Results 111 to 120 of about 343,291 (192)

Developing giant plasma membrane vesicles from Leishmania cells to investigate the role of membrane proteins in photodynamic inactivation

Photochemistry and Photobiology, EarlyView.
In this study, we developed giant plasma membrane vesicles (GPMVs) from Leishmania amazonensis promastigote membranes to investigate the role of protein‐embedded membranes in methylene blue (MB) photooxidation. Upon MB photoactivation in model lipid membranes (giant unilamellar vesicles, GUVs), a distinct photooxidation effect was observed, marked by ...
Maressa D. F. de Souza, Pietro Ciancaglini, Rosangela Itri, Martha S. Ribeiro   +3 more
wiley   +1 more source

Chemical Procedures for Paint Removal in Used Thermoplastics for Revalorization as a Raw Material in the Automotive Industry

Advances in Polymer Technology
The recycling of thermoplastic polymers from end-of-life vehicles is crucial to achieve a circular economy within the sector and prevent the accumulation of plastic waste by reusing it. However, several challenges in these processes present difficulties,
Carla Zambrano Membrives, Pablo Tamarit, Ana Inés Fernandez, Camila Barreneche   +3 more
doaj   +1 more source

Exploring natural sunscreens: UVB protection and antioxidant properties in gadusol‐rich fish roes extracts

Photochemistry and Photobiology, EarlyView.
Gadusol‐rich extracts provide effective UVB protection and antioxidant activity in HaCaT cells and C. elegans, highlighting their potential as natural photochemoprotective agents for pharmaceutical and cosmetic applications. It also demonstrates remarkable in vitro antioxidant capacity and thermal stability over time.
Rocío Isla Naveira, Gabriela Hollmann, José María Monserrat, Ana Paula S. Votto, Julie Medeiros da Silveira, Andressa Mai Matsumoto, Lais Zortéa, Andy Joel Taipe Huisa, Agueda E. Massa, M. Sandra Churio   +9 more
wiley   +1 more source

The effect of chalcogen substitution on the structure and spectroscopy of 4,7-dimethyl-2: H -chromen-2-one/thione analogues [PDF]

, 2017
4,7-Dimethyl-2H-chromen-2-one (1) and its novel sulfur analogue 4,7-dimethyl-2H-chromen-2-thione (2) were synthesized and fully characterized by spectroscopic methods and mass spectrometry. The crystal structure of compound 2 has been determined by X-ray
Delgado Espinosa, Zuly Yuliana, Echeverría, Gustavo Alberto, Erben, Mauricio Federico, Mahmood, Shamsul, Piro, Oscar Enrique, Saeed, Aamer   +5 more
core   +2 more sources

Polydopamine Coating in Trabecular Bone‐Like Scaffolds With Strontium‐Substituted Nanohydroxyapatite for Bone Tissue Engineering

Journal of Applied Polymer Science, Volume 143, Issue 9, March 5, 2026.
PLA and strontium‐substituted hydroxyapatite filaments were used in 3D printing to fabricate a trabecular‐inspired scaffold. The scaffold was functionalized with a polydopamine coating. Characterization revealed enhanced surface properties and mechanical performance, supporting its potential application in bone tissue engineering.
Adones Almeida Rocha, Vinicius Oliveira dos Santos, Alexandre Malta Rossi, Anna Carla Araujo, Rossana Mara da Silva Moreira Thiré   +4 more
wiley   +1 more source

Persistence of atoms in molecules: there is room beyond electron densities

IUCrJ
Evidence that the electronic structure of atoms persists in molecules to a much greater extent than has been usually admitted is presented. This is achieved by resorting to N-electron real-space descriptors instead of one- or at most two-particle ...
María Menéndez-Herrero, Ángel Martín Pendás   +1 more
doaj   +1 more source

From Rigid to Elastic: Tailoring the Properties of Linear Poly(IBOA‐co‐2EHA) Copolymers Synthesized by UV Polymerization

Journal of Applied Polymer Science, Volume 143, Issue 7, February 15, 2026.
The combination of a rigid monomer (IBOA) and a flexible monomer (2‐EHA) via free‐radical copolymerization yields amorphous poly(IBOA‐co‐2‐EHA) with a wide range of tunable mechanical properties. The image depicts how increasing the IBOA content shifts the material's behavior from that of an elastic elastomer (PEHA) to a rigid, brittle plastic (PIBOA),
Djazia Bendeddouche, Lamia Bedjaoui‐Alachaher, Aida Jover, Mohammed Aymen Zehouani, Amina Bouriche, Anne‐Sophie Schuller, Christelle Delaite, Ulrich Maschke   +7 more
wiley   +1 more source

Layered double hydroxides-indomethacin nanohybrids: intercalation, pH influence, stability and release properties [PDF]

, 2016
In this work, three pH values (8, 9 and 10) were studied for the insertion of Indomethacin (Indo) molecules into Layered Double Hydroxides (LDHs). The obtained results showed that the LDH materials have been a good storage for the drug.
Crivello, Mónica Elsie, Granero, Gladys Ester, Longhi, Marcela Raquel, Mendieta, Silvia Nazaret, Oliva, Marcos Iván, Perez, Celso Francisco, Reyes Nuñez, Patricio   +6 more
core   +1 more source

Specialization: A multidimensional and integrative perspective

Ecosphere
Specialization remains as a controversial and ambiguous term in ecology. Although it has been usually measured using a dichotomic and simplified classification of specialists and generalists, its nature is by far more complex.
Clara Rodríguez‐Arribas, María Prieto, Gregorio Aragón, Jesús López‐Angulo, Adrián Escudero, Isabel Martínez   +5 more
doaj   +1 more source

Fluorescent Carbon Dots with Red Emission: A Selective Sensor for Fe(III) Ion Detection

Chemosensors
We present a procedure for the synthesis and purification of p-phenylenediamine-based carbon dots that can be used for the recognition of Fe(III) ions. Carbon dots have an approximately spherical shape with an average size of 10 nm and are composed of a ...
Ángela Fernández-Merino, Miriam Chávez, Guadalupe Sánchez-Obrero, Rafael Madueño, Manuel Blázquez, Rafael Del Caño, Teresa Pineda   +6 more
doaj   +1 more source