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Biosensors, Volume 12, Issue 7

July 2022 - 118 articles

Cover Story: In this study, the development of the first electrochemical aptasensor for the detection of 3-O-C12-HSL is reported. A carbon-based screen-printed electrode modified with gold nanoparticles proved to be the best platform for the aptasensor. Each step in the fabrication of the aptasensor (i.e., the deposition of gold nanoparticles, aptamer immobilization, and incubation with the analyte) was optimized and characterized using cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectroscopy. Different redox probes were evaluated in the solution, with the best results being obtained in the presence of [Fe(CN)6]4−/[Fe(CN)6]3−. The binding affinity of 106.7 nM for the immobilized thiol-terminated aptamer was determined using surface plasmon resonance. View this paper
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Articles (118)

  • Article
  • Open Access
8 Citations
3,539 Views
23 Pages

21 July 2022

Many studies have explored divergent deep neural networks in human activity recognition (HAR) using a single accelerometer sensor. Multiple types of deep neural networks, such as convolutional neural networks (CNN), long short-term memory (LSTM), or...

  • Review
  • Open Access
79 Citations
9,451 Views
31 Pages

Recent Advancements in Electrochemical Biosensors for Monitoring the Water Quality

  • Yun Hui,
  • Zhaoling Huang,
  • Md Eshrat E. Alahi,
  • Anindya Nag,
  • Shilun Feng and
  • Subhas Chandra Mukhopadhyay

21 July 2022

The release of chemicals and microorganisms from various sources, such as industry, agriculture, animal farming, wastewater treatment plants, and flooding, into water systems have caused water pollution in several parts of our world, endangering aqua...

  • Review
  • Open Access
10 Citations
3,706 Views
14 Pages

Plasmonic Approaches for the Detection of SARS-CoV-2 Viral Particles

  • Sabine Szunerits,
  • Hiba Saada,
  • Quentin Pagneux and
  • Rabah Boukherroub

21 July 2022

The ongoing highly contagious Coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), underlines the fundamental position of diagnostic testing in outbreak control by allowing a distinctio...

  • Review
  • Open Access
85 Citations
6,926 Views
29 Pages

21 July 2022

Aggregation-induced emission (AIE) is a unique research topic and property that can lead to a wide range of applications, including cellular imaging, theranostics, analyte quantitation and the specific detection of biologically important species. Tow...

  • Article
  • Open Access
10 Citations
3,401 Views
14 Pages

21 July 2022

Red blood cell sedimentation has been used as a promising indicator of hematological diseases and disorders. However, to address several issues (i.e., syringe installation direction, blood on-off flow control, image-based quantification, and hemodilu...

  • Article
  • Open Access
8 Citations
3,664 Views
16 Pages

A Neural Sensor with a Nanocomposite Interface for the Study of Spike Characteristics of Hippocampal Neurons under Learning Training

  • Shihong Xu,
  • Yu Deng,
  • Jinping Luo,
  • Yaoyao Liu,
  • Enhui He,
  • Yan Yang,
  • Kui Zhang,
  • Longze Sha,
  • Yuchun Dai and
  • Tao Ming
  • + 5 authors

21 July 2022

Both the cellular- and population-level properties of involved neurons are essential for unveiling the learning and memory functions of the brain. To give equal attention to these two aspects, neural sensors based on microelectrode arrays (MEAs) have...

  • Article
  • Open Access
17 Citations
3,375 Views
11 Pages

A Polypyrrole/Nanoclay Hybrid Film for Ultra-Sensitive Cardiac Troponin T Electrochemical Immunosensor

  • Vicente P. A. Landim,
  • Marcos V. Foguel,
  • Cecília M. Prado,
  • Maria P. T. Sotomayor,
  • Iolanda C. Vieira,
  • Bárbara V. M. Silva and
  • Rosa F. Dutra

21 July 2022

An electrochemical immunosensor based on a nanohybrid film of carboxylated polypyrrole and amine nanoclay was developed for label-free detection of the human cardiac troponin T (cTnT). The nanohybrid film was formed in situ on the surface of the glas...

  • Article
  • Open Access
15 Citations
3,625 Views
12 Pages

RhB@MOF-5 Composite Film as a Fluorescence Sensor for Detection of Chilled Pork Freshness

  • Jingyi Li,
  • Ning Zhang,
  • Xin Yang,
  • Xinting Yang,
  • Zengli Wang and
  • Huan Liu

20 July 2022

This study presents a novel composite thin film based on rhodamine B encapsulated into MOF-5 (Metal Organic Frameworks) as a fluorescence sensor for the real-time detection of the freshness of chilled pork. The composite film can adsorb and respond t...

  • Review
  • Open Access
218 Citations
23,378 Views
25 Pages

Biosensors and Microfluidic Biosensors: From Fabrication to Application

  • Madhusudan B. Kulkarni,
  • Narasimha H. Ayachit and
  • Tejraj M. Aminabhavi

20 July 2022

Biosensors are ubiquitous in a variety of disciplines, such as biochemical, electrochemical, agricultural, and biomedical areas. They can integrate various point-of-care applications, such as in the food, healthcare, environmental monitoring, water q...

  • Article
  • Open Access
35 Citations
3,701 Views
15 Pages

HCTNet: A Hybrid ConvNet-Transformer Network for Retinal Optical Coherence Tomography Image Classification

  • Zongqing Ma,
  • Qiaoxue Xie,
  • Pinxue Xie,
  • Fan Fan,
  • Xinxiao Gao and
  • Jiang Zhu

20 July 2022

Automatic and accurate optical coherence tomography (OCT) image classification is of great significance to computer-assisted diagnosis of retinal disease. In this study, we propose a hybrid ConvNet-Transformer network (HCTNet) and verify the feasibil...

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Biosensors - ISSN 2079-6374