Preparation and Application of Hybrid Nanomaterials

Meroni, D.; Ardizzone, S.

doi:10.3390/nano8110891

Cited by 25 publications

(6 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hybrid nanomaterials, formed by two or more components with at least one component being at the nanometric dimension, combine the intrinsic characteristics of their individual constituents to give additional properties due to the synergistic effects between the components. The main reason why these individual components are connected together is to combine their most favorable properties with one another and at the same time to eliminate the disadvantages of each component [4]. The preparation of hybrid nanocomposite materials is itself very difficult and demanding.…”

Section: Introductionmentioning

confidence: 99%

Effects of Ultrasound on Zinc Oxide/Vermiculite/Chlorhexidine Nanocomposite Preparation and Their Antibacterial Activity

et al. 2019

View full text Add to dashboard Cite

Microbial infection and biofilm formation are both problems associated with medical implants and devices. In recent years, hybrid organic-inorganic nanocomposites based on clay minerals have attracted significant attention due to their application potential in the field of antimicrobial materials. Organic drug/metal oxide hybrids exhibit improved antimicrobial activity, and intercalating the above materials into the interlayer of clay endows a long-term and controlled-release behavior. Since antimicrobial activity is strongly related to the structure of the material, ultrasonic treatment appears to be a suitable method for the synthesis of these materials as it can well control particle size distribution and morphology. This study aims to prepare novel, structurally stable, and highly antimicrobial nanocomposites based on zinc oxide/vermiculite/chlorhexidine. The influence of ultrasonic treatment at different time intervals and under different intercalation conditions (ultrasonic action in a breaker or in a Roset’s vessel) on the structure, morphology, and particle size of prepared hybrid nanocomposite materials was evaluated by the following methods: scanning electron microscopy, X-ray diffraction, energy dispersive X-ray fluorescence spectroscopy, carbon phase analysis, Fourier transforms infrared spectroscopy, specific surface area measurement, particle size analysis, and Zeta potential analysis. Particle size analyses confirmed that the ultrasonic method contributes to the reduction of particle size, and to their homogenization/arrangement. Further, X-ray diffraction analysis confirmed that ultrasound intercalation in a beaker helps to more efficiently intercalate chlorhexidine dihydrochloride (CH) into the vermiculite interlayer space, while a Roset’s vessel contributed to the attachment of the CH molecules to the vermiculite surface. The antibacterial activity of hybrid nanocomposite materials was investigated on Gram negative (Escherichia coli, Pseudomonas aeruginosa) and Gram positive (Staphylococcus aureus, Enterococcus faecalis) bacterial strains by finding the minimum inhibitory concentration. All hybrid nanocomposite materials prepared by ultrasound methods showed high antimicrobial activity after 30 min, with a long-lasting effect and without being affected by the concentration of the antibacterial components zinc oxide (ZnO) and CH. The benefits of the samples prepared by ultrasonic methods are the rapid onset of an antimicrobial effect and its long-term duration.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of Ultrasound on Zinc Oxide/Vermiculite/Chlorhexidine Nanocomposite Preparation and Their Antibacterial Activity

et al. 2019

View full text Add to dashboard Cite

show abstract

“… 75 Emissions due to excited states of Ag atoms are also observed at the 328.3 nm lines; 338.38 nm; 521 nm and 546.8 nm, however with lower intensities, indicating that Ag particles are formed during arc-discharge, where these lines are related to the transitions of Ag neutral. 75 Ag atoms are separated from the Ag electrode when bombarded by plasma species such as H, OH radicals and O atoms.…”

Section: Resultsmentioning

confidence: 97%

Green, facile and fast synthesis of silver nanoparticles by using solution plasma techniques and their antibacterial and anticancer activities

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Starch -Evolution and Recent Advances more organic or inorganic components such as organic-organic (starch-cellulose), inorganic-inorganic (TiO 2 -Ag), and organic-inorganic (starch-TiO 2 ) compounds, connected at the nanometer scale, combine the intrinsic characteristics of its individual constituents to additional properties due to synergistic effects between the components [21,22]. These hybrid materials are synthesized by different methods such as covalent immobilization, electrostatic binding, polymerization methods, among others [21].…”

Section: Hybrid Nanomaterialsmentioning

confidence: 99%

Starch-Based Hybrid Nanomaterials for Environmental Remediation

Gamage¹,

Thiviya²,

Madhujith³

2022

Biochemistry

View full text Add to dashboard Cite

Environmental pollution is becoming a major global issue with increasing anthropogenic activities that release massive toxic pollutants into the land, air, and water. Nanomaterials have gained the most popularity in the last decades over conventional methods because of their high surface area to volume ratio and higher reactivity. Nanomaterials including metal, metal oxide, zero-valent ions, carbonaceous nanomaterials, and polymers function as adsorbents, catalysts, photocatalysts, membrane (filtration), disinfectants, and sensors in the detection and removal of various pollutants such as heavy metals, organic pollutants, dyes, industrial effluents, and pathogenic microbial. Polymer-inorganic hybrid materials or nanocomposites are highly studied for the removal of various contaminants. Starch, a heteropolysaccharide, is a natural biopolymer generally incorporated with other metal, metal oxide, and other polymeric nanoparticles and has been reported in various environmental remediation applications as a low-cost alternative for petroleum-based polymers. Therefore, this chapter mainly highlights the various nanomaterials used in environmental remediation, starch-based hybrid nanomaterials, and their application and limitations.

show abstract

Preparation and Application of Hybrid Nanomaterials

Abstract: The growing demand of new materials with tailored physicochemical properties has propelled hybrid materials to a position of prominence in materials science by virtue of their remarkable new properties and multifunctional nature. [...]

Cited by 25 publications

References 27 publications

Effects of Ultrasound on Zinc Oxide/Vermiculite/Chlorhexidine Nanocomposite Preparation and Their Antibacterial Activity

Effects of Ultrasound on Zinc Oxide/Vermiculite/Chlorhexidine Nanocomposite Preparation and Their Antibacterial Activity

Green, facile and fast synthesis of silver nanoparticles by using solution plasma techniques and their antibacterial and anticancer activities

Starch-Based Hybrid Nanomaterials for Environmental Remediation

Contact Info

Product

Resources

About