1
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Panzarasa G. Methylene glycol-sulfite pH-clocks for the time-programming of soft materials: advantages, limitations, and yet unexplored opportunities. SOFT MATTER 2024; 20:6092-6102. [PMID: 39027927 DOI: 10.1039/d4sm00604f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Coupling nonlinear reaction networks with soft matter building blocks holds great potential for the design of life-mimicking, time-programmable dissipative self-assembly systems. In this regard, clock reactions are especially useful triggers since they allow to autonomously generate in situ chemical stimuli such as pH changes. The methylene glycol-sulfite (MGS) is a well-known acid-to-base pH-clock reaction which is able to produce sharp and intense pH jumps (up to 5 pH units) after a reliable, yet relatively short (tens of seconds rather than minutes), induction time. Here, after an introductory discussion on the main chemical aspects of MGS and MGS-based systems, their applications for the time-programming of soft matter will be showcased - from micelles, vesicles, and droplets to supramolecular aggregates, polymers and gels. Hopefully, this will help attracting more attention and foster research on the broader field of materials programming with chemical reaction networks.
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Affiliation(s)
- Guido Panzarasa
- Institute for Building Materials, Department of Civil, Environmental and Geomatic Engineering, ETH Zürich, Laura-Hezner-Weg 7, 8093 Zürich, Switzerland.
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2
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Vogelaar T, Szostak SM, Lund R. Coacervation in Slow Motion: Kinetics of Complex Micelle Formation Induced by the Hydrolysis of an Antibiotic Prodrug. Mol Pharm 2024; 21:4157-4168. [PMID: 39011839 PMCID: PMC11304390 DOI: 10.1021/acs.molpharmaceut.4c00579] [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: 05/27/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/17/2024]
Abstract
Colistin methanesulfonate (CMS) is the less-toxic prodrug of highly nephrotoxic colistin. To develop and understand highly necessary new antibiotic formulations, the hydrolysis of CMS to colistin must be better understood. Herein, with the addition of poly(ethylene oxide)-b-poly(methacrylic acid) (PEO-b-PMAA) to CMS, we show that we can follow the hydrolysis kinetics, employing small-angle X-ray scattering (SAXS) through complex coacervation. During this hydrolysis, hydroxy methanesulfonate (HMS) groups from CMS are cleaved, while the newly formed cationic amino groups complex with the anionic charge from the PMAA block. As the hydrolysis of HMS groups is slow, we can follow the complex coacervation process by the gradual formation of complex micelles containing activated antibiotics. Combining mass spectrometry (MS) with SAXS, we quantify the hydrolysis as a function of pH. Upon modeling the kinetic pathways, we found that complexation only happens after complete hydrolysis into colistin and that the process is accelerated under acidic conditions. At pH = 5.0, effective charge switching was identified as the slowest step in the CMS conversion, constituting the rate-limiting step in colistin formation.
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Affiliation(s)
- Thomas
D. Vogelaar
- Department
of Chemistry, University of Oslo, P.O. Box 1033 Blindern, Oslo NO-0315, Norway
| | - Szymon M. Szostak
- Department
of Chemistry, University of Oslo, P.O. Box 1033 Blindern, Oslo NO-0315, Norway
| | - Reidar Lund
- Department
of Chemistry, University of Oslo, P.O. Box 1033 Blindern, Oslo NO-0315, Norway
- Hylleraas
Centre for Quantum Molecular Sciences, University
of Oslo, Oslo NO-0315, Norway
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3
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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 2024:10.1038/s41565-024-01742-x. [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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4
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Islam M, Baroi MK, Das BK, Kumari A, Das K, Ahmed S. Chemically fueled dynamic switching between assembly-encoded emissions. MATERIALS HORIZONS 2024; 11:3104-3114. [PMID: 38687299 DOI: 10.1039/d4mh00251b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Self-assembly provides access to non-covalently synthesized supramolecular materials with distinct properties from a single building block. However, dynamic switching between functional states still remains challenging, but holds enormous potential in material chemistry to design smart materials. Herein, we demonstrate a chemical fuel-mediated strategy to dynamically switch between two distinctly emissive aggregates, originating from the self-assembly of a naphthalimide-appended peptide building block. A molecularly dissolved building block shows very weak blue emission, whereas, in the assembled state (Agg-1), it shows cyan emission through π stacking-mediated excimer emission. The addition of a chemical fuel, ethyl-3-(3-(dimethylamino)propyl)carbodiimide (EDC), converts the terminal aspartic acid present in the building block to an intra-molecularly cyclized anhydride in situ forming a second aggregated state, Agg-2, by changing the molecular packing, thereby transforming the emission to strong blue. Interestingly, the anhydride gets hydrolyzed gradually to reform Agg-1 and the initial cyan emission is restored. The kinetic stability of the strong blue emissive aggregate, Agg-2, can be regulated by the added concentration of the chemical fuel. Moreover, we expand the scope of this system within an agarose gel matrix, which allows us to gain spatiotemporal control over the properties, thereby producing a self-erasable writing system where the chemical fuel acts as the ink.
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Affiliation(s)
- Manirul Islam
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Kolkata, Kolkata 700054, India.
| | - Malay Kumar Baroi
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Basab Kanti Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Aanchal Kumari
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Kolkata, Kolkata 700054, India.
| | - Krishnendu Das
- Department of Molecules and Materials & MESA+ Institute, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands.
| | - Sahnawaz Ahmed
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Kolkata, Kolkata 700054, India.
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5
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van den Akker WP, van Benthem RATM, Voets IK, van Hest JCM. Dampened Transient Actuation of Hydrogels Autonomously Controlled by pH-Responsive Bicontinuous Nanospheres. ACS APPLIED MATERIALS & INTERFACES 2024; 16:19642-19650. [PMID: 38569110 DOI: 10.1021/acsami.4c02643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
The fabrication of a soft actuator with a dampened actuation response is presented. This was achieved via the incorporation into an actuating hydrogel of urease-loaded pH-responsive bicontinuous nanospheres (BCNs), whose membrane was able to regulate the permeability and thus conversion of fuel urea into ammonia. The dampened response of these nanoreactors to the enzymatically induced pH change was translated to a pH-responsive soft actuator. In hydrogels composed of a pH-responsive and nonresponsive layer, the transient pH gradient yielded an asymmetric swelling behavior, which induced a bending response. The transient actuation profile could be controlled by varying the external fuel concentrations. Furthermore, we showed that the spatial organization of the BCNs within the actuator had a great influence on the actuation response. Embedding the urease-loaded nanoreactors within the active, pH-responsive layer resulted in a reduced response due to local substrate conversion in comparison to embedding them within the passive layer of the bilayer hydrogel. Finally, we were able to induce transient actuation in a hydrogel comprising two identical active layers by the immobilization of the BCNs within one specific layer. Upon addition of urea, a local pH gradient was generated, which caused accelerated swelling in the BCN layer and transient bending of the device before the pH gradient was attenuated over time.
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Affiliation(s)
- Wouter P van den Akker
- Department of Chemistry & Chemical Engineering, Institute for Complex Molecular Systems, Bio-Organic Chemistry, Eindhoven University of Technology, Helix, P.O. Box 513, 5600MB Eindhoven, The Netherlands
- Department of Chemistry & Chemical Engineering, Self-Organizing Soft Matter, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, The Netherlands
| | - Rolf A T M van Benthem
- Department of Chemistry & Chemical Engineering, Laboratory of Physical Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, The Netherlands
- Shell Energy Transition Center Amsterdam, Grasweg 31, 1031 HW Amsterdam, The Netherlands
| | - Ilja K Voets
- Department of Chemistry & Chemical Engineering, Self-Organizing Soft Matter, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, The Netherlands
| | - Jan C M van Hest
- Department of Chemistry & Chemical Engineering, Institute for Complex Molecular Systems, Bio-Organic Chemistry, Eindhoven University of Technology, Helix, P.O. Box 513, 5600MB Eindhoven, The Netherlands
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6
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Dissanayake TU, Hughes J, Woehl TJ. Dynamic surface chemistry and interparticle interactions mediating chemically fueled dissipative assembly of colloids. J Colloid Interface Sci 2023; 650:972-982. [PMID: 37453321 DOI: 10.1016/j.jcis.2023.06.207] [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: 04/12/2023] [Revised: 06/16/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023]
Abstract
HYPOTHESIS Dissipative assembly of colloids involves using a chemical fuel to temporarily activate organic colloid surface ligands to an assembly prone state. Colloids assemble into transient aggregates that disintegrate after the fuel is consumed. The underlying colloidal interactions controlling dissipative assembly have not been rigorously identified or quantified. We expect that fuel concentration dependent dissipative assembly behavior can be reconciled with measurements of dynamic colloid surface chemistry and colloidal interactions. EXPERIMENTS Carbodiimide chemistry was utilized to induce dissipative assembly of carboxylic acid functionalized polystyrene colloids. We measured aggregation kinetics, colloid surface hydrophobicity, and zeta potential as a function of time, which established that colloids underwent dissipative assembly for fuel concentrations between 5 and 12.5 mM and irreversible aggregation at higher fuel concentrations due to transient changes in surface chemistry. FINDINGS We formulated a pairwise colloidal interaction potential model including hydrophobic interactions quantified by fluorescence binding experiments. Fuel concentrations causing dissipative assembly displayed a transient increase in secondary minimum depth and a primary maximum much larger than the thermal potential. Fuel concentrations leading to irreversible aggregation displayed a primary maximum smaller than the thermal potential. This is the first study to quantify surface chemistry and interparticle interactions during dissipative colloid assembly and represents a foundational step in rationally designing more complex dissipative assembly systems.
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Affiliation(s)
- Thilini U Dissanayake
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA
| | - Justin Hughes
- Department of Material Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Taylor J Woehl
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, USA.
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7
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Sharma C, Sarkar A, Walther A. Transient co-assemblies of micron-scale colloids regulated by ATP-fueled reaction networks. Chem Sci 2023; 14:12299-12307. [PMID: 37969603 PMCID: PMC10631234 DOI: 10.1039/d3sc04017h] [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: 08/01/2023] [Accepted: 10/15/2023] [Indexed: 11/17/2023] Open
Abstract
Self-assembly of colloidal particles offers an attractive bottom-up approach to functional materials. Current design strategies for colloidal assemblies are mostly based on thermodynamically controlled principles and lack autonomous behavior. The next advance in the properties of colloidal assemblies will come from coupling these structures to out-of-equilibrium chemical reaction networks furnishing them with autonomous and dynamic behavior. This, however, constitutes a major challenge of carefully modulating the interparticle potentials on a temporal circuit program and avoiding kinetic trapping and irreversible aggregation. Herein, we report the coupling of a fuel-driven DNA-based enzymatic reaction network (ERN) to micron-sized colloidal particles to achieve their transient co-assembly. The ERN operating on the molecular level transiently releases an Output strand which links two DNA functionalized microgel particles together into co-assemblies with a programmable assembly lifetime. The system generates minimal waste and recovers all components of the ERN after the consumption of the ATP fuel. The system can be reactivated by addition of new fuel as shown for up to three cycles. The design can be applied to organize other building blocks into hierarchical structures and materials with advanced biomimetic properties.
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Affiliation(s)
- Charu Sharma
- Department of Chemistry, Life-Like Materials and Systems, University of Mainz Duesbergweg 10-14 55128 Mainz Germany
| | - Aritra Sarkar
- Department of Chemistry, Life-Like Materials and Systems, University of Mainz Duesbergweg 10-14 55128 Mainz Germany
| | - Andreas Walther
- Department of Chemistry, Life-Like Materials and Systems, University of Mainz Duesbergweg 10-14 55128 Mainz Germany
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8
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Sharma C, Samanta A, Schmidt RS, Walther A. DNA-Based Signaling Networks for Transient Colloidal Co-Assemblies. J Am Chem Soc 2023; 145:17819-17830. [PMID: 37543962 DOI: 10.1021/jacs.3c04807] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Programmable chemical circuits inspired by signaling networks in living cells are a promising approach for the development of adaptive and autonomous self-assembling molecular systems and material functions. Progress has been made at the molecular level, but connecting molecular control circuits to self-assembling larger elements such as colloids that enable real-space studies and access to functional materials is sparse and can suffer from kinetic traps, flocculation, or difficult system integration protocols. Herein, we report a toehold-mediated DNA strand displacement reaction network capable of autonomously directing two different microgels into transient and self-regulating co-assemblies. The microgels are functionalized with DNA and become elemental components of the network. The flexibility of the circuit design allows the installation of delay phases or accelerators by chaining additional circuit modules upstream or downstream of the core circuit. The design provides an adaptable and robust route to regulate other building blocks for advanced biomimetic functions.
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Affiliation(s)
- Charu Sharma
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Avik Samanta
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Ricarda Sophia Schmidt
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Andreas Walther
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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9
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Wang Z, Xiao J, Zhao T, Zhang C, Wang L, He N, Kong Q, Wang X. Transient regulation of gel properties by chemical reaction networks. Chem Commun (Camb) 2023; 59:9818-9831. [PMID: 37497715 DOI: 10.1039/d3cc02479b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Transient regulation of gel properties by chemical reaction networks (CRNs) represents an emerging and effective strategy to program or temporally control the structures, properties, and functions of gel materials in a self-regulated manner. CRNs provide significant opportunities to construct complex or sustainable gels with excellent dynamic features, thus expanding the application scope of these materials. CRN-based methods for transiently regulating the gel properties are receiving increasing attention, and the related fields are worth further studying. This feature article focuses on the CRN-mediated transient regulation of six properties of gels, which are transient gelation, transient liquefaction of gels, transient assembly of macroscopic gels, temporary actuation of gels, transient healing ability of kinetically inert gels, and cascade reaction-based self-reporting of external stimuli. Recent advances that showcase the six properties of gels controlled by CRNs are featured, the characterization and structural elucidation of gels are detailed, and the significance, achievements, and expectations of this field are discussed. The strategy of transient regulation of gel properties via CRNs is potentially useful for building the next generation of adaptive functional materials.
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Affiliation(s)
- Zhongrui Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Jing Xiao
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Ting Zhao
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Chunxiao Zhang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Luping Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Nan He
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Qingming Kong
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Xu Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
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10
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Rao A, Roy S, Jain V, Pillai PP. Nanoparticle Self-Assembly: From Design Principles to Complex Matter to Functional Materials. ACS APPLIED MATERIALS & INTERFACES 2023; 15:25248-25274. [PMID: 35715224 DOI: 10.1021/acsami.2c05378] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The creation of matter with varying degrees of complexities and desired functions is one of the ultimate targets of self-assembly. The ability to regulate the complex interactions between the individual components is essential in achieving this target. In this direction, the initial success of controlling the pathways and final thermodynamic states of a self-assembly process is promising. Despite the progress made in the field, there has been a growing interest in pushing the limits of self-assembly processes. The main inception of this interest is that the intended self-assembled state, with varying complexities, may not be "at equilibrium (or at global minimum)", rendering free energy minimization unsuitable to form the desired product. Thus, we believe that a thorough understanding of the design principles as well as the ability to predict the outcome of a self-assembly process is essential to form a collection of the next generation of complex matter. The present review highlights the potent role of finely tuned interparticle interactions in nanomaterials to achieve the preferred self-assembled structures with the desired properties. We believe that bringing the design and prediction to nanoparticle self-assembly processes will have a similar effect as retrosynthesis had on the logic of chemical synthesis. Along with the guiding principles, the review gives a summary of the different types of products created from nanoparticle assemblies and the functional properties emerging from them. Finally, we highlight the reasonable expectations from the field and the challenges lying ahead in the creation of complex and evolvable matter.
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Affiliation(s)
- Anish Rao
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Sumit Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Vanshika Jain
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Pramod P Pillai
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
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11
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Nikfarjam S, Gibbons R, Burni F, Raghavan SR, Anisimov MA, Woehl TJ. Chemically Fueled Dissipative Cross-Linking of Protein Hydrogels Mediated by Protein Unfolding. Biomacromolecules 2023; 24:1131-1140. [PMID: 36795055 DOI: 10.1021/acs.biomac.2c01186] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Cells assemble dynamic protein-based nanostructures far from equilibrium, such as microtubules, in a process referred to as dissipative assembly. Synthetic analogues have utilized chemical fuels and reaction networks to form transient hydrogels and molecular assemblies from small molecule or synthetic polymer building blocks. Here, we demonstrate dissipative cross-linking of transient protein hydrogels using a redox cycle, which exhibit protein unfolding-dependent lifetimes and mechanical properties. Fast oxidation of cysteine groups on bovine serum albumin by hydrogen peroxide, the chemical fuel, formed transient hydrogels with disulfide bond cross-links that degraded over hours by a slow reductive back reaction. Interestingly, despite increased cross-linking, the hydrogel lifetime decreased as a function of increasing denaturant concentration. Experiments showed that the solvent-accessible cysteine concentration increased with increasing denaturant concentration due to unfolding of secondary structures. The increased cysteine concentration consumed more fuel, which led to less direction oxidation of the reducing agent and affected a shorter hydrogel lifetime. Increased hydrogel stiffness, disulfide cross-linking density, and decreased oxidation of redox-sensitive fluorescent probes at a high denaturant concentration provided evidence supporting the unveiling of additional cysteine cross-linking sites and more rapid consumption of hydrogen peroxide at higher denaturant concentrations. Taken together, the results indicate that the protein secondary structure mediated the transient hydrogel lifetime and mechanical properties by mediating the redox reactions, a feature unique to biomacromolecules that exhibit a higher order structure. While prior works have focused on the effects of the fuel concentration on dissipative assembly of non-biological molecules, this work demonstrates that the protein structure, even in nearly fully denatured proteins, can exert similar control over reaction kinetics, lifetime, and resulting mechanical properties of transient hydrogels.
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Affiliation(s)
- Shakiba Nikfarjam
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20740, United States
| | - Rebecca Gibbons
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20740, United States
| | - Faraz Burni
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20740, United States
| | - Srinivasa R Raghavan
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20740, United States
| | - Mikhail A Anisimov
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20740, United States
- Institute for Physical Sciences and Technology, University of Maryland, College Park, Maryland 20740, United States
| | - Taylor J Woehl
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20740, United States
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12
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Sharma C, Maity I, Walther A. pH-feedback systems to program autonomous self-assembly and material lifecycles. Chem Commun (Camb) 2023; 59:1125-1144. [PMID: 36629372 DOI: 10.1039/d2cc06402b] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
pH-responsive systems have gained importance for the development of smart materials and for biomedical applications because they can switch between different states by simple acid/base triggers. However, such equilibrium systems lack the autonomous behaviour that is so ubiquitous in living systems that self-regulate out of equilibrium. As a contribution to the emerging field of autonomous chemical systems, we have developed pH-feedback systems (pH-FS) based on the coupling of acid- and base-producing steps in chemical reaction networks. The resulting autonomous nonlinear pH curves can be coupled with a variety of pH-sensitive building blocks to program the lifecycles of the associated transient state at the level of self-assemblies and material systems. In this article, we discuss the different generations of such pH-feedback systems, the principles of their coupling to self-assemblies with lifecycles and highlight emerging concepts for the design of autonomous functional materials. The specificity, robustness, and flexible operation of such pH-FS can also be used to realize chemo-structural and chemo-mechanical feedbacks that extend the behaviour of such materials systems toward complex and functional life-like systems.
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Affiliation(s)
- Charu Sharma
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Indrajit Maity
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Andreas Walther
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
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13
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Kruse J, Sanromán‐Iglesias M, Marauri A, Rivilla I, Grzelczak M. Coupling Reversible Clustering of DNA‐Coated Gold Nanoparticles with Chemothermal Cycloaddition Reaction. CHEMSYSTEMSCHEM 2022. [DOI: 10.1002/syst.202200031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Joscha Kruse
- Donostia International Physics Center (DIPC) Paseo Manuel de Lardizabal 4 20018 Donostia-San Sebastián Spain
- CIC nanoGUNE BRTA Tolosa Hiribidea 76 20018 Donostia-Sebastián Spain
| | - Maria Sanromán‐Iglesias
- Centro de Física de Materiales CSIC-UPV/EHU Paseo Manuel de Lardizabal 5 20018 Donostia San-Sebastián Spain
| | - Aimar Marauri
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU) Lardizabal Pasealekua 3 20018 Donostia-San Sebastián Spain
| | - Ivan Rivilla
- Donostia International Physics Center (DIPC) Paseo Manuel de Lardizabal 4 20018 Donostia-San Sebastián Spain
- Ikerbasque, Basque Foundation for Science 48013 Bilbao Spain
| | - Marek Grzelczak
- Donostia International Physics Center (DIPC) Paseo Manuel de Lardizabal 4 20018 Donostia-San Sebastián Spain
- Centro de Física de Materiales CSIC-UPV/EHU Paseo Manuel de Lardizabal 5 20018 Donostia San-Sebastián Spain
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14
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Zhang H, Zeng H, Eklund A, Guo H, Priimagi A, Ikkala O. Feedback-controlled hydrogels with homeostatic oscillations and dissipative signal transduction. NATURE NANOTECHNOLOGY 2022; 17:1303-1310. [PMID: 36443600 PMCID: PMC9747616 DOI: 10.1038/s41565-022-01241-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 09/14/2022] [Indexed: 05/06/2023]
Abstract
Driving systems out of equilibrium under feedback control is characteristic for living systems, where homeostasis and dissipative signal transduction facilitate complex responses. This feature not only inspires dissipative dynamic functionalities in synthetic systems but also poses great challenges in designing novel pathways. Here we report feedback-controlled systems comprising two coupled hydrogels driven by constant light, where the system can be tuned to undergo stable homeostatic self-oscillations or damped steady states of temperature. We demonstrate that stable temperature oscillations can be utilized for dynamic colours and cargo transport, whereas damped steady states enable signal transduction pathways. Here mechanical triggers cause temperature changes that lead to responses such as bending motions inspired by the single-touch mechanoresponse in Mimosa pudica and the frequency-gated snapping motion inspired by the plant arithmetic in the Venus flytrap. The proposed concepts suggest generalizable feedback pathways for dissipative dynamic materials and interactive soft robotics.
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Affiliation(s)
- Hang Zhang
- Department of Applied Physics, Aalto University, Espoo, Finland
| | - Hao Zeng
- Smart Photonic Materials, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland.
| | - Amanda Eklund
- Department of Applied Physics, Aalto University, Espoo, Finland
| | - Hongshuang Guo
- Smart Photonic Materials, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland
| | - Arri Priimagi
- Smart Photonic Materials, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland.
| | - Olli Ikkala
- Department of Applied Physics, Aalto University, Espoo, Finland.
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15
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Zhang S, Zhang Y, Wu H, Li Z, Shi P, Qu H, Sun Y, Wang X, Cao X, Yang L, Tian Z. Construction of transient supramolecular polymers controlled by mass transfer in biphasic systems. Chem Sci 2022; 13:13930-13937. [PMID: 36544718 PMCID: PMC9710222 DOI: 10.1039/d2sc04548f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/13/2022] [Indexed: 11/16/2022] Open
Abstract
Inspired by life assembly systems, the construction of transient assembly systems with spatiotemporal control is crucial for developing intelligent materials. A widely adopted strategy is to couple the self-assembly with chemical reaction networks. However, orchestrating the kinetics of multiple reactions and assembly/disassembly processes without crosstalk in homogeneous solutions is not an easy task. To address this challenge, we propose a generic strategy by separating components into different phases, therefore, the evolution process of the system could be easily regulated by controlling the transport of components through different phases. Interference of multiple components that are troublesome in homogeneous systems could be diminished. Meanwhile, limited experimental parameters are involved in tuning the mass transfer instead of the complex kinetic matching and harsh reaction selectivity requirements. As a proof of concept, a transient metallo-supramolecular polymer (MSP) with dynamic luminescent color was constructed in an oil-water biphasic system by controlling the diffusion of the deactivator (water molecules) from the water phase into the oil phase. The lifetime of transient MSP could be precisely regulated not only by the content of chemical fuel, but also factors that affect the efficiency of mass transfer in between phases, such as the volume of the water phase, the stirring rate, and the temperature. We believe this strategy can be further extended to multi-compartment systems with passive diffusion or active transport of components, towards life-like complex assembly systems.
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Affiliation(s)
- Shilin Zhang
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Yulian Zhang
- College of Materials, Xiamen UniversityXiamen 361005P. R. China
| | - Huiting Wu
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Zhihao Li
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Peichen Shi
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Yibin Sun
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Xinchang Wang
- School of Electronic Science and Engineering (National Model Microelectronics College), Xiamen UniversityXiamen 361005P. R. China
| | - Xiaoyu Cao
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Liulin Yang
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
| | - Zhongqun Tian
- State Key Laboratory of Physical Chemistry of Solid Surface, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen UniversityXiamen 361005P. R. China
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16
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Temporally programmed polymer - solvent interactions using a chemical reaction network. Nat Commun 2022; 13:6242. [PMID: 36271045 PMCID: PMC9587023 DOI: 10.1038/s41467-022-33810-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/04/2022] [Indexed: 12/25/2022] Open
Abstract
Out of equilibrium operation of chemical reaction networks (CRNs) enables artificial materials to autonomously respond to their environment by activation and deactivation of intermolecular interactions. Generally, their activation can be driven by various chemical conversions, yet their deactivation to non-interacting building blocks remains largely limited to hydrolysis and internal pH change. To achieve control over deactivation, we present a new, modular CRN that enables reversible formation of positive charges on a tertiary amine substrate, which are removed using nucleophilic signals that control the deactivation kinetics. The modular nature of the CRN enables incorporation in diverse polymer materials, leading to a temporally programmed transition from collapsed and hydrophobic to solvated, hydrophilic polymer chains by controlling polymer-solvent interactions. Depending on the layout of the CRN, we can create stimuli-responsive or autonomously responding materials. This concept will not only offer new opportunities in molecular cargo delivery but also pave the way for next-generation interactive materials.
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17
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Sharko A, Livitz D, De Piccoli S, Bishop KJM, Hermans TM. Insights into Chemically Fueled Supramolecular Polymers. Chem Rev 2022; 122:11759-11777. [PMID: 35674495 DOI: 10.1021/acs.chemrev.1c00958] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Supramolecular polymerization can be controlled in space and time by chemical fuels. A nonassembled monomer is activated by the fuel and subsequently self-assembles into a polymer. Deactivation of the molecule either in solution or inside the polymer leads to disassembly. Whereas biology has already mastered this approach, fully artificial examples have only appeared in the past decade. Here, we map the available literature examples into four distinct regimes depending on their activation/deactivation rates and the equivalents of deactivating fuel. We present increasingly complex mathematical models, first considering only the chemical activation/deactivation rates (i.e., transient activation) and later including the full details of the isodesmic or cooperative supramolecular processes (i.e., transient self-assembly). We finish by showing that sustained oscillations are possible in chemically fueled cooperative supramolecular polymerization and provide mechanistic insights. We hope our models encourage the quantification of activation, deactivation, assembly, and disassembly kinetics in future studies.
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Affiliation(s)
| | - Dimitri Livitz
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | | | - Kyle J M Bishop
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Thomas M Hermans
- University of Strasbourg & CNRS, UMR7140, Strasbourg 67000, France
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18
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Li X, Wang G, Zhang Q, Liu Y, Sun T, Liu S. Dissipative self-assembly of a dual-responsive block copolymer driven by a chemical oscillator. J Colloid Interface Sci 2022; 615:732-739. [DOI: 10.1016/j.jcis.2022.01.183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 12/14/2022]
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19
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Del Giudice D, Frateloreto F, Sappino C, Di Stefano S. Chemical Tools for the Temporal Control of Water Solution pH and Applications in Dissipative Systems. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniele Del Giudice
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Federico Frateloreto
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Carla Sappino
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Stefano Di Stefano
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry Department Piazzale Aldo Moro 5 00185 Rome ITALY
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20
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Német N, Holló G, Schuszter G, Horváth D, Tóth Á, Rossi F, Lagzi I. Application of a chemical clock in material design: chemically programmed synthesis of zeolitic imidazole framework-8. Chem Commun (Camb) 2022; 58:5777-5780. [PMID: 35451438 DOI: 10.1039/d2cc01139e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we show a time-programmed and autonomous synthesis of zeolitic imidazole framework-8 (ZIF-8) using a methylene glycol-sulfite clock reaction. The induction period of the driving clock reaction, thus, the appearance of the ZIF-8 can be adjusted by the initial concentration of one reagent of the chemical clock. The autonomously synthesized ZIF-8 showed excellent morphology and crystallinity.
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Affiliation(s)
- Norbert Német
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, H- 1111, Műegyetem rkp 3., Budapest, Hungary
| | - Gábor Holló
- MTA-BME Condensed Matter Research Group, Budapest University of Technology and Economics, H-1111, Műegyetem rkp 3., Budapest, Hungary.
| | - Gábor Schuszter
- Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Rerrich Béla tér 1, Szeged, Hungary
| | - Dezső Horváth
- Department of Applied and Environmental Chemistry, University of Szeged, H-6720, Rerrich Béla tér 1, Szeged, Hungary
| | - Ágota Tóth
- Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Rerrich Béla tér 1, Szeged, Hungary
| | - Federico Rossi
- Department of Earth, Environmental and Physical Science - DEEP Sciences, University of Siena, Pian dei Mantellini 44, 53100 Siena, Italy
| | - István Lagzi
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, H- 1111, Műegyetem rkp 3., Budapest, Hungary.,MTA-BME Condensed Matter Research Group, Budapest University of Technology and Economics, H-1111, Műegyetem rkp 3., Budapest, Hungary.
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21
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Sharma C, Walther A. Self-Regulating Colloidal Co-Assemblies That Accelerate Their Own Destruction via Chemo-Structural Feedback. Angew Chem Int Ed Engl 2022; 61:e202201573. [PMID: 35235231 PMCID: PMC9311650 DOI: 10.1002/anie.202201573] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Indexed: 11/13/2022]
Abstract
Biological self‐assemblies self‐ and cross‐regulate each other via chemical reaction networks (CRNs) and feedback. Although artificial transient self‐assemblies have been realized via activation/deactivation CRNs, the transient structures themselves do mostly not engage in the CRN. We introduce a rational design approach for chemo‐structural feedback, and present a transient colloidal co‐assembly system, where the formed co‐assemblies accelerate their destruction autonomously. We achieve this by immobilizing enzymes of a deactivating acid‐producing enzymatic cascade on pH‐switchable microgels that can form co‐assemblies at high pH. Since the enzyme partners are immobilized on individual microgels, the co‐assembled state brings them close enough for enhanced acid generation. The amplified deactivator production (acid) leads to an almost two‐fold reduction in the lifetime of the transiently formed pH‐state. Our study thus introduces versatile mechanisms for chemo‐structural feedback.
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Affiliation(s)
- Charu Sharma
- A3BMS Lab, Department of Chemistry, University of Mainz, 55128, Mainz, Germany
| | - Andreas Walther
- A3BMS Lab, Department of Chemistry, University of Mainz, 55128, Mainz, Germany.,Cluster of Excellence livMats @ FIT, Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79098, Freiburg, Germany
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22
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Bi-directional feedback controlled transience in Cucurbituril based tandem nanozyme. J Colloid Interface Sci 2022; 614:172-180. [DOI: 10.1016/j.jcis.2022.01.092] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/06/2022] [Accepted: 01/15/2022] [Indexed: 02/02/2023]
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23
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Das S, Das T, Das P, Das D. Controlling the lifetime of cucurbit[8]uril based self-abolishing nanozymes. Chem Sci 2022; 13:4050-4057. [PMID: 35440999 PMCID: PMC8985584 DOI: 10.1039/d1sc07203j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 02/14/2022] [Indexed: 11/21/2022] Open
Abstract
Nature has evolved a unique mechanism of self-regulatory feedback loops that help in maintaining an internal cellular environment conducive to growth, healing and metabolism. In biology, enzymes display feedback controlled switchable behaviour to upregulate/downregulate the generation of metabolites as per the need of the cells. To mimic the self-inhibitory nature of certain biological enzymes under laboratory settings, herein, we present a cucurbit[8]uril based pH responsive supramolecular peptide amphiphile (SPA) that assembles into hydrolase mimetic vesicular nanozymes upon addition of alkaline TRIS buffer (activator) but disintegrates gradually owing to the catalytic generation of acidic byproducts (deactivator). The lifetime of these nanozymes could be manipulated in multiple ways, either by varying the amount of catalytic groups on the surface of the vesicles, by changing the acid generating substrate, or by changing the ratio between the activator and the substrate. The self-inhibitory nanozymes displayed highly tunable lifetimes ranging from minutes to hours, controlled and in situ generation of deactivating agents and efficient reproducibility across multiple pH cycles.
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Affiliation(s)
- Saurav Das
- Department of Chemistry, Indian Institute of Technology Guwahati Assam 781039 India
| | - Tanushree Das
- Department of Chemistry, Indian Institute of Technology Guwahati Assam 781039 India
| | - Priyam Das
- Department of Chemistry, Indian Institute of Technology Guwahati Assam 781039 India
| | - Debapratim Das
- Department of Chemistry, Indian Institute of Technology Guwahati Assam 781039 India
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24
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Paikar A, Novichkov AI, Hanopolskyi AI, Smaliak VA, Sui X, Kampf N, Skorb EV, Semenov SN. Spatiotemporal Regulation of Hydrogel Actuators by Autocatalytic Reaction Networks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106816. [PMID: 34910837 DOI: 10.1002/adma.202106816] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/26/2021] [Indexed: 06/14/2023]
Abstract
Regulating hydrogel actuators with chemical reaction networks is instrumental for constructing life-inspired smart materials. Herein, hydrogel actuators are engineered that are regulated by the autocatalytic front of thiols. The actuators consist of two layers. The first layer, which is regular polyacrylamide hydrogel, is in a strained conformation. The second layer, which is polyacrylamide hydrogel with disulfide crosslinks, maintains strain in the first layer. When thiols released by the autocatalytic front reduce disulfide crosslinks, the hydrogel actuates by releasing the mechanical strain in the first layer. The autocatalytic front is sustained by the reaction network, which uses thiouronium salts, disulfides of β-aminothiols, and maleimide as starting components. The gradual actuation by the autocatalytic front enables movements such as gradual unrolling, screwing, and sequential closing of "fingers." This actuation also allows the transmission of chemical signals in a relay fashion and the conversion of a chemical signal to an electrical signal. Locations and times of spontaneous initiation of autocatalytic fronts can be preprogrammed in the spatial distribution of the reactants in the hydrogel. To approach the functionality of living matter, the actuators triggered by an autocatalytic front can be integrated into smart materials regulated by chemical circuits.
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Affiliation(s)
- Arpita Paikar
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Alexander I Novichkov
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Anton I Hanopolskyi
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Viktoryia A Smaliak
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Xiaomeng Sui
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Nir Kampf
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Ekaterina V Skorb
- Infochemistry Scientific Center, ITMO University, Saint Petersburg, 191002, Russia
| | - Sergey N Semenov
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
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25
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Sharma C, Walther A. Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Charu Sharma
- A3BMS Lab Department of Chemistry University of Mainz 55128 Mainz Germany
| | - Andreas Walther
- A3BMS Lab Department of Chemistry University of Mainz 55128 Mainz Germany
- Cluster of Excellence livMats @ FIT Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg 79098 Freiburg Germany
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26
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Li M, Ma Z, Pan C, Zhang X, Zhang W, Yang B, Li Y. Chemical Fuel Mediated Self-Regulatory Polymer Brushes for Autonomous Fluorescence Modulator and Wettability Switcher. Macromol Rapid Commun 2022; 43:e2100878. [PMID: 35080275 DOI: 10.1002/marc.202100878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/24/2022] [Indexed: 11/06/2022]
Abstract
Synthetic systems of non-equilibrium self-assembly have made considerable progress, however, the achievement of innovative materials with self-regulated functions analogous to living systems remains a grand challenge. Herein, we report a versatile non-equilibrium system of polymer brushes with spatiotemporally programmable properties and functions driven by chemical fuels. By combining a responsive polymer with an autonomous pH regulator, the polymer brushes self-regulate their swelling and deswelling process with tunable lifetimes. By using patterned copolymer brushes with pH-responsive fluorescence moiety, we create an autonomous fluorescence modulator that self-regulates its fluorescence in spatiotemporally programmable fashion driven by a chemical or an enzymatic reaction. Furthermore, we implement a self-regulated wettability switcher of polymer brushes both in air and in an aqueous solution. The methodology and results in this work provide a useful avenue into the exploration of non-equilibrium synthetic materials with programmable functions and would accelerate the transformative developments of non-equilibrium materials and systems in practical applications. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Mengyuan Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Ziwen Ma
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Chunyu Pan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xiaoye Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Wenke Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yunfeng Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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27
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Német N, Miele Y, Shuszter G, Tóth EL, Maróti JE, Szabó PJ, Rossi F, Lagzi I. Inhibition of the urea-urease reaction by the components of the zeolite imidazole frameworks-8 and the formation of urease-zinc-imidazole hybrid compound. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-021-02139-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
AbstractIn the past decade, much effort has been devoted to using chemical clock-type reactions in material design and driving the self-assembly of various building blocks. Urea-urease enzymatic reaction has chemical pH clock behavior in an unbuffered medium, in which the induction time and the final pH can be programmed by the concentrations of the reagents. The urea-urease reaction can offer a new alternative in material synthesis, where the pH and its course in time are crucial factors in the synthesis. However, before using it in any synthesis method, it is important to investigate the possible effects of the reagents on the enzymatic reaction. Here we investigate the effect of the reagents of the zeolite imidazole framework-8 (zinc ions and 2-methylimidazole) on the urea-urease reaction. We have chosen the zeolite imidazole framework-8 because its formation serves as a model reaction for the formation of other metal–organic frameworks. We found that, besides the inhibition effect of the zinc ions which is well-known in the literature, 2-methylimidazole inhibits the enzymatic reaction as well. In addition to the observed inhibition effect, we report the formation of a hybrid urease-zinc-2-methylimidazole hybrid material. To support the inhibition effect, we developed a kinetic model which reproduced qualitatively the experimentally observed kinetic curves.
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28
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Spatola E, Rispoli F, Del Giudice D, Cacciapaglia R, Casnati A, Marchiò L, Baldini L, Di Stefano S. Dissipative control of the fluorescence of a 1,3-dipyrenyl calix[4]arene in the cone conformation. Org Biomol Chem 2021; 20:132-138. [PMID: 34816861 DOI: 10.1039/d1ob02096j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The temporal control (ON/OFF/ON) of the fluorescence of a dichloromethane/acetonitrile 1 : 1 solution of calixarene 3 decorated with two pyrenyl moieties at the upper rim is attained by the addition of CCl3CO2H used as a convenient chemical fuel.
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Affiliation(s)
- Emanuele Spatola
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
| | - Francesco Rispoli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Daniele Del Giudice
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
| | - Roberta Cacciapaglia
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
| | - Alessandro Casnati
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Luciano Marchiò
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Laura Baldini
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Stefano Di Stefano
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
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29
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Niebuur BJ, Hegels H, Tena-Solsona M, Schwarz PS, Boekhoven J, Papadakis CM. Droplet Formation by Chemically Fueled Self-Assembly: The Role of Precursor Hydrophobicity. J Phys Chem B 2021; 125:13542-13551. [PMID: 34851128 DOI: 10.1021/acs.jpcb.1c08034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We investigate active droplets that form at the expense of a chemical fuel in aqueous buffer and vanish autonomously. Dynamic light scattering reveals the scattered intensity, the hydrodynamic radius, and the width of the size distribution with high precision as well as high temporal and spatial resolutions. Comparing the resulting time-dependent behavior of the droplet characteristics with the time-dependent concentration of the anhydrides, the roles of the chemical reaction cycle and of colloidal growth processes are elucidated. The droplet sizes and lifetimes depend strongly on the hydrophobicity of the precursor, and the growth rate is found to correlate with the deactivation rate of the product.
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Affiliation(s)
- Bart-Jan Niebuur
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
| | - Hendrik Hegels
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
| | - Marta Tena-Solsona
- Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany.,Institute for Advanced Studies, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching, Germany
| | - Patrick S Schwarz
- Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Job Boekhoven
- Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany.,Institute for Advanced Studies, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching, Germany
| | - Christine M Papadakis
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
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30
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Dodo OJ, Petit L, Rajawasam CWH, Hartley CS, Konkolewicz D. Tailoring Lifetimes and Properties of Carbodiimide-Fueled Covalently Cross-linked Polymer Networks. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Obed J. Dodo
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Leilah Petit
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Chamoni W. H. Rajawasam
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - C. Scott Hartley
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Dominik Konkolewicz
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
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31
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Niehues M, Engel S, Ravoo BJ. Photo-Responsive Self-Assembly of Plasmonic Magnetic Janus Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11123-11130. [PMID: 34499520 DOI: 10.1021/acs.langmuir.1c01979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Stimuli-responsive self-assembly of nanoparticles is a versatile approach for the bottom-up fabrication of adaptive and functional nanomaterials. For this purpose, anisotropic building blocks are of particular importance due to the unique shapes and structures that can be obtained upon self-assembly. Here, we demonstrate the photo-responsive self-assembly of plasmonic magnetic "dumbbell" Janus nanoparticles (Au-Fe3O4) via the host-guest interaction of the supramolecular host cyclodextrin and the molecular photoswitch arylazopyrazole. We developed efficient ligand exchange procedures that enable the introduction of functional ligands, respectively, to the surface of the gold or magnetite core of the dumbbell. Our results indicate that distinct nanoparticle superstructures arise in aqueous solutions if nanoparticle aggregation is crosslinker-induced or self-induced and that the reversible formation and fragmentation of the superstructures can be modulated with light.
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Affiliation(s)
- Maximilian Niehues
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, D-48149 Münster, Germany
- Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, D-48149 Münster, Germany
| | - Sabrina Engel
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, D-48149 Münster, Germany
- Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, D-48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, D-48149 Münster, Germany
- Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster, Busso-Peus-Straße 10, D-48149 Münster, Germany
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32
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Mariottini D, Del Giudice D, Ercolani G, Di Stefano S, Ricci F. Dissipative operation of pH-responsive DNA-based nanodevices. Chem Sci 2021; 12:11735-11739. [PMID: 34659709 PMCID: PMC8442697 DOI: 10.1039/d1sc03435a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 07/16/2021] [Indexed: 12/18/2022] Open
Abstract
We demonstrate here the use of 2-(4-chlorophenyl)-2-cyanopropanoic acid (CPA) and nitroacetic acid (NAA) as convenient chemical fuels to drive the dissipative operation of DNA-based nanodevices. Addition of either of the fuel acids to a water solution initially causes a rapid transient pH decrease, which is then followed by a slower pH increase. We have employed such low-to-high pH cycles to control in a dissipative way the operation of two model DNA-based nanodevices: a DNA nanoswitch undergoing time-programmable open–close–open cycles of motion, and a DNA-based receptor able to release-uptake a DNA cargo strand. The kinetics of the transient operation of both systems can be easily modulated by varying the concentration of the acid fuel added to the solution and both acid fuels show an efficient reversibility which further supports their versatility. We demonstrate here the use of 2-(4-chlorophenyl)-2-cyanopropanoic acid (CPA) and nitroacetic acid (NAA) as convenient chemical fuels to drive the dissipative operation of DNA-based nanodevices.![]()
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Affiliation(s)
- Davide Mariottini
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Roma Italy
| | - Daniele Del Giudice
- Dipartimento di Chimica, Università di Roma La Sapienza, ISB-CNR Sede Secondaria di Roma-Meccanismi di Reazione P.le A. Moro 5 00185 Roma Italy
| | - Gianfranco Ercolani
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Roma Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università di Roma La Sapienza, ISB-CNR Sede Secondaria di Roma-Meccanismi di Reazione P.le A. Moro 5 00185 Roma Italy
| | - Francesco Ricci
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Roma Italy
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33
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Sheehan F, Sementa D, Jain A, Kumar M, Tayarani-Najjaran M, Kroiss D, Ulijn RV. Peptide-Based Supramolecular Systems Chemistry. Chem Rev 2021; 121:13869-13914. [PMID: 34519481 DOI: 10.1021/acs.chemrev.1c00089] [Citation(s) in RCA: 135] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Peptide-based supramolecular systems chemistry seeks to mimic the ability of life forms to use conserved sets of building blocks and chemical reactions to achieve a bewildering array of functions. Building on the design principles for short peptide-based nanomaterials with properties, such as self-assembly, recognition, catalysis, and actuation, are increasingly available. Peptide-based supramolecular systems chemistry is starting to address the far greater challenge of systems-level design to access complex functions that emerge when multiple reactions and interactions are coordinated and integrated. We discuss key features relevant to systems-level design, including regulating supramolecular order and disorder, development of active and adaptive systems by considering kinetic and thermodynamic design aspects and combinatorial dynamic covalent and noncovalent interactions. Finally, we discuss how structural and dynamic design concepts, including preorganization and induced fit, are critical to the ability to develop adaptive materials with adaptive and tunable photonic, electronic, and catalytic properties. Finally, we highlight examples where multiple features are combined, resulting in chemical systems and materials that display adaptive properties that cannot be achieved without this level of integration.
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Affiliation(s)
- Fahmeed Sheehan
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York 85 St. Nicholas Terrace New York, New York 10031, United States.,Department of Chemistry, Hunter College City University of New York 695 Park Avenue, New York, New York 10065, United States.,Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 fifth Avenue, New York, New York 10016, United States
| | - Deborah Sementa
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York 85 St. Nicholas Terrace New York, New York 10031, United States
| | - Ankit Jain
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York 85 St. Nicholas Terrace New York, New York 10031, United States
| | - Mohit Kumar
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York 85 St. Nicholas Terrace New York, New York 10031, United States.,Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, Barcelona 08028, Spain
| | - Mona Tayarani-Najjaran
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York 85 St. Nicholas Terrace New York, New York 10031, United States.,Department of Chemistry, Hunter College City University of New York 695 Park Avenue, New York, New York 10065, United States.,Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 fifth Avenue, New York, New York 10016, United States
| | - Daniela Kroiss
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York 85 St. Nicholas Terrace New York, New York 10031, United States.,Department of Chemistry, Hunter College City University of New York 695 Park Avenue, New York, New York 10065, United States.,Ph.D. Program in Biochemistry The Graduate Center of the City University of New York 365 5th Avenue, New York, New York 10016, United States
| | - Rein V Ulijn
- Advanced Science Research Center (ASRC) at the Graduate Center City University of New York 85 St. Nicholas Terrace New York, New York 10031, United States.,Department of Chemistry, Hunter College City University of New York 695 Park Avenue, New York, New York 10065, United States.,Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 fifth Avenue, New York, New York 10016, United States.,Ph.D. Program in Biochemistry The Graduate Center of the City University of New York 365 5th Avenue, New York, New York 10016, United States
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34
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Bian T, Klajn R. Morphology control in crystalline nanoparticle-polymer aggregates. Ann N Y Acad Sci 2021; 1505:191-201. [PMID: 34427923 PMCID: PMC9291468 DOI: 10.1111/nyas.14674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/06/2021] [Accepted: 07/14/2021] [Indexed: 01/24/2023]
Abstract
Self‐assembly of nanoparticles can be mediated by polymers, but has so far led almost exclusively to nanoparticle aggregates that are amorphous. Here, we employed Coulombic interactions to generate a range of composite materials from mixtures of charged nanoparticles and oppositely charged polymers. The assembly behavior of these nanoparticle/polymer composites depends on their order of addition: polymers added to nanoparticles give rise to stable aggregates, but nanoparticles added to polymers disassemble the initially formed aggregates. The amorphous aggregates were transformed into crystalline ones by transiently increasing the ionic strength of the solution. The morphology of the resulting crystals depended on the length of the polymer: short polymer chains mediated the self‐assembly of nanoparticles into strongly faceted crystals, whereas long chains led to pseudospherical nanoparticle/polymer assemblies, within which the crystalline order of nanoparticles was retained.
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Affiliation(s)
- Tong Bian
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, Israel
| | - Rafal Klajn
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, Israel
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35
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Heckel J, Batti F, Mathers RT, Walther A. Spinodal decomposition of chemically fueled polymer solutions. SOFT MATTER 2021; 17:5401-5409. [PMID: 33969370 DOI: 10.1039/d1sm00515d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Out-of-equilibrium phase transitions driven by dissipation of chemical energy are a common mechanism for morphological organization and temporal programming in biology. Inspired by this, dissipative self-assembly utilizes chemical reaction networks (CRNs) that consume high-energy molecules (chemical fuels) to generate transient structures and functionality. While a wide range of chemical fuels and building blocks are now available for chemically fueled systems, so far little attention has been paid to the phase-separation process itself. Herein, we investigate the chemically fueled spinodal decomposition of poly(norbornene dicarboxylic acid) (PNDAc) solution, which is driven by a cyclic chemical reaction network. Our analysis encompasses both the molecular level in terms of the CRN, but also the phase separation process. We investigate the morphology of formed domains, as well as the kinetics and mechanism of domain growth, and develop a kinetic/thermodynamic hybrid model to not only rationalize the dependence of the system on fuel concentration and pH, but also open pathways towards predictive design of future fueled polymer systems.
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Affiliation(s)
- Jonas Heckel
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany and Freiburg Materials Research Center (FMF), University of Freiburg, Stefan-Meier-Str. 21, 79104 Freiburg, Germany and Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
| | - Fabio Batti
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, 79104 Freiburg, Germany
| | - Robert T Mathers
- Department of Chemistry, Pennsylvania State University, New Kensington, PA 15068, USA.
| | - Andreas Walther
- A3BMS Lab, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany. and Cluster of Excellence livMatS @ FIT - Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
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36
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Autocatalytic and oscillatory reaction networks that form guanidines and products of their cyclization. Nat Commun 2021; 12:2994. [PMID: 34016981 PMCID: PMC8138026 DOI: 10.1038/s41467-021-23206-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/26/2021] [Indexed: 11/08/2022] Open
Abstract
Autocatalytic and oscillatory networks of organic reactions are important for designing life-inspired materials and for better understanding the emergence of life on Earth; however, the diversity of the chemistries of these reactions is limited. In this work, we present the thiol-assisted formation of guanidines, which has a mechanism analogous to that of native chemical ligation. Using this reaction, we designed autocatalytic and oscillatory reaction networks that form substituted guanidines from thiouronium salts. The thiouronium salt-based oscillator show good stability of oscillations within a broad range of experimental conditions. By using nitrile-containing starting materials, we constructed an oscillator where the concentration of a bicyclic derivative of dihydropyrimidine oscillates. Moreover, the mixed thioester and thiouronium salt-based oscillator show unique responsiveness to chemical cues. The reactions developed in this work expand our toolbox for designing out-of-equilibrium chemical systems and link autocatalytic and oscillatory chemistry to the synthesis of guanidinium derivatives and the products of their transformations including analogs of nucleobases. So far, only a few chemical oscillators based on organic reactions have been developed. Here, the authors report both autocatalytic and oscillatory reaction networks that form substituted guanidines from thiouronium salts; when coupled to cascade cyclization, this reaction network produces oscillations in the production of pyrimidine-based heterocycles.
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37
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Fan X, Walther A. pH Feedback Lifecycles Programmed by Enzymatic Logic Gates Using Common Foods as Fuels. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xinlong Fan
- Institute for Macromolecular Chemistry University of Freiburg Stefan-Meier-Str. 31 79104 Freiburg Germany
| | - Andreas Walther
- Institute for Macromolecular Chemistry University of Freiburg Stefan-Meier-Str. 31 79104 Freiburg Germany
- A3BMS Lab Department of Chemistry University of Mainz Duesbergweg 10–14 55128 Mainz Germany
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38
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Fan X, Walther A. pH Feedback Lifecycles Programmed by Enzymatic Logic Gates Using Common Foods as Fuels. Angew Chem Int Ed Engl 2021; 60:11398-11405. [PMID: 33682231 PMCID: PMC8252529 DOI: 10.1002/anie.202017003] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/22/2021] [Indexed: 12/12/2022]
Abstract
Artificial temporal signaling systems, which mimic living out-of-equilibrium conditions, have made large progress. However, systems programmed by enzymatic reaction networks in multicomponent and unknown environments, and using biocompatible components remain a challenge. Herein, we demonstrate an approach to program temporal pH signals by enzymatic logic gates. They are realized by an enzymatic disaccharide-to-monosaccharide-to-sugar acid reaction cascade catalyzed by two metabolic chains: invertase-glucose oxidase and β-galactosidase-glucose oxidase, respectively. Lifetimes of the transient pH signal can be programmed from less than 15 min to more than 1 day. We study enzymatic kinetics of the reaction cascades and reveal the underlying regulatory mechanisms. Operating with all-food grade chemicals and coupling to self-regulating hydrogel, our system is quite robust to work in a complicated medium with unknown components and in a biocompatible fashion.
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Affiliation(s)
- Xinlong Fan
- Institute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
| | - Andreas Walther
- Institute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
- ABMS LabDepartment of ChemistryUniversity of MainzDuesbergweg 10–1455128MainzGermany
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39
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Del Giudice D, Spatola E, Valentini M, Bombelli C, Ercolani G, Di Stefano S. Time-programmable pH: decarboxylation of nitroacetic acid allows the time-controlled rising of pH to a definite value. Chem Sci 2021; 12:7460-7466. [PMID: 34163836 PMCID: PMC8171335 DOI: 10.1039/d1sc01196k] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/21/2021] [Indexed: 12/24/2022] Open
Abstract
In this report it is shown that nitroacetic acid 1 (O2NCH2CO2H) can be conveniently used to control the pH of a water solution over time. Time-programmable sequences of the kind pH1(high)-pH2(low)-pH3(high) can be achieved, where both the extent of the initial pH jump (pH1(high)-pH2(low)) and the time required for the subsequent pH rising (pH2(low)-pH3(high)) can be predictably controlled by a judicious choice of the absolute and relative concentrations of the reagents (acid 1 and NaOH). Successive pH1(high)-pH2(low)-pH3(high) sequences can be obtained by subsequent additions of acid 1. As a proof of concept, the method is applied to control over time the pH-dependent host-guest interaction between alpha-cyclodextrin and p-aminobenzoic acid.
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Affiliation(s)
- Daniele Del Giudice
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Emanuele Spatola
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Matteo Valentini
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Cecilia Bombelli
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Gianfranco Ercolani
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Rome Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
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40
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Heckel J, Loescher S, Mathers RT, Walther A. Chemically Fueled Volume Phase Transition of Polyacid Microgels. Angew Chem Int Ed Engl 2021; 60:7117-7125. [PMID: 33340387 PMCID: PMC8048534 DOI: 10.1002/anie.202014417] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/10/2020] [Indexed: 11/17/2022]
Abstract
Microgels are soft colloids that show responsive behavior and are easy to functionalize for applications. They are considered key components for future smart colloidal material systems. However, so far microgel systems have almost exclusively been studied in classical responsive switching settings using external triggers, while internally organized, autonomous control mechanisms as found in supramolecular chemistry and DNA nanotechnology relying on fuel-driven out-of-equilibrium concepts have not been implemented into microgel systems. Here, we introduce chemically fueled transient volume phase transitions (VPTs) for poly(methacrylic acid) (PMAA) microgels, where the collapsed hydrophobic state can be programmed using the fuel concentration in a cyclic reaction network. We discuss details of the system behavior as a function of pH and fuel amount, unravel kinetically trapped regions and showcase transient encapsulation and time-programmed release as a first application.
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Affiliation(s)
- Jonas Heckel
- Institute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
- Freiburg Materials Research Center (FMF)University of FreiburgStefan-Meier-Str. 2179104FreiburgGermany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT)University of FreiburgGeorges-Köhler-Allee 10579110FreiburgGermany
| | - Sebastian Loescher
- Institute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
- Freiburg Materials Research Center (FMF)University of FreiburgStefan-Meier-Str. 2179104FreiburgGermany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT)University of FreiburgGeorges-Köhler-Allee 10579110FreiburgGermany
| | - Robert T. Mathers
- Department of ChemistryPennsylvania State UniversityNew KensingtonPA15068USA
| | - Andreas Walther
- ABMS LabDepartment of ChemistryUniversity of MainzDuesbergweg 10–1455128MainzGermany
- Cluster of Excellence livMatS @ FIT—Freiburg Center for Interactive Materials and Bioinspired TechnologiesUniversity of FreiburgGeorges-Köhler-Allee 10579110FreiburgGermany
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41
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Heckel J, Loescher S, Mathers RT, Walther A. Chemically Fueled Volume Phase Transition of Polyacid Microgels. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014417] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jonas Heckel
- Institute for Macromolecular Chemistry University of Freiburg Stefan-Meier-Str. 31 79104 Freiburg Germany
- Freiburg Materials Research Center (FMF) University of Freiburg Stefan-Meier-Str. 21 79104 Freiburg Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT) University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
| | - Sebastian Loescher
- Institute for Macromolecular Chemistry University of Freiburg Stefan-Meier-Str. 31 79104 Freiburg Germany
- Freiburg Materials Research Center (FMF) University of Freiburg Stefan-Meier-Str. 21 79104 Freiburg Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT) University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
| | - Robert T. Mathers
- Department of Chemistry Pennsylvania State University New Kensington PA 15068 USA
| | - Andreas Walther
- A3BMS Lab Department of Chemistry University of Mainz Duesbergweg 10–14 55128 Mainz Germany
- Cluster of Excellence livMatS @ FIT—Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
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42
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Fan X, Walther A. Autonomous Transient pH Flips Shaped by Layered Compartmentalization of Antagonistic Enzymatic Reactions. Angew Chem Int Ed Engl 2021; 60:3619-3624. [PMID: 33098236 PMCID: PMC7898518 DOI: 10.1002/anie.202009542] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 10/10/2020] [Indexed: 12/13/2022]
Abstract
Transient signaling orchestrates complex spatiotemporal behaviour in living organisms via (bio)chemical reaction networks (CRNs). Compartmentalization of signal processing is an important aspect for controlling such networks. However, artificial CRNs mostly focus on homogeneous solutions to program autonomous self-assembling systems, which limits their accessible behaviour and tuneability. Here, we introduce layered compartments housing antagonistic pH-modulating enzymes and demonstrate that transient pH signals in a supernatant solution can be programmed based on spatial delays. This overcomes limitations of activity mismatches of antagonistic enzymes in solution and allows to flexibly program acidic and alkaline pH lifecycles beyond the possibilities of homogeneous solutions. Lag time, lifetime, and the pH minima and maxima can be precisely programmed by adjusting spatial and kinetic conditions. We integrate these spatially controlled pH flips with switchable peptides, furnishing time-programmed self-assemblies and hydrogel material system.
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Affiliation(s)
- Xinlong Fan
- ABMS Lab-Active Adaptive and Autonomous Bioinspired MaterialsInstitute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
- Freiburg Materials Research Center (FMF)University of FreiburgStefan-Meier-Str. 2179104FreiburgGermany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT)University of FreiburgGeorges-Köhler-Allee 10579110FreiburgGermany
- Cluster of Excellence livMatS @ FIT-Freiburg Center for Interactive Materials and Bioinspired TechnologiesUniversity of FreiburgGeorges-Köhler-Allee 10579110FreiburgGermany
| | - Andreas Walther
- ABMS Lab-Active Adaptive and Autonomous Bioinspired MaterialsInstitute for Macromolecular ChemistryUniversity of FreiburgStefan-Meier-Str. 3179104FreiburgGermany
- Freiburg Materials Research Center (FMF)University of FreiburgStefan-Meier-Str. 2179104FreiburgGermany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT)University of FreiburgGeorges-Köhler-Allee 10579110FreiburgGermany
- Cluster of Excellence livMatS @ FIT-Freiburg Center for Interactive Materials and Bioinspired TechnologiesUniversity of FreiburgGeorges-Köhler-Allee 10579110FreiburgGermany
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Rao A, Roy S, Pillai PP. Temporal Changes in Interparticle Interactions Drive the Formation of Transiently Stable Nanoparticle Precipitates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1843-1849. [PMID: 33502873 DOI: 10.1021/acs.langmuir.0c03239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We demonstrate the power of fine-tuned interparticle interactions, emanating from appropriately functionalized surfaces, in creating self-assembled structures that show a transient switching between completely precipitated and redispersed stages of nanoparticles (NPs). The pH-dependent temporal changes in the strength of electrostatic interactions are explored to unveil a transient self-assembly response in plasmonic NPs. The assembly process was triggered by the electrostatic attraction between positively charged gold NPs (AuNPs) and an aggregating agent, ethylenediaminetetraacetic acid (EDTA). The autonomous changes in the pH and ionic strength of the solution, under the influence of atmospheric CO2, weaken the aggregating ability of EDTA and initiate the complete disassembly of [+] AuNP-EDTA precipitates. The use of a nondestructive mode of autonomous disassembly helped in achieving some of the desirable feats in the field of transient self-assembly such as easy removal of waste, formation of a transiently stable precipitate state, and negligible dampness in redispersion. The chemical strategy adopted in the present work, to introduce transientness, can act as a generic tool in creating the next generation of complex matter.
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Affiliation(s)
- Anish Rao
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Soumendu Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Pramod P Pillai
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
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Dhiman S, Singh A, George SJ. Active Bicomponent Nanoparticle Assembly with Temporal, Microstructural, and Functional Control. Chemistry 2021; 27:705-711. [PMID: 32697396 DOI: 10.1002/chem.202003415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Indexed: 12/15/2022]
Abstract
Transient supramolecular self-assembly has evolved as a tool to create temporally programmable smart materials. Yet, so far single-component self-assembly has been mostly explored. In contrast, multicomponent self-assembly provides an opportunity to create unique nanostructures exhibiting complex functional outcomes, newer and different than individual components. Even two-component can result in multiple organizations, such as self-sorted domains or co-assembled heterostructures, can occur, thus making it highly complex to predict and reversibly modulate these microstructures. In this study, we attempted to create active bicomponent nanoparticle assemblies of orthogonally pH-responsive-group-functionalized gold and cadmium selenide nanoparticles with temporal microstructural control on their composition (self-sorted or co-assembly) in order to harvest their emergent transient photocatalytic activity by coupling to temporal changes in pH. Moving towards multicomponent systems can deliver next level control in terms of structural and functional outcomes of supramolecular systems.
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Affiliation(s)
- Shikha Dhiman
- Supramolecular Chemistry Laboratory, School of Advanced Materials (SAMat) and New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
| | - Akanksha Singh
- Supramolecular Chemistry Laboratory, School of Advanced Materials (SAMat) and New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
| | - Subi J George
- Supramolecular Chemistry Laboratory, School of Advanced Materials (SAMat) and New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
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45
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46
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Mondal S, Haldar D. A transient non-covalent hydrogel by a supramolecular gelator with dynamic covalent bonds. NEW J CHEM 2021. [DOI: 10.1039/d0nj05992g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In aqueous solution, equilibrium self-assembly and gelation occur at higher concentration but on addition of EDC non-equilibrium self-assembly and transient hydrogels are formed at low concentration, which dissolve upon anhydride hydrolysis.
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Affiliation(s)
- Sahabaj Mondal
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur-741246
- India
| | - Debasish Haldar
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur-741246
- India
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47
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Fan X, Walther A. Autonomous Transient pH Flips Shaped by Layered Compartmentalization of Antagonistic Enzymatic Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009542] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xinlong Fan
- A3BMS Lab-Active Adaptive and Autonomous Bioinspired Materials Institute for Macromolecular Chemistry University of Freiburg Stefan-Meier-Str. 31 79104 Freiburg Germany
- Freiburg Materials Research Center (FMF) University of Freiburg Stefan-Meier-Str. 21 79104 Freiburg Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT) University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
- Cluster of Excellence livMatS @ FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
| | - Andreas Walther
- A3BMS Lab-Active Adaptive and Autonomous Bioinspired Materials Institute for Macromolecular Chemistry University of Freiburg Stefan-Meier-Str. 31 79104 Freiburg Germany
- Freiburg Materials Research Center (FMF) University of Freiburg Stefan-Meier-Str. 21 79104 Freiburg Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT) University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
- Cluster of Excellence livMatS @ FIT-Freiburg Center for Interactive Materials and Bioinspired Technologies University of Freiburg Georges-Köhler-Allee 105 79110 Freiburg Germany
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48
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Mondal S, Podder D, Nandi SK, Roy Chowdhury S, Haldar D. Acid-responsive fibrillation and urease-assisted defibrillation of phenylalanine: a transient supramolecular hydrogel. SOFT MATTER 2020; 16:10115-10121. [PMID: 32761013 DOI: 10.1039/d0sm00774a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The aggregation of proteins and peptides into fibrils is associated with many neurodegenerative diseases in humans, including Alzheimer's disease, Parkinson's disease and non-neurological type-II diabetes. A better understanding of the fibril formation process and defibrillation using biochemical tools is highly important for therapeutics. Under physiological conditions, acidic pH promotes the formation of toxic fibrils. Here, a mimic of living systems has been achieved by the acid-responsive assembly of benzyloxycarbonyl-l-phenylalanine to fibrils, as well as the urease-assisted disassembly of the said fibrils. The simultaneous incorporation of the two triggers helped to prepare a transient supramolecular hydrogel from benzyloxycarbonyl-l-phenylalanine-entangled fibrils with a high degree of control over the self-assembly lifetime and mechanical properties. Further, under acidic pH, the compound formed the O-HO[double bond, length as m-dash]C hydrogen-bonded dimer. The dimers were further self-assembled by intermolecular N-HO[double bond, length as m-dash]C hydrogen bonds and π-π stacking interactions to form fibrils with high mechanical properties, from this simple molecule. However, the self-assembly process is dynamic. Hence, the in situ-generated NH3 uniformly increased the pH and led to the homogeneous disassembly of the fibrils. Thus, this report provides a valuable approach to defibrillation.
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Affiliation(s)
- Sahabaj Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India.
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van der Helm MP, Wang CL, Fan B, Macchione M, Mendes E, Eelkema R. Organocatalytic Control over a Fuel-Driven Transient-Esterification Network*. Angew Chem Int Ed Engl 2020; 59:20604-20611. [PMID: 32700406 PMCID: PMC7693295 DOI: 10.1002/anie.202008921] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Indexed: 12/20/2022]
Abstract
Signal transduction in living systems is the conversion of information into a chemical change, and is the principal process by which cells communicate. In nature, these functions are encoded in non-equilibrium (bio)chemical reaction networks (CRNs) controlled by enzymes. However, man-made catalytically controlled networks are rare. We incorporated catalysis into an artificial fuel-driven out-of-equilibrium CRN, where the forward (ester formation) and backward (ester hydrolysis) reactions are controlled by varying the ratio of two organocatalysts: pyridine and imidazole. This catalytic regulation enables full control over ester yield and lifetime. This fuel-driven strategy was expanded to a responsive polymer system, where transient polymer conformation and aggregation are controlled through fuel and catalyst levels. Altogether, we show that organocatalysis can be used to control a man-made fuel-driven system and induce a change in a macromolecular superstructure, as in natural non-equilibrium systems.
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Affiliation(s)
- Michelle P van der Helm
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, The Netherlands
| | - Chang-Lin Wang
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, The Netherlands
| | - Bowen Fan
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, The Netherlands
| | - Mariano Macchione
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, The Netherlands
| | - Eduardo Mendes
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, The Netherlands
| | - Rienk Eelkema
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629, HZ, Delft, The Netherlands
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Mishra A, Dhiman S, George SJ. ATP‐Driven Synthetic Supramolecular Assemblies: From ATP as a Template to Fuel. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006614] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ananya Mishra
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Shikha Dhiman
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Subi J. George
- Supramolecular Chemistry Laboratory New Chemistry Unit School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
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