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Bonanno, Lisa M.; DeLouise, Lisa A.
Biosensors & bioelectronics, 10/2007, Letnik: 23, Številka: 3Journal Article
The future of rapid point-of-care diagnostics depends on the development of cheap, noncomplex, and easily integrated systems to analyze biological samples directly from the patient (e.g. blood, urine, and saliva). A key concern in diagnostic biosensing is signal differentiation between non-specifically bound material and the specific capture of target molecules. This is a particular challenge for optical detection devices in analyzing complex biological samples. Here we demonstrate a porous silicon (PSi) label-free optical biosensor that has intrinsic size-exclusion filtering capabilities which enhances signal differentiation. We present the first demonstration of highly repeatable, specific detection of immunoglobulin G (IgG) in serum and whole blood samples over a typical physiological range using the PSi material as both a biosensor substrate and filter.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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