Cobalt metal-organic framework modified carbon cloth/paper hybrid electrochemical button-sensor for nonenzymatic glucose diagnostics

Wei, Xiaofeng; Guo, Jialei; Lian, Huiqin; Sun, Xiaojie; Liu, Bin

doi:10.1016/j.snb.2020.129205

Cited by 118 publications

(32 citation statements)

References 35 publications

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“…Such a wonderful structure was utilized to prepare a dual-channel sensor, which can detect glucose and lactate simultaneously with a sensitivity of 2.4 nA μM −1 and 0.49 μA mM −1 , respectively. A portable, robust and user-friendly cobalt-MOF modified carbon cloth/paper (Co-MOF/CC/Paper) electrochemical sensor was fabricated for non-enzymatic quantitative glucose detection ( Wei et al, 2021 ). Co-MOF was crystallized on CC to successfully manufacture a highly integrated electrochemical analytical chip that effectively increased the specific surface area compared to conventional planar electrodes.…”

Section: Paper-based Flexible Biosensors For Poctmentioning

confidence: 99%

Flexible Biosensors Based on Colorimetry, Fluorescence, and Electrochemistry for Point-of-Care Testing

Yan¹,

Zhang²,

Chai

et al. 2021

Front. Bioeng. Biotechnol.

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With the outbreak and pandemic of COVID-19, point-of-care testing (POCT) systems have been attracted much attention due to their significant advantages of small batches of samples, user-friendliness, easy-to-use and simple detection. Among them, flexible biosensors show practical significance as their outstanding properties in terms of flexibility, portability, and high efficiency, which provide great convenience for users. To construct highly functional flexible biosensors, abundant kinds of polymers substrates have been modified with sufficient properties to address certain needs. Paper-based biosensors gain considerable attention as well, owing to their foldability, lightweight and adaptability. The other important flexible biosensor employs textiles as substrate materials, which has a promising prospect in the area of intelligent wearable devices. In this feature article, we performed a comprehensive review about the applications of flexible biosensors based on the classification of substrate materials (polymers, paper and textiles), and illustrated the strategies to design effective and artificial sensing platforms, including colorimetry, fluorescence, and electrochemistry. It is demonstrated that flexible biosensors play a prominent role in medical diagnosis, prognosis, and healthcare.

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Section: Paper-based Flexible Biosensors For Poctmentioning

confidence: 99%

Flexible Biosensors Based on Colorimetry, Fluorescence, and Electrochemistry for Point-of-Care Testing

Yan¹,

Zhang²,

Chai

et al. 2021

Front. Bioeng. Biotechnol.

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“…Since the 0.1 M NaOH solution could yield a high pH value of 13, we chose it as the electrolyte to promote the currents of CVs. The 0.1 M NaOH electrolyte is relevant even for testing the electrode in real sample, e.g., human serum, as reported in [ 38 ]. Prior to recording the CV curves, the measurements were repeatedly scanned at the same potential window until no change in the CV curves was observed.…”

Section: Methodsmentioning

confidence: 99%

Edge-Rich Interconnected Graphene Mesh Electrode with High Electrochemical Reactivity Applicable for Glucose Detection

et al. 2021

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The development of graphene structures with controlled edges is greatly desired for understanding heterogeneous electrochemical (EC) transfer and boosting EC applications of graphene-based electrodes. We herein report a facile, scalable, and robust method to produce graphene mesh (GM) electrodes with tailorable edge lengths. Specifically, the GMs were fabricated at 850 °C under a vacuum level of 0.6 Pa using catalytic nickel templates obtained based on a crack lithography. As the edge lengths of the GM electrodes increased from 5.48 to 24.04 m, their electron transfer rates linearly increased from 0.08 to 0.16 cm∙s−1, which are considerably greater than that (0.056 ± 0.007 cm∙s−1) of basal graphene structures (defined as zero edge length electrodes). To illustrate the EC sensing potentiality of the GM, a high-sensitivity glucose detection was conducted on the graphene/Ni hybrid mesh with the longest edge length. At a detection potential of 0.6 V, the edge-rich graphene/Ni hybrid mesh sensor exhibited a wide linear response range from 10.0 μM to 2.5 mM with a limit of detection of 1.8 μM and a high sensitivity of 1118.9 μA∙mM−1∙cm−2. Our findings suggest that edge-rich GMs can be valuable platforms in various graphene applications such as graphene-based EC sensors with controlled and improved performance.

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“…Aiming to attest to such capabilities of PADs and EFBs, we bring out some reported sensors for a specific task: the detection and quantification of glucose [ 88 , 90 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 107 , 108 , 111 , 113 , 114 , 120 , 146 , 152 , 225 , 226 , 227 , 228 , 229 , 230 , 231 , 232 , 233 , 234 , 235 , 236 , 237 , 238 , 239 , 240 , 241 , 242 , 243 ]. Glucose sensing platforms are among the most common and studied devices, and a wide variety is already commercially available.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Paper and Other Fibrous Materials—A Complete Platform for Biosensing Applications

et al. 2021

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Paper-based analytical devices (PADs) and Electrospun Fiber-Based Biosensors (EFBs) have aroused the interest of the academy and industry due to their affordability, sensitivity, ease of use, robustness, being equipment-free, and deliverability to end-users. These features make them suitable to face the need for point-of-care (POC) diagnostics, monitoring, environmental, and quality food control applications. Our work introduces new and experienced researchers in the field to a practical guide for fibrous-based biosensors fabrication with insight into the chemical and physical interaction of fibrous materials with a wide variety of materials for functionalization and biofunctionalization purposes. This research also allows readers to compare classical and novel materials, fabrication techniques, immobilization methods, signal transduction, and readout. Moreover, the examined classical and alternative mathematical models provide a powerful tool for bioanalytical device designing for the multiple steps required in biosensing platforms. Finally, we aimed this research to comprise the current state of PADs and EFBs research and their future direction to offer the reader a full insight on this topic.

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Cobalt metal-organic framework modified carbon cloth/paper hybrid electrochemical button-sensor for nonenzymatic glucose diagnostics

Abstract: Graphical abstract

Cited by 118 publications

References 35 publications

Flexible Biosensors Based on Colorimetry, Fluorescence, and Electrochemistry for Point-of-Care Testing

Flexible Biosensors Based on Colorimetry, Fluorescence, and Electrochemistry for Point-of-Care Testing

Edge-Rich Interconnected Graphene Mesh Electrode with High Electrochemical Reactivity Applicable for Glucose Detection

Paper and Other Fibrous Materials—A Complete Platform for Biosensing Applications

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