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Kashyap S, Pal VK, Mohanty S, Roy S. Exploring a Solvent Dependent Strategy to Control Self-Assembling Behavior and Cellular Interaction in Laminin-Mimetic Short Peptide based Supramolecular Hydrogels. Chembiochem 2024; 25:e202300835. [PMID: 38390634 DOI: 10.1002/cbic.202300835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Self-assembled hydrogels, fabricated through diverse non-covalent interactions, have been extensively studied in regenerative medicines. Inspired from bioactive functional motifs of ECM protein, short peptide sequences have shown remarkable abilities to replicate the intrinsic features of the natural extracellular milieu. In this direction, we have fabricated two short hydrophobic bioactive sequences derived from the laminin protein i. e., IKVAV and YIGSR. Based on the substantial hydrophobicity of these peptides, we selected a co-solvent approach as a suitable gelation technique that included different concentrations of DMSO as an organic phase along with an aqueous solution containing 0.1 % TFA. These hydrophobic laminin-based bioactive peptides with limited solubility in aqueous physiological environment showed significantly enhanced solubility with higher DMSO content in water. The enhanced solubility resulted in extensive intermolecular interactions that led to the formation of hydrogels with a higher-order entangled network along with improved mechanical properties. Interestingly, by simply modulating DMSO content, highly tunable gels were accessed in the same gelator domain that displayed differential physicochemical properties. Further, the cellular studies substantiated the potential of these laminin-derived hydrogels in enhancing cell-matrix interactions, thereby reinforcing their applications in tissue engineering.
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Affiliation(s)
- Shambhavi Kashyap
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City Mohali, Punjab,140306, India
| | - Vijay Kumar Pal
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City Mohali, Punjab,140306, India
| | - Sweta Mohanty
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City Mohali, Punjab,140306, India
| | - Sangita Roy
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City Mohali, Punjab,140306, India
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2
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Mukherjee S, Reddy SMM, Shanmugam G. A bio-inspired silkworm 3D cocoon-like hierarchical self-assembled structure from π-conjugated natural aromatic amino acids. SOFT MATTER 2024; 20:1834-1845. [PMID: 38314911 DOI: 10.1039/d3sm01746j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
The formation of spontaneous 3D self-assembled hierarchical structures from 1D nanofibers is a significant breakthrough in materials science. Overcoming the major challenges associated with developing these 3D structures, such as uncontrolled self-assembly, complex procedures, and machinery, has been a formidable task. However, the current discovery reveals that simple π-system (fluorenyl)-functionalized natural aromatic amino acids, phenylalanine (Fmoc-F) and tyrosine (Fmoc-Y), can form bio-inspired 3D cocoon-like structures. These structures are composed of entangled 1D nanofibers created through supramolecular self-assembly using a straightforward one-step process of solvent casting. The self-assembly process relies on π-π stacking of the fluorenyl (π-system) moieties and intermolecular hydrogen bonding between urethane amide groups. The cocoon-like structures are versatile and independent of concentration, temperature, and humidity, making them suitable for various applications. This discovery has profound implications for materials science and the developed advanced biomaterials, such as Fmoc-F and Fmoc-Y, can serve as flexible foundational components for constructing 3D fiber-based structures.
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Affiliation(s)
- Smriti Mukherjee
- Organic & Bioorganic Chemistry Laboratory, Council of Scientific and Industrial Research (CSIR), Central Leather Research Institute (CLRI) (CSIR-CLRI), Adyar, Chennai, 600020, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Samala Murali Mohan Reddy
- Organic & Bioorganic Chemistry Laboratory, Council of Scientific and Industrial Research (CSIR), Central Leather Research Institute (CLRI) (CSIR-CLRI), Adyar, Chennai, 600020, India.
| | - Ganesh Shanmugam
- Organic & Bioorganic Chemistry Laboratory, Council of Scientific and Industrial Research (CSIR), Central Leather Research Institute (CLRI) (CSIR-CLRI), Adyar, Chennai, 600020, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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3
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Kuila S, Dey S, Singh P, Shrivastava A, Nanda J. Phenylalanine-based fibrillar systems. Chem Commun (Camb) 2023; 59:14509-14523. [PMID: 37987167 DOI: 10.1039/d3cc04138g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Phenylketonuria (PKU) is an inborn metabolic disorder characterized by excess accumulation of phenylalanine (Phe) and its fibril formation, resulting in progressive intellectual disability. Several research groups have approached from various directions to understand the formation of toxic amyloid fibrils from the essential amino acid Phe. Different parameters like the nature of the solvent, pH, Phe concentration, temperature, etc. influence the fibril formation kinetics. In this article, we have summarized all major findings regarding the formation of Phe-based fibrils in aqueous and organic media and discussed how non-covalent interactions are involved in the self-assembly process using spectroscopic and microscopic techniques. The toxicity of Phe-based fibrils is compared with other neurodegenerative peptides. It is noted that the Phe-based fibrils can also induce various globular proteins into toxic fibrils. Later, we discuss the different approaches to inhibit fibril formation and reduce its toxicity. The presence of polyphenolic compounds, drugs, amino acids, nanoparticles, metal ions, crown ethers, and others showed a remarkable inhibitory effect on fibril formation. To the best of our knowledge, this is the first-ever etymological analysis of the Phe-fibrillar system and its inhibition to create a strong database against PKU.
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Affiliation(s)
- Soumen Kuila
- Department of Chemistry, University of North Bengal, Raja Rammohanpur, Siliguri 734013, West Bengal, India.
| | - Sukantha Dey
- Department of Chemistry, University of North Bengal, Raja Rammohanpur, Siliguri 734013, West Bengal, India.
| | - Pijush Singh
- Department of Chemistry, University of North Bengal, Raja Rammohanpur, Siliguri 734013, West Bengal, India.
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India
| | - Akash Shrivastava
- Department of Chemistry, University of North Bengal, Raja Rammohanpur, Siliguri 734013, West Bengal, India.
| | - Jayanta Nanda
- Department of Chemistry, University of North Bengal, Raja Rammohanpur, Siliguri 734013, West Bengal, India.
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4
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Yilmazer S, Schwaller D, Mésini PJ. Beyond Sol-Gel: Molecular Gels with Different Transitions. Gels 2023; 9:gels9040273. [PMID: 37102885 PMCID: PMC10137434 DOI: 10.3390/gels9040273] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
The existence of sol–gel transitions is one of the most manifest properties of molecular gels. These transitions reflect their nature since they correspond to the association or dissociation of low weight molecules through non-covalent interactions to form the network constitutive of the gel. Most described molecular gels undergo only one gel-to-sol transition upon heating, and the reverse sol-to-gel transition upon cooling. It has been long observed that different conditions of formation could lead to gels with different morphologies, and that gels can undergo a transition from gel to crystals. However, more recent publications report molecular gels which exhibit additional transitions, for instance gel-to-gel transitions. This review surveys the molecular gels for which, in addition to sol–gel transitions, transitions of different nature have been reported: gel-to-gel transitions, gel-to-crystal transition, liquid–liquid phase separations, eutectic transformations, and synereses.
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5
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Tikhonova T, Cohen-Gerassi D, Arnon ZA, Efremov Y, Timashev P, Adler-Abramovich L, Shirshin EA. Tunable Self-Assembled Peptide Hydrogel Sensor for Pharma Cold Supply Chain. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55392-55401. [PMID: 36475602 PMCID: PMC9782340 DOI: 10.1021/acsami.2c17609] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Defrost sensors are a crucial element for proper functioning of the pharmaceutical cold chain. In this paper, the self-assembled peptide-based hydrogels were used to construct a sensitive defrost sensor for the transportation and storage of medications and biomaterials. The turbidity of the peptide hydrogel was employed as a marker of the temperature regime. The gelation kinetics under different conditions was studied to detect various stages of hydrogel structural transitions aimed at tuning the system properties. The developed sensor can be stored at room temperature for a long period, irreversibly indicates whether the product has been thawed, and can be adjusted to a specific temperature range and detection time.
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Affiliation(s)
- Tatiana
N. Tikhonova
- Department
of Physics, M.V. Lomonosov Moscow State
University, Leninskie gory 1/2, Moscow119991, Russia
- SBIH
Vorohobov’s City Clinical Hospital No. 67 MHD Moscow, 2/44 Salam Adil St., Moscow123423, Russia
| | - Dana Cohen-Gerassi
- Department
of Oral Biology, The Goldschleger School of Dental Medicine, Sackler
Faculty of Medicine, The Center for Nanoscience and Nanotechnology,
The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv69978, Israel
| | - Zohar A. Arnon
- Department
of Oral Biology, The Goldschleger School of Dental Medicine, Sackler
Faculty of Medicine, The Center for Nanoscience and Nanotechnology,
The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv69978, Israel
| | - Yuri Efremov
- World-Class
Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University 8-2, Trubetskaya St., Moscow119991, Russia
- Institute
for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., Moscow119991, Russia
| | - Peter Timashev
- World-Class
Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University 8-2, Trubetskaya St., Moscow119991, Russia
- Institute
for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., Moscow119991, Russia
| | - Lihi Adler-Abramovich
- Department
of Oral Biology, The Goldschleger School of Dental Medicine, Sackler
Faculty of Medicine, The Center for Nanoscience and Nanotechnology,
The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv69978, Israel
| | - Evgeny A. Shirshin
- Department
of Physics, M.V. Lomonosov Moscow State
University, Leninskie gory 1/2, Moscow119991, Russia
- World-Class
Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University 8-2, Trubetskaya St., Moscow119991, Russia
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6
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Savage P, Gao S, Esposto J, Adhikari B, Zabik N, Kraatz HB, Eichhorn SH, Martic-Milne S. Self-assembly of N-, C- and N-/C-terminated Val-and Phe-amino acid side chains of naphthalene. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Abraham BL, Mensah SG, Gwinnell BR, Nilsson BL. Side-chain halogen effects on self-assembly and hydrogelation of cationic phenylalanine derivatives. SOFT MATTER 2022; 18:5999-6008. [PMID: 35920399 DOI: 10.1039/d2sm00713d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Low molecular weight (LMW) supramolecular hydrogels have great potential as next-generation biomaterials for drug delivery, tissue engineering, and regenerative medicine. The design of LMW gelators is complicated by the lack of understanding regarding how the chemical structure of the gelator correlates to self-assembly potential and emergent hydrogel material properties. The fluorenylmethyloxycarbonyl-phenylalanine (Fmoc-Phe) motif is a privileged scaffold that is prone to undergo self-assembly into self-supporting hydrogel networks. Cationic Fmoc-Phe-DAP derivatives modified with diaminopropane (DAP) at the C-terminus have been developed that self-assemble into hydrogel networks in aqueous solutions of sufficient ionic strength. We report herein the impact of side-chain halogenation on the self-assembly and hydrogelation properties of Fmoc-Phe-DAP derivatives. A systematic study of the self-assembly and hydrogelation of monohalogenated Fmoc-Phe-DAP derivatives with F, Cl, or Br atoms in the ortho, meta, or para positions of the phenyl side chain reveal significant differences in self-assembly and gelation potential, nanoscale assembly morphology, and hydrogel viscoelastic properties as a function of halogen identity and substitution position. These results demonstrate the profound impact that subtle changes to the chemical scaffold can have on the behavior of LMW supramolecular gelators and illustrate the ongoing difficulty of predicting the emergent self-assembly and hydrogelation behavior of LMW gelators that differ even modestly in chemical structure.
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Affiliation(s)
- Brittany L Abraham
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
| | - Samantha G Mensah
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
| | | | - Bradley L Nilsson
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
- Materials Science Program, University of Rochester, Rochester, NY 14627, USA
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8
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Shintani Y, Ohtomi T, Shibata A, Kitamura Y, Hirosawa KM, Suzuki KGN, Ikeda M. Formation of Supramolecular Nanostructures through in Situ Self‐Assembly and Post‐Assembly Modification of a Biocatalytically Constructed Dipeptide Hydrazide**. Chemistry 2022; 28:e202104421. [DOI: 10.1002/chem.202104421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Indexed: 12/15/2022]
Affiliation(s)
- Yuki Shintani
- Department of Life Science and Chemistry Graduate School of Natural Science and Technology Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Taku Ohtomi
- Department of Life Science and Chemistry Graduate School of Natural Science and Technology Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Aya Shibata
- Department of Life Science and Chemistry Graduate School of Natural Science and Technology Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Yoshiaki Kitamura
- Department of Life Science and Chemistry Graduate School of Natural Science and Technology Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Koichiro M. Hirosawa
- Institute for Glyco-core Research (iGCORE) Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Kenichi G. N. Suzuki
- Institute for Glyco-core Research (iGCORE) Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Masato Ikeda
- Department of Life Science and Chemistry Graduate School of Natural Science and Technology Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Institute for Glyco-core Research (iGCORE) Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- United Graduate School of Drug Discovery and Medical Information Sciences Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Institute of Nano-Life-Systems Institutes of Innovation for Future Society Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
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9
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Aviv M, Cohen-Gerassi D, Orr AA, Misra R, Arnon ZA, Shimon LJW, Shacham-Diamand Y, Tamamis P, Adler-Abramovich L. Modification of a Single Atom Affects the Physical Properties of Double Fluorinated Fmoc-Phe Derivatives. Int J Mol Sci 2021; 22:ijms22179634. [PMID: 34502542 PMCID: PMC8431810 DOI: 10.3390/ijms22179634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 11/16/2022] Open
Abstract
Supramolecular hydrogels formed by the self-assembly of amino-acid based gelators are receiving increasing attention from the fields of biomedicine and material science. Self-assembled systems exhibit well-ordered functional architectures and unique physicochemical properties. However, the control over the kinetics and mechanical properties of the end-products remains puzzling. A minimal alteration of the chemical environment could cause a significant impact. In this context, we report the effects of modifying the position of a single atom on the properties and kinetics of the self-assembly process. A combination of experimental and computational methods, used to investigate double-fluorinated Fmoc-Phe derivatives, Fmoc-3,4F-Phe and Fmoc-3,5F-Phe, reveals the unique effects of modifying the position of a single fluorine on the self-assembly process, and the physical properties of the product. The presence of significant physical and morphological differences between the two derivatives was verified by molecular-dynamics simulations. Analysis of the spontaneous phase-transition of both building blocks, as well as crystal X-ray diffraction to determine the molecular structure of Fmoc-3,4F-Phe, are in good agreement with known changes in the Phe fluorination pattern and highlight the effect of a single atom position on the self-assembly process. These findings prove that fluorination is an effective strategy to influence supramolecular organization on the nanoscale. Moreover, we believe that a deep understanding of the self-assembly process may provide fundamental insights that will facilitate the development of optimal amino-acid-based low-molecular-weight hydrogelators for a wide range of applications.
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Affiliation(s)
- Moran Aviv
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.A.); (D.C.-G.); (R.M.); (Z.A.A.)
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 6997801, Israel
- The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
- School of Mechanical Engineering, Afeka Tel Aviv Academic College of Engineering, Tel Aviv 6910717, Israel
| | - Dana Cohen-Gerassi
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.A.); (D.C.-G.); (R.M.); (Z.A.A.)
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 6997801, Israel
- The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
- Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel;
| | - Asuka A. Orr
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA; (A.A.O.); (P.T.)
| | - Rajkumar Misra
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.A.); (D.C.-G.); (R.M.); (Z.A.A.)
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 6997801, Israel
- The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Zohar A. Arnon
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.A.); (D.C.-G.); (R.M.); (Z.A.A.)
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 6997801, Israel
- The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Linda J. W. Shimon
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot 76132701, Israel;
| | - Yosi Shacham-Diamand
- Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel;
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- TAU/TiET Food Security Center of Excellence (T2FSCoE), Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Phanourios Tamamis
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA; (A.A.O.); (P.T.)
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843-3003, USA
| | - Lihi Adler-Abramovich
- Department of Oral Biology, The Goldschleger School of Dental Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (M.A.); (D.C.-G.); (R.M.); (Z.A.A.)
- The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 6997801, Israel
- The Center for the Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel
- Correspondence:
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10
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Giuri D, Marshall LJ, Wilson C, Seddon A, Adams DJ. Understanding gel-to-crystal transitions in supramolecular gels. SOFT MATTER 2021; 17:7221-7226. [PMID: 34286796 DOI: 10.1039/d1sm00770j] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Most supramolecular gels are stable or assumed to be stable over time, and aging effects are often not studied. However, some gels do show clear changes on aging, and a small number of systems exhibit gel-to-crystal transitions. In these cases, crystals form over time, typically at the expense of the network underpinning the gel; this leads to the gel falling apart. These systems are rare, and little is known about how these gel-to-crystal transitions occur. Here, we use a range of techniques to understand in detail a gel-to-crystal transition for a specific functionalised dipeptide based gelator. We show that the gel-to-crystal transition depends on the final pH of the medium which we control by varying the amount of glucon-δ-lactone (GdL) added. In the gel phase, at low concentrations of GdL, and at early time points with high concentrations of GdL, we are able to show the nanometre scale dimensions of the self-assembled fibre using SAXS; however there is no evidence of molecular ordering of the gel fibres in the WAXS. At low concentrations of GdL, these self-assembled fibres stiffen with time but do not crystallise over the timescale of the SAXS experiment. At high concentrations of GdL, the fibres are already stiffened, and then, as the pH drops further, give way to the presence of crystals which appear to grow preferentially along the direction of the fibre axis. We definitively show therefore that the gel and crystal phase are not the same. Our work shows that many assumptions in the literature are incorrect. Finally, we also show that the sample holder geometry is an important parameter for these experiments, with the rate of crystallisation depending on the holder in which the experiment is carried out.
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Affiliation(s)
- Demetra Giuri
- Dipartimento di Chimica Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Selmi, 2, 40126, Bologna, Italy
| | - Libby J Marshall
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Claire Wilson
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Annela Seddon
- School of Physics, HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, UK. and Bristol Centre for Functional Nanomaterials, HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, UK
| | - Dave J Adams
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
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11
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El Hamoui O, Gaudin K, Battu S, Barthélémy P, Lespes G, Alies B. Self-Assembly of Nucleoside-Derived Low-Molecular-Weight Gelators: A Thermodynamics and Kinetics Study on Different Length Scales. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:297-310. [PMID: 33350837 DOI: 10.1021/acs.langmuir.0c02894] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Biocompatible materials are of paramount importance in numerous fields. Unlike chemically bridge polymer-based hydrogels, low-molecular-weight gelators can form a reversible hydrogel as their structures rely on noncovalent interaction. Although many applications with this type of hydrogel can be envisioned, we still lack their understanding due to the complexity of their self-assembly process and the difficulty in predicting their behaviors (transition temperature, gelation kinetics, the impact of solvent, etc.). In this study, we extend the investigations of a series of nucleoside-derived gelators, which only differ by subtle chemical modifications. Using a multitechnique approach, we determined their thermodynamic and kinetic features on various scale (molecular to macro) in different conditions. Monitored at the supramolecular level by circular dichroism as well as macroscopic scales by rheology and turbidimetry, we found out that the sol-gel and gel-sol transitions are greatly dependent on the concentration and on the mechanisms that are probed. Self-assembly kinetics depends on hydrogel molecules and is modulated by temperature and solvent. This fundamental study provides insight on the impact of some parameters on the gelation process, such as concentration, cooling rate, and the nature of the solvent.
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Affiliation(s)
- Omar El Hamoui
- Université de Bordeaux, INSERM U1212, UMR CNRS 5320, F-33076 Bordeaux, France
- Université de Pau et des Pays de l'Adour (E2S/UPPA) CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM), UMR 5254, 2 Avenue Pierre Angot, 64053 Pau Cedex, France
| | - Karen Gaudin
- Université de Bordeaux, INSERM U1212, UMR CNRS 5320, F-33076 Bordeaux, France
| | - Serge Battu
- EA3842- CAPTuR, GEIST, Faculté de Médecine, Université de Limoges, 2 rue du Dr Marcland, 87025 Limoges Cedex, France
| | - Philippe Barthélémy
- Université de Bordeaux, INSERM U1212, UMR CNRS 5320, F-33076 Bordeaux, France
| | - Gaëtane Lespes
- Université de Pau et des Pays de l'Adour (E2S/UPPA) CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM), UMR 5254, 2 Avenue Pierre Angot, 64053 Pau Cedex, France
| | - Bruno Alies
- Université de Bordeaux, INSERM U1212, UMR CNRS 5320, F-33076 Bordeaux, France
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12
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Quigley E, Johnson J, Liyanage W, Nilsson BL. Impact of gelation method on thixotropic properties of phenylalanine-derived supramolecular hydrogels. SOFT MATTER 2020; 16:10158-10168. [PMID: 33035281 DOI: 10.1039/d0sm01217c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Supramolecular hydrogels formed by noncovalent self-assembly of low molecular weight (LMW) agents are promising next-generation biomaterials. Thixotropic shear response and mechanical stability are two emergent properties of hydrogels that are critical for biomedical applications including drug delivery and tissue engineering in which injection of the hydrogel will be necessary. Herein, we demonstrate that the emergent thixotropic properties of supramolecular phenylalanine-derived hydrogels are dependent on the conditions in which they are formulated. Specifically, hydrogels formed from fluorenylmethoxycarbonyl (Fmoc) modified phenylalanine derivatives, 3-fluorophenylalanine (Fmoc-3F-Phe) and pentafluorophenylalanine (Fmoc-F5-Phe), were characterized as a function of gelation conditions to examine how shear response and mechanical stability properties correlate to mode of gelation. Two distinct methods of gelation were compared. First, spontaneous self-assembly and gelation was triggered by a solvent exchange method in which a concentrated solution of the gelator in dimethylsulfoxide was diluted in water. Second, gelation was promoted by dissolution of the gelator in water at basic pH followed by gradual pH adjustment from basic to mildly acidic by the hydrolysis of glucono-delta-lactone. Hydrogels formed under solvent exchange conditions were mechanically unstable and poorly shear-responsive whereas hydrogels formed by gradual acidification were temporally stable and had highly shear-responsive viscoelastic character. These studies confirm that gelation environment and mechanism have a significant influence on the emergent properties of supramolecular hydrogels and offer insight into how gelation conditions can be used to tune hydrogel properties for specific applications.
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Affiliation(s)
- Elena Quigley
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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13
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Gayen K, Nandi N, Das KS, Hermida-Merino D, Hamley IW, Banerjee A. The aging effect on the enhancement of thermal stability, mechanical stiffness and fluorescence properties of histidine-appended naphthalenediimide based two-component hydrogels. SOFT MATTER 2020; 16:10106-10114. [PMID: 32716462 DOI: 10.1039/d0sm00468e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A histidine attached naphthalenediimide (NDI)-containing amphiphilic molecule (NDIP) self-assembles into nanotubes in aqueous solution at pH 6.6 as revealed by high-resolution transmission electron microscopy studies. This histidine-appended NDI forms a two-component hydrogel in the presence of tartaric acid at a molar ratio of 1 : 2. A morphological transformation was observed from a nanotube structure in the non-gel aggregated state of histidine appended NDI to interconnected cross-linked nanofibers of the two-component hydrogel in the presence of tartaric acid. Interestingly, the gel exhibits an unusual behavior upon aging compared to the fresh gel. It is found that the thermal stability and gel stiffness increase very significantly upon aging. Another important feature noted is that the very weak fluorescence of the fresh gel is transformed into bright greenish fluorescence upon aging. These results suggest that intermolecular interactions among the gelator molecules and tartaric acid in the gel phase slowly increase with time to form a mechanically very stiff and thermally robust gel.
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Affiliation(s)
- Kousik Gayen
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India.
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14
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Chakravarthy RD, Mohammed M, Lin HC. Enzyme Instructed Self-assembly of Naphthalimide-dipeptide: Spontaneous Transformation from Nanosphere to Nanotubular Structures that Induces Hydrogelation. Chem Asian J 2020; 15:2696-2705. [PMID: 32652888 DOI: 10.1002/asia.202000575] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/06/2020] [Indexed: 11/08/2022]
Abstract
Understanding the structure-morphology relationships of self-assembled nanostructures is crucial for developing materials with the desired chemical and biological functions. Here, phosphate-based naphthalimide (NI) derivatives have been developed for the first time to study the enzyme-instructed self-assembly process. Self-assembly of simple amino acid derivative NI-Yp resulted in non-specific amorphous aggregates in the presence of alkaline phosphatase enzyme. On the other hand, NI-FYp dipeptide forms spherical nanoparticles under aqueous conditions which slowly transformed into partially unzipped nanotubular structures during the enzymatic catalytic process through multiple stages which subsequently resulted in hydrogelation. The self-assembly is driven by the formation of β-sheet type structures stabilized by offset aromatic stacking of NI core and hydrogen bonding interactions which is confirmed with PXRD, Congo-red staining and molecular mechanical calculations. We propose a mechanism for the self-assembly process based on TEM and spectroscopic data. The nanotubular structures of NI-FYp precursor exhibited higher cytotoxicity to human breast cancer cells and human cervical cancer cells when compared to the nanofiber structures of the similar Fmoc-derivative. Overall this study provides a new understanding of the supramolecular self-assembly of small-molecular-weight hydrogelators.
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Affiliation(s)
- Rajan Deepan Chakravarthy
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, 300, Republic of China
| | - Mohiuddin Mohammed
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, 300, Republic of China
| | - Hsin-Chieh Lin
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, 300, Republic of China
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15
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Abraham BL, Toriki ES, Tucker NJ, Nilsson BL. Electrostatic interactions regulate the release of small molecules from supramolecular hydrogels. J Mater Chem B 2020; 8:6366-6377. [PMID: 32596699 PMCID: PMC7429908 DOI: 10.1039/d0tb01157f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Supramolecular hydrogels have great potential as biomaterials for sustained delivery of therapeutics. While peptide-based supramolecular hydrogels have been developed that show promise for drug delivery applications, the high cost of production has limited their widespread adoption. Low molecular weight (LMW) supramolecular hydrogels are emerging as attractive and inexpensive alternatives to peptide-based hydrogels. We recently reported novel cationic fluorenylmethyloxycarbonyl-modified phenylalanine (Fmoc-Phe) hydrogels for localized and sustained in vivo release of an anti-inflammatory agent for functional pain remediation. In an effort to further elucidate design principles to optimize these materials for delivery of a variety of molecular agents, we herein report a systematic examination of electrostatic effects on the release of cargo molecules from Fmoc-Phe derived hydrogels. Specifically, we interrogate the release of cationic, anionic, and neutral cargo molecules from a series of cationic and anionic Fmoc-Phe derived hydrogels. We observed that cargo was readily released from the hydrogels except when the cargo and hydrogel network had complementary charges, in which case the cargo was highly retained in the network. These results demonstrate that the electrostatic characteristics of both the hydrogel network and the specific cargo are critical design parameters in the formulation of LMW supramolecular hydrogel systems in the development of next-generation materials for drug delivery applications.
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Affiliation(s)
- Brittany L Abraham
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | - Ethan S Toriki
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | - N'Dea J Tucker
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
| | - Bradley L Nilsson
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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16
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Singh P, Misra S, Sepay N, Mondal S, Ray D, Aswal VK, Nanda J. Self-assembling behaviour of a modified aromatic amino acid in competitive medium. SOFT MATTER 2020; 16:6599-6607. [PMID: 32608458 DOI: 10.1039/d0sm00584c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Aromatic amino acid, specifically phenylalanine (Phe), is one of the most studied building blocks in peptide synthesis due to its importance in biology. It is reported in the literature that Phe-containing peptides have a high tendency to form different self-assembled materials due to efficient aromatic-aromatic interactions. In this article, we have tuned the supramolecular interactions of phenylalanine by making it electron-deficient upon introduction of the nitro group in the ring. The presence of the nitro group has a profound influence on the self-assembly process. It has been observed that 4-nitrophenylalanine (4NP) is a highly efficient gelator compared with the native phenylalanine in DMSO solvent in terms of minimum gelation concentration and it forms hydrogen bonding mediated crystals in water. The change of self-assembling patterns of 4NP in these solvents was studied using X-ray diffraction, UV-Vis spectroscopy, FE-SEM and other techniques. With the help of different experimental data and density functional theory (DFT), we have simulated the theoretical structure of 4NP in DMSO. The theoretical structure of 4NP in DMSO is different compared with that of crystals in water. We then studied the self-assembly process of 4NP in the mixed solvent of DMSO (polar aprotic) and water (polar protic). Different competitive non-covalent interactions of solvents as well as the ratio of the solvent mixture guide the final self-assembly state of 4NP.
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Affiliation(s)
- Pijush Singh
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, P.O. Botanic Garden, Howrah-711103, West Bengal, India.
| | - Souvik Misra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, P.O. Botanic Garden, Howrah-711103, West Bengal, India.
| | - Nayim Sepay
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata-700032, India
| | - Sanjoy Mondal
- Polymer Science Unit, Indian association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre Trombay, Mumbai, 400085, India
| | - Vinod K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre Trombay, Mumbai, 400085, India
| | - Jayanta Nanda
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, P.O. Botanic Garden, Howrah-711103, West Bengal, India.
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17
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Kadeeja A, Joseph S, Abraham JN. Self-assembly of novel Fmoc-cardanol compounds into hydrogels - analysis based on rheological, structural and thermal properties. SOFT MATTER 2020; 16:6294-6303. [PMID: 32462156 DOI: 10.1039/d0sm00670j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydrogels of low molecular weight molecules are particularly appealing for various biomedical applications such as drug delivery, tissue engineering, and antitumor therapy due to their excellent biocompatibility, biodegradability, and easy availability. Fmoc-peptide hydrogels form an essential category of these hydrogels. Herein we report a new class of Fmoc hydrogels in which cardanol (3-pentadecyl phenol (PDP)) is covalently linked with fluorenylmethyloxycarbonyl group. Cardanol is a plant-based renewable raw material, readily obtained from Cashew Nut Shell Liquid (CNSL). The long aliphatic chain of pentadecyl phenol helps in bringing a structural incompatibility and generates different nanostructures such as nanospheres, nanotapes, and nanofibers depending on Fmoc substitution and the solvents used. Stable hydrogels were formed from Fmoc-PDP in DMSO/H2O, and the critical aggregation concentration (CAC) and critical gelation concentration (CGC) were determined. The role of non-covalent forces such as hydrogen-bonding, hydrophobicity, and π-π stacking interactions in governing self-assembly to hydrogel formation was studied for Fmoc, DiFmoc and Boc groups attached to PDP. The thermal properties were analyzed, and smectic and nematic phases were identified for the molecules depending on the substitutions involved. Overall the study supports the mechanisms of aggregation and gelation in novel Fmoc-cardanol derivatives.
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Affiliation(s)
- Aliya Kadeeja
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homibhabha Road, Pune, 411008, India.
| | - Seena Joseph
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homibhabha Road, Pune, 411008, India.
| | - Jancy Nixon Abraham
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homibhabha Road, Pune, 411008, India.
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18
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Tuning the gelation behavior of short laminin derived peptides via solvent mediated self-assembly. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110483. [DOI: 10.1016/j.msec.2019.110483] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/17/2019] [Accepted: 11/20/2019] [Indexed: 12/12/2022]
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19
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Garcia AM, Lavendomme R, Kralj S, Kurbasic M, Bellotto O, Cringoli MC, Semeraro S, Bandiera A, De Zorzi R, Marchesan S. Self-Assembly of an Amino Acid Derivative into an Antimicrobial Hydrogel Biomaterial. Chemistry 2020; 26:1880-1886. [PMID: 31868256 DOI: 10.1002/chem.201905681] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Indexed: 02/06/2023]
Abstract
N-(4-Nitrobenzoyl)-Phe self-assembled into a transparent supramolecular hydrogel, which displayed high fibroblast and keratinocyte cell viability. The compound showed a mild antimicrobial activity against E. coli both as a hydrogel and in solution. Single-crystal XRD data revealed packing details, including protonation of the C-terminus due to an apparent pKa shift, as confirmed by pH titrations. MicroRaman analysis revealed almost identical features between the gel and crystal states, although more disorder in the former. The hydrogel is thermoreversible and disassembles within a range of temperatures that can be fine-tuned by experimental conditions, such as gelator concentration. At the minimum gelling concentration of 0.63 wt %, the hydrogel disassembles in a physiological temperature range of 39-42 °C, thus opening the way to its potential use as a biomaterial.
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Affiliation(s)
- Ana M Garcia
- Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Roy Lavendomme
- Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, UK
| | - Slavko Kralj
- Materials Synthesis Department, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Marina Kurbasic
- Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Ottavia Bellotto
- Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Maria C Cringoli
- Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Sabrina Semeraro
- Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Antonella Bandiera
- Dipartimento di Scienze della Vita, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Rita De Zorzi
- Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Silvia Marchesan
- Dipartimento di Scienze Chimiche e Farmaceutiche, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
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20
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Abraham BL, Liyanage W, Nilsson BL. Strategy to Identify Improved N-Terminal Modifications for Supramolecular Phenylalanine-Derived Hydrogelators. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14939-14948. [PMID: 31664849 PMCID: PMC7318788 DOI: 10.1021/acs.langmuir.9b02971] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Supramolecular hydrogels formed by self-assembly of low molecular weight (LMW) compounds have been identified as promising materials for applications in tissue engineering and regenerative medicine. In many cases, the relationship between the chemical structure of the gelator and the emergent hydrogel properties is poorly understood. As a result, empirical screening strategies instead of rational design approaches are often relied upon to tune the emergent properties of the gels. Herein, we describe a novel strategy to identify improved phenylalanine (Phe) derived gelators using a focused empirical approach. Fluorenylmethoxycarbonyl (Fmoc) protected Phe derivatives are a privileged class of gelators that spontaneously self-assemble into fibrils that entangle to form a hydrogel network upon dissolution into water. However, the Fmoc group has been shown to have toxicity drawbacks for potential biological applications, requiring the identification of new N-terminal modifications that promote efficient self-assembly but lack the shortcomings of the Fmoc group. We previously discovered that fibrils in Fmoc-p-nitrophenylalanine (Fmoc-4-NO2-Phe) hydrogels transition to crystalline microtubes after several hours by a mechanism that involves the hierarchical assembly and fusion of the hydrogel fibrils. We hypothesized that this hierarchical crystallization behavior could form the basis of a screening approach to identify alternative N-terminal functional groups to replace Fmoc in Phe-derived LMW gelators. Specifically, screening N-terminal modifying groups for 4-NO2-Phe that stabilize the hydrogel state by preventing subsequent hierarchical crystallization would facilitate empirical identification of functional Fmoc replacements. To test this approach, we screened a small series of 4-NO2-Phe derivatives with various N-terminal modifying groups to determine if any provided stable LMW supramolecular hydrogels. All but one of the 4-NO2-Phe derivatives assembled into crystalline forms. Only the 1-naphthaleneacetic acid (1-Nap) 4-NO2-Phe derivative self-assembled into a stable hydrogel network. Additional Phe derivatives were modified by N-terminal 1-Nap groups to confirm the general potential of 1-Nap as a suitable replacement for Fmoc, and all derivatives formed stable hydrogels under similar conditions to their Fmoc-Phe counterparts. These results illustrate the potential of this approach to identify next-generation Phe-derived LMW gelators with improved emergent properties.
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Affiliation(s)
- Brittany L Abraham
- Department of Chemistry , University of Rochester , Rochester , New York 14627-0216 , United States
| | - Wathsala Liyanage
- Department of Chemistry , University of Rochester , Rochester , New York 14627-0216 , United States
| | - Bradley L Nilsson
- Department of Chemistry , University of Rochester , Rochester , New York 14627-0216 , United States
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21
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Singh P, Misra S, Das A, Roy S, Datta P, Bhattacharjee G, Satpati B, Nanda J. Supramolecular Hydrogel from an Oxidized Byproduct of Tyrosine. ACS APPLIED BIO MATERIALS 2019; 2:4881-4891. [PMID: 35021488 DOI: 10.1021/acsabm.9b00637] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pijush Singh
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, India
| | - Souvik Misra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, India
| | - Ankita Das
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, India
| | - Subhasish Roy
- Department of Chemistry, BITS Pilani Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India
| | - Pallab Datta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, India
| | - Gourab Bhattacharjee
- Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, West Bengal 700064, India
| | - Biswarup Satpati
- Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, West Bengal 700064, India
| | - Jayanta Nanda
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal 711103, India
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22
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Guterman T, Levin M, Kolusheva S, Levy D, Noor N, Roichman Y, Gazit E. Real‐Time In‐Situ Monitoring of a Tunable Pentapeptide Gel–Crystal Transition. Angew Chem Int Ed Engl 2019; 58:15869-15875. [DOI: 10.1002/anie.201907971] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/26/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Tom Guterman
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Maayan Levin
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
| | - Sofiya Kolusheva
- Ilse Katz Institute for Nanotechnology Ben Gurion University of the Negev Beer Sheva 84105 Israel
| | - Davide Levy
- Wolfson Applied Materials Research Center Tel Aviv University Tel Aviv 6997801 Israel
| | - Nadav Noor
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
| | - Yael Roichman
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
- Raymond and Beverly Sackler School of Physics & Astronomy Tel Aviv University Tel Aviv 6997801 Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
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Guterman T, Levin M, Kolusheva S, Levy D, Noor N, Roichman Y, Gazit E. Real‐Time In‐Situ Monitoring of a Tunable Pentapeptide Gel–Crystal Transition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907971] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tom Guterman
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Maayan Levin
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
| | - Sofiya Kolusheva
- Ilse Katz Institute for Nanotechnology Ben Gurion University of the Negev Beer Sheva 84105 Israel
| | - Davide Levy
- Wolfson Applied Materials Research Center Tel Aviv University Tel Aviv 6997801 Israel
| | - Nadav Noor
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
| | - Yael Roichman
- Raymond and Beverly Sackler School of Chemistry Tel Aviv University Tel Aviv 6997801 Israel
- Raymond and Beverly Sackler School of Physics & Astronomy Tel Aviv University Tel Aviv 6997801 Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- Department of Materials Science and Engineering Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Tel Aviv 6997801 Israel
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24
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25
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Chalard A, Joseph P, Souleille S, Lonetti B, Saffon-Merceron N, Loubinoux I, Vaysse L, Malaquin L, Fitremann J. Wet spinning and radial self-assembly of a carbohydrate low molecular weight gelator into well organized hydrogel filaments. NANOSCALE 2019; 11:15043-15056. [PMID: 31179473 DOI: 10.1039/c9nr02727k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, we describe how a simple single low molecular weight gelator (LMWG) molecule - N-heptyl-d-galactonamide, which is easy to produce at the gram scale - is spun into gel filaments by a wet spinning process based on solvent exchange. A solution of the gelator in DMSO is injected into water and the solvent diffusion triggers the supramolecular self-assembly of the N-heptyl-d-galactonamide molecules into nanometric fibers. These fibers entrap around 97% of water, thus forming a highly hydrated hydrogel filament, deposited in a well organized coil and locally aligned. This self-assembly mechanism also leads to a very narrow distribution of the supramolecular fiber width, around 150 nm. In addition, the self-assembled fibers are oriented radially inside the wet-spun filaments and at a high flow rate, fibers are organized in spirals. As a result, this process gives rise to a high control of the gelator self-assembly compared with the usual thermal sol-gel transition. This method also opens the way to the controlled extrusion at room temperature of these very simple, soft, biocompatible but delicate hydrogels. The gelator concentration and the flow rates leading to the formation of the gel filaments have been screened. The filament diameter, its internal morphology, the solvent exchange and the velocity of the jet have been investigated by video image analysis and electron microscopy. The stability of these delicate hydrogel ropes has been studied, revealing a polymorphic transformation into macroscopic crystals with time under some storage conditions. The cell viability of a neuronal cell line on the filaments has also been estimated.
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Affiliation(s)
- Anaïs Chalard
- IMRCP, Université de Toulouse, CNRS, Bat 2R1, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France.
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26
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Farahani AD, Martin AD, Iranmanesh H, Bhadbhade MM, Beves JE, Thordarson P. Gel- and Solid-State-Structure of Dialanine and Diphenylalanine Amphiphiles: Importance of C⋅⋅⋅H Interactions in Gelation. Chemphyschem 2019; 20:972-983. [PMID: 30784156 DOI: 10.1002/cphc.201801104] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 02/13/2019] [Indexed: 12/26/2022]
Abstract
To investigate the role of the capping group in the solution and solid-state self-assembly of short peptide amphiphiles, dialanine and diphenylalanine have been linked via the N-terminus to a benzene (phenyl) and 3-naphthyl capping groups using three different methylene linkers; (CH2 )n , n=0-4 for the benezene and 0, 1 and 2 for the naphthalene capping group. Atomic force microscopy (AFM), oscillatory rheology, circular dichroism (CD), and IR analysis have been employed to understand the properties of these peptide-based hydrogels. Several X-ray structures of these short peptide gelators give useful conformational information regarding packing. A comparison of these solid state structures with their gel state properties yielded greater insights into the process of self-assembly in short peptide gelators, particularly in terms of the important role of C⋅⋅⋅H interactions appear to play in determining if a short aromatic peptide does form a gel or not.
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Affiliation(s)
- Abbas D Farahani
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW 2052, Australia
| | - Adam D Martin
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW 2052, Australia
| | - Hasti Iranmanesh
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Mohan M Bhadbhade
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jonathon E Beves
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Pall Thordarson
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney, NSW 2052, Australia
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27
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Amplification of chirality in surface-confined supramolecular bilayers. Nat Commun 2018; 9:3416. [PMID: 30143623 PMCID: PMC6109073 DOI: 10.1038/s41467-018-05962-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 08/06/2018] [Indexed: 11/17/2022] Open
Abstract
One of the most dramatic effects of supramolecular assembly is the generation of homochirality in near-racemic systems. It is normally infeasible though to flip the absolute chirality of a molecule. Here we rationalize this seemingly contradictory chiral amplification mechanism with a combined scanning tunneling microscopy (STM) and modeling study of surface-grown enantiomerically unbalanced supramolecular bilayers. We identify a chemical equilibrium between opposite but not mirror-image-related twisting molecular geometries of the pure enantiomer, and accordingly two competing aggregation pathways. The nonlinear chiral amplification effect in bilayers of near-racemic mixtures involves the biased adsorption and organization of the majority enantiomer, and the compliance of the minority enantiomer to adopt an energetically less favorable twisting molecular conformation and handed organization. By establishing a direct link between molecular building block architectures and chiral amplification effect, this study provides a general approach to gain insight into cooperative supramolecular assembly in mixed enantiomer systems. One of the most dramatic effects of supramolecular assembly is the generation of homochirality in near-racemic systems. Here the authors rationalize the chiral amplification mechanism with a combined scanning tunneling microscopy and modelling study of surface-grown enantiomerically unbalanced supramolecular bilayers.
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28
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Tsuzuki T, Kabumoto M, Arakawa H, Ikeda M. The effect of carbohydrate structures on the hydrogelation ability and morphology of self-assembled structures of peptide-carbohydrate conjugates in water. Org Biomol Chem 2018; 15:4595-4600. [PMID: 28497834 DOI: 10.1039/c7ob00816c] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We describe the construction of peptide-carbohydrate conjugates, namely glycopeptides, capable of self-assembling in water. We found that disaccharide structures (epimer or glycosidic-bond geometry) appended to the glycopeptides have a noticeable effect on the hydrogel formation ability as well as the morphology of the self-assembled structures. The soft materials consisting of self-assembled structures with carbohydrates on their surface and various types of morphologies might be useful as matrices to investigate the function of carbohydrates in biological events.
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Affiliation(s)
- Tomoya Tsuzuki
- Department of Life Science and Chemistry, Graduate School of Natural Science and Technology, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
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29
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Satapathy S, Prabakaran P, Prasad E. Augmenting Photoinduced Charge Transport in a Single-Component Gel System: Controlled In Situ Gel-Crystal Transformation at Room Temperature. Chemistry 2018; 24:6217-6230. [DOI: 10.1002/chem.201800218] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Sitakanta Satapathy
- Physical Organic Chemistry Division; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Palani Prabakaran
- Physical Organic Chemistry Division; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Edamana Prasad
- Physical Organic Chemistry Division; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
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30
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Song J, Xing R, Jiao T, Peng Q, Yuan C, Möhwald H, Yan X. Crystalline Dipeptide Nanobelts Based on Solid-Solid Phase Transformation Self-Assembly and Their Polarization Imaging of Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:2368-2376. [PMID: 29285927 DOI: 10.1021/acsami.7b17933] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Controlled phase transformation involving biomolecular organization to generate dynamic biomimetic self-assembly systems and functional materials is currently an appealing topic of research on molecular materials. Herein, we achieve by ultrasonic irradiation the direct solid-solid transition of bioinspired dipeptide organization from triclinic structured aggregates to nanofibers and eventually to monoclinic nanobelts with strong polarized luminescence. It is suggested that the locally high temperature and pressure produced by cavitation effects cleaves the hydrophobic, π-π stacking or self-locked intramolecular interactions involved in one phase state and then rearranges the molecular packing to form another well-ordered aromatic dipeptide crystalline structure. Such a sonication-modulated solid-solid phase transition evolution is governed by distinct molecular interactions at different stages of structural organization. The resulting crystalline nanobelts are for the first time applied for polarization imaging of cells, which can be advantageous to directly inspect the uptake and fate of nanoscale delivery platforms without labeling of fluorescent dyes. This finding provides a new perspective to comprehend the dynamic evolution of biomolecular self-organization with energy supply by an external field and open up a facile and versatile approach of using anisotropic nanostructures for polarization imaging of cells and even live organisms in future.
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Affiliation(s)
- Jingwen Song
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Qinhuangdao 066004, P. R. China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China
- Hebei Key Lab of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University , Qinhuangdao 066004, P. R. China
| | - Ruirui Xing
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Qinhuangdao 066004, P. R. China
- Hebei Key Lab of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University , Qinhuangdao 066004, P. R. China
| | - Qiuming Peng
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University , Qinhuangdao 066004, P. R. China
| | - Chengqian Yuan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China
| | - Helmuth Möhwald
- Max Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam/Golm, Germany
| | - Xuehai Yan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China
- Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190, P. R. China
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31
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Lengyel Z, Rufo CM, Moroz YS, Makhlynets OV, Korendovych IV. Copper-Containing Catalytic Amyloids Promote Phosphoester Hydrolysis and Tandem Reactions. ACS Catal 2018; 8:59-62. [PMID: 30319881 PMCID: PMC6181230 DOI: 10.1021/acscatal.7b03323] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Self-assembly of short de novo designed peptides gives rise to catalytic amyloids capable of facilitating multiple chemical transformations. We show that catalytic amyloids can efficiently hydrolyze paraoxon, a widely used, highly toxic organophosphate pesticide. Moreover, these robust and inexpensive metal-containing materials can be easily deposited on various surfaces producing catalytic flow devices. Finally, functional promiscuity of catalytic amyloids promotes tandem hydrolysis/oxidation reactions. High efficiency discovered in a very small library of peptides suggests an enormous potential for further improvement of catalytic properties both in terms of catalytic efficiency and substrate scope.
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Affiliation(s)
- Zsófia Lengyel
- Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244
| | - Caroline M. Rufo
- Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244
| | | | - Olga V. Makhlynets
- Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244
| | - Ivan V. Korendovych
- Department of Chemistry, Syracuse University, 111 College Place, Syracuse, NY 13244
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32
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He T, Misuraca JC, Musah RA. "Carboranyl-cysteine"-Synthesis, Structure and Self-Assembly Behavior of a Novel α-Amino Acid. Sci Rep 2017; 7:16995. [PMID: 29209068 PMCID: PMC5717241 DOI: 10.1038/s41598-017-16926-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/20/2017] [Indexed: 11/09/2022] Open
Abstract
Substitution of the thiol proton in cysteine with m-carborane furnished 2-amino-3-(1,7-dicarba-closo-dodecacarboranyl-1-thio)propanoic acid (3), a boron cluster amino acid that exhibits self-assembly to form micron-sized constructs. Field emission scanning electron microscopy revealed that ethanol solutions of 3 form floret-shaped constructs, while fibrillar architectures are formed in water. Furthermore, slow evaporation of methanol solutions of 3 produced crystals whose structure was revealed by X-ray crystallography. The crystal structure shows that the hydrogen bonding interactions between pairs of 3 result in the formation of bilayers of 174 Å in length. The orientation of the clusters is not random in the crystal structure, such that the side-by-side aligned polyhedra are offset by 158 degrees. The material was characterized by FT-IR, NMR, high resolution mass spectrometry and dynamic light scattering. Circular dichroism studies indicated that self-assembly occurs at concentrations as low as 0.01 μM. This represents the first demonstration of self-assembly of a carborane-based molecule in the absence of metals. The amino acid motif provides opportunities for the controlled synthesis of extended multimeric units with tunable properties and the potential for applications in biology, medicine and materials chemistry.
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Affiliation(s)
- Tianyu He
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, NY, 12222, USA
| | | | - Rabi A Musah
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, NY, 12222, USA.
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33
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Rajbhandary A, Raymond DM, Nilsson BL. Self-Assembly, Hydrogelation, and Nanotube Formation by Cation-Modified Phenylalanine Derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5803-5813. [PMID: 28514156 DOI: 10.1021/acs.langmuir.7b00686] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Fluorenylmethoxycarbonyl-protected phenylalanine (Fmoc-Phe) derivatives are a privileged class of molecule that spontaneously self-assemble into hydrogel fibril networks. Fmoc-Phe-derived hydrogels are typically formed by dilution of the hydrogelator from an organic cosolvent into water, by dissolution of the hydrogelator under basic aqueous conditions followed by adjustment of the pH with acid, or by other external triggering forces, including sonication and heating. These conditions complicate biological applications of these hydrogels. Herein, we report C-terminal cation-modified Fmoc-Phe derivatives that are positively charged across a broad range of pH values and that can self-assemble and form hydrogel networks spontaneously without the need to adjust pH or to use an organic cosolvent. In addition, these cationic Fmoc-Phe derivatives are found to self-assemble into novel sheet-based nanotube structures at higher concentrations. These nanotube structures are unique to C-terminal cationic Fmoc-Phe derivatives; the parent Fmoc-Phe carboxylic acids form only fibril or worm-like micelle structures. Nanotube formation by the cationic Fmoc-Phe molecules is dependent on positive charge at the C-terminus, since at basic pH where the positive charge is reduced only fibrils/worm-like micelles are formed and nanotube formation is suppressed. These studies provide an important example of Fmoc-Phe derivatives that can elicit hydrogelation without organic cosolvent or pH modification and also provide insight into how subtle modification of structure can perturb the self-assembly pathways of Fmoc-Phe derivatives.
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Affiliation(s)
- Annada Rajbhandary
- Department of Chemistry, University of Rochester , Rochester, New York 14627-0216, United States
| | - Danielle M Raymond
- Department of Chemistry, University of Rochester , Rochester, New York 14627-0216, United States
| | - Bradley L Nilsson
- Department of Chemistry, University of Rochester , Rochester, New York 14627-0216, United States
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34
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Wan Y, Liu L, Yuan S, Sun J, Li Z. pH-Responsive Peptide Supramolecular Hydrogels with Antibacterial Activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3234-3240. [PMID: 28282150 DOI: 10.1021/acs.langmuir.6b03986] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Smart hydrogels have received increasing attention for many applications. Here, we synthesized a class of cationic peptide amphiphiles that can self-assemble into hydrogels by ring-opening polymerization (ROP) and post-modification strategy. The incorporation of cationic lysine residues suppresses the formation of fibril-like structure and further the gelation ability of the samples. Sodium alginate (SA) is used to enhance the rheology performance of the hydrogels. The hydrogels exhibit pH-dependent self-assembly and the gelation behavior that enables them to be ideal smart hydrogel systems for biomedical applications. Furthermore, the as-prepared hybrid peptide hydrogels show antibacterial activity.
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Affiliation(s)
- Yaoming Wan
- School of Polymer Science and Engineering, Qingdao University of Science and Technology , Qingdao, 266042, China
- Institute of Chemistry, Chinese Academy of Science , Beijing, 100190, China
| | - Libing Liu
- Institute of Chemistry, Chinese Academy of Science , Beijing, 100190, China
| | - Shuaishuai Yuan
- School of Polymer Science and Engineering, Qingdao University of Science and Technology , Qingdao, 266042, China
| | - Jing Sun
- School of Polymer Science and Engineering, Qingdao University of Science and Technology , Qingdao, 266042, China
| | - Zhibo Li
- School of Polymer Science and Engineering, Qingdao University of Science and Technology , Qingdao, 266042, China
- Institute of Chemistry, Chinese Academy of Science , Beijing, 100190, China
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35
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Barker EC, Martin AD, Garvey CJ, Goh CY, Jones F, Mocerino M, Skelton BW, Ogden MI, Becker T. Thermal annealing behaviour and gel to crystal transition of a low molecular weight hydrogelator. SOFT MATTER 2017; 13:1006-1011. [PMID: 28083581 DOI: 10.1039/c6sm02431a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The thermal annealing behaviour of an electrolyte-triggered calixarene hydrogelator is found to depend strongly on the specific metal chloride used. While the lithium chloride gel showed typical gel-sol transitions as a function of temperature, the magnesium chloride gel was found to repeatedly strengthen with heat-cool cycles. Structural investigations using small-angle neutron scattering, and scanning probe microscopy, suggest that the annealing behaviour is associated with a change in morphology of the fibrous structures supporting the gel. On prolonged standing at room temperature, the magnesium chloride gel underwent a gel-crystal transition, with the collapsing gel accompanied by the deposition of crystals of a magnesium complex of the proline-functionalised calix[4]arene gelator.
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Affiliation(s)
- Emily C Barker
- Department of Chemistry and Nanochemistry Research Institute, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia.
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36
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Liu X, Fei J, Wang A, Cui W, Zhu P, Li J. Transformation of Dipeptide-Based Organogels into Chiral Crystals by Cryogenic Treatment. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xingcen Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Lab of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Lab of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Anhe Wang
- State Key Laboratory of Biochemical Engineering; Institute of Process Engineering; Chinese Academy of Sciences; Beijing 100190 China
| | - Wei Cui
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Lab of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Pengli Zhu
- Shenzhen Institutes of Advanced Technology; Chinese Academy of Sciences; Shenzhen 518055 China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Lab of Colloid, Interface and Chemical Thermodynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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37
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Liu X, Fei J, Wang A, Cui W, Zhu P, Li J. Transformation of Dipeptide-Based Organogels into Chiral Crystals by Cryogenic Treatment. Angew Chem Int Ed Engl 2017; 56:2660-2663. [PMID: 28140492 DOI: 10.1002/anie.201612024] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Indexed: 12/22/2022]
Abstract
Controlled molecular assembly is an important approach for the synthesis of single-component materials with diverse functions. Unlike traditional heat treatment or solvent modulation, cryogenic treatment at 77 K enabled the tunable transition of a self-assembled diphenylalanine organogel into a hexagonal crystal. Under these conditions, the assembled molecules undergo an internal rearrangement in the solid state to form a well-defined chiral crystal structure. Moreover, these assemblies exhibit enhanced emission. This strategy for the synthesis of single-component supramolecular assemblies can create new functions by manipulating phase transitions.
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Affiliation(s)
- Xingcen Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Anhe Wang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wei Cui
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Pengli Zhu
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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38
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Arnedo-Sánchez L, Nonappa N, Bhowmik S, Hietala S, Puttreddy R, Lahtinen M, De Cola L, Rissanen K. Rapid self-healing and anion selectivity in metallosupramolecular gels assisted by fluorine–fluorine interactions. Dalton Trans 2017; 46:7309-7316. [DOI: 10.1039/c7dt00983f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Metal complexes from perfluoroalkylamide terpyridine self-assemble into anion selective gels, which manifest self-healing and thermal rearrangement in aqueous dimethyl sulfoxide.
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Affiliation(s)
| | - Nonappa Nonappa
- Molecular Materials Group
- Department of Applied Physics
- Aalto University School of Science
- Espoo
- Finland
| | - Sandip Bhowmik
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
| | - Sami Hietala
- Department of Chemistry
- University of Helsinki
- Helsinki
- Finland
| | - Rakesh Puttreddy
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
| | - Manu Lahtinen
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
| | - Luisa De Cola
- ISIS
- Université de Strasbourg and CNRS UMR 7006
- Strasbourg 67000
- France
| | - Kari Rissanen
- University of Jyvaskyla
- Department of Chemistry
- Nanoscience Center
- Jyväskylä
- Finland
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39
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Martin AD, Wojciechowski JP, Bhadbhade MM, Thordarson P. A Capped Dipeptide Which Simultaneously Exhibits Gelation and Crystallization Behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:2245-50. [PMID: 26890360 DOI: 10.1021/acs.langmuir.5b03963] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Short peptides capped at their N-terminus are often highly efficient gelators, yet notoriously difficult to crystallize. This is due to strong unidirectional interactions within fibers, resulting in structure propagation only along one direction. Here, we synthesize the N-capped dipeptide, benzimidazole-diphenylalanine, which forms both hydrogels and single crystals. Even more remarkably, we show using atomic force microscopy the coexistence of these two distinct phases. We then use powder X-ray diffraction to investigate whether the single crystal structure can be extrapolated to the molecular arrangement within the hydrogel. The results suggest parallel β-sheet arrangement as the dominant structural motif, challenging existing models for gelation of short peptides, and providing new directions for the future rational design of short peptide gelators.
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Affiliation(s)
- Adam D Martin
- School of Chemistry, ‡The Australian Centre for Nanomedicine and the ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, and §Mark Wainwright Analytical Centre, The University of New South Wales , Sydney, 2052 NSW, Australia
| | - Jonathan P Wojciechowski
- School of Chemistry, ‡The Australian Centre for Nanomedicine and the ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, and §Mark Wainwright Analytical Centre, The University of New South Wales , Sydney, 2052 NSW, Australia
| | - Mohan M Bhadbhade
- School of Chemistry, ‡The Australian Centre for Nanomedicine and the ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, and §Mark Wainwright Analytical Centre, The University of New South Wales , Sydney, 2052 NSW, Australia
| | - Pall Thordarson
- School of Chemistry, ‡The Australian Centre for Nanomedicine and the ARC Centre of Excellence for Convergent Bio-Nano Science and Technology, and §Mark Wainwright Analytical Centre, The University of New South Wales , Sydney, 2052 NSW, Australia
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40
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Liyanage W, Nilsson BL. Substituent Effects on the Self-Assembly/Coassembly and Hydrogelation of Phenylalanine Derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:787-799. [PMID: 26717444 DOI: 10.1021/acs.langmuir.5b03227] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Supramolecular hydrogels derived from the self-assembly of organic molecules have been exploited for applications ranging from drug delivery to tissue engineering. The relationship between the structure of the assembly motif and the emergent properties of the resulting materials is often poorly understood, impeding rational approaches for the creation of next-generation materials. Aromatic π-π interactions play a significant role in the self-assembly of many supramolecular hydrogelators, but the exact nature of these interactions lacks definition. Conventional models that describe π-π interactions rely on quadrupolar electrostatic interactions between neighboring aryl groups in the π-system. However, recent experimental and computational studies reveal the potential importance of local dipolar interactions between elements of neighboring aromatic rings in stabilizing π-π interactions. Herein, we examine the nature of π-π interactions in the self- and coassembly of Fmoc-Phe-derived hydrogelators by systematically varying the electron-donating or electron-withdrawing nature of the side chain benzyl substituents and correlating these effects to the emergent assembly and gelation properties of the systems. These studies indicate a significant role for stabilizing dipolar interactions between neighboring benzyl groups in the assembled materials. Additional evidence for specific dipolar interactions is provided by high-resolution crystal structures obtained from dynamic transition of gel fibrils to crystals for several of the self-assembled/coassembled Fmoc-Phe derivatives. In addition to electronic effects, steric properties also have a significant effect on the interaction between neighboring benzyl groups in these assembled systems. These findings provide significant insight into the structure-function relationship for Fmoc-Phe-derived hydrogelators and give cues for the design of next-generation materials with desired emergent properties.
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Affiliation(s)
- Wathsala Liyanage
- Department of Chemistry, University of Rochester , Rochester, New York 14627-0216, United States
| | - Bradley L Nilsson
- Department of Chemistry, University of Rochester , Rochester, New York 14627-0216, United States
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41
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Huang A, Ou C, Cai Y, Wang Z, Li H, Yang Z, Chen M. In situ enzymatic formation of supramolecular nanofibers for efficiently killing cancer cells. RSC Adv 2016. [DOI: 10.1039/c6ra01676f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Precursors were more toxic to cancer cells than their corresponding gelators.
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Affiliation(s)
- Anqing Huang
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Caiwen Ou
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Yanbin Cai
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Zhongyan Wang
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Hekai Li
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Minsheng Chen
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
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