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Surfaces, Volume 5, Issue 1

March 2022 - 15 articles

Cover Story: The severe acute respiratory syndrome originating from the new coronavirus that emerged in late 2019 caused the COVID-19 global pandemic outbreak. To meet the demand for effective diagnostic tools for the detection of COVID-19 antibodies, we have developed a diagnostic on a chip platform based on a disposable electrochemical biosensor of laser-induced graphene electrodes functionalized with SARS-CoV-2 specific antigens coupled to a portable microcontrolled potentiostat. The device exhibited fast identification in blood serum reactive and non-reactive for anti-SARS-CoV-2 antibodies, with an estimated analysis processing time of 3 min. The system is a promising diagnosis tool for accurate monitoring of SARS-CoV-2 infection and can help to control the population’s immune response to vaccines. View this paper
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Articles (15)

  • Article
  • Open Access
8 Citations
4,098 Views
10 Pages

4 March 2022

Detection of explosives is vital for protection and criminal investigations, and developing novel explosives’ sensors stands at the forefront of the analytical and forensic chemistry endeavors. Due to the presence of terminal nitro groups that...

  • Article
  • Open Access
42 Citations
4,318 Views
9 Pages

The Negative Photoconductivity of Ag/AgO Grown by Spray-Pyrolysis

  • Aline Bastos de Paiva,
  • Luis Miguel Bolaños Vargas,
  • Matheus José da Silva,
  • Ariano De Giovanni Rodrigues,
  • Demétrio A. W. Soares,
  • Marcelos Lima Peres and
  • Marcio Peron Franco de Godoy

2 March 2022

The main goal of this work is to provide a general description of the negative photoconductivity effect observed in Ag/AgO films grown by the spray-pyrolysis technique. X-ray diffractograms display hybrid films with high texturized AgO and metallic A...

  • Article
  • Open Access
7 Citations
3,984 Views
7 Pages

Eco-Friendly Synthesis of Silver Nanoparticles Using Pulsed Plasma in Liquid: Effect of Surfactants

  • Yubiao Niu,
  • Emil Omurzak,
  • Rongsheng Cai,
  • Dinara Syrgakbek kyzy,
  • Zhanarbek Zhasnakunov,
  • Abduraim Satyvaldiev and
  • Richard E. Palmer

2 March 2022

Silver (Ag) nanoparticles were successfully prepared by using the in-liquid pulsed plasma technique. This method is based on a low voltage, pulsed spark discharge in a dielectric liquid. We explore the effect of the protecting ligands, specifically C...

  • Article
  • Open Access
29 Citations
6,600 Views
15 Pages

Electrochemical Biosensor Based on Laser-Induced Graphene for COVID-19 Diagnosing: Rapid and Low-Cost Detection of SARS-CoV-2 Biomarker Antibodies

  • Marcely Echeverria Oliveira,
  • Bruno Vasconcellos Lopes,
  • Jéssica Helisa Hautrive Rossato,
  • Guilherme Kurz Maron,
  • Betty Braga Gallo,
  • Andrei Borges La Rosa,
  • Raphael Dorneles Caldeira Balboni,
  • Mariliana Luiza Ferreira Alves,
  • Marcos Roberto Alves Ferreira and
  • Luciano da Silva Pinto
  • + 5 authors

1 March 2022

The severe acute respiratory syndrome originated by the new coronavirus (SARS-CoV-2) that emerged in late 2019, known to be a highly transmissible and pathogenic disease, has caused the COVID-19 global pandemic outbreak. Thus, diagnostic devices that...

  • Article
  • Open Access
10 Citations
2,922 Views
10 Pages

15 February 2022

Nanoscale surface topographies mediated with biochemical cues influence the differentiation of stem cells into different lineages. This research focuses on the adsorption behavior of bone morphogenetic protein (BMP-2) on nanopatterned gold substrates...

  • Article
  • Open Access
3,402 Views
11 Pages

Ultra-Sensitive Immuno-Sensing Platform Based on Gold-Coated Interdigitated Electrodes for the Detection of Parathion

  • Shalini Nagabooshanam,
  • Souradeep Roy,
  • Shikha Wadhwa,
  • Ashish Mathur,
  • Satheesh Krishnamurthy and
  • Lalit Mohan Bharadwaj

12 February 2022

Pesticides are unavoidable in agriculture to protect crops from pests and insects. Organophosphates (OPs) are a class of pesticides that are more harmful because of the irreversible inhibition reaction with acetylcholinesterase enzyme, thereby posing...

  • Article
  • Open Access
4 Citations
5,609 Views
10 Pages

Wafer-Scale Polishing of Polycrystalline MPACVD-Diamond

  • Xuerun Huang,
  • Changjie Zhou,
  • Bo Wu,
  • Zhiming Geng and
  • Xing Zhang

3 February 2022

Diamond offers great potential for use as a thermal spreader in various applications, including power electronics and radio-frequency (RF) applications. However, to be used as an efficient thermal spreader, the atomically smooth surface of the diamon...

  • Article
  • Open Access
1 Citations
4,131 Views
12 Pages

1 February 2022

Mechanochemistry initiated the reaction of hydrogen-terminated porous silicon (H/por-Si) powder with arginine. Samples were analyzed using Fourier-transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), zeta potential, scanning electr...

  • Article
  • Open Access
10 Citations
4,175 Views
16 Pages

Tunning the Gas Sensing Properties of rGO with In2O3 Nanoparticles

  • Bruno S. de Lima,
  • Amanda A. Komorizono,
  • Amadou L. Ndiaye,
  • Maria Inês B. Bernardi,
  • Jérôme Brunet and
  • Valmor R. Mastelaro

21 January 2022

Here, we discuss the effect of In2O3 nanoparticles on the reduced graphene oxide (rGO) gas-sensing potentialities. In2O3 nanoparticles were prepared with the polymer precursors method, while the nanocomposites were prepared by mixing an In2O3 nanopar...

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Surfaces - ISSN 2571-9637