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Using a Smartphone in the Identification and Classification of Natural Mineral Waters by Color Measurements of Indicator Papers
AbstractA test device based on cellulose paper is proposed for the identification and classification of natural mineral waters. It contains indicator...
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Fluorescent on-site detection of multiple pathogens using smartphone-based portable device with paper-based isothermal amplification chip
The development of cost-effective, portable, and ease-of-use sensing system for on-site genetic diagnostics is highly desirable for pathogen...
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A biosensor based on Fe3O4@MXene-Au nanocomposites with high peroxidase-like activity for colorimetric and smartphone-based detection of glucose
A novel magnetic nanozyme Fe 3 O 4 @MXene-Au nanocomposite, which possessed higher peroxidase-like activity than that of Fe 3 O 4 nanoparticles and Fe 3 O 4 @MXe...
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Microextraction-Colorimetric Determination and Identification of Penicillin Antibiotics in Medicines Using a Smartphone and Chemometric Analysis
AbstractWe propose a rapid and simple method for determining penicillin antibiotics in medicines based on dispersive liquid–liquid microextraction of...
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A smartphone-based colorimetric assay using Cu-tannic acid nanosheets (Cu-TA NShs) as a laccase-mimicking nanozyme for visual detection of quercetin in vegetables
The interaction of Cu-tannic acid nanosheets (Cu-TA NShs) as nanozyme in a surfactant solution of CTAB under relatively acidic conditions is shown...
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Point-of-Care Testing of Chloramphenicol in Food Production Using Smartphone-Based Electrochemical Detector
Antibiotic abuse in food processing could threaten human health via either direct pathogen or drug-resistant infection. To curb this situation, it is...
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An advantageous analytical method for the determination of fluoride in saliva exploiting smartphone-based digital-image colorimetry
In this study, it was aimed to perform the colorimetric determination of fluoride in human saliva using smartphone camera. The SPADNS method (The...
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Analyte-triggered in situ “off–on” of Tyndall effect for smartphone-based quantitative nanosensing of Ag+ ions
This work describes two new colorimetric methods for smartphone-based point-of-care nanosensing of toxic Ag + ions. They were based on the...
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Integration of Myrica rubra–based N-doped carbon dots with Fe3S4 as excellent peroxidase mimics for colorimetric assay and smartphone-based intelligent sensing of p-aminophenol in waters
To realize the reutilization of waste Myrica rubra in the analytical field, we synthesized Myrica rubra –based N-doped carbon dots (MN-CDs) and...
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Smartphone-based electrochemical analysis integrated with NFC system for the voltammetric detection of heavy metals using a screen-printed graphene electrode
The electrochemical determination of five heavy metals is demonstrated using a wireless and card-sized potentiostat coupled with a smartphone through...
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Smartphone-coupled three-layered paper-based microfluidic chips demonstrating stereoscopic capillary-driven fluid transport towards colorimetric detection of pesticides
The existence of pesticide residues in the hydrosphere, biosphere, and anthroposphere can cause acute or chronic diseases and deteriorate the...
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A visual and reversible nanoprobe for rapid and on-site determination of hexavalent chromium and lysine based on dual-emission carbon quantum dots coupled with smartphone
A straightforward, largely instrument-free, smartphone-based analytical strategy for hexavalent chromium and lysine (Lys) on-site detection via...
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Development of a simple analytical method for the determination of nitrite in waters using redox reaction and smartphone
In this study, it was aimed to perform the colorimetric determination of nitrite in waters using the redox reaction of iodide in acidic conditions...
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Smartphone-assisted ratiometric fluorescence sensing platform for the detection of doxycycline based on BCNO QDs and calcium ion
A novel colorimetric and ratiometric fluorescence sensor has been established based on boron carbon oxynitride quantum dots (BCNO QDs) and Ca 2+ for...
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Smartphone-assisted quantitative colorimetric identification of thrombin based on peroxidase mimetic features of fibrinogen-gold nanozymes
Fibrinogen-modified gold nanoparticles (Fib-AuNPs) and 3,3′,5,5′-tetramethylbenzidine (TMB) substrate besides hydrogen peroxide (H 2 O 2 ) were applied...
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Switchable-hydrophilicity solvent liquid–liquid microextraction combined with smartphone digital image colorimetry for the determination of palladium in catalytic converters
Switchable-hydrophilicity solvent liquid–liquid microextraction was coupled with smartphone digital image colorimetry for the determination of...
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Hollow CoZnSe@CN nanocage with enzymatic activity for determination of tetracycline using smartphone platforms and virtual reality revealing
Antibiotic residues in the environment pose a serious threat to ecosystems and human health. Therefore, it is important to develop sensitive and...
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Sorption-Fluorimetric Determination of Quinolones in Waste and Natural Waters with a Smartphone
AbstractA simple, affordable, and safe (green chemistry) method is proposed for determining 17 quinolone antibiotics in waste and natural waters by...
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Smartphone-assisted hydrogel platform based on BSA-CeO2 nanoclusters for dual-mode determination of acetylcholinesterase and organophosphorus pesticides
A dual-mode sensor was developed for detecting acetylcholinesterase (AChE) and organophosphorus pesticides (OPs) via bifunctional BSA-CeO 2 ...
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Using a Smartphone for Determining Tetracyclines in Water and Milk by the Sensitized Solid State Fluorescence of Europium on Its Hydroxide
AbstractA possibility of determining antibacterial preparations of the tetracycline series (tetracycline, doxycycline, oxytetracycline,...
