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Dang NTT, Le TQ, Duc Cuong N, Linh NLM, Le LS, Tran TD, Nguyen HP. Polythiophene-wrapped Chitosan Nanofibrils with a Bouligand Structure toward Electrochemical Macroscopic Membranes. ACS OMEGA 2024; 9:13680-13691. [PMID: 38559940 PMCID: PMC10976385 DOI: 10.1021/acsomega.3c07894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
Exploring structural biomimicry is a great opportunity to replicate hierarchical frameworks inspired by nature in advanced functional materials for boosting new applications. In this work, we present the biomimetic integration of polythiophene into chitosan nanofibrils in a twisted Bouligand structure to afford free-standing macroscopic composite membranes with electrochemical functionality. By considering the integrity of the Bouligand structure in crab shells, we can produce large, free-standing chitosan nanofibril membranes with iridescent colors and flexible toughness. These unique structured features lead the chitosan membranes to host functional additives to mimic hierarchically layered composites. We used the iridescent chitosan nanofibrils as a photonic platform to investigate the host-guest combination between thiophene and chitosan through oxidative polymerization to fabricate homogeneous polythiophene-wrapped chitosan composites. This biomimetic incorporation fully retains the twisted Bouligand organization of nanofibrils in the polymerized assemblies, thus giving rise to free-standing macroscopic electrochemical membranes. Our further experiments are the modification of the biomimetic polythiophene-wrapped chitosan composites on a glassy carbon electrode to design a three-electrode system for simultaneous electrochemical detection of uric acid, xanthine, hypoxanthine, and caffeine at trace concentrations.
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Affiliation(s)
- Nhan Thi Thanh Dang
- Department
of Chemistry, Hue University of Education, Hue University, 34 Le Loi, Hue 530000, Vietnam
| | - Thang Quoc Le
- Department
of Chemistry, Hue University of Education, Hue University, 34 Le Loi, Hue 530000, Vietnam
| | - Nguyen Duc Cuong
- Department
of Chemistry, Hue University of Education, Hue University, 34 Le Loi, Hue 530000, Vietnam
| | - Nguyen Le My Linh
- Department
of Chemistry, Hue University of Education, Hue University, 34 Le Loi, Hue 530000, Vietnam
| | - Lam Son Le
- Department
of Chemistry, Hue University of Sciences, Hue University, 77 Nguyen
Hue, Hue 530000, Vietnam
| | - Tien Dong Tran
- Department
of Chemistry, Hue University of Education, Hue University, 34 Le Loi, Hue 530000, Vietnam
| | - Hai Phong Nguyen
- Department
of Chemistry, Hue University of Sciences, Hue University, 77 Nguyen
Hue, Hue 530000, Vietnam
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2
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Mizunuma M, Suzuki M, Kobayashi T, Hara Y, Kaneko A, Furukawa K, Chuman Y. Development of Mn 2+-Specific Biosensor Using G-Quadruplex-Based DNA. Int J Mol Sci 2023; 24:11556. [PMID: 37511324 PMCID: PMC10380348 DOI: 10.3390/ijms241411556] [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: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
Metal ions are used in various situations in living organisms and as a part of functional materials. Since the excessive intake of metal ions can cause health hazards and environmental pollution, the development of new molecules that can monitor metal ion concentrations with high sensitivity and selectivity is strongly desired. DNA can form various structures, and these structures and their properties have been used in a wide range of fields, including materials, sensors, and drugs. Guanine-rich sequences respond to metal ions and form G-quadruplex structures and G-wires, which are the self-assembling macromolecules of G-quadruplex structures. Therefore, guanine-rich DNA can be applied to a metal ion-detection sensor and functional materials. In this study, the IRDAptamer library originally designed based on G-quadruplex structures was used to screen for Mn2+, which is known to induce neurodegenerative diseases. Circular dichroism and fluorescence analysis using Thioflavin T showed that the identified IRDAptamer sequence designated MnG4C1 forms a non-canonical G-quadruplex structure in response to low concentrations of Mn2+. A serum resistance and thermostability analysis revealed that MnG4C1 acquired stability in a Mn2+-dependent manner. A Förster resonance energy transfer (FRET) system using fluorescent molecules attached to the termini of MnG4C1 showed that FRET was effectively induced based on Mn2+-dependent conformational changes, and the limit of detection (LOD) was 0.76 µM for Mn2+. These results suggested that MnG4C1 can be used as a novel DNA-based Mn2+-detecting molecule.
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Affiliation(s)
- Masataka Mizunuma
- Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - Mirai Suzuki
- Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - Tamaki Kobayashi
- Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - Yuki Hara
- Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - Atsushi Kaneko
- Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - Kazuhiro Furukawa
- Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - Yoshiro Chuman
- Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan
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3
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Bhuvaneswari K, Radha S, Sreeja BS, Senthil Kumar P. Development of in-situ electrochemical heavy metal ion sensor using integrated 1D/0D/1D hybrid by MWCNT and CQDs supported MnO 2 nanomaterial. ENVIRONMENTAL RESEARCH 2023; 225:115570. [PMID: 36868450 DOI: 10.1016/j.envres.2023.115570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 10/23/2022] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
An integrated 1D/0D/1D hybrid nanomaterial was prepared from MWCNT supported carbon quantum dots @ MnO2 nanomaterial for a sensitive and selective electrochemical heavy metal ion sensor by hydrothermal methods. The developed nanomaterials were characterized by various analytical methods such as FESEM, HRTEM, XRD, FTIR, EDX and elemental mapping study, and also its electrochemical properties of the prepared samples were investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) analysis. Differential pulse voltammetry (DPV) analysis has been used to investigate the quantitative detection of heavy metal ions such as cadmium and chromium on modified electrodes under optimal conditions. The in-situ electrochemical sensitivity and selectivity of the samples were determined by varying various parameters, such as the concentration of heavy metal ions, different electrolytes and electrolyte pH. The observed DPV results show that prepared MWCNT (0.05 wt%) and CQD (0.1 wt%) supported MnO2 nanoparticles show effective detection response for chromium (IV) metal ion. In particular, 0D CQD, 1D MWCNT, and MnO2 hybrid nanostructures produced a synergistic effect among them, resulting in strong electrochemical performance of the prepared samples against the target metal ions.
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Affiliation(s)
- K Bhuvaneswari
- Materials and MEMS Laboratory, Department of Electronics and Communication Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India.
| | - S Radha
- Materials and MEMS Laboratory, Department of Electronics and Communication Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India.
| | - B S Sreeja
- Materials and MEMS Laboratory, Department of Electronics and Communication Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India; Centre of Excelllence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India; Centre of Excelllence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603 110, Tamil Nadu, India
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4
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A new unsymmetrical ferrocene-based double azine as a multichannel chemosensor for the detection of Cu2+ ions. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Fauzi NIM, Fen YW, Eddin FBK, Daniyal WMEMM. Structural and Optical Properties of Graphene Quantum Dots-Polyvinyl Alcohol Composite Thin Film and Its Potential in Plasmonic Sensing of Carbaryl. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4105. [PMID: 36432389 PMCID: PMC9698828 DOI: 10.3390/nano12224105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/13/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
In this study, graphene quantum dots (GQDs) and polyvinyl alcohol (PVA) composite was prepared and then coated on the surface of gold thin film via the spin coating technique. Subsequently, Fourier transform infrared spectroscopy (FT-IR), atomic force microscopy (AFM), and ultraviolet-visible spectroscopy (UV-Vis) were adopted to understand the structure, surface morphology, and optical properties of the prepared samples. The FT-IR spectral analysis revealed important bands, such as O-H stretching, C=O stretching, C-H stretching, and O=C=O stretching vibrations. The surface roughness of the GQDs-PVA composite thin film was found to be increased after exposure to carbaryl. On the other hand, the optical absorbance of the GQDs-PVA thin film was obtained and further analysis was conducted, revealing a band gap Eg value of 4.090 eV. The sensing potential of the thin film was analyzed using surface plasmon resonance (SPR) spectroscopy. The findings demonstrated that the developed sensor's lowest detection limit for carbaryl was 0.001 ppb, which was lower than that previously reported, i.e., 0.007 ppb. Moreover, other sensing performance parameters, such as full width at half maximum, detection accuracy, and signal-to-noise ratio, were also investigated to evaluate the sensor's efficiency.
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Affiliation(s)
- Nurul Illya Muhamad Fauzi
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Yap Wing Fen
- Functional Nanotechnology Devices Laboratory, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Faten Bashar Kamal Eddin
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Ragazzini I, Castagnoli R, Gualandi I, Cassani MC, Nanni D, Gambassi F, Scavetta E, Bernardi E, Ballarin B. A resistive sensor for humidity detection based on cellulose/polyaniline. RSC Adv 2022; 12:28217-28226. [PMID: 36320282 PMCID: PMC9530799 DOI: 10.1039/d2ra03982f] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/26/2022] [Indexed: 11/05/2022] Open
Abstract
Ambient humidity is an important parameter that affects the manufacturing and storage of several industrial and agricultural goods. In the view of the Internet of Things (IoT), single sensors could be associated with an object for smart monitoring enabling optimum conditions to be maintained. Nevertheless, the production of cost-effective humidity sensors for indoor and outdoor environmental monitoring currently represents the main bottleneck in the development of this technology. Herein we report the results obtained with sensors exclusively made of cellulose and polyaniline (cell/PANI) under strictly controlled relative humidity (30–50 RH%) and temperature (21 ± 1 °C) achieved with a climatic chamber that simulates the conditions of indoor air humidity, and at different RH% in a lab test chamber set-up. Cell/PANI sensors, prepared with a simple, inexpensive, and easily scalable industrial paper process, show a linear trend with a slope of 1.41 μA RH%−1 and a percentage of sensitivity of 13%. Response time as well as percentage of sensitivity results are similar to those of a commercial digital-output relative humidity and temperature sensor (DHT22) employed in parallel for comparison. The commercial sensor DHT22 has a sensitivity of 14%. This low-cost sensor has potential applications in agriculture, food monitoring, and medical and industrial environments as a disposable sensor for humidity detection. Preparation of highly conductive polyaniline-coated cellulose sheets for the fabrication of humidity sensors via a simple, inexpensive, and robust method. These sensors show a linear, rapid, and reliable response for humidity cycling.![]()
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Affiliation(s)
- Ilaria Ragazzini
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386
| | - Riccardo Castagnoli
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386
| | - Isacco Gualandi
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386,Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology CIRI MAM University of BolognaViale del Risorgimento 2I-40136 BolognaItaly,Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME University of BolognaViale del Risorgimento 2I-40136 BolognaItaly
| | - Maria Cristina Cassani
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386,Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology CIRI MAM University of BolognaViale del Risorgimento 2I-40136 BolognaItaly
| | - Daniele Nanni
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386
| | - Francesca Gambassi
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386
| | - Erika Scavetta
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386,Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology CIRI MAM University of BolognaViale del Risorgimento 2I-40136 BolognaItaly,Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME University of BolognaViale del Risorgimento 2I-40136 BolognaItaly
| | - Elena Bernardi
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386,Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME University of BolognaViale del Risorgimento 2I-40136 BolognaItaly
| | - Barbara Ballarin
- Department of Industrial Chemistry “Toso Montanari”, Bologna University, UdR INSTM BolognaVia Risorgimento 4I-40136BolognaItaly+390512093704+390512093386,Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology CIRI MAM University of BolognaViale del Risorgimento 2I-40136 BolognaItaly,Center for Industrial Research-Fonti Rinnovabili, Ambiente, Mare e Energia CIRI FRAME University of BolognaViale del Risorgimento 2I-40136 BolognaItaly
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7
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Xu M, Wang X, Liu X. Detection of Heavy Metal Ions by Ratiometric Photoelectric Sensor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11468-11480. [PMID: 36074997 DOI: 10.1021/acs.jafc.2c03916] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In recent years, heavy metal pollution has become increasingly serious. Heavy metals exist in an environment mainly in the form of ions (heavy metal ions, HMs). They can contaminate food, water, soil, and the atmosphere, leading to serious harm to plants and animals. With high bioavailability and nonbiodegradability, HMs can accumulate through biomagnification. Consequently, heavy metal pollution has become the cause of many fatal diseases threatening human health and ecological environment. Therefore, the accurate detection of HMs is vital and necessary. In this paper, the harm and limit standards of heavy metals were systematically summarized and the common analysis methods were overviewed and compared. Specifically, the latest research progress of ratiometric photoelectric sensor, including optical and electrical sensor, were mainly described. The research status and advantages and disadvantages of a photoelectric sensor were summarized. Furthermore, the future directions were proposed, which provided the reference for the further research and application of the ratiometric photoelectric sensor.
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Affiliation(s)
- Mingming Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Xiaoying Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Xiangping Liu
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing 210003, China
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8
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Langari MM, Antxustegi MM, Labidi J. Nanocellulose-based sensing platforms for heavy metal ions detection: A comprehensive review. CHEMOSPHERE 2022; 302:134823. [PMID: 35525457 DOI: 10.1016/j.chemosphere.2022.134823] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 06/14/2023]
Abstract
Increase in industrial activities has been arising a severe concern about water pollution caused by heavy metal ions (HMIs), such us lead (Pb2+), cadmium (Cd2+) or mercury (Hg2+). The presence of substantial amounts of these ions in the human body is harmful and can cause serious diseases. Hence, the detection of HMIs in water is of great importance. As technological advances have developed, some conventional methods have become obsolete due to some methodological disadvantages, giving way to a second generation that uses novel sensors. Recently, nanocellulose, as a biocompatible material, has drawn a remarkable attraction for developing sensors owing to its extraordinary physical and chemical properties. This review pays a special attention to the different dimensional nanocellulose-based sensors devised for HMIs recognition. What is more, different sensing techniques (optical and electrochemical), sensing mechanisms and the roles of nanocellulose in such sensors are discussed.
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Affiliation(s)
- Mahsa Mousavi Langari
- Biorefinery Processes Research Group, Chemical and Environmental Engineering Department, Faculty of Engineering, Gipuzkoa, University of the Basque Country UPV/EHU, Plaza Europa 1, 20018, Donostia, Spain
| | - M Mirari Antxustegi
- Biorefinery Processes Research Group, Chemical and Environmental Engineering Department, Faculty of Engineering, Gipuzkoa, University of the Basque Country UPV/EHU, Avenida Otaola 29, 20600, Eibar, Spain
| | - Jalel Labidi
- Biorefinery Processes Research Group, Chemical and Environmental Engineering Department, Faculty of Engineering, Gipuzkoa, University of the Basque Country UPV/EHU, Plaza Europa 1, 20018, Donostia, Spain.
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9
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Althomali RH, Alamry KA, Hussein MA, Tay GS. Versatile Applications Of Biopolymer Nanocomposites: A review. ChemistrySelect 2022. [DOI: 10.1002/slct.202200843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Raed H. Althomali
- Department of Chemistry, Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Khalid A. Alamry
- Department of Chemistry, Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Mahmoud A. Hussein
- Department of Chemistry, Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Guan S. Tay
- School of Industrial Technology Universiti Sains Malaysia 11800 USM Penang Malaysia
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Wang X, Teng Y, Ji C, Wu H, Li F. Critical target identification and human health risk ranking of metal ions based on mechanism-driven modeling. CHEMOSPHERE 2022; 301:134724. [PMID: 35487360 DOI: 10.1016/j.chemosphere.2022.134724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/15/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
Huge amounts of metals have been released into environment due to various anthropogenic activities, such as smelting and processing of metals and subsequent application in construction, automobiles, batteries, optoelectronic devices, and so on, resulting in widespread detection in environmental media. However, some metal ions are considered as "Environmental health hazards", leading to serious human health concerns through affecting critical targets. Hence, it is necessary to quickly and effectively recognize the key target of metal ions in living organisms. Fortunately, the development of high-throughput analysis and in silico approaches offer a promising tool for target identification. In this study, the key oncogenic target (tumor suppressor protein, p53) was screened by network analysis based on the comparative toxicogenomics database (CTD). Some metal ions could bind to p53 core domain, impair its function and induce the development of cancer risk, but its mechanisms were still unclear. Therefore, a quantitative structure-activity relationship (QSAR) model was constructed to characterize the binding constants (Ka) between DNA binding domain of p53 (p53 DBD) and nine metal ions (Mg2+, Ca2+, Cu2+, Zn2+, Co2+, Ni2+, Mn2+, Fe3+ and Ba2+). It had good robustness and predictive ability, which could be used to predict the Ka values of other six metal ions (Li+, Ag+, Cs+, Cd2+, Hg2+ and Pb2+) within application domain. The results showed strong binding affinity between Cd2+/Hg2+/Pb2+ and p53 DBD. Subsequent mechanism analyses revealed that first hydrolysis constant (|logKOH|) and polarization force (Z2/r) were key metal ion-characteristic parameters. The metal ions with weak hydrolysis constants and strong polarization forces could readily interact with N-containing histidine and S-containing cysteine of p53 DBD, which resulted in high Ka values. This study identified p53 as potential target for metal ions, revealed the key characteristics affecting the actions and provide a basic understanding of metal ions-p53 DBD interaction.
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Affiliation(s)
- Xiaoqing Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yuefa Teng
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Chenglong Ji
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, PR China
| | - Huifeng Wu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, PR China.
| | - Fei Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, PR China.
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Chopra L, Chohan JS, Sharma S, Pelc M, Kawala-Sterniuk A. Multifunctional Modified Chitosan Biopolymers for Dual Applications in Biomedical and Industrial Field: Synthesis and Evaluation of Thermal, Chemical, Morphological, Structural, In Vitro Drug-Release Rate, Swelling and Metal Uptake Studies. SENSORS (BASEL, SWITZERLAND) 2022; 22:3454. [PMID: 35591144 PMCID: PMC9103994 DOI: 10.3390/s22093454] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
The hydrogel materials are getting attention from the research due to their multidimensional usage in various fields. Chitosan is one of the most important hydrogels used in this regard. In this paper multifunctional binary graft copolymeric matrices of chitosan with monomer AA and various comonomers AAm and AN were prepared by performing free radical graft copolymerization in the presence of an initiator KPS. The binary grafting can be done at five different molar concentrations of binary comonomers at already optimized concentration of AA, KPS and other reaction conditions such as time, temperature, solvent amount, etc. Various optimum reaction conditions were investigated and presented in this work; the backbone as well as binary grafts Ch-graft-poly (AA-cop-AAm) and Ch-graft-poly (AA-cop-AN) were characterized via various physio-chemical techniques of analysis such as SEM analysis, Xray diffraction (XRD), TGA/DTA and FTIR. In the batch experiments, the binary grafts were investigated for the percent swelling with respect to pH (pH of 2.2, 7.0, 7.4 and 9.4) and time (contact time 1 to 24 h). Uploading and controllable in vitro release of the drug DS (anti-inflammatory) was examined with reverence to gastrointestinal pH and time. The binary grafts showed significantly better-controlled drug diffusion than the unmodified backbone. The kinetic study revealed that the diffusion of the drug occurred by the non-Fickian way. In the case of separation technologies, experiments (batch tests) were executed for the toxic bivalent metal ions Fe (II) and Pb (II) sorption from the aqueous media with respect to the parameters such as interaction period, concentration of fed metal ions in solution, pH and temperature. The binary grafted matrices showed superior results compared to chitosan. The kinetics study revealed that the matrices show pseudo-second order adsorption. The graft copolymer Ch-graft-poly (AA-cop-AAm) provided superior results in sustainable drug release as well as metal ion uptake. The study explored the potential of chitosan-based materials in the industry as well in the biomedical field. The results proved these to be excellent materials with a lot of potential as adsorbents.
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Affiliation(s)
- Lalita Chopra
- Environment Chemistry Laboratory, Department of Chemistry (UIS), Chandigarh University, Mohali 140413, India;
| | - Jasgurpreet Singh Chohan
- Mechanical Engineering Department, University Centre for Research and Development, Chandigarh University, Mohali 140413, India;
| | - Shubham Sharma
- Mechanical Engineering Department, University Centre for Research and Development, Chandigarh University, Mohali 140413, India;
- Department of Mechanical Engineering, IK Gujral Punjab Technical University, Main Campus, Kapurthala 144603, India
| | - Mariusz Pelc
- Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, ul. Proszkowska 76, 45-758 Opole, Poland;
- School of Computing of Mathematical Sciences, Old Royal Naval College, University of Greenwich, Park Row, London SE10 9LS, UK
| | - Aleksandra Kawala-Sterniuk
- Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, ul. Proszkowska 76, 45-758 Opole, Poland;
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Evaluation of Structural and Optical Properties of Graphene Oxide-Polyvinyl Alcohol Thin Film and Its Potential for Pesticide Detection Using an Optical Method. PHOTONICS 2022. [DOI: 10.3390/photonics9050300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In the present work, graphene oxide (GO)–polyvinyl alcohol (PVA) composites thin film has been successfully synthesized and prepared by spin coating techniques. Then, the properties and morphology of the samples were characterized using Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), and atomic force microscopy (AFM). Experimental FTIR results for GO–PVA thin film demonstrated the existence of important functional groups such as -CH2 stretching, C=O stretching, and O–H stretching. Furthermore, UV-Vis analysis indicated that the GO–PVA thin film had the highest absorbance that can be observed at wavelengths ranging from 200 to 500 nm with a band gap of 4.082 eV. The surface morphology of the GO–PVA thin film indicated the thickness increased when in contact with carbaryl. The incorporation of the GO–PVA thin film with an optical method based on the surface plasmon resonance (SPR) phenomenon demonstrated a positive response for the detection of carbaryl pesticide as low as 0.02 ppb. This study has successfully proposed that the GO–PVA thin film has high potential as a polymer nanomaterial-based SPR sensor for pesticide detection.
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13
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Wang D, Marin L, Cheng X. Fluorescent chitosan-BODIPY macromolecular chemosensors for detection and removal of Hg 2+ and Fe 3+ ions. Int J Biol Macromol 2022; 198:194-203. [PMID: 34973270 DOI: 10.1016/j.ijbiomac.2021.12.075] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 12/26/2022]
Abstract
The detection of heavy metals, such as Hg2+ and Fe3+, is of great significance. In this work, fluorescent small-molecule BODIPY (BY-3) bearing CC group was synthesized firstly. And then, the chitosan-based polymer sensor CY-1 was synthesized through the spontaneous NH2/C≡C click reaction. The synthesized CY-1 can effectively bind and recognize Hg2+/Hg+ by the -C=N groups formed in the click reaction. Moreover, the macromolecular sensors CS-1 and CS-2 were synthesized by incorporating another recognition sites to CY-1. These synthesized macromolecular sensors can not only recognize Hg2+/Hg+, but also effectively recognize Fe3+/Fe2+. All of them exhibited significant quenching effect, visible to the naked eye under UV irradiation. The detection limit of CY-1 for Hg2+ was 1.51 × 10-6 mol/L, and the detection limit of CS-2 for Fe3+ was 2.30 × 10-6 mol/L. The BODIPY-chitosan sensors synthesized in this work have the functions of removing heavy metal ions besides the identifying ability. The maximum adsorption capacity of 1 g chitosan to Hg2+ was 108 mg as the best one. This article provides a new method to prepare macromolecular sensors for the detection and removal of heavy metal ions. As a useful natural polymer, chitosan's application scope was enlarged.
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Affiliation(s)
- Die Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Luminita Marin
- "Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
| | - Xinjian Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China.
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14
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Sensing Methods for Hazardous Phenolic Compounds Based on Graphene and Conducting Polymers-Based Materials. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9100291] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
It has been known for years that the phenolic compounds are able to exert harmful effects toward living organisms including humans due to their high toxicity. Living organisms were exposed to these phenolic compounds as they were released into the environment as waste products from several fast-growing industries. In this regard, tremendous efforts have been made by researchers to develop sensing methods for the detection of these phenolic compounds. Graphene and conducting polymers-based materials have arisen as a high potential sensing layer to improve the performance of the developed sensors. Henceforth, this paper reviews the existing investigations on graphene and conducting polymer-based materials incorporated with various sensors that aimed to detect hazardous phenolic compounds, i.e., phenol, 2-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, pentachlorophenol, 2-nitrophenol, 4-nitrophenol, 2,4-dinitrophenol, and 2,4-dimethylphenol. The whole picture and up-to-date information on the graphene and conducting polymers-based sensors are arranged in systematic chronological order to provide a clearer insight in this research area. The future perspectives of this study are also included, and the development of sensing methods for hazardous phenolic compounds using graphene and conducting polymers-based materials is expected to grow more in the future.
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15
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Exploration on Structural and Optical Properties of Nanocrystalline Cellulose/Poly(3,4-Ethylenedioxythiophene) Thin Film for Potential Plasmonic Sensing Application. PHOTONICS 2021. [DOI: 10.3390/photonics8100419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
There are extensive studies on the development of composite solutions involving various types of materials. Therefore, this works aims to incorporate two polymers of nanocrystalline cellulose (NCC) and poly(3,4-ethylenethiophene) (PEDOT) to develop a composite thin film via the spin-coating method. Then, Fourier transform infrared (FTIR) spectroscopy is employed to confirm the functional groups of the NCC/PEDOT thin film. The atomic force microscopy (AFM) results revealed a relatively homogeneous surface with the roughness of the NCC/PEDOT thin film being slightly higher compared with individual thin films. Meanwhile, the ultraviolet/visible (UV/vis) spectrometer evaluated the optical properties of synthesized thin films, where the absorbance peaks can be observed around a wavelength of 220 to 700 nm. An optical band gap of 4.082 eV was obtained for the composite thin film, which is slightly lower as compared with a single material thin film. The NCC/PEDOT thin film was also incorporated into a plasmonic sensor based on the surface plasmon resonance principle to evaluate the potential for sensing mercury ions in an aqueous medium. Resultantly, the NCC/PEDOT thin film shows a positive response in detecting the various concentrations of mercury ions. In conclusion, this work has successfully developed a new sensing layer in fabricating an effective and potential heavy metal ions sensor.
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Lan G, Zhu R, Jin W, Luo P, Chen R, Yi J, Wei W. Highly sensitive detection of Hg 2+ employing SPR sensor modified with chitosan/poly (vinyl alcohol)/SnO 2 film. Anal Bioanal Chem 2021; 413:5703-5714. [PMID: 34337685 DOI: 10.1007/s00216-021-03542-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 11/28/2022]
Abstract
Water contamination by mercury ions (Hg2+) causes irreversible and serious effect on the ambient environment, ecological systems, and human health, necessitating further improvement of Hg2+ monitoring at low concentrations. Here, we proposed a novel surface plasmon resonance (SPR) sensor for Hg2+ detection with desirable advantages of high sensitivity, simple operation, label-free, and low cost, in which the chitosan/poly (vinyl alcohol)/SnO2 composite film was modified on sensing surface as the active layer for sensitivity enhancement. Benefiting from the relatively high refractive index of SnO2 nanoparticles, the evanescent field generated at the metal-solution interface can be significantly enhanced, which results in a 5 times improvement of sensitivity. Through appropriate optimization in the aspects of componential constitutions, the sensor exhibits excellent sensitivity of 25.713 nm/μg/L and ultra-low calculated detection limit of 6.61 ng/L(32.95 pM). Such detection limit is strikingly lower than the limitation (10 nM) in drinking water set by the US Environmental Protection Agency. In addition, the as-prepared sensor presents relatively high selectivity for Hg2+, attributing to plenty of binding sites for specific adsorption produced by functionalized chitosan/poly (vinyl alcohol) composites, which have been furtherly verified by characterization of FTIR and XPS spectra. The proposed sensor also exhibits great repeatability and good time stability for 15 days. This work provides a promising strategy for developing high-performance SPR sensor for Hg2+ detection and a prospective application in environmental monitoring.
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Affiliation(s)
- Guilian Lan
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Ruirui Zhu
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Weifeng Jin
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, People's Republic of China.
| | - Peng Luo
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Rong Chen
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Juemin Yi
- Institut für Physik, Carl von Ossietzky Universität, 26111, Oldenburg, Germany
| | - Wei Wei
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, People's Republic of China.
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17
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25th Anniversary of Molecules-Recent Advances in Green Chemistry. Molecules 2021; 26:molecules26123768. [PMID: 34205633 PMCID: PMC8235150 DOI: 10.3390/molecules26123768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 11/25/2022] Open
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18
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Fauzi NIM, Fen YW, Omar NAS, Hashim HS. Recent Advances on Detection of Insecticides Using Optical Sensors. SENSORS (BASEL, SWITZERLAND) 2021; 21:3856. [PMID: 34204853 PMCID: PMC8199770 DOI: 10.3390/s21113856] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 02/07/2023]
Abstract
Insecticides are enormously important to industry requirements and market demands in agriculture. Despite their usefulness, these insecticides can pose a dangerous risk to the safety of food, environment and all living things through various mechanisms of action. Concern about the environmental impact of repeated use of insecticides has prompted many researchers to develop rapid, economical, uncomplicated and user-friendly analytical method for the detection of insecticides. In this regards, optical sensors are considered as favorable methods for insecticides analysis because of their special features including rapid detection time, low cost, easy to use and high selectivity and sensitivity. In this review, current progresses of incorporation between recognition elements and optical sensors for insecticide detection are discussed and evaluated well, by categorizing it based on insecticide chemical classes, including the range of detection and limit of detection. Additionally, this review aims to provide powerful insights to researchers for the future development of optical sensors in the detection of insecticides.
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Affiliation(s)
- Nurul Illya Muhamad Fauzi
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (N.I.M.F.); (N.A.S.O.)
| | - Yap Wing Fen
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (N.I.M.F.); (N.A.S.O.)
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Nur Alia Sheh Omar
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (N.I.M.F.); (N.A.S.O.)
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Hazwani Suhaila Hashim
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
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19
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Multiferroic BiFeO3 dithizone functionalized as optical sensor for detection and determination of some heavy metals in environmental samples. BULLETIN OF MATERIALS SCIENCE 2021. [DOI: 10.1007/s12034-021-02396-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Development of cost-effective transparent bionanocomposite films based on pullulan and cellulose nanofibers for packaging application. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03687-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Application of PEDOT:PSS and Its Composites in Electrochemical and Electronic Chemosensors. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9040079] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) is a highly important and attractive conducting polymer as well as commercially available in organic electronics, including electrochemical and electronic chemosensors, due to its unique features such as excellent solution-fabrication capability and miscibility, high and controllable conductivity, excellent chemical and electrochemical stability, good optical transparency and biocompatibility. In this review, we present a comprehensive overview of the recent research progress of PEDOT:PSS and its composites, and the application in electrochemical and electronic sensors for detecting liquid-phase or gaseous chemical analytes, including inorganic or organic ions, pH, humidity, hydrogen peroxide (H2O2), ammonia (NH3), CO, CO2, NO2, and organic solvent vapors like methanol, acetone, etc. We will discuss in detail the structural, architectural and morphological optimization of PEDOT:PSS and its composites with other additives, as well as the fabrication technology of diverse sensor systems in response to a wide range of analytes in varying environments. At the end of the review will be given a perspective summary covering both the key challenges and potential solutions in the future research of PEDOT:PSS-based chemosensors, especially those in a flexible or wearable format.
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22
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Abstract
A novel vanadium–cellulose composite thin film-based on angular interrogation surface plasmon resonance (SPR) sensor for ppb-level detection of Ni(II) ion was developed. Experimental results show that the sensor has a linear response to the Ni(II) ion concentrations in the range of 2–50 ppb with a determination coefficient (R2) of 0.9910. This SPR sensor can attain a maximum sensitivity (0.068° ppb−1), binding affinity constant (1.819 × 106 M−1), detection accuracy (0.3034 degree−1), and signal-to-noise-ratio (0.0276) for Ni(II) ion detection. The optical properties of thin-film targeting Ni(II) ions in different concentrations were obtained by fitting the SPR reflectance curves using the WinSpall program. All in all, the proposed Au/MPA/V–CNCs–CTA thin-film-based surface plasmon resonance sensor exhibits better sensing performance than the previous film-based sensor and demonstrates a wide and promising technology candidate for environmental monitoring applications in the future.
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23
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Omar NAS, Fen YW, Ramli I, Sadrolhosseini AR, Abdullah J, Yusof NA, Kamil YM, Mahdi MA. An Optical Sensor for Dengue Envelope Proteins Using Polyamidoamine Dendrimer Biopolymer-Based Nanocomposite Thin Film: Enhanced Sensitivity, Selectivity, and Recovery Studies. Polymers (Basel) 2021; 13:762. [PMID: 33671059 PMCID: PMC7957696 DOI: 10.3390/polym13050762] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/18/2021] [Accepted: 02/20/2021] [Indexed: 11/16/2022] Open
Abstract
This paper proposes a novel idea to enhance the sensitivity and selectivity of surface plasmon resonance (SPR) optical sensor for detection of dengue virus type-2 envelope proteins (DENV-2 E-proteins) using polyamidoamine (PAMAM) dendrimer biopolymer-based nanocomposite thin film. For this purpose, two ranges of DENV-2 E-protein concentrations, i.e., 0.000008-0.0001 nM and 0.00008-0.005 nM were evaluated, and the lowest detectable concentration was achieved at 0.00008 nM. The incorporation of PAMAM dendrimer-based nanocomposite thin film with an SPR sensor exhibited a significant increase in sensitivity and binding affinity to a lower range DENV-2 E-protein concentrations. Moreover, the proposed sensor displayed good selectivity towards DENV-2 E-proteins and have an average recovery of 80-120%. The findings of this study demonstrated that PAMAM dendrimer-based nanocomposite thin film combined with SPR sensor is a promising diagnostic tool for sensitive and selective detection of DENV-2 E-proteins.
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Affiliation(s)
- Nur Alia Sheh Omar
- Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (I.R.); (J.A.); (N.A.Y.)
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Yap Wing Fen
- Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (I.R.); (J.A.); (N.A.Y.)
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Irmawati Ramli
- Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (I.R.); (J.A.); (N.A.Y.)
| | - Amir Reza Sadrolhosseini
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Jaafar Abdullah
- Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (I.R.); (J.A.); (N.A.Y.)
| | - Nor Azah Yusof
- Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (I.R.); (J.A.); (N.A.Y.)
- Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Yasmin Mustapha Kamil
- inLAZER Dynamics Sdn Bhd, InnoHub Unit, Putra Science Park, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
| | - Mohd Adzir Mahdi
- Wireless and Photonics Network Research Centre, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia;
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Minami H, Itamoto N, Watanabe W, Li Z, Nakamura K, Kobayashi N. Chiroptical property enhancement of chiral Eu(III) complex upon association with DNA-CTMA. Sci Rep 2020; 10:18917. [PMID: 33144619 PMCID: PMC7609531 DOI: 10.1038/s41598-020-75808-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/20/2020] [Indexed: 12/16/2022] Open
Abstract
DNA-based materials have attracted much attention due to their unique photo-functional properties and potential applications in various fields such as luminescent and biological systems, nanodevices, etc. In this study, the photophysical properties of a chiral Eu(III) complex, namely (Eu(D-facam)3), within DNA films were extensively investigated. The enhancement of photoluminescence (more than 25-folds increase of luminescence quantum yield) and degree of circularly polarization in luminescence (glum = − 0.6) was observed upon interaction with DNA. Various photophysical analyses suggested that the emission enhancement was mainly due to an increase of the sensitization efficiency (high ηsens) from the ligands to Eu(III) and suppression of the vibrational deactivation upon immobilization onto the DNA molecule. From CD and VCD measurements, it was suggested that the coordination structure of Eu(D-facam)3 was affected by the interaction with DNA, suggesting that the structural change of Eu(D-facam)3 contributed to the improvement of its luminescent properties.
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Affiliation(s)
- Haruki Minami
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Natsumi Itamoto
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Wataru Watanabe
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Ziying Li
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Kazuki Nakamura
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Norihisa Kobayashi
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
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Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application. CRYSTALS 2020. [DOI: 10.3390/cryst10100875] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, highly functional cationically modified nanocrystalline cellulose (NCC)/carboxyl-functionalized graphene quantum dots (CGQD) has been described. The surface of NCC was first modified with hexadecyltrimethylammonium bromide (CTA) before combining with CGQD. The CGQD, CTA-NCC and CTA-NCC/CGQD nanocomposites thin films were prepared using spin coating technique. The obtained nanocomposite thin films were then characterized by using the Fourier transform infrared spectroscopy (FTIR) which confirmed the existence of hydroxyl groups, carboxyl groups and alkyl groups in CTA-NCC/CGQD. The optical properties of the thin films were characterized using UV–Vis spectroscopy. The absorption of CTA-NCC/CGQD was high with an optical band gap of 4.127 eV. On the other hand, the CTA-NCC/CGQD nanocomposite thin film showed positive responses towards glucose solution of different concentration using an optical method based on surface plasmon resonance phenomenon. This work suggests that the novel nanocomposite thin film has potential for a sensing application in glucose detection.
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Fauzi NIM, Fen YW, Omar NAS, Saleviter S, Daniyal WMEMM, Hashim HS, Nasrullah M. Nanostructured Chitosan/Maghemite Composites Thin Film for Potential Optical Detection of Mercury Ion by Surface Plasmon Resonance Investigation. Polymers (Basel) 2020; 12:E1497. [PMID: 32635555 PMCID: PMC7407496 DOI: 10.3390/polym12071497] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/30/2022] Open
Abstract
In this study, synthesis and characterization of chitosan/maghemite (Cs/Fe2O3) composites thin film has been described. Its properties were characterized using Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM) and ultraviolet-visible spectroscopy (UV-Vis). FTIR confirmed the existence of Fe-O bond, C-N bond, C-C bond, C-O bond, O=C=O bond and O-H bond in Cs/Fe2O3 thin film. The surface morphology of the thin film indicated the relatively smooth and homogenous thin film, and also confirmed the interaction of Fe2O3 with the chitosan. Next, the UV-Vis result showed high absorbance value with an optical band gap of 4.013 eV. The incorporation of this Cs/Fe2O3 thin film with an optical-based method, i.e., surface plasmon resonance spectroscopy showed positive response where mercury ion (Hg2+) can be detected down to 0.01 ppm (49.9 nM). These results validate the potential of Cs/Fe2O3 thin film for optical sensing applications in Hg2+ detection.
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Affiliation(s)
- Nurul Illya Muhamad Fauzi
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.I.M.F.); (H.S.H.)
| | - Yap Wing Fen
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.I.M.F.); (H.S.H.)
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (S.S.); (W.M.E.M.M.D.)
| | - Nur Alia Sheh Omar
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (S.S.); (W.M.E.M.M.D.)
| | - Silvan Saleviter
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (S.S.); (W.M.E.M.M.D.)
| | - Wan Mohd Ebtisyam Mustaqim Mohd Daniyal
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.A.S.O.); (S.S.); (W.M.E.M.M.D.)
| | - Hazwani Suhaila Hashim
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (N.I.M.F.); (H.S.H.)
| | - Mohd Nasrullah
- Faculty of Civil Engineering Technology, Universiti Malaysia Pahang (UMP), Gambang 26300, Kuantan, Pahang, Malaysia;
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