Screen-printed conductive carbon layers for dye-sensitized solar cells and electrochemical detection of dopamine

Hatala, Michal; Gemeiner, Pavol; Lorencová, Lenka; Mikula, Milan; Hvojník, Matej; Pavličková, Michaela; Ház, Aleš; Kosnáč, Daniel; Bertók, Tomáš; Tkáč, Ján

doi:10.1007/s11696-021-01601-2

Cited by 13 publications

(9 citation statements)

References 40 publications

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“…Although graphene can improve the electrical conductivity of composite materials, it also causes very high capacitive currents from SPCEs (>1 µA). To minimize these effects, a potential must be fixed during electrochemical measurements, and the capacitive current contribution is minimized; therefore, the analytical detection was developed using the amperometric technique [ 15 , 46 , 47 , 48 ].…”

Section: Resultsmentioning

confidence: 99%

“…The biosensor assembly steps, and the detection of IgG-SARS-CoV-2 antibodies are shown in Scheme 1 . Before the electrode modification, the carbon surface was electrochemically activated with five cycles of CV at a potential range between +1 and −1.5 V and a scan rate of 100 mV s −1 in a solution of 0.5 mol L −1 H 2 SO 4 [ 15 , 16 , 17 ]. Then, the surface of the working electrode (WE) of the SPCE was modified with three layers of CG, with 2 mg mL −1 of CG solution deposited by drop-casting, and dried at 60 °C, in which the process was repeated 3 times.…”

Section: Methodsmentioning

confidence: 99%

“…Considered to be an excellent tool for diagnostics, a screen-printed carbon electrode (SPCE) provides lab to market capability for many biosensors [ 10 , 11 , 12 ]. This electrode can also provide an inexpensive, disposable kit for detecting in a simple and fast way, in addition to quantitatively analyzing biomolecules in a sample matrix [ 13 , 14 , 15 ]. Different matrices of materials can be applied to improve the performance characteristics of a biosensor and to immobilize biomolecules on the electrode surfaces [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

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An Electrochemical Immunosensor Based on Carboxylated Graphene/SPCE for IgG-SARS-CoV-2 Nucleocapsid Determination

Freire

Ruzo

Salgado³

et al. 2022

Biosensors

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The COVID-19 pandemic has emphasized the importance and urgent need for rapid and accurate diagnostic tests for detecting and screening this infection. Our proposal was to develop a biosensor based on an ELISA immunoassay for monitoring antibodies against SARS-CoV-2 in human serum samples. The nucleocapsid protein (N protein) from SARS-CoV-2 was employed as a specific receptor for the detection of SARS-CoV-2 nucleocapsid immunoglobulin G. N protein was immobilized on the surface of a screen-printed carbon electrode (SPCE) modified with carboxylated graphene (CG). The percentage of IgG-SARS-CoV-2 nucleocapsid present was quantified using a secondary antibody labeled with horseradish peroxidase (HRP) (anti-IgG-HRP) catalyzed using 3,3′,5,5′-tetramethylbenzidine (TMB) mediator by chronoamperometry. A linear response was obtained in the range of 1:1000–1:200 v/v in phosphate buffer solution (PBS), and the detection limit calculated was 1:4947 v/v. The chronoamperometric method showed electrical signals directly proportional to antibody concentrations due to antigen-antibody (Ag-Ab) specific and stable binding reaction.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Electrochemical Immunosensor Based on Carboxylated Graphene/SPCE for IgG-SARS-CoV-2 Nucleocapsid Determination

Freire

Ruzo

Salgado³

et al. 2022

Biosensors

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“…The highest conversion efficiency achieved for the high temperature processed counter electrodes was 3.05% with a fill factor of 0.65. [ 62 ] Crystal growth in drop‐cast MAPbI 3 films was regulated by adjusting the temperature. A mechanism for the formation of different morphologies has been proposed by combining in situ crystal growth studies using X‐ray diffraction techniques (XRD).…”

Section: Printing Techniques For Pscsmentioning

confidence: 99%

Recent Development and Directions in Printed Perovskite Solar Cells

Samantaray

Parida

Soga

et al. 2022

Physica Status Solidi (a)

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Just over a decade ago, perovskite solar cells (PSCs) established themselves as the next generation of photovoltaic technology due to their comparably higher power conversion efficiency (PCE) (25.6%), cheaper and simpler manufacturing processes to that of Silicon solar cells. Based on the potential, several methods and processes have been developed to produce high-quality perovskite films for commercialization of PSCs. It has recently been found that printing technology is very effective in controlling film formation, resulting in a high PCE of over 21%. This review summarizes the intense research that has been done on newer printing techniques to enlarge perovskite films and other layers such as the hole transport layer (HTL), the electron transport layer (ETL), and electrodes for PSCs. At the end, the review article describes the future scope of research to address the challenges of commercializing PSCs.

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“…CCS(n) as a carbon allotrope is assumed to have wide a range of industrial applications. For more study on carbon allotropes one can refer [6,9].…”

Section: Origin Of Crystal Cubic Carbon Structure Ccs(n)mentioning

confidence: 99%

Edge Resolvability of Crystal Cubic Carbon Structure

Sharma¹,

Bhat²,

Lal³

2022

Preprint

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Chemical graph theory is commonly used to analyse and comprehend chemical structures and networks, as well as their features. The resolvability parameters for graph G= (V, E) are a relatively new advanced field in which the complete structure is built so that each vertex (atom) or edge (bond) represents a distinct position. In this article, we study the resolvability parameters i.e., edge resolvability of chemical graph of crystal structure of cubic carbon CCS(n).

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Screen-printed conductive carbon layers for dye-sensitized solar cells and electrochemical detection of dopamine

Cited by 13 publications

References 40 publications

An Electrochemical Immunosensor Based on Carboxylated Graphene/SPCE for IgG-SARS-CoV-2 Nucleocapsid Determination

An Electrochemical Immunosensor Based on Carboxylated Graphene/SPCE for IgG-SARS-CoV-2 Nucleocapsid Determination

Recent Development and Directions in Printed Perovskite Solar Cells

Edge Resolvability of Crystal Cubic Carbon Structure

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