Rapid detection of Group B (GBS) from artificial urine samples based on IFAST and ATP bioluminescence assay: from development to practical challenges during protocol testing in Kenya
We report the rapid detection (20 min) of Streptococcus agalactiae , Group B Streptococcus (GBS) employing on-chip magnetic isolation of GBS based on immiscible filtration assisted by surface tension (IFAST), followed by detection of the isolated GBS using an adenosine triphosphate (ATP) bioluminesc...
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| Published in | Analyst (London) Vol. 144; no. 23; pp. 6889 - 6897 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Published |
18.11.2019
|
| Online Access | Get full text |
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| Abstract | We report the rapid detection (20 min) of
Streptococcus agalactiae
, Group B
Streptococcus
(GBS) employing on-chip magnetic isolation of GBS based on immiscible filtration assisted by surface tension (IFAST), followed by detection of the isolated GBS using an adenosine triphosphate (ATP) bioluminescence assay. Up to 80% GBS cells were isolated from spiked artificial urine samples with linear responses of bioluminescence signals from isolated cells at 2.3 × 10
2
-9.1 × 10
5
CFU mL
−1
, demonstrating great promise for point-of-care detection of pathogenic bacteria in screening urine samples from pregnant women. Practical challenges during initial testing of the developed protocol with urine samples in Kenya are also described.
Microfluidic IFAST/ATP bioluminescence assays were explored for potential point-of-care detection of Group B
Streptococcus
(GBS) in urine in low-resource settings. |
|---|---|
| AbstractList | We report the rapid detection (20 min) of
Streptococcus agalactiae
, Group B
Streptococcus
(GBS) employing on-chip magnetic isolation of GBS based on immiscible filtration assisted by surface tension (IFAST), followed by detection of the isolated GBS using an adenosine triphosphate (ATP) bioluminescence assay. Up to 80% GBS cells were isolated from spiked artificial urine samples with linear responses of bioluminescence signals from isolated cells at 2.3 × 10
2
-9.1 × 10
5
CFU mL
−1
, demonstrating great promise for point-of-care detection of pathogenic bacteria in screening urine samples from pregnant women. Practical challenges during initial testing of the developed protocol with urine samples in Kenya are also described.
Microfluidic IFAST/ATP bioluminescence assays were explored for potential point-of-care detection of Group B
Streptococcus
(GBS) in urine in low-resource settings. |
| Author | Iles, Alexander Kimani, Racheal Gitaka, Jesse Pamme, Nicole Muregi, Francis Ngamsom, Bongkot Wandera, Ernest Apondi |
| AuthorAffiliation | Department of Chemistry and Biochemistry Faculty of Science and Engineering. University of Hull Directorate of Research and Innovation Mount Kenya University |
| AuthorAffiliation_xml | – name: Faculty of Science and Engineering. University of Hull – name: Mount Kenya University – name: Department of Chemistry and Biochemistry – name: Directorate of Research and Innovation |
| Author_xml | – sequence: 1 givenname: Bongkot surname: Ngamsom fullname: Ngamsom, Bongkot – sequence: 2 givenname: Ernest Apondi surname: Wandera fullname: Wandera, Ernest Apondi – sequence: 3 givenname: Alexander surname: Iles fullname: Iles, Alexander – sequence: 4 givenname: Racheal surname: Kimani fullname: Kimani, Racheal – sequence: 5 givenname: Francis surname: Muregi fullname: Muregi, Francis – sequence: 6 givenname: Jesse surname: Gitaka fullname: Gitaka, Jesse – sequence: 7 givenname: Nicole surname: Pamme fullname: Pamme, Nicole |
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| DOI | 10.1039/c9an01808e |
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| Snippet | We report the rapid detection (20 min) of
Streptococcus agalactiae
, Group B
Streptococcus
(GBS) employing on-chip magnetic isolation of GBS based on... |
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| StartPage | 6889 |
| Title | Rapid detection of Group B (GBS) from artificial urine samples based on IFAST and ATP bioluminescence assay: from development to practical challenges during protocol testing in Kenya |
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