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Muthwill MS, Bina M, Paracini N, Coats JP, Merget S, Yorulmaz Avsar S, Messmer D, Tiefenbacher K, Palivan CG. Planar Polymer Membranes Accommodate Functional Self-Assembly of Inserted Resorcinarene Nanocapsules. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38422470 DOI: 10.1021/acsami.3c18687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Solid-supported polymer membranes (SSPMs) offer great potential in material and life sciences due to their increased mechanical stability and robustness compared to solid-supported lipid membranes. However, there is still a need for expanding the functionality of SSPMs by combining them with synthetic molecular assemblies. In this study, SSPMs served as a flexible matrix for the insertion of resorcinarene monomers and their self-assembly into functional hexameric resorcinarene capsules. Resorcinarene capsules provide a large cavity with affinity specifically for cationic and polyhydroxylated molecules. While the capsules are stable in apolar organic solvents, they disassemble when placed in polar solvents, which limits their application. Here, a solvent-assisted approach was used for copolymer membrane deposition on solid support and simultaneous insertion of the resorcinarene monomers. By investigation of the molecular factors and conditions supporting the codeposition of the copolymer and resorcinarene monomers, a stable hybrid membrane was formed. The hydrophobic domain of the membrane played a crucial role by providing a sufficiently thick and apolar layer, allowing for the self-assembly of the capsules. The capsules were functional inside the membranes by encapsulating cationic guests from the aqueous environment. The amount of resorcinarene capsules in the hybrid membranes was quantified by a combination of quartz-crystal microbalance with dissipation and liquid chromatography-mass spectrometry, while the membrane topography and layer composition were analyzed by atomic force microscopy and neutron reflectometry. Functional resorcinarene capsules inside SSPMs can serve as dynamic sensors and potentially as cross-membrane transporters, thus holding great promise for the development of smart surfaces.
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Affiliation(s)
- Moritz S Muthwill
- Biointerfacing Nanomaterials Group, Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
- NCCR Molecular Systems Engineering, Mattenstrasse 22, BPR 1095, 4058 Basel, Switzerland
| | - Maryame Bina
- Biointerfacing Nanomaterials Group, Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
| | - Nicolò Paracini
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - John Peter Coats
- Biointerfacing Nanomaterials Group, Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
| | - Severin Merget
- NCCR Molecular Systems Engineering, Mattenstrasse 22, BPR 1095, 4058 Basel, Switzerland
- Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
| | - Saziye Yorulmaz Avsar
- Biointerfacing Nanomaterials Group, Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
| | - Daniel Messmer
- Biointerfacing Nanomaterials Group, Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
| | - Konrad Tiefenbacher
- NCCR Molecular Systems Engineering, Mattenstrasse 22, BPR 1095, 4058 Basel, Switzerland
- Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
| | - Cornelia G Palivan
- Biointerfacing Nanomaterials Group, Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, 4058 Basel, Switzerland
- NCCR Molecular Systems Engineering, Mattenstrasse 22, BPR 1095, 4058 Basel, Switzerland
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Synthesis, characterization, and computational study of aggregates from amphiphilic calix[6]arenes. Effect of encapsulation on degradation kinetics of curcumin. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Róg T, Girych M, Bunker A. Mechanistic Understanding from Molecular Dynamics in Pharmaceutical Research 2: Lipid Membrane in Drug Design. Pharmaceuticals (Basel) 2021; 14:1062. [PMID: 34681286 PMCID: PMC8537670 DOI: 10.3390/ph14101062] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 11/17/2022] Open
Abstract
We review the use of molecular dynamics (MD) simulation as a drug design tool in the context of the role that the lipid membrane can play in drug action, i.e., the interaction between candidate drug molecules and lipid membranes. In the standard "lock and key" paradigm, only the interaction between the drug and a specific active site of a specific protein is considered; the environment in which the drug acts is, from a biophysical perspective, far more complex than this. The possible mechanisms though which a drug can be designed to tinker with physiological processes are significantly broader than merely fitting to a single active site of a single protein. In this paper, we focus on the role of the lipid membrane, arguably the most important element outside the proteins themselves, as a case study. We discuss work that has been carried out, using MD simulation, concerning the transfection of drugs through membranes that act as biological barriers in the path of the drugs, the behavior of drug molecules within membranes, how their collective behavior can affect the structure and properties of the membrane and, finally, the role lipid membranes, to which the vast majority of drug target proteins are associated, can play in mediating the interaction between drug and target protein. This review paper is the second in a two-part series covering MD simulation as a tool in pharmaceutical research; both are designed as pedagogical review papers aimed at both pharmaceutical scientists interested in exploring how the tool of MD simulation can be applied to their research and computational scientists interested in exploring the possibility of a pharmaceutical context for their research.
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Affiliation(s)
- Tomasz Róg
- Department of Physics, University of Helsinki, 00014 Helsinki, Finland;
| | - Mykhailo Girych
- Department of Physics, University of Helsinki, 00014 Helsinki, Finland;
| | - Alex Bunker
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland;
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