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Chemosensors, Volume 9, Issue 2

February 2021 - 23 articles

Cover Story: Piezo- and triboelectric nanogenerators (NG) based-on a micro-structured composite of ZnO nanorods (NRs) embedded in a polydimethylsiloxane (PDMS) film were demonstrated here. The concentration of the ZnO NRs, grown through a fast microwave radiation-assisted hydrothermal synthesis, in the PDMS film was optimized to achieve the best performance. A ZnO NRs concentration of 25 wt% in the composite allowed achieving an output voltage of 6 V and a power density of 4.8 µW·cm⁻² with a pushing force of only 2.3 N. Even applying a low pushing force, the energy generated by these NGs is enough to power small electronic devices, demonstrating their potential as wearable energy-harvesting devices. View this paper

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Article

3 Citations

4,622 Views

13 Pages

Fabrication of Zinc Protoporphyrin-Modified Gold Electrode for Sensitive and Fast Detection of Vascular Endothelial Growth Factor

Hung-Yu Lin,
Chin-Cheng Liao and
Mu-Yi Hua

Chemosensors2021, 9(2), 21;https://doi.org/10.3390/chemosensors9020021

23 January 2021

Vascular endothelial growth factor (VEGF) is directly related to cancer growth and its distant spread, and thus, it is considered a promising biomarker for diagnosis and post-treatment monitoring of patients with malignancies. Zinc protoporphyrin (Zn...

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Article

3 Citations

4,672 Views

17 Pages

Functionalized Surfaces as a Tool for Virus Sensing: A Demonstration of Human mastadenovirus Detection in Environmental Waters

Juliana Schons Gularte,
Roana de Oliveira Hansen,
Meriane Demoliner,
Jacek Fiutowski,
Ana Karolina Antunes Eisen,
Fagner Henrique Heldt,
Paula Rodrigues de Almeida,
Daniela Müller de Quevedo,
Horst-Günter Rubahn and
Fernando Rosado Spilki

Chemosensors2021, 9(2), 19;https://doi.org/10.3390/chemosensors9020019

21 January 2021

The main goal of this study was to apply magnetic bead surface functionalization in the form of immunomagnetic separation (IMS) combined with real-time polymerase chain reaction (qPCR) (IMS-qPCR) to detect Human mastadenovirus species C (HAdV-C) and...

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Article

13 Citations

4,048 Views

12 Pages

Combining Chemical Functionalization and FinFET Geometry for Field Effect Sensors as Accessible Technology to Optimize pH Sensing

Dipti Rani,
Serena Rollo,
Wouter Olthuis,
Sivashankar Krishnamoorthy and
César Pascual García

Chemosensors2021, 9(2), 20;https://doi.org/10.3390/chemosensors9020020

21 January 2021

Field Effect Transistors (FETs) have led the progress of applications measuring the acidity in aqueous solutions thanks to their accuracy, ease of miniaturization and capacity of multiplexing. The signal-to-noise ratio and linearity of the sensors ar...

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