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Lu R, Zhao B, Yang L, Zheng S, Zan X, Li N. Role of Driving Force on Engineering Layer-by-Layer Protein/Polyphenol Coating with Flexible Structures and Properties. ACS APPLIED MATERIALS & INTERFACES 2023; 15:20551-20562. [PMID: 37052959 DOI: 10.1021/acsami.3c02047] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Protein-based coatings are of immense interest due to their rich biological functions. Layer-by-layer (LbL) assembly, as a powerful means of transferring protein functions to the material surface, has received widespread attention. However, the assembly mechanism of protein-based LbL coatings is still far from being explained, not only because of protein structure and function diversity but also characterization limitations. Herein, we monitored in situ the LbL assembly process of tannic acid (TA) and lysozyme (Lyz), a classic pair of polyphenol and protein, by combining quartz crystal microbalance with dissipation monitoring (QCM-D) and spectroscopic ellipsometry (SE). The water content, morphology, mechanical properties, antioxidant activity, and the driving force of TA-Lyz coating engineered under different pH values were analyzed in detail by various techniques. The water content, a key factor in TA-Lyz coatings, increased with increasing assembled pH values, which resulted in a porous morphology, inhomogeneous mechanical distribution, faster assembly growth, and better antioxidant activity in both acellular and cellular levels. In addition, high water content is unfavorable to both entropy and enthalpy changes, and the thermodynamic driving force of TA and Lyz assembly mainly comes from the enthalpy change brought by the noncovalent interaction between TA and Lyz. These results provide new insights into engineering the structure, function, and assembly mechanisms of protein-based coatings.
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Affiliation(s)
- Ruofei Lu
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China
- Wenzhou Key Laboratory of Perioperative Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
- South China Normal University, South China Academy of Advanced Optoelectronics, Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, Guangzhou 510006, China
| | - Bingyang Zhao
- School and Hospital of Stomatology, Wenzhou Medical University Wenzhou, Wenzhou 325035, China
| | - Li Yang
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Shengwu Zheng
- Wenzhou Celecare Medical Instruments Co., Ltd, Wenzhou 325000, China
| | - Xingjie Zan
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China
- Wenzhou Key Laboratory of Perioperative Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Na Li
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China
- Wenzhou Key Laboratory of Perioperative Medicine, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
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Unraveling the role of entropy in tuning unimolecular vs. bimolecular reaction rates: The case of olefin polymerization catalyzed by transition metals. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ghobadi E, Heuchel M, Kratz K, Lendlein A. Influence of the addition of water to amorphous switching domains on the simulated shape-memory properties of poly(l-lactide). POLYMER 2013. [DOI: 10.1016/j.polymer.2013.05.064] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Simulation of Volumetric Swelling of Degradable Poly[(Rac-Lactide)-Co-Glycolide] Based Polyesterurethanes Containing Different Urethane-Linkers. J Appl Biomater Funct Mater 2012; 10:293-301. [DOI: 10.5301/jabfm.2012.10432] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2012] [Indexed: 11/20/2022] Open
Abstract
Aim The hydrolytic degradation behavior of degradable aliphatic polyester-based polymers is strongly influenced by the uptake or transport of water into the polymer matrix and also the hydrolysis rate of ester bonds. Methods We examined the volumetric swelling behavior of poly[(rac-lactide)-co-glycolide] (PLGA) and PLGA-based poly-urethanes (PLGA-PU) with water contents of 0 wt%, 2 wt% and 7 wt% water at 310 K using a molecular modeling approach. Polymer systems with a number average molecular weight of Mn = 10,126 g·mol−1 were constructed from PLGA with a lactide content of 67 mol%, whereby PLGA-PU systems were composed of five PLGA segments with Mn = 2052 g·mol−1, which were connected via urethane linkers originated from 2,2,4-trimethyl hexamethylene-1,6-diisocyanate (TMDI), hexamethyl-1,6-diisocyanate (HDI), or L-lysine-1,6-diisocyanate (LDI). Results The calculated densities of the dry PLGA-PU systems were found to be lower than for pure PLGA. The obtained volumetric swelling of the PLGA-PU was depending on the type of urethane linker, whereby all swollen PLGA-PUs contained larger free volume distribution compared to pure PLGA. The mean square displacement curves for dry PLGA and PLGA-PUs showed that urethane linker units reduce the mobility of the polymer chains, while an increase in backbone atoms mobility was found, when water was added to these systems. Consequently, an increased water uptake of PLGA-PU matrices combined with a higher mobility of the chain segments should result in an accelerated hydrolytic chain scission rate in comparison to PLGA. Conclusions It can be anticipated that the incorporation of urethane linkers might be a helpful tool to adjust the degradation behavior of polyesters.
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Kinoshita M. Importance of translational entropy of water in biological self-assembly processes like protein folding. Int J Mol Sci 2009; 10:1064-1080. [PMID: 19399238 PMCID: PMC2672019 DOI: 10.3390/ijms10031064] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Revised: 03/06/2009] [Accepted: 03/10/2009] [Indexed: 11/19/2022] Open
Abstract
We briefly review our studies on the folding/unfolding mechanisms of proteins. In biological self-assembly processes such as protein folding, the number of accessible translational configurations of water in the system increases greatly, leading to a large gain in the water entropy. The usual view looking at only the water in the close vicinity of the protein surface is capable of elucidating neither the large entropic gain upon apoplastocyanin folding, which has recently been found in a novel experimental study, nor the pressure and cold denaturation. With the emphasis on the translational entropy of water, we are presently constructing a reliable method for predicting the native structure of a protein from its amino-acid sequence.
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Affiliation(s)
- Masahiro Kinoshita
- Institute of Advanced Energy, Kyoto University / Uji, Kyoto 611-0011, Japan
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van der Vegt NFA, van Gunsteren WF. Entropic Contributions in Cosolvent Binding to Hydrophobic Solutes in Water. J Phys Chem B 2003. [DOI: 10.1021/jp030532c] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- N. F. A. van der Vegt
- Laboratory of Physical Chemistry, Swiss Federal Institute of Technology Zürich, ETH-Hönggerberg, CH-8093 Zürich, Switzerland
| | - W. F. van Gunsteren
- Laboratory of Physical Chemistry, Swiss Federal Institute of Technology Zürich, ETH-Hönggerberg, CH-8093 Zürich, Switzerland
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