Biosensing Instrument, Inc.

Nguyen Ly

Tianwei Jing

A system in an embodiment can comprise an optical assembly, an surface-plasmon-resonance (SPR) light source, and an SPR camera. The optical assembly can comprise a hemispherical prism comprising a top surface configured to support a SPR sensor; and a high numerical aperture (NA) lens located distal from the top surface of the hemispherical prism. The SPR light source can be configured to emit a light beam for SPR imaging. The SPR camera can be configured to capture an SPR image. The SPR sensor further can comprise a surface configured to contact a sample. The high NA lens can be configured to refract the light beam toward the hemispherical prism. The hemispherical prism can be configured to collimate the light beam, as refracted by the high NA lens, toward the SPR sensor. The high NA lens further can be configured to receive and refract the light beam toward the SPR camera, after the light beam is reflected by the surface of the SPR sensor. Other embodiments are disclosed.

Surface plasmon resonance imaging system and method for measuring molecular interactions

A system in an embodiment can comprise an optical assembly, an SPR light source, and an SPR camera. The optical assembly in this embodiment can comprise a hemispherical prism comprising a planar top surface configured to support a surface-plasmon-resonance (SPR) sensor; a high numerical aperture (NA) lens; and a housing configured to mount the hemispherical prism and the high NA lens the such that the high NA lens is located distal from the planar top surface of the hemispherical prism. The SPR light source in this embodiment can be configured to emit a low-coherent monochromatic light beam for SPR imaging toward the high NA lens. The SPR camera in this embodiment can be configured to capture an SPR image formed after the low-coherent monochromatic light beam is incident upon and reflected by a metal-coated sample contacting surface of the SPR sensor. Additionally, the high NA lens in this embodiment can be configured to refract the low-coherent monochromatic light beam from the SPR light source toward the hemispherical prism; and the hemispherical prism can be configured to collimate the low-coherent monochromatic light beam, as refracted by the high NA lens, toward the SPR sensor. Other embodiments are disclosed.

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Tempe, AZ, United States of America

Nguyen Ly