CellMosaic Announces Fluorescent Dye Based Product Line with Five Innovative Dye Conjugates

CellMosaic Announces Fluorescent Dye Based Product Line with Five Innovative Dye Conjugates

Posted by Kathryn Rodriguez on 23rd Mar 2025

At CellMosaic®, we are committed to advancing scientific research by providing innovative bioconjugates that empower scientists to drive discoveries. We are excited to be working with both small molecule and protein dyes to provide a wide range of conjugates for our customer’s unique research needs. 

Small Molecule Dye Conjugates: NIR Dye-Polysucrose-400 Conjugates.

Our new near-infrared (NIR) dye-polysucrose-400 conjugates are designed with stable linkages for enhanced performance in permeability studies, cell tracking, drug delivery research, and tissue engineering.

  • CM62106 – Cyanine 5.5 Polysucrose-400 (Excitation: 675 nm / Emission: 694 nm)
  • CM62105 – Cyanine 7 Polysucrose-400 (Excitation: 750 nm / Emission: 773 nm)

Key Features & Benefits:

  • Ready-to-use lyophilized powder – Simply reconstitute with water or aqueous buffers.
  • Highly Water-soluble – Easily dissolves in aqueous solutions for seamless integration into various experimental workflows.
  • Stable dye conjugation – Ensures minimal dye dissociation.
  • High purity – No detectable free dye, verified by SEC HPLC (≥99% purity).
  • Optimized molecular weight – Polysucrose 400 has a molecular weight range of 300,000–550,000 g/mol.

Protein Dye Conjugates - R-Phycoerythrin (PE)-Streptavidin Conjugates

Introducing our fluorescent biotin detection reagents, featuring varying degrees of labeling to meet diverse assay requirements:

  • CM54201 R-Phycoerythrin (PE)-Streptavidin (1:1) Conjugate
  • CM54202 R-Phycoerythrin (PE)-Streptavidin (1:2) Conjugate
  • CM54203 R-Phycoerythrin (PE)-Streptavidin HL Conjugate

Why Choose R-Phycoerythrin (PE)?

R-PE is a bright red-orange (Excitation: 565 nm / Emission: 576 nm), fluorescent dye that when conjugated, often provides 5 to 10 times greater sensitivity when compared to fluorescein labeled conjugates. 

What sets our R-PE-Streptavidin conjugates apart?

  • Retention of Biotin Binding Activity – Featuring a 29-atom-long, flexible PEG/Ethylene linker, these conjugates preserve streptavidin’s biotin-binding efficiency.
  • Versatile Applications – Ideal for fluorescence-based assays, including
    • Flow Cytometry
    •  ELISAs
    •  Microarrays

Explore the latest in fluorescent detection and elevate your research with CellMosaic®.