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Husain T, Shoaib MH, Ahmed FR, Yousuf RI, Siddiqui F, Saleem MT, Farooqi S, Jabeen S. Halloysite nanotubes-cellulose ether based biocomposite matrix, a potential sustained release system for BCS class I drug verapamil hydrochloride: Compression characterization, in-vitro release kinetics, and in-vivo mechanistic physiologically based pharmacokinetic modeling studies. Int J Biol Macromol 2023; 251:126409. [PMID: 37598820 DOI: 10.1016/j.ijbiomac.2023.126409] [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: 07/09/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
This study investigated the ability of natural nanotubular clay mineral (Halloysite) and cellulose ether based biocomposite matrix as a controlled release agent for Verapamil HCl (BCS Class-I). Drug-loaded halloysite was prepared and tablet formulations were designed by varying amount of hydroxy propyl methyl cellulose (HPMC K4M). Physical characterization was carried out using SEM, FTIR, and DSC. Tabletability profiles were evaluated using USP1062 guidelines. Drug release kinetics were studied, and physiologically based pharmacokinetic (PBPK) modeling was performed. Compressed tablets possess satisfactory yield pressure of 625 MPa with adequate hardness and disintegration within 30 min. The initial release of the drug was due to surface drug on tablets, while the prolonged release at later time points (around 80 % drug release at 12 h) were due to halloysite loading. The FTIR spectra exhibited electrostatic attraction between the positively charged drug and the negatively charged Si-O-Si functional group of halloysite, while the thermogram showed Verapamil HCl melting point at ~146 °C with enthalpy change of -126.82 J/g. PBPK modeling exhibited PK parameters of optimized matrix formulation (VER-HNT3%) comparable to in vivo data. The study effectively demonstrated the potential of prepared biocomposite matrix as a commercially viable oral release modifying agent for highly soluble drugs.
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Affiliation(s)
- Tazeen Husain
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Muhammad Harris Shoaib
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Farrukh Rafiq Ahmed
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Rabia Ismail Yousuf
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Fahad Siddiqui
- Department of Pharmaceutics & Bioavailability and Bioequivalence Research Facility, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Muhammad Talha Saleem
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Sadaf Farooqi
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Sabahat Jabeen
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi 75270, Pakistan
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Sabzini M, Pourmadadi M, Yazdian F, Khadiv-Parsi P, Rashedi H. Development of chitosan/halloysite/graphitic‑carbon nitride nanovehicle for targeted delivery of quercetin to enhance its limitation in cancer therapy: An in vitro cytotoxicity against MCF-7 cells. Int J Biol Macromol 2023; 226:159-171. [PMID: 36435458 DOI: 10.1016/j.ijbiomac.2022.11.189] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 11/12/2022] [Accepted: 11/19/2022] [Indexed: 11/24/2022]
Abstract
Although quercetin (QC) has valuable advantages, its low water solubility and poor permeability have limited its utilization as an anticancer drug. In this study, hydrogel nanocomposite of chitosan (CS), halloysite (HNT), and graphitic‑carbon nitride (g-C3N4) was prepared and loaded by QC using a water in oil in water emulsification process to attain QC sustained-release. Using g-C3N4 in the HNT/CS hydrogel solution enhanced the entrapment effectiveness (EE %) by up to 86 %. The interactions between QC and nanoparticles caused the nanocomposite pH-responsive behavior that assists in minimizing the side effect of the anticancer agent by controlling the burst release of QC at neutral conditions. According to DLS analysis, the size of the QC-loaded nanovehicle was 454.65 nm, showing that nanoparticles are highly monodispersed, which also was approved by FE-SEM. Additionally, Zeta potential value for the fabricated drug-loaded nanocarrier is +55.23 mV displaying that nanoparticles have good stability. The hydrogel nanocomposite structure's completeness was shown by FTIR pattern, and quercetin was included into the designed delivery system based on XRD data. Besides, the drug release profile indicated that a targeted sustained-release and pH-sensitive release of anticancer drug with the 96-hour extended-release were noticed. In order to comprehend the process of QC release at pH 5.4 and 7.4, four kinetic models were employed to find the best-suited model according to the acquired release data. Finally, the MTT experiment revealed considerable cytotoxicity against breast cancer cells, MCF-7 cell line was experimented in vitro, for the CS/HNT/g-C3N4 targeted delivery system in comparison to QC as a free drug. According to the above description, the CS/HNT/g-C3N4 delivery platform is a unique pH-sensitive drug delivery system for anticancer purposes that improves loading as well as sustained-release of quercetin.
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Affiliation(s)
- Mahdi Sabzini
- Department of Biotechnology Engineering, School of Chemical Engineering, University of Tehran, Tehran, Iran
| | - Mehrab Pourmadadi
- Department of Biotechnology Engineering, School of Chemical Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran.
| | - Parissa Khadiv-Parsi
- Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran.
| | - Hamid Rashedi
- Department of Biotechnology Engineering, School of Chemical Engineering, University of Tehran, Tehran, Iran
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Functionally modified halloysite nanotubes for personalized bioapplications. Adv Colloid Interface Sci 2023; 311:102812. [PMID: 36427464 DOI: 10.1016/j.cis.2022.102812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/05/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022]
Abstract
Halloysite nanotubes (HNTs) are naturally aluminosilicate clay minerals that have the benefits of large surface areas, high mechanical properties, easy functionalization, and high biocompatibility, HNTs have been developed as multifunctional nanoplatforms for various bioapplications. Although some reviews have summarized the properties and bioapplications of HNTs, it remains unclear how to functionalize the modifications of HNTs for their personalized bioapplications. In this review, based on the physicochemical properties of HNTs, we summarized the methods of functionalized modifications (surface modification and structure modification) on HNTs. Also, we highlighted their personalized bioapplications (anti-bacterial, anti-inflammatory, wound healing, cancer theranostics, bone regenerative, and biosensing) by stressing on the main roles of HNTs. Finally, we provide perspectives on the future of functionalized modifications of HNTs for docking specific biological applications.
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Wan Ikhsan SN, Yusof N, Aziz F, Ismail AF, Shamsuddin N, Jaafar J, Salleh WNW, Goh PS, Lau WJ, Misdan N. Synthesis and Optimization of Superhydrophilic-Superoleophobic Chitosan-Silica/HNT Nanocomposite Coating for Oil-Water Separation Using Response Surface Methodology. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203673. [PMID: 36296863 PMCID: PMC9607117 DOI: 10.3390/nano12203673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 06/01/2023]
Abstract
In this current study, facile, one-pot synthesis of functionalised nanocomposite coating with simultaneous hydrophilic and oleophobic properties was successfully achieved via the sol-gel technique. The synthesis of this nanocomposite coating aims to develop a highly efficient, simultaneously oleophobic-hydrophilic coating intended for polymer membranes to spontaneously separate oil-in-water emulsions, therefore, mitigating the fouling issue posed by an unmodified polymer membrane. The simultaneous hydrophilicity-oleophobicity of the nanocoating can be applied onto an existing membrane to improve their capability to spontaneously separate oil-in-water substances in the treatment of oily wastewater using little to no energy and being environmentally friendly. The synthesis of hybrid chitosan-silica (CTS-Si)/halloysite nanotube (HNT) nanocomposite coating using the sol-gel method was presented, and the resultant coating was characterised using FTIR, XPS, XRD, NMR, BET, Zeta Potential, and TGA. The wettability of the nanocomposite coating was evaluated in terms of water and oil contact angle, in which it was coated onto a polymer substrate. The coating was optimised in terms of oil and water contact angle using Response Surface Modification (RSM) with Central Composite Design (CCD) theory. The XPS results revealed the successful grafting of organosilanes groups of HNT onto the CTS-Si denoted by a wide band between 102.6-103.7 eV at Si2p. FTIR spectrum presented significant peaks at 3621 cm-1; 1013 cm-1 was attributed to chitosan, and 787 cm-1 signified the stretching of Si-O-Si on HNT. 29Si, 27Al, and 13H NMR spectroscopy confirmed the extensive modification of the particle's shells with chitosan-silica hybrid covalently linked to the halloysite nanotube domains. The morphological analysis via FESEM resulted in the surface morphology that indicates improved wettability of the nanocomposite. The resultant colloids have a high colloid stability of 19.3 mV and electrophoretic mobility of 0.1904 µmcm/Vs. The coating recorded high hydrophilicity with amplified oleophobic properties depicted by a low water contact angle (WCA) of 11° and high oil contact angle (OCA) of 171.3°. The optimisation results via RSM suggested that the optimised sol pH and nanoparticle loadings were pH 7.0 and 1.05 wt%, respectively, yielding 95% desirability for high oil contact angle and low water contact angle.
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Affiliation(s)
- Syarifah Nazirah Wan Ikhsan
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Norhaniza Yusof
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Farhana Aziz
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Norazanita Shamsuddin
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, Bandar Seri Begawan BE1410, Brunei
| | - Juhana Jaafar
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Wan Norharyati Wan Salleh
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre (AMTEC), Block N29a, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
| | - Nurasyikin Misdan
- Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, Batu Pahat 86400, Johor, Malaysia
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Preparation and Characterization of Hybrid Nanocomposites for Dental Applications. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9071381] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The study involved research related to the selection of the material with improved functional properties that can be used for dental prostheses. An innovative system of nanofillers, that differ in shape, by means of gelatin-modified halloysite nanotubes (HNTs-g) along with silane-coupled aluminum trihydrate (ATH-sil) was prepared, in order to observe a synergistic improvement of acrylic material (methyl methacrylate with methyl methacrylate monomer (MM/mMM)). Selected mechanical properties of manufactured nanocomposites, along with utilitarian properties, like hardness, buffer solution absorption, and abrasion resistance, along with a fall test from the height of finished products have been discussed. Moreover, the study of the biofilm formation on the surface of dental prostheses confirmed the occurrence of a synergistic improvement of properties and the legitimacy of using modified mineral nanofillers in the form of a hybrid system.
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Application of Heteronuclear NMR Spectroscopy to Bioinorganic and Medicinal Chemistry ☆. REFERENCE MODULE IN CHEMISTRY, MOLECULAR SCIENCES AND CHEMICAL ENGINEERING 2018. [PMCID: PMC7157447 DOI: 10.1016/b978-0-12-409547-2.10947-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liu M, Zhu D, Guo T, Zhang Y, Shi B, Shan A, Chen Z. Toxicity of zearalenone on the intestines of pregnant sows and their offspring and alleviation with modified halloysite nanotubes. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:698-706. [PMID: 28671336 DOI: 10.1002/jsfa.8517] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 06/23/2017] [Accepted: 06/25/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND The objective of this study was to examine the effects of maternal exposure to zearalenone (ZEN) on the intestines of pregnant sows and offspring on postnatal days (PD) 1, 21 and 188. Eighteen pregnant sows (six per treatment) were fed a control diet (ZEN, 0.03 mg kg-1 ), ZEN diet (ZEN, 2.77 mg kg-1 ) and ZEN + 1% modified halloysite nanotube (MHNT) diet (ZEN, 2.76 mg kg-1 ) respectively from gestation days (GD) 35 to 70. At the end of the experiment, three sows of each group on GD70 and the offspring on PD1, PD21 and PD188 were killed to analyze the changes of intestines. RESULTS The results showed that ZEN caused oxidative stress, an inflammatory response, changes in the structure of jejunum and alterations of the bacterial numbers in cecal digesta in pregnant sows and PD1 and PD21 piglets. On PD188, bacterial numbers were also altered. MHNTs supplementation reduced the amount of ZEN in the intestine and reversed to a large extent the effects induced by ZEN on the intestines of pregnant sows and offspring. CONCLUSION The results obtained from this study indicated that MHNTs treatment was beneficial for the adsorption of ZEN in the intestine of sows. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Min Liu
- Institute of Animal Nutrition, Northeast Agricultural University, Xiangfang District, Harbin, PR China
| | - Dandan Zhu
- Institute of Animal Nutrition, Northeast Agricultural University, Xiangfang District, Harbin, PR China
| | - Tao Guo
- Institute of Animal Nutrition, Northeast Agricultural University, Xiangfang District, Harbin, PR China
| | - Yuanyuan Zhang
- Institute of Animal Nutrition, Northeast Agricultural University, Xiangfang District, Harbin, PR China
| | - Baoming Shi
- Institute of Animal Nutrition, Northeast Agricultural University, Xiangfang District, Harbin, PR China
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Xiangfang District, Harbin, PR China
| | - Zhihui Chen
- Institute of Animal Nutrition, Northeast Agricultural University, Xiangfang District, Harbin, PR China
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Makaremi M, Pasbakhsh P, Cavallaro G, Lazzara G, Aw YK, Lee SM, Milioto S. Effect of Morphology and Size of Halloysite Nanotubes on Functional Pectin Bionanocomposites for Food Packaging Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17476-17488. [PMID: 28481104 DOI: 10.1021/acsami.7b04297] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Pectin bionanocomposite films filled with various concentrations of two different types of halloysite nanotubes were prepared and characterized in this study as potential films for food packaging applications. The two types of halloysite nanotubes were long and thin (patch) (200-30 000 nm length) and short and stubby (Matauri Bay) (50-3000 nm length) with different morphological, physical, and dispersibility properties. Both matrix (pectin) and reinforcer (halloysite nanotubes) used in this study are considered as biocompatible, natural, and low-cost materials. Various characterization tests including Fourier transform infrared spectroscopy, field emission scanning electron microscopy, release kinetics, contact angle, and dynamic mechanical analysis were performed to evaluate the performance of the pectin films. Exceptional thermal, tensile, and contact angle properties have been achieved for films reinforced by patch halloysite nanotubes due to the patchy and lengthy nature of these tubes, which form a bird nest structure in the pectin matrix. Matauri Bay halloysite nanotubes were dispersed uniformly and individually in the matrix in low and even high halloysite nanotube concentrations. Furthermore, salicylic acid as a biocidal agent was encapsulated in the halloysite nanotubes lumen to control its release kinetics. On this basis, halloysite nanotubes/salicylic acid hybrids were dispersed into the pectin matrix to develop functional biofilms with antimicrobial properties that can be extended over time. Results revealed that shorter nanotubes (Matauri Bay) had better ability for the encapsulation of salicylic acid into their lumen, while patchy structure and longer tubes of patch halloysite nanotubes made the encapsulation process more difficult, as they might need more time and energy to be fully loaded by salicylic acid. Moreover, antimicrobial activity of the films against four different strains of Gram-positive and Gram-negative bacteria indicated the effective antimicrobial properties of pectin/halloysite functionalized films and their potential to be used for food packaging applications.
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Affiliation(s)
- Maziyar Makaremi
- Advanced Engineering Platform, Mechanical Engineering Discipline, School of Engineering, Monash University Malaysia , Selangor 47500, Malaysia
| | - Pooria Pasbakhsh
- Advanced Engineering Platform, Mechanical Engineering Discipline, School of Engineering, Monash University Malaysia , Selangor 47500, Malaysia
| | - Giuseppe Cavallaro
- Department of Physics and Chemistry, University of Palermo , Viale delle Scienze, pad. 17, Palermo 90128, Italy
| | - Giuseppe Lazzara
- Department of Physics and Chemistry, University of Palermo , Viale delle Scienze, pad. 17, Palermo 90128, Italy
| | - Yoong Kit Aw
- School of Science, Monash University Malaysia , Selangor 47500, Malaysia
| | - Sui Mae Lee
- School of Science, Monash University Malaysia , Selangor 47500, Malaysia
| | - Stefana Milioto
- Department of Physics and Chemistry, University of Palermo , Viale delle Scienze, pad. 17, Palermo 90128, Italy
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Pan Q, Li N, Hong Y, Tang H, Zheng Z, Weng S, Zheng Y, Huang L. Halloysite clay nanotubes as effective nanocarriers for the adsorption and loading of vancomycin for sustained release. RSC Adv 2017. [DOI: 10.1039/c7ra00376e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and effective local drug delivery system with halloysite clay nanotubes as nanocarriers for vancomycin was prepared for the bacterial infection treatment.
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Affiliation(s)
- Qingqing Pan
- Department of Pharmaceutical Analysis
- Faculty of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350108
| | - Neng Li
- School of Basic Medical Sciences
- Fujian Medical University
- Fuzhou 350108
- P. R. China
| | - Yu Hong
- 476 Hospital of PLA
- Fuzhou 350002
- P. R. China
| | - Heng Tang
- Department of Pharmaceutical Analysis
- Faculty of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350108
| | | | - Shaohuang Weng
- Department of Pharmaceutical Analysis
- Faculty of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350108
| | - Yanjie Zheng
- Department of Pharmaceutical Analysis
- Faculty of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350108
| | - Liying Huang
- Department of Pharmaceutical Analysis
- Faculty of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350108
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Lvov Y, Wang W, Zhang L, Fakhrullin R. Halloysite Clay Nanotubes for Loading and Sustained Release of Functional Compounds. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1227-50. [PMID: 26438998 DOI: 10.1002/adma.201502341] [Citation(s) in RCA: 408] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 06/22/2015] [Indexed: 04/14/2023]
Abstract
Halloysite is an alumosilicate tubular clay with a diameter of 50 nm, an inner lumen of 15 nm and a length of 600-900 nm. It is a natural biocompatible nanomaterial available in thousands of tons at low price, which makes it a good candidate for nanoarchitectural composites. The inner lumen of halloysite may be adjusted by etching to 20-30% of the tube volume and loading with functional agents (antioxidants, anticorrosion agents, flame-retardant agents, drugs, or proteins) allowing for formulations with sustained release tuned by the tube end-stoppers for hours and days. Clogging the tube ends in polymeric composites allows further extension of the release time. Thus, antioxidant-loaded halloysite doped into rubber enhances anti-aging properties for at least 12 months. The addition of 3-5 wt% of halloysite increases the strength of polymeric materials, and the possibility of the tube's orientation promises a gradient of properties. Halloysite nanotubes are a promising mesoporous media for catalytic nanoparticles that may be seeded on the tube surface or synthesized exclusively in the lumens, providing enhanced catalytic properties, especially at high temperatures. In vitro and in vivo studies on biological cells and worms indicate the safety of halloysite, and tests for efficient adsorption of mycotoxins in animals' stomachs are also carried out.
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Affiliation(s)
- Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, 911 Hergot Ave, Ruston, LA, 71272, USA
- Bionanotechnology Lab, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan, Russian Federation, 420008
| | - Wencai Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 15 Chaoyang North Third Ring Rd., Beijing, 100029, China
| | - Liqun Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 15 Chaoyang North Third Ring Rd., Beijing, 100029, China
| | - Rawil Fakhrullin
- Bionanotechnology Lab, Kazan Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan, Russian Federation, 420008
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In-vitro assessment of cytotoxicity of halloysite nanotubes against HepG2, HCT116 and human peripheral blood lymphocytes. Colloids Surf B Biointerfaces 2015; 135:50-55. [DOI: 10.1016/j.colsurfb.2015.07.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 07/02/2015] [Accepted: 07/08/2015] [Indexed: 11/24/2022]
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12
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Oxidative stress inhibition and oxidant activity by fibrous clays. Colloids Surf B Biointerfaces 2015; 133:32-5. [DOI: 10.1016/j.colsurfb.2015.05.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/20/2015] [Accepted: 05/22/2015] [Indexed: 11/18/2022]
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Cervini-Silva J, Nieto-Camacho A, Ramírez-Apan MT, Gómez-Vidales V, Palacios E, Montoya A, Ronquillo de Jesús E. Anti-inflammatory, anti-bacterial, and cytotoxic activity of fibrous clays. Colloids Surf B Biointerfaces 2015; 129:1-6. [DOI: 10.1016/j.colsurfb.2015.03.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 10/23/2022]
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Cervini-Silva J, Gomez-Vidales V, Ramirez-Apan MT, Palacios E, Montoya A, Kaufhold S, Abidin Z, Theng BKG. Lipid peroxidation and cytotoxicity induced by respirable volcanic ash. JOURNAL OF HAZARDOUS MATERIALS 2014; 274:237-246. [PMID: 24793297 DOI: 10.1016/j.jhazmat.2014.04.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 04/11/2014] [Accepted: 04/12/2014] [Indexed: 06/03/2023]
Abstract
This paper reports that the main component of respirable volcanic ash, allophane, induces lipid peroxidation (LP), the oxidative degradation of lipids in cell membranes, and cytotoxicity in murin monocyle/macrophage cells. Naturally-occurring allophane collected from New Zealand, Japan, and Ecuador was studied. The quantification of LP was conducted using the Thiobarbituric Acid Reactive Substances (TBARS) assay. The cytotoxic effect was determined by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide colorimetric assay. Electron-Paramagnetic Resonance (EPR) determinations of naturally-occurring allophane confirmed the incorporation in the structure and clustering of structural Fe(3+), and nucleation and growth of small-sized Fe (oxyhydr)oxide or gibbsite. LP induced by allophane varied with time, and solid concentration and composition, reaching 6.7 ± 0.2 nmol TBARS mg prot(-1). LP was surface controlled but not restricted by structural or surface-bound Fe(3+), because redox processes induced by soluble components other than perferryl iron. The reactivity of Fe(3+) soluble species stemming from surface-bound Fe(3+) or small-sized Fe(3+) refractory minerals in allophane surpassed that of structural Fe(3+) located in tetrahedral or octahedral sites of phyllosilicates or bulk iron oxides. Desferrioxamine B mesylate salt (DFOB) or ethylenediaminetetraacetic acid (EDTA) inhibited LP. EDTA acted as a more effective inhibitor, explained by multiple electron transfer pathways. Registered cell-viability values were as low as 68.5 ± 6.7%.
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Affiliation(s)
- Javiera Cervini-Silva
- Departamento de Procesos y Tecnología, Universidad Autónoma Metropolitana Unidad Cuajimalpa, México City, Mexico; Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - Virginia Gomez-Vidales
- Laboratorio de Resonancia Paramagnética Electrónica, Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, México City, Mexico
| | - María Teresa Ramirez-Apan
- Laboratorio de Pruebas Biológicas, Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, México City, Mexico
| | - Eduardo Palacios
- Dirección de Investigación y Posgrado, Instituto Mexicano del Petróleo, Mexico
| | - Ascención Montoya
- Dirección de Investigación y Posgrado, Instituto Mexicano del Petróleo, Mexico
| | - Stephan Kaufhold
- BGR Bundesansaltfür Geowissenschaften und Rohstoffe, Stilleweg 2, D-30655 Hannover, Germany
| | - Zeanal Abidin
- Applied Chemistry for Environmental Industry Laboratory, Faculty of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan; Department of Chemistry, Faculty of Science and Mathematics, Bogor Agriculture University, Kampus Darmaga, JL Meranti, Bogor West of Java, Indonesia
| | - Benny K G Theng
- Landcare Research, Private Bag 11052, Palmerston North 4442, New Zealand
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