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Chemosensors, Volume 13, Issue 4

April 2025 - 38 articles

Cover Story: Molecularly imprinted polymers (MIPs) can be combined with optical fibers (OFs) to create a variety of sensor configurations utilizing extrinsic or intrinsic schemes. The paradigm change involves using a sensitive MIP-based core in optical waveguides rather than the evanescent field to monitor the MIP–analyte interaction. In this study, an innovative extrinsic optical fiber sensor was designed, realized, and tested by exploiting two silica OFs connected via a sensitive waveguide with a micrometer-size MIP–core. MIPs present several advantages over bio-receptors that can be exploited, and the proposed sensing approach stresses the capability of MIP receptors to produce an intensity-based sensor. As a proof of principle, an MIP of 2-furaldehyde (2-FAL) demonstrates the high sensitivity and selectivity of the sensor. View this paper
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Articles (38)

  • Article
  • Open Access
862 Views
13 Pages

Banana Flour Adulteration Key Marker Unravelled by Inductively Coupled Plasma Optical Emission Spectrometry Assisted by Chemometric Tools

  • Silvio Luiz Fernandes Júnior,
  • Paula Mothé Gonçalves,
  • Diego Barros Batista,
  • Aderval S. Luna,
  • Fernanda Nunes Ferreira,
  • Licarion Pinto and
  • Jefferson Santos de Gois

Green banana flour has been gaining prominence as a functional food due to its high nutritional value and health benefits. However, its increasing commercialization has also raised concerns about adulteration, which can compromise both product qualit...

  • Article
  • Open Access
1,170 Views
20 Pages

Influence of Different Synthesis Methods on the Defect Structure, Morphology, and UV-Assisted Ozone Sensing Properties of Zinc Oxide Nanoplates

  • Pedro P. Ortega,
  • João V. N. Palma,
  • Ana L. Doimo,
  • Laura Líbero,
  • Gabriel F. Yamakawa,
  • Leonnam G. Merízio,
  • Ederson C. Aguiar,
  • Luís F. Silva and
  • Elson Longo

In this work, room-temperature UV-assisted ozone detection was investigated using ZnO nanoplates synthesized via precipitation, ultrasound-, ultrasonic tip-, and microwave-assisted hydrothermal (MAH) methods. X-ray diffraction confirmed the formation...

  • Article
  • Open Access
1 Citations
865 Views
21 Pages

Characteristics of Peanut Protein-Derived Carbon Dots and Their Application in Cell Imaging and Sensing of Metronidazole

  • Junyan Liao,
  • Zhixiong Hu,
  • Weinong Zhang,
  • Yanpeng Zhang,
  • Jiangrong Xiao and
  • Shenglan Lei

In this paper, peanut protein (PP) was used as the sole raw material for the preparation of fluorescent carbon dots (PP-CDs) by hydrothermal method. The PP-CDs exhibit good dispersibility, spherical-like shapes, and uniform sizes; the average particl...

  • Article
  • Open Access
4 Citations
1,098 Views
18 Pages

Influence of P(V3D3-co-TFE) Copolymer Coverage on Hydrogen Detection Performance of a TiO2 Sensor at Different Relative Humidity for Industrial and Biomedical Applications

  • Mihai Brinza,
  • Lynn Schwäke,
  • Lukas Zimoch,
  • Thomas Strunskus,
  • Thierry Pauporté,
  • Bruno Viana,
  • Tayebeh Ameri,
  • Rainer Adelung,
  • Franz Faupel and
  • Stefan Schröder
  • + 1 author

The detection of hydrogen gas is crucial for both industrial fields, as a green energy carrier, and biomedical applications, where it is a biomarker for diagnosis. TiO2 nanomaterials are stable and sensitive to hydrogen gas, but their gas response ca...

  • Article
  • Open Access
1 Citations
1,598 Views
22 Pages

Monitoring of Indoor Air Quality in a Classroom Combining a Low-Cost Sensor System and Machine Learning

  • Ioannis D. Apostolopoulos,
  • Eleni Dovrou,
  • Silas Androulakis,
  • Katerina Seitanidi,
  • Maria P. Georgopoulou,
  • Angeliki Matrali,
  • Georgia Argyropoulou,
  • Christos Kaltsonoudis,
  • George Fouskas and
  • Spyros N. Pandis

Monitoring indoor air quality in schools is essential, particularly as children are highly vulnerable to air pollution. This study evaluates the performance of the low-cost sensor-based air quality monitoring system ENSENSIA, during a 3-week campaign...

  • Review
  • Open Access
4 Citations
2,584 Views
20 Pages

Innovative Microfluidic Technologies for Rapid Heavy Metal Ion Detection

  • Muhammad Furqan Rauf,
  • Zhenda Lin,
  • Muhammad Kamran Rauf and
  • Jin-Ming Lin

Heavy metal ion (HMI) contamination poses significant threats to public health and environmental safety, necessitating advanced detection technologies that are rapid, sensitive, and field-deployable. While conventional methods like atomic absorption...

  • Article
  • Open Access
1,270 Views
12 Pages

Organophosphate pesticides (OPs) enter the environment through various avenues, posing significant health risks. This highlights the need to monitor OPs in food and environmental samples. This study introduces an enzyme inhibition-mediated distance-b...

  • Review
  • Open Access
3 Citations
2,604 Views
18 Pages

Engineered Intelligent Electrochemical Biosensors for Portable Point-of-Care Diagnostics

  • Jiamin Lin,
  • Yuanyuan Chen,
  • Xiaohui Liu,
  • Hui Jiang and
  • Xuemei Wang

The development of cost-effective, rapid-response, and user-friendly biosensing platforms has become paramount importance for achieving precise biomarker quantification in early disease detection. Implementing timely diagnostic interventions through...

  • Review
  • Open Access
5 Citations
1,647 Views
40 Pages

Luminescent Pyrene-Derivatives for Hg2+ and Explosive Detection

  • Muthaiah Shellaiah,
  • Kien-Wen Sun,
  • K. Anandan,
  • Arumugam Murugan,
  • Vijayaraj Venkatachalam,
  • Mayank Bhushan,
  • Mani Sivakumar,
  • E. Manikandan,
  • Kumaravel Kaliaperumal and
  • Wen-Tai Li

Mercury and explosives are well-known hazards that affect the environment and threaten society. Mercury generally exists as inorganic mercuric (Hg2+) salts, and its detection via fluorometric response is highly notable. Likewise, mainstream explosive...

  • Article
  • Open Access
652 Views
10 Pages

The monitoring of contaminants in imitation jewelry has become important nowadays due to the high amount of products sold worldwide. Due to the complexity of the sample matrix (composed mainly of metals in high concentration), sample analysis can be...

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Chemosensors - ISSN 2227-9040