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Biosensors, Volume 11, Issue 7

July 2021 - 41 articles

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Cover Story: Three enhanced techniques of lateral flow immunoassay for the SARS-CoV-2 antigen (receptor-binding domain) were compared with a conventional assay. The enhancements are based on in situ enlargement of Au nanoparticles (NPs) via the formation of: (i) Ag shell around Au NPs; (ii) Ag shell around Au NPs with the following galvanic replacement of Ag atoms by HAuCl4; (iii) Au shell around Au NPs. The third technique provides a minimal limit of detection, being 500 times more sensitive than the conventional assay. View this paper.

Articles (41)

  • Article
  • Open Access
3 Citations
3,673 Views
13 Pages

Sensing Hydration of Biomimetic Cell Membranes

  • Madhurima Chattopadhyay,
  • Hanna Orlikowska,
  • Emilia Krok and
  • Lukasz Piatkowski

16 July 2021

Biological membranes play a vital role in cell functioning, providing structural integrity, controlling signal transduction, and controlling the transport of various chemical species. Owing to the complex nature of biomembranes, the self-assembly of...

  • Article
  • Open Access
11 Citations
4,046 Views
12 Pages

Novel Portable Sensing System with Integrated Multifunctionality for Accurate Detection of Salivary Uric Acid

  • Ziqi Liu,
  • Yiyin Chen,
  • Meng Zhang,
  • Tiancheng Sun,
  • Keer Li,
  • Songjia Han and
  • Hui-Jiuan Chen

16 July 2021

Uric acid, as the terminal product of purine metabolism in the body, is an important marker of many diseases. Uric acid is abundant in saliva, offering the possibility of its non-invasive detection. However, it is sensitive to interference in saliva...

  • Article
  • Open Access
6 Citations
3,326 Views
19 Pages

A Sarcopenia Detection System Using an RGB-D Camera and an Ultrasound Probe: Eye-in-Hand Approach

  • Yeoun-Jae Kim,
  • Jueun Choi,
  • Jungwoo Moon,
  • Kyung Rim Sung and
  • Jaesoon Choi

16 July 2021

Skeletal muscle mass deficiency and quality degradation constitute sarcopenia for elderly people. Sarcopenia can result in musculoskeletal damage and accompany various metabolic problems, which make early sarcopenia diagnosis important. Various modal...

  • Review
  • Open Access
39 Citations
7,109 Views
26 Pages

15 July 2021

Electrochemical biosensors have potential applications for agriculture, food safety, environmental monitoring, sports medicine, biomedicine, and other fields. One of the primary challenges in this field is the immobilization of biomolecular probes at...

  • Article
  • Open Access
1 Citations
3,345 Views
11 Pages

Development of the Sensing Platform for Protein Tyrosine Kinase Activity

  • Lan-Yi Wei,
  • Wei Lin,
  • Bey-Fen Leo,
  • Lik-Voon Kiew,
  • Chia-Ching Chang and
  • Chiun-Jye Yuan

15 July 2021

A miniature tyrosinase-based electrochemical sensing platform for label-free detection of protein tyrosine kinase activity was developed in this study. The developed miniature sensing platform can detect the substrate peptides for tyrosine kinases, s...

  • Article
  • Open Access
10 Citations
4,160 Views
17 Pages

Gold–Oligonucleotide Nanoconstructs Engineered to Detect Conserved Enteroviral Nucleic Acid Sequences

  • Veeren M. Chauhan,
  • Mohamed M. Elsutohy,
  • C. Patrick McClure,
  • William L. Irving,
  • Neil Roddis and
  • Jonathan W. Aylott

14 July 2021

Enteroviruses are ubiquitous mammalian pathogens that can produce mild to life-threatening disease. We developed a multimodal, rapid, accurate and economical point-of-care biosensor that can detect nucleic acid sequences conserved amongst 96% of all...

  • Article
  • Open Access
3 Citations
3,505 Views
11 Pages

Development of an Immunoassay for the Detection of Copper Residues in Pork Tissues

  • Junqiu Zhang,
  • Liwei Xu,
  • Hongtao Jiang,
  • Chuanlai Xu,
  • Wenjing Liu,
  • Ting Wu and
  • Hua Kuang

13 July 2021

The presence of high concentrations of copper (Cu) residues in pork is highly concerning and therefore, this study was designed to develop a high-throughput immunoassay for the detection of such residues in edible pork tissues. The Cu content in the...

  • Communication
  • Open Access
15 Citations
3,876 Views
14 Pages

Nanoribbon-Based Electronic Detection of a Glioma-Associated Circular miRNA

  • Yuri D. Ivanov,
  • Kristina A. Malsagova,
  • Vladimir P. Popov,
  • Tatyana O. Pleshakova,
  • Andrey F. Kozlov,
  • Rafael A. Galiullin,
  • Ivan D. Shumov,
  • Svetlana I. Kapustina,
  • Fedor V. Tikhonenko and
  • Vadim S. Ziborov
  • + 9 authors

13 July 2021

Nanoribbon chips, based on “silicon-on-insulator” structures (SOI-NR chips), have been fabricated. These SOI-NR chips, whose surface was sensitized with covalently immobilized oligonucleotide molecular probes (oDNA probes), have been employed for the...

  • Article
  • Open Access
74 Citations
7,102 Views
17 Pages

13 July 2021

Paper-based biosensors are considered simple and cost-efficient sensing platforms for analytical tests and diagnostics. Here, a paper-based electrochemical biosensor was developed for the rapid and sensitive detection of microRNAs (miRNA-155 and miRN...

  • Article
  • Open Access
12 Citations
6,436 Views
11 Pages

11 July 2021

One of the most important chemicals used in the production of polymer plastics and coatings is bisphenol A. However, despite the large number of studies on the toxicity and hormonal activity of BPA, there are still open questions and thus considerabl...

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Biosensors - ISSN 2079-6374Creative Common CC BY license