Results 71 to 80 of about 1,779 (176)

Radioprotective Efficacy of Jujube Aqueous Extract and Arbutin: Synergistic Antioxidant and Anti‐Apoptotic Mechanisms in Radiation Injury

Food Science &Nutrition, Volume 13, Issue 10, October 2025.
JAE demonstrates potent antioxidant activity and protects against radiation‐induced lung injury. Proteomic reveals JAE modulates apoptosis and oxidative stress pathways for radioprotection. JAE demonstrates broad cellular protection against UVC damage in lung and skin cell models.
Liping Wang, Hui Yang, Xuchen Zhou, Yufen Zhao, Long Li, Ning Wang   +5 more
wiley   +1 more source

UV–Vis Spectra of Carbonic Acid: Rationalizing Experimental Redshifts between Monomer and Bulk based on (H2CO3)n Calculations

ChemPhysChem, Volume 26, Issue 18, September 19, 2025.
In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dennis F. Dinu, Bastian Klein, Chaojiang Zhang, Radu A. Talmazan, Thomas Loerting, Hinrich Grothe, Ralf I. Kaiser, Maren Podewitz   +7 more
wiley   +1 more source

Mellitic Acid as a Stable Abiotic Precursor for Liquid‐Liquid Phase Separation: An RNA‐Independent Pathway for Prebiotic Compartmentalization

Chemistry – A European Journal, Volume 31, Issue 52, September 16, 2025.
Evidence is presented that prebiotically accessible mellitic (benzenehexacarboxylic) acid (MAc) is forming liquid droplets with short poly‐L‐lysine. The capacity of MAc to induce liquid‐liquid phase separation with short oligocations, along with abiotic synthesis routes, makes MAc a viable candidate for an ingredient of early prebiotic membraneless ...
Robert Dec, Michel W Jaworek, Matylda Wacławska, Wojciech Dzwolak, Roland Winter   +4 more
wiley   +1 more source

Mapping Interstellar Ice Inventory toward Class 0 Protostars in Star-forming Region Orion A with JWST Data

The Astrophysical Journal
We present a detailed study of the spatial distribution and chemical composition of interstellar ices toward six Class 0 protostars (HOPS-56, HOPS-60, HOPS-73, HOPS-91, HOPS-96, and HOPS-108) in the Orion A molecular cloud.
Igor Petrashkevich, Yaroslav Pavlyuchenkov, Anna Punanova, Maksim Ozhiganov, Ruslan Nakibov, Varvara Karteyeva, Svetlana Salii, Andrej Sobolev, Mikhail Medvedev, Anton Vasyunin   +9 more
doaj   +1 more source

Structure-based evaluation of Annona muricata bioactives for anticancer drug discovery: quantum chemical, molecular docking, and ADMET studies

Discover Applied Sciences
Cancer remains a leading cause of mortality worldwide, necessitating the discovery of novel therapeutic agents with improved efficacy and safety profiles.
H. S. Samuel, J. Dennis, D. Alahira, B. Bako, A. M. Abakpa, E. E. Etim, J. P. Shinggu   +6 more
doaj   +1 more source

Infrared spectroscopy of the ν3 band of C3 in helium droplets

AIP Advances, 2018
The C3 molecule is an important species known to participate in key chemical reactions in combustion and astrochemistry. Its occurrence in environments of interest, its intramolecular physics, and its intermolecular reactivity have been areas of ...
Barbara A. Harruff-Miller, Christopher E. Bunker, William K. Lewis   +2 more
doaj   +1 more source

Infrared Band Strengths and Other Properties of Three Interstellar Compounds—Amorphous Isocyanic Acid, Formaldehyde, and Formic Acid

The Astrophysical Journal
Infrared (IR) spectral features of interstellar and solar system ices have been attributed to solid organic and inorganic compounds for over 50 yr, but in many cases the laboratory IR data needed to fully quantify such work have never been published ...
Reggie L. Hudson, Yukiko Y. Yarnall, Perry A. Gerakines   +2 more
doaj   +1 more source

Editorial: Refractory Astrochemistry

Frontiers in Astronomy and Space Sciences, 2022
Ryan C. Fortenberry, Stefan T. Bromley, Stefan T. Bromley   +2 more
doaj   +1 more source

Radiation-driven Destruction of N-heterocycles in the Presence and Absence of Water Ice

The Astrophysical Journal
Simple N -heterocycles are expected to be an abundant class of molecules within the interstellar medium, and increasingly complex heterocycles (e.g., nucleobases) have been detected within meteoritic organic material and in samples returned from the ...
Patrick D. Tribbett, Yukiko Y. Yarnall, Perry A. Gerakines, Reggie L. Hudson, Christopher K. Materese   +4 more
doaj   +1 more source

Astrochemical study of early embedded disks

Frontiers in Astronomy and Space Sciences
The question of how our planet was formed and, more generally, how a planetary system forms is fundamental and has been addressed in a broad range of research domains.
Eleonora Bianchi, Eleonora Bianchi
doaj   +1 more source