Muhammad Saleh Faryabi, Ali Akbari, Mahboobeh Zahedifar
{"title":"Copper-modified titanium dioxide nanoparticles as a highly efficient photocatalyst for the synthesis of furan-3-carboxylate derivatives.","authors":"Muhammad Saleh Faryabi, Ali Akbari, Mahboobeh Zahedifar","doi":"10.1111/php.14111","DOIUrl":"https://doi.org/10.1111/php.14111","url":null,"abstract":"<p><p>A heterogeneous photocatalyst based on copper-modified titanium dioxide nanoparticles has been prepared and characterized. Copper-modified nano-titanium dioxide (Nano-TiO<sub>2</sub>@CuO) is an efficient photocatalyst for the synthesis of furan-3-carboxylate derivatives through a radical addition-polar cyclization of β-ketoester derivatives and allyl chloride under the irradiation of blue light. Copper-modified titanium dioxide nanoparticles 20% which show titanium dioxide-copper cooperativity show a significantly better performance with respect to turnover numbers (number of product molecules per catalyst molecule = efficiency). The Nano-TiO<sub>2</sub>@CuO catalyst is stable and can be reused multiple times without a significant change in activity. The particle sizes varied in the range of 25-80 nm. High yields of product, environmentally friendly, cost-effective method, and easy work-up are advantages of the present method. All synthesized compounds were characterized by NMR and FT-IR spectroscopy.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144143374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuri Kwon, Rubina Shafi, Allen Oak, Mohammad Athar, Andrzej Slominski, Craig A Elmets
{"title":"Grape constituents for protection against photodamage to skin.","authors":"Yuri Kwon, Rubina Shafi, Allen Oak, Mohammad Athar, Andrzej Slominski, Craig A Elmets","doi":"10.1111/php.14110","DOIUrl":"https://doi.org/10.1111/php.14110","url":null,"abstract":"<p><p>Cutaneous overexposure to ultraviolet radiation has a variety of deleterious effects. The extent to which dietary factors are effective at moderating UV damage is a significant issue. Grapes contain phytochemicals that protect against excessive UV damage. Components of grapes, in particular resveratrol, proanthocyanidins, and cyanidin-3-glucoside, are receiving considerable attention for their photoprotective actions because of their lack of toxicity, abundance, and low cost. Resveratrol and proanthocyanidins are potent antioxidants that interfere with signal transduction and immunosuppressive pathways activated by UV radiation, which are responsible for its harmful effects. Studies in humans provide a rationale for their further development as a novel method of photoprotection.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144120575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gabriela Gomes Guimarães, Jennifer Soares, Anna Luiza Resende, Isabella Gonçalves, Kate Blanco, Vanderlei Bagnato
{"title":"Overcoming resistance of Candida albicans using photodynamic inactivation.","authors":"Gabriela Gomes Guimarães, Jennifer Soares, Anna Luiza Resende, Isabella Gonçalves, Kate Blanco, Vanderlei Bagnato","doi":"10.1111/php.14108","DOIUrl":"https://doi.org/10.1111/php.14108","url":null,"abstract":"<p><p>The increasing resistance to conventional antifungal agents, such as Amphotericin B (AmB), has led to a growing demand for alternative therapeutic approaches for Candida albicans, an opportunistic fungal pathogen responsible for infections in immunocompromised patients. This study aimed to evaluate the effectiveness of photodynamic inactivation (PDI) in combination with AmB for controlling C. albicans growth, particularly in its yeast and hyphal forms, and to assess the impact of multiple PDI doses. C. albicans (ATCC 90028) was cultured in yeast and hyphal suspensions that were adjusted to 10<sup>8</sup> CFU/mL and treated with AmB at varying concentrations (0.065-1.04 μg/mL), with and without PDI. PDI was performed using the photosensitizer curcumin (2.5 μM), activated by a 450 nm LED light source at a fluence of 15 J/cm<sup>2</sup>. The effect of single and repeated PDI doses was evaluated in the fungal biomolecules, which were assessed using Fourier transform infrared (FTIR) spectroscopy. Optical density (OD) measurements quantified fungal growth reduction at 540 nm. The combination of AmB and PDI significantly reduced C. albicans growth, achieving a 75% reduction in the yeast form and an 87.5% reduction in the hyphal form. Two doses of PDI further enhanced antifungal efficacy, particularly against hyphae, which exhibited higher sensitivity to treatment. These findings suggest that PDI enhances the antifungal action of AmB, particularly in more resistant C. albicans forms such as hyphae and biofilms. The observed synergistic effect supports the potential use of PDI as an effective strategy to combat antifungal resistance in clinical applications.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144079446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Giulia de Lara Quagliotto, Milena Pastor Manchope, Rebeca Hilario, Vitoria Zubeldia, Renata Anddresa Stacheslki, Alberito Rodrigo de Carvalho, Márcia Rosângela Buzanello, Gladson Ricardo Flor Bertolini
{"title":"Photobiomodulation associated with physical exercise in shoulder impingement syndrome. Systematic review with meta-analysis.","authors":"Giulia de Lara Quagliotto, Milena Pastor Manchope, Rebeca Hilario, Vitoria Zubeldia, Renata Anddresa Stacheslki, Alberito Rodrigo de Carvalho, Márcia Rosângela Buzanello, Gladson Ricardo Flor Bertolini","doi":"10.1111/php.14113","DOIUrl":"https://doi.org/10.1111/php.14113","url":null,"abstract":"<p><p>To present the use of PBM associated with physical exercise in the treatment of shoulder impingement syndrome, with its different parameters. The following databases were used: PubMed, Web of Science, Embase, Cochrane, Scopus, and Lilacs. The gray literature included Google Scholar, Open Grey, LIVIVO, and the Brazilian Library of Theses and Dissertations. Ten randomized clinical trials were included. Pain intensity was improved with PBM compared to control [MD = -0.89, 95% CI (-1.38, -0.40), I<sup>2</sup> 46%, p = 0.0004]. The 3 different times of assessment (at rest, activity, and at night) of pain intensity were not statistically significant and likewise, the combined effect size [SMD = -0.16; 95% CI (-0.43, 0.12), I<sup>2</sup> 63%, p = 0.26]. A significant improvement in ROM was seen in the PBM group compared to the control [MD = 12.24, 95% CI (7.64, 16.84), I<sup>2</sup> 85%, p < 0.00001]. The combined effect estimate showed no significant improvement in functionality in the PBM group compared to the control [MD = -1.47, 95% CI (-7.34, 4.41), I<sup>2</sup> 58%, p = 0.62]. PBM therapy combined with physical exercise is effective in reducing pain and improving the range of motion in individuals with shoulder impingement syndrome.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143988050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Caradee Y Wright, Nathan J Downs, Thandi Kapwata, David Jean du Preez, Bianca Tod
{"title":"Linking the Ultraviolet Index to the \"shadow rule\" for sun protection: A theoretical model applied with a southern hemisphere example.","authors":"Caradee Y Wright, Nathan J Downs, Thandi Kapwata, David Jean du Preez, Bianca Tod","doi":"10.1111/php.14116","DOIUrl":"https://doi.org/10.1111/php.14116","url":null,"abstract":"<p><p>Personal solar ultraviolet radiation (UVR) exposure has positive and negative impacts on human health. Excess solar UVR exposure can be avoided through safe sun practices such as using sun protection and avoiding unprotected outdoor exposure when solar UVR levels are high. The shadow rule indirectly determines the sun's altitude by observing the length of a person's shadow during the course of the day. When the shadow cast by the sun on a horizontal surface is shorter than the height of the person casting the shadow, the solar UVR intensity is high and is deemed to have more risk. The magnitude of this risk depends on factors such a skin type, sun protection used etc. The UV Index is a standardized measure to describe the intensity of solar UVR with respect to the human action spectrum for sunburn. It is frequently reported in weather forecasts aimed at the public. Here, we demonstrate the potential utility of the shadow rule and how it may be understood in relation to the UV Index in a subtropical southern hemisphere setting. Its use as a simple awareness tool for sun protection in locations where the UV Index is not made public has value in promoting sun exposure awareness and reducing personal exposure risk.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143976305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David Welch, Manuela Buonanno, Camryn Petersen, Igor Shuryak, Thomas Filler, Neysha Lobo-Ploch, David J Brenner
{"title":"Virus inactivation and skin safety studies using far-UVC LEDs.","authors":"David Welch, Manuela Buonanno, Camryn Petersen, Igor Shuryak, Thomas Filler, Neysha Lobo-Ploch, David J Brenner","doi":"10.1111/php.14115","DOIUrl":"https://doi.org/10.1111/php.14115","url":null,"abstract":"<p><p>Reducing airborne disease transmission is a public health goal. Far-UVC light, defined as 200-235 nm, is a promising technology to inactivate viruses within occupied spaces. This work examines state of the art far-UVC emitting LEDs, with a center emission wavelength of 233 nm, for virus inactivation efficacy and for DNA damage to skin models. The LEDs were used to expose an aerosolized surrogate of SARS-CoV2, the human coronavirus OC43, and survival results estimated a susceptibility constant of k<sub>233-aerosol</sub> = 4.0 ± 0.2 cm<sup>2</sup>/mJ, which corresponds to a D<sub>90</sub> of 0.58 mJ/cm<sup>2</sup>. HCoV-OC43 was also exposed after drying on a plastic or glass surface, and inactivation results estimated susceptibility values of k<sub>1_233-plastic</sub> = 6.7 ± 3.8 cm<sup>2</sup>/mJ and k<sub>1_233-glass</sub> = 7.2 ± 3.0 cm<sup>2</sup>/mJ which were not significantly different. For safety evaluation, human skin biopsies exposed to 100 mJ/cm<sup>2</sup> from the 233 nm LEDs indicated only 8% of the epidermal cells were positive for DNA damage, whereas the same dose from a 254 nm lamp showed damage in 45% of epidermal cells. A radiant exposure of 100 mJ/cm<sup>2</sup> from the 233 nm LEDs did not produce DNA double strand breaks within the skin biopsies. These tests for the safety and efficacy of a 233 nm far-UVC LED system provide support for the continued development of far-UVC LED sources.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144050055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alois W Schmalwieser, Hannah Danhel, Susanne S Schmalwieser, Sonja Reimoser, Hanna Rummel, Adrian Loy, Jakob Heydenreich, Philipp Weihs
{"title":"Erythemal UV radiation exposure during jogging.","authors":"Alois W Schmalwieser, Hannah Danhel, Susanne S Schmalwieser, Sonja Reimoser, Hanna Rummel, Adrian Loy, Jakob Heydenreich, Philipp Weihs","doi":"10.1111/php.14114","DOIUrl":"https://doi.org/10.1111/php.14114","url":null,"abstract":"<p><p>Jogging is one of the most popular recreational sport activities over four decades and is done at almost all ages to keep fitness and health. Joggers are exposed to solar UV radiation (UVR) and, due to enhanced heat production by physical activity, body coverage by clothes is reduced. This may imply a health risk due to overexposure. However, little research has been undertaken so far to estimate UVR exposure during jogging. Therefore, UVR exposure was measured at seven body sites during jogging under cloud-free conditions for solar elevations between 20° and 60°. Results show that the top of the shoulder is the most exposed body site by receiving 80% of ambient UVR on average and up to 110% under certain conditions. All other body parts receive up to 55% on average and up to 85% in special cases. This indicates further that monotonous body alignment to the sun holds a higher risk than a frequently alternating alignment. Assuming the longest recommended duration for cardiovascular beneficial jogging of 50 min, photosensitive persons need protection of the shoulders from a UV index of 2 onward on an unvaried path and from a UV index of 3 on an all-directional path. Further, results show that measurements of UVR exposure possess an uncertainty of ±15% including mounting.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144015817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to \"Methylene Blue/Carbon Dots Composite with Photothermal and Photodynamic Properties: Synthesis, Characterization, and Antibacterial Application\".","authors":"","doi":"10.1111/php.14102","DOIUrl":"10.1111/php.14102","url":null,"abstract":"","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"782-784"},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143974629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effect of photobiomodulation therapy on implant stability: A systematic review and meta-analysis.","authors":"Mahnaz Arshad, Yekta Mazidi, Nasim Chiniforush, Armin Shirvani, Seyed Hossein Bassir","doi":"10.1111/php.14033","DOIUrl":"10.1111/php.14033","url":null,"abstract":"<p><p>This study was designed to determine the effect of photobiomodulation therapy on dental implant stability. A complete systematic search was performed in PUBMED/MEDLINE, COCHRANE library databases, EMBASE, SCOPUS, and Google Scholar databases on articles published until June 2024. All the RCTs and CCTs reported the solo impact of photobiomodulation on dental implant stability in humans were included. The means and standard deviation for implant stability and sample size were extracted for the meta-analysis. The statistical analysis was conducted using Stata 17 software, and random effect models were applied to assess the source of heterogeneity. The I2 statistic was used to estimate the significance of any discrepancies in the therapy result. After a full-text inspection, 17 articles were qualified for systematic review, and 14 were included in the meta-analysis. Statically significant differences in implant stability were observed between the laser and the control groups on weeks 2 in ISQ reporting groups (p = 0.01, CI 95%) and weeks 4 and 8 in PTV reporting groups (p < 0.001, CI 95%). Despite limitations, the study suggests that PBM therapy benefits patients with dental implants at different periods, particularly during the early phases of healing.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"709-727"},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gabriel Roblin, Christelle Moyen, Pierrette Fleurat-Lessard, Fabienne Dédaldéchamp
{"title":"Rapid osmocontractile response of motor cells of Mimosa pudica pulvini induced by short light signals.","authors":"Gabriel Roblin, Christelle Moyen, Pierrette Fleurat-Lessard, Fabienne Dédaldéchamp","doi":"10.1111/php.14046","DOIUrl":"10.1111/php.14046","url":null,"abstract":"<p><p>The Mimosa pudica leaf has motor organs allowing movements driven by cell osmotic changes in the parenchyma cells in response to various stimuli. Short white light pulses induce rapid and large seismonastic-like movements (denoted \"photostimulation\") of the primary pulvini in various leaves within 120 s after the onset of light. An early event recorded is a wavelength-related modification of the plasma membrane difference: potential depolarization under white, blue, green, and red wavelengths, and hyperpolarization under far red wavelengths (and also in darkness). The photoreactivity of the pulvini is controlled by a circadian rhythm and modulated by the applied diurnal photoperiod cycle (photophase ranging from 6 to 18 h). The reactivity varied among plants and even between leaves on the same plant. The level of reactivity is related to the photon fluence rate in the range from 10 to 140 μmol m<sup>-2</sup> s<sup>-1</sup> under white light and to the experimental temperature in the range 15°C-35°C. An \"accommodation\" to light supply is evidenced by a modulation of the reactivity in relation to the schedule of light application under low fluence rates and the introduction of short darkness intervals during the first 30-s light pulse. The blue light-induced photostimulation is under phytochrome control.</p>","PeriodicalId":20133,"journal":{"name":"Photochemistry and Photobiology","volume":" ","pages":"728-745"},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12080878/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142751507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}