Results 121 to 130 of about 7,590 (235)

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela, Raffael Silva Santos Almeida, Ivana Ferreira Simões, Aline Gonçalves Miranda, Magno Oliveira Ramos, Roberto Rodrigues Bandeira Tosta Maciel, Fernanda Warken Rosa, Aníbal de Freitas Santos Júnior   +7 more
wiley   +1 more source

Polymerizable ultraviolet stabilizers for outdoor use [PDF]

Polymeric materials that are stable enough to use outdoors without changes in excess of 20 years are investigated. Ultraviolet stabilizers or plastic materials were synthesized, polymerizable ultraviolet stabilizers, particularly of the 2(2-hydroxyphenyl)
Vogl, O.
core   +1 more source

Impact of organic pollutants on phenotype and gene expression in human breast cancer cells

Journal of Applied Toxicology, Volume 46, Issue 5, Page 1487-1505, May 2026.
ABSTRACT Human exposure to industrial chemical compounds is widespread and, although often beneficial, prolonged contact may contribute to disease development, including cancer. While many studies have shown organic pollutants (OP) are cytotoxic, few have explored how long‐term exposure alters cell phenotype.
Camila Confortin, Heloisa Amancio, Jessica Zablocki da Luz, Aliciane de Almeida Roque, Tugstênio Lima de Souza, José Eduardo Vargas, Ciro Alberto de Oliveira Ribeiro, Francisco Filipak Neto   +7 more
wiley   +1 more source

Ecotoxicological Evaluation of Organic Sunscreens Used Worldwide, Alone and in Mixture, on Terrestrial Plants

Environmental Toxicology, Volume 41, Issue 5, Page 257-269, May 2026.
ABSTRACT The environmental hazards of sunscreens are discussed worldwide. However, there are few ecotoxicological studies on these compounds alone for edaphic organisms, and none for their mixtures. Avobenzone (1 and 10 ng/L), octocrylene (10 and 100 μg/L), and oxybenzone (2 and 20 μg/L), alone and in binary combinations (between the lowest and the ...
Diego Espirito Santo, Edson Araújo de Almeida, Elisângela Dusman, A. C. Downs, Regiane da Silva Gonzalez, Osvaldo Valarini Junior, Ana Paula Peron   +6 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

Nonlinear optical properties of organic materials: A theoretical study [PDF]

Replacement of electronic switching circuits in computing and telecommunication systems with purely optical devices offers the potential for extremely high throughput and compact information processing systems.
Cardelino, Beatriz H.
core   +1 more source

Surfactant‐Enhanced Electrospun Nanofiber Filters for Efficient Viral and Bacterial Inactivation

Journal of Applied Polymer Science, Volume 143, Issue 13, April 5, 2026.
In this work, electrospun polyacrylonitrile (PAN) nanofibrous filters functionalized with surfactants (CTAB, CPC, and SDS) were developed for air filtration applications. The PAN nanofiber mats enable efficient particulate matter capture while simultaneously providing antimicrobial and antiviral activity against bacteria (E. coli and S.
Edilton N. da Silva, Paulo A. M. Chagas, Gustavo C. da Mata, Felipe A. Lima, Fabiana B. Furtado, Wanderley P. de Oliveira, Rejane M. T. Grotto, Clovis W. O. de Souza, Mônica L. Aguiar, Vádila G. Guerra   +9 more
wiley   +1 more source

Photoinduced Generation of (Boryl)Silyl and (Chloro)Silyl Radicals: Access to Trisubstituted Silylboranes and Chlorosilanes

Angewandte Chemie, Volume 138, Issue 13, 23 March 2026.
A versatile photoinduced hydro(boryl)silylation and hydro(chloro)silylation of alkenes to construct trisubstituted silylboranes and chlorosilanes was achieved through in situ generation of (boryl)silyl radicals or (chloro)silyl radicals. This mild methodology affords high chemoselectivity and broad functional group tolerance to enable direct access to ...
Mone Suzuki, Yuki Nagashima
wiley   +2 more sources

Chemical constituents and antioxidant activity of garcinia parvifolia Miq. stem bark [PDF]

, 2015
The chemical constituents of GarciniaparvifoliaMiq.stem bark have been studied. The dried samples have been extracted using Soxhlet apparatus to give the crude products.
Ahmad, Farediah, Basar, Norazah, Hassan, Muhammad Aizam   +2 more
core  

Direct Introduction of Fluorocyclopropyl Groups via Energy Transfer Catalysis

Advanced Synthesis &Catalysis, Volume 368, Issue 7, 1 April 2026.
This work describes an efficient, straightforward protocol for the direct incorporation of fluorinated cyclopropyl moieties via energy‐transfer catalysis. The method unlocks access to a broad range of previously inaccessible fluorocyclopropyl compounds in good yields.
Yinpeng Wang, Tao Yang, Marc Taillefer, Alexis Prieto   +3 more
wiley   +1 more source