Metal particles - Nanotechnology

What are Metal Nanoparticles?

Metal nanoparticles are particles composed of metals that have sizes in the range of 1 to 100 nanometers. They exhibit unique physical and chemical properties due to their small size and large surface area-to-volume ratio, which can dramatically differ from their bulk counterparts. Examples include gold nanoparticles, silver nanoparticles, and platinum nanoparticles.

How are Metal Nanoparticles Synthesized?

There are several methods used to synthesize metal nanoparticles, including chemical reduction, sol-gel processes, and biological synthesis. Chemical reduction involves reducing metal salts to their corresponding metals using reducing agents. Sol-gel processes involve the transition of a system from a liquid "sol" into a solid "gel" phase. Biological synthesis uses plant extracts or microorganisms to produce nanoparticles in an eco-friendly manner.

What are the Applications of Metal Nanoparticles?

Metal nanoparticles have a wide range of applications across various fields. In medicine, they are used for drug delivery, diagnostic imaging, and as antimicrobial agents. In electronics, they are employed in conductive inks for printed electronics and in the fabrication of nanoscale devices. Additionally, they find use in catalysis, where their high surface area enhances the efficiency of catalytic reactions.

What are the Advantages of Using Metal Nanoparticles?

The use of metal nanoparticles offers several advantages, including enhanced reactivity, improved optical properties, and increased surface area. Their small size allows for easy penetration into biological cells, making them ideal for medical applications. Their unique optical properties enable their use in sensors and imaging, while their large surface area enhances catalytic activities.

What are the Challenges Associated with Metal Nanoparticles?

Despite their numerous advantages, there are challenges associated with the use of metal nanoparticles. One major concern is their toxicity and potential environmental impact. Studies have shown that some metal nanoparticles can be toxic to living organisms and may accumulate in the environment. Additionally, there are challenges related to the stability and aggregation of nanoparticles, which can affect their performance and applications.

What is the Future of Metal Nanoparticles in Nanotechnology?

The future of metal nanoparticles in nanotechnology is promising, with ongoing research aimed at overcoming current challenges and expanding their applications. Advances in green synthesis methods are expected to make production more sustainable and eco-friendly. Furthermore, the development of multi-functional nanoparticles that combine different properties and functions is anticipated to open new avenues in fields such as theranostics (therapy and diagnostics) and smart materials.

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A Metatitanic Acid Particulate Xerogel: Green Synthesis, Structure Determination, and Detailed Characterization.

Issue Release: 2024

In-depth characterization of exhaust particles performed on-board a modern cruise ship applying a scrubber.

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Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers using Polymer-coated Particles.

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Neglected sludge solid phase in sludge pretreatment process: Physicochemical characterization and mechanism study of its role in anaerobic degradation.

Issue Release: 2024

Characterization of the inhalable fraction (< 10 μm) of soil from highly urbanized and industrial environments: magnetic measurements, bioaccessibility, Pb isotopes and health risk assessment.

Issue Release: 2024

Bioglass and nano bioglass: A next-generation biomaterial for therapeutic and regenerative medicine applications.

Issue Release: 2024

Low-temperature Co-precipitation Synthesis of ZnAlO Nanophosphors Probing its Luminescent, Antibacterial and Anticancer Potentials.

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Europium insertion into MgAl hydrotalcite-like compound to promote the photocatalytic oxidation of nitrogen oxides.

Issue Release: 2024

Nano-delivery platforms for bacterial gene transformation: suitability and challenges.

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Synthesis and characterization of Pyrus communis fruit extract synthesized ZnO NPs and assessed their anti-diabetic and anti-microbial potential.

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Fabrication of lignocellulose/liquid metal-based conductive eutectic hydrogel composite for strain sensors.

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Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology.

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Enhanced stability and biocompatibility of HIPEs stabilized by cyclodextrin-metal organic frameworks with inclusion of resveratrol and soy protein isolate for β-carotene delivery.

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Development of Ni-doped A-site lanthanides-based perovskite-type oxide catalysts for CO methanation by auto-combustion method.

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Carbonaceous materials from a petrol primary oily sludge: Synthesis and catalytic performance in the wet air oxidation of a spent caustic effluent.

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Facile Fabrication of Titanium Carbide (Ti3C2)-Bismuth Vanadate (BiVO4) Nano-Coupled Oxides for Anti-cancer Activity.

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Monodispersed mesoscopic star-shaped gold particles via silver-ion-assisted multi-directional growth for highly sensitive SERS-active substrates.

Issue Release: 2024

Liposome-based hybrid drug delivery systems with DNA nanostructures and metallic nanoparticles.

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Integrating High-Performance Flexible Wires with Strain Sensors for Wearable Human Motion Detection.

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The Growth and Shape Evolution of Indium Nanoplates Studied by In Situ Liquid Cell TEM.

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