Improving the performance of a bioelectronic tongue using silver nanowires: Application to milk analysis
نویسندگان
چکیده
Recent advances in the field of electronic tongues (ET) are linked to development devices dedicated a particular application. Following this idea, we have developed voltammetric bioelectronic tongue (bioET) specifically analyze milk. The performance multisensor system has been improved by incorporating biosensors combining specific enzymes for detection sugars present milk (β-galactosidase, glucose oxidase and galactose oxidase) with silver nanomaterials. It demonstrated that nanowires (AgNWs) provide more effective platform immobilization biomolecules than nanoparticles (AgNPs), inducing unique characteristics terms sensitivity limits. Two systems developed; one based on combinations AgNWs (AgNW/bioET) second AgNPs (AgNP/bioET). Principal component analysis (PCA) demonstrates bioET can discriminate 9 classes different fat content (skimmed, semi-skimmed whole), as well nutritional compositions (classic, calcium-enriched lactose-free), higher capacity Support vector machine (SVMR) models show excellent correlation coefficients between responses bioETs physicochemical parameters commonly used evaluate quality (acidity, density, fat, proteins, lactose, total dry matter non-fat matter). good results obtained support dairy industry’s interest bioETs, not only classification purposes but also obtain information concerning several single measurement. • Biosensors AFM coverage enzymes. low LOD high enzymatic affinity. A constructed using AgNWs. AgNWs/bioET be successfully applied milks.
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ژورنال
عنوان ژورنال: Sensors and Actuators B-chemical
سال: 2022
ISSN: ['0925-4005', '1873-3077']
DOI: https://doi.org/10.1016/j.snb.2022.131877