Oxidase method for glucose determination using long-period grating waveguide

Photonic Crystal Waveguide Biosensor

“…7 we demonstrated an ability to determine glucose concentration within the range of 1À36 g/100 mL interval using chirped PCW with big grating period. It was shown that, one can obtain a spectral response to glucose concentration increase in liquid by¯lling up the internal channels of the PCW with analyzed medium and capturing its transmission spectrum.…”

“…1 The selective detection of antibodies in a PCW was also realized. 1,6 Recent experiments provided by our research group 1,6,7 revealed that position of photonic bandgap of a hollow PCW are largely a®ected by the refractive index (RI) of the medium,¯lling the space in the hollow core and the channels of the cladding. The RI change induces a predictable transformation of PCW transmission spectrum.…”

“…The RI change induces a predictable transformation of PCW transmission spectrum. 1,6,7 The RI n c of a medium inside a hollow core determines the wavelengths of high transmission of the optical radiation through the waveguide. Transmission bands are shifting to shorter wavelengths as RI increases.…”

Photonic crystal fibers for food quality analysis

“…Earlier in [8] we demonstrated an ability to determine glucose concentration within 1-36 g/100mL interval using chirped photonic crystal fibers with big grating period. It was shown, that one can obtain a spectral response to glucose concentration increase in liquid medium by filling up the internal channels of the PCF with analyzed medium and capturing its transmission spectrum.…”