US 8,771,612 B2 · Photoresponsive gas-generating material, micropump and microfluid device

Abstract

The present invention provides a photoresponsive gas-generating material that is to be used in a micropump of a microfluid device having fine channels formed therein, and is capable of effectively generating gases for transporting a microfluid in response to light irradiation and transporting the microfluid at an improved transport efficiency. The present invention also provides a micropump incorporating the photoresponsive gas-generating material. A photoresponsive gas-generating material 13 is to be used in a micropump having fine channels formed in a substrate, and comprises a photo-sensitive acid-generating agent and an acid-sensitive gas-generating agent, and a micropump 10 has the photoresponsive gas-generating material 13 housed therein.

Claims12

Dependent claims

A photoresponsive gas-generating material in a micropump of a microfluid device having a fine channel formed in a substrate, comprising:

at least one photo-sensitive base-generating agent (A) selected from the group consisting of cobalt amine complexes, o-nitrobenzyl carbamate, oxime esters, carbamoyloxy imino group-containing compounds capable of generating an amine in response to light irradiation and represented by formula (1):
wherein R1 represents an n-valent organic group;
R2 and R3 individually represent a hydrogen, an aromatic group, or an aliphatic group, and may be the same as or different from each other;
and n is an integer of 1 or more, and
salts of carboxylic acids (al) represented by formula (2) and basic compounds (a2);
and
a base multiplier (B)

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/920,884Filed 11 Mar 2009

Priority

JP 2008-06129011 Mar 2008

Published

US 2011/0014096 A120 Jan 2011

Granted

8 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

B01L 3/50273
By integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g.…
F04B 19/006
Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00: micropumps
B01L 2300/0887
Geometry, shape and general structure: laminated structure
B01L 2400/046
Specific forces: chemical or electrochemical formation of bubbles

Photoresponsive gas-generating material, micropump and microfluid device

Life of this patent

Photoresponsive gas-generating material, micropump and microfluid device

Life of this patent

Abstract

Claims12