Publication

Microchip comprising transparent hydrocarbon-based polymer

2003
Patents

Abstract

PROBLEM TO BE SOLVED: To provide a microchip made of a resin with a microchannel with a channel sealed by an upper substrate which is transparent and absorbs little in ultraviolet region, is minute and has satisfactory surface smoothness, and is high in dimension accuracy. ;SOLUTION: The microchip for optically measuring a liquid sample has at least both a lower substrate with the microchannel through which the liquid sample flows and the upper substrate made of a flat film. At least the lower substrate is made of a transparent hydrocarbon-based polymer expressed by Fig. (1). At least the surface of the lower substrate on the side with the channel is treated with oxygen plasma, and then the lower substrate and the upper substrate are subjected to thermocompression bonding at temperatures lower than the glass-transition temperature (Tg) of the transparent hydrocarbon-based polymer to obtain the microchip. ;COPYRIGHT: (C)2003,JPO

Official source

https://infoscience.epfl.ch/entities/publication/769240e1-8ffa-4eff-9a63-55b0fe75cb28

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2003
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/769240e1-8ffa-4eff-9a63-55b0fe75cb28

About this result

Related concepts (32)

Polymer

A polymer (ˈpɒlᵻmər; Greek poly-, "many" + -mer, "part") is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function.

Liquid crystal

Liquid crystal (LC) is a state of matter whose properties are between those of conventional liquids and those of solid crystals. For example, a liquid crystal may flow like a liquid, but its molecules may be oriented in a crystal-like way. There are many types of LC phases, which can be distinguished by their optical properties (such as textures). The contrasting textures arise due to molecules within one area of material ("domain") being oriented in the same direction but different areas having different orientations.

Glass transition

The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased. An amorphous solid that exhibits a glass transition is called a glass. The reverse transition, achieved by supercooling a viscous liquid into the glass state, is called vitrification.

Related publications (7)

Microchip comprising transparent hydrocarbon-based polymer

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