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Fiber-optic Fourier transform infrared spectroscopy for remote label-free sensing of medical device surface contamination
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10.1063/1.4803182
/content/aip/journal/rsi/84/5/10.1063/1.4803182
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/5/10.1063/1.4803182
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Principle optical setup of the fiber-optic FTIR sensor system.

Image of FIG. 2.
FIG. 2.

IR spectrum transmitted through the hollow delivery fibers. In the spectrum, the low transmission band is due to carbon dioxide absorption at ∼2400 cm.

Image of FIG. 3.
FIG. 3.

(a) Typical FTIR spectrum of BSA using three consecutive trials. Amide bands are observed at 1650 cm (amide I) and 1520 cm (amide II). (b) IR spectrum of BSA at different concentrations (1%–0.0025%). (c) Qualitative assessment of BSA at different concentrations (0.5%, 0.05%, 0.005%, and 0.0025% which represent 9.056 × 10, 9.056 × 10, 9.056 × 10, and 4.528 × 10 molecules, respectively, in a 2 l solution).

Image of FIG. 4.
FIG. 4.

Typical controlled endotoxin at different concentrations extracted from .

Image of FIG. 5.
FIG. 5.

Microscopic images with 15× magnification of endotoxin at different concentrations where endotoxin were not homogenously distributed.

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/content/aip/journal/rsi/84/5/10.1063/1.4803182
2013-05-07
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Fiber-optic Fourier transform infrared spectroscopy for remote label-free sensing of medical device surface contamination
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/5/10.1063/1.4803182
10.1063/1.4803182
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