# NIR Spectra Beads

**URL:** <https://forum.microlist.org/t/nir-spectra-beads/3107>\
**Category:** Probes & Prep\
**Created:** [May 9, 2025, 3:06pm UTC](https://forum.microlist.org/t/nir-spectra-beads/3107 "2025-05-09T15:06:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![edelaserna](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.microlist.org/edelaserna/32/1190_2.png) [@edelaserna](https://forum.microlist.org/u/edelaserna)\
**Post date:** [May 9, 2025, 3:06pm UTC](https://forum.microlist.org/t/nir-spectra-beads/3107/1 "2025-05-09T15:06:50Z")

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Hi µforum!

I am curious if anyone has a favorite near infrared (e.g., similar spectra to Cy7 or AlexaFluor 750) fluorescent bead option for imaging on the various point-scanning confocal setups that have the NIR laser/detection schemes.

So far in my search I have come across the Invitrogen FluoSpheres Carboxylate-Modified Microspheres (Cat No F8799) 715 nm ex/750 nm em 100 nm beads. Has anyone tried out these beads before?

Thanks in advance! 😃