Results 41 to 50 of about 4,491 (261)

Polyisoprenylated benzophenones from Clusia floral resins

, 2015
From the floral resins of various Clusia species, seven polyisoprenylated benzophenones were isolated. HPLC allowed their quantification in all resins, revealing a distribution of benzophenone derivatives distinct from each other.
Machado, SMF, de Oliveira, CMA, Bittrich, V, Amaral, MDE, Porto, ALM, Marsaioli, AJ   +5 more
core   +2 more sources

Dalbergia ecastaphyllum (L.) Taub. and Symphonia globulifera L.f.: The Botanical Sources of Isoflavonoids and Benzophenones in Brazilian Red Propolis

Molecules, 2020
The Brazilian red propolis (BRP) constitutes an important commercial asset for northeast Brazilian beekeepers. The role of Dalbergia ecastaphyllum (L.) Taub. (Fabaceae) as the main botanical source of this propolis has been previously confirmed. However,
Gari Vidal Ccana-Ccapatinta, Jennyfer Andrea Aldana Mejía, Matheus Hikaru Tanimoto, Milton Groppo, Jean Carlos Andrade Sarmento de Carvalho, Jairo Kenupp Bastos   +5 more
doaj   +1 more source

Photoreduction of Benzophenones by Amines in Room-Temperature Ionic Liquids

, 2016
The amine-mediated photoreduction of benzophenones in room temperature ionic liquids was investigated. Unlike the analogous reaction in organic solvents, the photoreduction produces mainly the corresponding benzhydrol in most cases.
John L. Reynolds (3065031), Paul B. Jones (1576930), Kimberly R. Erdner (3065034)   +2 more
core   +1 more source

Leaf‐Inspired Eutectic Skin With Extreme Fatigue Resistance and Robust Wet Adhesion for Amphibious Epidermal Electronics

Advanced Materials, EarlyView.
Inspired by Acorus calamus leaves, a heterogeneous eutectic skin integrates an aligned fibrous network within a hydrophobic eutectogel matrix. This hierarchical architecture triggers strain‐induced crystallization to achieve exceptional mechanical toughness and durable wet adhesion.
Jiayu Hou, Jiancheng Dong, Je Hyeong Kim, Chang Zhou, Shiyin Lin, Xingyu Liu, Hao Qiu, Mengting Zheng, Yuduo Zhang, Haijun Zhu, Kangjia Geng, Yidong Peng, Haoran Liu, Yunpeng Huang, Yongsheng Luo, Steve Park, Tianxi Liu   +16 more
wiley   +1 more source

Toxicity of UV Filter Benzophenone-3 in Brine Shrimp Nauplii (Artemia salina) and Zebrafish (Danio rerio) Embryos

Journal of Xenobiotics
The benzophenone (BP) family, including oxybenzone (BP-3), a prevalent sunscreen ingredient and environmental contaminant, has raised concerns since the year 2005.
Melissa I. Ortiz-Román, Ileska M. Casiano-Muñiz, Felix R. Román-Velázquez   +2 more
doaj   +1 more source

Magnetic Polyamide Nanocomposites for the Microextraction of Benzophenones from Water Samples

Molecules, 2019
In this article, the influence of the monomers on the extraction efficiency and the effect of the addition of surfactants during the synthesis have also been considered.
Hoda Ghambari, Emilia M. Reyes-Gallardo, Rafael Lucena, Mohammad Saraji, Soledad Cárdenas   +4 more
doaj   +1 more source

Synthesis of fluorinated benzophenones and phenylcoumarins. [PDF]

, 2015
Ph. D. University of KwaZulu-Natal, Pietermaritzburg 2015.The aim of this project was to develop methods for the preparation of fluorine analogues of natural products.
Mzozoyana, Vuyisa.
core  

Hammett ρ of Reactions of MeLi with Benzophenones

, 2016
Relative rates of reactions of MeLi with benzophenones in diethyl ether at 0 °C that furnish methyldiarylmethanols were determined using slow addition of a MeLi solution to solutions containing an excess of two benzophenones.
Herman G. Richey (2641402), Keith M. Maclin (3029952)   +1 more
core   +1 more source

Tunable‐Threshold UV Dosimetry With Programmable Luminescent Tags via Oxygen‐Mediated Room‐Temperature Phosphorescence

Advanced Materials Technologies, EarlyView.
A fully organic UV threshold dosimeter is developed by exploiting the oxygen‐sensitive room‐temperature phosphorescence of a purely organic emitter in a polymer matrix. Upon reaching a specific cumulative UV dose, photochemical oxygen depletion triggers a sharp, high‐contrast emission.
Tim Achenbach, Paul‐Anton Will, Karl Sebastian Schellhammer, Sebastian Reineke   +3 more
wiley   +1 more source

Depolymerization of robust polyetheretherketone to regenerate monomer units using sulfur reagents

Communications Chemistry, 2023
Polyetheretherketone (PEEK) is an important super engineering plastic utilized in industries owing to its thermal stability and mechanical strength, however, its robustness hinders chemical recycling.
Yasunori Minami, Nao Matsuyama, Yasuo Takeichi, Ryota Watanabe, Siby Mathew, Yumiko Nakajima   +5 more
doaj   +1 more source