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Chemosensors, Volume 10, Issue 11

November 2022 - 58 articles

Cover Story: GC and MS are widely used techniques in the analysis of complex mixtures due to their various advantages. However, data processing is often complex, time-consuming and requires a great deal of experience, which might be a serious drawback in certain areas. For these reasons, some authors have proposed the use of alternative data processing approaches, such as the TIC or TIMS, allowing these techniques to be treated as sensors where each retention time or ratio m/z acts as a sensor collecting total intensities. In this way, the main advantages associated with both techniques are maintained, but the outcomes from the analysis can be reached in a faster, simpler and almost automated way. In this review, the main features of the GC- and MS-based analysis methodologies and the ways in which to apply them are highlighted. View this paper
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Articles (58)

  • Review
  • Open Access
18 Citations
4,834 Views
30 Pages

The rapid development of sensing technology has created an urgent need for chemical sensor systems that can be rationally integrated into efficient, sustainable, and wearable electronic systems. In this case, the triboelectric nanogenerator (TENG) is...

  • Article
  • Open Access
11 Citations
3,736 Views
15 Pages

Optimizing the Heavy Metal Ion Sensing Properties of Functionalized Silver Nanoparticles: The Role of Surface Coating Density

  • Andrea Rossi,
  • Massimiliano Cuccioloni,
  • Lisa Rita Magnaghi,
  • Raffaela Biesuz,
  • Marco Zannotti,
  • Laura Petetta,
  • Mauro Angeletti and
  • Rita Giovannetti

We present a colorimetric sensor based on functionalized silver nanoparticles for the detection of metal ions in aqueous solutions. The interaction between the target metal ion and the functionalizing agent triggers the aggregation of these nanoparti...

  • Review
  • Open Access
21 Citations
4,044 Views
18 Pages

Recent Advances in Gas Sensing Technology Using Non-Oxide II-VI Semiconductors CdS, CdSe, and CdTe

  • Masanori Ando,
  • Hideya Kawasaki,
  • Satoru Tamura,
  • Yoshikazu Haramoto and
  • Yasushi Shigeri

In recent years, there has been an increasing need and demand for gas sensors to detect hazardous gases in the atmosphere, as they are indispensable for environmental monitoring. Typical hazardous gas sensors that have been widely put to practical us...

  • Article
  • Open Access
2 Citations
2,360 Views
14 Pages

Porphyrin Hetero-Trimer Involving a Hydrophilic and a Hydrophobic Structure with Application in the Fluorescent Detection of Toluidine Blue

  • Anca Lascu,
  • Camelia Epuran,
  • Ion Fratilescu,
  • Mihaela Birdeanu,
  • Liliana Halip and
  • Eugenia Fagadar-Cosma

The combination of a metallated porphyrin, Pt(II)-5,10,15,20-tetrakis-(4-allyloxyphenyl)-porphyrin (Pt-allyloxyPP), and a water-soluble porphyrin, 5,10,15,20-tetrakis(4-sulfonatophenyl)-porphyrin (TSPP), leads to the formation of a porphyrin hetero-t...

  • Article
  • Open Access
5 Citations
2,950 Views
11 Pages

Prediction of Diamene-Based Chemosensors

  • Danil W. Boukhvalov and
  • Vladimir Yu. Osipov

This paper presents the results of systematic studies of the atomic structure of the layered bulk, bilayer, and monolayer of diamene (a two-dimensional diamond monolayer recently synthesized by various methods) functionalized with fluorine and hydrox...

  • Article
  • Open Access
4 Citations
2,880 Views
13 Pages

Phthalocyanine-Carbon Nanotube Hybrid Materials: Mechanism of Sensor Response to Ammonia from Quantum-Chemical Point of View

  • Pavel Krasnov,
  • Victoria Ivanova,
  • Darya Klyamer,
  • Aleksandr Fedorov and
  • Tamara Basova

Quantum chemical calculations of the geometric and electronic structure of periodic hybrid compounds representing carbon nanotubes (10,0) with zinc phthalocyanine molecules ZnPc-xpy (x = 0, 1, 2, 4) on their surface and their interaction with ammonia...

  • Article
  • Open Access
8 Citations
2,622 Views
14 Pages

Development and Field Validation of Low-Cost Metal Oxide Nanosensors for Tropospheric Ozone Monitoring in Rural Areas

  • Jaime Gómez-Suárez,
  • Patricia Arroyo,
  • María Cerrato-Álvarez,
  • Esther Hontañón,
  • Sergio Masa,
  • Philippe Menini,
  • Lionel Presmanes,
  • Raimundo Alfonso,
  • Eduardo Pinilla-Gil and
  • Jesús Lozano

This work describes the technical features and the performance of two different types of metal-oxide semiconductor sensors, based on ZnO:Ga thin films and SnO2-G nanofibrous layers, for tropospheric ozone monitoring in ambient air. These nanostructur...

  • Article
  • Open Access
7 Citations
2,838 Views
14 Pages

Rational Design of Ratiometric Fluorescent Probe for Zn2+ Imaging under Oxidative Stress in Cells

  • Yaheng Li,
  • Shankun Yao,
  • Hongbao Fang,
  • Weijiang He,
  • Yuncong Chen and
  • Zijian Guo

Zn2+ is a vital ion for most of the physiological processes in the human body, and it usually has a mutual effect with oxidative stress that often occurs in pathological tissues. Detecting fluctuation of Zn2+ level in cells undergoing oxidative stres...

  • Article
  • Open Access
12 Citations
3,033 Views
18 Pages

Electronic tongues and artificial gustation for crucial analytes in the environment, such as metal ions, are becoming increasingly important. In this contribution, we propose a multi-level fusion framework for a hybrid impedimetric and voltammetric e...

  • Article
  • Open Access
4 Citations
2,374 Views
16 Pages

Energy-Efficient Chemiresistive Sensor Array Based on SWCNT Networks, WO3 Nanochannels and SWCNT-Pt Heterojunctions for NH3 Detection against the Background Humidity

  • Alexey V. Romashkin,
  • Andrey V. Lashkov,
  • Victor V. Sysoev,
  • Nikolay S. Struchkov,
  • Evgeny V. Alexandrov and
  • Denis D. Levin

Recently, promising results have been achieved in improving the sensitivity to ammonia in gas sensors through the use of structures composed of heterojunctions or nanochannels. However, their sensitivity is highly dependent on the background humidity...

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Chemosensors - ISSN 2227-9040