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Pantaleone LC, Calicchia E, Martinelli J, Stuart MCA, Lopatina YY, Browne WR, Portale G, Tych KM, Kudernac T. Exerting pulling forces in fluids by directional disassembly of microcrystalline fibres. NATURE NANOTECHNOLOGY 2024; 19:1507-1513. [PMID: 39075290 DOI: 10.1038/s41565-024-01742-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 07/02/2024] [Indexed: 07/31/2024]
Abstract
Biomolecular polymerization motors are biochemical systems that use supramolecular (de-)polymerization to convert chemical potential into useful mechanical work. With the intent to explore new chemomechanical transduction strategies, here we show a synthetic molecular system that can generate forces via the controlled disassembly of self-organized molecules in a crystal lattice, as they are freely suspended in a fluid. An amphiphilic monomer self-assembles into rigid, high-aspect-ratio microcrystalline fibres. The assembly process is regulated by a coumarin-based pH switching motif. The microfibre crystal morphology determines the monomer reactivity at the interface, resulting in anisotropic etching. This effect exerts a directional pulling force on microscopic beads adsorbed on the crystal surface through weak multivalent interactions. We use optical-tweezers-based force spectroscopy to extract mechanistic insights into this process, quantifying a stall force of 2.3 pN (±0.1 pN) exerted by the ratcheting mechanism produced by the disassembly of the microfibres.
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Affiliation(s)
- L C Pantaleone
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
| | - E Calicchia
- Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, Netherlands
| | - J Martinelli
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
| | - M C A Stuart
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, Netherlands
| | - Y Y Lopatina
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
- Institute of Physics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - W R Browne
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands
| | - G Portale
- Zernike Institute for Advanced Materials, University of Groningen, Groningen, Netherlands
| | - K M Tych
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, Netherlands.
| | - T Kudernac
- Stratingh Institute for Chemistry, University of Groningen, Groningen, Netherlands.
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2
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Argyri SM, Almeida M, Cousin F, Evenäs L, Fameau AL, Le Coeur C, Bordes R. CO 2 induced phase transition on a self-standing droplet studied by X-ray scattering and magnetic resonance. J Colloid Interface Sci 2024; 678:1181-1191. [PMID: 39342863 DOI: 10.1016/j.jcis.2024.09.123] [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: 07/02/2024] [Revised: 09/09/2024] [Accepted: 09/12/2024] [Indexed: 10/01/2024]
Abstract
HYPOTHESIS Acoustic levitation is a suitable approach for studying processes occurring at the gas-liquid interfaces, as it allows its investigation in a contact-free manner while providing control over the gas phase. Here, we hypothesize that phase transitions induced by a CO2 rich atmosphere can be examined, at different length scales, in a contact-free manner. EXPERIMENTAL A system consisting of 12-hydroxysteric acid (HSA) soaps mixed with different ratios of monoethanolamine (MEA) and choline hydroxide, was prepared. Microliter droplets of the samples were acoustically levitated and monitored with a camera, while exposed to CO2 to modify the pH through diffusion at the air-liquid interface and inside the droplet. The phase transition and water mobility in the levitated droplets were evaluated through X-ray scattering (SAXS/WAXS) and magnetic resonance studies, in real-time. Finally, the droplets were collected and examined under the microscope. FINDINGS The introduction of CO2 gas induced a phase transition from micelles to multi-lamellar tubes, resulting in a gel-like behavior both in the bulk and at the interface. The high stability of the acoustic levitator allowed the investigation of this dynamic phenomenon, in real-time, in a contact-free environment. This study showcases the suitability of acoustic levitation as a tool to investigate complex chemical processes at interfaces.
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Affiliation(s)
- Smaragda-Maria Argyri
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden; Laboratoire Léon Brillouin, Université Paris-Saclay, CEA-CNRS UMR 12 CEA Saclay, 91191 Gif sur Yvette, France
| | - Maëva Almeida
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden; CNRS, ICMPE, UMR 7182, 2 Rue Henri Dunant, Université Paris Est Creteil, 94320 Thiais, France; Laboratoire Léon Brillouin, Université Paris-Saclay, CEA-CNRS UMR 12 CEA Saclay, 91191 Gif sur Yvette, France
| | - Fabrice Cousin
- Laboratoire Léon Brillouin, Université Paris-Saclay, CEA-CNRS UMR 12 CEA Saclay, 91191 Gif sur Yvette, France
| | - Lars Evenäs
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Anne-Laure Fameau
- INRAE, University Lille, CNRS, Centrale Lille, UMET, 59000 Lille, France.
| | - Clémence Le Coeur
- CNRS, ICMPE, UMR 7182, 2 Rue Henri Dunant, Université Paris Est Creteil, 94320 Thiais, France; Laboratoire Léon Brillouin, Université Paris-Saclay, CEA-CNRS UMR 12 CEA Saclay, 91191 Gif sur Yvette, France.
| | - Romain Bordes
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden.
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3
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Fu S, Yi X, Li Y, Li Y, Qu X, Miao P, Xu Y. Berberine and chlorogenic acid-assembled nanoparticles for highly efficient inhibition of multidrug-resistant Staphylococcus aureus. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134680. [PMID: 38795486 DOI: 10.1016/j.jhazmat.2024.134680] [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: 02/29/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Due to the bacteria resistant to various first-line antibiotics, it is urgent to develop efficient antibiotic alternatives and formulate multidimensional strategies. Herein, supramolecular Chinese medicine nanoparticles are synthesized by self-assembly of berberine (BBR) and chlorogenic acid (CGA), which exhibit higher inhibitory effect against Staphylococcus aureus and multidrug-resistant Staphylococcus aureus (MRSA) than ampicillin, oxacillin, BBR, CGA, as well as mixture of BBR and CGA (minimum inhibitory concentration, MIC = 1.5 µM). The inhibition by BBR/CGA nanoparticles (2.5 µM) reaches 99.06 % for MRSA, which is significantly higher than ampicillin (29.03 %). The nanoparticles with 1/2 MIC can also synergistically restore the antimicrobial activity of ampicillin against MRSA. Moreover, in vivo therapeutic outcome in the murine skin wound infection model suggests that the nanoparticles are able to promote wound healing. This study provides new insights in the application of Chinese medicines self-assembly for MRSA inhibition, as well as solutions for potential persistent clinical infections and drug deficiencies.
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Affiliation(s)
- Siyuan Fu
- Sanya Institute of Nanjing Agricultural University, MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Xuan Yi
- Sanya Institute of Nanjing Agricultural University, MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Yi Li
- Sanya Institute of Nanjing Agricultural University, MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Yuanhui Li
- Sanya Institute of Nanjing Agricultural University, MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaolin Qu
- Shandong Laboratory of Advanced Biomaterials and Medical Devices in Weihai, Weihai 264200, China
| | - Peng Miao
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China.
| | - Yuanyuan Xu
- Sanya Institute of Nanjing Agricultural University, MOE Joint International Research Laboratory of Animal Health and Food Safety, Key Laboratory of Animal Physiology & Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
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4
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Pascouau C, Schweitzer M, Besenius P. Supramolecular Assembly and Thermogelation Strategies Using Peptide-Polymer Conjugates. Biomacromolecules 2024; 25:2659-2678. [PMID: 38663862 PMCID: PMC11095398 DOI: 10.1021/acs.biomac.4c00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 05/14/2024]
Abstract
Peptide-polymer conjugates (PPCs) are of particular interest in the development of responsive, adaptive, and interactive materials due to the benefits offered by combining both building blocks and components. This review presents pioneering work as well as recent advances in the design of peptide-polymer conjugates, with a specific focus on their thermoresponsive behavior. This unique class of materials has shown great promise in the development of supramolecular structures with physicochemical properties that are modulated using soft and biorthogonal external stimuli. The temperature-induced self-assembly of PPCs into various supramolecular architectures, gelation processes, and tuning of accessible processing parameters to biologically relevant temperature windows are described. The discussion covers the chemical design of the conjugates, the supramolecular driving forces involved, and the mutual influence of the polymer and peptide segments. Additionally, some selected examples for potential biomedical applications of thermoresponsive PPCs in tissue engineering, delivery systems, tumor therapy, and biosensing are highlighted, as well as perspectives on future challenges.
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Affiliation(s)
- Chloé Pascouau
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 1014, D-55128 Mainz, Germany
| | - Maren Schweitzer
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 1014, D-55128 Mainz, Germany
| | - Pol Besenius
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 1014, D-55128 Mainz, Germany
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Sbordone F, Micallef A, Frisch H. pH-Controlled Reversible Folding of Copolymers via Formation of β-sheet Secondary Structures. Angew Chem Int Ed Engl 2024; 63:e202319839. [PMID: 38205669 DOI: 10.1002/anie.202319839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 01/12/2024]
Abstract
Protein functions are enabled by their perfectly arranged 3D structure, which is the result of a hierarchical intramolecular folding process. Sequence-defined polypeptide chains form locally ordered secondary structures (i.e., α-helix and β-sheet) through hydrogen bonding between the backbone amides, shaping the overall tertiary structure. To generate similarly complex macromolecular architectures based on synthetic materials, a plethora of strategies have been developed to induce and control the folding of synthetic polymers. However, the degree of complexity of the structure-driving ensemble of interactions demonstrated by natural polymers is unreached, as synthesizing long sequence-defined polymers with functional backbones remains a challenge. Herein, we report the synthesis of hybrid peptide-N,N-Dimethylacrylamide copolymers via radical Ring-Opening Polymerization (rROP) of peptide containing macrocycles. The resulting synthetic polymers contain sequence-defined regions of β-sheet encoding amino acid sequences. Exploiting the pH responsiveness of the embedded sequences, protonation or deprotonation in water induces self-assembly of the peptide strands at an intramacromolecular level, driving polymer chain folding via formation of β-sheet secondary structures. We demonstrate that the folding behavior is sequence dependent and reversible.
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Affiliation(s)
- Federica Sbordone
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
| | - Aaron Micallef
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
- Central Analytical Research Facility, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
| | - Hendrik Frisch
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
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Thomas M, Lewe V, Kölsch J, Urschbach M, Erlenbusch J, Stach OS, Besenius P. Impact of sample history and solvent effects on pathway control in the supramolecular polymerisation of Au(i)-metallopeptide amphiphiles. Polym Chem 2023; 14:1888-1892. [PMID: 37124957 PMCID: PMC10127225 DOI: 10.1039/d3py00053b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/13/2023] [Indexed: 05/02/2023]
Abstract
We investigate the kinetics of the supramolecular polymerisation of an Au(i)-metallopeptide amphiphile that assembles into exceptionally long and rigid nanofibers. We developed a precise preparation protocol to measure the concentration dependent assembly kinetics which elucidated a nucleation-elongation dominated supramolecular polymerisation process. We show striking differences in the assembly behavior and morphology in aqueous media, even at organic solvent contents as low as 1 vol%, compared to pure buffer.
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Affiliation(s)
- Marius Thomas
- Department of Chemistry, Johannes Gutenberg-University Mainz Duesbergweg 10-14 D-55128 Mainz Germany
| | - Vanessa Lewe
- Department of Chemistry, Johannes Gutenberg-University Mainz Duesbergweg 10-14 D-55128 Mainz Germany
- Graduate School of Materials Science in Mainz Staudingerweg 9 D-55128 Mainz Germany
| | - Jonas Kölsch
- Department of Chemistry, Johannes Gutenberg-University Mainz Duesbergweg 10-14 D-55128 Mainz Germany
| | - Moritz Urschbach
- Department of Chemistry, Johannes Gutenberg-University Mainz Duesbergweg 10-14 D-55128 Mainz Germany
| | - Jessica Erlenbusch
- Department of Chemistry, Johannes Gutenberg-University Mainz Duesbergweg 10-14 D-55128 Mainz Germany
| | - Oliver Sven Stach
- Department of Chemistry, Johannes Gutenberg-University Mainz Duesbergweg 10-14 D-55128 Mainz Germany
| | - Pol Besenius
- Department of Chemistry, Johannes Gutenberg-University Mainz Duesbergweg 10-14 D-55128 Mainz Germany
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7
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Hisamatsu Y, Cheng F, Yamamoto K, Takase H, Umezawa N, Higuchi T. Control of the stepwise self-assembly process of a pH-responsive amphiphilic 4-aminoquinoline-tetraphenylethene conjugate. NANOSCALE 2023; 15:3177-3187. [PMID: 36655765 DOI: 10.1039/d2nr05756e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Controlling the kinetic processes of self-assembly and switching their kinetic properties according to the changes in external environments are crucial concepts in the field of supramolecular polymers in water for biological and biomedical applications. Here we report a new self-assembling amphiphilic 4-aminoquinoline (4-AQ)-tetraphenylethene (TPE) conjugate that exhibits kinetically controllable stepwise self-assembly and has the ability of switching its kinetic nature in response to pH. The self-assembly process of the 4-AQ amphiphile comprises the formation of sphere-like nanoparticles, a transition to short nanofibers, and their growth to long nanofibers with ∼1 μm length scale at room temperature (RT). The timescale of the self-assembly process differs according to the pH-responsivity of the 4-AQ moiety in a weakly acidic to neutral pH range. Therefore, after aging for 24 h at RT, the 4-AQ amphiphile forms metastable short nanofibers at pH 5.5, while it forms thermodynamically favored long nanofibers at pH 7.4. Moreover, the modulation of nanofiber growth proceeding spontaneously at RT was achieved by switching the kinetic pathway through changing the pH between 7.4 and 5.5.
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Affiliation(s)
- Yosuke Hisamatsu
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
| | - Fangzhou Cheng
- Faculty of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
| | - Katsuhiro Yamamoto
- Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Hiroshi Takase
- Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Naoki Umezawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
| | - Tsunehiko Higuchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
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8
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Natarajan A, Rangan K, Vadrevu R. Self-assembly of a peptide sequence, EKKE, composed of exclusively charged amino acids: Role of charge in morphology and lead binding. J Pept Sci 2023; 29:e3451. [PMID: 36098076 DOI: 10.1002/psc.3451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 08/14/2022] [Accepted: 09/08/2022] [Indexed: 01/12/2023]
Abstract
The self-assembly of peptides is influenced by their amino acid sequence and other factors including pH, charge, temperature, and solvent. Herein, we explore whether a four-residue sequence, EKKE, consisting of exclusively charged amino acids shows the propensity to form self-assembled ordered nanostructures and whether the overall charge plays any role in morphological and functional properties. From a combination of experimental data provided by Thioflavin T fluorescence, Congo red absorbance, circular dichroism spectroscopy, dynamic light scattering, field emission-scanning electron microscopy, atomic force microscopy, and confocal microscopy, it is clear that the all-polar peptide and charged EKKE sequence shows a pH-dependent tendency to form amyloid-like structures, and the self-assembled entities under acidic, basic and neutral conditions exhibit morphological variation. Additionally, the ability of the self-assembled amyloid nanostructures to bind to the toxic metal, lead (Pb2+ ), was demonstrated from the analysis of the ultraviolet absorbance and X-ray photoelectron spectroscopy data. The modulation at the sequence level for the amyloid-forming EKKE scaffold can further extend its potential role not only in the remediation of other toxic metals but also towards biomedical applications.
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Affiliation(s)
- Aishwarya Natarajan
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, India
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, India
| | - Ramakrishna Vadrevu
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, India
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9
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High dose of bile acid enables the cellular entry and replication of hepatitis C virus in vitro. Mol Cell Toxicol 2022. [DOI: 10.1007/s13273-022-00232-2] [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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10
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Bioderived, chiral and stable 1-dimensional light-responsive nanostructures: Interconversion between tubules and twisted ribbons. J Colloid Interface Sci 2022; 623:723-734. [DOI: 10.1016/j.jcis.2022.05.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 11/23/2022]
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Prakash V, Christian Y, Redkar AS, Roy A, Anandalakshmi R, Ramakrishnan V. Antibacterial hydrogels of aromatic tripeptides. SOFT MATTER 2022; 18:6360-6371. [PMID: 35971808 DOI: 10.1039/d2sm00606e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Self-assembled peptide hydrogels have emerged as alternatives to the conventional approaches employed in controlled drug release, wound-healing, and drug delivery, and as anti-infective agents. However, peptide hydrogels possessing antibacterial properties are less explored. In this work, we have designed three ultrashort antibacterial peptide hydrogels: Fmoc-FFH-CONH2, Fmoc-FHF-CONH2, and Fmoc-HFF-CONH2. The rheological study showed the higher storage modulus of Fmoc-FFH-CONH2 (30.43 kPa) compared to Fmoc-FHF-CONH2 and Fmoc-HFF-CONH2, which may be attributed to the enhanced aromatic interaction in Fmoc-FFH-CONH2 compared to the other two variants, resulting in more mechanical rigidity. Further, the prepared hydrogels were evaluated for their inherent antibacterial potency against Gram-positive (Staphylococcus aureus, strain MTCC 96) and Gram-negative (Pseudomonas aeruginosa, strain PA01) bacteria. Antibacterial experiments demonstrated the potency of the hydrogels in the order of Fmoc-FFH-CONH2 > Fmoc-FHF-CONH2 > Fmoc-HFF-CONH2. The antibacterial effect of the hydrogels was predominantly due to the osmotic stress and membrane disruption, which was verified by reactive oxygen species (ROS) generation and outer membrane permeabilization assays. Our findings point to the scope of using the synthesized peptide hydrogels as agents for topical applications.
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Affiliation(s)
- Vivek Prakash
- Molecular Informatics and Design Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
| | - Yvonne Christian
- Molecular Informatics and Design Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
| | - Amay Sanjay Redkar
- Molecular Informatics and Design Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
| | - Abhishek Roy
- Advanced Energy & Materials Systems Laboratory, Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - R Anandalakshmi
- Advanced Energy & Materials Systems Laboratory, Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Vibin Ramakrishnan
- Molecular Informatics and Design Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
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Guo Z, Bai G, Zhan X, Zhuo K, Wang J, Wang Y. Supramolecular Vector/Drug Coassemblies of Polyglycerol Dendrons and Rutin Enhance the pH Response. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3392-3402. [PMID: 35266719 DOI: 10.1021/acs.langmuir.1c03131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A coassembly strategy for a supramolecular vector/drug was proposed with a biocompatible ternary dodecyl-bi(third-generation polyglycerol (PG) dendrons) (C12-(G3)2) amphiphile, dodecyl sulfobetaine (SB3-12) surfactant, and poorly water-soluble drug rutin. C12-(G3)2 and rutin will mutually enhance their pH response by protonation and deprotonation of dendritic PG and rutin's ionization as the pH changes from the acidic gastric lumen to the weakly alkaline intestine. SB3-12 may increase the payload and bring about sustained release for rutin by intermolecular interactions. Self-assembling behaviors of C12-(G3)2, SB3-12, sodium dodecyl sulfate (SDS), and dodecyl trimethylammonium bromide (DTAB) and their hybrids with rutin were characterized by UV-vis spectroscopy, a fluorescence probe, and 1H NMR. UV-vis and 1H NMR were used to identify the position and orientation of rutin in the vectors. The functions of the vector/drug were confirmed by measuring the solubility and in vitro release of rutin. The ternary coassembling vector/drug easily imparted functions of pH-responsive and sustained release without complex synthetic processes. The nanocaves framed by PG dendrons in the micelles provide pH-responsive compartments for rutin and SB3-12 in the supramolecular vector/drug anchors that accommodate rutin by weak interactions. The finely matched supramolecular vector/drug coassemblies exhibit the pH-responsive function for a potential application in the treatment of inflammatory bowel disease.
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Affiliation(s)
- Zhijun Guo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Guangyue Bai
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xize Zhan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jianji Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yujie Wang
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, Henan 453003, P. R. China
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Drug Delivery Strategies and Biomedical Significance of Hydrogels: Translational Considerations. Pharmaceutics 2022; 14:pharmaceutics14030574. [PMID: 35335950 PMCID: PMC8950534 DOI: 10.3390/pharmaceutics14030574] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/24/2022] [Accepted: 02/28/2022] [Indexed: 02/04/2023] Open
Abstract
Hydrogels are a promising and attractive option as polymeric gel networks, which have immensely fascinated researchers across the globe because of their outstanding characteristics such as elevated swellability, the permeability of oxygen at a high rate, good biocompatibility, easy loading, and drug release. Hydrogels have been extensively used for several purposes in the biomedical sector using versatile polymers of synthetic and natural origin. This review focuses on functional polymeric materials for the fabrication of hydrogels, evaluation of different parameters of biocompatibility and stability, and their application as carriers for drugs delivery, tissue engineering and other therapeutic purposes. The outcome of various studies on the use of hydrogels in different segments and how they have been appropriately altered in numerous ways to attain the desired targeted delivery of therapeutic agents is summarized. Patents and clinical trials conducted on hydrogel-based products, along with scale-up translation, are also mentioned in detail. Finally, the potential of the hydrogel in the biomedical sector is discussed, along with its further possibilities for improvement for the development of sophisticated smart hydrogels with pivotal biomedical functions.
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Synthesis of Polymeric Ferrocenyl Amphiphiles with smart hydrophobic block and long hydrophilic poly(ethylene glycol) block and their application in self-assembly micelles with electrochemical response. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Ullah A, Lim SI. Bioinspired tunable hydrogels: An update on methods of preparation, classification, and biomedical and therapeutic applications. Int J Pharm 2022; 612:121368. [PMID: 34896566 DOI: 10.1016/j.ijpharm.2021.121368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 12/24/2022]
Abstract
Hydrogels exhibit water-insoluble three-dimensional polymeric networks capable of absorbing large amounts of biological fluids. Both natural and synthetic polymers are used for the preparation of hydrogel networks. Such polymeric networks are fabricated through chemical or physical mechanisms of crosslinking. Chemical crosslinking is accomplished mainly through covalent bonding, while physical crosslinking involves self-healing secondary forces like H-bonding, host-guest interactions, and antigen-antibody interactions. The building blocks of the hydrogels play an important role in determining the mechanical, biological, and physicochemical properties. Hydrogels are used in a variety of biomedical applications like diagnostics (biodetection and bioimaging), delivery of therapeutics (drugs, immunotherapeutics, and vaccines), wound dressing and skin materials, cardiac complications, contact lenses, tissue engineering, and cell culture because of the inherent characteristics like enhanced water uptake and structural similarity with the extracellular matrix (ECM). This review highlights the recent trends and advances in the roles of hydrogels in biomedical and therapeutic applications. We also discuss the classification and methods of hydrogels preparation. A brief outlook on the future directions of hydrogels is also presented.
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Affiliation(s)
- Aziz Ullah
- Department of Chemical Engineering, Pukyong National University, Busan 48513, Republic of Korea; Gomal Centre of Pharmaceutical Sciences, Faculty of Pharmacy, Gomal University Dera Ismail Khan 29050, Khyber Pakhtunkhwa, Pakistan
| | - Sung In Lim
- Department of Chemical Engineering, Pukyong National University, Busan 48513, Republic of Korea.
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16
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Wang C, Fu L, Hu Z, Zhong Y. A mini-review on peptide-based self-assemblies and their biological applications. NANOTECHNOLOGY 2021; 33:062004. [PMID: 34649227 DOI: 10.1088/1361-6528/ac2fe3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
Peptide-based supramolecular self-assembly from peptide monomers into well-organized nanostructures, has attracted extensive attentions towards biomedical and biotechnological applications in recent decades. This spontaneous and reversible assembly process involving non-covalent bonding interactions can be artificially regulated. In this review, we have elaborated different strategies to modulate the peptide self-assembly through tuning the physicochemical and environmental conditions, includingpH, light, temperature, solvent, and enzyme. Detailed introduction of biological applications and future potential of the peptide-based nano-assemblies will also be given.
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Affiliation(s)
- Chenlei Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Linping Fu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhiyuan Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Yeteng Zhong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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17
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Kimura S, Haraya N, Komiyama T, Yokoya M, Yamanaka M. Formation of pH-Responsive Supramolecular Hydrogels in Basic Buffers: Self-assembly of Amphiphilic Tris-Urea. Chem Pharm Bull (Tokyo) 2021; 69:1131-1135. [PMID: 34719596 DOI: 10.1248/cpb.c21-00539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An amphiphilic tris-urea compound (1) containing hydrophilic resorcinol units was designed and synthesized. Compound 1 formed supramolecular hydrogels in basic buffers, such as glycine-NaOH, phosphate-NaOH, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES)-NaOH, and borate-NaOH. The optimum pH range of the buffer solution for gelation was 10-11 and insoluble suspensions or solutions were formed when the pH was outside this range. When the borate-NaOH buffer was used, supramolecular hydrogels were formed over a wide pH range (7.5-11.0). The thermal stabilities and viscoelastic properties of the supramolecular hydrogels were determined from the gel-to-sol phase transition temperatures and rheological properties, respectively. The supramolecular hydrogel formed from compound 1 and the borate-NaOH buffer exhibited a pH-responsive reversible gel-to-sol phase transition property. Gel-to-sol phase transition could be achieved by adding NaOH and regelation of the sol was realized by adding an appropriate amount of boric acid. Increasing the amount of the acid resulted in a gel-to-sol phase transition.
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Affiliation(s)
| | - Nana Haraya
- Department of Chemistry, Shizuoka University
| | - Tomoki Komiyama
- Meiji Pharmaceutical University.,Department of Chemistry, Shizuoka University
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18
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Jiang B, Liu Y, Zhao L, Zhao L, Wang C, Liu C, Xu B. Construction of a pH-sensitive self-assembly in aqueous solutions based on a dansyl-modified β-cyclodextrin. SOFT MATTER 2021; 17:7516-7523. [PMID: 34318864 DOI: 10.1039/d1sm00751c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Here we present a pH-responsive self-assembly based on a β-cyclodextrin (β-CD) derivative bearing a dansyl terminus (βCD-C6-Dns). Vesicular structures were formed over the entire studied pH range (8.5-0.7); however, the molecular configuration and packing within the vesicles were different at different pH values. Intramolecular host-guest complexation occurred mainly between the dansyl group and β-CD at pH values where the dansyl group was not protonated. The alkyl chain also acted as a competitive guest to form host-guest inclusions as confirmed by 2D 1H NMR measurements. The pH-responsive βCD-C6-Dns vesicles have potential application prospects in pH-controlled drug release based on the low cytotoxicity of βCD-C6-Dns.
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Affiliation(s)
- Bing Jiang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China.
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19
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Schuster GB, Cafferty BJ, Karunakaran SC, Hud NV. Water-Soluble Supramolecular Polymers of Paired and Stacked Heterocycles: Assembly, Structure, Properties, and a Possible Path to Pre-RNA. J Am Chem Soc 2021; 143:9279-9296. [PMID: 34152760 DOI: 10.1021/jacs.0c13081] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The hypothesis that RNA and DNA are products of chemical and biological evolution has motivated our search for alternative nucleic acids that may have come earlier in the emergence of life-polymers that possess a proclivity for covalent and non-covalent self-assembly not exhibited by RNA. Our investigations have revealed a small set of candidate ancestral nucleobases that self-assemble into hexameric rosettes that stack in water to form long, twisted, rigid supramolecular polymers. These structures exhibit properties that provide robust solutions to long-standing problems that have stymied the search for a prebiotic synthesis of nucleic acids. Moreover, their examination by experimental and computational methods provides insight into the chemical and physical principles that govern a particular class of water-soluble one-dimensional supramolecular polymers. In addition to efficient self-assembly, their lengths and polydispersity are modulated by a wide variety of positively charged, planar compounds; their assembly and disassembly are controlled over an exceedingly narrow pH range; they exhibit spontaneous breaking of symmetry; and homochirality emerges through non-covalent cross-linking during hydrogel formation. Some of these candidate ancestral nucleobases spontaneously form glycosidic bonds with ribose and other sugars, and, most significantly, functionalized forms of these heterocycles form supramolecular structures and covalent polymers under plausibly prebiotic conditions. This Perspective recounts a journey of discovery that continues to reveal attractive answers to questions concerning the origins of life and to uncover the principles that control the structure and properties of water-soluble supramolecular polymers.
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Affiliation(s)
- Gary B Schuster
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.,NSF-NASA Center for Chemical Evolution, Atlanta, Georgia 30332, United States
| | - Brian J Cafferty
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.,NSF-NASA Center for Chemical Evolution, Atlanta, Georgia 30332, United States
| | - Suneesh C Karunakaran
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.,NSF-NASA Center for Chemical Evolution, Atlanta, Georgia 30332, United States
| | - Nicholas V Hud
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.,NSF-NASA Center for Chemical Evolution, Atlanta, Georgia 30332, United States
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20
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Li Q, Li J, Yu W, Wang Z, Li J, Feng X, Wang J, Shan A. De novo design of a pH-triggered self-assembled β-hairpin nanopeptide with the dual biological functions for antibacterial and entrapment. J Nanobiotechnology 2021; 19:183. [PMID: 34127004 PMCID: PMC8201815 DOI: 10.1186/s12951-021-00927-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 06/04/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Acid-tolerant enteric pathogens can evade small intestinal acid barriers, colonize and infect the intestinal tract. However, broad-spectrum antibiotics are not the best therapeutic strategy because of the disruption of intestinal flora caused by its indiscriminate antimicrobial activity against beneficial and harmful bacteria. So that is what inspired us to combine pH regulation with nanotechnology to develop a pH-triggered site-targeted antimicrobial peptide with entrapping function. RESULTS A pH-triggered dual biological functional self-assembled peptide (SAP) was designed according to the features of amino-acid building blocks and the diagonal cation-π interaction principle. The results of characterization experiments showed that changes in pH conditions could trigger microstructural transformation of the nanopeptide from nanospheres to nanofibers. The subsequent antibacterial and toxicity experiments determined that SAP had great antimicrobial activity against Escherichia coli, Salmonella typhimurium, Listeria monocytogenes, and Bacillus cereus above 15.6 μg/mL under acidic conditions by disrupting bacterial membrane integrity, excellent biocompatibility in vitro even at 250 μg/mL and high tolerance in physical environment. Moreover, at peptide concentrations greater than 62.5 μg/mL, SAP showed the entrapment property, which played an important role in phagocytic clearance in infection forces. Meanwhile, the in vivo results revealed that SAP possessed excellent therapeutic effect and good biosafety. CONCLUSIONS Our study revealed the antibacterial activity of a short β-hairpin forming self-assembled peptide, and established an innovative design strategy for peptide-based nanomaterials and a new treatment strategy for gastrointestinal bacterial infections.
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Affiliation(s)
- Qiuke Li
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Jinze Li
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Weikang Yu
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Zhihua Wang
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Jiawei Li
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Xingjun Feng
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China
| | - Jiajun Wang
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China.
| | - Anshan Shan
- Laboratory of Molecular Nutrition and Immunity, The Institute of Animal Nutrition, Northeast Agricultural University, Harbin, People's Republic of China.
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21
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Chen S, Costil R, Leung FK, Feringa BL. Self-Assembly of Photoresponsive Molecular Amphiphiles in Aqueous Media. Angew Chem Int Ed Engl 2021; 60:11604-11627. [PMID: 32936521 PMCID: PMC8248021 DOI: 10.1002/anie.202007693] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Indexed: 12/22/2022]
Abstract
Amphiphilic molecules, comprising hydrophobic and hydrophilic moieties and the intrinsic propensity to self-assemble in aqueous environment, sustain a fascinating spectrum of structures and functions ranging from biological membranes to ordinary soap. Facing the challenge to design responsive, adaptive, and out-of-equilibrium systems in water, the incorporation of photoresponsive motifs in amphiphilic molecular structures offers ample opportunity to design supramolecular systems that enables functional responses in water in a non-invasive way using light. Here, we discuss the design of photoresponsive molecular amphiphiles, their self-assembled structures in aqueous media and at air-water interfaces, and various approaches to arrive at adaptive and dynamic functions in isotropic and anisotropic systems, including motion at the air-water interface, foam formation, reversible nanoscale assembly, and artificial muscle function. Controlling the delicate interplay of structural design, self-assembling conditions and external stimuli, these responsive amphiphiles open several avenues towards application such as soft adaptive materials, controlled delivery or soft actuators, bridging a gap between artificial and natural dynamic systems.
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Affiliation(s)
- Shaoyu Chen
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenNetherlands
| | - Romain Costil
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenNetherlands
| | - Franco King‐Chi Leung
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenNetherlands
- Present address: State Key Laboratory of Chemical Biology and Drug DiscoveryDepartment of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic UniversityHong KongChina
| | - Ben L. Feringa
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747AGGroningenNetherlands
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22
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Self-assembly, pH-responsibility and controlled release of doxorubicin of PDEAEMA-PEG-PDEAEMA triblock copolymers: effects of PEG length. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02532-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Panja S, Adams DJ. Stimuli responsive dynamic transformations in supramolecular gels. Chem Soc Rev 2021; 50:5165-5200. [PMID: 33646219 DOI: 10.1039/d0cs01166e] [Citation(s) in RCA: 170] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Supramolecular gels are formed by the self-assembly of small molecules under the influence of various non-covalent interactions. As the interactions are individually weak and reversible, it is possible to perturb the gels easily, which in turn enables fine tuning of their properties. Synthetic supramolecular gels are kinetically trapped and usually do not show time variable changes in material properties after formation. However, such materials potentially become switchable when exposed to external stimuli like temperature, pH, light, enzyme, redox, and chemical analytes resulting in reconfiguration of gel matrix into a different type of network. Such transformations allow gel-to-gel transitions while the changes in the molecular aggregation result in alteration of physical and chemical properties of the gel with time. Here, we discuss various methods that have been used to achieve gel-to-gel transitions by modifying a pre-formed gel material through external perturbation. We also describe methods that allow time-dependent autonomous switching of gels into different networks enabling synthesis of next generation functional materials. Dynamic modification of gels allows construction of an array of supramolecular gels with various properties from a single material which eventually extend the limit of applications of the gels. In some cases, gel-to-gel transitions lead to materials that cannot be accessed directly. Finally, we point out the necessity and possibility of further exploration of the field.
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Affiliation(s)
- Santanu Panja
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
| | - Dave J Adams
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK.
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24
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Chen S, Costil R, Leung FK, Feringa BL. Self‐Assembly of Photoresponsive Molecular Amphiphiles in Aqueous Media. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202007693] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shaoyu Chen
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747AG Groningen Netherlands
| | - Romain Costil
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747AG Groningen Netherlands
| | - Franco King‐Chi Leung
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747AG Groningen Netherlands
- Present address: State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hong Kong China
| | - Ben L. Feringa
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747AG Groningen Netherlands
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25
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Steinegger A, Wolfbeis OS, Borisov SM. Optical Sensing and Imaging of pH Values: Spectroscopies, Materials, and Applications. Chem Rev 2020; 120:12357-12489. [PMID: 33147405 PMCID: PMC7705895 DOI: 10.1021/acs.chemrev.0c00451] [Citation(s) in RCA: 182] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 12/13/2022]
Abstract
This is the first comprehensive review on methods and materials for use in optical sensing of pH values and on applications of such sensors. The Review starts with an introduction that contains subsections on the definition of the pH value, a brief look back on optical methods for sensing of pH, on the effects of ionic strength on pH values and pKa values, on the selectivity, sensitivity, precision, dynamic ranges, and temperature dependence of such sensors. Commonly used optical sensing schemes are covered in a next main chapter, with subsections on methods based on absorptiometry, reflectometry, luminescence, refractive index, surface plasmon resonance, photonic crystals, turbidity, mechanical displacement, interferometry, and solvatochromism. This is followed by sections on absorptiometric and luminescent molecular probes for use pH in sensors. Further large sections cover polymeric hosts and supports, and methods for immobilization of indicator dyes. Further and more specific sections summarize the state of the art in materials with dual functionality (indicator and host), nanomaterials, sensors based on upconversion and 2-photon absorption, multiparameter sensors, imaging, and sensors for extreme pH values. A chapter on the many sensing formats has subsections on planar, fiber optic, evanescent wave, refractive index, surface plasmon resonance and holography based sensor designs, and on distributed sensing. Another section summarizes selected applications in areas, such as medicine, biology, oceanography, bioprocess monitoring, corrosion studies, on the use of pH sensors as transducers in biosensors and chemical sensors, and their integration into flow-injection analyzers, microfluidic devices, and lab-on-a-chip systems. An extra section is devoted to current challenges, with subsections on challenges of general nature and those of specific nature. A concluding section gives an outlook on potential future trends and perspectives.
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Affiliation(s)
- Andreas Steinegger
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
| | - Otto S. Wolfbeis
- Institute
of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany
| | - Sergey M. Borisov
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, A-8010 Graz, Austria
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26
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Eckert T, Abetz V. Polymethacrylamide—An underrated and easily accessible upper critical solution temperature polymer: Green synthesis via photoiniferter reversible addition–fragmentation chain transfer polymerization and analysis of solution behavior in water/ethanol mixtures. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200566] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tilman Eckert
- Helmholtz‐Zentrum Geesthacht Institute of Polymer Research Geesthacht Germany
- Institute of Physical Chemistry University of Hamburg Hamburg Germany
| | - Volker Abetz
- Helmholtz‐Zentrum Geesthacht Institute of Polymer Research Geesthacht Germany
- Institute of Physical Chemistry University of Hamburg Hamburg Germany
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27
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Panja S, Fuentes-Caparrós AM, Cross ER, Cavalcanti L, Adams DJ. Annealing Supramolecular Gels by a Reaction Relay. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2020; 32:5264-5271. [PMID: 32595268 PMCID: PMC7315816 DOI: 10.1021/acs.chemmater.0c01483] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/22/2020] [Indexed: 05/09/2023]
Abstract
Supramolecular gels have potential in many areas. In many cases, a major drawback is that the gels are formed at a high rate. As a result, nonoptimal, kinetically trapped self-assembled structures are often formed, leading to gels that can be hard to reproduce and control. One method to get around kinetic trapping is annealing. Thermal annealing is one possibility, but it is not always desirable to heat the gels. Here, we describe a method to anneal pH-triggered gels after they are formed. We employ a reaction relay in a peptide-based hydrogel system to anneal the structures by a controlled and uniform pH change. Our method allows us to prepare gels with more controlled properties. We show that this can be used to enable homogeneous "molding and casting" of the hydrogels. This method of annealing is more effective in improving gel robustness than a conventional heat-cool cycle.
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Affiliation(s)
- Santanu Panja
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | | | - Emily R. Cross
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
| | - Leide Cavalcanti
- ISIS
Pulsed Neutron Source, Rutherford Appleton
Laboratory, Didcot OX11 0QX, U.K.
| | - Dave J. Adams
- School
of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K.
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28
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Lee HJ, Shin BY, Moon JS, Fadriquela A, Nuwormegbe SA, Ho CC, Shin JS, Yoon JS, Lee SK, Kim SK. Critical role of bile acid (BA) in the cellular entry and permissiveness of Hepatitis B virus in vitro. Mol Cell Toxicol 2020. [DOI: 10.1007/s13273-020-00081-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Panzarasa G, Torzynski AL, Sai T, Smith-Mannschott K, Dufresne ER. Transient supramolecular assembly of a functional perylene diimide controlled by a programmable pH cycle. SOFT MATTER 2020; 16:591-594. [PMID: 31859330 DOI: 10.1039/c9sm02026h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-regulating materials require embedded control systems. Active networks of enzymes fulfill this function in living organisms, and the development of chemical controls for synthetic systems is still in its infancy. While previous work has focused on enzymatic controls, small-molecule networks have unexplored potential. We describe a simple small-molecule network that is able to produce transient pH cycles with tunable lagtimes and lifetimes, based on coupling the acid-to-alkali methylene glycol-sulfite reaction to 1,3-propanesultone, a slow acid generator. Applied to transient pH-driven supramolecular self-assembly of a perylene diimide, our system matches the flexibility of in vitro enzymatic systems, including the ability to perform repeated cycles of assembly and disassembly.
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Affiliation(s)
- Guido Panzarasa
- Laboratory of Soft and Living Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland.
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30
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Kartha KK, Wendler F, Rudolph T, Biehl P, Fernández G, Schacher FH. pH-Responsive Side Chains as a Tool to Control Aqueous Self-Assembly Mechanisms. Chemistry 2020; 26:606-610. [PMID: 31713917 PMCID: PMC7003937 DOI: 10.1002/chem.201904284] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/31/2019] [Indexed: 01/02/2023]
Abstract
pH-Tunable nanoscale morphology and self-assembly mechanism of a series of oligo(p-phenyleneethynylene) (OPE)-based bolaamphiphiles featuring poly(ethylene imine) (PEI) side chains of different length and degree of hydrolysis are described. Protonation and deprotonation of the PEI chains by changing the pH alters the hydrophilic/hydrophobic balance of the systems and, in turn, the strength of intermolecular interactions between the hydrophobic OPE moieties. Low pH values (3) lead to weak interaction between the OPEs and result in spherical nanoparticles, in which aggregation follows an isodesmic mechanism. In contrast, higher pH values (11) induce deprotonation of the polymer chains and lead to a stronger, cooperative aggregation into anisotropic nanostructures. Our results demonstrate that pH-responsive chains can be exploited as a tool to tune self-assembly mechanisms, which opens exciting possibilities to develop new stimuli-responsive materials.
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Affiliation(s)
- Kalathil K. Kartha
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Felix Wendler
- Laboratory of Organic and Macromolecular Chemistry and Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaHumboldtstrasse 1007743JenaGermany
| | - Tobias Rudolph
- Laboratory of Organic and Macromolecular Chemistry and Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaHumboldtstrasse 1007743JenaGermany
| | - Philip Biehl
- Laboratory of Organic and Macromolecular Chemistry and Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaHumboldtstrasse 1007743JenaGermany
| | - Gustavo Fernández
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - F. H. Schacher
- Laboratory of Organic and Macromolecular Chemistry and Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaHumboldtstrasse 1007743JenaGermany
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31
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Gao J, Zhan J, Yang Z. Enzyme-Instructed Self-Assembly (EISA) and Hydrogelation of Peptides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1805798. [PMID: 31018025 DOI: 10.1002/adma.201805798] [Citation(s) in RCA: 162] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 02/19/2019] [Indexed: 06/09/2023]
Abstract
Self-assembly is a powerful tool for constructing supramolecular materials for many applications, ranging from energy harvesting to biomedicine. Among the methods to prepare supramolecular materials for biomedical applications, enzyme-instructed self-assembly (EISA) has several advantages. Herein, the unique properties and advantages of EISA in preparing biofunctional supramolecular nanomaterials and hydrogels from peptides are highlighted. EISA can trigger molecular self-assembly in situ. Therefore, using overexpression enzymes in disease sites, supramolecular materials can be formed in situ to improve the selectivity and efficacy of the treatment. The precursor may be involved during the EISA process, and it is actually a two-component self-assembly process. The precursor can help to stabilize the assembled nanostructures of hydrophobic peptides formed by EISA. More importantly, the precursor may determine the outcome of molecular self-assembly. Recently, it was also observed that EISA can kinetically control the peptide folding and morphology and cellular uptake behavior of supramolecular nanomaterials. With the combination of other methods to trigger molecular self-assembly, researchers can form supramolecular nanomaterials in a more precise mode and sometimes under spatiotemporal control. EISA is a powerful and unique methodology to prepare supramolecular biofunctional materials that cannot be generated from other common methods.
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Affiliation(s)
- Jie Gao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, National Institute for Advanced Materials, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, P. R. China
| | - Jie Zhan
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, National Institute for Advanced Materials, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, P. R. China
| | - Zhimou Yang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, National Institute for Advanced Materials, and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, P. R. China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, P. R. China
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Blanco-Gómez A, Cortón P, Barravecchia L, Neira I, Pazos E, Peinador C, García MD. Controlled binding of organic guests by stimuli-responsive macrocycles. Chem Soc Rev 2020; 49:3834-3862. [DOI: 10.1039/d0cs00109k] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Synthetic supramolecular chemistry pursues not only the construction of new matter, but also control over its inherently dynamic behaviour.
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Affiliation(s)
- Arturo Blanco-Gómez
- Departamento de Química
- Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA)
- Universidade da Coruña
- 15071 A Coruña
- Spain
| | - Pablo Cortón
- Departamento de Química
- Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA)
- Universidade da Coruña
- 15071 A Coruña
- Spain
| | - Liliana Barravecchia
- Departamento de Química
- Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA)
- Universidade da Coruña
- 15071 A Coruña
- Spain
| | - Iago Neira
- Departamento de Química
- Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA)
- Universidade da Coruña
- 15071 A Coruña
- Spain
| | - Elena Pazos
- Departamento de Química
- Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA)
- Universidade da Coruña
- 15071 A Coruña
- Spain
| | - Carlos Peinador
- Departamento de Química
- Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA)
- Universidade da Coruña
- 15071 A Coruña
- Spain
| | - Marcos D. García
- Departamento de Química
- Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA)
- Universidade da Coruña
- 15071 A Coruña
- Spain
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Panja S, Dietrich B, Adams DJ. Chemically Fuelled Self‐Regulating Gel‐to‐Gel Transition. CHEMSYSTEMSCHEM 2019. [DOI: 10.1002/syst.201900038] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Santanu Panja
- School of ChemistryUniversity of Glasgow Glasgow G12 8QQ UK
| | - Bart Dietrich
- School of ChemistryUniversity of Glasgow Glasgow G12 8QQ UK
| | - Dave J. Adams
- School of ChemistryUniversity of Glasgow Glasgow G12 8QQ UK
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34
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Hu W, Wang Z, Xiao Y, Zhang S, Wang J. Advances in crosslinking strategies of biomedical hydrogels. Biomater Sci 2019; 7:843-855. [PMID: 30648168 DOI: 10.1039/c8bm01246f] [Citation(s) in RCA: 399] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Biomedical hydrogels as sole repair matrices or combined with pre-seeded cells and bioactive growth factors are extensively applied in tissue engineering and regenerative medicine. Hydrogels normally provide three dimensional structures for cell adhesion and proliferation or the controlled release of the loading of drugs or proteins. Various physiochemical properties of hydrogels endow them with distinct applications. In this review, we present the commonly used crosslinking method for hydrogel synthesis involving physical and chemical crosslinks and summarize their current progress and future perspectives.
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Affiliation(s)
- Weikang Hu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.
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35
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Chu C, Stricker L, Kirse TM, Hayduk M, Ravoo BJ. Light-Responsive Arylazopyrazole Gelators: From Organic to Aqueous Media and from Supramolecular to Dynamic Covalent Chemistry. Chemistry 2019; 25:6131-6140. [PMID: 30791165 PMCID: PMC6593461 DOI: 10.1002/chem.201806042] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Indexed: 01/09/2023]
Abstract
Versatile photoresponsive gels based on tripodal low molecular weight gelators (LMWGs) are reported. A cyclohexane-1,3,5-tricarboxamide (CTA) core provides face-to-face hydrogen bonding and a planar conformation, inducing the self-assembly of supramolecular polymers. The CTA core was substituted with three arylazopyrazole (AAP) arms. AAP is a molecular photoswitch that isomerizes reversibly under alternating UV and green light irradiation. The E isomer of AAP is planar, favoring the self-assembly, whereas the Z isomer has a twisted structure, leading to a disassembly of the supramolecular polymers. By using tailor-made molecular design of the tripodal gelator, light-responsive organogels and hydrogels were obtained. Additionally, in the case of the hydrogels, AAP was coupled to the core through hydrazones, so that the hydrogelator and, hence, the photoresponsive hydrogel could also be assembled and disassembled by using dynamic covalent chemistry.
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Affiliation(s)
- Chih‐Wei Chu
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Lucas Stricker
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Thomas M. Kirse
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Matthias Hayduk
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience (SoN)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
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36
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Tuning the life-time of supramolecular hydrogels using ROS-responsive telechelic peptide-polymer conjugates. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.11.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Pazos E, Novo P, Peinador C, Kaifer AE, García MD. Cucurbit[8]uril (CB[8])‐Based Supramolecular Switches. Angew Chem Int Ed Engl 2018; 58:403-416. [DOI: 10.1002/anie.201806575] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Elena Pazos
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Paula Novo
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Carlos Peinador
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
| | - Angel E. Kaifer
- Department of Chemistry University of Miami Coral Gables FL 33124 USA
| | - Marcos D. García
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spain
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Pazos E, Novo P, Peinador C, Kaifer AE, García MD. Supramolekulare Schalter auf der Basis von Cucurbit[8]uril (CB[8]). Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806575] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elena Pazos
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Paula Novo
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Carlos Peinador
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
| | - Angel E. Kaifer
- Department of Chemistry University of Miami Coral Gables FL 33124 USA
| | - Marcos D. García
- Departamento de Química Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA) Universidade da Coruña 15071, A Coruña Spanien
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39
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Otter R, Henke NA, Berac C, Bauer T, Barz M, Seiffert S, Besenius P. Secondary Structure-Driven Hydrogelation Using Foldable Telechelic Polymer-Peptide Conjugates. Macromol Rapid Commun 2018; 39:e1800459. [DOI: 10.1002/marc.201800459] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 06/28/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Ronja Otter
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
| | - Nina Alexandra Henke
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
| | - Christian Berac
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
| | - Tobias Bauer
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
| | - Matthias Barz
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
| | - Sebastian Seiffert
- Institute of Physical Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
| | - Pol Besenius
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
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40
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Maity A, Dey A, Si MK, Ganguly B, Das A. Impact of "half-crown/two carbonyl"-Ca 2+ metal ion interactions of a low molecular weight gelator (LMWG) on its fiber to nanosphere morphology transformation with a gel-to-sol phase transition. SOFT MATTER 2018; 14:5821-5831. [PMID: 29972192 DOI: 10.1039/c8sm01071d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report here a smart functional low molecular weight gelator (LMWG) L, containing an unusual metal ion coordination site, i.e. "half-crown/two carbonyl". The gelator L shows excellent gelation behavior with typical fibrillar morphology in acetonitrile, methanol and ethanol media. Upon Ca2+ ion binding with its "half-crown/two carbonyl" coordination site, the acetonitrile gel of L exhibits a fiber to nanosphere morphology transformation along with a gel-to-sol phase transition as confirmed by microscopic investigation and by direct naked eye visualization, respectively. The mechanism involved in this morphology transformation and gel-to-sol phase transition process was studied thoroughly with the help of computational calculations and various spectroscopic experiments and discussed.
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Affiliation(s)
- Arunava Maity
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India.
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41
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Mariani G, Krieger A, Moldenhauer D, Schweins R, Gröhn F. Light-Responsive Shape: From Micrometer-Long Nanocylinders to Compact Particles in Electrostatic Self-Assembly. Macromol Rapid Commun 2018; 39:e1700860. [PMID: 29504172 DOI: 10.1002/marc.201700860] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 02/02/2018] [Indexed: 11/07/2022]
Abstract
A light-triggered shape change of supramolecular nanostructures is achieved through electrostatically self-assembly of linear polyelectrolytes and oppositely charged dyes in aqueous solution: Upon UV-irradiation, 1-µm-long, flexible cylinders with a cross-section of 10 nm convert into ellipsoids of 400 nm × 40 nm. The nano-object shape is encoded in the molecular dye structure.
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Affiliation(s)
- Giacomo Mariani
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
- Institut Laue-Langevin DS/LSS, 71 avenue des Martyrs, 38000, Grenoble, France
| | - Anja Krieger
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
| | - Daniel Moldenhauer
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
| | - Ralf Schweins
- Institut Laue-Langevin DS/LSS, 71 avenue des Martyrs, 38000, Grenoble, France
| | - Franziska Gröhn
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, D-91058, Erlangen, Germany
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42
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García F, Pelss J, Zuilhof H, Smulders MMJ. Multi-responsive coordination polymers utilising metal-stabilised, dynamic covalent imine bonds. Chem Commun (Camb) 2018; 52:9059-62. [PMID: 26879208 DOI: 10.1039/c6cc00500d] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report how the combination of dynamic covalent imine bonds and coordination bonds in a single polymer material not only imparts enhanced stability to the final polymer, but also allows the material to be sensitive to a range of stimuli, offering more fine-grained control over its properties.
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Affiliation(s)
- Fátima García
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands.
| | - Janis Pelss
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands.
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands. and Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Maarten M J Smulders
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands.
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Spitzer D, Rodrigues LL, Straßburger D, Mezger M, Besenius P. Programmierbare transiente Thermogele vermittelt durch eine pH- und Redox-regulierte supramolekulare Polymerisation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708857] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Daniel Spitzer
- Institut für Organische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Deutschland
| | - Leona Lucas Rodrigues
- Institut für Organische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Deutschland
| | - David Straßburger
- Institut für Organische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Deutschland
| | - Markus Mezger
- Institut für Physik; Johannes Gutenberg-Universität Mainz, Max-Planck-Institut für Polymerforschung; Ackermannweg 10 55128 Mainz Deutschland
| | - Pol Besenius
- Institut für Organische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 55128 Mainz Deutschland
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44
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Spitzer D, Rodrigues LL, Straßburger D, Mezger M, Besenius P. Tuneable Transient Thermogels Mediated by a pH- and Redox-Regulated Supramolecular Polymerization. Angew Chem Int Ed Engl 2017; 56:15461-15465. [DOI: 10.1002/anie.201708857] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/29/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Daniel Spitzer
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Leona Lucas Rodrigues
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - David Straßburger
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Markus Mezger
- Institute of Physics; Johannes Gutenberg-University Mainz, Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Pol Besenius
- Institute of Organic Chemistry; Johannes Gutenberg-University Mainz; Duesbergweg 10-14 55128 Mainz Germany
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45
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Qi R, Liu Z, Zhou C, Han Y, Wang Y. pH-Responsive self-assembly of cationic surfactants with a star-shaped tetra-carboxylate acid and the solubilization of hydrophobic drugs. SOFT MATTER 2017; 13:7804-7812. [PMID: 29067393 DOI: 10.1039/c7sm01940h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This work involved the construction of pH-responsive self-assembly systems from a pH-sensitive four-arm carboxylate acid (4EOCOOH) and either the cationic single chain surfactant dodecyl trimethyl ammonium bromide (DTAB) or the cationic gemini surfactant hexamethylene-1,6-bis(dodecyldimethylammonium bromide) (12-6-12). It was found that the constructed oligomeric-like structures from the mixtures of 4EOCOOH with DTAB or 12-6-12 greatly enhance the aggregation ability of the mixtures, thus improving the pH-responsivity. In particular, surfactant concentrations significantly affect the pH-responsivity at a fixed 4EOCOOH concentration. At higher surfactant concentrations, the pH-responsivity is suppressed, while at lower surfactant concentrations, the mixed aggregates gradually change from micelles to unstable large spherical aggregates or vesicles, and then to stable spherical aggregates, with decreasing pH. Moreover, the surfactant/4EOCOOH systems have different solubilization abilities for three hydrophobic drugs. For quercetin and baicalein, the systems support much better solubilization at lower pH values, while for indomethacin, the systems show better solubilization at higher pH values. In particular, compared with DTAB, 12-6-12 is more efficient in constructing pH-responsive systems, and the 12-6-12/4EOCOOH mixture shows better ability for solubilizing hydrophobic drugs. This work will be helpful in the design of high-efficiency, pH-responsive surfactant systems for solubilizing hydrophobic drugs by simply mixing pH-sensitive molecules with surfactants.
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Affiliation(s)
- Ruilian Qi
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
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46
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Hatip Koc M, Cinar Ciftci G, Baday S, Castelletto V, Hamley IW, Guler MO. Hierarchical Self-Assembly of Histidine-Functionalized Peptide Amphiphiles into Supramolecular Chiral Nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7947-7956. [PMID: 28753315 DOI: 10.1021/acs.langmuir.7b01266] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Controlling the hierarchical organization of self-assembling peptide amphiphiles into supramolecular nanostructures opens up the possibility of developing biocompatible functional supramolecular materials for various applications. In this study, we show that the hierarchical self-assembly of histidine- (His-) functionalized PAs containing d- or l-amino acids can be controlled by both solution pH and molecular chirality of the building blocks. An increase in solution pH resulted in the structural transition of the His-functionalized chiral PA assemblies from nanosheets to completely closed nanotubes through an enhanced hydrogen-bonding capacity and π-π stacking of imidazole ring. The effects of the stereochemistry and amino acid sequence of the PA backbone on the supramolecular organization were also analyzed by CD, TEM, SAXS, and molecular dynamics simulations. In addition, an investigation of chiral mixtures revealed the differences between the hydrogen-bonding capacities and noncovalent interactions of PAs with d- and l-amino acids.
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Affiliation(s)
- Meryem Hatip Koc
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University , Ankara, 06800 Turkey
| | - Goksu Cinar Ciftci
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University , Ankara, 06800 Turkey
| | - Sefer Baday
- Applied Informatics Department, Informatics Institute, Istanbul Technical University , Istanbul, 34469 Turkey
| | - Valeria Castelletto
- Department of Chemistry, University of Reading , Whiteknights, Reading RG6 6AD, U.K
| | - Ian W Hamley
- Department of Chemistry, University of Reading , Whiteknights, Reading RG6 6AD, U.K
| | - Mustafa O Guler
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University , Ankara, 06800 Turkey
- Institute for Molecular Engineering, University of Chicago , Chicago, Illinois 60637 United States
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47
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Ahlers P, Frisch H, Holm R, Spitzer D, Barz M, Besenius P. Tuning the pH-Switch of Supramolecular Polymer Carriers for siRNA to Physiologically Relevant pH. Macromol Biosci 2017; 17. [PMID: 28671760 DOI: 10.1002/mabi.201700111] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/17/2017] [Indexed: 12/17/2022]
Abstract
The preparation of histidine enriched dendritic peptide amphiphiles and their self-assembly into multicomponent pH-switchable supramolecular polymers is reported. Alternating histidine and phenylalanine peptide synthons allow the assembly/disassembly to be adjusted in a physiologically relevant range of pH 5.3-6.0. Coassembly of monomers equipped with dendritic tetraethylene glycol chains with monomers bearing peripheral primary amine groups leads to nanorods with a tunable cationic surface charge density. These surface functional supramolecular polycations are able to reversibly bind short interfering RNA (siRNA). The nanorod-like supramolecular polymers, their complexation with siRNA, and the pH-triggered assembly/disassembly of the supramolecular carriers are characterized via circular dichroism spectroscopy, gel electrophoresis, as well as transmission electron microscopy. Multicomponent supramolecular polymers represent a modular and promising strategy for applications as responsive carrier vehicles, codelivery strategies, and gene therapy.
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Affiliation(s)
- Patrick Ahlers
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Hendrik Frisch
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Regina Holm
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Daniel Spitzer
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Matthias Barz
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Pol Besenius
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
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Physicochemical properties and esterolytic reactivity of oxime functionalized surfactants in pH-responsive mixed micellar system. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Xing Y, Zhang J, Chen F, Liu J, Cai K. Mesoporous polydopamine nanoparticles with co-delivery function for overcoming multidrug resistance via synergistic chemo-photothermal therapy. NANOSCALE 2017; 9:8781-8790. [PMID: 28621774 DOI: 10.1039/c7nr01857f] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Theranostic agents for combined chemo-photothermal therapy have attracted intensive interest in the treatment of multi-drug resistance (MDR) in cancer therapy. However, the development of simple theranostic agents as dual hosts for both heat and a high payload of chemotherapeutic agents remains a big challenge. Herein, mesoporous polydopamine nanoparticles (MPDA) were successfully developed with properties of a high payload of DOX (up to 2000 μg mg-1) and the drug efflux inhibitor TPGS (d-α-tocopheryl polyethylene glycol 1000 succinate), as well as strong near-infrared absorption. Particularly, DOX and TPGS were sequentially loaded in the pore space and on the external particle surface of MPDA via π-π stacking and hydrophobic interactions, resulting in a MPDA-DOX@TPGS complex. The DOX release observably relies on the pH value and glutathione (GSH). Furthermore, it is possible to accelerate the rate of drug release by NIR irradiation. Importantly, the MPDA-DOX@TPGS complex was found to escape from endosomes after cellular uptake and release the loaded drugs into the cytosol. By TPGS mediated MDR reversal, the delivered DOX induced significant cytotoxicity to MCF-7/ADR cells. Besides, MPDA can absorb the NIR light and convert it into fatal heat to kill the cancer cells. As a consequence, the combined therapy in our system yields a synergistic effect with high therapeutic efficacy.
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Affiliation(s)
- Yuxin Xing
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, No. 174 Shazheng Road, Chongqing 400044, China.
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Kang Y, Ju X, Ding LS, Zhang S, Li BJ. Reactive Oxygen Species and Glutathione Dual Redox-Responsive Supramolecular Assemblies with Controllable Release Capability. ACS APPLIED MATERIALS & INTERFACES 2017; 9:4475-4484. [PMID: 28103014 DOI: 10.1021/acsami.6b14640] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A dual redox and biorelevant triggered supramolecular system is developed through noncovalent supramolecular inclusion interactions between the ferrocene (Fc) modified on camptothecin (CPT) and β-cyclodextrin (β-CD) at the end of methoxy polyethylene glycol (mPEG). With these two segments, a stable noncovalent supramolecular structure, i.e., mPEG-β-CD/Fc-CPT, can be formed, and then self-assembled into micellar structures in water. Interestingly, these supramolecular micelles showed uniform sphere structure, high and constant drug loading content, hyper-fast redox-responsive drug release, and exhibited equal cellular proliferation inhibition toward A549 cancer cells. The cytotoxicity evaluation of mPEG-β-CD also indicated good biocompatibility. In vivo results revealed the mPEG-β-CD/Fc-CPT nanoparticles had higher in vivo efficacy without side effects. It is anticipated this supramolecular complex may serve as a new kind of promising alternative for drug delivery systems.
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Affiliation(s)
- Yang Kang
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041, Sichuan, China
| | - Xin Ju
- State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University , Chengdu 610065, Sichuan, China
| | - Li-Sheng Ding
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041, Sichuan, China
| | - Sheng Zhang
- State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University , Chengdu 610065, Sichuan, China
| | - Bang-Jing Li
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041, Sichuan, China
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