Photochemical & Photobiological Sciences最新文献_第7页

Double difunctionalization of vinyl ether tethered nucleophile with electron-deficient alkene in two-molecule photoredox system. 双分子光氧化系统中乙烯基醚系亲核与缺电子烯的双重双官能化。

IF 2.7 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-07-01 Epub Date: 2024-05-04 DOI: 10.1007/s43630-024-00588-5

Takumi Ikeda, Yosuke Tanaka, Ryoga Hashimoto, Toshiki Furutani, Mugen Yamawaki, Hirotsugu Suzuki, Yasuharu Yoshimi

引用次数: 0

Low-level LASER therapy accelerates fungal lesions cicatrization by increasing the production of Th1 and Th2 cytokines. 低强度激光疗法通过增加 Th1 和 Th2 细胞因子的产生，加速真菌病变的糜烂。

IF 2.7 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-07-01 Epub Date: 2024-05-28 DOI: 10.1007/s43630-024-00595-6

Julianne Caravita Grisolia, Lauana Aparecida Santos, Nayara Andrade Dias, Luiz Cosme Cotta Malaquias, Eva Burger

{"title":"Low-level LASER therapy accelerates fungal lesions cicatrization by increasing the production of Th1 and Th2 cytokines.","authors":"Julianne Caravita Grisolia, Lauana Aparecida Santos, Nayara Andrade Dias, Luiz Cosme Cotta Malaquias, Eva Burger","doi":"10.1007/s43630-024-00595-6","DOIUrl":"10.1007/s43630-024-00595-6","url":null,"abstract":"Paracoccidioidomycosis (PCM) is a systemic mycosis with serious clinical consequences in which the use of antifungal drugs requires long-term treatment. Therefore, we studied the effect of low-level LASER therapy (LLLT) to evaluate its prospects as a complementary treatment for PCM and improve the clinical response to the disease.Objectives: Our study focused on the resolution of lesions caused by fungal infection using a subcutaneous air pouch model of infection.Methods: We evaluated cell profile and cytokines, fungi viability, and the presence of fibroblasts and fibrocytes at the site of infection. Inoculation of P. brasiliensis (Pb) was performed using a subcutaneous air pouch model and the LLLT irradiation was performed on alternate days on the rear paws of mice for 10 days, after which the cells from the air pouch were collected and analyzed.Results: In animals irradiated with LLLT, the influx of cells to the air pouch was reduced, but they were more activated and produced pro-inflammatory (IL-12, IL-17 and TNF-α) and neutrophil (PMN) activating cytokines (IL-8, GM-CSF and γ-IFN). A better resolution of the infection, evidenced by the reduction in the number of viable fungi with preserved morphology in the air pouch, and an increase in the number of fibrocytes, indicating a healing profile were also observed.Conclusion: LLLT decreased the influx of PMN, but those presents were highly activated, with increased fungicidal activity. LLLT irradiation also resulted in earlier cicatrization at the site of infection, leading to a better outcome of the infection. These data are favorable to the use of LLLT as a complementary therapy in PCM.","PeriodicalId":98,"journal":{"name":"Photochemical & Photobiological Sciences","volume":" ","pages":"1295-1307"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Glowing wonders: exploring the diversity and ecological significance of bioluminescent organisms in Brazil. 发光的奇迹：探索巴西生物发光生物的多样性和生态意义。

IF 2.7 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-07-01 Epub Date: 2024-05-11 DOI: 10.1007/s43630-024-00590-x

Danilo T Amaral, Rachel A Kaplan, Thaís Kaori Enoki Takishita, Daniel R de Souza, Anderson G Oliveira, Simone Policena Rosa

{"title":"Glowing wonders: exploring the diversity and ecological significance of bioluminescent organisms in Brazil.","authors":"Danilo T Amaral, Rachel A Kaplan, Thaís Kaori Enoki Takishita, Daniel R de Souza, Anderson G Oliveira, Simone Policena Rosa","doi":"10.1007/s43630-024-00590-x","DOIUrl":"10.1007/s43630-024-00590-x","url":null,"abstract":"Bioluminescence, the emission of light by living organisms, is a captivating and widespread phenomenon with diverse ecological functions. This comprehensive review explores the biodiversity, mechanisms, ecological roles, and conservation challenges of bioluminescent organisms in Brazil, a country known for its vast and diverse ecosystems. From the enchanting glow of fireflies and glow-in-the-dark mushrooms to the mesmerizing displays of marine dinoflagellates and cnidarians, Brazil showcases a remarkable array of bioluminescent species. Understanding the biochemical mechanisms and enzymes involved in bioluminescence enhances our knowledge of their evolutionary adaptations and ecological functions. However, habitat loss, climate change, and photopollution pose significant threats to these bioluminescent organisms. Conservation measures, interdisciplinary collaborations, and responsible lighting practices are crucial for their survival. Future research should focus on identifying endemic species, studying environmental factors influencing bioluminescence, and developing effective conservation strategies. Through interdisciplinary collaborations, advanced technologies, and increased funding, Brazil can unravel the mysteries of its bioluminescent biodiversity, drive scientific advancements, and ensure the long-term preservation of these captivating organisms.","PeriodicalId":98,"journal":{"name":"Photochemical & Photobiological Sciences","volume":" ","pages":"1373-1392"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140908276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photodegradation of cannabidiol (CBD) and Δ⁹-THC in cannabis plant material. 大麻植物材料中大麻二酚（CBD）和 Δ9-THC 的光降解。

IF 2.7 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-07-01 Epub Date: 2024-05-13 DOI: 10.1007/s43630-024-00589-4

Arianna Bini, Sofia Salerno, Stefano Protti, Federica Pollastro, Antonella Profumo, Luca Morini, Daniele Merli

引用次数: 0

Effects of temperature up-shift and UV-A radiation on fatty acids content and expression of desaturase genes in cyanobacteria Microcystis aeruginosa: stress tolerance and acclimation responses. 温度升高和紫外线-A 辐射对蓝藻微囊藻脂肪酸含量和去饱和酶基因表达的影响：胁迫耐受性和适应性反应。

IF 3.1 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-06-01 Epub Date: 2024-05-08 DOI: 10.1007/s43630-024-00584-9

Florencia de la Rosa, Magdalena Pezzoni, Marleen De Troch, Cristina S Costa, Marcelo Hernando

{"title":"Effects of temperature up-shift and UV-A radiation on fatty acids content and expression of desaturase genes in cyanobacteria Microcystis aeruginosa: stress tolerance and acclimation responses.","authors":"Florencia de la Rosa, Magdalena Pezzoni, Marleen De Troch, Cristina S Costa, Marcelo Hernando","doi":"10.1007/s43630-024-00584-9","DOIUrl":"10.1007/s43630-024-00584-9","url":null,"abstract":"Temperature up-shift and UV-A radiation effects on growth, lipid damage, fatty acid (FA) composition and expression of desaturase genes desA and desB were investigated in the cyanobacteria Microcystis aeruginosa. Although UV-A damaging effect has been well documented, reports on the interactive effects of UV radiation exposure and warming on cyanobacteria are scarce. Temperature and UV-A doses were selected based on the physiological responses previously obtained by studies with the same M. aeruginosa strain used in this study. Cells pre-grown at 26 °C were incubated at the same temperature or 29 °C and exposed to UV-A + PAR and only PAR for 9 days. Growth rate was significantly affected by UV-A radiation independently of the temperature throughout the experiment. High temperature produced lipid damage significantly higher throughout the experiment, decreasing at day 9 as compared to 26 °C. In addition, the cells grown at 29 °C under UV-A displayed a decrease in polyunsaturated FA (PUFA) levels, with ω3 PUFA being mostly affected at the end of exposure. Previously, we reported that UV-A-induced lipid damage affects differentially ω3 and ω6 PUFAs. We report that UV-A radiation leads to an upregulation of desA, possibly due to lipid damage. In addition, the temperature up-shift upregulates desA and desB regardless of the radiation. The lack of lipid damage for UV-A on ω3 could explain the lack of transcription induction of desB. The significant ω6 decrease at 26 °C in cells exposed to UV-A could be due to the lack of upregulation of desA.","PeriodicalId":98,"journal":{"name":"Photochemical & Photobiological Sciences","volume":" ","pages":"1167-1178"},"PeriodicalIF":3.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140875276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of quantification methods to determine photodynamic action on mono- and dual-species bacterial biofilms. 评估确定光动力对单种和双种细菌生物膜作用的定量方法。

IF 3.1 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-06-01 Epub Date: 2024-05-04 DOI: 10.1007/s43630-024-00586-7

Rocío B Acosta, Edgardo N Durantini, Mariana B Spesia

{"title":"Evaluation of quantification methods to determine photodynamic action on mono- and dual-species bacterial biofilms.","authors":"Rocío B Acosta, Edgardo N Durantini, Mariana B Spesia","doi":"10.1007/s43630-024-00586-7","DOIUrl":"10.1007/s43630-024-00586-7","url":null,"abstract":"The effect of photodynamic inactivation (PDI) sensitized by 5,10,15,20-tetra(4-N,N,N-trimethylammoniophenyl)porphyrin (TMAP4+) on different components of mono- and dual-species biofilms of Staphylococcus aureus and Escherichia coli was determined by different methods. First, the plate count technique showed that TMAP4+-PDI was more effective on S. aureus than E. coli biofilm. However, crystal violet staining revealed no significant differences between before and after PDI biofilms of both bacteria. On the other hand, the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method indicated a reduction in viable cells as the light exposure time increases in both, mono- and dual-species biofilms. Furthermore, it was determined that as the irradiation time increases, the amount of extracellular polymeric substances present in the biofilms decreased. This effect was presented in both strains and in the mixed biofilm, being more evident in S. aureus mono-specie biofilm. Finally, scanning electron microscopy analysis showed a decrease in the number of cells forming the biofilm after photosensitization treatments. This information makes it possible to determine whether the photodynamic action is based on damage to metabolic activity, extracellular matrix and/or biomass, which may be useful in establishing a fully effective PDI protocol for the treatment of microorganisms growing as biofilms.","PeriodicalId":98,"journal":{"name":"Photochemical & Photobiological Sciences","volume":" ","pages":"1195-1208"},"PeriodicalIF":3.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140846380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Epoxiconazole degradation in water samples: a comparative study of Fenton, photo-Fenton, solar photo-Fenton, and solar photolysis processes. 水样中的环唑醇降解：芬顿、光-芬顿、太阳能光-芬顿和太阳能光解过程的比较研究。

IF 3.1 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-06-01 Epub Date: 2024-05-15 DOI: 10.1007/s43630-024-00582-x

Julieta L Sacchetto, Leandro Fuentes Medina, Karina I Toledo, Silvana C Plem, Yamile Jalit, Eduardo A Gatica, Sandra Miskoski, José Natera, Cristian M O Lépori, Walter A Massad

{"title":"Epoxiconazole degradation in water samples: a comparative study of Fenton, photo-Fenton, solar photo-Fenton, and solar photolysis processes.","authors":"Julieta L Sacchetto, Leandro Fuentes Medina, Karina I Toledo, Silvana C Plem, Yamile Jalit, Eduardo A Gatica, Sandra Miskoski, José Natera, Cristian M O Lépori, Walter A Massad","doi":"10.1007/s43630-024-00582-x","DOIUrl":"10.1007/s43630-024-00582-x","url":null,"abstract":"Epoxiconazole (EPO) is classified as a persistent organic pollutant due to its ability to persist in the environment for prolonged periods. Its degradation is pivotal in mitigating its environmental impact. This investigation focuses on assessing the degradation of EPO using various methodologies, namely Fenton, photo-Fenton, solar photo-Fenton, and solar photolysis, conducted in both Milli-Q water and groundwater. These experiments encompassed evaluations at both the standard pH typically used in photo-Fenton reactions and the natural pH levels inherent to the respective aqueous environments. Additionally, EPO degradation products were analyzed after a 60-min reaction. Notably, in systems utilizing groundwater, the inclusion of additional iron was unnecessary, as the naturally occurring iron content in the groundwater facilitated the intended processes. Specifically, in Milli-Q water, solar photo-Fenton demonstrated an EPO degradation efficiency of 97%. Furthermore, the substitution of Milli-Q water with groundwater in Fenton-like processes did not significantly affect the efficacy of EPO degradation. These findings underscore the potential of solar photo-Fenton as an economically viable and environmentally sustainable strategy for EPO degradation.","PeriodicalId":98,"journal":{"name":"Photochemical & Photobiological Sciences","volume":" ","pages":"1143-1153"},"PeriodicalIF":3.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140924328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancements in visible-light-induced reactions via alkenyl radical intermediates. 通过烯基自由基中间体进行可见光诱导反应的进展。

IF 3.1 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-06-01 Epub Date: 2024-05-03 DOI: 10.1007/s43630-024-00580-z

Helena F Piedra, Manuel Plaza

引用次数: 0

Cyclic AMP-regulatory element-binding protein: a novel UV-targeted transcription factor in skin cancer. 环磷酸腺苷调节因子结合蛋白：皮肤癌中一种新型的紫外线靶向转录因子。

IF 3.1 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-06-01 Epub Date: 2024-05-14 DOI: 10.1007/s43630-024-00578-7

Julianne C Nayar, Myriam Abboud, Katie M Dixon

引用次数: 0

Continuing benefits of the Montreal Protocol and protection of the stratospheric ozone layer for human health and the environment. 蒙特利尔议定书》和保护平流层臭氧层对人类健康和环境的持续惠益。

IF 3.1 3区化学

Photochemical & Photobiological Sciences Pub Date : 2024-06-01 Epub Date: 2024-05-19 DOI: 10.1007/s43630-024-00577-8

S Madronich, G H Bernhard, P J Neale, A Heikkilä, M P Sulbæk Andersen, A L Andrady, P J Aucamp, A F Bais, A T Banaszak, P J Barnes, J F Bornman, L S Bruckman, R Busquets, G Chiodo, D-P Häder, M L Hanson, S Hylander, M A K Jansen, G Lingham, R M Lucas, R Mackenzie Calderon, C Olsen, R Ossola, K K Pandey, I Petropavlovskikh, L E Revell, L E Rhodes, S A Robinson, T M Robson, K C Rose, T Schikowski, K R Solomon, B Sulzberger, T J Wallington, Q-W Wang, S-Å Wängberg, C C White, S R Wilson, L Zhu, R E Neale

{"title":"Continuing benefits of the Montreal Protocol and protection of the stratospheric ozone layer for human health and the environment.","authors":"S Madronich, G H Bernhard, P J Neale, A Heikkilä, M P Sulbæk Andersen, A L Andrady, P J Aucamp, A F Bais, A T Banaszak, P J Barnes, J F Bornman, L S Bruckman, R Busquets, G Chiodo, D-P Häder, M L Hanson, S Hylander, M A K Jansen, G Lingham, R M Lucas, R Mackenzie Calderon, C Olsen, R Ossola, K K Pandey, I Petropavlovskikh, L E Revell, L E Rhodes, S A Robinson, T M Robson, K C Rose, T Schikowski, K R Solomon, B Sulzberger, T J Wallington, Q-W Wang, S-Å Wängberg, C C White, S R Wilson, L Zhu, R E Neale","doi":"10.1007/s43630-024-00577-8","DOIUrl":"10.1007/s43630-024-00577-8","url":null,"abstract":"The protection of Earth's stratospheric ozone (O3) is an ongoing process under the auspices of the universally ratified Montreal Protocol and its Amendments and adjustments. A critical part of this process is the assessment of the environmental issues related to changes in O3. The United Nations Environment Programme's Environmental Effects Assessment Panel provides annual scientific evaluations of some of the key issues arising in the recent collective knowledge base. This current update includes a comprehensive assessment of the incidence rates of skin cancer, cataract and other skin and eye diseases observed worldwide; the effects of UV radiation on tropospheric oxidants, and air and water quality; trends in breakdown products of fluorinated chemicals and recent information of their toxicity; and recent technological innovations of building materials for greater resistance to UV radiation. These issues span a wide range of topics, including both harmful and beneficial effects of exposure to UV radiation, and complex interactions with climate change. While the Montreal Protocol has succeeded in preventing large reductions in stratospheric O3, future changes may occur due to a number of natural and anthropogenic factors. Thus, frequent assessments of potential environmental impacts are essential to ensure that policies remain based on the best available scientific knowledge.","PeriodicalId":98,"journal":{"name":"Photochemical & Photobiological Sciences","volume":" ","pages":"1087-1115"},"PeriodicalIF":3.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141066669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0