Photochemical smog is the result of complex chemistry taking place when sunlight irradiates the atmosphere laden with organic gases and nitrous oxides. High temperatures and bright sun light favour photochemical smog. The secondary pollutants, formed from the organic gases and nitrous oxides, are more aggressive and dangerous as the first pollutants. Secondary pollutants are O3, organic nitrate...

BACKGROUND Development of resistance to 5-fluorouracil (5-FU) is a major problem in treatment of various cancers including pancreatic cancer. In this study, we reveal important resistance mechanisms and photochemical strategies to overcome 5-FU resistance in pancreatic adenocarcinoma. METHODS 5-FU resistant (5-FUR), epithelial-to-mesenchymal-like sub-clones of the wild type pancreatic cancer ...

A new series of all-heterahomocalixarene-type structures was prepared. The new hetera[2(n)]metacyclophanes obtained contain a benzophenone moiety as photoactive component. Although both forms possess identical building blocks and differ only in ring size, they are markedly different in photochemical reactivity. The cyclophane size is the driving force for the photochemical behaviour of the benz...

Citation: Haug M, Brede G, Håkerud M, Nedberg AG, Gederaas OA, Flo TH, Edwards VT, Selbo PK, Høgset A and Halaas Ø (2018) Photochemical Internalization of Peptide Antigens Provides a Novel Strategy to Realize Therapeutic Cancer Vaccination. Front. Immunol. 9:650. doi: 10.3389/fimmu.2018.00650 Photochemical internalization of Peptide antigens Provides a novel strategy to realize Therapeutic canc...

The unique optical properties of the fluoropolymer microcapillary film (MCF) material combined with the extremely fast photoinactivation of Herpes HSV-1 virus, and photodegradation of indigo carmine, diclofenac and benzoylecgonine in the MCF array photoreactor, demonstrate a new, flexible and inexpensive platform for rapid photochemical transformations, high-throughput process analytics and pho...

Citation: Hopwood MJ, Riebesell U, Arístegui J, Ludwig A, Achterberg EP and Hernández N (2018) Photochemical vs. Bacterial Control of H2O2 Concentration Across a pCO2 Gradient Mesocosm Experiment in the Subtropical North Atlantic. Front. Mar. Sci. 5:105. doi: 10.3389/fmars.2018.00105 Photochemical vs. Bacterial Control of H2O2 Concentration Across a pCO2 Gradient Mesocosm Experiment in the Subt...

In the present study of phytochemical screening of the seed extract of Myristica fragrance essential oil using standard method of photochemical analysis. The solvents used for extraction of essential oil were methanol, dichloromethane, hexane and chloroform. The preliminary phytochemical investigation showed that Myristica fragrance essential oil to contain some secondary metabolites such as of...

Aminomethyltrioxsalen (AMT), a psoralen, is known to cause interstrand crosslinks in double stranded nucleic acids. We have demonstrated the photochemical reversal of this reaction, and have used this result to develop a method for identification of specific sequences which are adjacent because of RNA secondary structure formation. E. coli 5S rRNA is used as a model system. We isolated and char...