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Pradhan MK, Misra N, Sahala F, Pradhan NP, Srivastava A. Divergent self-assembly propensity of enantiomeric phenylalanine amphiphiles that undergo pH-induced nanofiber-to-nanoglobule conversion. SOFT MATTER 2024; 20:3602-3611. [PMID: 38576362 DOI: 10.1039/d4sm00117f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
This study presents the pathway diversity in the self-assembly of enantiomeric single phenylalanine derived amphiphiles (single F-PDAs), viz.L-NapF-EDA and D-NapF-EDA, that form supramolecular hydrogels at varied concentrations (≥1 mg mL-1 and ≥3 mg mL-1, respectively). By fitting the variable temperature circular dichroism (VT-CD) data to the isodesmic model, various thermodynamic parameters associated with their self-assembly, such as association constant (K), changes in enthalpy (ΔH), entropy (ΔS), and Gibbs free energy (ΔG), were extracted. The self-assembly of these single F-PDAs was found to be enthalpy-driven but entropically-disfavored. Although self-assembly of the D-isomer was slow, it also exhibited greater free energy of association than the L-isomer. Consequently, thermally and mechanically more robust self-assemblies were formed by the D-isomer than the L-isomer. We term these results as the "butterfly effect in self-assembly" wherein the difference in the stereochemical orientation of the residues at a single chiral center present in these molecules resulted in strong differences in the self-assembly propensity as well as in their thermal and mechanical stability. These single F-PDAs form helical nanofibers of opposite chirality upon self-assembly at basic pH (≥8) that produce intense CD signals. However, upon decreasing the pH, a gradual nanofiber-to-nanoglobular transformation was noticed due to protonation-induced structural changes in the PDAs.
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Affiliation(s)
- Manas Kumar Pradhan
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Nayanika Misra
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Fathima Sahala
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Nyaya Prakash Pradhan
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
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Tan T, Hou Y, Shi J, Wang B, Zhang Y. Biostable hydrogels consisting of hybrid β-sheet fibrils assembled by a pair of enantiomeric peptides. Mater Today Bio 2024; 25:100961. [PMID: 38304341 PMCID: PMC10831280 DOI: 10.1016/j.mtbio.2024.100961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/22/2023] [Accepted: 01/15/2024] [Indexed: 02/03/2024] Open
Abstract
The assembly of chiral peptides facilitates the formation of diverse supramolecular structures with unique physicochemical and biological properties. However, the effects of chirality on peptide assembly and resulting hydrogel properties remain underexplored. In this study, we systematically investigated the assembly propensity, morphology, and biostability of mixture of a pair of enantiomeric peptides LELCLALFLF (ECF-5) and DEDCDADFDF (ecf-5) at various ratios. Results indicate the development of β-sheet fibrils, ultimately leading to the formation of self-supporting hybrid hydrogels. The hydrogel formed at a ratio of 1:1 exhibits a significantly lower storage modulus (G') than of the ratios of 0:1, 1:3, 3:1 and 1:0 (nD/nL; same below). Kink-separated fragments of approximately 100 nm in length predominate at ratios of 1:3 and 3:1, compared with the smooth fibrils at other ratios, probably attributed to an alternating arrangement of the co-assembled and self-assembled peptide fragments. The introduction of ecf-5 to the hybrid hydrogels improves resistance to proteolytic digestion and maintains commendable biocompatibility in both MIN6 and HUVECs cells. These findings provide valuable insights into the development of hydrogels with tailored properties, positing them potential scaffolds for 3D cell culture and tissue engineering.
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Affiliation(s)
- Tingyuan Tan
- Research Institute of Interdisciplinary Sciences & School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, China
| | - Yangqian Hou
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Jiali Shi
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Biao Wang
- Research Institute of Interdisciplinary Sciences & School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, China
| | - Yi Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
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Li L, Zheng R, Sun R. Understanding multicomponent low molecular weight gels from gelators to networks. J Adv Res 2024:S2090-1232(24)00126-7. [PMID: 38570015 DOI: 10.1016/j.jare.2024.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 02/11/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND The construction of gels from low molecular weight gelators (LMWG) has been extensively studied in the fields of bio-nanotechnology and other fields. However, the understanding gaps still prevent the prediction of LMWG from the full design of those gel systems. Gels with multicomponent become even more complicated because of the multiple interference effects coexist in the composite gel systems. AIM OF REVIEW This review emphasizes systems view on the understanding of multicomponent low molecular weight gels (MLMWGs), and summarizes recent progress on the construction of desired networks of MLMWGs, including self-sorting and co-assembly, as well as the challenges and approaches to understanding MLMWGs, with the hope that the opportunities from natural products and peptides can speed up the understanding process and close the gaps between the design and prediction of structures. KEY SCIENTIFIC CONCEPTS OF REVIEW This review is focused on three key concepts. Firstly, understanding the complicated multicomponent gels systems requires a systems perspective on MLMWGs. Secondly, several protocols can be applied to control self-sorting and co-assembly behaviors in those multicomponent gels system, including the certain complementary structures, chirality inducing and dynamic control. Thirdly, the discussion is anchored in challenges and strategies of understanding MLMWGs, and some examples are provided for the understanding of multicomponent gels constructed from small natural products and subtle designed short peptides.
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Affiliation(s)
- Liangchun Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Renlin Zheng
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Rongqin Sun
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
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Yang Z, Jaiswal A, Yin Q, Lin X, Liu L, Li J, Liu X, Xu Z, Li JJ, Yong KT. Chiral nanomaterials in tissue engineering. NANOSCALE 2024; 16:5014-5041. [PMID: 38323627 DOI: 10.1039/d3nr05003c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Addressing significant medical challenges arising from tissue damage and organ failure, the field of tissue engineering has evolved to provide revolutionary approaches for regenerating functional tissues and organs. This involves employing various techniques, including the development and application of novel nanomaterials. Among them, chiral nanomaterials comprising non-superimposable nanostructures with their mirror images have recently emerged as innovative biomaterial candidates to guide tissue regeneration due to their unique characteristics. Chiral nanomaterials including chiral fibre supramolecular hydrogels, polymer-based chiral materials, self-assembling peptides, chiral-patterned surfaces, and the recently developed intrinsically chiroptical nanoparticles have demonstrated remarkable ability to regulate biological processes through routes such as enantioselective catalysis and enhanced antibacterial activity. Despite several recent reviews on chiral nanomaterials, limited attention has been given to the specific potential of these materials in facilitating tissue regeneration processes. Thus, this timely review aims to fill this gap by exploring the fundamental characteristics of chiral nanomaterials, including their chiroptical activities and analytical techniques. Also, the recent advancements in incorporating these materials in tissue engineering applications are highlighted. The review concludes by critically discussing the outlook of utilizing chiral nanomaterials in guiding future strategies for tissue engineering design.
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Affiliation(s)
- Zhenxu Yang
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
- The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
- The Biophotonics and Mechanobioengineering Laboratory, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Arun Jaiswal
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
- The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
- The Biophotonics and Mechanobioengineering Laboratory, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Qiankun Yin
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
- The Biophotonics and Mechanobioengineering Laboratory, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Xiaoqi Lin
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Lu Liu
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Jiarong Li
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Xiaochen Liu
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
- The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
- The Biophotonics and Mechanobioengineering Laboratory, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Zhejun Xu
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
- The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
- The Biophotonics and Mechanobioengineering Laboratory, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Jiao Jiao Li
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
- The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Ken-Tye Yong
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
- The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
- The Biophotonics and Mechanobioengineering Laboratory, Faculty of Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
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Sudhakaran Jayabhavan S, Kuppadakkath G, Damodaran KK. The Role of Functional Groups in Tuning the Self-Assembly Modes and Physical Properties of Multicomponent Gels. Chempluschem 2023; 88:e202300302. [PMID: 37407430 DOI: 10.1002/cplu.202300302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/07/2023]
Abstract
We have analyzed the nature and role of functional groups on the self-assembly modes and the physical properties of multicomponent gels with structurally similar individual components. The gelation properties of individual and mixed enantiomeric compounds of biphenyl bis-(amides) of alanine (BPA) or phenylalanine (BPP) methyl ester were analyzed in various solvent/solvent mixtures. Multicomponent gels were formed by mixing the enantiomeric BPP compounds at a lower concentration, but a higher concentration was required for mixed alanine-based BPA gels. The comparison of the mechanical strength of the individual and mixed BPP compounds indicated that the mixed BPP gels displayed enhanced mechanical strength (∼2-fold increase) in p-xylene, but a weaker gel was observed in DMSO/water. However, a reverse trend was observed for BPA gels, indicating the role of functional groups in the gel network formation. X-ray diffraction analysis of the gelator and the xerogels in the solid state confirmed the formation of co-assembled networks in mixed enantiomeric gels. The stability of the gels towards anions was evaluated by analyzing the anion induced stimuli-responsive properties. These results indicate the effective modeling of the functional groups of the individual components could lead to multicomponent gels with tunable properties.
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Affiliation(s)
| | | | - Krishna K Damodaran
- Department of Chemistry, University of Iceland, Dunhagi 3, 107, Reykjavík, Iceland
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Caimi F, Zanchetta G. Twisted Structures in Natural and Bioinspired Molecules: Self-Assembly and Propagation of Chirality Across Multiple Length Scales. ACS OMEGA 2023; 8:17350-17361. [PMID: 37251126 PMCID: PMC10210192 DOI: 10.1021/acsomega.3c01822] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 04/27/2023] [Indexed: 05/31/2023]
Abstract
Several biomolecules can form dynamic aggregates in water, whose nanometric structures often reflect the chirality of the monomers in unexpected ways. Their twisted organization can be further propagated to the mesoscale, in chiral liquid crystalline phases, and even to the macroscale, where chiral, layered architectures contribute to the chromatic and mechanical properties of various plant, insect, and animal tissues. At all scales, the resulting organization is determined by a subtle balance among chiral and nonchiral interactions, whose understanding and fine-tuning is fundamental also for applications. We present recent advances in the chiral self-assembly and mesoscale ordering of biological and bioinspired molecules in water, focusing on systems based on nucleic acids or related aromatic molecules, oligopeptides, and their hybrid stuctures. We highlight the common features and key mechanisms governing this wide range of phenomena, together with novel characterization approaches.
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He H, He J, Zheng K, Ma M, Shi Y, Chen S, Wang X. Fantastic supramolecular chiral self-assembly of POSS based dendrimers: from helical nano-fibers to nano-toroids and loofah-like superstructures. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Chen Y, Hao Y, Mensah A, Lv P, Wei Q. Bio-inspired hydrogels with fibrous structure: A review on design and biomedical applications. BIOMATERIALS ADVANCES 2022; 136:212799. [PMID: 35929334 DOI: 10.1016/j.bioadv.2022.212799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 10/18/2022]
Abstract
Numerous tissues in the human body have fibrous structures, including the extracellular matrix, muscles, and heart, which perform critical biological functions and have exceptional mechanical strength. Due to their high-water content, softness, biocompatibility and elastic nature, hydrogels resemble biological tissues. Traditional hydrogels, on the other hand, have weak mechanical properties and lack tissue-like fibrous structures, limiting their potential applications. Thus, bio-inspired hydrogels with fibrous architectures have piqued the curiosity of biomedical researchers. Here, we review fabrication strategies for fibrous hydrogels and their recent progress in the biomedical fields of wound dressings, drug delivery, tissue engineering scaffolds and bioadhesives. Challenges and future perspectives are also discussed.
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Affiliation(s)
- Yajun Chen
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Yi Hao
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Alfred Mensah
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Pengfei Lv
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Qufu Wei
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China.
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