Results 131 to 140 of about 7,119 (254)

Polarity‐Engineered, Tribo‐Positive Imidazolium‐Mediated Crosslinked 6FDA‐Durene Films for Triboelectric Nanogenerator

Small, EarlyView.
Imidazolium‐mediated crosslinking transforms 6FDA‐durene PI from tribo‐negative to tribo‐positive by modulating the surface electronic structure and charge‐transfer behavior. DFT calculations confirm the experimentally observed polarity transition.
Sorour Faramarzi, Shabnam Yavari, Ukiliaiym Ospanova, Adilet Shynggys, Irshad Kammakakam, Haifeng Ji, Jiayi Wang, Zhen Wen, Gulnur Kalimuldina   +8 more
wiley   +1 more source

Formation of cyclopentanes and cyclopropanes through alkylation of benzylic anions using ethers, thioethers and alcohols as substrates under Grubbs-Stoltz (Et₃SiH/KO<i>t</i>Bu) conditions. [PDF]

Chem Sci
Stewart AJ, Dimitrova D, Logan STM, Pratley C, Bell JD, McGonigal K, Lauer A, Fenner S, Nicolle SM, Leach SG, Murphy JA.   +10 more
europepmc   +1 more source

Solvent‐Responsive Porous Organic Cage‐Based Membranes With Switchable Pore Openings for Molecular Sieving and Heavy Metal Recovery

Small, EarlyView.
An in situ fabricated porous organic cage membranes (PCM) exhibits reversible solvent pore switching property in response to water and methanol. Water stimulated structural rearrangement enables selective removal of Rh B and heavy metal ions (Ni2+ and Zn2+), whereas methanol stimulates the pore expansion promotes Ni2+ and Zn2+ ions recovery.
Jisha Kuttiani Ali, Emad Alhseinat
wiley   +1 more source

Visible-Light-Mediated Radical Truce-Smiles Rearrangement via Arylazo Sulfones. [PDF]

JACS Au
Di Terlizzi L, Nicchio L, Montinho-Inacio E, Tiwari N, Derat E, Retailleau P, Fagnoni M, Neuville L, Protti S, Masson G.   +9 more
europepmc   +1 more source

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies

Smart Molecules, EarlyView.
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Litao Zhou, Haoyuan Li, Jianhua Zhang, Hanshen Xin   +3 more
wiley   +1 more source

Sulfur fluoride exchange with carbon pronucleophiles. [PDF]

Chem Sci
Novicki JR, Teeter MD, Baldwin NJ, Am Ende CW, Puleo TR, Richardson AD, Ball ND.   +6 more
europepmc   +1 more source

Oxidative Damage, Energy Imbalance, and Behavioral Disruptions in Girardia tigrina Exposed to Treated Sewage Effluents

Environmental Toxicology, EarlyView.
ABSTRACT This study assessed the ecotoxicological effects of treated sewage on the freshwater planarian Girardia tigrina, integrating biochemical, energetic, and behavioral biomarkers. Planarians were exposed for 48 h to different concentrations of treated sewage (12.5%, 25%, 50%, and 100%) and compared to controls using commercial water and water from
Renata M. P. Freitas, Pedro H. Carvalho, Daniela de Melo e Silva, Carlos Gravato   +3 more
wiley   +1 more source

Pyridine-boryl radical mediated synthesis of quinolines <i>via</i> α-amino radical formation and intramolecular alkenyl sulfone trapping.

Org Chem Front
Valderrama-Callejón R, Alonso I, Gómez S, Jiménez D, Dorado-Briones G, Vargas EL, Tortosa M, Cid MB.   +7 more
europepmc   +1 more source

Recent advances in copper-catalyzed direct hydroamination of alkenes with (hetero)aromatic amines. [PDF]

Beilstein J Org Chem
Lee H, Lee Y.
europepmc   +1 more source

Presence of Nationally Banned Carbamates and Organophosphate Pesticides in Wild Carnivores, Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT As top predators, terrestrial carnivores face great risk of pesticide exposure and serve as sentinels of environmental contamination. Additionally, terrestrial carnivores are frequently threatened by intentional or secondary poisoning with highly toxic compounds, such as carbamates and organophosphates.
Marina Pellegrino da Silva, Vagner Gonçalves‐Junior, Mauricio Candido da Silva, André Rinaldi Fukushima, Rose Lilian Gasparini‐Morato, Helenice de Souza Spinosa, Ana Carolina Ewbank, Carlos Sacristán, Ana de la Torre, José Luiz Catão‐Dias, Pedro Enrique Navas‐Suárez   +10 more
wiley   +1 more source