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Singh S, Sharma AK, Gade HM, Agarwal V, Nasani R, Verma N, Sharma B. Stimuli-responsive and self-healing supramolecular Zn(II)-guanosine metal-organic gel for Schottky barrier diode application. Soft Matter 2024; 20:1025-1035. [PMID: 38197513 DOI: 10.1039/d3sm01405c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Spontaneous formation of a supramolecular metal-organic hydrogel using unsubstituted guanosine as a ligand and Zn2+ ions is reported. Guanosine, in the presence of NaOH, self-assembled into a stable G-quadruplex structure, which underwent crosslinking through Zn2+ ions to afford a stable hydrogel. The gel has been characterized using several spectroscopic as well as microscopic studies. The hydrogel demonstrated excellent stimuli responsiveness towards various chemicals and pH. Furthermore, the gel exhibited intrinsic thixotropic behavior and showed self-healing and injectable properties. The optical properties of the Zn-guanosine metallo-hydrogel suggested a semiconducting nature of the gel, which has been exploited for fabricating a thin film device based on a Schottky diode interface between metal and a semiconductor. The fabricated device shows excellent charge transport characteristics and linear rectifying behavior. The findings are likely to pave the way for newer research in the area of soft electronic devices fabricated using materials synthesized by employing simple biomolecules.
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Affiliation(s)
- Surbhi Singh
- Materials Research Centre, Malaviya National Institute of Technology Jaipur, Malviya Nagar, Jaipur 302017, India.
| | - Atul Kumar Sharma
- Department of Electronics and Communication Engineering, Malaviya National Institute of Technology Jaipur, Malviya Nagar, Jaipur 302017, India
| | - Hrushikesh M Gade
- Department of Chemical Engineering, Malaviya National Institute of Technology Jaipur, Malviya Nagar, Jaipur 302017, India
| | - Vidhi Agarwal
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore 453552, India
| | - Rajendar Nasani
- School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad 500046, India
| | - Nisha Verma
- Materials Research Centre, Malaviya National Institute of Technology Jaipur, Malviya Nagar, Jaipur 302017, India.
| | - Bhagwati Sharma
- Materials Research Centre, Malaviya National Institute of Technology Jaipur, Malviya Nagar, Jaipur 302017, India.
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Pepe A, Moretti P, Yoneda JS, Carducci F, Itri R, Mariani P. Self-oriented anisotropic structure of G-hydrogels as a delicate balance between attractive and repulsive forces. Nanoscale 2023; 15:15196-15205. [PMID: 37624640 DOI: 10.1039/d3nr01348k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
Guanine (G) hydrogels are very attractive materials made by the supramolecular organization of G-derivatives in water. In this paper, hydrogels composed of guanosine 5'-monophosphate (GMP) and guanosine (Gua), that make long, flexible and knotted G-quadruplexes, were investigated by small- and wide-angle X-ray scattering (SAXS and WAXS) to comprehend the origin of their unique orientational properties. The SAXS intensity, analysed at a fixed scattering vector modulus Q as a function of polar angle, allowed us to derive the Maier-Saupe orientation parameter m. The strong dependence of m on hydrogel composition and temperature demonstrated that the preferred orientation is controlled by the quadruplex surface charge and flexibility. Indeed, a possible correlation between the orientation parameter m and the quadruplex-to-quadruplex lateral interactions was explored. Results confirmed that the balance between attractive and repulsive interactions plays a main role in the orientational anisotropy: quadruplex clusters lose their orientational properties when attractive interactions decrease. The key role of the number of negative charges per unit length of the G-quadruplex filaments was confirmed by Atomic Force Microscopy (AFM) observations. Indeed, directionality histograms showed that in the presence of a large amount of Gua, G-quadruplexes follow preferential orientations other than those related to the strong interactions with the K+ pattern on the mica surface. The fact that lateral quadruplex-to-quadruplex interactions, even in the presence of external (opposing) forces, can tune the hydrogel alignment in a given preferred direction provides novel possibilities for scaffold/3D printing applications.
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Affiliation(s)
- Alessia Pepe
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy.
| | - Paolo Moretti
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy.
| | - Juliana S Yoneda
- Department of Applied Physics, Institute of Physics, University of São Paulo, São Paulo, Brazil
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Federica Carducci
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy.
| | - Rosangela Itri
- Department of Applied Physics, Institute of Physics, University of São Paulo, São Paulo, Brazil
| | - Paolo Mariani
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy.
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Fang J, Zheng L, Liu Y, Peng Y, Yang Q, Huang Y, Zhang J, Luo L, Shen D, Tan Y, Lu X, Feng G. Smart G-quadruplex hydrogels: From preparations to comprehensive applications. Int J Biol Macromol 2023; 247:125614. [PMID: 37414320 DOI: 10.1016/j.ijbiomac.2023.125614] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/18/2023] [Accepted: 06/27/2023] [Indexed: 07/08/2023]
Abstract
In recent years, the accelerated development of G-quadruplexes and hydrogels has driven the development of intelligent biomaterials. Based on the excellent biocompatibility and special biological functions of G-quadruplexes, and the hydrophilicity, high-water retention, high water content, flexibility and excellent biodegradability of hydrogels, G-quadruplex hydrogels are widely used in various fields by combining the dual advantages of G-quadruplexes and hydrogels. Here, we provide a systematic and comprehensive classification of G-quadruplex hydrogels in terms of preparation strategies and applications. This paper reveals how G-quadruplex hydrogels skillfully utilize the special biological functions of G-quadruplexes and the skeleton structure of hydrogels, and expounds its applications in the fields of biomedicine, biocatalysis, biosensing and biomaterials. In addition, we deeply analyze the challenges in preparation, applications, stability and safety of G-quadruplex hydrogels, as well as potential future development directions.
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Affiliation(s)
- Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Lijuan Zheng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yan Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yuxin Peng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Qinghui Yang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yuewen Huang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Jiali Zhang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Lixin Luo
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Dunkai Shen
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yuyan Tan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Xuefen Lu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Guangfu Feng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China.
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Liu J, Zhang Z, Yan Y, Zhang X, Xiao C, Chen X. Microrod crystals formed via Rhein-mediated mineralization. Chem Commun (Camb) 2023; 59:10169-10172. [PMID: 37534478 DOI: 10.1039/d3cc02527f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Herein, a Rhein-mineralized microrod crystal (H-RMM) with an ultra-high drug loading capacity was reported for anti-inflammation. Due to a dense crystal structure, the H-RMM achieved improved biocompatibility and sustained controlled release of Rhein. Also, the Rhein nanofibers released from H-RMM were favorable to be internalized by cells, leading to enhanced anti-inflammation effects.
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Affiliation(s)
- Jiaying Liu
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zhenyan Zhang
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Yu Yan
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xiaonong Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chunsheng Xiao
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xuesi Chen
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China.
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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Godoy-Gallardo M, Merino-Gómez M, Mateos-Timoneda MA, Eckhard U, Gil FJ, Perez RA. Advanced Binary Guanosine and Guanosine 5'-Monophosphate Cell-Laden Hydrogels for Soft Tissue Reconstruction by 3D Bioprinting. ACS Appl Mater Interfaces 2023. [PMID: 37319328 DOI: 10.1021/acsami.2c23277] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Soft tissue defects or pathologies frequently necessitate the use of biomaterials that provide the volume required for subsequent vascularization and tissue formation as autrografts are not always a feasible alternative. Supramolecular hydrogels represent promising candidates because of their 3D structure, which resembles the native extracellular matrix, and their capacity to entrap and sustain living cells. Guanosine-based hydrogels have emerged as prime candidates in recent years since the nucleoside self-assembles into well-ordered structures like G-quadruplexes by coordinating K+ ions and π-π stacking, ultimately forming an extensive nanofibrillar network. However, such compositions were frequently inappropriate for 3D printing due to material spreading and low shape stability over time. Thus, the present work aimed to develop a binary cell-laden hydrogel capable of ensuring cell survival while providing enough stability to ensure scaffold biointegration during soft tissue reconstruction. For that purpose, a binary hydrogel made of guanosine and guanosine 5'-monophosphate was optimized, rat mesenchymal stem cells were entrapped, and the composition was bioprinted. To further increase stability, the printed structure was coated with hyperbranched polyethylenimine. Scanning electron microscopic studies demonstrated an extensive nanofibrillar network, indicating excellent G-quadruplex formation, and rheological analysis confirmed good printing and thixotropic qualities. Additionally, diffusion tests using fluorescein isothiocyanate labeled-dextran (70, 500, and 2000 kDa) showed that nutrients of various molecular weights may diffuse through the hydrogel scaffold. Finally, cells were evenly distributed throughout the printed scaffold, cell survival was 85% after 21 days, and lipid droplet formation was observed after 7 days under adipogenic conditions, indicating successful differentiation and proper cell functioning. To conclude, such hydrogels may enable the 3D bioprinting of customized scaffolds perfectly matching the respective soft tissue defect, thereby potentially improving the outcome of the tissue reconstruction intervention.
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Affiliation(s)
- Maria Godoy-Gallardo
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, Barcelona 08195, Spain
| | - Maria Merino-Gómez
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, Barcelona 08195, Spain
| | - Miguel A Mateos-Timoneda
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, Barcelona 08195, Spain
| | - Ulrich Eckhard
- Department of Structural and Molecular Biology, Molecular Biology Institute of Barcelona (IBMB), Higher Scientific Research Council (CSIC), Barcelona Science Park, Baldiri Reixac 15-21, Barcelona 08028, Spain
| | - F Javier Gil
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, Barcelona 08195, Spain
| | - Roman A Perez
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, Barcelona 08195, Spain
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Merino-Gómez M, Godoy-Gallardo M, Wendner M, Mateos-Timoneda MA, Gil FJ, Perez RA. Optimization of guanosine-based hydrogels with boric acid derivatives for enhanced long-term stability and cell survival. Front Bioeng Biotechnol 2023; 11:1147943. [PMID: 37020512 PMCID: PMC10069680 DOI: 10.3389/fbioe.2023.1147943] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/03/2023] [Indexed: 03/22/2023] Open
Abstract
Tissue defects can lead to serious health problems and often require grafts or transplants to repair damaged soft tissues. However, these procedures can be complex and may not always be feasible due to a lack of available tissue. Hydrogels have shown potential as a replacement for tissue grafts due to their ability to support cell survival and encapsulate biomolecules such as growth factors. In particular, guanosine-based hydrogels have been explored as a potential solution, but they often exhibit limited stability which hampers their use in the biofabrication of complex grafts. To address this issue, we explored the use of borate ester chemistry and more complex boric acid derivatives to improve the stability and properties of guanosine-based hydrogels. We hypothesized that the aromatic rings in these derivatives would enhance the stability and printability of the hydrogels through added π-π stack interactions. After optimization, 13 compositions containing either 2-naphthylboronic acid or boric acid were selected. Morphology studies shows a well-defined nanofibrilar structure with good printable properties (thixotropic behaviour, print fidelity and printability). Moreover, the pH of all tested hydrogels was within the range suitable for cell viability (7.4–8.3). Nevertheless, only the boric acid-based formulations were stable for at least 7 days. Thus, our results clearly demonstrated that the presence of additional aromatic rings did actually impair the hydrogel properties. We speculate that this is due to steric hindrance caused by adjacent groups, which disrupt the correct orientation of the aromatic groups required for effective π-π stack interactions of the guanosine building block. Despite this drawback, the developed guanosine-boric acid hydrogel exhibited good thixotropic properties and was able to support cell survival, proliferation, and migration. For instance, SaOS-2 cells planted on these printed structures readily migrated into the hydrogel and showed nearly 100% cell viability after 7 days. In conclusion, our findings highlight the potential of guanosine-boric acid hydrogels as tissue engineering scaffolds that can be readily enhanced with living cells and bioactive molecules. Thus, our work represents a significant advancement towards the development of functionalized guanosine-based hydrogels.
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Affiliation(s)
- Maria Merino-Gómez
- Bioengineering Institute of Technology (BIT), Faculty of Medicine and Health Sciences, International University of Catalonia (UIC), Sant Cugat del Vallès, Spain
| | - Maria Godoy-Gallardo
- Bioengineering Institute of Technology (BIT), Faculty of Medicine and Health Sciences, International University of Catalonia (UIC), Sant Cugat del Vallès, Spain
- *Correspondence: Maria Godoy-Gallardo, ; Roman A. Perez,
| | - Mathias Wendner
- Bioengineering Institute of Technology (BIT), Faculty of Medicine and Health Sciences, International University of Catalonia (UIC), Sant Cugat del Vallès, Spain
| | - Miguel A. Mateos-Timoneda
- Bioengineering Institute of Technology (BIT), Faculty of Medicine and Health Sciences, International University of Catalonia (UIC), Sant Cugat del Vallès, Spain
| | - F. Javier Gil
- Bioengineering Institute of Technology (BIT), Faculty of Medicine and Health Sciences, International University of Catalonia (UIC), Sant Cugat del Vallès, Spain
- Department of Dentistry, Faculty of Dentistry, International University of Catalonia (UIC), Sant Cugat del Vallès, Spain
| | - Roman A. Perez
- Bioengineering Institute of Technology (BIT), Faculty of Medicine and Health Sciences, International University of Catalonia (UIC), Sant Cugat del Vallès, Spain
- *Correspondence: Maria Godoy-Gallardo, ; Roman A. Perez,
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Merino-Gómez M, Gil J, Perez RA, Godoy-Gallardo M. Polydopamine Incorporation Enhances Cell Differentiation and Antibacterial Properties of 3D-Printed Guanosine-Borate Hydrogels for Functional Tissue Regeneration. Int J Mol Sci 2023; 24:ijms24044224. [PMID: 36835636 PMCID: PMC9964593 DOI: 10.3390/ijms24044224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/22/2023] Open
Abstract
Tissue engineering focuses on the development of materials as biosubstitutes that can be used to regenerate, repair, or replace damaged tissues. Alongside this, 3D printing has emerged as a promising technique for producing implants tailored to specific defects, which in turn increased the demand for new inks and bioinks. Especially supramolecular hydrogels based on nucleosides such as guanosine have gained increasing attention due to their biocompatibility, good mechanical characteristics, tunable and reversible properties, and intrinsic self-healing capabilities. However, most existing formulations exhibit insufficient stability, biological activity, or printability. To address these limitations, we incorporated polydopamine (PDA) into guanosine-borate (GB) hydrogels and developed a PGB hydrogel with maximal PDA incorporation and good thixotropic and printability qualities. The resulting PGB hydrogels exhibited a well-defined nanofibrillar network, and we found that PDA incorporation increased the hydrogel's osteogenic activity while having no negative effect on mammalian cell survival or migration. In contrast, antimicrobial activity was observed against the Gram-positive bacteria Staphylococcus aureus and Staphylococcus epidermidis. Thus, our findings suggest that our PGB hydrogel represents a significantly improved candidate as a 3D-printed scaffold capable of sustaining living cells, which may be further functionalized by incorporating other bioactive molecules for enhanced tissue integration.
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Affiliation(s)
- Maria Merino-Gómez
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
| | - Javier Gil
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Department of Dentistry, Faculty of Dentistry, International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
| | - Roman A. Perez
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Correspondence: (R.A.P.); (M.G.-G.); Tel.: +34-935-042-000 (ext. 5826) (R.A.P. & M.G.-G.)
| | - Maria Godoy-Gallardo
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Correspondence: (R.A.P.); (M.G.-G.); Tel.: +34-935-042-000 (ext. 5826) (R.A.P. & M.G.-G.)
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Godoy-Gallardo M, Merino-Gómez M, Matiz LC, Mateos-Timoneda MA, Gil FJ, Perez RA. Nucleoside-Based Supramolecular Hydrogels: From Synthesis and Structural Properties to Biomedical and Tissue Engineering Applications. ACS Biomater Sci Eng 2023; 9:40-61. [PMID: 36524860 DOI: 10.1021/acsbiomaterials.2c01051] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Supramolecular hydrogels are of great interest in tissue scaffolding, diagnostics, and drug delivery due to their biocompatibility and stimuli-responsive properties. In particular, nucleosides are promising candidates as building blocks due to their manifold noncovalent interactions and ease of chemical modification. Significant progress in the field has been made over recent years to allow the use of nucleoside-based supramolecular hydrogels in the biomedical field, namely drug delivery and 3D bioprinting. For example, their long-term stability, printability, functionality, and bioactivity have been greatly improved by employing more than one gelator, incorporating different cations, including silver for antibacterial activity, or using additives such as boric acid or even biomolecules. This now permits their use as bioinks for 3D printing to produce cell-laden scaffolds with specified geometries and pore sizes as well as a homogeneous distribution of living cells and bioactive molecules. We have summarized the latest advances in nucleoside-based supramolecular hydrogels. Additionally, we discuss their synthesis, structural properties, and potential applications in tissue engineering and provide an outlook and future perspective on ongoing developments in the field.
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Affiliation(s)
- Maria Godoy-Gallardo
- Bioengineering Institute of Technology (BIT), Department of Basic Science, International University of Catalonia (UIC), Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - Maria Merino-Gómez
- Bioengineering Institute of Technology (BIT), Department of Basic Science, International University of Catalonia (UIC), Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - Luisamaria C Matiz
- Bioengineering Institute of Technology (BIT), Department of Basic Science, International University of Catalonia (UIC), Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - Miguel A Mateos-Timoneda
- Bioengineering Institute of Technology (BIT), Department of Basic Science, International University of Catalonia (UIC), Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - F Javier Gil
- Bioengineering Institute of Technology (BIT), Department of Basic Science, International University of Catalonia (UIC), Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain.,Department of Dentistry, Faculty of Dentistry, International University of Catalonia (UIC), Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - Roman A Perez
- Bioengineering Institute of Technology (BIT), Department of Basic Science, International University of Catalonia (UIC), Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
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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: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Walunj MB, Srivatsan SG. Heterocycle-modified 2'-Deoxyguanosine Nucleolipid Analogs Stabilize Guanosine Gels and Self-assemble to Form Green Fluorescent Gels. Chem Asian J 2021; 17:e202101163. [PMID: 34817121 DOI: 10.1002/asia.202101163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/22/2021] [Indexed: 11/08/2022]
Abstract
Nucleoside-lipid conjugates are very useful supramolecular building blocks to construct self-assembled architectures suited for biomedical and material applications. Such nucleoside derivatives can be further synthetically manipulated to endow additional functionalities that could augment the assembling process and impart interesting properties. Here, we report the design, synthesis and self-assembling process of multifunctional supramolecular nucleolipid synthons containing an environment-sensitive fluorescent guanine. The amphiphilic synthons are composed of an 8-(2-(benzofuran-2-yl)vinyl)-guanine core and alkyl chains attached to 3'-O and 5'-O-positions of 2'-deoxyguanosine. The 2-(benzofuran-2-yl)vinyl (BFV) moiety attached at the C8 position of the nucleobase adopted a syn conformation about the glycosidic bond, which facilitated the self-assembly process through the formation of a G-tetrad as the basic unit. While 3',5'-diacylated BFV-modified dG analog stabilized the guanosine hydrogel by hampering the crystallization process and imparted fluorescence, BFV-modified dGs containing longer alkyl chains formed a green fluorescent organogel, which transformed into a yellow fluorescent gel in the presence of a complementary non-fluorescent cytidine nucleolipid. The ability of the dG analog containing short alkyl chains to modulate the mechanical property of a gel, and interesting fluorescence properties and self-assembling behavior exhibited by the dG analogs containing long alkyl chains in response to heat and complementary base underscore the potential use of these new supramolecular synthons in material applications.
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Affiliation(s)
- Manisha B Walunj
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Seergazhi G Srivatsan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India
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Bhattacharyya T, Panda D, Dash J. Supramolecular Template-Directed In Situ Click Chemistry: A Bioinspired Approach to Synthesize G-Quadruplex DNA Ligands. Org Lett 2021; 23:3004-3009. [PMID: 33830771 DOI: 10.1021/acs.orglett.1c00685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The assembly of guanosine and boronic acids produces anionic hydrogels (G-B hydrogels) that mimic the topology of the DNA G-quadruplex. We herein demonstrate an unconventional approach of using the G-B hydrogel as a supramolecular template that assembles the irreversible formation of DNA G-quadruplex-selective 1,4-triazole ligands from a pool of alkyne-azide building blocks. These generated ligands could also stabilize and strengthen the gel assembly.
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Affiliation(s)
- Tanima Bhattacharyya
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Deepanjan Panda
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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12
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Yoneda JS, de Araujo DR, Sella F, Liguori GR, Liguori TTA, Moreira LFP, Spinozzi F, Mariani P, Itri R. Self-assembled guanosine-hydrogels for drug-delivery application: Structural and mechanical characterization, methylene blue loading and controlled release. Mater Sci Eng C Mater Biol Appl 2020; 121:111834. [PMID: 33579472 DOI: 10.1016/j.msec.2020.111834] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/09/2020] [Accepted: 12/20/2020] [Indexed: 12/13/2022]
Abstract
It is known that guanosine derivatives (G) self-assemble in water forming long, flexible, and interacting aggregates (the so-called G-quadruplexes): by modulating the quadruplex charges, e.g. simply using a mixture of guanosine 5'-monophosphate (GMP) and guanosine (Gua), multi-responsive, self-healing hydrogels can be obtained. In this paper, the potential application of G-hydrogels as drug delivery systems has been assessed. Hydrogels were prepared at different Gua:GMP molar ratios. The photosensitizer Methylene Blue and the pro-apoptotic protein cytochrome C were used as cargo molecules. Small angle x-ray scattering and atomic force microscopy experiments confirmed the presence of G-quadruplexes disposed in swollen matrices with different mesh-sizes. Rheology measurements showed that the Gua:GMP molar ratio leads to specific drug release mechanisms, as the gel strength is finely tuned by electrostatic repulsion and van der Waals attraction between G-quadruplexes. Noteworthy, the gel cohesion and the drug release were pH responsive. Swelling, self-healing and cell viability features were also investigated: the results qualify the Gua:GMP hydrogel as an excellent biomaterial that can entrap and deliver key biomolecules in a sustained and responsive release manner.
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Affiliation(s)
- Juliana S Yoneda
- Instituto de Fisica, Universidade de São Paulo, São Paulo, SP, Brazil.
| | | | - Fiorenza Sella
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Gabriel R Liguori
- Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Tácia T A Liguori
- Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Luiz Felipe P Moreira
- Instituto do Coração (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Francesco Spinozzi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Paolo Mariani
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Rosangela Itri
- Instituto de Fisica, Universidade de São Paulo, São Paulo, SP, Brazil.
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13
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Affiliation(s)
- Rosangela Itri
- Instituto de Fisica, Universidade de Sao Paulo, Rua do Matao, 1371, Sao Paulo, SP, 05508-090, Brazil.
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14
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Xiao S, Lee W, Chen F, Zavalij PY, Gutierrez O, Davis JT. Oxidation of 8-thioguanosine gives redox-responsive hydrogels and reveals intermediates in a desulfurization pathway. Chem Commun (Camb) 2020; 56:6981-6984. [PMID: 32436517 DOI: 10.1039/d0cc02926b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A disulfide made by oxidation of 8-thioguanosine is a supergelator. The hydrogels are redox-responsive, as they disassemble upon either reduction or oxidation of the S-S bond. We also identified this disulfide, and 2 other compounds, as intermediates in oxidative desulfurization of 8-thioG to guanosine.
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Affiliation(s)
- Songjun Xiao
- Department of Chemistry & Biochemistry, University of Maryland, College Park, MD 20742, USA.
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15
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Baldassarri EJ, Ortore MG, Spinozzi F, Round A, Ferrero C, Mariani P. K vs. Na Effects on the Self-Assembly of Guanosine 5'-Monophosphate: A Solution SAXS Structural Study +. Nanomaterials (Basel) 2020; 10:E629. [PMID: 32231081 PMCID: PMC7221663 DOI: 10.3390/nano10040629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/18/2020] [Accepted: 03/20/2020] [Indexed: 12/18/2022]
Abstract
The hierarchical process of guanosine (G) self-assembly, leading in aqueous solution and in the presence of metal cations to the formation of G-quadruplexes, represents an intriguing topic both for the biological correlation with telomerase activity and for the nano-technological applications, as demonstrated by the current measured in a quadruplex wire 100 nm long. Similar to G-rich DNA sequences and G-oligonucleotides, the guanosine 5'-monophosphate (GMP) self-aggregates in water to form quadruplexes. However, due to the absence of a covalent axial backbone, this system can be very useful to understand the chemical-physical conditions that govern the guanosine supramolecular aggregation. We have then investigated by in-solution Synchrotron Small Angle X-ray Scattering technique the role of different cations in promoting the quadruplex formation as a function of concentration and temperature. Results show how potassium, with its peculiar biological traits, favours the G-quadruplex elongation process in respect to other cations (Na + , but also NH 4 + and Li + ), determining the longest particles in solution. Moreover, the formation and the elongation of G-quadruplexes have been demonstrated to be controlled by both GMP concentration and excess cation content, even if they specifically contribute to these processes in different ways. The occurrence of condensed liquid crystalline phases was also detected, proving that excess cations play also unspecific effects on the effective charges on the G-quadruplex surface.
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Affiliation(s)
- Enrico Junior Baldassarri
- Marche Structural Biology Center, Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Maria Grazia Ortore
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Francesco Spinozzi
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Adam Round
- European XFEL, SPB/SFX Instrument, 22869 Schenefeld, Germany
| | - Claudio Ferrero
- European Synchrotron Radiation Facility-E.S.R.F., 38043 Grenoble, France
| | - Paolo Mariani
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
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16
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Pieraccini S, Campitiello M, Carducci F, Davis JT, Mariani P, Masiero S. Playing supramolecular dominoes with light: building and breaking a photoreversible G-quadruplex made from guanosine, boric acid and an azobenzene. Org Biomol Chem 2020; 17:2759-2769. [PMID: 30785179 DOI: 10.1039/c9ob00193j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Addition of azobenzene-derivative 1 in its E configuration to an aqueous solution containing various guanosine borate esters induces a helical G-quartet based self-organization, stabilized by intercalation of the dye. The process is driven, in a domino fashion, by the initial host-guest interaction between the dye and a specific guanosine borate diester, whose structure can be thus assigned. This inclusion complex templates the formation of G-quartets. The quartets, in turn, pile up to form a supramolecular G-quadruplex structure, in which other G species present in solution are progressively included. The G-quadruplex can be reversibly broken and reformed by photoisomerization of the dye. This hierarchical and photosensitive self-assembly is unprecedented for simple guanosine derivatives.
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Affiliation(s)
- Silvia Pieraccini
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna, v. S. Giacomo, 11-40126 Bologna, Italy.
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17
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Carducci F, Casadei BR, Mariani P, Barbosa LRS. X-Ray Characterization of Pharmaceutical and Cosmetic Lipidic Nanoparticles for Cutaneous Application. Curr Pharm Des 2019; 25:2364-2374. [PMID: 31584368 DOI: 10.2174/1381612825666190709210211] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/21/2019] [Indexed: 12/12/2022]
Abstract
Starting from the second half of the 1900s, the advent of nanotechnology in medicine has provoked a profound revolution in this area; at present, nanomedicine delivered a remarkably large set of research and clinically useful tools as diagnostic devices, contrast agents, analytical tools, physical therapy applications, and drugdelivery vehicles. Concerning nanoformulations for drug delivery, they are constituted by nanoparticles with dimensions lower than 1 μm, usually characterized by improved pharmacokinetics, taking advantage of specific targeting, and reduced side effects. The contributors to the present chapter are reviewing a range of papers related to the structural characterization of nanoformulations by X-ray diffraction techniques. The whole of the considered papers underlines the essential role that biophysical techniques have acquired as an essential prerequisite to understanding stability, bioavailability, and lipid, biopolymer, and drug organization in nanoformulations.
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Affiliation(s)
- Federica Carducci
- Dipartimento di Scienze della Vita e dell'Ambiente, Universita Politecnica delle Marche, Ancona, Italy
| | - Bruna Renata Casadei
- Departamento de Fisica Geral, Instituto de Fisica, Universidade de São Paulo, Sao Paulo, Brazil
| | - Paolo Mariani
- Dipartimento di Scienze della Vita e dell'Ambiente, Universita Politecnica delle Marche, Ancona, Italy
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18
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19
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Nava G, Carducci F, Itri R, Yoneda JS, Bellini T, Mariani P. Quadruplex knots as network nodes: nano-partitioning of guanosine derivates in supramolecular hydrogels. Soft Matter 2019; 15:2315-2318. [PMID: 30806419 DOI: 10.1039/c8sm02616e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Aqueous solutions of guanosine-5'-monophosphates (GMP) - known to form G-quadruplexes and liquid crystal phases - can be induced to turn into high water content gels by the addition of guanosine (Gua). By a combination of Light Scattering (LS) and AFM we show that Gua/GMP hydrogels are microscopically heterogeneous, formed by Gua-rich disordered microcoils of intertwined filaments ("knots") connected by GMP-rich long linear threads. The different thermal stability of knots and threads controls the gel transition.
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Affiliation(s)
- Giovanni Nava
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università di Milano, via Vanvitelli 32, 20129 Milano, Italy.
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20
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Zhang J, Li X, Sun X, Liu Y, Hao J, Tan Y, Song A. G-Quadruplex based hydrogels stabilized by a cationic polymer as an efficient adsorbent of picric acid. NEW J CHEM 2019. [DOI: 10.1039/c9nj03143j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Hydrogels based on G-quadruplexes (G-hydrogels) were prepared using guanosine 5′-monophosphate disodium salt, GMP, with a hyperbranched poly(ethylenimine), PEI, containing abundant –NH2 groups.
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Affiliation(s)
- Jin Zhang
- Key Laboratory of Colloids and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan 250100
- China
| | - Xiaoyang Li
- Key Laboratory of Colloids and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan 250100
- China
| | - Xiuping Sun
- Key Laboratory of Colloids and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan 250100
- China
| | - Yihan Liu
- Key Laboratory of Colloids and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan 250100
- China
| | - Jingcheng Hao
- Key Laboratory of Colloids and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan 250100
- China
| | - Yebang Tan
- Key Laboratory of Colloids and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan 250100
- China
| | - Aixin Song
- Key Laboratory of Colloids and Interface Chemistry (Shandong University)
- Ministry of Education
- Jinan 250100
- China
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21
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Xiao Q, Song F, Nie WC, Wang XL, Wang YZ. Self-complementary hydrogen-bond interactions of guanosine: a hub for constructing supra-amphiphilic polymers with controlled molecular structure and aggregate morphology. Soft Matter 2018; 15:102-108. [PMID: 30500047 DOI: 10.1039/c8sm02172d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A supra-amphiphilic polymer (SAP) with controlled molecular structures is constructed, in this work, via self-complementary hydrogen bonding of guanosine groups between a hydrophilic block, poly(N-isopropylacrylamide), and a hydrophobic block, poly(ε-caprolactone). By simply changing the mixing ratio of the guanosine-capped hydrophilic and hydrophobic blocks, a series of SAPs with tailored nanostructures are constructed, which can further self-assemble into different nano-aggregates in solution, including spheres, vesicles and large vesicle micelles. The thermo-induced phase transition of the hydrophilic block induces the fusion and aggregation of the nanoparticles into irregular particles upon heating, which further transform to large compound vesicles after cooling.
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Affiliation(s)
- Qian Xiao
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Fei Song
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Wu-Cheng Nie
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Xiu-Li Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
| | - Yu-Zhong Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China.
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22
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Wang S, Jiang H, Zhang L, Jiang J, Liu M. Enantioselective Activity of Hemin in Supramolecular Gels Formed by Co-Assembly with a Chiral Gelator. Chempluschem 2018; 83:1038-1043. [DOI: 10.1002/cplu.201800390] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Song Wang
- Beijing National Laboratory for Molecular Science; CAS Key Laboratory of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; No. 2 ZhongGuanCun BeiYiJie Beijing 100190 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Hejin Jiang
- Beijing National Laboratory for Molecular Science; CAS Key Laboratory of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; No. 2 ZhongGuanCun BeiYiJie Beijing 100190 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Li Zhang
- Beijing National Laboratory for Molecular Science; CAS Key Laboratory of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; No. 2 ZhongGuanCun BeiYiJie Beijing 100190 P.R. China
| | - Jian Jiang
- CAS Key Laboratory of Nanosystems and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; Division of Nanophotonics; National Center for Nanoscience and Technology (NCNST); No. 11 ZhongGuanCun BeiYiTiao Beijing 100190 P.R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science; CAS Key Laboratory of Colloid; Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; No. 2 ZhongGuanCun BeiYiJie Beijing 100190 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
- CAS Key Laboratory of Nanosystems and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; Division of Nanophotonics; National Center for Nanoscience and Technology (NCNST); No. 11 ZhongGuanCun BeiYiTiao Beijing 100190 P.R. China
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23
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Sun X, Li G, Yin Y, Zhang Y, Li H. Carbon quantum dot-based fluorescent vesicles and chiral hydrogels with biosurfactant and biocompatible small molecule. Soft Matter 2018; 14:6983-6993. [PMID: 29972201 DOI: 10.1039/c8sm01155a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In recent years, it is heartening to witness that carbon quantum dots (CQDs), a rising star in the family of carbon nanomaterials, have displayed tremendous applications in bioimaging, biosensing, drug delivery, optoelectronics, photovoltaics and photocatalysis. However, the investigations toward self-assembly of CQDs are still in their infancy. The participation of CQDs can bring additional functions to supramolecular self-assemblies, with photoluminescent property as the most exciting aspect. Here, we introduce CQDs into two types of classic colloidal systems containing low molecular weight surfactant and gelator to construct fluorescent vesicles and chiral hydrogels. The CQD-based vesicles were constructed through electrostatic interaction between the positively charged CQDs with peripherally substituted imidazolium cations and a negatively-charged biosurfactant, i.e., sodium deoxycholate (NaDC). The chiral hydrogels were prepared by increasing the concentration of NaDC and addition of a tripeptide (glutathione, GSH). It was found that both the hydrogels and corresponding xerogels are highly photoluminescent. A solid sensing system was prepared by coating a uniform layer of the hydrogel onto the silica gel plates by doctor blade technique followed by air-drying, which was then utilized to semiquantitatively detect Cu2+ in aqueous solutions.
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Affiliation(s)
- Xiaofeng Sun
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu Province 730000, China.
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