Nanomaterial-based sensors for water remediation, healthcare and food monitoring applications
Nanomaterial-based sensors are interesting tools that allow for the precise detection at the nanomolar to sub-picomolar scales and can be useful in applications such as healthcare monitoring, environmental pollutant detection, and food quality analysis. Nanomaterials offer unique physicochemical features, a large electroactive and recognition surface area, and have been widely exploited to increase device sensing performance at the nanoscale. As a result, they play an important role in bioenvironmental and food science.
Contributions on innovative nanomaterial synthesis, characterization methods, rational design, and application of nanomaterial-based sensors to all types of water quality, food quality, and healthcare monitoring and sensing platforms will be considered for this thematic issue. Research contributions to this thematic issue may include but are not limited to the following topics:
- One- and two-dimensional nanostructured materials for sensor applications (e.g., MXenes, metal–organic frameworks (MOFs), and transition metal dichalcogenides (TMDs))
- Hollow nanomaterial-based sensors in environmental remediation and monitoring
- Nanomaterial-based optical and electrochemical sensors
- Nanomaterial-based wearable, flexible, and implantable sensors (e.g., skin sensors, tactile sensors)
- Nanomaterial-based bioresorbable sensors
- Enzyme-mimicking nanomaterials for biosensing applications
- Deformable and stretchable nanosensors with integrated functional nanomaterials
- Engineered nanomaterials for bioenvironmental applications
- Smart nanomaterial-based sensors for food quality monitoring
- Nanomaterial-based molecularly imprinted polymers for sensing platforms
- Fluorescent hybrid nanomaterials for water, food, and bioenvironmental sensing
** Submission deadline extended to December 31, 2022 **
- Full Research Paper
- Published 25 Jan 2022
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Figure 1: Optical characteristics of sensors based on 3D PhC (matrix thickness ≈ 90 µm): (a) diffuse reflecta...
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Figure 2: (a) Photo of the sensor and (b) electron microscopy image of a CCA of polystyrene particles without...
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Figure 3: A mechanism of detecting hydrocarbons with a sensor based on a 3D PhC: (a, b) swelling of colloidal...
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Figure 4: Comparison of the PBG shift rate exposed to toluene and n-pentane vapors (matrix thickness about 90...
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Figure 5: Response rates of sensor matrices (red) and vapor pressure (blue): (a) response time for aromatic h...
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Figure 6: The dependence of the sensor response rate on the content of toluene in p-xylene (matrix thickness ...
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Figure 7: Reversibility of the response to toluene vapor: (a) position of the reflection maximum: green – bef...
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Figure 8: Key points of the experiments: (a) scheme of the experimental equipment; (b) a photo image of the s...
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- Full Research Paper
- Published 07 Feb 2022
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Figure 1: Illustration representing the scheme for sensor development.
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Figure 2: SEM images of nanofibers developed from 12 wt % (A), 14 wt % (B), and 16 wt % (C). PVDF solution an...
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Figure 3: X-ray diffraction pattern of nanofibers at various concentrations.
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Figure 4: Digital oscilloscope graph of the sensor under low dynamic strain (A), the output voltage under low...
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Figure 5: Integration of nanofibrous mesh into a knitted fabric for human body angle measurement (A), schemat...
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- Full Research Paper
- Published 03 May 2022
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Figure 1: SEM images of copper oxide samples. (a, b) General view and morphology of a CuO film obtained by th...
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Figure 2: XRD pattern of CuO films. The red diffractogram corresponds to the sample obtained by thermal oxida...
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Figure 3: (a) CV results for a nanostructured CuO film in 0.1 M NaOH buffer solution (pH 12.7) and in solutio...
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Figure 4: SEM images of CuO nanostructures obtained via hydrothermal oxidation method after (a) 1 h, (b) 3 h,...
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Figure 5: (a) DPV results for the nanostructured CuO electrode in 0.1 M NaOH buffer solution containing 33–50...
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Figure 6: (a) Amperometric response of the nanostructured CuO electrode in 0.1 M NaOH with stepwise addition ...
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Figure 7: (a) Amperometric response of the nanostructured CuO electrode in 0.1 M NaOH with stepwise addition ...
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- Full Research Paper
- Published 28 Jul 2022
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Figure 1: (A) UV–vis spectra of GO and ERGO. (B) Raman spectra for GO to ERGO conversion using different buff...
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Figure 2: Deconvoluted XPS core-level spectrum of (A) C 1s, (B) O 1s for GO, (C) C 1s, and (D) O 1s for ERGO ...
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Figure 3: (A) TEM images of as-synthesized GO, ERGO synthesized in different electrolytes: (B) PBS pH 4.5, (C...
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Figure 4: (A) Cyclic voltammograms of GO and ERGO using different electrolytic buffers: Acetate buffer pH 4.7...
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Figure 5: (A) Cyclic voltammograms of PT (10 mM) with bare GCE (a), GO/GCE (b), and ERGO/GCE (c). (B) Electro...
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Figure 6: (A) Cyclic voltammograms of 10 μM PT in PBS, pH 7, with different amounts of GO deposited on bare G...
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Figure 7: (A) Cyclic voltammograms of ERGO/GCE under different scanning rates (10, 25, 40, 50, 65, 80, 100, 1...
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Figure 8: Relationship of stripping peak current in SWV measurements of 10 μM PT as a function of accumulatio...
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Figure 9: (A) SWV response of ERGO/GCE electrode in electrolytes (PBS, 0.05 M, pH 7) with different concentra...
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Supp. Info
- Review
- Published 05 Oct 2022
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Figure 1: Illustration of the environmentally friendly sources employed for the synthesis of CDs and their ap...
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Figure 2: Luminescence of CDs synthesized from citric acid and various green sources. Figure 2 was reproduced from [60] (...
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Figure 3: Strategy for the synthesis of ratiometric CDs obtained from white pepper. Figure 3 was reprinted from [86], Foo...
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Figure 4: Graphical illustration of the procedure followed with wine lees. Figure 4 was reproduced from [91] (© 2017 M. V...
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Figure 5: Schematic representation of the whole process. Figure 5 was reprinted from [102], Journal of Luminescence, vol. ...
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Figure 6: Graphical illustration for the synthesis of CDs from human urine and their application for bioimagi...
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Figure 7: (A) Flow chart of multicolor CDs production. (B) Carbon distribution in gas, liquid, and solid phas...
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Figure 8: Structural characterization techniques used to study CDs.
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Figure 9: The proposed quenching mechanism of CDs prepared from betel leaves. Figure 9 was reprinted from [140], Materials...
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Figure 10: Detection mechanism of Hg2+ by using the CGCS-CDs as fluorescence probe. Figure 10 was reprinted from [142], Micr...
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Figure 11: Schematic representation of off-on fluorescence of CDs prepared from Prosopis juliflora. Figure 11 was reprin...
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Figure 12: Schematic illustration of the sensing mechanism of CDs in the presence of Cd2+ and Cu2+ ions. Figure 12 was ...
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Figure 13: Schematic representation of Pb2+ ion sensing using oyster mushroom-derived CDs. Reprinted with perm...
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Figure 14: Fluorescence quenching and restoration of jute caddies based modified CDs, in the presence of Cr6+ ...
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Figure 15: Schematic illustration of the CD synthesis from flax straw and the detection of Co2+, Cr6+, and AA. ...
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Figure 16: Proposed mechanism of chromium sensing with f-CDs. Figure 16 was reprinted from [83], Sensors and Actuators B: C...
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Figure 17: Highly luminescent, multi-functionalized, cell-viable CDs were prepared from waste expanded polysty...
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Figure 18: Schematic illustration of the design and working principle of prickly pear cactus-based CDs. Reprod...
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