Light-mediated biosynthesis of size-tuned silver nanoparticles using Saccharomyces cerevisiae extract

Bioprocess and Biosystems Engineering, Journal Year: 2024, Volume and Issue: 47(10), P. 1669 - 1682

Published: July 14, 2024

Bio-based production of silver nanoparticles represents a sustainable alternative to commercially applied physicochemical manufacturing approaches and provides qualitatively highly valuable nanomaterials due their narrow size dispersity, high stability biocompatibility with broad application potentials. The intrinsic features depend on shape, whereby the controlled synthesis is challenging necessity. In present study, biosynthesis size-tuned based cell-free extracts Saccharomyces cerevisiae DSM 1333 was investigated. Single parameter optimization strategies in phases cultivation, extraction, were performed modify nanoparticle scale yield. Visible light exploited as tool production. influence white determined by using novel LED systems exposition varying irradiation intensities simultaneous performance control experiments dark. Characterization resulting spectrophotometric analysis, dynamic scattering, scanning electron microscopy, energy dispersive X-ray spectroscopy, revealed spherical controlled, light-mediated shifts markedly increased quantities. Matching irradiated non-irradiated reaction mixtures mirrored enormous functionality photon input sensitivity process. yields more than 90% at

Language: Английский

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Molecular characterization and transcriptional response of Lactuca sativa seedlings to co-exposure to graphene nanoplatelets and titanium dioxide nanoparticles

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 282, P. 116761 - 116761

Published: July 23, 2024

Language: Английский

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Synthesis of nano-zinc oxide by conventional chemical precipitation vs microwaves and its effect on the germination of cucumber (Cucumis sativus) seeds

Results in Chemistry, Journal Year: 2024, Volume and Issue: 10, P. 101720 - 101720

Published: Aug. 1, 2024

Nanostructured ZnO (ZnO-NE) were successfully synthesized and seed germination growth of cucumber seedlings in the laboratory evaluated. The synthesis ZnO-NE was done by direct precipitation (DP) microwave-assisted heating with a domestic microwave (Domestic MW) vs professional (Professional MW). crystalline phases, morphology, absorption properties samples characterized XRD, FTIR, HR-SEM, UV–Vis DRS respectively. seeds evaluated through an experimental design completely randomized five treatments six repetitions. number roots, length diameter main root, hypocotyl quantified. percentage, indices seedling vigor calculated. All methods presented wurtzite structure; smaller size (34 nm) crystal DP larger (60 microwave. Professional MW produced hexagonal prismatic particles while Domestic there no defined but tendency to form bars. syntheses had high percentage Zn, O higher C MW, Na detected, both similar stoichiometric ratio, although closest one MW. Eg values 3.12, 3.14 3.16 eV for DP, different sources modified root hypocotyl, secondary index survival containers. Therefore, preparation its application contributes improving morphological characteristics post-emergence seedlings.

Language: Английский

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Enhancing the salt stress resistance of seeds and seedlings via a brassinolide sustained release agent system

Chemical and Biological Technologies in Agriculture, Journal Year: 2023, Volume and Issue: 10(1)

Published: Dec. 1, 2023

Abstract Background The growing escalation of soil salinization is tremendously threatening the global food security and development sustainable agriculture. To address worldwide predicament caused by salt stress toward crops, combining nanotechnology with merits plant hormone may become an efficient effective approach. Results In this work, a sustained release agent system (BR@MSN) was developed loading brassinolide (BR) to mesoporous silica nanoparticles (MSN) enhance resistance cucumber seeds seedlings. obtained BR@MSN about 120 nm. As endogenous hormone, promotion in crop growth found at low BR concentration. Due property, avoided excessive exposure seedlings cause inhibitory effects. After application BR@MSN, effect from combined regulation enhancement MSN nanocarrier improved seed germination rate 11.76% under saline environment. Compared same concentration (2.0 mg/L), increased even 1324.29%. addition, remarkable wettability on foliar surfaces found, significantly enhanced alleviating accumulation reactive oxygen species (ROS) increasing cell viability along improvement superoxide dismutase (SOD) activity (234.11%), decrease malondialdehyde (MDA) content (61.30%), increase chlorophyll (110.88%). Conclusions newly agents could effectively seedlings, their applications seedling growth. efficacy makes potential agricultural field for enhancing crops facilitating Graphical

Language: Английский

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Editorial to special issue on New Avenues in application of nanotechnology for sustainable

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 211, P. 108432 - 108432

Published: Feb. 8, 2024

Language: Английский

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