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Perelshtein I, Shoshani S, Jacobi G, Natan M, Dudchenko N, Perkas N, Tkachev M, Bengalli R, Fiandra L, Mantecca P, Ivanova K, Tzanov T, Banin E, Gedanken A. Protecting the Antibacterial Coating of Urinal Catheters for Improving Safety. ACS Appl Bio Mater 2024; 7:990-998. [PMID: 38226433 DOI: 10.1021/acsabm.3c00988] [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: 01/17/2024]
Abstract
Catheter-associated urinary tract infections (CAUTI) are among the most common bacterial infections associated with prolonged hospitalization and increased healthcare expenditures. Despite recent advances in the prevention and treatment of these infections, there are still many challenges remaining, among them the creation of a durable catheter coating, which prevents bacterial biofilm formation. The current work reports on a method of protecting medical tubing endowed with antibiofilm properties. Silicone catheters coated sonochemically with ZnO nanoparticles (NPs) demonstrated excellent antibiofilm effects. Toward approval by the European Medicines Agency, it was realized that the ZnO coating would not withstand the regulatory requirements of avoiding dissolution for 14 days in artificial urine examination. Namely, after exposure to urine for 14 days, the coating amount was reduced by 90%. Additional coatings with either carbon or silica maintained antibiofilm activity against Staphylococcus aureus while resisting dissolution in artificial urine for 14 days (C- or SiO2-protected catheters exhibited only 29% reduction). HR-SEM images of the protected catheters indicate the presence of the ZnO coating as well as the protective layer. Antibiofilm activity of all catheters was evaluated both before and after exposure to artificial urine. It was shown that before artificial urine exposure, all coated catheters showed high antibiofilm properties compared to the uncoated control. Exposure of ZnO-coated catheters, without the protective layer, to artificial urine had a significant effect exhibited by the decrease in antibiofilm activity by almost 2 orders of magnitude, compared to unexposed catheters. Toxicity studies performed using a reconstructed human epidermis demonstrated the safety of the improved coating. Exposure of the epidermis to ZnO catheter extracts in artificial urine affects tissue viability compared with control samples, which was not observed in the case of ZnO NPs coating with SiO2 or C. We suggest that silica and carbon coatings confer some protection against zinc ions release, improving ZnO coating safety.
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Affiliation(s)
- Ilana Perelshtein
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Sivan Shoshani
- The Mina and Everard Goodman Faculty of Life Sciences, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Gila Jacobi
- The Mina and Everard Goodman Faculty of Life Sciences, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Michal Natan
- The Mina and Everard Goodman Faculty of Life Sciences, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Nataliia Dudchenko
- Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Nina Perkas
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Maria Tkachev
- Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Rossella Bengalli
- Department of Earth and Environmental Sciences, Research Center POLARIS, University of Milano Bicocca, Milan 20126, Italy
| | - Luisa Fiandra
- Department of Earth and Environmental Sciences, Research Center POLARIS, University of Milano Bicocca, Milan 20126, Italy
| | - Paride Mantecca
- Department of Earth and Environmental Sciences, Research Center POLARIS, University of Milano Bicocca, Milan 20126, Italy
| | - Kristina Ivanova
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrasa, Spain
| | - Tzanko Tzanov
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, 08222 Terrasa, Spain
| | - Ehud Banin
- The Mina and Everard Goodman Faculty of Life Sciences, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Aharon Gedanken
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
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Saha A, Taragin S, Maiti S, Kravchuk T, Leifer N, Tkachev M, Noked M. Improved Cycling Stability of LiNi 0.8 Co 0.1 Mn 0.1 O 2 Cathode Material via Variable Temperature Atomic Surface Reduction with Diethyl Zinc. Small 2022; 18:e2104625. [PMID: 34882972 DOI: 10.1002/smll.202104625] [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: 08/03/2021] [Revised: 10/29/2021] [Indexed: 06/13/2023]
Abstract
High-Ni-rich layered oxides [e.g., LiNix Coy Mnz O2 ; x > 0.5, x + y + z = 1] are considered one of the most promising cathodes for high-energy-density lithium-ion batteries (LIB). However, extreme electrode-electrolyte reactions, several interfacial issues, and structural instability restrict their practical applicability. Here, a shortened unconventional atomic surface reduction (ASR) technique is demonstrated on the cathode surface as a derivative of the conventional atomic layer deposition (ALD) process, which brings superior cell performances. The atomic surface reaction (reduction process) between diethyl-zinc (as a single precursor) and Ni-rich NMC cathode [LiNi0.8 Co0.1 Mn0.1 O2 ; NCM811] material is carried out using the ALD reactor at different temperatures. The temperature dependency of the process through advanced spectroscopy and microscopy studies is demonstrated and it is shown that thin surface film is formed at 100 °C, whereas at 200 °C a gradual atomic diffusion of Zn ions from the surface to the near-surface regions is taking place. This unique near-surface penetration of Zn ions significantly improves the electrochemical performance of the NCM811 cathode. This approach paves the way for utilizing vapor phase deposition processes to achieve both surface coatings and near-surface doping in a single reactor to stabilize high-energy cathode materials.
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Affiliation(s)
- Arka Saha
- Department of Chemistry, Bar Ilan University, Ramat Gan, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan, Israel
| | - Sarah Taragin
- Department of Chemistry, Bar Ilan University, Ramat Gan, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan, Israel
| | - Sandipan Maiti
- Department of Chemistry, Bar Ilan University, Ramat Gan, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan, Israel
| | - Tatyana Kravchuk
- Surface Science Laboratory of Solid State Institute, Technion - Israel Institute of Technology, Haifa, 5290002, Israel
| | - Nicole Leifer
- Department of Chemistry, Bar Ilan University, Ramat Gan, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan, Israel
| | - Maria Tkachev
- Department of Chemistry, Bar Ilan University, Ramat Gan, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan, Israel
| | - Malachi Noked
- Department of Chemistry, Bar Ilan University, Ramat Gan, Israel
- Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan, Israel
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Edri E, Armon N, Greenberg E, Moshe-Tsurel S, Lubotzky D, Salzillo T, Perelshtein I, Tkachev M, Girshevitz O, Shpaisman H. Laser Printing of Multilayered Alternately Conducting and Insulating Microstructures. ACS Appl Mater Interfaces 2021; 13:36416-36425. [PMID: 34296861 PMCID: PMC8397236 DOI: 10.1021/acsami.1c06204] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 07/12/2021] [Indexed: 05/19/2023]
Abstract
Production of multilayered microstructures composed of conducting and insulating materials is of great interest as they can be utilized as microelectronic components. Current proposed fabrication methods of these microstructures include top-down and bottom-up methods, each having their own set of drawbacks. Laser-based methods were shown to pattern various materials with micron/sub-micron resolution; however, multilayered structures demonstrating conducting/insulating/conducting properties were not yet realized. Here, we demonstrate laser printing of multilayered microstructures consisting of conducting platinum and insulating silicon oxide layers by a combination of thermally driven reactions with microbubble-assisted printing. PtCl2 dissolved in N-methyl-2-pyrrolidone (NMP) was used as a precursor to form conducting Pt layers, while tetraethyl orthosilicate dissolved in NMP formed insulating silicon oxide layers identified by Raman spectroscopy. We demonstrate control over the height of the insulating layer between ∼50 and 250 nm by varying the laser power and number of iterations. The resistivity of the silicon oxide layer at 0.5 V was 1.5 × 1011 Ωm. Other materials that we studied were found to be porous and prone to cracking, rendering them irrelevant as insulators. Finally, we show how microfluidics can enhance multilayered laser microprinting by quickly switching between precursors. The concepts presented here could provide new opportunities for simple fabrication of multilayered microelectronic devices.
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Affiliation(s)
- Eitan Edri
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Nina Armon
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Ehud Greenberg
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Shlomit Moshe-Tsurel
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Danielle Lubotzky
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Tommaso Salzillo
- Department
of Chemical and Biological Physics, Weizmann
Institute of Science, Rehovot 76100, Israel
| | - Ilana Perelshtein
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Maria Tkachev
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Olga Girshevitz
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
| | - Hagay Shpaisman
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
- Institute
of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat
Gan 5290002, Israel
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Tatikonda AK, Tkachev M, Naaman R. A highly sensitive hybrid organic–inorganic sensor for continuous monitoring of hemoglobin. Biosens Bioelectron 2013; 45:201-5. [DOI: 10.1016/j.bios.2013.01.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Revised: 01/22/2013] [Accepted: 01/23/2013] [Indexed: 10/27/2022]
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Bavli D, Tkachev M, Piwonski H, Capua E, de Albuquerque I, Bensimon D, Haran G, Naaman R. Detection and quantification through a lipid membrane using the molecularly controlled semiconductor resistor. Langmuir 2012; 28:1020-8. [PMID: 22126281 DOI: 10.1021/la203502b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The detection of covalent and noncovalent binding events between molecules and biomembranes is a fundamental goal of contemporary biochemistry and analytical chemistry. Currently, such studies are performed routinely using fluorescence methods, surface-plasmon resonance spectroscopy, and electrochemical methods. However, there is still a need for novel sensitive miniaturizable detection methods where the sample does not have to be transferred to the sensor, but the sensor can be brought into contact with the sample studied. We present a novel approach for detection and quantification of processes occurring on the surface of a lipid bilayer membrane, by monitoring the current change through the n-type GaAs-based molecularly controlled semiconductor resistor (MOCSER), on which the membrane is adsorbed. Since GaAs is susceptible to etching in an aqueous environment, a protective thin film of methoxysilane was deposited on the device. The system was found to be sensitive enough to allow monitoring changes in pH and in the concentration of amino acids in aqueous solution on top of the membrane. When biotinylated lipids were incorporated into the membrane, it was possible to monitor the binding of streptavidin or avidin. The device modified with biotin-streptavidin complex was capable of detecting the binding of streptavidin antibodies to immobilized streptavidin with high sensitivity and selectivity. The response depends on the charge on the analyte. These results open the way to facile electrical detection of protein-membrane interactions.
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Affiliation(s)
- Danny Bavli
- Department of Chemical Physics, Weizmann Institute of Science, Rehovot, 76100, Israel
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