Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry

J. N. Ullom; Matthias Frank; J. M. Horn; S. E. Labov; K. Langry; W. H. Benner

doi:10.1016/S0168-9002(99)01411-4

Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry

J. N. Ullom, Matthias Frank, J. M. Horn, S. E. Labov, K. Langry, W. H. Benner

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

We present time-of-flight measurements of biological material ejected from bacterial spores following laser irradiation. Ion impacts are registered on a microchannel plate detector and on a Superconducting Tunnel Junction (STJ) detector. We compare mass spectra obtained with the two detectors. The STJ has better sensitivity to massive ions and also measures the energy of each ion. We show evidence that spores of different bacillus species produce distinctive mass spectra and associate the observed mass peaks with coat proteins.

Original language	English (US)
Pages (from-to)	385-388
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	444
Issue number	1
DOIs	https://doi.org/10.1016/S0168-9002(99)01411-4
State	Published - Apr 7 2000
Externally published	Yes
Event	8th International Workshop on Low Temperature Detectors (LTD-8) - Dalfsen, Neth Duration: Aug 15 1999 → Aug 20 1999

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Ullom, J. N., Frank, M., Horn, J. M., Labov, S. E., Langry, K., & Benner, W. H. (2000). Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 444(1), 385-388. https://doi.org/10.1016/S0168-9002(99)01411-4

Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry. / Ullom, J. N.; Frank, Matthias; Horn, J. M.; Labov, S. E.; Langry, K.; Benner, W. H.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 444, No. 1, 07.04.2000, p. 385-388.

Research output: Contribution to journal › Conference article › peer-review

Ullom, JN, Frank, M, Horn, JM, Labov, SE, Langry, K & Benner, WH 2000, 'Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 444, no. 1, pp. 385-388. https://doi.org/10.1016/S0168-9002(99)01411-4

Ullom JN, Frank M, Horn JM, Labov SE, Langry K, Benner WH. Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2000 Apr 7;444(1):385-388. https://doi.org/10.1016/S0168-9002(99)01411-4

Ullom, J. N. ; Frank, Matthias ; Horn, J. M. ; Labov, S. E. ; Langry, K. ; Benner, W. H. / Identification of microorganisms using Superconducting Tunnel Junctions and time-of-flight mass spectrometry. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2000 ; Vol. 444, No. 1. pp. 385-388.

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abstract = "We present time-of-flight measurements of biological material ejected from bacterial spores following laser irradiation. Ion impacts are registered on a microchannel plate detector and on a Superconducting Tunnel Junction (STJ) detector. We compare mass spectra obtained with the two detectors. The STJ has better sensitivity to massive ions and also measures the energy of each ion. We show evidence that spores of different bacillus species produce distinctive mass spectra and associate the observed mass peaks with coat proteins.",

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