AI Article Synopsis
- Hierarchical ZnO particles were created at room temperature using a biomineralization strategy involving spider silk protein peptides.
- The interaction between original ZnO nanoparticles and zinc ions in the peptide chains is crucial for the formation of porous ZnO particles.
- The resulting ZnO materials have enhanced green luminescence and potential applications in biosensors and optoelectronic devices through patterned growth with biomolecules.
Article Abstract
In this work, hierarchical ZnO particles were prepared using a biomineralization strategy at room temperature in the presence of peptides acidified from spider silk proteins. A mechanism of the mineralization of the ZnO particles was that the affinity of original ZnO nanoparticles and zinc ions in the peptide chains played an important role in controlling the biocrystallizing formation of the pore ZnO particles. The intensity of their visible green luminescence was enhanced with increases of the mineralization time due to the porous surface defects. The hierarchical ZnO materials with biomolecules will facilitate their photoluminescence spectra applications as biosensors or optoelectronic nanodevices in the future, when covalently coupled with peptides or other biomolecules to achieve patterned growth over large areas of substrate.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jcis.2008.05.040 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
One-step spray pyrolysis synthesis of ZnO/Ag hollow spheres for enhanced visible-light-driven antibacterial applications and wound healing.
Dalton Trans
January 2025
Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Tongji Shanxi Hospital, Taiyuan, 030032, China.
ZnO/Ag hollow particles were synthesized a one-step spray pyrolysis method for enhanced antibacterial activity and wound healing applications. The hollow structure and uniform distribution of Ag nanoparticles within the ZnO matrix were confirmed by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). UV-Vis spectroscopy and Tauc plot analysis revealed a reduction in the bandgap, attributed to the surface plasmon resonance (SPR) of Ag, improving light absorption in the visible range.
View Article and Find Full Text PDFParticle emissions study from tire sample with nano-silver tracer from different steps of its life cycle. A new approach to trace emissions of tire microparticles.
Sci Total Environ
January 2025
Direction Milieux et impacts sur le vivant, Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
Emissions due to tires retread/repair and incineration are a cause of concern owing to the presence of nanoparticles in the products. The assessment exposure to humans hereto related is a challenge in an environmental context. The first object of this work is to develop a method to characterize the emission sources using online (counting and sizing) and offline measurements.
View Article and Find Full Text PDFDevelopment of hybrid bionanocomposites of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with zinc oxide and silicon-doped hydroxyapatite nanocrystals and machine learning for predicting dynamic mechanical properties.
Int J Biol Macromol
December 2024
Yıldız Technical University, Department of Bioengineering, Davutpasa Campus, 34210 Esenler, İstanbul, Turkey.
The development of hybrid materials that integrate bioactive and antimicrobial properties within a biodegradable and biocompatible polymer matrix is a key focus in current biomedical research and applications. A significant research gap exists in the field of PHBV nanocomposites, particularly concerning those that simultaneously incorporate both ZnO and HAP particles. This study focuses on the fabrication and characterization of innovative hybrid bionanocomposites composed of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) combined with zinc oxide (ZnO) and silicon-doped hydroxyapatite (SiHAP) nanocrystals.
View Article and Find Full Text PDFMycosynthesis of zinc sulfide/zinc oxide nanocomposite using Fusarium oxysporum for catalytic degradation of methylene blue dye, antimicrobial, and anticancer activities.
Sci Rep
December 2024
Faculty of Science, Botany Department, Mansoura University, Mansoura, 35516, Egypt.
In the present study, extracellular cell-free filtrate (CFF) of fungal Fusarium oxysporum f. sp. cucumerinum (FOC) species, was utilized to biosynthesize zinc oxide /zinc sulfide (ZnO/ZnS) nanocomposite.
View Article and Find Full Text PDFBiopesticidal Efficacy of Green Synthesized Selenium-Doped Zinc Oxide Nanoparticles against Macrophomina phaseolina The causal agent of Maize Charcoal Rot.
Microb Pathog
December 2024
Davis Pharmaceutical Laboratories, 121, industrial triangle area, kahuta road, Islamabad.
This study explores the potential antagonistic effects of selenium-doped zinc oxide nanoparticles (Se-ZnO NPs), synthesized through a sustainable approach, on maize charcoal rot induced by the fungus Macrophomina phaseolina. Se-ZnO-NPs were prepared using the rhizobium extract of Curcuma longa and characterized for their physicochemical properties. Characterization included various in vitro parameters such as FTIR, ICP-MS, particle size, PDI, and zeta potential.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!