Abstract:
This disclosure provides methods and devices for the label-free detection of target molecules of interest. The principles of the disclosure are particularly applicable to the detection of biological molecules (e.g., DNA, RNA, and protein) using standard SiO 2 -based microarray technology.
Abstract:
An assay system having a channel (16) bounded by first and second reflective surfaces (14, 15) adapted to accommodate a fluid material therebetween and defining a plurality of regions in an array between those surfaces.
Abstract:
A viewing enhancement lens (18 - NAIL) which functions to increase the numerical aperture or light gathering or focusing power of viewing optics such as a microscope (26) used to view structure within a substrate such as a semiconductor wafer or chip or of imaging optics such as media recorders. The result is to increase the resolution of the system by a factor of between n, and n , where n is the index of refraction of the lens substrate.
Abstract:
A spectral reflectance imaging device (100) for detecting biomolecular targets (126) includes an illumination source (101) that illuminates a substrate (122) with a plurality of separate wavelengths of incoherent light. The substrate includes an oxide layer (124) and a binding agent to selectively bind biomolecular targets to the substrate. An imaging device (130) captures the light reflected from or transmitted through the substrate and an image processing system (140) detects the biomolecular targets a function of the change in reflective properties of the substrate.
Abstract:
A spectral reflectance imaging device for detecting biomolecular targets includes an illumination source that illuminates a substrate with a plurality of separate wavelengths of incoherent light. The substrate includes an oxide layer and a binding agent to selectively bind biomolecular targets to the substrate. An imaging device captures the light reflected from or transmitted through the substrate and an image processing system detects the biomolecular targets a function of the change in reflective properties of the substrate.
Abstract:
An assay system having a channel (16) bounded by first and second reflective surfaces (14, 15) adapted to accommodate a fluid material therebetween and defining a plurality of regions in an array between those surfaces.
Abstract:
This disclosure provides methods and devices for the label-free detection of target molecules of interest. The principles of the disclosure are particularly applicable to the detection of biological molecules (e.g., DNA, RNA, and protein) using standard SiO2-based microarray technology.
Abstract:
An assay system having a channel bounded by first and second reflective surfaces adapted to accommodate a fluid material therebetween and defining a plurality of regions in an array between those surfaces with each region defining a resonant cavity and adapted to receive a capturing material on a surface thereof whereby a source of radiation illuminates each region to provide a standing wave of radiation of within the cavity indicative of binding of said capturing agent to material under investigation, a binding thereof being detected in response to radiation from each cavity indicative of a change in the standing wave pattern.
Abstract:
A method and apparatus for performing optical microscopy in one to three dimensions employs a spectral self-interference fluorescent microscopy technique that includes providing at least one fluorescent microscopy sample (220a, 220b), at least one objective lens (201), and a reflecting surface (204). The fluorescent sample is disposed between the objective lens and the reflecting surface, the distance (d1, d2) from the sample to the reflecting surface is several to several tens times an excitation wavelength. Excitation light (216) causes the fluorescent sample to emit light (214), at least a portion (214b) of which is reflected by the reflecting surface. The objective lens collects both the reflected light and the light emitted directly by the fluorescent sample (214a). The direct and reflected light interferences causing spectral oscillations in the emission spectrum. The periodicity and the peak wavelengths of the emission spectrum are then spectroscopically analyzed to determine the optical path length between the fluorescent sample and the reflecting surface.
Abstract:
A method and apparatus for performing optical microscopy in one to three dimensions employs a spectral self-interference fluorescent microscopy technique that includes providing at least one fluorescent microscopy sample (220a, 220b), at least one objective lens (201), and a reflecting surface (204). The fluorescent sample is disposed between the objective lens and the reflecting surface, the distance (d1, d2) from the sample to the reflecting surface is several to several tens times an excitation wavelength. Excitation light (216) causes the fluorescent sample to emit light (214), at least a portion (214b) of which is reflected by the reflecting surface. The objective lens collects both the reflected light and the light emitted directly by the fluorescent sample (214a). The direct and reflected light interferences causing spectral oscillations in the emission spectrum. The periodicity and the peak wavelengths of the emission spectrum are then spectroscopically analyzed to determine the optical path length between the fluorescent sample and the reflecting surface.