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Chabaud B, Bonnet H, Lartia R, Van Der Heyden A, Auzély-Velty R, Boturyn D, Coche-Guérente L, Dubacheva GV. Influence of Surface Chemistry on Host/Guest Interactions: A Model Study on Redox-Sensitive β-Cyclodextrin/Ferrocene Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:4646-4660. [PMID: 38387876 DOI: 10.1021/acs.langmuir.3c03279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
While host/guest interactions are widely used to control molecular assembly on surfaces, quantitative information on the effect of surface chemistry on their efficiency is lacking. To address this question, we combined electrochemical characterization with quartz crystal microbalance with dissipation monitoring to study host/guest interactions between surface-attached ferrocene (Fc) guests and soluble β-cyclodextrin (β-CD) hosts. We identified several parameters that influence the redox response, β-CD complexation ability, and repellent properties of Fc monolayers, including the method of Fc grafting, the linker connecting Fc with the surface, and the diluting molecule used to tune Fc surface density. The study on monovalent β-CD/Fc complexation was completed by the characterization of multivalent interactions between Fc monolayers and β-CD-functionalized polymers, with new insights being obtained on the interplay between the surface chemistry, binding efficiency, and reversibility under electrochemical stimulus. These results should facilitate the design of well-defined functional interfaces and their implementation in stimuli-responsive materials and sensing devices.
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Affiliation(s)
- Baptiste Chabaud
- Département de Chimie Moléculaire, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, 38000 Grenoble, France
| | - Hugues Bonnet
- Département de Chimie Moléculaire, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, 38000 Grenoble, France
| | - Rémy Lartia
- Département de Chimie Moléculaire, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, 38000 Grenoble, France
| | - Angéline Van Der Heyden
- Département de Chimie Moléculaire, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, 38000 Grenoble, France
| | | | - Didier Boturyn
- Département de Chimie Moléculaire, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, 38000 Grenoble, France
| | - Liliane Coche-Guérente
- Département de Chimie Moléculaire, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, 38000 Grenoble, France
| | - Galina V Dubacheva
- Département de Chimie Moléculaire, Université Grenoble Alpes, CNRS UMR 5250, 570 rue de la chimie, CS 40700, 38000 Grenoble, France
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Picault L, Laigre E, Gillon E, Tiertant C, Renaudet O, Imberty A, Goyard D, Dejeu J. Characterization of the interaction of multivalent glycosylated ligands with bacterial lectins by BioLayer interferometry. Glycobiology 2022; 32:886-896. [DOI: 10.1093/glycob/cwac047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/06/2022] [Accepted: 07/10/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
The study of multivalent carbohydrate–protein interactions remains highly complicated and sometimes rendered impossible due to aggregation problems. Bio-Layer Interferometry (BLI) is emerging as a tool to monitor such complex interactions. In this study, various glycoclusters and dendrimers were prepared and evaluated as ligands for lectins produced by pathogenic bacteria Pseudomonas aeruginosa (LecA and Lec B) and Burkholderia ambifaria (BambL). Reliable kinetic and thermodynamic parameters could be measured, and immobilization of either lectin or ligands resulted in high quality data. The methods gave results in full agreement with previous ITC experiments, and presented strong advantages since they require less quantity and purity for the biomolecules.
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Affiliation(s)
- L Picault
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - E Laigre
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - E Gillon
- Université Grenoble Alpes , CNRS, CERMAV, UPR5301, 601 Rue de la Chimie, 38000 Grenoble , France
| | - C Tiertant
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - O Renaudet
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - A Imberty
- Université Grenoble Alpes , CNRS, CERMAV, UPR5301, 601 Rue de la Chimie, 38000 Grenoble , France
| | - D Goyard
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - J Dejeu
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
- FEMTO-ST Institute , CNRS UMR-6174, Université de Bourgogne Franche-Comté, F-25000 Besançon , France
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