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Zhang Y, Zhao G, Han K, Sun D, Zhou N, Song Z, Liu H, Li J, Li G. Applications of Molecular Imprinting Technology in the Study of Traditional Chinese Medicine. Molecules 2022; 28:301. [PMID: 36615491 PMCID: PMC9822276 DOI: 10.3390/molecules28010301] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 01/01/2023] Open
Abstract
Traditional Chinese medicine (TCM) is one of the most internationally competitive industries. In the context of TCM modernization and internationalization, TCM-related research studies have entered a fast track of development. At the same time, research of TCM is also faced with challenges, such as matrix complexity, component diversity and low level of active components. As an interdisciplinary technology, molecular imprinting technology (MIT) has gained popularity in TCM study, owing to the produced molecularly imprinted polymers (MIPs) possessing the unique features of structure predictability, recognition specificity and application universality, as well as physical robustness, thermal stability, low cost and easy preparation. Herein, we comprehensively review the recent advances of MIT for TCM studies since 2017, focusing on two main aspects including extraction/separation and purification and detection of active components, and identification analysis of hazardous components. The fundamentals of MIT are briefly outlined and emerging preparation techniques for MIPs applied in TCM are highlighted, such as surface imprinting, nanoimprinting and multitemplate and multifunctional monomer imprinting. Then, applications of MIPs in common active components research including flavonoids, alkaloids, terpenoids, glycosides and polyphenols, etc. are respectively summarized, followed by screening and enantioseparation. Related identification detection of hazardous components from TCM itself, illegal addition, or pollution residues (e.g., heavy metals, pesticides) are discussed. Moreover, the applications of MIT in new formulation of TCM, chiral drug resolution and detection of growing environment are summarized. Finally, we propose some issues still to be solved and future research directions to be expected of MIT for TCM studies.
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Affiliation(s)
- Yue Zhang
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai 264005, China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Guangli Zhao
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai 264005, China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Kaiying Han
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai 264005, China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Dani Sun
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Na Zhou
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Zhihua Song
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai 264005, China
| | - Huitao Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Guisheng Li
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai 264005, China
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Song Z, Li J, Lu W, Li B, Yang G, Bi Y, Arabi M, Wang X, Ma J, Chen L. Molecularly imprinted polymers based materials and their applications in chromatographic and electrophoretic separations. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116504] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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WEI Q, CHEN X, BAI L, ZHAO L, HUANG Y, LIU Z. [Preparation of liquid crystal-based molecularly imprinted monolith and its molecular recognition thermodynamics]. Se Pu 2021; 39:1171-1181. [PMID: 34677012 PMCID: PMC9404140 DOI: 10.3724/sp.j.1123.2021.01017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Indexed: 12/05/2022] Open
Abstract
Molecularly imprinted polymers (MIPs) incorporated with liquid crystalline monomers can imprint and recognize templates at a very low level of crosslinking, thus addressing challenges associated with conventional MIPs, such as the embedding of the imprinted sites, low binding capacity, and slow mass transfer due to the high degree of crosslinking. Compared with traditional MIPs, the prepared MIPs have a greater number of easily binding sites, which can effectively overcome the embedding and low utilization of imprinting sites. Simultaneously, with a decrease in the level of chemical crosslinking, the mass transfer of template molecules can be significantly improved. However, the imprinting effect of liquid crystalline MIPs is generally weaker than that of traditional MIPs due to the low degree of crosslinking. Therefore, to obtain liquid crystalline MIPs with a good imprinting effect, a series of low-crosslinked liquid crystalline molecularly imprinted monoliths were prepared by graft polymerization and evaluated by high performance liquid chromatography (HPLC) to systematically determine the relation between the polymerization parameters and the affinity of the resulting liquid crystalline MIPs. In this experiment, trimethylolpropane trimethacrylate (TRIM) was used to synthesize a monolithic column skeleton with toluene and dodecyl alcohol as porogens. (S)-Naproxen was used as a template and liquid crystalline monomer 4-(4-cyanophenyl)-cyclohexyl ethylene (CPCE) was added for grafting to synthesize the liquid crystalline MIP monolith. The influence of the acetonitrile content and pH in the mobile phase on the chromatographic retention of the template molecule was investigated. The results showed that the main force of MIP recognizing naproxen changed from hydrogen bonding to hydrophobic interaction by the addition of the liquid crystalline monomer. Frontal analysis and adsorption isotherm fitting, including Langmuir, Freundlich, and Scatchard fitting, showed that when the crosslinking degree was 15%, the liquid crystalline MIPs exhibited the highest imprinting factor and heterogeneity, and the specific adsorption was stronger than non-specific adsorption. By analyzing the stoichiometric displacement model, the total affinity of the MIP monoliths for the template molecules (ln A) was determined to be 0.645, significantly higher than that of its analogues, indicating that the liquid crystalline imprinted monolith had a higher total affinity for the template molecule. The spatial matching degree (nβ) of the template molecule to the cavity structures of MIPs was also very high, and only inferior to that of ketoprofen. Nevertheless, the ln A value of ketoprofen was only 0.242, which indicated that the spatial effect was not the key factor in determining the recognition ability of liquid crystalline imprinting systems. An analysis of the separation thermodynamics revealed that the separation of the liquid crystalline MIPs was an entropy-controlled process, while that of conventional liquid crystalline-free MIPs was an enthalpy-controlled process. Based on the above results, the addition of a liquid crystalline monomer may alter the recognition mechanism of MIPs, and an appropriately low crosslinking degree can significantly improve the recognition performance of liquid crystalline MIPs, paving the way for a new generation of MIPs.
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Affiliation(s)
- Qin WEI
- 天津医科大学药学院, 天津市临床药物关键技术重点实验室, 天津 300070
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Xiuxiu CHEN
- 天津医科大学药学院, 天津市临床药物关键技术重点实验室, 天津 300070
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Lihong BAI
- 天津医科大学药学院, 天津市临床药物关键技术重点实验室, 天津 300070
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Liang ZHAO
- 天津医科大学药学院, 天津市临床药物关键技术重点实验室, 天津 300070
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Yanping HUANG
- 天津医科大学药学院, 天津市临床药物关键技术重点实验室, 天津 300070
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Zhaosheng LIU
- 天津医科大学药学院, 天津市临床药物关键技术重点实验室, 天津 300070
- Tianjin Key Laboratory of Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
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Tan N, Chen C, Ji K, Liao S, Liu Y, Hu L, He L, Ding Z. Preparation and Properties of Hollow Magnetic Liquid Crystal Molecularly Imprinted Polymers as Silybin Sustained‐release Carriers. ChemistrySelect 2021. [DOI: 10.1002/slct.202101786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ni Tan
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
| | - Can Chen
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
| | - Kang Ji
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
| | - Sen Liao
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
| | - Yaqing Liu
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
| | - Lin Hu
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
| | - Leqing He
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
| | - Zui Ding
- School of Chemistry and Chemical Engineering University of South China 28 Hengqi Road Hengyang Hunan 421001 China
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Zhang LP, Wei ZH, He SN, Huang YP, Liu ZS. Preparation, characterization, and application of soluble liquid crystalline molecularly imprinted polymer in electrochemical sensor. Anal Bioanal Chem 2020; 412:7321-7332. [PMID: 32785773 DOI: 10.1007/s00216-020-02866-4] [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: 06/04/2020] [Revised: 07/27/2020] [Accepted: 08/05/2020] [Indexed: 11/28/2022]
Abstract
A novel soluble molecularly imprinted polymer (SMIP) without chemical cross-linker was successfully synthesized. The quinine (QN), which the structure was similar to the template, was chosen as the immobile template to improve the affinity of MIP. 4-Methyl phenyl dicyclohexyl ethylene (MPDE) was used as the liquid crystal (LC) monomer to increase the rigid of the composite. The cooperative effect of QN and MPDE was demonstrated by comparing with the conventional MIP, which synthesized without QN and MPDE. The polymerization conditions of SMIP including the ratio of MAA to MPDE, template to functional monomer, and HQN to QN were also optimized. Moreover, the characterizations of the SMIP were investigated by the transmission electron microscopy (TEM), field emission scanning electron microscopy (SEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and nitrogen adsorption. In binding behavior, the SMIP presented the maximum adsorption capacity (0.37 ± 0.06 mmol/g) and imprinting factor (3.44 ± 0.25). And above all, the obtained polymer exhibited the solubility in the organic solution. In addition, the proposed SMIP as the electrochemical sensor exhibited a significant conductivity and sensitivity with the detection limit of 0.33 μM for HQN, the recoveries for the sample analysis varied from 97.4 to 100.8%, and the intra-day precision and inter-day precision were within 5.5% and 12.5%, respectively. It turned out that the SMIP had demonstrated more excellent potential than the traditional insoluble MIP in the development of the membrane-based electrochemical sensors.Graphical abstract.
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Affiliation(s)
- Li-Ping Zhang
- School of Basic Medical Sciences, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Ze-Hui Wei
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Su-Na He
- School of Basic Medical Sciences, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Yan-Ping Huang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China.
| | - Zhao-Sheng Liu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China.
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Yang J, Zhang X, Mijiti Y, Sun Y, Jia M, Liu Z, Huang Y, Aisa HA. Improving performance of molecularly imprinted polymers prepared with template of low purity utilizing the strategy of macromolecular crowding. J Chromatogr A 2020; 1624:461155. [DOI: 10.1016/j.chroma.2020.461155] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/10/2020] [Accepted: 04/21/2020] [Indexed: 01/24/2023]
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Feng J, Li F, Ran RX, Huang YP, Liu ZS. Synergistic effect of metal ions pivot and macromolecular crowding reagents on affinity of molecularly imprinted polymer. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Fouad A, Ibrahim D, Adly FG, Ghanem A. An insight into chiral monolithic stationary phases for enantioselective high-performance liquid chromatography applications. J Sep Sci 2019; 42:2303-2340. [PMID: 31050176 DOI: 10.1002/jssc.201900159] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/17/2019] [Accepted: 04/17/2019] [Indexed: 02/02/2023]
Abstract
In this review, three main classes of chiral monolithic stationary phases, namely silica-, organic polymer-, and hybrid-based monolithic stationary phases, are covered. Their preparations, applications, and advantages compared with the conventional-packed and open-tubular capillary columns are discussed. A detailed description of the different types and techniques used for the introduction of chiral selectors into the monolithic matrices such as immobilization, functionalization, coating, encapsulation, and bonding. Special emphasis is given to the recent developments of chiral selectors in HPLC monolithic stationary phases during the past 18 years.
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Affiliation(s)
- Ali Fouad
- Chirality Program, School of Science, Faculty of Science and Technology, University of Canberra, ACT, Australia.,Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Diana Ibrahim
- Chirality Program, School of Science, Faculty of Science and Technology, University of Canberra, ACT, Australia
| | - Frady G Adly
- Chirality Program, School of Science, Faculty of Science and Technology, University of Canberra, ACT, Australia
| | - Ashraf Ghanem
- Chirality Program, School of Science, Faculty of Science and Technology, University of Canberra, ACT, Australia
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Mo CE, Chai MH, Zhang LP, Ran RX, Huang YP, Liu ZS. Floating molecularly imprinted polymers based on liquid crystalline and polyhedral oligomeric silsesquioxanes for capecitabine sustained release. Int J Pharm 2018; 557:293-303. [PMID: 30599225 DOI: 10.1016/j.ijpharm.2018.12.070] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/26/2018] [Accepted: 12/13/2018] [Indexed: 01/16/2023]
Abstract
Molecularly imprinted polymers (MIPs) have drawn extensive attention as carriers on drug delivery. However, most of MIPs suffer from insufficient drug loading capacity, burst release of drugs and/or low bioavailability. To solve the issues, this study designed an imprinted material with superior floating nature for oral drug delivery system of capecitabine (CAP) rationally. The MIPs was synthesized in the presence of 4-methylphenyl dicyclohexyl ethylene (liquid crystalline, LC) and polyhedral oligomeric silsesquioxanes (POSS) via polymerization reaction. The LC-POSS MIPs had extended release of the template molecules over 13.4 h with entrapment efficiency of 20.53%, diffusion coefficient of 2.83 × 10-11 cm2 s-1, and diffusion exponent of 0.84. Pharmacokinetic studies further revealed the prolong release and high relative bioavailability of CAP in vivo of rats, showing the effective floating effect of the LC-POSS MIPs. The in vivo images revealed visually that the gastroretentive time of the LC-POSS MIPs was longer than non-LC-POSS imprinted polymers. The physical characteristics of the polymers were also characterized by nitrogen adsorption experiment, scanning electron microscopy, thermogravimetric analysis and differential scanning calorimetry analysis. As a conclusion, the LC-POSS MIPs can be used as an eligible CAP carrier and might hold great potential in clinical applications for sustained release drug.
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Affiliation(s)
- Chun-E Mo
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Mei-Hong Chai
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Li-Ping Zhang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Rui-Xue Ran
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Yan-Ping Huang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
| | - Zhao-Sheng Liu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
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Hata Y, Sawada T, Serizawa T. Macromolecular crowding for materials-directed controlled self-assembly. J Mater Chem B 2018; 6:6344-6359. [PMID: 32254643 DOI: 10.1039/c8tb02201a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Macromolecular crowding refers to intracellular environments where various macromolecules, including proteins and nucleic acids, are present at high total concentrations. Its influence on biological processes has been investigated using a highly concentrated in vitro solution of water-soluble polymers as a model. Studies have revealed significant effects of macromolecular crowding on the thermodynamic equilibria and dynamics of biomolecular self-assembly in vivo. Recently, macromolecular crowding has attracted materials scientists, especially those in bio-related areas, as a tool to control molecular/colloidal self-assembly. Macromolecular crowding has been exploited to control the structure of supramolecular materials, assemble nanomaterials, and improve the performance of polymeric materials. Furthermore, nanostructured materials have been shown to be an interesting alternative to water-soluble polymers for creating crowded environments for controlled self-assembly. In this review article, we summarize recent progress in research on macromolecular crowding for controlled self-assembly in bio-related materials chemistry.
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Affiliation(s)
- Yuuki Hata
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H121 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
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Floating liquid crystalline molecularly imprinted polymer coated carbon nanotubes for levofloxacin delivery. Eur J Pharm Biopharm 2018; 127:150-158. [PMID: 29438726 DOI: 10.1016/j.ejpb.2018.02.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 12/07/2017] [Accepted: 02/07/2018] [Indexed: 01/12/2023]
Abstract
Liquid crystalline molecularly imprinted polymers (LC-MIPs) were low cross-linking MIPs (5-20 mol%) by introducing a LC monomer into the MIP polymerization system to keep the shape of the imprinted cavities due to additional interactions between the mesogenic groups. The multiwalled carbon nanotubes (MWCNTs) coated LC-MIP (MWCNT@LC-MIP) was the first fabricated as a novel floating interaction-controlled DDS. The synthesis was achieved by adding 9-vinylanthracene to obtain the high-density vinyl group functionalized MWCNTs firstly, and then polymerization of LC MIPs was performed on the surface of MWCNTs using a mixture of methacrylic acid, ethylene glycol dimethacrylate, and 4-methyl phenyl dicyclohexyl ethylene (LC monomer) with levofloxacin (LVF) as model template drug. Both template/functional monomer ratio and levels of crosslinker were optimized to obtain the best imprinting factor. Characterizations of polymer were investigated by the transmission electron microscope, nitrogen adsorption, thermogravimetric analysis, Fourier transform infrared spectra and floating behavior studies. The imprinting effect was confirmed by the adsorption isotherms, adsorption kinetics and effect of selectivity. In vitro release studies were examined by the LVF-loaded MWCNT@LC-MIP and the control samples, MWCNT@LC-NIP, MWCNT@MIP, MWCNT@NIP and the bare MWCNT using acetonitrile as the dissolute medium. The release profiles showed an obvious zero-order release of LVF from MWCNT@LC-MIP, which exhibited 3.8 μg/h of the release rate with duration of about 20 h. In vivo pharmacokinetic study displayed the relative bioavailability of the gastro-floating MWCNT@LC-MIP was 578.9%, whereas only 58.0% of MWCNT@MIP and 11.7% of the bared MWCNT. As a conclusion, MWCNT@LC-MIP showed potentials for oral administration by the innovative combination of floating and controlled release properties.
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Zhang LP, Tang SH, Mo CE, Wang C, Huang YP, Liu ZS. Synergistic effect of liquid crystal and polyhedral oligomeric silsesquioxane to prepare molecularly imprinted polymer for paclitaxel delivery. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2017.11.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Jia M, Yang J, Zhao YX, Liu ZS, Aisa HA. A strategy of improving the imprinting effect of molecularly imprinted polymer: Effect of heterogeneous macromolecule crowding. Talanta 2017; 175:488-494. [DOI: 10.1016/j.talanta.2017.07.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/19/2017] [Accepted: 07/24/2017] [Indexed: 11/29/2022]
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Benny P, Raghunath M. Making microenvironments: A look into incorporating macromolecular crowding into in vitro experiments, to generate biomimetic microenvironments which are capable of directing cell function for tissue engineering applications. J Tissue Eng 2017; 8:2041731417730467. [PMID: 29051808 PMCID: PMC5638150 DOI: 10.1177/2041731417730467] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 08/09/2017] [Indexed: 01/07/2023] Open
Abstract
Biomimetic microenvironments are key components to successful cell culture and tissue engineering in vitro. One of the most accurate biomimetic microenvironments is that made by the cells themselves. Cell-made microenvironments are most similar to the in vivo state as they are cell-specific and produced by the actual cells which reside in that specific microenvironment. However, cell-made microenvironments have been challenging to re-create in vitro due to the lack of extracellular matrix composition, volume and complexity which are required. By applying macromolecular crowding to current cell culture protocols, cell-made microenvironments, or cell-derived matrices, can be generated at significant rates in vitro. In this review, we will examine the causes and effects of macromolecular crowding and how it has been applied in several in vitro systems including tissue engineering.
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Affiliation(s)
- Paula Benny
- Department of Biochemistry, National University of Singapore, Singapore
| | - Michael Raghunath
- Department of Biochemistry, National University of Singapore, Singapore.,Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Wädenswil, Switzerland
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Zhang LP, Wang XL, Pang QQ, Huang YP, Tang L, Chen M, Liu ZS. Solvent-responsive floating liquid crystalline-molecularly imprinted polymers for gastroretentive controlled drug release system. Int J Pharm 2017; 532:365-373. [DOI: 10.1016/j.ijpharm.2017.09.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 08/18/2017] [Accepted: 09/04/2017] [Indexed: 11/30/2022]
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Fouad A, Ghanem A. Immobilized Chiral Selectors on Monolithic High-Performance Liquid Chromatography Columns. ADVANCES IN CHROMATOGRAPHY 2017. [DOI: 10.1201/9781315116372-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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18
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Wang XH, Dong Q, Ying LL, Chi SS, Lan YH, Huang YP, Liu ZS. Enhancement of selective separation on molecularly imprinted monolith by molecular crowding agent. Anal Bioanal Chem 2016; 409:201-211. [DOI: 10.1007/s00216-016-9986-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/30/2016] [Accepted: 09/27/2016] [Indexed: 10/25/2022]
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Geng B, Guo LX, Lin BP, Keller P, Zhang XQ, Sun Y, Yang H. Side chain liquid crystalline polymers with an optically active polynorbornene backbone and achiral mesogenic side groups. Polym Chem 2015. [DOI: 10.1039/c5py00651a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work describes a series of side-on and end-on SCLCPs with an optically active polynorbornene main chain and achiral mesogens. The side-on SCLCPs tend to form achiral mesophases, while their comparative end-on analogues exhibit chiral mesophases.
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Affiliation(s)
- Bin Geng
- School of Chemistry and Chemical Engineering
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
- Southeast University
- Nanjing 211189
| | - Ling-Xiang Guo
- School of Chemistry and Chemical Engineering
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
- Southeast University
- Nanjing 211189
| | - Bao-Ping Lin
- School of Chemistry and Chemical Engineering
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
- Southeast University
- Nanjing 211189
| | - Patrick Keller
- Institut Curie
- PSL Research University
- CNRS UMR 168
- Université Pierre et Marie Curie
- 75248 Paris Cedex 05
| | - Xue-Qin Zhang
- School of Chemistry and Chemical Engineering
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
- Southeast University
- Nanjing 211189
| | - Ying Sun
- School of Chemistry and Chemical Engineering
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
- Southeast University
- Nanjing 211189
| | - Hong Yang
- School of Chemistry and Chemical Engineering
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research
- Jiangsu Optoelectronic Functional Materials and Engineering Laboratory
- Southeast University
- Nanjing 211189
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