Results 141 to 150 of about 24,253 (308)

Chemical Constituents and Biological Activity of Asam Aur Aur (Garcinia Parvifolia) and Jinggau (Ploiarium Alternifolium) [PDF]

, 2007
Chemical and biological studies were carried out on two plants, Garcinia parvifolia (Guttiferae) and Ploiarium alternifolium (Theaceae). The chemical investigations covered xanthones, benzophenones, anthraquinones, and triterpenes.
Ng, Sook Han
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Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

Santon Diprenilasi dari Kayu Akar Garcinia Tetranda Pierre [PDF]

, 2015
Garcinia tetranda merupakan salah satu spesies dari famili Clusiaceae yang mengandung senyawa metabolit sekunder. Senyawa golongan santon telah berhasil diisolasi dari fraksi S ekstrak etil asetat kayu akar Garcinia tetranda Pierre.
Ersam, T. (Taslim), Kharomah, F. R. (Fuji)   +1 more
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Synthesis and Characterization of a β‐Thio‐δ‐Diimine (BTDDI) and the Related Bimetallic Dimethylaluminium(III) Compound

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The stepwise transformation of BODDI to BTDDI and further to the aluminium complex is accompanied by a distinct color evolution from colorless to yellow/orange (thermochromic) and finally to an intensely orange species. Thionation of the β‐oxo‐δ‐diimine (BODDI) 3 with P2S5·2Py affords the ditopic β‐thio‐δ‐diimine (BTDDI) 4. Based on 1H NMR spectroscopy
Janine Kowalke, Thale Rathsack, Tobias Rüffer, Stephan Kupfer, Robert Kretschmer   +4 more
wiley   +1 more source

Hydrophobic eutectic solvents for surface water treatment with a focus on benzophenone type UV filters

Ecotoxicology and Environmental Safety
Effective removal of organic UV filters from aquatic environmental compartments and swimming waters is very important because these substances are hazardous to humans and wildlife at low concentrations and act as endocrine disruptors.
Kateřina Hrabáková, Tomáš Hložek, Zuzana Bosáková, Petr Tůma   +3 more
doaj   +1 more source

Surface Micro‐Discharge Plasma for Multiple Teeth Bleaching: Efficacy, Mechanism and Safety

High Voltage, EarlyView.
ABSTRACT Hydrogen peroxide (H2O2) is the commonly‐used bleaching chemical in clinical practice, but its excessive concentrations can cause tooth damage. Atmospheric pressure cold plasma is considered a promising new technique for tooth bleaching. Surface micro‐discharge (SMD) devices can generate large‐scale plasma, which holds potential for treating ...
Ruike Chen, Haoran Feng, Yinglong Li, Hong Pan, Hangbo Xu, Zhen Jiao, Dongjie Cui, Ruonan Ma   +7 more
wiley   +1 more source

Contact Sensitization in Patients With Frontal Fibrosing Alopecia: Patch Test Results With an Extended Baseline Series in Consecutive Patients

Contact Dermatitis, EarlyView.
Sensitization to propolis, shellac and gallate mix is FFA‐associated, but its relevance is largely unknown. Sensitization to salicylates is frequent and associated with symptoms of intolerance to sun exposure or sunscreens. No significant improvement by allergen avoidance is identified.
María‐Antonia Pastor‐Nieto, María Elena Gatica Ortega, Anna María Giménez‐Arnau, Tatiana Sanz‐Sánchez, Pedro Mercader García, Inmaculada Ruíz‐González, Gemma Melé‐Ninot, Pablo Chicharro, Paloma Sánchez‐Pedreño, Marina de Vega, Miguel Ángel Gallego Descalzo, Leopoldo Borrego   +11 more
wiley   +1 more source

Probing skin photoallergens in reconstructed human epidermis: An EPR spin trapping investigation

Photochemistry and Photobiology, Volume 101, Issue 2, Page 275-281, March/April 2025.
We present an original proof‐of‐concept methodology to probe radical generation from allergens in contact with photoexposed skin, using electron paramagnetic resonance and spin trapping in a reconstructed human epidermis model mimicking real‐life exposure scenarios.
Yannick Port‐Lougarre, Guillaume Voegeli, Bertrand Vileno, Elena Giménez‐Arnau   +3 more
wiley   +1 more source

Antiviral properties of Berembang Bukit and Kandis Hutan against psedorabies virus in animal cell culture [PDF]

, 2011
Tropical rainforest in Malaysia represents and untapped potential source of antiviral compounds. Bioactive compounds in plant species from the same genus as Kandis Hutan such as xanthones, benzophenones, biflavonoids and lupeol had been studied ...
Allaudin, Zeenathul Nazariah, Goh, Sheen Yee, Loh, Sandy Hwei San, Mohd Lila, Mohd Azmi, Tan, Seok Shin, Ting, Kang Nee   +5 more
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Photoprotective potential of gadusol against ultraviolet B radiation in melanocytes

Photochemistry and Photobiology, EarlyView.
Gadusol protects melanocytes from ultraviolet B (UVB)‐induced damage without cytotoxicity. Abstract The increasing incidence of skin cancer, including melanoma, combined with the need for ultraviolet (UV) filters that are safe for human health and marine ecosystems, is driving the search for new photoprotective agents.
Andressa Mai Matsumoto, Rocío Isla Naveira, Andy Joel Taipe Huisa, Marcelo Augusto Germani Marinho, Lais Zortéa, José María Monserrat, Agueda Elena Massa, María Sandra Churio, Ana Paula de Souza Votto   +8 more
wiley   +1 more source