Results 211 to 220 of about 48,430 (295)

Pyrimidine [PDF]

, 2017
openaire   +2 more sources

Depth of DNA photodamage in human corneas exposed to 222 nm or 254 nm UV

Photochemistry and Photobiology, EarlyView.
Representative confocal 3D image of a section of a human cornea showing nuclei in blue (Hoechst 33342) and green, which was assigned to cells exhibiting Alexa555 conjugated to anti‐CPD antibody. The depth of photodamage was measured in Z‐stacks of the human corneal epithelium after exposure of the anterior surface to 50 or 100 mJ/cm2 at 222 or 254 nm ...
Manuela Buonanno, Istvan R. Boldogh, Raabia Hashmi, Camryn Petersen, David Welch, Theresa C. Swayne, David J. Brenner   +6 more
wiley   +1 more source

Genetic analysis of pyrimidine biosynthetic enzymes in Plasmodium falciparum. [PDF]

PLoS Pathog
Rajaram K, Sievert ML, Elahi R, Blauwkamp J, Dillard LB, Absalon S, Prigge ST.   +6 more
europepmc   +1 more source

Advances in organic UV filters for sunscreens over the past decade

Photochemistry and Photobiology, EarlyView.
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon, Maria Carolina Theisen, Andressa Motta Castro, Giovana Jones Radke, Fernando Fumagalli   +4 more
wiley   +1 more source

Preparation and characterization of kaolin-[TMS]-NH₂ ⁺C(NO₂)₃ ^- as a novel heterogeneous nano-catalyst and its use in the synthesis of imidazo[1,2-<i>a</i>]pyrimidine and 1,2,4-triazolo[4,3-<i>a</i>]pyrimidines. [PDF]

RSC Adv
Dorostkar M, Nazemi-Nasyrmahale L, Shirini F.   +2 more
europepmc   +1 more source

Development of chalcones structure‐related to avobenzone: Photoprotection, photostability, and safety evaluation

Photochemistry and Photobiology, EarlyView.
Scaffold hopping strategy used to develop chalcones structure‐related to the avobenzone tautomer. Positive aspects of 2‐hydroxychalcones are highlighted. Abstract Chalcones are α,β‐unsaturated ketones with extended π‐conjugation, making them promising scaffolds for the development of organic UV filters.
Gabriela Zanella Marcon, Taíne de Bastos Brum, Nayara Fernanda Tokashike de Araujo, Gabriela Lascala Ramos, Bruna Cogo Borin, Ruth Barin, Aline Ferreira Ourique, André Passaglia Schuch, Andréa Inês Horn Adams, Lorena Rigo Gaspar Cordeiro, Letícia Cruz, Fernando Fumagalli   +11 more
wiley   +1 more source

Distribution of extraterrestrial nucleobases, other N-heterocycles, and their precursors in a sample from asteroid Bennu. [PDF]

Commun Chem
Oba Y, Koga T, Takano Y, Naraoka H, Hirakawa Y, Sunami S, Furukawa Y, Yamazaki T, Tomaru T, Dworkin JP, Glavin DP, Connolly HC, Lauretta DS.   +12 more
europepmc   +1 more source

Chemical agents to control biofilm formation in step 1 of care—Toothpastes and mouthwashes/concepts and challenges

Periodontology 2000, EarlyView.
Abstract Maintaining optimal oral hygiene is important for overall oral care, ensuring the well‐being of teeth and their surrounding tissues. In addition, it promotes fresh breath and a pleasing smile. A key element of oral self‐care is the daily use of toothpaste during regular brushing.
Maud Joosstens, Cees Valkenburg, Fridus Van der Weijden   +2 more
wiley   +1 more source

DNA Flap-Mediated Control of Transcription for Programmable RNA Synthesis. [PDF]

Angew Chem Int Ed Engl
Lee ES, Woo J, Kim S, Kim SH, Lee GH, Park KS.   +5 more
europepmc   +1 more source