1
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Hu Y, Zhai D, Liang P, Zheng Z, Wang Z, Jiang C, Guo Y, Chen H, Shen C, Wu Y, Yi Y, Zhu H, Liu L, Liu Q. Exploration of formation and in vitro release mechanism of supramolecular self-assembled Licochalcone A eutectogel for food application. Food Chem 2024; 454:139788. [PMID: 38810459 DOI: 10.1016/j.foodchem.2024.139788] [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: 02/28/2024] [Revised: 04/28/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
Licochalcone A (LCA) is extracted from licorice plants and used as a food additive. Citric acid (CA) and alanine (Ala) are food additives with good regulatory functions. This study aims to investigate the formation and in vitro release mechanism of the LCA eutectogel using supramolecular self-assembly technology. The mechanism of self-assembly indicates that the resulting eutectogel has strong intermolecular interactions. The formation mechanism of LCA eutectogel suggests that LCA is dispersed in nano form in the DES solution before self-assembly and dispersed in molecular form in the eutectogel after self-assembly. Mesoscopic MD simulation studies indicate that the interaction energy between LCA Ala-CA(5:5) eutectogel and the solvent interface is relatively low, suggesting it may have a better drug release rate, consistent with the in vitro release results. In conclusion, the study successfully prepares LCA eutectogel and provides theoretical guidance for the development and application of novel eutectogel for food application.
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Affiliation(s)
- Yi Hu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Dan Zhai
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Peiyi Liang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Zeying Zheng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Zhuxian Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - CuiPing Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Yinglin Guo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Hongkai Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Chunyan Shen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Yufan Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Yankui Yi
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Hongxia Zhu
- Southern Medical University, Guangzhou 510315, PR China
| | - Li Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China.
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China.
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2
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Arjunan KK, Weng CY, Sheng YJ, Tsao HK. Formation of Self-Healing Granular Eutectogels through Jammed Carbopol Microgels in Supercooled Deep Eutectic Solvent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:17081-17089. [PMID: 39078642 PMCID: PMC11325637 DOI: 10.1021/acs.langmuir.4c02069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Typically, gel-like materials consist of a polymer network structure in a solvent. In this work, a gel-like material is developed in a deep eutectic solvent (DES) without the presence of a polymer network, achieved simply by adding microgels. The DES is composed of choline chloride and citric acid and remains stably in a supercooled state at room temperature, exhibiting Newtonian fluid behavior with high viscosity. When the microgel (Carbopol) concentration exceeds 2 wt %, the DES undergoes a transition from a liquid to a soft gel state, characterized as a granular eutectogel. The soft gel characteristics of eutectogels exhibit a yield stress, and their storage moduli exceed the loss moduli. The yield stress and storage moduli are observed to increase with increasing microgel concentration. In contrast, the ion conductivity decreases with increasing microgel concentration but eventually levels off. Because the eutectogel can dissolve completely in excess water, it is a physical gel-like material, attributed to the densely packed structure of microgels in the supercooled DES. Due to the absence of networks, the granular eutectogel has the capability to self-heal simply by being pushed together after being cut into two pieces.
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Affiliation(s)
- Karthi Keyan Arjunan
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Chun-Yun Weng
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Yu-Jane Sheng
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Heng-Kwong Tsao
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan
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3
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Sarkar D, Khan AH, Polepalli S, Sarkar R, Das PK, Dutta S, Sahoo N, Bhunia A. Multiscale Materials Engineering via Self-Assembly of Pentapeptide Derivatives from SARS CoV E Protein. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404373. [PMID: 39011730 DOI: 10.1002/smll.202404373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/26/2024] [Indexed: 07/17/2024]
Abstract
Short peptide-based supramolecular hydrogels hold enormous potential for a wide range of applications. However, the gelation of these systems is very challenging to control. Minor changes in the peptide sequence can significantly influence the self-assembly mechanism and thereby the gelation propensity. The involvement of SARS CoV E protein in the assembly and release of the virus suggests that it may have inherent self-assembling properties that can contribute to the development of hydrogels. Here, three pentapeptide sequences derived from C-terminal of SARS CoV E protein are explored with same amino acid residues but different sequence distributions and discovered a drastic difference in the gelation propensity. By combining spectroscopic and microscopic techniques, the relationship between peptide sequence arrangement and molecular assembly structure are demonstrated, and how these influence the mechanical properties of the hydrogel. The present study expands the variety of secondary structures for generating supramolecular hydrogels by introducing the 310-helix as the primary building block for gelation, facilitated by a water-mediated structural transition into β-sheet conformation. Moreover, these Fmoc-modified pentapeptide hydrogels/supramolecular assemblies with tunable morphology and mechanical properties are suitable for tissue engineering, injectable delivery, and 3D bio-printing applications.
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Affiliation(s)
- Dibakar Sarkar
- Department of Chemical Sciences, Bose Institute, Unified Academic Campus, Salt Lake, EN 80, Kolkata, 700 091, India
| | - Aftab Hossain Khan
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A&B Raja S C Mullick Road, Kolkata, 700 032, India
| | - Sainath Polepalli
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, 560 012, India
| | | | - Prasanta Kumar Das
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A&B Raja S C Mullick Road, Kolkata, 700 032, India
| | - Somnath Dutta
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, 560 012, India
| | - Nirakar Sahoo
- School of Integrative Biological and Chemical Sciences, University of Texas Rio Grande Valley, Edinburg, TX, 78539, USA
| | - Anirban Bhunia
- Department of Chemical Sciences, Bose Institute, Unified Academic Campus, Salt Lake, EN 80, Kolkata, 700 091, India
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4
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Esteves C, Roque ACA. Short Peptide and Amino Acid-Based Supramolecular Ionogels and Eutectogels. Chemistry 2024; 30:e202400622. [PMID: 38683743 DOI: 10.1002/chem.202400622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/12/2024] [Accepted: 04/29/2024] [Indexed: 05/02/2024]
Abstract
The capability of peptide and amino acid-based molecules to act as ionogelators and eutectogelators entrapping ionic liquids (ILs) and deep eutectic solvents (DESs) forming ionogels and eutectogels has gathered attention in recent decades. The self-assembly process, primarily driven by non-covalent interactions as hydrogen bonding, remains serendipitous in nature. This review provides a comprehensive and detailed report on self-assembly of unmodified and modified amino acids and peptides in the non-conventional solvents, ILs and DESs. Understanding these processes holds great promise for the development of innovative soft-materials, and to the progress of supramolecular systems in non-conventional solvent environments.
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Affiliation(s)
- Carina Esteves
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Campus da Caparica, 2829-516, Caparica, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Chemistry Department, NOVA School of Science and Technology, NOVA University of Lisbon, Campus da Caparica, 2829-516, Caparica, Portugal
| | - Ana Cecília A Roque
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University of Lisbon, Campus da Caparica, 2829-516, Caparica, Portugal
- UCIBIO - Applied Molecular Biosciences Unit, Chemistry Department, NOVA School of Science and Technology, NOVA University of Lisbon, Campus da Caparica, 2829-516, Caparica, Portugal
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5
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Zhang X, Liu S, Wang X, Peng J, Yang W, Ma Y, Fan K. Hydrophobic deep eutectic solvent-based eutectogels for underwater sensing. J Colloid Interface Sci 2024; 654:1348-1355. [PMID: 37913724 DOI: 10.1016/j.jcis.2023.10.142] [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: 08/22/2023] [Revised: 10/14/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023]
Abstract
Eutectogels derived from deep eutectic solvents (DESs) exhibit great potential for the fabrication of flexible sensors. However, the hygroscopicity of eutectogels hinders their applications in underwater sensing. In this work, a hydrophobic eutectogel with exceptional long-term underwater stability is produced through one-step polymerization of lauryl methacrylate and glycidyl methacrylate in a hydrophobic DES. The hydrophobic gel network and hydrophobic DES fulfill the eutectogel with outstanding water resistance (water contact angle > 110°) and excellent mechanical properties in an aqueous environment, thus leading to extraordinary durability (over 1000 testing cycles). Additionally, based on this eutectogel, underwater strain and pressure sensors with high sensitivity, rapid responsiveness, and superior durability were fabricated for accurate real-time monitoring of human activity. Furthermore, it has been demonstrated that the eutectogel sensor can transmit information through Morse code, performing as a wearable underwater communicator. This research provides an exemplary way for a demonstration method of hydrophobic eutectogel for durable underwater applications.
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Affiliation(s)
- Xiaojing Zhang
- College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China.
| | - Sen Liu
- College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Xiaobo Wang
- Journal Editorial Department, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Jiwei Peng
- College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Wentong Yang
- College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Yongpeng Ma
- College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China
| | - Kaiqi Fan
- College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China.
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6
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Smith DK. Supramolecular gels - a panorama of low-molecular-weight gelators from ancient origins to next-generation technologies. SOFT MATTER 2023; 20:10-70. [PMID: 38073497 DOI: 10.1039/d3sm01301d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Supramolecular gels, self-assembled from low-molecular-weight gelators (LMWGs), have a long history and a bright future. This review provides an overview of these materials, from their use in lubrication and personal care in the ancient world, through to next-generation technologies. In academic terms, colloid scientists in the 19th and early 20th centuries first understood such gels as being physically assembled as a result of weak interactions, combining a solid-like network having a degree of crystalline order with a highly mobile liquid-like phase. During the 20th century, industrial scientists began using these materials in new applications in the polymer, oil and food industries. The advent of supramolecular chemistry in the late 20th century, with its focus on non-covalent interactions and controlled self-assembly, saw the horizons for these materials shifted significantly beyond their historic rheological applications, expanding their potential. The ability to tune the LMWG chemical structure, manipulate hierarchical assembly, develop multi-component systems, and introduce new types of responsive and interactive behaviour, has been transformative. Furthermore, the dynamics of these materials are increasingly understood, creating metastable gels and transiently-fueled systems. New approaches to shaping and patterning gels are providing a unique opportunity for more sophisticated uses. These supramolecular advances are increasingly underpinning and informing next-generation applications - from drug delivery and regenerative medicine to environmental remediation and sustainable energy. In summary, this article presents a panorama over the field of supramolecular gels, emphasising how both academic and industrial scientists are building on the past, and engaging new fundamental insights and innovative concepts to open up exciting horizons for their future use.
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Affiliation(s)
- David K Smith
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
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7
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Fang X, Li Y, Kua YL, Chew ZL, Gan S, Tan KW, Lee TZE, Cheng WK, Lau HLN. Insights on the potential of natural deep eutectic solvents (NADES) to fine-tune durian seed gum for use as edible food coating. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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8
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Marullo S, Tiecco M, Germani R, D'Anna F. Highly recyclable surfactant-based supramolecular eutectogels for iodine removal. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Self-Assembly of Alkylamido Isophthalic Acids toward the Design of a Supergelator: Phase-Selective Gelation and Dye Adsorption. Gels 2022; 8:gels8050285. [PMID: 35621583 PMCID: PMC9140382 DOI: 10.3390/gels8050285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/27/2022] [Accepted: 05/02/2022] [Indexed: 02/01/2023] Open
Abstract
A new series of 5-alkylamido isophthalic acid (ISA) derivatives with varying single and twin alkyl chain lengths were designed and synthesized as potential supramolecular organogelators. 5-alkylamido ISAs with linear or branched alkyl tail-groups of different lengths were effective gelators for low polarity solvents. In particular, among the presented series, a derivative with a branched, 24 carbon atom tail-group behaves as a “supergelator” with up to twenty organic solvents forming gels that are highly stable over time. The gelation behavior was analyzed using Hansen solubility parameters, and the thermal stability and viscoelastic properties of select gels were characterized. Microscopy, spectroscopy, powder X-ray diffraction, and computer modeling studies were consistent with a hierarchical self-assembly process involving the formation of cyclic H-bonded hexamers via the ISA carboxylic acid groups, which stack into elementary fibers stabilized by H-bonding of the amide linker groups and π–π stacking of the aromatic groups. These new nanomaterials exhibited potential for the phase-selective gelation of oil from oil–water mixtures and dye uptake from contaminated water. The work expands upon the design and synthesis of supramolecular self-assembled nanomaterials and their application in water purification/remediation.
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10
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Zhang Y, Wang H, Li Q, Chen X. Gelation behavior and supramolecular chirality of a BTA derivative in a deep eutectic solvent. SOFT MATTER 2022; 18:3241-3248. [PMID: 35393998 DOI: 10.1039/d2sm00028h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As novel solvents, deep eutectic solvents (DESs) are non-toxic, easily producible and biocompatible, which is attractive for eutectogel fabrication. In this work, a benzene 1,3,5-tricarboxamide (BTA) derivative (substituted by three hexanoic acid) was selected to prepare a supramolecular gel in a suitable DES composed of choline chloride and phenylacetic acid molecules. The obtained eutectogel exhibited higher stability than that produced in conventional solvents. The gel microstructure was composed of spiral fiber networks as confirmed from atomic force microscopy and scanning electron microscopy observations. Macroscopic chirality was therefore recognized by the circular dichromatic spectrum, though such a supramolecular chiral signal was random. To explore the gelation mechanism, the effect of BTA derivative molecular structure change was systematically investigated. With the help of Fourier transform infrared spectroscopy and powder X-ray diffraction, the gel formation was attributed to the π-π stacking of adjacent BTA molecules and the three-fold hydrogen bond between amide groups or the hydrogen bond between carboxylic groups. Furthermore, the directional hydrogen bonds between BTA and solvent molecules induced their aggregate to form one-dimensional fibers, which were either left- or right-handed. The obtained results not only extend the gel systems in DESs, but also help design the supramolecular chirality from non-chiral molecules.
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, 250100, China.
| | - Hejie Wang
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, 250100, China.
| | - Qintang Li
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Xiao Chen
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, 250100, China.
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11
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Kumar D, Mohammad SA, Kumar A, Mane SR, Banerjee S. Amino acid-derived ABCBA-type antifouling biohybrid with multi-stimuli responsivity and contaminant removal capability. Polym Chem 2022. [DOI: 10.1039/d2py00280a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A multi-stimuli (pH/thermo/redox)-responsive amphiphilic poly(cysteine methacrylamide)-block-poly(N,N-dimethylaminoethyl methacrylate)-block-polybutadiene-block-poly(N,N-dimethylaminoethyl methacrylate)-block-poly(cysteine methacrylamide) (PCysMAM-b-PDMAEMA-b-PB-b-PDMAEMA-b-PCysMAM) pentablock copolymer biohybrids, based on hydrophobic PB, ampholytic redox responsive PCysMAM and dual (pH and temperature) stimuli responsive PDMAEMA segments,...
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12
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Wang M, Day S, Wu Z, Wan X, Ye X, Cheng B. A new type of porous Zn (II) metal-organic gel designed for effective adsorption to methyl orange dye. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127335] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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13
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Makeiff D, Cho J, Godbert N, Smith B, Azyat K, Wagner A, Kulka M, Carlini R. Supramolecular gels from alkylated benzimidazolone derivatives. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Wang S, Cheng H, Yao B, He H, Zhang L, Yue S, Wang Z, Ouyang J. Self-Adhesive, Stretchable, Biocompatible, and Conductive Nonvolatile Eutectogels as Wearable Conformal Strain and Pressure Sensors and Biopotential Electrodes for Precise Health Monitoring. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20735-20745. [PMID: 33900075 DOI: 10.1021/acsami.1c04671] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Conductive stretchable hydrogels and ionogels consisting of ionic liquids can have interesting application as wearable strain and pressure sensors and bioelectrodes due to their soft nature and high conductivity. However, hydrogels have a severe stability problem because of water evaporation, whereas ionogels are not biocompatible or even toxic. Here, we demonstrate self-adhesive, stretchable, nonvolatile, and biocompatible eutectogels that can always form conformal contact to skin even during body movement along with their application as wearable strain and pressure sensors and biopotential electrodes for precise health monitoring. The eutectogels consist of a deep eutectic solvent that has high conductivity, waterborne polyurethane that is an elastomer, and tannic acid that is an adhesive. They can have an elongation at a break of 178%, ionic conductivity of 0.22 mS/cm, and adhesion force of 12.5 N/m to skin. They can be used as conformal strain sensors to accurately monitor joint movement and breath. They can be even used as pressure sensors with a piezoresistive sensitivity of 284.4 kPa-1 to precisely detect subtle physical movements like arterial pulses, which can provide vital cardiovascular information. Moreover, the eutectogels can be used as nonvolatile conformal electrodes to monitor epidermal physiological signals, such as electrocardiogram (ECG) and electromyogram (EMG).
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Affiliation(s)
- Shan Wang
- State Key Lab of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hanlin Cheng
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574
| | - Bing Yao
- State Key Lab of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hao He
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574
| | - Lei Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574
| | - Shizhong Yue
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574
| | - Zongrong Wang
- State Key Lab of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianyong Ouyang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574
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15
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Sun M, Li Q, Chen X. Self-assembled luminescent cholate gels induced by a europium ion in deep eutectic solvents. SOFT MATTER 2021; 17:2815-2822. [PMID: 33554999 DOI: 10.1039/d0sm02224a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Deep eutectic solvents (DESs) with excellent physicochemical properties similar to ionic liquids and biocompatibility are potential solvent candidates for designing novel lanthanide luminescent soft materials. In this paper, the fabrication and characterization of such luminescent gels in three choline chloride (ChCl)-based DESs through self-assembly of the sodium cholate and europium nitrate are presented. The microstructure and gel-like nature of the obtained eutectogels were explored and confirmed by scanning electron microscopy and rheology measurements. While Fourier transform infrared spectroscopy and small-angle X-ray scattering were used to analyze the gel formation mechanism, which was considered to be synergistically driven by metal coordination, hydrogen bonding and solvophobic interactions. All three eutectogels exhibited good photophysical properties. Among these, the one formed in ChCl/urea DES was found to possess the strongest mechanical strength. While the one formed in ChCl/glycerol DES exhibited the longest luminescence lifetime and quantum efficiency. The obtained results demonstrate the possibility of using DESs to construct lanthanide luminescent soft materials or control their properties through the choice of hydrogen-bond donor molecules.
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Affiliation(s)
- Meng Sun
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, 250100, China.
| | - Qintang Li
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Xiao Chen
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, 250100, China.
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16
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Alam N, Sarma D. A thixotropic supramolecular metallogel with a 2D sheet morphology: iodine sequestration and column based dye separation. SOFT MATTER 2020; 16:10620-10627. [PMID: 33079107 DOI: 10.1039/d0sm00959h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sequestration of hazardous radioactive iodine and dye separation to reduce industrial waste through reutilization is pivotal for environmental safety. In this regard, herein, the synthesis of a new waterborne ultrasensitive supramolecular metallogel (Mg@DEOA) with a 2D sheet morphology is accomplished through direct mixing of a low molecular weight gelator diethanolamine and magnesium nitrate hexahydrate. This porous metallogel (180 m2 g-1) exhibits thixotropic properties and is injectable. The material was found to be an effective (587 mg g-1) host matrix for iodine sequestration from solution. Moreover, the Mg@DEOA xerogel was used to efficiently remove rhodamine B from a mixture of dyes with high separation factors through a xerogel packed column and as an adsorbent material for water-soluble dyes and CO. This column based application demonstrated by the metallogel could be useful for practical industrial dye-separation.
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Affiliation(s)
- Noohul Alam
- Department of Chemistry, Indian Institute of Technology Patna, Bihar 801106, India.
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17
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McNeice P, Reid A, Imam HT, McDonagh C, Walby JD, Collins TJ, Marr AC, Marr PC. Designing Materials for Aqueous Catalysis: Ionic Liquid Gel and Silica Sphere Entrapped Iron-TAML Catalysts for Oxidative Degradation of Dyes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:14026-14035. [PMID: 33103422 DOI: 10.1021/acs.est.0c04279] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Materials have been developed that encapsulate a homogeneous catalyst and enable it to operate as a heterogeneous catalyst in water. A hydrophobic ionic liquid within the material was used to dissolve Fe-TAML and keep it from leaching into the aqueous phase. One-pot processes were used to entrap Fe-TAML in basic ionic liquid gels, and ionic liquid gel spheres structured via a modified Stöber synthesis forming SiO2 particles of uniform size. Catalytic activity was demonstrated via the oxidative degradation of dyes. Fe-TAML entrapped in a basic ionic liquid gel exhibited consistent activity in five recycles. This discovery of heterogenized H2O2 activators prepared by sol-gel and Stöber processes opens new possibilities for the creation of engineered catalytic materials for water purification.
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Affiliation(s)
- Peter McNeice
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
- Queen's University Ionic Liquids Laboratories, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | - Andrew Reid
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | - Hasan T Imam
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
- Queen's University Ionic Liquids Laboratories, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | - Carol McDonagh
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | - Joel D Walby
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | - Terrence J Collins
- Institute for Green Science, Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Andrew C Marr
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
- Queen's University Ionic Liquids Laboratories, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | - Patricia C Marr
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
- Queen's University Ionic Liquids Laboratories, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
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18
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Tomé LC, Mecerreyes D. Emerging Ionic Soft Materials Based on Deep Eutectic Solvents. J Phys Chem B 2020; 124:8465-8478. [DOI: 10.1021/acs.jpcb.0c04769] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Liliana C. Tomé
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
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