1
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Teng M, Li J, Li Z, Zhang G, Zhao P, Fu Q. Recrystallization Mediates the Gelation of Amorphous Drugs: The Case of Acemetacin. Pharmaceutics 2023; 15:pharmaceutics15010219. [PMID: 36678848 PMCID: PMC9860709 DOI: 10.3390/pharmaceutics15010219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/30/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
Amorphization is widely used as an effective method of increasing the solubility of insoluble drugs. However, some amorphous drugs exhibit a much lower dissolution rate than their corresponding crystalline form due to their gelation. In this study, we reported the gels formed from amorphous acemetacin (ACM) for the first time. Gelation was promoted at conditions of lower pH, higher temperature and lower ionic strength. Solid-state characterizations suggested that ACM gels may be formed by recrystallization. This mechanism provides a new direction in facilitating the elimination of gelation for amorphous drugs. Moreover, it also provides the basis for the development of sustained-release formulations using the gelation properties.
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Affiliation(s)
| | | | | | | | | | - Qiang Fu
- Correspondence: ; Tel./Fax: +86-24-23986325
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2
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Su M, Zhang J, Li Z, Wei Y, Zhang J, Pang Z, Gao Y, Qian S, Heng W. Recent advances on small molecular gels: formation mechanism and their application in pharmaceutical fields. Expert Opin Drug Deliv 2022; 19:1597-1617. [PMID: 36259939 DOI: 10.1080/17425247.2022.2138329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
INTRODUCTION As an essential complement to chemically cross-linked macromolecular gels, drug delivery systems based on small molecular gels formed under the driving forces of non-covalent interactions are attracting considerable research interest due to their potential advantages of high structural functionality, lower biological toxicity, reversible stimulus-response, and so on. AREA COVERED The present review summarizes recent advances in small molecular gels and provides their updates as a comprehensive overview in terms of gelation mechanism, gel properties, and physicochemical characterizations. In particular, this manuscript reviews the effects of drug-based small molecular gels on the drug development and their potential applications in the pharmaceutical fields. EXPERT OPINION Small molecular-based gel systems, constructed by inactive compounds or active pharmaceutical ingredients, have been extensively studied as carriers for drug delivery in pharmaceutical field, such as oral formulations, injectable formulations, and transdermal formulations. However, the construction of such gel systems yet faces several challenges such as rational and efficient design of functional gelators and the great occasionality of drug-based gel formation. Thus, a deeper understanding of the gelation mechanism and its relationship with gel properties will be conducive to the construction of small molecular gels systems and their future application.
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Affiliation(s)
- Meiling Su
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jingwen Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zudi Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
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3
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Cao BP, Dai C, Wang X, Xiao Q, Wei D. Ultrasensitive and Regenerative Transistor Sensor Based on Dynamic Covalent Chemistry. SENSORS (BASEL, SWITZERLAND) 2022; 22:6947. [PMID: 36146305 PMCID: PMC9505547 DOI: 10.3390/s22186947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Field-effect transistor (FET) sensors require not only high sensitivity but also excellent regeneration ability before widespread applications are possible. Although some regenerative FETs have been reported, their lowest limit of detection (LoD) barely achieves 10-15 mol L-1. Here, we develop a graphene FET with a regenerative sensing interface based on dynamic covalent chemistry (DCvC). The LoD down to 5.0 × 10-20 mol L-1 remains even after 10 regenerative cycles, around 4-5 orders of magnitude lower than existing transistor sensors. Owing to its ultra-sensitivity, regeneration ability, and advantages such as simplicity, low cost, label-free and real-time response, the FET sensor based on DCvC is valuable in applications such as medical diagnosis, environment monitoring, etc.
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Affiliation(s)
- Ban-Peng Cao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Changhao Dai
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Xuejun Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Qiang Xiao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Dacheng Wei
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
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4
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In Situ Supramolecular Gel Formed by Cyclohexane Diamine with Aldehyde Derivative. Polymers (Basel) 2022; 14:polym14030400. [PMID: 35160389 PMCID: PMC8840383 DOI: 10.3390/polym14030400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/05/2023] Open
Abstract
Low-molecular-weight gels have great potential for use in a variety of fields, including petrochemicals, healthcare, and tissue engineering. These supramolecular gels are frequently metastable, implying that their properties are kinetically controlled to some extent. Here, we report on the in situ supramolecular gel formation by mixing 1,3-cyclohexane diamine (1) and isocyanate derivative (2) without any catalysis at room temperature in various organic solvents. A mixture of building blocks 1 and 2 in various organic solvents, dichloromethane, tetrahydrofuran, chloroform, toluene, and 1,4-dioxane, resulted in the stable formation of supramolecular gel at room temperature within 60–100 s. This gel formation was caused by the generation of urea moieties, which allows for the formation of intermolecular hydrogen-bonding interactions via reactions 1 and 2. In situ supramolecular gels demonstrated a typical entangled fiber structure with a width of 600 nm and a length of several hundred μm. In addition, the supramolecular gels were thermally reversible by heating and cooling. The viscoelastic properties of supramolecular gels in strain and frequency sweets were enhanced by increasing the concentration of a mixed 1 and 2. Furthermore, the supramolecular gels displayed a thixotropic effect, indicating a thermally reversible gel.
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5
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Panja S. Dosimetric gelator probes and their application as sensors. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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6
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Feng X, Luo Y, Li F, Jian X, Liu Y. Development of Natural-Drugs-Based Low-Molecular-Weight Supramolecular Gels. Gels 2021; 7:105. [PMID: 34449606 PMCID: PMC8395818 DOI: 10.3390/gels7030105] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/01/2021] [Accepted: 08/01/2021] [Indexed: 12/16/2022] Open
Abstract
Natural small molecular drugs with excellent biocompatibility, diverse pharmacological activities, and wide sources play an increasingly important role in the development of new drug and disease treatment. In recent years, the utilization of paclitaxel, camptothecin, rhein, curcumin, and other natural small molecular drugs with unique rigid backbone structures and modifiable multiple sites as building blocks to form gels by self-assembly has attracted widespread attention. The obtained low-molecular-weight supramolecular gel not only retains the general characteristics of the gel but also overcomes the shortcomings of natural drugs, such as poor water solubility and low bioavailability. It has the advantages of high drug loading, low toxicity, and outstanding stimulus responsiveness, which is widely used in biomedical fields. Here, we provided a comprehensive review of natural-drugs-based low-molecular-weight supramolecular gels reported in recent years and summarized their assembly mechanism, gel structure, gel properties, and potential applications. It is expected to provide a reference for further research of natural-drugs-based supramolecular gels.
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Affiliation(s)
| | | | | | | | - Yang Liu
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China; (X.F.); (Y.L.); (F.L.); (X.J.)
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7
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Dang DQ, Park N, Kim J, Kim J. Dual‐crosslinked hydrogels with metal coordination from novel co‐polyaspartamide containing 1,2‐dihydroxy and imidazole pendant groups. J Appl Polym Sci 2021. [DOI: 10.1002/app.51278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Dat Quoc Dang
- Department of Chemical Engineering Sungkyunkwan University Suwon South Korea
| | - Nuri Park
- Department of Chemical Engineering Sungkyunkwan University Suwon South Korea
| | - Jaeyun Kim
- Department of Chemical Engineering Sungkyunkwan University Suwon South Korea
| | - Ji‐Heung Kim
- Department of Chemical Engineering Sungkyunkwan University Suwon South Korea
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8
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Panja S, Adams DJ. Stimuli responsive dynamic transformations in supramolecular gels. Chem Soc Rev 2021; 50:5165-5200. [PMID: 33646219 DOI: 10.1039/d0cs01166e] [Citation(s) in RCA: 162] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Supramolecular gels are formed by the self-assembly of small molecules under the influence of various non-covalent interactions. As the interactions are individually weak and reversible, it is possible to perturb the gels easily, which in turn enables fine tuning of their properties. Synthetic supramolecular gels are kinetically trapped and usually do not show time variable changes in material properties after formation. However, such materials potentially become switchable when exposed to external stimuli like temperature, pH, light, enzyme, redox, and chemical analytes resulting in reconfiguration of gel matrix into a different type of network. Such transformations allow gel-to-gel transitions while the changes in the molecular aggregation result in alteration of physical and chemical properties of the gel with time. Here, we discuss various methods that have been used to achieve gel-to-gel transitions by modifying a pre-formed gel material through external perturbation. We also describe methods that allow time-dependent autonomous switching of gels into different networks enabling synthesis of next generation functional materials. Dynamic modification of gels allows construction of an array of supramolecular gels with various properties from a single material which eventually extend the limit of applications of the gels. In some cases, gel-to-gel transitions lead to materials that cannot be accessed directly. Finally, we point out the necessity and possibility of further exploration of the field.
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Affiliation(s)
- Santanu Panja
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Dave J Adams
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
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9
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Feng Z, Lin S, McDonagh A, Yu C. Natural Hydrogels Applied in Photodynamic Therapy. Curr Med Chem 2020; 27:2681-2703. [PMID: 31622196 DOI: 10.2174/0929867326666191016112828] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 08/27/2019] [Accepted: 10/04/2019] [Indexed: 01/11/2023]
Abstract
Natural hydrogels are three-dimensional (3D) water-retaining materials with a skeleton consisting of natural polymers, their derivatives or mixtures. Natural hydrogels can provide sustained or controlled drug release and possess some unique properties of natural polymers, such as biodegradability, biocompatibility and some additional functions, such as CD44 targeting of hyaluronic acid. Natural hydrogels can be used with photosensitizers (PSs) in photodynamic therapy (PDT) to increase the range of applications. In the current review, the pertinent design variables are discussed along with a description of the categories of natural hydrogels available for PDT.
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Affiliation(s)
- Zhipan Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shiying Lin
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | | | - Chen Yu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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10
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Yang H, Ghiassinejad S, van Ruymbeke E, Fustin CA. Tunable Interpenetrating Polymer Network Hydrogels Based on Dynamic Covalent Bonds and Metal–Ligand Bonds. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00494] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hui Yang
- Bio and Soft Matter Division (BSMA), Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain, Place L. Pasteur 1 & Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium
| | - Sina Ghiassinejad
- Bio and Soft Matter Division (BSMA), Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain, Place L. Pasteur 1 & Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium
| | - Evelyne van Ruymbeke
- Bio and Soft Matter Division (BSMA), Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain, Place L. Pasteur 1 & Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium
| | - Charles-André Fustin
- Bio and Soft Matter Division (BSMA), Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain, Place L. Pasteur 1 & Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium
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11
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Cai G, Zeng L, He L, Sun S, Tong Y, Zhang J. Imine Gels Based on Ferrocene and Porphyrin and Their Electrocatalytic Property. Chem Asian J 2020; 15:1963-1969. [DOI: 10.1002/asia.202000083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/15/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Guangmei Cai
- Sun Yat-Sen UniversityMOE Laboratory of Polymeric Composite and Functional Materials School of Materials Science and Engineering Guangzhou 510275 China
| | - Lihua Zeng
- Sun Yat-Sen UniversityMOE Laboratory of Polymeric Composite and Functional Materials School of Materials Science and Engineering Guangzhou 510275 China
| | - Lanqi He
- Sun Yat-Sen UniversityMOE Laboratory of Polymeric Composite and Functional Materials School of Materials Science and Engineering Guangzhou 510275 China
| | - Shujian Sun
- Sun Yat-Sen UniversityMOE Laboratory of Polymeric Composite and Functional Materials School of Materials Science and Engineering Guangzhou 510275 China
| | - Yexiang Tong
- Sun Yat-Sen UniversityMOE Laboratory of Polymeric Composite and Functional Materials School of Materials Science and Engineering Guangzhou 510275 China
| | - Jianyong Zhang
- Sun Yat-Sen UniversityMOE Laboratory of Polymeric Composite and Functional Materials School of Materials Science and Engineering Guangzhou 510275 China
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12
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Hawkins K, Patterson AK, Clarke PA, Smith DK. Catalytic Gels for a Prebiotically Relevant Asymmetric Aldol Reaction in Water: From Organocatalyst Design to Hydrogel Discovery and Back Again. J Am Chem Soc 2020; 142:4379-4389. [PMID: 32023044 PMCID: PMC7146862 DOI: 10.1021/jacs.9b13156] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Indexed: 12/14/2022]
Abstract
This paper reports an investigation into organocatalytic hydrogels as prebiotically relevant systems. Gels are interesting prebiotic reaction media, combining heterogeneous and homogeneous characteristics with a structurally organized active "solid-like" catalyst separated from the surrounding environment, yet in intimate contact with the solution phase and readily accessible via "liquid-like" diffusion. A simple self-assembling glutamine amide derivative 1 was initially found to catalyze a model aldol reaction between cyclohexanone and 4-nitrobenzaldehyde, but it did not maintain its gel structure during reaction. In this study, it was observed that compound 1 could react directly with the benzaldehyde to form a hydrogel in situ based on Schiff base 2 as a low-molecular-weight gelator (LMWG). This new dynamic gel is a rare example of a two-component self-assembled LMWG hydrogel and was fully characterized. It was demonstrated that glutamine amide 1 could select an optimal aldehyde component and preferentially assemble from mixtures. In the hunt for an organocatalyst, reductive conditions were applied to the Schiff base to yield secondary amine 3, which is also a highly effective hydrogelator at very low loadings with a high degree of nanoscale order. Most importantly, the hydrogel based on 3 catalyzed the prebiotically relevant aldol dimerization of glycolaldehyde to give threose and erythrose. In buffered conditions, this reaction gave excellent conversions, good diastereoselectivity, and some enantioselectivity. Catalysis using the hydrogel of 3 was much better than that using non-assembled 3-demonstrating a clear benefit of self-assembly. The results suggest that hydrogels offer a potential strategy by which prebiotic reactions can be promoted using simple, prebiotically plausible LMWGs that can selectively self-organize from complex mixtures. Such processes may have been of prebiotic importance.
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Affiliation(s)
- Kirsten Hawkins
- Department of Chemistry, University
of York, Heslington, York YO10 5DD, U.K.
| | - Anna K. Patterson
- Department of Chemistry, University
of York, Heslington, York YO10 5DD, U.K.
| | - Paul A. Clarke
- Department of Chemistry, University
of York, Heslington, York YO10 5DD, U.K.
| | - David K. Smith
- Department of Chemistry, University
of York, Heslington, York YO10 5DD, U.K.
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13
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Cheng X, Li M, Wang H, Cheng Y. All-small-molecule dynamic covalent gels with antibacterial activity by boronate-tannic acid gelation. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Bao X, Liu J, Zheng Q, Pei W, Yang Y, Dai Y, Tu T. Visual recognition of melamine in milk via selective metallo-hydrogel formation. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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15
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Panja S, Dietrich B, Adams DJ. Chemically Fuelled Self‐Regulating Gel‐to‐Gel Transition. CHEMSYSTEMSCHEM 2019. [DOI: 10.1002/syst.201900038] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Santanu Panja
- School of ChemistryUniversity of Glasgow Glasgow G12 8QQ UK
| | - Bart Dietrich
- School of ChemistryUniversity of Glasgow Glasgow G12 8QQ UK
| | - Dave J. Adams
- School of ChemistryUniversity of Glasgow Glasgow G12 8QQ UK
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16
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Boul PJ, Rasner DK, Jarowski PD, Thaemlitz CJ. Coordination Dynamics and Thermal Stability with Aminal Metallogels and Liquids. Polymers (Basel) 2019; 11:polym11081237. [PMID: 31357388 PMCID: PMC6723235 DOI: 10.3390/polym11081237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/05/2019] [Accepted: 07/13/2019] [Indexed: 12/03/2022] Open
Abstract
In this article, we review a dynamic covalent gel system developed as a high temperature well construction fluid. The key gel/fluid phase changes and related materials properties are addressable via the constitutional and coordination dynamics of the equilibrium and non-equilibrium molecular species comprising the material. The interplay between these species and external stimuli leads to material adaptability. Specifically, the introduction of metal ions into a non-equilibrium hemiaminal gel reverts this phase into a non-equilibrium liquid. When heated, this liquid transforms itself catalytically into the thermodynamically favoured closed-ring polyhexahydrotriazine (PHT) gel product. The temperature stability of different PHT gel formulations is evaluated as a function of the inclusion of various salts. It is possible to revert this thermodynamic PHT gel back into a liquid. This pH dependent transformation depends on the R groups linking the hexahydrotriazines (HTs) to one another. While polyethylene glycol (PEG) based PHT gels revert to liquids with water and mild protonation conditions, in comparison, polypropylene glycol (PPG) based gels require stronger acid conditions with heat, or a different more nucleophilically driven ring-opening mechanism by, for example, phosphines. The covalent dynamic chemistry in this chemical system gives way to many possible applications in addition to the high temperature solution-gelation (sol-gels) for which it has been primarily designed.
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Affiliation(s)
- Peter J Boul
- Aramco Services Company, Aramco Research Center, 16300 Park Row Blvd. Houston, Houston, TX 77084, USA.
| | - Diana K Rasner
- Aramco Services Company, Aramco Research Center, 16300 Park Row Blvd. Houston, Houston, TX 77084, USA
| | - Peter D Jarowski
- Aramco Services Company, Aramco Research Center, 16300 Park Row Blvd. Houston, Houston, TX 77084, USA
| | - Carl J Thaemlitz
- Aramco Services Company, Aramco Research Center, 16300 Park Row Blvd. Houston, Houston, TX 77084, USA
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17
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Feng X, Liao P, Jiang J, Shi J, Ke Z, Zhang J. Perylene Diimide Based Imine Cages for Inclusion of Aromatic Guest Molecules and Visible‐Light Photocatalysis. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900058] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiying Feng
- Sun Yat-Sen University MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and Engineering Guangzhou 510275 China
| | - Peisen Liao
- Sun Yat-Sen University MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and Engineering Guangzhou 510275 China
| | - Jingxing Jiang
- Sun Yat-Sen University MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and Engineering Guangzhou 510275 China
| | - Jianying Shi
- Sun Yat-Sen University MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and Engineering Guangzhou 510275 China
| | - Zhuofeng Ke
- Sun Yat-Sen University MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and Engineering Guangzhou 510275 China
| | - Jianyong Zhang
- Sun Yat-Sen University MOE Laboratory of Polymeric Composite and Functional MaterialsSchool of Materials Science and Engineering Guangzhou 510275 China
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18
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Zhang J, Chen J, Peng S, Peng S, Zhang Z, Tong Y, Miller PW, Yan XP. Emerging porous materials in confined spaces: from chromatographic applications to flow chemistry. Chem Soc Rev 2019; 48:2566-2595. [DOI: 10.1039/c8cs00657a] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Porous materials confined within capillary columns/microfluidic devices are discussed, and progress in chromatographic and membrane separations and catalysis is reviewed.
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Affiliation(s)
- Jianyong Zhang
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Junxing Chen
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Sheng Peng
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Shuyin Peng
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Zizhe Zhang
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Yexiang Tong
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | | | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology
- International Joint Laboratory on Food Safety
- School of Food Science and Technology
- Jiangnan University
- Wuxi 214122
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19
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Ghobashy MM, Younis SA, Elhady MA, Serp P. Radiation induced in-situ cationic polymerization of polystyrene organogel for selective absorption of cholorophenols from petrochemical wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 210:307-315. [PMID: 29358125 DOI: 10.1016/j.jenvman.2018.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 12/31/2017] [Accepted: 01/04/2018] [Indexed: 06/07/2023]
Abstract
A new in-situ cationic polymerization was performed to synthesize a cross-linked (91%) polystyrene (PS) organogel through tetrachloroethylene radiolysis assisted by 60Co gamma rays. Hoernschemeyer diagram and swelling capacity test show a better selectivity of PS organogel to chlorinated molecules compared to ester, hydrocarbons and alcohols organic molecules by 80-184 folds. Response surface modeling (RSM) of CPs (2,4,6-trichlorophenol) sorption from artificial wastewater confirm superiority of PS organogel to absorb 1746 μmol CPs/g (∼345 mg CPs/g) at broad pH (4-10) and temperature (25-45 °C). Based on ANOVA statistic, simulated CPs absorption model onto PS organogel was successfully developed, with accuracy of prediction of R2≈ RAdj2 of 0.991-0.995 and lower coefficient of variation of 2.73% with Fmodel of 611.4 at p < .0001. Particularly, the usage of PS organogel for petroleum wastewater reclamation exhibited higher absorption affinities for all the organic contaminants especially for CPs (>99%) by non-covalent and/or dispersive interaction mechanisms with a well-term reusability and good stability up to 5 cycles.
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Affiliation(s)
- Mohamed M Ghobashy
- Radiation Research of Polymer Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, P.O. 29, Nasr City, Cairo, Egypt.
| | - Sherif A Younis
- Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City, P.O. Box 11727, Cairo, Egypt; Laboratoire de Chimie de Coordination UPR CNRS 8241, composante ENSIACET, Université de Toulouse, UPS-INP-LCC, 4 allée Emile Monso, BP 44362, 31030, Toulouse Cedex 4, France.
| | - Mohamed A Elhady
- Radiation Research of Polymer Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, P.O. 29, Nasr City, Cairo, Egypt
| | - Philippe Serp
- Laboratoire de Chimie de Coordination UPR CNRS 8241, composante ENSIACET, Université de Toulouse, UPS-INP-LCC, 4 allée Emile Monso, BP 44362, 31030, Toulouse Cedex 4, France
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Yang H, Tang J, Shang C, Miao R, Zhang S, Liu K, Fang Y. Calix[4]arene-Based Dynamic Covalent Gels: Marriage of Robustness, Responsiveness, and Self-Healing. Macromol Rapid Commun 2017; 39. [DOI: 10.1002/marc.201700679] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/06/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Hui Yang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education); School of Materials Science and Engineering; Shaanxi Normal University; Xi'an 710119 P. R. China
| | - Jiaqi Tang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education); School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710119 P. R. China
| | - Congdi Shang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education); School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710119 P. R. China
| | - Rong Miao
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education); School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710119 P. R. China
| | - Shaofei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education); School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710119 P. R. China
| | - Kaiqiang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education); School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710119 P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education); School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710119 P. R. China
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Lin Q, Jiang XM, Liu L, Chen JF, Zhang YM, Yao H, Wei TB. A novel supramolecular organogel based on acylhydrazone functionalized pillar[5]arene acts as an I - responsive smart material. SOFT MATTER 2017; 13:7222-7226. [PMID: 28932857 DOI: 10.1039/c7sm01576c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel organic gelator (PZ) has been synthesized by rationally connecting a pillar[5]arene moiety and a bis(hexadecyloxy)phenyl functionalized acylhydrazone moiety. PZ could self-assemble into a supramolecular polymer and form a stable organogel (OPZ) in cyclohexanol by multi-self-assembly driving forces such as C-Hπ, ππ, vdW and hydrogen bonding interactions. The organogel (OPZ) shows blue aggregation-induced emission (AIE). Interestingly, the organogel OPZ could sense iodide ions (I-) in the gel-gel state with high selectivity and sensitivity. The detection limit of OPZ for I- is 9.4 × 10-8 M, indicating high sensitivity to I-. Furthermore, a thin film based on OPZ was prepared, which could be used as a smart material for the detection of I- as well as a fluorescent security display material.
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Affiliation(s)
- Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
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Liao P, Fang H, Zhang J, Hu Y, Chen L, Su C. Transforming HKUST‐1 Metal–Organic Frameworks into Gels – Stimuli‐Responsiveness and Morphology Evolution. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700048] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peisen Liao
- Lehn Institute of Functional Materials MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun Yat‐Sen University 510275 Guangzhou China
| | - Haobin Fang
- Lehn Institute of Functional Materials MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun Yat‐Sen University 510275 Guangzhou China
| | - Jianyong Zhang
- Lehn Institute of Functional Materials MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun Yat‐Sen University 510275 Guangzhou China
| | - Ya Hu
- Lehn Institute of Functional Materials MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun Yat‐Sen University 510275 Guangzhou China
| | - Liuping Chen
- Lehn Institute of Functional Materials MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun Yat‐Sen University 510275 Guangzhou China
| | - Cheng‐Yong Su
- Lehn Institute of Functional Materials MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun Yat‐Sen University 510275 Guangzhou China
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Taylor MJ, Tomlins P, Sahota TS. Thermoresponsive Gels. Gels 2017; 3:E4. [PMID: 30920501 PMCID: PMC6318636 DOI: 10.3390/gels3010004] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/14/2016] [Accepted: 12/16/2016] [Indexed: 01/08/2023] Open
Abstract
Thermoresponsive gelling materials constructed from natural and synthetic polymers can be used to provide triggered action and therefore customised products such as drug delivery and regenerative medicine types as well as for other industries. Some materials give Arrhenius-type viscosity changes based on coil to globule transitions. Others produce more counterintuitive responses to temperature change because of agglomeration induced by enthalpic or entropic drivers. Extensive covalent crosslinking superimposes complexity of response and the upper and lower critical solution temperatures can translate to critical volume temperatures for these swellable but insoluble gels. Their structure and volume response confer advantages for actuation though they lack robustness. Dynamic covalent bonding has created an intermediate category where shape moulding and self-healing variants are useful for several platforms. Developing synthesis methodology-for example, Reversible Addition Fragmentation chain Transfer (RAFT) and Atomic Transfer Radical Polymerisation (ATRP)-provides an almost infinite range of materials that can be used for many of these gelling systems. For those that self-assemble into micelle systems that can gel, the upper and lower critical solution temperatures (UCST and LCST) are analogous to those for simpler dispersible polymers. However, the tuned hydrophobic-hydrophilic balance plus the introduction of additional pH-sensitivity and, for instance, thermochromic response, open the potential for coupled mechanisms to create complex drug targeting effects at the cellular level.
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Affiliation(s)
- M Joan Taylor
- INsmart group, School of Pharmacy Faculty of Health & Life Sciences, De Montfort University, Leicester, LE1 9BH, UK.
| | - Paul Tomlins
- INsmart group, School of Pharmacy Faculty of Health & Life Sciences, De Montfort University, Leicester, LE1 9BH, UK.
| | - Tarsem S Sahota
- INsmart group, School of Pharmacy Faculty of Health & Life Sciences, De Montfort University, Leicester, LE1 9BH, UK.
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