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Nanomaterials
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Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing
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Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 17787

Special Issue Editor

Dr. Seong Jung Kwon

E-Mail Website
Guest Editor
Department of Chemistry, Konkuk University, Seoul, Republic of Korea
Interests: single nanoparticle electrochemistry; electrochemical biosensor; electrochemical reaction for energy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will focus on all aspects of electrochemical sensing and nano-bio sensing strategies using nanomaterials. Papers of interest include but are not limited to: the latest information, ideas, and experiences in (1) electrocatalytic functionalization or signal amplification using many types of nanomaterials, including metal nanoparticles, semiconductor nanoparticles, carbon-based nanomaterials, nanowires, liposomes, and silica nanoparticles; (2) localized electrochemistry within the nanometer scale, including fabrication and characterization of nanoelectrode, electrochemical measurement of collision between nanomaterials and electrodes, electrochemistry of immobilized single nanomaterials, electrochemistry of nanopipette and redox cycling within nanopores; (3) physics and chemistry of sensor and actuator materials, fabrication, and characterization of novel compositions using nanomaterials; (4) novel sensor and actuator concepts, design, modeling, and verification, system integration and actuating functions with nanomaterial.

Dr. Seong Jung Kwon
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • single nanoparticle electrochemistry
  • electrochemical biosensor
  • electrochemical amplification

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Published Papers (6 papers)

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Editorial

Jump to: Research, Review

2 pages, 158 KiB  
Editorial
Special Issue: Recent Advances in Nanomaterials for Electrochemical Sensing and Nano-Biosensing
by Seong Jung Kwon
Nanomaterials 2023, 13(8), 1333; https://doi.org/10.3390/nano13081333 - 11 Apr 2023
Cited by 2 | Viewed by 1220
Abstract
Nanomaterials have been instrumental in the development of electrochemical nano-biosensors, offering high sensitivity and selectivity [...] Full article
(This article belongs to the Special Issue Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing)

Research

Jump to: Editorial, Review

9 pages, 1085 KiB  
Article
Observation and Analysis of Staircase Response of Single Palladium Nanoparticle Collision on Gold Ultramicroelectrodes
by Hubert Rudakemwa, Ki Jun Kim, Tae Eun Park, Hyeryeon Son, Jaedo Na and Seong Jung Kwon
Nanomaterials 2022, 12(18), 3095; https://doi.org/10.3390/nano12183095 - 7 Sep 2022
Cited by 4 | Viewed by 1731
Abstract
Collision (or impact) of single palladium nanoparticles (Pd NPs) on gold (Au), copper (Cu), nickel (Ni), and platinum (Pt) ultramicroelectrodes (UMEs) were investigated via electrocatalytic amplification method. Unlike the blip responses of previous Pd NP collision studies, the staircase current response was obtained [...] Read more.
Collision (or impact) of single palladium nanoparticles (Pd NPs) on gold (Au), copper (Cu), nickel (Ni), and platinum (Pt) ultramicroelectrodes (UMEs) were investigated via electrocatalytic amplification method. Unlike the blip responses of previous Pd NP collision studies, the staircase current response was obtained with the Au UME. The current response, including collision frequency and peak magnitude, was analyzed depending on the material of the UME and the applied potential. Adsorption factors implying the interaction between the Pd NP and the UMEs are suggested based on the experimental results. Full article
(This article belongs to the Special Issue Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing)
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18 pages, 5133 KiB  
Article
Construction of Electrochemical and Photoelectrochemical Sensing Platform Based on Porphyrinic Metal-Organic Frameworks for Determination of Ascorbic Acid
by Xin Xu, Chuan-Hua Li, Hong Zhang and Xi-Ming Guo
Nanomaterials 2022, 12(3), 482; https://doi.org/10.3390/nano12030482 - 29 Jan 2022
Cited by 23 | Viewed by 4127
Abstract
Highly sensitive and specific detection of biomolecular markers is of great importance to the diagnosis and treatment of related diseases. Herein, Cu-TCPP@MOFs thin films were synthesized with tetrakis(4-carboxyphenyl) porphyrin (H2TCPP) as organic ligands and copper ions as metal nodes. The as-synthesized [...] Read more.
Highly sensitive and specific detection of biomolecular markers is of great importance to the diagnosis and treatment of related diseases. Herein, Cu-TCPP@MOFs thin films were synthesized with tetrakis(4-carboxyphenyl) porphyrin (H2TCPP) as organic ligands and copper ions as metal nodes. The as-synthesized Cu-TCPP@MOFs thin films as electrode modifiers were used to modify the pre-treated glassy carbon electrode (GCE) and the electrochemical performances of Cu-TCPP@MOFs/GCE were evaluated by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). Furthermore, as the working electrode, the constructed Cu-TCPP@MOFs/GCE was used for the investigation of ascorbic acid (AA) due to its outstanding electrocatalytic activities towards AA by several electrochemical methods, including cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry (CA). The well-linear relationship was established based on different AA concentration ranges and the ideal detection limits (LOD) were obtained in the above-mentioned electrochemical methods, respectively. Furthermore, a Cu-TCPP MOFs@GCE sensing platform was used as a photoelectrochemical (PEC) sensor to quantitatively detect AA based on the strong absorption properties of Cu-TCPP ingredients in Cu-TCPP MOFs in a visible light band of 400~700 nm. PEC sensing platform based on Cu-TCPP@MOFs exhibited a more extensive linear concentration range, more ideal detection limit, and better sensitivity relative than the other electrochemical methods for AA. The well linear regression equations were established between the peak current intensity and AA concentrations in different electrochemical technologies, including CV, DPV, and CA, and PEC technology. AA concentration ranges applicable to various electrochemical equations were as follows: 0.45~2.10 mM of CV, 0.75~2.025 mM of DPV, 0.3~2.4 mM of CA, 7.5~480 μM of PEC, and the corresponding detection limits for AA were 1.08 μM (S/N = 3), 0.14 μM (S/N = 3), 0.049 μM (S/N = 3), and 0.084 nA/μM. Moreover, the proposed Cu-TCPP MOFs@GCE electrochemical and photoelectrochemical sensing platform was applied to determine the AA concentration of a real human serum sample; the results reveal that Cu-TCPP MOFs@GCE sensing platform could accurately determine the concentration of AA of the human serum under other potential interferences contained in the human serum samples. Full article
(This article belongs to the Special Issue Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing)
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Review

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28 pages, 3523 KiB  
Review
Nano- and Microsensors for In Vivo Real-Time Electrochemical Analysis: Present and Future Perspectives
by Alexander N. Vaneev, Roman V. Timoshenko, Petr V. Gorelkin, Natalia L. Klyachko, Yuri E. Korchev and Alexander S. Erofeev
Nanomaterials 2022, 12(21), 3736; https://doi.org/10.3390/nano12213736 - 25 Oct 2022
Cited by 11 | Viewed by 3083
Abstract
Electrochemical nano- and microsensors have been a useful tool for measuring different analytes because of their small size, sensitivity, and favorable electrochemical properties. Using such sensors, it is possible to study physiological mechanisms at the cellular, tissue, and organ levels and determine the [...] Read more.
Electrochemical nano- and microsensors have been a useful tool for measuring different analytes because of their small size, sensitivity, and favorable electrochemical properties. Using such sensors, it is possible to study physiological mechanisms at the cellular, tissue, and organ levels and determine the state of health and diseases. In this review, we highlight recent advances in the application of electrochemical sensors for measuring neurotransmitters, oxygen, ascorbate, drugs, pH values, and other analytes in vivo. The evolution of electrochemical sensors is discussed, with a particular focus on the development of significant fabrication schemes. Finally, we highlight the extensive applications of electrochemical sensors in medicine and biological science. Full article
(This article belongs to the Special Issue Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing)
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22 pages, 2586 KiB  
Review
Recent Advances in Monitoring Stem Cell Status and Differentiation Using Nano-Biosensing Technologies
by Wijin Kim, Eungyeong Park, Hyuk Sang Yoo, Jongmin Park, Young Mee Jung and Ju Hyun Park
Nanomaterials 2022, 12(17), 2934; https://doi.org/10.3390/nano12172934 - 25 Aug 2022
Cited by 8 | Viewed by 3228
Abstract
In regenerative medicine, cell therapies using various stem cells have received attention as an alternative to overcome the limitations of existing therapeutic methods. Clinical applications of stem cells require the identification of characteristics at the single-cell level and continuous monitoring during expansion and [...] Read more.
In regenerative medicine, cell therapies using various stem cells have received attention as an alternative to overcome the limitations of existing therapeutic methods. Clinical applications of stem cells require the identification of characteristics at the single-cell level and continuous monitoring during expansion and differentiation. In this review, we recapitulate the application of various stem cells used in regenerative medicine and the latest technological advances in monitoring the differentiation process of stem cells. Single-cell RNA sequencing capable of profiling the expression of many genes at the single-cell level provides a new opportunity to analyze stem cell heterogeneity and to specify molecular markers related to the branching of differentiation lineages. However, this method is destructive and distorted. In addition, the differentiation process of a particular cell cannot be continuously tracked. Therefore, several spectroscopic methods have been developed to overcome these limitations. In particular, the application of Raman spectroscopy to measure the intrinsic vibration spectrum of molecules has been proposed as a powerful method that enables continuous monitoring of biochemical changes in the process of the differentiation of stem cells. This review provides a comprehensive overview of current analytical methods employed for stem cell engineering and future perspectives of nano-biosensing technologies as a platform for the in situ monitoring of stem cell status and differentiation. Full article
(This article belongs to the Special Issue Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing)
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Graphical abstract

14 pages, 1743 KiB  
Review
Recent Advances of Nanomaterials-Based Molecularly Imprinted Electrochemical Sensors
by Xinning Dong, Congcong Zhang, Xin Du and Zhenguo Zhang
Nanomaterials 2022, 12(11), 1913; https://doi.org/10.3390/nano12111913 - 3 Jun 2022
Cited by 20 | Viewed by 3768
Abstract
Molecularly imprinted polymer (MIP) is illustrated as an analogue of a natural biological antibody-antigen system. MIP is an appropriate substrate for electrochemical sensors owing to its binding sites, which match the functional groups and spatial structure of the target analytes. However, the irregular [...] Read more.
Molecularly imprinted polymer (MIP) is illustrated as an analogue of a natural biological antibody-antigen system. MIP is an appropriate substrate for electrochemical sensors owing to its binding sites, which match the functional groups and spatial structure of the target analytes. However, the irregular shapes and slow electron transfer rate of MIP limit the sensitivity and conductivity of electrochemical sensors. Nanomaterials, famous for their prominent electron transfer capacity and specific surface area, are increasingly employed in modifications of MIP sensors. Staying ahead of traditional electrochemical sensors, nanomaterials-based MIP sensors represent excellent sensing and recognition capability. This review intends to illustrate their advances over the past five years. Current limitations and development prospects are also discussed. Full article
(This article belongs to the Special Issue Recent Advances of Nanomaterials for Electrochemical and Nano-Bio Sensing)
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