Abstract:
Systems and methods described herein employ multiple phase-contrast images with various relative phase shifts between light diffracted by a sample and light not diffracted by the sample to produce a quantitative phase image. The produced quantitative phase image may have sufficient contrast for label-free auto-segmentation of cell bodies and nuclei.
Abstract:
The invention comprises a novel combination of microwave and photonic packaging to arrive a compact, self contained MZI modulator. The nature of the NLO polymer, that is, its large electro-optic coefficient reduces the drive requirements for the integrated power amplifier (202), allowing a small to medium power amplifier to be used. Microwave high density interconnect (HDI) pakcaging techniques allow the medium power amplifier to be fabricated into a small assembly, which can be mounted directly to the MZI substrate. The integrated amplifier and modulator provides a significant reduced size and lower power, and high bandwidth advantage when compared with existing devices based on inorganic materials.
Abstract:
The invention comprises a novel combination of microwave and photonic packaging to arrive at compact, self contained MZI modulator. The nature of the NLO polymer, that is, its large electro-optic coefficient reduces the drive requirements for the integrated power amplifier, allowing a small to medium power amplifier to be used. Microwave high density interconnect (HDI) packaging techniques allow the medium power amplifier to be fabricated into a small assembly, which can be mounted directly to the MZI substrate. The integrated amplifier and modulator provides a significant reduced size and lower power, and high bandwidth advantage when compared with existing devices based on inorganic materials.
Abstract:
A method and an apparatus for locating one or more substantially circular-shaped tissue sample positioned on a solid support are disclosed. The method involves the steps of transmitting light of a preselected wavelength onto a tissue sample, wherein the light induces the tissue sample to autofluoresce, identifying the center location of the tissue sample using the autofluoresced light, correlating the coordinates of the center location of the tissue sample on the solid support using an x, y-coordinate system, and mapping the coordinates of the tissue sample on the solid support to differentiate tissue sample containing regions from blank regions on the solid support. In a second aspect, the invention provides an apparatus for locating one or more substantially circular-shaped tissue sample positioned on a solid support
Abstract:
The invention provides method for locating one or more substantially circular-shaped tissue sample positioned on a solid support. The method involves the steps of transmitting light of a preselected wavelength onto a tissue sample, wherein the light induces the tissue sample to autofluoresce, identifying the center location of the tissue sample using the autofluoresced light, correlating the coordinates of the center location of the tissue sample on the solid support using an x, y-coordinate system, and mapping the coordinates of the tissue sample on the solid support to differentiate tissue sample containing regions from blank regions on the solid support. In a second aspect, the invention provides an apparatus for locating one or more substantially circular-shaped tissue sample positioned on a solid support.
Abstract:
Un método para sondear dianas múltiples en una muestra biológica que comprende una sección de tejido, método que comprende: (a) proporcionar una sección de tejido que contiene múltiples dianas; (b) unir al menos una sonda de anticuerpo marcada con fluoróforo a una o más dianas presentes en la sección de tejido; (c) unir al menos una sonda de control a una o más dianas presentes en la sección de tejido; (d) detectar al menos una señal procedente de al menos una sonda de anticuerpo marcada con fluoróforo unida en la etapa (b) y detectar al menos una señal de control procedente de al menos una sonda de control unida en la etapa (c); (e) aplicar a la muestra de la etapa (d) una disolución que comprende un agente oxidante que desactiva selectivamente la(s) marca(s) de fluoróforo(s) de al menos una sonda de anticuerpo marcada con fluoróforo y no la(s) sonda(s) de control; (f) unir al menos una sonda de anticuerpo marcada con fluoróforo a una o más dianas presentes en la muestra tras la etapa (e); y (g) detectar al menos una señal procedente de al menos una sonda de anticuerpo marcada con fluoróforo unida en la etapa (f).