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Özsoylu D, Aliazizi F, Wagner P, Schöning MJ. Template bacteria-free fabrication of surface imprinted polymer-based biosensor for E. coli detection using photolithographic mimics: Hacking bacterial adhesion. Biosens Bioelectron 2024; 261:116491. [PMID: 38879900 DOI: 10.1016/j.bios.2024.116491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/18/2024]
Abstract
As one class of molecular imprinted polymers (MIPs), surface imprinted polymer (SIP)-based biosensors show great potential in direct whole-bacteria detection. Micro-contact imprinting, that involves stamping the template bacteria immobilized on a substrate into a pre-polymerized polymer matrix, is the most straightforward and prominent method to obtain SIP-based biosensors. However, the major drawbacks of the method arise from the requirement for fresh template bacteria and often non-reproducible bacteria distribution on the stamp substrate. Herein, we developed a positive master stamp containing photolithographic mimics of the template bacteria (E. coli) enabling reproducible fabrication of biomimetic SIP-based biosensors without the need for the "real" bacteria cells. By using atomic force and scanning electron microscopy imaging techniques, respectively, the E. coli-capturing ability of the SIP samples was tested, and compared with non-imprinted polymer (NIP)-based samples and control SIP samples, in which the cavity geometry does not match with E. coli cells. It was revealed that the presence of the biomimetic E. coli imprints with a specifically designed geometry increases the sensor E. coli-capturing ability by an "imprinting factor" of about 3. These findings show the importance of geometry-guided physical recognition in bacterial detection using SIP-based biosensors. In addition, this imprinting strategy was employed to interdigitated electrodes and QCM (quartz crystal microbalance) chips. E. coli detection performance of the sensors was demonstrated with electrochemical impedance spectroscopy (EIS) and QCM measurements with dissipation monitoring technique (QCM-D).
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Affiliation(s)
- Dua Özsoylu
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany
| | - Fereshteh Aliazizi
- Department of Physics and Astronomy, Laboratory for Soft Matter and Biophysics, KU Leuven, B-3001, Leuven, Belgium
| | - Patrick Wagner
- Department of Physics and Astronomy, Laboratory for Soft Matter and Biophysics, KU Leuven, B-3001, Leuven, Belgium
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Biological Information Processing (IBI-3), Research Centre Jülich GmbH, 52425, Jülich, Germany.
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2
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Xie A, Martínez-Vargas DR, Yang Z, Zou S. Efficient selenate removal from impaired waters with TiO 2-assisted electrocatalysis. WATER RESEARCH 2024; 262:122134. [PMID: 39067272 DOI: 10.1016/j.watres.2024.122134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/10/2024] [Accepted: 07/21/2024] [Indexed: 07/30/2024]
Abstract
Aquatic selenium (Se) oxyanions have profound ecosystem and human health impacts, necessitating their conversion and immobilization into elemental Se(0) to mitigate the aquatic Se pollution. While thermodynamically favorable, this transformation encounters kinetic limitations, especially for selenate (SeO42-) or Se(VI). To lower the activation barrier, we investigated the electrocatalytic Se(VI) transformation using five affordable catalysts on graphite cathodes, including TiO2, underpotentially deposited Cu (UPD Cu), underpotentially deposited Cd (UPD Cd), Co, and CuFe. Among these five catalysts, we identified characteristic Se(VI) reduction peaks for TiO2 through cyclic voltammetry. Other catalysts removed less than 5% of 1-mM Se(VI) in 24-h chronoamperometry tests while leaching ppm-level metal cations in the treated water. In contrast, TiO2 as the electrocatalyst could remove more than 80% of 1-mM Se(VI) with negligible catalyst dissolution. Mechanistic investigations revealed a six-electron Se(VI)/Se(0) reduction pathway at -0.30 V (vs. Ag/AgCl), resulting in red Se(0) deposits on the TiO2-coated graphite cathode. Further potential decrease to more negative than -0.45 V led to Se(-II) formation, triggering cathodic Se(0) dissolution and surface regeneration. Electrochemical impedance spectroscopy indicated that Se(VI) reduction was optimal with a moderate TiO2 loading of 0.55 mg cm-2 and acidic environments (pH=1.0∼2.5), achieving an optimized removal of 88.7 ± 2.3% under -0.70 V and an energy input of 3.6 kWh kg-1 Se. These findings lay the foundation for efficient selenate removal from impaired waters. Future efforts should evaluate catalyst performance over time and refine electrode and reactor designs to improve efficiency.
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Affiliation(s)
- Ao Xie
- Department of Civil and Environmental Engineering, Auburn University, Auburn, Alabama 36849, USA
| | | | - Zilan Yang
- Department of Civil and Environmental Engineering, Auburn University, Auburn, Alabama 36849, USA
| | - Shiqiang Zou
- Department of Civil and Environmental Engineering, Auburn University, Auburn, Alabama 36849, USA.
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3
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Soleimani A, Amirghasemi F, Al-Shami A, Khazaee Nejad S, Tsung A, Wang Y, Lara Galindo S, Parvin D, Olson A, Avishai A, Mousavi MPS. Towards sustainable and humane dairy farming: A low-cost electrochemical sensor for on-site diagnosis of milk fever. Biosens Bioelectron 2024; 259:116321. [PMID: 38749287 DOI: 10.1016/j.bios.2024.116321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 06/03/2024]
Abstract
Milk fever is a metabolic disorder that predominantly affects dairy animals during the periparturient period and within four weeks of calving. Milk fever is primarily attributed to a decrease in the animal's serum Ca2+ levels. Clinical milk fever occurs when Ca2+ concentration drops below 1.5 mM (6 mg/dL). Without prompt intervention, clinical milk fever leads to noticeable physical symptoms and health complications including coma and fatality. Subclinical milk fever is characterized by Ca2+ levels between 1.5 and 2.12 mM (6-8.48 mg/dL). Approximately 50% of multiparous dairy cows suffer from subclinical milk fever during the transition to lactation. The economic impact of milk fever, both direct and indirect, is substantial, posing challenges for farmers. To address this issue, we developed a low-cost electrochemical sensor that can measure bovine serum calcium levels on-site, providing an opportunity for early detection of subclinical and clinical milk fever and early intervention. This calcium sensor is a scalable solid contact ion sensing platform that incorporates a polymeric calcium-selective membrane and ionic liquid-based reference membrane into laser-induced graphene (LIG) electrodes. Our sensing platform demonstrates a sensitivity close to the theoretical Nernstian value (29.6 mV/dec) with a limit of detection of 15.6 μM and selectivity against the species in bovine serum. Moreover, our sensor can detect Ca2+ in bovine serum with 91% recovery.
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Affiliation(s)
- Ali Soleimani
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States
| | - Farbod Amirghasemi
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States
| | - Abdulrahman Al-Shami
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States
| | - Sina Khazaee Nejad
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States
| | - Alicia Tsung
- Mork Family Department of Chemical Engineering and Materials Science, Viterbi School of Engineering, University of Southern California, 925 Bloom Walk HED 216, Los Angeles, 90007, California, United States
| | - Yuxuan Wang
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States
| | - Sandra Lara Galindo
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States
| | - Delaram Parvin
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States
| | - Amber Olson
- Chaska Valley Veterinary Clinic, 115 W 3rd Street, Chaska, 55318, Minnesota, United States
| | - Amir Avishai
- Core Center for Excellence in Nano Imaging, University of Southern California, 925 Bloom Walk, Los Angeles, 90089, California, United States
| | - Maral P S Mousavi
- Alfred E. Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, 1042 Downey Way, Los Angeles, 90007, California, United States.
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4
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Hajian Z, Safavi-Mirmahalleh SA, Moghaddam AR, Roghani-Mamaqani H, Salami-Kalajahi M. Poly[poly(ethylene glycol) methacrylate]-modified starch-based solid and gel polymer electrolytes for high performance Li-ion batteries. Int J Biol Macromol 2024; 276:133893. [PMID: 39019370 DOI: 10.1016/j.ijbiomac.2024.133893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/10/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
The idea of replacing liquid electrolytes with polymer electrolytes has been successful and the development of these electrolytes has provided acceptable results. With the start of using natural polymers in the polymer industry, as well as starch, these materials can be one of the most important candidates for the polymer matrix in electrolytes. In this study, starch has been investigated as a polymer electrolyte, poly[poly(ethylene glycol) methacrylate] (PEGMA) is grafted to the starch by radical polymerization, and synthesized copolymers are used as solid polymer electrolytes (SPEs). Furthermore, by adding N,N'-methylenebisacrylamide (MBA) as a cross-linking agent, gel polymer electrolytes (GPEs) are produced after swelling in the liquid electrolyte. After characterization, the synthesized polymer electrolytes are investigated in terms of electrochemical properties. The best ionic conductivity of 3.8 × 10-5 S cm-1 is obtained for SPEs whereas it is obtained 4.3 × 10-3 S cm-1 for GPEs at room temperature. The ion transfer number in the range of 0.47-0.91 confirms the compatibility between the electrolytes and electrode. Also, the prepared polymer electrolytes present excellent electrochemical properties, including, a wide electrochemical stability window above 4.7 V, good specific capacities in the range of 170-200 mAh g-1 with a storage capacity of more than 92 %, and Coulombic efficiency of about 98 % after 100 cycles at 0.2 C.
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Affiliation(s)
- Zahra Hajian
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
| | - Seyedeh-Arefeh Safavi-Mirmahalleh
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
| | - Amir Rezvani Moghaddam
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
| | - Hossein Roghani-Mamaqani
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran
| | - Mehdi Salami-Kalajahi
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran; Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran.
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5
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Pandey P, Singha A, Bhowmick S, Qureshi M. Scalable, Flexible, Magnetic-Field-Guided rULGO Sponge-BN-Cobalt Oxide-Based Supercapacitors: Mechanistic Insights into Multiple Charge Transfer Pathways by the Distribution of Relaxation Times. ACS APPLIED MATERIALS & INTERFACES 2024; 16:44665-44677. [PMID: 39149930 DOI: 10.1021/acsami.4c06561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Scalable and flexible supercapacitors are in high demand from an application point of view. Through our exploration, we have attained promising performance of electrochemical energy storage under the influence of an external magnetic field for future energy-based applications. In this work, a commercial sponge is used as a template for ultra-large graphene oxide (rULGO) functionalization, followed by the incorporation of Co3O4:BN without the inclusion of binders or conductive additives. The fabricated electrodes, namely, SPG-rULGO and SPG-rULGO-Co3O4:BN, demonstrate superior performance with a potential window of 2.2 V at a magnetic field strength of 13.5 and 28 mT, respectively. A specific capacitance of 218 ± 5% F·g-1 and 312 ± 5% F·g-1, respectively, with retention rates of 80 and 88% over 5000 charge-discharge cycles are achieved. In contrast to the conventional fabrication of the asymmetric device, both electrodes are made using flexible substrates with SPG-rULGO-Co3O4:BN as the positive electrode and SPG-rULGO as the negative electrode eliminating the need to use activated carbon. This configuration yields a specific capacitance of 153 ± 5% F·g-1 at 1 Ag-1, leading to a high energy density of 103 ± 5% W·h·kg-1 at a power density of 1.10 ± 5% kW kg-1 with an 85% retention rate. The charge-discharge mechanism of bare and modified electrodes is probed by the distribution of relaxation time analysis of the coupled electrochemical impedance spectra. The integration of magnetic field with advanced electrode materials opens up other possibilities for optimizing energy storage systems and advancing the field of flexible and mechanically robust supercapacitors.
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Affiliation(s)
- Peeyush Pandey
- Material Science Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anjana Singha
- Material Science Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Sourav Bhowmick
- The Wolfson Faculty of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Mohammad Qureshi
- Material Science Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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6
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Tsai CY, Chang WH, Lu MY, Chen LJ. Advances in the heterostructures for enhanced hydrogen production efficiency: a comprehensive review. NANOSCALE 2024. [PMID: 39171376 DOI: 10.1039/d4nr01837k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
The growing global energy demand and heightened environmental consciousness have contributed to the increasing interest in green energy sources, including hydrogen production. However, the efficacy of this technology is contingent upon the efficient separation of charges, high absorption of sunlight, rapid charge transfer rate, abundant active sites and resistance to photodegradation. The utilization of photocatalytic heterostructures coupling two materials has proved to be effective in tackling the aforementioned challenges and delivering exceptional performance in the production of hydrogen. The present article provides a comprehensive overview of operational principles of photocatalysis and the combination of photocatalytic and piezo-catalytic applications with heterostructures, including the transfer behavior and mechanisms of photoexcited non-equilibrium carriers between the materials. Furthermore, the effects of recent advances and state-of-the-art designs of heterostructures on hydrogen production are discussed, offering practical approaches to form heterostructures for efficient hydrogen production.
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Affiliation(s)
- Chen-Yo Tsai
- College of Semiconductor Research, National Tsing Hua University, Hsinchu 300, Taiwan.
| | - Wei-Hsuan Chang
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Ming-Yen Lu
- College of Semiconductor Research, National Tsing Hua University, Hsinchu 300, Taiwan.
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Lih-Juann Chen
- College of Semiconductor Research, National Tsing Hua University, Hsinchu 300, Taiwan.
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
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7
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Roehrich B, Sepunaru L. Impedimetric Measurement of Exchange Currents and Ionic Diffusion Coefficients in Individual Pseudocapacitive Nanoparticles. ACS MEASUREMENT SCIENCE AU 2024; 4:467-474. [PMID: 39184362 PMCID: PMC11342456 DOI: 10.1021/acsmeasuresciau.4c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/04/2024] [Accepted: 06/27/2024] [Indexed: 08/27/2024]
Abstract
Among electroanalytical techniques, electrochemical impedance spectroscopy (EIS) offers the unique advantage of a high degree of frequency resolution. This enables EIS to readily deconvolute between the capacitive, resistive, and diffusional processes that underlie electrochemical devices. Here, we report the measurement of impedance spectra of individual, pseudocapacitive nanoparticles. We chose Prussian blue as our model system, as it couples an electron-transfer reaction with sodium ion intercalation-processes which, while intrinsically convoluted, can be readily resolved using EIS. We used a scanning electrochemical cell microscope (SECCM) to isolate single Prussian blue particles in a microdroplet and measured their impedance spectra using the multi-sine, fast Fourier transform technique. In doing so, we were able to extract the exchange current density and sodium ion diffusivity for each particle, which respectively inform on their electronic and ionic conductivities. Surprisingly, these parameters vary by over an order of magnitude between particles and are not correlated to particle size nor to each other. The implication of this apparent heterogeneity is that in a hypothetical battery cathode, one active particle may transfer electrons 10 times faster than its neighbor; another may suffer from sluggish sodium ion transport and have restricted charging rate capabilities compared to a better-performing particle elsewhere in the same electrode. Our results inform on this intrinsic heterogeneity while demonstrating the utility of EIS in future single-particle studies.
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Affiliation(s)
- Brian Roehrich
- Department of Chemistry and
Biochemistry, University of California Santa
Barbara, Santa
Barbara, California 93106, United States
| | - Lior Sepunaru
- Department of Chemistry and
Biochemistry, University of California Santa
Barbara, Santa
Barbara, California 93106, United States
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8
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Garg N, Ganguli AK. In situ growth of CaMoO 4 on electropolymerized PANI as a hybrid electrocatalyst for enhanced oxygen evolution. RSC Adv 2024; 14:26292-26301. [PMID: 39165787 PMCID: PMC11334154 DOI: 10.1039/d4ra03196b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/23/2024] [Indexed: 08/22/2024] Open
Abstract
Electrochemical water splitting stands as a promising avenue for sustainable hydrogen production, with the oxygen evolution reaction (OER) playing a pivotal role. Efficient and durable electrocatalysts are crucial for expediting the sluggish kinetics of OER. In this work, we investigate the synthesis and performance of a novel CaMoO4/polyaniline (CaMoO4/PANI) composite catalyst for OER. In situ growth of CaMoO4 has been done after the electropolymerization of polyaniline on nickel foam (NF), offering advantages such as improved structural integrity, increased surface area, and enhanced electroconductivity. Electrochemical characterization reveals that CaMoO4/PANI exhibits superior catalytic activity, with an overpotential of 233 mV at 10 mA cm-2, outperforming pristine CaMoO4, PANI, and certain current similar non-noble-metal electrocatalysts. Electrochemical studies reveal that the exceptional activity can be attributed to reduced charge transfer resistance, underscoring the catalyst's enhanced efficiency. Furthermore, multistep chronopotentiometry confirms excellent robustness of the catalyst electrode as well as its excellent mass transportation. This work highlights the potential of inorganic oxide/conductive polymer composites as efficient catalysts for OER, offering insights for future developments in sustainable energy technologies.
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Affiliation(s)
- Nitika Garg
- Department of Chemistry, Indian Institute of Technology Delhi Hauz Khas New Delhi-110016 India +91-11-2659-1511
| | - Ashok K Ganguli
- Department of Chemistry, Indian Institute of Technology Delhi Hauz Khas New Delhi-110016 India +91-11-2659-1511
- Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur Ganjam Odisha-760003 India
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9
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Simon JT, Šedajová V, Tripathy D, Smith HE, Clarke SM, Grey CP, Menkin S. The effect of interface heterogeneity on zinc metal anode cyclability. JOURNAL OF MATERIALS CHEMISTRY. A 2024:d4ta03165b. [PMID: 39184305 PMCID: PMC11342068 DOI: 10.1039/d4ta03165b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 08/06/2024] [Indexed: 08/27/2024]
Abstract
Zinc metal batteries (ZMBs) are promising candidates for low-cost, intrinsically safe, and environmentally friendly energy storage systems. However, the anode is plagued with problems such as the parasitic hydrogen evolution reaction, surface passivation, corrosion, and a rough metal electrode morphology that is prone to short circuits. One strategy to overcome these issues is understanding surface processes to facilitate more homogeneous electrodeposition of zinc by guiding the alignment of electrodeposited zinc. Using Scanning Electrochemical Microscopy (SECM), the charge transport rate on zinc metal anodes was mapped, demonstrating that manipulating electrolyte concentration can influence zinc electrodeposition and solid electrolyte interphase (SEI) formation in ZMBs. Using XPS and Raman spectroscopy, it is demonstrated that an SEI is formed on zinc electrodes at neutral pH, composed primarily of a Zn4(OH)6SO4·xH2O species, its formation being attributed to local pH increases at the interface. This work shows that more extended high-rate cycling can be achieved using a 1 M ZnSO4 electrolyte and that these systems have a reduced tendency for soft shorts. The improved cyclability in 1 M ZnSO4 was attributed to a more homogeneous and conductive interface formed, rather than the bulk electrolyte properties. This experimental methodology for studying metal battery electrodes is transferable to lithium metal and anode-free batteries, and other sustainable battery chemistries such as sodium, magnesium, and calcium.
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Affiliation(s)
- J T Simon
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- The Faraday Institution, Quad One Harwell Science and Innovation Campus, Didcot OX11 0RA UK
| | - V Šedajová
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - D Tripathy
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - H E Smith
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - S M Clarke
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- Institute for Energy and Environmental Flows, University of Cambridge Madingley Road Cambridge CB3 0EZ UK
| | - C P Grey
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- The Faraday Institution, Quad One Harwell Science and Innovation Campus, Didcot OX11 0RA UK
| | - S Menkin
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- The Faraday Institution, Quad One Harwell Science and Innovation Campus, Didcot OX11 0RA UK
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10
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Tajima M, Nagai Y, Chen S, Pan Z, Katayama K. A robust methodology for PEC performance analysis of photoanodes using machine learning and analytical data. Analyst 2024; 149:4193-4207. [PMID: 38984992 DOI: 10.1039/d4an00439f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Machine learning (ML) is increasingly applied across various fields, including chemistry, for molecular design and optimizing reaction parameters. Yet, applying ML to experimental data is challenging due to the limited number of synthesized samples, which restricts its broader application in device development. In energy harvesting, photoanodes are crucial for solar-driven water splitting, generating hydrogen and oxygen. We explored electrodes like hematite and bismuth vanadate for photocatalytic uses, noting varied photoelectrochemical performances despite similar preparations. To understand this variability, we applied a data-driven ML approach, predicting photocurrent values and identifying key performance influencers even with limited experimental data in the research development of inorganic devices. We have utilized multiple machine learning algorithms to predict the target value in the calculation process, where the contributions of the dominant descriptors were unknown. We introduced a novel methodology, incorporating clustering to manage multicollinearity from correlated analytical data and Shapley analysis for clear interpretation of contributions to performance prediction. This method was validated on hematite and bismuth vanadate, showing superior predictability and factor identification, and then extended to tungsten oxide and bismuth vanadate heterojunction photoanodes. Despite their complexity, our approach achieved determination coefficients (R2) with a prediction accuracy over 0.85, successfully pinpointing performance-determining factors, demonstrating the robustness of the new scheme in advancing photodevice research.
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Affiliation(s)
- Moeko Tajima
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
| | - Yuya Nagai
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
| | - Siyan Chen
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
| | - Zhenhua Pan
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
| | - Kenji Katayama
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan.
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11
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Lee DY, Haider Z, Krishnan SK, Kanagaraj T, Son SH, Jae J, Kim JR, Murphin Kumar PS, Kim HI. Oxygen-enriched carbon quantum dots from coffee waste: Extremely active organic photocatalyst for sustainable solar-to-H 2O 2 conversion. CHEMOSPHERE 2024; 361:142330. [PMID: 38759805 DOI: 10.1016/j.chemosphere.2024.142330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 05/19/2024]
Abstract
Solar-driven artificial photosynthesis offers a promising avenue for hydrogen peroxide (H2O2) generation, an efficient and economical replacement for current methods. The efficiency and selectivity hurdles of the two-electron oxygen reduction reaction (ORR) in solar-to- H2O2 conversion are substantial barriers to large scale production. In this manuscript, a simple biomass-assisted synthesis was performed to produce oxygen-enriched carbon quantum dots (OE-CQDs) from spent coffee waste, acting as an efficient photocatalyst for solar-powered H2O2 production. OE-CQDs can stabilize and store light-generated electrons effectively, boosting charge separation and enhancing photocatalytic performance with longevity. The maximal photocatalytic H2O2 production was achieved viz the utilization of OE-CQDs with generation rate of 356.86 μmol g-1 h-1 by retaining 80% activity without any external sacrificial donors. The outstanding performance of synthesized OE-CQDs under light exposure at wavelength (λ) of 280 nm has been ensured by the quantum yield value of 9.4% upon H2O2 generation. The combinatorial benefits of OE-CQDs with their authentic crystalline structure and oxygen enrichment, is expected to be enhancing the ORR activity through accelerating charge transfer, and optimizing oxygen diffusion. Consequently, our eco-friendly method holds considerable promise for creating highly efficient, metal-free photocatalysts for artificial H2O2 production.
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Affiliation(s)
- Do-Yeon Lee
- Department of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Seoul, 03722, Republic of Korea.
| | - Zeeshan Haider
- Department of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Seoul, 03722, Republic of Korea; Department of Physics, Incheon National University, 119-Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea.
| | - Siva Kumar Krishnan
- CONACYT-Instituto de Física, Benemérita Universidad Autosome de Puebla, Apdo. Postal J-48, Puebla, 72570, Mexico.
| | - Thamaraiselvi Kanagaraj
- Department of Biomaterials, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai, 600077, India.
| | - Sang Hwan Son
- Department of Chemical and Biomolecular Engineering, Pusan National University, Busan, 46241, Republic of Korea.
| | - Jungho Jae
- Department of Chemical and Biomolecular Engineering, Pusan National University, Busan, 46241, Republic of Korea.
| | - Jung Rae Kim
- Department of Chemical and Biomolecular Engineering, Pusan National University, Busan, 46241, Republic of Korea.
| | - Paskalis Sahaya Murphin Kumar
- Department of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Seoul, 03722, Republic of Korea; Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, 62102, Taiwan; Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chia-Yi, 62102, Taiwan.
| | - Hyoung-Il Kim
- Department of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Seoul, 03722, Republic of Korea; Future City Open Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
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12
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Lytvynenko A, Baluchová S, Zima J, Krůšek J, Schwarzová-Pecková K. Biofouling and performance of boron-doped diamond electrodes for detection of dopamine and serotonin in neuron cultivation media. Bioelectrochemistry 2024; 158:108713. [PMID: 38688079 DOI: 10.1016/j.bioelechem.2024.108713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 05/02/2024]
Abstract
Boron doped diamond has been considered as a fouling-resistive electrode material for in vitro and in vivo detection of neurotransmitters. In this study, its performance in electrochemical detection of dopamine and serotonin in neuron cultivation media Neurobasal™ before and after cultivation of rat neurons was investigated. For differential pulse voltammetry the limits of detection in neat Neurobasal™ medium of 2 µM and 0.2 µM for dopamine and serotonin, respectively, were achieved on the polished surface, which is comparable with physiological values. On oxidized surface twofold higher values, but increased repeatabilities of the signals were obtained. However, in Neurobasal™ media with peptides-containing supplements necessary for cell cultivation, the voltammograms were notably worse shaped due to biofouling, especially in the medium isolated after neuron growth. In these complex media, the amperometric detection mode at +0.75 V (vs. Ag/AgCl) allowed to detect portion-wise additions of dopamine and serotonin (as low as 1-2 µM), mimicking neurotransmitter release from vesicles despite the lower sensitivity in comparison with neat NeurobasalTM. The results indicate substantial differences in detection on boron doped diamond electrode in the presence and absence of proteins, and the necessity of studies in real media for successful implementation to neuron-electrode interfaces.
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Affiliation(s)
- Anton Lytvynenko
- Charles University, Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Albertov 6, 128 00 Prague, Czech Republic
| | - Simona Baluchová
- Charles University, Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Albertov 6, 128 00 Prague, Czech Republic
| | - Jiří Zima
- Charles University, Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Albertov 6, 128 00 Prague, Czech Republic
| | - Jan Krůšek
- Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Karolina Schwarzová-Pecková
- Charles University, Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Albertov 6, 128 00 Prague, Czech Republic.
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13
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Ge W, Tao H, Dong L, Fan Y, Niu Y, Zhu Y, Lian C, Liu H, Jiang H, Li C. Lewis-base ligand-reshaped interfacial hydrogen-bond network boosts CO 2 electrolysis. Natl Sci Rev 2024; 11:nwae218. [PMID: 39034947 PMCID: PMC11259048 DOI: 10.1093/nsr/nwae218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/28/2024] [Accepted: 06/11/2024] [Indexed: 07/23/2024] Open
Abstract
Both the catalyst and electrolyte strongly impact the performance of CO2 electrolysis. Despite substantial progress in catalysts, it remains highly challenging to tailor electrolyte compositions and understand their functions at the catalyst interface. Here, we report that the ethylenediaminetetraacetic acid (EDTA) and its analogs, featuring strong Lewis acid-base interaction with metal cations, are selected as electrolyte additives to reshape the catalyst-electrolyte interface for promoting CO2 electrolysis. Mechanistic studies reveal that EDTA molecules are dynamically assembled toward interface regions in response to bias potential due to strong Lewis acid-base interaction of EDTA4--K+. As a result, the original hydrogen-bond network among interfacial H2O is disrupted, and a hydrogen-bond gap layer at the electrified interface is established. The EDTA-reshaped K+ solvation structure promotes the protonation of *CO2 to *COOH and suppressing *H2O dissociation to *H, thereby boosting the co-electrolysis of CO2 and H2O toward carbon-based products. In particular, when 5 mM of EDTA is added into the electrolytes, the Faradaic efficiency of CO on the commercial Ag nanoparticle catalyst is increased from 57.0% to 90.0% at an industry-relevant current density of 500 mA cm-2. More importantly, the Lewis-base ligand-reshaped interface allows a range of catalysts (Ag, Zn, Pd, Bi, Sn, and Cu) to deliver substantially increased selectivity of carbon-based products in both H-type and flow-type electrolysis cells.
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Affiliation(s)
- Wangxin Ge
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Haolan Tao
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Lei Dong
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yu Fan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yanpu Niu
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yihua Zhu
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Cheng Lian
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hongliang Jiang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chunzhong Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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14
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Habibi M, Habibi-Yangjeh A, Khataee A. Synthesis of visible-light-activated CeO 2-x/BiCrO 3 photocatalysts with S-scheme mechanism: Effectual performances in detoxification of various antibiotics and organic pollutants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121890. [PMID: 39029170 DOI: 10.1016/j.jenvman.2024.121890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 07/09/2024] [Accepted: 07/13/2024] [Indexed: 07/21/2024]
Abstract
In today's world, the development of an efficient water treatment strategy requires a prospective approach for the production of active and stable photocatalysts. The construction of heterojunctions with different semiconductors is a promising procedure for improving photocatalytic performances. In the present research, binary CeO2-x/BiCrO3 photocatalysts were synthesized using a hydrothermal route preceded by a calcination step. The CeO2-x/BiCrO3 (15%) photocatalyst proved its unique performance of 29.3, 11.4, 11.7, and 23.0 times better than CeO2 for photodegradation of respectively tetracycline hydrochloride (TCH), metronidazole (MET), azithromycin (AZM), and cephalexin (CPN), as antibiotic pollutants, upon visible light. The effective photocatalytic ability, which was caused by the impressive suppression of charge carriers, can be understood by the developed S-scheme mechanism. Moreover, the lower resistance of CeO2-x/BiCrO3 (15%) compared to CeO2, CeO2-x, and BiCrO3 against the charges transfer was another confirmation for boosted photocatalytic performance of the CeO2-x/BiCrO3 (15%) nanocomposite. Ultimately, the boosted activity, repeated utilization for five runs, and biocompatibility confirmation of the purified solution through pinto bean cultivation exhibited that CeO2-x/BiCrO3 photocatalysts could have the promising capability for detoxification of polluted water.
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Affiliation(s)
- Meysam Habibi
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Department of Chemical Engineering, Istanbul Technical University, 34469, Istanbul, Turkey; Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Near East University, 99138 Nicosia, Mersin 10, Turkey
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15
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Cora S, Vaughey JT, Sa N. Binary Cation Matrix Electrolyte and Its Effect on Solid Electrolyte Interphase Suppression and Evolution of Si Anode. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39277-39286. [PMID: 39024540 DOI: 10.1021/acsami.4c05194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
An unstable solid electrolyte interphase (SEI) has been recognized as one of the biggest challenges to commercializing silicon (Si) anodes for high-energy-density batteries. This work thoroughly investigates a binary cation matrix of Mg2++Li+ electrolyte and its role in SEI development, suppression, and evolution of a Si anode. Findings demonstrate that introducing Mg ions dramatically reduces the SEI growth before lithiation occurs, primarily due to the suppression of solvent reduction, particularly ethylene carbonate (EC) reduction. The Mg2+ alters the Li+ cation solvation environment as EC preferably participates in the oxophyllic Mg2+ solvation sheath, thereby altering the solvent reduction process, resulting in a distinct SEI formation mechanism. The initial SEI formation before lithiation is reduced by 70% in the electrolyte with the presence of Mg2+ cations. While the SEI continues to develop in the postlithiation, the inclusion of Mg ions results in an approximately 80% reduction in the postlithiation SEI growth. Continuous electrochemical cycling reveals that Mg2+ plays a crucial role in stabilizing the deep-lithiated Si phases, which effectively mitigates side reactions, resulting in controlled SEI growth and stable interphase while eliminating complex LixSiy formation. Mg ions promote the development of a notably more rigid and homogeneous SEI, characterized by a reduced dissipation (ΔD) in the Mg2++Li+ ion matrix compared to the solely Li+ system. This report reveals how the Mg2++Li+ ion matrix affects the SEI evolution, viscoelastic properties, and electrochemical behavior at the Si interface in real time, laying the groundwork for devising strategies to enhance the performance and longevity of Si-based next-generation battery systems.
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Affiliation(s)
- Saida Cora
- Department of Chemistry, University of Massachusetts Boston, Boston, Massachusetts 02125, United States
| | - John T Vaughey
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Niya Sa
- Department of Chemistry, University of Massachusetts Boston, Boston, Massachusetts 02125, United States
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16
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Hasabnis G, Altintas Z. Cardiac Troponin I-Responsive Nanocomposite Materials for Voltammetric Monitoring of Acute Myocardial Infarction. ACS OMEGA 2024; 9:30737-30750. [PMID: 39035901 PMCID: PMC11256321 DOI: 10.1021/acsomega.4c03252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/23/2024]
Abstract
Acute myocardial infarction (AMI) is a severe cardiovascular disease characterized by heart muscle damage due to inadequate blood supply, leading to a life-threatening risk of heart attack. Herein, we report on the design of polyaminophenol-based thin film functional polymers and their thorough optimization by electrochemical, spectroscopic, and microscopic techniques to develop a high-performance point-of-care voltammetric monitoring system. Molecularly imprinted polymer-based cTnI-responsive nanocomposite materials were prepared on an electrode surface by imprinting a specific cTnI epitope, integrating polyaminophenol electrodeposition, along with gold nanoparticles (AuNPs) and graphene quantum dots (GQDs). The characterization techniques, including cyclic and square wave voltammetries, electrochemical impedance spectroscopy, atomic force microscopy, fluorescence microscopy, attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), and contact angle measurements proved the efficient fabrication of the voltammetric monitoring system relying on cTnI-responsive functional thin films. The sensing platform prepared with the optimized nanocomposite composition of AuNPs, GQDs, and molecularly imprinted polymers exhibited very high sensitivity, reproducibility, specificity, and affinity toward cTnI. The sensor showed a storage stability of 30 days, demonstrating great potential for use in early and point-of-care diagnosis of AMI with its 18 min detection time.
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Affiliation(s)
- Gauri
Kishore Hasabnis
- Institute
of Chemistry, Faculty of Natural Sciences and Maths, Technical University of Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
- Institute
of Materials Science, Faculty of Engineering, Kiel University, 24143 Kiel, Germany
| | - Zeynep Altintas
- Institute
of Chemistry, Faculty of Natural Sciences and Maths, Technical University of Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
- Institute
of Materials Science, Faculty of Engineering, Kiel University, 24143 Kiel, Germany
- Kiel
Nano, Surface and Interface Science (KiNSIS),
Kiel University, 24118 Kiel, Germany
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17
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Ryu J, Qiang Y, Chen L, Li G, Han X, Woon E, Bai T, Qi Y, Zhang S, Liou JY, Seo KJ, Feng B, Fang H. Multifunctional Nanomesh Enables Cellular-Resolution, Elastic Neuroelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2403141. [PMID: 39011796 DOI: 10.1002/adma.202403141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 07/03/2024] [Indexed: 07/17/2024]
Abstract
Silicone-based devices have the potential to achieve an ideal interface with nervous tissue but suffer from scalability, primarily due to the mechanical mismatch between established electronic materials and soft elastomer substrates. This study presents a novel approach using conventional electrode materials through multifunctional nanomesh to achieve reliable elastic microelectrodes directly on polydimethylsiloxane (PDMS) silicone with an unprecedented cellular resolution. This engineered nanomesh features an in-plane nanoscale mesh pattern, physically embodied by a stack of three thin-film materials by design, namely Parylene-C for mechanical buffering, gold (Au) for electrical conduction, and Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) for improved electrochemical interfacing. Nanomesh elastic neuroelectronics are validated using single-unit recording from the small and curvilinear epidural surface of mouse dorsal root ganglia (DRG) with device self-conformed and superior recording quality compared to plastic control devices requiring manual pressing is demonstrated. Electrode scaling studies from in vivo epidural recording further revealed the need for cellular resolution for high-fidelity recording of single-unit activities and compound action potentials. In addition to creating a minimally invasive device to effectively interface with DRG sensory afferents at a single-cell resolution, this study establishes nanomeshing as a practical pathway to leverage traditional electrode materials for a new class of elastic neuroelectronics.
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Affiliation(s)
- Jaehyeon Ryu
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Yi Qiang
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Longtu Chen
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Gen Li
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Xun Han
- Electrical and Computer Engineering, Northeastern University, Boston, MA, 02115, USA
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, School of Micro-Nano Electronics, Zhejiang University, Hangzhou, 311200, China
| | - Eric Woon
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Tianyu Bai
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Yongli Qi
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
| | - Shaopeng Zhang
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Jyun-You Liou
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Kyung Jin Seo
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
- Science Corporation, 300 Wind River Way, Alameda, CA, 94501, USA
| | - Bin Feng
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Hui Fang
- Thayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA
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18
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Blau R, Russman SM, Qie Y, Shipley W, Lim A, Chen AX, Nyayachavadi A, Ah L, Abdal A, Esparza GL, Edmunds SJ, Vatsyayan R, Dunfield SP, Halder M, Jokerst JV, Fenning DP, Tao AR, Dayeh SA, Lipomi DJ. Surface-Grafted Biocompatible Polymer Conductors for Stable and Compliant Electrodes for Brain Interfaces. Adv Healthc Mater 2024:e2402215. [PMID: 39011811 DOI: 10.1002/adhm.202402215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/02/2024] [Indexed: 07/17/2024]
Abstract
Durable and conductive interfaces that enable chronic and high-resolution recording of neural activity are essential for understanding and treating neurodegenerative disorders. These chronic implants require long-term stability and small contact areas. Consequently, they are often coated with a blend of conductive polymers and are crosslinked to enhance durability despite the potentially deleterious effect of crosslinking on the mechanical and electrical properties. Here the grafting of the poly(3,4 ethylenedioxythiophene) scaffold, poly(styrenesulfonate)-b-poly(poly(ethylene glycol) methyl ether methacrylate block copolymer brush to gold, in a controlled and tunable manner, by surface-initiated atom-transfer radical polymerization (SI-ATRP) is described. This "block-brush" provides high volumetric capacitance (120 F cm─3), strong adhesion to the metal (4 h ultrasonication), improved surface hydrophilicity, and stability against 10 000 charge-discharge voltage sweeps on a multiarray neural electrode. In addition, the block-brush film showed 33% improved stability against current pulsing. This approach can open numerous avenues for exploring specialized polymer brushes for bioelectronics research and application.
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Affiliation(s)
- Rachel Blau
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Samantha M Russman
- Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Yi Qie
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Wade Shipley
- Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0418, USA
| | - Allison Lim
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Alexander X Chen
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Audithya Nyayachavadi
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Louis Ah
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Abdulhameed Abdal
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Guillermo L Esparza
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Samuel J Edmunds
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Ritwik Vatsyayan
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Sean P Dunfield
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Moumita Halder
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Jesse V Jokerst
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - David P Fenning
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Andrea R Tao
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
- Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0418, USA
| | - Shadi A Dayeh
- Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
- Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
| | - Darren J Lipomi
- Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0448, USA
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19
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Nalepa MA, Panáček D, Dědek I, Jakubec P, Kupka V, Hrubý V, Petr M, Otyepka M. Graphene derivative-based ink advances inkjet printing technology for fabrication of electrochemical sensors and biosensors. Biosens Bioelectron 2024; 256:116277. [PMID: 38613934 DOI: 10.1016/j.bios.2024.116277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/16/2024] [Accepted: 04/05/2024] [Indexed: 04/15/2024]
Abstract
The field of biosensing would significantly benefit from a disruptive technology enabling flexible manufacturing of uniform electrodes. Inkjet printing holds promise for this, although realizing full electrode manufacturing with this technology remains challenging. We introduce a nitrogen-doped carboxylated graphene ink (NGA-ink) compatible with commercially available printing technologies. The water-based and additive-free NGA-ink was utilized to produce fully inkjet-printed electrodes (IPEs), which demonstrated successful electrochemical detection of the important neurotransmitter dopamine. The cost-effectiveness of NGA-ink combined with a total cost per electrode of $0.10 renders it a practical solution for customized electrode manufacturing. Furthermore, the high carboxyl group content of NGA-ink (13 wt%) presents opportunities for biomolecule immobilization, paving the way for the development of advanced state-of-the-art biosensors. This study highlights the potential of NGA inkjet-printed electrodes in revolutionizing sensor technology, offering an affordable, scalable alternative to conventional electrochemical systems.
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Affiliation(s)
- Martin-Alex Nalepa
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - David Panáček
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic; Nanotechnology Centre, Centre of Energy and Environmental Technologies, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00, Ostrava-Poruba, Czech Republic
| | - Ivan Dědek
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic; Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, Olomouc, 771 46, Czech Republic
| | - Petr Jakubec
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Vojtěch Kupka
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Vítězslav Hrubý
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic; Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, Olomouc, 771 46, Czech Republic
| | - Martin Petr
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic; IT4Innovations, VSB - Technical University of Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic.
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20
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Lopez Carrasco I, Cuniberti G, Opitz J, Beshchasna N. Evaluation of Transducer Elements Based on Different Material Configurations for Aptamer-Based Electrochemical Biosensors. BIOSENSORS 2024; 14:341. [PMID: 39056617 PMCID: PMC11274616 DOI: 10.3390/bios14070341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024]
Abstract
The selection of an appropriate transducer is a key element in biosensor development. Currently, a wide variety of substrates and working electrode materials utilizing different fabrication techniques are used in the field of biosensors. In the frame of this study, the following three specific material configurations with gold-finish layers were investigated regarding their efficacy to be used as electrochemical (EC) biosensors: (I) a silicone-based sensor substrate with a layer configuration of 50 nm SiO/50 nm SiN/100 nm Au/30-50 nm WTi/140 nm SiO/bulk Si); (II) polyethylene naphthalate (PEN) with a gold inkjet-printed layer; and (III) polyethylene terephthalate (PET) with a screen-printed gold layer. Electrodes were characterized using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) to evaluate their performance as electrochemical transducers in an aptamer-based biosensor for the detection of cardiac troponin I using the redox molecule hexacyanoferrade/hexacyaniferrade (K3[Fe (CN)6]/K4[Fe (CN)6]. Baseline signals were obtained from clean electrodes after a specific cleaning procedure and after functionalization with the thiolate cardiac troponin I aptamers "Tro4" and "Tro6". With the goal of improving the PEN-based and PET-based performance, sintered PEN-based samples and PET-based samples with a carbon or silver layer under the gold were studied. The effect of a high number of immobilized aptamers will be tested in further work using the PEN-based sample. In this study, the charge-transfer resistance (Rct), anodic peak height (Ipa), cathodic peak height (Ipc) and peak separation (∆E) were determined. The PEN-based electrodes demonstrated better biosensor properties such as lower initial Rct values, a greater change in Rct after the immobilization of the Tro4 aptamer on its surface, higher Ipc and Ipa values and lower ∆E, which correlated with a higher number of immobilized aptamers compared with the other two types of samples functionalized using the same procedure.
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Affiliation(s)
- Ivan Lopez Carrasco
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Maria-Reiche-Strasse 2, 01109 Dresden, Germany; (I.L.C.); (J.O.)
| | - Gianaurelio Cuniberti
- Faculty of Mechanical Science and Engineering, Institute of Materials Science and Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01062 Dresden, Germany;
| | - Jörg Opitz
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Maria-Reiche-Strasse 2, 01109 Dresden, Germany; (I.L.C.); (J.O.)
| | - Natalia Beshchasna
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Maria-Reiche-Strasse 2, 01109 Dresden, Germany; (I.L.C.); (J.O.)
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21
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Bilal M, Li J, Kumar N, Mosevitzky B, Wachs IE, Landskron K. Oxygen-Assisted Supercapacitive Swing Adsorption of Carbon Dioxide. Angew Chem Int Ed Engl 2024:e202404881. [PMID: 38975802 DOI: 10.1002/anie.202404881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/02/2024] [Accepted: 07/03/2024] [Indexed: 07/09/2024]
Abstract
We report on the supercapacitive swing adsorption (SSA) of carbon dioxide at different voltage windows in the presence of oxygen using activated carbon electrodes, and deliquescent, aqueous electrolytes. The presence of O2 in the CO2/N2 gas mixture results in an up to 11 times higher CO2 adsorption capacity with 3 M MgBr2 (at 0.6 V) and up to 4-5 times higher adsorption capacity with 3 M MgCl2 (at 1 V). A tradeoff between high CO2 adsorption capacities and lower coulombic efficiencies was observed at voltages above 0.6 V. The energetic and adsorptive performance of the electrodes in the presence of oxygen below 0.5 V was similar to the performance with a CO2/N2 mixture without oxygen at 1 V. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) of the electrodes demonstrate that the specific capacitance increases while the diffusion resistance decreases in the presence of oxygen. Oxygen concentrations ranging between 5-20 % give similar energetic and adsorptive performance. The electrodes exhibit stable performance for up to 100 cycles of operation.
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Affiliation(s)
- Muhammad Bilal
- Department of Chemistry, Lehigh University, 6 East Packer Avenue, Bethlehem, PA 18015, USA
| | - Jiajie Li
- Department of Chemistry, Lehigh University, 6 East Packer Avenue, Bethlehem, PA 18015, USA
| | - Neelesh Kumar
- Department of Chemical and Bioengineering, Lehigh University, 5 East Packer Avenue, Bethlehem, PA 18015, USA
| | - Bar Mosevitzky
- Department of Chemical and Bioengineering, Lehigh University, 5 East Packer Avenue, Bethlehem, PA 18015, USA
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Israel E Wachs
- Department of Chemical and Bioengineering, Lehigh University, 5 East Packer Avenue, Bethlehem, PA 18015, USA
| | - Kai Landskron
- Department of Chemistry, Lehigh University, 6 East Packer Avenue, Bethlehem, PA 18015, USA
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22
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Sutar SD, Patil I, Parse H, Mukherjee P, Swami A. MXene-Derived TiO 2/Starbon Nanocomposite as a Remarkable Electrode Material for Coin-Cell Symmetric Supercapacitor. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403552. [PMID: 38963327 DOI: 10.1002/smll.202403552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/20/2024] [Indexed: 07/05/2024]
Abstract
In this study, the synthesis of a MXene (Ti3C2Tx)-derived TiO2/starbon (M-TiO2/Starbon-800 °C) nanocomposite using a facile calcination method is explored. High-temperature exposure transforms layered Ti3C2Tx into rod-like TiO2 and starbon into amorphous carbon. The resulting M-TiO2/Starbon-800 °C nanocomposite exhibits a significantly larger surface area and pore volume compared to its individual components, leading to superior electrochemical performance. In a three-electrode configuration, the nanocomposite achieved a specific capacitance (Csp) of 1352 Fg⁻¹ at 1 Ag⁻¹, while retaining more than 99% of its Csp after 50 000 charge/discharge cycles. Furthermore, when incorporated into a two-electrode symmetric coin cell, it demonstrates a Csp of 115 Fg⁻¹ along with exceptional long cycle life. Moreover, the device shows an energy density (ED) of 51 Whkg-1 and a power density (PD) of 7912 Wkg-1 at 5 Ag-1. The enhanced charge storage is attributed to the formation of a porous structure with a high specific surface area resulting from the interaction between M-TiO2 nanorods and starbon, which facilitates efficient ion penetration.
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Affiliation(s)
- Sanjay D Sutar
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Indrajit Patil
- Institute for Technical Chemistry and Environmental, Chemistry (ITUC) and Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich-Schiller-University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Haridas Parse
- Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Prateekshita Mukherjee
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Anita Swami
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
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23
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Niu B, Xie RC, Ren B, Long YT, Wang W. Radially distributed charging time constants at an electrode-solution interface. Nat Commun 2024; 15:5633. [PMID: 38965237 PMCID: PMC11224254 DOI: 10.1038/s41467-024-50028-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/27/2024] [Indexed: 07/06/2024] Open
Abstract
An electrochemically homogeneous electrode-solution interface should be understood as spatially invariant in both terms of intrinsic reactivity for the electrode side and electrical resistance mainly for the solution side. The latter remains presumably assumed in almost all cases. However, by using optical microscopy to spatially resolve the classic redox electrochemistry occurring at the whole surface of a gold macroelectrode, we discover that the electron transfer occurs always significantly sooner (by milliseconds), rather than faster in essence, at the radial coordinates closer to the electrode periphery than the very center. So is the charging process when there is no electron transfer. Based on optical measurements of the interfacial impedance, this spatially unsynchronized electron transfer is attributed to a radially non-uniform distribution of solution resistance. We accordingly manage to eliminate the heterogeneity by engineering the solution resistance distribution. The revealed spatially-dependent charging time 'constant' (to be questioned) would help paint our overall fundamental picture of electrode kinetics.
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Affiliation(s)
- Ben Niu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Ruo-Chen Xie
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Bin Ren
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (i-ChEM), Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China
| | - Yi-Tao Long
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China.
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24
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Hsu CH, Ng DQ, Lin YP. Release of lead, copper, zinc from the initial corrosion of brass water meter in drinking water: Influences of solution composition and electrochemical characterization. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 352:124154. [PMID: 38750810 DOI: 10.1016/j.envpol.2024.124154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/13/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
Corrosion of brass plumbing materials may lead to metal release and deteriorate the drinking water quality. In this study, the initial corrosion of brass coupon cut from commercially available water meter was investigated. High rates of Pb, Cu and Zn release from the brass coupon were found during the early stage of corrosion (0-5 d) due to general corrosion and galvanic corrosion. The corrosion current density (Icorr) increased and resistance (RF) decreased during this period indicating that severe corrosion had occurred. In a later stage (5-30 d), a decreased Icorr and an increased RF were observed due to the development of a denser layer of Pb and Cu corrosion products which regulated the release of soluble Pb and Cu. The release of Zn continued and no significant Zn precipitation was found. Overall, particulate Pb, particulate Cu and soluble Zn dominated in the metal release during the initial corrosion of brass. The release of Pb, Cu and Zn was enhanced by a lower pH. Free chlorine was found to slightly reduce the release of Pb but promote the release of Cu and Zn. The presence of Pb on the brass surfaces was found to alleviate the dezincification process. A conceptual model based on metal release profile and electrochemical characterization was proposed to describe the initial corrosion of brass in typical drinking water.
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Affiliation(s)
- Ching-Hsuan Hsu
- Graduate Institute of Environmental Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.
| | - Ding-Quan Ng
- Department of Environmental Engineering and Management, Chaoyang University of Technology, No. 168, Jifeng E. Rd, Wufeng District, Taichung, 41349, Taiwan
| | - Yi-Pin Lin
- Graduate Institute of Environmental Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan; NTU Research Center for Future Earth, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.
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25
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Khan R, Uygun ZO, Andreescu D, Andreescu S. Sensitive Detection of Perfluoroalkyl Substances Using MXene-AgNP-Based Electrochemical Sensors. ACS Sens 2024; 9:3403-3412. [PMID: 38830812 DOI: 10.1021/acssensors.4c00776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) pose a significant threat to the environment due to their persistence, ability to bioaccumulate, and harmful effects. Methods to quantify PFAS rapidly and effectively are essential to analyze and track contamination, but measuring PFAS down to the ultralow regulatory levels is extremely challenging. Here, we describe the development of a low-cost sensor that can measure a representative PFAS, perfluorooctanesulfonic acid (PFOS), at the parts per quadrillion (ppq) level within 5 min. The method combines the ability of PFOS to bind to silver nanoparticles (AgNPs) embedded within a fluorine-rich Ti3C2-based multilayered MXene, which provides a large surface area and accessible binding sites for direct impedimetric detection. Fundamentally, we show that MXene-AgNPs are capable of binding PFOS and other long-chain PFAS compounds, though the synergistic action of AgNPs and MXenes via electrostatic and F-F interactions. This binding induced concentration-dependent changes in the charge-transfer resistance, enabling rapid and direct quantification with extremely high sensitivity and no response to interferences. The sensor displayed a linear range from 50 ppq to 1.6 ppt (parts per trillion) with an impressively low limit of detection of 33 ppq and a limit of quantification of 99 ppq, making this sensor a promising candidate for low-cost screening of the PFAS content in water samples, using a simple and inexpensive procedure.
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Affiliation(s)
- Reem Khan
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
| | - Zihni Onur Uygun
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
- Department of Medical Biochemistry, Faculty of Medicine, Kafkas University, Kars 36100, Turkey
| | - Daniel Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
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26
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Beletskii E, Pinchuk M, Snetov V, Dyachenko A, Volkov A, Savelev E, Romanovski V. Simple Solution Plasma Synthesis of Ni@NiO as High-Performance Anode Material for Lithium-Ion Batteries Application. Chempluschem 2024:e202400427. [PMID: 38926095 DOI: 10.1002/cplu.202400427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 06/26/2024] [Accepted: 06/26/2024] [Indexed: 06/28/2024]
Abstract
Pursuing of straightforward and cost-effective methods for synthesizing high-performance anode materials for lithium-ion batteries is a topic of significant interest. This study elucidates a one-step synthesis approach for a conversion composite using glow discharge in a nickel formate solution, yielding a composite precursor comprising metallic nickel, nickel hydroxide, and basic nickel salts. Subsequent annealing of the precursor facilitated the formation of the Ni@NiO composite, exhibiting exceptional electrochemical properties as anode material in Li-ion batteries: a capacity of approximately 1000 mAh g-1, cyclic stability exceeding 100 cycles, and favorable rate performance (200 mAh g-1 at 10 A g
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Affiliation(s)
- Evgenii Beletskii
- Institute of Chemistry, St. Petersburg University, St. Petersburg, Universitetskaya Emb.7/9, 199034, Russia
| | - Mikhail Pinchuk
- Institute for Electrophysics and Electrical Power of the Russian Academy of Sciences, Dvortsovaya Naberezhnaya 18, St. Petersburg, 191186, Russia
| | - Vadim Snetov
- Institute for Electrophysics and Electrical Power of the Russian Academy of Sciences, Dvortsovaya Naberezhnaya 18, St. Petersburg, 191186, Russia
| | - Aleksandr Dyachenko
- Institute for Electrophysics and Electrical Power of the Russian Academy of Sciences, Dvortsovaya Naberezhnaya 18, St. Petersburg, 191186, Russia
| | - Alexey Volkov
- Institute of Chemistry, St. Petersburg University, St. Petersburg, Universitetskaya Emb.7/9, 199034, Russia
| | - Egor Savelev
- Institute of Chemistry, St. Petersburg University, St. Petersburg, Universitetskaya Emb.7/9, 199034, Russia
| | - Valentin Romanovski
- Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA, 22904, USA
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27
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Hernández-Rodríguez JF, Trachioti MG, Hrbac J, Rojas D, Escarpa A, Prodromidis MI. Spark-Discharge-Activated 3D-Printed Electrochemical Sensors. Anal Chem 2024; 96:10127-10133. [PMID: 38867513 PMCID: PMC11209655 DOI: 10.1021/acs.analchem.4c01249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/11/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
3D printing technology is a tremendously powerful technology to fabricate electrochemical sensing devices. However, current conductive filaments are not aimed at electrochemical applications and therefore require intense activation protocols to unleash a suitable electrochemical performance. Current activation methods based on (electro)chemical activation (using strong alkaline solutions and organic solvents and/or electrochemical treatments) or combined approaches are time-consuming and require hazardous chemicals and dedicated operator intervention. Here, pioneering spark-discharge-activated 3D-printed electrodes were developed and characterized, and it was demonstrated that their electrochemical performance was greatly improved by the effective removal of the thermoplastic support polylactic acid (PLA) as well as the formation of sponge-like and low-dimensional carbon nanostructures. This reagent-free approach consists of a direct, fast, and automatized spark discharge between the 3D-electrode and the respective graphite pencil electrode tip using a high-voltage power supply. Activated electrodes were challenged toward the simultaneous voltammetric determination of dopamine (DP) and serotonin (5-HT) in cell culture media. Spark discharge has been demonstrated as a promising approach for conductive filament activation as it is a fast, green (0.94 GREEnness Metric Approach), and automatized procedure that can be integrated into the 3D printing pipeline.
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Affiliation(s)
- Juan F. Hernández-Rodríguez
- Department
of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Alcalá de Henares 28802, Madrid, Spain
| | - Maria G. Trachioti
- Department
of Chemistry, University of Ioannina, 45 110 Ioannina, Greece
| | - Jan Hrbac
- Department
of Chemistry, Masaryk University, 625 00 Brno, Czech Republic
| | - Daniel Rojas
- Department
of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Alcalá de Henares 28802, Madrid, Spain
| | - Alberto Escarpa
- Department
of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Alcalá de Henares 28802, Madrid, Spain
- Chemical
Research Institute “Andres M. Del Rio”, University of Alcalá, Alcalá
de Henares 28802, Madrid, Spain
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28
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Lee YJ, Kim YH, Lee EK. PEDOT:PSS-Based Prolonged Long-Term Decay Synaptic OECT with Proton-Permeable Material, Nafion. Macromol Rapid Commun 2024:e2400165. [PMID: 38924243 DOI: 10.1002/marc.202400165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/21/2024] [Indexed: 06/28/2024]
Abstract
Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), a conductive polymer, has gained popularity as the channel layer in organic electrochemical transistors (OECTs) due to its high conductivity and straightforward processing. However, difficulties arise in controlling its conductivity through gate voltage, presenting a challenge. To address this issue, aromatic amidine base, diazabicyclo[4.3.0]non-5-ene (DBN), is used to stabilize the doping state of the PEDOT chain through a reliable chemical de-doping process. Furthermore, the addition of the proton-penetrable material Nafion to the PEDOT:PSS channel layer induces phase separation between the substances. By utilizing a solution containing both PEDOT:PSS and Nafion as the channel layer of OECTs, the efficiency of ion movement into the channel from the electrolyte is enhanced, resulting in improved OECT performance. The inclusion of Nafion in the OECTs' channel layer modifies ion movement dynamics, allowing for the adjustment of synaptic properties such as pulse-paired facilitation, memory level, short-term plasticity, and long-term plasticity. This research aims to introduce new possibilities in the field of neuromorphic computing and contribute to biomimetic technology through the enhancement of electronic component performance.
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Affiliation(s)
- Ye Ji Lee
- Department of Chemical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Yong Hyun Kim
- Department of Smart Green Technology Engineering, Pukyong National University, Busan, 48513, Republic of Korea
- School of Electrical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Eun Kwang Lee
- Department of Chemical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
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29
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Jain S, Sonia J, Prashanth S, Sanjeeva SG, Prasad KS, Johnson RP. Polytyrosine-Coated Paper Electrode for Sensitive and Selective Sensing of NADH. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13144-13154. [PMID: 38869442 DOI: 10.1021/acs.langmuir.4c01125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Reduced nicotinamide adenine dinucleotide (NADH)-detecting electrochemical sensors are attractive in monitoring and diagnosing various physiological disorders of NADH abnormalities. The NADH detection methods using conventional electrodes are challenging due to slow electron transfer and fouling effect. Interestingly, paper-based flexible and disposable electrodes (PE) are superior for sensing biomolecules through simple detection procedures with excellent sensitivity and selectivity. Herein, to construct a conducting polypeptide-modified paper electrode, initially, polytyrosine (PTyr) is synthesized from l-tyrosine N-carboxy anhydride through ring-opening polymerization, and PTyr is drop-coated on the PE. The PTyr-modified paper electrode (PMPE) demonstrated excellent electrochemical properties and facilitated the electrooxidation of NADH at a lower potential of 576 mV. The PMPE displayed a linear detection between 25 and 145 μM of NADH concentration, with a lower detection limit of 0.340 μM. Under ideal circumstances, the sensor developed displayed an excellent NADH detection capability without interference with the most common electroactive species, ascorbic acid. The PMPE facilitates good electrocatalytic activity toward NADH, which can also be employed as a substrate material for biofuel cells.
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Affiliation(s)
- Supriya Jain
- Polymer Nanobiomaterial Research Laboratory, Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575 018, India
| | - Joseph Sonia
- Nanomaterial Research Laboratory (NMRL), Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
| | - Sharmila Prashanth
- Nanomaterial Research Laboratory (NMRL), Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
| | - Sandesh G Sanjeeva
- Polymer Nanobiomaterial Research Laboratory, Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575 018, India
| | - K Sudhakara Prasad
- Nanomaterial Research Laboratory (NMRL), Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
- Centre for Nutrition Studies, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
| | - Renjith P Johnson
- Polymer Nanobiomaterial Research Laboratory, Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575 018, India
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30
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Guo X, Sun C, Liu H. Triangular Triazine-Triphenylamine Functionalized Hybrid Fluorescent Porous Polymers for Detection and Photodegradation of Tetracycline Hydrochloride. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13070-13081. [PMID: 38860681 DOI: 10.1021/acs.langmuir.4c00800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
First, an organic semiconductor fluorescent molecule of 4',4″,4"'-(2,4,6-triphenyl-1,3,5-triazine)-4-(N,N-diphenyl-(1,1'-biphenyl)-4-amine (TPTz) is successfully synthesized by the Suzuki-Miyaura coupling reaction of 2,4,6-tris(4-bromophenyl)-1,3,5-triazine with 4-(diphenylamino)phenylboronic acid. TPTz offers as high as 85% fluorescence quantum yield and a strong solvent effect, with fluorescent colors across the visible spectrum in different solvents. Then, an organic-inorganic hybrid fluorescent porous polymer of PCS-TPTz with a surface area of 714 m2 g-1 and pore volume of 0.660 cm3 g-1 is prepared by the Friedel-Crafts reaction of TPTz and octavinylsilsesquioxane; PCS-TPTz showed a high fluorescence quantum yield of 17% with a large Stokes shift of up to 280 nm. The excellent fluorescence properties and insolubility of PCS-TPTz make it to act as a heterophase sensor for tetracycline hydrochloride (TH) with a KSV of 2.39 × 104 M-1. In addition, PCS-TPTz exhibits an excellent photodegradation activity for antibiotic TH without the requirement for additional oxidants or pH adjustments. ESR spectra and free radical trapping experiment indicate that superoxide radical (•O2-) is the active radical for achieving the photodegradation. The simultaneous detection and degradation of TH are achieved by PCS-TPTz.
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Affiliation(s)
- Xiaolin Guo
- International Center for Interdisciplinary Research and Innovation of Silsesquioxane Science, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nan lu, Jinan 250100, China
| | - Chenyu Sun
- International Center for Interdisciplinary Research and Innovation of Silsesquioxane Science, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nan lu, Jinan 250100, China
| | - Hongzhi Liu
- International Center for Interdisciplinary Research and Innovation of Silsesquioxane Science, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 27 Shanda Nan lu, Jinan 250100, China
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31
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Schorr NB, Bhandarkar A, McBrayer JD, Talin AA. Composite Ionogel Electrodes for Polymeric Solid-State Li-Ion Batteries. Polymers (Basel) 2024; 16:1763. [PMID: 39000618 PMCID: PMC11244546 DOI: 10.3390/polym16131763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/08/2024] [Accepted: 06/17/2024] [Indexed: 07/17/2024] Open
Abstract
Realizing rechargeable cells with practical energy and power density requires electrodes with high active material loading, a remaining challenge for solid-state batteries. Here, we present a new strategy based on ionogel-derived solid-state electrolytes (SSEs) to form composite electrodes that enable high active material loading (>10 mg/cm2, ~9 mA/cm2 at 1C) in a scalable approach for fabricating Li-ion cells. By tuning the precursor and active materials composition incorporated into the composite lithium titanate electrodes, we achieve near-theoretical capacity utilization at C/5 rates and cells capable of stable cycling at 5.85 mA/cm2 (11.70 A/g) with over 99% average Coulombic efficiency at room temperature. Finally, we demonstrate a complete polymeric solid-state cell with a composite anode and a composite lithium iron phosphate cathode with ionogel SSEs, which is capable of stable cycling at a 1C rate.
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Affiliation(s)
- Noah B. Schorr
- Department of Power Sources R&D, Sandia National Laboratories, Albuquerque, NM 87123, USA
| | - Austin Bhandarkar
- Department of Material Physics, Sandia National Laboratories, Livermore, CA 94550, USA
| | - Josefine D. McBrayer
- Department of Power Sources R&D, Sandia National Laboratories, Albuquerque, NM 87123, USA
| | - A. Alec Talin
- Department of Material Physics, Sandia National Laboratories, Livermore, CA 94550, USA
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32
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Kang M, Kim D, Kim J, Kim N, Lee S. Strategies to Enrich Electrochemical Sensing Data with Analytical Relevance for Machine Learning Applications: A Focused Review. SENSORS (BASEL, SWITZERLAND) 2024; 24:3855. [PMID: 38931635 PMCID: PMC11207790 DOI: 10.3390/s24123855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/01/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
In this review, recent advances regarding the integration of machine learning into electrochemical analysis are overviewed, focusing on the strategies to increase the analytical context of electrochemical data for enhanced machine learning applications. While information-rich electrochemical data offer great potential for machine learning applications, limitations arise when sensors struggle to identify or quantitatively detect target substances in a complex matrix of non-target substances. Advanced machine learning techniques are crucial, but equally important is the development of methods to ensure that electrochemical systems can generate data with reasonable variations across different targets or the different concentrations of a single target. We discuss five strategies developed for building such electrochemical systems, employed in the steps of preparing sensing electrodes, recording signals, and analyzing data. In addition, we explore approaches for acquiring and augmenting the datasets used to train and validate machine learning models. Through these insights, we aim to inspire researchers to fully leverage the potential of machine learning in electroanalytical science.
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Affiliation(s)
- Mijeong Kang
- Department of Optics and Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Republic of Korea
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Republic of Korea
| | - Donghyeon Kim
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Republic of Korea
| | - Jihee Kim
- Department of Optics and Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Republic of Korea
| | - Nakyung Kim
- Department of Optics and Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan 46241, Republic of Korea
| | - Seunghun Lee
- Department of Physics, Pukyong National University, Busan 48513, Republic of Korea
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Dey T, Mumbaraddi D, Wen F, Mishra V, Michaelis VK, Mar A. Are Selenides the Same as Sulfides? Structure, Spectroscopy, and Properties of Narrow-Gap Rare-Earth Semiconductors RE2Sn(S 1-xSe x) 5 ( RE = La, Ce; x = 0-0.8). Inorg Chem 2024; 63:10726-10736. [PMID: 38787891 DOI: 10.1021/acs.inorgchem.4c01362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
The ternary rare-earth sulfides RE2SnS5 (RE = La-Nd) and the partial solid solutions RE2Sn(S1-xSex)5 (RE = La, Ce; x = 0-0.8) were prepared in the form of polycrystalline samples by reaction of the elements at 900 °C and as single crystals in the presence of KBr flux. They adopt the La2SnS5-type structure (orthorhombic, space group Pbam, Z = 2) consisting of chains of edge-sharing SnCh6 octahedra separated by RE atoms. Although the cell parameters evolve smoothly in RE2Sn(S1-xSex)5, detailed structural analysis by single-crystal X-ray diffraction revealed a pronounced preference for the Se atoms to occupy two out of the three chalcogen sites, which offers a rationalization for why the all-selenide end-members RE2SnSe5 do not form. Solid-state 119Sn NMR spectra confirmed the nonrandom distribution of SnS6-nSen local environments, which could be resolved into individual resonances. The Raman spectra of RE2SnS5 compounds show an intense peak at 307-320 cm-1 assigned to a symmetric A1g mode, which is dominated by Sn-S bonds; the Raman peak intensities varied with Se substitution in La2Sn(S1-xSex)5. Optical diffuse reflectance spectra, band structure calculations, and electrochemical impedance spectra indicated that these compounds are narrow band gap semiconductors; the optical band gaps are insensitive to RE substitution in RE2SnS5 (0.7 eV) but they gradually decrease with greater Se substitution in RE2Sn(S1-xSex)5 (0.7-0.4 eV).
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Affiliation(s)
- Trinanjan Dey
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Dundappa Mumbaraddi
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Fuwei Wen
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Vidyanshu Mishra
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Vladimir K Michaelis
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Arthur Mar
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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Surendran A, Pereverzev AY, Roithová J. Intricacies of Mass Transport during Electrocatalysis: A Journey through Iron Porphyrin-Catalyzed Oxygen Reduction. J Am Chem Soc 2024; 146:15619-15626. [PMID: 38778765 PMCID: PMC11157527 DOI: 10.1021/jacs.4c04989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Electrochemical steps are increasingly attractive for green chemistry. Understanding reactions at the electrode-solution interface, governed by kinetics and mass transport, is crucial. Traditional insights into these mechanisms are limited, but our study bridges this gap through an integrated approach combining voltammetry, electrochemical impedance spectroscopy, and electrospray ionization mass spectrometry. This technique offers real-time monitoring of the chemical processes at the electrode-solution interface, tracking changes in intermediates and products during reactions. Applied to the electrochemical reduction of oxygen catalyzed by the iron(II) tetraphenyl porphyrin complex, it successfully reveals various reaction intermediates and degradation pathways under different kinetic regimes. Our findings illuminate complex electrocatalytic processes and propose new ways for studying reactions in alternating current and voltage-pulse electrosynthesis. This advancement enhances our capacity to optimize electrochemical reactions for more sustainable chemical processes.
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Affiliation(s)
- Adarsh
Koovakattil Surendran
- Department of Spectroscopy and Catalysis,
Institute for Molecules and Materials, Radboud
University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Aleksandr Y. Pereverzev
- Department of Spectroscopy and Catalysis,
Institute for Molecules and Materials, Radboud
University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Jana Roithová
- Department of Spectroscopy and Catalysis,
Institute for Molecules and Materials, Radboud
University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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Aliazizi F, Özsoylu D, Bakhshi Sichani S, Khorshid M, Glorieux C, Robbens J, Schöning MJ, Wagner P. Development and Calibration of a Microfluidic, Chip-Based Sensor System for Monitoring the Physical Properties of Water Samples in Aquacultures. MICROMACHINES 2024; 15:755. [PMID: 38930725 PMCID: PMC11205323 DOI: 10.3390/mi15060755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024]
Abstract
In this work, we present a compact, bifunctional chip-based sensor setup that measures the temperature and electrical conductivity of water samples, including specimens from rivers and channels, aquaculture, and the Atlantic Ocean. For conductivity measurements, we utilize the impedance amplitude recorded via interdigitated electrode structures at a single triggering frequency. The results are well in line with data obtained using a calibrated reference instrument. The new setup holds for conductivity values spanning almost two orders of magnitude (river versus ocean water) without the need for equivalent circuit modelling. Temperature measurements were performed in four-point geometry with an on-chip platinum RTD (resistance temperature detector) in the temperature range between 2 °C and 40 °C, showing no hysteresis effects between warming and cooling cycles. Although the meander was not shielded against the liquid, the temperature calibration provided equivalent results to low conductive Milli-Q and highly conductive ocean water. The sensor is therefore suitable for inline and online monitoring purposes in recirculating aquaculture systems.
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Affiliation(s)
- Fereshteh Aliazizi
- Laboratory for Soft Matter and Biophysics ZMB, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium; (F.A.); (S.B.S.); (M.K.); (C.G.); (P.W.)
| | - Dua Özsoylu
- Institute of Nano- and Biotechnologies INB, Aachen University of Applied Sciences, Heinrich-Mussmann-Strasse 1, D-52428 Jülich, Germany;
| | - Soroush Bakhshi Sichani
- Laboratory for Soft Matter and Biophysics ZMB, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium; (F.A.); (S.B.S.); (M.K.); (C.G.); (P.W.)
| | - Mehran Khorshid
- Laboratory for Soft Matter and Biophysics ZMB, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium; (F.A.); (S.B.S.); (M.K.); (C.G.); (P.W.)
| | - Christ Glorieux
- Laboratory for Soft Matter and Biophysics ZMB, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium; (F.A.); (S.B.S.); (M.K.); (C.G.); (P.W.)
| | - Johan Robbens
- Cell Blue Biotech and Food Integrity, Fisheries and Food ILVO, Flanders Research Institute for Agriculture, Jacobsenstraat 1, B-8400 Oostende, Belgium;
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies INB, Aachen University of Applied Sciences, Heinrich-Mussmann-Strasse 1, D-52428 Jülich, Germany;
- Institute of Biological Information Processing (IBI-3), Research Centre Jülich, D-52425 Jülich, Germany
| | - Patrick Wagner
- Laboratory for Soft Matter and Biophysics ZMB, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium; (F.A.); (S.B.S.); (M.K.); (C.G.); (P.W.)
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36
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Idei T, Pan Z, Katayama K. Combined Effect of Underlayer and Deposition Solution to Optimize the Alignment of Hematite Photoanodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11526-11533. [PMID: 38767843 DOI: 10.1021/acs.langmuir.4c00621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
This study investigates the optimization of hematite (α-Fe2O3) photoanodes for enhanced photoelectrochemical (PEC) performance and reproducibility, which are crucial for photocatalytic applications. Despite hematite's potential, hindered by inherent limitations, significant improvements were realized by introducing a titanium dioxide (TiO2) underlayer and ethanol-modified deposition. The influence of the deposition methods was understood by potential-dependent photoelectrochemical impedance spectroscopy analysis. The introduction of the TiO2 underlayer effectively increased the density of states, preferable for the electron transport in the bulk hematite, and the ethanol deposition on a TiO2 underlayer led to a stable surface state formation (S1 state) for the photoexcited hole transfer. This analysis illuminated the intricate interplay between electron transport in the bulk and photogenerated hole transfer at the solution interface, thereby facilitating smoother charge transfer. These findings underscore the viability of surface engineering and meticulous process optimization in addressing critical challenges in photocatalyst development.
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Affiliation(s)
- Takumi Idei
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan
| | - Zhenhua Pan
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan
| | - Kenji Katayama
- Department of Applied Chemistry, Chuo University, Tokyo 112-8551, Japan
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37
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Liu W, Yu J, Li T, Li S, Ding B, Guo X, Cao A, Sha Q, Zhou D, Kuang Y, Sun X. Self-protecting CoFeAl-layered double hydroxides enable stable and efficient brine oxidation at 2 A cm -2. Nat Commun 2024; 15:4712. [PMID: 38830888 PMCID: PMC11148009 DOI: 10.1038/s41467-024-49195-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/27/2024] [Indexed: 06/05/2024] Open
Abstract
Low-energy consumption seawater electrolysis at high current density is an effective way for hydrogen production, however the continuous feeding of seawater may result in the accumulation of Cl-, leading to severe anode poisoning and corrosion, thereby compromising the activity and stability. Herein, CoFeAl layered double hydroxide anodes with excellent oxygen evolution reaction activity are synthesized and delivered stable catalytic performance for 350 hours at 2 A cm-2 in the presence of 6-fold concentrated seawater. Comprehensive analysis reveals that the Al3+ ions in electrode are etched off by OH- during oxygen evolution reaction process, resulting in M3+ vacancies that boost oxygen evolution reaction activity. Additionally, the self-originated Al(OH)n- is found to adsorb on the anode surface to improve stability. An electrode assembly based on a micropore membrane and CoFeAl layered double hydroxide electrodes operates continuously for 500 hours at 1 A cm-2, demonstrating their feasibility in brine electrolysis.
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Affiliation(s)
- Wei Liu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jiage Yu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Tianshui Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Shihang Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Boyu Ding
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xinlong Guo
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Aiqing Cao
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Qihao Sha
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Daojin Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Yun Kuang
- Ocean Hydrogen Energy R&D Center, Research Institute of Tsinghua University in Shenzhen, Shenzhen, 518057, China.
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
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38
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Lee KK, Celt N, Ardoña HAM. Looking both ways: Electroactive biomaterials with bidirectional implications for dynamic cell-material crosstalk. BIOPHYSICS REVIEWS 2024; 5:021303. [PMID: 38736681 PMCID: PMC11087870 DOI: 10.1063/5.0181222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 04/15/2024] [Indexed: 05/14/2024]
Abstract
Cells exist in natural, dynamic microenvironmental niches that facilitate biological responses to external physicochemical cues such as mechanical and electrical stimuli. For excitable cells, exogenous electrical cues are of interest due to their ability to stimulate or regulate cellular behavior via cascade signaling involving ion channels, gap junctions, and integrin receptors across the membrane. In recent years, conductive biomaterials have been demonstrated to influence or record these electrosensitive biological processes whereby the primary design criterion is to achieve seamless cell-material integration. As such, currently available bioelectronic materials are predominantly engineered toward achieving high-performing devices while maintaining the ability to recapitulate the local excitable cell/tissue microenvironment. However, such reports rarely address the dynamic signal coupling or exchange that occurs at the biotic-abiotic interface, as well as the distinction between the ionic transport involved in natural biological process and the electronic (or mixed ionic/electronic) conduction commonly responsible for bioelectronic systems. In this review, we highlight current literature reports that offer platforms capable of bidirectional signal exchange at the biotic-abiotic interface with excitable cell types, along with the design criteria for such biomaterials. Furthermore, insights on current materials not yet explored for biointerfacing or bioelectronics that have potential for bidirectional applications are also provided. Finally, we offer perspectives aimed at bringing attention to the coupling of the signals delivered by synthetic material to natural biological conduction mechanisms, areas of improvement regarding characterizing biotic-abiotic crosstalk, as well as the dynamic nature of this exchange, to be taken into consideration for material/device design consideration for next-generation bioelectronic systems.
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Affiliation(s)
- Kathryn Kwangja Lee
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, USA
| | - Natalie Celt
- Department of Biomedical Engineering, University of California, Irvine, California 92697, USA
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39
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Amouzadeh Tabrizi M, Bhattacharyya P, Zheng R, You M. Electrochemical DNA-based sensors for measuring cell-generated forces. Biosens Bioelectron 2024; 253:116185. [PMID: 38457863 PMCID: PMC10947853 DOI: 10.1016/j.bios.2024.116185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 02/26/2024] [Accepted: 02/29/2024] [Indexed: 03/10/2024]
Abstract
Mechanical forces play an important role in cellular communication and signaling. We developed in this study novel electrochemical DNA-based force sensors for measuring cell-generated adhesion forces. Two types of DNA probes, i.e., tension gauge tether and DNA hairpin, were constructed on the surface of a smartphone-based electrochemical device to detect piconewton-scale cellular forces at tunable levels. Upon experiencing cellular tension, the unfolding of DNA probes induces the separation of redox reporters from the surface of the electrode, which results in detectable electrochemical signals. Using integrin-mediated cell adhesion as an example, our results indicated that these electrochemical sensors can be used for highly sensitive, robust, simple, and portable measurements of cell-generated forces.
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Affiliation(s)
- Mahmoud Amouzadeh Tabrizi
- Department of Chemistry, University of Massachusetts Amherst, 710 N. Pleasant St, Amherst, MA, 01003, USA.
| | - Priyanka Bhattacharyya
- Department of Chemistry, University of Massachusetts Amherst, 710 N. Pleasant St, Amherst, MA, 01003, USA
| | - Ru Zheng
- Department of Chemistry, University of Massachusetts Amherst, 710 N. Pleasant St, Amherst, MA, 01003, USA
| | - Mingxu You
- Department of Chemistry, University of Massachusetts Amherst, 710 N. Pleasant St, Amherst, MA, 01003, USA; Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, 710 N. Pleasant St, Amherst, MA, 01003, USA.
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40
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Panagakis GP, Machairiotis N, Tsiriva M, Theofanakis C, Tsetsa P, Pantelis AG, Thomakos N, Rodolakis A, Haidopoulos D. A Narrative Review on the Clinical Utility of Electrical Impedance Spectroscopy for Diagnosing High-Grade Cervical Intraepithelial Neoplasia. Cureus 2024; 16:e61784. [PMID: 38975502 PMCID: PMC11227105 DOI: 10.7759/cureus.61784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2024] [Indexed: 07/09/2024] Open
Abstract
Colposcopy constitutes a pivotal step in the diagnosis and management of cervical intraepithelial neoplasia; nevertheless, the method has several inherent and external limitations. Electrical impedance spectroscopic (EIS) has been among the adjuncts that have been developed to increase the diagnostic accuracy of colposcopy. EIS is based on the principle that the trajectory of electrical current alters depending on the consistency of the tissues. In the present study, we investigate the diagnostic accuracy and clinical utility of EIS by means of searching the available evidence. Our search yielded 17 articles during the period 2005-2023. Subsequently, we focused on the performance metrics of the included studies. The general concept is that EIS, in combination with colposcopy, is a method with increased sensitivity and specificity in detecting high-grade cervical intraepithelial neoplasia as compared to colposcopy alone. However, we documented a heterogeneous distribution of these and other metrics, including the positive predictive value, the negative predictive value, and the area under the receiver operating characteristic curve (AUC). Additionally, we located potential confounders that might hamper the measurements of EIS and, as such, warrant further investigation in future research. We conclude that future studies should be directed towards randomized multicentric trials, whereas the advent of artificial intelligence might improve the diagnostic accuracy of the method by helping incorporate a large amount of data.
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Affiliation(s)
- Georgios P Panagakis
- Department of Obstetrics and Gynecology, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, GRC
| | - Nikolaos Machairiotis
- Department of Obstetrics and Gynecology, Attiko University Hospital, National and Kapodistrian University of Athens, Athens, GRC
| | - Maria Tsiriva
- Department of Obstetrics and Gynecology, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, GRC
| | - Charalampos Theofanakis
- Department of Obstetrics and Gynecology, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, GRC
| | - Paraskevi Tsetsa
- Department of Obstetrics and Gynecology, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, GRC
| | - Athanasios G Pantelis
- Surgeon, Obesity and Metabolic Disorders Department, Athens Medical Group, Psychiko Clinic, Athens, GRC
| | - Nikolaos Thomakos
- Department of Obstetrics and Gynecology, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, GRC
| | - Alexandros Rodolakis
- Department of Obstetrics and Gynecology, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, GRC
| | - Dimitrios Haidopoulos
- Department of Obstetrics and Gynecology, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, GRC
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41
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Gabbett C, Kelly AG, Coleman E, Doolan L, Carey T, Synnatschke K, Liu S, Dawson A, O'Suilleabhain D, Munuera J, Caffrey E, Boland JB, Sofer Z, Ghosh G, Kinge S, Siebbeles LDA, Yadav N, Vij JK, Aslam MA, Matkovic A, Coleman JN. Understanding how junction resistances impact the conduction mechanism in nano-networks. Nat Commun 2024; 15:4517. [PMID: 38806479 PMCID: PMC11133347 DOI: 10.1038/s41467-024-48614-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/02/2024] [Indexed: 05/30/2024] Open
Abstract
Networks of nanowires, nanotubes, and nanosheets are important for many applications in printed electronics. However, the network conductivity and mobility are usually limited by the resistance between the particles, often referred to as the junction resistance. Minimising the junction resistance has proven to be challenging, partly because it is difficult to measure. Here, we develop a simple model for electrical conduction in networks of 1D or 2D nanomaterials that allows us to extract junction and nanoparticle resistances from particle-size-dependent DC network resistivity data. We find junction resistances in porous networks to scale with nanoparticle resistivity and vary from 5 Ω for silver nanosheets to 24 GΩ for WS2 nanosheets. Moreover, our model allows junction and nanoparticle resistances to be obtained simultaneously from AC impedance spectra of semiconducting nanosheet networks. Through our model, we use the impedance data to directly link the high mobility of aligned networks of electrochemically exfoliated MoS2 nanosheets (≈ 7 cm2 V-1 s-1) to low junction resistances of ∼2.3 MΩ. Temperature-dependent impedance measurements also allow us to comprehensively investigate transport mechanisms within the network and quantitatively differentiate intra-nanosheet phonon-limited bandlike transport from inter-nanosheet hopping.
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Affiliation(s)
- Cian Gabbett
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Adam G Kelly
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
- i3N/CENIMAT, Faculty of Science and Technology, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Emmet Coleman
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Luke Doolan
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Tian Carey
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Kevin Synnatschke
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Shixin Liu
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Anthony Dawson
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Domhnall O'Suilleabhain
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Jose Munuera
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
- Department of Physics, Faculty of Sciences, University of Oviedo, C/ Leopoldo Calvo Sotelo, 18, 33007, Oviedo, Asturias, Spain
| | - Eoin Caffrey
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - John B Boland
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Goutam Ghosh
- Chemical Engineering Department, Delft University of Technology, Van der Maasweg 9, NL-2629, HZ, Delft, The Netherlands
| | - Sachin Kinge
- Materials Research & Development, Toyota Motor Europe, B1930, Zaventem, Belgium
| | - Laurens D A Siebbeles
- Chemical Engineering Department, Delft University of Technology, Van der Maasweg 9, NL-2629, HZ, Delft, The Netherlands
| | - Neelam Yadav
- Department of Electronic & Electrical Engineering, Trinity College Dublin 2, Dublin 2, Ireland
| | - Jagdish K Vij
- Department of Electronic & Electrical Engineering, Trinity College Dublin 2, Dublin 2, Ireland
| | - Muhammad Awais Aslam
- Chair of Physics, Department Physics, Mechanics and Electrical Engineering, Montanuniversität Leoben, Franz Josef Strasse 18, 8700, Leoben, Austria
| | - Aleksandar Matkovic
- Chair of Physics, Department Physics, Mechanics and Electrical Engineering, Montanuniversität Leoben, Franz Josef Strasse 18, 8700, Leoben, Austria
| | - Jonathan N Coleman
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin, Dublin 2, Ireland.
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42
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Bezinge L, Shih CJ, Richards DA, deMello AJ. Electrochemical Paper-Based Microfluidics: Harnessing Capillary Flow for Advanced Diagnostics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401148. [PMID: 38801400 DOI: 10.1002/smll.202401148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/29/2024] [Indexed: 05/29/2024]
Abstract
Electrochemical paper-based microfluidics has attracted much attention due to the promise of transforming point-of-care diagnostics by facilitating quantitative analysis with low-cost and portable analyzers. Such devices harness capillary flow to transport samples and reagents, enabling bioassays to be executed passively. Despite exciting demonstrations of capillary-driven electrochemical tests, conventional methods for fabricating electrodes on paper impede capillary flow, limit fluidic pathways, and constrain accessible device architectures. This account reviews recent developments in paper-based electroanalytical devices and offers perspective by revisiting key milestones in lateral flow tests and paper-based microfluidics engineering. The study highlights the benefits associated with electrochemical sensing and discusses how the detection modality can be leveraged to unlock novel functionalities. Particular focus is given to electrofluidic platforms that embed electrodes into paper for enhanced biosensing applications. Together, these innovations pave the way for diagnostic technologies that offer portability, quantitative analysis, and seamless integration with digital healthcare, all without compromising the simplicity of commercially available rapid diagnostic tests.
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Affiliation(s)
- Léonard Bezinge
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Chih-Jen Shih
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Daniel A Richards
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Andrew J deMello
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
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43
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Joksović S, Kundačina I, Milošević I, Stanojev J, Radonić V, Bajac B. Single-Walled Carbon Nanotube-Modified Gold Leaf Immunosensor for Escherichia coli Detection. ACS OMEGA 2024; 9:22277-22284. [PMID: 38799361 PMCID: PMC11112687 DOI: 10.1021/acsomega.4c01599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/10/2024] [Accepted: 04/26/2024] [Indexed: 05/29/2024]
Abstract
The requirement to prevent foodborne illnesses underscores the need for reliable detection tools, stimulating biosensor technology with practical solutions for in-field applications. This study introduces a low-cost immunosensor based on a single-walled carbon nanotube (SWCNT)-modified gold leaf electrode (GLE) for the sensitive detection of Escherichia coli. The immunosensor is realized with a layer-by-layer (LbL) assembly technique, creating an electrostatic bond between positively charged polyethylenimine (PEI) and negatively charged carboxyl-functionalized SWCNTs on the GLE. The structural and functional characterization of the PEI-SWCNT film was performed with Raman spectroscopy, high-resolution scanning electron microscopy (HRSEM), and electrical measurements. The PEI-SWCNT film was used as a substrate for antibody immobilization, and the electrochemical sensing potential was validated using electrochemical impedance spectroscopy (EIS). The results showed a wide dynamic range of E. coli detection, 101-108 cfu/mL, with a limit of detection (LOD) of 1.6 cfu/mL in buffer and 15 cfu/mL in the aqueous solution used for cleansing fresh lettuce leaves, affirming its efficiency as a practical and affordable tool in enhancing food safety.
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Affiliation(s)
- Sara Joksović
- University of Novi Sad,
BioSense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Ivana Kundačina
- University of Novi Sad,
BioSense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Ivana Milošević
- University of Novi Sad,
BioSense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Jovana Stanojev
- University of Novi Sad,
BioSense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Vasa Radonić
- University of Novi Sad,
BioSense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
| | - Branimir Bajac
- University of Novi Sad,
BioSense Institute, Dr Zorana Đinđića 1, 21000 Novi Sad, Serbia
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44
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Favero S, Li A, Wang M, Uddin F, Kuzuoglu B, Georgeson A, Stephens IEL, Titirici MM. Poly(ionic liquid) Ionomers Help Prevent Active Site Aggregation, in Single-Site Oxygen Reduction Catalysts. ACS Catal 2024; 14:7937-7948. [PMID: 38779182 PMCID: PMC11106738 DOI: 10.1021/acscatal.4c01418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/25/2024]
Abstract
Anion exchange membrane fuel cells (AEMFCs) can produce clean electricity without the need for platinum-group metals at the cathode. To improve their durability and performance, most research investigations so far have focused on optimizing the catalyst and anion exchange membrane, while few studies have been dedicated to the effect of the ionomer. Herein, we address this gap by developing a poly(ionic liquid)-based ionomer and studying its effect on oxygen transport and oxygen reduction kinetics, in comparison to the commercial proton exchange and anion exchange ionomers Nafion and Fumion. Our study shows that the choice of ionomer has a dramatic effect on the morphology of the catalyst layer, in particular on iron aggregation. We also observed that the quality of the catalyst layer and the degree of iron aggregation can be correlated to the rheological properties of the catalyst ink. Moreover, this work highlights the impact of the ionomer on the resistance to oxygen transport and reports improved oxygen diffusion compared to Nafion, for poly(ionic liquid)s with fluorinated anions. Finally, the performance of the catalyst-ionomer layer for oxygen reduction was tested with a rotating disc electrode (RDE) and a gas diffusion electrode (GDE). We observed dramatic differences between the two configurations, which we attribute to the different morphologies of the catalyst layer. In summary, our study highlights the dramatic and overlooked effect of the ionomer and the limitations of the RDE in predicting fuel cell performance.
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Affiliation(s)
- Silvia Favero
- Department
of Chemical Engineering, Imperial College
London, SW7 2AZ London, U.K.
| | - Alain Li
- Department
of Chemical Engineering, Imperial College
London, SW7 2AZ London, U.K.
| | - Mengnan Wang
- Department
of Chemical Engineering, Imperial College
London, SW7 2AZ London, U.K.
| | - Fayyad Uddin
- Department
of Chemical Engineering, Imperial College
London, SW7 2AZ London, U.K.
| | - Bora Kuzuoglu
- Department
of Chemical Engineering, Imperial College
London, SW7 2AZ London, U.K.
| | - Arthur Georgeson
- Department
of Chemical Engineering, Imperial College
London, SW7 2AZ London, U.K.
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45
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Steiner D, Meyer A, Immohr LI, Pein-Hackelbusch M. Critical View on the Qualification of Electronic Tongues Regarding Their Performance in the Development of Peroral Drug Formulations with Bitter Ingredients. Pharmaceutics 2024; 16:658. [PMID: 38794320 PMCID: PMC11125162 DOI: 10.3390/pharmaceutics16050658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
In this review, we aim to highlight the advantages, challenges, and limitations of electronic tongues (e-tongues) in pharmaceutical drug development. The authors, therefore, critically evaluated the performance of e-tongues regarding their qualification to assess peroral formulations containing bitter active pharmaceutical ingredients. A literature search using the keywords 'electronic', 'tongue', 'bitter', and 'drug' in a Web of Science search was therefore initially conducted. Reviewing the publications of the past decade, and further literature where necessary, allowed the authors to discuss whether and how e-tongues perform as expected and whether they have the potential to become a standard tool in drug development. Specifically highlighted are the expectations an e-tongue should meet. Further, a brief insight into the technologies of the utilized e-tongues is given. Reliable protocols were found that enable (i) the qualified performance of e-tongue instruments from an analytical perspective, (ii) proper taste-masking assessments, and (iii) under certain circumstances, the evaluation of bitterness.
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Affiliation(s)
- Denise Steiner
- Institute of Pharmaceutical Technology and Biopharmaceutics, University of Muenster, Corrensstraße 48, 48149 Muenster, Germany;
| | - Alexander Meyer
- Institute for Life Science Technologies (ILT.NRW), Ostwestfalen-Lippe University of Applied Sciences and Arts, Campusallee 12, 32657 Lemgo, Germany
| | | | - Miriam Pein-Hackelbusch
- Institute for Life Science Technologies (ILT.NRW), Ostwestfalen-Lippe University of Applied Sciences and Arts, Campusallee 12, 32657 Lemgo, Germany
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46
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Szydlowska BM, Pola CC, Cai Z, Chaney LE, Hui J, Sheets R, Carpenter J, Dean D, Claussen JC, Gomes CL, Hersam MC. Biolayer-Interferometry-Guided Functionalization of Screen-Printed Graphene for Label-Free Electrochemical Virus Detection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25169-25180. [PMID: 38695741 DOI: 10.1021/acsami.4c05264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Additive manufacturing holds promise for rapid prototyping and low-cost production of biosensors for diverse pathogens. Among additive manufacturing methods, screen printing is particularly desirable for high-throughput production of sensing platforms. However, this technique needs to be combined with carefully formulated inks, rapid postprocessing, and selective functionalization to meet all requirements for high-performance biosensing applications. Here, we present screen-printed graphene electrodes that are processed with thermal annealing to achieve high surface area and electrical conductivity for sensitive biodetection via electrochemical impedance spectroscopy. As a proof-of-concept, this biosensing platform is utilized for electrochemical detection of SARS-CoV-2. To ensure reliable specificity in the presence of multiple variants, biolayer interferometry (BLI) is used as a label-free and dynamic screening method to identify optimal antibodies for concurrent affinity to the Spike S1 proteins of Delta, Omicron, and Wild Type SARS-CoV-2 variants while maintaining low affinity to competing pathogens such as Influenza H1N1. The BLI-identified antibodies are robustly bound to the graphene electrode surface via oxygen moieties that are introduced during the thermal annealing process. The resulting electrochemical immunosensors achieve superior metrics including rapid detection (55 s readout following 15 min of incubation), low limits of detection (approaching 500 ag/mL for the Omicron variant), and high selectivity toward multiple variants. Importantly, the sensors perform well on clinical saliva samples detecting as few as 103 copies/mL of SARS-CoV-2 Omicron, following CDC protocols. The combination of the screen-printed graphene sensing platform and effective antibody selection using BLI can be generalized to a wide range of point-of-care immunosensors.
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Affiliation(s)
- Beata M Szydlowska
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Cícero C Pola
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Zizhen Cai
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Lindsay E Chaney
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Janan Hui
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Robert Sheets
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Jeremiah Carpenter
- Center for Innovative Medical Devices and Sensors (REDDI Lab), Clemson University, Clemson, South Carolina 29634, United States
- Department of Bioengineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Delphine Dean
- Center for Innovative Medical Devices and Sensors (REDDI Lab), Clemson University, Clemson, South Carolina 29634, United States
- Department of Bioengineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Jonathan C Claussen
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Carmen L Gomes
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Mark C Hersam
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208, United States
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47
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Colachis M, Schlink BR, Colachis S, Shqau K, Huegen BL, Palmer K, Heintz A. Benchtop Performance of Novel Mixed Ionic-Electronic Conductive Electrode Form Factors for Biopotential Recordings. SENSORS (BASEL, SWITZERLAND) 2024; 24:3136. [PMID: 38793990 PMCID: PMC11125343 DOI: 10.3390/s24103136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/02/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
Background: Traditional gel-based (wet) electrodes for biopotential recordings have several shortcomings that limit their practicality for real-world measurements. Dry electrodes may improve usability, but they often suffer from reduced signal quality. We sought to evaluate the biopotential recording properties of a novel mixed ionic-electronic conductive (MIEC) material for improved performance. Methods: We fabricated four MIEC electrode form factors and compared their signal recording properties to two control electrodes, which are electrodes commonly used for biopotential recordings (Ag-AgCl and stainless steel). We used an agar synthetic skin to characterize the impedance of each electrode form factor. An electrical phantom setup allowed us to compare the recording quality of simulated biopotentials with ground-truth sources. Results: All MIEC electrode form factors yielded impedances in a similar range to the control electrodes (all <80 kΩ at 100 Hz). Three of the four MIEC samples produced similar signal-to-noise ratios and interfacial charge transfers as the control electrodes. Conclusions: The MIEC electrodes demonstrated similar and, in some cases, better signal recording characteristics than current state-of-the-art electrodes. MIEC electrodes can also be fabricated into a myriad of form factors, underscoring the great potential this novel material has across a wide range of biopotential recording applications.
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Affiliation(s)
- Matthew Colachis
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Bryan R. Schlink
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Sam Colachis
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Krenar Shqau
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Brittani L. Huegen
- UES, a BlueHalo Company, 4401 Dayton Xenia Road, Beavercreek, OH 45432, USA;
| | - Katherine Palmer
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
| | - Amy Heintz
- Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201, USA; (B.R.S.); (K.S.); (K.P.); (A.H.)
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48
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Korek EM, Teotia R, Herbig D, Brederlow R. Electrochemical Impedance Spectroscopy for Ion Sensors with Interdigitated Electrodes: Capacitance Calculations, Equivalent Circuit Models and Design Optimizations. BIOSENSORS 2024; 14:241. [PMID: 38785715 PMCID: PMC11117819 DOI: 10.3390/bios14050241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/05/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
Electrochemical impedance spectroscopy (EIS) is becoming more and more relevant for the characterization of biosensors employing interdigitated electrodes. We compare four different sensor topologies for an exemplary use case of ion sensing to extract recommendations for the design optimizations of impedimetric biosensors. Therefore, we first extract how sensor design parameters affect the sensor capacitance using analytical calculations and finite element (FEM) simulations. Moreover, we develop equivalent circuit models for our sensor topologies and validate them using FEM simulations. As a result, the impedimetric sensor response is better understood, and sensitive and selective frequency ranges can be determined for a given sensor topology. From this, we extract design optimizations for different sensing principles.
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Affiliation(s)
- Eva-Maria Korek
- School of Computation, Information and Technology, Technical University of Munich, 80333 Munich, Germany (D.H.); (R.B.)
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49
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Bisquert J, Roldán JB, Miranda E. Hysteresis in memristors produces conduction inductance and conduction capacitance effects. Phys Chem Chem Phys 2024; 26:13804-13813. [PMID: 38655741 PMCID: PMC11078199 DOI: 10.1039/d4cp00586d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
Memristors are devices in which the conductance state can be alternately switched between a high and a low value by means of a voltage scan. In general, systems involving a chemical inductor mechanism as solar cells, asymmetric nanopores in electrochemical cells, transistors, and solid state memristive devices, exhibit a current increase and decrease over time that generates hysteresis. By performing small signal ac impedance spectroscopy, we show that memristors, or any other system with hysteresis relying on the conductance modulation effect, display intrinsic dynamic inductor-like and capacitance-like behaviours in specific input voltage ranges. Both the conduction inductance and the conduction capacitance originate in the same delayed conduction process linked to the memristor dynamics and not in electromagnetic or polarization effects. A simple memristor model reproduces the main features of the transition from capacitive to inductive impedance spectroscopy spectra, which causes a nonzero crossing of current-voltage curves.
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Affiliation(s)
- Juan Bisquert
- Institute of Advanced Materials (INAM), Universitat Jaume I, 12006 Castelló, Spain.
| | - Juan B Roldán
- Departamento de Electrónica y Tecnología de Computadores, Universidad de Granada, Facultad de Ciencias, Avd. Fuentenueva s/n, 18071 Granada, Spain
| | - Enrique Miranda
- Dept. Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
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50
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Tropea A, Spadaro D, Trocino S, Giuffrida D, Salerno TMG, Ruiz-Sanchez JP, Montañez J, Morales-Oyervides L, Dufossé L, Mondello L, Calogero G. Development of dye-sensitized solar cells using pigment extracts produced by Talaromyces atroroseus GH2. Photochem Photobiol Sci 2024; 23:941-955. [PMID: 38643418 DOI: 10.1007/s43630-024-00566-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/18/2024] [Indexed: 04/22/2024]
Abstract
The identification of more efficient, clean, secure, and competitive energy supply is necessary to align with the needs of sustainable devices. For this reason, a study for developing innovative dye-sensitized solar cells (DSSCs) based on microbial pigments is reported starting from Talaromyces atroroseus GH2. The fungus was cultivated by fermentation and the extracellular pigment extract was characterized by HPLC-DAD-ESI-MS analyses. The most abundant compound among the 22 azaphilone-type pigments identified was represented by PP-O. The device's behavior was investigated in relation to electrolyte and pH for verifying the stability on time and the photovoltaic performance. Devices obtained were characterized by UV-vis measurements to verify the absorbance intensity and transmittance percentage. Moreover, photovoltaic parameters through photo-electrochemical measurements (I-V curves) and impedance characteristics by Electrochemical Impedance Spectroscopy (EIS) were determined. The best microbial device showed a short-circuit current density (Jsc) of 0.69 mA/cm2, an open-circuit photo-voltage (Voc) of 0.27 V and a Fill Factor (FF) of 0.60. Furthermore, the power conversion efficiency (PCE) of the device was 0.11%. Thus, the present study demonstrated the potential of microbial origin pigments for developing DSSCs.
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Affiliation(s)
- Alessia Tropea
- Messina Institute of Technology c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, Former Veterinary School, University of Messina, Viale G. Palatucci Snc, 98168, Messina, Italy
| | - Donatella Spadaro
- Institute for Chemical and Physical Processes (IPCF)- National Research Council - Messina, Viale Ferdinando Stagno d'Alcontres, N. 37, 98158, Messina, Italy.
| | - Stefano Trocino
- Institute for Advanced Energy Technologies "Nicola Giordano" (ITAE) - National Research Council (CNR), Via Salita S. Lucia Sopra Contesse, N. 5, 98126, Messina, Italy
| | - Daniele Giuffrida
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Via Consolare Valeria, 98125, Messina, Italy
| | - Tania Maria Grazia Salerno
- Messina Institute of Technology c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, Former Veterinary School, University of Messina, Viale G. Palatucci Snc, 98168, Messina, Italy
| | - Juan Pablo Ruiz-Sanchez
- Facultad de Ciencias Quimicas, Universidad Autonoma de Coahuila, Unidad Saltillo, 25280, Saltillo, Coahuila, Mexico
| | - Julio Montañez
- Facultad de Ciencias Quimicas, Universidad Autonoma de Coahuila, Unidad Saltillo, 25280, Saltillo, Coahuila, Mexico
| | - Lourdes Morales-Oyervides
- Facultad de Ciencias Quimicas, Universidad Autonoma de Coahuila, Unidad Saltillo, 25280, Saltillo, Coahuila, Mexico
| | - Laurent Dufossé
- CHEMBIOPRO Laboratoire de Chimie Et Biotechnologie Des Produits Naturels, ESIROI Agroalimentaire, Université de La Réunion, 15 Avenue René Cassin, 97400, Saint-Denis, Ile de La Réunion, France
| | - Luigi Mondello
- Messina Institute of Technology c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, Former Veterinary School, University of Messina, Viale G. Palatucci Snc, 98168, Messina, Italy
- Chromaleont S.R.L., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, Former Veterinary School, University of Messina, Viale G. Palatucci Snc, 98168, Messina, Italy
| | - Giuseppe Calogero
- Institute for Chemical and Physical Processes (IPCF)- National Research Council - Messina, Viale Ferdinando Stagno d'Alcontres, N. 37, 98158, Messina, Italy
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