Synthesis and Applications of Copper & Copper Oxide Nanoparticles

The synthesis and applications of copper and copper oxide nanoparticles offer a wide range of possibilities in various scientific and technological fields. These nanomaterials exhibit unique properties that make them valuable for diverse applications, ranging from healthcare and catalysis to environmental remediation and electronics.

Characteristics of Copper-based Nanoparticles

• High Surface Area

Copper nanoparticles (Cu NPs) exhibit a high surface area-to-volume ratio due to their small size, which enhances their reactivity and makes them suitable for catalytic applications.

• Antimicrobial Properties

Cu NPs have demonstrated potent antimicrobial activity against a wide range of microorganisms due to their ability to generate reactive oxygen species upon interaction with bacterial cell membranes. This property makes them attractive for use in antimicrobial coatings and biomedical applications.

• Optical Properties

Cu NPs exhibit unique optical properties, including surface plasmon resonance (SPR), which makes them valuable for sensing and imaging applications. The SPR effect can be tuned by controlling the size and shape of the nanoparticles, allowing for precise detection and imaging in biological systems.

Quick Selection List of Cu NPs

Catalog	Product Name
ACM11144437-2	Copper Silver Core Shell Nanoparticles Dispersion (AgCu, Purity: 99.99%, Diameter: 50nm)
ACM12018109-1	Copper Chromium Oxide Dispersion (Cu2Cr2O5, Purity: 99.9%, Diameter: 40-80nm)
ACM1317380-13	Copper Oxide Dispersion (CuO, Purity: 99.9 %, Diameter: 80nm)
ACM1317380-14	Copper Oxide Ink (CuO, Diameter: 100-130nm , Purity: 99.9%)
ACM1317380-15	Copper Oxide Nanoparticles Dispersion (CuO, Purity: 99.9 %, Diameter: 3-6nm)
ACM7440508-72	Copper Nano Dispersion (Cu, Diameter: 80-100nm, Purity: 99.9%)
ACM7440508-73	Copper Nanoparticle Dispersion (Cu, Purity: 99.9 %, Diameter: 50nm)
ACM7440508-74	Copper Nanoparticles Dispersion (Cu, Purity: 99.9%, Diameter:<80nm)
ACM7440508-75	Copper Nanoparticles Ink (Cu, Purity: 99.9 %, Diameter:<100 nm)
ACM7440508-76	Copper Nanoparticles Ink (Cu, Purity: 99.9 %, Diameter: 100-150nm, Concentration: ≥1000 ppm)
ACM7440508-77	Copper Nanoparticles Ink (Cu, Purity: 99.9 %, Diameter: 100-150nm, Concentration: 30%)
ACM7440508-78	Copper Nanoparticles Ink (Cu, Purity: 99.9 %, Diameter: 5-10nm)
ACM7440508-79	Copper Nanoparticles Ink (Cu, Purity: 99.9 %, Diameter: 80-100nm)
ACM7440508-80	Copper Suspension (Cu, Purity: >99%, Diameter:<50nm)
ACM11144437-1	Ag-Cu Alloy Nanoparticles Dispersion (Silver-Copper, Diameter: 50nm, Purity: 99.99%)
ACM11144437-3	Silver Copper Alloy Dispersion (Ag:Cu, Purity: 99.9 %, Diameter:<80nm)

Synthesis Method of Copper-based Nanomaterials

• Chemical Reduction Method

Copper-based nanoparticles are often synthesized using chemical reduction methods. The "wet chemistry" technique is a long-standing method of preparing metallic Cu NPs that involves the use of hydrazine, ascorbic acid, or sodium borohydride as reducing agents. For example, copper acetate or copper chloride can be reduced with strong reducing agents like sodium borohydride in the presence of stabilizing agents to control nanoparticle size and shape. The reaction mechanism involves the reduction of copper ions to form metallic copper nanoparticles.

Synthesis Method of Cu NPs. [1]

• Thermal Decomposition

In this method, copper precursors are thermally decomposed at high temperatures to form copper nanoparticles. The control of reaction temperature and time plays a crucial role in determining the size and properties of the nanoparticles. This technique allows for the production of monodisperse nanoparticles with controlled morphology.

• Physical Methods

Physical synthesis methods of Cu NPs, such as evaporation-condensation and laser ablation, yield nanoparticles with uniform distribution. However, these methods require expensive equipment and high energy consumption.

• Green Synthesis

Green synthesis of Cu NPs involves the use of plant extracts, fungi, or bacteria to reduce copper ions to nanoparticles. These bio-based methods are eco-friendly and sustainable, offering an alternative to conventional chemical synthesis routes. The phytochemicals present in the plant extracts act as reducing and stabilizing agents in the nanoparticle formation process.

Application of Copper-based Nanoparticles

• Cu NPs for Biomedical Applications

Cu NPs for are extensively studied for their biomedical applications, including drug delivery, cancer therapy, and imaging. Their biocompatibility and antimicrobial properties make them suitable for use in wound healing dressings, implants, and diagnostic assays.

Antibacterial nanoparticles applications. [2]

• Cu NPs for Catalysis

Cu NPs for serve as efficient catalysts in various chemical reactions due to their high surface area and unique electronic properties. They are employed in catalytic applications such as hydrogenation, oxidation, and carbon-carbon bond formation. The catalytic activity of copper nanoparticles can be enhanced by surface modification or alloying with other metals.

• Cu NPs for Environmental Remediation

Copper oxide nanoparticles are utilized for environmental remediation purposes, such as the removal of heavy metals from wastewater and the degradation of organic pollutants in water and soil. Their photocatalytic activity under visible light irradiation helps in the decomposition of organic contaminants, providing a sustainable solution for environmental cleanup.

• Cu NPs for Electronics

Cu NPs for find application in the field of electronics for the fabrication of conductive inks, printed circuit boards, and flexible electronics. Their high electrical conductivity and compatibility with printing technologies make them ideal for next-generation electronic devices, including sensors, displays, and RFID tags.

References

1. Manoj B. Gawande, et al. Chem. Rev. 2016, 116, 6, 3722–3811.
2. Michaela Corina Crisan, et al. Appl. Sci. 2022, 12(1), 141.

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