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Suchikova Y, Kovachov S, Bohdanov I, Karipbayev ZT, Zhydachevskyy Y, Lysak A, Pankratov V, Popov AI. Advanced Synthesis and Characterization of CdO/CdS/ZnO Heterostructures for Solar Energy Applications. Materials (Basel) 2024; 17:1566. [PMID: 38612079 PMCID: PMC11012363 DOI: 10.3390/ma17071566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024]
Abstract
This study introduces an innovative method for synthesizing Cadmium Oxide /Cadmium Sulfide/Zinc Oxide heterostructures (CdO/CdS/ZnO), emphasizing their potential application in solar energy. Utilizing a combination of electrochemical deposition and oxygen annealing, the research provides a thorough analysis of the heterostructures through scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, and photoluminescence (PL) spectroscopy. The findings reveal a complex surface morphology and a composite structure with significant contributions from hexagonal CdS and cubic CdO phases. The study highlights the uniformity in the distribution of luminescent centers and the crystalline quality of the heterostructures, which is evident from the PL analysis. The redshift observed in the emission peak and the additional peaks in the excitation spectrum indicate intricate optical properties influenced by various factors, including quantum confinement and lattice strain. The research demonstrates these heterostructures' potential in enhancing solar cells' efficiency and applicability in optoelectronic devices. This comprehensive characterization and analysis pave the way for future optimization and application in efficient and sustainable solar energy solutions.
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Affiliation(s)
- Yana Suchikova
- The Department of Physics and Methods of Teaching Physics, Berdyansk State Pedagogical University, 71100 Berdyansk, Ukraine; (Y.S.); (S.K.); (I.B.); (Y.Z.); (A.L.)
| | - Sergii Kovachov
- The Department of Physics and Methods of Teaching Physics, Berdyansk State Pedagogical University, 71100 Berdyansk, Ukraine; (Y.S.); (S.K.); (I.B.); (Y.Z.); (A.L.)
| | - Ihor Bohdanov
- The Department of Physics and Methods of Teaching Physics, Berdyansk State Pedagogical University, 71100 Berdyansk, Ukraine; (Y.S.); (S.K.); (I.B.); (Y.Z.); (A.L.)
| | - Zhakyp T. Karipbayev
- Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan;
- Institute of Solid State Physics, University of Latvia, 8 Kengaraga, 1063 Riga, Latvia
| | - Yaroslav Zhydachevskyy
- The Department of Physics and Methods of Teaching Physics, Berdyansk State Pedagogical University, 71100 Berdyansk, Ukraine; (Y.S.); (S.K.); (I.B.); (Y.Z.); (A.L.)
- Institute of Physics, Polish Academy of Sciences, al. Lotnikow 32/46, 02-668 Warsaw, Poland
| | - Anastasiia Lysak
- The Department of Physics and Methods of Teaching Physics, Berdyansk State Pedagogical University, 71100 Berdyansk, Ukraine; (Y.S.); (S.K.); (I.B.); (Y.Z.); (A.L.)
- Institute of Physics, Polish Academy of Sciences, al. Lotnikow 32/46, 02-668 Warsaw, Poland
| | - Vladimir Pankratov
- Institute of Solid State Physics, University of Latvia, 8 Kengaraga, 1063 Riga, Latvia
| | - Anatoli I. Popov
- Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan;
- Institute of Solid State Physics, University of Latvia, 8 Kengaraga, 1063 Riga, Latvia
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Ray P, Pal S, Sarkar A, Sultana F, Basu A, Show B. Oyster Pearl-Shaped Ternary Iron Chalcogenide, FeSe 0.5Te 0.5, Films on FTO through Electrochemical Growth from the Exchange of Chalcogens Boosted the Enzyme-Free Urea-Sensing Ability toward Real Analytes. ACS Appl Bio Mater 2024; 7:1621-1642. [PMID: 38430188 DOI: 10.1021/acsabm.3c01086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Here, iron chalcogenide thin films were developed for the first time by using the less hazardous electrodeposition technique at optimized conditions on an FTO glass substrate. The chalcogenides have different surface, morphological, structural, and optical properties, as well as an enzyme-free sensing behavior toward urea. Numerous small crystallites of about ∼20 to 25 nm for FeSe, ∼18 to 25 nm for FeTe, and ∼18 to 22 nm in diameter for FeSeTe are observed with partial agglomeration under an electron microscope, having a mixed phase of tetragonal and orthorhombic structures of FeSe, FeTe, and, FeSeTe, respectively. Profilometry, XRD, FE-SEM, HR-TEM, XPS, EDX, UV-vis spectroscopy, and FT-IR spectroscopy were used for the analysis of binary and ternary composite semiconductors, FeSe, FeTe, and FeSeTe, respectively. Electrochemical experiments were conducted with the chalcogenide thin films and urea as the analyte in phosphate-buffered media at a pH of ∼ 7.4 in the concentration range of 3-413 μM. Cyclic voltammetry was performed to determine the sensitivity of the prepared electrode at an optimized scan rate of 50 mV s-1. The electrodeposited chalcogenide films appeared with a low detection limit and satisfactory sensitivity, of which the ternary chalcogenide film has the lowest LOD of 1.16 μM and the maximum sensitivity of 74.22 μA μM-1 cm-2. The transition metal electrode has a very wide range of detection limit of 1.25-2400 μM with a short response time of 4 s. This fabricated biosensor is capable of exhibiting almost 75% of its starting activity after 2 weeks of storage in the freezer at 4 °C. Simple methods of preparation, a cost-effective process, and adequate electrochemical sensing of urea confirm that the prepared sensor is suitable as an enzyme-free urea sensor and can be utilized for future studies.
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Affiliation(s)
- Purbali Ray
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sunanda Pal
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Abhimanyu Sarkar
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Farhin Sultana
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Arghyadeep Basu
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
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Ghorui UK, Show B, Roy D, Basak A, Adhikary B, Mondal A. Strategically Designed Pd-Induced Changes in Alkaline Hydrogen Evolution Reaction and Oxygen Evolution Reaction Performances of Electrochemical Water Oxidation by the Galvanically Synthesized MoO 2/MoO 3 Composite Thin Film. ACS Appl Mater Interfaces 2024; 16:3460-3475. [PMID: 38224570 DOI: 10.1021/acsami.3c16499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Electrochemical water oxidation is believed to be an effective pathway to produce clean, carbon-free, and environmentally sustainable green energy. In this work, we report a simple, easy-to-construct, facile, low-cost, and single-step galvanic technique to synthesize a Pd-supported temperature-assisted MoOx thin film nanocomposite for effective water oxidation. The most suitable nanocomposite exhibits very low overpotential at 10 mA/cm2 with smaller Tafel slope values for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) processes in an alkaline medium. The formation of a metal oxide-metal junction accelerates the growth of more active sites, promoting induced electronic synergism at the MoOx-Pd interface. This endows higher electrical conductivity and faster electron transfer kinetics, thus accelerating the faster water dissociation reaction following the Tafel-Volmer mechanism to boost the HER process in an alkaline medium. The excellent electrochemical HER and OER performances of our electrocatalyst even supersede the accomplishments of the benchmark catalysts Pt/C and RuO2. Moreover, neither of these two catalysts demonstrates both catalytic reactions, i.e., HER and OER at the same time, which have been observed for our synthesized catalyst. Our findings illustrate the potential of a thin-film MoOx-Pd nanocomposite to be an exceedingly effective electrocatalyst developed by interface engineering strategies. This also provides insight into designing several other semiconductor composite catalysts using simple synthesis techniques for highly efficient HER/OER processes that could be alternatives to benchmark electrocatalysts for water electrolysis.
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Affiliation(s)
- Uday Kumar Ghorui
- Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | | | - Dipayan Roy
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata 700032, India
| | - Arindam Basak
- Thin Film Photovoltaic Lab, School of Electronics Engineering, KIIT-Deemed to Be University, Bhubaneswar 751024, Odisha, India
| | - Bibhutosh Adhikary
- Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Anup Mondal
- Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
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Li TT, Wang S, Li J, Zhang Y, Liu X, Liu L, Peng HK, Ren HT, Ling L, Lin JH, Lou CW. Braided scaffolds with polypyrrole/polydopamine/hydroxyapatite coatings with electrical conductivity and osteogenic properties for bone tissue engineering. J Biomater Sci Polym Ed 2023; 34:2498-2515. [PMID: 37795599 DOI: 10.1080/09205063.2023.2265134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/28/2023] [Indexed: 10/06/2023]
Abstract
When impaired bones are grafted with bone scaffolds, the behaviors of osteoblast are dependent on the implant materials and surface morphology. To this end, we modulated the surface morphology of scaffolds that promote cell growth. In this study, ice-template and spraying method methods are employed to coat different proportions of PDA and PPy over the PLA/PVA weaving scaffolds, after which HA is Coated over via the electrochemical deposition, forming weaving scaffolds with electrically conductive PDA/PPy/HA coating. The test results indicate that with a PPy/PDA concentration ratio is 30, the PPy particles are more uniformly distributed on the fiber surface. The scaffolds are wrapped in a HA coating layer with a high purity, and calcium and phosphorus elements are evenly dispersed with a Ca/P ratio being 1.69. Owing to the synergistic effect between PDA and PPy coating, the scaffolds demonstrate excellent electrochemical stability and electrochemical activity. The biological activity of the scaffold increased to 274.66% under electrical stimulation. The new thinking proposed by this study extends the worth of applying textile structure to the medical field, the application of which highly increases the prospect of bone tissue engineering.
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Affiliation(s)
- Ting-Ting Li
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
| | - Shiqi Wang
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Jiaxin Li
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Ying Zhang
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Xing Liu
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Liyan Liu
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Hao-Kai Peng
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
| | - Hai-Tao Ren
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
| | - Lei Ling
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin, China
| | - Jia-Horng Lin
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
- College of Material and Chemical Engineering, Minjiang University, Fuzhou, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan
- Department of Medical Research, China Medical University Hospital China Medica University, Taichung City, Taiwan
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, China
- Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City, Taiwan
- School of Chinese Medicine, China Medical University, Taichung City, Taiwan
| | - Ching-Wen Lou
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
- College of Material and Chemical Engineering, Minjiang University, Fuzhou, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan
- Department of Medical Research, China Medical University Hospital China Medica University, Taichung City, Taiwan
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, China
- Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City, Taiwan
- School of Chinese Medicine, China Medical University, Taichung City, Taiwan
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Kadyrzhanov DB, Kaliyekperov ME, Idinov MT, Kozlovskiy AL. Study of the Structural, Morphological, Strength and Shielding Properties of CuBi 2O 4 Films Obtained by Electrochemical Synthesis. Materials (Basel) 2023; 16:7241. [PMID: 38005170 PMCID: PMC10673049 DOI: 10.3390/ma16227241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/17/2023] [Accepted: 11/19/2023] [Indexed: 11/26/2023]
Abstract
In this research, the formation processes of CuBi2O4 films were examined using atomic force microscopy, energy dispersive analysis and X-ray diffraction analysis methods. The films were synthesized through electrochemical deposition from sulfuric acid solutions at a potential difference of 3.5 V. The duration of film growth was set to between 10 and 90 min to assess the possibility of controlled film growth and preserve the stability of their structural properties during growth over an extended period. An analysis of the data obtained by X-ray diffraction revealed that the resulting film samples are highly ordered structures with a tetragonal CuBi2O4 phase. The results of the connection between the thickness of CuBi2O4 films and strength properties depending on the time of film deposition were obtained. The results of the shielding efficiency of low-energy γ-quanta using CuBi2O4 films were obtained.
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Affiliation(s)
- Dauren B. Kadyrzhanov
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan; (D.B.K.)
| | - Malik E. Kaliyekperov
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan; (D.B.K.)
| | - Medet T. Idinov
- NJSC, Shakarim University of Semey, Semipalatinsk 071400, Kazakhstan
| | - Artem L. Kozlovskiy
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan; (D.B.K.)
- Laboratory of Solid State Physics, The Institute of Nuclear Physics, Almaty 050032, Kazakhstan
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Mousavi M, Ghasemian MB, Baharfar M, Tajik M, Chi Y, Mao G, Kalantar-Zadeh K, Tang J. Liquid Metal Interface for Two-Precursor Autogenous Deposition of Metal Telluride-Tellurium Networks. ACS Appl Mater Interfaces 2023; 15:47394-47404. [PMID: 37755698 DOI: 10.1021/acsami.3c10049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Liquid metal-electrolyte can offer electrochemically reducing interfaces for the self-deposition of low-dimensional nanomaterials. We show that implementing such interfaces from multiprecursors is a promising pathway for achieving nanostructured films with combinatory properties and functionalities. Here, we explored the liquid metal-driven interfacial growth of metal tellurides using eutectic gallium-indium (EGaIn) as the liquid metal and the cation pairs Ag+-HTeO2+ and Cu2+-HTeO2+ as the precursors. At the EGaIn-electrolyte interface, the precursors were reduced and self-deposited autogenously to form interconnected nanoparticle networks. The deposited materials consisted of metal telluride and tellurium with their relative abundance depending on the metal ion type (Ag+ and Cu2+) and the metal-to-tellurium ion ratios. When used as electrode modifiers, the synthesized materials increased the electroactive surface area of unmodified electrodes by over 10 times and demonstrated remarkable activity for model electrochemical reactions, including HexRu(III) responses and dopamine sensing. Our work reveals the promising potential of the liquid metal-templated deposition method for synthesizing complex material systems for electrochemical applications.
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Affiliation(s)
- Maedehsadat Mousavi
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Mohammad B Ghasemian
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
- School of Chemical and Biomolecular Engineering, University of Sydney (USYD), Darlington, New South Wales 2008, Australia
| | - Mahroo Baharfar
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Mohammad Tajik
- School of Chemistry, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Yuan Chi
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Guangzhao Mao
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Kourosh Kalantar-Zadeh
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
- School of Chemical and Biomolecular Engineering, University of Sydney (USYD), Darlington, New South Wales 2008, Australia
| | - Jianbo Tang
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
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Grinberg VA, Emets VV, Mayorova NA, Averin AA, Shiryaev AA. Photoelectrocatalytic Activity of ZnO-Modified Hematite Films in the Reaction of Alcohol Degradation. Int J Mol Sci 2023; 24:14046. [PMID: 37762351 PMCID: PMC10531269 DOI: 10.3390/ijms241814046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Thin-film nanocrystalline hematite electrodes were fabricated by electrochemical deposition and loaded with electrodeposited zinc oxide in various amounts. Under visible light illumination, these electrodes demonstrate high activity in the photoelectrochemical degradation of methanol, ethylene glycol and, in particular, glycerol. Results of intensity-modulated photocurrent spectroscopy show that the photoelectrocatalysis efficiency is explained by the suppression of the electron-hole pair recombination and an increase in the rate of photo-induced charge transfer. Thus, zinc oxide can be considered an effective modifying additive for hematite photoanodes.
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Affiliation(s)
- Vitali A. Grinberg
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt 31, Building 4, 119071 Moscow, Russia; (V.V.E.); (N.A.M.); (A.A.A.); (A.A.S.)
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Park JH, Wang CPJ, Lee HJ, Hong KS, Ahn JH, Cho YW, Lee JH, Seo HS, Park W, Kim SN, Park CG, Lee W, Kim TH. Uniform Gold Nanostructure Formation via Weakly Adsorbed Gold Films and Thermal Annealing for Reliable Localized Surface Plasmon Resonance-Based Detection of DNase-I. Small 2023; 19:e2302023. [PMID: 37246275 DOI: 10.1002/smll.202302023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/04/2023] [Indexed: 05/30/2023]
Abstract
Deoxyribonuclease-I (DNase-I), a representative endonuclease, is an important biomarker for the diagnosis of infectious diseases and cancer progression. However, enzymatic activity decreases rapidly ex vivo, which highlights the need for precise on-site detection of DNase-I. Here, a localized surface plasmon resonance (LSPR) biosensor that enables the simple and rapid detection of DNase-I is reported. Moreover, a novel technique named electrochemical deposition and mild thermal annealing (EDMIT) is applied to overcome signal variations. By taking advantage of the low adhesion of gold clusters on indium tin oxide substrates, both the uniformity and sphericity of gold nanoparticles are increased under mild thermal annealing conditions via coalescence and Ostwald ripening. This ultimately results in an approximately 15-fold decrease in LSPR signal variations. The linear range of the fabricated sensor is 20-1000 ng mL-1 with a limit of detection (LOD) of 127.25 pg mL-1 , as demonstrated by spectral absorbance analyses. The fabricated LSPR sensor stably measured DNase-I concentrations from samples collected from both an inflammatory bowel disease (IBD) mouse model, as well as human patients with severe COVID-19 symptoms. Therefore, the proposed LSPR sensor fabricated via the EDMIT method can be used for early diagnosis of other infectious diseases.
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Affiliation(s)
- Joon-Ha Park
- School of Integrative Engineering, Chung-Ang University, 06974, Seoul, Republic of Korea
| | - Chi-Pin James Wang
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 16419, Suwon, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 16419, Suwon, Republic of Korea
| | - Hye-Jin Lee
- Department of Chemistry, Sungkyunkwan University, 16419, Suwon, Republic of Korea
| | - Kyung Soo Hong
- Division of Pulmonology and Allergy, Department of Internal Medicine, College of Medicine, Yeungnam University, Regional Center for Respiratory Diseases, Yeungnam University Medical Center, 42415, Daegu, Republic of Korea
| | - Jung Hong Ahn
- Division of Pulmonology and Allergy, Department of Internal Medicine, College of Medicine, Yeungnam University, Regional Center for Respiratory Diseases, Yeungnam University Medical Center, 42415, Daegu, Republic of Korea
| | - Yeon-Woo Cho
- School of Integrative Engineering, Chung-Ang University, 06974, Seoul, Republic of Korea
| | - Jeong-Hyeon Lee
- School of Integrative Engineering, Chung-Ang University, 06974, Seoul, Republic of Korea
| | - Hee Seung Seo
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 16419, Suwon, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 16419, Suwon, Republic of Korea
| | - Wooram Park
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Seoburo 2066, Suwon, Gyeonggi, 16419, Republic of Korea
| | - Se-Na Kim
- Research and Development Center, MediArk Inc., Cheongju, Chungbuk, 28644, Republic of Korea
- Department of Industrial Cosmetic Science, College of Bio-Health University System, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 16419, Suwon, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), 16419, Suwon, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Wonhwa Lee
- Department of Chemistry, Sungkyunkwan University, 16419, Suwon, Republic of Korea
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 06974, Seoul, Republic of Korea
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Kang L, Yang W, Zhao L, Cui C, Cao F. Study on the Microstructure and Magnetic Properties of Nd-Fe-B/Fe-Co Composite Nanowires. Materials (Basel) 2023; 16:5541. [PMID: 37629832 PMCID: PMC10456279 DOI: 10.3390/ma16165541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/01/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023]
Abstract
To solve the problem of the low coercivity of Nd-Fe-B-based nanowires impeding their application in magnetic storage media, highly ordered Nd-Fe-B/Fe-Co composite nanowires were fabricated in an anodic alumina template by means of the alternating electrochemical deposition method. In this paper, the effect of soft and hard magnetic phase compositing on the magnetic properties of Nd-Fe-B-based nanowires was investigated, and the coercivity improvement mechanism was demonstrated. The results show that after annealing at 600 °C for 2 h, Nd-Fe-B/Fe-Co nanowires crystallize into a multiphase structure containing a hard Nd2(Fe, Co)14B phase and soft NdB4, NdB6, Fe7Nd, and Fe7Co3 phases. It is characterized that the Nd2(Fe, Co)14B phase preferentially nucleates, followed by NdB4 + NdB6 + Fe7Nd, while Fe7Co3 has been formed in as-deposited nanowires. The existence of a Nd2(Fe, Co)14B phase with high anisotropy fields, the remanence enhancement effect produced by exchange coupling between hard-soft magnetic phases, and the pinning effect between different phases make the composite nanowires approximately exhibit single hard magnetic phase characteristics with coercivity and remanence ratio as high as 4203.25 Oe and 0.89. The results indicate that synthesizing Nd-Fe-B/Fe-Co exchange-coupled composite nanowires via alternating electrodeposition is an effective way to optimize the magnetic performance of Nd-Fe-B-based nanowires.
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Affiliation(s)
- Licong Kang
- Hebei Key Laboratory of New Functional Materials, School of Material Science and Engineering, Hebei University of Technology, No. 5340, Xiping Road, Tianjin 300401, China; (L.K.); (L.Z.); (C.C.)
| | - Wei Yang
- Hebei Key Laboratory of New Functional Materials, School of Material Science and Engineering, Hebei University of Technology, No. 5340, Xiping Road, Tianjin 300401, China; (L.K.); (L.Z.); (C.C.)
| | - Lichen Zhao
- Hebei Key Laboratory of New Functional Materials, School of Material Science and Engineering, Hebei University of Technology, No. 5340, Xiping Road, Tianjin 300401, China; (L.K.); (L.Z.); (C.C.)
| | - Chunxiang Cui
- Hebei Key Laboratory of New Functional Materials, School of Material Science and Engineering, Hebei University of Technology, No. 5340, Xiping Road, Tianjin 300401, China; (L.K.); (L.Z.); (C.C.)
| | - Feng Cao
- State Nuclear Power Demonstration Plant Company Limited, No. 666, Fujia Road, Weihai 264200, China;
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Ungureanu E, Vladescu (Dragomir) A, Parau AC, Mitran V, Cimpean A, Tarcolea M, Vranceanu DM, Cotrut CM. In Vitro Evaluation of Ag- and Sr-Doped Hydroxyapatite Coatings for Medical Applications. Materials (Basel) 2023; 16:5428. [PMID: 37570133 PMCID: PMC10419960 DOI: 10.3390/ma16155428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/12/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023]
Abstract
Osseointegration plays the most important role in the success of an implant. One of the applications of hydroxyapatite (HAp) is as a coating for metallic implants due to its bioactive nature, which improves osteoconduction. The purpose of this research was to assess the in vitro behavior of HAp undoped and doped with Ag and/or Sr obtained by galvanostatic pulsed electrochemical deposition. The coatings were investigated in terms of chemical bonds, contact angle and surface free energy, electrochemical behavior, in vitro biomineralization in acellular media (SBF and PBS), and biocompatibility with preosteoblasts cells (MC3T3-E1 cell line). The obtained results highlighted the beneficial impact of Ag and/or Sr on the HAp. The FTIR spectra confirmed the presence of hydroxyapatite within all coatings, while in terms of wettability, the contact angle and surface free energy investigations showed that all surfaces were hydrophilic. The in vitro behavior of MC3T3-E1 indicated that the presence of Sr in the HAp coatings as a unique doping agent or in combination with Ag elicited improved cytocompatibility in terms of cell proliferation and osteogenic differentiation. Therefore, the composite HAp-based coatings showed promising potential for bone regeneration applications.
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Affiliation(s)
- Elena Ungureanu
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Independentei Street, 060042 Bucharest, Romania; (E.U.); (M.T.)
| | - Alina Vladescu (Dragomir)
- Department for Advanced Surface Processing and Analysis by Vacuum Technologies, National Institute of Research and Development for Optoelectronics—INOE 2000, 409 Atomistilor Street, 77125 Magurele, Romania (A.C.P.)
| | - Anca C. Parau
- Department for Advanced Surface Processing and Analysis by Vacuum Technologies, National Institute of Research and Development for Optoelectronics—INOE 2000, 409 Atomistilor Street, 77125 Magurele, Romania (A.C.P.)
| | - Valentina Mitran
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Independentei Street, 050095 Bucharest, Romania; (V.M.); (A.C.)
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Independentei Street, 050095 Bucharest, Romania; (V.M.); (A.C.)
| | - Mihai Tarcolea
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Independentei Street, 060042 Bucharest, Romania; (E.U.); (M.T.)
| | - Diana M. Vranceanu
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Independentei Street, 060042 Bucharest, Romania; (E.U.); (M.T.)
| | - Cosmin M. Cotrut
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Independentei Street, 060042 Bucharest, Romania; (E.U.); (M.T.)
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11
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Nagaura T, Ashok A, Alowasheeir A, Vasanth A, Han M, Yamauchi Y. Mesoporous Semiconductive Bi 2Se 3 Films. Nano Lett 2023. [PMID: 37289968 DOI: 10.1021/acs.nanolett.3c00183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bi2Se3 is a semiconductive material possessing a bandgap of 0.3 eV, and its unique band structure has paved the way for diverse applications. Herein, we demonstrate a robust platform for synthesizing mesoporous Bi2Se3 films with uniform pore sizes via electrodeposition. Block copolymer micelles act as soft templates in the electrolyte to create a 3D porous nanoarchitecture. By controlling the length of the block copolymer, the pore size is adjusted to 9 and 17 nm precisely. The nonporous Bi2Se3 film exhibits a tunneling current in a vertical direction of 52.0 nA, but upon introducing porosity (9 nm pores), the tunneling current increases significantly to 684.6 nA, suggesting that the conductivity of Bi2Se3 films is dependent on the pore structure and surface area. The abundant porous architecture exposes a larger surface area of Bi2Se3 to the surrounding air within the same volume, thereby augmenting its metallic properties.
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Affiliation(s)
- Tomota Nagaura
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Aditya Ashok
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Azhar Alowasheeir
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Arya Vasanth
- Amrita School for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - Minsu Han
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Yusuke Yamauchi
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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12
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Khurshid H, Yoosuf R, Zafar H, Attanayake SB, Azeem M, Issa BA, Anjum DH, Srikanth H. From multi-segmented to core/shell nanorods: morphology evolution in Fe-Au nanorods by tuning fabrication conditions. Nanotechnology 2023; 34:185602. [PMID: 36716488 DOI: 10.1088/1361-6528/acb715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Aiming to obtain hybrid magneto-plasmonic nanostructures, we have developed multisegmented and core/shell structured Fe-Au nanorods using template assisted electrochemical deposition. A facile method of tuning the growth pattern of multisegmented nanorods into core/shell structured is demonstrated. With a precise control of current density and deposition time, a brick-stacked wire like growth led to the formation of hollow nanotubes that could be further tuned to multilayered hollow nanotubes and core/shell structured nanorods. TEM imaging and STEM-EELS technique were used to explore the morphology, microstructure and the distribution of Au and Fe in the nanorods. The easy magnetization direction was found to be perpendicular to the nanorods' growth direction in the segmented nanorods. On the other hand, core/shell nanorods exhibited isotropic behavior. Our findings provide deeper insights into the fabrication of hybrid nanorods and the opportunity to tune the fabrication method to vary their morphology accordingly. Such studies will benefit design of hybrid nanorods with specific morphologies and physical properties and hence their integration into sensing, spintronics and other potential biomedical and technological applications.
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Affiliation(s)
- Hafsa Khurshid
- Department of Applied Physics and Astronomy, University of Sharjah, United Arab Emirates
- Department of Medical Diagnostic Imaging, University of Sharjah, United Arab Emirates
| | - Rahana Yoosuf
- Department of Applied Physics and Astronomy, University of Sharjah, United Arab Emirates
| | - Humaira Zafar
- Department of Physics, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Supun B Attanayake
- Department of Physics, University of South Florida, Tampa FL, United States of America
| | - Muhammad Azeem
- Department of Applied Physics and Astronomy, University of Sharjah, United Arab Emirates
| | - Bashar A Issa
- Department of Medical Diagnostic Imaging, University of Sharjah, United Arab Emirates
| | - Dalaver H Anjum
- Department of Physics, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Hariharan Srikanth
- Department of Physics, University of South Florida, Tampa FL, United States of America
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13
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Mkawi EM, Al-Hadeethi Y, Arkook B, Bekyarova E. Impact of 1,8-Diiodooctane (DIO) Additive on the Active Layer Properties of Cu 2ZnSnS 4 Kesterite Thin Films Prepared by Electrochemical Deposition for Photovoltaic Applications. Materials (Basel) 2023; 16:1659. [PMID: 36837288 PMCID: PMC9965610 DOI: 10.3390/ma16041659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/02/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Kesterite Cu2ZnSnS4 (CZTS) thin films using various 1,8-diiodooctane (DIO) polymer additive concentrations were fabricated by the electrochemical deposition method. The optical, electrical, morphological, and structural properties of the CZTS thin films synthesized using different concentrations of 5 mg/mL, 10 mg/mL, 15 mg/mL, and 20 mg/mL were investigated using different techniques. Cyclic voltammetry exhibited three cathodic peaks at -0.15 V, -0.54 V, and -0.73 V, corresponding to the reduction of Cu2+, Sn2+, Sn2+, and Zn2+ metal ions, respectively. The analysis of the X-ray diffraction (XRD) pattern indicated the formation of the pure kesterite crystal structure, and the Raman spectra showed pure CZTS with the A1 mode of vibration. Field emission scanning electron microscopy (FE-SEM) indicated that the films are well grown, with compact, crack-free, and uniform deposition and a grain size of approximately 4 µm. For sample DIO-20 mg/mL, the elemental composition of the CZTS thin film was modified to Cu:Zn:Sn: and S = 24.2:13.3:12.3:50.2, which indicates a zinc-rich and copper-poor composition. The X-ray photoelectron spectroscopy (XPS) results confirmed the existence of Cu, Sn, Zn, and S elements and revealed the element oxidation states. The electrochemical deposition synthesis increased the absorption of the CZTS film to more than 104 cm-1 with a band gap between 1.62 eV and 1.51 eV. Finally, the photovoltaic properties of glass/CZTS/CdS/n-ZnO/aluminum-doped zinc oxide (AZO)/Ag solar cells were investigated. The best-performing photovoltaic device, with a DIO concentration of 20 mg/mL, had a short-circuit current density of 16.44 mA/cm2, an open-circuit voltage of 0.465 V, and a fill factor of 64.3%, providing a conversion efficiency of 4.82%.
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Affiliation(s)
- Elmoiz Merghni Mkawi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Nanotechnology, King Abdulaziz University, Jeddah 42806, Saudi Arabia
| | - Yas Al-Hadeethi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Bassim Arkook
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Elena Bekyarova
- Department of Chemistry, University of California at Riverside, Riverside, CA 92521, USA
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14
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Guazzelli L, Marrucho IM, Mu T, Banerjee T. Editorial: Ionic liquids and deep eutectic solvents: Two contrasting options or opposite sides of the same coin? Front Chem 2023; 11:1169688. [PMID: 36923689 PMCID: PMC10009219 DOI: 10.3389/fchem.2023.1169688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
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15
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Li J, Li TT, Zhang Y, Shiu BC, Lin JH, Lou CW, Liu L. A two-step strategy to deposit a hydroxyapatite coating on polydopamine-coated polymer fibers. Biomed Mater 2022; 18. [PMID: 36576095 DOI: 10.1088/1748-605x/aca85a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 12/02/2022] [Indexed: 12/03/2022]
Abstract
As the main inorganic component of human bones and teeth, hydroxyapatite (HA), with excellent bioactivity and biocompatibility, shows great potential in the bone tissue engineering field. Marine mussel-inspired polydopamine (PDA) possesses unique functional groups and thus can absorb the calcium ions from extracellular fluid, thereby triggering the precipitation of HA. This study is based on a two-step strategy. Using the chemical activity of PDA, polyvinyl alcohol/polylactic acid (PVA/PLA) braids were coated with a PDA layer that served as a template for the electrochemical deposition of a HA layer. The test results indicate that the resulting HA crystals were assembled on the polymer fibers in an urchin-like mannerwith a stratified structure. Subsequently, the HA/PDA-PVA/PLA braided bone scaffolds were immersed in simulated body fluid for ten days, after which the bone scaffolds were found to be completely coated with HA, indicating a good biomineralization capability. Cell activity of HA/PDA-PVA/PLA scaffolded by dopamine-assisted electrodeposition was 178.8% than that of PVA/PLA braids. This HA coating layer inspired by biochemical strategies may be useful in the field of bone tissue engineering.
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Affiliation(s)
- Jiaxin Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China
| | - Ting-Ting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China.,Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, People's Republic of China
| | - Ying Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China
| | - Bing-Chiuan Shiu
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, People's Republic of China
| | - Jia-Horng Lin
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China.,Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City 407102, Taiwan.,School of Chinese Medicine, China Medical University, Taichung City 404333, Taiwan.,Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Qingdao 266071, People's Republic of China
| | - Ching-Wen Lou
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China.,Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Qingdao 266071, People's Republic of China.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung City 413305, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City 404333, Taiwan
| | - Liyan Liu
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China
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16
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Noori F, Almasi Kashi M, Montazer AH. Current density-induced emergence of soft and hard magnetic phases in Fe nanowire arrays. Nanotechnology 2022; 34:075701. [PMID: 36347028 DOI: 10.1088/1361-6528/aca0f9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The capability of generating magnetically soft and hard phases in a material is important in many aspects, ranging from basic science to applications. Here, the emergence of soft and hard magnetic phases is reported in Fe nanowire (NW) arrays with a diameter of 35 nm fabricated by using a pulsed electrochemical deposition method in porous aluminum oxide templates under different current density (Cd) values in the range of 25-100 mA cm-2. The variation ofCdinfluences the grain size, crystallinity, electrodeposition efficiency and length of the Fe NWs, as characterized by x-ray diffraction, high-resolution transmission electron microscopy, vibrating sample magnetometry and field-emission scanning electron microscopy. IncreasingCdfrom 25 to 80 mA cm-2results in a significant decrease in coercivity and squareness from 1590 to 900 Oe and 0.9 to 0.5, respectively, inducing the soft and hard phases along the length of Fe NWs. Further increasing theCdleads to the separation of the phases, as evidenced by first-order reversal curve analysis. From a theoretical aspect, the emergence of the soft phase may lead to the occurrence of the fanning reversal mode in the NWs, for which there is no precedent in previous experimental investigations.
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Affiliation(s)
- Farzaneh Noori
- Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan 87317_53153, Iran
| | - Mohammad Almasi Kashi
- Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan 87317_53153, Iran
- Department of Physics, University of Kashan, Kashan 87317_53153, Iran
| | - Amir H Montazer
- Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan 87317_53153, Iran
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17
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Moise CC, Mihai GV, Anicăi L, Monaico EV, Ursaki VV, Enăchescu M, Tiginyanu IM. Electrochemical Deposition of Ferromagnetic Ni Nanoparticles in InP Nanotemplates Fabricated by Anodic Etching Using Environmentally Friendly Electrolyte. Nanomaterials (Basel) 2022; 12:3787. [PMID: 36364561 PMCID: PMC9656686 DOI: 10.3390/nano12213787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Porous InP templates possessing a thickness of up to 100 µm and uniformly distributed porosity were prepared by anodic etching of InP substrates exhibiting different electrical conductivities, involving an environmentally friendly electrolyte. Ni nanoparticles were successfully directly deposited by pulsed electroplating into prefabricated InP templates without any additional deposition of intermediary layers. The parameters of electrodeposition, including the pulse amplitude, pulse width and interval between pulses, were optimized to reach a uniform metal deposition covering the inner surface of the nanopores. The electrochemical dissolution of n-InP single crystals was investigated by measuring the current-voltage dependences, while the Ni-decorated n-InP templates have been characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The proposed technology is expected to be of interest for sensing and photocatalytic applications, as well as for the exploration of their plasmonic and magnetic properties.
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Affiliation(s)
- Călin Constantin Moise
- Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
- S.C. NanoPRO START MC S.R.L., Mitropolit Antim Ivireanu Street 40, 110310 Pitesti, Romania
| | - Geanina Valentina Mihai
- Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Liana Anicăi
- Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Eduard V. Monaico
- National Center for Materials Study and Testing, Technical University of Moldova, Bd. Stefan cel Mare 168, 2004 Chisinau, Moldova
| | - Veaceslav V. Ursaki
- National Center for Materials Study and Testing, Technical University of Moldova, Bd. Stefan cel Mare 168, 2004 Chisinau, Moldova
- Academy of Sciences of Moldova, 2001 Chisinau, Moldova
| | - Marius Enăchescu
- Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
| | - Ion M. Tiginyanu
- National Center for Materials Study and Testing, Technical University of Moldova, Bd. Stefan cel Mare 168, 2004 Chisinau, Moldova
- Academy of Sciences of Moldova, 2001 Chisinau, Moldova
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18
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Chiang JL, Yadlapalli BK, Chen MI, Wuu DS. A Review on Gallium Oxide Materials from Solution Processes. Nanomaterials (Basel) 2022; 12:3601. [PMID: 36296792 PMCID: PMC9609084 DOI: 10.3390/nano12203601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/08/2022] [Accepted: 10/09/2022] [Indexed: 06/16/2023]
Abstract
Gallium oxide (Ga2O3) materials can be fabricated via various methods or processes. It is often mentioned that it possesses different polymorphs (α-, β-, γ-, δ- and ε-Ga2O3) and excellent physical and chemical properties. The basic properties, crystalline structure, band gap, density of states, and other properties of Ga2O3 will be discussed in this article. This article extensively discusses synthesis of pure Ga2O3, co-doped Ga2O3 and Ga2O3-metal oxide composite and Ga2O3/metal oxide heterostructure nanomaterials via solution-based methods mainly sol-gel, hydrothermal, chemical bath methods, solvothermal, forced hydrolysis, reflux condensation, and electrochemical deposition methods. The influence of the type of precursor solution and the synthesis conditions on the morphology, size, and properties of final products is thoroughly described. Furthermore, the applications of Ga2O3 will be introduced and discussed from these solution processes, such as deep ultraviolet photodetector, gas sensors, pH sensors, photocatalytic and photodegradation, and other applications. In addition, research progress and future outlook are identified.
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Affiliation(s)
- Jung-Lung Chiang
- Ph.D. Program, Prospective Technology of Electrical Engineering and Computer Science, National Chin-Yi University of Technology, Taichung 41170, Taiwan
| | - Bharath Kumar Yadlapalli
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 40227, Taiwan
| | - Mu-I Chen
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 40227, Taiwan
| | - Dong-Sing Wuu
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 40227, Taiwan
- Department of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, Taiwan
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan
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19
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Lupan C, Mishra AK, Wolff N, Drewes J, Krüger H, Vahl A, Lupan O, Pauporté T, Viana B, Kienle L, Adelung R, de Leeuw NH, Hansen S. Nanosensors Based on a Single ZnO:Eu Nanowire for Hydrogen Gas Sensing. ACS Appl Mater Interfaces 2022; 14:41196-41207. [PMID: 36044354 PMCID: PMC9753046 DOI: 10.1021/acsami.2c10975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/18/2022] [Indexed: 05/26/2023]
Abstract
Fast detection of hydrogen gas leakage or its release in different environments, especially in large electric vehicle batteries, is a major challenge for sensing applications. In this study, the morphological, structural, chemical, optical, and electronic characterizations of ZnO:Eu nanowire arrays are reported and discussed in detail. In particular, the influence of different Eu concentrations during electrochemical deposition was investigated together with the sensing properties and mechanism. Surprisingly, by using only 10 μM Eu ions during deposition, the value of the gas response increased by a factor of nearly 130 compared to an undoped ZnO nanowire and we found an H2 gas response of ∼7860 for a single ZnO:Eu nanowire device. Further, the synthesized nanowire sensors were tested with ultraviolet (UV) light and a range of test gases, showing a UV responsiveness of ∼12.8 and a good selectivity to 100 ppm H2 gas. A dual-mode nanosensor is shown to detect UV/H2 gas simultaneously for selective detection of H2 during UV irradiation and its effect on the sensing mechanism. The nanowire sensing approach here demonstrates the feasibility of using such small devices to detect hydrogen leaks in harsh, small-scale environments, for example, stacked battery packs in mobile applications. In addition, the results obtained are supported through density functional theory-based simulations, which highlight the importance of rare earth nanoparticles on the oxide surface for improved sensitivity and selectivity of gas sensors, even at room temperature, thereby allowing, for instance, lower power consumption and denser deployment.
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Affiliation(s)
- Cristian Lupan
- Center
for Nanotechnology and Nanosensors, Department of Microelectronics
and Biomedical Engineering, Faculty of Computers, Informatics and
Microelectronics, Technical University of
Moldova, 168 Stefan cel Mare str., MD-2004 Chisinau, Republic of Moldova
| | - Abhishek Kumar Mishra
- Department
of Physics, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES),
Energy Acres Building, Bidholi, Dehradun, 248007 Uttrakhand, India
| | - Niklas Wolff
- Chair
for Synthesis and Real Structure, Faculty of Engineering, Department
of Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
| | - Jonas Drewes
- Chair
for Multicomponent Materials, Faculty of Engineering, Department of
Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
| | - Helge Krüger
- Functional
Nanomaterials, Faculty of Engineering, Department of Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
| | - Alexander Vahl
- Chair
for Multicomponent Materials, Faculty of Engineering, Department of
Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
| | - Oleg Lupan
- Center
for Nanotechnology and Nanosensors, Department of Microelectronics
and Biomedical Engineering, Faculty of Computers, Informatics and
Microelectronics, Technical University of
Moldova, 168 Stefan cel Mare str., MD-2004 Chisinau, Republic of Moldova
- Functional
Nanomaterials, Faculty of Engineering, Department of Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
- PSL Université,
Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris (IRCP), 11 rue P. et M. Curie, F, 75005 Paris, France
- Department
of Physics, University of Central Florida, Florida, Orlando, Florida 32816-2385, United States
| | - Thierry Pauporté
- PSL Université,
Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris (IRCP), 11 rue P. et M. Curie, F, 75005 Paris, France
| | - Bruno Viana
- PSL Université,
Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris (IRCP), 11 rue P. et M. Curie, F, 75005 Paris, France
| | - Lorenz Kienle
- Chair
for Synthesis and Real Structure, Faculty of Engineering, Department
of Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
| | - Rainer Adelung
- Functional
Nanomaterials, Faculty of Engineering, Department of Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
| | - Nora H de Leeuw
- School
of Chemistry, University of Leeds, Leeds LS2 9JT, United Kingdom
- Department
of Earth Sciences, Utrecht University, Princetonlaan 8a, 3584 CB Utrecht, The Netherlands
| | - Sandra Hansen
- Functional
Nanomaterials, Faculty of Engineering, Department of Materials Science, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany
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20
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Deng Y, Zheng J, Zhao Q, Yin J, Biswal P, Hibi Y, Jin S, Archer LA. Highly Reversible Sodium Metal Battery Anodes via Alloying Heterointerfaces. Small 2022; 18:e2203409. [PMID: 35957538 DOI: 10.1002/smll.202203409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/27/2022] [Indexed: 06/15/2023]
Abstract
As a promising pathway toward low-cost, long-duration energy storage, rechargeable sodium batteries are of increasing interest. Batteries that incorporate metallic sodium as anode promise a high theoretical specific capacity of 1166 mAh g-1 , and low reduction potential of -2.71 V. The high reactivity and poor electrochemical reversibility of sodium anodes render sodium metal anode (SMA) cells among the most challenging for practical implementation. Here, the failure mechanisms of Na anodes are investigated and the authors report that loss of morphological control is not the fundamental cause of failure. Rather, it is the inherently poor anchoring/root structure of electrodeposited Na to the electrode substrate that leads to poor reversibility and cell failure. Poorly anchored Na deposits are prone to break away from the current collector, producing orphaning and poor anode utilization. Thin metallic coatings in a range of chemistries are proposed and evaluated as SMA substrates. Based on thermodynamic and ion transport considerations, such substrates undergo reversible alloying reactions with Na and are hypothesized to promote good root growth-regardless of the morphology. Among the various options, Au stands out for its ability to support long Na anode lifetime and high reversibility (Coulombic Efficiency > 98%), for coating thicknesses in the range of 10-1000 nm. As a first step toward evaluating practical utility of the anodes, their performance in Na||SPAN cells with N:P ratio close to 1:1 is evaluated.
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Affiliation(s)
- Yue Deng
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Jingxu Zheng
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02129, USA
| | - Qing Zhao
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Jiefu Yin
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Prayag Biswal
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Yusuke Hibi
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Shuo Jin
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Lynden A Archer
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
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21
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Bi X, Meng L. Research on Integral Fabrication and Inner Surface Metallization of the High-Frequency Terahertz Hollow-Core Metal Rectangular Waveguide Cavity by a Combined Process Based on Wire Electrochemical Micromachining and Electrochemical Deposition. Micromachines (Basel) 2022; 13:1346. [PMID: 36014267 PMCID: PMC9412866 DOI: 10.3390/mi13081346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/16/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
With the development of fabrication technology for terahertz rectangular cavity devices, the fabrication process of integral terahertz waveguide cavities has received much attention because of its beneficial effect on improving the transmission of terahertz signals. However, smaller feature sizes, higher dimensional accuracy, and more stringent requirements for cavity surface roughness and edge radius make it difficult to manufacture terahertz waveguide cavities with a high operating frequency by using existing micro-manufacturing technology. At the same time, the smaller feature size also makes it more difficult to realize uniform metallization on the inner surface of a terahertz waveguide cavity. In this paper, a new and improved combined manufacturing process based on wire electrochemical micromachining and electrochemical deposition is proposed to realize the integral fabrication and uniform metallization of the inner surface of a high-frequency terahertz metal rectangular waveguide cavity. A detailed description and analysis of this combined process are carried out, together with corresponding experimental investigations. An integral 1.7 THz hollow-core metal rectangular waveguide cavity with an end-face size of 165.9 μm × 88.3 μm, an edge radius of less than 10 μm, an internal bottom surface roughness of less than 0.10 μm, and an internal side surface roughness of less than 0.40 μm was manufactured, and high-quality metallization of its inner surface was also achieved.
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Affiliation(s)
- Xiaolei Bi
- School of Mechanical Engineering, Henan Institute of Technology, Xinxiang 453003, China
| | - Lingchao Meng
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China
- School of Civil Aviation, Northwestern Polytechnical University, Xi’an 710072, China
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22
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Boukhoubza I, Matei E, Jorio A, Enculescu M, Enculescu I. Electrochemical Deposition of ZnO Nanowires on CVD-Graphene/Copper Substrates. Nanomaterials (Basel) 2022; 12:2858. [PMID: 36014723 PMCID: PMC9415633 DOI: 10.3390/nano12162858] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
ZnO nanostructures were electrochemically synthesized on Cu and on chemical vapor deposited (CVD)-graphene/Cu electrodes. The deposition was performed at different electrode potentials ranging from -0.8 to -1.2 V, employing a zinc nitrate bath, and using voltametric and chronoamperometric techniques. The effects of the electrode nature and of the working electrode potential on the structural, morphological, and optical properties of the ZnO structures were investigated. It was found that all the samples crystallize in hexagonal wurtzite structure with a preferential orientation along the c-axis. Scanning electron microscopy (SEM) images confirm that the presence of a graphene covered electrode led to the formation of ZnO nanowires with a smaller diameter compared with the deposition directly on copper surface. The photoluminescence (PL) measurements revealed that the ZnO nanowires grown on graphene/Cu exhibit stronger emission compared to the nanowires grown on Cu. The obtained results add another possibility of tailoring the properties of such nanostructured films according to the specific functionality required.
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Affiliation(s)
- Issam Boukhoubza
- Group of Nanomaterials and Renewable Energies, Laboratory of Solid State Physics, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, P.O. Box 1796, Atlas Fez 30000, Morocco
| | - Elena Matei
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
| | - Anouar Jorio
- Group of Nanomaterials and Renewable Energies, Laboratory of Solid State Physics, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, P.O. Box 1796, Atlas Fez 30000, Morocco
| | - Monica Enculescu
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
| | - Ionut Enculescu
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania
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23
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Nagaura T, Li J, Fernando JFS, Ashok A, Alowasheeir A, Nanjundan AK, Lee S, Golberg DV, Na J, Yamauchi Y. Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu 2 Se as a Potential High-Rate Anode for Sodium-Ion Battery. Small 2022; 18:e2106629. [PMID: 35905492 DOI: 10.1002/smll.202106629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Nanostructured copper selenide (Cu2 Se) attracts much interest as it shows outstanding performance as thermoelectric, photo-thermal, and optical material. The mesoporous structure is also a promising morphology to obtain better performance for electrochemical and catalytic applications, thanks to its high surface area. A simple one-step electrochemical method is proposed for mesoporous chalcogenides synthesis. The synthesized Cu2 Se material has two types of mesopores (9 and 18 nm in diameter), which are uniformly distributed inside the flakes. These materials are also implemented for sodium (Na) ion battery (NIB) anode as a proof of concept. The electrode employing the mesoporous Cu2 Se exhibits superior and more stable specific capacity as a NIB anode compared to the non-porous samples. The electrode also exhibits excellent rate tolerance at each current density, from 100 to 1000 mA g-1 . It is suggested that the mesoporous structure is advantageous for the insertion of Na ions inside the flakes. Electrochemical analysis indicates that the mesoporous electrode possesses more prominent diffusion-controlled kinetics during the sodiation-desodiation process, which contributes to the improvement of Na-ion storage performance.
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Affiliation(s)
- Tomota Nagaura
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Jinliang Li
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Materials, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
| | - Joseph F S Fernando
- Centre for Materials Science and School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Str., Brisbane, QLD, 4000, Australia
| | - Aditya Ashok
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Azhar Alowasheeir
- JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Ashok Kumar Nanjundan
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Sukho Lee
- Research and Development (R&D) Division, Green Energy Institute, Mokpo, Jeollanamdo, 58656, Republic of Korea
| | - Dmitri V Golberg
- Centre for Materials Science and School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Str., Brisbane, QLD, 4000, Australia
| | - Jongbeom Na
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- Research and Development (R&D) Division, Green Energy Institute, Mokpo, Jeollanamdo, 58656, Republic of Korea
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, 4072, Australia
- JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia
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24
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Ramanavicius S, Ramanavicius A. Development of molecularly imprinted polymer based phase boundaries for sensors design (review). Adv Colloid Interface Sci 2022; 305:102693. [PMID: 35609398 DOI: 10.1016/j.cis.2022.102693] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/15/2022] [Accepted: 05/04/2022] [Indexed: 12/18/2022]
Abstract
Achievements in polymer chemistry enables to design artificial phase boundaries modified by imprints of selected molecules and some larger structures. These structures seem very useful for the design of new materials suitable for affinity chromatography and sensors. In this review, we are overviewing the synthesis of molecularly imprinted polymers (MIPs) and the applicability of these MIPs in the design of affinity sensors. Such MIP-based layers or particles can be used as analyte-recognizing parts for sensors and in some cases they can replace very expensive compounds (e.g.: antibodies, receptors etc.), which are recognizing analyte. Many different polymers can be used for the formation of MIPs, but conducing polymers shows the most attractive capabilities for molecular-imprinting by various chemical compounds. Therefore, the application of conducting polymers (e.g.: polypyrrole, polyaniline, polythiophene, poly(3,4-ethylenedioxythiophene), and ortho-phenylenediamine) seems very promising. Polypyrrole is one of the most suitable for the development of MIP-based structures with molecular imprints by analytes of various molecular weights. Overoxiation of polypyrrole enables to increase the selectivity of polypyrrole-based MIPs. Methods used for the synthesis of conducting polymer based MIPs are overviewed. Some methods, which are applied for the transduction of analytical signal, are discussed, and challenges and new trends in MIP-technology are foreseen.
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25
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Lim T, Kim M, Akbarian A, Kim J, Tresco PA, Zhang H. Conductive Polymer Enabled Biostable Liquid Metal Electrodes for Bioelectronic Applications. Adv Healthc Mater 2022; 11:e2102382. [PMID: 35112800 DOI: 10.1002/adhm.202102382] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/14/2022] [Indexed: 12/11/2022]
Abstract
Gallium (Ga)-based liquid metal materials have emerged as a promising material platform for soft bioelectronics. Unfortunately, Ga has limited biostability and electrochemical performance under physiological conditions, which can hinder the implementation of its use in bioelectronic devices. Here, an effective conductive polymer deposition strategy on the liquid metal surface to improve the biostability and electrochemical performance of Ga-based liquid metals for use under physiological conditions is demonstrated. The conductive polymer [poly(3,4-ethylene dioxythiophene):tetrafluoroborate]-modified liquid metal surface significantly outperforms the liquid metal.based electrode in mechanical, biological, and electrochemical studies. In vivo action potential recordings in behaving nonhuman primate and invertebrate models demonstrate the feasibility of using liquid metal electrodes for high-performance neural recording applications. This is the first demonstration of single-unit neural recording using Ga-based liquid metal bioelectronic devices to date. The results determine that the electrochemical deposition of conductive polymer over liquid metal can improve the material properties of liquid metal electrodes for use under physiological conditions and open numerous design opportunities for next-generation liquid metal-based bioelectronics.
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Affiliation(s)
- Taehwan Lim
- Department of Chemical Engineering University of Utah Salt Lake City Utah 84112 USA
| | - Minju Kim
- Department of Mechanical Engineering University of Utah Salt Lake City Utah 84112 USA
| | - Amir Akbarian
- Department of Ophthalmology and Visual Science University of Utah Salt Lake City Utah 84112 USA
| | - Jungkyu Kim
- Department of Mechanical Engineering University of Utah Salt Lake City Utah 84112 USA
| | - Patrick A. Tresco
- Department of Biomedical Engineering University of Utah Salt Lake City Utah 84112 USA
| | - Huanan Zhang
- Department of Chemical Engineering University of Utah Salt Lake City Utah 84112 USA
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26
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Huang T, Yu Z, Yu Q, Chen Y, Jiang Z, Wang Y, Yang G. Electrochemical deposition of lithium coating on titanium implant with enhanced early stage osseointegration. J Biomed Mater Res B Appl Biomater 2022; 110:2399-2410. [PMID: 35604032 DOI: 10.1002/jbm.b.35085] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 04/19/2022] [Accepted: 04/30/2022] [Indexed: 11/10/2022]
Abstract
Recently, a large number of studies have reported that lithium (Li) displayed a positive effect on osteogenesis. However, only a few studies have investigated the Li-incorporated surfaces through electrochemical deposition. In this study, electrochemical deposition was conducted on a CHI600E electrochemical workstation. The characterization of electrochemical deposition (ECD) and ECD-Li surfaces were detected by field-emission scanning electron microscopy with energy-dispersive spectrometer. rBMSCs were cultured on two surfaces for subsequent adhesion, proliferation and live/dead assay. To evaluate the effects of Li-incorporated implants by electrochemical deposition on osseointegration in vivo, teeth extraction of two premolars and one first molar in bilateral mandible were performed on six male beagle dogs. After 3 months, ZDI and ZDI-Li implants were inserted into the bilateral mandible of each beagle dog. Micro Computed Tomography (Micro-CT) and hard tissue sectioning analysis were carried out to evaluate the osseointegration at 4- and 8-weeks post-implantation. Results showed that ECD-Li surface promoted adhesion and proliferation of BMSCs in the early stage. More importantly, through micro-CT analysis, the values of bone volume/total volume (BV/TV) (0.374 ± 0.015), bone-implant contact (BIC) (0.831 ± 0.025), and Tb.Th (0.412 ± 0.007) in ZDI-Li group was significantly higher than those of ZDI group (0.302 ± 0.009, 0.700 ± 0.023, 0.353 ± 0.001, p < .01) at 4 weeks. Similarly, ZDI-Li group manifested more bone contact with the implant surfaces at 4 weeks based on hard tissue sectioning analysis, whereas no significant difference was detected between two groups at 8 weeks. Therefore, incorporating Li into implant surface through ECD could enhance early osseointegration in vivo.
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Affiliation(s)
- Tingben Huang
- Department of Implantology, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhou Yu
- Department of Implantology, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Qiong Yu
- Department of Implantology, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Yitong Chen
- Department of Implantology, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhiwei Jiang
- Department of Implantology, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Ying Wang
- Department of Oral Medicine, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Guoli Yang
- Department of Implantology, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, China
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27
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Sasaki Y, Mizushima A, Mita Y, Yoshida K, Kuwabara A, Ikuhara Y. Design and Fabrication of an Electrochemical Chip for Liquid-Phase Transmission Electron Microscopy. Microscopy (Oxf) 2022; 71:238-241. [PMID: 35512147 DOI: 10.1093/jmicro/dfac023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/25/2022] [Accepted: 05/03/2022] [Indexed: 11/13/2022] Open
Abstract
Liquid-phase transmission electron microscopy (LP-TEM) can be used with an electrochemical chip (e-chip) to observe electrochemical reactions in a liquid in situ. The design of electrodes on an e-chip fabricated using microelectromechanical system (MEMS) technology cannot be easily changed. Here, we report a newly designed e-chip and its fabrication process. Electrodes with a desired shape were fabricated with various metals via an additional step of vacuum deposition onto our e-chip with a shadow mask. For precise control of the electrochemical reactions in LP-TEM, optimization of the electrode shape and material is critical.
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Affiliation(s)
- Yuki Sasaki
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya 456-8587, Japan
| | - Ayako Mizushima
- Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yoshio Mita
- Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kaname Yoshida
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya 456-8587, Japan
| | - Akihide Kuwabara
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya 456-8587, Japan
| | - Yuichi Ikuhara
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya 456-8587, Japan.,Institute of Engineering Innovation, School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
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28
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Han E, Zhang M, Pan Y, Cai J. Electrochemical Self-Assembled Gold Nanoparticle SERS Substrate Coupled with Diazotization for Sensitive Detection of Nitrite. Materials (Basel) 2022; 15:ma15082809. [PMID: 35454502 PMCID: PMC9028913 DOI: 10.3390/ma15082809] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 03/31/2022] [Accepted: 04/06/2022] [Indexed: 01/16/2023]
Abstract
The accurate determination of nitrite in food samples is of great significance for ensuring people's health and safety. Herein, a rapid and low-cost detection method was developed for highly sensitive and selective detection of nitrite based on a surface-enhanced Raman scattering (SERS) sensor combined with electrochemical technology and diazo reaction. In this work, a gold nanoparticle (AuNP)/indium tin oxide (ITO) chip as a superior SERS substrate was obtained by electrochemical self-assembled AuNPs on ITO with the advantages of good uniformity, high reproducibility, and long-time stability. The azo compounds generated from the diazotization-coupling reaction between nitrite, 4-aminothiophenol (4-ATP), and N-(1-naphthyl) ethylenediamine dihydrochloride (NED) in acid condition were further assembled on the surface of AuNP/ITO. The detection of nitrite was realized using a portable Raman spectrometer based on the significant SERS enhancement of azo compounds assembled on the AuNP/ITO chip. Many experimental conditions were optimized such as the time of electrochemical self-assembly and the concentration of HAuCl4. Under the optimal conditions, the designed SERS sensor could detect nitride in a large linear range from 1.0 × 10-6 to 1.0 × 10-3 mol L-1 with a low limit of detection of 0.33 μmol L-1. Additionally, nitrite in real samples was further analyzed with a recovery of 95.1-109.7%. Therefore, the proposed SERS method has shown potential application in the detection of nitrite in complex food samples.
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Affiliation(s)
- En Han
- Correspondence: (E.H.); (J.C.)
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29
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Islam S, Mia MM, Shah SS, Naher S, Shaikh MN, Aziz MA, Ahammad AJS. Recent Advancements in Electrochemical Deposition of Metal-Based Electrode Materials for Electrochemical Supercapacitors. CHEM REC 2022; 22:e202200013. [PMID: 35313076 DOI: 10.1002/tcr.202200013] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/07/2022] [Accepted: 03/07/2022] [Indexed: 12/11/2022]
Abstract
The demand for energy storage devices with high energy and power densities has increased tremendously in this rapidly growing world. Conventional capacitors, fuel cells, and lithium-ion batteries have been used as energy storage devices for the long term. However, supercapacitors are one of the most promising energy storage devices because of their high specific capacitance, high power density, and longer cycle life. Recent research has focused on synthesizing transition-metal oxides/hydroxides, carbon materials, and conducting polymers as supercapacitor electrode materials. The performance of supercapacitors can be improved by altering electrolytes, electrode materials, current collectors, experimental temperatures, and film thickness. Thousands of papers on supercapacitors have already been published, reflecting the significance and elucidating how much demanding such energy storage devices for this fast-growing generation. This review aims to illustrate the electrode materials loaded on various conductive substrates by electrochemical deposition employed for supercapacitors to provide broad knowledge on synthetic pathways, which will pave the way for future research. We also discussed the basic parameters involved in supercapacitor studies and the advantages of the electrochemical deposition techniques through literature analysis. Finally, future trends and directions on exploring metals/metal composites toward designing and constructing viable, high-class, and even newly featured flexible energy storage materials, electrodes, and systems are presented.
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Affiliation(s)
- Santa Islam
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
| | - Md Mithu Mia
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
| | - Syed Shaheen Shah
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia.,Physics Department, King Fahd University of Petroleum & Minerals, KFUPM Box 5047, Dhahran, 31261, Saudi Arabia
| | - Shamsun Naher
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
| | - M Nasiruzzaman Shaikh
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia
| | - Md Abdul Aziz
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia.,K.A.CARE Energy Research & Innovation Center, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - A J Saleh Ahammad
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
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30
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Ramanavičius S, Morkvėnaitė-Vilkončienė I, Samukaitė-Bubnienė U, Ratautaitė V, Plikusienė I, Viter R, Ramanavičius A. Electrochemically Deposited Molecularly Imprinted Polymer-Based Sensors. Sensors (Basel) 2022; 22:1282. [PMID: 35162027 DOI: 10.3390/s22031282] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/26/2022] [Accepted: 02/02/2022] [Indexed: 12/10/2022]
Abstract
This review is dedicated to the development of molecularly imprinted polymers (MIPs) and the application of MIPs in sensor design. MIP-based biological recognition parts can replace receptors or antibodies, which are rather expensive. Conducting polymers show unique properties that are applicable in sensor design. Therefore, MIP-based conducting polymers, including polypyrrole, polythiophene, poly(3,4-ethylenedioxythiophene), polyaniline and ortho-phenylenediamine are frequently applied in sensor design. Some other materials that can be molecularly imprinted are also overviewed in this review. Among many imprintable materials conducting polymer, polypyrrole is one of the most suitable for molecular imprinting of various targets ranging from small organics up to rather large proteins. Some attention in this review is dedicated to overview methods applied to design MIP-based sensing structures. Some attention is dedicated to the physicochemical methods applied for the transduction of analytical signals. Expected new trends and horizons in the application of MIP-based structures are also discussed.
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Usman M, Yang A, Inamdar AI, Kamal S, Hsu J, Kang D, Tseng T, Hung C, Lu K. Thin Film Growth of 3D Sr-based Metal-Organic Framework on Conductive Glass via Electrochemical Deposition. ChemistryOpen 2022; 11:e202100295. [PMID: 35112803 PMCID: PMC8812052 DOI: 10.1002/open.202100295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/16/2022] [Indexed: 11/09/2022] Open
Abstract
Integration of metal-organic frameworks (MOFs) as components of advanced electronic devices is at a very early phase of development and the fundamental issues related to their crystal growth on conductive substrate need to be addressed. Herein, we report on the structural characterization of a newly synthesized Sr-based MOF {[Sr(2,5-Pzdc)(H2 O)2 ] ⋅ 3 H2 O}n (1) and the uniform crystal growth of compound 1 on a conducting glass (fluorine doped tin oxide (FTO)) substrate using electrochemical deposition techniques. The Sr-based MOF 1 was synthesized by the reaction of Sr(NO3 )2 with 2,5-pyrazinedicarboxylic acid dihydrate (2,5-Pzdc) under solvothermal conditions. A single-crystal X-ray diffraction analysis revealed that 1 has a 3D structure and crystallizes in the triclinic P1 ‾ space group. In addition, the uniform crystal growth of this MOF on a conducting glass (FTO) substrate was successfully achieved using electrochemical deposition techniques. Only a handful of MOFs have been reposed to grown on conductive surfaces, which makes this study an important focal point for future research on the applications of MOF-based devices in microelectronics.
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Affiliation(s)
| | - An‐Chih Yang
- Department of Chemical EngineeringNational Taiwan UniversityTaipei106Taiwan
| | | | - Saqib Kamal
- Institute of ChemistryAcademia SinicaTaipei115Taiwan
| | - Ji‐Chiang Hsu
- Institute of ChemistryAcademia SinicaTaipei115Taiwan
- Department of Chemical Engineering and BiotechnologyNational Taipei University of TechnologyTaipei106Taiwan
| | - Dun‐Yen Kang
- Department of Chemical EngineeringNational Taiwan UniversityTaipei106Taiwan
| | - Tien‐Wen Tseng
- Department of Chemical Engineering and BiotechnologyNational Taipei University of TechnologyTaipei106Taiwan
| | | | - Kuang‐Lieh Lu
- Institute of ChemistryAcademia SinicaTaipei115Taiwan
- Department of ChemistryFu Jen Catholic UniversityNew Taipei City242Taiwan
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Gusev I, Ferreira M, Versace DL, Abbad-Andaloussi S, Pluczyk-Małek S, Erfurt K, Duda A, Data P, Blacha-Grzechnik A. Electrochemically Deposited Zinc (Tetraamino)phthalocyanine as a Light-activated Antimicrobial Coating Effective against S. aureus. Materials (Basel) 2022; 15:975. [PMID: 35160921 DOI: 10.3390/ma15030975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/21/2022] [Accepted: 01/23/2022] [Indexed: 01/07/2023]
Abstract
Light-activated antimicrobial coatings are currently considered to be a promising approach for the prevention of nosocomial infections. In this work, we present a straightforward strategy for the deposition of a photoactive biocidal organic layer of zinc (tetraamino)phthalocyanine (ZnPcNH2) in an electrochemical oxidative process. The chemical structure and morphology of the resulting layer are widely characterized by microscopic and spectroscopic techniques, while its ability to photogenerate reactive oxygen species (ROS) is investigated in situ by UV–Vis spectroscopy with α-terpinene or 1,3-diphenylisobenzofuran as a chemical trap. It is shown that the ZnPcNH2 photosensitizer retained its photoactivity after immobilization, and that the reported light-activated coating exhibits promising antimicrobial properties towards Staphyloccocus aureus (S. aureus).
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Shah SS, Das HT, Barai HR, Aziz MA. Boosting the Electrochemical Performance of Polyaniline by One-Step Electrochemical Deposition on Nickel Foam for High-Performance Asymmetric Supercapacitor. Polymers (Basel) 2022; 14:270. [PMID: 35054676 DOI: 10.3390/polym14020270] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 01/23/2023] Open
Abstract
Energy generation can be clean and sustainable if it is dependent on renewable resources and it can be prominently utilized if stored efficiently. Recently, biomass-derived carbon and polymers have been focused on developing less hazardous eco-friendly electrodes for energy storage devices. We have focused on boosting the supercapacitor's energy storage ability by engineering efficient electrodes in this context. The well-known conductive polymer, polyaniline (PANI), deposited on nickel foam (NF) is used as a positive electrode, while the activated carbon derived from jute sticks (JAC) deposited on NF is used as a negative electrode. The asymmetric supercapacitor (ASC) is fabricated for the electrochemical studies and found that the device has exhibited an energy density of 24 µWh/cm2 at a power density of 3571 µW/cm2. Furthermore, the ASC PANI/NF//KOH//JAC/NF has exhibited good stability with ~86% capacitance retention even after 1000 cycles. Thus, the enhanced electrochemical performances of ASC are congregated by depositing PANI on NF that boosts the electrode's conductivity. Such deposition patterns are assured by faster ions diffusion, higher surface area, and ample electroactive sites for better electrolyte interaction. Besides advancing technology, such work also encourages sustainability.
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Kahl M, Golden TD. Corrosion Resistance of Electrochemically Synthesized Modified Zaccagnaite LDH-Type Films on Steel Substrates. Materials (Basel) 2021; 14:7389. [PMID: 34885543 DOI: 10.3390/ma14237389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 11/21/2022]
Abstract
Modified zaccagnaite layered double hydroxide (LDH) type films were synthesized on steel substrates by pulsed electrochemical deposition from aqueous solutions. The resulting films were characterized by X-ray diffraction, scanning electron microscopy/X-ray dispersive spectroscopy, and Fourier transform infrared spectroscopy. Structural characterization indicated a pure layered double hydroxide phase; however, elemental analysis revealed that the surface of the films contained Zn:Al ratios outside the typical ranges of layered double hydroxides. Layer thickness for the deposited films ranged from approximately 0.4 to 3.0 μm. The corrosion resistance of the film was determined using potentiodynamic polarization experiments in 3.5 wt.% NaCl solution. The corrosion current density for the coatings was reduced by 82% and the corrosion potential was shifted 126 mV more positive when 5 layers of modified LDH coatings were deposited onto the steel substrates. A mechanism was proposed for the corroding reactions at the coating.
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Khurshid H, Yoosuf R, Issa BA, Attaelmanan AG, Hadjipanayis G. Tuning Easy Magnetization Direction and Magnetostatic Interactions in High Aspect Ratio Nanowires. Nanomaterials (Basel) 2021; 11:nano11113042. [PMID: 34835808 PMCID: PMC8621815 DOI: 10.3390/nano11113042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/25/2022]
Abstract
Cobalt nanowires have been synthesized by electrochemical deposition using track-etched anodized aluminum oxide (AAO) templates. Nanowires with varying spacing-to-diameter ratios were prepared, and their magnetic properties were investigated. It is found that the nanowires’ easy magnetization direction switches from parallel to perpendicular to the nanowire growth direction when the nanowire’s spacing-to-diameter ratio is reduced below 0.7, or when the nanowires’ packing density is increased above 5%. Upon further reduction in the spacing-to-diameter ratio, nanowires’ magnetic properties exhibit an isotropic behavior. Apart from shape anisotropy, strong dipolar interactions among nanowires facilitate additional uniaxial anisotropy, favoring an easy magnetization direction perpendicular to their growth direction. The magnetic interactions among the nanowires were studied using the standard method of remanence curves. The demagnetization curves and Delta m (Δm) plots showed that the nanowires interact via dipolar interactions that act as an additional uniaxial anisotropy favoring an easy magnetization direction perpendicular to the nanowire growth direction. The broadening of the dipolar component of Δm plots indicate an increase in the switching field distribution with the increase in the nanowires’ diameter. Our findings provide an important insight into the magnetic behavior of cobalt nanowires, meaning that it is crucial to design them according to the specific requirements for the application purposes.
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Affiliation(s)
- Hafsa Khurshid
- Department of Applied Physics and Astronomy, University of Sharjah, Sharjah 27272, United Arab Emirates; (R.Y.); (A.G.A.)
- Department of Radiology, Dartmouth Hitchcock Medical Center, Lebanon, NH 03766, USA
- Department of Medical Diagnostic Imaging, University of Sharjah, Sharjah 27272, United Arab Emirates;
- Correspondence: ; Tel.: +971-50-726-0807
| | - Rahana Yoosuf
- Department of Applied Physics and Astronomy, University of Sharjah, Sharjah 27272, United Arab Emirates; (R.Y.); (A.G.A.)
| | - Bashar Afif Issa
- Department of Medical Diagnostic Imaging, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Atta G. Attaelmanan
- Department of Applied Physics and Astronomy, University of Sharjah, Sharjah 27272, United Arab Emirates; (R.Y.); (A.G.A.)
| | - George Hadjipanayis
- Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA;
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Arbenin AY, Zemtsova EG, Orekhov EV, Sokolova DN, Baburova PI, Petrov AA, Gaǐshun VE, Smirnov VM. Features of Fabrication of Titanium Dioxide Based Coatings for Non-Lithographic Template Electrochemical Synthesis of Micron Metal Particle Arrays. Gels 2021; 7:gels7040202. [PMID: 34842685 PMCID: PMC8628743 DOI: 10.3390/gels7040202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 12/05/2022] Open
Abstract
This work is devoted to the development of non-lithographic template methods of synthesis. These methods have a significant advantage in terms of structure formation: there is no need to design and produce masks, which greatly simplifies the process, and more of them can work with nonplanar substrates. The purpose of this study was to reveal the conditions for the synthesis of titanium dioxide xerogel films of different topologies as well as to develop a technique for non-lithographic template electrochemical synthesis of micron metal particles arrays and to study the structure of the resulting coatings. The films were deposited on the surface of substrates via dip coating. Specific topology of the films was achieved by template sol-gel synthesis. Their structures were analyzed by SEM and XRD. Template synthesis of metal micro particles were realized by pulsed electrochemical deposition of metals into the perforations of xerogel films. Obtained materials were analyzed by SEM and XRD; the element distribution on the surface was determined by the EDS detector of SEM. Based on the analysis results, we suggest the mechanisms of formation of the xerogel topology and proved the efficiency of pulsed electrodeposition for template synthesis of micron particles arrays.
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Affiliation(s)
- Andrey Yu Arbenin
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
- Correspondence:
| | - Elena G. Zemtsova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Evgeniy V. Orekhov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Daria N. Sokolova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Polina I. Baburova
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Alexey A. Petrov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
| | - Vladimir E. Gaǐshun
- Francisk Skarina Gomel State University, 104 Sovetskaya Str., 246019 Gomel, Belarus;
| | - Vladimir M. Smirnov
- St. Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia; (E.G.Z.); (E.V.O.); (D.N.S.); (P.I.B.); (A.A.P.); (V.M.S.)
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Li M, Luo Y, Jia C, Huang M, Yu M, Luo G, Zhao L, Boukherroub R, Jiang Z. Au-assisted polymerization of conductive poly(N-phenylglycine) as high-performance positive electrodes for asymmetric supercapacitors. Nanotechnology 2021; 33:045602. [PMID: 34416744 DOI: 10.1088/1361-6528/ac1fb3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
Herein, a novel conductive poly(N-phenylglycine) (PNPG) polymer was successfully prepared, byin situelectrochemical polymerization method (+0.75 VversusAg/AgCl) for 10 min, on flexible stainless-steel plate coated with a thin Au film (Au/SS) to serve as a binder-free pseudocapacitive PNPG/Au/SS electrode for energy storage devices. Compared to the electrode without Au coating, PNPG/Au/SS electrode exhibited better electrochemical performance with larger specific capacitance (495 F g-1at a current density of 2 A g-1), higher rate performance and lower resistance, which are good indications to act as a positive electrode for asymmetric supercapacitor devices. Combined with activated carbon as a negative electrode, an asymmetric supercapacitor device was constructed. It displayed a specific capacitance of 38 F g-1at a current density of 0.5 A g-1and an energy density of 5.3 Wh kg-1at a power density of 250 W kg-1. Experimentally, two asymmetric supercapacitor devices were connected in series to power a home-made windmill continuously for 8 s, revealing the high potential of this novel conductive polymer material for energy storage application.
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Affiliation(s)
- Min Li
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
| | - Yunyun Luo
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
| | - Chen Jia
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
| | - Mimi Huang
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
| | - Mingzhi Yu
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
| | - Guoxi Luo
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
| | - Libo Zhao
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, France
| | - Zhuangde Jiang
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies, Overseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline Innovation, Xi'an Jiaotong University (Yantai) Research Institute for Intelligent Sensing Technology and System, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, People's Republic of China
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Lu Z, Zhou H, Ye C, Chen S, Ning J, Halim MA, Donaev SB, Wang S. Fabrication of Iron Pyrite Thin Films and Photovoltaic Devices by Sulfurization in Electrodeposition Method. Nanomaterials (Basel) 2021; 11:nano11112844. [PMID: 34835609 PMCID: PMC8625642 DOI: 10.3390/nano11112844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 07/09/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022]
Abstract
Iron pyrite is a cheap, stable, non-toxic, and earth-abundant material that has great potential in the field of photovoltaics. Electrochemical deposition is a low-cost method, which is also suitable for large-scale preparation of iron pyrite solar cells. In this work, we prepared iron pyrite films by electrochemical deposition with thiourea and explored the effect of sulfurization on the synthesis of high-quality iron pyrite films. Upon sulfurization, the amorphous precursor film becomes crystallized iron pyrite film. Optical and electrical characterization show that its band gap is 0.89 eV, and it is an n type semiconductor with a carrier concentration of 3.01 × 1019 cm-3. The corresponding photovoltaic device shows light response. This work suggests that sulfurization is essential in the electrochemical preparation for fabricating pure iron pyrite films, and therefore for low-cost and large-scale production of iron pyrite solar cells.
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Affiliation(s)
- Zheng Lu
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (Z.L.); (H.Z.); (C.Y.); (S.C.)
| | - Hu Zhou
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (Z.L.); (H.Z.); (C.Y.); (S.C.)
| | - Chao Ye
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (Z.L.); (H.Z.); (C.Y.); (S.C.)
| | - Shi Chen
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (Z.L.); (H.Z.); (C.Y.); (S.C.)
| | - Jinyan Ning
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (Z.L.); (H.Z.); (C.Y.); (S.C.)
- Correspondence: (J.N.); or (S.W.)
| | - Mohammad Abdul Halim
- Department of Materials Science & Engineering, University of Rajshashi, Rajshahi 6205, Bangladesh;
| | - Sardor Burkhanovich Donaev
- Faculty of Electronics and Automation, Tashkent State Technical University, University Str. 2, Tashkent 100095, Uzbekistan;
| | - Shenghao Wang
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (Z.L.); (H.Z.); (C.Y.); (S.C.)
- Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son 904-0495, Okinawa, Japan
- Correspondence: (J.N.); or (S.W.)
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Silva MD, Walton TR, Alrabeah GO, Layton DM, Petridis H. Comparison of Corrosion Products From Implant and Various Gold-Based Abutment Couplings: The Effect of Gold Plating. J ORAL IMPLANTOL 2021; 47:370-379. [PMID: 33263748 DOI: 10.1563/aaid-joi-d-19-00139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study compared titanium (Ti), palladium (Pd), platinum (Pt), and gold (Au) ion release following induced accelerated tribocorrosion from three Au alloy abutment groups coupled with Ti implants over time; investigated contacting surface structural changes; and explored the effect of Au plating. Three abutment groups, G (n = 8, GoldAdapt, Nobel Biocare), N (n = 8, cast UCLA, Biomet3i), and P (n = 8, cast UCLA, Biomet3i, Au plated), coupled with implants (Nobel Biocare), immersed in 1% lactic acid, were cyclically loaded. Ions released (ppb) at T1, T2, and T3, simulating 3, 5, and 12 months of function, respectively, were quantified by inductively coupled plasma mass spectrometry (ICP-MS) and compared. Surface degradation and fretted particle composition after T3 were evaluated with scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM/EDX). ICP-MS data were nonparametric, expressed as medians and interquartile ranges. SEM/EDX showed pitting, crevice corrosion, and fretted particles on the components. Released ion concentrations in all groups across time significantly decreased for Pd (P < .001, median range: 1.70-0.09), Pt (P = .021, 0.55-0.00), and Au (P < .001, 1.01-0.00) and increased for Ti (P = .018, 2.49-5.84). Total Ti release was greater than other ions combined for G (P = .012, 9.86-2.30) and N (P < .001, 13.59-5.70) but not for P (P = .141, 8.21-3.53). Total Ti release did not differ between groups (P = .36) but was less variable across group P. On average, total ion release was 13.77 ppb (interquartile range 8.91-26.03 ppb) across the 12-month simulation. Tribocorrosion of Ti implants coupled with Au abutments in a simulated environment was evidenced by fretted particles, pitting, and crevice corrosion of the coupling surfaces and release of ions. More Ti was released compared with Pd, Pt, and Au and continued to increase with time. Abutment composition influenced ion release. Au-plated abutments appeared to subdue variation in and minimize high-concentration spikes of titanium.
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Affiliation(s)
- Matilde D Silva
- Prosthodontic Unit, Department of Restorative Dentistry, UCL Eastman Dental Institute, University College London, London, United Kingdom
| | | | - Ghada O Alrabeah
- Prosthodontic Unit, Department of Restorative Dentistry, UCL Eastman Dental Institute, University College London, London, United Kingdom.,Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | | | - Haralampos Petridis
- Prosthodontic Unit, Department of Restorative Dentistry, UCL Eastman Dental Institute, University College London, London, United Kingdom
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Broncová G, Slaninová T, Trchová M, Prokopec V, Matějka P, Shishkanova TV. Optimization of Electrochemical Visualization of Latent Fingerprints with Poly(Neutral Red) on Brass Surfaces. Polymers (Basel) 2021; 13:polym13193220. [PMID: 34641036 PMCID: PMC8512869 DOI: 10.3390/polym13193220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/08/2021] [Accepted: 09/14/2021] [Indexed: 11/23/2022] Open
Abstract
This study is focused on the visualization of latent fingerprints on brass surfaces using the method of electrochemical deposition of a polymer film based on poly(neutral red) (PNR). The experiment included (i) optimization of conditions of electrochemical deposition of PNR on brass surfaces, (ii) ATR-FTIR spectroscopic characterization of PNR-modified substrates, and (iii) identification of characteristic details on visualized fingerprints on fired brass cartridges. For electrochemical visualization, it is necessary to keep in mind both kind and “story” substrates. Experimental findings showed that electrochemical visualization carried out on brass plates is a step forward before known findings described in the literature and gives simultaneously a new approach for criminalists in the fight against crime.
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Affiliation(s)
- Gabriela Broncová
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic; (T.S.); (V.P.); (T.V.S.)
- Correspondence: ; Tel.: +420-220-444-227; Fax: +420-220-444-058
| | - Tereza Slaninová
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic; (T.S.); (V.P.); (T.V.S.)
| | - Miroslava Trchová
- Central Laboratory, University of Chemistry and Technology in Prague, Technická 5, 166 28 Prague 6, Czech Republic;
| | - Vadim Prokopec
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic; (T.S.); (V.P.); (T.V.S.)
| | - Pavel Matějka
- Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic;
| | - Tatiana V. Shishkanova
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic; (T.S.); (V.P.); (T.V.S.)
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Kim JK, Yee JJ, Kee SH. Electrochemical Deposition Treatment (EDT) as a Comprehensive Rehabilitation Method for Corrosion-Induced Deterioration in Concrete with Various Severity Levels. Sensors (Basel) 2021; 21:6287. [PMID: 34577494 DOI: 10.3390/s21186287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/15/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022]
Abstract
The primary purposes of this study are to investigate the feasibility of electrochemical deposition treatment (EDT) as a comprehensive rehabilitation method for corrosion-induced deterioration in reinforced concrete with various severity levels, and to propose a guideline for the determination of critical factors to advance EDT. This study includes three experimental phases, each of which simulates the initiation (de-passivation), propagation (high corrosion activity), and acceleration (formation of a surface-breaking crack) periods of corrosion-induced deterioration. After completion of a series of accelerated corrosion tests, damaged concrete samples with different severity levels are rehabilitated by a series of EDT processes using a MgCl2 solution in an electrolyte. The main variables for this experiment are the concentration levels (0, 0.3, 1.0 and 3.0 M) of a MgCl2 solution for test phase 1, charging time (0, 2, and 7 days) in EDT for test phase 2, and configuration of pre- and post-treatment processes in EDT for test phase 3. The rehabilitation performance of EDT is evaluated by analyzing the AC impedance properties of the steel-and-concrete interface using electrochemical impedance spectroscopy (EIS) for the test phases 1 and 2, and microscopic alternation in concrete cracks using optical microscopic image and SEM/EDX. It is demonstrated that EDT is an effective method for preventing and mitigating corrosion-induced deterioration in the initiation and rust propagation periods of corrosion and for repairing (closing and filling) a corrosion-induced surface-breaking crack in the acceleration phase of corrosion. Corrosion-resistant performance of concrete increases as the concentration levels of a MgCl2 solution in an electrolyte increases and as the charging time in EDT increases. In addition, a post-treatment process (applying a NaOH solution) after the electrochemical deposition process significantly improves crack-repairing performance of EDT.
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Chen X, Chen J, Zhu J, Cai T, Guo Z. Investigation on the Electrochemical Deposition of Nanocrystalline Zinc with Cationic Polyacrylamide (CPAM)-ZnSO 4 Electrolyte. Micromachines (Basel) 2021; 12:mi12091120. [PMID: 34577763 PMCID: PMC8471456 DOI: 10.3390/mi12091120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/09/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022]
Abstract
The electrochemical deposition of nanocrystalline zinc has high potential to deposit zinc coatings, which have improved wear and corrosion properties compared to conventional coating methods. Conventionally, two or more additives are used in the electrolyte for the formation nanocrystalline zinc; these electrolyte components are complex, and their maintenance is inconvenient, making it unstable and not suitable for industrial scale production. This paper proposes an electrochemical deposition technique for nanocrystalline zinc using a ZnSO4 solution with cationic polyacrylamide (CPAM) as the unique additive. The results reveal that the cationic degree of CPAM has a significant influence on the deposition process and that the cationic degree of 20% enhances the electrolyte conductivity and improves the density of the deposited coating. The concentration of CPAM affects the electrolyte viscosity and conductivity. CPAM with a concentration of 20 g/L could simultaneously improve the electrolyte conductivity and maintain the viscosity at a low value, which promotes the formation of a bright deposited coating with a grain size of 87 nm. Additionally, the current density affects the grain structure of the deposited coating. With a current density of 0.5 A/dm2, a dense coating with lamellar grains and a grain size of 54.5 nm was obtained, which has, and the surface roughness was reduced to 0.162 μm. Moreover, the corrosion resistant property of the deposited coating was also improved.
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Affiliation(s)
- Xiaolei Chen
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China;
- Guangzhou Key Laboratory of Nontraditional Machining and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (J.C.); (J.Z.); (T.C.)
- Correspondence: ; Tel./Fax: +86-20-39322412
| | - Jiasen Chen
- Guangzhou Key Laboratory of Nontraditional Machining and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (J.C.); (J.Z.); (T.C.)
| | - Jiajun Zhu
- Guangzhou Key Laboratory of Nontraditional Machining and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (J.C.); (J.Z.); (T.C.)
| | - Tianyu Cai
- Guangzhou Key Laboratory of Nontraditional Machining and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (J.C.); (J.Z.); (T.C.)
| | - Zhongning Guo
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China;
- Guangzhou Key Laboratory of Nontraditional Machining and Equipment, Guangdong University of Technology, Guangzhou 510006, China; (J.C.); (J.Z.); (T.C.)
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43
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Lin FY, Lee PY, Chu TF, Peng CI, Wang GJ. Neutral Nonenzymatic Glucose Biosensors Based on Electrochemically Deposited Pt/Au Nanoalloy Electrodes. Int J Nanomedicine 2021; 16:5551-5563. [PMID: 34429599 PMCID: PMC8379712 DOI: 10.2147/ijn.s321480] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 08/02/2021] [Indexed: 12/18/2022] Open
Abstract
Background Type I diabetes occurs when the pancreas can only make limited or minimal insulin. Patients with type 1 diabetes need effective approaches to manage diabetes and maintain their blood-glucose concentration. Recently, continuous glucose monitoring (CGM) has been used to help control blood-glucose levels in patients with type 1 diabetes. Patients with type 2 diabetes may also benefit from CGM on multiple insulin injections, basal insulin, or sulfonylureas. Enzyme-free glucose detection in a neutral environment is the recent development trend of CGM. Materials and Methods Pt/Au alloy electrodes for enzyme-free glucose detection in a neutral environment were formed by electrochemically depositing Pt/Au alloy on a thin polycarbonate (PC) membrane surface with a uniformly distributed micro-hemisphere array. The PC membranes were fabricated using semiconductor microelectromechanical manufacturing processes, precision micro-molding, and hot embossing. Amperometry was used to measure the glucose concentration in PBS (pH 7.4) and artificial human serum. Results The Pt/Au nanoalloy electrode had excellent specificity for glucose detection, according to the experimental results. The device had a sensitivity of 2.82 μA mM−1 cm−2, a linear range of 1.39–13.9 mM, and a detection limit of 0.482 mM. Even though the complex interfering species in human blood can degrade the sensing signal, further experiments conducted in artificial serum confirmed the feasibility of the proposed Pt/Au nanoalloy electrode in clinical applications. Conclusion The proposed Pt/Au nanoalloy electrode can catalyze glucose reactions in neutral solutions with enhancing sensing performance by the synergistic effect of bimetallic materials and increasing detection surface area. This novel glucose biosensor has advantages, such as technology foresight, good detection performance, and high mass production feasibility. Thus, the proposed neutral nonenzymatic glucose sensor can be further used in CGMs.
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Affiliation(s)
- Fang-Yu Lin
- Graduate Institute of Biomedical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan
| | - Pei-Yuan Lee
- Graduate Institute of Biomedical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan.,Department of Orthopedics, Show Chwan Memorial Hospital, Changhua, 50008, Taiwan
| | - Tien-Fu Chu
- Department of Mechanical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan
| | - Chang-I Peng
- Department of Mechanical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan
| | - Gou-Jen Wang
- Graduate Institute of Biomedical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan.,Department of Mechanical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
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Lee T, Lee JW, Park KT, Kim JS, Park CR, Kim H. Nanostructured Inorganic Chalcogenide-Carbon Nanotube Yarn having a High Thermoelectric Power Factor at Low Temperature. ACS Nano 2021; 15:13118-13128. [PMID: 34279909 DOI: 10.1021/acsnano.1c02508] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As power-conversion devices, flexible thermoelectrics that enable conformal contact with heat sources of arbitrary shape are attractive. However, the low performance of flexible thermoelectric materials, which does not exceed those of brittle inorganic counterparts, hampers their practical applications. Herein, we propose inorganic chalcogenide-nanostructured carbon nanotube (CNT) yarns with outstanding power factor at a low temperature using electrochemical deposition. The inorganic chalcogenide-nanostructured CNT yarns exhibit the power factors of 3425 and 2730 μW/(m·K2) at 298 K for the p- and n-type, respectively, which is higher than those of previously reported flexible TE materials. On the basis of excellent performance and geometry advantage of the nanostructured CNT yarn for modular design, all-CNT based thermoelectric generators have been easily fabricated, showing the maximum power densities of 24 and 380 mW/m2 at ΔT = 5 and 20 K, respectively. These results provide a promising strategy for the realization of high-performance flexible thermoelectric materials and devices for flexible/or wearable self-powering systems.
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Affiliation(s)
- Taemin Lee
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Jae Won Lee
- Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Tae Park
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin-Sang Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Jeonbuk 55324, Republic of Korea
| | - Chong Rae Park
- Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Heesuk Kim
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Energy & Environment Technology, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea
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45
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Sun Y, Zhang X, Luo M, Hu W, Zheng L, Huang R, Greven J, Hildebrand F, Yuan F. Plasma Spray vs. Electrochemical Deposition: Toward a Better Osteogenic Effect of Hydroxyapatite Coatings on 3D-Printed Titanium Scaffolds. Front Bioeng Biotechnol 2021; 9:705774. [PMID: 34381765 PMCID: PMC8350575 DOI: 10.3389/fbioe.2021.705774] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/13/2021] [Indexed: 01/08/2023] Open
Abstract
Surface modification of three-dimensional (3D)-printed titanium (Ti) scaffolds with hydroxyapatite (HA) has been a research hotspot in biomedical engineering. However, unlike HA coatings on a plain surface, 3D-printed Ti scaffolds have inherent porous structures that influence the characteristics of HA coatings and osteointegration. In the present study, HA coatings were successfully fabricated on 3D-printed Ti scaffolds using plasma spray and electrochemical deposition, named plasma sprayed HA (PSHA) and electrochemically deposited HA (EDHA), respectively. Compared to EDHA scaffolds, HA coatings on PSHA scaffolds were smooth and continuous. In vitro cell studies confirmed that PSHA scaffolds have better potential to promote bone mesenchymal stem cell adhesion, proliferation, and osteogenic differentiation than EDHA scaffolds in the early and late stages. Moreover, in vivo studies showed that PSHA scaffolds were endowed with superior bone repair capacity. Although the EDHA technology is simpler and more controllable, its limitation due to the crystalline and HA structures needs to be improved in the future. Thus, we believe that plasma spray is a better choice for fabricating HA coatings on implanted scaffolds, which may become a promising method for treating bone defects.
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Affiliation(s)
- Yang Sun
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xing Zhang
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Mingran Luo
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Weifan Hu
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Li Zheng
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ruqi Huang
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Johannes Greven
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Frank Hildebrand
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Feng Yuan
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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Khazi I, Mescheder U, Wilde J. Influence of Bath Hydrodynamics on the Micromechanical Properties of Electrodeposited Nickel-Cobalt Alloys. Materials (Basel) 2021; 14:ma14143898. [PMID: 34300816 PMCID: PMC8304452 DOI: 10.3390/ma14143898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/28/2021] [Accepted: 07/08/2021] [Indexed: 11/29/2022]
Abstract
The influence of bath hydrodynamics on the resultant micromechanical properties of electrodeposited nickel-cobalt alloy system is investigated. The bath hydrodynamics realized by magnetic stirring is simulated using COMSOL Multiphysics and a region of minimum variation in velocity within the electrolytic cell is determined and validated experimentally. Nickel-cobalt alloy and nickel coating samples are deposited galvanostatically (50 mA/cm2) with varying bath velocity (0 to 42 cm/s). The surface morphology of samples gradually changed from granular (fractal dimension 2.97) to more planar (fractal dimension 2.15) growth type, and the according average roughness decreased from 207.5 nm to 11 nm on increasing the electrolyte velocity from 0 to 42 cm/s for nickel-cobalt alloys; a similar trend was also found in the case of nickel coatings. The calculated grain size from the X-ray diffractograms decreased from 31 nm to 12 nm and from 69 nm to 26 nm as function of increasing velocity (up to 42 cm/s) for nickel-cobalt and nickel coatings, respectively. Consecutively, the measured Vickers microhardness values increased by 43% (i.e., from 393 HV0.01 to 692 HV0.01) and by 33% (i.e., from 255 HV0.01 to 381 HV0.01) for nickel-cobalt and nickel coatings, respectively, which fits well with the Hall–Petch relation.
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Affiliation(s)
- Isman Khazi
- Institute for Microsystems Technology (iMST), Faculty of Mechanical & Medical Engineering, Robert Gerwig-Platz 1, 78120 Furtwangen im Schwarzwald, Germany;
- Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg im Breisgau, Germany;
- Correspondence: ; Tel.: +49-7723-920-2810
| | - Ulrich Mescheder
- Institute for Microsystems Technology (iMST), Faculty of Mechanical & Medical Engineering, Robert Gerwig-Platz 1, 78120 Furtwangen im Schwarzwald, Germany;
- Associated to the Faculty of Engineering, University of Freiburg, 79110 Freiburg im Breisgau, Germany
| | - Jürgen Wilde
- Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg im Breisgau, Germany;
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Dhanasekaran P, Rajavarman S, Selvaganesh SV, Bhat SD. Insight towards Nucleation Mechanism and Change in Morphology for Nanostructured Platinum Thin Film Directly Grown on Carbon Substrate via Electrochemical Deposition. Materials (Basel) 2021; 14:2330. [PMID: 33946239 DOI: 10.3390/ma14092330] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 11/30/2022]
Abstract
Nanocrystalline platinum with different morphologies is synthesized via electrochemical deposition technique. The nucleation mechanism and its structural effect over the electrodeposited Pt on carbon electrodes have been systematically studied. Powder X-ray diffraction, X-ray photoelectron spectroscopy, and field-emission scanning electron microscopy are employed to study nucleation, oxidation states, and Pt structure growth on a carbon electrode. This study reports significant development of Pt metal nanoparticles with different morphologies such as a sphere, flower, core-flower, and rod-like structure directly fabricated on carbon electrode while tuning the deposition parameters such as current density, time, temperature, pH during the deposition process. The proposed electrochemical route represents a superior fabrication procedure for large-scale electrode fabrication compared to a conventional method for preparing membrane electrode assemblies for fuel cell stacks.
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Nagaura T, Phan HP, Malgras V, Pham TA, Lim H, Ashok A, Kim J, You J, Nguyen NT, Na J, Yamauchi Y. Universal Electrochemical Synthesis of Mesoporous Chalcogenide Semiconductors: Mesoporous CdSe and CdTe Thin Films for Optoelectronic Applications. Angew Chem Int Ed Engl 2021; 60:9660-9665. [PMID: 33295688 DOI: 10.1002/anie.202013541] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/11/2020] [Indexed: 11/09/2022]
Abstract
Here we report the soft-template-assisted electrochemical deposition of mesoporous semiconductors (CdSe and CdTe). The resulting mesoporous films are stoichiometrically equivalent and contain mesopores homogeneously distributed over the entire surface. To demonstrate the versatility of the method, two block copolymers with different molecular weights are used, yielding films with pores of either 9 or 18 nm diameter. As a proof of concept, the mesoporous CdSe film-based photodetectors show a high sensitivity of 204 mW-1 cm2 at 680 nm wavelength, which is at least two orders of magnitude more sensitive than the bulk counterpart. This work presents a new synthesis route for nanostructured semiconductors with optical band gaps active in the visible spectrum.
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Affiliation(s)
- Tomota Nagaura
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Hoang-Phuong Phan
- Queensland Micro- and Nanotechnology Centre, Griffith University, Brisbane, 4111, Queensland, Australia
| | - Victor Malgras
- JST-ERATO Yamauchi Materials Space-Tectonics Project, International Center for Materials Nanoarchitectonics (WPI-MANA) and International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Tuan-Anh Pham
- Queensland Micro- and Nanotechnology Centre, Griffith University, Brisbane, 4111, Queensland, Australia
| | - Hyunsoo Lim
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia.,New & Renewable Energy Research Center, Korea Electronics Technology Institute (KETI), 25, Saenari-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13509, Republic of Korea
| | - Aditya Ashok
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Jeonghun Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Jungmok You
- Department of Plant and Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, Brisbane, 4111, Queensland, Australia
| | - Jongbeom Na
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia.,JST-ERATO Yamauchi Materials Space-Tectonics Project, International Center for Materials Nanoarchitectonics (WPI-MANA) and International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
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Arivazhagan M, Manova Santhosh Y, Maduraiveeran G. Non-Enzymatic Glucose Detection Based on NiS Nanoclusters@NiS Nanosphere in Human Serum and Urine. Micromachines (Basel) 2021; 12:403. [PMID: 33916480 PMCID: PMC8067435 DOI: 10.3390/mi12040403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/23/2021] [Accepted: 04/02/2021] [Indexed: 11/25/2022]
Abstract
Herein, we report a non-enzymatic electrochemical glucose sensing platform based on NiS nanoclusters dispersed on NiS nanosphere (NC-NiS@NS-NiS) in human serum and urine samples. The NC-NiS@NS-NiS are directly grown on nickel foam (NF) (NC-NiS@NS-NiS|NF) substrate by a facile, and one-step electrodeposition strategy under acidic solution. The as-developed nanostructured NC-NiS@NS-NiS|NF electrode materials successfully employ as the enzyme-mimic electrocatalysts toward the improved electrocatalytic glucose oxidation and sensitive glucose sensing. The NC-NiS@NS-NiS|NF electrode presents an outstanding electrocatalytic activity and sensing capability towards the glucose owing to the attribution of great double layer capacitance, excessive electrochemical active surface area (ECASA), and high electrochemical active sites. The present sensor delivers a limit of detection (LOD) of ~0.0083 µM with a high sensitivity of 54.6 µA mM-1 cm-2 and a wide linear concentration range (20.0 µM-5.0 mM). The NC-NiS@NS-NiS|NF-based sensor demonstrates the good selectivity against the potential interferences and shows high practicability by glucose sensing in human urine and serum samples.
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Affiliation(s)
| | | | - Govindhan Maduraiveeran
- Materials Electrochemistry Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India; (M.A.); (Y.M.S.)
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Ramanavicius S, Jagminas A, Ramanavicius A. Advances in Molecularly Imprinted Polymers Based Affinity Sensors (Review). Polymers (Basel) 2021; 13:974. [PMID: 33810074 PMCID: PMC8004762 DOI: 10.3390/polym13060974] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/03/2021] [Accepted: 03/16/2021] [Indexed: 12/12/2022] Open
Abstract
Recent challenges in biomedical diagnostics show that the development of rapid affinity sensors is very important issue. Therefore, in this review we are aiming to outline the most important directions of affinity sensors where polymer-based semiconducting materials are applied. Progress in formation and development of such materials is overviewed and discussed. Some applicability aspects of conducting polymers in the design of affinity sensors are presented. The main attention is focused on bioanalytical application of conducting polymers such as polypyrrole, polyaniline, polythiophene and poly(3,4-ethylenedioxythiophene) ortho-phenylenediamine. In addition, some other polymers and inorganic materials that are suitable for molecular imprinting technology are also overviewed. Polymerization techniques, which are the most suitable for the development of composite structures suitable for affinity sensors are presented. Analytical signal transduction methods applied in affinity sensors based on polymer-based semiconducting materials are discussed. In this review the most attention is focused on the development and application of molecularly imprinted polymer-based structures, which can replace antibodies, receptors, and many others expensive affinity reagents. The applicability of electrochromic polymers in affinity sensor design is envisaged. Sufficient biocompatibility of some conducting polymers enables to apply them as "stealth coatings" in the future implantable affinity-sensors. Some new perspectives and trends in analytical application of polymer-based semiconducting materials are highlighted.
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Affiliation(s)
- Simonas Ramanavicius
- Department of Electrochemical Material Science, State Research Institute Center for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania; (S.R.); (A.J.)
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | - Arunas Jagminas
- Department of Electrochemical Material Science, State Research Institute Center for Physical Sciences and Technology (FTMC), Sauletekio av. 3, LT-10257 Vilnius, Lithuania; (S.R.); (A.J.)
| | - Arunas Ramanavicius
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
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