Nanoparticles for your purpose

CANdots® is a registered trademark from the Center for Applied Nanotechnology (CAN) GmbH. This page summarizes the variety of nanoparticles produced from CAN and sold under this label. You can review more specific information by clicking on each link. For information on buying our fluorescent nanoparticles, please click here.

Quantum Dots

Fluorescent Quantum Dots - CANdots Series A

CANdots® Series A - Quantum Dots with emission in the visible range

These semiconductor nanoparticles are based on CdSe and available as core only or advanced and more stable core/shell/shell system. The emission ranges from 525 to 625 nm with an guaranteed FWHM below 40 nm and quantum efficiency up to above 40%. This product is generally soluble in unpolar organic media and is delivered having a concentration of 5 mg/mL of inorganic material. While the core particles are applicable in research and development of solar cells, the more stable core/shell/shell product can be used in demanding fields like light emitting devices, lasers or - after transfer into aqueous media - life science.

Superbright QuantumDots - CANdots Series A plus

CANdots® Series A plus - Superbright Quantum Dots

Our newest development on Quantum Dots arised from morphologically optimizing the particle structure. This resulted in elongated core/shell particles featuring an intense brightness, increased stability and processability while keeping the FWHM below 35 nm and the quantum efficiency above 60%. They are available with an emission maximum of 560, 590 and 620 nm, respectively. Coming in unpolar organic solution, they are readily available for use in demanding applications like two-photon spectroscopy, solid state lighting, displays, lasers or - after transfer into aqueous media - life science.

Lead sulfide Quantum Dots - CANdots Series C

CANdots® Series C - Lead sulfide Quantum Dots with emission in the IR

These semiconductor nanocrystals have an emission covering the NIR/IR range from 1000 to 1600 nm. A continuous production process ensures an enhanced reproducibility, smaller FWHM of less than 180 nm and the ease of scale-up. The production amount can be adjusted easily up to tens of grams per week with the current system. Our CANdots® Series C come in unpolar organic solution with a concentration of 10 mg/mL inorganic material and are readily applicable to solar cell, emitter or LED research.

Gold Nanoparticles

Plasmonic Gold Nanoparticles

CANdots® Series G - Plasmonic nanoparticles for biological use

These gold nanoparticles are stabilized with citrate and are produced as standard products with diameters of 20, 40, 60 or 80 nm, respectively. They feature an extremely high extinction coefficient, a small size distribution and an ease of biofunctionalization. Dissolved and stabilized in aqueous solution, these plasmonic nanoparticles are ideal for optical read-out in applications in the visible wavelength range, coatings or bio-conjugation.

Magnetic Nanoparticles

Magnetic Iron Oxide Nanoparticles

CANdots® Series M - Iron oxide nanocrystals for technical/biological use

Our standard magnetic nanoparticles consist of iron oxide in different sizes: 4, 12 and 20 nm. They have a spherical shape and a small size distribution. Coming in unpolar organic or aqueous media, these particles are suitable for all applications where homogeneously dispersed particles with superparamagnetic behavior are needed.
Other magnetic materials like gadolinium vanadates are available on request.

Fluorescent Rare-Earth Doped Nanoparticles

Fluorescent Nanoparticles - Rare-Earth doped Dots

CANdots® Series X - Fluorescent Nanoparticles for preparation of colorless inks

These rare-earth doped nanodots have distinctive emission features. The material consists of an inorganic host lattice (bariumsulfate or lanthanphosphate, among others), which is doped with one or more rare-earth elements (e.g. Eu) determining their emissive characteristics. This material is available in the emission colors blue, green, yellow and red and we're currently establishing facilities for IR-emitting and up-conversion materials as well. Sold in solid form or as a dispersion (e. g. water) , these nanocrystals can be easily processed as colorless ink or coating and therefore be applied as taggant or security label.

CAN GmbH benefits in their well organized R&D projects from many years of research experience and can therefore efficiently contribute to the process of problem-solving. In cooperation with our customers we create technical specifications for material, syntheses and desired characteristics. The development and production of tailor-made nanoparticles or polymers are our expertise and we are also seeking partners for further improvement of our patent-pending continuous flow process for the production of semiconductor nanoparticles. If you want to know more specific details about what we can do and offer, please feel free to contact us directly under

CAN GmbH - Grindelallee 117 - 20146 Hamburg - Germany Company (engl)
Company (de)