives.
    Language English
    Publishing date 2022-12-15
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms10122484
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  8. Article ; Online: An IoT-Based System for Monitoring the Health of Guyed Towers in Overhead Power Lines.

    Ferreira Dias, Claudio / de Oliveira, Juliane Regina / de Mendonça, Lucas D / de Almeida, Larissa M / de Lima, Eduardo R / Wanner, Lucas

    Sensors (Basel, Switzerland)

    2021  Volume 21, Issue 18

    Abstract: The collapse of overhead power line guyed towers is one of the leading causes of power grid failures, subjecting electricity companies to pay considerable, high-value fines. In this way, the current work proposes a novel and complete framework for the ... ...

    Abstract The collapse of overhead power line guyed towers is one of the leading causes of power grid failures, subjecting electricity companies to pay considerable, high-value fines. In this way, the current work proposes a novel and complete framework for the remote monitoring of mechanical stresses in guyed towers. The framework method comprises a mesh network for data forwarding and neural networks to improve the performance of Low-Power and Lossy Networks. The method also considers the use of multiple sensors in the sensor fusion technique. As a result, the risk of collapse of guyed cable towers reduces, due to the remote monitoring and preventive actions promoted by the framework. Furthermore, the proposed method uses multiple input variable fusions, such as accelerometers and tension sensors, to estimate the tower's displacement. These estimations help address the structural health of the tower against failures (i.e., loosening of the stay cables, displacement, and vibrations) that can cause catastrophic events, such as tower collapse or even cable rupture.
    MeSH term(s) Neural Networks, Computer
    Language English
    Publishing date 2021-09-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s21186173
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  9. Article ; Online: Molecular basis of two pyrimidine-sulfonylurea herbicides: from supramolecular arrangement to acetolactate synthase inhibition.

    Aguiar, Antônio S N / Costa, Rogério F / Borges, Leonardo L / Dias, Lucas D / Camargo, Ademir J / Napolitano, Hamilton B

    Journal of molecular modeling

    2023  Volume 29, Issue 8, Page(s) 241

    Abstract: ... set 6-311++G(d,p). The atomic coordinates were obtained directly from the crystalline structures, and ...

    Abstract Context: The design and synthesis of safe and highly active sulfonylurea herbicides is still a challenge. Therefore, following some principles of structure-activity relationship (SAR) of sulfonylurea herbicides, this work focuses on evaluating two sulfonylurea derivatives bearing electron-withdrawing substituents, namely, -(CO)OCH
    Methods: All theoretical calculations were conducted using the highly parameterized empirical exchange-correlation functional M06-2X accompanied by the diffuse and polarized basis set 6-311++G(d,p). The atomic coordinates were obtained directly from the crystalline structures, and from the energies of the frontier molecular orbitals (HOMO and LUMO), chemical descriptors were obtained that indicated the influence of the functional groups in the sulfonylureas on the reactivity of the molecules. The intermolecular interactions in the crystals were analyzed using the Hirshfeld, QTAIM, and NBO surfaces. Toxicophoric modeling was performed by the PharmaGist webserver and molecular docking calculations were performed by the GOLD 2022.1.0 software package so that the ligand was fitted to the binding site in a 10 Å sphere. For this, genetic algorithm parameters were used using the ChemPLP scoring function for docking and ASP for redocking.
    MeSH term(s) Molecular Docking Simulation ; Models, Molecular ; Acetolactate Synthase/chemistry ; Acetolactate Synthase/metabolism ; Herbicides/chemistry ; Herbicides/pharmacology ; Sulfonylurea Compounds/chemistry ; Sulfonylurea Compounds/pharmacology ; Pyrimidines
    Chemical Substances Acetolactate Synthase (EC 2.2.1.6) ; Herbicides ; Sulfonylurea Compounds ; Pyrimidines
    Language English
    Publishing date 2023-07-12
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1284729-X
    ISSN 0948-5023 ; 1610-2940
    ISSN (online) 0948-5023
    ISSN 1610-2940
    DOI 10.1007/s00894-023-05629-x
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  10. Article: An update on clinical photodynamic therapy for fighting respiratory tract infections: A promising tool against COVID-19 and its co-infections

    Dias, Lucas D. / Bagnato, Vanderlei S.

    Laser Phys. Lett.

    Abstract: Recently coronavirus infection 2019 (COVID-19) was declared as a Public Health Emergency by the World Health Organization. Extensive measures to reduce person-to-person transmission of COVID-19 and scientific research have been developed aiming to combat ...

    Abstract Recently coronavirus infection 2019 (COVID-19) was declared as a Public Health Emergency by the World Health Organization. Extensive measures to reduce person-to-person transmission of COVID-19 and scientific research have been developed aiming to combat it. The idealization of vaccines will be of great help, but they will have to be constantly redone due to the high frequency of mutation of the virus. Also, it is necessary to develop techniques that allow to combat viral, bacterial and fungi load. In this sense, photodynamic therapy can be an alternative and efficient tool against viruses, bacteria, and fungi in the respiratory tract. The photodynamic therapy protocol is characterized by activation of a photosensitizer using an appropriate light source that in the presence of molecular oxygen is able to damage microorganisms. Herein, we review the past 25 years (1995-2019) concerning the use of photodynamic therapy in clinical trial against respiratory tract infections. We did not intend to create a comprehensive review; instead we highlight some the most important aspects for this infection to connect with the possibility of inactivation of the SARS-CoV-2 and its co-infections by photo reaction. We emphasize the use of photodynamic therapy as a potential clinical tool to decrease the microbial load in the respiratory tract, showing its main applications, advantages, and limitations.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #680461
    Database COVID19

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