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Moradi O. Electrochemical sensors based on carbon nanostructures for the analysis of bisphenol A-A review. Food Chem Toxicol 2022; 165:113074. [PMID: 35489466 DOI: 10.1016/j.fct.2022.113074] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/15/2022] [Accepted: 04/22/2022] [Indexed: 12/11/2022]
Abstract
Overuse of Bisphenol A (BPA), a proven endocrine disruptor, has become a serious public health problem across the world. It has the potential to harm both the environment and human health, notably reproductive disorders, heart disease, and diabetes. Accordingly, much attention has been paid to the detection of BPA to promote food safety and environmental health. Carbon based nanostructures have proven themselves well in a variety of applications, such as energy storage, catalysis and sensors, due to their remarkable properties. Therefore, researchers have recently focused on fabricating electrochemical BPA sensors based on carbon nanostructures due to their unique advantages, such as real-time monitoring, simplicity, high selectivity, high sensitivity and easy operation. The purpose of the current review was to summarize the recent findings on carbon nanostructures for electrochemically sensing the BPA, as well as relevant future prospects and ongoing challenges.
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Affiliation(s)
- Omid Moradi
- Department of Chemistry, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran.
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2
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Abstract
This perspective article describes the application opportunities of carbon nanotube (CNT) films for the energy sector. Up to date progress in this regard is illustrated with representative examples of a wide range of energy management and transformation studies employing CNT ensembles. Firstly, this paper features an overview of how such macroscopic networks from nanocarbon can be produced. Then, the capabilities for their application in specific energy-related scenarios are described. Among the highlighted cases are conductive coatings, charge storage devices, thermal interface materials, and actuators. The selected examples demonstrate how electrical, thermal, radiant, and mechanical energy can be converted from one form to another using such formulations based on CNTs. The article is concluded with a future outlook, which anticipates the next steps which the research community will take to bring these concepts closer to implementation.
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3
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Ming T, Turishchev S, Schleusener A, Parinova E, Koyuda D, Chuvenkova O, Schulz M, Dietzek B, Sivakov V. Silicon Suboxides as Driving Force for Efficient Light-Enhanced Hydrogen Generation on Silicon Nanowires. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007650. [PMID: 33522106 DOI: 10.1002/smll.202007650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/29/2020] [Indexed: 06/12/2023]
Abstract
Efficient light-stimulated hydrogen generation from top-down produced highly doped n-type silicon nanowires (SiNWs) with silver nanoparticles (AgNPs) in water-containing medium under white light irradiation is reported. It is observed that SiNWs with AgNPs generate at least 2.5 times more hydrogen than SiNWs without AgNPs. The authors' results, based on vibrational, UV-vis, and X-ray spectroscopy studies, strongly suggest that the sidewalls of the SiNWs are covered by silicon suboxides, by up to a thickness of 120 nm, with wide bandgap semiconductor properties that are similar to those of titanium dioxide and remain stable during hydrogen evolution in a water-containing medium for at least 3 h of irradiation. Based on synchrotron studies, it is found that the increase in the silicon bandgap is related to the energetically beneficial position of the valence band in nanostructured silicon, which renders these promising structures for efficient hydrogen generation.
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Affiliation(s)
- Tingsen Ming
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena, 07745, Germany
- Friedrich Schiller University Jena, Helmholtzweg 4, Jena, 07743, Germany
| | - Sergey Turishchev
- Joint Laboratory Electronic Structure of Solids, Voronezh State University, Universitetskaya pl.1, Voronezh, 394018, Russia
| | - Alexander Schleusener
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena, 07745, Germany
- Friedrich Schiller University Jena, Helmholtzweg 4, Jena, 07743, Germany
| | - Elena Parinova
- Joint Laboratory Electronic Structure of Solids, Voronezh State University, Universitetskaya pl.1, Voronezh, 394018, Russia
| | - Dmitry Koyuda
- Joint Laboratory Electronic Structure of Solids, Voronezh State University, Universitetskaya pl.1, Voronezh, 394018, Russia
| | - Olga Chuvenkova
- Joint Laboratory Electronic Structure of Solids, Voronezh State University, Universitetskaya pl.1, Voronezh, 394018, Russia
| | - Martin Schulz
- Friedrich Schiller University Jena, Helmholtzweg 4, Jena, 07743, Germany
| | - Benjamin Dietzek
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena, 07745, Germany
- Friedrich Schiller University Jena, Helmholtzweg 4, Jena, 07743, Germany
- Center of Energy and Environment Chemistry Jena (CEEC Jena), Philosophenweg 7a, Jena, 07743, Germany
| | - Vladimir Sivakov
- Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena, 07745, Germany
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4
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Khmelinskii I, Makarov V. Optical transparency and electrical conductivity of intermediate filaments in Müller cells and single-wall carbon nanotubes. Chem Phys 2019. [DOI: 10.1016/j.chemphys.2018.11.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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5
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Dongre RS, Sadasivuni KK, Deshmukh K, Mehta A, Basu S, Meshram JS, Al-Maadeed MAA, Karim A. Natural polymer based composite membranes for water purification: a review. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2018.1563116] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | | | - Kalim Deshmukh
- Department of Physics, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Akansha Mehta
- School of Chemistry & Biochemistry, Thapar University, Patiala, Punjab, India
| | - Soumen Basu
- School of Chemistry & Biochemistry, Thapar University, Patiala, Punjab, India
| | | | - Mariam Al Ali Al-Maadeed
- Materials Science & Technology Program (MATS), College of Arts & Sciences, Qatar University, Doha, Qatar
| | - Alamgir Karim
- Chemical and Biomolecular Engineering, University of Houston, Houston, TX, USA
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6
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Sha L, Gao P, Wu T, Chen Y. Chemical Ni-C Bonding in Ni-Carbon Nanotube Composite by a Microwave Welding Method and Its Induced High-Frequency Radar Frequency Electromagnetic Wave Absorption. ACS APPLIED MATERIALS & INTERFACES 2017; 9:40412-40419. [PMID: 29091402 DOI: 10.1021/acsami.7b07136] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, a microwave welding method has been used for the construction of chemical Ni-C bonding at the interface between carbon nanotubes (CNTs) and metal Ni to provide a different surface electron distribution, which determined the electromagnetic (EM) wave absorption properties based on a surface plasmon resonance mechanism. Through a serial of detailed examinations, such as X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectrum, the as-expected chemical Ni-C bonding between CNTs and metal Ni has been confirmed. And the Brunauer-Emmett-Teller and surface zeta potential measurements uncovered the great evolution of structure and electronic density compared with CNTs, metal Ni, and Ni-CNT composite without Ni-C bonding. Correspondingly, except the EM absorption due to CNTs and metal Ni in the composite, another wide and strong EM absorption band ranging from 10 to 18 GHz was found, which was induced by the Ni-C bonded interface. With a thinner thickness and more exposed Ni-C interfaces, the Ni-CNT composite displayed less reflection loss.
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Affiliation(s)
- Linna Sha
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University , Hangzhou, Zhejiang 310026, P.R. China
| | - Peng Gao
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University , Hangzhou, Zhejiang 310026, P.R. China
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7
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Cernat A, Tertiş M, Săndulescu R, Bedioui F, Cristea A, Cristea C. Electrochemical sensors based on carbon nanomaterials for acetaminophen detection: A review. Anal Chim Acta 2015; 886:16-28. [PMID: 26320632 DOI: 10.1016/j.aca.2015.05.044] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 05/22/2015] [Accepted: 05/23/2015] [Indexed: 12/14/2022]
Abstract
This study describes the advancements made over the last five years in the development of electrochemical sensors and biosensors for acetaminophen detection. This study reviews the different configurations based on unmodified and chemically modified carbon nanotubes and graphene. The influence of various modifiers on the two types of materials is presented along with their role on the enhancement of the selectivity and sensitivity of (bio)sensors. The review is focused on a comparative description of the applications of carbon-based nanomaterials towards acetaminophen detection and presents the results in a critical manner.
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Affiliation(s)
- Andreea Cernat
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Pasteur St., 400349 Cluj-Napoca, Romania
| | - Mihaela Tertiş
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Pasteur St., 400349 Cluj-Napoca, Romania
| | - Robert Săndulescu
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Pasteur St., 400349 Cluj-Napoca, Romania
| | - Fethi Bedioui
- PSL Research University, Chimie Paris Tech, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France; CNRS, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris UMR 8258, Paris, France; Université Paris Descartes, Unité de Technologies Chimiques et Biologiques pour la Santé, Paris, France; INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé 1022, Paris, France
| | - Alexandru Cristea
- Department of Building Services, Faculty of Building Services, Technical University of Cluj-Napoca, 21 December 1989 Avenue, Cluj-Napoca, Romania
| | - Cecilia Cristea
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Pasteur St., 400349 Cluj-Napoca, Romania.
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8
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Bhakta SA, Evans E, Benavidez TE, Garcia CD. Protein adsorption onto nanomaterials for the development of biosensors and analytical devices: a review. Anal Chim Acta 2015; 872:7-25. [PMID: 25892065 PMCID: PMC4405630 DOI: 10.1016/j.aca.2014.10.031] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/25/2014] [Accepted: 10/21/2014] [Indexed: 12/11/2022]
Abstract
An important consideration for the development of biosensors is the adsorption of the biorecognition element to the surface of a substrate. As the first step in the immobilization process, adsorption affects most immobilization routes and much attention is given into the research of this process to maximize the overall activity of the biosensor. The use of nanomaterials, specifically nanoparticles and nanostructured films, offers advantageous properties that can be fine-tuned to maximize interactions with specific proteins to maximize activity, minimize structural changes, and enhance the catalytic step. In the biosensor field, protein-nanomaterial interactions are an emerging trend that span across many disciplines. This review addresses recent publications about the proteins most frequently used, their most relevant characteristics, and the conditions required to adsorb them to nanomaterials. When relevant and available, subsequent analytical figures of merits are discussed for selected biosensors. The general trend amongst the research papers allows concluding that the use of nanomaterials has already provided significant improvements in the analytical performance of many biosensors and that this research field will continue to grow.
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Affiliation(s)
- Samir A Bhakta
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Elizabeth Evans
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Tomás E Benavidez
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Carlos D Garcia
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.
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9
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Bhakta SA, Benavidez TE, Garcia CD. Immobilization of glucose oxidase to nanostructured films of polystyrene-block-poly(2-vinylpyridine). J Colloid Interface Sci 2014; 430:351-6. [PMID: 24980481 DOI: 10.1016/j.jcis.2014.05.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 05/29/2014] [Accepted: 05/31/2014] [Indexed: 12/31/2022]
Abstract
A critical step for the development of biosensors is the immobilization of the biorecognition element to the surface of a substrate. Among other materials that can be used as substrates, block copolymers have the untapped potential to provide significant advantages for the immobilization of proteins. To explore such possibility, this manuscript describes the fabrication and characterization of thin-films of polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP). These films were then used to investigate the immobilization of glucose oxidase, a model enzyme for the development of biosensors. According to the results presented, the nanoporous films can provide significant increases in surface area of the substrate and the immobilization of larger amounts of active enzyme. The characterization of the substrate-enzyme interface discussed in the manuscript aims to provide critical information about relationship between the surface (material, geometry, and density of pores), the protein structure, and the immobilization conditions (pH, and protein concentration) required to improve the catalytic activity and stability of the enzymes. A maximum normalized activity of 3300±700 U m(-2) was achieved for the nanoporous film of PS-b-P2VP.
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Affiliation(s)
- Samir A Bhakta
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX 78249, USA
| | - Tomas E Benavidez
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX 78249, USA
| | - Carlos D Garcia
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX 78249, USA.
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10
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Benavidez TE, Garcia CD. Spectroscopic and electrochemical characterization of nanostructured optically transparent carbon electrodes. Electrophoresis 2013; 34:1998-2006. [PMID: 23595607 PMCID: PMC3860877 DOI: 10.1002/elps.201300022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 02/15/2013] [Accepted: 03/03/2013] [Indexed: 12/15/2022]
Abstract
The present paper describes the results related to the optical and electrochemical characterization of thin carbon films fabricated by spin coating and pyrolysis of AZ P4330-RS photoresist. The goal of this paper is to provide comprehensive information allowing for the rational selection of the conditions to fabricate optically transparent carbon electrodes (OTCE) with specific electrooptical properties. According to our results, these electrodes could be appropriate choices as electrochemical transducers to monitor electrophoretic separations. At the core of this manuscript is the development and critical evaluation of a new optical model to calculate the thickness of the OTCE by variable angle spectroscopic ellipsometry. Such data were complemented with topography and roughness (obtained by atomic force microscopy), electrochemical properties (obtained by cyclic voltammetry), electrical properties (obtained by electrochemical impedance spectroscopy), and structural composition (obtained by Raman spectroscopy). Although the described OTCE were used as substrates to investigate the effect of electrode potential on the real-time adsorption of proteins by ellipsometry, these results could enable the development of other biosensors that can be then integrated into various CE platforms.
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Affiliation(s)
- Tomas E. Benavidez
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX 78249, USA
| | - Carlos D. Garcia
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX 78249, USA
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11
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Alharthi SA, Benavidez TE, Garcia CD. Ultrathin optically transparent carbon electrodes produced from layers of adsorbed proteins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:3320-3327. [PMID: 23421732 PMCID: PMC3601777 DOI: 10.1021/la3049136] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This work describes a simple, versatile, and inexpensive procedure to prepare optically transparent carbon electrodes, using proteins as precursors. Upon adsorption, the protein-coated substrates were pyrolyzed under reductive conditions (5% H2) to form ultrathin, conductive electrodes. Because proteins spontaneously adsorb to interfaces forming uniform layers, the proposed method does not require a precise control of the preparation conditions, specialized instrumentation, or expensive precursors. The resulting electrodes were characterized by a combination of electrochemical, optical, and spectroscopic means. As a proof-of-concept, the optically transparent electrodes were also used as substrate for the development of an electrochemical glucose biosensor. The proposed films represent a convenient alternative to more sophisticated, and less available, carbon-based nanomaterials. Furthermore, these films could be formed on a variety of substrates, without classical limitations of size or shape.
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Affiliation(s)
| | | | - Carlos D. Garcia
- To whom correspondence should be addressed. One UTSA Circle, San Antonio, TX 78249, USA. Ph: (210) 458-5774, Fax: (210) 458-7428,
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12
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Ates ES, Kucukyildiz S, Unalan HE. Zinc oxide nanowire photodetectors with single-walled carbon nanotube thin-film electrodes. ACS APPLIED MATERIALS & INTERFACES 2012; 4:5142-5146. [PMID: 22950714 DOI: 10.1021/am301402y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, transparent and flexible zinc oxide (ZnO) nanowire ultraviolet (UV) photodetectors prepared via a solution-based method in which single-walled carbon nanotube (SWNT) thin films were used as transparent electrodes are reported. The photoresponse current was found to be in proportion with the ZnO nanowire density, and the nanowire density could be tuned to increase the photocurrent by a factor of 300. The decay time for the fabricated photodetectors was found to be as low as 16 s. This study suggests the possibility of fabricating inexpensive, visible-blind UV photodetectors via solution-based methods.
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Affiliation(s)
- Elif Selen Ates
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara 06800, Turkey
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13
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Computational, electrochemical, and spectroscopic, studies of acetycholinesterase covalently attached to carbon nanotubes. Colloids Surf B Biointerfaces 2012; 103:624-9. [PMID: 23274156 DOI: 10.1016/j.colsurfb.2012.08.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 08/21/2012] [Accepted: 08/27/2012] [Indexed: 11/22/2022]
Abstract
This manuscript describes results related to the characterization of electrodes modified with a composite of acetylcholinesterase covalently bound to carbon nanotubes (CNT). The characterization was performed by computational methods and complemented by cyclic voltammetry, infrared spectroscopy, and electrochemical impedance spectroscopy. In-silico simulations enabled the identification of the binding site and the calculation of the interaction energy. Besides complementing the computational studies, experimental results obtained by cyclic voltammetry showed that the addition of CNT to the surface of electrodes yielded significant increases in effective area and greatly facilitated the electron transfer reactions. These results are also in agreement with impedance spectroscopy data, which indicated a high apparent rate constant, even after the immobilization of the enzyme. These results lend new information about the physical and chemical properties of biointerfaces at the molecular level, specifically about the mechanism and consequences of the interaction of a model enzyme with CNT.
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Abstract
Recent developments in materials, surface modifications, separation schemes, detection systems and associated instrumentation have allowed significant advances in the performance of lab-on-a-chip devices. These devices, also referred to as micro total analysis systems (µTAS), offer great versatility, high throughput, short analysis time, low cost and, more importantly, performance that is comparable to standard bench-top instrumentation. To date, µTAS have demonstrated advantages in a significant number of fields including biochemical, pharmaceutical, military and environmental. Perhaps most importantly, µTAS represent excellent platforms to introduce students to microfabrication and nanotechnology, bridging chemistry with other fields, such as engineering and biology, enabling the integration of various skills and curricular concepts. Considering the advantages of the technology and the potential impact to society, our research program aims to address the need for simpler, more affordable, faster and portable devices to measure biologically active compounds. Specifically, the program is focused on the development and characterization of a series of novel strategies towards the realization of integrated microanalytical devices. One key aspect of our research projects is that the developed analytical strategies must be compatible with each other; therefore, enabling their use in integrated devices. The program combines spectroscopy, surface chemistry, capillary electrophoresis, electrochemical detection and nanomaterials. This article discusses some of the most recent results obtained in two main areas of emphasis: capillary electrophoresis, microchip-capillary electrophoresis, electrochemical detection and interaction of proteins with nanomaterials.
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Affiliation(s)
- Carlos D Garcia
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.
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Nejadnik MR, Deepak FL, Garcia CD. Adsorption of Glucose Oxidase to 3-D Scaffolds of Carbon Nanotubes: Analytical Applications. ELECTROANAL 2011; 23:1462-1469. [PMID: 22735356 PMCID: PMC3380380 DOI: 10.1002/elan.201000758] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Accepted: 02/07/2011] [Indexed: 01/21/2023]
Abstract
This study is the first to focus on the potential use of carbon nanotube (CNT) scaffolds as enzyme immobilization substrates for analytical purposes. Besides all the well-known advantages of CNT, three-dimensional scaffolds can significantly increase the amount of enzymes adsorbed per unit area, preserve the catalytic activity of the adsorbed molecules, and allow effective exposure to substrates present in the adjacent medium. Additionally, our results indicate that the sensitivity of analytical probes based on enzyme-loaded CNT scaffolds is proportional to the thickness of the scaffold providing 3-fold sensitivity improvements with respect to the control surfaces.
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Affiliation(s)
- M. Reza Nejadnik
- Department of Chemistry University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249 USA
| | - Francis L. Deepak
- Department of Physics and Astronomy University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249 USA
| | - Carlos D. Garcia
- Department of Chemistry University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249 USA
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16
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Scida K, Stege PW, Haby G, Messina GA, García CD. Recent applications of carbon-based nanomaterials in analytical chemistry: critical review. Anal Chim Acta 2011; 691:6-17. [PMID: 21458626 PMCID: PMC3088727 DOI: 10.1016/j.aca.2011.02.025] [Citation(s) in RCA: 223] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 01/20/2011] [Accepted: 02/09/2011] [Indexed: 11/19/2022]
Abstract
The objective of this review is to provide a broad overview of the advantages and limitations of carbon-based nanomaterials with respect to analytical chemistry. Aiming to illustrate the impact of nanomaterials on the development of novel analytical applications, developments reported in the 2005-2010 period have been included and divided into sample preparation, separation, and detection. Within each section, fullerenes, carbon nanotubes, graphene, and composite materials will be addressed specifically. Although only briefly discussed, included is a section highlighting nanomaterials with interesting catalytic properties that can be used in the design of future devices for analytical chemistry.
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Affiliation(s)
- Karen Scida
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, United States of America
| | - Patricia W. Stege
- INQUISAL, Department of Analytical Chemistry, National University of San Luis – CONICET, Chacabuco y Pedernera. D5700BWS. San Luis, Argentina
| | - Gabrielle Haby
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, United States of America
| | - Germán A. Messina
- INQUISAL, Department of Analytical Chemistry, National University of San Luis – CONICET, Chacabuco y Pedernera. D5700BWS. San Luis, Argentina
| | - Carlos D. García
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249, United States of America
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17
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Chumbimuni-Torres KY, Coronado RE, Mfuh AM, Castro-Guerrero C, Silva MF, Negrete GR, Bizios R, Garcia CD. Adsorption of Proteins to Thin-Films of PDMS and Its Effect on the Adhesion of Human Endothelial Cells. RSC Adv 2011; 1:706-714. [PMID: 25068038 DOI: 10.1039/c1ra00198a] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper describes a simple and inexpensive procedure to produce thin-films of poly(dimethylsiloxane). Such films were characterized by a variety of techniques (ellipsometry, nuclear magnetic resonance, atomic force microscopy, and goniometry) and used to investigate the adsorption kinetics of three model proteins (fibrinogen, collagen type-I, and bovine serum albumin) under different conditions. The information collected from the protein adsorption studies was then used to investigate the adhesion of human dermal microvascular endothelial cells. The results of these studies suggest that these films can be used to model the surface properties of microdevices fabricated with commercial PDMS. Moreover, the paper provides guidelines to efficiently attach cells in BioMEMS devices.
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Affiliation(s)
| | - Ramon E Coronado
- Department of Biomedical Engineering, The University of Texas at San Antonio
| | - Adelphe M Mfuh
- Department of Chemistry, The University of Texas at San Antonio
| | | | - Maria Fernanda Silva
- School of Agronomic Sciences - IBAM-CONICET, National University of Cuyo, Mendoza, Argentina
| | | | - Rena Bizios
- Department of Biomedical Engineering, The University of Texas at San Antonio
| | - Carlos D Garcia
- Department of Chemistry, The University of Texas at San Antonio
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