CANdot Series AFluorescent nanoparticles for the field of material science

Fluorescent particles for VIS-field

The nanoparticles within our CANdot ®Series A range are highly suitable for applications with increased requirements on the fluorescent dye. They exhibit the following advantages over common dyes:
  • Tunable emission in the VIS (500 to 625 nm)by varying the particle diameter possible
  • Narrow fluorescence band due to small size distribution of the particles
  • High quantum yields
  • Superior stability against heat or exposure to light
  • Homogeneous dispersions in nonpolar media like toluene or hexane, phase transfer to aqueous media possible
  • Functionalisation with affinity molecules of the watersoluble particles possible
  • Multiplexing with different emission colors due to simultaneous excitation of the nanoparticles possible

To fulfill the needs of many different applications our CANdot ® Series A (plus) range is available in 3 different varieties: Core, Core/Shell and Core/Shell/Shell.

Series A Core: These particles are the basic version in our Series A range. They consist of a crystalline CdSe core stabilized by organic ligands on their surface so that they form a homogeneous dispersion in hexane. They can be used as light absorbers in solar cells or as a cheap alternative to the Core/shell and the Core/Shell/Shell particles. They are not suitable for phase transfer into aqeous media.

Series A Core/Shell/Shell: Due to the special combination of CdSe as a core material surrounded by ZnSe as a first and ZnS as a second shell, these kind of particles show a further increase in quantum yields and stability combined with a reduction of toxicity. Therefore these particles are extremely interesting for biomedical research. They can be bought as a dispersion in hexane while a later phase transfer into aqueous media is possible.

Series A plus Core/Shell: Our newest addition to the Series A range combines highest quantum yields (above 75 %) and large absorption cross sections for a maximum of fluorescence intensity. They are extremely suitable for the detection of already tiny amounts of new techniques like 2-photon spectroscopy. Possible emission wavelengths and prices are available upon request.

Dr. Jan Niehaus

Dr. Jan Niehaus

Dr. Christoph Gimmler

Dr. Christoph Gimmler

For order or any inquiries please feel free to contact us under


Buy a set of our CANdots nanoparticles directly online. Pricelist

Strem Chemicals, Inc.