1
|
Lo Bianco A, Calvino MM, Cavallaro G, Lisuzzo L, Pasbakhsh P, Milioto S, Lazzara G, Lvov Y. Flame-Resistant Inorganic Films by Self-Assembly of Clay Nanotubes and their Conversion to Geopolymer for CO 2 Capture. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2406812. [PMID: 39375983 DOI: 10.1002/smll.202406812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2024] [Indexed: 10/09/2024]
Abstract
Self-assembling of very long natural clay nanotubes represents a powerful strategy to fabricate thermo-stable inorganic thin films suitable for environmental applications. In this work, self-standing films with variable thicknesses (from 60 to 300 µm) are prepared by the entanglement of 20-30 µm length Patch halloysite clay nanotubes (PT_Hal), which interconnect into fibrosus structures. The thickness of the films is crucial to confer specific properties like transparency, mechanical resistance, and water uptake. Despite its completely inorganic composition, the thickest nanoclay film possesses elasticity comparable with polymeric materials as evidenced by its Young's modulus (ca. 1710 MPa). All PT_Hal-based films are fire resistant and stable under high temperature conditions preventing flame propagation. After their direct flame exposure, produced films do not show neither deterioration effects nor macroscopic alterations. PT_Hal films are employed as precursors for the development of functional materials by alkaline activation and thermal treatment, which generate highly porous geopolymers or ceramics with a compact morphology. Due to its high porosity, geopolymer can be promising for CO2 capture. As compared to the corresponding inorganic film, the CO2 adsorption efficiency is doubled for the halloysite geopolymeric materials highlighting their potential use as a sorbent.
Collapse
Affiliation(s)
- Alessandro Lo Bianco
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze 17, Palermo, 90128, Italy
| | - Martina Maria Calvino
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze 17, Palermo, 90128, Italy
| | - Giuseppe Cavallaro
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze 17, Palermo, 90128, Italy
| | - Lorenzo Lisuzzo
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze 17, Palermo, 90128, Italy
| | - Pooria Pasbakhsh
- Department of Infrastructure Engineering, Faculty of Engineering and Information Technology, The University of Melbourne, Melbourne, Victoria, 3010, Australia
- Department of Mechanical Engineering, School of Engineering, Monash University Sunway Campus, Bandar Sunway, Subang Jaya, Selangor, 47500, Malaysia
| | - Stefana Milioto
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze 17, Palermo, 90128, Italy
| | - Giuseppe Lazzara
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze 17, Palermo, 90128, Italy
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, 505 Tech Drive, Ruston, LA, 71272, USA
| |
Collapse
|
2
|
Wu H, Qin J, Hua X, Wang Z, Zhang Z, Zhang J. Self-assembly behavior and adhesive performance of imidazolium cation grafted cellulose nanocrystals in confined space. Carbohydr Polym 2024; 336:122127. [PMID: 38670758 DOI: 10.1016/j.carbpol.2024.122127] [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: 10/08/2023] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024]
Abstract
Confined evaporation-induced self-assembly (C-EISA) is a powerful technique to guide disordered nanoparticles into long-range organized structures. Herein, we investigate the C-EISA behavior of 1-butyl-3-vinylimidazolium cation ([VBIm]+) grafted cellulose nanocrystals (CNC-C) in a parallel-plates confined geometry. Interestingly, CNC-C can spontaneously assemble into maze-like patterns with branch dimensions on the micrometer scale and uniformly distributed throughout the confined space, which is completely different from the lamellar self-assembly patterns of unmodified CNCs. Combining in situ observations and microscopic characterization, we speculate that the formation of maze-like patterns originates from the reduction of colloidal stability induced by the grafted imidazolium cations. The electrostatic attraction between CNC-C aggregated bundles and glass substrates acts as anchor points, thereby leading to the unstable motion of the liquid-air menisci during the inward intrusion of air. Due to the physicochemical properties and unique C-EISA behavior, the CNC-C based adhesive can maintain adhesion at temperatures of ca. 200 °C, while rapidly debonding when immersed in water, demonstrating the potential to be used as stimuli-responsive temporary or removable adhesives. Furthermore, the strategy proposed in this work for achieving CNCs patterning is also promising to be extended to other anisotropic rod-shaped nanoparticles.
Collapse
Affiliation(s)
- Hao Wu
- Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Jinli Qin
- Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Xiangdong Hua
- Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Zhaolu Wang
- Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Zejun Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Jianming Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao 266042, China.
| |
Collapse
|
3
|
Liu M, Fakhrullin R, Stavitskaya A, Vinokurov V, Lama N, Lvov Y. Micropatterning of biologically derived surfaces with functional clay nanotubes. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2024; 25:2327276. [PMID: 38532983 PMCID: PMC10964834 DOI: 10.1080/14686996.2024.2327276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 03/03/2024] [Indexed: 03/28/2024]
Abstract
Micropatterning of biological surfaces performed via assembly of nano-blocks is an efficient design method for functional materials with complex organic-inorganic architecture. Halloysite clay nanotubes with high aspect ratios and empty lumens have attracted widespread interest for aligned biocompatible composite production. Here, we give our vision of advances in interfacial self-assembly techniques for these natural nanotubes. Highly ordered micropatterns of halloysite, such as coffee rings, regular strips, and concentric circles, can be obtained through high-temperature evaporation-induced self-assembly in a confined space and shear-force brush-induced orientation. Assembly of these clay nanotubes on biological surfaces, including the coating of human or animal hair, wool, and cotton, was generalized with the indication of common features. Halloysite-coated microfibers promise new approaches in cotton and hair dyeing, medical hemostasis, and flame-retardant tissue applications. An interfacial halloysite assembly on oil microdroplets (Pickering emulsion) and its core-shell structure (functionalization with quantum dots) was described in comparison with microfiber nanoclay coatings. In addition to being abundantly available in nature, halloysite is also biosafe, which makes its spontaneous surface micropatterning prospective for high-performance materials, and it is a promising technique with potential for an industrial scale-up.
Collapse
Affiliation(s)
- Mingxian Liu
- Department of Materials Science and Engineering, Jinan University, Guangzhou, P. R. China
| | - Rawil Fakhrullin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Anna Stavitskaya
- Department of Physical and Colloid Chemistry, Gubkin Russian State University of Oil and Gas, Moscow, Russian Federation
| | - Vladimir Vinokurov
- Department of Physical and Colloid Chemistry, Gubkin Russian State University of Oil and Gas, Moscow, Russian Federation
| | - Nisha Lama
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, USA
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, USA
| |
Collapse
|
4
|
Xu Y, He Y, Wu F, Zhou X, Liu M. Formation and Application of Polymer Spherulite-like Patterns of Halloysite Nanotubes by Evaporation-Induced Self-Assembly. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38471076 DOI: 10.1021/acsami.3c18917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Halloysite nanotubes (HNTs) are one-dimensional clay nanomaterials featuring distinct tubular structures and unique surface charges. HNTs can readily form ordered assembly structures under specific conditions, which shows significant potential applications in optical and biological fields. In this study, sodium hexametaphosphate (SHMP) was employed as a stabilizer to prepare polymer spherulite-like patterns via the evaporation-induced self-assembly (EISA) technique. The incorporation of SHMP enhanced the repulsion force among the nanotubes and the surface potential, which facilitated the orderly deposition of HNTs. The influence of HNT concentration, SHMP concentration, drying temperature, and substrate on the polymer spherulites-like pattern has been investigated in detail. The optimal conditions were 10 wt % HNT dispersion, 0.6 wt % SHMP concentration, 30 °C as drying temperature, and glass substrates. In addition, by changing the droplet volume and shape of the three-phase contact line, patterns of different sizes and shapes can be achieved. Bovine serum albumin or metal salt compounds were incorporated into the dispersion of SHMP-modified HNTs, which altered the charge and the self-assembled patterns with different area ratios. Thus, this technology can be utilized for the analysis and comparison of protein and metal ion concentration accurately. This study creates the correlation between the structural parameters and the preparation process involved in creating polymer spherulite-like patterns of modified HNTs and offers fresh insights into potential applications for the self-assembly of HNT droplets in the realms of anticounterfeiting and solution concentration analysis.
Collapse
Affiliation(s)
- Yuqian Xu
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China
| | - Yunqing He
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China
| | - Feng Wu
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China
| | - Xinyuan Zhou
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China
| | - Mingxian Liu
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 511443, PR of China
| |
Collapse
|
5
|
Dadwal A, Prasher M, Sengupta P, Kumar N. Quantifying nematic order in the evaporation-driven self-assembly of halloysite nanotubes: nematic islands and the critical aspect ratio. SOFT MATTER 2023; 19:9050-9058. [PMID: 37975238 DOI: 10.1039/d3sm01224g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Halloysite nanotubes (HNTs) are naturally occurring clay minerals found in the Earth's crust that typically exist in the form of high aspect-ratio nanometer-long rods. Here, we investigate the evaporation-driven self-assembly process of HNTs and show that a highly polydisperse collection of HNTs self-sort into a spatially inhomogeneous structure, displaying a systematic variation in the resulting nematic order. Through detailed quantification using the nematic order parameter S and nematic correlation functions, we show the existence of well-defined isotropic-nematic transitions in the emerging structures. We also show that the onset of these transitions gives rise to the formation of nematic islands, a phase resembling ordered nematic domains surrounded by an isotropic phase, which grow in size with S. Detailed image analysis indicates a strong correlation between local S and the local aspect ratio, L/D, with nematic order possible only for rods with L/D ≥ 6.5 ± 1. Finally, we conclude that the observed phenomena directly result from aspect ratio-based sorting in our system. Altogether, our results provide a unique method of tuning the local microscopic structure in self-assembled HNTs using L/D as an external parameter.
Collapse
Affiliation(s)
- Arun Dadwal
- Department of Physics, Indian Institute of Technology Bombay Powai, Mumbai 400076, India.
| | - Meenu Prasher
- Materials Science Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - Pranesh Sengupta
- Materials Science Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Nitin Kumar
- Department of Physics, Indian Institute of Technology Bombay Powai, Mumbai 400076, India.
| |
Collapse
|
6
|
Preparation of oriented attapulgite nanofibers using evaporation induced self-assembly. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
7
|
Cherednichenko YV, Konnova SA, Fakhrullin RF. Self-Assembly of Halloysite Nanotubes as a Tool for the Formation of 3D Structures. COLLOID JOURNAL 2022. [DOI: 10.1134/s1061933x22030024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
8
|
Lu X, Liu L, Liu H, Tian G, Peng G, Zhuo L, Wang Z. Zeolite-X synthesized from halloysite nanotubes and its application in CO2 capture. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
9
|
Glukhova SA, Molchanov VS, Chesnokov YM, Lokshin BV, Kharitonova EP, Philippova OE. Green nanocomposite gels based on binary network of sodium alginate and percolating halloysite clay nanotubes for 3D printing. Carbohydr Polym 2022; 282:119106. [DOI: 10.1016/j.carbpol.2022.119106] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/27/2021] [Accepted: 01/04/2022] [Indexed: 12/16/2022]
|
10
|
Liu H, Wang Y, Luo Y, Guo M, Feng Y, Liu M. Tunable coffee-ring formation of halloysite nanotubes by evaporating sessile drops. SOFT MATTER 2021; 17:9514-9527. [PMID: 34617549 DOI: 10.1039/d1sm01150b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Halloysite nanotubes (HNTs) are one-dimensional clay nanomaterials with a length of 200-1000 nm and a diameter of ∼50 nm. Understanding the self-assembly behavior of such unique nanoparticles is important to develop their applications in functional devices. In this study, the "coffee-ring" patterns of HNTs are investigated which are formed by evaporation of the sessile droplets of HNT aqueous dispersion on different substrates. The coffee-ring pattern with various dimensions was characterized using a polarizing microscope (POM), a scanning electron microscope (SEM), and a 3D optical profilometer. The diameter, height, and area of the coffee-ring patterns depend on the concentration of HNT dispersion, the droplet volume, and surface wettability. POM and SEM results suggested that the nanotubes were highly ordered in the edge and the middle of the coffee-ring. The coffee-ring effect of HNTs could be suppressed by increasing the evaporation temperature of substrates or adding polymer additives. In addition, multiple-ring patterns consistent with protein rings surrounding HNT rings were formed, which can be utilized to detect the presence of proteins in biological samples. This work illustrated the relationship between the formation of coffee-ring patterns and the experimental conditions, which provided an additional research chance and allowed application development for HNTs using the liquid droplet self-assembly.
Collapse
Affiliation(s)
- Hongzhong Liu
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Yao Wang
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Yumin Luo
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Min Guo
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Yue Feng
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Mingxian Liu
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
11
|
Lisuzzo L, Hueckel T, Cavallaro G, Sacanna S, Lazzara G. Pickering Emulsions Based on Wax and Halloysite Nanotubes: An Ecofriendly Protocol for the Treatment of Archeological Woods. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1651-1661. [PMID: 33379868 PMCID: PMC8021222 DOI: 10.1021/acsami.0c20443] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
A novel green protocol for the consolidation and protection of waterlogged archeological woods with wax microparticles has been designed. First, we focused on the development of halloysite nanotubes (HNTs) based Pickering emulsions using wax as the inner phase of the oil-in-water droplets. The optimization of the preparation strategy was supported by both optical microscopy and scanning electron microscopy, which allowed us to show the morphological features of the prepared hybrid systems and their structural properties, i.e., the distribution of the clay at the interface. Also, the dependence of the overall dimensions of the prepared systems on the halloysite content was demonstrated. Microdifferential scanning calorimetry (μ-DSC) was conducted in order to assess whether the thermal properties of the wax are affected after its interaction with HNTs. Then, the Pickering emulsions were employed for the treatment of waterlogged wooden samples. Compared to the archeological woods treated with pure wax, the addition of nanotubes induced a remarkable improvement in the mechanical performance in terms of stiffness and flexural strength. The proposed protocol is environmentally friendly since water is the only solvent used throughout the entire procedure, even if wax is vehiculated into the pores at room temperature. As a consequence, the design of wax/halloysite Pickering emulsions represents a promising strategy for the preservation of wooden artworks, and it has a great potential to be scaled up, thus becoming also exploitable for the treatments of shipwrecks of large size.
Collapse
Affiliation(s)
- Lorenzo Lisuzzo
- Molecular
Design Institute, Department of Chemistry, New York University, 29 Washington Place, New York, New York 10003, United
States
- Department
of Physics and Chemistry, University of
Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
| | - Theodore Hueckel
- Molecular
Design Institute, Department of Chemistry, New York University, 29 Washington Place, New York, New York 10003, United
States
| | - Giuseppe Cavallaro
- Department
of Physics and Chemistry, University of
Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
| | - Stefano Sacanna
- Molecular
Design Institute, Department of Chemistry, New York University, 29 Washington Place, New York, New York 10003, United
States
| | - Giuseppe Lazzara
- Department
of Physics and Chemistry, University of
Palermo, Viale delle Scienze, pad. 17, Palermo 90128, Italy
| |
Collapse
|
12
|
Talantikite M, Leray N, Durand S, Moreau C, Cathala B. Influence of arabinoxylan on the drying of cellulose nanocrystals suspension: From coffee ring to Maltese cross pattern and application to enzymatic detection. J Colloid Interface Sci 2020; 587:727-735. [PMID: 33234309 DOI: 10.1016/j.jcis.2020.11.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/05/2020] [Accepted: 11/08/2020] [Indexed: 12/26/2022]
Abstract
Evaporation of sessile droplet containing suspension of cellulose nanocrystals (CNC) results on birefringent coffee ring pattern (CR), due to the concentration increase and self-assembly of CNC carried by the flow at the edge of evaporating droplet. In this work, we studied the apparition of Maltese cross pattern, (MC) after addition of an hydrosoluble biopolymer belonging to the hemicellulose family, i.e. arabinoxylan (AX). To investigate the mechanisms that control MC pattern apparition, distribution of the two components inside the dried droplet was investigated using FTIR. CNC and AX were found to be homogenously deposited and CNC self-assembly induces nanoparticles orientation in the CR deposit. We demonstrate that the increase of concentration during drying induces gelation of CNC/AX mixture leading to MC pattern apparition. We take advantage of the apparition of MC pattern to develop a novel catalytic activity detection assay based on the variation of viscosity. Indeed, addition of Endo-1,4-β-Xylanase (Xyl) addition to a suspension containing CNC/AX complex leads to hydrolysis of AX that decrease in droplet viscosity leading to MC disappearance. The enzymatic detection assay is thus simple, easy to handle, fast, sensitive and do not require complex analytical devices.
Collapse
|
13
|
Facile Fabrication of Natural Polyelectrolyte-Nanoclay Composites: Halloysite Nanotubes, Nucleotides and DNA Study. Molecules 2020; 25:molecules25153557. [PMID: 32759785 PMCID: PMC7436255 DOI: 10.3390/molecules25153557] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/16/2020] [Accepted: 07/31/2020] [Indexed: 12/22/2022] Open
Abstract
Complexation of biopolymers with halloysite nanotubes (HNTs) can greatly affect their applicability as materials building blocks. Here we have performed a systematic investigation of fabrication of halloysite nanotubes complexes with nucleotides and genomic DNA. The binding of DNA and various nucleotide species (polyAU, UMP Na2, ADP Na3, dATP Na, AMP, uridine, ATP Mg) by halloysite nanotubes was tested using UV-spectroscopy. The study revealed that binding of different nucleotides to the nanoclay varied but was low both in the presence and absence of MgCl2, while MgCl2 facilitated significantly the binding of longer molecules such as DNA and polyAU. Modification of the nanotubes with DNA and nucleotide species was further confirmed by measurements of ζ-potentials. DNA-Mg-modified nanotubes were characterized using transmission electron (TEM), atomic force (AFM) and hyperspectral microscopies. Thermogravimetric analysis corroborated the sorption of DNA by the nanotubes, and the presence of DNA on the nanotube surface was indicated by changes in the surface adhesion force measured by AFM. DNA bound by halloysite in the presence of MgCl2 could be partially released after addition of phosphate buffered saline. DNA binding and release from halloysite nanotubes was tested in the range of MgCl2 concentrations (10–100 mM). Even low MgCl2 concentrations significantly increased DNA sorption to halloysite, and the binding was leveled off at about 60 mM. DNA-Mg-modified halloysite nanotubes were used for obtaining a regular pattern on a glass surface by evaporation induced self-assembly process. The obtained spiral-like pattern was highly stable and resisted dissolution after water addition. Our results encompassing modification of non-toxic clay nanotubes with a natural polyanion DNA will find applications for construction of gene delivery vehicles and for halloysite self-assembly on various surfaces (such as skin or hair).
Collapse
|
14
|
Cavallaro G, Chiappisi L, Gradzielski M, Lazzara G. Effect of the supramolecular interactions on the nanostructure of halloysite/biopolymer hybrids: a comprehensive study by SANS, fluorescence correlation spectroscopy and electric birefringence. Phys Chem Chem Phys 2020; 22:8193-8202. [PMID: 32249883 DOI: 10.1039/d0cp01076f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The structural properties of halloysite/biopolymer aqueous mixtures were firstly investigated by means of combining different techniques, including small-angle neutron scattering (SANS), electric birefringence (EBR) and fluorescence correlation spectroscopy (FCS). Among the biopolymers, non-ionic hydroxypropylcellulose and polyelectrolytes (anionic alginate and cationic chitosan) were selected. On this basis, the specific supramolecular interactions were correlated to the structural behavior of the halloysite/biopolymer mixtures. SANS data were analyzed in order to investigate the influence of the biopolymer adsorption on the halloysite gyration radius. In addition, a morphological description of the biopolymer-coated halloysite nanotubes (HNTs) was obtained by the simulation of SANS curves. EBR experiments evidenced that the orientation dynamics of the nanotubes in the electric field is influenced by the specific interactions with the polymers. Namely, both variations of the polymer charge and/or wrapping mechanisms strongly affected the HNT alignment process and, consequently, the rotational mobility of the nanotubes. FCS measurements with fluorescently labeled biopolymers allowed us to study the aqueous dynamic behavior of ionic biopolymers after their adsorption onto the HNT surfaces. The combination of EBR and FCS results revealed that the adsorption process reduces the mobility in water of both components. These effects are strongly enhanced by HNT/polyelectrolyte electrostatic interactions and wrapping processes occurring in the halloysite/chitosan mixture. The attained findings can be useful for designing halloysite/polymer hybrids with controlled structural properties.
Collapse
Affiliation(s)
- Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze pad 17, 90128 Palermo, Italy. and Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, I-50121 Firenze, Italy and Stranski Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Sekr. TC 7, 10623 Berlin, Germany
| | - Leonardo Chiappisi
- Stranski Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Sekr. TC 7, 10623 Berlin, Germany and LSS Group, Institut Laue-Langevin, 6 rue Jules Horowitz BP 156, F-38042 Grenoble, Cedex 9, France
| | - Michael Gradzielski
- Stranski Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Sekr. TC 7, 10623 Berlin, Germany
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze pad 17, 90128 Palermo, Italy. and Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, I-50121 Firenze, Italy
| |
Collapse
|
15
|
Periodic Fractal-Growth Branching to Nano-Structured Grating Aggregation in Phthalic Acid. Sci Rep 2020; 10:4062. [PMID: 32132593 PMCID: PMC7055272 DOI: 10.1038/s41598-020-60782-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/03/2020] [Indexed: 11/08/2022] Open
Abstract
Small-molecule phthalic acid (PA), confined in micrometer thin films, was crystallized in the presence of strongly interacting tannic acid (TA) to investigate crystal assembly and correlation between banded patterns and branching structures. Several compositions of the mixture of ethanol/water solutions and evaporation temperatures were also manipulated to investigate the kinetic effects on the morphology of PA crystals. With increasing evaporation rate, the morphology of PA crystals systematically changes from circular-banded spherulites to highly ordered grating-banded patterns. A unique periodic fractal-branch pattern with contrasted birefringent bands exists at intermediate evaporation rate, and this unique grating architecture has never been found in other banded crystals. Crystal assembly of these three periodic morphologies was analyzed by utilizing atomic-force microscopy (AFM) and scanning electron microscopy (SEM) to reveal the mechanisms of formation of hierarchical structures of PA. The detailed growth mechanisms of the novel fractal-branching assembly into circular- or grating-banded patterns are analyzed in this work.
Collapse
|
16
|
Facile production of HNTs\PDA\PF nanocomposites by unique and environment-friendly method for the removal of phenolic pollutants in water as an environmental adsorbent. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
17
|
Zhao X, Zhou C, Liu M. Self-assembled structures of halloysite nanotubes: towards the development of high-performance biomedical materials. J Mater Chem B 2019; 8:838-851. [PMID: 31830201 DOI: 10.1039/c9tb02460c] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Halloysite nanotubes (HNTs), 1D natural tubular nanoparticles, exhibit a high aspect ratio, empty lumen, high adsorption ability, good biocompatibility, and high biosafety, which have attracted researchers' attention in applications of the biomedical area. HNTs can be readily dispersed in water due to their negatively charged surface and good hydrophilicity. The unique rod-like structure and surface properties give HNTs assembly ability into ordered hierarchical structures. In this review, the self-assembly approaches of HNTs including evaporation induced self-assembly by a "coffee-ring" mechanism, shear force induced self-assembly, and electric field force induced self-assembly were introduced. In addition, HNT self-assembly on polymeric substrates and biological substrates including hair, cells, and zebrafish embryos was discussed. These assembly processes are related to noncovalent interactions such as electrostatic, hydrogen bonding, and van der Waals forces or electron-transfer reactions. Moreover, the applications of self-assembled HNT patterns in biomedical areas such as capture of circulating tumor cells, guiding oriented cell growth, controlling cell germination, and delivery of drugs or nutrients were discussed and highlighted. Finally, challenges and future directions of assembly of HNTs were introduced. This review will inspire researchers in the design and fabrication of functional biodevices based on HNTs for tissue engineering, cancer diagnosis/therapy, and personal healthcare products.
Collapse
Affiliation(s)
- Xiujuan Zhao
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Changren Zhou
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| | - Mingxian Liu
- Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
18
|
Mondal R, Basavaraj MG. Influence of the drying configuration on the patterning of ellipsoids - concentric rings and concentric cracks. Phys Chem Chem Phys 2019; 21:20045-20054. [PMID: 31478535 DOI: 10.1039/c9cp03008e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Evaporation of colloidal dispersions leading to patterning of particles is a simple and elegant route for controlling the self-assembly of particles on a solid surface. In this article, we demonstrate that the configuration in which a colloidal dispersion is dried greatly influences the patterning of particles on a solid surface after complete evaporation of the solvent. Evaporation experiments are carried out using well-characterized stable aqueous dispersions of hematite ellipsoids and polystyrene spheres. The drying of particle laden sessile drops always give a "coffee-ring" deposit irrespective of the particle concentration. At a particle concentration ≥0.3 wt% circular cracks appear in the annular region of the coffee-ring deposit owing to the ordered arrangement of ellipsoids. In stark contrast, the deposits formed by drying the dispersion of ellipsoids in the sphere-on-plate configuration show a transition from "concentric rings" to "concentric cracks" in the micro-structure of the particulate film with an increase in the concentration of particles. Further, our experimental findings reveal that long-range circular cracks and long-range assemblies of particles can be achieved by drying of the dispersion in the sphere-on-plate configuration. While the nature of patterns - that is - coffee-rings and concentric rings - is independent of the shape of the particles, a strikingly different crack morphology is shown to be dictated by the shape of the particles in the dispersion. The results presented show that the drying of colloidal dispersions in the sphere-on-plate configuration enables the fabrication of a long range ordered assembly of particles over an area as large as few square millimeters.
Collapse
Affiliation(s)
- Ranajit Mondal
- Polymer Engineering and Colloid Science Laboratory (PECS Lab), Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai-600036, India.
| | | |
Collapse
|
19
|
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: 51] [Impact Index Per Article: 8.5] [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.
Collapse
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
| |
Collapse
|
20
|
Liu W, Zhu L, Ma Y, Ai L, Wen W, Zhou C, Luo B. Well-ordered chitin whiskers layer with high stability on the surface of poly(d,l-lactide) film for enhancing mechanical and osteogenic properties. Carbohydr Polym 2019; 212:277-288. [DOI: 10.1016/j.carbpol.2019.02.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 10/27/2022]
|
21
|
Zhao X, Zhou C, Lvov Y, Liu M. Clay Nanotubes Aligned with Shear Forces for Mesenchymal Stem Cell Patterning. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900357. [PMID: 30957957 DOI: 10.1002/smll.201900357] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/15/2019] [Indexed: 06/09/2023]
Abstract
Aligned halloysite nanotubes on solid substrates are fabricated by a shearing method with brush assistance. These clay nanotubes are aligned by shear force in strip-like patterns accomplished with drying ordering at elevated temperatures. The nanotubes' orientation is governed by "coffee-ring" formation mechanisms depending on the dispersion concentration, nanotube charge, and speed of thermos-evaporation. Polarized light irradiated through the patterns demonstrates birefringence and confirms the orientation. Scanning electron microscopy and atomic force microscopy show that the nanotubes are aligned along the direction of the wetting lines above 4 wt%, while they are not oriented at lower concentrations. Halloysite concentration, drying temperature, and type of brush fibers affect the pattern ordering. The aligned halloysite systems on glass, tissue culture plates, and polymer films, provide a promising platform for biocell guiding. Human foreskin fibroblasts proliferated well on the aligned clay patterns and the cell orientation agrees with the nanotube direction. Human bone mesenchymal stem cells (HBMSCs) are also cultured on the organized halloysite coating. The clay patterns support HBMSC proliferation with alignment, and such nanostructured substrates promote osteogenesis differentiation without growth factors. This facile method for preparing aligned halloysite patterns on solid substrates is very promising for surface modification in biotissue engineering.
Collapse
Affiliation(s)
- Xiujuan Zhao
- Department of Materials Science and Engineering, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
| | - Changren Zhou
- Department of Materials Science and Engineering, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, 71272, USA
- Department of Theoretical Physics and Quantum Technologies, National University of Science and Technology "MISiS", Moscow, 119049, Russia
| | - Mingxian Liu
- Department of Materials Science and Engineering, Jinan University, Guangzhou, Guangdong, 510632, P. R. China
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, 71272, USA
| |
Collapse
|
22
|
Lisuzzo L, Cavallaro G, Pasbakhsh P, Milioto S, Lazzara G. Why does vacuum drive to the loading of halloysite nanotubes? The key role of water confinement. J Colloid Interface Sci 2019; 547:361-369. [PMID: 30974251 DOI: 10.1016/j.jcis.2019.04.012] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/28/2019] [Accepted: 04/03/2019] [Indexed: 12/11/2022]
Abstract
The filling of halloysite nanotubes with active compounds solubilized in aqueous solvent was investigated theoretically and experimentally. Based on Knudsen thermogravimetric data, we demonstrated the water confinement within the cavity of halloysite. This process is crucial to properly describe the driving mechanism of halloysite loading. In addition, Knudsen thermogravimetric experiments were conducted on kaolinite nanoplates as well as on halloysite nanotubes modified with an anionic surfactant (sodium dodecanoate) in order to explore the influence of both the nanoparticle morphology and the hydrophobic/hydrophilic character of the lumen on the confinement phenomenon. The analysis of the desorption isotherms allowed us to determine the water adsorption properties of the investigated nanoclays. The pore sizes of the nanotubes' lumen was determined by combining the vapor pressure of the confined water with the nanoparticles wettability, which was studied through contact angle measurements. The thermodynamic description of the water confinement inside the lumen was correlated to the influence of the vacuum pumping in the experimental loading of halloysite. Metoprolol tartrate, salicylic acid and malonic acid were selected as anionic guest molecules for the experimental filling of the positively charged halloysite lumen. According to the filling mechanism induced by the water confinement, the vacuum operation and the reduced pressure enhanced the loading of halloysite nanotubes for all the investigated bioactive compounds. This work represents a further and crucial step for the development of halloysite based nanocarriers being that the filling mechanism of the nanotube's cavity from aqueous dispersions was described according to the water confinement process.
Collapse
Affiliation(s)
- Lorenzo Lisuzzo
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy
| | - Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, I-50121 Firenze, Italy
| | - Pooria Pasbakhsh
- Mechanical Engineering Discipline, School of Engineering, Monash University Malaysia, 47500 Selangor, Malaysia
| | - Stefana Milioto
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, I-50121 Firenze, Italy
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, INSTM, Via G. Giusti, 9, I-50121 Firenze, Italy
| |
Collapse
|
23
|
Zheng J, Ou X, Wu F, Liu M. Synthesis of supramolecular gels based on electron-transfer reactions between clay nanotubes and styrene. Chem Commun (Camb) 2019; 55:10756-10759. [DOI: 10.1039/c9cc04102h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel supramolecular gel is synthesized using styrene and halloysite nanotubes under ultrasound treatment, in which the nanotubes act as gelators for the styrene gel.
Collapse
Affiliation(s)
- Jingqi Zheng
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou
- P. R. China
| | - Xianfeng Ou
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou
- P. R. China
| | - Fan Wu
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou
- P. R. China
| | - Mingxian Liu
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou
- P. R. China
| |
Collapse
|
24
|
Liu M, Fakhrullin R, Novikov A, Panchal A, Lvov Y. Tubule Nanoclay-Organic Heterostructures for Biomedical Applications. Macromol Biosci 2018; 19:e1800419. [PMID: 30565394 DOI: 10.1002/mabi.201800419] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/03/2018] [Indexed: 12/26/2022]
Abstract
Natural halloysite nanotubes (HNTs) show unique hollow structure, high aspect ratio and adsorption ability, good biocompatibility, and low toxicity, which allow for various biomedical applications in the diagnosis and treatment of diseases. Here, advances in self-assembly of halloysite for cell capturing and bacterial proliferation, coating on biological surfaces and related drug delivery, bone regeneration, bioscaffolds, and cell labeling are summarized. The in vivo toxicity of these clay nanotubes is discussed. Halloysite allows for 10-20% drug loading and can extend the delivery time to 10-100 h. These drug-loaded nanotubes are doped into the polymer scaffolds to release the loaded drugs. The rough surfaces fabricated by self-assembly of the clay nanotubes enhance the interactions with tumor cells, and the cell capture efficacy is significantly improved. Since halloysite has no toxicity toward microorganisms, the bacteria composed within these nanotubes can be explored in oil/water emulsion for petroleum spilling bioremediation. Coating of living cells with halloysite can control the cell growth and is not harmful to their viability. Quantum dots immobilized on halloysite were employed for cell labeling and imaging. The concluding academic results combined with the abundant availability of these natural nanotubes promise halloysite applications in personal healthcare and environmental remediation.
Collapse
Affiliation(s)
- Mingxian Liu
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, 71270, USA.,Department of Materials Science and Engineering, Jinan University, Guangzhou, 510632, P. R. China
| | - Rawil Fakhrullin
- Bionanotechnology Lab, Kazan Federal University, Kazan, 420008, Republic of Tatarstan, Russian Federation
| | - Andrei Novikov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin Russian State University of Oil and Gas, Moscow, 119991, Russia
| | - Abhishek Panchal
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, 71270, USA
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, 71270, USA.,Functional Aluminosilicate Nanomaterials Lab, Gubkin Russian State University of Oil and Gas, Moscow, 119991, Russia
| |
Collapse
|
25
|
Panchal A, Fakhrullina G, Fakhrullin R, Lvov Y. Self-assembly of clay nanotubes on hair surface for medical and cosmetic formulations. NANOSCALE 2018; 10:18205-18216. [PMID: 30211430 DOI: 10.1039/c8nr05949g] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
While most hair care formulations are developed on the basis of surfactants or polymers, we introduce self-assembly coating of micro and nanoparticles as the underlying principle for hair modification, protection and enhancement. Halloysite clay nanotubes formed by rolled sheets of aluminosilicate kaolin assemble on the surface of hair forming a robust multilayer coverage. Prior to the application, clay nanotubes were loaded with selected dyes or drug allowing for hair coloring or medical treatment. This facile process is based on a 3-minute application of 1 wt% aqueous dispersion of color/drug loaded halloysite resulting in a ca. 3 μm thick uniform hair surface coating. This technique, which employs a very safe, biocompatible and inexpensive material, is ubiquitous with respect to the species of source of hair and additives in solvent, making it viable as an excipient for conventional medical and veterinarian formulations.
Collapse
|
26
|
Thermal Properties of Multilayer Nanocomposites Based on Halloysite Nanotubes and Biopolymers. JOURNAL OF COMPOSITES SCIENCE 2018. [DOI: 10.3390/jcs2030041] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This paper reports a novel procedure to fabricate multilayer composite biofilms based on halloysite nanotubes (HNTs) and sustainable polymers. Among the biopolymers, the non-ionic (hydroxypropyl cellulose) and cationic (chitosan) molecules were selected. The nanocomposites were prepared by the sequential casting of ethanol solutions of hydroxypropyl cellulose and aqueous dispersions of chitosan/HNTs. The composition of the bio-nanocomposites was systematically changed in order to investigate the effect of the hydroxypropyl cellulose/HNTs ratio on the thermal properties of the films, which were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). DSC studies were conducted in the static air (oxidative atmosphere), while TG measurements were carried out under nitrogen flow (inert atmosphere). The analysis of DSC data provided the enthalpy and the temperature for the oxidative degradation of the bio-nanocomposites. These results were helpful to estimate the efficacy of the well-compacted middle layer of HNTs as a flame retardant. TG experiments were performed at a variable heating rate and the collected data were analyzed by the Friedman’s method (non-isothermal thermogravimetric approach) with the aim of studying the kinetics of the hydroxypropyl cellulose degradation in the multilayer nanocomposites. This work represents an advanced contribution for designing novel sustainable nanocomposites with excellent thermal behavior as a consequence of their peculiar multilayer structure.
Collapse
|
27
|
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: 38.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
28
|
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: 2.7] [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.
Collapse
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
| |
Collapse
|
29
|
Fu Y, Gong C, Wang W, Zhang L, Ivanov E, Lvov Y. Antifouling Thermoplastic Composites with Maleimide Encapsulated in Clay Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30083-30091. [PMID: 28812870 DOI: 10.1021/acsami.7b09677] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An antifouling ethylene-vinyl acetate copolymer (EVA) coating with halloysite clay nanotubes loaded with maleimide (TCPM) is prepared. Such antifoulant encapsulation allowed for extended release of TCPM and a long-lasting, efficient protection of the coated surface against marine microorganisms proliferation. Halloysite also induces the composite's anisotropy due to parallel alignment of the nanotubes. The maleimide loaded halloysite incorporated into the polymer matrix allowed for 12-month release of the bacterial inhibitor preventing fouling; it is much longer than the 2-3 month protection when TCPM is directly admixed into EVA. The antifouling properties of the EVA-halloysite nanocomposites were tested by monitoring surface adhesion and proliferation of marine V. natriegens bacteria with SEM. As compared to the composite directly doped with TCPM-antifoulant, there were much less bacteria accumulated on the EVA-halloysite-TCPM coating after a 2-month exposure to seawater. Field tests at South China Sea marine station further confirmed the formulation efficiency. The doping of 28 wt % TCPM loaded halloysite drastically enhanced material antifouling property, which promises wide applications for protective marine coating.
Collapse
Affiliation(s)
| | | | | | | | - Evgenii Ivanov
- I. Gubkin Russian State University of Oil and Gas , Moscow 119296, Russia
| | - Yuri Lvov
- Institute for Micromanufacturing, Louisiana Tech University , Ruston, Louisiana 71272, United States
- I. Gubkin Russian State University of Oil and Gas , Moscow 119296, Russia
| |
Collapse
|