Article
Chemistry, Multidisciplinary
Kohei Toh, Kosuke Nishio, Reiko Nakagawa, Syusuke Egoshi, Masahiro Abo, Amelie Perron, Shin-ichi Sato, Naoki Okumura, Noriko Koizumi, Kosuke Dodo, Mikiko Sodeoka, Motonari Uesugi
Summary: Research has shown that visible light, especially in the blue region, can cause cell dysfunction and contribute to cellular aging and age-related pathologies by generating singlet oxygen. A chemoproteomic approach has been used to map blue-light-damaged proteins in live mammalian cells, revealing that cell surface proteins are more prone to oxidation compared to other susceptible proteins. The integrin family of cell surface receptors, including ITGB1, was found to be highly impacted, leading to loss of functionality in cell adhesion and proliferation. This study highlights the importance of understanding light-induced protein damages and their effects on cellular functions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Yonghong Ding, Ziyue Zhao, Joerg Matysik, Wolfgang Gaertner, Aba Losi
Summary: Aromatic amino acids play a crucial role in determining the photophysical features of LOV proteins, affecting fluorescence quantum yields and lifetimes, triplet yields and lifetimes, and efficiency of singlet oxygen formation. Tryptophan and tyrosine can act as potential electron donors to the flavin excited states, while those located too close to the chromophore may reduce the yield of photoproduct formation. Adding inert phenylalanine in key positions can help in developing efficient LOV-based photosensitisers.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Junfeng Yang, He Su, Yanhui Dong, Yunhao Fu, Xingyuan Guo, Hang Sun, Shengyan Yin
Summary: Polymer dots (Pdots) with conjugated structures have been researched as potential photocatalysts for hydrogen evolution reactions. Soluble Pdots based on semiconducting polymer poly(9,9-dioctylfluorene) show good photocatalytic activity for photodegradation and hydrogen generation. These Pdots exhibit a high hydrogen production rate without the need for platinum or rhodium cocatalysts and may serve as promising candidates for future photocatalysis applications.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Environmental Sciences
Xiangmei Xiang, Juanjuan Zhou, Shaochen Lin, Nan Zhang, Gulizhabaier Abulipizi, Guikui Chen, Zhanjun Li
Summary: This study investigates the influence of microplastics on the phototoxicity of photosensitive pollutants and finds that microplastics significantly enhance the phototoxicity of a soluble blue dye. This enhancement is positively correlated with the concentration of microplastics and may be due to the high level of singlet oxygen generated in the gut area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Wei-Lei Zhou, Xian-Yin Dai, Wenjing Lin, Yong Chen, Yu Liu
Summary: A photo-responsive lanthanide supramolecular switch was constructed by combining a synthetic 2,6-pyridine dicarboxylic acid-modified pillar[5]arene with lanthanide ions and a dicationic diarylethene derivative. The supramolecular complex exhibited lanthanide emission and further encapsulated the diarylethene derivative to form a network supramolecular polymer, resulting in increased emission intensity and lifetime. The switch demonstrated full-color luminescence and could be reversibly tuned by UV/vis light irradiation. It also showed potential for anti-counterfeiting and on-demand color tuning applications.
Review
Chemistry, Organic
Roshan Ishwarbhai Patel, Anoop Sharma, Shivani Sharma, Anuj Sharma
Summary: Methylene blue is a versatile organic dye that can be used in photochemical reactions by utilizing visible light as a renewable energy source. This review summarizes the physiochemical properties of methylene blue for better understanding its functionality and applications in various bond constructions.
ORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Yingying Zheng, Mengyuan Li, Ninging Yu, Shengjie Wang, Lili Sun, Xiang An, Yamin Han, Jinyi Lin, Xuehua Ding, Wei Huang
Summary: This study confirms that the defect structure in organic optoelectronic materials is detrimental to the performance and stability of deep-blue OLEDs. It also reveals that unsaturated aromatic units are easily attacked by external influences to form organic radicals, leading to a decrease in LED efficiency. The suppression of organic radicals can improve the performance and stability of OLEDs.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Le Yang, Xian Wei Chua, Zhihong Yang, Xiangpeng Ding, Yong Yu, Ady Suwardi, Meng Zhao, Karen Lin Ke, Bruno Ehrler, Dawei Di
Summary: In the quest for deployable high-energy organic light-emitting diodes, this research suggests focusing on fluorescent emitters and developing design strategies to improve their efficiencies. The study demonstrates the potential of DPBF as a photon upconverter and a bright emitter for OLEDs. Additionally, DPBF's decent hole mobilities make it suitable for other printable electronics applications.
NANOSCALE ADVANCES
(2022)
Article
Public, Environmental & Occupational Health
Constance Wielick, Allyson Fries, Lorene Dams, Ravo M. Razafimahefa, Belinda Heyne, Brian H. Harcourt, Thomas S. Lendvay, Jean-Francois Willaert, Simon de Jaeger, Eric Haubruge, Etienne Thiry, Louisa F. Ludwig-Begall
Summary: Methylene blue photochemical treatment can effectively reduce infectious viral titers of murine norovirus on contaminated masks, reinforcing the position of methylene blue photochemical decontamination as an important tool in practical pandemic preparedness.
AMERICAN JOURNAL OF INFECTION CONTROL
(2022)
Article
Chemistry, Applied
Louis Peault, Servane Rochelle, Aurelien Planchat, Pierrick Nun, Erwan Le Grognec, Vincent Coeffard
Summary: This article introduces a synthesis method for epoxy dienone products starting from para-substituted phenols bearing an electron-deficient alkene. The one-pot photooxygenation/epoxidation reaction can proceed at room temperature under green light irradiation with catalytic amounts of Rose Bengal and cesium carbonate. The reaction provides a range of functionalized epoxy dienone products with diastereoisomeric ratios ranging from 4:1 to > 12:1. DFT calculations and mechanistic experiments demonstrate that the reaction proceeds through singlet oxygen-mediated photooxidation of phenols followed by an intramolecular oxygen atom transfer on the alkene side arm.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Engineering, Environmental
Pengfei Yan, Haojian Wang, Mingwen Wang, Chengwen Chai, Yaping Ye
Summary: FeS2/MoS2 shows promising prospects for wastewater degradation with high degradation efficiency and a wide applicable pH range.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Plant Sciences
Anna Barczak-Brzyzek, Grzegorz Brzyzek, Marek Koter, Ewa Siedlecka, Piotr Gawronski, Marcin Filipecki
Summary: This study reveals that light stress can trigger changes in miRNA expression. This stress response may be regulated by ROS-related signaling.
Article
Chemistry, Organic
Geovanny M. Gallardo, Damian J. Ventura, Andrew S. Petit
Summary: Photochemistry provides green alternatives to traditional reaction conditions and enables the synthesis of challenging products. This study investigated the blue-light-driven O-H functionalization of alcohols by aryldiazoacetates. The researchers demonstrated the formation of a hydrogen-bonding complex between the alcohols and aryldiazoacetates, and proposed a mechanism involving carbene intermediates. The findings improve our understanding of this photochemical transformation.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Qiangwen Fan, Longwei Zhu, Xuhuai Li, Huijun Ren, Guorong Wu, Haibo Zhu, Wuji Sun
Summary: An easy and efficient visible-light-mediated method is developed for the direct conversion of sulfides into sulfoxides without using any photocatalysts. This method shows good compatibility with functional groups, high selectivity, and yields of sulfoxides, and detailed mechanism studies have been conducted. The accessible, low-cost, and eco-friendly nature of this method makes it attractive for various applications in chemical synthesis.
Article
Materials Science, Multidisciplinary
Zhen Zhang, David G. Whitten, Alison Kell
Summary: This study reports a new and promising antibacterial and antiviral material that combines cationic conjugated oligomer electrolytes and cellulose wipe through a simple dip-coating process. The resulting highly fluorescent materials exhibit impressive killing efficiency against Escherichia coli and inactivation of SARS-CoV-2.
ACS MATERIALS LETTERS
(2022)