• USA Home
  • 797901 - Ultrastable fluorescent silica nanobeads

797901 Sigma-Aldrich

Ultrastable fluorescent silica nanobeads

25 nm, lyophilized

Synonym: Fluorescent beads, Fluorescent nanoparticles, Silica nanoparticles

  • Linear Formula SiO2

  • Molecular Weight 60.08

  •  NACRES NA.23



Related Categories 14: Si, Biomedical Materials, Materials Science, Nanomaterials, Nanoparticles: Materials by Application,
Quality Level   100
form   powder
particle size   25 nm
fluorescence   λem 590 nm
UV absorption   λ: 570 nm Amax
storage temp.   2-8°C



The use of labeling or staining agents has greatly assisted the study of complex biological interactions in biology and the fluorescent labeling of biomolecules has been demonstrated as an indispensable tool in many biological studies. By virtue of excellent fluorescence properties the silica nanobeads find application in biological labeling; bioimaging; biosensing etc. Ultrastable particles exhibit a very high resistance to photobleaching and can be used in single-particle imaging as well as in super resolution techniques such as stimulated emission depletion (STED) microscopy.

Safety & Documentation

Safety Information

NONH for all modes of transport


Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles


Fluorescent Silica Nanobeads: Properties and Applications

Fluorescent nanobeads offer great potential for many applications in both basic and applied research. In the recent past, scientists have been offered a wide range of technical solutions in fluoresce...
Maria Ada Malvindi, Gabriele Maiorano, and Pier Paolo Pompa
Center for Bio-Molecular Nanotechnology, Italian Institute of Technology (IIT) Via Barsanti - 73010 Arnesano (Lecce), Italy
Keywords: Biological processes, Cancer, Confocal microscopy, Diagnostic, Diffraction, Flow cytometry, Materials Science, Microscopy, Research areas

Micro- and Nanofabricated Biomaterials for the Study of Cells and Microtissues

Phin Peng Lee, Karen E. Samy, Miquella G. Chavez, Alec Cerchiari, Tejal A. Desai* Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA 9415...
Keywords: Absorption, Adhesion, Amplification, Apoptosis, Biomaterials, Cancer, Cell culture, Cell proliferation, Diffusion, Immobilization, Indicators, Infrared spectroscopy, Ligands, Magnetic resonance imaging, Materials Science, Microscopy, Molecular biology, Nanotechnology, Semiconductor, Solvents

Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?