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We report on a novel technique of surface texturing of polyethylene terephthalate (PET) foil in the presence of silver nanoparticles (AgNPs). This approach provides a variable surface morphology of PET evenly decorated with AgNPs. Surface texturing occurred in silver nanoparticle colloids of different concentrations under the action of pulse excimer laser. Surface morphology of PET immobilized with AgNPs was observed by AFM and FEGSEM. Atomic concentration of silver was determined by XPS. A presented concentration-controlled procedure of surface texturing of PET in the presence of silver colloids leads to a highly nanoparticle-enriched polymer surface with a variable morphology and uniform nanoparticle distribution.
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http://dx.doi.org/10.3390/ma14123263 | DOI Listing |
ACS Appl Mater Interfaces
September 2025
Instituto de Cerámica y Vidrio (ICV-CSIC), C/Kelsen 5, 28049 Madrid, Spain.
The oxygen reduction reaction (ORR) is critical to energy conversion technologies and requires efficient catalysts for superior performance. Herein, nitrogen-doped carbide-derived carbon (N-CDC) catalysts are prepared using novel engineered molecular architectures based on polymer-derived ceramic technology. The obtained catalyst materials show a surface N concentration of >5 wt % and a hierarchically porous structure, resulting in a specific surface area of over 2000 m g.
View Article and Find Full Text PDFAnalyst
September 2025
Ulm University, Institute of Analytical and Bioanalytical Chemistry, Albert-Einstein-Allee 11, D-89081 Ulm, Germany.
This study aims at the establishment of a universally applicable etching methodology to unveil the nanoscale crystalline structure of the matrix resin in fiber reinforced thermoplastic (FRTP) composites scanning electron microscopy (SEM). The crystalline structure hierarchically consists of crystalline texture, spherulite and lamella. The details of these structures are key parameters to understand the relationship with the mechanical properties of the material for the advancement.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Department of Physics, Faculty of Education, Seiyun University, Hadhramout, Yemen. Electronic address:
In the present study, polymer composite samples were fabricated using the casting technique by incorporating varying weight percentages (0.0, 0.1, 0.
View Article and Find Full Text PDFFront Med (Lausanne)
August 2025
Department of Hematology, Qilu Hospital, Shandong University, Jinan, China.
A 73-year-old male was admitted to our department with complaints of upper abdominal distension, accompanied by dull pain and belching for more than 10 days. Gastroscopy revealed a broad-based raised lesion, approximately 1.0 cm in diameter, on the anterior wall of the gastric body, with a central star-shaped depression, erosion, and surrounding congestion.
View Article and Find Full Text PDFFood Chem
September 2025
College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China. Electronic address:
This study investigated the effects of electron beam irradiation (0-8 kGy) on the physicochemical and protein properties of scallop adductor muscles under refrigerated storage. Irradiation significantly decreased moisture content, microbial counts, and total sulfhydryl content immediately after treatment (day 0), while increasing carbonyl content, surface hydrophobicity, and thiobarbituric acid reactive substances (TBARS) (P < 0.05).
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