- Photonic crystal borax competitive binding carbohydrate sensing motif.
Photonic crystal borax competitive binding carbohydrate sensing motif.
The Analyst (2009-04-22)
Qingzhou Cui, Michelle M Ward Muscatello, Sanford A Asher
PMID19381378
ABSTRAKT
We developed a photonic crystal sensing method for diol containing species such as carbohydrates based on a poly(vinyl alcohol) (PVA) hydrogel containing an embedded crystalline colloidal array (CCA). The polymerized CCA (PCCA) diffracts visible light. We show that in the presence of borax the diffraction wavelength shifts as the concentration of glucose changes. The diffraction shifts result from the competitive binding of glucose to borate, which reduces the concentration of borate bound to the PVA diols.
MATERIAŁY
Numer produktu
Marka
Opis produktu
Sigma-Aldrich
Sodium tetraborate decahydrate, puriss. p.a., ACS reagent, reag. ISO, buffer substance, ≥99.5%