Abstract:
An optical monitoring subsystem includes: a differential interference contrast (DIC) optical-path apparatus having a CCD camera and enclosed in a gas-tight housing stored in an incubator and a three-dimension electric driving device operatively moving along three axes of three-dimension coordinates for conveniently observing, monitoring or photographing cells in a cell specimen placed in a concave platform as recessed in the gas-tight housing, and a control device operatively controlling the free movement of the DIC optical-path apparatus; whereby the cells may be directly observed or monitored in-situ in the incubator in a three-dimensional way.
Abstract:
This invention proposes a novel technique for fabricating a gelatin micro pattern for cell culture. The gelatin micro pattern is formed by photolithography and then crosslinked with a crosslinking agent such as glutaraldehyde. The gelatin micro pattern can be used as an excellent cell culture platform for in-vitro observations of a certain cluster of living cells or even a single living cell.
Abstract:
A method of manufacturing a nanoparticle chain is disclosed. The method comprises the steps of: providing a single-stranded circular primer with a determined length, and amplifying the single-stranded circular primer into single-stranded DNA nanotemplate by an isothermal nucleotide amplification reaction such that an end of the single-stranded DNA nanotemplate is fixed to a surface of a substrate; and adding a single-stranded DNA probe conjugated with nanoparticle at one end of which, and attaching the single-stranded DNA probe to the corresponding sequence on the single-stranded DNA nanotemplate to form a nanoparticles chain. The method of manufacturing a nanoparticle chain further comprises providing a fluid, and the flowing direction of the fluid controls the aligning direction of the nanoparticle chain. Wherein, the inter-nanoparticle distance of the nanoparticle chain can be adjusted by adjusting a reaction temperature or adding the single-stranded DNA probe without conjugating with nanoparticles.
Abstract:
A method of manufacturing a nanoparticle chain is disclosed. The method comprises the steps of: providing a single-stranded circular primer with a determined length, and amplifying the single-stranded circular primer into single-stranded DNA nanotemplate by an isothermal nucleotide amplification reaction such that an end of the single-stranded DNA nanotemplate is fixed to a surface of a substrate; and adding a single-stranded DNA probe conjugated with nanoparticle at one end of which, and attaching the single-stranded DNA probe to the corresponding sequence on the single-stranded DNA nanotemplate to form a nanoparticles chain. The method of manufacturing a nanoparticle chain further comprises providing a fluid, and the flowing direction of the fluid controls the aligning direction of the nanoparticle chain. Wherein, the inter-nanoparticle distance of the nanoparticle chain can be adjusted by adjusting a reaction temperature or adding the single-stranded DNA probe without conjugating with nanoparticles.