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We present a low-temperature versatile protocol for the fabrication of plasma nanocomposite thin films to act as tunable emitters and optical gain media. The films are obtained by the remote plasma-assisted deposition of a 4-(dicyano-methylene)-2-methyl-6-(4-dimethylamino-styryl)-4H-pyran (DCM) laser dye alongside adamantane. The experimental parameters that determine the concentration of the dye in the films and their optical properties, including light absorption, the refractive index, and luminescence, are evaluated. Amplified spontaneous emission experiments in the DCM/adamantane nanocomposite waveguides show the improvement of the copolymerized nanocomposites' properties compared to films that were deposited with DCM as the sole precursor. Moreover, one-dimensional distributed feed-back laser emission is demonstrated and characterized in some of the nanocomposite films that are studied. These results open new paths for the optimization of the optical and lasing properties of plasma nanocomposite polymers, which can be straightforwardly integrated as active components in optoelectronic devices.
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http://dx.doi.org/10.1021/acsami.7b01534 | DOI Listing |
Ecotoxicol Environ Saf
August 2025
Department of Plant Production and Genetics, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran; Department of Plant Production and Genetics, Faculty of Agriculture, Urmia University, Urmia, Iran.
Soil and water contamination by heavy metals and nanoplastics poses a critical environmental challenge, threatening agricultural productivity and food safety. This study investigated a novel strategy to mitigate the combined toxicity of arsenic (As) and polymethyl methacrylate nanoplastics (PMMANPs) in wheat using cold plasma (CP) seed priming and a green-synthesized Ag/Zn/Fe nanocomposite (NC). A randomized complete block design (RCBD) with three replications was employed.
View Article and Find Full Text PDFNanoscale Adv
August 2025
Neurochemistry Lab, Department of Biochemistry, Karnatak University Dharwad Karnataka-580003 India
Dopamine is a pivotal neurotransmitter in the central nervous system, which is instrumental in motor functions. Parkinson's Disease (PD) is a chronic, progressive, age-related neurodegenerative disorder marked by the progressive loss of dopaminergic neurons in the pars compacta of the in the midbrain, resulting in the reduction of dopamine levels. Levodopa is a prescribed medicine for symptomatic relief of PD, as it is an amino acid precursor of dopamine that readily crosses the Blood-Brain Barrier (BBB).
View Article and Find Full Text PDFMikrochim Acta
August 2025
Center of Nanotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
Therapeutic monitoring of agomelatine (AG), an antidepressant with significant pharmacokinetic variability, is hindered by the complexity and cost of conventional methods. This work presents a novel electrochemical sensor employing a ternary FeZn-layered double hydroxide (LDH)/graphene/polyaniline nanocomposite for sensitive AG detection in biological and pharmaceutical samples. The synergistic properties of the nanocomposite-combining catalytic activity, high conductivity, and electrochemical stability-were confirmed through XRD, FESEM-EDS, and XPS characterization.
View Article and Find Full Text PDFACS Appl Mater Interfaces
August 2025
Jiangsu Key Laboratory of Frontier Material Physics and Devices, School of Physical Science and Technology, Soochow University, Suzhou 215006, P. R. China.
Reasonably developing and designing bifunctional electrocatalysts with high activity is crucial for continuously obtaining hydrogen fuel during the overall water-splitting process. Earth-abundant spinel nickel cobaltite materials have been investigated as promising oxygen evolution reaction (OER) catalysts in alkaline solution. However, its insufficient performance in the hydrogen evolution reaction (HER) significantly restricts its applicability in integrated water-splitting systems.
View Article and Find Full Text PDFSmall
August 2025
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
The treatment of persistent drug-resistant bacterial infections in wounds poses a significant global medical challenge. Developing innovative antimicrobial strategies capable of simultaneously achieving bacterial eradication, inflammation resolution, and tissue regeneration has become imperative. Herein, a nanocomposite featuring plasma-enhanced enzymatic activity and immunoregulatory properties is engineered, designed to reprogram the wound microenvironment and expedite healing in drug-resistant bacterial infections.
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