Metallic Nanoparticles
Metallic Nanoparticles - Related Videos
08:12
Generation of Zerovalent Metal Core Nanoparticles Using n-(2-aminoethyl)-3-aminosilanetriol
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Cited by 4 •
2016
A novel method for metal core nanoparticle synthesis using a water stable silanol is described.
07:40
Production of Metal Nanoparticles by Pulsed Laser-ablation in Liquids: A Tool for Studying the Antibacterial Properties of Nanoparticles
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Cited by 14 •
2017
The antimicrobial properties of metals such as copper and silver have been recognized for centuries. This protocol describes pulsed laser-ablation in liquids, a method of synthesizing metal nanoparticles that provides the ability to fine tune the properties of these nanoparticles to optimize their antimicrobial effects.
09:02
Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
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Cited by 1 •
2015
We report protocols for “polymerizing” various types of polymer-encapsulated metal nanoparticles into long chains of “homo-“ and “co-polymers”.
07:47
Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles
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Cited by 4 •
2015
A “removable ceramic coating method” is presented in visual format for the synthesis of non-sintered and metal-terminated monometallic and bimetallic early transition metal carbide and nitride nanoparticles with tunable sizes and crystal structures.
12:19
Identification of Metal Oxide Nanoparticles in Histological Samples by Enhanced Darkfield Microscopy and Hyperspectral Mapping
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Cited by 37 •
2015
Enhanced darkfield microscopy and hyperspectral imaging with spectral mapping enable screening, localization, and identification of nanoscale materials in histological samples with improved speed and accuracy over traditional methods. The goal of this paper is to provide methods for darkfield imaging and hyperspectral mapping of metal oxide nanoparticles in histological samples.
FAQs
Their high surface-area-to-volume ratio exposes more material at interfaces relative to the particle’s overall volume. That geometry can increase interactions with surrounding substances and make surface-dependent processes more prominent. For engineering applications, this feature helps explain why nanoscale metallic materials can behave differently from bulk metals, particularly when used in catalytic or sensing systems.
In some metals, incident light drives collective electron behavior at the nanoparticle surface, producing localized surface plasmon resonance. The response depends on nanoscale characteristics such as particle size and shape, so engineers can use optical changes as a basis for chemical or biological sensing. This mechanism also contributes to the distinctive light-related behavior of these particles.
Composition, particle shape, surface coatings, and assembly conditions are central engineering variables. Changing them can alter optical, electrical, magnetic, or catalytic responses without treating all metallic nanoparticles as interchangeable. Surface coatings can also modify how particles interact at interfaces, while assembly conditions influence how individual particles are organized into larger functional structures.
Integration depends on the intended engineering platform. Metallic nanoparticles may serve as active materials in catalysts and sensors, functional components in conductive inks and energy devices, or additives in antimicrobial coatings and advanced nanocomposites. Their value comes from matching tunable nanoscale responses to the performance needs of the larger material or device.
They support several application classes: catalysis uses their interfacial reactivity, sensing can exploit size- and shape-dependent optical responses, and conductive inks use their electrical behavior. Engineers also incorporate them into energy devices, antimicrobial coatings, and advanced nanocomposites, selecting particle design variables according to the function required in each system.
Assembly conditions determine how nanoparticles are organized when they become part of a larger engineered structure. That organization can affect how the particles collectively deliver optical, electrical, magnetic, or catalytic behavior. Consequently, controlling assembly is important when translating properties observed at the nanoscale into conductive inks, energy devices, coatings, or nanocomposites.