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Singh M, Gautam AK, Faraz M, Khare N. Polyaniline/graphitic carbon nitride/reduced graphene oxide ternary nanocomposite film for flexible thermoelectric application. NANOTECHNOLOGY 2024; 35:495403. [PMID: 39284319 DOI: 10.1088/1361-6528/ad7b3e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Accepted: 09/16/2024] [Indexed: 09/20/2024]
Abstract
The present study outlines the preparation of a ternary nanocomposite film comprising of polyaniline doped with camphor sulfonic acid (PANI), reduced graphene oxide (rGO), and graphitic carbon nitride (g-C3N4), and delves into its thermoelectric performance. PANI is known to possess high electrical conductivity (σ) and poor thermal conductivity (κ). However, its potential for thermoelectric applications is constrained by the low value of the Seebeck coefficient (S). The incorporation of g-C3N4in PANI has been demonstrated to result in an improvement of the Seebeck coefficient. Furthermore, the addition of rGO to the PANI/g-C3N4sample counteracts the decrease in electrical conductivity. The PANI/g-C3N4/rGO ternary nanocomposite film exhibits an enhanced Seebeck coefficient of ∼2.2 times when compared to the PANI sample. The Seebeck coefficient of the PANI/g-C3N4/rGO nanocomposite is enhanced by the energy filtering effect that occurs at the interfaces between g-C3N4/PANI and PANI/rGO. Theπ-πinteraction between the PANI chains and rGO is responsible for the increased electrical conductivity resulting from the well-ordered polymer chain arrangement on the g-C3N4and rGO surfaces. The ternary nanocomposite sample demonstrated a synergistic improvement in both electrical conductivity and Seebeck coefficient, resulting in a remarkable ∼4.6-fold increment in power factor and an ∼4.3-fold enhancement in the figure of merit (zT), as compared to the pristine PANI film.
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Affiliation(s)
- Manoj Singh
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Amish Kumar Gautam
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Mohd Faraz
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Neeraj Khare
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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de Souza Carolino A, Freitas XMS, Macalia CMA, Soares JC, Soares AC, da Costa Pinto C, Barbosa ARC, de Araújo Bezerra J, Campelo PH, da Silva Paula MM, Lalwani PJ, Inada NM, Țãlu Ș, Malheiro A, Sanches EA. Virus adsorbent systems based on Amazon holocellulose and nanomaterials. Microsc Res Tech 2024; 87:1933-1954. [PMID: 38563156 DOI: 10.1002/jemt.24566] [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: 10/03/2023] [Revised: 03/07/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
The environment preservation has been an important motivation to find alternative, functional, and biodegradable materials to replace polluting petrochemicals. The production of nonbiodegradable face masks increased the concentration of microplastics in the environment, highlighting the need for sustainable alternatives, such as the use of local by-products to create efficient and eco-friendly filtering materials. Furthermore, the use of smart materials can reduce the risk of contagion and virus transmission, especially in the face of possible mutations. The development of novel materials is necessary to ensure less risk of contagion and virus transmission, as well as to preserve the environment. Taking these factors into account, 16 systems were developed with different combinations of precursor materials (holocellulose, polyaniline [ES-PANI], graphene oxide [GO], silver nanoparticles [AgNPs], and activated carbon [AC]). Adsorption tests of the spike protein showed that the systems containing GO and AC were the most efficient in the adsorption process. Similarly, plate tests conducted using the VSV-IN strain cultured in HepG2 cells showed that the system containing all phases showed the greatest reduction in viral titer method. In agreement, the biocompatibility tests showed that the compounds extracted from the systems showed low cytotoxicity or no significant cytotoxic effect in human fibroblasts. As a result, the adsorption tests of the spike protein, viral titration, and biocompatibility tests showed that systems labeled as I and J were the most efficient. In this context, the present research has significantly contributed to the technological development of antiviral systems, with improved properties and increased adsorption efficiency, reducing the viral titer and contributing efficiently to public health. In this way, these alternative materials could be employed in sensors and devices for filtering and sanitization, thus assisting in mitigating the transmission of viruses and bacteria. RESEARCH HIGHLIGHTS: Sixteen virus adsorbent systems were developed with different combinations of precursor materials (holocellulose, polyaniline (ES-PANI), graphene oxide (GO), silver nanoparticles (AgNPs), and activated carbon (AC)). The system that included all of the nanocomposites holocellulose, PANI, GO, AgNPs, and AC showed the greatest reduction in viral titration. The biocompatibility tests revealed that all systems caused only mild or moderate cytotoxicity toward human fibroblasts.
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Affiliation(s)
- Adriano de Souza Carolino
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | | | | | - Juliana Coatrini Soares
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Andrey Coatrini Soares
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Camila da Costa Pinto
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | - Aguyda Rayany Cavalcante Barbosa
- Laboratory of Infectious Diseases and Immunology, Fundação Oswaldo Cruz - Instituto Leônidas e Maria Deane (FIOCRUZ-ILMD), Manaus, AM, Brazil
- Graduate Program in Basic and Applied Immunology (PPGIBA), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | - Jaqueline de Araújo Bezerra
- Analytical Center, Federal Institute of Education, Science and Technology of Amazonas (IFAM), Manaus, AM, Brazil
| | | | | | - Pritesh Jaychand Lalwani
- Laboratory of Infectious Diseases and Immunology, Fundação Oswaldo Cruz - Instituto Leônidas e Maria Deane (FIOCRUZ-ILMD), Manaus, AM, Brazil
- Graduate Program in Basic and Applied Immunology (PPGIBA), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
| | - Natalia Mayumi Inada
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Ștefan Țãlu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Cluj-Napoca, Romania
| | - Adriana Malheiro
- Graduate Program in Basic and Applied Immunology (PPGIBA), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
- Laboratory of Genomics (LABGEN), Hospital Foundation of Hematology and Hemotherapy of Amazonas (HEMOAM), Manaus, AM, Brazil
| | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus, AM, Brazil
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Kiseleva SG, Bondarenko GN, Orlov AV, Muratov DG, Kozlov VV, Vasilev AA, Karpacheva GP. Hybrid Nanocomposites Based on Poly(3,6-dianiline-2,5-dichloro-1,4-benzoquinone): Synthesis, Structure and Properties. Polymers (Basel) 2024; 16:1832. [PMID: 39000686 PMCID: PMC11244527 DOI: 10.3390/polym16131832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/17/2024] Open
Abstract
Hybrid nanocomposites based on poly(3,6-dianiline-2,5-dichloro-1,4-benzoquinone) (PDACB) in salt form and graphene oxide (GO) have been obtained for the first time, and the significant influence of the preparation method on the composition and structure of nanocomposites and their functional properties has been demonstrated. Nanocomposites were prepared in three ways: via ultrasonic mixing of PDACB and GO; via in situ oxidative polymerization of 3,6-dianiline-2,5-dichloro-1,4-benzoquinone (DACB) in the presence of GO; and by heating a suspension of previously prepared PDACB and GO in DMF with the removal of the solvent. The results of the study of the composition, chemical structure, morphology, thermal stability and electrical properties of nanocomposites obtained via various methods are presented. Nanocomposites obtained by mixing the components in an ultrasonic field demonstrated strong intermolecular interactions between PDACB and GO both due to the formation of hydrogen bonds and π-stacking, as well as through electrostatic interactions. Under oxidative polymerization of DACB in the presence of GO, the latter participated in the oxidative process, being partially reduced. At the same time, a PDACB polymer film was formed on the surface of the GO. Prolonged heating for 4 h at 85 °C of a suspension of PDACB and GO in DMF led to the dedoping of PDACB with the transition of the polymer to the base non-conductive form and the reduction of GO. Regardless of the preparation method, all nanocomposites showed an increase in thermal stability compared to PDACB. All nanocomposites were characterized by a hopping mechanism of conductivity. Direct current (dc) conductivity σdc values varied within two orders of magnitude depending on the preparation conditions.
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Affiliation(s)
- Svetlana G. Kiseleva
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky pr., 29, 119991 Moscow, Russia; (G.N.B.); (A.V.O.); (D.G.M.); (V.V.K.); (A.A.V.); (G.P.K.)
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Farina R, Scalese S, Corso D, Capuano GE, Screpis GA, Coniglio MA, Condorelli GG, Libertino S. Chronoamperometric Ammonium Ion Detection in Water via Conductive Polymers and Gold Nanoparticles. Molecules 2024; 29:3028. [PMID: 38998981 PMCID: PMC11243345 DOI: 10.3390/molecules29133028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 06/21/2024] [Accepted: 06/23/2024] [Indexed: 07/14/2024] Open
Abstract
Monitoring of ammonium ion levels in water is essential due to its significant impact on environmental and human health. This work aims to fabricate and characterize sensitive, real-time, low-cost, and portable amperometric sensors for low NH4+ concentrations in water. Two strategies were conducted by cyclic voltammetry (CV): electrodeposition of Au nanoparticles on a commercial polyaniline/C electrode (Au/PANI/C), and CV of electropolymerized polyaniline on a commercial carbon electrode (Au/PANIep/C). Au NPs increase the electrical conductivity of PANI and its ability to transfer charges during electrochemical reactions. The electrode performances were tested in a concentration range from 0.35 µM to 7 µM in NH4+ solution. The results show that the Au/PANI/C electrode performs well for high NH4+ concentrations (0.34 µM LoD) and worsens for low NH4+ concentrations (0.01 µM LoD). A reverse performance occurs for the electrode Au/PANIep/C, with a 0.03 µM LoD at low NH4+ concentration and 0.07 µM LoD at high NH4+ concentration. The electrodes exhibit a good reproducibility, with a maximum RSD of 3.68% for Au/PANI/C and 5.94% for Au/PANIep/C. In addition, the results of the repeatability tests show that the electrochemical reaction of sensing is fully reversible, leaving the electrode ready for a new detection event.
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Affiliation(s)
- Roberta Farina
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi (CNR-IMM), Strada VIII Z.I., 5, 95121 Catania, Italy
- Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Silvia Scalese
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi (CNR-IMM), Strada VIII Z.I., 5, 95121 Catania, Italy
| | - Domenico Corso
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi (CNR-IMM), Strada VIII Z.I., 5, 95121 Catania, Italy
| | - Giuseppe Emanuele Capuano
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi (CNR-IMM), Strada VIII Z.I., 5, 95121 Catania, Italy
| | - Giuseppe Andrea Screpis
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate "G.F. Ingrassia", Università Degli Studi di Catania, Via S. Sofia 87, 95123 Catania, Italy
| | - Maria Anna Coniglio
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi (CNR-IMM), Strada VIII Z.I., 5, 95121 Catania, Italy
- Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate "G.F. Ingrassia", Università Degli Studi di Catania, Via S. Sofia 87, 95123 Catania, Italy
| | - Guglielmo Guido Condorelli
- Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Sebania Libertino
- Consiglio Nazionale delle Ricerche-Istituto per la Microelettronica e Microsistemi (CNR-IMM), Strada VIII Z.I., 5, 95121 Catania, Italy
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Moradi M, Rezaei M, Marashi P, Rainforth WM. Smart Doped Polyaniline Coating for Wireless Anodic Protection of AISI 304 Stainless Steel in a Corrosive Medium Containing Sulfate and Chloride Ions: Electrochemical and DFT Evaluations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13303-13318. [PMID: 38865082 DOI: 10.1021/acs.langmuir.4c01718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Polyaniline (PANI) coatings have the capability of in situ anodic protection of stainless steels (SSs). However, these coatings have a high degradation rate in sulfuric acid. Also, the protection of SSs in a medium contaminated with chloride ions is an unsolved challenge. Therefore, the present work aims to modify the electrodeposited PANI coating with different dopants to find the optimal coating for the anodic protection of 304 SS in chloride-contaminated sulfuric acid. Thus, CH3COO-, HSO4-, NO3-, H2PO4-, and NaSO4- were doped electrochemically in PANI to determine the most effective corrosion depressor. Density functional theory (DF)T calculations determined that the lowest Gibbs free energy (more spontaneous doping) is for HSO4- doping by 24 kcal/mol. The band gap energy is <0.5 eV for the PANI/H2SO4 coating, indicating the very high conductivity of this coating. Monte Carlo simulation revealed that the highest deformation energy is related to PANI/H2SO4 at 1877 kcal/mol (stronger adsorption). Mott-Schottky and energy-dispersive spectroscopy (EDS) results showed that PANI doped with sulfuric acid creates a p-type semiconductor (Ni-rich), while the rest of the dopants lead to the formation of an n-type semiconductor passive film (Fe/Cr-rich). Despite the relatively low corrosion resistance of PANI/H2SO4 in the early days, its resistance improved over time by more than 1 order of magnitude. Therefore, this seems to be a more favorable option for long-term anodic protection. Thus, in this work, the corrosion behavior of the passive film formed at the interface of PANI and SS was comprehensively evaluated.
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Affiliation(s)
- Mobina Moradi
- Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Avenue, P.O. Box 15875-4413, Tehran 15916-34311, Iran
| | - Milad Rezaei
- Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Avenue, P.O. Box 15875-4413, Tehran 15916-34311, Iran
| | - Pirooz Marashi
- Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Avenue, P.O. Box 15875-4413, Tehran 15916-34311, Iran
| | - William Mark Rainforth
- Department of Materials Science and Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
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Jalal NR, Madrakian T, Ahmadi M, Afkhami A, Khalili S, Bahrami M, Roshanaei M. Wireless wearable potentiometric sensor for simultaneous determination of pH, sodium and potassium in human sweat. Sci Rep 2024; 14:11526. [PMID: 38773136 PMCID: PMC11109153 DOI: 10.1038/s41598-024-62236-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/15/2024] [Indexed: 05/23/2024] Open
Abstract
This paper reports on the development of a flexible-wearable potentiometric sensor for real-time monitoring of sodium ion (Na+), potassium ion (K+), and pH in human sweat. Na0.44MnO2, polyaniline, and K2Co[Fe(CN)6] were used as sensing materials for Na+, H+ and K+ monitoring, respectively. The simultaneous potentiometric Na+, K+, and pH sensing were carried out by the developed sensor, which enables signal collection and transmission in real-time to the smartphone via a Wi-Fi access point. Then, the potentiometric responses were evaluated by a designed android application. Na+, K+, and pH sensors illustrated high sensitivity (59.7 ± 0.8 mV/decade for Na+, 57.8 ± 0.9 mV/decade for K+, and 54.7 ± 0.6 mV/pH for pH), excellent stability, and good batch-to-batch reproducibility. The results of on-body experiments demonstrated that the proposed platform is capable of real-time monitoring of the investigated ions.
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Affiliation(s)
- Nahid Rezvani Jalal
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, 6517838695, Iran
| | - Tayyebeh Madrakian
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, 6517838695, Iran.
| | - Mazaher Ahmadi
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, 6517838695, Iran.
| | - Abbas Afkhami
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, 6517838695, Iran
| | - Sina Khalili
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, 6517838695, Iran
| | - Morteza Bahrami
- Department of Computer Engineering, Faculty of Engineering, Bu-Ali Sina University, Hamedan, 6517838695, Iran
| | - Majid Roshanaei
- Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science and Technology, Tehran, 1684613114, Iran
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Zhao H, Liu M, Guo Q. Silicon-based transient electronics: principles, devices and applications. NANOTECHNOLOGY 2024; 35:292002. [PMID: 38599177 DOI: 10.1088/1361-6528/ad3ce1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 04/10/2024] [Indexed: 04/12/2024]
Abstract
Recent advances in materials science, device designs and advanced fabrication technologies have enabled the rapid development of transient electronics, which represents a class of devices or systems that their functionalities and constitutions can be partially/completely degraded via chemical reaction or physical disintegration over a stable operation. Therefore, numerous potentials, including zero/reduced waste electronics, bioresorbable electronic implants, hardware security, and others, are expected. In particular, transient electronics with biocompatible and bioresorbable properties could completely eliminate the secondary retrieval surgical procedure after their in-body operation, thus offering significant potentials for biomedical applications. In terms of material strategies for the manufacturing of transient electronics, silicon nanomembranes (SiNMs) are of great interest because of their good physical/chemical properties, modest mechanical flexibility (depending on their dimensions), robust and outstanding device performances, and state-of-the-art manufacturing technologies. As a result, continuous efforts have been made to develop silicon-based transient electronics, mainly focusing on designing manufacturing strategies, fabricating various devices with different functionalities, investigating degradation or failure mechanisms, and exploring their applications. In this review, we will summarize the recent progresses of silicon-based transient electronics, with an emphasis on the manufacturing of SiNMs, devices, as well as their applications. After a brief introduction, strategies and basics for utilizing SiNMs for transient electronics will be discussed. Then, various silicon-based transient electronic devices with different functionalities are described. After that, several examples regarding on the applications, with an emphasis on the biomedical engineering, of silicon-based transient electronics are presented. Finally, summary and perspectives on transient electronics are exhibited.
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Affiliation(s)
- Haonan Zhao
- School of Integrated Circuits, Shandong University, Jinan 250100, People's Republic of China
| | - Min Liu
- School of Integrated Circuits, Shandong University, Jinan 250100, People's Republic of China
| | - Qinglei Guo
- School of Integrated Circuits, Shandong University, Jinan 250100, People's Republic of China
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Banjar MF, Joynal Abedin FN, Fizal ANS, Muhamad Sarih N, Hossain MS, Osman H, Khalil NA, Ahmad Yahaya AN, Zulkifli M. Synthesis and Characterization of a Novel Nanosized Polyaniline. Polymers (Basel) 2023; 15:4565. [PMID: 38232004 PMCID: PMC10708272 DOI: 10.3390/polym15234565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 01/19/2024] Open
Abstract
Polyaniline (PANI) is a conductive polymer easily converted into a conducting state. However, its limited mechanical properties have generated interest in fabricating PANI composites with other polymeric materials. In this study, a PANI-prevulcanized latex composite film was synthesized and fabricated in two phases following chronological steps. The first phase determined the following optimum parameters for synthesizing nanosized PANI, which were as follows: an initial molar ratio of 1, a stirring speed of 600 rpm, a synthesis temperature of 25 °C, purification via filtration, and washing using dopant acid, acetone, and distilled water. The use of a nonionic surfactant, Triton X-100, at 0.1% concentration favored PANI formation in a smaller particle size of approximately 600 nm and good dispersibility over seven days of observation compared to the use of anionic sodium dodecyl sulfate. Ultraviolet-visible spectroscopy (UV-Vis) showed that the PANI synthesized using a surfactant was in the emeraldine base form, as the washing process tends to decrease the doping level in the PANI backbone. Our scanning electron microscopy analysis showed that the optimized synthesis parameters produced colloidal PANI with an average particle size of 695 nm. This higher aspect ratio explained the higher conductivity of nanosized PANI compared to micron-sized PANI. Following the chronological steps to determine the optimal parameters produced a nanosized PANI powder. The nanosized PANI had higher conductivity than the micron-sized PANI because of its higher aspect ratio. When PANI is synthesized in smaller particle sizes, it has higher conductivity. Atomic force microscopy analysis showed that the current flow is higher across a 5 µm2 scanned area of nanosized PANI because it has a larger surface area. Thus, more sites for the current to flow through were present on the nanosized PANI particles.
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Affiliation(s)
- Mohd Faizar Banjar
- Malaysian Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur (UniKL), Alor Gajah 78000, Melaka, Malaysia; (M.F.B.); (F.N.J.A.); (N.A.K.)
| | - Fatin Najwa Joynal Abedin
- Malaysian Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur (UniKL), Alor Gajah 78000, Melaka, Malaysia; (M.F.B.); (F.N.J.A.); (N.A.K.)
| | - Ahmad Noor Syimir Fizal
- Centre for Sustainability of Ecosystem & Earth Resources (Pusat ALAM), Universiti Malaysia Pahang, Lebuh Persiaran Tun Khalil Yaakob, Gambang 26300, Pahang, Malaysia;
| | | | - Md. Sohrab Hossain
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Fundamental and Applied Sciences Department, Universiti Teknologi Petronas (UTP), Seri Iskandar 32610, Perak, Malaysia;
| | - Hakimah Osman
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia;
| | - Nor Afifah Khalil
- Malaysian Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur (UniKL), Alor Gajah 78000, Melaka, Malaysia; (M.F.B.); (F.N.J.A.); (N.A.K.)
- Polymer Science Program, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat-Yai 90110, Songkla, Thailand
| | - Ahmad Naim Ahmad Yahaya
- Green Chemistry and Sustainability Cluster, Branch Campus, Malaysian Institute of Chemical and Bio-Engineering Technology, Universiti Kuala Lumpur (UniKL), Taboh Naning, Alor Gajah 78000, Melaka, Malaysia;
| | - Muzafar Zulkifli
- Green Chemistry and Sustainability Cluster, Branch Campus, Malaysian Institute of Chemical and Bio-Engineering Technology, Universiti Kuala Lumpur (UniKL), Taboh Naning, Alor Gajah 78000, Melaka, Malaysia;
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Badi N, Roy AS, Al-Aoh HA, Motawea MS, Alghamdi SA, M Alsharari A, Albaqami AS, Ignatiev A. Enhanced and Proficient Soft Template Array of Polyaniline-TiO 2 Nanocomposites Fibers Prepared Using Anionic Surfactant for Fuel Cell Hydrogen Storage. Polymers (Basel) 2023; 15:4186. [PMID: 37896429 PMCID: PMC10610601 DOI: 10.3390/polym15204186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
Porous TiO2-doped polyaniline and polyaniline nanocomposite fibers prepared by the in situ polymerization technique using anionic surfactant in an ice bath were studied. The prepared nanocomposites were characterized by FTIR spectroscopy and XRD patterns for structural analysis. The surface morphology of the polyaniline and its nanocomposites was examined using SEM images. DC conductivity shows the three levels of conductivity inherent in a semiconductor. Among the nanocomposites, the maximum DC conductivity is 5.6 S/cm for 3 wt.% polyaniline-TiO2 nanocomposite. Cyclic voltammetry shows the properties of PANI due to the redox peaks of 0.93 V and 0.24 V. Both peaks are due to the redox transition of PANI from the semiconductor to the conductive state. The hydrogen absorption capacity is approximately 4.5 wt.%, but at 60 °C the capacity doubles to approximately 7.3 wt.%. Conversely, 3 wt.% PANI-TiO2 nanocomposites have a high absorption capacity of 10.4 wt.% compared to other nanocomposites. An overall desorption capacity of 10.4 wt.% reduced to 96% was found for 3 wt.% TiO2-doped PANI nanocomposites.
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Affiliation(s)
- Nacer Badi
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
- Renewable Energy and Environmental Technologies Research Center, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Aashis S Roy
- Department of Chemistry, S.S. Tegnoor Degree College, Gubbi Colony, Kalaburagi 585105, Karnataka, India
| | - Hatem A Al-Aoh
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Mohamed S Motawea
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Saleh A Alghamdi
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Abdulrhman M Alsharari
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Abdulrahman S Albaqami
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Alex Ignatiev
- Department of Physics, University of Houston, Houston, TX 77204-5004, USA
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Zhang Y, Lee G, Li S, Hu Z, Zhao K, Rogers JA. Advances in Bioresorbable Materials and Electronics. Chem Rev 2023; 123:11722-11773. [PMID: 37729090 DOI: 10.1021/acs.chemrev.3c00408] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Transient electronic systems represent an emerging class of technology that is defined by an ability to fully or partially dissolve, disintegrate, or otherwise disappear at controlled rates or triggered times through engineered chemical or physical processes after a required period of operation. This review highlights recent advances in materials chemistry that serve as the foundations for a subclass of transient electronics, bioresorbable electronics, that is characterized by an ability to resorb (or, equivalently, to absorb) in a biological environment. The primary use cases are in systems designed to insert into the human body, to provide sensing and/or therapeutic functions for timeframes aligned with natural biological processes. Mechanisms of bioresorption then harmlessly eliminate the devices, and their associated load on and risk to the patient, without the need of secondary removal surgeries. The core content focuses on the chemistry of the enabling electronic materials, spanning organic and inorganic compounds to hybrids and composites, along with their mechanisms of chemical reaction in biological environments. Following discussions highlight the use of these materials in bioresorbable electronic components, sensors, power supplies, and in integrated diagnostic and therapeutic systems formed using specialized methods for fabrication and assembly. A concluding section summarizes opportunities for future research.
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Affiliation(s)
- Yamin Zhang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, Illinois 60208, United States
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois 60208, United States
| | - Geumbee Lee
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, Illinois 60208, United States
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois 60208, United States
| | - Shuo Li
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, Illinois 60208, United States
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois 60208, United States
| | - Ziying Hu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, Illinois 60208, United States
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois 60208, United States
| | - Kaiyu Zhao
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - John A Rogers
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, Illinois 60208, United States
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Mechanical Engineering, Biomedical Engineering, Chemistry, Electrical Engineering and Computer Science, Northwestern University, Evanston, Illinois 60208, United States
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January JL, Tshobeni ZZ, Ngema NPP, Jijana AN, Iwuoha EI, Mulaudzi T, Douman SF, Ajayi RF. Novel Cytochrome P450-3A4 Enzymatic Nanobiosensor for Lapatinib (a Breast Cancer Drug) Developed on a Poly(anilino-co-4-aminobenzoic Acid-Green-Synthesised Indium Nanoparticle) Platform. BIOSENSORS 2023; 13:897. [PMID: 37754131 PMCID: PMC10527071 DOI: 10.3390/bios13090897] [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: 07/27/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023]
Abstract
Breast cancer (BC) is one of the most common types of cancer disease worldwide and it accounts for thousands of deaths annually. Lapatinib is among the preferred drugs for the treatment of breast cancer. Possible drug toxicity effects of lapatinib can be controlled by real-time determination of the appropriate dose for a patient at the point of care. In this study, a novel highly sensitive polymeric nanobiosensor for lapatinib is presented. A composite of poly(anilino-co-4-aminobenzoic acid) co-polymer {poly(ANI-co-4-ABA)} and coffee extract-based green-synthesized indium nanoparticles (InNPs) was used to develop the sensor platform on a screen-printed carbon electrode (SPCE), i.e., SPCE||poly(ANI-co-4-ABA-InNPs). Cytochrome P450-3A4 (CYP3A4) enzyme and polyethylene glycol (PEG) were incorporated on the modified platform to produce the SPCE||poly(ANI-co-4-ABA-InNPs)|CYP3A4|PEG lapatinib nanobiosensor. Experiments for the determination of the electrochemical response characteristics of the nanobiosensor were performed with cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The nanobiosensor calibration for 0-100 ng/mL lapatinib was linear and gave limit of detection (LOD) values of 13.21 ng/mL lapatinib and 18.6 ng/mL lapatinib in physiological buffer and human serum, respectively. The LOD values are much lower than the peak plasma concentration (Cmax) of lapatinib (2.43 µg/mL), which is attained 4 h after the administration of a daily dose of 1250 mg lapatinib. The electrochemical nanobiosensor also exhibited excellent anti-interference performance and stability.
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Affiliation(s)
- Jaymi Leigh January
- SensorLab (UWC Sensor Laboratories), University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa
| | - Ziyanda Zamaswazi Tshobeni
- SensorLab (UWC Sensor Laboratories), University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa
| | - Nokwanda Precious Pearl Ngema
- SensorLab (UWC Sensor Laboratories), University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa
| | - Abongile Nwabisa Jijana
- Nanotechnology Innovation Centre, Advanced Materials Division, Mintek, Private Bag X3015, Randburg, Johannesburg 2125, South Africa
| | - Emmanuel Iheanyichukwu Iwuoha
- SensorLab (UWC Sensor Laboratories), University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa
| | - Takalani Mulaudzi
- Department of Biotechnology, University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa
| | - Samantha Fiona Douman
- Department of Chemistry, University of Cape Town, Private Bag X3, Rondebosch, Cape Town 7701, South Africa
| | - Rachel Fanelwa Ajayi
- SensorLab (UWC Sensor Laboratories), University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa
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12
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Turazzi FC, Morés L, Carasek E, Barra GMDO. Polyaniline-silica doped with oxalic acid as a novel extractor phase in thin film solid-phase microextraction for determination of hormones in urine. J Sep Sci 2023; 46:e2300280. [PMID: 37400375 DOI: 10.1002/jssc.202300280] [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: 04/24/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 07/05/2023]
Abstract
In this study, different polyanilines were synthesized and evaluated for the determination of three hormones, including 17-β-estradiol, 17-α-ethinylestradiol, and estrone, in urine using a novel methodology based on thin film solid-phase microextraction technique, employing the sampling well plate system. The extractor phases, designated as polyaniline doped with hydrochloric acid, polyaniline doped with oxalic acid, polyaniline-silica doped with hydrochloric acid, and polyaniline-silica doped with oxalic acid, were characterized by electrical conductivity measurements, scanning electron microscopy, and Fourier transform infrared spectroscopy. The optimized extraction conditions were composed of 1.5 mL of urine and pH adjusted to 10, with no need to dilute sample and the desorption step, 300 μL of acetonitrile was used. The calibration curves were performed in the sample matrix, with detection and quantification limits ranged from 0.30 to 3.03 μg L-1 and from 1.0 to 10.0 μg L-1 , respectively, with r ≥ 0.9969. The relative recoveries ranged from 71% to 115%, and intraday precision showed values ≤12% and interday ≤20%. The applicability of the method was successfully evaluated, and six urine samples from female volunteers were analyzed. The analytes were not detected or were below the limits of quantification in these samples.
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Affiliation(s)
| | - Lucas Morés
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Eduardo Carasek
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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13
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Zhang A, Loh KY, Kadur CS, Michalek L, Dou J, Ramakrishnan C, Bao Z, Deisseroth K. Genetically targeted chemical assembly of polymers specifically localized extracellularly to surface membranes of living neurons. SCIENCE ADVANCES 2023; 9:eadi1870. [PMID: 37556541 PMCID: PMC10411876 DOI: 10.1126/sciadv.adi1870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 07/05/2023] [Indexed: 08/11/2023]
Abstract
Multicellular biological systems, particularly living neural networks, exhibit highly complex organization properties that pose difficulties for building cell-specific biocompatible interfaces. We previously developed an approach to genetically program cells to assemble structures that modify electrical properties of neurons in situ, opening up the possibility of building minimally invasive cell-specific structures and interfaces. However, the efficiency and biocompatibility of this approach were challenged by limited membrane targeting of the constructed materials. Here, we design a method for highly localized expression of enzymes targeted to the plasma membrane of primary neurons, with minimal intracellular retention. Next, we show that polymers synthesized in situ by this approach form dense extracellular clusters selectively on the targeted cell membrane and that neurons remain viable after polymerization. Last, we show generalizability of this method across a range of design strategies. This platform can be readily extended to incorporate a broad diversity of materials onto specific cell membranes within tissues and may further enable next-generation biological interfaces.
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Affiliation(s)
- Anqi Zhang
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Kang Yong Loh
- Department of Chemistry, Stanford Chemistry, Engineering and Medicine for Human Health (ChEM-H), Stanford University, Stanford, CA 94305, USA
| | - Chandan S. Kadur
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Lukas Michalek
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Jiayi Dou
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Charu Ramakrishnan
- CNC Program, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Karl Deisseroth
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
- CNC Program, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
- Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA
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14
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Al-Aoh HA, Badi N, Roy AS, Alsharari AM, Abd El Wanees S, Albaqami A, Ignatiev A. Preparation of Anionic Surfactant-Based One-Dimensional Nanostructured Polyaniline Fibers for Hydrogen Storage Applications. Polymers (Basel) 2023; 15:polym15071658. [PMID: 37050269 PMCID: PMC10096723 DOI: 10.3390/polym15071658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/18/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Polyaniline fibers were prepared in the presence of anionic surfactant in an ice medium to nucleate in one dimension and were compared to bulk polyaniline prepared at an optimum temperature. Fourier-transform infrared spectroscopy (FTIR) and X-ray powder diffraction (XRD) were used to investigate the structural analysis of the prepared samples. A conductivity study reveals that polyaniline fibers have high conductivity compared to bulk polyaniline. Hydrogen storage measurements confirm that the polyaniline fibers adsorbed approximately 86% of the total actual capacity of 8–8.5 wt% in less than 9 min, and desorption occurs at a lower temperature, releasing approximately 1.5 wt% of the hydrogen gases when the pressure is reduced further to 1 bar.
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Affiliation(s)
- Hatem A. Al-Aoh
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Nacer Badi
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
- Renewable Energy & Energy Efficiency Center, University of Tabuk, Tabuk 71491, Saudi Arabia
- Correspondence:
| | - Aashis S. Roy
- Department of Chemistry, S. S. Tegnoor Degree College, Kalaburagi 585105, India
| | | | | | - Abdulrahman Albaqami
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Alex Ignatiev
- Department of Physics, University of Houston, Houston, TX 77204, USA
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15
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Etman A, Ibrahim A, Darwish F, Qasim K. A 10 years-developmental study on conducting polymers composites for supercapacitors electrodes: a review for extensive data interpretation. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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16
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Kumar Ben S, Gupta S, Kumar Raj K, Chandra V. Adsorption of Malachite Green from Polyaniline Facilitated Cobalt Phosphate Nanocomposite from Aqueous Solution. Chem Phys Lett 2023. [DOI: 10.1016/j.cplett.2023.140469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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17
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Ko Ko MKH, Yeap SP, Abu Bakar AH. On shape-induced interfacial interactions in graphene/polyaniline composite produced through in situ polymerization approach. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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18
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PET/Graphene Nanocomposite Fibers Obtained by Dry-Jet Wet-Spinning for Conductive Textiles. Polymers (Basel) 2023; 15:polym15051245. [PMID: 36904485 PMCID: PMC10007137 DOI: 10.3390/polym15051245] [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: 11/29/2022] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
The combination of polyethylene terephthalate (PET), one of the most used polymers in the textile industry, with graphene, one of the most outstanding conductive materials in recent years, represents a promising strategy for the preparation of conductive textiles. This study focuses on the preparation of mechanically stable and conductive polymer textiles and describes the preparation of PET/graphene fibers by the dry-jet wet-spinning method from nanocomposite solutions in trifluoroacetic acid. Nanoindentation results show that the addition of a small amount of graphene (2 wt.%) to the glassy PET fibers produces a significant modulus and hardness enhancement (≈10%) that can be partly attributed to the intrinsic mechanical properties of graphene but also to the promotion of crystallinity. Higher graphene loadings up to 5 wt.% are found to produce additional mechanical improvements up to ≈20% that can be merely attributed to the superior properties of the filler. Moreover, the nanocomposite fibers display an electrical conductivity percolation threshold over 2 wt.% approaching ≈0.2 S/cm for the largest graphene loading. Finally, bending tests on the nanocomposite fibers show that the good electrical conductivity can be preserved under cyclic mechanical loading.
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19
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Siva T, Kandhasamy K, Vaduganathan K, Sathiyanarayanan S, Ramadoss A. Electrosynthesis of Silica Reservoir Incorporated Dual Stimuli Responsive Conducting Polymer-Based Self-Healing Coatings. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Tamilvanan Siva
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamilnadu, India
- School for Advanced Research in Petrochemicals, Laboratory for Advanced Research in Polymeric Materials, Central Institute of Petrochemicals Engineering & Technology (CIPET), Bhubaneswar751024, Odisha, India
| | - Kamaraj Kandhasamy
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamilnadu, India
| | - Karpakam Vaduganathan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamilnadu, India
| | - Sadagopan Sathiyanarayanan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamilnadu, India
| | - Ananthakumar Ramadoss
- School for Advanced Research in Petrochemicals (SARP): Advanced Research School for Technology & Product Simulation (ARSTPS), Central Institute of Petrochemicals Engineering & Technology (CIPET), T.V.K. Industrial Estate, Chennai 600032, India
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20
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Wang D, Mao X, Liang Y, Cai Y, Tu T, Zhang S, Li T, Fang L, Zhou Y, Wang Z, Jiang Y, Ye X, Liang B. Multi-Parameter Detection of Urine Based on Electropolymerized PANI: PSS/AuNPs/SPCE. BIOSENSORS 2023; 13:272. [PMID: 36832037 PMCID: PMC9954737 DOI: 10.3390/bios13020272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/09/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Urine analysis is widely used in clinical practice to indicate human heathy status and is important for diagnosing chronic kidney disease (CKD). Ammonium ions (NH4+), urea, and creatinine metabolites are main clinical indicators in urine analysis of CKD patients. In this paper, NH4+ selective electrodes were prepared using electropolymerized polyaniline-polystyrene sulfonate (PANI: PSS), and urea- and creatinine-sensing electrodes were prepared by modifying urease and creatinine deiminase, respectively. First, PANI: PSS was modified on the surface of an AuNPs-modified screen-printed electrode, as a NH4+-sensitive film. The experimental results showed that the detection range of the NH4+ selective electrode was 0.5~40 mM, and the sensitivity reached 192.6 mA M-1 cm-2 with good selectivity, consistency, and stability. Based on the NH4+-sensitive film, urease and creatinine deaminase were modified by enzyme immobilization technology to achieve urea and creatinine detection, respectively. Finally, we further integrated NH4+, urea, and creatinine electrodes into a paper-based device and tested real human urine samples. In summary, this multi-parameter urine testing device offers the potential for point-of-care testing of urine and benefits the efficient chronic kidney disease management.
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Affiliation(s)
- Dong Wang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Xiyu Mao
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Yitao Liang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Yu Cai
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Tingting Tu
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Shanshan Zhang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Tianyu Li
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Lu Fang
- College of Automation, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Yue Zhou
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Zhaoyang Wang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Yu Jiang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Xuesong Ye
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Bo Liang
- Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China
- Binjiang Institute of Zhejiang University, Hangzhou 310053, China
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21
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Synthesis and characterization of cotton candy-PANI: Enhanced supercapacitance properties. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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22
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Ryu J, Park S, Hong D, Shin S. Intertwining porous silicon with conducting polymer for high-efficiency stable Li-ion battery anodes. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1227-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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23
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Head-to-Tail and Head-to-Head Molecular Chains of Poly(p-Anisidine): Combined Experimental and Theoretical Evaluation. Molecules 2022; 27:molecules27196326. [PMID: 36234863 PMCID: PMC9571860 DOI: 10.3390/molecules27196326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 12/02/2022] Open
Abstract
Poly(p-anisidine) (PPA) is a polyaniline derivative presenting a methoxy (–OCH3) group at the para position of the phenyl ring. Considering the important role of conjugated polymers in novel technological applications, a systematic, combined experimental and theoretical investigation was performed to obtain more insight into the crystallization process of PPA. Conventional oxidative polymerization of p-anisidine monomer was based on a central composite rotational design (CCRD). The effects of the concentration of the monomer, ammonium persulfate (APS), and HCl on the percentage of crystallinity were considered. Several experimental techniques such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), multifractal analysis, Nuclear Magnetic Resonance (13C NMR), Fourier-transform Infrared spectroscopy (FTIR), and complex impedance spectroscopy analysis, in addition to Density Functional Theory (DFT), were employed to perform a systematic investigation of PPA. The experimental treatments resulted in different crystal structures with a percentage of crystallinity ranging from (29.2 ± 0.6)% (PPA1HT) to (55.1 ± 0.2)% (PPA16HT-HH). A broad halo in the PPA16HT-HH pattern from 2θ = 10.0–30.0° suggested a reduced crystallinity. Needle and globular-particle morphologies were observed in both samples; the needle morphology might have been related to the crystalline contribution. A multifractal analysis showed that the PPA surface became more complex when the crystallinity was reduced. The proposed molecular structures of PPA were supported by the high-resolution 13C NMR results, allowing us to access the percentage of head-to-tail (HT) and head-to-head (HH) molecular structures. When comparing the calculated and experimental FTIR spectra, the most pronounced changes were observed in ν(C–H), ν(N–H), ν(C–O), and ν(C–N–C) due to the influence of counterions on the polymer backbone as well as the different mechanisms of polymerization. Finally, a significant difference in the electrical conductivity was observed in the range of 1.00 × 10−9 S.cm−1 and 3.90 × 10−14 S.cm−1, respectively, for PPA1HT and PPA16HT-HH.
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PANI–WO3·2H2O Nanocomposite: Phase Interaction and Evaluation of Electronic Properties by Combined Experimental Techniques and Ab-Initio Calculation. Molecules 2022; 27:molecules27154905. [PMID: 35956855 PMCID: PMC9369965 DOI: 10.3390/molecules27154905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 11/21/2022] Open
Abstract
The development of conjugated polymer-based nanocomposites by adding metallic particles into the polymerization medium allows the proposition of novel materials presenting improved electrical and optical properties. Polyaniline Emeraldine-salt form (ES–PANI) has been extensively studied due to its controllable electrical conductivity and oxidation states. On the other hand, tungsten oxide (WO3) and its di-hydrated phases, such as WO3·2H2O, have been reported as important materials in photocatalysis and sensors. Herein, the WO3·2H2O phase was directly obtained during the in-situ polymerization of aniline hydrochloride from metallic tungsten (W), allowing the formation of hybrid nanocomposites based on its full oxidation into WO3·2H2O. The developed ES–PANI–WO3·2H2O nanocomposites were successfully characterized using experimental techniques combined with Density Functional Theory (DFT). The formation of WO3·2H2O was clearly verified after two hours of synthesis (PW2 nanocomposite), allowing the confirmation of purely physical interaction between matrix and reinforcement. As a result, increased electrical conductivity was verified in the PW2 nanocomposite: the DFT calculations revealed a charge transfer from the p-orbitals of the polymeric phase to the d-orbitals of the oxide phase, resulting in higher conductivity when compared to the pure ES–PANI.
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Tanweer MS, Iqbal Z, Alam M. Experimental Insights into Mesoporous Polyaniline-Based Nanocomposites for Anionic and Cationic Dye Removal. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8837-8853. [PMID: 35816402 DOI: 10.1021/acs.langmuir.2c00889] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This work presents the preparation of inorganic-organic hybrid nanocomposites, namely three-dimensional polyaniline (Pani)/activated silica gel (ASG) (3D Pani@ASG), their characterization, and in removing application as a potential adsorbent for cationic brilliant green (BG), crystal violet (CV), and anionic Congo red (CR), and methyl orange (MO) dyes. Pani@ASG nanocomposites have been prepared by the in situ polymerization method and characterized using various techniques such as Fourier transform infrared (FTIR), X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) with selected area electron diffraction, thermogravimetric analysis with derivative thermogravimetry, zeta potential analyses, and Brunauer-Emmett-Teller (BET). The scanning electron microscopy (SEM) study confirms the average particle size of the Pani@ASG nanocomposite is in the range of 5 nm. FESEM, TEM, FTIR, and XRD analysis proved the successful decoration of ASG over Pani. The BET result of Pani@ASG shows a mesoporous nature with a pore diameter of less than 3 nm and a surface area of 423.90 m2 g-1. Both SEM and TEM analyses show the proportional distribution of ASG over Pani's surface. The adsorption trend of BG and MO on the studied materials at pH 7 was found as follows: Pani@ASG > Pani > ASG. The highest sorption capacities of MO and BG on Pani@ASG were 161.29 and 136.98 mg/g (T = 298.15 K, and Pani@ASG dose: 0.04 g for MO and 0.06 g for BG), which were greater compared with bare Pani and bare ASG, respectively. The interaction mechanism behind the adsorption of BG and MO dyes onto the Pani@ASG nanocomposite includes electrostatic interaction, π-π interaction, and hydrogen bonding. The mechanistic pathway and the interactions between the targeted dyes and Pani@ASG were further studied using adsorption isotherm, adsorption kinetics, and thermodynamics.
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Affiliation(s)
- Mohd Saquib Tanweer
- Environmental Science Research Lab, Department of Applied Sciences and Humanities, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi 110025, India
| | - Zafar Iqbal
- Environmental Science Research Lab, Department of Applied Sciences and Humanities, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi 110025, India
| | - Masood Alam
- Environmental Science Research Lab, Department of Applied Sciences and Humanities, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi 110025, India
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Aizamddin MF, Mahat MM, Zainal Ariffin Z, Nawawi MA, Jani NA, Nor Amdan NA, Sadasivuni KK. Antibacterial Performance of Protonated Polyaniline-Integrated Polyester Fabrics. Polymers (Basel) 2022; 14:2617. [PMID: 35808667 PMCID: PMC9269132 DOI: 10.3390/polym14132617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/12/2022] [Accepted: 06/19/2022] [Indexed: 02/04/2023] Open
Abstract
During the last few years, there has been an increase in public awareness of antimicrobial fabrics, as well as an increase in commercial opportunities for their use in pharmaceutical and medical settings. The present study reports on the optimized fabrication of protonated polyaniline (PANI)-integrated polyester (PES) fabric. Para-toluene sulfonic acid (pTSA) was used to protonate the PANI fabric and thus grant it antibacterial performance. The results of a 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging assay showed high antioxidant activity of protonated PANI fabric at a scavenging efficiency of 84.83%. Moreover, the findings revealed remarkably sensitive antibacterial performance of PANI-integrated fabric against the following Gram-positive bacteria: methicillin-resistant Staphylococcus aureus (MRSA), S. epidermidis, and S. aureus; and also against the following Gram-negative bacteria: P. aeruginosa, E. coli, and S. typhi. Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy and energy dispersive X-ray fluorescence (EDXRF) were used to determine the changes in the structural and elemental compositions of PANI fabric upon treatment with bacterial strains. Electrochemical impedance spectroscopy (EIS) revealed that the electrical conductivity value of protonated PANI fabric decreased by one (1) order of magnitude against P. aeruginosa and S. aureus, from 3.35 ± 7.81 × 10-3 S cm-1 to 6.11 ± 7.81 × 10-4 S cm-1 and 4.63 ± 7.81 × 10-4 S cm-1, respectively. Scanning electron microscopy (SEM) analysis showed the disruption of bacterial membranes and their structures when exposed to protonated PANI fabric; meanwhile, thermogravimetric analysis (TGA) demonstrated that the fabric retained its thermal stability characteristics. These findings open up potential for the use of antimicrobial fabrics in the pharmaceutical and medical sectors.
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Affiliation(s)
- Muhammad Faiz Aizamddin
- School of Physics and Material Studies, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (M.F.A.); (N.A.J.)
| | - Mohd Muzamir Mahat
- School of Physics and Material Studies, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (M.F.A.); (N.A.J.)
| | - Zaidah Zainal Ariffin
- School of Biology, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia;
| | - Mohd Azizi Nawawi
- School of Chemistry and Environmental Studies, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia;
| | - Nur Aimi Jani
- School of Physics and Material Studies, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Malaysia; (M.F.A.); (N.A.J.)
| | - Nur Asyura Nor Amdan
- Bacteriology Unit, Infectious Disease Research Centre, Institute for Medical Research, National Institutes of Health, Setia Alam, Shah Alam 40170, Malaysia;
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Fuseini M, Zaghloul MMY. Statistical and qualitative analysis of the kinetic models using electrophoretic deposition of polyaniline. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.06.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Molecularly Imprinted Polymer-Amyloid Fibril-Based Electrochemical Biosensor for Ultrasensitive Detection of Tryptophan. BIOSENSORS 2022; 12:bios12050291. [PMID: 35624592 PMCID: PMC9139163 DOI: 10.3390/bios12050291] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/25/2022] [Accepted: 04/29/2022] [Indexed: 12/03/2022]
Abstract
A tryptophan (Trp) sensor was investigated based on electrochemical impedance spectroscopy (EIS) of a molecularly imprinted polymer on a lysozyme amyloid fibril (MIP-AF). The MIP-AF was composed of aniline as a monomer chemically polymerized in the presence of a Trp template molecule onto the AF surface. After extracting the template molecule, the MIP-AF had cavities with a high affinity for the Trp molecules. The obtained MIP-AF demonstrated rapid Trp adsorption and substantial binding capacity (50 µM mg−1). Trp determination was studied using non-Faradaic EIS by drop drying the MIP-AF on the working electrode of a screen-printed electrode. The MIP-AF provided a large linear range (10 pM–80 µM), a low detection limit (8 pM), and high selectivity for Trp determination. Furthermore, the proposed method also indicates that the MIP-AF can be used to determine Trp in real samples such as milk and cancer cell media.
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Iron-Oxide-Nanoparticles-Doped Polyaniline Composite Thin Films. Polymers (Basel) 2022; 14:polym14091821. [PMID: 35566991 PMCID: PMC9100357 DOI: 10.3390/polym14091821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 11/17/2022] Open
Abstract
Iron-oxide-doped polyaniline (PANI-IO) thin films were obtained by the polymerization of aniline monomers and iron oxide solutions in direct current glow discharge plasma in the absence of a buffer gas for the first time. The PANI-IO thin films were deposited on optical polished Si wafers in order to study surface morphology and evaluate their in vitro biocompatibility. The characterization of the coatings was accomplished using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), metallographic microscopy (MM), and X-ray photoelectron spectroscopy (XPS). In vitro biocompatibility assessments were also conducted on the PANI-IO thin films. It was observed that a uniform distribution of iron oxide particles inside the PANI layers was obtained. The constituent elements of the coatings were uniformly distributed. The Fe-O bonds were associated with magnetite in the XPS studies. The surface morphology of the PANI-IO thin films was assessed by atomic force microscopy (AFM). The AFM topographies revealed that PANI-IO exhibited the morphology of a uniformly distributed and continuous layer. The viability of Caco-2 cells cultured on the Si substrate and PANI-IO coating was not significantly modified compared to control cells. Moreover, after 24 h of incubation, we observed no increase in LDH activity in media in comparison to the control. In addition, our results revealed that the NO levels for the Si substrate and PANI-IO coating were similar to those found in the control sample.
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Ebube. Uwaya G, Wen Y, Bisetty K. A combined experimental-computational approach for electrocatalytic detection of epinephrine using nanocomposite sensor based on polyaniline/nickel oxide. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Farooq S, Bilal S, Tahir AA, Shah AUHA. Impact of dopant ratio on the energy harvesting activity of polyaniline modified counter electrodes for Pt‐free dye‐sensitized solar cells. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Shehna Farooq
- National Centre of Excellence in Physical Chemistry University of Peshawar Peshawar Pakistan
- Department of Chemistry University of Wah Punjab Pakistan
| | - Salma Bilal
- National Centre of Excellence in Physical Chemistry University of Peshawar Peshawar Pakistan
| | - Asif Ali Tahir
- Environment and Sustainability Institute (ESI) University of Exeter Penryn UK
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Beygisangchin M, Abdul Rashid S, Shafie S, Sadrolhosseini AR. Polyaniline Synthesized by Different Dopants for Fluorene Detection via Photoluminescence Spectroscopy. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7382. [PMID: 34885536 PMCID: PMC8658293 DOI: 10.3390/ma14237382] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 12/01/2022]
Abstract
The effects of different dopants on the synthesis, optical, electrical and thermal features of polyaniline were investigated. Polyaniline (PANI) doped with p-toluene sulfonic acid (PANI-PTSA), camphor sulphonic acid (PANI-CSA), acetic acid (PANI-acetic acid) and hydrochloric acid (PANI-HCl) was synthesized through the oxidative chemical polymerization of aniline under acidic conditions at ambient temperature. Fourier transform infrared light, X-ray diffraction, UV-visible spectroscopy, field emission scanning electron microscopy, photoluminescence spectroscopy and electrical analysis were used to define physical and structural features, bandgap values, electrical conductivity and type and degree of doping, respectively. Tauc calculation reveals the optical band gaps of PANI-PTSA, PANI-CSA, PANI-acetic acid and PANI-HCl at 3.1, 3.5, 3.6 and 3.9 eV, respectively. With the increase in dopant size, crystallinity is reduced, and interchain separations and d-spacing are strengthened. The estimated conductivity values of PANI-PTSA, PANI-CSA, PANI-acetic acid and PANI-HCl are 3.84 × 101, 2.92 × 101, 2.50 × 10-2, and 2.44 × 10-2 S·cm-1, respectively. Particularly, PANI-PTSA shows high PL intensity because of its orderly arranged benzenoid and quinoid units. Owing to its excellent synthesis, low bandgap, high photoluminescence intensity and high electrical features, PANI-PTSA is a suitable candidate to improve PANI properties and electron provider for fluorene-detecting sensors with a linear range of 0.001-10 μM and detection limit of 0.26 nM.
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Affiliation(s)
- Mahnoush Beygisangchin
- Nanomaterials Processing and Technology Laboratory, Institute of Nanoscience and Nanotechnology, University Putra Malaysia, Serdang 43400, Malaysia;
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, University Putra Malaysia, Serdang 43400, Malaysia
| | - Suraya Abdul Rashid
- Nanomaterials Processing and Technology Laboratory, Institute of Nanoscience and Nanotechnology, University Putra Malaysia, Serdang 43400, Malaysia;
| | - Suhaidi Shafie
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, University Putra Malaysia, Serdang 43400, Malaysia
- Faculty of Engineering, University Putra Malaysia, Serdang 43400, Malaysia
| | - Amir Reza Sadrolhosseini
- Magneto-Plasmonic Laboratory, Laser and Plasma Research Institute, Shahid Beheshti University, Tehran 1983969411, Iran;
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Pietrzak K, Wardak C, Malinowski S. Application of polyaniline nanofibers for the construction of nitrate all-solid-state ion-selective electrodes. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-02228-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractThe application of polyaniline nanofibers doped with chloride and nitrate ions (PANINFs-Cl and PANINFs-NO3) in potentiometry was described. Both kinds of nanofibers were used as an ion-to-electron transducer in ion-selective electrodes with solid contact (SCISEs). Extensive research on the properties of the nanofibers themselves (SEM, UV–Vis spectroscopy, FTIR) and the constructed electrodes (potentiometric methods, electrochemical impedance spectroscopy) has been carried out. Basic analytical parameters of electrodes containing various nanofibers contents in the ion-selective membrane and with nanofibers as an intermediate layer were determined. It was found that application of PANI nanofibers resulted in improvement of electrode performance (among others, better stability and reversibility of the electrode potential). The obtained sensors were characterized by a high slope of the calibration curve, a wide measuring range and a fast response time. Moreover, they were insensitive to change of redox potential, as well as light and the presence of oxygen in the solution, what is important from a practical point of view. They were also successfully used for nitrate determination in real environmental samples.
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