Results 1 to 10 of about 257,507 (151)

Study of In Vitro and In Vivo Carbamazepine Release from Coarse and Nanometric Pharmaceutical Emulsions Obtained via Ultra-High-Pressure Homogenization [PDF]

open access: yesPharmaceuticals, 2020
In the past decade, pharmaceutical nanotechnology has proven to be a promising alternative for improving the physicochemical and biopharmaceutical features for conventional pharmaceutical drug formulations.
Juan D. Echeverri   +5 more
doaj   +2 more sources

Dynamic Nucleophilic Aromatic Substitution of Tetrazines

open access: yesAngewandte Chemie, Volume 133, Issue 34, Page 18931-18939, August 16, 2021., 2021
All the advantages of dynamic covalent chemistry and the versatility of the tetrazine moiety have been combined in a novel exchange reaction: The nucleophilic aromatic substitution of tetrazines (SNTz) with phenols and alkyl thiols. Not only sophisticated structures could be easily synthesized, but more importantly, post‐functionalization by IEDDA or ...
Tanausú Santos   +6 more
wiley   +2 more sources

Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants

open access: yesNanomaterials, 2021
Based on the response surface methodology, a rheological and tribological study carried out on eco-friendly lubricants is described. Such ecolubricants consisted of fibrillated or crystalline nanocellulose in vegetable oil (castor oil, high oleic ...
Samuel D. Fernández-Silva   +3 more
doaj   +1 more source

Evidence‐based policies: Lessons from regulatory science

open access: yesPolitics &Policy, Volume 51, Issue 4, Page 524-537, August 2023., 2023
Abstract In this article, various examples of controversies in regulatory science are analyzed concerning chemical and pharmaceutical products and functional foods. In these controversies, it is possible to show the relationship between epistemic policies and regulatory objectives (decision‐making objectives).
José Luis Luján
wiley   +1 more source

Structural and compositional dimensions of phytochemical diversity in the genus Piper reflect distinct ecological modes of action

open access: yesJournal of Ecology, Volume 110, Issue 1, Page 57-67, January 2022., 2022
Crude extract 1H NMR diversity synthesizes the compositional diversity and structural complexity of phytochemical mixtures. Plants can develop chemical diversity through different combinations of structural and compositional biosynthetic mechanisms; thus, methods incorporating both dimensions of phytochemical diversity can provide new theoretical ...
Casey S. Philbin   +4 more
wiley   +1 more source

Thermal and Rheological Properties of Hydrophobic Nanosilica in Sunflower Oil Suspensions at High Pressures

open access: yesNanomaterials, 2021
Nowadays, the reduction of the environmental impact associated with the operation of the oil industry is a primary concern. A growing trend is to develop low-toxicity formulations based on biodegradable components.
María J. Martín-Alfonso   +3 more
doaj   +1 more source

Exposición a químicos disruptores endócrinos obesogénicos y obesidad en niños y jóvenes de origen latino o hispano en Estados Unidos y Latinoamérica: una perspectiva del curso de la vida

open access: yesObesity Reviews, Volume 22, Issue S5, Octubre 2021., 2021
Resumen En el 2019, en seguimiento a un taller dirigido por el Global Health Studies del Fogarty International Center sobre el tema de la prevención de la obesidad infantil y las sinergias de investigación que surgen a través de las colaboraciones transfronterizas, convocamos a un grupo de expertos de Estados Unidos y Latinoamérica para que realizaran ...
Wei Perng   +16 more
wiley   +1 more source

Fatigue performance evaluation of bitumen mastics reinforced with polyolefins through a dissipated energy approach

open access: yesMateriales de Construccion, 2020
Polymers are known to improve the fatigue resistance of sphalt mastics. However, undesirable results can be obtained if the polymer is not successfully integrated into the bitumen binder. The goal of this work is to evaluate the effect of the addition of
C. Roman   +2 more
doaj   +1 more source

Solid Lipid Nanoparticles (SLNs) with Potential as Cosmetic Hair Formulations Made from Otoba Wax and Ultrahigh Pressure Homogenization

open access: yesCosmetics, 2020
The development and physicochemical characterization of solid lipid nanoparticles (SLNs) with potential for formulating hair cosmetic products were carried out.
Sandra Rubiano   +2 more
doaj   +1 more source

Influence of the Nanoclay Concentration and Oil Viscosity on the Rheological and Tribological Properties of Nanoclay-Based Ecolubricants

open access: yesLubricants, 2021
This manuscript describes a rheological and tribological study carried out on eco-friendly lubricants. These ecolubricants were made up of nanoclays as dispersed phase (a layered nanosilicate (montmorillonite Cloisite 15A) and a fiber-like nanoclay ...
Samuel D. Fernández-Silva   +3 more
doaj   +1 more source

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