Results 131 to 140 of about 52,814 (284)

Chemical Constituents and Biological Activities of Oxandra (Annonaceae): A Review

Chemistry &Biodiversity, Volume 23, Issue 1, January 2026.
ABSTRACT Oxandra (Annonaceae) comprises 29 species distributed across South and Central America. Despite this diversity, the genus remains under‐investigated. This study presents the first comprehensive review of the chemical composition and biological activities of Oxandra species, utilizing databases such as SciFinder, ScienceDirect, PubMed, and ...
Rayssa Cota Lopes, Francisco Paiva Machado, Mateus de Freitas Brito, Thalisson Amorim de Souza, Lucas Silva Abreu   +4 more
wiley   +1 more source

Chemical Aspects Influencing Crack Formation in Black‐and‐White Oil‐Based Paints: Study of Five Spanish Abstract Informalist Paintings by Antonio Saura (1930–1998)

Chemistry–Methods, Volume 6, Issue 1, January 2026.
This study explores the chemical and physical mechanisms behind the distinct cracking patterns observed in the black‐painted areas of five works by Antonio Saura. Multiband imaging and portable digital microscopy were employed to document the morphology and distribution of crack patterns.
Margherita Gnemmi, Anna Vila EspuÑa, Miguel Ángel Herrero‐Cortell, Marcello Picollo, Laura Falchi, Elena Davanzo, Laura Fuster‐López, Francesca Caterina Izzo   +7 more
wiley   +1 more source

Mass Spectrometric Studies of Diterpenes. 6. Aromatic Diterpenes. [PDF]

Acta Chemica Scandinavica, 1969
C. R. Enzell, I. Wahlberg, S. Liaaen-Jensen, Richard Evans Schultes, Alf A. Lindberg, Gert Jansen, Bo Lamm, Benny Samuelsson   +7 more
openaire   +2 more sources

Physicochemical, Mechanical, and Biological Properties of Pectin‐Based Films as Affected by Storage Time, Rosmarinus officinalis and Syzygium aromaticum Essential Oils Addition

Food Safety and Health, Volume 4, Issue 1, Page 196-206, January 2026.
Pectin films containing rosemary (Rosmarinus officinalis) and clove (Syzygium aromaticum) essential oils demonstrated enhanced antimicrobial and antioxidant effects. However, their functional stability decreased during storage, highlighting their potential as sustainable packaging materials while emphasizing the need for further optimization to improve
Raoya Khachani, Saliha Gharbi, Yousra Zantar, Ouiam El Galiou, Abdelhay Arakrak, Amin Laglaoui, Mounir Hassani Zerrouk   +6 more
wiley   +1 more source

C15 FUNCTIONALIZED DERIVATIVES OF ent-KAUR-16-EN-19-OIC ACID: ISOLATION FROM THE SUNFLOWER HELIANTHUS ANNUUS L. AND SYNTHESIS [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
The known diterpenic ester – 15α-angeloyl-ent-kaur-16-en-19-oic (angeloylgrandifl oric) acid has been isolated from the dry wastes of Helianthus annuus L.
Marina Grinco, Olga Chetraru, Veaceslav Kulciţki, Alic Barba, Alexandr Boico, Pavel F. Vlad , Nicon Ungur   +6 more
doaj  

A Labdane Diterpene from Enicosanthum congregatum [PDF]

, 1993
A labdane diterpene was isolated from the air-dried leaves of Enicosanthum congregatum. The structure has been established as 8,I6-dihydroxy-ent-Iabd-13en- 15-oic lactone on the basis of spectroscopic ...
A. Hadi, A. Hamid, Mohd Sirat, Hasnah
core  

Macaranga peltata Alleviates Neuropsychiatric Disorders in Mouse Model and Computational Study

Food Science &Nutrition, Volume 14, Issue 1, January 2026.
The methanol extract of Macaranga peltata leaves (MEMPL) exhibited notable neuropharmacological and analgesic properties in rodents. Phytochemical and GC–MS analyses confirmed diverse bioactive compounds. MEMPL (200–400 mg/kg) showed anxiolytic, antidepressant, CNS depressant, and antinociceptive effects, comparable to standard drugs.
Shaifullah Mansur Tanzil, Ahmed Azizul Hakim, Md Tasaffiul Islam, Farhan Tanvir, Israt Jahan, Arafat Faraque, Syed Mohammed Tareq, Md Areeful Haque, Md Amjad Hossen, Md. Shohel Al Faruk, Kazi Ashfak Ahmed Chowdhury, Mohammad Nazmul Islam   +11 more
wiley   +1 more source

Small grassland patches are hotspots for medicinal plants and associated phytochemical diversity in European agricultural landscapes

PLANTS, PEOPLE, PLANET, Volume 8, Issue 1, Page 231-244, January 2026.
Besides being important components of landscape‐level biodiversity, medicinal plants are essential resources for traditional and modern healthcare. However, human‐driven biodiversity loss has resulted in the decline of medicinal plant populations. By maintaining connections between nature, culture, and people, sacred natural sites can help counteract ...
Rita Engel, Orsolya Valkó, Attila Lengyel, Ádám Bede, Balázs Deák   +4 more
wiley   +1 more source

Confirmation of the stereochemistry of spiroviolene

Beilstein Journal of Organic Chemistry
We confirm the previously revised stereochemistry of spiroviolene by X-ray crystallographically characterizing a hydrazone derivative of 9-oxospiroviolane, which is synthesized by hydroboration/oxidation of spiroviolene followed by oxidation of the ...
Yao Kong, Yuanning Liu, Kaibiao Wang, Tao Wang, Chen Wang, Ben Ai, Hongli Jia, Guohui Pan, Min Yin, Zhengren Xu   +9 more
doaj   +1 more source

Development and Characterization of Copaiba Oil‐Loaded Polymeric Nanocapsules With Enhanced Antitumor Activity Against Breast Cancer Cells

Particle &Particle Systems Characterization, Volume 43, Issue 1, January 2026.
The present study developed and characterized a novel copaiba oil polymeric nanoparticle (NPOC), which was efficiently internalized by breast cancer cells, exhibited greater cytotoxicity and selectivity than free copaiba oil and standard drug doxorubicin. NPOC also reduced tumor growth and migration in 3D models.
Karinne Kelly Gadelha Marques, Allesya Lara Dantas Formiga, Ramon Ramos Marques de Souza, Isione Oliveira Castro, Heivila Monique da Silva Alexandre, Igor Gabriel da Silva Ramalho, Érika Raisla Melquiades Pereira, Lucas Medeiros Martins Carvalho, Marianna Vieira Sobral, Francisco Humberto Xavier Júnior, Juan Carlos Ramos Gonçalves   +10 more
wiley   +1 more source