Nanoindentation study of the mechanical and damage behaviour of suspension plasma sprayed TiO2 coatings

TiO2 coatings can be used as self-cleaning surfaces owing to their photocatalytic and hydrophilic properties. Suspension plasma spray (SPS) has proven to be a feasible and cheap technique for producing self-cleaning surfaces with acceptable photo-activity. This paper presents a nanoindentation study of the mechanical properties (hardness. Young's modulus and scratch resistance) of photoactive layers of suspension plasma sprayed TiO2 coatings applied on to glass substrates. Microstructure observation showed that the rutile grains were surrounded by fine anatase crystals. Under the same spraying conditions, the resulting anatase/rutile concentrations varied depending on the cooling rate (the substrate being either cooled with water or in air). The results showed that higher concentrations of anatase, which is softer than rutile, reduced the scratch damage and increased the friction coefficient. (C) 2011 Elsevier B.V. All rights reserved.The study was financially supported by the Spanish Ministry of Science and Innovation (PID-600200-2009-5 and MAT2009-14144-C03-01 -02).Rayón Encinas, E.; Bonache Bezares, V.; Salvador Moya, MD.; Bannier, E.; Sánchez, E.; Denoirjean, A.; Ageorges, H. (2012). Nanoindentation study of the mechanical and damage behaviour of suspension plasma sprayed TiO2 coatings. Surface and Coatings Technology. 206(10):2655-2660. doi:10.1016/j.surfcoat.2011.11.010S265526602061

Correlation of biocapping agents with cytotoxic effects of silver nanoparticles on human tumor cells

10.1039/C3RA41346BRSC Advances314329-1433

Review: Pharmacological effects of Capparis spinosa L.

Medicinal plants have been known as one of the most important therapeutic agents since ancient times. During the last two decades, much attention has been paid to the health-promoting effects of edible medicinal plants, because of multiple beneficial effects and negligible adverse effects. Capparis spinosa L. is one of the most common medicinal plants, used widely in different parts of the world to treat numerous human diseases. This paper aims to critically review the available scientific literature regarding the health-promoting effects of C. spinosa, its traditional uses, cultivation protocols and phytochemical constituents. Recently, a wide range of evidence has shown that this plant possesses different biological effects, including antioxidant, anticancer and antibacterial effects. Phytochemical analysis shows that C. spinosa has high quantities of bioactive constituents, including polyphenolic compounds, which are responsible for its health-promoting effects, although many of these substances are present in low concentrations and significant changes in their content occur during processing. In addition, there is negligible scientific evidence regarding any adverse effects. Different health promotion activities, as well as tremendous diversity of active constituents, make C. spinosa a good candidate for discovering new drugs. However these findings are still in its infancy and future experimental and clinical studies are needed

Functional microcircuits in the brain and in artificial intelligent systems

[EN] Fundamental principles underlying higher-order cognitive functions remain elusive, but recent breakthroughs in neurophysiology and deep learning offer new perspectives. First, experimental studies have uncovered neural circuit motifs consisting of various neuron types; see Brain Initiative Cell Census Network (https://www.nature.com/collections/cicghheddj). For example, inhibitory neuron types expressing exclusive genes have specific targets and distinct functions (Pfeffer et al., 2013).This work was partly supported by the Generalitat Valenciana Gen-T Program (Ref. CIDEGENT/2019/043) and Grant PID2020-120037GA-I00 funded by MCIN/AEI/10.13039/501100011.Lee, JH.; Choe, Y.; Ardid, S.; Abbasi-Asl, R.; Mccarthy, M.; Hu, B. (2023). Functional microcircuits in the brain and in artificial intelligent systems. Frontiers in Computational Neuroscience. 17. https://doi.org/10.3389/fncom.2023.11355071