Results 71 to 80 of about 8,996 (197)

Environmental Impacts of Perovskite Solar Cell Materials: Transparency and Reproducibility Gaps, and Reporting Recommendations

Global Challenges, Volume 10, Issue 8, August 2026.
Published life cycle inventories for materials used in perovskite solar cell layers were identified through a systematic review and remodeled. The results revealed large variations in environmental impact estimates for the same materials, including methylammonium iodide and formamidinium iodide.
A. Kamal Kamali, Olga Fuentes, Bertrand Laratte, Guido Sonnemann   +3 more
wiley   +1 more source

Computer Vision Enables Monitoring and Kinetic Analysis of Structurally Diverse Carbon Monoxide Surrogates

Angewandte Chemie, Volume 138, Issue 29, 13 July 2026.
A non‐contact computer vision method enables monitoring and quantitative comparison of vessel‐specific CO release kinetics from structurally diverse surrogates in two‐chamber COware reactors, revealing that surrogate reactivity scores correlate with carbonylation reaction outcomes.
Kristin Donnachie, Ciaran Griffin, Morven L. Gray, Timothy J. D. McCabe, Marc Reid   +4 more
wiley   +2 more sources

Occurrence and Washout of Health‐Hazardous Chemicals in Children's Clothing

Contact Dermatitis, Volume 95, Issue 2, Page 148-158, August 2026.
A survey of 60 children's garments from the Swedish market showed a varying, often highly complex chemical content. The highest levels were generally found in synthetic materials and the lowest in light‐coloured cotton. Further, the washout effect by laundry and sweat migration of textile chemicals was investigated.
Awat Dostberg, Tim Åström, Ioannis Sadiktsis, Conny Östman, Ulrika Nilsson   +4 more
wiley   +1 more source

Risk Assessment Models for Heated Tobacco Products

Risk Analysis, Volume 46, Issue 8, August 2026.
ABSTRACT Heated tobacco products (HTPs) are marketed as alternatives to conventional cigarettes with a potential reduced risk profile. Yet, their actual impact on cancer and noncancer disease risk remains uncertain and requires rigorous quantitative assessment.
Lucia Maddalena, Beril Yildiz, Francesca Del Vecchio Blanco, Mario Rosario Guarracino   +3 more
wiley   +1 more source

Safety and efficacy of a feed additive consisting of nicarbazin (NICACOX®) for chickens for fattening and chickens reared for laying (Huvepharma N.V.)

EFSA Journal, Volume 24, Issue 8, August 2026.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a feed additive consisting of nicarbazin (NICACOX®) as a coccidiostat for chickens for fattening and chickens reared for laying.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Giovanna Martelli, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Georges Bories, Paul Brantom, Jürgen Gropp, Guido Rychen, Luca Tosti, Ruud Woutersen, Jaume Galobart, Fabiola Pizzo, Alberto Navarro‐Villa, Maria Vittoria Vettori, José Cortiñas Abrahantes, Orsolya Holczknecht   +28 more
wiley   +1 more source

Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges

Angewandte Chemie International Edition, Volume 65, Issue 31, 27 July 2026.
Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley   +1 more source

Automated Dynamic Flow Experimentation for Rapid Kinetic Fitting of Transition Metal Catalysis

Angewandte Chemie, Volume 138, Issue 28, 6 July 2026.
We have developed an automated dynamic flow experimentation platform to automatically fit and identify the most accurate kinetic model from a generated set of candidates. Three transition metal‐catalyzed transformations were performed using this workflow.
Florian L. Wagner, Klara Silber, Tobias A. Doliner, C. Oliver Kappe   +3 more
wiley   +2 more sources

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

Chemistry – A European Journal, Volume 32, Issue 28, 25 July 2026.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve, Mariana Gomes Manso, Tibo Van Eeckhoorn, Mark E. Light, Bruno Linclau   +4 more
wiley   +1 more source

Polysilane‐Supported Nickel as an Efficient Catalyst for the Hydrogenation of Aromatic Compounds†

Chinese Journal of Chemistry, Volume 44, Issue 14, Page 2277-2282, 15 July 2026.
A Ni/Si catalyst obtained from the reaction of poly(monohydro)silane with Ni(cod)2 serves as an effective heterogeneous catalyst for the hydrogenation of arenes under reaction conditions that are significantly milder than those required for conventional nickel‐based catalysts such as Raney nickel.
Hiromu Baba, Yusuke Sunada
wiley   +1 more source

β-Cyclodextrin Functionalized Au@Ag Core-Shell Nanoparticles: Plasmonic Sensors for Cysteamine and Efficient Nanocatalysts for Nitrobenzene-to-Aniline Conversion

Biosensors
We reported the gold/silver core-shell nanoparticles (Aucore@Agshell NPs) functionalized with β-cyclodextrin (β-CD) as versatile nano-agents demonstrated for human urine-based biosensing of cysteamine and catalytic conversion from nitrobenzene (NB) to ...
Ramar Rajamanikandan, Kandasamy Sasikumar, Heongkyu Ju   +2 more
doaj   +1 more source