100-200 nm polystyrene beads filled with a NIR-II dye, useful for a wide range of applications including NIR-II lateral flow assays and NIR-II microscopy calibration standards. The beads emit brightly in the 800-1400 nm range under 785nm and 808nm laser excitations or 740 nm LED. The NIR-II Beads contain COOH functional groups at the surface for bio-conjugation.

Research Use Only

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