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CPN680 Red

CPN680 Red (Ex-Max 396 nm/Em-Max 675 nm)

CPN680 Red from Stream Bio is a conjugated polymer nanoparticle with optical properties similar to Qdot nanocrystals, with optimal excitation in the UV around 325-355nm. Excitation efficiency decreases with longer wavelength excitation energy, however this means that they can be excited by multiple wavlengths. CPNs have a very high exctinction coefficient, ranging from CPNs are around 70-80 nm in size and are sold in various surface modifications including, -COOH, Streptavidin bioconjugated, EDC/ NHS, maleimide, alkene and click chemistries. In addition, CPNs contain iron oxide and are able to be analyzed by MRI.

Excitation & emission spectra

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Key facts

Excitation maximum
396 nm
Emission maximum
675 nm
Optimal laser line
355/405
Optimal filter
670/30
Relative brightness
3 of 5

CPN680 Red has an excitation maximum at 396 nm and an emission maximum at 675 nm, a Stokes shift of 279 nm. It is optimally excited by the 355/405 laser line.

Frequently asked questions

What is CPN680 Red?
CPN680 Red from Stream Bio is a conjugated polymer nanoparticle with optical properties similar to Qdot nanocrystals, with optimal excitation in the UV around 325-355nm. Excitation efficiency decreases with longer wavelength excitation energy, however this means that they can be excited by multiple wavlengths. CPNs have a very high exctinction coefficient, ranging from CPNs are around 70-80 nm in size and are sold in various surface modifications including, -COOH, Streptavidin bioconjugated, EDC/ NHS, maleimide, alkene and click chemistries. In addition, CPNs contain iron oxide and are able to be analyzed by MRI.
What laser excites CPN680 Red?
CPN680 Red is optimally excited by the 355/405 laser line. Its excitation maximum is 396 nm.
What filter should I use to detect CPN680 Red?
A 670/30 filter captures the peak of the CPN680 Red emission near 675 nm with minimal spillover.
How bright is CPN680 Red?
CPN680 Red has a relative brightness of 3 out of 5.