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Miniaturized thermal biosensors

Hedberg, U. ; Xie, B. LU and Danielsson, B. LU (1996) In Advances in Molecular and Cell Biology 15. p.499-505
Abstract
A summary of our efforts to develop miniaturized biosensors based on the enzyme thermistor is presented. Three constructions are described. The work focuses on the measurement of glucose in whole blood.

The first biosensor was used to analyze concentrated and tenfold diluted blood samples. The glucose concentration obtained using this construction correlated well with the reference method.

Using the second biosensor, the response time could be reduced from 3 minutes down to 30 seconds using a sample volume of 1 μl. The relative standard deviation for 100 blood samples (3.8 tnM) was 3.7%.

Micromachining technology was used to construct the third thermal biosensor on a silicon chip. Enzymes were immobilized... (More)
A summary of our efforts to develop miniaturized biosensors based on the enzyme thermistor is presented. Three constructions are described. The work focuses on the measurement of glucose in whole blood.

The first biosensor was used to analyze concentrated and tenfold diluted blood samples. The glucose concentration obtained using this construction correlated well with the reference method.

Using the second biosensor, the response time could be reduced from 3 minutes down to 30 seconds using a sample volume of 1 μl. The relative standard deviation for 100 blood samples (3.8 tnM) was 3.7%.

Micromachining technology was used to construct the third thermal biosensor on a silicon chip. Enzymes were immobilized directly onto the 30 parallel flow channels. Injection of 200 samples containing 10 mM hydrogen peroxide gave a relative standard deviation of 3%. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Biochemical Technology
series title
Advances in Molecular and Cell Biology
editor
Bittar, Edward ; Danielsson, Bengt and Bülow, Leif
volume
15
pages
7 pages
publisher
Elsevier
external identifiers
  • scopus:77956726724
ISSN
1569-2558
ISBN
0762301147
9780762301140
DOI
10.1016/S1569-2558(08)60130-7
language
English
LU publication?
yes
id
4c209487-54a6-491a-bf80-380e3c89bdf8
date added to LUP
2021-10-27 21:13:56
date last changed
2022-02-02 00:55:13
@inbook{4c209487-54a6-491a-bf80-380e3c89bdf8,
  abstract     = {{A summary of our efforts to develop miniaturized biosensors based on the enzyme thermistor is presented. Three constructions are described. The work focuses on the measurement of glucose in whole blood.<br/><br/>The first biosensor was used to analyze concentrated and tenfold diluted blood samples. The glucose concentration obtained using this construction correlated well with the reference method.<br/><br/>Using the second biosensor, the response time could be reduced from 3 minutes down to 30 seconds using a sample volume of 1 μl. The relative standard deviation for 100 blood samples (3.8 tnM) was 3.7%.<br/><br/>Micromachining technology was used to construct the third thermal biosensor on a silicon chip. Enzymes were immobilized directly onto the 30 parallel flow channels. Injection of 200 samples containing 10 mM hydrogen peroxide gave a relative standard deviation of 3%.}},
  author       = {{Hedberg, U. and Xie, B. and Danielsson, B.}},
  booktitle    = {{Biochemical Technology}},
  editor       = {{Bittar, Edward and Danielsson, Bengt and Bülow, Leif}},
  isbn         = {{0762301147}},
  issn         = {{1569-2558}},
  language     = {{eng}},
  pages        = {{499--505}},
  publisher    = {{Elsevier}},
  series       = {{Advances in Molecular and Cell Biology}},
  title        = {{Miniaturized thermal biosensors}},
  url          = {{http://dx.doi.org/10.1016/S1569-2558(08)60130-7}},
  doi          = {{10.1016/S1569-2558(08)60130-7}},
  volume       = {{15}},
  year         = {{1996}},
}