Alfa Chemistry — Empowering Innovation with Precision Nanomaterials.
Colloidal nanoparticles are ultrafine particles (1–100 nm in diameter) suspended in a liquid medium, offering unique physicochemical properties due to their high surface-area-to-volume ratio and quantum effects. At Alfa Chemistry, we specialize in delivering premium colloidal nanoparticles tailored for advanced applications in electronics, catalysis, energy storage, biomedicine, and optics. Our products are engineered with precision, ensuring exceptional purity, stability, and reproducibility to meet the rigorous demands of research and industrial applications.
Colloidal nanoparticles are tiny particles ranging from 1 to 100 nanometers dispersed uniformly within a continuous medium (usually a liquid), forming a stable colloidal system. These nanoparticles exhibit unique physical and chemical properties due to their small size and high surface area, which differ significantly from their bulk counterparts.
Customers receive an exceptional product experience through Alfa Chemistry's colloidal nanoparticle solutions.
Alfa Chemistry's colloidal nanoparticle portfolio includes four primary series.
Applications: Conductive inks, plasmonic sensors, catalysts, antimicrobial coatings.
Applications: UV filters, polishing slurries, magnetic resonance imaging (MRI), energy storage.
Applications: LED displays, solar cells, bioimaging, photodetectors.
Applications: Conductive composites, thermal interface materials, battery electrodes.
Selecting colloidal nanoparticles from Alfa Chemistry requires careful consideration of several key factors.
Our technical team delivers expert guidance in conjunction with tailored formulation solutions to meet your precise requirements.
Widely used in flexible electronics, LEDs, electrodes and solar panelsdue to their unique optoelectronic properties.
Colloidal nanoparticles serve as drug delivery vehicles, imaging agents, and in biosensing platforms. Their small size allows them to interact effectively with biological systems, enabling targeted therapies and diagnostics.
Metal oxide colloids are used to degrade pollutants and in water purification.
Quantum dots and metal oxide nanoparticles are crucial in solar cells, batteries, and fuel cells for enhanced efficiency.
Advanced synthesis and surface modification technologies ensure nanoparticles with tight size distributions and ultra-high purity (up to 99.99%).
Tailored formulations for size, solvent systems, and functional groups (-COOH, -NH₂, PEG) to meet unique application demands.
Products supported by rigorous batch testing and detailed characterization reports (TEM, SEM, DLS).
Reliable global logistics, plus options for bulk orders and industrial-grade manufacturing.
Q: Are Colloids and Nanoparticles the Same?
A: While colloids and nanoparticles are related concepts, they are not exactly the same:
Thus, colloidal nanoparticles are a subset of colloids where the dispersed particles are nanoscale in size.
Q: What advantages do colloidal quantum dots offer over bulk semiconductors?
A: CQDs have size-dependent optical and electronic properties due to quantum confinement, enabling tunable emission/absorption wavelengths and solution-based low-temperature processing.
Q: How does Alfa Chemistry ensure dispersion stability?
A: Through advanced surface modification, purification and characterization methods we produce stable monodispersed colloids which remain effective over extended shelf life and application performance.
Q: How should colloidal nanoparticles be stored?
A: Store at 4–25°C in sealed containers. Avoid freezing or prolonged exposure to light.
Q: Can I request custom nanoparticle formulations?
A: Yes! Customers can request nanoparticles that meet their specifications through size adjustment, surface treatment, and solvent system selection. Contact our technical team for specifications.
Q: How long can you store your dispersions before they expire?
A: Typically 6–12 months under recommended storage conditions. You can request stability data sheets from our team.
(Dr. Bing Ma, et al. 2024)Dr. Bing Ma et al. demonstrated the preparation of core-shell structured single crystal zeolites containing Fe3O4 colloidal cores by a new restricted step-by-step crystallization method. The representative Fe3O4@silicalite-1-S zeolite exhibits superparamagnetism of 14emu/g and a high surface area of about 365 m2/g. The magnetite Fe3O4 core is about 150nm in diameter and is located at the center of the zeolite single crystal, with dimensions of about 800×600×400nm. This material has been effectively used for ethanol dehydration in a magnetically stabilized bed (MSB) reactor, providing excellent conversion (98%), the highest ethylene selectivity (98%), and excellent catalytic durability (over 100 hours). [1]
For tailored solutions or technical queries, just contact us!
Reference
Partner With Alfa Chemistry
Contact UsPrivacy Policy | Cookie Policy | Copyright © 2025 Alfa Chemistry. All rights reserved. Home | Terms & Conditions
