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Prinz Setter O, Snoyman I, Shalash G, Segal E. Gold Nanorod-Incorporated Halloysite Nanotubes Functionalized with Antibody for Superior Antibacterial Photothermal Treatment. Pharmaceutics 2022; 14:pharmaceutics14102094. [PMID: 36297528 PMCID: PMC9611827 DOI: 10.3390/pharmaceutics14102094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 12/02/2022] Open
Abstract
The global spread of antibiotic-resistant strains, and the need to protect the microflora from non-specific antibiotics require more effective and selective alternatives. In this work, we demonstrate for the first time a superior antibacterial photothermal effect of plasmonic gold nanorods (AuNRs) via their incorporation onto natural clay halloysite nanotubes (HNTs), which were functionalized with anti-E. coli antibodies (Ab-HNTs). AuNRs were incorporated onto the Ab-HNTs through a facile freeze-thaw cycle, and antibody integrity following the incorporation was confirmed via infrared spectroscopy and fluorescence immunolabeling. The incorporation efficiency was studied using UV-Vis absorption and transmission electron microscopy (TEM). Mixtures of E. coli and AuNR-Ab-HNTs hybrids or free AuNRs were irradiated with an 808 nm laser at 3-4 W cm-2, and the resulting photothermal antibacterial activity was measured via plate count. The irradiated AuNR-Ab-HNTs hybrids exerted an 8-fold higher antibacterial effect compared to free AuNR under 3.5 W cm-2; whereas the latter induced a 6 °C-higher temperature elevation. No significant antibacterial activity was observed for the AuNR-Ab-HNTs hybrid against non-target bacteria species (Serratia marcescens and Staphylococcus epidermidis). These findings are ascribed to the localization of the photothermal ablation due to the binding of the antibody-functionalized clay to its target bacteria, as supported through TEM imaging. In the future, the HNTs-based selective carriers presented herein could be tailored with other antibacterial nanoparticles or against another microorganism via the facile adjustment of the immobilized antibody.
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Affiliation(s)
- Ofer Prinz Setter
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Technion City, Haifa 3200003, Israel
| | - Iser Snoyman
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Technion City, Haifa 3200003, Israel
| | - Ghazal Shalash
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Technion City, Haifa 3200003, Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Technion City, Haifa 3200003, Israel
- The Russel Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Technion City, Haifa 3200003, Israel
- Correspondence: ; Tel.: +972-4-829-5071
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Stavitskaya A, Khusnetdenova E, Vinokurov V, Lvov Y, Fakhrullin R. Prokaryotic and eukaryotic toxicity of halloysite decorated with photoactive nanoparticles. Chem Commun (Camb) 2022; 58:7719-7729. [PMID: 35781299 DOI: 10.1039/d2cc02439j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of new approaches to treat the growing antibiotic resistance of pathogenic bacterial species is an important task to ensure the future safety of society. Utilization of irradiation of different wavelengths together with nanostructured materials based on metal containing nanoparticles may result in synergetic antibacterial effects. In this paper we aim to show the main conceptions of light-assisted bacteria deactivation techniques and prospects of application of natural clay nanotubes as a carrier for scalable photoactive antibacterial nanomaterials. Halloysite aluminosilicate nanotubes (ca 50 nm diameter, ca. 1.0 μm length) are safe and biocompatible natural materials produced in tons. Their application as a template or a carrier for metal nanoparticles, QDs and organic compounds has already found application in biomedical research, cosmetics, polymers, coatings, catalysis and related applications. Here, we show the toxicity of halloysite decorated with photoactive nanoparticles on prokaryotic and eukaryotic cells. The formation of light active nanostructured materials with this clay as the base is a promising tool for solving the problem of the antibiotic resistance of microorganisms.
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Affiliation(s)
- Anna Stavitskaya
- Department of Physical and Colloid Chemistry, Gubkin State University, Moscow, Russian Federation
| | - Elnara Khusnetdenova
- Department of Physical and Colloid Chemistry, Gubkin State University, Moscow, Russian Federation
| | - Vladimir Vinokurov
- Department of Physical and Colloid Chemistry, Gubkin State University, Moscow, Russian Federation
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Technical University, Ruston, USA
| | - Rawil Fakhrullin
- Department of Physical and Colloid Chemistry, Gubkin State University, Moscow, Russian Federation.,Institute of Fundamental Medicine and Biology, Kazan Federal University, Republic of Tatarstan, Russian Federation.
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3
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Park S, Ryu J, Cho H, Sohn D. Halloysite nanotubes loaded with HKUST-1 for CO2 adsorption. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Abstract
The use of clay minerals as catalyst is renowned since ancient times. Among the different clays used for catalytic purposes, halloysite nanotubes (HNTs) represent valuable resources for industrial applications. This special tubular clay possesses high stability and biocompatibility, resistance against organic solvents, and most importantly be available in large amounts at a low cost. Therefore, HNTs can be efficiently used as catalysts themselves or supports for metal nanoparticles in several catalytic processes. This review reports a comprehensive overview of the relevant advances in the use of halloysite in catalysis, focusing the attention on the last five years.
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Zhang M, Su X, Ma L, Khan A, Wang L, Wang J, Maloletnev AS, Yang C. Promotion effects of halloysite nanotubes on catalytic activity of Co 3O 4 nanoparticles toward reduction of 4-nitrophenol and organic dyes. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123870. [PMID: 33264942 DOI: 10.1016/j.jhazmat.2020.123870] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 08/17/2020] [Accepted: 08/28/2020] [Indexed: 06/12/2023]
Abstract
Nanosized clay minerals have been widely used as efficient supports to immobilize catalyst nanoparticles. However, clay support-induced interactions and their influences on the catalyst structure and performance currently have not been fully understood. Here, Co3O4 nanoparticles supported on halloysite nanotubes (HNTs) were synthesized by a facile deposition-precipitation approach followed by thermal treatment. A series of characterization methods were employed for the Co3O4/HNTs hybrid nanostructure to identify its crystal phase, chemical composition, morphology, specific surface area, surface chemical states, and redox property. Characterization results showed that HNTs not only impacted the particle size of Co3O4 nanoparticles, but also modified surface chemical surface states of the later, which ultimately promoted the effective catalytic reduction of 4-nitrophenol (4-NP) and azo dyes with sodium borohydride. The interaction between HNTs and Co3O4 nanoparticles was found to shorten the induction period of the 4-NP reduction. Meanwhile, the Co3O4/HNTs catalyst for the 4-NP reduction achieved an apparent rate constant of 0.265 min-1 and an activity parameter of 1.63 × 104 min-1 g-1 as well as a turnover frequency of 4.37 min-1. In addition, Co3O4/HNTs showed an improvement in reduction efficiency of the azo dyes when compared to bare Co3O4 nanoparticles.
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Affiliation(s)
- Min Zhang
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China
| | - Xintai Su
- Engineering and Technology Research Center for Environmental Nanomaterials, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Lida Ma
- Xinjiang De'an Environmental Protection Technologies Inc, Urumqi 830046, China
| | - Aslam Khan
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China
| | - Lu Wang
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China; Xinjiang De'an Environmental Protection Technologies Inc, Urumqi 830046, China
| | - Jide Wang
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China
| | | | - Chao Yang
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China; Xinjiang De'an Environmental Protection Technologies Inc, Urumqi 830046, China.
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7
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Gold-Based Nanoparticles on Amino-Functionalized Mesoporous Silica Supports as Nanozymes for Glucose Oxidation. Catalysts 2020. [DOI: 10.3390/catal10030333] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The transformation of glucose represents a topic of great interest at different levels. In the first place, glucose is currently conceived as a green feedstock for the sustainable production of chemicals. Secondly, the depletion of glucose at the cellular level is currently envisioned as a promising strategy to treat and alter the erratic metabolism of tumoral cells. The use of natural enzymes offers multiple advantages in terms of specificity towards the glucose substrate but may lack sufficient robustness and recyclability beyond the optimal operating conditions of these natural systems. In the present work, we have evaluated the potential use of an inorganic based nanohybrid containing gold nanoparticles supported onto ordered mesoporous supports. We have performed different assays that corroborate the enzyme-mimicking response of these inorganic surrogates towards the selective conversion of glucose into gluconic acid and hydrogen peroxide. Moreover, we conclude that these enzyme-like mimicking surrogates can operate at different pH ranges and under mild reaction conditions, can be recycled multiple times and maintain excellent catalytic response in comparison with other gold-based catalysts.
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Mansour A, Sayyed MI, Mahmoud KA, Şakar E, Kovaleva EG. Modified halloysite minerals for radiation shielding purposes. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2020. [DOI: 10.1080/16878507.2019.1699680] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Asmaa Mansour
- Department of Organic Synthesis, Ural Federal University, Yekaterinburg, Russia
| | - M I Sayyed
- Physics Department, University of Tabuk, Tabuk, Saudi Arabia
| | - K A Mahmoud
- Nuclear Materials Authority, Maadi, Cairo, Egypt
- Department of Nuclear Power Plantes and Renewable Energy, Ural Federal University, Yekaterinburg, Russia
| | - Erdem Şakar
- Faculty of Science, Department of Physics, Atatürk University, Erzurum, Turkey
| | - E G Kovaleva
- Department of Organic Synthesis, Ural Federal University, Yekaterinburg, Russia
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9
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Suarez H, Ramirez A, Bueno-Alejo CJ, Hueso JL. Silver-Copper Oxide Heteronanostructures for the Plasmonic-Enhanced Photocatalytic Oxidation of N-Hexane in the Visible-NIR Range. MATERIALS 2019; 12:ma12233858. [PMID: 31766651 PMCID: PMC6926640 DOI: 10.3390/ma12233858] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/14/2019] [Accepted: 11/20/2019] [Indexed: 12/17/2022]
Abstract
Volatile organic compounds (VOCs) are recognized as hazardous contributors to air pollution, precursors of multiple secondary byproducts, troposphere aerosols, and recognized contributors to respiratory and cancer-related issues in highly populated areas. Moreover, VOCs present in indoor environments represent a challenging issue that need to be addressed due to its increasing presence in nowadays society. Catalytic oxidation by noble metals represents the most effective but costly solution. The use of photocatalytic oxidation has become one of the most explored alternatives given the green and sustainable advantages of using solar light or low-consumption light emitting devices. Herein, we have tried to address the shortcomings of the most studied photocatalytic systems based on titania (TiO2) with limited response in the UV-range or alternatively the high recombination rates detected in other transition metal-based oxide systems. We have developed a silver-copper oxide heteronanostructure able to combine the plasmonic-enhanced properties of Ag nanostructures with the visible-light driven photoresponse of CuO nanoarchitectures. The entangled Ag-CuO heteronanostructure exhibits a broad absorption towards the visible-near infrared (NIR) range and achieves total photo-oxidation of n-hexane under irradiation with different light-emitting diodes (LEDs) specific wavelengths at temperatures below 180 °C and outperforming its thermal catalytic response or its silver-free CuO illuminated counterpart.
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Affiliation(s)
- Hugo Suarez
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering, C/Poeta Mariano Esquillor, s/n; Campus Rio Ebro, Edificio I+D, 50018 Zaragoza, Spain
| | - Adrian Ramirez
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering, C/Poeta Mariano Esquillor, s/n; Campus Rio Ebro, Edificio I+D, 50018 Zaragoza, Spain
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), 23955 Thuwal, Saudi Arabia
| | - Carlos J. Bueno-Alejo
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering, C/Poeta Mariano Esquillor, s/n; Campus Rio Ebro, Edificio I+D, 50018 Zaragoza, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Jose L. Hueso
- Institute of Nanoscience of Aragon (INA) and Department of Chemical and Environmental Engineering, C/Poeta Mariano Esquillor, s/n; Campus Rio Ebro, Edificio I+D, 50018 Zaragoza, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
- Instituto de Ciencia de Materiales de Aragon (ICMA), Consejo Superior de Investigaciones Cientificas (CSIC-University of Zaragoza), 50018 Zaragoza, Spain
- Correspondence:
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10
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Abu El-Soad AM, Sayyed MI, Mahmoud KA, Şakar E, Kovaleva EG. Simulation studies for gamma ray shielding properties of Halloysite nanotubes using MCNP-5 code. Appl Radiat Isot 2019; 154:108882. [PMID: 31546100 DOI: 10.1016/j.apradiso.2019.108882] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/21/2019] [Accepted: 09/01/2019] [Indexed: 01/15/2023]
Abstract
Halloysite clay is a mineral found in natural and it has many applications in chemistry (for catalytic and extraction) and also in the medical field (for drugs delivery), so it is important to study the shielding properties of natural and modified nanotube Halloysite. The mass attenuation coefficient was simulated for natural Halloysite clay mineral and four others modified halloysite nanotubes using MCNP 5 code for incident gamma ray energies between 0.015 and 15 MeV. The mass attenuation coefficient was also calculated using the XCOM database for studied samples in the same energy range. The results obtained by the MCNP simulation were close to those obtained by XCOM calculation. Moreover, other shielding properties that described the interaction of incident gamma rays with Halloysite composites, such as the HVL, MFP, Zeff, and Neff were calculated using the simulated μm for gamma rays between 0.015 and 15 MeV.
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Affiliation(s)
- A M Abu El-Soad
- Ural Federal University, St. Mira, 19, 620002, Yekaterinburg, Russia; Nuclear Materials Authority, Maadi, Cairo, Egypt.
| | - M I Sayyed
- Physics Department, University of Tabuk, Tabuk, Saudi Arabia
| | - K A Mahmoud
- Ural Federal University, St. Mira, 19, 620002, Yekaterinburg, Russia; Nuclear Materials Authority, Maadi, Cairo, Egypt
| | - Erdem Şakar
- Faculty of Science, Department of Physics, Atatürk University, 25240, Erzurum, Turkey
| | - E G Kovaleva
- Ural Federal University, St. Mira, 19, 620002, Yekaterinburg, Russia
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11
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Lvov Y, Panchal A, Fu Y, Fakhrullin R, Kryuchkova M, Batasheva S, Stavitskaya A, Glotov A, Vinokurov V. Interfacial Self-Assembly in Halloysite Nanotube Composites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:8646-8657. [PMID: 30682887 DOI: 10.1021/acs.langmuir.8b04313] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A self-assembly of clay nanotubes in functional arrays for the production of organized organic/inorganic heterostructures is described. These 50-nm-diameter natural alumosilicate nanotubes are biocompatible. Halloysite allows for 10-20 wt % chemical/drug loading into the inner lumen, and it gives an extended release for days and months (anticorrosion, self-healing, flame-retardant, antifouling, and antibacterial composites). The structured surfaces of the oriented nanotube micropatterns enhance interactions with biological cells, improving their capture and inducing differentiation in stem cells. An encapsulation of the cells with halloysite enables control of their growth and proliferation. This approach was also developed for spill petroleum bioremediation as a synergistic process with Pickering oil emulsification. We produced 2-5-nm-diameter particles (Au, Ag, Pt, Co, Ru, Cu-Ni, Fe3O4, ZrO2, and CdS) selectively inside or outside the aluminosilicate clay nanotubes. The catalytic hydrogenation of benzene and phenol, hydrogen production, impacts of the metal core-shell architecture, the metal particle size, and the seeding density were optimized for high-efficiency processes, exceeding the competitive industrial formulations. These core-shell mesocatalysts are based on a safe and cheap natural clay nanomaterial and may be scaled up for industrial applications.
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Affiliation(s)
- Yuri Lvov
- Institute for Micromanufacturing , Louisiana Tech University , Ruston , Louisiana 71272 , United States
- I. Gubkin Russian State University of Oil and Gas , Moscow 119991 , Russia
| | - Abhishek Panchal
- Institute for Micromanufacturing , Louisiana Tech University , Ruston , Louisiana 71272 , United States
| | - Ye Fu
- Institute for Micromanufacturing , Louisiana Tech University , Ruston , Louisiana 71272 , United States
- School of Materials Science and Engineering , Beijing Technology and Business University , Beijing , China
| | - Rawil Fakhrullin
- Institute for Micromanufacturing , Louisiana Tech University , Ruston , Louisiana 71272 , United States
- Bionanotechnology Lab , Kazan Federal University , Kazan 420008 , Republic of Tatarstan , Russian Federation
| | - Marina Kryuchkova
- Bionanotechnology Lab , Kazan Federal University , Kazan 420008 , Republic of Tatarstan , Russian Federation
| | - Svetlana Batasheva
- Bionanotechnology Lab , Kazan Federal University , Kazan 420008 , Republic of Tatarstan , Russian Federation
| | - Anna Stavitskaya
- I. Gubkin Russian State University of Oil and Gas , Moscow 119991 , Russia
| | - Aleksandr Glotov
- I. Gubkin Russian State University of Oil and Gas , Moscow 119991 , Russia
| | - Vladimir Vinokurov
- I. Gubkin Russian State University of Oil and Gas , Moscow 119991 , Russia
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12
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Stavitskaya A, Batasheva S, Vinokurov V, Fakhrullina G, Sangarov V, Lvov Y, Fakhrullin R. Antimicrobial Applications of Clay Nanotube-Based Composites. NANOMATERIALS 2019; 9:nano9050708. [PMID: 31067741 PMCID: PMC6567215 DOI: 10.3390/nano9050708] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 04/28/2019] [Accepted: 04/30/2019] [Indexed: 12/25/2022]
Abstract
Halloysite nanotubes with different outer surface/inner lumen chemistry (SiO2/Al2O3) are natural objects with a 50 nm diameter hollow cylindrical structure, which are able to carry functional compounds both inside and outside. They are promising for biological applications where their drug loading capacity combined with a low toxicity ensures the safe interaction of these nanomaterials with living cells. In this paper, the antimicrobial properties of the clay nanotube-based composites are reviewed, including applications in microbe-resistant biocidal textile, paints, filters, and medical formulations (wound dressings, drug delivery systems, antiseptic sprays, and tissue engineering scaffolds). Though halloysite-based antimicrobial materials have been widely investigated, their application in medicine needs clinical studies. This review suggests the scalable antimicrobial nano/micro composites based on natural tubule clays and outlines research and development perspectives in the field.
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Affiliation(s)
- Anna Stavitskaya
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Svetlana Batasheva
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia.
| | - Vladimir Vinokurov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Gölnur Fakhrullina
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia.
| | - Vadim Sangarov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71270, USA.
| | - Rawil Fakhrullin
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia.
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Bottega-Pergher B, Graus J, Bueno-Alejo CJ, Hueso JL. Triangular and Prism-Shaped Gold-Zinc Oxide Plasmonic Nanostructures: In situ Reduction, Assembly, and Full-Range Photocatalytic Performance. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900213] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Bruno Bottega-Pergher
- Department of Chemical and Environmental Engineering (IQTMA) and Institute of Nanoscience of Aragon (INA); University of Zaragoza; Campus Rio Ebro, R+D Building, C/Poeta M. Esquillor, s/n Zaragoza Spain
| | - Javier Graus
- Department of Chemical and Environmental Engineering (IQTMA) and Institute of Nanoscience of Aragon (INA); University of Zaragoza; Campus Rio Ebro, R+D Building, C/Poeta M. Esquillor, s/n Zaragoza Spain
| | - Carlos J. Bueno-Alejo
- Department of Chemical and Environmental Engineering (IQTMA) and Institute of Nanoscience of Aragon (INA); University of Zaragoza; Campus Rio Ebro, R+D Building, C/Poeta M. Esquillor, s/n Zaragoza Spain
| | - Jose L. Hueso
- Department of Chemical and Environmental Engineering (IQTMA) and Institute of Nanoscience of Aragon (INA); University of Zaragoza; Campus Rio Ebro, R+D Building, C/Poeta M. Esquillor, s/n Zaragoza Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN); 28029 Madrid Spain
- Instituto de Ciencia de Materiales de Aragon (ICMA); Consejo Superior de Investigaciones Científicas (CSIC-U.Zaragoza); Zaragoza Spain
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Zhang J, Luo X, Wu YP, Wu F, Li YF, He RR, Liu M. Rod in Tube: A Novel Nanoplatform for Highly Effective Chemo-Photothermal Combination Therapy toward Breast Cancer. ACS APPLIED MATERIALS & INTERFACES 2019; 11:3690-3703. [PMID: 30618237 DOI: 10.1021/acsami.8b17533] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Gold nanorods (GNRs) and doxorubicin (DOX) were loaded into the lumen of halloysite nanotubes (HNTs) via a rapid synthesis process (2 min) and physical adsorption. The targeting molecules of folic acid (FA) are then conjugated to HNTs via reactions with bovine serum albumin (BSA). The formation of GNRs in HNTs was verified by different techniques. Au-HNT-DOX@BSA-FA shows a maximum temperature of 26.8 °C rising after 8 min of 808 nm laser irradiation under 0.8 W cm-2. The functionalized HNTs exhibited stronger chemotherapeutic effect under laser irradiation as the laser could promote the release of DOX and temperature rising. Au-HNT-DOX@BSA-FA-treated MCF-7 cells exhibited a survival rate of 7.4% after laser irradiation. Au-HNT-DOX@BSA-FA treatment does not induce obvious toxicity in blood biochemistry, liver, and kidney function in normal mice. In vivo chemo-photothermal treatment toward 4T1-bearing mice suggested that Au-HNT-DOX@BSA-FA exhibited remarkable tumor-targeted efficiency and good controlled release effect for DOX. Also, the nanoparticles exhibited a rapid photothermal performance and an ability to inhibit the growth of tumors. Because of the synergistic effect of chemical-photothermal therapy, the toxicity of DOX to normal tissues was reduced on the premise of ensuring the same curative effect with a low dosage of 0.32 mg kg-1. This novel chemo-photothermal therapy nanoplatform provided a safe, rapid, effective, and cheap choice for the treatment of breast tumors both in vitro and in vivo.
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15
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Massaro M, Colletti CG, Fiore B, La Parola V, Lazzara G, Guernelli S, Zaccheroni N, Riela S. Gold nanoparticles stabilized by modified halloysite nanotubes for catalytic applications. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4665] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Marina Massaro
- Dipartimento STEBICEF, Sez. Chimica; Università degli Studi di Palermo, Viale delle Scienze; Ed. 17, 90128 Palermo Italy
| | - Carmelo G. Colletti
- Dipartimento STEBICEF, Sez. Chimica; Università degli Studi di Palermo, Viale delle Scienze; Ed. 17, 90128 Palermo Italy
| | - Bruno Fiore
- Dipartimento STEBICEF, Sez. Chimica; Università degli Studi di Palermo, Viale delle Scienze; Ed. 17, 90128 Palermo Italy
| | - Valeria La Parola
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR; Via Ugo La Malfa 153, 90146 Palermo Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica; Università degli Studi di Palermo, Viale delle Scienze; Ed. 17, 90128 Palermo Italy
| | - Susanna Guernelli
- Dipartimento di Chimica ‘G. Ciamician’; Università degli Studi di Bologna; Via S. Giacomo 11, 40126 Bologna Italy
| | - Nelsi Zaccheroni
- Dipartimento di Chimica ‘G. Ciamician’; Università degli Studi di Bologna; Via S. Giacomo 11, 40126 Bologna Italy
| | - Serena Riela
- Dipartimento STEBICEF, Sez. Chimica; Università degli Studi di Palermo, Viale delle Scienze; Ed. 17, 90128 Palermo Italy
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In-Situ Deposition of Plasmonic Gold Nanotriangles and Nanoprisms onto Layered Hydroxides for Full-Range Photocatalytic Response towards the Selective Reduction of p-Nitrophenol. Catalysts 2018. [DOI: 10.3390/catal8090354] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this work, we present photocatalysis as a greener alternative to conventional catalysis where harsh reaction conditions, temperature and/or pressure are needed. Photodegradation of organic pollutants is a cost-effective, eco-friendly solution for the decontamination of water and air, and is a field that has been continuously growing over the last decade. Plasmonic metal nanoparticles absorb light irradiation that is transferred to the chemical reaction in a different fashion. Furthermore, plasmonic nanostructures can be combined with other materials, such as semiconductors or a basic support, to create hybrid systems capable of overcoming certain challenges that photocatalysis is facing nowadays and to expand the photocatalytic response towards the whole visible-near infrared (Vis-NIR) ranges. The main objective of this work has been to in-situ synthesize plasmonic anisotropic gold nanoparticles onto hydrotalcite (HT) and calcined hydrotalcite (CHT) supports by way of a sequential deposition-reduction (DR) process and to evaluate their efficiency as heterogeneous catalysts towards the selective oxidation of p-nitrophenol (hereafter 4-NP), a well-known model contaminant, either in the absence or the presence of full-range light irradiation sources (LEDs) spanning the whole UV-Vis-NIR range. Special attention has been paid to the optimization of the catalyst preparation parameters, including the pH and the concentration of reducing and stabilizing agents. Interestingly, the use of thermally modified hydrotalcites has enabled a strong metal-support interaction to induce the preferential formation of triangular-shaped Au nanoparticles with ca. 0.8 wt.% loading while increasing the colloidal stability and surface area of the catalyst with respect to the commercial untreated HT supports.
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17
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Passey P, Singh M, Verma SK, Bhattacharya D, Mehta R. Steady shear and dynamic strain thickening of halloysite nanotubes and fumed silica shear thickening composite. JOURNAL OF POLYMER ENGINEERING 2018. [DOI: 10.1515/polyeng-2018-0043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Developing the shear thickening fluids (STF) which can be used for soft body armours requires an in depth study of various parameters related to its constituents so that a high critical viscosity along with high critical shear rate can be obtained. Shape of the constituting particles is one such important parameter. Elongated and nanosize particles provide high critical viscosity to the fluid, whereas spherical particles show high critical shear rates. STF were prepared using halloysite (Hal) nanotubes of different concentrations with fumed silica (spheres) and their rheological properties were studied. A better non-flocculated structure was obtained at 1% Hal in 20% fumed silica composition, exhibiting a critical viscosity of 25 Pas at a critical shear rate 160 s−1 as compared to that of only spherical particle STF (10 Pas and 200 s−1). The oscillatory tests revealed that this composition, with a better consistent reproducible behaviour and better stability than the STF without Hal, would be suitable as a high impact resistant material. Gel formation does not take place, rather the fluid behaves like a dispersed sol, making it a better choice for using with protective fabrics. The rheology was studied at different temperatures ranging from 0°C to 55°C.
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Affiliation(s)
- Pavni Passey
- Thapar Institute of Engineering and Technology , Department of Chemical Engineering , Patiala, 147004 Punjab , India
| | - Mansi Singh
- Thapar Institute of Engineering and Technology , Department of Chemical Engineering , Patiala, 147004 Punjab , India
| | - Sanjeev K. Verma
- Terminal Ballistics Research Laboratory, Sector 30 , Chandigarh , India
| | | | - Rajeev Mehta
- Thapar Institute of Engineering and Technology , Department of Chemical Engineering , Patiala, 147004 Punjab , India
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18
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Stavitskaya AV, Novikov AA, Kotelev MS, Kopitsyn DS, Rozhina EV, Ishmukhametov IR, Fakhrullin RF, Ivanov EV, Lvov YM, Vinokurov VA. Fluorescence and Cytotoxicity of Cadmium Sulfide Quantum Dots Stabilized on Clay Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E391. [PMID: 29857546 PMCID: PMC6026934 DOI: 10.3390/nano8060391] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 05/26/2018] [Accepted: 05/28/2018] [Indexed: 11/16/2022]
Abstract
Quantum dots (QD) are widely used for cellular labeling due to enhanced brightness, resistance to photobleaching, and multicolor light emissions. CdS and CdxZn₁-xS nanoparticles with sizes of 6⁻8 nm were synthesized via a ligand assisted technique inside and outside of 50 nm diameter halloysite clay nanotubes (QD were immobilized on the tube's surface). The halloysite⁻QD composites were tested by labeling human skin fibroblasts and prostate cancer cells. In human cell cultures, halloysite⁻QD systems were internalized by living cells, and demonstrated intense and stable fluorescence combined with pronounced nanotube light scattering. The best signal stability was observed for QD that were synthesized externally on the amino-grafted halloysite. The best cell viability was observed for CdxZn₁-xS QD immobilized onto the azine-grafted halloysite. The possibility to use QD clay nanotube core-shell nanoarchitectures for the intracellular labeling was demonstrated. A pronounced scattering and fluorescence by halloysite⁻QD systems allows for their promising usage as markers for biomedical applications.
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Affiliation(s)
- Anna V Stavitskaya
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, Moscow 119991, Russia.
| | - Andrei A Novikov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, Moscow 119991, Russia.
| | - Mikhail S Kotelev
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, Moscow 119991, Russia.
| | - Dmitry S Kopitsyn
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, Moscow 119991, Russia.
| | - Elvira V Rozhina
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia.
| | - Ilnur R Ishmukhametov
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia.
| | - Rawil F Fakhrullin
- Bionanotechnology Lab, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia.
| | - Evgenii V Ivanov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, Moscow 119991, Russia.
| | - Yuri M Lvov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, Moscow 119991, Russia.
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71272, USA.
| | - Vladimir A Vinokurov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, Moscow 119991, Russia.
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19
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Lazzara G, Cavallaro G, Panchal A, Fakhrullin R, Stavitskaya A, Vinokurov V, Lvov Y. An assembly of organic-inorganic composites using halloysite clay nanotubes. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2018.01.002] [Citation(s) in RCA: 267] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Yang M, Xiong X, He R, Luo Y, Tang J, Dong J, Lu H, Yu J, Guan H, Zhang J, Chen Z, Liu M. Halloysite Nanotube-Modified Plasmonic Interface for Highly Sensitive Refractive Index Sensing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5933-5940. [PMID: 29393620 DOI: 10.1021/acsami.7b16511] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We propose and demonstrate a novel strategy to modify the plasmonic interface by using a thin layer of halloysite nanotubes (HNTs). The modified surface plasmon resonance (SPR) sensor achieves a greatly improved sensitivity because the large surface area and high refractive index of the HNTs layer significantly increase the probing electric field intensity and hence the measurement sensitivity. More significantly, the thickness of the HNTs layer can be tailored by spraying different concentrations of HNTs ethanol suspension. The proposed sensors show significant superiority in terms of the highest sensitivity (10431 nm/RIU) and the enhancement fold (5.6-folds) over those reported previously. Additionally, the proposed approach is a chemical-free and environment-friendly modification method for the sensor interface, without additional chemical or biological amplification steps (no toxic solvents are used). These unique features make the proposed HNTs-SPR biosensor a simple, biocompatible, and low-cost platform for the trace-level detection of biochemical species in a rapid, sensitive, and nondestructive manner.
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Affiliation(s)
- Mei Yang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Xin Xiong
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Rui He
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Yunhan Luo
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Jieyuan Tang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Jiangli Dong
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Huihui Lu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Jianhui Yu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Heyuan Guan
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Jun Zhang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Zhe Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
| | - Mingxian Liu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, ‡Department of Materials Science and Engineering, §Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, and ∥Key Laboratory of Visible Light Communications of Guangzhou, Jinan University , Guangzhou 510632, China
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21
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Vinokurov VA, Stavitskaya AV, Chudakov YA, Glotov AP, Ivanov EV, Gushchin PA, Lvov YM, Maximov AL, Muradov AV, Karakhanov EA. Core-shell nanoarchitecture: Schiff-base assisted synthesis of ruthenium in clay nanotubes. PURE APPL CHEM 2018. [DOI: 10.1515/pac-2017-0913] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Natural halloysite clay nanotubes were used as a template for clay/Ru core-shell nanostructure synthesis. Ru-nanoparticles were produced via a ligand-assisted metal ion intercalation technique. Schiff bases formed from different organic compounds proved to be effective ligands for the metal interfacial complexation which then was converted to Ru particles. This produces a high amount of intercalated metal nanoparticles in the tube’s interior with more that 90% of the sample loaded with noble metal. Depending on the selection of organic linkers, we filled the tube’s lumen with 2 or 3.5-nm diameter Ru particles, or even larger metal clusters. Produced nanocomposites are very efficient in reactions of hydrogenation of aromatic compounds, as tested for phenol and cresols hydrogenation.
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Affiliation(s)
| | | | | | | | - Evgeniy V. Ivanov
- Gubkin Russian State University of Oil and Gas , Moscow 119991 , Russia
| | - Pavel A. Gushchin
- Gubkin Russian State University of Oil and Gas , Moscow 119991 , Russia
| | - Yuri M. Lvov
- Gubkin Russian State University of Oil and Gas , Moscow 119991 , Russia
- Louisiana Tech University , Ruston, LA 71272 , USA
| | - Anton L. Maximov
- Lomonosov Moscow State University , Department of Chemistry , 119991, Leninskie Gory, 1, Bld. 1 , Moscow , Russia
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences , 119991, Leninsky prosp., 29 , Moscow , Russia
| | | | - Eduard A. Karakhanov
- Lomonosov Moscow State University , Department of Chemistry , 119991, Leninskie Gory, 1, Bld. 1 , Moscow , Russia
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22
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Cavallaro G, Lazzara G, Milioto S, Parisi F. Halloysite Nanotubes for Cleaning, Consolidation and Protection. CHEM REC 2018; 18:940-949. [PMID: 29320613 DOI: 10.1002/tcr.201700099] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 01/02/2018] [Indexed: 11/06/2022]
Abstract
Herein, we report our recent research concerning the development of halloysite based protocols for cleaning, consolidation and protection purposes. Surface modification of halloysite cavity by anionic surfactants was explored to fabricate inorganic micelles able to solubilize hydrophobic contaminants. Hybrid dispersions based on halloysite and ecocompatible polymers were tested as consolidants for paper and waterlogged archaeological woods. Encapsulation of deacidifying and flame retardant agents within the halloysite lumen was conducted with aim to obtain nanofiller with a long-term protection ability. The results prove the suitability and versatility of halloysite nanotubes, which are perspective inorganic nanoparticles within materials science, remedation and conservation of cultural heritage fields.
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Affiliation(s)
- Giuseppe Cavallaro
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Giuseppe Lazzara
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Stefana Milioto
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
| | - Filippo Parisi
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy
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23
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Li S, Tang F, Wang H, Feng J, Jin Z. Au–Ag and Pt–Ag bimetallic nanoparticles@halloysite nanotubes: morphological modulation, improvement of thermal stability and catalytic performance. RSC Adv 2018; 8:10237-10245. [PMID: 35540453 PMCID: PMC9078928 DOI: 10.1039/c8ra00423d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 03/01/2018] [Indexed: 11/21/2022] Open
Abstract
Bimetallic Au–Ag@HNT and Pt–Ag@HNT nanocages showed significantly improved efficiency in the oxidation of o-phenylenediamine as peroxidase-like catalyst compared with corresponding monometallic nanoparticles.
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Affiliation(s)
- Siyu Li
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
| | - Feng Tang
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
| | - Huixin Wang
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
| | - Junran Feng
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
| | - Zhaoxia Jin
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
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24
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Halloysite nanotubes with immobilized silver nanoparticles for anti-bacterial application. Colloids Surf B Biointerfaces 2017; 151:249-254. [DOI: 10.1016/j.colsurfb.2016.12.017] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 12/08/2016] [Accepted: 12/14/2016] [Indexed: 11/21/2022]
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25
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Massaro M, Schembri V, Campisciano V, Cavallaro G, Lazzara G, Milioto S, Noto R, Parisi F, Riela S. Design of PNIPAAM covalently grafted on halloysite nanotubes as a support for metal-based catalysts. RSC Adv 2016. [DOI: 10.1039/c6ra06337c] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A thermo-responsive polymer (PNIPAAM) was covalently grafted on the external surface of halloysite nanotubes and used as support for palladium nanoparticles for application as catalyst in Suzuki cross coupling in water under microwave irradiation.
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Affiliation(s)
- M. Massaro
- Dipartimento STEBICEF
- sez. Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - V. Schembri
- Dipartimento STEBICEF
- sez. Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - V. Campisciano
- Dipartimento STEBICEF
- sez. Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - G. Cavallaro
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - G. Lazzara
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - S. Milioto
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - R. Noto
- Dipartimento STEBICEF
- sez. Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - F. Parisi
- Dipartimento di Fisica e Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
| | - S. Riela
- Dipartimento STEBICEF
- sez. Chimica
- Università degli Studi di Palermo
- Palermo
- Italy
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26
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Sun Y, Chen J, Li Y, Li H, Zhu X, Hu Y, Huang S, Li J, Zhong S. Bio-inspired magnetic molecularly imprinted polymers based on Pickering emulsions for selective protein recognition. NEW J CHEM 2016. [DOI: 10.1039/c6nj01846g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrophobic halloysite nanotube stabilized Pickering emulsions and their application in protein separation.
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Affiliation(s)
- Yanhua Sun
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Jian Chen
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Yuqing Li
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Hui Li
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Xiaohong Zhu
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Yuwei Hu
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Shen Huang
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Jianbing Li
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
| | - Shian Zhong
- School of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- China
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27
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Xiong W, Sikdar D, Yap LW, Premaratne M, Li X, Cheng W. Multilayered core-satellite nanoassemblies with fine-tunable broadband plasmon resonances. NANOSCALE 2015; 7:3445-52. [PMID: 25644681 DOI: 10.1039/c4nr06756h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We report on a robust nanotemplating approach to synthesize plasmonic multilayered core-satellite (MCS) nanoassemblies. Templated with gold nanorods, ultrathin Au/Ag alloy cages and satellite gold nanoparticles can be constructed sequentially by galvanic replacement reactions and electrostatic self-assembly, respectively, forming structurally well-defined MCS. The MCS nanoassemblies exhibit strong broadband plasmon resonances from ∼440 to ∼1100 nm, and their resonant features can be fine-tuned by adjusting the size and number density of satellite nanoparticles and by adjusting the thickness of the silica spacer between cage and satellite particles. Such fine-engineered MCS nanoassemblies enable precise programming of the strength and distribution of "hot spots" to maximize the overall enhancement of surface enhanced Raman scattering.
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Affiliation(s)
- Wei Xiong
- Department of Chemical Engineering, Monash University, Clayton 3800, Victoria, Australia.
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