Results 151 to 160 of about 240,649 (221)

Nanopore Size-Dependent Raman Spectroscopy of Two-Dimensional γ‑Graphyne. [PDF]

open access: yesACS Omega
de Almeida Garcia JM   +4 more
europepmc   +1 more source

Myths and Truths About Electrophilic Aromatic Substitution: The Particular Case of Fluorobenzene

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 2, February 2026.
Nitration σ‐complex formation is exothermic, and halogens—particularly fluorine—enhance para reactivity, challenging traditional descriptions of halogens as purely deactivating in EAS. ABSTRACT Electrophilic aromatic substitution (EAS) is a fundamental reaction introduced early in organic chemistry courses, highlighting the influence of substituents on
Francisco A. Martins   +1 more
wiley   +1 more source

Pyrolysis converts urban pruning waste into biochar with soil and climate benefits. [PDF]

open access: yesSci Rep
de Jesus Paula R   +9 more
europepmc   +1 more source

Cardenolide‐Engineered Extracellular Vesicles Augment Drug Uptake and Cytotoxicity in Non‐small Cell Lung Cancer Cells

open access: yesSmall Methods, Volume 10, Issue 3, 9 February 2026.
Cardenolide‐functionalized extracellular vesicles enable targeted delivery of the chemotherapeutic doxorubicin to A549 lung cancer cells by binding Na+/K+‐ATPase, which is overexpressed in these cells. Surface‐modified, drug‐loaded EVs exhibit enhanced cytotoxicity compared to unmodified EVs and free drug, suggesting this system may lower the effective
Maja Dorfner   +7 more
wiley   +1 more source

Hybrid Revascularization Approach Using Robot-Assisted Bilateral Internal Mammary Artery Grafting. [PDF]

open access: yesBraz J Cardiovasc Surg
Issa HMN   +10 more
europepmc   +1 more source

Effect of Process Parameters on Friction Properties of AISI 304 Steel Sheet during Strip Drawing Test

open access: yessteel research international, Volume 97, Issue 2, Page 955-966, February 2026.
This study investigates how drawing process parameters affect the tribological behavior of AISI 304 steel sheet. Under lubricated conditions, increasing normal force, drawing speed, and countersamples roughness reduces the coefficient of friction by up to 21%.
Felipe de Souza Leal   +6 more
wiley   +1 more source

Sample purification and characterization of the α‐ and β‐crustacyanin pigments from the American lobster for crystallographic and cryo‐EM studies

open access: yesActa Crystallographica Section F, Volume 82, Issue 2, Page 49-56, February 2026.
The striking blue colour of the American lobster is caused by proteins that interact with the red pigment astaxanthin, causing its colour change. We have purified and characterized the pigments from the American lobster for crystallographic and cryo‐EM studies.The striking blue hue of live Homarus americanus, known as the American lobster, arises from ...
Maria Claudia Cedri   +10 more
wiley   +1 more source

Optical properties of cicada wings covered by graphene studied by nano-Raman spectroscopy. [PDF]

open access: yesJ Microsc
Torres VAF   +9 more
europepmc   +1 more source

Milk Kefir Beverage Improves Histomorphometry, Reduces Inflammatory Infiltrates and Desulfovibrio and Increases Lactobacillus in IL‐10−/− Mice

open access: yesJournal of Food Science, Volume 91, Issue 2, February 2026.
ABSTRACT This study aimed to evaluate the effects of milk kefir on parameters related to inflammatory bowel disease (IBD) in interleukin‐10 knockout (IL‐10−/−) mice. Sixteen C57BL/6J IL‐10−/− male mice were divided into two experimental groups. The control group (n = 8) received 0.4 mL of whole milk (UHT) and the kefir group (n = 8) received 0.4 mL of ...
Iasmim Xisto Campos   +10 more
wiley   +1 more source

Brazil's health tax at a crossroads: safeguarding the constitutional victory against ultra-processed foods. [PDF]

open access: yesLancet Reg Health Am
Neves FS   +9 more
europepmc   +1 more source

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