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Sangji MH, Lee SR, Sai H, Weigand S, Palmer LC, Stupp SI. Self-Sorting vs Coassembly in Peptide Amphiphile Supramolecular Nanostructures. ACS NANO 2024; 18:15878-15887. [PMID: 38848478 DOI: 10.1021/acsnano.4c03083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
The functionality of supramolecular nanostructures can be expanded if systems containing multiple components are designed to either self-sort or mix into coassemblies. This is critical to gain the ability to craft self-assembling materials that integrate functions, and our understanding of this process is in its early stages. In this work, we have utilized three different peptide amphiphiles with the capacity to form β-sheets within supramolecular nanostructures and found binary systems that self-sort and others that form coassemblies. This was measured using atomic force microscopy to reveal the nanoscale morphology of assemblies and confocal laser scanning microscopy to determine the distribution of fluorescently labeled monomers. We discovered that PA assemblies with opposite supramolecular chirality self-sorted into chemically distinct nanostructures. In contrast, the PA molecules that formed a mixture of right-handed, left-handed, and flat nanostructures on their own were able to coassemble with the other PA molecules. We attribute this phenomenon to the energy barrier associated with changing the handedness of a β-sheet twist in a coassembly of two different PA molecules. This observation could be useful for designing biomolecular nanostructures with dual bioactivity or interpenetrating networks of PA supramolecular assemblies.
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Affiliation(s)
- M Hussain Sangji
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Sieun Ruth Lee
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, Illinois 60611, United States
| | - Steven Weigand
- DuPont-Northwestern-Dow Collaborative Access Team Synchrotron Research Center, Northwestern University, Advanced Photon Source/Argonne National Laboratory 432-A004, Argonne, Illinois 60439, United States
| | - Liam C Palmer
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N St. Clair Street, Chicago, Illinois 60611, United States
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2
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Hamley IW, Castelletto V. Small-angle scattering techniques for peptide and peptide hybrid nanostructures and peptide-based biomaterials. Adv Colloid Interface Sci 2023; 318:102959. [PMID: 37473606 DOI: 10.1016/j.cis.2023.102959] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/22/2023]
Abstract
The use of small-angle scattering (SAS) in the study of the self-assembly of peptides and peptide conjugates (lipopeptides, polymer-peptide conjugates and others) is reviewed, highlighting selected research that illustrates different methods and analysis techniques. Both small-angle x-ray scattering (SAXS) and small-angle neutron scattering (SANS) are considered along with examples that exploit their unique capabilities. For SAXS, this includes the ability to perform rapid measurements enabling high throughput or fast kinetic studies and measurements under dilute conditions. For SANS, contrast variation using H2O/D2O mixtures enables the study of peptides interacting with lipids and TR-SANS (time-resolved SANS) studies of exchange kinetics and/or peptide-induced structural changes. Examples are provided of studies measuring form factors of different self-assembled structures (micelles, fibrils, nanotapes, nanotubes etc) as well as structure factors from ordered phases (lyotropic mesophases), peptide gels and hybrid materials such as membranes formed by mixing peptides with polysaccharides or peptide/liposome mixtures. SAXS/WAXS (WAXS: wide-angle x-ray scattering) on peptides and peptide hybrids is also discussed, and the review concludes with a perspective on potential future directions for research in the field.
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Affiliation(s)
- Ian W Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK.
| | - Valeria Castelletto
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK
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3
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Chen S, Li Z, Zhang C, Wu X, Wang W, Huang Q, Chen W, Shi J, Yuan D. Cation-π Interaction Trigger Supramolecular Hydrogelation of Peptide Amphiphiles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2301063. [PMID: 36932893 DOI: 10.1002/smll.202301063] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Indexed: 06/18/2023]
Abstract
As an important noncovalent interaction, cation-π interaction plays an essential role in a broad area of biology and chemistry. Despite extensive studies in protein stability and molecular recognition, the utilization of cation-π interaction as a major driving force to construct supramolecular hydrogel remains uncharted. Here, a series of peptide amphiphiles are designed with cation-π interaction pairs that can self-assemble into supramolecular hydrogel under physiological condition. The influence of cation-π interaction is thoroughly investigated on peptide folding propensity, morphology, and rigidity of the resultant hydrogel. Computational and experimental results confirm that cation-π interaction could serve as a major driving force to trigger peptide folding, resultant β-hairpin peptide self-assembled into fibril-rich hydrogel. Furthermore, the designed peptides exhibit high efficacy on cytosolic protein delivery. As the first case of using cation-π interactions to trigger peptide self-assembly and hydrogelation, this work provides a novel strategy to generate supramolecular biomaterials.
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Affiliation(s)
- Shuang Chen
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
| | - Zenghui Li
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
| | - Chunhui Zhang
- College of Biology, Hunan University Changsha, Hunan, 410082, P. R. China
| | - Xia Wu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
- Shenzhen International Institute for Biomedical Research, Longhua District Shenzhen, Guangdong, 518116, P. R. China
| | - Wenjie Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
| | - Qingjun Huang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
| | - Weiyu Chen
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
| | - Junfeng Shi
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
| | - Dan Yuan
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, School of Biomedical Sciences, Hunan University Changsha, Hunan, 410082, P. R. China
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4
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Poirier A, Le Griel P, Hoffmann I, Perez J, Pernot P, Fresnais J, Baccile N. Ca 2+ and Ag + orient low-molecular weight amphiphile self-assembly into "nano-fishnet" fibrillar hydrogels with unusual β-sheet-like raft domains. SOFT MATTER 2023; 19:378-393. [PMID: 36562421 DOI: 10.1039/d2sm01218a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Low-molecular weight gelators (LMWGs) are small molecules (Mw < ∼1 kDa), which form self-assembled fibrillar network (SAFiN) hydrogels in water when triggered by an external stimulus. A great majority of SAFiN gels involve an entangled network of self-assembled fibers, in analogy to a polymer in a good solvent. In some rare cases, a combination of attractive van der Waals and repulsive electrostatic forces drives the formation of bundles with a suprafibrillar hexagonal order. In this work, an unexpected micelle-to-fiber transition is triggered by Ca2+ or Ag+ ions added to a micellar solution of a novel glycolipid surfactant, whereas salt-induced fibrillation is not common for surfactants. The resulting SAFiN, which forms a hydrogel above 0.5 wt%, has a "nano-fishnet" structure, characterized by a fibrous network of both entangled fibers and β-sheet-like rafts, generally observed for silk fibroin, actin hydrogels or mineral imogolite nanotubes, but not known for SAFiNs. The β-sheet-like raft domains are characterized by a combination of cryo-TEM and SAXS and seem to contribute to the stability of glycolipid gels. Furthermore, glycolipid is obtained by fermentation from natural resources (glucose, rapeseed oil), thus showing that naturally engineered compounds can have unprecedented properties, when compared to the wide range of chemically derived amphiphiles.
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Affiliation(s)
- Alexandre Poirier
- Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, F-75005 Paris, France.
| | - Patrick Le Griel
- Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, F-75005 Paris, France.
| | | | - Javier Perez
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP48, 91192 Gif-sur-Yvette Cedex, France
| | - Petra Pernot
- ESRF - The European Synchrotron, CS40220, 38043 Grenoble, France
| | - Jérôme Fresnais
- Sorbonne Université, CNRS, Laboratoire de Physico-chimie des Électrolytes et Nanosystèmes Interfaciaux, PHENIX - UMR 8234, F-75252, Paris Cedex 05, France
| | - Niki Baccile
- Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, F-75005 Paris, France.
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5
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Hierarchical metal-peptide assemblies with chirality-encoded spiral architecture and catalytic activity. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1351-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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6
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Sekitmen GB, Su E, Gür SD, İde S, Okay O. Sterilization studies of hydrogel nanocomposites designed for possible biomedical applications before in vivo research. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Hui J, Hu Q, Zhuang G, Hu W, Yu J, Liu Y, Li T, Fan L, Huang J, Wang XL, Zhang X, Ren Y, Wang H. Synchrotron X-Ray-Driven Nitrogen Reduction on an AgCu Thin Film. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202720. [PMID: 35637629 DOI: 10.1002/smll.202202720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Nitrogen (N2 ) is an essential element for life, but kinetically stable N2 in the atmosphere needs to be reduced to biologically available forms as a nutrient for organisms. Abiotic nitrogen fixation is critical to the origin of life on the early Earth, which is due to lightning or mineral-based reduction. Here, synchrotron X-ray-induced silver nitrate formation on a silver copper (AgCu) thin-film is reported. Time-resolved X-ray diffraction measurements show that under intense X-ray exposure, initially formed silver oxides (AgOx) are quickly converted to silver nitrate (AgNO3 ). Interestingly, AgNO3 is first formed in its high-temperature phase with a space group of R3cH, which gradually transforms to the room temperature phase with a space group of Pbca under continuous X-ray irradiation. The result not only provides a new clue about the abiotic nitrogen reduction prior to life but also demonstrates a novel strategy of materials synthesis using synchrotron X-rays.
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Affiliation(s)
- Jian Hui
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qingyun Hu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Genmao Zhuang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wenhui Hu
- Department of Chemistry, Marquette University, Milwaukee, WI, 53201, USA
| | - Jin Yu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Yuzi Liu
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Tianyi Li
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Longlong Fan
- Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing, 100049, China
| | - Jier Huang
- Department of Chemistry, Marquette University, Milwaukee, WI, 53201, USA
| | - Xun-Li Wang
- Department of Physics, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
- Centre for Neutron Scattering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xiaoyi Zhang
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Yang Ren
- Department of Physics, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
- Centre for Neutron Scattering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Hong Wang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
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8
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Hui J, Yu J, Luo Y, Hu W, Liu Y, Hu Q, Wang K, Li T, Zhou X, Huang J, Zhang X, Ren Y, Wang H. Synchrotron X-ray-induced Synthesis of Copper Hydroxide Nitrate Nanoplates on Cu Thin Films in an Ambient Atmosphere. ACS APPLIED MATERIALS & INTERFACES 2022; 14:23342-23347. [PMID: 35549025 DOI: 10.1021/acsami.2c01329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Synchrotron X-rays are widely used for material characterizations. However, they can also ionize atoms and molecules to damage and manipulate probed materials. We report here an X-ray-induced growth of copper hydroxide nitrate, Cu2(OH)3NO3, on copper thin films in the ambient atmosphere without solvents and thermal treatment. In situ synchrotron X-ray diffraction measurements showed that the time-dependent growth process of theCu2(OH)3NO3 is accompanied by the consumption of Cu metal and can be described by a sigmoidal model. The growth rate was reduced after the initial fast growth period. Scanning electron microscopy (SEM) images show that the isolated islands of Cu2(OH)3NO3 nanoplates formed in the beginning, which grew together with new nanoplates formed under continued X-ray irradiation. The result demonstrated that high-flux synchrotron X-rays may provide an unconventional approach to synthesizing and manipulating materials, which will inspire future investigation both experimentally and theoretically.
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Affiliation(s)
- Jian Hui
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jin Yu
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yuxi Luo
- Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenhui Hu
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, United States
| | - Yuzi Liu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Qingyun Hu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Kailin Wang
- Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tianyi Li
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Xinwei Zhou
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jier Huang
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, United States
| | - Xiaoyi Zhang
- X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yang Ren
- Department of Physics, City University of Hong Kong, Kowloon 999077, Hong Kong, China
- Centre for Neutron Scattering, City University of Hong Kong, Kowloon 999077, Hong Kong, China
| | - Hong Wang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, China
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9
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The crystallization of decanoic acid/dopamine supramolecular self-assemblies in the presence of coacervates. J Colloid Interface Sci 2022; 615:759-767. [PMID: 35176542 DOI: 10.1016/j.jcis.2022.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 11/20/2022]
Abstract
HYPOTHESIS Supramolecular self-assemblies involving non-covalent interactions play important roles in material science as well as living systems as they result in unique properties and/or functions. However, understanding of their self-assembly mechanism and crystallization has remained rudimentary. EXPERIMENT Here, we focus on biomolecular fatty acid and dopamine, which commonly exist in biological systems and closely related to neurodegenerative diseases, and investigate their self-assembly pathway by optical and fluorescence microscopy, DLS, SAXS, TEM, 2D-NMR, etc. FINDINGS: It is found that they could form the crystalline plates in solution or via a metastable liquid - liquid phase separation (LLPS). The nucleation and growth of crystalline plates observed occurs in solution or the dilute phase of LLPS, and not within the concentrated coacervate phase. This is because in coacervate, dopamine intercalates into fatty acid through hydrophobic and electrostatic interaction, which hinders the rearrangement of molecules and nucleation process, whereas in solution or dilute phase, they have the mobility to arrange into ordered structures to maximize electrostatic, hydrogen bonding and π-π interactions, leading to nucleation and crystallization. Moreover, the transitions between the coacervates and crystalline phase can be realized by adjusting the temperature. Our results shed light on the multistep nucleation in the presence of LLPS, as well as molecular mechanisms involved, thus further extending the nucleation-growth mechanisms.
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10
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Shen Y, Wang Y, Hamley IW, Qi W, Su R, He Z. Chiral self-assembly of peptides: Toward the design of supramolecular polymers with enhanced chemical and biological functions. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Bras W, Myles DAA, Felici R. When x-rays alter the course of your experiments. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:423002. [PMID: 34298526 DOI: 10.1088/1361-648x/ac1767] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
The continuing increase in the brilliance of synchrotron radiation beamlines allows for many new and exciting experiments that were impossible before the present generation of synchrotron radiation sources came on line. However, the exposure to such intense beams also tests the limits of what samples can endure. Whilst the effects of radiation induced damage in a static experiment often can easily be recognized by changes in the diffraction or spectroscopy curves, the influence of radiation on chemical or physical processes, where one expects curves to change, is less often recognized and can be misinterpreted as a 'real' result instead of as a 'radiation influenced result'. This is especially a concern in time-resolved materials science experiments using techniques as powder diffraction, small angle scattering and x-ray absorption spectroscopy. Here, the effects of radiation (5-50 keV) on some time-resolved processes in different types of materials and in different physical states are discussed. We show that such effects are not limited to soft matter and biology but rather can be found across the whole spectrum of materials research, over a large range of radiation doses and is not limited to very high brilliance beamlines.
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Affiliation(s)
- Wim Bras
- Chemical Sciences Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge TN 37831, United States of America
| | - Dean A A Myles
- Neutron Scattering Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge TN 37831, United States of America
| | - Roberto Felici
- CNR-SPIN, Area della ricerca di Tor Vergata, via del Fosso del Cavaliere 100, 00133 Roma, Italy
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12
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Sangji MH, Sai H, Chin SM, Lee SR, R Sasselli I, Palmer LC, Stupp SI. Supramolecular Interactions and Morphology of Self-Assembling Peptide Amphiphile Nanostructures. NANO LETTERS 2021; 21:6146-6155. [PMID: 34259001 DOI: 10.1021/acs.nanolett.1c01737] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The morphology of supramolecular peptide nanostructures is difficult to predict given their complex energy landscapes. We investigated peptide amphiphiles containing β-sheet forming domains that form twisted nanoribbons in water. We explained the morphology based on a balance between the energetically favorable packing of molecules in the center of the nanostructures, the unfavorable packing at the edges, and the deformations due to packing of twisted β-sheets. We find that morphological polydispersity of PA nanostructures is determined by peptide sequences, and the twisting of their internal β-sheets. We also observed a change in the supramolecular chirality of the nanostructures as the peptide sequence was modified, although only amino acids with l-configuration were used. Upon increasing charge repulsion between molecules, we observed a change in morphology to long cylinders and then rodlike fragments and spherical micelles. Understanding the self-assembly mechanisms of peptide amphiphiles into nanostructures should be useful to optimize their well-known functions.
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Affiliation(s)
- M Hussain Sangji
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Stacey M Chin
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Sieun Ruth Lee
- Department of Materials Science and Engineering, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N St. Clair, Chicago, Illinois 60611, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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13
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Wang Y, Li Q, Zhang J, Qi W, You S, Su R, He Z. Self-Templated, Enantioselective Assembly of an Amyloid-like Dipeptide into Multifunctional Hierarchical Helical Arrays. ACS NANO 2021; 15:9827-9840. [PMID: 34047550 DOI: 10.1021/acsnano.1c00746] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chiral self-assembly of peptides has attracted great interest owing to their promising applications in biomedicine, chemistry, and materials science. However, compared with the rich knowledge about their chiral self-assembly at the molecular or nanoscale, the formation of long-range-ordered hierarchical helical arrays (HHAs) from simple peptides remains a formidable challenge. Herein, we report the self-templated assembly of an amyloid-like dipeptide into long-range-ordered HHAs by their spontaneous fibrillization and hierarchical helical assembly within a confined film. The chiral interactions between the peptide and diamines result in geometry frustration and the phase transition of self-assembling peptide films from achiral spherulite structures into chiral HHAs. By changing the chirality and enantioselective interactions, we can control the phase behavior, handedness, and chiroptics of the self-assembled HHAs precisely. Moreover, the redox activity of the HHAs allows the in situ decoration of nanoparticles with high catalytic activity. These results provide insights into the chiral self-assembly of peptides and the fabrication of highly ordered materials with complex architectures and promising applications in chiroptics and catalysis.
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Affiliation(s)
- Yuefei Wang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, People's Republic of China
| | - Qing Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People's Republic of China
| | - Jiaxing Zhang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People's Republic of China
| | - Wei Qi
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, People's Republic of China
| | - Shengping You
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, People's Republic of China
| | - Rongxin Su
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, People's Republic of China
| | - Zhimin He
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, People's Republic of China
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14
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Dannenhoffer AJ, Sai H, Harutyunyan B, Narayanan A, Powers-Riggs NE, Edelbrock AN, Passarelli JV, Weigand SJ, Wasielewski MR, Bedzyk MJ, Palmer LC, Stupp SI. Growth of Extra-Large Chromophore Supramolecular Polymers for Enhanced Hydrogen Production. NANO LETTERS 2021; 21:3745-3752. [PMID: 33877843 DOI: 10.1021/acs.nanolett.0c05024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The control of morphology in bioinspired chromophore assemblies is key to the rational design of functional materials for light harvesting. We investigate here morphological changes in perylene monoimide chromophore assemblies during thermal annealing in aqueous environments of high ionic strength to screen electrostatic repulsion. We found that annealing under these conditions leads to the growth of extra-large ribbon-shaped crystalline supramolecular polymers of widths from about 100 nm to several micrometers and lengths from 1 to 10 μm while still maintaining a unimolecular thickness. This growth process was monitored by variable-temperature absorbance spectroscopy, synchrotron X-ray scattering, and confocal microscopy. The extra-large single-crystal-like supramolecular polymers are highly porogenic, thus creating loosely packed hydrogel scaffolds that showed greatly enhanced photocatalytic hydrogen production with turnover numbers as high as 13 500 over ∼110 h compared to 7500 when smaller polymers are used. Our results indicate great functional opportunities in thermally and pathway-controlled supramolecular polymerization.
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Affiliation(s)
- Adam J Dannenhoffer
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Boris Harutyunyan
- Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ashwin Narayanan
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Natalia E Powers-Riggs
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Alexandra N Edelbrock
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - James V Passarelli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Steven J Weigand
- Dow-Northwestern-DuPont Collaborative Access Team Synchrotron Research Center, Northwestern University, 9700 South Cass Avenue, Argonne, Illinois 60439 United States
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael J Bedzyk
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Liam C Palmer
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 East Superior Street, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 North Saint Clair, Chicago, Illinois 60611, United States
- Simpson Querrey Institute, Northwestern University, 303 East Superior Street, Chicago, Illinois 60611, United States
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15
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Webber MJ, Pashuck ET. (Macro)molecular self-assembly for hydrogel drug delivery. Adv Drug Deliv Rev 2021; 172:275-295. [PMID: 33450330 PMCID: PMC8107146 DOI: 10.1016/j.addr.2021.01.006] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 01/15/2023]
Abstract
Hydrogels prepared via self-assembly offer scalable and tunable platforms for drug delivery applications. Molecular-scale self-assembly leverages an interplay of attractive and repulsive forces; drugs and other active molecules can be incorporated into such materials by partitioning in hydrophobic domains, affinity-mediated binding, or covalent integration. Peptides have been widely used as building blocks for self-assembly due to facile synthesis, ease of modification with bioactive molecules, and precise molecular-scale control over material properties through tunable interactions. Additional opportunities are manifest in stimuli-responsive self-assembly for more precise drug action. Hydrogels can likewise be fabricated from macromolecular self-assembly, with both synthetic polymers and biopolymers used to prepare materials with controlled mechanical properties and tunable drug release. These include clinical approaches for solubilization and delivery of hydrophobic drugs. To further enhance mechanical properties of hydrogels prepared through self-assembly, recent work has integrated self-assembly motifs with polymeric networks. For example, double-network hydrogels capture the beneficial properties of both self-assembled and covalent networks. The expanding ability to fabricate complex and precise materials, coupled with an improved understanding of biology, will lead to new classes of hydrogels specifically tailored for drug delivery applications.
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Affiliation(s)
- Matthew J Webber
- University of Notre Dame, Department of Chemical & Biomolecular Engineering, Notre Dame, IN 46556, USA.
| | - E Thomas Pashuck
- Lehigh University, Department of Bioengineering, Bethlehem, PA 18015, USA.
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16
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Wang J, Li H, Xu B. Biological functions of supramolecular assemblies of small molecules in cellular environment. RSC Chem Biol 2021; 2:289-305. [PMID: 34423303 PMCID: PMC8341129 DOI: 10.1039/d0cb00219d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 01/05/2021] [Indexed: 12/29/2022] Open
Abstract
Like biomacromolecules, certain small molecules (e.g., aggregators) are able to self-assemble in aqueous phase to form nanoscale aggregates. Though it is well-established that the aggregates may interact with enzymes in vitro, the study of the biological activities of the assemblies of small molecules in cellular environment is only at its beginning. This review summarizes the recent progresses in exploring the biological functions of supramolecular assemblies of small molecules (SASMs). We first discuss the use of SASMs to inhibit pathogenic cells, such as cancer cells and bacteria. The use of SASMs to target different parts of cancer cells, such as pericellular space, cytosol, and subcellular organelles, and to combine with other bioactive entities (e.g., proteins and clinically used drugs), is particularly promising for addressing the challenge of acquired multidrug resistance in cancer therapy. Then, we describe the use of SASMs to sustain physiological functions of normal cells, that is, promoting cells proliferation and differentiation for tissue regeneration. After that, we show the use of SASMs as a basic tool to research cell behaviors, for instance, identifying the specific cells, improving enzyme probes, revealing membrane dynamics, enhancing molecular imaging, and mimicking context-dependent signaling. Finally, we give the outlook of the research of SASMs. We expect that this review, by highlighting the biological functions of SASMs, provides a starting point to explore the chemical biology of SASMs.
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Affiliation(s)
- Jingyu Wang
- School of Biomedical Engineering and Technology, Tianjin Medical UniversityTianjin 300070P. R. China
| | - Hui Li
- School of Biomedical Engineering and Technology, Tianjin Medical UniversityTianjin 300070P. R. China
| | - Bing Xu
- Department of Chemistry, Brandeis UniversityWalthamMassachusetts 02454USA
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17
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Uchida N, Muraoka T. Current Progress in Cross-Linked Peptide Self-Assemblies. Int J Mol Sci 2020; 21:E7577. [PMID: 33066439 PMCID: PMC7589166 DOI: 10.3390/ijms21207577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 02/07/2023] Open
Abstract
Peptide-based fibrous supramolecular assemblies represent an emerging class of biomaterials that can realize various bioactivities and structures. Recently, a variety of peptide fibers with attractive functions have been designed together with the discovery of many peptide-based self-assembly units. Cross-linking of the peptide fibers is a key strategy to improve the functions of these materials. The cross-linking of peptide fibers forming three-dimensional networks in a dispersion can lead to changes in physical and chemical properties. Hydrogelation is a typical change caused by cross-linking, which makes it applicable to biomaterials such as cell scaffold materials. Cross-linking methods, which have been conventionally developed using water-soluble covalent polymers, are also useful in supramolecular peptide fibers. In the case of peptide fibers, unique cross-linking strategies can be designed by taking advantage of the functions of amino acids. This review focuses on the current progress in the design of cross-linked peptide fibers and their applications.
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Affiliation(s)
- Noriyuki Uchida
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Takahiro Muraoka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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18
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Abstract
Enzymatic reactions and noncovalent (i.e., supramolecular) interactions are two fundamental nongenetic attributes of life. Enzymatic noncovalent synthesis (ENS) refers to a process where enzymatic reactions control intermolecular noncovalent interactions for spatial organization of higher-order molecular assemblies that exhibit emergent properties and functions. Like enzymatic covalent synthesis (ECS), in which an enzyme catalyzes the formation of covalent bonds to generate individual molecules, ENS is a unifying theme for understanding the functions, morphologies, and locations of molecular ensembles in cellular environments. This review intends to provide a summary of the works of ENS within the past decade and emphasize ENS for functions. After comparing ECS and ENS, we describe a few representative examples where nature uses ENS, as a rule of life, to create the ensembles of biomacromolecules for emergent properties/functions in a myriad of cellular processes. Then, we focus on ENS of man-made (synthetic) molecules in cell-free conditions, classified by the types of enzymes. After that, we introduce the exploration of ENS of man-made molecules in the context of cells by discussing intercellular, peri/intracellular, and subcellular ENS for cell morphogenesis, molecular imaging, cancer therapy, and other applications. Finally, we provide a perspective on the promises of ENS for developing molecular assemblies/processes for functions. This review aims to be an updated introduction for researchers who are interested in exploring noncovalent synthesis for developing molecular science and technologies to address societal needs.
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Affiliation(s)
- Hongjian He
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Weiyi Tan
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Jiaqi Guo
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Meihui Yi
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Adrianna N Shy
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
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19
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Feng Z, Wang H, Wang F, Oh Y, Berciu C, Cui Q, Egelman EH, Xu B. Artificial Intracellular Filaments. CELL REPORTS. PHYSICAL SCIENCE 2020; 1:100085. [PMID: 32776017 PMCID: PMC7413147 DOI: 10.1016/j.xcrp.2020.100085] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Intracellular protein filaments are ubiquitous for cellular functions, but forming bona fide biomimetic intracellular filaments of small molecules in living cells remains elusive. Here, we report the in situ formation of self-limiting intracellular filaments of a small peptide via enzymatic morphological transition of a phosphorylated and trimethylated heterochiral tetrapeptide. Enzymatic dephosphorylation reduces repulsive intermolecular electrostatic interactions and converts the peptidic nanoparticles into filaments, which exhibit distinct types of cross-β structures with either C7 or C2 symmetries, with the hydrophilic C-terminal residues at the periphery of the helix. Macromolecular crowding promotes the peptide filaments to form bundles, which extend from the plasma membrane to nuclear membrane and hardly interact with endogenous components, including cytoskeletons. Stereochemistry and post-translational modification (PTM) of peptides are critical for generating the intracellular bundles. This work may offer a way to gain lost functions or to provide molecular insights for understanding normal and aberrant intracellular filaments.
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Affiliation(s)
- Zhaoqianqi Feng
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02454, USA
- These authors contributed equally
| | - Huaimin Wang
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02454, USA
- These authors contributed equally
| | - Fengbin Wang
- Department of Biochemistry and Molecular Genetics, University of Virginia, Box 800733, Charlottesville, VA 22908-0733, USA
| | - Younghoon Oh
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
- Rafik B. Hariri Institute for Computing and Computational Science & Engineering, Boston University, 111 Cummington Mall, Boston, MA 02215, USA
- Department of Chemistry and Research Institute for Basic Science, Sogang University, Seoul 04107, Republic of Korea
| | - Cristina Berciu
- Microscopy Core Facility, McLean Hospital, Belmont, MA 02478, USA
| | - Qiang Cui
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
| | - Edward H. Egelman
- Department of Biochemistry and Molecular Genetics, University of Virginia, Box 800733, Charlottesville, VA 22908-0733, USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, MA 02454, USA
- Lead Contact
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20
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Wester JR, Lewis JA, Freeman R, Sai H, Palmer LC, Henrich SE, Stupp SI. Supramolecular Exchange among Assemblies of Opposite Charge Leads to Hierarchical Structures. J Am Chem Soc 2020; 142:12216-12225. [DOI: 10.1021/jacs.0c03529] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- James R. Wester
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
| | - Jacob A. Lewis
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Ronit Freeman
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Liam C. Palmer
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Stephen E. Henrich
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Samuel I. Stupp
- Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
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21
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Wychowaniec J, Smith AM, Ligorio C, Mykhaylyk OO, Miller AF, Saiani A. Role of Sheet-Edge Interactions in β-sheet Self-Assembling Peptide Hydrogels. Biomacromolecules 2020; 21:2285-2297. [PMID: 32275138 PMCID: PMC7304824 DOI: 10.1021/acs.biomac.0c00229] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/08/2020] [Indexed: 12/11/2022]
Abstract
Hydrogels' hydrated fibrillar nature makes them the material of choice for the design and engineering of 3D scaffolds for cell culture, tissue engineering, and drug-delivery applications. One particular class of hydrogels which has been the focus of significant research is self-assembling peptide hydrogels. In the present work, we were interested in exploring how fiber-fiber edge interactions affect the self-assembly and gelation properties of amphipathic peptides. For this purpose, we investigated two β-sheet-forming peptides, FEFKFEFK (F8) and KFEFKFEFKK (KF8K), the latter one having the fiber edges covered by lysine residues. Our results showed that the addition of the two lysine residues did not affect the ability of the peptides to form β-sheet-rich fibers, provided that the overall charge carried by the two peptides was kept constant. However, it did significantly reduce edge-driven hydrophobic fiber-fiber associative interactions, resulting in reduced tendency for KF8K fibers to associate/aggregate laterally and form large fiber bundles and consequently network cross-links. This effect resulted in the formation of hydrogels with lower moduli but faster dynamics. As a result, KF8K fibers could be aligned only under high shear and at high concentration while F8 hydrogel fibers were found to align readily at low shear and low concentration. In addition, F8 hydrogels were found to fragment at high concentration because of the high aggregation state stabilizing the fiber bundles, resulting in fiber breakage rather than disentanglement and alignment.
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Affiliation(s)
- Jacek
K. Wychowaniec
- School
of Materials, The University of Manchester, Oxford Road, M13 9PL Manchester, U.K.
- Manchester
Institute of Biotechnology, The University
of Manchester, Oxford
Road, M13 9PL Manchester, U.K.
| | - Andrew M. Smith
- School
of Materials, The University of Manchester, Oxford Road, M13 9PL Manchester, U.K.
- Manchester
Institute of Biotechnology, The University
of Manchester, Oxford
Road, M13 9PL Manchester, U.K.
| | - Cosimo Ligorio
- School
of Materials, The University of Manchester, Oxford Road, M13 9PL Manchester, U.K.
- Manchester
Institute of Biotechnology, The University
of Manchester, Oxford
Road, M13 9PL Manchester, U.K.
| | - Oleksandr O. Mykhaylyk
- Soft
Matter Analytical Laboratory, Dainton Building, Department of Chemistry, The University of Sheffield, Sheffield S3 7HF, U.K.
| | - Aline F. Miller
- Manchester
Institute of Biotechnology, The University
of Manchester, Oxford
Road, M13 9PL Manchester, U.K.
- School
of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, M13 9PL Manchester, U.K.
| | - Alberto Saiani
- School
of Materials, The University of Manchester, Oxford Road, M13 9PL Manchester, U.K.
- Manchester
Institute of Biotechnology, The University
of Manchester, Oxford
Road, M13 9PL Manchester, U.K.
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22
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Yao Z. Stress-induced ordering of two-dimensional packings of elastic spheres. Phys Rev E 2020; 101:062904. [PMID: 32688544 DOI: 10.1103/physreve.101.062904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Packing of particles in confined environments is a common problem in multiple fields. Here, based on the two-dimensional Hertzian particle model, we study the packing of deformable spherical particles under compression and reveal the crucial role of stress as an ordering field in regulating particle arrangement. Specifically, under increasing compression, the squeezed particles spontaneously organize into regular packings in the sequence of triangular and square lattices, pentagonal tessellation, and the reentrant triangular lattice. The rich ordered patterns and complex structures revealed in this work suggest a fruitful organizational strategy based on the interplay of external stress and intrinsic elastic instability of particle arrays.
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Affiliation(s)
- Zhenwei Yao
- School of Physics and Astronomy, and Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
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23
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Lu X, Fu H, Shih KC, Jia F, Sun Y, Wang D, Wang Y, Ekatan S, Nieh MP, Lin Y, Zhang K. DNA-Mediated Step-Growth Polymerization of Bottlebrush Macromonomers. J Am Chem Soc 2020; 142:10297-10301. [PMID: 32453555 DOI: 10.1021/jacs.0c03806] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein, we report the DNA-mediated self-assembly of bivalent bottlebrush polymers, a process akin to the step-growth polymerization of small molecule monomers. In these "condensation reactions", the polymer serves as a steric guide to limit DNA hybridization in a fixed direction, while the DNA serves as a functional group equivalent, connecting complementary brushes to form well-defined, one-dimensional nanostructures. The polymerization was studied using spectroscopy, microscopy, and scattering techniques and was modeled numerically. The model made predictions of the degree of polymerization and size distribution of the assembled products, and suggested the potential for branching at hybridization junctions, all of which were confirmed experimentally. This study serves as a theoretical basis for the polymer-assembly approach which has the potential to open up new possibilities for suprapolymers with controlled architecture, macromonomer sequence, and end-group functionalities.
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Affiliation(s)
- Xueguang Lu
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Hailin Fu
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Kuo-Chih Shih
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Fei Jia
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Yehui Sun
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Dali Wang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Yuyan Wang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
| | - Stephen Ekatan
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Mu-Ping Nieh
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Yao Lin
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ke Zhang
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts 02115, United States
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24
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VandenBerg MA, Sahoo JK, Zou L, McCarthy W, Webber MJ. Divergent Self-Assembly Pathways to Hierarchically Organized Networks of Isopeptide-Modified Discotics under Kinetic Control. ACS NANO 2020; 14:5491-5505. [PMID: 32297733 DOI: 10.1021/acsnano.9b09610] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Natural proteins traverse complex free energy landscapes to assemble into hierarchically organized structures, often through stimuli-directed kinetic pathways in response to relevant biological cues. Bioinspired strategies have sought to emulate the complexity, dynamicity, and modularity exhibited in these natural processes with synthetic analogues. However, these efforts are limited by many factors that complicate the rational design and predictable assembly of synthetic constructs, especially in aqueous environments. Herein, a model discotic amphiphile gelator is described that undergoes pathway-dependent structural maturation when exposed to varying application rates of a pH stimulus, investigated by electron microscopy, spectroscopy, and X-ray scattering techniques. Under the direction of a slowly changing pH stimulus, complex hierarchical assemblies result, characterized by mesoscale elongated "superstructure" bundles embedded in a percolated mesh of narrow nanofibers. In contrast, the assembly under a rapidly applied pH stimulus is characterized by homogeneous structures that are reminiscent of the superstructures arising from the more deliberate path, except with significantly reduced scale and concomitantly large increases in bulk rheological properties. This synthetic system bears resemblance to the pathway complexity and hierarchical ordering observed for native structures, such as collagen, and points to fundamental design principles that might be applied toward enhanced control of the properties of supramolecular self-assembly across length scales.
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Affiliation(s)
- Michael A VandenBerg
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jugal Kishore Sahoo
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Lei Zou
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - William McCarthy
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Matthew J Webber
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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25
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Huang N, Tao J, Wei S, Huang W, Wang D. Positional Order in the Columnar Phase of Lyotropic Chromonic Liquid Crystals Mediated by Ionic Additives. ACS OMEGA 2020; 5:9937-9943. [PMID: 32391481 PMCID: PMC7203950 DOI: 10.1021/acsomega.0c00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
Positional order in the lyotropic chromonic liquid crystals (LCLCs) is investigated in the supramolecular assembly of benzene 1,3,5-tricarboxamide (BTA) derivatives with the glucono-delta-lactone (GdL) acid additive by high-resolution synchrotron radiation small-angle X-ray scattering. The formation of positionally ordered hexagonal phase is found to profoundly depend on the concentrations of BTA derivatives, c BTA, and GdL additives, c addtive, giving rise to unusual behavior distinctive from conventional lyotropic liquid crystals (LCs) with covalent bonds and fixed length. The hexagonal phase is observed to coexist with another phase in certain range of c addtive/c BTA. Intriguingly, the lattice spacing R of the hexagonal phase remains almost constant by varying c addtive but changes with c BTA. The above observations are attributed to unique sensitivities of the LCLC properties, such as the contour length and flexibility of individual cylinder assemblies and phase coexistence, to additives in the solutions. Our study reveals the complexity in positional ordering in the LCLCs which not only relates to the underlying principles of hierarchical reversible self-assembly but also attracts fundamental interests in LCs.
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Affiliation(s)
- Ningdong Huang
- Hefei
National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Jiaojiao Tao
- National
Synchrotron Radiation Laboratory, University
of Science and Technology of China, Hefei 230029, China
| | - Shenghui Wei
- National
Synchrotron Radiation Laboratory, University
of Science and Technology of China, Hefei 230029, China
| | - Weiheng Huang
- National
Synchrotron Radiation Laboratory, University
of Science and Technology of China, Hefei 230029, China
| | - Daoliang Wang
- National
Synchrotron Radiation Laboratory, University
of Science and Technology of China, Hefei 230029, China
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26
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Self-assembling and self-formulating prodrug hydrogelator extends survival in a glioblastoma resection and recurrence model. J Control Release 2020; 319:311-321. [DOI: 10.1016/j.jconrel.2020.01.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/19/2019] [Accepted: 01/03/2020] [Indexed: 01/01/2023]
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27
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Yuan C, Levin A, Chen W, Xing R, Zou Q, Herling TW, Challa PK, Knowles TPJ, Yan X. Nucleation and Growth of Amino Acid and Peptide Supramolecular Polymers through Liquid–Liquid Phase Separation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911782] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chengqian Yuan
- State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Aviad Levin
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Wei Chen
- State Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Ruirui Xing
- State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Qianli Zou
- State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
| | - Therese W. Herling
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Pavan Kumar Challa
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Tuomas P. J. Knowles
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
- Cavendish LaboratoryUniversity of Cambridge CB3 0FE Cambridge UK
| | - Xuehai Yan
- State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
- Center for MesoscienceInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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28
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Yuan C, Levin A, Chen W, Xing R, Zou Q, Herling TW, Challa PK, Knowles TPJ, Yan X. Nucleation and Growth of Amino Acid and Peptide Supramolecular Polymers through Liquid-Liquid Phase Separation. Angew Chem Int Ed Engl 2019; 58:18116-18123. [PMID: 31617663 DOI: 10.1002/anie.201911782] [Citation(s) in RCA: 198] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Indexed: 12/17/2022]
Abstract
The transition of peptides and proteins from the solution phase into fibrillar structures is a general phenomenon encountered in functional and aberrant biology and is increasingly exploited in soft materials science. However, the fundamental molecular events underpinning the early stages of their assembly and subsequent growth have remained challenging to elucidate. Here, we show that liquid-liquid phase separation into solute-rich and solute-poor phases is a fundamental step leading to the nucleation of supramolecular nanofibrils from molecular building blocks, including peptides and even amphiphilic amino acids. The solute-rich liquid droplets act as nucleation sites, allowing the formation of thermodynamically favorable nanofibrils following Ostwald's step rule. The transition from solution to liquid droplets is entropy driven while the transition from liquid droplets to nanofibrils is mediated by enthalpic interactions and characterized by structural reorganization. These findings shed light on how the nucleation barrier toward the formation of solid phases can be lowered through a kinetic mechanism which proceeds through a metastable liquid phase.
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Affiliation(s)
- Chengqian Yuan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Aviad Levin
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Wei Chen
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Ruirui Xing
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Qianli Zou
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Therese W Herling
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Pavan Kumar Challa
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Tuomas P J Knowles
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.,Cavendish Laboratory, University of Cambridge, CB3 0FE, Cambridge, UK
| | - Xuehai Yan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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29
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30
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Wang Y, Feng Y, Yang X, Wang J, Qi W, Yang X, Liu X, Xing Q, Su R, He Z. Polyamine-induced, chiral expression from liquid crystalline peptide nanofilaments to long-range ordered nanohelices. SOFT MATTER 2019; 15:4818-4826. [PMID: 31179471 DOI: 10.1039/c8sm02554a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We reported the condensation and transformation of peptide micelles into well-defined nanohelices through the incorporation of natural polyamines. The liquid-crystalline peptide micelles are assembled by a short dipeptide amphiphile driven by strong electrostatic repulsions and aromatic stacking attractions. By incorporating polyamines into the peptide solutions, like-charge attractions were achieved to induce the condensation of the like-charged nanofilaments into giant bundles. Intriguingly, by increasing the temperature or electrostatic screening effects, the nanofilaments within the bundles fuse with each other into well-defined flat ribbons which then spontaneously twisted into macroscopically aligned nanohelices. Moreover, the chiral interactions between the aromatic groups of adjacent peptides are inverted from right-handedness to left-handedness during the formation of nanohelices. The results provide new insights into the chiral evolution during peptide self-assembly and offer opportunities for the design of peptide materials with new properties, such as anisotropic hydrogels and long-range ordered chiral nanostructures.
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Affiliation(s)
- Yuefei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China.
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31
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Huang W, Wei S, Frenkel D, Huang N. The pathway and kinetics of hierarchical assembly of ionic oligomers into a lyotropic columnar phase. SOFT MATTER 2019; 15:4460-4466. [PMID: 30994153 DOI: 10.1039/c9sm00383e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ionic benzene-1,3,5-tricarboxamide (BTA) molecules can self-assemble into hollow cylinders which further arrange into columnar phases in water. In situ investigations suggest a multi-step pathway of supramolecular assembly via formation of dispersed molecular aggregates followed by a less ordered intermediate phase before the equilibrium columnar phase is formed. The pathway and kinetics of the formation of lyotropic LC phases through hierarchical supramolecular assembly are similar to non-classical crystallization, in line with an emerging holistic view on crystallization and self-assembly.
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Affiliation(s)
- Weiheng Huang
- National Synchrotron Radiation Lab, University of Science and Technology of China, Hefei, China.
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32
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Papkov D, Delpouve N, Delbreilh L, Araujo S, Stockdale T, Mamedov S, Maleckis K, Zou Y, Andalib MN, Dargent E, Dravid VP, Holt MV, Pellerin C, Dzenis YA. Quantifying Polymer Chain Orientation in Strong and Tough Nanofibers with Low Crystallinity: Toward Next Generation Nanostructured Superfibers. ACS NANO 2019; 13:4893-4927. [PMID: 31038925 DOI: 10.1021/acsnano.8b08725] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Advanced fibers revolutionized structural materials in the second half of the 20th century. However, all high-strength fibers developed to date are brittle. Recently, pioneering simultaneous ultrahigh strength and toughness were discovered in fine (<250 nm) individual electrospun polymer nanofibers (NFs). This highly desirable combination of properties was attributed to high macromolecular chain alignment coupled with low crystallinity. Quantitative analysis of the degree of preferred chain orientation will be crucial for control of NF mechanical properties. However, quantification of supramolecular nanoarchitecture in NFs with low crystallinity in the ultrafine diameter range is highly challenging. Here, we discuss the applicability of traditional as well as emerging methods for quantification of polymer chain orientation in nanoscale one-dimensional samples. Advantages and limitations of different techniques are critically evaluated on experimental examples. It is shown that straightforward application of some of the techniques to sub-wavelength-diameter NFs can lead to severe quantitative and even qualitative artifacts. Sources of such size-related artifacts, stemming from instrumental, materials, and geometric phenomena at the nanoscale, are analyzed on the example of polarized Raman method but are relevant to other spectroscopic techniques. A proposed modified, artifact-free method is demonstrated. Outstanding issues and their proposed solutions are discussed. The results provide guidance for accurate nanofiber characterization to improve fundamental understanding and accelerate development of nanofibers and related nanostructured materials produced by electrospinning or other methods. We expect that the discussion in this review will also be useful to studies of many biological systems that exhibit nanofilamentary architectures and combinations of high strength and toughness.
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Affiliation(s)
- Dimitry Papkov
- Department of Mechanical and Materials Engineering , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0526 , United States
- Nebraska Center for Materials and Nanoscience , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0298 , United States
| | - Nicolas Delpouve
- Département Systèmes Désordonnés et Polymères, Equipe Internationale de Recherche et de Caractérisation des Amorphes et des Polymères , Normandie Univ, UNIROUEN, INSA ROUEN, CNRS, GPM , 76000 Rouen , France
| | - Laurent Delbreilh
- Département Systèmes Désordonnés et Polymères, Equipe Internationale de Recherche et de Caractérisation des Amorphes et des Polymères , Normandie Univ, UNIROUEN, INSA ROUEN, CNRS, GPM , 76000 Rouen , France
| | - Steven Araujo
- Département Systèmes Désordonnés et Polymères, Equipe Internationale de Recherche et de Caractérisation des Amorphes et des Polymères , Normandie Univ, UNIROUEN, INSA ROUEN, CNRS, GPM , 76000 Rouen , France
| | - Taylor Stockdale
- Department of Mechanical and Materials Engineering , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0526 , United States
| | - Sergey Mamedov
- Division of HORIBA Instruments, Inc. , HORIBA Scientific , 20 Knightsbridge Road , Piscataway , New Jersey 08854 , United States
| | - Kaspars Maleckis
- Department of Mechanical and Materials Engineering , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0526 , United States
| | - Yan Zou
- Department of Mechanical and Materials Engineering , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0526 , United States
| | - Mohammad Nahid Andalib
- Department of Mechanical and Materials Engineering , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0526 , United States
| | - Eric Dargent
- Département Systèmes Désordonnés et Polymères, Equipe Internationale de Recherche et de Caractérisation des Amorphes et des Polymères , Normandie Univ, UNIROUEN, INSA ROUEN, CNRS, GPM , 76000 Rouen , France
| | - Vinayak P Dravid
- Department of Materials Science and Engineering , Northwestern University , Evanston , Illinois 60208 , United States
| | - Martin V Holt
- Center for Nanoscale Materials , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Christian Pellerin
- Département de chimie , Université de Montréal , Montréal , QC H3C 3J7 , Canada
| | - Yuris A Dzenis
- Department of Mechanical and Materials Engineering , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0526 , United States
- Nebraska Center for Materials and Nanoscience , University of Nebraska-Lincoln , Lincoln , Nebraska 68588-0298 , United States
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33
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Dana A, Tekinay AB, Tekin ED. A comparison of peptide amphiphile nanofiber macromolecular assembly strategies. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2019; 42:63. [PMID: 31115713 DOI: 10.1140/epje/i2019-11827-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
Supramolecular peptide nanofibers that are composed of peptide amphiphile molecules have been widely used for many purposes from biomedical applications to energy conversion. The self-assembly mechanisms of these peptide nanofibers also provide convenient models for understanding the self-assembly mechanisms of various biological supramolecular systems; however, the current theoretical models that explain these mechanisms do not sufficiently explain the experimental results. In this study, we present a new way of modeling these nanofibers that better fits with the experimental data. Molecular dynamics simulations were applied to create model fibers using two different layer models and two different tilt angles. Strikingly, the fibers which were modeled to be tilting the peptide amphiphile molecules and/or tilting the plane were found to be more stable and consistent with the experiments.
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Affiliation(s)
- Aykutlu Dana
- Spilker Engineering & Applied Sciences, Stanford University, 94305, Stanford, CA, USA
| | - Ayse B Tekinay
- Eryigit Medical Devices, Research and Development Center, 06378, Ankara, Turkey
| | - E Deniz Tekin
- Faculty of Engineering, University of Turkish Aeronautical Association, 06790, Ankara, Turkey.
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34
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Shemesh A, Ginsburg A, Levi-Kalisman Y, Ringel I, Raviv U. Structure, Assembly, and Disassembly of Tubulin Single Rings. Biochemistry 2018; 57:6153-6165. [PMID: 30247898 DOI: 10.1021/acs.biochem.8b00560] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Single and double tubulin rings were studied under a range of conditions and during microtubule (MT) assembly and disassembly. Here, tubulin was purified from porcine brain and used without any further modifications or additives that promote ring assembly. The structure of single GDP-rich tubulin rings was determined by cryo-transmission electron microscopy and synchrotron solution X-ray scattering. The scattering curves were fitted to atomic models, using our state-of-the-art analysis software, D+ . We found that there is a critical concentration for ring formation, which increased with GTP concentration with temperature. MT assembly or disassembly, induced by changes in temperature, was analyzed by time-resolved small-angle X-ray scattering. During MT assembly, the fraction of rings and unassembled dimers simultaneously decreased. During MT disassembly, the mass fraction of dimers increased. The increase in the concentration of rings was delayed until the fraction of dimers was sufficiently high. We verified that pure dimers, eluted via size-exclusion chromatography, could also form rings. Interestingly, X-ray radiation triggered tubulin ring disassembly. The concentration of disassembled rings versus exposure time followed a first-order kinetics. The disassembly rate constant and initial concentration were determined. X-ray radiation-triggered disassembly was used to determine the concentration of rings. We confirmed that following a temperature jump, the mass fraction of rings decreased and then stabilized at a constant value during the first stage of the MT assembly kinetics. This study sheds light on the most basic assembly and disassembly conditions for in vitro single GDP-rich tubulin rings and their relation to MT kinetics.
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Affiliation(s)
- Asaf Shemesh
- Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem 9190401 , Israel.,Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 9190401 , Israel
| | - Avi Ginsburg
- Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem 9190401 , Israel.,Institute for Drug Research, School of Pharmacy , The Hebrew University of Jerusalem , Jerusalem 9112102 , Israel
| | - Yael Levi-Kalisman
- Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 9190401 , Israel.,Institute of Life Sciences , The Hebrew University of Jerusalem , Jerusalem 9190401 , Israel
| | - Israel Ringel
- Institute for Drug Research, School of Pharmacy , The Hebrew University of Jerusalem , Jerusalem 9112102 , Israel
| | - Uri Raviv
- Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem 9190401 , Israel.,Center for Nanoscience and Nanotechnology , The Hebrew University of Jerusalem , Jerusalem 9190401 , Israel
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35
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Samad MB, Maddeboina K, Rodrigues de Almeida N, Conda-Sheridan M. Facile Protocol for the Synthesis of Self-assembling Polyamine-based Peptide Amphiphiles (PPAs) and Related Biomaterials. J Vis Exp 2018. [PMID: 29985361 DOI: 10.3791/57908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Polyamine-based Peptide Amphiphiles (PPAs) are a new class of self-assembling amphiphilic biomaterials-related to the peptide amphiphiles (PAs). Traditional PAs possess charged amino acids as solubilizing groups (lysine, arginine), which are directly connected to a lipid segment or can contain a linker region made of neutral amino acids. Tuning the peptide sequence of PAs can yield diverse morphologies. Similarly, PPAs possess a hydrophobic segment and neutral amino acids, but also contain polyamine molecules as water solubilizing (hydrophilic) groups. As is the case with PAs, PPAs can also self-assemble into diverse morphologies, including small rods, twisted nano-ribbons, and fused nano-sheets, when dissolved in water. However, the presence of both primary and secondary amines on a single polyamine molecule poses a significant challenge when synthesizing PPAs. In this paper, we show a simple protocol, based on literature precedents, to achieve a facile synthesis of PPAs using solid phase peptide synthesis (SPPS). This protocol can be extended to the synthesis of PAs and other similar systems. We also illustrate the steps that are needed for cleavage from the resin, identification, and purification.
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Affiliation(s)
- Mehdi Bin Samad
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center
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36
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Chin SM, Synatschke CV, Liu S, Nap RJ, Sather NA, Wang Q, Álvarez Z, Edelbrock AN, Fyrner T, Palmer LC, Szleifer I, Olvera de la Cruz M, Stupp SI. Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators. Nat Commun 2018; 9:2395. [PMID: 29921928 PMCID: PMC6008453 DOI: 10.1038/s41467-018-04800-w] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 05/14/2018] [Indexed: 12/03/2022] Open
Abstract
Skeletal muscle provides inspiration on how to achieve reversible, macroscopic, anisotropic motion in soft materials. Here we report on the bottom-up design of macroscopic tubes that exhibit anisotropic actuation driven by a thermal stimulus. The tube is built from a hydrogel in which extremely long supramolecular nanofibers are aligned using weak shear forces, followed by radial growth of thermoresponsive polymers from their surfaces. The hierarchically ordered tube exhibits reversible anisotropic actuation with changes in temperature, with much greater contraction perpendicular to the direction of nanofiber alignment. We identify two critical factors for the anisotropic actuation, macroscopic alignment of the supramolecular scaffold and its covalent bonding to polymer chains. Using finite element analysis and molecular calculations, we conclude polymer chain confinement and mechanical reinforcement by rigid supramolecular nanofibers are responsible for the anisotropic actuation. The work reported suggests strategies to create soft active matter with molecularly encoded capacity to perform complex tasks.
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Affiliation(s)
- Stacey M Chin
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | | | - Shuangping Liu
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Rikkert J Nap
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, 60208, USA
| | - Nicholas A Sather
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Qifeng Wang
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Zaida Álvarez
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Alexandra N Edelbrock
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Timmy Fyrner
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Igal Szleifer
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, 60208, USA
| | - Monica Olvera de la Cruz
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, IL, 60208, USA
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA.
- Department of Medicine, Northwestern University, Chicago, IL, 60611, USA.
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37
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Christoff-Tempesta T, Lew AJ, Ortony JH. Beyond Covalent Crosslinks: Applications of Supramolecular Gels. Gels 2018; 4:E40. [PMID: 30674816 PMCID: PMC6209248 DOI: 10.3390/gels4020040] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/26/2018] [Accepted: 04/28/2018] [Indexed: 12/25/2022] Open
Abstract
Traditionally, gels have been defined by their covalently cross-linked polymer networks. Supramolecular gels challenge this framework by relying on non-covalent interactions for self-organization into hierarchical structures. This class of materials offers a variety of novel and exciting potential applications. This review draws together recent advances in supramolecular gels with an emphasis on their proposed uses as optoelectronic, energy, biomedical, and biological materials. Additional special topics reviewed include environmental remediation, participation in synthesis procedures, and other industrial uses. The examples presented here demonstrate unique benefits of supramolecular gels, including tunability, processability, and self-healing capability, enabling a new approach to solve engineering challenges.
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Affiliation(s)
- Ty Christoff-Tempesta
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Andrew J Lew
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Julia H Ortony
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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38
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do Nascimento NM, Juste-Dolz A, Bueno PR, Monzó I, Tejero R, Lopez-Paz JL, Maquieira A, Morais S, Gimenez-Romero D. Mapping molecular binding by means of conformational dynamics measurements. RSC Adv 2018; 8:867-876. [PMID: 35538994 PMCID: PMC9076986 DOI: 10.1039/c7ra10617c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/19/2017] [Indexed: 01/15/2023] Open
Abstract
Protein–protein interactions are key in virtually all biological processes. The study of these interactions and the interfaces that mediate them play a key role in the understanding of biological function. In particular, the observation of protein–protein interactions in their dynamic environment is technically difficult. Here two surface analysis techniques, dual polarization interferometry and quartz crystal microbalance with dissipation monitoring, were paired for real-time mapping of the conformational dynamics of protein–protein interactions. Our approach monitors this dynamics in real time and in situ, which is a great advancement within technological platforms for drug discovery. Results agree with the experimental observations of the interaction between the TRIM21α protein and circulating autoantibodies via a bridging bipolar mechanism. This work provides a new chip-based method to monitor conformational dynamics of protein–protein interactions, which is amenable to miniaturized high-throughput determination. Protein–protein interactions are key in virtually all biological processes.![]()
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Affiliation(s)
- Noelle M. do Nascimento
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico
- Departamento de Química
- Universitat Politècnica de València
- s/n Valencia
- Spain
| | - Augusto Juste-Dolz
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico
- Departamento de Química
- Universitat Politècnica de València
- s/n Valencia
- Spain
| | - Paulo R. Bueno
- Instituto de Química
- Univ. Estadual Paulista (UNESP)
- Departamento de Físico-Química
- Nanobionics Research Group
- Araraquara
| | - Isidro Monzó
- Departamento de Química-Física
- Universitat de València
- 46100 Burjassot
- Spain
| | - Roberto Tejero
- Departamento de Química-Física
- Universitat de València
- 46100 Burjassot
- Spain
| | - José L. Lopez-Paz
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico
- Departamento de Química
- Universitat Politècnica de València
- s/n Valencia
- Spain
| | - Angel Maquieira
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico
- Departamento de Química
- Universitat Politècnica de València
- s/n Valencia
- Spain
| | - Sergi Morais
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico
- Departamento de Química
- Universitat Politècnica de València
- s/n Valencia
- Spain
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39
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Thomas Pashuck E. Synthesis of Self-Assembling Peptide-Based Hydrogels for Regenerative Medicine Using Solid-Phase Peptide Synthesis. Methods Mol Biol 2018; 1758:177-192. [PMID: 29679331 DOI: 10.1007/978-1-4939-7741-3_14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Peptide self-assembly is an important field in biomaterials in which short peptides are designed to aggregate into nanostructures that often form hydrogels. These peptides are typically made using solid-phase peptide synthesis (SPPS), a technique in which amino acids are added sequentially to a growing chain. This technique has been used to synthesize peptides with more than 100 amino acids. However, self-assembling peptides are designed to aggregate in solution, which often reduces coupling efficiency during synthesis and makes purification more difficult. Here, an outline of solid-phase peptide synthesis is provided, along with steps that can be used to improve the synthetic yield and purification of self-assembling peptides for regenerative medicine applications.
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Affiliation(s)
- E Thomas Pashuck
- Department of Materials Science and Engineering, Imperial College London, London, UK.
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40
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Abstract
Covalent modification of therapeutic compounds is a clinically proven strategy to devise prodrugs with enhanced treatment efficacies. This prodrug strategy relies on the modified drugs that possess advantageous pharmacokinetic properties and administration routes over their parent drug. Self-assembling prodrugs represent an emerging class of therapeutic agents capable of spontaneously associating into well-defined supramolecular nanostructures in aqueous solutions. The self-assembly of prodrugs expands the functional space of conventional prodrug design, affording a possible pathway to more effective therapies as the assembled nanostructure possesses distinct physicochemical properties and interaction potentials that can be tailored to specific administration routes and disease treatment. In this review, we will discuss the various types of self-assembling prodrugs in development, providing an overview of the methods used to control their structure and function and, ultimately, our perspective on their current and future potential.
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Affiliation(s)
- Andrew G Cheetham
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe Eastern Road, Zhengzhou 450052, Henan, China
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41
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Su H, Wang Y, Anderson CF, Koo JM, Wang H, Cui H. Recent progress in exploiting small molecule peptides as supramolecular hydrogelators. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1998-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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42
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Wang Y, Sun Y, Ding X, Liang J, Cao X, Tian ZQ. A combined electro- and photo-chemical approach to repeatedly fabricate two-dimensional molecular assemblies. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Lee SS, Fyrner T, Chen F, Álvarez Z, Sleep E, Chun DS, Weiner JA, Cook RW, Freshman RD, Schallmo MS, Katchko KM, Schneider AD, Smith JT, Yun C, Singh G, Hashmi SZ, McClendon MT, Yu Z, Stock SR, Hsu WK, Hsu EL, Stupp SI. Sulfated glycopeptide nanostructures for multipotent protein activation. NATURE NANOTECHNOLOGY 2017; 12. [PMID: 28650443 PMCID: PMC5553550 DOI: 10.1038/nnano.2017.109] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Biological systems have evolved to utilize numerous proteins with capacity to bind polysaccharides for the purpose of optimizing their function. A well-known subset of these proteins with binding domains for the highly diverse sulfated polysaccharides are important growth factors involved in biological development and tissue repair. We report here on supramolecular sulfated glycopeptide nanostructures, which display a trisulfated monosaccharide on their surfaces and bind five critical proteins with different polysaccharide-binding domains. Binding does not disrupt the filamentous shape of the nanostructures or their internal β-sheet backbone, but must involve accessible adaptive configurations to interact with such different proteins. The glycopeptide nanostructures amplified signalling of bone morphogenetic protein 2 significantly more than the natural sulfated polysaccharide heparin, and promoted regeneration of bone in the spine with a protein dose that is 100-fold lower than that required in the animal model. These highly bioactive nanostructures may enable many therapies in the future involving proteins.
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Affiliation(s)
- Sungsoo S. Lee
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - Timmy Fyrner
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
| | - Feng Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
| | - Eduard Sleep
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
| | - Danielle S. Chun
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Joseph A. Weiner
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Ralph W. Cook
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Ryan D. Freshman
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Michael S. Schallmo
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Karina M. Katchko
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Andrew D. Schneider
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Justin T. Smith
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Chawon Yun
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Gurmit Singh
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Sohaib Z. Hashmi
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Mark T. McClendon
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
| | - Zhilin Yu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
| | - Stuart R. Stock
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University, Chicago, Illinois 60611, USA
| | - Wellington K. Hsu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Erin L. Hsu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
- Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois 60208, USA
| | - Samuel I. Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, USA
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, USA
- Corresponding author:
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44
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Ortony JH, Qiao B, Newcomb CJ, Keller TJ, Palmer LC, Deiss-Yehiely E, Olvera de la Cruz M, Han S, Stupp SI. Water Dynamics from the Surface to the Interior of a Supramolecular Nanostructure. J Am Chem Soc 2017. [DOI: 10.1021/jacs.7b02969] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Baofu Qiao
- Department
of Materials Science and Engineering, §Department of Chemistry, ⊥Department of Chemical and Biological
Engineering, and∇Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Christina J. Newcomb
- Department
of Materials Science and Engineering, §Department of Chemistry, ⊥Department of Chemical and Biological
Engineering, and∇Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Timothy J. Keller
- Department
of Chemistry and Biochemistry, University of California, Santa
Barbara, California 93106, United States
| | | | - Elad Deiss-Yehiely
- Department
of Materials Science and Engineering, §Department of Chemistry, ⊥Department of Chemical and Biological
Engineering, and∇Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Monica Olvera de la Cruz
- Department
of Materials Science and Engineering, §Department of Chemistry, ⊥Department of Chemical and Biological
Engineering, and∇Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Songi Han
- Department
of Chemistry and Biochemistry, University of California, Santa
Barbara, California 93106, United States
| | - Samuel I. Stupp
- Department
of Materials Science and Engineering, §Department of Chemistry, ⊥Department of Chemical and Biological
Engineering, and∇Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
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45
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Wei S, Huang W, Su F, Tang X, Huang N, Li L. Lyotropic meso-phase behavior of supra-molecular nanotubes with helical charge distribution. SOFT MATTER 2017; 13:3475-3479. [PMID: 28440381 DOI: 10.1039/c7sm00603a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report diverse meso-phase arrangements of supra-molecular nanotubes assembled by ionic benzene-1,3,5-tricarboxamide (BTA) molecules in water; their transition pathway and equilibrium structure are controlled by the helical structure. Besides, the different sensitivity to the condition of initial solutions is revealed for the final rectangular phase and the intermediate phase.
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Affiliation(s)
- Shenghui Wei
- National Synchrotron Radiation Lab, University of Science and Technology of China, Hefei, China.
| | - Weiheng Huang
- National Synchrotron Radiation Lab, University of Science and Technology of China, Hefei, China.
| | - Fengmei Su
- National Synchrotron Radiation Lab, University of Science and Technology of China, Hefei, China.
| | - Xiaoliang Tang
- National Synchrotron Radiation Lab, University of Science and Technology of China, Hefei, China.
| | - Ningdong Huang
- National Synchrotron Radiation Lab, University of Science and Technology of China, Hefei, China.
| | - Liangbin Li
- National Synchrotron Radiation Lab, University of Science and Technology of China, Hefei, China. and Department of Polymer Science and Engineering, CAS Key Lab of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China
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46
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Chen Z, Xing L, Fan Q, Cheetham AG, Lin R, Holt B, Chen L, Xiao Y, Cui H. Drug-Bearing Supramolecular Filament Hydrogels as Anti-Inflammatory Agents. Theranostics 2017; 7:2003-2014. [PMID: 28656057 PMCID: PMC5485419 DOI: 10.7150/thno.19404] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/03/2017] [Indexed: 01/08/2023] Open
Abstract
We report here on the covalent conversion of the anti-inflammatory agent ketoprofen into self-assembling prodrugs that enable the effective purification of ketoprofen enantiomers, the improved selectivity and potency of ketoprofen, as well as the formation of one-component drug-bearing supramolecular hydrogels. We found that the ketoprofen hydrogelator could exhibit much-enhanced selectivity for cyclooxygenase 2 (COX-2) over COX-1, reduce the concentration of inflammatory cytokines (IL-1 and TNFα), and induce apoptosis in fibroblast-like synoviocytes while maintaining biocompatibility with healthy chondrocytes. In addition, these anti-inflammatory agent-containing hydrogels demonstrated the ability to retain the therapeutic within a joint cavity after intra-articular injection, exhibiting a slow, steady release into the plasma. We believe that upon further optimization these drug-based injectable supramolecular hydrogels could provide the basis for a local treatment strategy for rheumatoid arthritis and similar conditions.
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Affiliation(s)
- Zhipeng Chen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD 21218, USA
| | - Lei Xing
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Qin Fan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Andrew G. Cheetham
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD 21218, USA
| | - Ran Lin
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD 21218, USA
| | - Barbara Holt
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD 21218, USA
| | - Liwen Chen
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD 21218, USA
| | - Yanyu Xiao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Oncology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, MD 21231, USA
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47
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Zhang G, Li J, Cui P, Wang T, Jiang J, Prezhdo OV. Two-Dimensional Linear Dichroism Spectroscopy for Identifying Protein Orientation and Secondary Structure Composition. J Phys Chem Lett 2017; 8:1031-1037. [PMID: 28198629 DOI: 10.1021/acs.jpclett.7b00311] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Quantitative measurements of protein orientation and secondary structure composition are of great importance for protein biotechnology applications and disease treatments, and yet, they are technically challenging for a spectroscopic study. On the basis of quantum mechanics/molecular mechanics simulations, we demonstrate that two-dimensional (2D) linear dichroism spectroscopy is capable of probing the direction of α-helix motifs in proteins. Compared to the conventional linear dichroism (LD) spectra, 2D spectra double the measurable range of orientation of secondary structures. In addition, by calculating the ratio of transverse ππ* signals to longitudinal ππ* signals in 2D spectra, we can achieve quantitative measurement of the fraction of α-helix content in a protein.
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Affiliation(s)
- Guozhen Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Jun Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Peng Cui
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Tao Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Oleg V Prezhdo
- Department of Chemistry, Department of Physics, and Department of Astronomy, University of Southern California , Los Angeles, California 90089, United States
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48
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Du Q, Huang Y, Ogbuu O, Zhang W, Li J, Singh V, Agarwal AM, Hu J. Gamma radiation effects in amorphous silicon and silicon nitride photonic devices. OPTICS LETTERS 2017; 42:587-590. [PMID: 28146534 DOI: 10.1364/ol.42.000587] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Understanding radiation damage is of significant importance for devices operating in radiation-harsh environments. In this Letter, we present a systematic study on gamma radiation effects in amorphous silicon and silicon nitride guided wave devices. It is found that gamma radiation increases the waveguide modal effective indices by as much as 4×10-3 in amorphous silicon and 5×10-4 in silicon nitride at 10 Mrad dose. This Letter further reveals that surface oxidation and radiation-induced densification account for the observed index change.
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49
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Abstract
Asymmetry in chemical structure or shape at molecular, nanoscale, or microscopic levels is essential to a vast number of functionalities in both natural and artificial systems. Bottom-up approaches to create asymmetric supramolecular nanostructures are considered promising but this strategy suffers from the potentially dynamic nature of noncovalent interactions. We report here on supramolecular self-assembly of asymmetric peptide amphiphiles consisting of two different molecularly linked domains. We found that strong noncovalent interactions and a high degree of internal order among the asymmetric amphiphiles lead to nanoribbons with asymmetric faces due to the preferential self-association of the two domains. The capture of gold nanoparticles on only one face of the nanoribbons demonstrates symmetry breaking in these supramolecular structures.
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Affiliation(s)
- Zhilin Yu
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
| | - Faifan Tantakitti
- Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University , Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University , Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University , Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University , Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University , Chicago, Illinois 60611, United States
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50
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Ekiz MS, Cinar G, Khalily MA, Guler MO. Self-assembled peptide nanostructures for functional materials. NANOTECHNOLOGY 2016; 27:402002. [PMID: 27578525 DOI: 10.1088/0957-4484/27/40/402002] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nature is an important inspirational source for scientists, and presents complex and elegant examples of adaptive and intelligent systems created by self-assembly. Significant effort has been devoted to understanding these sophisticated systems. The self-assembly process enables us to create supramolecular nanostructures with high order and complexity, and peptide-based self-assembling building blocks can serve as suitable platforms to construct nanostructures showing diverse features and applications. In this review, peptide-based supramolecular assemblies will be discussed in terms of their synthesis, design, characterization and application. Peptide nanostructures are categorized based on their chemical and physical properties and will be examined by rationalizing the influence of peptide design on the resulting morphology and the methods employed to characterize these high order complex systems. Moreover, the application of self-assembled peptide nanomaterials as functional materials in information technologies and environmental sciences will be reviewed by providing examples from recently published high-impact studies.
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Affiliation(s)
- Melis Sardan Ekiz
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, 06800 Turkey
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