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Nagoth JA, John MS, Ramasamy KP, Mancini A, Zannotti M, Piras S, Giovannetti R, Rathnam L, Miceli C, Biondini MC, Pucciarelli S. Synthesis of Bioactive Nickel Nanoparticles Using Bacterial Strains from an Antarctic Consortium. Mar Drugs 2024; 22:89. [PMID: 38393060 PMCID: PMC10890439 DOI: 10.3390/md22020089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Marine microorganisms have been demonstrated to be an important source for bioactive molecules. In this paper we report the synthesis of Ni nanoparticles (NiSNPs) used as reducing and capping agents for five bacterial strains isolated from an Antarctic marine consortium: Marinomonas sp. ef1, Rhodococcus sp. ef1, Pseudomonas sp. ef1, Brevundimonas sp. ef1, and Bacillus sp. ef1. The NiSNPs were characterized by Ultraviolet-visible (UV-vis) spectroscopy, Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM), X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopic analysis. The maximum absorbances in the UV-Vis spectra were in the range of 374 nm to 422 nm, corresponding to the Surface plasmon resonance (SPR) of Nickel. DLS revealed NiSNPs with sizes between 40 and 45 nm. All NiSNPs were polycrystalline with a face-centered cubic lattice, as revealed by XRD analyses. The NiSNPs zeta potential values were highly negative. TEM analysis showed that the NiSNPs were either spherical or rod shaped, well segregated, and with a size between 20 and 50 nm. The FTIR spectra revealed peaks of amino acid and protein binding to the NiSNPs. Finally, all the NiSNPs possess significant antimicrobial activity, which may play an important role in the management of infectious diseases affecting human health.
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Affiliation(s)
- Joseph Amruthraj Nagoth
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Maria Sindhura John
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Kesava Priyan Ramasamy
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
- Department of Ecology and Environmental Science, Umeå University, 90187 Umeå, Sweden
| | - Alessio Mancini
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Marco Zannotti
- Chemistry Interdisciplinary Project (ChIP), Chemistry Division, School of Science and Technology, University of Camerino, 62032 Camerino, Italy; (M.Z.); (S.P.); (R.G.)
| | - Sara Piras
- Chemistry Interdisciplinary Project (ChIP), Chemistry Division, School of Science and Technology, University of Camerino, 62032 Camerino, Italy; (M.Z.); (S.P.); (R.G.)
| | - Rita Giovannetti
- Chemistry Interdisciplinary Project (ChIP), Chemistry Division, School of Science and Technology, University of Camerino, 62032 Camerino, Italy; (M.Z.); (S.P.); (R.G.)
| | - Lydia Rathnam
- Department of Physics, Pondicherry University, Puducherry 605014, India;
| | - Cristina Miceli
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Maria Chiara Biondini
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
| | - Sandra Pucciarelli
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy; (J.A.N.); (M.S.J.); (K.P.R.); (A.M.); (C.M.); (M.C.B.)
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Stoll JA, Lachowicz D, Kmita A, Gajewska M, Sikora M, Berent K, Przybylski M, Russek SE, Celinski ZJ, Hankiewicz JH. Synthesis of Manganese Zinc Ferrite Nanoparticles in Medical-Grade Silicone for MRI Applications. Int J Mol Sci 2023; 24:ijms24065685. [PMID: 36982758 PMCID: PMC10059734 DOI: 10.3390/ijms24065685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/06/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023] Open
Abstract
The aim of this project is to fabricate hydrogen-rich silicone doped with magnetic nanoparticles for use as a temperature change indicator in magnetic resonance imaging-guided (MRIg) thermal ablations. To avoid clustering, the particles of mixed MnZn ferrite were synthesized directly in a medical-grade silicone polymer solution. The particles were characterized by transmission electron microscopy, powder X-ray diffraction, soft X-ray absorption spectroscopy, vibrating sample magnetometry, temperature-dependent nuclear magnetic resonance relaxometry (20 °C to 60 °C, at 3.0 T), and magnetic resonance imaging (at 3.0 T). Synthesized nanoparticles were the size of 4.4 nm ± 2.1 nm and exhibited superparamagnetic behavior. Bulk silicone material showed a good shape stability within the study’s temperature range. Embedded nanoparticles did not influence spin–lattice relaxation, but they shorten the longer component of spin–spin nuclear relaxation times of silicone’s protons. However, these protons exhibited an extremely high r2* relaxivity (above 1200 L s−1 mmol−1) due to the presence of particles, with a moderate decrease in the magnetization with temperature. With an increased temperature decrease of r2*, this ferro–silicone can be potentially used as a temperature indicator in high-temperature MRIg ablations (40 °C to 60 °C).
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Affiliation(s)
- Joshua A. Stoll
- Colorado Springs Center for the BioFrontiers Institute, University of Colorado, 1420 Austin Bluffs Pkwy, Colorado Springs, CO 80918, USA
| | - Dorota Lachowicz
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, 30-059 Krakow, Poland
- Correspondence:
| | - Angelika Kmita
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, 30-059 Krakow, Poland
| | - Marta Gajewska
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, 30-059 Krakow, Poland
| | - Marcin Sikora
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, 30-059 Krakow, Poland
| | - Katarzyna Berent
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, 30-059 Krakow, Poland
| | - Marek Przybylski
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, 30-059 Krakow, Poland
| | - Stephen E. Russek
- National Institute of Standards and Technology, 325 Broadway St., Boulder, CO 80305, USA
| | - Zbigniew J. Celinski
- Colorado Springs Center for the BioFrontiers Institute, University of Colorado, 1420 Austin Bluffs Pkwy, Colorado Springs, CO 80918, USA
| | - Janusz H. Hankiewicz
- Colorado Springs Center for the BioFrontiers Institute, University of Colorado, 1420 Austin Bluffs Pkwy, Colorado Springs, CO 80918, USA
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Jo YS, Abdullaev M, Jin GH, Swain BS, Lee B, Eom HS, Min SH, Kim SK, Kim YK, Yang SM. Sulfur-Mediated Synthesis of Spherical Nickel Nanoparticles in a Chemical Vapor Reactor. ACS OMEGA 2022; 7:43958-43964. [PMID: 36506157 PMCID: PMC9730454 DOI: 10.1021/acsomega.2c05281] [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: 08/17/2022] [Accepted: 10/25/2022] [Indexed: 06/17/2023]
Abstract
In this study, we investigated the effect of the sulfur content in the NiCl2 precursor on the shape of nickel nanoparticles (Ni-NPs) prepared by chemical vapor synthesis. We obtained spherical Ni-NPs when using anhydrous NiCl2 mixed with NiSO4 or Na2SO4 with a molar ratio of 0.002 as precursors without changing any other process parameters whereas faceted Ni-NPs when using only anhydrous NiCl2 as a precursor. First-principles calculations supported experimental results, which showed that NiSO4-mixed NiCl2 and Na2SO4-mixed NiCl2 precursors favored the growth of spherical NPs.
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Affiliation(s)
- Yong-Su Jo
- Functional
Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do25440, Republic of Korea
- Department
of Materials Science and Engineering, Korea
University, Seoul02841, Republic of Korea
| | - Mansurbek Abdullaev
- Korea
Research Institute of Chemical Technology, Daejeon34114, Republic of Korea
| | - Gwang-Hwa Jin
- Functional
Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do25440, Republic of Korea
- Department
of Materials Science and Engineering, Korea
University, Seoul02841, Republic of Korea
| | - Bhabani Sankar Swain
- Functional
Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do25440, Republic of Korea
| | - Byongpil Lee
- Rare
Metals Cell Group, Research Institute of
Industrial Science & Technology, Pohang, Gyeongsangbukdo37673, Republic of Korea
| | - Hyung-Sub Eom
- Rare
Metals Cell Group, Research Institute of
Industrial Science & Technology, Pohang, Gyeongsangbukdo37673, Republic of Korea
| | - Seok-Hong Min
- Korea
Institute of Industrial Technology Interdisciplinary Program, Gangneung-Wonju National University, Gangneung, Gangwon-do25457, Republic of Korea
| | - Seok Ki Kim
- Department
of Chemical Engineering, Ajou University, Suwon, Gyeonggi-do16499, Republic of Korea
| | - Young Keun Kim
- Department
of Materials Science and Engineering, Korea
University, Seoul02841, Republic of Korea
| | - Seung-Min Yang
- Functional
Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung, Gangwon-do25440, Republic of Korea
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Lynes DD, Chandrahalim H, Brown JM, Singh K, Bodily KT, Leedy KD. A statistical method to optimize the chemical etching process of zinc oxide thin films. ROYAL SOCIETY OPEN SCIENCE 2022; 9:211560. [PMID: 35950193 PMCID: PMC9346367 DOI: 10.1098/rsos.211560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Zinc oxide (ZnO) is an attractive material for microscale and nanoscale devices. Its desirable semiconductor, piezoelectric and optical properties make it useful in applications ranging from microphones to missile warning systems to biometric sensors. This work introduces a demonstration of blending statistics and chemical etching of thin films to identify the dominant factors and interaction between factors, and develop statistically enhanced models on etch rate and selectivity of c-axis-oriented nanocrystalline ZnO thin films. Over other mineral acids, ammonium chloride (NH4Cl) solutions have commonly been used to wet etch microscale ZnO devices because of their controllable etch rate and near-linear behaviour. Etchant concentration and temperature were found to have a significant effect on etch rate. Moreover, this is the first demonstration that has identified multi-factor interactions between temperature and concentration, and between temperature and agitation. A linear model was developed relating etch rate and its variance against these significant factors and multi-factor interactions. An average selectivity of 73 : 1 was measured with none of the experimental factors having a significant effect on the selectivity. This statistical study captures the significant variance observed by other researchers. Furthermore, it enables statistically enhanced microfabrication processes for other materials.
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Affiliation(s)
- David D. Lynes
- Department of Electrical and Computer Engineering, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH 45433, USA
| | - Hengky Chandrahalim
- Department of Electrical and Computer Engineering, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH 45433, USA
| | - Justin M. Brown
- Department of Electrical and Computer Engineering, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH 45433, USA
| | - Karanvir Singh
- Department of Electrical and Computer Engineering, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH 45433, USA
| | - Kyle T. Bodily
- Department of Electrical and Computer Engineering, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH 45433, USA
| | - Kevin D. Leedy
- Sensors Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433, USA
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Jo YS, Park HM, Jin GH, Swain BS, Min SH, Kim YK, Yang SM. Pure copper nanoparticles prepared by coating-assisted vapor phase synthesis without agglomeration. RSC Adv 2022; 12:27820-27825. [PMID: 36320232 PMCID: PMC9520393 DOI: 10.1039/d2ra05281d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/09/2022] [Indexed: 11/21/2022] Open
Abstract
Modern electronic devices, such as smartphones and electric vehicles, require multilayer ceramic capacitors (MLCCs), which comprise highly pure Cu terminations and Ni electrodes. Vapor-phase synthesis (VPS) is a promising method for synthesizing nanoparticles (NPs) with high purity and crystallinity. However, the agglomeration of the NPs occurs during their synthesis, which degrades the performance of the MLCC electrodes owing to several factors, including electrical shorts and low packing density. This paper proposes a coating-assisted VPS to inhibit agglomeration using potassium chloride (KCl) as the coating agent. The agglomeration ratio of the Cu NPs synthesized by in-flight coating with KCl at 950 °C significantly decreased from 48.20% to 3.80%, compared to without KCl coating. Furthermore, X-ray fluorescence and X-ray diffraction analyses confirmed that the KCl coating agent and residual copper chloride were removed by washing with ammonium hydroxide. Modern electronic devices, such as smartphones and electric vehicles, require multilayer ceramic capacitors (MLCCs), which comprise highly pure Cu terminations and Ni electrodes.![]()
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Affiliation(s)
- Yong-Su Jo
- Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung 25440, Gangwon-do, Republic of Korea
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Hye-Min Park
- Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung 25440, Gangwon-do, Republic of Korea
| | - Gwang-Hwa Jin
- Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung 25440, Gangwon-do, Republic of Korea
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Bhabani Sankar Swain
- Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung 25440, Gangwon-do, Republic of Korea
| | - Seok-Hong Min
- Korea Institute of Industrial Technology Interdisciplinary Program, Gangneung-Wonju National University, Gangneung 25457, Gangwon-do, Republic of Korea
| | - Young Keun Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Seung-Min Yang
- Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gangneung 25440, Gangwon-do, Republic of Korea
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