1
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Zhao C, Wang Y, Li M, Wang L, Lou S, Shi B, Rao Y, Yan W, Yang H. A co-assembly process for high strength and injectable dual network gels with sustained doxorubicin release performance. SOFT MATTER 2024; 20:5788-5799. [PMID: 38984641 DOI: 10.1039/d3sm01763j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Adopting a non-covalent co-assembly strategy shows great potential in loading drugs efficiently and safely in drug delivery systems. However, finding an efficient method for developing high strength gels with thixotropic characteristics is still challenging. In this work, by hybridizing the low molecular weight gelator fluorenylmethyloxycarbonyl-phenylalanine (Fmoc-F) (first single network, 1st SN) and alginate (second single network, 2nd SN) into a dual network (DN) gel, gels with high strength as well as thixotropy were prepared efficiently. The DN gels showed high strength (103 Pa in SN gels and 105 Pa in DN gels) and thixotropic characteristics (yield strain <25%; recovery ratio >85% within 100 seconds). The application performance was verified by loading doxorubicin (DOX), showing better encapsulation capacity (77.06% in 1st SN, 59.11% in 2nd SN and 96.71% in DN) and sustained release performance (lasting one week under physiological conditions) than single network gels. Experimental and DFT results allowed the elaboration of the specific non-covalent co-assembly mechanism for DN gel formation and DOX loading. The DN gels were formed by co-assembly driven by H-bond and π-π stacking interactions and then strengthened by Ca2+-coupling. Most DOX molecules co-assembled with Fmoc-F and alginate through π-π stacking and H-bond interactions (DOX-I), with a few free DOX molecules (DOX-II) left. Proven by the release dynamics test, DOX was released through a diffusion-erosion process, in an order of DOX-I first and then DOX-II. This work suggests that non-covalent co-assembly is a useful technique for effective material strengthening and drug delivery.
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Affiliation(s)
- Chengcheng Zhao
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
- Shaanxi Provincial Key Laboratory of Bioelectromagnetic Detection and Intelligent Perception, School of Biomedical Engineering, Air Force Medical University, Xi'an 710032, P. R. China
| | - Yanyao Wang
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Mingtao Li
- State Key Laboratory of Multiphase Flow in Power Engineering, Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lin Wang
- First Affiliate Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shuwen Lou
- Hangzhou Entel Foreign Language School, Hangzhou 311122, China
| | - Bofang Shi
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Yongfang Rao
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
- State Key Laboratory of Multiphase Flow in Power Engineering, Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wei Yan
- State Key Laboratory of Multiphase Flow in Power Engineering, Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Honghui Yang
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
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2
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Patel DK, Jung E, Won SY, Priya S, Han SS. Nanocellulose-assisted mechanically tough hydrogel platforms for sustained drug delivery. Int J Biol Macromol 2024; 271:132374. [PMID: 38754669 DOI: 10.1016/j.ijbiomac.2024.132374] [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: 11/24/2023] [Revised: 04/22/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
The controlled delivery of the desired bioactive molecules is required to achieve the maximum therapeutic effects with minimum side effects. Biopolymer-based hydrogels are ideal platforms for delivering the desired molecules owing to their superior biocompatibility, biodegradability, and low-immune response. However, the prolonged delivery of the drugs through biopolymer-based hydrogels is restricted due to their weak mechanical stability. We developed mechanically tough and biocompatible hydrogels to address these limitations using carboxymethyl chitosan, sodium alginate, and nanocellulose for sustained drug delivery. The hydrogels were cross-linked through calcium ions to enhance their mechanical strength. Nanocellulose-added hydrogels exhibited improved mechanical strength (Young's modulus; 23.36 → 30.7 kPa, Toughness; 1.39 → 5.65 MJm-3) than pure hydrogels. The composite hydrogels demonstrated increased recovery potential (66.9 → 84.5 %) due to the rapid reformation of damaged polymeric networks. The hydrogels were stable in an aqueous medium and demonstrated reduced swelling potential. The hydrogels have no adverse effects on embryonic murine fibroblast (3 T3), showing their biocompatibility. No bacterial growth was observed in hydrogels-treated groups, indicating their antibacterial characteristics. The sustained drug released was observed from nanocellulose-assisted hydrogel scaffolds compared to the pure polymer hydrogel scaffold. Thus, hydrogels have potential and could be used as a sustained drug carrier.
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Affiliation(s)
- Dinesh K Patel
- School of Chemical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - Eunseo Jung
- School of Chemical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - So-Yeon Won
- School of Chemical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - Sahariya Priya
- School of Chemical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea.
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3
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Ginesi RE, Draper ER. Methods of changing low molecular weight gel properties through gelation kinetics. SOFT MATTER 2024; 20:3887-3896. [PMID: 38691131 DOI: 10.1039/d4sm00238e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Low molecular weight gels continue to attract notable interest, with many potential applications. However, there are still significant gaps in our understanding of these systems and the correlation between the pre-gel and final gel states. The kinetics of the gelation process plays a crucial role in the bulk properties of the hydrogel and presents an opportunity to fine-tune these systems to meet the requirements of the chosen application. Therefore, it is possible to use a single gelator for multiple applications. This review discusses four ways to modify the pre-gelled structures before triggering gelation. Such modifications can enhance the material's intended performance, which may result in significant advancements in high-tech areas, such as drug delivery, cell culturing, electronics, and tissue engineering.
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Affiliation(s)
- Rebecca E Ginesi
- School of Chemistry, University of Glasgow, Glasgow, UK, G12 8QQ, UK.
| | - Emily R Draper
- School of Chemistry, University of Glasgow, Glasgow, UK, G12 8QQ, UK.
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4
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Gudmundsson TA, Kuppadakkath G, Ghosh D, Ruether M, Seddon A, Ginesi RE, Doutch J, Adams DJ, Gunnlaugsson T, Damodaran KK. Nanoscale assembly of enantiomeric supramolecular gels driven by the nature of solvents. NANOSCALE 2024; 16:8922-8930. [PMID: 38591601 DOI: 10.1039/d4nr00204k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Understanding the key parameters that control the self-assembly process is critical to predict self-assembly modes in multi-component systems, which will lead to the development of nanofibrous materials with tuneable properties. Enantiomeric amino acid-based low-molecular-weight gelators (LMWGs) were mixed in polar (polar protic) and aromatic apolar (aromatic) solvents and compared to their individual counterparts to probe the effect of solvent polarity on the self-assembly process. Scanning electron microscopy (SEM) reveals that xerogels of individual components display hollow needles in polar protic solvents, while chiral coils are observed in aromatic solvents. In contrast, the multi-component gel displays hollow needle morphologies in both solvents, indicating similar morphologies in polar protic solvents but an entirely different nanostructure for the individual gel networks in aromatic solvents. PXRD experiments performed on the dried gels showed that the nature of the solvents plays a vital role in the co-assembly process of multi-component gels. The self-assembly modes and the gel state structure of the gels are analysed by wide-angle X-ray diffraction (WAXS) and small-angle neutron diffraction (SANS), which reveals that the mixed gel undergoes different co-assembly modes depending on the nature of the solvent systems. This study shows that different co-assembly modes can be achieved for structurally similar components by varying the solvent polarity, demonstrating the importance of solvent choice in the self-assembly process of multi-component gels.
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Affiliation(s)
- Tómas A Gudmundsson
- Department of Chemistry, Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland.
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) and Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, The University of Dublin, Dublin 2, D02 PN40, Ireland
| | - Geethanjali Kuppadakkath
- Department of Chemistry, Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland.
| | - Dipankar Ghosh
- Department of Chemistry, Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland.
| | - Manuel Ruether
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) and Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, The University of Dublin, Dublin 2, D02 PN40, Ireland
| | - Annela Seddon
- School of Physics, HH Wills Physics Laboratory, Tyndall Avenue, University of Bristol, Bristol, BS8 1TL, UK
| | - Rebecca E Ginesi
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
| | - James Doutch
- ISIS Pulsed Neutron and Muon Source, Harwell Science and Innovation Campus, Didcot, OX11 0QX, UK
| | - Dave J Adams
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI) and Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, The University of Dublin, Dublin 2, D02 PN40, Ireland
| | - Krishna K Damodaran
- Department of Chemistry, Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland.
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5
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Hazra N, Gayen K, Ghosh P, Hansda B, Banerjee A. Stabilization of a Photoradiated Naphthalene Diimide-Based Organic Radical Anion Inside a Peptide-Based Gel Matrix with an Improvement of Optoelectronic Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9462-9470. [PMID: 38652709 DOI: 10.1021/acs.langmuir.3c03947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
An amino acid-conjugated naphthalene diimide (NDI)-based highly red fluorescent radical anion has been found in a water medium under the photoradiated condition. This molecule has failed to form the radical anion in the monomeric state; however, the J aggregation in the aqueous medium has ensured the formation of radical anion in the ambient condition after the irradiation of both sunlight and UV light exposure. Electron paramagnetic resonance (EPR) studies clearly suggest the formation of radical anions. Herein, the stability of the radical anion in the aqueous medium is only a few minutes as a small amount of shaking is enough to quench the radical anion in the solution state. Furthermore, the incorporation of this molecule into a peptide-based hydrogel matrix and the consequent photoirradiation have not only helped to develop radical anion in the gel matrix but also increased the enormous stability of the radical anion inside the hydrogel matrix even for 30 days. It is envisaged that the formation of the radical anion within the gel matrix prevents the free movement of the NDI molecules and restricts the diffusion of molecular oxygen in the system, which leads to the stability of the radical anions in the gel. Moreover, the stability of the radical anion within the gel has helped to enhance the conductivity of the hybrid gel to a great extent. Interestingly, the radical anion-containing hybrid hydrogel has shown a potential photoswitching property.
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Affiliation(s)
- Niladri Hazra
- School of Biological Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kousik Gayen
- School of Biological Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Purnadas Ghosh
- School of Biological Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Biswanath Hansda
- School of Biological Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Arindam Banerjee
- School of Biological Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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6
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Linville JJ, Mason ML, Lopez-Torres EU, Parquette JR. Electrostatic assembly of a multicomponent peptide/amphiphile nanotube. NANOSCALE 2024; 16:2894-2903. [PMID: 37990928 DOI: 10.1039/d3nr03482h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
The ability to integrate the elements of a multicomponent nanostructure with nanoscale precision by co-assembly provides a versatile strategy to create novel materials with tunable properties. The search for function in these materials will require new strategies to be developed that control the assembly process, especially for structurally dissimilar components, which often have a propensity to self-sort into non-integrated nanostructures. In this work, two components, a peptide (1) and an amphiphile (2), were integratively co-assembled into a multicomponent nanotube. The interaction between the two components at the supramolecular level was driven by the electrostatic complementarity of the components, which was controlled by the pH-dependent charge of 1. Characterization of the co-assembled nanotube, 1-2NT, was achieved using a combination of TEM, AFM, CLSM and SIM techniques, which showed that both components were colocalized within the nanotube. These studies, in conjunction with CD, IR and fluorescence studies, suggested that 1 and 2 were arranged in partially reorganized, self-sorted domains, which were integrated as laminated nanoribbons that coiled together into the final co-assembled nanotube.
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Affiliation(s)
- Jenae J Linville
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave., Columbus, Ohio 43210, USA.
| | - McKensie L Mason
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave., Columbus, Ohio 43210, USA.
| | - Edgar U Lopez-Torres
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave., Columbus, Ohio 43210, USA.
| | - Jon R Parquette
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave., Columbus, Ohio 43210, USA.
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7
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He W, Zhang Y, Qu Y, Liu M, Li G, Pan L, Xu X, Shi G, Hao Q, Liu F, Gao Y. Research progress on hydrogel-based drug therapy in melanoma immunotherapy. BMB Rep 2024; 57:71-78. [PMID: 38053295 PMCID: PMC10910090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/04/2023] [Accepted: 11/15/2023] [Indexed: 12/07/2023] Open
Abstract
Melanoma is one of the most aggressive skin tumors, and conventional treatment modalities are not effective in treating advanced melanoma. Although immunotherapy is an effective treatment for melanoma, it has disadvantages, such as a poor response rate and serious systemic immune-related toxic side effects. The main solution to this problem is the use of biological materials such as hydrogels to reduce these side effects and amplify the immune killing effect against tumor cells. Hydrogels have great advantages as local slow-release drug carriers, including the ability to deliver antitumor drugs directly to the tumor site, enhance the local drug concentration in tumor tissue, reduce systemic drug distribution and exhibit good degradability. Despite these advantages, there has been limited research on the application of hydrogels in melanoma treatment. Therefore, this article provides a comprehensive review of the potential application of hydrogels in melanoma immunotherapy. Hydrogels can serve as carriers for sustained drug delivery, enabling the targeted and localized delivery of drugs with minimal systemic side effects. This approach has the potential to improve the efficacy of immunotherapy for melanoma. Thus, the use of hydrogels as drug delivery vehicles for melanoma immunotherapy has great potential and warrants further exploration. [BMB Reports 2024; 57(2): 71-78].
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Affiliation(s)
- Wei He
- College of Life Science, Northwest University, Xi’an 710069, China
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
| | - Yanqin Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Air Force Military Medical University, Xi’an 710032, China
| | - Yi Qu
- Department of Xi’an Shunmei Medical Cosmetology Outpatient, Xi’an 710075, China
| | - Mengmeng Liu
- College of Life Science, Northwest University, Xi’an 710069, China
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
| | - Guodong Li
- College of Life Science, Northwest University, Xi’an 710069, China
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
| | - Luxiang Pan
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
| | - Xinyao Xu
- College of Life Science, Northwest University, Xi’an 710069, China
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
| | - Gege Shi
- College of Life Science, Northwest University, Xi’an 710069, China
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
| | - Qiang Hao
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
| | - Fen Liu
- Department of Periodontology, Shenzhen Stomatological Hospital (Pingshan), Southern Medical University, Shenzhen 510515, China
| | - Yuan Gao
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, Xi’an 710032, China
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8
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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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9
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Hansda B, Mondal B, Hazra S, Das KS, Castelletto V, Hamley IW, Banerjee A. Effect of molar ratio and concentration on the rheological properties of two-component supramolecular hydrogels: tuning of the morphological and drug releasing behaviour. SOFT MATTER 2023; 19:8264-8273. [PMID: 37869972 DOI: 10.1039/d3sm00883e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Self-assembled supramolecular hydrogels offer great potential as biomaterials and drug delivery systems. Specifically, peptide-based multicomponent hydrogels are promising materials due to their advantage that their mechanical and physical properties can be tuned to enhance their functionalities and broaden their applications. Herein, we report two-component assembly and formation of hydrogels containing inexpensive complementary anionic, BUVV-OH (A), and cationic, KFFC12 (B), peptide amphiphiles. Individually, neither of these components formed a hydrogel, while mixtures with compositions 1 : 1, 1 : 2, and 2 : 1 (molar ratio) as A : B show hydrogel formation (Milli-Q water, at pH = 6.79). These hydrogels displayed a good shear-thinning behaviour with different mechanical stabilities and nano-fibrous network structures. The 1 : 1 hydrogel shows good cell viability for human embryonic kidney (HEK-293) cells and CHO cells indicating its non-cytotoxicity. The biocompatible, thixotropic 1 : 1 hydrogel with a nanofiber network structure shows the highest mechanical strength with a storage modulus of 3.4 × 103 Pa. The hydrogel is able to encapsulate drugs including antibiotics amoxicillin and rifampicin, and anticancer drug doxorubicin, and it exhibits sustainable release of 76%, 70%, and 81% respectively in vitro after 3 days. The other two mixtures (composition 1 : 2 and 2 : 1) are unable to form a hydrogel when they are loaded with these drugs. Interestingly, it is noticed that with an increase in concentration, the mechanical strength of a 1 : 1 hydrogel is significantly enhanced, showing potential that may act as a scaffold for tissue engineering. The two-component gel offers tunable mechanical properties, thixotropy, injectability, and biocompatibility and has great potential as a scaffold for sustained drug release and tissue engineering.
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Affiliation(s)
- Biswanath Hansda
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
| | - Biplab Mondal
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
| | - Soumyajit Hazra
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
| | - Krishna Sundar Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | | | - Ian W Hamley
- Department of Chemistry, University of Reading, Reading RG6 6AD, UK
| | - Arindam Banerjee
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
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10
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Majkowska A, Inostroza-Brito KE, Gonzalez M, Redondo-Gómez C, Rice A, Rodriguez-Cabello JC, Del Rio Hernandez AE, Mata A. Peptide-Protein Coassemblies into Hierarchical and Bioactive Tubular Membranes. Biomacromolecules 2023; 24:4419-4429. [PMID: 36696687 PMCID: PMC10565817 DOI: 10.1021/acs.biomac.2c01095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/16/2022] [Indexed: 01/26/2023]
Abstract
Multicomponent self-assembly offers opportunities for the design of complex and functional biomaterials with tunable properties. Here, we demonstrate how minor modifications in the molecular structures of peptide amphiphiles (PAs) and elastin-like recombinamers (ELs) can be used to generate coassembling tubular membranes with distinct structures, properties, and bioactivity. First, by introducing minor modifications in the charge density of PA molecules (PAK2, PAK3, PAK4), different diffusion-reaction processes can be triggered, resulting in distinct membrane microstructures. Second, by combining different types of these PAs prior to their coassembly with ELs, further modifications can be achieved, tuning the structures and properties of the tubular membranes. Finally, by introducing the cell adhesive peptide RGDS in either the PA or EL molecules, it is possible to harness the different diffusion-reaction processes to generate tubular membranes with distinct bioactivities. The study demonstrates the possibility to trigger and achieve minor but crucial differences in coassembling processes and tune material structure and bioactivity. The study demonstrates the possibility to use minor, yet crucial, differences in coassembling processes to tune material structure and bioactivity.
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Affiliation(s)
- Anna Majkowska
- William
Harvey Research Institute, Queen Mary University
of London, London EC1M 6BQ, U.K.
- Institute
of Bioengineering, Queen Mary University
of London, London E1 4NS, U.K.
- School
of Engineering and Materials Science, Queen
Mary University of London, London E1 4NS, U.K.
| | - Karla E. Inostroza-Brito
- School
of Engineering and Materials Science, Queen
Mary University of London, London E1 4NS, U.K.
| | - Mariel Gonzalez
- School
of Engineering and Materials Science, Queen
Mary University of London, London E1 4NS, U.K.
| | - Carlos Redondo-Gómez
- Institute
of Bioengineering, Queen Mary University
of London, London E1 4NS, U.K.
- School
of Engineering and Materials Science, Queen
Mary University of London, London E1 4NS, U.K.
| | - Alistair Rice
- Department
of Bioengineering, Imperial College London, London SW7 2AZ, U.K.
| | | | | | - Alvaro Mata
- Institute
of Bioengineering, Queen Mary University
of London, London E1 4NS, U.K.
- School
of Engineering and Materials Science, Queen
Mary University of London, London E1 4NS, U.K.
- School
of
Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K.
- Biodiscovery
Institute, University of Nottingham, Nottingham NG7 2RD, U.K.
- Department
of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, U.K.
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11
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Makeiff DA, Smith B, Azyat K, Xia M, Alam SB. Development of Gelled-Oil Nanoparticles for the Encapsulation and Release of Berberine. ACS OMEGA 2023; 8:33774-33784. [PMID: 37744867 PMCID: PMC10515596 DOI: 10.1021/acsomega.3c04230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/25/2023] [Indexed: 09/26/2023]
Abstract
In this study, a new drug carrier based on gelled-oil nanoparticles (GNPs) was designed and synthesized for the encapsulation and release of the model hydrophobic drug, berberine chloride (BCl). Two compositions with different oil phases were examined, sesame oil (SO) and cinnamaldehyde (Cin), which were emulsified with water, stabilized with Tween 80 (Tw80), and gelled using an N-alkylated primary oxalamide low-molecular-weight gelator (LMWG) to give stable dispersions of GNPs between 100 and 200 nm in size. The GNP formulation with Cin was significantly favored over SO due to (1) lower gel melting temperatures, (2) higher gel mechanical strength, and (3) significantly higher solubility, encapsulation efficiency, and loading of BCl. Also, the solubility and loading of BCl in Cin were significantly increased (at least 7-fold) with the addition of cinnamic acid. In vitro release studies showed that the release of BCl from the GNPs was independent of gelator concentration and lower than that for BCl solution and the corresponding nanoemulsion (no LWMG). Also, cell internalization studies suggested that the N-alkylated primary oxalamide LMWG did not interfere with the internalization efficiency of BCl into mouse mast cells. Altogether, this work demonstrates the potential use of these new GNP formulations for biomedical studies involving the encapsulation of drugs and nutraceuticals and their controlled release.
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Affiliation(s)
- Darren A. Makeiff
- Nanotechnology Research Center, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G
2M9, Canada
| | - Brad Smith
- Nanotechnology Research Center, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G
2M9, Canada
| | - Khalid Azyat
- Nanotechnology Research Center, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G
2M9, Canada
| | - Mike Xia
- Nanotechnology Research Center, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G
2M9, Canada
| | - Syed Benazir Alam
- Nanotechnology Research Center, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G
2M9, Canada
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12
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Stimuli-Responsive Properties of Supramolecular Gels Based on Pyridyl- N-oxide Amides. Gels 2023; 9:gels9020089. [PMID: 36826259 PMCID: PMC9956205 DOI: 10.3390/gels9020089] [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: 12/26/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
The nature of functional groups and their relative position and orientation play an important role in tuning the gelation properties of stimuli-responsive supramolecular gels. In this work, we synthesized and characterized mono-/bis-pyridyl-N-oxide compounds of N-(4-pyridyl)nicotinamide (L1-L3). The gelation properties of these N-oxide compounds were compared with the reported isomeric counterpart mono-/bis-pyridyl-N-oxide compounds of N-(4-pyridyl)isonicotinamide. Hydrogels obtained with L1 and L3 were thermally and mechanically more stable than the corresponding isomeric counterparts. The surface morphology of the xerogels of di-N-oxides (L3 and diNO) obtained from the water was studied using scanning electron microscopy (SEM), which revealed that the relative position of N-oxide moieties did not have a prominent effect on the gel morphology. The solid-state structural analysis was performed using single-crystal X-ray diffraction to understand the key mechanism in gel formation. The versatile nature of N-oxide moieties makes these gels highly responsive toward an external stimulus, and the stimuli-responsive behavior of the gels in water and aqueous mixtures was studied in the presence of various salts. We studied the effect of various salts on the gelation behavior of the hydrogels, and the results indicated that the salts could induce gelation in L1 and L3 below the minimum gelator concentration of the gelators. The mechanical properties were evaluated by rheological experiments, indicating that the modified compounds displayed enhanced gel strength in most cases. Interestingly, cadmium chloride formed supergelator at a very low concentration (0.7 wt% of L3), and robust hydrogels were obtained at higher concentrations of L3. These results show that the relative position of N-oxide moieties is crucial for the effective interaction of the gelator with salts/ions resulting in LMWGs with tunable properties.
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13
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Noteborn WM, Vittala SK, Torredemer MB, Maity C, Versluis F, Eelkema R, Kieltyka RE. Switching the Mode of Drug Release from a Reaction-Coupled Low-Molecular-Weight Gelator System by Altering Its Reaction Pathway. Biomacromolecules 2023; 24:377-386. [PMID: 36562759 PMCID: PMC9832487 DOI: 10.1021/acs.biomac.2c01197] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Low-molecular-weight hydrogels are attractive scaffolds for drug delivery applications because of their modular and facile preparation starting from inexpensive molecular components. The molecular design of the hydrogelator results in a commitment to a particular release strategy, where either noncovalent or covalent bonding of the drug molecule dictates its rate and mechanism. Herein, we demonstrate an alternative approach using a reaction-coupled gelator to tune drug release in a facile and user-defined manner by altering the reaction pathway of the low-molecular-weight gelator (LMWG) and drug components through an acylhydrazone-bond-forming reaction. We show that an off-the-shelf drug with a reactive handle, doxorubicin, can be covalently bound to the gelator through its ketone moiety when the addition of the aldehyde component is delayed from 0 to 24 h, or noncovalently bound with its addition at 0 h. We also examine the use of an l-histidine methyl ester catalyst to prepare the drug-loaded hydrogels under physiological conditions. Fitting of the drug release profiles with the Korsmeyer-Peppas model corroborates a switch in the mode of release consistent with the reaction pathway taken: increased covalent ligation drives a transition from a Fickian to a semi-Fickian mode in the second stage of release with a decreased rate. Sustained release of doxorubicin from the reaction-coupled hydrogel is further confirmed in an MTT toxicity assay with MCF-7 breast cancer cells. We demonstrate the modularity and ease of the reaction-coupled approach to prepare drug-loaded self-assembled hydrogels in situ with tunable mechanics and drug release profiles that may find eventual applications in macroscale drug delivery.
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Affiliation(s)
- Willem
E. M. Noteborn
- Supramolecular
and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RALeiden, The Netherlands
| | - Sandeepa K. Vittala
- Supramolecular
and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RALeiden, The Netherlands
| | - Maria Broto Torredemer
- Supramolecular
and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RALeiden, The Netherlands
| | - Chandan Maity
- Department
of Chemical Engineering, Delft University
of Technology, Van der
Maasweg 9, 2629 HZDelft, The Netherlands
| | - Frank Versluis
- Department
of Chemical Engineering, Delft University
of Technology, Van der
Maasweg 9, 2629 HZDelft, The Netherlands
| | - Rienk Eelkema
- Department
of Chemical Engineering, Delft University
of Technology, Van der
Maasweg 9, 2629 HZDelft, The Netherlands
| | - Roxanne E. Kieltyka
- Supramolecular
and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RALeiden, The Netherlands,
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14
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Neisi E, Tehrani AD, Shamlouei HR. Fully bio-based supramolecular gel based on cellulose nanowhisker gallate by cyclodextrin host-guest chemistry. Carbohydr Polym 2023; 299:120222. [PMID: 36876823 DOI: 10.1016/j.carbpol.2022.120222] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/14/2022] [Accepted: 10/11/2022] [Indexed: 11/07/2022]
Abstract
Nowadays, supramolecular hydrogels have gained special importance and development of versatile approaches for their preparation as well as their new facile characterization strategies has elicited tremendous scientific interest. Herein, we demonstrate that modified cellulose nanowhisker with gallic acid pendant groups (CNW-GA) could effectively bind with CNW grafted with β-Cyclodextrin (CNW-g-β-CD) through HG interaction to form fully biocompatible and low-cost supramolecular hydrogel. Also, we reported an easy and efficient colorimetric characterization method for confirming HG complexation using naked eye. The possibility of this characterization strategy evaluated both experimentally and theoretically using DFT method. Also, phenolphthalein (PP) was used for visual detection of HG complexation. Interestingly, PP undergoes a rearrangement in its structure in presence of CNW-g-β-CD because of HG complexation that turns the purple molecule into a colorless compound in alkaline condition. Addition of CNW-GA to the resulting colorless solution turned the color to purple again which easily confirmed HG formation.
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Affiliation(s)
- Elham Neisi
- Chemistry Department, Faculty of Science, Lorestan University, Khorram Abad, Lorestan, Iran
| | - Abbas Dadkhah Tehrani
- Chemistry Department, Faculty of Science, Lorestan University, Khorram Abad, Lorestan, Iran.
| | - Hamid Reza Shamlouei
- Chemistry Department, Faculty of Science, Lorestan University, Khorram Abad, Lorestan, Iran
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15
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Aryl-Capped Lysine-Dehydroamino Acid Dipeptide Supergelators as Potential Drug Release Systems. Int J Mol Sci 2022; 23:ijms231911811. [PMID: 36233112 PMCID: PMC9569917 DOI: 10.3390/ijms231911811] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 11/24/2022] Open
Abstract
Employing amino acids and peptides as molecular building blocks provides unique opportunities for generating supramolecular hydrogels, owing to their inherent biological origin, bioactivity, biocompatibility, and biodegradability. However, they can suffer from proteolytic degradation. Short peptides (<8 amino acids) attached to an aromatic capping group are particularly attractive alternatives for minimalistic low molecular weight hydrogelators. Peptides with low critical gelation concentrations (CGCs) are especially desirable, as the low weight percentage required for gelation makes them more cost-effective and reduces toxicity. In this work, three dehydrodipeptides were studied for their self-assembly properties. The results showed that all three dehydrodipeptides can form self-standing hydrogels with very low critical gelation concentrations (0.05−0.20 wt%) using a pH trigger. Hydrogels of all three dehydrodipeptides were characterised by scanning tunnelling emission microscopy (STEM), rheology, fluorescence spectroscopy, and circular dichroism (CD) spectroscopy. Molecular modelling was performed to probe the structural patterns and interactions. The cytotoxicity of the new compounds was tested using human keratinocytes (HaCaT cell line). In general, the results suggest that all three compounds are non-cytotoxic, although one of the peptides shows a small impact on cell viability. In sustained release assays, the effect of the charge of the model drug compounds on the rate of cargo release from the hydrogel network was evaluated. The hydrogels provide a sustained release of methyl orange (anionic) and ciprofloxacin (neutral), while methylene blue (cationic) was retained by the network.
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16
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Zheng J, Song X, Yang Z, Yin C, Luo W, Yin C, Ni Y, Wang Y, Zhang Y. Self-assembly hydrogels of therapeutic agents for local drug delivery. J Control Release 2022; 350:898-921. [PMID: 36089171 DOI: 10.1016/j.jconrel.2022.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 10/14/2022]
Abstract
Advanced drug delivery systems are of vital importance to enhance therapeutic efficacy. Among various recently developed formulations, self-assembling hydrogels composed of therapeutic agents have shown promising potential for local drug delivery owing to their excellent biocompatibility, high drug-loading efficiency, low systemic toxicity, and sustained drug release behavior. In particular, therapeutic agents self-assembling hydrogels with well-defined nanostructures are beneficial for direct delivery to the target site via injection, not only improving drug availability, but also extending their retention time and promoting cellular uptake. In brief, the self-assembly approach offers better opportunities to improve the precision of pharmaceutical treatment and achieve superior treatment efficacies. In this review, we intend to cover the recent developments in therapeutic agent self-assembling hydrogels. First, the molecular structures, self-assembly mechanisms, and application of self-assembling hydrogels are systematically outlined. Then, we summarize the various self-assembly strategies, including the single therapeutic agent, metal-coordination, enzyme-instruction, and co-assembly of multiple therapeutic agents. Finally, the potential challenges and future perspectives are discussed. We hope that this review will provide useful insights into the design and preparation of therapeutic agent self-assembling hydrogels.
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Affiliation(s)
- Jun Zheng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xianwen Song
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zhaoyu Yang
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chao Yin
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Weikang Luo
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chunyang Yin
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yaqiong Ni
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yang Wang
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Yi Zhang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
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17
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Oliveira CBP, Veloso SRS, Castanheira EMS, Figueiredo PR, Carvalho ATP, Hilliou L, Pereira RB, Pereira DM, Martins JA, Ferreira PMT, Jervis PJ. An injectable, naproxen-conjugated, supramolecular hydrogel with ultra-low critical gelation concentration-prepared from a known folate receptor ligand. SOFT MATTER 2022; 18:3955-3966. [PMID: 35551321 DOI: 10.1039/d2sm00121g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Short peptides capped on the N-terminus with aromatic groups are often able to form supramolecular hydrogels-self-assembled networks of fibrils able to trap water molecules. Typically, these hydrogelators can form stiff gels at concentrations of 0.1 to 1.0 wt%-i.e. they consist of mainly water. The properties of these soft materials mimic those of the extracellular matrix (ECM) of biological tissue and therefore they have found many biomedical uses in tissue engineering, wound healing, drug delivery, biosensing and bioprinting applications. In drug delivery strategies related to cancer therapy, injectable hydrogels can serve as a depot formulation, where a sustained release of the chemotherapeutic from near the tumour site allows reduced doses and, therefore, decreased side effects. To further target cancer cells, folic acid-conjugated hydrogels and nanostructures are often sought, to exploit the overexpression of folate receptors on cancer cells-an approach which can allow the selective cellular uptake of an encapsulated drug. In this present study, two known dipeptide folate receptor ligands (1 and 2) recently identified from a screen of a DNA-encoded compound library, were synthesised and investigated for their hydrogelation ability and cytotoxicity. Compound 1, containing a naproxen capping group, rapidly forms hydrogels at concentrations as low as 0.03 wt%-one of the lowest critical gelation concentrations (CGCs) known for a supramolecular hydrogelator. In contrast, compound 2, which contains a 3-indolepropionic acid capping group, was unable to form hydrogels under a range of conditions and concentrations, instead forming nanospheres with diameters of 0.5 μm. Hydrogels of 1 were characterised by STEM microscopy, rheology, fluorescence spectroscopy and circular dichroism. Both compounds 1 and 2 had no impact on the proliferation of kerotinocytes (HaCaT cells) at concentrations up to 100 μM. Compound 1, containing the NSAID, was tested for anti-inflammatory activity in a human cyclooxygenase-1/2 model. The rate of the release of model drug compounds from within hydrogels of 1 was also investigated.
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Affiliation(s)
- Carlos B P Oliveira
- Centre of Chemistry (CQUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Sérgio R S Veloso
- Centre of Physics (CFUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | | | - Pedro R Figueiredo
- CNC - Center for Neuroscience and Cell Biology, Institute for Interdisciplinary Research (IIIUC), University of Coimbra, 3004-504 Coimbra, Portugal
- PhD Programme in Experimental Biology and Biomedicine, Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Casa Costa Alemão, 3030-789 Coimbra, Portugal
| | - Alexandra T P Carvalho
- CNC - Center for Neuroscience and Cell Biology, Institute for Interdisciplinary Research (IIIUC), University of Coimbra, 3004-504 Coimbra, Portugal
- Almac Sciences, Department of Biocatalysis and Isotope Chemistry, Almac House, 20 Seagoe Industrial Estate, Craigavon, BT63 5QD, Northern Ireland, UK
| | - Loic Hilliou
- Institute for Polymers and Composites, Department of Polymer Engineering, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Renato B Pereira
- REQUIMTE/LAQV, Lab. of Pharmacognosy, Dep. of Chemistry, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - David M Pereira
- REQUIMTE/LAQV, Lab. of Pharmacognosy, Dep. of Chemistry, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - José A Martins
- Centre of Chemistry (CQUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Paula M T Ferreira
- Centre of Chemistry (CQUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Peter J Jervis
- Centre of Chemistry (CQUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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18
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Piras CC, Mahon CS, Genever PG, Smith DK. Shaping and Patterning Supramolecular Materials─Stem Cell-Compatible Dual-Network Hybrid Gels Loaded with Silver Nanoparticles. ACS Biomater Sci Eng 2022; 8:1829-1840. [PMID: 35364810 PMCID: PMC9092345 DOI: 10.1021/acsbiomaterials.1c01560] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
Hydrogels
with spatio-temporally
controlled properties are appealing
materials for biological and pharmaceutical applications. We make
use of mild acidification protocols to fabricate hybrid gels using
calcium alginate in the presence of a preformed thermally triggered
gel based on a low-molecular-weight gelator (LMWG) 1,3:2:4-di(4-acylhydrazide)-benzylidene
sorbitol (DBS-CONHNH2). Nonwater-soluble calcium carbonate
slowly releases calcium ions over time when exposed to an acidic pH,
triggering the assembly of the calcium alginate gel network. We combined
the gelators in different ways: (i) the LMWG was used as a template
to spatially control slow calcium alginate gelation within preformed
gel beads, using glucono-δ-lactone (GdL) to lower the pH; (ii)
the LMWG was used as a template to spatially control slow calcium
alginate gelation within preformed gel trays, using diphenyliodonium
nitrate (DPIN) as a photoacid to lower the pH, and spatial resolution
was achieved by masking. The dual-network hybrid gels display highly
tunable properties, and the beads are compatible with stem cell growth.
Furthermore, they preserve the LMWG function of inducing in situ silver
nanoparticle (AgNP) formation, which provides the gels with antibacterial
activity. These gels have potential for eventual regenerative medicine
applications in (e.g.) bone tissue engineering.
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Affiliation(s)
- Carmen C Piras
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Clare S Mahon
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Paul G Genever
- Department of Biology, University of York, Heslington, York YO10 5DD, United Kingdom
| | - David K Smith
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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19
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In situ synthesis of reduction-responsive organogelators via oxidative coupling of tritylthio-terminated gallic acid derivatives. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Mason ML, Lin T, Linville JJ, Parquette JR. Co-assembly of a multicomponent network of nanofiber-wrapped nanotubes. NANOSCALE 2022; 14:4531-4537. [PMID: 35258058 DOI: 10.1039/d1nr08508e] [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
Strategies to create organized multicomponent nanostructures composed of discrete, self-sorted domains are important for developing materials that mimic the complexity and multifunctionality found in biological systems. These structures can be challenging to achieve due to the required balance of molecular self-recognition and supramolecular attraction needed between the components. Herein, we report a strategy to construct a two-component nanostructure via a hierarchical assembly process whereby two monomeric building blocks undergo self-sorting assembly at the molecular level followed by a supramolecular association to form a nanofiber-wrapped nanotube. The two molecules self-sorted into respective nanofiber and nanotube assemblies, yet assembly of the nanofibers in the presence of the nanotube template allowed for directed integration into a hierarchical multilayer structure via electrostatic interactions. The fiber-wrapped nanotube co-assembly was characterized using transmission electron microscopy (TEM), atomic force microscopy (AFM) and Förster resonance energy transfer (FRET) between the components. Strategies to co-assemble multicomponent nanostructures composed of discrete, spatially sorted domains with controllable higher level interactions will be critical for the development of novel, functionally competent nanomaterials.
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Affiliation(s)
- McKensie L Mason
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave. Columbus, Ohio 43210, USA.
| | - Tao Lin
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave. Columbus, Ohio 43210, USA.
| | - Jenae J Linville
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave. Columbus, Ohio 43210, USA.
| | - Jon R Parquette
- Department of Chemistry and Biochemistry, The Ohio State University, 100 W. 18th Ave. Columbus, Ohio 43210, USA.
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21
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Patterson AK, El-Qarra LH, Smith DK. Chirality-directed hydrogel assembly and interactions with enantiomers of an active pharmaceutical ingredient. Chem Commun (Camb) 2022; 58:3941-3944. [PMID: 35244630 DOI: 10.1039/d1cc06942j] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantiomers of the low-molecular-weight gelator (LMWG) DBS-CONHNH2, based on D- or L- 1,3 : 2,4-dibenzylidenesorbitol (DBS), were synthesised. Enantiomeric gels are equivalent, but when mixtures of enantiomers are used, although gels still form, they are weaker than homochiral gels. Nanoscale chirality is lost on adding even a small proportion of the opposite enantiomer - homochiral assembly underpins effective gelation. Enantiomeric gels encapsulate the two enantiomers of anti-inflammatory drug naproxen, with thermal & mechanical differences between diastereomeric systems. We hence demonstrate the importance of chirality in DBS assembly and its interactions with chiral additives.
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Affiliation(s)
- Anna K Patterson
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
| | - Lamisse H El-Qarra
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
| | - David K Smith
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
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22
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Rumon MMH, Sarkar SD, Uddin MM, Alam MM, Karobi SN, Ayfar A, Azam MS, Roy CK. Graphene oxide based crosslinker for simultaneous enhancement of mechanical toughness and self-healing capability of conventional hydrogels. RSC Adv 2022; 12:7453-7463. [PMID: 35424695 PMCID: PMC8982252 DOI: 10.1039/d2ra00122e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/01/2022] [Indexed: 01/23/2023] Open
Abstract
Extraordinary self-healing efficiency is rarely observed in mechanically strong hydrogels, which often limits the applications of hydrogels in biomedical engineering. We have presented an approach to utilize a special type of graphene oxide-based crosslinker (GOBC) for the simultaneous improvement of toughness and self-healing properties of conventional hydrogels. The GOBC has been prepared from graphene oxide (GO) by surface oxidation and further introduction of vinyl groups. It has been designed in such a way that the crosslinker is able to form both covalent bonds and noncovalent interactions with the polymer chains of hydrogels. To demonstrate the efficacy of GOBC, it was incorporated in a conventional polyacrylamide (PAM) and polyacrylic acid (PAA) hydrogel matrix, and the mechanical and self-healing properties of the prepared hydrogels were investigated. In PAM-GOBC hydrogels, it has been observed that the mechanical properties such as tensile strength, Young's modulus, and toughness are significantly improved by the incorporation of GOBC without compromising the self-healing efficiency. The PAM-GOBC hydrogel with a modulus of about 0.446 MPa exhibited about 70% stress healing efficiency after 40 h. Whereas, under the same conditions a PAM hydrogel with commonly used crosslinker N,N′-methylene-bis(acrylamide) of approximately the same modulus demonstrated no self-healing at all. Similar improvement of self-healing properties and toughness in PAA-GOBC hydrogel has also been observed which demonstrated the universality of the crosslinker. This crosslinker-based approach to improve the self-healing properties is expected to offer the possibility of the application of commonly used hydrogels in many different sectors, particularly in developing artificial tissues. Introduction of a two-dimensional graphene oxide-based crosslinker simultaneously improve the mechanical and self-healing properties of hydrogels by offering an interesting combination of covalent and reversible hydrogen bonds to polymer backbones.![]()
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Affiliation(s)
| | - Stephen Don Sarkar
- Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Md Mosfeq Uddin
- Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Md Mahbub Alam
- Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | | | - Aruna Ayfar
- Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Md Shafiul Azam
- Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Chanchal Kumar Roy
- Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
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23
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Wang HX, Xu L, Zhu X, Xue C, Zhang L, Liu M. Dissymmetrical tails-regulated helical nanoarchitectonics of amphiphilic ornithines: nanotubes, bundles and twists. NANOSCALE 2022; 14:1001-1007. [PMID: 35024717 DOI: 10.1039/d1nr07538a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
How dissymmetrical tails (i.e. tails of different lengths) in one lipid molecule exert an impact on the structure and properties of the resulting assembly is an intriguing issue in both biological and material senses. However, the underlying mechanism that engenders such phenomena is still obscure, which prompted us to unmask it by exploring the self-assembly behaviours of artificial building blocks comprising dissymmetrical tails. Here, a series of Fmoc-protected ornithine lipids with dissymmetrical alkyl tails was designed and the dissymmetry of the two tails was found to hierarchically tune the self-assembled nanostructures from nanotubes to bundles and nanotwists. With the Fmoc-headgroup employed as a chromophorous probe, it was revealed that the alkyl chain dissymmetry controlled the interacting modes of van der Waals interactions between alkyl tails, π-π stacking between Fmoc motifs and hydrogen bonding formed by the three amide bonds in lipid bilayers. The counterbalance between those noncovalent interactions was responsible for such remarkable tuning ability towards self-assembly and emissive behaviours of the lipids, including circularly polarized light emission. This work provides insight into dissymmetrical tails-regulated biological structures and functions of natural lipids, and also sets up a novel strategy of rationally modulating chiral and emissive properties of supramolecular materials, i.e., tunable CPL materials, by exploitation of the tail dissymmetry.
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Affiliation(s)
- Han-Xiao Wang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Lifei Xu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xuefeng Zhu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Chenlu Xue
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Li Zhang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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24
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Ghosh S, Ghosh S, Baildya N, Ghosh K. Dehydroabietylamine-decorated imino-phenols: supramolecular gelation and gel phase selective detection of Fe 3+, Cu 2+ and Hg 2+ ions under different experimental conditions. NEW J CHEM 2022. [DOI: 10.1039/d2nj00830k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Dehydroabietylamine-linked Schiff bases 1–3 have been synthesized, characterized and employed in metal ion sensing in a sol–gel medium. The compounds have a propensity for gel formation from aqueous organic solvents.
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Affiliation(s)
- Subhasis Ghosh
- Department of Chemistry, University of Kalyani, Kalyani-741235, India
| | - Sumit Ghosh
- Department of Chemistry, University of Kalyani, Kalyani-741235, India
| | - Nabajyoti Baildya
- Department of Chemistry, University of Kalyani, Kalyani-741235, India
| | - Kumaresh Ghosh
- Department of Chemistry, University of Kalyani, Kalyani-741235, India
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25
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Biswas P, Datta HK, Dastidar P. Multi-NSAID-based Zn(II) coordination complex-derived metallogelators/metallogels as plausible multi-drug self-delivery systems. Chem Commun (Camb) 2021; 58:969-972. [PMID: 34939629 DOI: 10.1039/d1cc05334e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metallogelators/metallogels derived from a series of multi-NSAID-based Zn(II)-coordination complexes displaying anti-cancer and anti-bacterial properties were designed based on a structural rationale as plausible multi-drug self-delivery systems.
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Affiliation(s)
- Protap Biswas
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A and 2B Raja S.C. Mullick Road, Jadavpur, Kolkata-700032, West Bengal, India.
| | - Hemanta Kumar Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A and 2B Raja S.C. Mullick Road, Jadavpur, Kolkata-700032, West Bengal, India.
| | - Parthasarathi Dastidar
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A and 2B Raja S.C. Mullick Road, Jadavpur, Kolkata-700032, West Bengal, India.
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26
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Feng G, Zhang S, Zhong S, Tan M, Yang Y, Dou Y, Cui X. Temperature and pH dual-responsive supramolecular hydrogels based on riboflavin sodium phosphate and 2,6-Diaminopurine with thixotropic and fluorescent properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127548] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Kuosmanen RT, Truong K, Rissanen KT, Sievänen EI. The Effect of the Side Chain on Gelation Properties of Bile Acid Alkyl Amides. ChemistryOpen 2021; 10:1150-1157. [PMID: 34806846 PMCID: PMC8607806 DOI: 10.1002/open.202100245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/02/2021] [Indexed: 11/06/2022] Open
Abstract
Six bile acid alkyl amide derivatives were studied with respect to their gelation properties. The derivatives were composed of three different bile acids with hexyl or cyclohexyl side chains. The gelation behaviour of all six compounds were studied for 36 solvents with varying polarities. Gelation was observed mainly in aromatic solvents, which is characteristic for bile-acid-based low molecular weight gelators. Out of 108 bile acid-solvent combinations, a total of 44 gel systems were formed, 28 of which from lithocholic acid derivatives, only two from deoxycholic acid derivatives, and 14 from cholic acid derivatives. The majority of the gel systems were formed from bile acids with hexyl side chains, contrary to the cyclohexyl group, which seems to be a poor gelation moiety. These results indicate that the spatial demand of the side chain is the key feature for the gelation properties of the bile acid amides.
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Affiliation(s)
- Riikka T. Kuosmanen
- Department of ChemistryUniversity of JyvaskylaP.O. Box 3540014JyväskyläFinland
| | - Khai‐Nghi Truong
- Department of ChemistryUniversity of JyvaskylaP.O. Box 3540014JyväskyläFinland
| | - Kari T. Rissanen
- Department of ChemistryUniversity of JyvaskylaP.O. Box 3540014JyväskyläFinland
| | - Elina I. Sievänen
- Department of ChemistryUniversity of JyvaskylaP.O. Box 3540014JyväskyläFinland
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28
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Piras CC, Patterson AK, Smith DK. Hybrid Self-Assembled Gel Beads for Tuneable pH-Controlled Rosuvastatin Delivery. Chemistry 2021; 27:13203-13210. [PMID: 34346527 PMCID: PMC8519141 DOI: 10.1002/chem.202101405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Indexed: 12/11/2022]
Abstract
This article describes the fabrication of new pH-responsive hybrid gel beads combining the polymer gelator calcium alginate with two different low-molecular-weight gelators (LMWGs) based on 1,3 : 2,4-dibenzylidene-d-sorbitol: pH-responsive DBS-COOH and thermally responsive DBS-CONHNH2 , thus clearly demonstrating that different classes of LMWG can be fabricated into gel beads by using this approach. We also demonstrate that self-assembled multicomponent gel beads can be formed by using different combinations of these gelators. The different gel bead formulations exhibit different responsiveness - the DBS-COOH network can disassemble within those beads in which it is present upon raising the pH. To exemplify preliminary data for a potential application for these hybrid gel beads, we explored aspects of the delivery of the lipid-lowering active pharmaceutical ingredient (API) rosuvastatin. The release profile of this statin from the hybrid gel beads is pH-dependent, with greater release at pH 7.4 than at pH 4.0 - primary control of this process results from the pKa of the API. The extent of pH-mediated API release is also significantly further modified according to gel bead composition. The DBS-COOH/alginate beads show rapid, highly effective drug release at pH 7.4, whereas the three-component DBS-COOH/DBS-CONHNH2 /alginate system shows controlled slow release of the API under the same conditions. These initial results indicate that such gel beads constitute a promising, versatile and easily tuned platform suitable for further development for controlled drug-delivery applications.
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Affiliation(s)
- Carmen C. Piras
- Department of ChemistryUniversity of YorkHeslington, YorkYO10 5DDUK
| | | | - David K. Smith
- Department of ChemistryUniversity of YorkHeslington, YorkYO10 5DDUK
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29
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Wang JT, Rodrigo AC, Patterson AK, Hawkins K, Aly MMS, Sun J, Al Jamal KT, Smith DK. Enhanced Delivery of Neuroactive Drugs via Nasal Delivery with a Self-Healing Supramolecular Gel. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101058. [PMID: 34029010 PMCID: PMC8292877 DOI: 10.1002/advs.202101058] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/19/2021] [Indexed: 05/04/2023]
Abstract
This paper reports the use of a self-assembling hydrogel as a delivery vehicle for the Parkinson's disease drug l-DOPA. Based on a two-component combination of an l-glutamine amide derivative and benzaldehyde, this gel has very soft rheological properties and self-healing characteristics. It is demonstrated that the gel can be formulated to encapsulate l-DOPA. These drug-loaded gels are characterized, and rapid release of the drug is obtained from the gel network. This drug-loaded hydrogel has appropriate rheological characteristics to be amenable for injection. This system is therefore tested as a vehicle for nasal delivery of neurologically-active drugs-a drug delivery strategy that can potentially avoid first pass liver metabolism and bypass the blood-brain barrier, hence enhancing brain uptake. In vitro tests indicate that the gel has biocompatibility with respect to nasal epithelial cells. Furthermore, animal studies demonstrate that the nasal delivery of a gel loaded with 3 H-labeled l-DOPA out-performed a simple intranasal l-DOPA solution. This is attributed to longer residence times of the gel in the nasal cavity resulting in increased blood and brain concentrations. It is demonstrated that the likely routes of brain penetration of intranasally-delivered l-DOPA gel involve the trigeminal and olfactory nerves connecting to other brain regions.
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Affiliation(s)
- Julie Tzu‐Wen Wang
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, Faculty of Life Science and MedicineKing's College London150 Stamford streetLondonSE1 9NHUK
| | - Ana C. Rodrigo
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
| | | | - Kirsten Hawkins
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
| | - Mazen M. S. Aly
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, Faculty of Life Science and MedicineKing's College London150 Stamford streetLondonSE1 9NHUK
| | - Jia Sun
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, Faculty of Life Science and MedicineKing's College London150 Stamford streetLondonSE1 9NHUK
| | - Khuloud T. Al Jamal
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, Faculty of Life Science and MedicineKing's College London150 Stamford streetLondonSE1 9NHUK
| | - David K. Smith
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
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30
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Rizzo C, Marullo S, Billeci F, D'Anna F. Catalysis in Supramolecular Systems: the Case of Gel Phases. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100372] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Carla Rizzo
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Salvatore Marullo
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Floriana Billeci
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Francesca D'Anna
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
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31
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Zheng J, Lv S, Zhong Y, Jiang X. Injectable hydroxypropyl chitin hydrogels embedded with carboxymethyl chitin microspheres prepared via a solvent-free process for drug delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:1564-1583. [PMID: 33957063 DOI: 10.1080/09205063.2021.1926893] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Microspheres and injectable hydrogels derived from natural biopolymers have been extensively investigated as controlled local drug delivery systems. In this study, we prepared carboxymethyl chitin microspheres (CMCH-Ms) with a diameter of 10-100 μm through physical crosslinking by increasing temperature in an aqueous two-phase system without using organic solvents, surfactants and crosslinking agents. The stable microspheres keeping spherical shape with porous microstructure in different pH environments were embeded in thermosensitive hydroxypropyl chitin (HPCH) hydrogels. The morphology, gelation rate, swelling, rheological and mechanical properties, in vitro degradation and cytotoxicity, drug loading and drug release of the CMCH-Ms/HPCH gel scaffolds were examined. In vitro degradation and cytotoxicity test indicated that CMCH-Ms/HPCH gel scaffolds were biodegradable and non-cytotoxic. Moreover, no organic solvent was used in the preparation and drug loading process of CMCH-Ms/HPCH gel scaffold. Importantly, less burst drug release and long-term sustained-release from the CMCH-Ms/HPCH composite hydrogel was observed than those from only CMCH-Ms or HPCH hydrogel. Thus, the composite CMCH-Ms/HPCH hydrogel exhibited great potential application for loading different drugs and sustained drug release in controlled local drug delivery systems.
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Affiliation(s)
- Jieyu Zheng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, P.R. China
| | - Siyao Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, P.R. China
| | - Yalan Zhong
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, P.R. China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, P.R. China
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32
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Webber MJ, Pashuck ET. (Macro)molecular self-assembly for hydrogel drug delivery. Adv Drug Deliv Rev 2021; 172:275-295. [PMID: 33450330 PMCID: PMC8107146 DOI: 10.1016/j.addr.2021.01.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 01/15/2023]
Abstract
Hydrogels prepared via self-assembly offer scalable and tunable platforms for drug delivery applications. Molecular-scale self-assembly leverages an interplay of attractive and repulsive forces; drugs and other active molecules can be incorporated into such materials by partitioning in hydrophobic domains, affinity-mediated binding, or covalent integration. Peptides have been widely used as building blocks for self-assembly due to facile synthesis, ease of modification with bioactive molecules, and precise molecular-scale control over material properties through tunable interactions. Additional opportunities are manifest in stimuli-responsive self-assembly for more precise drug action. Hydrogels can likewise be fabricated from macromolecular self-assembly, with both synthetic polymers and biopolymers used to prepare materials with controlled mechanical properties and tunable drug release. These include clinical approaches for solubilization and delivery of hydrophobic drugs. To further enhance mechanical properties of hydrogels prepared through self-assembly, recent work has integrated self-assembly motifs with polymeric networks. For example, double-network hydrogels capture the beneficial properties of both self-assembled and covalent networks. The expanding ability to fabricate complex and precise materials, coupled with an improved understanding of biology, will lead to new classes of hydrogels specifically tailored for drug delivery applications.
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Affiliation(s)
- Matthew J Webber
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, IN 46556, USA.
| | - E Thomas Pashuck
- Lehigh University, Department of Bioengineering, Bethlehem, PA 18015, USA.
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33
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Realizing tissue integration with supramolecular hydrogels. Acta Biomater 2021; 124:1-14. [PMID: 33508507 DOI: 10.1016/j.actbio.2021.01.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/04/2021] [Accepted: 01/21/2021] [Indexed: 12/17/2022]
Abstract
Biomaterial matrices must permit tissue growth and maturation for the success of tissue regeneration strategies. Naturally, this accommodation is achieved via the dynamic remodeling of a cell's extracellular matrix (ECM). Synthetically, hydrolytic or enzymatic degradation are often engineered into materials for this purpose. More recently, supramolecular interactions have been used to provide a biomimetic and tunable mechanism to facilitate tissue formation via their dynamic and reversible non-covalent interactions. By engineering the mechanical and bioactive properties of a material, supramolecular chemists are able to design permissivity into the construct and facilitate tissue integration in-vivo. Furthermore, via the reversibility of non-covalent interactions, injectability and responsiveness can be designed for enhanced delivery and spatio-temporal control. In this review, we delineate the basic considerations needed when designing permissive supramolecular hydrogels for tissue engineering with an eye toward tissue growth and integration. We highlight three archetypal hydrogel systems that have shown well-documented tissue integration in vivo, and provide avenues to assess tissue in-growth. Careful design and assessment of the biomedical potential of a supramolecular hydrogels can inspire the creation of robust and dynamic implants for new tissue engineering applications.
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34
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Martí-Centelles R, Dolz-Pérez I, De la O J, Ontoria-Oviedo I, Sepúlveda P, Nebot VJ, Vicent MJ, Escuder B. Two-Component Peptidic Molecular Gels for Topical Drug Delivery of Naproxen. ACS APPLIED BIO MATERIALS 2021. [DOI: 10.1021/acsabm.0c01422] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Rosa Martí-Centelles
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Castelló 12071, Spain
| | - Irene Dolz-Pérez
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Valencia 46012, Spain
| | - Jaciel De la O
- Polypeptide Therapeutic Solutions S.L., 46980 Paterna, Spain
| | - Imelda Ontoria-Oviedo
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia 46026, Spain
| | - Pilar Sepúlveda
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia 46026, Spain
| | - Vicent J. Nebot
- Polypeptide Therapeutic Solutions S.L., 46980 Paterna, Spain
| | - Maria J. Vicent
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Valencia 46012, Spain
| | - Beatriu Escuder
- Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Castelló 12071, Spain
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