Nanoplasmonic Strip Test for Salivary Glucose Monitoring

Nowadays, there is an increasing interest in Point-of-care (POC) devices for the noninvasive glucose assessment. Despite the recent progress in glucose self-monitoring, commercially available devices still use invasive samples such as blood or interstitial fluids, and they are not equipment-free and...

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Main Authors: Helena Torné-Morató, Paolo Donati, Pier Paolo Pompa
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/12/1/105
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author Helena Torné-Morató
Paolo Donati
Pier Paolo Pompa
author_facet Helena Torné-Morató
Paolo Donati
Pier Paolo Pompa
author_sort Helena Torné-Morató
collection DOAJ
description Nowadays, there is an increasing interest in Point-of-care (POC) devices for the noninvasive glucose assessment. Despite the recent progress in glucose self-monitoring, commercially available devices still use invasive samples such as blood or interstitial fluids, and they are not equipment-free and affordable for the whole population. Here, we report a fully integrated strip test for the semi-quantitative detection of glucose in whole saliva. The colorimetric mechanism consists of an enzyme-mediated reshaping of multibranched gold nanoparticles (MGNPs) into nanospheres with an associated plasmonic shift and consequent blue-to-red color change, clearly detectable in less than 10 min.
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spelling doaj.art-12b7261983e346fc8587c9f926956c8d2023-11-23T12:01:34ZengMDPI AGNanomaterials2079-49912021-12-0112110510.3390/nano12010105Nanoplasmonic Strip Test for Salivary Glucose MonitoringHelena Torné-Morató0Paolo Donati1Pier Paolo Pompa2Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), via Morego, 30-16163 Genova, ItalyNanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), via Morego, 30-16163 Genova, ItalyNanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), via Morego, 30-16163 Genova, ItalyNowadays, there is an increasing interest in Point-of-care (POC) devices for the noninvasive glucose assessment. Despite the recent progress in glucose self-monitoring, commercially available devices still use invasive samples such as blood or interstitial fluids, and they are not equipment-free and affordable for the whole population. Here, we report a fully integrated strip test for the semi-quantitative detection of glucose in whole saliva. The colorimetric mechanism consists of an enzyme-mediated reshaping of multibranched gold nanoparticles (MGNPs) into nanospheres with an associated plasmonic shift and consequent blue-to-red color change, clearly detectable in less than 10 min.https://www.mdpi.com/2079-4991/12/1/105colorimetric sensorgold nanoparticlesplasmonicshyperglycemiapoint-of-care
spellingShingle Helena Torné-Morató
Paolo Donati
Pier Paolo Pompa
Nanoplasmonic Strip Test for Salivary Glucose Monitoring
Nanomaterials
colorimetric sensor
gold nanoparticles
plasmonics
hyperglycemia
point-of-care
title Nanoplasmonic Strip Test for Salivary Glucose Monitoring
title_full Nanoplasmonic Strip Test for Salivary Glucose Monitoring
title_fullStr Nanoplasmonic Strip Test for Salivary Glucose Monitoring
title_full_unstemmed Nanoplasmonic Strip Test for Salivary Glucose Monitoring
title_short Nanoplasmonic Strip Test for Salivary Glucose Monitoring
title_sort nanoplasmonic strip test for salivary glucose monitoring
topic colorimetric sensor
gold nanoparticles
plasmonics
hyperglycemia
point-of-care
url https://www.mdpi.com/2079-4991/12/1/105
work_keys_str_mv AT helenatornemorato nanoplasmonicstriptestforsalivaryglucosemonitoring
AT paolodonati nanoplasmonicstriptestforsalivaryglucosemonitoring
AT pierpaolopompa nanoplasmonicstriptestforsalivaryglucosemonitoring