摘要:
The present invention utilizes a plurality of spectroscopic systems and methods to measure characteristics of tissue useful in the diagnosis of disease. In a preferred embodiment, a combination of fluorescence, reflectance and light scattered spectra can be measured and processed to provide biochemical, architectural and morphological state of tissue. The methods and systems can be used particularly in the early detection of carcinoma within tissue in vivo and in vitro.
摘要:
A method of manufacturing a nanopatterned biophotonic structure includes forming a customized nanopattern mask on a substrate using E-beam lithography, providing a biopolymer matrix solution, depositing the biopolymer matrix solution on the substrate, and drying the biopolymer matrix solution to form a solidified biopolymer film. A surface of the film is formed with the nanopattern mask, or a nanopattern is machined directly on a surface of the film using E-beam lithograpy such that the biopolymer film exhibits a spectral signature corresponding to the E-beam lithograpy nanopattern. The resulting bio-compatible nanopatterned biophotonic structures may be made from silk, may be biodegradable, and may be bio-sensing devices. The biophotonic structures may employ nanopatterned masks based on non-periodic photonic lattices, and the biophotonic structures may be designed with specific spectral signatures for use in probing biological substances, including displaying optical activity in the form of opalescence.
摘要:
The present invention provides methods and systems for performing in-vivo flow cytometry to obtain desired information regarding one or more cell types of interest flowing through a subject's circulatory system. In one embodiment of the invention, a portion of the subject's circulating blood is illuminated with radiation having multiple wavelength components, and the backscattered radiation generated in response to the excitation radiation is detected at a plurality of scattering angles and analyzed to derive the desired information.
摘要:
The present invention provides methods and systems for performing in-vivo flow cytometry to obtain desired information regarding one or more cell types of interest flowing through a subject's circulatory system. In one embodiment of the invention, a portion of the subject's circulating blood is illuminated with radiation having multiple wavelength components, and the backscattered radiation generated in response to the excitation radiation is detected at a plurality of scattering angles and analyzed to derive the desired information.
摘要:
A method for operating a confocal microscope system includes deflecting a light beam on a specimen with at least one beam deflection device. The position of the light beam is stepped with at least one beam deflection device across the specimen. A sample of emitted fluorescent light from the specimen is captured in synchronization with each of the stepped positions of the light beam. An image is obtained from the captured samples of emitted fluorescent light.