1
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Woźniak-Budych M, Zgórzyńska U, Przysiecka Ł, Załęski K, Jarek M, Jancelewicz M, Domke A, Iatsunskyi I, Nowaczyk G, Staszak K, Wieczorek D, Tylkowski B. Copper oxide(I) nanoparticle-modified cellulose acetate membranes with enhanced antibacterial and antifouling properties. ENVIRONMENTAL RESEARCH 2024; 252:119068. [PMID: 38705452 DOI: 10.1016/j.envres.2024.119068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 04/24/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
Cellulose acetate membranes exhibit a potential to be applied in hemodialysis. However, their performance is limited by membrane fouling and a lack of antibacterial properties. In this research, copper oxide (I) nanoparticles were fabricated in situ into a cellulose acetate matrix in the presence of polyvinylpyrrolidone (pore-forming agent) and sulfobetaine (stabilising agent) to reduce the leakage of copper ions from nano-enhanced membranes. The influence of nanoparticles on the membrane structure and their antibacterial and antifouling properties were investigated. The results showed that incorporating Cu2O NPs imparted significant antibacterial properties against Staphylococcus aureus and fouling resistance under physiological conditions. The Cu2O NPs-modified membrane could pave the way for potential dialysis applications.
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Affiliation(s)
- Marta Woźniak-Budych
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland.
| | - Urszula Zgórzyńska
- Institute of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland
| | - Łucja Przysiecka
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Marcin Jarek
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Mariusz Jancelewicz
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Aleksandra Domke
- Institute of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Katarzyna Staszak
- Institute of Technology and Chemical Engineering, Poznan University of Technology, ul. Berdychowo 4, 60-965 Poznan, Poland
| | - Daria Wieczorek
- Poznan University of Economics and Business, Department of Technology and Instrumental Analysis, Faculty of Commodity Science, al. Niepodległości 10, Poznan, 61-875, Poland
| | - Bartosz Tylkowski
- Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Faculty of Health Science, Department of Clinical Neuropsychology, ul. Skłodowskiej Curie 9, 85-094 Bydgoszcz, Poland
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2
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Mullaivendhan J, Akbar I, Ahamed A, Abdulrahman Alodaini H. Synthesis rifaximin with copper (Rif-Cu) and copper oxide (Rif-CuO) nanoparticles Considerable dye decolorization: An application of aerobic oxidation of eco-friendly sustainable approach. Heliyon 2024; 10:e25285. [PMID: 38370249 PMCID: PMC10867351 DOI: 10.1016/j.heliyon.2024.e25285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/20/2024] Open
Abstract
In this study, rifaximin with copper (Cu) and copper oxide (CuO) nanoparticles (NPs) were synthesised. The resultant CuO nanoparticles were used to degrade Rhodamine B (RhB) and Coomassie Brilliant Blue (G250). Rifaximin copper and copper oxide nanoparticles were characterised using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible spectroscopy (UV), X-ray Photoelectron Spectroscopy (XPS), Transmission Electron Microscopy (TEM), and gas chromatography-electrochemical mass spectrometry (GC-EI-MS). An FT-IR study confirmed the formation of Cu in the 562 cm-1 peak range. Rifaximin Cu and CuO Nanoparticles displayed UV absorption peaks at 253 nm and 230 nm, respectively. Coomassie Brilliant Blue G250 was completely decolourised in Cu nanoparticles at 100 %, and Rhodamine B was also decolourised in Rifaximin CuO nanoparticles at 73 %, although Coomassie Brilliant Blue G250 Rifaximin Cu nanoparticles absorbed a high percentage of dye decolorization. The aerobic oxidation of isopropanol conversion was confirmed by GC-MS analysis. Retention time of 27.35 and 30.32 was confirmed using Cu and CuO nanoparticles as the final products of 2-propanone. It is used in the textile and pharmaceutical industries for aerobic alcohol oxidation. Rifaximin CuO nanoparticles highly active in aerobic oxidation. The novelty of this study is that, for the first time, rifaximin was used for the synthesis of copper and copper oxide nanoparticles, and it successfully achieved decolorization and aerobic oxidation.
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Affiliation(s)
- Janani Mullaivendhan
- Research Department of Chemistry, Nehru Memorial College (Affiliated Bharathidasan University), Puthanampatti, 621007, Tamil Nadu, India
| | - Idhayadhulla Akbar
- Research Department of Chemistry, Nehru Memorial College (Affiliated Bharathidasan University), Puthanampatti, 621007, Tamil Nadu, India
| | - Anis Ahamed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hissah Abdulrahman Alodaini
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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3
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Li C, Qiu T, Li C, Cheng B, Jin M, Zhou G, Giersig M, Wang X, Gao J, Akinoglu EM. Highly Flexible and Acid-Alkali Resistant TiN Nanomesh Transparent Electrodes for Next-Generation Optoelectronic Devices. ACS NANO 2023; 17:24763-24772. [PMID: 37901960 DOI: 10.1021/acsnano.3c05211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Transparent electrodes are vital for optoelectronic devices, but their development has been constrained by the limitations of existing materials such as indium tin oxide (ITO) and newer alternatives. All face issues of robustness, flexibility, conductivity, and stability in harsh environments. Addressing this challenge, we developed a flexible, low-cost titanium nitride (TiN) nanomesh transparent electrode showcasing exceptional acid-alkali resistance. The TiN nanomesh electrode, created by depositing a TiN coating on a naturally cracked gel film substrate via a sputtering method, maintains a stable electrical performance through thousands of bending cycles. It exhibits outstanding chemical stability, resisting strong acid and alkali corrosion, which is a key hurdle for current electrodes when in contact with acidic/alkaline materials and solvents during device fabrication. This, coupled with superior light transmission and conductivity (88% at 550 nm with a sheet resistance of ∼200 Ω/sq), challenges the reliance on conventional materials. Our TiN nanomesh electrode, successfully applied in electric heaters and electrically controlled thermochromic devices, offers broad potential beyond harsh environment applications. It enables alternative possibilities for the design and fabrication of future optoelectronics for advancements in this pivotal field.
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Affiliation(s)
- Caitao Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, People's Republic of China
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, Guangdong, People's Republic of China
| | - Tengfei Qiu
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Cong Li
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Academy of Advanced Optoelectronics, South China Normal University Guangzhou 510006, People's Republic of China
| | - Baoyuan Cheng
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, People's Republic of China
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, Guangdong, People's Republic of China
| | - Mingliang Jin
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, People's Republic of China
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, Guangdong, People's Republic of China
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, People's Republic of China
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, Guangdong, People's Republic of China
| | - Michael Giersig
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, Guangdong, People's Republic of China
- Institute of Fundamental Technological Research, Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Xin Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, People's Republic of China
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, Guangdong, People's Republic of China
| | - Jinwei Gao
- Institute for Advanced Materials and Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Academy of Advanced Optoelectronics, South China Normal University Guangzhou 510006, People's Republic of China
| | - Eser Metin Akinoglu
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, People's Republic of China
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, Guangdong, People's Republic of China
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4
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Sun K, Ma A, Yang P, Qi J, Lei Y, Zhang F, Duan W, Fan R. Flexible Copper Nanowire/Polyvinylidene Fluoride Membranous Composites with a Frequency-Independent Negative Permittivity. Polymers (Basel) 2023; 15:4486. [PMID: 38231915 PMCID: PMC10708450 DOI: 10.3390/polym15234486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 01/19/2024] Open
Abstract
With the increasing popularity of wearable devices, flexible electronics with a negative permittivity property have been widely applied to wearable devices, sensors, and energy storage. In particular, a low-frequency dispersion negative permittivity in a wide frequency range can effectively contribute to the stable working performance of devices. In this work, polyvinylidene fluoride (PVDF) was selected as the flexible matrix, and copper nanowires (CuNWs) were used as the conductive functional filler to prepare a flexible CuNWs/PVDF composite film with a low-frequency dispersion negative permittivity. As the content of CuNWs increased, the conductivity of the resulting composites increased sharply and presented a metal-like behavior. Moreover, the negative permittivity consistent with the Drude model was observed when CuNWs formed a percolative network. Meanwhile, the negative permittivity exhibited a low-frequency dispersion in the whole test frequency range, and the fluctuation of the permittivity spectra was relatively small (-760 to -584) at 20 kHz-1 MHz. The results revealed that the high electron mobility of CuNWs is reasonable for the low-frequency dispersion of negative permittivity. CuNWs/PVDF composite films with a frequency-independent negative permittivity provide a new idea for the development of flexible wearable electronic devices.
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Affiliation(s)
| | | | | | | | | | | | | | - Runhua Fan
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China; (K.S.); (A.M.); (P.Y.); (J.Q.); (Y.L.); (F.Z.); (W.D.)
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5
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Singh A, Gautam A, Banerjee S, Singh A, Kushwaha HR. Synthesis of copper-reduced graphene oxide nanomaterials using glucose and study of its antibacterial and anticancer activities. Biomed Mater 2023; 18:065025. [PMID: 37820688 DOI: 10.1088/1748-605x/ad0274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/11/2023] [Indexed: 10/13/2023]
Abstract
In this work, glucose-capped copper nanoparticles decorated reduced graphene oxide nanomaterial are synthesized at 100 °C and 200 °C via chemical reduction method and studied for their antibacterial and anticancer activities. Synthesized nanomaterials were characterized using x-ray diffraction, Fourier-transform infrared, transmission electron microscope, and RAMAN. It is observed in transmission electron microscopy and selected area electron diffraction studies that copper nanoparticles deposited onto reduced graphene oxide are smaller than nanoparticles generated in the absence of reduced graphene oxide. Also, the size of copper nanoparticles synthesized at 200 °C is smaller than at 100 °C. Results suggest that Cu/Glu/rGO synthesized at both temperatures showed significant antibacterial activity againstEscherichia coliandBacillus anthracis,similarly, showed significant cell death in cancer cell lines [Cal33 and HCT-116 p53 (+/+)]. Interestingly, the nanomaterials were seen to be more effective against the cancer cell lines harboring aggregating mutant p53. Tumors with aggregating mutants of p53 are difficult to treat hence, Cu/Glu/rGO can be promising therapeutic agents against these difficult cancers. However, the antibacterial and anticancer activity of Cu/Glu/rGO synthesized at 100 °C where Cu2O form is obtained was found to be more effective compared to Cu/Glu/rGO synthesized at 200 °C where Cu form is obtained. Though fine-tuning of the material may be required for its commercial applications.
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Affiliation(s)
- Anu Singh
- School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Akanksha Gautam
- Special Centre for Systems Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Sagarika Banerjee
- School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Awantika Singh
- School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
| | - Hemant R Kushwaha
- School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India
- Special Centre for Systems Medicine, Jawaharlal Nehru University, New Delhi 110067, India
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6
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Mekonnen EG, Shitaw KN, Hwang BJ, Workie YA, Abda EM, Mekonnen ML. Copper nanoparticles embedded fungal chitosan as a rational and sustainable bionanozyme with robust laccase activity for catalytic oxidation of phenolic pollutants. RSC Adv 2023; 13:32126-32136. [PMID: 37920762 PMCID: PMC10619478 DOI: 10.1039/d3ra06619c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023] Open
Abstract
Despite their potential for oxidation of persistent environmental pollutants, the development of rational and sustainable laccase nanozymes with efficient catalytic performance remains a challenge. Herein, fungal-produced chitosan-copper (CsCu) is proposed as a rational and sustainable bionanozyme with intrinsic laccase activity. The CsCu nanozyme was prepared by in situ reduction of copper on chitosan extracted from Irpex sp. isolate AWK2 a native fungus, from traditional fermented foods, yielding a low molecular weight chitosan with a 70% degree of deacetylation. Characterizations of the nanozyme using SEM-EDX, XRD, and XPS confirmed the presence of a multi-oxidation state copper on the chitosan matrix which is consistent with the composition of natural laccase. The laccase memetic activity was investigated using 2,4-DP as a substrate which oxidized to form a reddish-pink color with 4-AP (λmax = 510 nm). The CsCu nanozyme showed 38% higher laccase activity than the pristine Cu NPs at pH 9, indicating enhanced activity in the presence of chitosan structure. Further, CsCu showed significant stability in harsh conditions and exhibited a lower Km (0.26 mM) which is competitive with that reported for natural laccase. Notably, the nanozyme converted 92% of different phenolic substrates in 5 h, signifying a robust performance for environmental remediation purposes.
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Affiliation(s)
- Efrata Getachew Mekonnen
- Biotechnology Department, Addis Ababa Science, and Technology University P. O. Box 1647 Addis Ababa Ethiopia
| | - Kassie Nigus Shitaw
- Department of Chemical Engineering, National Taiwan University of Science and Technology Taipei 106 Taiwan
| | - Bing-Joe Hwang
- Department of Chemical Engineering, National Taiwan University of Science and Technology Taipei 106 Taiwan
- National Synchrotron Radiation Research Center Hsinchu Taiwan
| | - Yitayal Admassu Workie
- Industrial Chemistry Department, Addis Ababa Science and Technology University P. O. Box 1647 Addis Ababa Ethiopia
- Nanotechnology Center of Excellence, Addis Ababa Science and Technology University P. O. Box 1647 Addis Ababa Ethiopia
| | - Ebrahim M Abda
- Biotechnology Department, Addis Ababa Science, and Technology University P. O. Box 1647 Addis Ababa Ethiopia
- Bioprocess and Biotechnology Center of Excellence, Addis Ababa Science and Technology University P. O. Box 1647 Addis Ababa Ethiopia
| | - Menbere Leul Mekonnen
- Industrial Chemistry Department, Addis Ababa Science and Technology University P. O. Box 1647 Addis Ababa Ethiopia
- Nanotechnology Center of Excellence, Addis Ababa Science and Technology University P. O. Box 1647 Addis Ababa Ethiopia
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7
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Kumar DR, Koshy AM, Sharma N, Thomas N, Swaminathan P. Room Temperature Curable Copper Nanowire-Based Transparent Heater. ACS OMEGA 2023; 8:21107-21112. [PMID: 37332811 PMCID: PMC10269267 DOI: 10.1021/acsomega.3c02048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/19/2023] [Indexed: 06/20/2023]
Abstract
Copper nanowires (Cu NWs) are a promising alternative to silver NWs to develop transparent conducting films (TCFs) due to their comparable electrical conductivity and relative abundance. Postsynthetic modifications of the ink and high-temperature postannealing processes for obtaining conducting films are significant challenges that need to be addressed before commercial deployment of these materials. In this work, we have developed an annealing-free (room temperature curable) TCF with Cu NW ink that requires minimal postsynthetic modifications. Organic acid pretreated Cu NW ink is used for spin-coating to obtain a TCF with a sheet resistance of 9.4 Ω/sq. and optical transparency of 67.4% at 550 nm. For oxidation protection, the Cu NW TCF is encapsulated with polydimethylsiloxane (PDMS). The encapsulated film is tested as a transparent heater at various voltages and shows good repeatability. These results demonstrate the potential of Cu NW-based TCFs as a replacement for Ag-NW based TCFs for a variety of optoelectronic applications, such as transparent heaters, touch screens, and photovoltaics.
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Affiliation(s)
- Darbha
V. Ravi Kumar
- Department
of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore, Tamil Nadu 641 112, India
| | - Aarju Mathew Koshy
- Electronic
Materials and Thin Films Lab, Department of Metallurgical and Materials
Engineering, IIT Madras, Chennai, Tamil Nadu 600 036, India
| | - Neha Sharma
- Electronic
Materials and Thin Films Lab, Department of Metallurgical and Materials
Engineering, IIT Madras, Chennai, Tamil Nadu 600 036, India
| | - Neethu Thomas
- Electronic
Materials and Thin Films Lab, Department of Metallurgical and Materials
Engineering, IIT Madras, Chennai, Tamil Nadu 600 036, India
| | - Parasuraman Swaminathan
- Electronic
Materials and Thin Films Lab, Department of Metallurgical and Materials
Engineering, IIT Madras, Chennai, Tamil Nadu 600 036, India
- Centre
of Excellence in Ceramics Technologies for Futuristic Mobility, IIT Madras, Chennai, Tamil Nadu 600 036, India
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8
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Xie Q, Pan M, Wang Z, Si W, Zhang R, Shu Y, Sun G, Jing Q, Shen Y, Uyama H. Enhancing the oxygen reduction activity by constructing nanocluster-scaled Fe 2O 3/Cu interfaces. NANOSCALE 2023; 15:4388-4396. [PMID: 36745395 DOI: 10.1039/d2nr06941e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Interface engineering is a promising strategy to enhance the catalytic performance of electrocatalysts for the oxygen reduction reaction (ORR). However, it is still a challenge to modulate the size into a suitable range (e.g., nanocluster-scale) to make the most of the interface. Moreover, the explicit mechanism of the interface for enhancing catalytic performance is still elusive. Herein, a model catalyst (FeCu@NC) loaded with nanocluster-scaled Fe2O3/Cu interfaces was prepared by modulating the metal components of the precursor to explore the enhancement of interface engineering for the ORR. Benefiting from the synergistic effect of the strong interfacial coupling effects of Fe2O3/Cu and optimized microstructure, FeCu@NC exhibited superior ORR activity and zinc-air battery performance. Experimental and theoretical calculations revealed that the presence of the Fe2O3/Cu interface breaks the traditional cognition to endow the Cu atoms (intrinsically inferior for the ORR) with a slight positive charge, which serves as the active sites for the ORR. This study provides a novel insight into the design of advanced electrocatalysts for the ORR by interface engineering.
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Affiliation(s)
- Qianjie Xie
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Meiling Pan
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology, Xinjiang University, No. 777 Huarui Road, 830046 Urumqi, China.
| | - Zheng Wang
- Xi'an Rare Metal Materials Research Institute Co., Ltd., No. 96 Weiyang Road, 710016 Xi'an, China.
| | - Wenfang Si
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Ruiyi Zhang
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Yu Shu
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Guodong Sun
- Xi'an Rare Metal Materials Research Institute Co., Ltd., No. 96 Weiyang Road, 710016 Xi'an, China.
| | - Qun Jing
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology, Xinjiang University, No. 777 Huarui Road, 830046 Urumqi, China.
| | - Yehua Shen
- College of Chemistry and Materials Science, Northwest University, No. 1, Xuefu Road, 710127 Xi'an, Shaanxi, China.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita 565-0871, Japan
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9
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Yaacob NA, Khasri A, Mohd Salleh NH, Mohd Jamir MR. Optimization of AC/TiO 2-Cu ternary composite preparation with enhanced UV light activity for adsorption–photodegradation of metronidazole via RSM-CCD. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2143367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
| | - Azduwin Khasri
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia
| | | | - Mohd Ridzuan Mohd Jamir
- Faculty of Mechanical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia
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10
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Valiey E, Dekamin MG. Design and characterization of an urea-bridged PMO supporting Cu(II) nanoparticles as highly efficient heterogeneous catalyst for synthesis of tetrazole derivatives. Sci Rep 2022; 12:18139. [PMID: 36307538 PMCID: PMC9616949 DOI: 10.1038/s41598-022-22905-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 10/20/2022] [Indexed: 12/30/2022] Open
Abstract
In this work, a new periodic mesoporous organosilica with urea-bridges produced by the reaction of (3-aminopropyl)triethoxysilane and toluene-2,4-diisocyanate (APS-TDU-PMO) is introduced. The obtained APS-TDU-PMO was found to be an appropriate support for loading of Cu(II) nanoparticles to afford supramolecular Cu@APS-TDU-PMO nanocomposite. Uniformity and mesoporosity of both synthesized nanomaterials including APS-TDU-PMO and Cu@APS-TDU-PMO were proved by different spectroscopic, microscopic or analytical techniques including FTIR, EDX, XRD, FESEM, TEM, BET, TGA and DTA. Furthermore, the prepared Cu@APS-TDU-PMO nanomaterial was also used, as a heterogeneous and recyclable catalyst, for the synthesis of tetrazole derivatives through cascade condensation, concerted cycloaddition and tautomerization reactions. Indeed, the main advantages of this Cu@APS-TDU-PMO is its simple preparation and high catalytic activity as well as proper surface area which enable it to work under solvent-free conditions. Also, the introduced Cu@APS-TDU-PMO heterogeneous catalyst showed good stability and reusability for six consecutive runs to address more green chemistry principles.
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Affiliation(s)
- Ehsan Valiey
- grid.411748.f0000 0001 0387 0587Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114 Iran
| | - Mohammad G. Dekamin
- grid.411748.f0000 0001 0387 0587Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114 Iran
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11
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Hasan K, Joseph RG, Patole SP. Copper Pyrrole‐imine Incorporated Fe
3
O
4
‐Nanocomposite: A Magnetically Separable and Reusable Catalyst for the Oxidative Amination of Aryl Aldehydes. ChemistrySelect 2022. [DOI: 10.1002/slct.202201840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kamrul Hasan
- Pure and Applied Chemistry Group Department of Chemistry College of Sciences University of Sharjah, P.O. Box 27272 Sharjah United Arab Emirates
| | - Reshma G. Joseph
- Pure and Applied Chemistry Group Department of Chemistry College of Sciences University of Sharjah, P.O. Box 27272 Sharjah United Arab Emirates
| | - Shashikant P. Patole
- Department of Physics Khalifa University of Science and Technology, P.O. Box 127788 Abu Dhabi United Arab Emirates
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12
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Proença M, Rodrigues MS, Meira DI, Castro MCR, Rodrigues PV, Machado AV, Alves E, Barradas NP, Borges J, Vaz F. Optimization of Au:CuO Thin Films by Plasma Surface Modification for High-Resolution LSPR Gas Sensing at Room Temperature. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22187043. [PMID: 36146392 PMCID: PMC9501632 DOI: 10.3390/s22187043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 05/21/2023]
Abstract
In this study, thin films composed of gold nanoparticles embedded in a copper oxide matrix (Au:CuO), manifesting Localized Surface Plasmon Resonance (LSPR) behavior, were produced by reactive DC magnetron sputtering and post-deposition in-air annealing. The effect of low-power Ar plasma etching on the surface properties of the plasmonic thin films was studied, envisaging its optimization as gas sensors. Thus, this work pretends to attain the maximum sensing response of the thin film system and to demonstrate its potential as a gas sensor. The results show that as Ar plasma treatment time increases, the host CuO matrix is etched while Au nanoparticles are uncovered, which leads to an enhancement of the sensitivity until a certain limit. Above such a time limit for plasma treatment, the CuO bonds are broken, and oxygen is removed from the film's surface, resulting in a decrease in the gas sensing capabilities. Hence, the importance of the host matrix for the design of the LSPR sensor is also demonstrated. CuO not only provides stability and protection to the Au NPs but also promotes interactions between the thin film's surface and the tested gases, thereby improving the nanocomposite film's sensitivity. The optimized sensor sensitivity was estimated at 849 nm/RIU, which demonstrates that the Au-CuO thin films have the potential to be used as an LSPR platform for gas sensors.
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Affiliation(s)
- Manuela Proença
- Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Marco S. Rodrigues
- Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Diana I. Meira
- Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - M. Cidalia R. Castro
- Instituto de Polímeros e Compósitos, Universidade do Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Pedro V. Rodrigues
- Instituto de Polímeros e Compósitos, Universidade do Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Ana V. Machado
- Instituto de Polímeros e Compósitos, Universidade do Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Eduardo Alves
- IPFN, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 Bobadela LRS, 2695-066 Lisboa, Portugal
| | - Nuno P. Barradas
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10 Bobadela LRS, 2695-066 Lisboa, Portugal
| | - Joel Borges
- Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
- Correspondence: ; Tel.: +351-253-510-471
| | - Filipe Vaz
- Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
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Mokoba T, Liu Y, Wu Y, Zhang TC, Yuan S. Agave-Angustifolia-like Cu 3Mo 2O 9 Nanoplate-Coated Copper Mesh for Effective Emulsion Separation and Photocatalytic Degradation of Soluble Dyes. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thabang Mokoba
- Low-carbon Technology and Chemical Reaction Engineering Lab, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yajie Liu
- Low-carbon Technology and Chemical Reaction Engineering Lab, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yue Wu
- Low-carbon Technology and Chemical Reaction Engineering Lab, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Tian Cheng Zhang
- Civil and Environmental Engineering Department, University of Nebraska-Lincoln, Omaha, Nebraska 68182-0178, United States
| | - Shaojun Yuan
- Low-carbon Technology and Chemical Reaction Engineering Lab, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
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14
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Jafari M, Botte GG. Electrochemical valorization of waste activated sludge for short-chain fatty acids production. Front Chem 2022; 10:974223. [PMID: 36110143 PMCID: PMC9469876 DOI: 10.3389/fchem.2022.974223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/02/2022] [Indexed: 11/13/2022] Open
Abstract
A tremendous amount of waste activated sludge (WAS) ends up in landfilling even after a substantial retention time during anaerobic digestion. This leftover activated sludge is an organic-rich material with the high potential to produce value-added chemicals such as short chain fatty acids (SCFAs). In the present study, a novel electrochemical conversion of activated sludge (E-WAS) was carried out on the surface of non-precious electrodes (nickel, stainless-steel and copper) in alkaline media at low applied potential and temperature. Cyclic voltammetry showed that Cu (II)/Cu (III) and Ni (II)/Ni(III) redox couple catalyzed the WAS oxidation reaction to produce SCFAs and hydrogen. The results revealed that Cu(II)/Cu(III) has higher catalytic oxidation capability towards SCFAs. Yields of 48.7, 21.4, and 14.6 mg SCFAs per g of volatile solids were achieved by using copper, nickel and stainless-steel as working electrodes, respectively. Post analysis characterization techniques indicate that copper oxide films lead to WAS oxidation. Total volatile solid removal of 30% was obtained at 35°C and 1.65 V in 0.2 M NaOH after 2 h of operation in an electrochemical digestor with copper electrodes which is more efficient than a conventional alkaline treatment (24 h, 55%, 1M NaOH). Ammonia was produced as the by-product of E-WAS oxidation. The highest amount of ammonia (250 mg L−1) was obtained by using nickel as the working electrode after 2 h operation at 35°C and 1.35 V applied potential. The change in WAS morphology revealed that the copper oxide film is an effective electrocatalyst for WAS disinfection.
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15
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Lin JC, Liatsis P, Alexandridis P. Flexible and Stretchable Electrically Conductive Polymer Materials for Physical Sensing Applications. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2059673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jui-Chi Lin
- Department of Biomedical Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY, USA
| | - Panos Liatsis
- Department of Electrical Engineering and Computer Science, Khalifa University, Abu Dhabi, UAE
| | - Paschalis Alexandridis
- Department of Biomedical Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY, USA
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY, USA
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16
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Rerek T, Derkowska-Zielinska B, Trzcinski M, Szczesny R, Naparty MK, Skowronski L. Influence of the Microstructure and Optical Constants on Plasmonic Properties of Copper Nanolayers. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7292. [PMID: 34885447 PMCID: PMC8658243 DOI: 10.3390/ma14237292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022]
Abstract
Copper layers with thicknesses of 12, 25, and 35 nm were thermally evaporated on silicon substrates (Si(100)) with two different deposition rates 0.5 and 5.0 Å/s. The microstructure of produced coatings was studied using atomic force microscopy (AFM) and powder X-ray diffractometer (XRD). Ellipsometric measurements were used to determine the effective dielectric functions <ε˜> as well as the quality indicators of the localized surface plasmon (LSP) and the surface plasmon polariton (SPP). The composition and purity of the produced films were analysed using X-ray photoelectron spectroscopy (XPS).
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Affiliation(s)
- Tomasz Rerek
- Institute of Mathematics and Physics, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland; (M.T.); (M.K.N.); (L.S.)
| | - Beata Derkowska-Zielinska
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun, Grudziadzka 5, 87-100 Torun, Poland;
| | - Marek Trzcinski
- Institute of Mathematics and Physics, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland; (M.T.); (M.K.N.); (L.S.)
| | - Robert Szczesny
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland;
| | - Mieczyslaw K. Naparty
- Institute of Mathematics and Physics, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland; (M.T.); (M.K.N.); (L.S.)
| | - Lukasz Skowronski
- Institute of Mathematics and Physics, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland; (M.T.); (M.K.N.); (L.S.)
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17
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Li J, Wang S, Zhuang Z, Liu Z, Guo Z, Huang X. In-situ synthesis of Cu/Cu2+1O/carbon spheres for the electrochemical sensing of glucose in serum. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/j.cjac.2021.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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18
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Zhang X, Lei D, Zhang B, Yao P, Wang Z. SiN x /Cu Spectral Beam Splitting Films for Hybrid Photovoltaic and Concentrating Solar Thermal Systems. ACS OMEGA 2021; 6:21709-21718. [PMID: 34471773 PMCID: PMC8388091 DOI: 10.1021/acsomega.1c03178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Spectral beam splitting (SBS) films are crucial for the development of hybrid systems based on photovoltaic (PV) and concentrating solar thermal (CST) technologies. In this study, a novel double-layer SiN x /Cu SBS film was prepared via magnetron sputtering. This film was developed based on the linear Fresnel solar thermal technology used in PV/CST hybrid systems. The as-deposited film exhibited superior SBS properties, with a high transmittance of 72.9% and a reflectance of 89.7%. To optimize the optical properties, the thicknesses of the metal and SiN x layers were precisely controlled. The optimal thicknesses of the Cu and SiN x layers were determined to be 17 and 67 nm, respectively. Furthermore, the thermal stability of the SBS film was evaluated. When annealed at 50 °C, the surface of the SBS film became more uniform and smooth, and with increasing annealing time, the film became denser. No strong diffraction peaks of Cu were observed in the X-ray diffraction patterns because of the low content and poor crystallization of Cu. Atomic force microscopy investigations revealed the formation of a textured surface and a decrease in the root-mean-square roughness with an increase in the annealing time from 0 to 360 h. As a key component with considerable application potential in PV/CST hybrid systems, SBS films are currently an important research topic.
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Affiliation(s)
- Xin Zhang
- Key
Laboratory of Concentrating Solar Thermal Energy and Photovoltaic
System, Chinese Academy of Sciences, Beijing 100190, China
- Institute
of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Beijing
Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China
| | - Dongqiang Lei
- Key
Laboratory of Concentrating Solar Thermal Energy and Photovoltaic
System, Chinese Academy of Sciences, Beijing 100190, China
- Institute
of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Beijing
Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China
| | - Bo Zhang
- North
University of China, Taiyuan, Shanxi 030051, China
| | - Pan Yao
- Key
Laboratory of Concentrating Solar Thermal Energy and Photovoltaic
System, Chinese Academy of Sciences, Beijing 100190, China
- Institute
of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Beijing
Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China
| | - Zhifeng Wang
- Key
Laboratory of Concentrating Solar Thermal Energy and Photovoltaic
System, Chinese Academy of Sciences, Beijing 100190, China
- Institute
of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Beijing
Engineering Research Center of Concentrating Solar Thermal Power, Beijing 100190, China
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Mureed S, Naz S, Haider A, Raza A, Ul-Hamid A, Haider J, Ikram M, Ghaffar R, Irshad M, Ghaffar A, Saeed A. Development of Multi-concentration Cu:Ag Bimetallic Nanoparticles as a Promising Bactericidal for Antibiotic-Resistant Bacteria as Evaluated with Molecular Docking Study. NANOSCALE RESEARCH LETTERS 2021; 16:91. [PMID: 34021844 PMCID: PMC8141091 DOI: 10.1186/s11671-021-03547-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
The present study is concerned with evaluating the influence of various concentrations of Ag within Cu:Ag bimetallic nanoparticles developed for use as a promising anti-bacterial agent against antibiotic-resistant bacteria. Here, Cu:Ag bimetallic nanoparticles with various concentration ratios (2.5, 5.0, 7.5, and 10 wt%) of Ag in fixed amount of Cu labeled as 1:0.025, 1:0.050, 1:0.075, and 1:0.1 were synthesized using co-precipitation method with ammonium hydroxide and deionized water as solvent, polyvinyl pyrrolidone as a capping agent, and sodium borohydride and ascorbic acid as reducing agents. These formulated products were characterized through a variety of techniques. XRD confirmed phase purity and detected the presence of distinct fcc structures belonging to Cu and Ag phases. FTIR spectroscopy confirmed the presence of vibrational modes corresponding to various functional groups and recorded characteristic peak emanating from the bimetallic. UV-visible spectroscopy revealed reduction in band gap with increasing Ag content. SEM and HR-TEM micrographs revealed spherical morphology of Ag-doped Cu bimetallic with small and large scale agglomerations. The samples exhibited varying dimensions and interlayer spacing. Bactericidal action of synthesized Cu:Ag bimetallic NPs depicted statistically significant (P < 0.05) inhibition zones recorded for various concentrations of Ag dopant against Staphylococcus aureus (S. aureus), Escherichia coli (E. coli), and Acinetobacter baumannii (A. baumannii) ranging from (0.85-2.8 mm), (0.55-1.95 mm) and (0.65-1.85 mm), respectively. Broadly, Cu:Ag bimetallic NPs were found to be more potent against gram-positive compared with gram-negative. Molecular docking study of Ag-Cu bimetallic NPs was performed against β-lactamase which is a key enzyme of cell wall biosynthetic pathway from both S. aureus (Binding score: - 4.981 kcal/mol) and A. bauminnii (Binding score: - 4.013 kcal/mol). Similarly, binding interaction analysis against FabI belonging to fatty acid biosynthetic pathway from A. bauminnii (Binding score: - 3.385 kcal/mol) and S. aureus (Binding score: - 3.012 kcal/mol) along with FabH from E. coli (Binding score: - 4.372 kcal/mol) was undertaken. These theoretical computations indicate Cu-Ag bimetallic NPs as possible inhibitor of selected enzymes. It is suggested that exploring in vitro inhibition potential of these materials may open new avenues for antibiotic discovery.
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Affiliation(s)
- Shumaila Mureed
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, 54000, Punjab, Pakistan
- Department of Physics, Government College University Lahore, Lahore, 54000, Punjab, Pakistan
| | - Sadia Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Ali Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore, 54000, Punjab, Pakistan
| | - Ali Raza
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
| | - Junaid Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, Lahore, 54000, Punjab, Pakistan.
| | - Rabia Ghaffar
- Division of Science and Technology, Department of Botany, University of Education, Lahore, 54000, Pakistan
| | - Muneeb Irshad
- Department of Physics, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Abdul Ghaffar
- Department of Physics, Government College University Lahore, Lahore, 54000, Punjab, Pakistan
| | - Aamer Saeed
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
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Raagulan K, Ghim JS, Braveenth R, Jung MJ, Lee SB, Chai KY, Mi Kim B, Lee J. EMI Shielding of the Hydrophobic, Flexible, Lightweight Carbonless Nano-Plate Composites. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2086. [PMID: 33096895 PMCID: PMC7589401 DOI: 10.3390/nano10102086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 01/06/2023]
Abstract
The cost-effective spray coated composite was successfully synthesis and characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and X-ray diffraction techniques. The one step synthetic strategy was used for the synthesis of nanoplates that have a crystalline nature. The composites are amorphous and hydrophobic with micron thickness (<400 m). The maximum contact angle showed by composite is 132.65° and have wetting energy of -49.32 mN m-1, spreading coefficient -122.12 mN m-1, and work of adhesion 23.48 mN m-1. The minimum thickness of synthesized nanoplate is 3 nm while the maximum sheet resistance, resistivity, and electrical conductivity of the composites are 11.890 ohm sq-1, 0.4399 Ω.cm-1, and 8.967 S.cm-1, respectively. The cobalt nanoplate coated non-woven carbon fabric (CoFC) possesses excellent sheet resistance, hydrophobic nature, and EMI shielding efficiency of 99.99964%. The composite can block above 99.9913% of incident radiation (X band). Hence, the composite can be utilized in application areas such as medical clothes, mobile phones, automobiles, aerospace, and military equipment.
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Affiliation(s)
- Kanthasamy Raagulan
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Iksan City 570-749, Korea; (K.R.); (J.S.G.); (R.B.); (K.Y.C.)
| | - Jin Soo Ghim
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Iksan City 570-749, Korea; (K.R.); (J.S.G.); (R.B.); (K.Y.C.)
| | - Ramanaskanda Braveenth
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Iksan City 570-749, Korea; (K.R.); (J.S.G.); (R.B.); (K.Y.C.)
| | - Moon Jai Jung
- Department of BIN Convergence Technology, Jeonbuk National University, Jeonju, Jeonbuk 54896, Korea;
| | - Sang Bok Lee
- Composite Research Division, Korea Institute of Materials Science, Changwon 51508, Korea;
| | - Kyu Yun Chai
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University, Iksan City 570-749, Korea; (K.R.); (J.S.G.); (R.B.); (K.Y.C.)
| | - Bo Mi Kim
- Department of Chemical Engineering, Wonkwang University, Iksan 570-749, Korea
| | - Joonsik Lee
- Composite Research Division, Korea Institute of Materials Science, Changwon 51508, Korea;
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21
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Sun Y, Du C, Wu M, Zhao L, Yu S, Gong B, Ding Q. Synchronously improved reliability, figure of merit and adhesion of flexible copper nanowire networks by chitosan transition. NANOTECHNOLOGY 2020; 31:375303. [PMID: 32454475 DOI: 10.1088/1361-6528/ab967b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Copper nanowires (CuNWs) are remarkable components that can replace indium tin oxide as transparent electrodes due to their low cost, high conductivity and acceptable transmittance. However, a common coating method can cause poor electrical, optical and adhesive properties because of the creation of loosely connected junctions. In addition, the unsatisfactory thermal and environmental stabilities limit the practical applications. These problems should be overcome in CuNW-based films for reliable transparent electrodes through material and engineering approaches. In this work, a novel transparent composite electrode composed of chitosan and CuNWs on a flexible polyethylene terephthalate (PET) substrate, with synchronously strengthened adhesion, as well as heightened transmittance, reduced resistivity, improved flexibility, enhanced thermal stability and increased environmental stability, was prepared without vacuum processing and high-temperature annealing. The effects of the number of CuNW network layers and chitosan concentration on the performance of chitosan/CuNW composite transparent electrodes were studied. The resulting electrodes exhibitan excellent conductivity (sheet resistance: 15.6 Ω sq-1) and a superior optical transmittance (∼87%) at 550 nm. Calculation of the figure of merit displays a high value of 168, which is the highest among all the reported CuNW-based transparent electrodes. Meanwhile, the sheet resistance did not show great change after 10 tape tests and 10 000 bending cycles, suggesting good adhesion to the PET substrate and outstanding mechanical flexibility. Moreover, the composite transparent electrodes show good stability to resist long-term storage and temperature variation in thermal environment.
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Affiliation(s)
- Yongtao Sun
- Department of Mechanics and Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Road Yaguan 135, Tianjin 300350, People's Republic of China
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22
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Process Parameters for FFF 3D-Printed Conductors for Applications in Sensors. SENSORS 2020; 20:s20164542. [PMID: 32823712 PMCID: PMC7472618 DOI: 10.3390/s20164542] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 12/31/2022]
Abstract
With recent developments in additive manufacturing (AM), new possibilities for fabricating smart structures have emerged. Recently, single-process fused-filament fabrication (FFF) sensors for dynamic mechanical quantities have been presented. Sensors measuring dynamic mechanical quantities, like strain, force, and acceleration, typically require conductive filaments with a relatively high electrical resistivity. For fully embedded sensors in single-process FFF dynamic structures, the connecting electrical wires also need to be printed. In contrast to the sensors, the connecting electrical wires have to have a relatively low resistivity, which is limited by the availability of highly conductive FFF materials and FFF process conditions. This study looks at the Electrifi filament for applications in printed electrical conductors. The effect of the printing-process parameters on the electrical performance is thoroughly investigated (six parameters, >40 parameter values, >200 conductive samples) to find the highest conductivity of the printed conductors. In addition, conductor embedding and post-printing heating of the conductive material are researched. The experimental results helped us to understand the mechanisms of the conductive network’s formation and its degradation. With the insight gained, the optimal printing strategy resulted in a resistivity that was approx. 40% lower than the nominal value of the filament. With a new insight into the electrical behavior of the conductive material, process optimizations and new design strategies can be implemented for the single-process FFF of functional smart structures.
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Pinto RJB, Martins MA, Lucas JMF, Vilela C, Sales AJM, Costa LC, Marques PAAP, Freire CSR. Highly Electroconductive Nanopapers Based on Nanocellulose and Copper Nanowires: A New Generation of Flexible and Sustainable Electrical Materials. ACS APPLIED MATERIALS & INTERFACES 2020; 12:34208-34216. [PMID: 32588615 DOI: 10.1021/acsami.0c09257] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nowadays, the development of sustainable high-performance functional nanomaterials is in the spotlight. In this work, we report the preparation of a new generation of flexible and high electroconductive nanopapers based on nanofibrillated cellulose (NFC) and copper nanowires (CuNWs). Homogeneous red brick color nanopapers (thickness 30.2-36.4 μm) were obtained by mixing different amounts of NFC aqueous suspensions and CuNWs (1, 5, 10, 20, and 50 wt %), followed by vacuum filtration and drying. scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analysis confirmed the incorporation of the different amounts of CuNWs, and their uniform and random distribution. All of the nanomaterials displayed good mechanical properties, viz., Young's modulus = 2.62-4.72 GPa, tensile strength = 30.2-70.6 MPa, and elongation at break = 2.3-4.1% for the nanopapers with 50 and 1 wt % of CuNWs mass fraction, respectively. The electrical conductivity of these materials strongly depends on the CuNW content, attaining a value of 5.43 × 104 S·m-1 for the nanopaper with a higher mass fraction. This is one of the highest values reported so far for nanocellulose-based conductive materials. Therefore, these nanopapers can be seen as an excellent inexpensive and green alternative to the current electroconductive materials for applications in electronic devices, energy storage, or sensors.
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Affiliation(s)
- Ricardo J B Pinto
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Manuel A Martins
- CICECO-Aveiro Institute of Materials, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
| | - José M F Lucas
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carla Vilela
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Antonio J M Sales
- I3N-Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Luís C Costa
- I3N-Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paula A A P Marques
- TEMA-Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carmen S R Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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24
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Preparation of FTO/CU2O Electrode Protected by PEDOT:PSS and Its Better Performance in the Photoelectrocatalytic Reduction of CO2 to Methanol. Electrocatalysis (N Y) 2020. [DOI: 10.1007/s12678-020-00612-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kim W, Lee JS, Jang J. Aptamer-Functionalized Three-Dimensional Carbon Nanowebs for Ultrasensitive and Free-Standing PDGF Biosensor. ACS APPLIED MATERIALS & INTERFACES 2020; 12:20882-20890. [PMID: 32315526 DOI: 10.1021/acsami.0c03709] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Research on flexible biosensors is mostly focused on their use in obtaining information on physical signals (such as temperature, heart rate, pH, and intraocular pressure). Consequently, there are hardly any studies on using flexible electronics for detecting biomolecules and biomarkers that cause diseases. In this study, we propose a flexible, three-dimensional carbon nanoweb (3DCNW)-based aptamer sensor to detect the platelet-induced growth factor (PDGF), which is an oncogenic biomarker. As a template for the 3D structure, poly(acrylonitrile) (PAN) nanowebs were synthesized using a facile electrospinning process. The PAN nanowebs were then subjected to chemical vapor deposition with copper powder. This was followed by Cu etching to generate carbon protrusions on the web surface. As an active site, PDGF-B binding aptamer was introduced on the 3DCNW surface to form biosensor electrodes. The 3DCNW-based aptasensor exhibited excellent sensitivity (down to 1.78 fM), with high selectivity, reversibility, and stability to PDGF-BB.
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Affiliation(s)
- Wooyoung Kim
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Jun Seop Lee
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-Daero, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do 13120, Republic of Korea
| | - Jyongsik Jang
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea
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Spiridonov V, Liu X, Zezin S, Panova I, Sybachin A, Yaroslavov A. Hybrid nanocomposites of carboxymethyl cellulose cross-linked by in-situ formed Cu2O nanoparticles for photocatalytic applications. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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A Novel Preparation of Nano-Copper Chalcogenide (Cu 2S)-based Flexible Counter Electrode. Sci Rep 2019; 9:12337. [PMID: 31451743 PMCID: PMC6710431 DOI: 10.1038/s41598-019-48809-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 08/12/2019] [Indexed: 11/15/2022] Open
Abstract
Copper nanowires (CuNWs) are used to prepare flexible, transparent conducting substrates due to their low cost and ease of fabrication on a large area. A CuNW/polymer composite substrate was prepared and vulcanized to create a novel flexible nano-Cu2S/polymer composite substrate. The physical and photovoltaic properties of the substrate can be controlled by tuning the concentration of CuNW dispersion during the preparation of CuNWs and nano Cu2S films. The nano-Cu2S-based composite substrate was used as an effective flexible counter electrode of a quantum-dot-sensitized solar cell (QDSSC) and resulted in a maximum cell efficiency of 1.01%.
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Choi J, Park CH, Kwack JH, Lee DJ, Kim JG, Choi J, Bae BH, Park SJ, Kim E, Park YW, Ju BK. Ag fiber/IZO Composite Electrodes: Improved Chemical and Thermal Stability and Uniform Light Emission in Flexible Organic Light-Emitting Diodes. Sci Rep 2019; 9:738. [PMID: 30679642 PMCID: PMC6345866 DOI: 10.1038/s41598-018-37105-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/03/2018] [Indexed: 11/17/2022] Open
Abstract
Electrospun metal fiber is a promising flexible transparent electrode owing to its extremely long length and facile fabrication process. However, metal-fiber electrodes have problems with chemical and thermal stability and nonuniform emission in organic light-emitting diode (OLED) at low luminance. In this study, we proposed a Ag fiber/IZO composite electrode with high stability. Ag fiber/IZO composite electrodes exhibited chemical and thermal stability. In addition, it was demonstrated that the OLED with the Ag fiber/IZO composite electrode operated stably, and the uniform emission of the OLED with metal-fiber electrodes improved by using highly conductive IZO film.
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Affiliation(s)
- Junhee Choi
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Cheol Hwee Park
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Jin Ho Kwack
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea.,Samsung Display Co., Samsung St. 181, Tangjeong-Myeon, Asan-si, Chungcheongnam-do, 31454, Republic of Korea
| | - Dong Jun Lee
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Jae Geun Kim
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Jaemyeong Choi
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Bong Han Bae
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Soo Jong Park
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Enjung Kim
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea
| | - Young Wook Park
- School of Mechanical and ICT Convergence Engineering, SUN MOON University, Asan-si, Chungcheongnam-do, 31460, Republic of Korea.
| | - Byeong-Kwon Ju
- Display and Nanosystem Laboratory, School of Electrical Engineering, Korea University Seoul, 02841, Seoul, Republic of Korea.
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