1
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Zheng W, Chai J, Wu J, Zhang J, Qi H. Ultrasensitive and Real-Time Detection of Kanamycin Residues in Milk Using an Aptasensor Based on Microfluidic Capacitive Strategy. BIOSENSORS 2025; 15:322. [PMID: 40422061 DOI: 10.3390/bios15050322] [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: 04/01/2025] [Revised: 05/15/2025] [Accepted: 05/16/2025] [Indexed: 05/28/2025]
Abstract
Kanamycin (KanR) is a widely used antibiotic in human and veterinary medicine, as well as in food production and livestock breeding. However, its environmental residue and bioaccumulation in the food chain pose a great threat to human health. A real-time and sensitive aptasensor is developed for KanR detection based on a gold interdigitated electrode (IDE). A microfluidic alternating current electrothermal (ACET) effect is employed for rapid directional manipulation and enrichment of KanR molecules. As an ultrasensitive indicator, solid-liquid capacitance is adopted to reflect the tiny change on the IDE surface caused by target adsorption. The overall detection takes only 60 s from sample to result, and a wide linear detection range of 0.1 fM~1 pM, an ultra-low detection limit of 16.56 aM, and a high selectivity of 7752:1 are simultaneously achieved, with 5 times of repeated use and the shelf life of 10 days. Furthermore, the aptasensor shows excellent practicability in milk samples, with the spiked recovery rate ranging from 86.90% to 116.17%. This aptasensor with the detecting strategy provides a rapid, convenient, and cost-effective solution for real-time monitoring of KanR.
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Affiliation(s)
- Weidong Zheng
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jun Chai
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - Jian Zhang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
| | - Haochen Qi
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
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2
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Rabti A, Baachaoui S, Ghodbane O, Raouafi N. Laser-ablated graphene electrodes modified with redox melanin-like film for redox capacitive sensing via the scavenging of nitrite ions. Food Chem 2025; 469:142509. [PMID: 39719782 DOI: 10.1016/j.foodchem.2024.142509] [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: 09/24/2024] [Revised: 11/18/2024] [Accepted: 12/14/2024] [Indexed: 12/26/2024]
Abstract
Improper use and harmful effects of nitrite ions pose a significant risk to human health. To address this concern, the use of carbon-based materials for electrochemical sensing is regarded as one of the most promising detection tools for ensuring the quality of drinking water and food products. In this context, we developed laser-ablated graphene electrodes (LAGEs) by direct laser scribing on a polyimide substrate, which were subsequently modified by electrochemical deposition of a redox-active melanin-like film (MeLF/LAGEs). Electrochemical investigations showed that the polymeric film had a beneficial effect on the heterogeneous electron transfer rate and induced an increase in the electrochemically active surface area and the charge capacitance of the modified electrodes owing to the newly added catechol and o-quinone moieties. Taking advantage of the redox activity of MeLF films, in-solution probe-free redox capacitance spectroscopy was used as a sensitive and highly adaptable method for sensing nitrite ions. Upon the interaction between the nitrite ions and the MeLF/LAGE redox interface, the charge distribution and its inherent redox capacitance were altered, which allowed the successful detection of nitrite ions with a detection limit of 2.45 μM (S/N = 3) and a wide dynamic range (10 μM to 10 mM). This sensor demonstrated high recovery rates when applied to tap and mineral water samples and five different processed meat samples, highlighting its potential for the routine detection of nitrite ions through scavenging.
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Affiliation(s)
- Amal Rabti
- National Institute of Research and Physicochemical Analysis (INRAP), Laboratory of Materials, Treatment, and Analysis (LR15INRAP03), Biotechpole Sidi Thabet, 2020 Sidi Thabet, Tunisia.
| | - Sabrine Baachaoui
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092 Tunis, Tunisia
| | - Ouassim Ghodbane
- National Institute of Research and Physicochemical Analysis (INRAP), Laboratory of Materials, Treatment, and Analysis (LR15INRAP03), Biotechpole Sidi Thabet, 2020 Sidi Thabet, Tunisia
| | - Noureddine Raouafi
- Sensors and Biosensors Group, Analytical Chemistry and Electrochemistry Lab (LR99ES15), University of Tunis El Manar, Tunis El Manar, 2092 Tunis, Tunisia.
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3
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Amin N, Chen J, Cao Q, Qi H, Zhang J, He Q, Wu JJ. Low-cost portable sensor for rapid and sensitive detection of Pb 2+ ions using capacitance sensing integrated with microfluidic enrichment. Mikrochim Acta 2024; 191:718. [PMID: 39477888 DOI: 10.1007/s00604-024-06798-z] [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: 07/16/2024] [Accepted: 10/21/2024] [Indexed: 11/10/2024]
Abstract
Lead ion (Pb2+) pollution is a critical global issue due to its ability to accumulate in the human body, resulting in severe health problems. Despite extensive research efforts devoted to the detection of Pb2+ contamination, practical, rapid, and field-deployable sensors for Pb2+ is yet to be developed to effectively safeguard the environment and public health. Herein, a label-free affinity-based sensing device is developed based on printed circuit board (PCB) for low-cost, easy-to-use, and real-time on-site detection of Pb2+ ions. The sensors are prepared by forming a self-assembled monolayer of glutathione (GSH) on the surface of gold-plated PCB electrodes, which serves as a molecular probe to recognize Pb2+. Rapid and sensitive detection is achieved by using capacitance sensing integrated with microfluidic enrichment. The sensor's interfacial capacitance is used to indicate specific binding, while the capacitance reading process simultaneously induces alternating current electrothermal (ACET) acceleration of analyte's travel towards the probes. Thus, the enrichment and detection are integrated into a single step, making pre-concentration unnecessary and shortening the assay time to 30 s. This Pb2+ sensor has demonstrated one of the lowest limits of detection reported so far (1.85 fM) with a linear range of 0.01-10 pM. To evaluate the sensor's specificity, non-target metal ions are tested, all showing negligible responses. Testing of tap water sample also yields reasonable results, validating the sensor's robustness. The above-mentioned features, together with a commercial portable readout, make this sensor well-suited for point-of-use Pb2+ detection at low cost.
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Affiliation(s)
- Niloufar Amin
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, 37996, USA
| | - Jiangang Chen
- Department of Public Health, The University of Tennessee, Knoxville, TN, 37996, USA
| | - Qing Cao
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, 37996, USA
| | - Haochen Qi
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, 37996, USA
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, Zhejiang, China
| | - Jian Zhang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, Zhejiang, China
| | - Qiang He
- Department of Environmental and Civil Engineering, The University of Tennessee, Knoxville, TN, 37996, USA
| | - Jie Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, 37996, USA.
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4
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Hamsayegan S, Raissi H, Ghahari A. Selective detection of food contaminants using engineered gallium-organic frameworks with MD and metadynamics simulations. Sci Rep 2024; 14:18144. [PMID: 39103470 PMCID: PMC11300645 DOI: 10.1038/s41598-024-69111-1] [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: 05/30/2024] [Accepted: 07/31/2024] [Indexed: 08/07/2024] Open
Abstract
The exclusion mechanism of food contaminants such as bisphenol A (BPA), Flavonoids (FLA), and Goitrin (GOI) onto the novel gallium-metal organic framework (MOF) and functionalized MOF with oxalamide group (MOF-OX) is evaluated by utilizing molecular dynamics (MD) and Metadynamics simulations. The atoms in molecules (AIM) analysis detected different types of atomic interactions between contaminant molecules and substrates. To assess this procedure, a range of descriptors including interaction energies, root mean square displacement, radial distribution function (RDF), density, hydrogen bond count (HB), and contact numbers are examined across the simulation trajectories. The most important elements in the stability of the systems under examination are found to be stacking π-π and HB interactions. It was confirmed by a significant value of total interaction energy for BPA/MOF-OX (- 338.21 kJ mol-1) and BPA/MOF (- 389.95 kJ mol-1) complexes. Evaluation of interaction energies reveals that L-J interaction plays an essential role in the adsorption of food contaminants on the substrates. The free energy values for the stability systems of BPA/MOF and BPA/MOF-OX complexes at their global minima reached about BPA/MOF = - 254.29 kJ mol-1 and BPA/MOF-OX = - 187.62 kJ mol-1, respectively. Nevertheless, this work provides a new strategy for the preparation of a new hierarchical tree-dimensional of the Ga-MOF hybrid material for the adsorption and exclusion of food contaminates and their effect on human health.
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Affiliation(s)
| | - Heidar Raissi
- Department of Chemistry, University of Birjand, Birjand, Iran.
| | - Afsaneh Ghahari
- Department of Chemistry, University of Birjand, Birjand, Iran
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5
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Caglayan MO, Şahin S, Üstündağ Z. An Overview of Aptamer-Based Sensor Platforms for the Detection of Bisphenol-A. Crit Rev Anal Chem 2024; 54:1320-1341. [PMID: 36001397 DOI: 10.1080/10408347.2022.2113359] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Endocrine disruptive compounds are natural or anthropogenic environmental micropollutants that alter the function of the endocrine system ultimately damaging the metabolism. Bisphenol A (BPA) is the most common of these pollutants and it is often used in epoxy coatings and polycarbonates as a plasticizer. Therefore, monitoring BPA levels in different environments is very important and challenging. In recent years, an increasing number of BPA detection methods have been proposed. This article presents a critical review of aptamer-based electrochemical, fluorescence-based, colorimetric, and several other BPA detection platforms published in the last decade. Furthermore, a statistical evaluation has been made using principle component analysis showing analytical performance parameters do not create very different clusters. Comparisons to other BPA detection methods are also presented so that the reader has an overall literature overview.
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Affiliation(s)
| | - Samet Şahin
- Department of Bioengineering, Bilecik Şeyh Edebali University, Bilecik, Turkey
| | - Zafer Üstündağ
- Department of Chemistry, Kütahya Dumlupınar University, Kütahya, Turkey
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6
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Zhao Y, Zhang S, Yao W, Zhu Y, Qian J, Yang J, Yang N. Design and synthesis of hierarchical MnO-Fe 3O 4@C/expanded graphite composite for sensitive electrochemical detection of bisphenol A. Talanta 2024; 269:125453. [PMID: 38006729 DOI: 10.1016/j.talanta.2023.125453] [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: 05/16/2023] [Revised: 08/30/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Hierarchically nanostructured binary transition metal oxide-based materials with high conductivity and catalytic activity are quite attractive for the electrochemical quantitative detection of environmental pollutants due to their natural abundance, variable oxidation state, and excellent synergies between metal sites. Herein, a new hierarchical MnO-Fe3O4@C/expanded graphite (EG) composite is designed and synthesized through a simple and in situ annealing method with the utilization of bimetallic organic framework (FeMn-MOF)/EG precursor. The synthesized MnO-Fe3O4@C/EG composite possesses a unique hierarchical nanoarchitecture that small-sized bimetallic oxide nanoparticles of 10-40 nm completely encapsulated by amorphous carbon layers of 2-4 nm are uniformly distributed on the EG platform. This distinctive structure combines the advantages of high conductivity, excellent catalytic activity, and strong stability. Resultantly, when it is applied to monitor environmental endocrine disruptors, the sensor exhibits a significant catalytic effect on the electrochemical oxidation of bisphenol A (BPA), inducing an amplified response current. In addition, the sensor shows a wide linear range of 1-50 μM and 50-400 μM for the BPA monitor, giving a sensitivity of 5208.8 and 1641.9 μA mM-1 cm-2, respectively. This study offers a new approach to design hierarchical binary metal oxide-based sensing materials as well as to explore their electrochemical properties and applications for the determination of emerging contaminants.
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Affiliation(s)
- Yao Zhao
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Shu Zhang
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Wang Yao
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Yuxuan Zhu
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Jing Qian
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China
| | - Juan Yang
- School of Chemistry and Environmental Engineering, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Lab of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, China.
| | - Nianjun Yang
- Department of Chemistry, Hasselt University, 3590, Diepenbeek, Belgium; IMO-IMOMEC, Hasselt University, 3590, Diepenbeek, Belgium
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7
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Kundu S, Biswas A, Ray A, Roy S, Das Gupta S, Ramteke MH, Kumar V, Das BK. Bisphenol A contamination in Hilsa shad and assessment of potential health hazard: A pioneering investigation in the national river Ganga, India. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132532. [PMID: 37748308 DOI: 10.1016/j.jhazmat.2023.132532] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/08/2023] [Accepted: 09/09/2023] [Indexed: 09/27/2023]
Abstract
The anadromous Hilsa, often known as the "Queen of Fishes" (Tenualosa ilisha), is the most valuable fishery in the Ganga-Hooghly delta estuary. Although BPA exposure has been shown to be harmful to aquatic organisms, no research has looked at the effects of BPA on the commercially valuable Hilsa shad of river Ganga. To close this information vacuum, we examined BPA levels in Hilsa fish from the Ganga estuary. Liver, muscle, kidney, and gonads were all positive for BPA among the Hilsa fish of all ages. Liver BPA levels were highest in adult males (272.16 ± 0.38 ng/g-dw), and lowest in juveniles (5.46 ± 0.06 ng/g-dw). BPA concentrations in the Hilsa shad muscle were highest in reproductively mature females (196.23 ± 0.41 ng/g-dw). The study also discovered a correlation between fish development and BPA exposure, with higher levels of BPA being identified in adult Hilsa species. This is the first study to look at the impact of BPA pollution on aquatic ecosystems and fisheries, and it showed that Hilsa shad is contaminated with BPA and poses health hazards to human beings. The results, which demonstrate BPA contamination, are useful for protecting Hilsa in the river Ganga.
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Affiliation(s)
- Sourav Kundu
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India
| | - Ayan Biswas
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India
| | - Archisman Ray
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India
| | - Shreya Roy
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India
| | - Subhadeep Das Gupta
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India
| | - Mitesh Hiradas Ramteke
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India
| | - Vikas Kumar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India
| | - Basanta Kumar Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, West Bengal, India.
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8
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Devi M, Wang H, Moon S, Sharma S, Strauss V. Laser-Carbonization - A Powerful Tool for Micro-Fabrication of Patterned Electronic Carbons. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211054. [PMID: 36841955 DOI: 10.1002/adma.202211054] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Fabricating electronic devices from natural, renewable resources is a common goal in engineering and materials science. In this regard, carbon is of special significance due to its biocompatibility combined with electrical conductivity and electrochemical stability. In microelectronics, however, carbon's device application is often inhibited by tedious and expensive preparation processes and a lack of control over processing and material parameters. Laser-assisted carbonization is emerging as a tool for the precise and selective synthesis of functional carbon-based materials for flexible device applications. In contrast to conventional carbonization via in-furnace pyrolysis, laser-carbonization is induced photo-thermally and occurs on the time-scale of milliseconds. By careful selection of the precursors and process parameters, the properties of this so-called laser-patterned carbon (LP-C) such as porosity, surface polarity, functional groups, degree of graphitization, charge-carrier structure, etc. can be tuned. In this critical review, a common perspective is generated on laser-carbonization in the context of general carbonization strategies, fundamentals of laser-induced materials processing, and flexible electronic applications, like electrodes for sensors, electrocatalysts, energy storage, or antennas. An attempt is made to have equal emphasis on material processing and application aspects such that this emerging technology can be optimally positioned in the broader context of carbon-based microfabrication.
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Affiliation(s)
- Mamta Devi
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh, 175075, India
| | - Huize Wang
- Department Kolloidchemie, Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Sanghwa Moon
- Department Kolloidchemie, Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Swati Sharma
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand, Himachal Pradesh, 175075, India
| | - Volker Strauss
- Department Kolloidchemie, Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Am Mühlenberg 1, 14476, Potsdam, Germany
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9
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Lucarini F, Gasco R, Staedler D. Simultaneous Quantification of 16 Bisphenol Analogues in Food Matrices. TOXICS 2023; 11:665. [PMID: 37624170 PMCID: PMC10458576 DOI: 10.3390/toxics11080665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023]
Abstract
Exposure to bisphenol analogues can occur in several ways throughout the food production chain, with their presence at higher concentrations representing a risk to human health. This study aimed to develop effective analytical methods to simultaneously quantify BPA and fifteen bisphenol analogues (i.e., bisphenol AF, bisphenol AP, bisphenol B, bisphenol BP, bisphenol C, bisphenol E, bisphenol F, bisphenol G, bisphenol M, bisphenol P, bisphenol PH, bisphenol S, bisphenol Z, bisphenol TMC, and tetramethyl bisphenol F) present in canned foods and beverages. Samples of foods and beverages available in the Swiss and EU markets (n = 22), including canned pineapples, ravioli, and beer, were prepared and analyzed using QuEChERS GC-MS. The quantification method was compared to a QuEChERS LC-MS/MS analysis. This allowed for the selective and efficient simultaneous quantitative analysis of bisphenol analogues. Quantities of these analogues were present in 20 of the 22 samples tested, with the most frequent analytes at higher concentrations: BPA and BPS were discovered in 78% and 48% of cases, respectively. The study demonstrates the robustness of QuEChERS GC-MS for determining low quantities of bisphenol analogues in canned foods. However, further studies are necessary to achieve full knowledge of the extent of bisphenol contamination in the food production chain and its associated toxicity.
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Affiliation(s)
- Fiorella Lucarini
- Department of Biomedical Sciences, University of Lausanne, 1011 Lausanne, Switzerland
- School of Engineering and Architecture, Institute of Chemical Technology, University of Applied Sciences and Arts of Western Switzerland, 1700 Fribourg, Switzerland
| | - Rocco Gasco
- Department for Environmental and Aquatic Sciences, University of Geneva, 1211 Geneva, Switzerland
| | - Davide Staedler
- Department of Biomedical Sciences, University of Lausanne, 1011 Lausanne, Switzerland
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10
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Wanjari VP, Reddy AS, Duttagupta SP, Singh SP. Laser-induced graphene-based electrochemical biosensors for environmental applications: a perspective. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:42643-42657. [PMID: 35622288 DOI: 10.1007/s11356-022-21035-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Biosensors are miniaturized devices that provide the advantage of in situ and point-of-care monitoring of analytes of interest. Electrochemical biosensors use the mechanism of oxidation-reduction reactions and measurement of corresponding electron transfer as changes in current, voltage, or other parameters using different electrochemical techniques. The use of electrochemically active materials is critical for the effective functioning of electrochemical biosensors. Laser-induced graphene (LIG) has garnered increasing interest in biosensor development and improvement due to its high electrical conductivity, specific surface area, and simple and scalable fabrication process. The effort of this perspective is to understand the existing classes of analytes and the mechanisms of their detection using LIG-based biosensors. The manuscript has highlighted the potential use of LIG, its modifications, and its use with various receptors for sensing various environmental pollutants. Although the conventional graphene-based sensors effectively detect trace levels for many analytes in different applications, the chemical and energy-intensive fabrication and time-consuming processes make it imperative to explore a low-cost and scalable option such as LIG for biosensors production. The focus of these potential biosensors has been kept on detection analytes of environmental significance such as heavy metals ions, organic and inorganic compounds, fertilizers, pesticides, pathogens, and antibiotics. The use of LIG directly as an electrode, its modifications with nanomaterials and polymers, and its combination with bioreceptors such as aptamers and polymers has been summarized. The strengths, weaknesses, opportunities, and threats analysis has also been done to understand the viability of incorporating LIG-based electrochemical biosensors for environmental applications.
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Affiliation(s)
- Vikram P Wanjari
- Centre for Research in Nanotechnology and Science, IIT Bombay, Mumbai, India
| | - A Sudharshan Reddy
- Environmental Science and Engineering Department, IIT Bombay, Mumbai, India
| | - Siddhartha P Duttagupta
- Centre for Research in Nanotechnology and Science, IIT Bombay, Mumbai, India
- Department of Electrical Engineering, IIT Bombay, Mumbai, India
| | - Swatantra P Singh
- Centre for Research in Nanotechnology and Science, IIT Bombay, Mumbai, India.
- Environmental Science and Engineering Department, IIT Bombay, Mumbai, India.
- Interdisciplinary Program in Climate Studies, IIT Bombay, Mumbai, India.
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11
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Yu Y, Joshi P, Bridges D, Fieser D, Hu A. Femtosecond Laser-Induced Nano-Joining of Volatile Tellurium Nanotube Memristor. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:789. [PMID: 36903667 PMCID: PMC10005240 DOI: 10.3390/nano13050789] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Nanowire/nanotube memristor devices provide great potential for random-access high-density resistance storage. However, fabricating high-quality and stable memristors is still challenging. This paper reports multileveled resistance states of tellurium (Te) nanotube based on the clean-room free femtosecond laser nano-joining method. The temperature for the entire fabrication process was maintained below 190 °C. A femtosecond laser joining technique was used to form nanowire memristor units with enhanced properties. Femtosecond (fs) laser-irradiated silver-tellurium nanotube-silver structures resulted in plasmonic-enhanced optical joining with minimal local thermal effects. This produced a junction between the Te nanotube and the silver film substrate with enhanced electrical contacts. Noticeable changes in memristor behavior were observed after fs laser irradiation. Capacitor-coupled multilevel memristor behavior was observed. Compared to previous metal oxide nanowire-based memristors, the reported Te nanotube memristor system displayed a nearly two-order stronger current response. The research displays that the multileveled resistance state is rewritable with a negative bias.
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Affiliation(s)
- Yongchao Yu
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Knoxville, 1512 Middle Drive, Knoxville, TN 37996, USA
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Ave., Singapore 639798, Singapore
| | - Pooran Joshi
- Oak Ridge National Lab, 1 Bethel Valley Rd., Oak Ridge, TN 37831, USA
| | - Denzel Bridges
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Knoxville, 1512 Middle Drive, Knoxville, TN 37996, USA
| | - David Fieser
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Knoxville, 1512 Middle Drive, Knoxville, TN 37996, USA
| | - Anming Hu
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Knoxville, 1512 Middle Drive, Knoxville, TN 37996, USA
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12
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Manshadi MD, Mansoorifar A, Chiao JC, Beskok A. Impedance-Based Neutralizing Antibody Detection Biosensor with Application in SARS-CoV-2 Infection. Anal Chem 2023; 95:836-845. [PMID: 36592029 PMCID: PMC9843623 DOI: 10.1021/acs.analchem.2c03193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/20/2022] [Indexed: 01/03/2023]
Abstract
Although safe and efficacious coronavirus disease-2019 (COVID-19) vaccines are available, real protective immunity is revealed by the serum COVID-19 neutralizing antibody (NAb) concentration. NAbs deactivate the virus by attaching to the viral receptor-binding domain (RBD), which interacts with angiotensin-converting enzyme 2 (ACE2) on the human cell. This paper introduces inexpensive, rapid, sensitive, and quantifiable impedance-based immunosensors to evaluate the NAb. The sensor limit of detection is experimentally determined in different buffer dilutions using bovine IgG-anti-bovine IgG interaction. The dominance of AC electrokinetic transport and molecular diffusion in the sensor is investigated using scaling analysis and numerical simulations. The results demonstrated that the sensor detection mechanism is mainly based on the diffusion of the biomolecules onto the electrode surface. After evaluating the sensor working principles, viral RBD buffers, including different NAb concentrations, are applied to the sensor, immobilized with the human ACE2 (hACE2). Results demonstrate that the sensor is capable of NAb detection in the analytical measuring interval between 45 ng/mL and 185 ng/mL. Since the present sensor provides fast test results with lower costs, it can be used to assess the NAb in people's blood serum before receiving further COVID vaccine doses.
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Affiliation(s)
- Mohammad
K. D. Manshadi
- Mechanical
Engineering Department, Southern Methodist
University, Dallas, Texas75275, United States
| | - Amin Mansoorifar
- Mechanical
Engineering Department, Southern Methodist
University, Dallas, Texas75275, United States
| | - Jung-Chih Chiao
- Electrical
and Computer Engineering Department, Southern
Methodist University, Dallas, Texas75275, United States
| | - Ali Beskok
- Mechanical
Engineering Department, Southern Methodist
University, Dallas, Texas75275, United States
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13
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Hu L, Cui J, Wang Y, Jia J. An ultrasensitive electrochemical biosensor for bisphenol A based on aptamer-modified MrGO@AuNPs and ssDNA-functionalized AuNP@MBs synergistic amplification. CHEMOSPHERE 2023; 311:137154. [PMID: 36351468 DOI: 10.1016/j.chemosphere.2022.137154] [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: 07/18/2022] [Revised: 10/30/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Bisphenol A (BPA) is a harmful endocrine disruptor, sensitive and rapid quantification of BPA is highly desirable. In this work, a novel synergistic signal-amplifying electrochemical biosensor was developed for BPA detection by using a recognition probe (RP) constructed by BPA aptamer modified gold nanoparticles-loaded magnetic reduced graphene oxide (Aptamer-MrGO@AuNPs), and a signal probe (SP) constructed by BPA aptamer-complementary single-stranded DNA (ssDNA) functionalized methylene blue (MB)-loaded gold nanoparticle (ssDNA-AuNP@MBs). The RP and SP can self-assemble to form a stable RP-SP complex through complementary base pairing. The current intensity of the biosensor correlates with the number of RP-SP complexes. In the presence of BPA, the BPA aptamer can capture BPA with high selectivity and affinity, form an RP-BPA complex and dissociate the RP-SP complex to release SP, resulting in a decrease in the current signal intensity of the biosensor. A single AuNP could be loaded with multiple BPA aptamers and MBs, which improves the recognition efficiency and enhances the signal intensity. Due to the magnetic properties of MrGO@AuNPs, the magnetic separation and adsorption of RP or RP-SP complex is very convenient, enabling all reaction processes to be carried out in solution, which not only improves the mass transfer efficiency, but also simplifies the operation. Under optimal conditions, the developed biosensor had a detection limit as low as 0.141 pg/mL and had been successfully applied to the detection of real environmental water samples. Therefore, the synergistic signal amplification strategy of RP and SP has potential value in the detection of trace pollutants in the water environment.
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Affiliation(s)
- Liuyin Hu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai, 200240, PR China
| | - Jiahua Cui
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai, 200240, PR China
| | - Yalin Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai, 200240, PR China
| | - Jinping Jia
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai, 200240, PR China; School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai, 200240, PR China.
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14
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Li RZ, Yang M, Guo L, Qu K, Jian T, Yu Y, Yan J. Laser-Induced Forward Transferred Optical Scattering Nanosilica for Transparent Displays. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3674. [PMID: 36296864 PMCID: PMC9610747 DOI: 10.3390/nano12203674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/14/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Laser printing has become a promising alternative for large-scale fabrication of functional devices. Here, laser-induced forward transfer (LIFT) of nanosilica was successfully achieved using a lower-cost nanosecond laser with a center wavelength of 1064 nm. To enhance the light absorption of silica, a small amount of graphene oxide (GO) was added to the fumed silica. Investigations were conducted to give an insight into the role of GO in the LIFT process. Pattern deposition was achieved with a minimum line width of 221 μm. The scattering can be tuned from ~2.5% to ~17.5% by changing the laser fluence. The patternable transparent display based on laser transferred nanosilica (LTNS) film was also demonstrated, showing its capability to deliver information on multiple levels. This LIFT based technique promotes fast, flexible, and low-cost manufacturing of scattering-based translucent screens or patterns for transparent displays.
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Affiliation(s)
- Ruo-Zhou Li
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
- National and Local Joint Engineering Laboratory of RF Integration and Micro Assembly Technology, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Mingqing Yang
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
- National and Local Joint Engineering Laboratory of RF Integration and Micro Assembly Technology, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Lvjiu Guo
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Ke Qu
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Tong Jian
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Ying Yu
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
- National and Local Joint Engineering Laboratory of RF Integration and Micro Assembly Technology, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Jing Yan
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
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15
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Lei Y, Zhang Y, Wang B, Zhang Z, Yuan L, Li J. A lab-on-injector device with Au nanodots confined in carbon nanofibers for in situ electrochemical BPA sensing in beverages. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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16
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Feng J, Xu R, Zhang J, Zheng Z, Zhou T. Pitaya-Structured Microspheres with Dual Laser Wavelength Responses for Polymer Laser Direct Writing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:14817-14833. [PMID: 35298126 DOI: 10.1021/acsami.2c01454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A unique pitaya-structured graphene/TiO2@PS microsphere with dual laser wavelength responses is designed and prepared via a facile approach of polymer melt blending. The graphene/TiO2 particles ("pitaya seeds") are homogeneously distributed in the polystyrene ("pitaya pulp") of the microspheres with an average size of 1.5 μm. The graphene in microspheres serves not only as a laser absorber that has responses to both 355 nm UV and 1064 nm NIR lasers but also as a reducing agent of TiO2 during laser direct writing (LDW). As expected, benefiting from the unique pitaya-structured structure, the graphene/TiO2@PS microsphere can remarkably improve the performance of both NIR and UV LDW of polymers. The results of characterizations reveal that the black color caused by NIR LDW is due to the generation of the amorphous carbon and the color change after UV LDW is owing to the formation of black sp/sp2 carbon compounds. Meanwhile, some TiO2 in microspheres is reduced into the black/gray titanium oxides of Ti2+ and Ti3+ after NIR and UV LDW, respectively. The above co-contribution endows the graphene/TiO2@PS microspheres with an outstanding color-changing ability. This pitaya-structured microsphere will have a profound effect on polymers' laser direct writing.
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Affiliation(s)
- Jin Feng
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Rui Xu
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Jihai Zhang
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Zhuo Zheng
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Tao Zhou
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University, Chengdu 610065, China
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17
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Fiodorov V, Ratautas K, Mockus Z, Trusovas R, Mikoliūnaitė L, Račiukaitis G. Laser-Assisted Selective Fabrication of Copper Traces on Polymers by Electroplating. Polymers (Basel) 2022; 14:polym14040781. [PMID: 35215694 PMCID: PMC8875099 DOI: 10.3390/polym14040781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/12/2022] [Accepted: 02/14/2022] [Indexed: 01/22/2023] Open
Abstract
The selective deposition of metals on dielectric materials is widely used in the electronic industry, making electro-conductive connections between circuit elements. We report a new low-cost laser-assisted method for the selective deposition of copper tracks on polymer surfaces by electroplating. The technique uses a laser for the selective modification of the polymer surface. The electrical conductivity of some polymers could be increased due to laser irradiation. Polyimide samples were treated using nanosecond and picosecond lasers working at a 1064 nm wavelength. An electro-conductive graphene-like layer was formed on the polymer surface after the laser treatment with selected parameters, and the copper layer thickness of 5–20 µm was deposited on the modified surface by electroplating. The selective laser-assisted electroplating technology allows the fabrication of copper tracks on complex shape dielectric materials. The technology could be used in the manufacturing of molded interconnect devices (MID).
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Affiliation(s)
- Vitalij Fiodorov
- Department of Laser Technologies, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania; (K.R.); (R.T.); (G.R.)
- Correspondence: ; Tel.: +370-6286-2878
| | - Karolis Ratautas
- Department of Laser Technologies, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania; (K.R.); (R.T.); (G.R.)
| | - Zenius Mockus
- Department of Chemical Engineering and Technology, Center for Physical Sciences and Technology, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania;
| | - Romualdas Trusovas
- Department of Laser Technologies, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania; (K.R.); (R.T.); (G.R.)
| | - Lina Mikoliūnaitė
- Department of Organic Chemistry, Center for Physical Sciences and Technology, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania;
| | - Gediminas Račiukaitis
- Department of Laser Technologies, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania; (K.R.); (R.T.); (G.R.)
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18
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Dixit N, Singh SP. Laser-Induced Graphene (LIG) as a Smart and Sustainable Material to Restrain Pandemics and Endemics: A Perspective. ACS OMEGA 2022; 7:5112-5130. [PMID: 35187327 PMCID: PMC8851616 DOI: 10.1021/acsomega.1c06093] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/19/2022] [Indexed: 05/02/2023]
Abstract
A healthy environment is necessary for a human being to survive. The contagious COVID-19 virus has disastrously contaminated the environment, leading to direct or indirect transmission. Therefore, the environment demands adequate prevention and control strategies at the beginning of the viral spread. Laser-induced graphene (LIG) is a three-dimensional carbon-based nanomaterial fabricated in a single step on a wide variety of low-cost to high-quality carbonaceous materials without using any additional chemicals potentially used for antiviral, antibacterial, and sensing applications. LIG has extraordinary properties, including high surface area, electrical and thermal conductivity, environmental-friendliness, easy fabrication, and patterning, making it a sustainable material for controlling SARS-CoV-2 or similar pandemic transmission through different sources. LIG's antiviral, antibacterial, and antibiofouling properties were mainly due to the thermal and electrical properties and texture derived from nanofibers and micropores. This perspective will highlight the conducted research and the future possibilities on LIG for its antimicrobial, antiviral, antibiofouling, and sensing applications. It will also manifest the idea of incorporating this sustainable material into different technologies like air purifiers, antiviral surfaces, wearable sensors, water filters, sludge treatment, and biosensing. It will pave a roadmap to explore this single-step fabrication technique of graphene to deal with pandemics and endemics in the coming future.
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Affiliation(s)
- Nandini Dixit
- Environmental
Science and Engineering Department (ESED), Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Swatantra P. Singh
- Environmental
Science and Engineering Department (ESED), Indian Institute of Technology Bombay, Mumbai 400076, India
- Centre
for Research in Nanotechnology & Science (CRNTS), Indian Institute of Technology Bombay, Mumbai 400076, India
- Interdisciplinary
Program in Climate Studies, Indian Institute
of Technology Bombay, Mumbai 400076, India
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19
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Zhu J, Huang X, Song W. Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives. ACS NANO 2021; 15:18708-18741. [PMID: 34881870 DOI: 10.1021/acsnano.1c05806] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Laser-induced graphene (LIG) is produced rapidly by directly irradiating carbonaceous precursors, and it naturally exhibits as a three-dimensional porous structure. Due to advantages such as simple preparation, time-saving, environmental friendliness, low cost, and expanding categories of raw materials, LIG and its derivatives have achieved broad applications in sensors. This has been witnessed in various fields such as wearable devices, disease diagnosis, intelligent robots, and pollution detection. However, despite LIG sensors having demonstrated an excellent capability to monitor physical and chemical parameters, the systematic review of synthesis, sensing mechanisms, and applications of them combined with comparison against other preparation approaches of graphene is still lacking. Here, graphene-based sensors for physical, biological, and chemical detection are reviewed first, followed by the introduction of general preparation methods for the laser-induced method to yield graphene. The preparation and advantages of LIG, sensing mechanisms, and the properties of different types of emerging LIG-based sensors are comprehensively reviewed. Finally, possible solutions to the problems and challenges of preparing LIG and LIG-based sensors are proposed. This review may serve as a detailed reference to guide the development of LIG-based sensors that possess properties for future smart sensors in health care, environmental protection, and industrial production.
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Affiliation(s)
- Junbo Zhu
- Department of Chemistry, Capital Normal University, Beijing 100048, China
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Beijing 100048, China
| | - Xian Huang
- Department of Biomedical Engineering, Tianjin University, Tianjin 300072, China
| | - Weixing Song
- Department of Chemistry, Capital Normal University, Beijing 100048, China
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Beijing 100048, China
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20
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Usha SP, Manoharan H, Deshmukh R, Álvarez-Diduk R, Calucho E, Sai VVR, Merkoçi A. Attomolar analyte sensing techniques (AttoSens): a review on a decade of progress on chemical and biosensing nanoplatforms. Chem Soc Rev 2021; 50:13012-13089. [PMID: 34673860 DOI: 10.1039/d1cs00137j] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Detecting the ultra-low abundance of analytes in real-life samples, such as biological fluids, water, soil, and food, requires the design and development of high-performance biosensing modalities. The breakthrough efforts from the scientific community have led to the realization of sensing technologies that measure the analyte's ultra-trace level, with relevant sensitivity, selectivity, response time, and sampling efficiency, referred to as Attomolar Analyte Sensing Techniques (AttoSens) in this review. In an AttoSens platform, 1 aM detection corresponds to the quantification of 60 target analyte molecules in 100 μL of sample volume. Herein, we review the approaches listed for various sensor probe design, and their sensing strategies that paved the way for the detection of attomolar (aM: 10-18 M) concentration of analytes. A summary of the technological advances made by the diverse AttoSens trends from the past decade is presented.
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Affiliation(s)
- Sruthi Prasood Usha
- Biomedical Engineering, Department of Applied Mechanics, Indian Institute of Technology Madras (IITM), India.
| | - Hariharan Manoharan
- Biomedical Engineering, Department of Applied Mechanics, Indian Institute of Technology Madras (IITM), India.
| | - Rehan Deshmukh
- Biomedical Engineering, Department of Applied Mechanics, Indian Institute of Technology Madras (IITM), India.
| | - Ruslan Álvarez-Diduk
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència i Nanotecnologia (ICN2), Campus UAB, Barcelona, Spain.
| | - Enric Calucho
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència i Nanotecnologia (ICN2), Campus UAB, Barcelona, Spain.
| | - V V R Sai
- Biomedical Engineering, Department of Applied Mechanics, Indian Institute of Technology Madras (IITM), India.
| | - Arben Merkoçi
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència i Nanotecnologia (ICN2), Campus UAB, Barcelona, Spain. .,ICREA, Institució Catalana de Recercai Estudis Avançats, Barcelona, Spain
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21
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Mirzajani H, Cheng C, Vafaie RH, Wu J, Chen J, Eda S, Aghdam EN, Ghavifekr HB. Optimization of ACEK-enhanced, PCB-based biosensor for highly sensitive and rapid detection of bisphenol a in low resource settings. Biosens Bioelectron 2021; 196:113745. [PMID: 34753078 DOI: 10.1016/j.bios.2021.113745] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/18/2021] [Accepted: 10/28/2021] [Indexed: 11/02/2022]
Abstract
In this study, we developed a low-cost and easy-to-use capacitive biosensor employing printed-circuit-board (PCB)-based technique for electrode fabrication and a specific alternative current (AC) signal for AC Electrokinetics (ACEK) effect excitation. Fast, accurate, and highly sensitive detection and quantification of bisphenol A (BPA) was achieved. An easy characterization of the biofunctionalization process is introduced by measuring interfacial capacitance which is simple and superior to most of methods currently in use. The frequency and amplitude of the AC signal used for capacitive interrogation were optimized to achieve maximum interfacial capacitance and maximum sensitivity. To evaluate the performance of the developed biosensor, its operation was compared with in-house microfabricated and commercially available electrodes. The limit-of-detection (LOD) obtained using the PCB-based electrodes was found to be at least one order of magnitude lower than that obtained with the commercial and in-house microfabricated electrodes. The linear range for BPA detection was wide from 1 fM to 10 pM with an LOD of 109.5 aM and sample to result in 20s. The biosensor operation was validated by spike-and-recovery tests of BPA using commercial food samples. Thus, the platform has a potential as an on-site detection of bisphenol A in low-resource settings.
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Affiliation(s)
- Hadi Mirzajani
- The University of Tennessee, Knoxville, Department of Electrical Engineering and Computer Science, 1520 Middle Drive, Knoxville, TN, 37966, USA; Department of Mechanical Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, 34450 Istanbul, Turkey; Sahand University of Technology, Department of Electrical Engineering, Microelectronics Research Lab., Tabriz, Iran
| | - Cheng Cheng
- The University of Tennessee, Knoxville, Department of Electrical Engineering and Computer Science, 1520 Middle Drive, Knoxville, TN, 37966, USA; School of Engineering and Computer Science, Morehead State University, 150 University Blvd., Morehead, KY, 40351, USA
| | | | - Jayne Wu
- The University of Tennessee, Knoxville, Department of Electrical Engineering and Computer Science, 1520 Middle Drive, Knoxville, TN, 37966, USA.
| | - Jiangang Chen
- The University of Tennessee, Department of Public Health, 1914 Andy Holt Avenue, Knoxville, TN, 37996, USA
| | - Shigotoshi Eda
- University of Tennessee Institute of Agriculture, Department of Forestry, Wildlife and Fisheries, 2505 E. J. Chapman Drive, Knoxville, TN, 37996, USA
| | - Esmaeil Najafi Aghdam
- Sahand University of Technology, Department of Electrical Engineering, Microelectronics Research Lab., Tabriz, Iran
| | - Habib Badri Ghavifekr
- Sahand University of Technology, Department of Electrical Engineering, Microelectronics Research Lab., Tabriz, Iran
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22
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Santos NF, Rodrigues J, Pereira SO, Fernandes AJS, Monteiro T, Costa FM. Electrochemical and photoluminescence response of laser-induced graphene/electrodeposited ZnO composites. Sci Rep 2021; 11:17154. [PMID: 34433863 PMCID: PMC8387487 DOI: 10.1038/s41598-021-96305-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 08/02/2021] [Indexed: 02/07/2023] Open
Abstract
The inherent scalability, low production cost and mechanical flexibility of laser-induced graphene (LIG) combined with its high electrical conductivity, hierarchical porosity and large surface area are appealing characteristics for many applications. Still, other materials can be combined with LIG to provide added functionalities and enhanced performance. This work exploits the most adequate electrodeposition parameters to produce LIG/ZnO nanocomposites. Low-temperature pulsed electrodeposition allowed the conformal and controlled deposition of ZnO rods deep inside the LIG pores whilst maintaining its inherent porosity, which constitute fundamental advances regarding other methods for LIG/ZnO composite production. Compared to bare LIG, the composites more than doubled electrode capacitance up to 1.41 mF cm-2 in 1 M KCl, while maintaining long-term cycle stability, low ohmic losses and swift electron transfer. The composites also display a luminescence band peaked at the orange/red spectral region, with the main excitation maxima at ~ 3.33 eV matching the expected for the ZnO bandgap at room temperature. A pronounced sub-bandgap tail of states with an onset absorption near 3.07 eV indicates a high amount of defect states, namely surface-related defects. This work shows that these environmentally sustainable multifunctional nanocomposites are valid alternatives for supercapacitors, electrochemical/optical biosensors and photocatalytic/photoelectrochemical devices.
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Affiliation(s)
- N F Santos
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
| | - J Rodrigues
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - S O Pereira
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - A J S Fernandes
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - T Monteiro
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - F M Costa
- I3N, Department of Physics, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
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23
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Cheng C, Wu JJ, Chen J. A Sensitive and Specific Genomic RNA Sensor for Point-of-Care Screening of Zika Virus from Serum. Anal Chem 2021; 93:11379-11387. [PMID: 34378378 DOI: 10.1021/acs.analchem.0c05415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This work presents a sensitive and specific single-step RNA sensor for Zika virus (ZIKV) in serum. Using AC electrokinetics (ACEK)-enhanced capacitive sensing technology, ZIKV genomic RNA (gRNA) can be directly detected from serum. The sensors are interdigitated electrodes modified with oligonucleotide probes complementary to the conserved regions of ZIKV gRNA. The ACEK capacitive sensing applies an optimized AC excitation signal over the sensor, which induces ACEK microfluidic enrichment of analytes and also simultaneously performs real-time monitoring of hybridization of ZIKV gRNA on the sensor surface. Hence, the sensing procedures are simple with rapid turn-around time and good specificity and sensitivity. A series of experiments are conducted to optimize the sensor performance. The performance of the sensor is investigated for three different probes, two functionalization buffers, and different hybridization buffers. With the optimized sensing protocol, this method can detect spiked ZIKV gRNA from human serum within 30 s and reach a limit of detection of 78.8 copies/μL in analytical samples and as low as 287.5 copies/μL in neat serum. The sensors can successfully differentiate between the RNAs of the ZIKV and dengue virus, two viruses with similar transmission paths and symptoms. The sensor is simple to use and requires no labeling or sophisticated process typically involved in a polymerase chain reaction, hybridization chain reaction, or nucleic acid sequence-based amplification.
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Affiliation(s)
- Cheng Cheng
- School of Engineering and Computer Science, Morehead State University, 150 University Blvd., Morehead, Kentucky 40351, United States.,Department of Electrical Engineering and Computer Science, The University of Tennessee, 1520 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Jie Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, 1520 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Jiangang Chen
- Department of Public Health, The University of Tennessee, 1914 Andy Holt Avenue, Knoxville, Tennessee 37996, United States
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24
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Thi Huong V, Thi Ta HK, Mai NXD, Van Tran TT, Khuyen BX, Trinh KTL, Lee NY, Phan BT, Tran NHT. Development of a highly sensitive sensor chip using optical diagnostic based on functionalized plasmonically active AuNPs. NANOTECHNOLOGY 2021; 32:335505. [PMID: 33979787 DOI: 10.1088/1361-6528/ac0080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
Measuring solution concentration plays an important role in chemical, biochemical, clinical diagnosis, environmental monitoring, and biological analyses. In this work, we develop a transmission-mode localized surface plasmon resonance sensor chip system and convenient method which is highly efficient, highly sensitive for detection sensing using multimode fiber. The plasmonically active sensor's surface AuNPs with high-density NPs were decorated onto 1 cm sensing length of various clad-free fiber in the form of homogeneous monolayer utilizing a self-assembly process for immobilization of the target molecule. The carboxyl bond is formed through a functional reaction on the sensor head. Using the significance in the refractive index difference and numerical aperture, which is caused by a variation in the concentration of measuring bovine serum albumin (BSA) protein which can be accurately measured by the output signal. The refractive index variation of the medium analyte layer can be converted to signal output power change at the He-Ne wavelength of 632.8 nm. The sensor detection limit was estimated to be 0.075 ng ml-1for BSA protein which shows high sensitivity compared to other types of label-free optical biosensors. This also leads to a possibility of finding the improvement in the sensitivity label-free biosensors. The conventional method should allow multimode fiber biosensors to become a possible replacement for conventional biosensing techniques based on fluorescence.
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Affiliation(s)
- Vu Thi Huong
- Faculty Department of Information Communication, Convergence Technology, Soongsil University, Seoul 06978, Republic of Korea
| | - Hanh Kieu Thi Ta
- Faculty of Materials Science and Technology, University of Science, HoChiMinh City, Vietnam
- Vietnam National University, HoChiMinh City, Vietnam
- Center for Innovative Materials and Architectures (INOMAR), HoChiMinh City, Vietnam
| | - Ngoc Xuan Dat Mai
- Vietnam National University, HoChiMinh City, Vietnam
- Center for Innovative Materials and Architectures (INOMAR), HoChiMinh City, Vietnam
| | - Thi Thanh Van Tran
- Faculty of Materials Science and Technology, University of Science, HoChiMinh City, Vietnam
- Vietnam National University, HoChiMinh City, Vietnam
| | - Bui Xuan Khuyen
- Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Kieu The Loan Trinh
- Department of Industrial Environmental Engineering, College of Industrial Environmental Engineering, Gachon University, Seongnam-si, Gyeonggi-do 13120, Republic of Korea
| | - Nae Yoon Lee
- Department of BioNano Technology, Gachon University, Seongnam-si, Gyeonggi-do 13120, Republic of Korea
| | - Bach Thang Phan
- Vietnam National University, HoChiMinh City, Vietnam
- Center for Innovative Materials and Architectures (INOMAR), HoChiMinh City, Vietnam
- Laboratory of Advanced Materials, University of Science, HoChiMinh City, Vietnam
| | - Nhu Hoa Thi Tran
- Faculty of Materials Science and Technology, University of Science, HoChiMinh City, Vietnam
- Vietnam National University, HoChiMinh City, Vietnam
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25
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Fan X, Zhang H, Zhao X, Lv K, Zhu T, Xia Y, Yang C, Bai C. Three-dimensional SERS sensor based on the sandwiched G@AgNPs@G/PDMS film. Talanta 2021; 233:122481. [PMID: 34215109 DOI: 10.1016/j.talanta.2021.122481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 11/28/2022]
Abstract
Three-dimensional (3D) SERS substrate with the denser "hotspots" is synthesized by the constriction of PDMS film decorated with sandwiched graphene@AgNPs@graphene (G@AgNPs@G) nanostructure. Graphene layers above and below the AgNPs are used to absorb molecules onto the "hotspots", and prevent the oxidation of AgNPs in our design. PDMS films can be easily shrunk for 3D structures, causing advantages in enhancement ability and light-matter interaction. Benefiting from the above advantages, a detection limit of 10-14 M (CV) and enhancement factor (EF) of 3.9 × 109 were obtained in our experiment. Theoretical analyses (FDTD) were also used to study the enhancement mechanism. For practical purposes, in-situ detection of MG molecules on the fish surface and the label-free detection of DNA base of adenine (A) and cytosine (C) were also studied. The high enhancement factor, great sensitivity, reliability, and stability of substrate reasonably proved that it can be used as an excellent SERS substrate for biomolecular detection.
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Affiliation(s)
- Xiangyu Fan
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Hao Zhang
- Beijing Key Laboratory for Nano-Photonics and Nano-Structure (NPNS) Center for Condensed Matter Physics Department of Physics, Capital Normal University, Beijing, 100048, China
| | - XinRu Zhao
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Ke Lv
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Tiying Zhu
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Yaping Xia
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Cheng Yang
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China.
| | - Chengjie Bai
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China.
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26
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Rapid and Sensitive Point of Care Detection of MRSA Genomic DNA by Nanoelectrokinetic Sensors. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9050097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Biosensors have shown great potential in realizing rapid, low cost, and portable on-site detection for diseases. This work reports the development of a new bioelectronic sensor called AC electrokinetics-based capacitive (ABC) biosensor, for the detection of genomic DNA (gDNA) of methicillin-resistant Staphylococcus aureus (MRSA). The ABC sensor is based on interdigitated microelectrodes biofunctionalized with oligonucleotide probes. It uses a special AC signal for direct capacitive monitoring of topological change on nanostructured sensor surface, which simultaneously induces dielectrophoretic enrichment of target gDNAs. As a result, rapid and specific detection of gDNA/probe hybridization can be realized with high sensitivity. It requires no signal amplification such as labeling, hybridization chain reaction, or nucleic acid sequence-based amplification. This method involves only simple sample preparation. After optimization of nanostructured sensor surface and signal processing, the ABC sensor demonstrated fast turnaround of results (~10 s detection), excellent sensitivity (a detection limit of 4.7 DNA copies/µL MRSA gDNA), and high specificity, suitable for point of care diagnosis. As a bioelectronic sensor, the developed ABC sensors can be easily adapted for detections of other infectious agents.
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27
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Application of Aptamer-based Biosensor in Bisphenol A Detection. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/s1872-2040(20)60077-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Xu Y, Fei Q, Page M, Zhao G, Ling Y, Chen D, Yan Z. Laser-induced graphene for bioelectronics and soft actuators. NANO RESEARCH 2021; 14:3033-3050. [PMID: 33841746 PMCID: PMC8023525 DOI: 10.1007/s12274-021-3441-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/06/2021] [Accepted: 03/07/2021] [Indexed: 05/18/2023]
Abstract
Laser-assisted process can enable facile, mask-free, large-area, inexpensive, customizable, and miniaturized patterning of laser-induced porous graphene (LIG) on versatile carbonaceous substrates (e.g., polymers, wood, food, textiles) in a programmed manner at ambient conditions. Together with high tailorability of its porosity, morphology, composition, and electrical conductivity, LIG can find wide applications in emerging bioelectronics (e.g., biophysical and biochemical sensing) and soft robots (e.g., soft actuators). In this review paper, we first introduce the methods to make LIG on various carbonaceous substrates and then discuss its electrical, mechanical, and antibacterial properties and biocompatibility that are critical for applications in bioelectronics and soft robots. Next, we overview the recent studies of LIG-based biophysical (e.g., strain, pressure, temperature, hydration, humidity, electrophysiological) sensors and biochemical (e.g., gases, electrolytes, metabolites, pathogens, nucleic acids, immunology) sensors. The applications of LIG in flexible energy generators and photodetectors are also introduced. In addition, LIG-enabled soft actuators that can respond to chemicals, electricity, and light stimulus are overviewed. Finally, we briefly discuss the future challenges and opportunities of LIG fabrications and applications.
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Affiliation(s)
- Yadong Xu
- Department of Biomedical, Biological & Chemical Engineering, University of Missouri, Columbia, Missouri 65211 USA
| | - Qihui Fei
- Department of Biomedical, Biological & Chemical Engineering, University of Missouri, Columbia, Missouri 65211 USA
| | - Margaret Page
- Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, Missouri 65211 USA
| | - Ganggang Zhao
- Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, Missouri 65211 USA
| | - Yun Ling
- Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, Missouri 65211 USA
| | - Dick Chen
- Rock Bridge High School, Columbia, Missouri 65203 USA
| | - Zheng Yan
- Department of Biomedical, Biological & Chemical Engineering, University of Missouri, Columbia, Missouri 65211 USA
- Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, Missouri 65211 USA
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Abstract
Microsupercapacitors have attracted significant attention due to several of their advantageous characteristics such as lightweight, small volume, and planar structure that is favorable for high mechanical flexibility. Among the various micro supercapacitor forms, those with laser-induced graphene (LIG) electrodes are promising as flexible energy storage devices. While LIG microelectrodes can be fabricated simply by direct laser writing, the capacitance and energy density of these devices are limited because of the relatively low density of LIG, which leads to low surface areas. These limitations could be overcome by densifying the LIG. Here, we report the use of densified laser-induced graphene (d-LIG) to fabricate flexible micro supercapacitors. Interdigitated d-LIG electrodes were prepared by duplicate laser pyrolysis of a polyimide sheet by using a CO2 laser. A PVA-H2SO4 gel-type electrolyte was then applied to the d-LIG electrode surface to assemble a d-LIG micro supercapacitor. This d-LIG micro supercapacitor exhibited substantially increased capacitance and energy density versus conventional low-density LIG micro supercapacitors. While the d-LIG electrode exhibited a substantial change in resistance when subjected to bending at a radius of 3 mm, the change in the capacitance of the d-LIG micro supercapacitor was negligible at the same bending radius due to reinforcement by the infiltrated poly(vinyl alcohol) (PVA) electrolyte, demonstrating the potential application of d-LIG micro supercapacitors in wearable electronics.
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30
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Cai G, Yu Z, Tang D. Actuating photoelectrochemical sensing sensitivity coupling core-core-shell Fe3O4@C@TiO2 with molecularly imprinted polypyrrole. Talanta 2020; 219:121341. [DOI: 10.1016/j.talanta.2020.121341] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/21/2020] [Accepted: 06/24/2020] [Indexed: 02/07/2023]
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31
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An on-site, highly specific immunosensor for Escherichia coli detection in field milk samples from mastitis-affected dairy cattle. Biosens Bioelectron 2020; 165:112366. [DOI: 10.1016/j.bios.2020.112366] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/16/2020] [Accepted: 06/04/2020] [Indexed: 12/16/2022]
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32
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Jang J, Yeom JW, Kang WK, Haq MR, Lu X, Shin D, Kim SM, In JB. Laser Pyrolysis of Imprinted Furan Pattern for the Precise Fabrication of Microsupercapacitor Electrodes. MICROMACHINES 2020; 11:mi11080746. [PMID: 32751742 PMCID: PMC7464924 DOI: 10.3390/mi11080746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 02/04/2023]
Abstract
The design or dimension of micro-supercapacitor electrodes is an important factor that determines their performance. In this study, a microsupercapacitor was precisely fabricated on a silicon substrate by irradiating an imprinted furan micropattern with a CO2 laser beam under ambient conditions. Since furan is a carbon-abundant polymer, electrically conductive and porous carbon structures were produced by laser-induced pyrolysis. While the pyrolysis of a furan film in a general electric furnace resulted in severe cracks and delamination, the laser pyrolysis method proposed herein yielded porous carbon films without cracks or delamination. Moreover, as the imprinting process already designated the furan area for laser pyrolysis, high-precision patterning was achieved in the subsequent laser pyrolysis step. This two-step process exploited the superior resolution of imprinting for the fabrication of a laser-pyrolyzed carbon micropattern. As a result, the technical limitations of conventional laser direct writing could be overcome. The laser-pyrolyzed carbon structure was employed for microsupercapacitor electrodes. The microsupercapacitor showed a specific capacitance of 0.92 mF/cm2 at 1 mA/cm2 with a PVA-H2SO4 gel electrolyte, and retained an up to 88% capacitance after 10,000 charging/discharging cycles.
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Affiliation(s)
- Jina Jang
- Department of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea; (J.J.); (J.W.Y.); (W.K.K.); (M.R.H.); (D.S.)
| | - Jeong Woo Yeom
- Department of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea; (J.J.); (J.W.Y.); (W.K.K.); (M.R.H.); (D.S.)
| | - Won Kyu Kang
- Department of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea; (J.J.); (J.W.Y.); (W.K.K.); (M.R.H.); (D.S.)
| | - Muhammad Refatul Haq
- Department of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea; (J.J.); (J.W.Y.); (W.K.K.); (M.R.H.); (D.S.)
| | - Xun Lu
- Department of Mechanical Engineering, Yanbian University, Yanji 133002, China;
| | - Dongjun Shin
- Department of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea; (J.J.); (J.W.Y.); (W.K.K.); (M.R.H.); (D.S.)
| | - Seok-Min Kim
- Department of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea; (J.J.); (J.W.Y.); (W.K.K.); (M.R.H.); (D.S.)
- Correspondence: (S.-M.K.); (J.B.I.); Tel.: +82-2-820-5877 (S.-M.K.); +82-2-820-5971 (J.B.I.)
| | - Jung Bin In
- Department of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea; (J.J.); (J.W.Y.); (W.K.K.); (M.R.H.); (D.S.)
- Correspondence: (S.-M.K.); (J.B.I.); Tel.: +82-2-820-5877 (S.-M.K.); +82-2-820-5971 (J.B.I.)
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33
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Yagati AK, Behrent A, Beck S, Rink S, Goepferich AM, Min J, Lee MH, Baeumner AJ. Laser-induced graphene interdigitated electrodes for label-free or nanolabel-enhanced highly sensitive capacitive aptamer-based biosensors. Biosens Bioelectron 2020; 164:112272. [PMID: 32553348 DOI: 10.1016/j.bios.2020.112272] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/07/2020] [Accepted: 05/02/2020] [Indexed: 12/21/2022]
Abstract
Highly porous laser-induced graphene (LIG) is easily generated in complex electrode configurations such as interdigitated electrodes (IDEs). Here, we demonstrate that their superior capacitive response at low frequencies can be exploited in affinity biosensors using thrombin aptamers as model biorecognition elements. Of specific interest was the effect of electrode surface area on capacitance detection, and the comparison between a label-free format and enhancement strategies afforded by carboxy group bearing polymeric nanoparticles or liposomes. Electrochemical impedance spectroscopy (EIS) was used to investigate the LIG performance and optimize the biosensor design. Interestingly, the label-free strategy performed extremely well and additional labels decreased the limit of detection or increased the sensitivity only minimally. It is assumed that the highly porous nature of the LIG structures dominates the capacitive response so that labels removed from the surface have only limited influence Also, while slight performance changes can be observed for smaller vs. larger electrode structures, the performance of a LIG IDE is reasonably independent of its size. In the end, a dynamic range of 5 orders of magnitude was obtained (0.01 nM-1000 nM) with a limit of detection as low as 0.12 pM. When measured in serum, this increased to 1.3 pM. The good reproducibility (relative standard deviation (RSD), 4.90%) and repeatability (RSD, 2.59%) and good long-term stability (>7 weeks at 4 °C) prove that a LIG-based capacitance sensor is an excellent choice for affinity-based biosensor. The ease-of-production, the simplicity of modification and the superior performance even in a label-free format indicate that LIG-based biosensors should be considered in point-of-care diagnostics in the future.
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Affiliation(s)
- Ajay Kumar Yagati
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany; School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-Gu, 06974, Seoul, Republic of Korea
| | - Arne Behrent
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany
| | - Sebastian Beck
- Department of Pharmaceutical Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040, Regensburg, Germany
| | - Simone Rink
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany
| | - Achim M Goepferich
- Department of Pharmaceutical Technology, Faculty of Chemistry and Pharmacy, University of Regensburg, 93040, Regensburg, Germany
| | - Junhong Min
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-Gu, 06974, Seoul, Republic of Korea.
| | - Min-Ho Lee
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-Gu, 06974, Seoul, Republic of Korea.
| | - Antje J Baeumner
- Institute of Analytical Chemistry, Chemo-and Biosensors, Faculty of Chemistry and Pharmacy, University of Regensburg, 31, 93053, Regensburg, Germany.
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34
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Kallepalli DLN, Godfrey ATK, Walia J, Variola F, Staudte A, Zhang C, Jakubek ZJ, Corkum PB. Multiphoton laser-induced confined chemical changes in polymer films. OPTICS EXPRESS 2020; 28:11267-11279. [PMID: 32403641 DOI: 10.1364/oe.389215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
We report ultrafast-laser-induced photochemical, structural, and morphological changes in a polyimide film irradiated at the polymer-glass interface in back-incident geometry. Back-illumination creates locally hot material at the interface leading to a confined photochemical change at the interface and a morphological change through a blister formation. The laser-induced photochemical changes in polyimide resulted in new absorption and luminescence properties in the visible region. The laser-treated polyimide exhibited photoluminescence anisotropy resulting from formation of ordered polymer upon irradiation by linearly polarized ultrashort laser pulses. Confocal fluorescence microscopy resulted in similar observations to the bulk. Reflection-absorption infrared spectroscopy and X-ray photoelectron spectroscopy together indicated confinement of laser-induced chemical changes at the interface.
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35
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Wang R, Duan X, Yao J, Ruan X, Yao Y, Liu T. Processing–structure–property relationship in direct laser writing carbonization of polyimide. J Appl Polym Sci 2020. [DOI: 10.1002/app.48978] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Rui Wang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Soochow 215123 People's Republic of China
| | - Xiaoshuang Duan
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Soochow 215123 People's Republic of China
| | - Jingwen Yao
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Soochow 215123 People's Republic of China
| | - Xiaojun Ruan
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Soochow 215123 People's Republic of China
| | - Yanbo Yao
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Soochow 215123 People's Republic of China
| | - Tao Liu
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Soochow 215123 People's Republic of China
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36
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Huang L, Su J, Song Y, Ye R. Laser-Induced Graphene: En Route to Smart Sensing. NANO-MICRO LETTERS 2020; 12:157. [PMID: 32835028 PMCID: PMC7396264 DOI: 10.1007/s40820-020-00496-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/09/2020] [Indexed: 05/02/2023]
Abstract
The discovery of laser-induced graphene (LIG) from polymers in 2014 has aroused much attention in recent years. A broad range of applications, including batteries, catalysis, sterilization, and separation, have been explored. The advantages of LIG technology over conventional graphene synthesis methods are conspicuous, which include designable patterning, environmental friendliness, tunable compositions, and controllable morphologies. In addition, LIG possesses high porosity, great flexibility, and mechanical robustness, and excellent electric and thermal conductivity. The patternable and printable manufacturing process and the advantageous properties of LIG illuminate a new pathway for developing miniaturized graphene devices. Its use in sensing applications has grown swiftly from a single detection component to an integrated smart detection system. In this minireview, we start with the introduction of synthetic efforts related to the fabrication of LIG sensors. Then, we highlight the achievement of LIG sensors for the detection of a diversity of stimuli with a focus on the design principle and working mechanism. Future development of the techniques toward in situ and smart detection of multiple stimuli in widespread applications will be discussed.
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Affiliation(s)
- Libei Huang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong People’s Republic of China
| | - Jianjun Su
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong People’s Republic of China
| | - Yun Song
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong People’s Republic of China
| | - Ruquan Ye
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong People’s Republic of China
- State Key Lab of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong People’s Republic of China
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37
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Chen ZC, Chang TL, Li CH, Su KW, Liu CC. Thermally stable and uniform DNA amplification with picosecond laser ablated graphene rapid thermal cycling device. Biosens Bioelectron 2019; 146:111581. [PMID: 31629228 PMCID: PMC7126615 DOI: 10.1016/j.bios.2019.111581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/02/2019] [Accepted: 08/08/2019] [Indexed: 01/02/2023]
Abstract
Rapid thermal cycling (RTC) in an on-chip device can perform DNA amplification in vitro through precise thermal control at each step of the polymerase chain reaction (PCR). This study reports a straightforward fabrication technique for patterning an on-chip graphene-based device with hole arrays, in which the mechanism of surface structures can achieve stable and uniform thermal control for the amplification of DNA fragments. A thin-film based PCR device was fabricated using picosecond laser (PS-laser) ablation of the multilayer graphene (MLG). Under the optimal fluence of 4.72 J/cm2 with a pulse overlap of 66%, the MLG can be patterned with arrays of 250 μm2 hole surface structures. A 354-bp DNA fragment of VP1, an effective marker for diagnosing the BK virus, was amplified on an on-chip device in less than 60 min. A thin-film electrode with the aforementioned MLG as the heater was demonstrated to significantly enhance temperature stability for each stage of the thermal cycle. The temperature control of the heater was performed by means of a developed programmable PCR apparatus. Our results demonstrated that the proposed integration of a graphene-based device and a laser-pulse ablation process to form a thin-film PCR device has cost benefits in a small-volume reagent and holds great promise for practical medical use of DNA amplification.
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Affiliation(s)
- Zhao-Chi Chen
- Department of Mechatronic Engineering, National Taiwan Normal University, Taipei, Taiwan, ROC
| | - Tien-Li Chang
- Department of Mechatronic Engineering, National Taiwan Normal University, Taipei, Taiwan, ROC.
| | - Ching-Hao Li
- Department of Physiology, School of Medicine, Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
| | - Kai-Wen Su
- Integrated Science, University of British Columbia, Columbia, Canada
| | - Cheng-Che Liu
- Graduate Institute of Physiology, National Defense Medical Center, Taipei, Taiwan, ROC.
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38
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Shishov A, Gordeychuk D, Logunov L, Tumkin I. High rate laser deposition of conductive copper microstructures from deep eutectic solvents. Chem Commun (Camb) 2019; 55:9626-9628. [PMID: 31347628 DOI: 10.1039/c9cc05184h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this communication, the phenomenon of the laser chemical deposition of copper using deep eutectic solvents (DESs) on a dielectric substrate has been shown for the first time. The use of eutectic solvents made it possible to greatly simplify the procedure of metal deposition and increase the deposition rate by more than 150 times compared to the use of aqueous solutions.
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Affiliation(s)
- Andrey Shishov
- Institute of Chemistry, Saint-Petersburg University, Saint Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia.
| | - Dmitry Gordeychuk
- Institute of Chemistry, Saint-Petersburg University, Saint Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia.
| | - Lev Logunov
- Institute of Chemistry, Saint-Petersburg University, Saint Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia.
| | - Ilya Tumkin
- Institute of Chemistry, Saint-Petersburg University, Saint Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia.
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39
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Affiliation(s)
- Sandeep Ravi‐Kumar
- Department of Industrial and Manufacturing Systems Engineering Iowa State University Ames IA USA
| | - Benjamin Lies
- Department of Industrial and Manufacturing Systems Engineering Iowa State University Ames IA USA
| | - Xiao Zhang
- Department of Industrial and Manufacturing Systems Engineering Iowa State University Ames IA USA
| | - Hao Lyu
- College of Mathematics and Physics Qingdao University of Science and Technology Shandong China
| | - Hantang Qin
- Department of Industrial and Manufacturing Systems Engineering Iowa State University Ames IA USA
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Luo J, Yao Y, Niu M, Duan X, Wang R, Liu T. Direct Laser Writing-Assisted Method for Template-Free Fabrication of Biomass-Based Porous Carbon Platelets with Uniform Size and Arbitrarily Designed Shapes. ACS OMEGA 2019; 4:5870-5878. [PMID: 31459736 PMCID: PMC6648417 DOI: 10.1021/acsomega.9b00408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/07/2019] [Indexed: 05/31/2023]
Abstract
Because of a wide range of applications of porous carbon platelets (PCPs), a robust method for their facile synthesis/fabrication with controlled porous structure, size, and shape is constantly needed. Herein, we report a simple and scalable method for producing PCPs with uniform size and arbitrarily designed shapes. This approach relies on CO2 laser irradiation to induce carbonization of a biomass composite sheet formed by the infusion of sodium lignosulfonate into a cellulose paper to create porous carbon features with arbitrarily designed shapes. Upon subsequent water immersion treatment, the laser-written carbon features could spontaneously detach to form freestanding PCPs. The PCPs of different shapes were fabricated, characterized, and demonstrated for their potential applications in dye adsorption, as flexible sensors, and as miniaturized supercapacitors. Our method is expected to make great impacts in multiple fields, such as environment, energy storage, sensing, catalysis, and so forth.
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41
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Laser-Scribed Lossy Microstrip Lines for Radio Frequency Applications. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030415] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Laser-direct writing has become an alternative method to fabricate flexible electronics, whereas the resistive nature of laser-scribed conductors may distort the radio-frequency characteristics of circuits for high-frequency applications. We demonstrate that the transmission characteristics of microstrip lines are insensitive to the resistance of laser-scripted conductors when the sheet resistance is not above 0.32 Ω/□. On the other hand, the transmission and reflection characteristics of the MS lines can be simply modified through the accommodation of the resistance of the conductors, because a laser can trigger the sintering and melting of laser produced silver nanostructures. This could provide an alternative way to fabricate radio frequency (RF) resistors and promote their applications to flexible radio-frequency devices and systems.
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42
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Ye R, James DK, Tour JM. Laser-Induced Graphene: From Discovery to Translation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803621. [PMID: 30368919 DOI: 10.1002/adma.201803621] [Citation(s) in RCA: 229] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/16/2018] [Indexed: 05/18/2023]
Abstract
Laser-induced graphene (LIG) is a 3D porous material prepared by direct laser writing with a CO2 laser on carbon materials in ambient atmosphere. This technique combines 3D graphene preparation and patterning into a single step without the need for wet chemical steps. Since its discovery in 2014, LIG has attracted broad research interest, with several papers being published per month using this approach. These serve to delineate the mechanism of the LIG-forming process and to showcase the translation into many application areas. Herein, the strategies that have been developed to synthesize LIG are summarized, including the control of LIG properties such as porosity, composition, and surface characteristics, and the advancement in methodology to convert diverse carbon precursors into LIG. Taking advantage of the LIG properties, the applications of LIG in broad fields, such as microfluidics, sensors, and electrocatalysts, are highlighted. Finally, future development in biodegradable and biocompatible materials is briefly discussed.
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Affiliation(s)
- Ruquan Ye
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
- Department of Chemistry, City University of Hong Kong, Hong Kong, 999077, P. R. China
| | - Dustin K James
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
| | - James M Tour
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA
- Smalley-Curl Institute and the NanoCarbon Center, Department of Materials Science and NanoEngineering, Rice University, 6100 Main Street, Houston, TX, 77005, USA
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43
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Gao H, Li J, Xie F, Liu Y, Leng J. A novel low colored and transparent shape memory copolyimide and its durability in space thermal cycling environments. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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44
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Yu Y, Joshi PC, Wu J, Hu A. Laser-Induced Carbon-Based Smart Flexible Sensor Array for Multiflavors Detection. ACS APPLIED MATERIALS & INTERFACES 2018; 10:34005-34012. [PMID: 30215506 DOI: 10.1021/acsami.8b12626] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report a flexible sensor array electronic tongue system that is fabricated on a polymer substrate by the laser direct writing process for multiflavor detection. Electronic tongue is a sensing system that is applied to detect different elements with the same sensor array. By analyzing responses from different measurement units, it enables a cross-sensitivity, namely, the ability of the system to responding to a range of different analytes in solution without specific functionalization of sensors. In this article, a six-unit sensing array system was fabricated by a laser direct writing process. Sensing units were introduced on a flexible polyamide surface. A high surface-volume ratio porous carbon structure was created by a laser-induced carbonization process, which provides stable conductive carbon electrodes with high sensitivity. Different surface treatments, such as gold plating, reduced-graphene oxide coating, and polyaniline coating, were accomplished for different measurement units. By applying principal component analysis, this sensing system shows a promising result for the detection of multiple flavors. The detection limit for each element is about 0.1 mM for NaCl and sugar solutions. Also, it is able to detect 10-4 times diluted commercial table vinegar solution, which originally contains 5% acetic acid. The detection limit is theoretically lower than the human threshold of 10 mM for NaCl and sugar. Besides, the sensing system shows a high sensitivity and selectivity for mixed elements. By mapping the data points, the sensor system could detect flavor combinations and provide a reliable prediction of analyte concentration ratios.
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Affiliation(s)
| | - Pooran C Joshi
- Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831-6061 , United States
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Cheng C, Wu J, Chen J. A highly sensitive aptasensor for on-site detection of lipopolysaccharides in food. Electrophoresis 2018; 40:890-896. [DOI: 10.1002/elps.201800289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 02/02/2023]
Affiliation(s)
- Cheng Cheng
- Department of Engineering and Technology Management; Morehead State University; Morehead KY USA
- Department of Electrical Engineering and Computer Science; The University of Tennessee; Knoxville TN USA
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science; The University of Tennessee; Knoxville TN USA
| | - Jiangang Chen
- Department of Public Health; The University of Tennessee; Knoxville TN USA
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46
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Wang Y, Wang Y, Zhang P, Liu F, Luo S. Laser-Induced Freestanding Graphene Papers: A New Route of Scalable Fabrication with Tunable Morphologies and Properties for Multifunctional Devices and Structures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802350. [PMID: 30085386 DOI: 10.1002/smll.201802350] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/09/2018] [Indexed: 05/18/2023]
Abstract
The recently emergent laser-induced graphene (LIG) technology has endowed the fabrication of smart devices with one-step processing and scalable/designable features. Graphene paper (GP), an important architecture of 2D layered carbon, however, is never produced through LIG. Herein, a novel strategy is reported for production of freestanding GP through LIG technology. It is first determined that the unique spatial configuration of polyimide (PI) paper is critical for the preparation of GP without the appearance of intense shape distortion. Benefiting from the mechanism, the as-produced laser-induced graphene paper (LIGP) is foldable, trimmable, and integratable to customized shapes and structures with the largest dimension of 40 × 35 cm2 . Based on the processing-structure-property relationship study, one is capable of controlling and tuning various physical and chemical properties of LIGPs, rendering them unique for assembling flexible electronics and smart structures, e.g., human/robotic motion detectors, liquid sensors, water-oil separators, antibacterial media, and flame retardant/deicing/self-sensing composites. With the key findings, the escalation of LIGP for commercialization, roll-to-roll manufacturing, and multidisciplinary applications are highly expected.
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Affiliation(s)
- Yanan Wang
- School of Mechanical Engineering & Automation, Beihang University, No. 37 Xueyuan Road, Beijing, 100191, China
| | - Yong Wang
- School of Mechanical Engineering & Automation, Beihang University, No. 37 Xueyuan Road, Beijing, 100191, China
| | - Peipei Zhang
- School of Mechanical Engineering & Automation, Beihang University, No. 37 Xueyuan Road, Beijing, 100191, China
| | - Fu Liu
- School of Mechanical Engineering & Automation, Beihang University, No. 37 Xueyuan Road, Beijing, 100191, China
| | - Sida Luo
- School of Mechanical Engineering & Automation, Beihang University, No. 37 Xueyuan Road, Beijing, 100191, China
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47
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Akki SU, Werth CJ. Critical Review: DNA Aptasensors, Are They Ready for Monitoring Organic Pollutants in Natural and Treated Water Sources? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:8989-9007. [PMID: 30016080 DOI: 10.1021/acs.est.8b00558] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
There is a growing need to monitor anthropogenic organic contaminants detected in water sources. DNA aptamers are synthetic single-stranded oligonucleotides, selected to bind to target contaminants with favorable selectivity and sensitivity. These aptamers can be functionalized and are used with a variety of sensing platforms to develop sensors, or aptasensors. In this critical review, we (1) identify the state-of-the-art in DNA aptamer selection, (2) evaluate target and aptamer properties that make for sensitive and selective binding and sensing, (3) determine strengths and weaknesses of alternative sensing platforms, and (4) assess the potential for aptasensors to quantify environmentally relevant concentrations of organic contaminants in water. Among a suite of target and aptamer properties, binding affinity is either directly (e.g., organic carbon partition coefficient) or inversely (e.g., polar surface area) correlated to properties that indicate greater target hydrophobicity results in the strongest binding aptamers, and binding affinity is correlated to aptasensor limits of detection. Electrochemical-based aptasensors show the greatest sensitivity, which is similar to ELISA-based methods. Only a handful of aptasensors can detect organic pollutants at environmentally relevant concentrations, and interference from structurally similar analogs commonly present in natural waters is a yet-to-be overcome challenge. These findings lead to recommendations to improve aptasensor performance.
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Affiliation(s)
- Spurti U Akki
- Department of Civil and Environmental Engineering , University of Illinois at Urbana-Champaign , 205 North Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Charles J Werth
- Department of Civil, Architecture, and Environmental Engineering , University of Texas at Austin , 301 East Dean Keeton Street , Austin , Texas 78712 , United States
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48
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Zhang J, Oueslati R, Cheng C, Zhao L, Chen J, Almeida R, Wu J. Rapid, highly sensitive detection of Gram-negative bacteria with lipopolysaccharide based disposable aptasensor. Biosens Bioelectron 2018; 112:48-53. [PMID: 29698808 DOI: 10.1016/j.bios.2018.04.034] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/14/2018] [Accepted: 04/16/2018] [Indexed: 01/08/2023]
Abstract
Gram-negative bacteria are one of the most common microorganisms in the environment. Their differential detection and recognition from Gram-positive bacteria has been attracting much attention over the years. Using Escherichia coli (E. coli) as a model, we demonstrated on-site detection of Gram-negative bacteria by an AC electrokinetics-based capacitive sensing method using commercial microelectrodes functionalized with an aptamer specific to lipopolysaccharides. Dielectrophoresis effect was utilized to enrich viable bacteria to the microelectrodes rapidly, achieving a detection limit of 102 cells/mL within a 30 s' response time. The sensor showed a negligible response to Staphylococcus aureus (S. aureus), a Gram-positive species. The developed sensor showed significant advantages in sensitivity, selectivity, cost, operation simplicity, and response time. Therefore, this sensing method has shown great application potential for environmental monitoring, food safety, and real-time diagnosis.
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Affiliation(s)
- Jian Zhang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China; Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - Rania Oueslati
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - Cheng Cheng
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - Ling Zhao
- Department of Nutrition, The University of Tennessee, Knoxville, TN 37996, USA
| | - Jiangang Chen
- Department of Public Health, The University of Tennessee, Knoxville, TN 37996, USA
| | - Raul Almeida
- Department of Animal Science, The University of Tennessee, Knoxville, TN 37996, USA
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996, USA.
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49
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Oueslati R, Cheng C, Wu J, Chen J. Highly sensitive and specific on-site detection of serum cocaine by a low cost aptasensor. Biosens Bioelectron 2018. [PMID: 29524683 DOI: 10.1016/j.bios.2018.02.055] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Cocaine is one of the most used illegal recreational drugs. Developing an on-site test for cocaine use detection has been a focus of research effort, since it is essential to the control and legal action against drug abuse. Currently most of cocaine detection methods are time-consuming and require special or expensive equipment, and the detection often suffers from high cross-reactivity with cocaine metabolites and relative low sensitivity with the best limit of detection reported at sub nanomolar (nM) level. In this work, an aptasensor has been developed using capacitive monitoring of sensor surface incorporating alternating current electrokinetics effects to speed up molecular transport and minimize matrix effects. The aptasensor is rapid, low cost, highly sensitive and specific as well as simple-to-use for the detection of cocaine from serum. The assay has a sample-to-result time of 30 s, a limit of detection of 7.8 fM, and a linear response for cocaine ranging from 14.5fM to 14.5pM in standard buffer, which are great improvements from other reported cocaine sensors. Special buffer is used for serum cocaine detection, and a limit of detection of 13.4 fM is experimentally demonstrated for cocaine spiked in human serum (equivalent to 1.34pM cocaine in neat serum). The specificity of the biosensor is also demonstrated with structurally similar chemicals, ecgonine ethyl ester and methylecgonidine. This biosensor shows high promise in detection of low levels of cocaine from complex matrices.
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Affiliation(s)
- Rania Oueslati
- Department of Electrical Engineering and Computer Science,The University of Tennessee, Knoxville, USA
| | - Cheng Cheng
- Department of Electrical Engineering and Computer Science,The University of Tennessee, Knoxville, USA
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science,The University of Tennessee, Knoxville, USA.
| | - Jiangang Chen
- Department of Public Health, The University of Tennessee, Knoxville, USA
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50
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Hong Q, Yang L, Ge L, Liu Z, Li F. Direct-laser-writing of three-dimensional porous graphene frameworks on indium-tin oxide for sensitive electrochemical biosensing. Analyst 2018; 143:3327-3334. [DOI: 10.1039/c8an00888d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Direct-laser-writing of three-dimensional porous graphene frameworks on indium-tin-oxide glass towards the fabrication of a unique electrode with outstanding electrochemical performance.
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Affiliation(s)
- Qing Hong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
| | - Limin Yang
- College of Chemistry
- Chemical Engineering and Materials Science
- Shandong Normal University
- Jinan 250014
- P. R. China
| | - Lei Ge
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
| | - Zhenhui Liu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
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