Smartphone coupled with paper-based chemical sensor for on-site determination of iron(III) in environmental and biological samples

Shrivas, Kamlesh; Monisha,; Kant, Tushar; Karbhal, Indrapal; Kurrey, Ramsingh; Sahu, Bhuneshwari; Sinha, Debabrata; Patra, Goutam Kumar; Deb, Manas Kanti; Pervez, Shamsh

doi:10.1007/s00216-019-02385-x

Cited by 53 publications

(25 citation statements)

References 42 publications

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“…The dipping method produces a larger area paper‐based sensor by immersing any desired shape and size of paper into a functional material solution or a uniform suspension. [ 51 ] Wen et al . [ 52 ] prepared a dual‐emission sensor paper by immersing filter paper (8 cm in diameter) in CDs solution and copper nanoclusters (CuNCs) solution step by step.…”

Section: Preparation Of Paper‐based Sensorsmentioning

confidence: 99%

“…reported a smartphone‐paper‐based colorimetric sensor by dipping the filter paper with cetyltrimethylammonium bromide‐modified Ag NPs for the quantitative determination of Fe 3+ . [ 51 ] The linear range and determination limit of total iron content in Fe 3+ are 50–900 μg L −1 and 20 μg L −1 . Kim et al .…”

Section: Pathways Of Paper‐based Sensors Towards Detectionmentioning

confidence: 99%

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Recent advances of environmental pollutants detection via paper‐based sensing strategy

Zou

et al. 2021

Luminescence

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Paper has become one of the most promising substrates for building low‐cost and powerful sensing platforms due to its self‐pumping ability and compatibility with multiple patterning methods. Paper‐based sensors have been greatly developed in the field of environmental monitoring. In this review, we introduced the research and application of paper‐based sensors in environmental monitoring, focusing on the deposition and patterning methods of building paper‐based sensors, and summarized the applications of detecting environmental pollutants, including metal ions, anions, explosives, neurotoxins, volatile organic compounds, and small molecules. In addition, the development prospects and challenges of promoting paper‐based sensors are also discussed. The current review will provide references for the construction of portable paper‐based sensors, and has implications for the field of on‐site real‐time detection of the environment.

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Section: Preparation Of Paper‐based Sensorsmentioning

confidence: 99%

Section: Pathways Of Paper‐based Sensors Towards Detectionmentioning

confidence: 99%

Recent advances of environmental pollutants detection via paper‐based sensing strategy

Zou

et al. 2021

Luminescence

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“…Therefore, the call for a more frugal design and portable porting medium has led scientists to consider readily available cellulose-based substances as potential housing candidates. For over a decade, cellulose substrates such as paper-and thread-based analytical devices (μPADs/μTADs) have been extensively developed and investigated for a wide range of applications including food and water analysis and other environmental applications [29][30][31][32][33][34]. Additionally, the biological relevance of μPADs and μTADs in blood separation and analysis, immunoassay, analyte testing, and usage of smartphones for biosensing have been studied for point-of-care diagnosis [29, [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Paper and thread as media for the frugal detection of urinary tract infections (UTIs)

et al. 2021

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Urinary tract infections (UTIs) make up a significant proportion of the global burden of disease in vulnerable groups and tend to substantially impair the quality of life of those affected, making timely detection of UTIs a priority for public health. However, economic and societal barriers drastically reduce accessibility of traditional lab-based testing methods for critical patient groups in low-resource areas, negatively affecting their overall healthcare outcomes. As a result, cellulose-based materials such as paper and thread have garnered significant interest among researchers as substrates for so-called frugal analytical devices which leverage the material’s portability and adaptability for facile and reproducible diagnoses of UTIs. Although the field may be only in its infancy, strategies aimed at commercial penetration can appreciably increase access to more healthcare options for at-risk people. In this review, we catalogue recent advances in devices that use cellulose-based materials as the primary housing or medium for UTI detection and chart out trends in the field. We also explore different modalities employed for detection, with particular emphasis on their ability to be ported onto discreet casings such as sanitary products. Graphical abstract

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“… 27 , 28 Nowadays, smartphones are ubiquitous and host a variety of advanced sensors, especially, powerful camera and wireless connectivity technology. So far, the smartphone platforms were used for the detection of heavy-metal ions, 29 − 31 molecules, 32 cells, and biomarkers. 33 − 35 In general, a simple apparatus should add up to a smartphone to complete an augmented laboratory.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Estimation of Lead Ion Concentration Using Smartphone-Based Colorimetric Analysis and a Machine Learning Approach

et al. 2020

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Traditional methods for detection of lead ions in water samples are costly and time-consuming. In this work, an accurate smartphone-based colorimetric sensor was developed utilizing a novel machine learning algorithm. In the presence of Pb 2+ ions in the solution of specifically functionalized gold nanoparticles, the color of solution turns from red to purple. Indeed, the color variation of the solution is proportional to Pb 2+ concentration. The smartphone camera captures the corresponding color change, and the image is processed by an efficient artificial intelligence protocol. The nonlinear regression approach was used for concentration estimation, in which the parameters of the proposed model are obtained using a new feature extraction algorithm. In prediction of Pb 2+ concentration, the average absolute error and root-mean-square error were 0.094 and 0.124, respectively. The influence of pH of the medium, temperature, oligonucleotide concentration, and reaction time on the performance of the proposed sensor was carefully investigated and understood to achieve the best sensor response. This novel sensor exhibited good linearity for the detection of Pb 2+ in the concentration range of 0.5–2000 ppb with a detection limit of 0.5 ppb.

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Smartphone coupled with paper-based chemical sensor for on-site determination of iron(III) in environmental and biological samples

Cited by 53 publications

References 42 publications

Recent advances of environmental pollutants detection via paper‐based sensing strategy

Recent advances of environmental pollutants detection via paper‐based sensing strategy

Paper and thread as media for the frugal detection of urinary tract infections (UTIs)

High-Performance Estimation of Lead Ion Concentration Using Smartphone-Based Colorimetric Analysis and a Machine Learning Approach

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