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Millipore Technical Publications

PB4662EN00EM_EMD.pdfPB4662EN00EM_EMD.pdf
BR- PB4662EN00EM

Estapor® Fluorescent Microspheres

A critical raw material for the manufacture of IVD and life sciences reagents

Lit No:PB4662EN00EM
Year:2012


EMD Millipore’s photostable fluorescent microspheres have been specifically developed and patented by Estapor®. Made in polystyrene (PS) or in polyvinyltoluene (PVT), our fluorescent microspheres are monodisperse and uniform, ranging in size from 20 nm to 4 μm. Our fluorescent products are also available as plain or functionalized microspheres (COOH, NH2, CH2Cl...). To prevent dyes leaching and to provide the maximum of active surface, the fluorescent dyes are physically and irreversibly entrapped inside the microspheres.

Preparation of our fluorescent microspheres comprising:
  • Swelling the polymeric microsphere so that fluorescent dyes may enter the microspheres pores.
  • Unswelling the poIymeric microspheres so that the fluorescent dyes become physically entrapped in the pores.

Click the PDF above for the full document.