1
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Jiang X, Liu R, Xie Y. Hydrogen bonding dominated self-assembly mechanism of amphiphilic molecules in Chinese Baijiu. Food Chem 2024; 452:139420. [PMID: 38705118 DOI: 10.1016/j.foodchem.2024.139420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/28/2024] [Accepted: 04/18/2024] [Indexed: 05/07/2024]
Abstract
Molecular mechanisms underlying the aging of Chinese Baijiu remained elusive. This study proposed the self-assembly behavior of amphiphilic molecules dominated by hydrogen bonds in Chinese Baijiu for the first time. The self-assembly degree of amphiphilic clusters gradually intensifies with the prolonged storage time of Baijiu, comprehensively characterized at both micro and macro levels. The results indicated that the blue-shift of the Raman hydrogen bond vibrational peak (about 11 cm-1 and 7 cm-1, respectively), the increase in viscosity (5.71% and 2.22%, respectively), and the rise in dielectric constant (95.63% and 94.99%, respectively) during the 17-year cellaring process of Strong-flavor Baijiu and Jiang-flavor Baijiu were consistent with the evolutionary trends observed in molecular dynamics simulations. The essential driving factors of cluster structure alteration of amphiphilic aroma substances in Chinese Baijiu during cellaring were demonstrated from molecular level. This study provided a research approach to comprehending the aging mechanism of Chinese Baijiu from the micro level.
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Affiliation(s)
- Xinyue Jiang
- School of Bioengineering and Food Science, Hubei University of Technology, 28, Nanli Road, Hong-shan District, Wuhan 430068, China; State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China.
| | - Ruicong Liu
- School of Bioengineering and Food Science, Hubei University of Technology, 28, Nanli Road, Hong-shan District, Wuhan 430068, China.
| | - Yuqun Xie
- School of Bioengineering and Food Science, Hubei University of Technology, 28, Nanli Road, Hong-shan District, Wuhan 430068, China.
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2
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Wang F, Feng W, Zhu Z, Zhang J, Wei H, Dang L. Coacervating behavior of amino acid anionic and amphoteric mixed micelle-polymer. SOFT MATTER 2024. [PMID: 38980096 DOI: 10.1039/d4sm00267a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
In this paper, coacervates were formed with mixed micelles consisting of the anionic amino acid surfactant sodium lauroylsarcosinate (NLS) and amphoteric surfactant cocamidopropyl betaine (CAPB) in combination with cationic guar gum. Based on personal care formulation studies, coacervates were prepared by diluting a concentrated system with water to better suit the product application process. The phase behavior during dilution was revealed by turbidity, which was influenced by the mixed micelle ratio (X), salt concentration, and dilution ratio (R). Optical microscopy, cryo-SEM, SAXS and rotational rheometry were used to characterize the structure and properties of the coacervates, which strongly depended on the interaction strength between the polymer and micelles. Dominated by electrostatic interactions, the coacervates exhibited a dense porous structure with low water content and a high viscoelastic modulus, while weakened interactions resulted in a looser mesh internal structure with lower viscoelasticity, enhancing skin adsorption. These findings enhance our understanding of polymer-mixed micelle systems and offer practical strategies for controlling the properties of coacervates.
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Affiliation(s)
- Feihong Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.
| | - Wenhui Feng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.
| | - Zhendong Zhu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.
| | - Jiahao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.
| | - Hongyuan Wei
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.
| | - Leping Dang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.
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3
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Lin Z, Beneyton T, Baret JC, Martin N. Coacervate Droplets for Synthetic Cells. SMALL METHODS 2023; 7:e2300496. [PMID: 37462244 DOI: 10.1002/smtd.202300496] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/15/2023] [Indexed: 12/24/2023]
Abstract
The design and construction of synthetic cells - human-made microcompartments that mimic features of living cells - have experienced a real boom in the past decade. While many efforts have been geared toward assembling membrane-bounded compartments, coacervate droplets produced by liquid-liquid phase separation have emerged as an alternative membrane-free compartmentalization paradigm. Here, the dual role of coacervate droplets in synthetic cell research is discussed: encapsulated within membrane-enclosed compartments, coacervates act as surrogates of membraneless organelles ubiquitously found in living cells; alternatively, they can be viewed as crowded cytosol-like chassis for constructing integrated synthetic cells. After introducing key concepts of coacervation and illustrating the chemical diversity of coacervate systems, their physicochemical properties and resulting bioinspired functions are emphasized. Moving from suspensions of free floating coacervates, the two nascent roles of these droplets in synthetic cell research are highlighted: organelle-like modules and cytosol-like templates. Building the discussion on recent studies from the literature, the potential of coacervate droplets to assemble integrated synthetic cells capable of multiple life-inspired functions is showcased. Future challenges that are still to be tackled in the field are finally discussed.
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Affiliation(s)
- Zi Lin
- Université de Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR5031, 115 avenue du Dr. Schweitzer, 33600, Pessac, France
| | - Thomas Beneyton
- Université de Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR5031, 115 avenue du Dr. Schweitzer, 33600, Pessac, France
| | - Jean-Christophe Baret
- Université de Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR5031, 115 avenue du Dr. Schweitzer, 33600, Pessac, France
| | - Nicolas Martin
- Université de Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR5031, 115 avenue du Dr. Schweitzer, 33600, Pessac, France
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4
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Zheng C, Chen M, Chen Y, Qu Y, Shi W, Shi L, Qiao Y, Li X, Guo X, Wang L, Wu W. Preparation of polysaccharide-based nanoparticles by chitosan and flaxseed gum polyelectrolyte complexation as carriers for bighead carp (Aristichthys nobilis) peptide delivery. Int J Biol Macromol 2023; 249:126121. [PMID: 37541467 DOI: 10.1016/j.ijbiomac.2023.126121] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 07/07/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
Polysaccharide-based nanoparticles formed by the polyelectrolyte complexation between chitosan (CS) and flaxseed gum (FG) was developed in this work, and it was further used as a carrier for bighead carp peptide (BCP) delivery. The CS molecular weight (MW) of 50 kDa and CS/FG mass ratio of 1:2 at pH 3.5 were optimal conditions for the NP preparation, with the minimum particle size (∼155.1 nm) and the maximum BCP encapsulation efficiency (60.3 %). The BCP-loaded CS/FG NPs exhibited the smallest particle size (175.8 nm). Both CS/FG NPs and CS/FG-BCP NPs exhibited roughly uniform spherical shape. FT-IR spectra confirmed the existence of hydrogen bonds and electrostatic interactions in the nanoparticles. The BCP-loaded NPs displayed a higher thermal stability than BCP. Moreover, the release of BCP was controllable and dose-dependent, following a first-order kinetics model. These findings suggested that our CS/FG NPs are a promising carrier for bioactive peptide delivery.
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Affiliation(s)
- Changliang Zheng
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; College of Food Sciences and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Mengting Chen
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Yashu Chen
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Yinghong Qu
- College of Food Sciences and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Wenzheng Shi
- College of Food Sciences and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Liu Shi
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Yu Qiao
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Xin Li
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Xiaojia Guo
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Lan Wang
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.
| | - Wenjin Wu
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.
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5
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Yu B, Liang H, Nealey PF, Tirrell MV, Rumyantsev AM, de Pablo JJ. Structure and Dynamics of Hybrid Colloid-Polyelectrolyte Coacervates: Insights from Molecular Simulations. Macromolecules 2023; 56:7256-7270. [PMID: 37781214 PMCID: PMC10538443 DOI: 10.1021/acs.macromol.3c01079] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/08/2023] [Indexed: 10/03/2023]
Abstract
Electrostatic interactions in polymeric systems are responsible for a wide range of liquid-liquid phase transitions that are of importance for biology and materials science. Such transitions are referred to as complex coacervation, and recent studies have sought to understand the underlying physics and chemistry. Most theoretical and simulation efforts to date have focused on oppositely charged linear polyelectrolytes, which adopt nearly ideal-coil conformations in the condensed phase. However, when one of the coacervate components is a globular protein, a better model of complexation should replace one of the species with a spherical charged particle or colloid. In this work, we perform coarse-grained simulations of colloid-polyelectrolyte coacervation using a spherical model for the colloid. Simulation results indicate that the electroneutral cell of the resulting (hybrid) coacervates consists of a polyelectrolyte layer adsorbed on the colloid. Power laws for the structure and the density of the condensed phase, which are extracted from simulations, are found to be consistent with the adsorption-based scaling theory of hybrid coacervation. The coacervates remain amorphous (disordered) at a moderate colloid charge, Q, while an intra-coacervate colloidal crystal is formed above a certain threshold, at Q > Q*. In the disordered coacervate, if Q is sufficiently low, colloids diffuse as neutral nonsticky nanoparticles in the semidilute polymer solution. For higher Q, adsorption is strong and colloids become effectively sticky. Our findings are relevant for the coacervation of polyelectrolytes with proteins, spherical micelles of ionic surfactants, and solid organic or inorganic nanoparticles.
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Affiliation(s)
- Boyuan Yu
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
| | - Heyi Liang
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
| | - Paul F. Nealey
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
| | - Matthew V. Tirrell
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
- Center
for Molecular Engineering, Argonne National
Laboratory, Lemont, Illinois 60439, United States
| | - Artem M. Rumyantsev
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
- Department
of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Juan J. de Pablo
- Pritzker
School of Molecular Engineering, University
of Chicago, Chicago, Illinois 60637, United States
- Center
for Molecular Engineering, Argonne National
Laboratory, Lemont, Illinois 60439, United States
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6
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Muthukumar M. Fluctuations, structure, and size inside coacervates. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2023; 46:79. [PMID: 37682368 DOI: 10.1140/epje/s10189-023-00335-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023]
Abstract
Aqueous solutions of oppositely charged macromolecules exhibit the ubiquitous phenomenon of coacervation. This subject is of considerable current interest due to numerous biotechnological applications of coacervates and the general premise of biomolecular condensates. Towards a theoretical foundation of structural features of coacervates, we present a field-theoretic treatment of coacervates formed by uniformly charged flexible polycations and polyanions in an electrolyte solution. We delineate different regimes of polymer concentration fluctuations and structural features of coacervates based on the concentrations of polycation and polyanion, salt concentration, and experimentally observable length scales. We present closed-form formulas for correlation length of polymer concentration fluctuations, scattering structure factor, and radius of gyration of a labelled polyelectrolyte chain inside a concentrated coacervate. Using random phase approximation suitable for concentrated polymer systems, we show that the inter-monomer electrostatic interaction is screened by interpenetration of all charged polymer chains and that the screening length depends on the individual concentrations of the polycation and the polyanion, as well as the salt concentration. Our calculations show that the scattering intensity decreases monotonically with scattering wave vector at higher salt concentrations, while it exhibits a peak at intermediate scattering wave vector at lower salt concentrations. Furthermore, we predict that the dependence of the radius of gyration of a labelled chain on its degree of polymerization generally obeys the Gaussian chain statistics. However, the chain is modestly swollen, the extent of which depending on polyelectrolyte composition, salt concentration, and the electrostatic features of the polycation and polyanion such as the degree of ionization.
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Affiliation(s)
- Murugappan Muthukumar
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA, 01003, USA.
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7
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Nguyen M, Shen K, Sherck N, Köhler S, Gupta R, Delaney KT, Shell MS, Fredrickson GH. A molecularly informed field-theoretic study of the complexation of polycation PDADMA with mixed micelles of sodium dodecyl sulfate and ethoxylated surfactants. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2023; 46:75. [PMID: 37665423 DOI: 10.1140/epje/s10189-023-00332-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/11/2023] [Indexed: 09/05/2023]
Abstract
The self-assembly and phase separation of mixtures of polyelectrolytes and surfactants are important to a range of applications, from formulating personal care products to drug encapsulation. In contrast to systems of oppositely charged polyelectrolytes, in polyelectrolyte-surfactant systems the surfactants micellize into structures that are highly responsive to solution conditions. In this work, we examine how the morphology of micelles and degree of polyelectrolyte adsorption dynamically change upon varying the mixing ratio of charged and neutral surfactants. Specifically, we consider a solution of the cationic polyelectrolyte polydiallyldimethylammonium, anionic surfactant sodium dodecyl sulfate, neutral ethoxylated surfactants (C[Formula: see text]EO[Formula: see text]), sodium chloride salt, and water. To capture the chemical specificity of these species, we leverage recent developments in constructing molecularly informed field theories via coarse-graining from all-atom simulations. Our results show how changing the surfactant mixing ratios and the identity of the nonionic surfactant modulates micelle size and surface charge, and as a result dictates the degree of polyelectrolyte adsorption. These results are in semi-quantitative agreement with experimental observations on the same system.
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Affiliation(s)
- My Nguyen
- Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106, USA
| | - Kevin Shen
- Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106, USA
- Materials Research Laboratory, University of California, Santa Barbara, CA, 93106, USA
| | | | | | - Rohini Gupta
- California Research Alliance (CARA) by BASF, Berkeley, CA, 94720, USA
| | - Kris T Delaney
- Materials Research Laboratory, University of California, Santa Barbara, CA, 93106, USA
| | - M Scott Shell
- Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106, USA.
| | - Glenn H Fredrickson
- Department of Chemical Engineering, University of California, Santa Barbara, CA, 93106, USA.
- Materials Research Laboratory, University of California, Santa Barbara, CA, 93106, USA.
- Department of Materials, University of California, Santa Barbara, CA, 93106, USA.
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8
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Visan RM, Leonties AR, Anastasescu M, Angelescu DG. Towards understanding the interaction of quercetin with chitosan-phytate complex: An experimental and computational investigation. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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9
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Fan Y, Wang Y. Deposition and Spread of Aqueous Pesticide Droplets on Hydrophobic/Superhydrophobic Surfaces by Fast Aggregation of Surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5631-5640. [PMID: 37053578 DOI: 10.1021/acs.langmuir.3c00282] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Deposition and spread of aqueous droplets on hydrophobic/superhydrophobic surfaces are of great significance in many practical applications, such as spraying, coating, and printing, and particularly in improving pesticide utilization efficiency because the intrinsic hydrophobicity/superhydrophobicity of most plant leaves results in serious loss of water-based pesticides during spraying. It has been found that proper surfactants can promote the droplet spread on such surfaces. However, most reports involved the effects of surfactants on the spread of the gently released droplets over hydrophobic or highly hydrophobic substrates, while the situation on superhydrophobic substrates has rarely been explored. Moreover, high-speed impact makes it extremely difficult to deposit and spread the aqueous droplets on superhydrophobic surfaces; thus, the deposition and spread have just been achieved by surfactants in recent years. Here, we give an overview concerning the influence factors on the deposition and spreading performance of gently released and high-speed impacted droplets on hydrophobic/superhydrophobic substrates and emphasize the effects of fast aggregation of surfactants at the interface and in solution. We also outline perspectives on the future development of surfactant-assisted deposition and spreading after high-speed impact.
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Affiliation(s)
- Yaxun Fan
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yilin Wang
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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10
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Goulding DA, Bovetto L, O'Regan J, O'Brien NM, O'Mahony JA. Heteroprotein complex coacervation of lactoferrin and osteopontin: Phase behaviour and thermodynamics of formation. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Xue B, Lai Y, Liu Y, Li M, Li X, Yin P. The Counterion-Mediated Controllable Coacervation of Nano-Ions with Polyelectrolytes. J Colloid Interface Sci 2023; 641:853-860. [PMID: 36966574 DOI: 10.1016/j.jcis.2023.03.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/14/2023] [Accepted: 03/17/2023] [Indexed: 03/22/2023]
Abstract
Nano-ions can complex with polyelectrolytes for coacervates with hierarchical structures; however, the rational design of functional coacervations is still rare due to the poor understanding of their structure-property relationship from their complex interaction. Herein, 1 nm anionic metal oxide clusters, PW12O403-, with well-defined, mono-disperse structures are applied to complex with cationic polyelectrolyte and the system shows tunable coacervation via the alternation of counterions (H+ and Na+) of PW12O403-. Suggested from Fourier transform infrared spectroscopy (FT-IR) and isothermal titration studies, the interaction between PW12O403- and cationic polyelectrolytes can be modulated by the bridging effect of counterions via hydrogen bonding or ion-dipole interaction to carbonyl groups of polyelectrolytes. The condensed structures of the complexed coacervates are explored by small angle X-ray and neutron scattering techniques, respectively. The coacervate with H+ as counterions shows both crystallized and discrete PW12O403- clusters, with a loose polymer-cluster network in comparison to the system of Na+ which shows a dense packing structure with aggregated nano-ions filling the meshes of polyelectrolyte networks. The bridging effect of counterions helps understand the super-chaotropic effect observed in nano-ion system and provides avenues for the design of metal oxide cluster-based functional coacervates.
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12
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Wu CA, Zhu Y, Venkatesh A, Stark CJ, Lee SH, Woo YJ. Optimization of Freeform Reversible Embedding of Suspended Hydrogel Microspheres for Substantially Improved Three-Dimensional Bioprinting Capabilities. Tissue Eng Part C Methods 2023; 29:85-94. [PMID: 36719778 PMCID: PMC10024587 DOI: 10.1089/ten.tec.2022.0214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/23/2023] [Indexed: 02/01/2023] Open
Abstract
Three-dimensional (3D) bioprinting demonstrates technology that is capable of producing structures comparable to native tissues in the human body. The freeform reversible embedding of suspended hydrogels (FRESH) technique involves hydrogel-based bio-inks printed within a thermo-reversible support bath to provide mechanical strength to the printed construct. Smaller and more uniform microsphere sizes of FRESH were reported to aid in enhancing printing resolution and construct accuracy. Therefore, we sought to optimize the FRESH generation protocol, particularly by varying stir speed and stir duration, in hopes to further improve microsphere size and uniformity. We observed optimal conditions at a stir speed of 600 rpm and stir duration for 20 h that generated the smallest microspheres with the best uniformity. Comparison of using the optimized FRESH to the commercial FRESH LifeSupport to bioprint single filament and geometrical constructs revealed reduced single filament diameters and higher angular precision in the optimized FRESH bio-printed constructs compared with those printed in the commercial FRESH. Overall, our refinement of the FRESH manufacturing protocol represents an important step toward enhancing 3D bioprinting resolution and construct fidelity. Improving such technologies allows for the fabrication of highly accurate constructs with anatomical properties similar to native counterparts. Such work has significant implications in the field of tissue engineering for producing accurate human organ model systems. Impact statement Freeform reversible embedding of suspended hydrogels (FRESH) is a method of sacrificial three-dimensional (3D) bioprinting that offers support to reinforce bio-ink extrusion during printing. During FRESH generation, the stir speed and stir duration of the mixture can significantly impact FRESH microsphere characteristics. In this study, we optimized FRESH microspheres to significantly improve resolution and accuracy in bioprinting. This advancement in FRESH-based 3D bioprinting technologies allows for the fabrication of highly accurate constructs with anatomical properties similar to native counterparts and has significant implications in the field of tissue engineering and translational medicine.
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Affiliation(s)
- Catherine A. Wu
- Department of Cardiothoracic Surgery and Stanford University, Stanford, California, USA
| | - Yuanjia Zhu
- Department of Cardiothoracic Surgery and Stanford University, Stanford, California, USA
- Department of Bioengineering, Stanford University, Stanford, California, USA
| | - Akshay Venkatesh
- Department of Cardiothoracic Surgery and Stanford University, Stanford, California, USA
| | - Charles J. Stark
- Department of Cardiothoracic Surgery and Stanford University, Stanford, California, USA
| | - Seung Hyun Lee
- Department of Cardiothoracic Surgery and Stanford University, Stanford, California, USA
| | - Y. Joseph Woo
- Department of Cardiothoracic Surgery and Stanford University, Stanford, California, USA
- Department of Bioengineering, Stanford University, Stanford, California, USA
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13
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Rumyantsev AM, Borisov OV, de Pablo JJ. Structure and Dynamics of Hybrid Colloid-Polyelectrolyte Coacervates. Macromolecules 2023; 56:1713-1730. [PMID: 36874532 PMCID: PMC9979655 DOI: 10.1021/acs.macromol.2c02464] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/28/2023] [Indexed: 02/16/2023]
Abstract
We develop a scaling theory for the structure and dynamics of "hybrid" complex coacervates formed from linear polyelectrolytes (PEs) and oppositely charged spherical colloids, such as globular proteins, solid nanoparticles, or spherical micelles of ionic surfactants. At low concentrations, in stoichiometric solutions, PEs adsorb at the colloids to form electrically neutral finite-size complexes. These clusters attract each other through bridging between the adsorbed PE layers. Above a threshold concentration, macroscopic phase separation sets in. The coacervate internal structure is defined by (i) the adsorption strength and (ii) the ratio of the resulting shell thickness to the colloid radius, H/R. A scaling diagram of different coacervate regimes is constructed in terms of the colloid charge and its radius for Θ and athermal solvents. For high charges of the colloids, the shell is thick, H ≫ R, and most of the volume of the coacervate is occupied by PEs, which determine its osmotic and rheological properties. The average density of hybrid coacervates exceeds that of their PE-PE counterparts and increases with nanoparticle charge, Q. At the same time, their osmotic moduli remain equal, and the surface tension of hybrid coacervates is lower, which is a consequence of the shell's inhomogeneous density decreasing with the distance from the colloid surface. When charge correlations are weak, hybrid coacervates remain liquid and follow Rouse/reptation dynamics with a Q-dependent viscosity, η Rouse ∼ Q 4/5 and η rep ∼ Q 28/15 for a Θ solvent. For an athermal solvent, these exponents are equal to 0.89 and 2.68, respectively. The diffusion coefficients of colloids are predicted to be strongly decreasing functions of their radius and charge. Our results on how Q affects the threshold coacervation concentration and colloidal dynamics in condensed phases are consistent with experimental observations for in vitro and in vivo studies of coacervation between supercationic green fluorescent proteins (GFPs) and RNA.
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Affiliation(s)
- Artem M Rumyantsev
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Oleg V Borisov
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR 5254 CNRS UPPA, Pau 64053, France
| | - Juan J de Pablo
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
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14
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Yu Y, Li SY, Xu TC, Huang GQ, Xiao JX. Assembly of zein/propylene glycol alginate nanoparticles in aqueous ethanol and the binding kinetics. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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Hatem WA, Lapitsky Y. Accelerating Payload Release from Complex Coacervates through Mechanical Stimulation. Polymers (Basel) 2023; 15:polym15030586. [PMID: 36771888 PMCID: PMC9919863 DOI: 10.3390/polym15030586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/17/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
Complex coacervates formed through the association of charged polymers with oppositely charged species are often investigated for controlled release applications and can provide highly sustained (multi-day, -week or -month) release of both small-molecule and macromolecular actives. This release, however, can sometimes be too slow to deliver the active molecules in the doses needed to achieve the desired effect. Here, we explore how the slow release of small molecules from coacervate matrices can be accelerated through mechanical stimulation. Using coacervates formed through the association of poly(allylamine hydrochloride) (PAH) with pentavalent tripolyphosphate (TPP) ions and Rhodamine B dye as the model coacervate and payload, we demonstrate that slow payload release from complex coacervates can be accelerated severalfold through mechanical stimulation (akin to flavor release from a chewed piece of gum). The stimulation leading to this effect can be readily achieved through either perforation (with needles) or compression of the coacervates and, besides accelerating the release, can result in a deswelling of the coacervate phases. The mechanical activation effect evidently reflects the rupture and collapse of solvent-filled pores, which form due to osmotic swelling of the solute-charged coacervate pellets and is most pronounced in release media that favor swelling. This stimulation effect is therefore strong in deionized water (where the swelling is substantial) and only subtle and shorter-lived in phosphate buffered saline (where the PAH/TPP coacervate swelling is inhibited). Taken together, these findings suggest that mechanical activation could be useful in extending the complex coacervate matrix efficacy in highly sustained release applications where the slowly releasing coacervate-based sustained release vehicles undergo significant osmotic swelling.
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16
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Effect of ionic strength and mixing ratio on complex coacervation of soy protein isolate/Flammulina velutipes polysaccharide. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Rheology and Gelation of Hyaluronic Acid/Chitosan Coacervates. Biomolecules 2022; 12:biom12121817. [PMID: 36551245 PMCID: PMC9775361 DOI: 10.3390/biom12121817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Hyaluronic acid (HA) and chitosan (CHI) are biopolyelectrolytes which are interesting for both the medical and polymer physics communities due to their biocompatibility and semi-flexibility, respectively. In this work, we demonstrate by rheology experiments that the linear viscoelasticity of HA/CHI coacervates depends strongly on the molecular weight of the polymers. Moduli for coacervates were found significantly higher than those of individual HA and CHI physical gels. A remarkable 1.5-fold increase in moduli was noted when catechol-conjugated HA and CHI were used instead. This was attributed to the conversion of coacervates to chemical gels by oxidation of 3,4-dihydroxyphenylalanine (DOPA) groups in HA and CHI to di-DOPA crosslinks. These rheological results put HA/CHI coacervates in the category of strong candidates as injectable tissue scaffolds or medical adhesives.
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18
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Functional importance of coacervation to convert calcium polyphosphate nanoparticles into the physiologically active state. Mater Today Bio 2022; 16:100404. [PMID: 36065353 PMCID: PMC9440442 DOI: 10.1016/j.mtbio.2022.100404] [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: 07/05/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 11/30/2022] Open
Abstract
Inorganic polyphosphates (polyP) are of increasing medical interest due to their unprecedented ability to exhibit both morphogenetic and ATP-delivering properties. However, these polymers are only physiologically active in the coacervate state, but not as amorphous nanoparticles (NP), the storage form of the polymer. Little is known about the mechanism of formation and interconversion of these two distinct polyP phases in the presence of metal ions. Based on in silico simulation studies, showing a differential clustering of polyP and calcium ions, the pH-dependent NP and coacervate formation of polyP was examined experimentally. Turbidimetric studies showed that Ca-polyP coacervate formation at pH 7 is a slow process compared to NP formation at pH 10. In FTIR spectra, the asymmetric stretching vibration signal of the internal (PO2)− units, which is present in the Ca-polyP coacervate formed at pH 7, disappears in the NP formed at pH 10 using the conventional method (dropping of a CaCl2 solution into a Na-polyP solution). Surprisingly, when reversing the procedure, adding Na-polyP to CaCl2, a coacervate is obtained at both pH 7 and pH 10, as confirmed by SEM and FTIR analyses. The (PO2)− signal also disappears when Ca-polyP-NP are exposed to peptides, leading to the transformation of the NP into the coacervate phase. From these results, a mechanistic model of pH-dependent coacervate and NP formation is proposed that considers not only electrostatic ion-ion but also ion-dipole interactions. Functional studies revealed a delayed polyP release kinetics for Ca-polyP-NP embedded in a hydrogel due to NP/coacervate conversion. Human A549 epithelial cells grown on the coacervate show increased proliferation and ATP production compared to cells cultured on particulate polyP. Ca-polyP NP taken up by endocytosis undergo intracellular coacervate transformation. Understanding the differential expression of the two polyP phases is of functional importance for the potential therapeutic application of this physiological, regeneratively active polymer. Polyphosphate (polyP) is a polymer that is abundantly formed in blood platelets. This polyanionic polymer exists both in the form of soluble polyP chains and as nanoparticles. PolyP polymers must undergo coacervation before reaching functional activity. Coacervation is based on a redistribution of the Ca2+ and polyP ions, distinct from nanoparticle formation. In the coacervate state, polyP causes cell proliferation and ATP generation.
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19
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Siddiqui SA, Bahmid NA, Taha A, Abdel-Moneim AME, Shehata AM, Tan C, Kharazmi MS, Li Y, Assadpour E, Castro-Muñoz R, Jafari SM. Bioactive-loaded nanodelivery systems for the feed and drugs of livestock; purposes, techniques and applications. Adv Colloid Interface Sci 2022; 308:102772. [PMID: 36087561 DOI: 10.1016/j.cis.2022.102772] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/22/2022] [Accepted: 09/01/2022] [Indexed: 01/06/2023]
Abstract
Advances in animal husbandry and better performance of livestock results in growing demands for feed and its nutrients, bioactive compounds (bioactives), such as vitamins, minerals, proteins, and phenolics, along with drugs/vaccines. To protect the feed bioactives in unintended circumstances, they can be encapsulated to achieve desired efficacy in animal feeding and nanoencapsulation gives more potential for better protection, absorption and targeted delivery of bioactives. This study reviews structures, properties, and methods of nanoencapsulation for animal feedings and relevant drugs. Essential oil (EOs) and plant extracts are mostly encapsulated bioactives and phytochemicals for poultry diets and chitosan is found as most effective nanocarrier to load EOs and plant extracts. Nanoparticles (NPs) and nanocapsules are frequently studied nanocarriers, which are mostly processed by using the ionotropic/ionic gelation. Nanofibers, nanohydrogels and nanoemulsions are not found yet for their application in feed bioactives. These nanocarriers can have an improved protection, stability, and controlled release of feed bioactives which benefits to additional nutrition for the growth of livestock regardless of the low stability and water solubility of bioactives. For ruminants' feeds, nano-minerals, vitamins, phytochemicals, essential fatty acids, and drugs are encapsulated by NPs to facilitate the delivery to target organs through direct penetration, to improve their bioavailability, to generate more efficient absorption in cells and tissues, and protect them from rapid degradation. Furthermore, safety and regulatory issues, as well as advantages and disadvantages of nanoencapsulation application in animal feeds are also discussed. The review shows an accurate design of NPs can largely mask safety issues with straightforward approaches and awareness of safety concerns is fundamental for better designing of nanoencapsulation systems and commercialization. This review gives an insight of understanding and potential of nanoencapsulation in ruminants and poultry feedings to obtain a better bioavailability of the nutrients and bioactives with improved safety and awareness for better designing of nanoencapsulating systems.
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Affiliation(s)
- Shahida Anusha Siddiqui
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Straße 7, 49610 D-Quakenbrück, Germany; Technical University of Munich Campus Straubing for Biotechnology and Sustainability, Essigberg 3, 94315 Straubing, Germany
| | - Nur Alim Bahmid
- Research Center for Food Technology and Processing, National Research and Innovation Agency (BRIN), Gading, Playen, Gunungkidul, 55861 Yogyakarta, Indonesia; Agricultural Product Technology Department, Universitas Sulawesi Barat, Majene 90311, Indonesia
| | - Ahmed Taha
- State Research Institute, Center for Physical Sciences and Technology, Saulėtekio al. 3, Vilnius, Lithuania; Department of Food Science, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria 21531, Egypt
| | | | - Abdelrazeq M Shehata
- Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt; Department of Dairy Science & Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Chen Tan
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | | | - Yuan Li
- Beijing Advanced Center for Food Nutrition and Human Health, Center of Food Colloids and Delivery of Functionally, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Elham Assadpour
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Roberto Castro-Muñoz
- Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, 11/12 Narutowicza St., 80-233, Gdansk, Poland; Tecnologico de Monterrey, Campus Toluca. Av. Eduardo Monroy Cárdenas 2000 San Antonio Buenavista, 50110 Toluca de Lerdo, Mexico
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran; Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E-32004 Ourense, Spain; College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China.
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20
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Yu J, Qi D, Mäkilä E, Lassila L, Papageorgiou AC, Peurla M, Rosenholm JM, Zhao Z, Vallittu P, Jalkanen S, Jia C, Li J. Small-Molecule-based Supramolecular Plastics Mediated by Liquid-Liquid Phase Separation. Angew Chem Int Ed Engl 2022; 61:e202204611. [PMID: 35929612 PMCID: PMC9804437 DOI: 10.1002/anie.202204611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Indexed: 01/05/2023]
Abstract
Plastics are one of the most widely used polymeric materials. However, they are often undegradable and non-recyclable due to the very stable covalent bonds of macromolecules, causing environmental pollution and health problems. Here, we report that liquid-liquid phase separation (LLPS) could drive the formation of robust, stable, and sustainable plastics using small molecules. The LLPS process could sequester and concentrate solutes, strengthen the non-covalent association between molecules and produce a bulk material whose property was highly related to the encapsulated water amounts. It was a robust plastic with a remarkable Young's modulus of 139.5 MPa when the water content was low while became adhesive and could instantly self-heal with more absorbed water. Finally, responsiveness enabled the material to be highly recyclable. This work allowed us to understand the LLPS at the molecular level and demonstrated that LLPS is a promising approach to exploring eco-friendly supramolecular plastics that are potential substitutes for conventional polymers.
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Affiliation(s)
- Jingjing Yu
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Dawei Qi
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Ermei Mäkilä
- Laboratory of Industrial PhysicsDepartment of Physics and AstronomyInstitute of DentistryUniversity of Turku20014TurkuFinland
| | - Lippo Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre, TCBCUniversity of Turku20014TurkuFinland
| | - Anastassios C. Papageorgiou
- Turku Bioscience CentreUniversity of Turku20521TurkuFinland,Turku Bioscience CentreÅbo Akademi University20521TurkuFinland
| | - Markus Peurla
- Institute of Biomedicine and FICAN West Cancer Research LaboratoriesUniversity of Turku20014TurkuFinland
| | - Jessica M. Rosenholm
- Pharmaceutical Sciences LaboratoryFaculty of Science and EngineeringÅbo Akademi UniversityTykistökatu 620520TurkuFinland
| | - Zhao Zhao
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Pekka Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre, TCBCUniversity of Turku20014TurkuFinland,City of Turku Welfare DivisionPuolalankatu 520101TurkuFinland
| | - Sirpa Jalkanen
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland
| | - Chunman Jia
- Hainan Provincial Key Laboratory of Fine ChemSchool of Chemical Engineering and TechnologyHainan University570228HaikouChina,One Health InstituteHainan University570228HaikouChina
| | - Jianwei Li
- MediCity Research LaboratoryUniversity of TurkuTykistökatu 620520TurkuFinland,Hainan Provincial Key Laboratory of Fine ChemSchool of Chemical Engineering and TechnologyHainan University570228HaikouChina,One Health InstituteHainan University570228HaikouChina
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21
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Rheological properties and ultra-high salt resistance of novel hydrophobically associating copolymers for fracturing fluids. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04470-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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22
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Liu J, Zhang T, Liu X, Lam JWY, Tang BZ, Chau Y. Molecular logic operations from complex coacervation with aggregation-induced emission characteristics. MATERIALS HORIZONS 2022; 9:2443-2449. [PMID: 35856292 DOI: 10.1039/d2mh00537a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Leveraging complex coacervation of a polycation and a bivalent anion with aggregation-induced emission characteristics, we accomplish eight basic logic operations with environmental stimuli as inputs, producing Boolean-like fluorescence intensity or turbidity 'outputs' with contrast higher than one order of magnitude. Storage of information of a fluorescent pattern and thermo-sensor applications are also demonstrated.
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Affiliation(s)
- Jianhui Liu
- Department of Chemical and Biological Engineering, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
| | - Tianfu Zhang
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Xiaolin Liu
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Jacky W Y Lam
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Ben Zhong Tang
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
- School of Science and Engineering, Shenzhen Key Laboratory of Functional Aggregate Materials, the Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Ying Chau
- Department of Chemical and Biological Engineering, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
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23
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Liu B, Yang H, Zhu C, Xiao J, Cao H, Simal-Gandara J, Li Y, Fan D, Deng J. A comprehensive review of food gels: formation mechanisms, functions, applications, and challenges. Crit Rev Food Sci Nutr 2022; 64:760-782. [PMID: 35959724 DOI: 10.1080/10408398.2022.2108369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Gels refer to the soft and flexible macromolecular polymeric materials retaining a large amount of water or biofluids in their three-dimensional network structure. Gels have attracted increasing interest in the food discipline, especially proteins and polysaccharides, due to their good biocompatibility, biodegradability, nutritional properties, and edibility. With the advancement of living standards, people's demand for nutritious, safe, reliable, and functionally diverse food and even personalized food has increased. As a result, gels exhibiting unique advantages in food application will be of great significance. However, a comprehensive review of functional hydrogels as food gels is still lacking. Here, we comprehensively review the gel-forming mechanisms of food gels and systematically classify them. Moreover, the potential of hydrogels as functional foods in different types of food areas is summarized, with a special focus on their applications in food packaging, satiating gels, nutrient delivery systems, food coloring adsorption, and food safety monitoring. Additionally, the key scientific issues for future food gel research, with specific reference to future novel food designs, mechanisms between food components and matrices, food gel-human interactions, and food gel safety, are discussed. Finally, the future directions of hydrogels for food science and technology are summarized.
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Affiliation(s)
- Bin Liu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Shaanxi R&D Center of Biomaterials and Fermentation Engineering, Biotech & Biomed Research Institute, School of Chemical Engineering, Northwest University, Xi'an, China
| | - Haixia Yang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Chenhui Zhu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Shaanxi R&D Center of Biomaterials and Fermentation Engineering, Biotech & Biomed Research Institute, School of Chemical Engineering, Northwest University, Xi'an, China
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Hui Cao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Yujin Li
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Shaanxi R&D Center of Biomaterials and Fermentation Engineering, Biotech & Biomed Research Institute, School of Chemical Engineering, Northwest University, Xi'an, China
| | - Jianjun Deng
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
- Shaanxi Key Laboratory of Degradable Biomedical Materials, Shaanxi R&D Center of Biomaterials and Fermentation Engineering, Biotech & Biomed Research Institute, School of Chemical Engineering, Northwest University, Xi'an, China
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24
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Yu J, Qi D, Mäkilä E, Lassila L, Papageorgiou A, Peurla M, Rosenholm J, Zhao Z, Vallittu P, Jalkanen S, Jia C, Li J. Small Molecule‐based Supramolecular Plastics Mediated by Liquid‐Liquid Phase Separation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jingjing Yu
- University of Turku: Turun Yliopisto MediCity FINLAND
| | - Dawei Qi
- University of Turku Faculty of Medicine: Turun yliopisto Laaketieteellinen tiedekunta MediCity Research Laboratory FINLAND
| | - Ermei Mäkilä
- University of Turku Faculty of Mathematics and Natural Sciences: Turun yliopiston luonnontieteiden ja tekniikan tiedekunta Department of Physics and Astronomy FINLAND
| | - Lippo Lassila
- University of Turku: Turun Yliopisto Department of Biomaterials Science and Turku Clinical Biomaterials Centre FINLAND
| | | | - Markus Peurla
- University of Turku: Turun Yliopisto Institute of Biomedicine and FICAN West Cancer Research Laboratories FINLAND
| | - Jessica Rosenholm
- Abo Akademi University: Abo Akademi Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering FINLAND
| | - Zhao Zhao
- University of Turku: Turun Yliopisto MediCity Research Laboratory FINLAND
| | - Pekka Vallittu
- University of Turku: Turun Yliopisto Department of Biomaterials Science and Turku Clinical Biomaterials Centre FINLAND
| | - Sirpa Jalkanen
- University of Turku: Turun Yliopisto MediCity Research Laboratory FINLAND
| | - Chunman Jia
- Hainan University School of Chemical Engineering and Technology FINLAND
| | - Jianwei Li
- Turun Yliopisto MediCity Research Laboratory Tykistökatu 6 A 20520 Turku FINLAND
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25
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Intermolecular Interactions in the Formation of Polysaccharide-Gelatin Complexes: A Spectroscopic Study. Polymers (Basel) 2022; 14:polym14142777. [PMID: 35890554 PMCID: PMC9323904 DOI: 10.3390/polym14142777] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 02/04/2023] Open
Abstract
Gelatin, due to its gelling and stabilizing properties, is one of the widely used biopolymers in biotechnology, medicine, pharmaceuticals, and the food industry. One way to modify the characteristics of gelatin is molecular modification by forming non-covalent polyelectrolyte complexes with polysaccharides based on the self-organization of supramolecular structures. This review summarizes recent advances in the study of various types and the role of intermolecular interactions in the formation of polysaccharide-gelatin complexes, and conformational changes in gelatin, with the main focus on data obtained by spectroscopic methods: UV, FT-IR, and 1H NMR spectroscopy. In the discussion, the main focus is on the complexing polysaccharides of marine origin-sodium alginate, κ-carrageenan, and chitosan. The prospects for creating polysaccharide-gelatin complexes with desired physicochemical properties are outlined.
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26
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Baccile N, Poirier A, Seyrig C, Le Griel P, Perez J, Hermida-Merino D, Pernot P, Roelants SL, Soetaert W. Chameleonic Amphiphile: the Unique Multiple Self-Assembly Properties of a Natural Glycolipid in Excess of Water. J Colloid Interface Sci 2022; 630:404-415. [DOI: 10.1016/j.jcis.2022.07.130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 11/30/2022]
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27
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Rheological characterization of β-lactoglobulin/lactoferrin complex coacervates. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Zeng X, Jiang W, Du Z, Kokini JL. Encapsulation of tannins and tannin-rich plant extracts by complex coacervation to improve their physicochemical properties and biological activities: A review. Crit Rev Food Sci Nutr 2022:1-14. [PMID: 35549567 DOI: 10.1080/10408398.2022.2075313] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
As a major class of dietary polyphenols, tannins are demonstrated to have various health-promoting properties. Although tannins have been widely utilized in food, pharmaceutical and many other industries, the applications of tannins are quite limited due to their poor stability, sensory attributes and bioavailability. Encapsulation helps improve all of these properties. Complex coacervation, one of the most effective encapsulation techniques, is known for its simplicity, low cost, scalability and reproducibility in encapsulation of functional components. In recent years, complex coacervation has been successfully used for encapsulation of tannins and tannin-rich plant extracts. In this article, the research progress in encapsulating tannins and tannin-rich plant extracts by complex coacervation to improve their physicochemical properties and biological activities is critically reviewed for the first time. Encapsulation of tannins and tannin-rich plant extracts can effectively improve their sensory characteristics, stabilities, bioavailability, anti-hypercholesterolemia, anti-diabetic, antioxidant, anticancer and antimicrobial activities. In particular, the enhancement of biological activities of tannins and tannin-rich plant extracts is usually correlated to their improved physicochemical properties imparted by the encapsulation technique. Moreover, we introduce the issues that need to be further resolved in future studies on encapsulation of tannins and tannin-rich plant extracts by complex coacervation.
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Affiliation(s)
- Xiangquan Zeng
- Department of Food Quality and Safety, School of Food and Health, Beijing Technology and Business University, Beijing, PR China.,Department of Food Science, College of Agriculture, Purdue University, West Lafayette, IN, USA
| | - Weibo Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, PR China
| | - Zhenjiao Du
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
| | - Jozef L Kokini
- Department of Food Science, College of Agriculture, Purdue University, West Lafayette, IN, USA
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29
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Holínková P, Mravec F, Venerová T, Chang CH, Pekař M. Hyaluronan interactions with cationic surfactants - Insights from fluorescence resonance energy transfer and anisotropy techniques. Int J Biol Macromol 2022; 211:107-115. [PMID: 35568147 DOI: 10.1016/j.ijbiomac.2022.05.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/26/2022] [Accepted: 05/09/2022] [Indexed: 11/18/2022]
Abstract
Interactions of hyaluronan with micelles formed by cationic surfactants were studied by the time-resolved measurement of fluorescence resonance energy transfer (FRET) using perylene and fluorescein as probes. Two surfactants were studied - Cetyltrimethylammonium bromide (CTAB) and Septonex. In pure micellar solutions, the same values of FRET efficiency were found for both surfactants, but values for the binding of the probe pair were lower for Septonex micelles than in the case of CTAB. This was attributed to steric effects of the carbethoxy group in the Septonex polar head. Upon the addition of hyaluronan, decreased FRET efficiency and increased binding were detected in comparison with pure surfactants. To resolve the structure of the formed aggregates, steady state and time-resolved fluorescence anisotropy was employed as an additional technique. All results indicated that cationic micelles bind to hyaluronan forming a pearl necklace structure with micelles of smaller size compared to pure surfactant. Besides theoretical interest, the studied polyelectrolyte-surfactant system may be interesting for the formulation of drug delivery systems.
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Affiliation(s)
- Petra Holínková
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, Brno 612 00, Czech Republic
| | - Filip Mravec
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, Brno 612 00, Czech Republic.
| | - Tereza Venerová
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, Brno 612 00, Czech Republic
| | - Chien-Hsiang Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Miloslav Pekař
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, Brno 612 00, Czech Republic
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30
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Guo L, Chen J, Fang S, Li YH, Song YC, Meng YC. Effect of protein topology on hierarchical complexation of epsilon-polylysine and protein: A multiscale structural analysis. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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31
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A Performance Evaluation of Three-Phase Induction Electric Motors between 1945 and 2020. ENERGIES 2022. [DOI: 10.3390/en15062002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In the late 19th century, the three-phase induction motor was the central element of productivity increase in the second industrial revolution in Europe and the United States. Currently, it is the main load on electrical systems in global terms, reaching approximately 70% of electrical energy consumption in the industrial sector worldwide. During the 20th century, electric motors underwent intense technological innovations that enabled significant performance gains. Thus, this work analyses the performance changes in squirrel-cage rotor three-phase induction electric motors (SCIMs) with mechanical powers of 3.7 kW, 37 kW, and 150 kW and speed ranges corresponding to two poles and eight poles, connected to a low voltage at a frequency of 60 Hz and tested between 1945 and 2020. The study confirms accumulated performance gains of above 10% in some cases. Insulating materials for electrical conductors have gone through several generations (cotton, silk, and currently, varnish). Improvements to the housing for cooling, the bearings, the quality of active materials, and the design were the elements that enabled the high gains in performance. The first commercial two-pole SCIM with a shaft power of 4.4 kW was marketed in 1891, with a weight/power ratio of 86 kg/kW, and until the 2000s, this value gradually decreased, eventually reaching 4.8 kg/kW. Between 2000 and 2020, this ratio showed a reversed trend based on improvements in the performance of SCIMs. More active materials were used, causing the weight/power ratio to reach 8.6 kg/kW. The MEPS (minimum energy performance standards) of SCIMs had an essential role in the performance gain over the last three decades. Data collection was via tests at the Electrical Machines Laboratory of the Institute of Energy and Environment of the University of São Paulo. The laboratory has a history of tests on electrical equipment dating from 1911.
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Madinya JJ, Sing CE. Hybrid Field Theory and Particle Simulation Model of Polyelectrolyte–Surfactant Coacervation. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jason J. Madinya
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, 600 S. Matthews Ave., Urbana, Illinois 61820, United States
| | - Charles E. Sing
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, 600 S. Matthews Ave., Urbana, Illinois 61820, United States
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Charge-density reduction promotes ribozyme activity in RNA–peptide coacervates via RNA fluidization and magnesium partitioning. Nat Chem 2022; 14:407-416. [PMID: 35165426 PMCID: PMC8979813 DOI: 10.1038/s41557-022-00890-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 01/05/2022] [Indexed: 12/14/2022]
Abstract
It has long been proposed that phase-separated compartments can provide a basis for the formation of cellular precursors in prebiotic environments. However, we know very little about the properties of coacervates formed from simple peptides, their compatibility with ribozymes or their functional significance. Here we assess the conditions under which functional ribozymes form coacervates with simple peptides. We find coacervation to be most robust when transitioning from long homopeptides to shorter, more pre-biologically plausible heteropeptides. We mechanistically show that these RNA–peptide coacervates display peptide-dependent material properties and cofactor concentrations. We find that the interspacing of cationic and neutral amino acids increases RNA mobility, and we use isothermal calorimetry to reveal sequence-dependent Mg2+ partitioning, two critical factors that together enable ribozyme activity. Our results establish how peptides of limited length, homogeneity and charge density facilitate the compartmentalization of active ribozymes into non-gelating, magnesium-rich coacervates, a scenario that could be applicable to cellular precursors with peptide-dependent functional phenotypes. ![]()
Phase-separated compartments have long been proposed as precursors to cellular life. Now, it has been shown that RNA–peptide protocells are more robust when formed using shorter (rather than longer) peptides, and that peptide sequence determines the functional materials properties of these compartments.
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34
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JIANG X, WAN D, ZHENG F, XIE Y. Ionization Equilibrium of Water Molecule Dominated Ethanol-water Binary Solution Self-assemble. ELECTROCHEMISTRY 2022. [DOI: 10.5796/electrochemistry.22-00054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Xinyue JIANG
- School of Civil Engineering Architecture and Environment, Hubei University of Technology
| | - Duanji WAN
- School of Civil Engineering Architecture and Environment, Hubei University of Technology
| | - Fuping ZHENG
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
| | - Yuqun XIE
- School of Bioengineering and Food Science, Hubei University of Technology
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Vuillemin ME, Michaux F, Seiler A, Linder M, Muniglia L, Jasniewski J. Polysaccharides enzymatic modification to control the coacervation or the aggregation behavior: A thermodynamic study. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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36
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Fay JM, Kabanov AV. Interpolyelectrolyte Complexes as an Emerging Technology for Pharmaceutical Delivery of Polypeptides. REVIEWS AND ADVANCES IN CHEMISTRY 2022. [PMCID: PMC9987408 DOI: 10.1134/s2634827622600177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Polyelectrolyte complexes and the derivatives thereof comprise some of the most promising vehicles for the encapsulation and delivery of macromolecular therapeutics. In particular, protein therapeutics, which present a host of special considerations, can often be effectively packaged and delivered using interpolyelectrolyte complexes. While the technologies are still in the developmental phase, there are numerous examples of complexes where control is exerted over spacial and temporal delivery of a model protein cargo or candidate protein therapeutic agent. Here we provide a historical and practical background to promote a deeper understanding of interpolyelectrolyte complexes and the derivative technologies. Additionally, we review the physical principles underlying the association of polyelectrolyte complexes and the application of those principles to novel strategies and technologies driving interpolyelectrolyte complexation. Then, the application of polyelectrolyte complex technology to protein therapeutics is discussed in detail including discussions of several types of protein cargo with a special emphasis on Brain-Derived Neurotrophic Factor. Finally, we focus on the use of stealth polymers in block ionomer complexes, specifically PEG; its benefits, flaws, and possible alternatives. Comprehensive understanding of the field may promote the continued development of derivative technologies for the delivery of particularly intransigent protein therapeutics, much as has been accomplished for small molecule drugs. We also aim to link current advances to the historical developments which inaugurated the field. With consideration to the field, industrial and academic researchers can utilize the discussed technologies and continue to elucidate novel modalities for a myriad of therapeutic and commercial applications.
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Affiliation(s)
- James M. Fay
- Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina, NC 27599-7362 Chapel Hill, USA ,Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina, NC 27599-7260 Chapel Hill, USA
| | - Alexander V. Kabanov
- Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina, NC 27599-7362 Chapel Hill, USA ,Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina, NC 27599-7260 Chapel Hill, USA ,Faculty of Chemistry, Moscow State University, 119992 Moscow, Russia
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Jiang Y, Jiang Z, Wang M, Ma L. Current understandings and clinical translation of nanomedicines for breast cancer therapy. Adv Drug Deliv Rev 2022; 180:114034. [PMID: 34736986 DOI: 10.1016/j.addr.2021.114034] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/20/2021] [Accepted: 10/28/2021] [Indexed: 02/08/2023]
Abstract
Breast cancer is one of the most frequently diagnosed cancers that is threatening women's life. Current clinical treatment regimens for breast cancer often involve neoadjuvant and adjuvant systemic therapies, which somewhat are associated with unfavorable features. Also, the heterogeneous nature of breast cancers requires precision medicine that cannot be fulfilled by a single type of systemically administered drug. Taking advantage of the nanocarriers, nanomedicines emerge as promising therapeutic agents for breast cancer that could resolve the defects of drugs and achieve precise drug delivery to almost all sites of primary and metastatic breast tumors (e.g. tumor vasculature, tumor stroma components, breast cancer cells, and some immune cells). Seven nanomedicines as represented by Doxil® have been approved for breast cancer clinical treatment so far. More nanomedicines including both non-targeting and active targeting nanomedicines are being evaluated in the clinical trials. However, we have to realize that the translation of nanomedicines, particularly the active targeting nanomedicines is not as successful as people have expected. This review provides a comprehensive landscape of the nanomedicines for breast cancer treatment, from laboratory investigations to clinical applications. We also highlight the key advances in the understanding of the biological fate and the targeting strategies of breast cancer nanomedicine and the implications to clinical translation.
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38
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Application of Liposome Encapsulating Lactobacillus curvatus Extract in Cosmetic Emulsion Lotion. MATERIALS 2021; 14:ma14247571. [PMID: 34947163 PMCID: PMC8706523 DOI: 10.3390/ma14247571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 11/17/2022]
Abstract
Probiotic extracts have various positive attributes, such as antioxidant, tyrosinase inhibitory, and antimicrobial activity. Lactobacillus curvatus produces bacteriocin, which activates the lipid membrane structure and has potential as a natural preservative for cosmetic emulsions. In this study, L. curvatus extract was encapsulated in liposomes and formulated as an oil-in-water (O/W) emulsion. Radical scavenging activity, tyrosinase inhibition, and challenge tests were conducted to confirm the liposome activity and the activity of the applied lotion emulsion. The liposome-encapsulated extract had a relatively high absolute ζ-potential (52.53 > 35.43), indicating its stability, and 96% permeability, which indicates its potential as an active agent in lotion emulsions. Characterization of emulsions containing the liposomes also indicated a stable state. The liposome-encapsulated extract exhibited a higher radical scavenging activity than samples without the extract and non-encapsulated samples, and the functionality was preserved in the lotion emulsion. The tyrosinase inhibition activity of the lotion emulsion with the liposome-encapsulated extract was similar to that of the non-treated extract. Candida albicans and Aspergillus niger were also inhibited in the challenge test with the lotion emulsions during storage. Collectively, these findings indicate that the liposome-encapsulated extract and the lotion containing the encapsulated extract have potential applicability as natural preservatives.
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Kim B, Ban E, Kim A. Gelatin-Alginate Coacervates Optimized by DOE to Improve Delivery of bFGF for Wound Healing. Pharmaceutics 2021; 13:2112. [PMID: 34959393 PMCID: PMC8705889 DOI: 10.3390/pharmaceutics13122112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/03/2021] [Accepted: 12/02/2021] [Indexed: 01/10/2023] Open
Abstract
Metabolic disorders in diabetic patients are associated with altered protein and lipid metabolism and defects in granulation tissue formation, resulting in non-healing wounds such as diabetic foot ulcers (DFU). Growth factors have essential roles in tissue re-epithelization and angiogenesis during wound healing. In this study, a complex coacervate was evaluated as an enhanced delivery system for fibroblast growth factor (bFGF) to control its release rate and protect it from proteases. Coacervates composed of gelatin Type A (GA) and sodium alginate (SA) were optimized by the Design of Experiments (DOE), with the polymer ratio and the medium's pH as the independent variables, and turbidity, particle size, polydispersity index, and encapsulation efficiency (EE, %) as the responses. The optimized coacervate protected bFGF from trypsin digestion and showed controlled release compared with bFGF in solution or a physical mixture of GA and SA. It enhanced the viability, migration, and procollagen I C-terminal propeptide synthesis of human dermal fibroblasts in hyperglycemic conditions. In summary, the DOE approach was successfully applied to optimize bFGF GA-SA coacervates as a potential novel therapeutic modality to treat DFU.
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Affiliation(s)
| | | | - Aeri Kim
- Department of Pharmacy, College of Pharmacy, CHA University, Seongnam-si 463-400, Korea; (B.K.); (E.B.)
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40
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41
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Machtakova M, Thérien-Aubin H, Landfester K. Polymer nano-systems for the encapsulation and delivery of active biomacromolecular therapeutic agents. Chem Soc Rev 2021; 51:128-152. [PMID: 34762084 DOI: 10.1039/d1cs00686j] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biomacromolecular therapeutic agents, particularly proteins, antigens, enzymes, and nucleic acids are emerging as powerful candidates for the treatment of various diseases and the development of the recent vaccine based on mRNA highlights the enormous potential of this class of drugs for future medical applications. However, biomacromolecular therapeutic agents present an enormous delivery challenge compared to traditional small molecules due to both a high molecular weight and a sensitive structure. Hence, the translation of their inherent pharmaceutical capacity into functional therapies is often hindered by the limited performance of conventional delivery vehicles. Polymer drug delivery systems are a modular solution able to address those issues. In this review, we discuss recent developments in the design of polymer delivery systems specifically tailored to the delivery challenges of biomacromolecular therapeutic agents. In the future, only in combination with a multifaceted and highly tunable delivery system, biomacromolecular therapeutic agents will realize their promising potential for the treatment of diseases and for the future of human health.
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Affiliation(s)
- Marina Machtakova
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | - Héloïse Thérien-Aubin
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany. .,Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, Canada.
| | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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42
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Li H, Fauquignon M, Haddou M, Schatz C, Chapel JP. Interfacial Behavior of Solid- and Liquid-like Polyelectrolyte Complexes as a Function of Charge Stoichiometry. Polymers (Basel) 2021; 13:3848. [PMID: 34771403 PMCID: PMC8588307 DOI: 10.3390/polym13213848] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/27/2021] [Accepted: 11/01/2021] [Indexed: 11/29/2022] Open
Abstract
We systematically investigate in this work the surface activity of polyelectrolyte complex (PECs) suspensions as a function of the molar charge ratio Z (= [-]/[+]) from two model systems: the weakly and strongly interacting poly (diallyldimethylammonium chloride)/poly (acrylic acid sodium salt) (PDADMAC/PANa) and poly (diallyldimethylammonium chloride)/poly (sodium 4- styrenesulfonate) (PDADMAC/PSSNa) pairs, respectively. For both systems, the PEC surface tension decreases as the system approaches charge stoichiometry (Z = 1) whenever the complexation occurs in the presence of excess PDADMAC (Z < 1) or excess polyanion (Z > 1) consistent with an increased level of charge neutralization of PEs forming increasingly hydrophobic and neutral surface-active species. The behavior at stoichiometry (Z = 1) is also particularly informative about the physical nature of the complexes. The PDADMAC/PANa system undergoes a liquid-liquid phase transition through the formation of coacervate microdroplets in equilibrium with macroions remaining in solution. In the PDADMAC/PSSNa system, the surface tension of the supernatant was close to that of pure water, suggesting that the PSSNa-based complexes have completely sedimented, consistent with a complete liquid-solid phase separation of an out-of-equilibrium system. Besides, the high sensitivity of surface tension measurements, which can detect the presence of trace amounts of aggregates and other precursors in the supernatant, allows for very accurate determination of the exact charge stoichiometry of the complexes. Finally, the very low water/water interfacial tension that develops between the dilute phase and the denser coacervate phase in the PDADAMAC/PANa system was measured using the generalized Young-Laplace method to complete the full characterization of both systems. The overall study showed that simple surface tension measurements can be a very sensitive tool to characterize, discriminate, and better understand the formation mechanism of the different structures encountered during the formation of PECs.
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Affiliation(s)
- Hongwei Li
- Centre de Recherche Paul Pascal (CRPP), UMR CNRS 5031, University of Bordeaux, 33600 Pessac, France; (H.L.); (M.F.); (M.H.)
- Laboratoire de Chimie des Polymères Organiques (LCPO), University of Bordeaux, CNRS, Bordeaux INP, UMR 5629, 33600 Pessac, France
| | - Martin Fauquignon
- Centre de Recherche Paul Pascal (CRPP), UMR CNRS 5031, University of Bordeaux, 33600 Pessac, France; (H.L.); (M.F.); (M.H.)
- Laboratoire de Chimie des Polymères Organiques (LCPO), University of Bordeaux, CNRS, Bordeaux INP, UMR 5629, 33600 Pessac, France
| | - Marie Haddou
- Centre de Recherche Paul Pascal (CRPP), UMR CNRS 5031, University of Bordeaux, 33600 Pessac, France; (H.L.); (M.F.); (M.H.)
- Laboratoire de Chimie des Polymères Organiques (LCPO), University of Bordeaux, CNRS, Bordeaux INP, UMR 5629, 33600 Pessac, France
| | - Christophe Schatz
- Laboratoire de Chimie des Polymères Organiques (LCPO), University of Bordeaux, CNRS, Bordeaux INP, UMR 5629, 33600 Pessac, France
| | - Jean-Paul Chapel
- Centre de Recherche Paul Pascal (CRPP), UMR CNRS 5031, University of Bordeaux, 33600 Pessac, France; (H.L.); (M.F.); (M.H.)
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43
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Design of mucoadhesive gellan gum and chitosan nanoparticles intended for colon-specific delivery of peptide drugs. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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New insights into physicochemical aspects involved in the formation of polyelectrolyte complexes based on chitosan and dextran sulfate. Carbohydr Polym 2021; 271:118436. [PMID: 34364576 DOI: 10.1016/j.carbpol.2021.118436] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/19/2021] [Accepted: 07/09/2021] [Indexed: 11/23/2022]
Abstract
Polyelectrolyte complexation is a technique based on interactions between polyelectrolytes of opposite charges driven by supramolecular interactions. Although many studies address the formation of polyelectrolyte complexes (PECs), few explore strategies and tools to select the best working conditions and are often based on empirical choices. This study evaluates the influence of pH, molecular weight, and polymeric proportion on the formation of PECs based on chitosan:dextran sulfate. In addition, it assesses the approaches that study the influence of pH on the zeta potential of polymeric dispersions as a tool in the design of PECs. Results showed that nanoparticles with an excess of polycation formed aggregates, while an excess of dextran sulfate reduced the size of the particles. The graph of zeta potential as a function of pH proved to be a promising tool in the choice of polymers and a better pH condition in the development of PECs.
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pH-switchable pickering emulsions stabilized by polyelectrolyte-biosurfactant complex coacervate colloids. J Colloid Interface Sci 2021; 600:23-36. [DOI: 10.1016/j.jcis.2021.04.135] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023]
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Affiliation(s)
- Xiaozheng Duan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - An-Chang Shi
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Lijia An
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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47
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Knoerdel AR, Blocher McTigue WC, Sing CE. Transfer Matrix Model of pH Effects in Polymeric Complex Coacervation. J Phys Chem B 2021; 125:8965-8980. [PMID: 34328340 DOI: 10.1021/acs.jpcb.1c03065] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Oppositely charged polyelectrolytes can undergo an associative phase separation, in a process known as polymeric complex coacervation. This phenomenon is driven by the electrostatic attraction between polyanion and polycation species, leading to the formation of a polymer-dense coacervate phase and a coexisting polymer-dilute supernatant phase. There has been significant recent interest in the physical origin and features of coacervation; yet notably, experiments often use weak polyelectrolytes the charge state of which depends on solution pH, while theoretical or computational efforts typically assume strong polyelectrolytes that remain fully charged. There have been only a few efforts to address this limitation, and thus there has been little exploration of how pH can affect complex coacervation. In this paper, we modify a transfer matrix theory of coacervation to account for acid-base equilibria, taking advantage of its ability to directly account for some local ion correlations that will affect monomer charging. We show that coacervation can stabilize the charged state of a weak polyelectrolyte via the proximity of oppositely charged monomers, and can lead to asymmetric phase diagrams where the positively and negatively charged polyelectrolytes exhibit different behaviors near the pKa of either chain. Specifically, there is a partitioning of one of the salt species to a coacervate to maintain electroneutrality when one of the polyelectrolytes is only partially charged. This results in the depletion of the same salt species in the supernatant, and overall can suppress phase separation. We also demonstrate that, when one of the species is only partially charged, mixtures that are off-stoichiometric in volume fraction but stoichiometric in charge exhibit the greatest propensity to form coacervate phases.
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Affiliation(s)
- Ashley R Knoerdel
- Program in Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Whitney C Blocher McTigue
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Charles E Sing
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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48
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Gao S, Wang W, Wu T, Jiang S, Qi J, Zhu Z, Zhang B, Huang J, Yan Y. Folic Acid-Based Coacervate Leading to a Double-Sided Tape for Adhesion of Diverse Wet and Dry Substrates. ACS APPLIED MATERIALS & INTERFACES 2021; 13:34843-34850. [PMID: 34254772 DOI: 10.1021/acsami.1c06844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Adhesives are crucial both in nature and in diversified artificial fields, and developing environment-friendly adhesives with economic procedures remains a great challenge. We report that folic acid-based coacervates can be a new category of excellent adhesives for all kinds of surfaces with long-lasting adhesiveness. Aided by the electrostatic interaction between the π-π stacked folic acid quartets and polycations, the resultant coacervates are able to interact with diversified substrates via a polyvalent hydrogen bond, coordination, and electrostatic interactions. The adhesivity to wood is superior to the strong commercial glues, but without releasing any toxic components. Upon evaporating water, the coacervate can be casted into a non-adhesive flexible self-supporting film, which restores the adhesive coacervate immediately on contacting water with original adhesive ability. In this way, the coacervate can be facilely tailored into a double-sided tape (DST), which is convenient for storage and application under ambient conditions. Given its excellent adhesive performance, release of nontoxic gases, and convenience in storage and application, the folic acid-based DST is very promising as a new adhesive material.
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Affiliation(s)
- Shuitao Gao
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wenkai Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Tongyue Wu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Shasha Jiang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jinwan Qi
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhiyang Zhu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Bin Zhang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jianbin Huang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yun Yan
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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49
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Lim J, Kumar A, Low K, Verma CS, Mu Y, Miserez A, Pervushin K. Liquid-Liquid Phase Separation of Short Histidine- and Tyrosine-Rich Peptides: Sequence Specificity and Molecular Topology. J Phys Chem B 2021; 125:6776-6790. [PMID: 34106723 DOI: 10.1021/acs.jpcb.0c11476] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The increasing realization of the prevalence of liquid-liquid phase separation (LLPS) across multiple length scales of biological constructs, from intracellular membraneless organelles to extracellular load-bearing tissues, has raised intriguing questions about intermolecular interactions regulating LLPS at the atomic level. Squid-beak derived histidine (His)- and tyrosine (Tyr)-rich peptides (HBpeps) have recently emerged as suitable short model peptides to precisely assess the roles of peptide motifs and single residues on the phase behavior and material properties of microdroplets obtained by LLPS. In this study, by systematically introducing single mutations in an HBpep, we have identified specific sticker residues that attract peptide chains together. We find that His and Tyr residues located near the sequence termini drive phase separation, forming interaction nodes that stabilize microdroplets. Combining quantum chemistry simulations with NMR studies, we predict atomic-level bond geometries and uncover inter-residue supramolecular interactions governing LLPS. These results are subsequently used to propose possible topological arrangements of the peptide chains, which upon expansion can help explain the three-dimensional network of microdroplets. The stability of the proposed topologies carried out through all-atom molecular dynamics simulations predicts chain topologies that are more likely to stabilize the microdroplets. Overall, this study provides useful guidelines for the de novo design of peptide coacervates with tunable phase behavior and material properties. In addition, the analysis of nanoscale topologies may pave the way to understand how client molecules can be trapped within microdroplets, with direct implications for the encapsulation and controlled release of therapeutics for drug delivery applications.
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Affiliation(s)
- Jessica Lim
- School of Biological Sciences, Nanyang Technological University (NTU), 60 Nanyang Drive, Singapore, 637 551
| | - Akshita Kumar
- Biological and Biomimetic Material Laboratory, Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, NTU, 50 Nanyang Avenue, Singapore 637 553.,Bioinformatics Institute, A*STAR, 30 Biopolis Street, 07-01 Matrix, Singapore 138 671
| | - Kimberly Low
- School of Biological Sciences, Nanyang Technological University (NTU), 60 Nanyang Drive, Singapore, 637 551
| | - Chandra S Verma
- School of Biological Sciences, Nanyang Technological University (NTU), 60 Nanyang Drive, Singapore, 637 551.,Bioinformatics Institute, A*STAR, 30 Biopolis Street, 07-01 Matrix, Singapore 138 671.,Department of Biological Sciences, National University of Singapore (NUS), 16 Science Drive 4, Singapore 117 558
| | - Yuguang Mu
- School of Biological Sciences, Nanyang Technological University (NTU), 60 Nanyang Drive, Singapore, 637 551
| | - Ali Miserez
- School of Biological Sciences, Nanyang Technological University (NTU), 60 Nanyang Drive, Singapore, 637 551.,Biological and Biomimetic Material Laboratory, Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, NTU, 50 Nanyang Avenue, Singapore 637 553
| | - Konstantin Pervushin
- School of Biological Sciences, Nanyang Technological University (NTU), 60 Nanyang Drive, Singapore, 637 551
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The Potential Role of Polyelectrolyte Complex Nanoparticles Based on Cashew Gum, Tripolyphosphate and Chitosan for the Loading of Insulin. ACTA ACUST UNITED AC 2021. [DOI: 10.3390/diabetology2020009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Polyelectrolytic complexation has stood out due to its application in the development of drug delivery systems using biopolymers as raw materials. The formation of complexes between cashew gum and chitosan can be intermediated by cross-links, mediated by the action of the sodium tripolyphosphate crosslinking agent. These polymers have been used in the nanotechnological development of formulations to protect peptide drugs, such as insulin, allowing their oral administration. In this work, we describe the development of polyelectrolytic complexes from cashew gum and chitosan as biopolymers for oral administration of insulin. The obtained complexes showed a mean particle size of 234 nm and polydispersity index of 0.2. The complexes were 234 nm in size, PDI 0.2, zeta potential −4.5 mV and 22% trapping. The obtained complexes demonstrated considerable and promising characteristics for use as oral insulin delivery systems.
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