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Petrunin AV, Höfken T, Schneider S, Mota-Santiago P, Houston JE, Scotti A. Phase behavior of binary mixtures of hollow and regular microgels. SOFT MATTER 2024. [PMID: 39364605 DOI: 10.1039/d4sm00862f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2024]
Abstract
Soft colloids are widely used to study glass transition, aging and jamming. A high size polydispersity is typically introduced in these systems to avoid crystal formation. Here, we use binary mixtures of hollow and regular microgels with comparable sizes to inhibit crystallization. The phase behavior of the mixture is probed as a function of the number fraction of hollow microgels and characterized by small-angle X-ray scattering. Molecular dynamic simulations are used to extract the particle-particle pair potential and obtain insight on their deformation. The results suggest that the high deformability of the hollow microgels offers an alternative route to maximize the entropy without crystal formation.
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Affiliation(s)
- Alexander V Petrunin
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, EU, Germany.
| | - Tom Höfken
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, EU, Germany.
| | - Stefanie Schneider
- Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, EU, Germany.
| | - Pablo Mota-Santiago
- Australian Synchrotron, ANSTO, Clayton, Victoria, Australia
- MAX IV Laboratory, Lund University, P.O. Box 118, 22100 Lund, EU, Sweden
| | - Judith E Houston
- European Spallation Source ERIC, Box 176, SE-221 00 Lund, EU, Sweden
| | - Andrea Scotti
- Division of Physical Chemistry, Lund University, SE-22100 Lund, Sweden.
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102
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Kshirsagar SD, Shelake SP, Biswas B, Ramesh K, Gaur R, Abraham BM, Sainath AVS, Pal U. Emerging ZnO Semiconductors for Photocatalytic CO 2 Reduction to Methanol. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2407318. [PMID: 39367556 DOI: 10.1002/smll.202407318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2024] [Revised: 09/09/2024] [Indexed: 10/06/2024]
Abstract
Carbon recycling is poised to emerge as a prominent trend for mitigating severe climate change and meeting the rising demand for energy. Converting carbon dioxide (CO2) into green energy and valuable feedstocks through photocatalytic CO2 reduction (PCCR) offers a promising solution to global warming and energy needs. Among all semiconductors, zinc oxide (ZnO) has garnered considerable interest due to its ecofriendly nature, biocompatibility, abundance, exceptional semiconducting and optical properties, cost-effectiveness, easy synthesis, and durability. This review thoroughly discusses recent advances in mechanistic insights, fundamental principles, experimental parameters, and modulation of ZnO catalysts for direct PCCR to C1 products (methanol). Various ZnO modification techniques are explored, including atomic size regulation, synthesis strategies, morphology manipulation, doping with cocatalysts, defect engineering, incorporation of plasmonic metals, and single atom modulation to boost its photocatalytic performance. Additionally, the review highlights the importance of photoreactor design, reactor types, geometries, operating modes, and phases. Future research endeavors should prioritize the development of cost-effective catalyst immobilization methods for solid-liquid separation and catalyst recycling, while emphasizing the use of abundant and non-toxic materials to ensure environmental sustainability and economic viability. Finally, the review outlines key challenges and proposes novel directions for further enhancing ZnO-based photocatalytic CO2 conversion processes.
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Affiliation(s)
- Switi Dattatraya Kshirsagar
- Department of Energy & Environmental Engineering, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Sandip Prabhakar Shelake
- Polymers and Functional Materials and Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Bapan Biswas
- Department of Energy & Environmental Engineering, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Kanaparthi Ramesh
- Catalysis Department, Hindustan Petroleum Green R&D Centre, Bangalore, 560067, India
| | - Rashmi Gaur
- Catalysis Department, Hindustan Petroleum Green R&D Centre, Bangalore, 560067, India
| | - B Moses Abraham
- A.J. Drexel Nanomaterials Institute, Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Annadanam V Sesha Sainath
- Polymers and Functional Materials and Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ujjwal Pal
- Department of Energy & Environmental Engineering, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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103
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Mehta S, Bahadur J, Kumar A, Kumar S, Sen D. Unveiling the Electrostatically Driven Collapsing and Relaxation of Polyelectrolyte-Colloid Complexes: A Tunable Pathway to Colloidal Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39364558 DOI: 10.1021/acs.langmuir.4c01795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2024]
Abstract
Polyelectrolyte-colloid (PEC) complexes, ubiquitous across diverse fields, exhibit remarkable phase transitions, mimicking intricate biological assemblies. While the role of electrostatic forces in the PEC complex assembly is undeniable, achieving a holistic comprehension remains an elusive goal. This study unveils a fascinating phenomenon: the formation of highly collapsed coacervate structures in PEC complexes at elevated polyelectrolyte concentrations, followed by the swelling of complexes at even higher concentrations. Employing anionic silica colloids and cationic chitosan as a model system, small-angle X-ray/neutron (SAXS/SANS) elucidates the transition from a bead-on-a-necklace-like phase to a dense packed coacervate state (with volume fraction ∼0.62) until 3 wt % concentration of the polyelectrolyte. However, beyond 3 wt %, swelling of the dense collapsed assembly is observed. This structural evolution of PEC complexes as a function of chitosan concentration is attributed to the interplay of electrostatically driven interactions and the Donnan effect. Notably, the critical concentration for coacervation, Cs*, demonstrates a linear dependence on the initial colloid concentration. Interestingly, a complete expansion of the coacervate is observed at a high polyelectrolyte concentration, particularly for dilute colloid solutions (2 wt %). Furthermore, the addition of an electrolyte sheds light on the delicate interplay of forces. While a low electrolyte concentration partially screens charges, leading to a shift in phase diagram, higher concentrations trigger complete coacervate dissolution beyond the critical electrolyte concentration of 0.2 M, due to the complete screening of electrostatic charges.
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Affiliation(s)
- Swati Mehta
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Jitendra Bahadur
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Ashwani Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Sugam Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Debasis Sen
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
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104
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A N B, O D H, N S K, A V Z, B B D. Immunodetection of Poorly Soluble Substances: Limitations and Their Overcoming. Crit Rev Anal Chem 2024:1-26. [PMID: 39360478 DOI: 10.1080/10408347.2024.2402835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
Immunoassays based on the specific antigen-antibody interactions are efficient tools to detect various compounds and estimate their content. Usually, these assays are implemented in water-saline media with composition close to physiological conditions. However, many substances are insoluble or cannot be molecularly dispersed in such media, which objectively creates problems when interacting in aquatic environments. Thus, obtaining immunoreactants and implementing immunoassays of these substances need special methodological solutions. Hydrophobicity of antigens as well as their limited ability to functionalization and conjugation are often overlooked when developing immunoassays for these compounds. The main key finding is the possibility to influence the behavior of hydrophobic compounds for immunoassays, which requires specific approaches summarized in the review. Using the examples of two groups of compounds-surfactants (alkyl- and bisphenols) and fullerenes, we systematized the existing knowledge and experience in the development of immunoassays. This review addresses the challenges of immunodetection of poorly soluble substances and proposes solutions such as the use of hydrotropes, other solubilization techniques, and alternative receptors (aptamers and molecularly imprinted polymers).
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Affiliation(s)
- Berlina A N
- Research Center of Biotechnology of the Russian Academy of Sciences, A. N. Bach Institute of Biochemistry, Moscow, Russia
| | - Hendrickson O D
- Research Center of Biotechnology of the Russian Academy of Sciences, A. N. Bach Institute of Biochemistry, Moscow, Russia
| | - Komova N S
- Research Center of Biotechnology of the Russian Academy of Sciences, A. N. Bach Institute of Biochemistry, Moscow, Russia
| | - Zherdev A V
- Research Center of Biotechnology of the Russian Academy of Sciences, A. N. Bach Institute of Biochemistry, Moscow, Russia
| | - Dzantiev B B
- Research Center of Biotechnology of the Russian Academy of Sciences, A. N. Bach Institute of Biochemistry, Moscow, Russia
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105
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Xue B, Lai Y, Cai L, Liu Y, Yin JF, Yin P. Emergent Research Trends on the Structural Relaxation Dynamics of Molecular Clusters: From Structure-Property Relationship to New Function Prediction. Acc Chem Res 2024. [PMID: 39360563 DOI: 10.1021/acs.accounts.4c00479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
ConspectusMolecular clusters (MCs) are monodispersed, precisely defined ensembles of atom collections featured with shape-persistent architectures that can deliver certain functions independently. Their molecular compositions and surface functionalities can be tailored feasibly in a predefined manner, and they can be applied as basic structural units to be engineered into materials with desirable hierarchical structures and enriched functions. The chemical systems also offer great opportunities for the design and fabrication of soft structural materials without the chain topologies of polymers. The bulks of MC assemblies demonstrate viscoelasticity that is used to be considered as the unique feature of polymers, while the MC systems are distinct from polymers since their elasticities are resilient even at temperatures 100 K above their glass transition temperatures. The understanding of their anomalous viscoelasticity and the extended studies of general structure-property relationships are desired for the development of new chemical systems for emergent functions and the possibilities to resolve the intrinsic trade-offs of traditional materials.Meanwhile, general macroscopic functions or properties of materials are related to the transportation of mass, momentum, and/or energy, and they are basically realized or directed by the motions of structural units at different length scales. Structural relaxation dynamics research is critical in quantifying motions ranging from fast bond deformation, bond break/formation, and diffusion of ions and particles to the cooperative motions of structure units. Due to the advancement of measurement technology for relaxation dynamics (e.g., quasi-elastic scattering and broadband dielectric spectroscopy), the structural relaxation dynamics of MC materials have been probed for the first time, and their multiple relaxation modes across several temporal scales were systematically studied to bridge the correlation between molecular structures and macroscopic functions. The fingerprint information from dynamics studies, e.g., the temperature dependence of relaxation time and certain property, e.g., ion conductivity, was proposed to quantify the structure-property relationship, and the microscopic mechanism on the mechanical properties, ion conduction, and gas absorption and separation of MC materials can be fully understood.In this Account, to elucidate the uniqueness of MC materials, especially in comparison with polymers, four topics are mainly summarized: structural features, relaxation dynamics characterization techniques, relaxation dynamics characteristics, and quantified understanding of the structure-property relationship. The capability for new function prediction from relaxation dynamics studies is also introduced, and the typical example in impact resistant materials is provided. The Account aims to prove the significance of relaxation dynamics characterization for material innovation, while it also confirms the potential of MCs for functional material fabrications.
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Affiliation(s)
- Binghui Xue
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yuyan Lai
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Linkun Cai
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yuan Liu
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jia-Fu Yin
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou 510640, P. R. China
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106
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Yadav R, Sivoria N, Maiti S. Salt Gradient-Induced Phoresis of Vesicles and Enhanced Membrane Fusion in a Crowded Milieu. J Phys Chem B 2024; 128:9573-9585. [PMID: 39295542 DOI: 10.1021/acs.jpcb.4c03985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2024]
Abstract
Phoresis of biocolloidal objects in response to chemical gradients is a matter of interest among diverse scientific disciplines owing to their importance in the spatiotemporal orchestration of biochemical processes. Although there are reports of soft matter transport/phoresis in the gradient of ions or salts in the aqueous system, their phoretic behavior in the presence of macromolecular crowder is largely unexplored. Notably, cellular cytoplasm is illustrated as a crowded milieu and thereby understanding biomolecular phoresis in the presence of polymeric macromolecules would endorse phoretic behavior in a biomimetic environment. Here, we report the phoresis-induced enhanced aggregation and fusion of vesicles in gradients of monovalent (NaCl) and divalent salt (MgCl2), in the presence of polymeric crowder, polyethylene glycol of molecular weight 400 (PEG 400). Apart from diffusiophoresis, depletion force plays a crucial factor in crowded environments to control localized vesicle aggregation in a salt gradient. This demonstration will potentially show the pathway to future research related to spatiotemporally correlated liposomal transport and membrane-dependent function (such as content mixing and signaling) in a physiologically relevant crowded environment.
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Affiliation(s)
- Reena Yadav
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli, Knowledge City 140306, India
| | - Neetu Sivoria
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli, Knowledge City 140306, India
| | - Subhabrata Maiti
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli, Knowledge City 140306, India
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107
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Zheng F, Huang Q, Xiang J, Zhu Z, Lu J, Xu J, Liang Z, Xie L, Song F, Sun Q. Constructing Molecular Networks on Metal Surfaces through Tellurium-Based Chalcogen-Organic Interaction. ACS NANO 2024. [PMID: 39360450 DOI: 10.1021/acsnano.4c11344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
On-surface molecular self-assembly presents an important approach to the development of low-dimensional functional nanostructures and nanomaterials. Traditional strategies primarily exploit hydrogen bonding or metal coordination, yet the potential of chalcogen bonding (ChB) for on-surface self-assemblies remains underexplored. Here, we explore fabricating molecular networks via tellurium (Te)-directed chalcogen-organic interactions. Employing carbonitrile molecules as molecular building blocks, we have achieved extended 2D networks exhibiting a 4-fold binding motif on Au(111), marking a notable difference from the conventional coordinative interaction involving transition metals. Our findings, supported by density functional theory (DFT) and scanning tunneling spectroscopy (STS), show that the Te-carbonitrile interaction exhibits lower stability compared to the metal-organic coordination, and the construction of the Te-directed molecular networks does not alter the electronic properties of the involved molecules. Introducing chalcogen-directed interactions may expand the spectrum of strategies in supramolecular assembly, contributing to the design of advanced molecular architectures for nanotechnological applications.
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Affiliation(s)
- Fengru Zheng
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Qi Huang
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Juan Xiang
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Zhiwen Zhu
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Jiayi Lu
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Jinyang Xu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhaofeng Liang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Lei Xie
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Fei Song
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Qiang Sun
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
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108
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Guzik A, de Maere d'Aertrycke F, Stuart MCA, Raffa P. Lowest gelation concentration in a complex-coacervate-driven self-assembly system, achieved by redox-RAFT synthesis of high molecular weight block polyelectrolytes. SOFT MATTER 2024. [PMID: 39359157 DOI: 10.1039/d4sm00763h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
The objective of this work was to synthesize high molecular weight polyelectrolyte complex (PEC) micelles that are effective in controlling the rheology of aqueous solutions at low concentrations, paving the way for industrial applications of thickeners based on the principle of electrostatic self-assembly. Redox-initiated RAFT (reversible addition-fragmentation chain-transfer) polymerization was used to obtain anionic block polyelectrolytes based on poly(sodium 2-acrylamido-2-methylpropane sulfonate) and poly(acrylamide)-poly(AMPS)-block-poly(AM) (di-block) and poly(AMPS)-block-poly(AM)-block-poly(AMPS) (tri-block), with molecular weights of 237 kDa and 289 kDa and polydispersities of 1.29 and 1.34, respectively. A random poly(AMPS)-co-poly(AM) copolymer was also synthesized for comparison. PEC micelles were obtained upon mixing with cationic poly(N-[3-(dimethylamino)propyl]methacrylamide hydrochloride) - poly(DMAPMA), forming viscoelastic gels at unprecedented low concentrations of <3 wt% for the di-block and <1 wt% for the tri-block, which to date is the lowest demonstrated gelation concentration for a synthetic PEC micelle system. Differences between tri-block and di-block architectures are discussed, with the former being more affected by the addition of salt, which is attributed to percolated network breakdown. The random co-polymer was shown not to be an effective thickener but displayed a surprising lack of phase separation upon coacervation. The assemblies were characterized using dynamic light scattering (DLS) and cryo transmission electron microscopy (cryoTEM), revealing spherical micelles with a diameter of approximately 200 nm for the diblock and a mixture of spherical micelles and network particles for the tri-block PEC micelles. The micelles were not affected by dilution down to a polymer concentration of 7.8 × 10-4% (approx. 0.03 μM). Responsiveness to salinity, pH, and temperature was studied using DLS, revealing a critical NaCl concentration of 1.1 M for the block copolymer micelles.
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Affiliation(s)
- Aleksander Guzik
- Smart and Sustainable Polymeric Products, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4 9747 AG, The Netherlands.
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Fabrice de Maere d'Aertrycke
- Smart and Sustainable Polymeric Products, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4 9747 AG, The Netherlands.
| | - Marc C A Stuart
- Electron Microscopy, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Patrizio Raffa
- Smart and Sustainable Polymeric Products, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4 9747 AG, The Netherlands.
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109
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Ichikawa T, Obara S, Yamaguchi S, Tang Y, Kato T, Zeng X. Design of V-shaped ionic liquid crystals: atropisomerisation ability and formation of double-gyroid molecular assemblies. Chem Commun (Camb) 2024; 60:11279-11282. [PMID: 39196639 DOI: 10.1039/d4cc03002h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
We designed V-shaped ionic liquid crystals with two sterically congested ionic parts at the vertex. Depending on the degree of steric hindrance, atropisomerisation occurred in solution. All compounds formed bicontinuous cubic phases with double-gyroid structures in the bulk state, partially owing to the co-existence of atropisomers with opposite chirality.
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Affiliation(s)
- Takahiro Ichikawa
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
| | - Soki Obara
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
| | - Saori Yamaguchi
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
| | - Yumin Tang
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK
| | - Toshiyo Kato
- Smart-Core-Facility Promotion Organization, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
| | - Xiangbing Zeng
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK
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110
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Lu Z, Yu J, Wang K, Cheng W, Hou L. NIR light-triggered bursting of double-emulsion drops (DEDs) for microdroplet generation. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:6501-6508. [PMID: 39240212 DOI: 10.1039/d4ay01194e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
Microdroplets have significant applications in microbiology, pharmaceuticals, cosmetics, and synthetic materials. Herein, we present for the first time, a near-infrared (NIR)-light-triggered double-emulsion drop (DED) bursting method for generating a large number of micro-droplets with a size of several microns. Under the irradiation of NIR light, the inner water phase of the DED containing a trace amount of Prussian blue (PB) rapidly heats up and evaporates rapidly to generate microbubbles due to the photothermal property of PB. By controlling the light intensity, the DED could be inflated by the constant coalescence of microbubbles, which then burst immediately and tear the middle oil phase to form a large number of microdroplets. The performance of the microdroplets generated by NIR-light-triggered DED bursting was investigated by varying the oil shell thickness (HO), oil phase viscosity (ηO) and oil type. HO and ηO were the key factors affecting the generation of microdroplets. DEDs with lower HO and ηO generated lower polydispersity and a large number of microdroplets via NIR-triggered DED bursting. The proportion of microdroplets of sizes below 10 μm reached up to 95%. Furthermore, camellia oil, as the middle oil phase of the DEDs, generated lower polydispersity and a large number of microdroplets measuring several microns. The as-developed bursting method has great potential to generate micro-droplets for micro-/nano- and biotechnology applications.
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Affiliation(s)
- Zhaoze Lu
- Zhejiang Provincial Key Laboratory of Flow Measurement Technology, College of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, China.
| | - Jian Yu
- Zhejiang Provincial Key Laboratory of Flow Measurement Technology, College of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, China.
| | - Kaihua Wang
- Zhejiang Provincial Key Laboratory of Flow Measurement Technology, College of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, China.
| | - Wei Cheng
- Key Laboratory of Measuring & Online Assessment of Energy for Jiangsu Province Market Regulation, Suzhou Institute of Metrology, Suzhou, 215128, China
| | - Likai Hou
- Zhejiang Provincial Key Laboratory of Flow Measurement Technology, College of Metrology Measurement and Instrument, China Jiliang University, Hangzhou 310018, China.
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111
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Pierson JA, Yang JE, Wright ER. Recent advances in correlative cryo-light and electron microscopy. Curr Opin Struct Biol 2024; 89:102934. [PMID: 39366119 DOI: 10.1016/j.sbi.2024.102934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 09/09/2024] [Accepted: 09/10/2024] [Indexed: 10/06/2024]
Abstract
Correlative light and electron microscopy (CLEM) pipelines serve to integrate the imaging modalities of fluorescence light microscopy (FLM) and cryogenic electron microscopy (cryo-EM) to produce contextually relevant high-resolution structural snapshots of biological systems. Innovations in sample preparation, instrumentation, imaging, and data processing have advanced the field of cryo-EM. This review focuses on prior work and recent developments in the field of cryo- EM that support further integration of technologies for correlative microscopy workflows.
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Affiliation(s)
- Joshua A Pierson
- Department of Biochemistry, University of Wisconsin, Madison, WI, USA
| | - Jie E Yang
- Department of Biochemistry, University of Wisconsin, Madison, WI, USA; Cryo-Electron Microscopy Research Center, Department of Biochemistry, University of Wisconsin, Madison, WI, USA; Midwest Center for Cryo-Electron Tomography, Department of Biochemistry, University of Wisconsin, Madison, WI, USA
| | - Elizabeth R Wright
- Department of Biochemistry, University of Wisconsin, Madison, WI, USA; Cryo-Electron Microscopy Research Center, Department of Biochemistry, University of Wisconsin, Madison, WI, USA; Midwest Center for Cryo-Electron Tomography, Department of Biochemistry, University of Wisconsin, Madison, WI, USA; Morgridge Institute for Research, Madison, WI, USA.
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112
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Cozzolino S, Gutfreund P, Vorobiev A, Devishvili A, Greaves A, Nelson A, Yepuri N, Luengo GS, Rutland MW. Mimicking the hair surface for neutron reflectometry. SOFT MATTER 2024; 20:7634-7645. [PMID: 39291556 DOI: 10.1039/d4sm00784k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
The surface of human hair is normally hydrophobic as it is covered by a lipid layer, mainly composed of 18-methyleicosanoic acid (18-MEA). When the hair is damaged, this layer can be partially or fully removed and more hydrophilic, mainly negatively charged surfaces are formed with a wide variety of physical and chemical characteristics. The cosmetic industry is currently embracing the opportunity of increasing the sustainability of their hair-care products whilst improving product performance. To do this, it is vital to have a deeper understanding of the hair surface and how it interacts with hair-care ingredients. This work contributes to this by harnessing the potential of neutron reflectometry (NR) with scattering contrast variation to describe hierarchical adsorption. Three types of hair-mimetic surfaces have been produced: two "healthy hair" models to probe the role of lipid structure, and one "damaged hair" model, to consider the effect of the surface charge. Adsorption of hair-care ingredients has then been studied. The results for these relatively short lipid models indicate that a methyl branch has little effect on adsorption. The "damaged hair" studies, however, reveal the unexpected apparent adsorption of an anionic surfactant to a negative surface. This preferential adsorption of the otherwise solubilised neutral components demonstrates a facile route to selectively deliver a protective film on a damaged hair fibre, without the need for a cationic species. On a more general note, this study also demonstrates the feasibility of using NR to characterize such complex systems.
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Affiliation(s)
- Serena Cozzolino
- Division of Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble cedex 9, France
| | - Philipp Gutfreund
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble cedex 9, France
| | - Alexei Vorobiev
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble cedex 9, France
- Department of Physics and Astronomy, Materials Physics, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Anton Devishvili
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble cedex 9, France
- Department of Physics and Astronomy, Materials Physics, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Andrew Greaves
- L'Oréal Research and Innovation, 1 avenue Eugène Schueller, 93600 Aulnay-sous-Bois, France.
| | - Andrew Nelson
- Australian Nuclear Science and Technology Organisation, Australian Centre for Neutron Scattering, New Illawarra Rd, Lucas Heights, New South Wales, Australia
| | - Nageshwar Yepuri
- Australian Nuclear Science and Technology Organisation, National Deuteration Facility, New Illawarra Rd, Lucas Heights, New South Wales, Australia
| | - Gustavo S Luengo
- L'Oréal Research and Innovation, 1 avenue Eugène Schueller, 93600 Aulnay-sous-Bois, France.
| | - Mark W Rutland
- Division of Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
- Bioeconomy and Health Department, Materials and Surface Design, RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
- Laboratoire de Tribologie et Dynamique des Systèmes, École Centrale de Lyon, 69134 Ecully CEDEX, France
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113
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Wang Y, Tian Y, Xie Y, Sun Y, Li T, Zhang X, Wang Y, Huang J, Xia B, Wang S, Dong W. The relationship between the secondary structure and the emulsifying ability of protein-based particles and the Pickering emulsions stabilized by the zein-lysine complex. SOFT MATTER 2024. [PMID: 39356209 DOI: 10.1039/d4sm00394b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
Due to the sustainability and widespread use of proteins, protein-based materials are extensively utilized in the preparation of Pickering emulsions. However, the relationship between the secondary structure of proteins and their emulsifying ability has not been further investigated. This study used the addition of three different amino acids to influence the interaction between zein chains, which may induce changes in the secondary structure of the prepared zein complex particles. This study demonstrates that the emulsifying properties of proteins, such as dispersibility, zeta potential, three-phase contact angles, interfacial affinity, adsorption rates, and the volume of the stabilized oil phase, are closely related to the β-sheet content of the complex particles, providing a theoretical reference for protein-based stabilizers. Additionally, amino acids, as the blocks of proteins, have high compatibility with proteins, and using amino acids as modifiers aligns with the safety requirements for food processing. In this study, the prepared zein-lysine complex particles have good emulsifying ability, capable of stabilizing a 50 (v/v)% emulsion at a lower concentration (10 mg mL-1), and the prepared emulsion exhibits high-temperature stability and ionic resistance. This characteristic makes the emulsion potentially valuable for application in systems with high salt concentrations and those that may undergo heat treatment.
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Affiliation(s)
- Yijie Wang
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Yunze Tian
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Yunpeng Xie
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Yue Sun
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Ting Li
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Xuhui Zhang
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Yang Wang
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Jing Huang
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Bihua Xia
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Shibo Wang
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| | - Weifu Dong
- The Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
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114
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Li M, Miao L, Xu X, Liu Y, Wang Y, Yang F. Hypoxia-Responsive Biomimetic Nanobubbles for Oxygen Delivery Promote Synergistic Ischemic Stroke Protection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:52036-52046. [PMID: 39315539 DOI: 10.1021/acsami.4c11009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
Effective, precise, and controllable oxygen delivery is crucial for regulating the oxygenation balance of brain tissue at the early stages of acute ischemic stroke (AIS) because the absence of oxygen may result in a series of highly interconnected vascular-neural pathological events, including oxidative stress, inflammation, and neuroapoptosis. In this study, platelet membrane-reassembled oxygen nanobubbles (PONBs) were constructed for oxygen delivery to protect AIS. Benefiting from the preserved natural targeting ability of platelet membranes, oxygen can be controlled release into the hypoxia lesion at the preperfusion stage due to vascular injury targeting and oxygen sustained diffusion capability after PONBs administration. Furthermore, synergizing with bioactive components carried by platelet membranes, PONBs can inhibit post-AIS vascular occlusion and maintain blood-brain barrier integrity, thereby facilitating enhanced oxygen delivery of PONBs, establishing a positive feedback loop between oxygen delivery and AIS protection. Additionally, the accumulation of PONBs enhances the ultrasound imaging contrast, enabling precise localization and dynamic monitoring of AIS lesions. Thus, PONBs represent a promising strategy for the diagnosis and treatment of AIS.
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Affiliation(s)
- Mingxi Li
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Lijun Miao
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Xuan Xu
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, 87 Dingjiaqiao, Nanjing 210009, P. R. China
| | - Yang Liu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Yakun Wang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Fang Yang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
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115
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Lin Y, Chen H, Wang L, Su J, Li J, Huang X. Lipase activated endocytosis-like behavior of oil-in-water emulsion. Nat Commun 2024; 15:8517. [PMID: 39353937 PMCID: PMC11445447 DOI: 10.1038/s41467-024-52802-8] [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: 12/14/2023] [Accepted: 09/23/2024] [Indexed: 10/03/2024] Open
Abstract
Oil-in-water emulsion is a system with extensive applications in foods, cosmetics and coating industries, and it could also be designed into an artificial lipid droplet in recent works. However, the insights into the biophysical dynamic behaviors of such artificial lipid droplets are lacking. Here, we reveal an enzymatic reaction triggered endocytosis-like behavior in the oil-in-water emulsion lipid droplets. A thermodynamically favored recruitment of lipases onto the membrane of the droplets is demonstrated. We confirm that the hydrolysis of tributyrin by lipases can decrease the interfacial tension and increase the compressive force on the membrane, which are the two main driving forces for triggering the endocytosis-like behavior. The endocytosis-like behavior induced various emerging functionalities of the lipid droplets, including proteins, DNA or inorganic particles being efficiently sequestered into the oil droplet with reversible release as well as enhanced cascade enzymatic reaction. Overall, our studies are expected to open up a way to functionalize oil-in-water emulsions capable of life-inspired behaviors and tackle emerging challenges in bottom-up synthetic biology, revealing the unknown dynamic behaviors of lipid droplets in living organisms.
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Affiliation(s)
- Youping Lin
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Haixu Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Lei Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Jiaojiao Su
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Junbo Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Xin Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
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116
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Wang Y, Tang S, Jiang L, Yuan Z, Zhang Y. A review of lignin application in hydrogel dressing. Int J Biol Macromol 2024:135786. [PMID: 39366610 DOI: 10.1016/j.ijbiomac.2024.135786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 09/08/2024] [Accepted: 09/17/2024] [Indexed: 10/06/2024]
Abstract
Lignin is the most abundant natural aromatic polymer in the world. Currently, researchers have developed a number of lignin-based composite materials that are widely used in various fields, including industry, agriculture and medicine. Especially in recent years, lignin has attracted great interest as a high-value product for biomedical applications. Due to its antioxidant, antibacterial, adhesive and other properties, lignin is a promising candidate for the development of hydrogel dressings. However, there is no comprehensive overview of the application of lignin-based hydrogel dressings. In this review, lignin-based hydrogel skin dressings were first presented, and the preparation methods of physical and chemical crosslinking in lignin-based hydrogel dressings were discussed. In addition, various functional and environmentally responsive lignin-based hydrogel dressings were primarily reviewed. Finally, the prospects for the development of novel multifunctional lignin-based hydrogel dressings in the future were presented. In conclusion, this review provided a timely and comprehensive summary of the latest advances in the use of lignin as a biomaterial for hydrogel dressings, which would provide valuable guidance for the further development of lignin-based hydrogels.
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Affiliation(s)
- Yuqing Wang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, PR China
| | - Shuo Tang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, PR China
| | - Liuyun Jiang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, PR China.
| | - Zhu Yuan
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, PR China
| | - Yan Zhang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, PR China
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117
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Vaas APJP, Yu RB, Quirino JP. Stacking in electrophoresis by electroosmotic flow-assisted admicelle to solvent microextraction. Anal Bioanal Chem 2024:10.1007/s00216-024-05554-9. [PMID: 39358467 DOI: 10.1007/s00216-024-05554-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 09/16/2024] [Accepted: 09/17/2024] [Indexed: 10/04/2024]
Abstract
An in-line sample concentration method for capillary electrophoresis called admicelle to solvent microextraction was proposed. In this technique, analytes were trapped in the cetyltrimethylammonium bromide admicelles formed in situ on the negatively charged capillary surface. A solvent plug was then partially injected hydrodynamically to collapse the admicelles, which liberated and focused the analytes at the solvent front. Voltage was applied across the capillary, completing the stacking process. Various solvents, namely, methanol, ethanol, and acetonitrile, were investigated. The optimal solvent for solvent to admicelle microextraction was 30% acetonitrile in 24 mM sodium tetraborate (pH 9.2). Sample injection time and solvent to sample injection ratio were also optimised. For this demonstration, the optimum sample injection time and solvent to sample injection ratio were 320 s and 1:2, respectively. Using the optimum conditions, UV detection sensitivity was enhanced 132-176-fold for the model anions. The LOQ, %intra-/inter-day (n = 6/n = 12, 2 days) repeatability, and linearity (R2) of admicelle to solvent microextraction were 0.08-2 µg/mL, 1.9-3.9%, 2.8-4.9%, and 0.992, respectively. Admicelle to solvent microextraction was applied to the analysis of various fortified water samples, with good repeatability (%RSD = 0.5-3.6%), and no matrix interferences.
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Affiliation(s)
- Andaravaas Patabadige Jude P Vaas
- Australian Centre for Research On Separation Science (ACROSS), School of Natural Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart, TAS, 7001, Australia
| | - Raymond B Yu
- Australian Centre for Research On Separation Science (ACROSS), School of Natural Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart, TAS, 7001, Australia.
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of the Philippines Manila, Manila, Philippines.
| | - Joselito P Quirino
- Australian Centre for Research On Separation Science (ACROSS), School of Natural Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart, TAS, 7001, Australia
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118
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Wang Y, Niu Z, Li R, Wang S, Yang J. Effect of chitosan oligosaccharides with different molecular weight in alleviating textural deterioration of chicken myofibrillar protein gel with high-temperature treatment. Int J Biol Macromol 2024:136253. [PMID: 39366621 DOI: 10.1016/j.ijbiomac.2024.136253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2024] [Revised: 09/22/2024] [Accepted: 10/01/2024] [Indexed: 10/06/2024]
Abstract
The molecular weight (MW) of oligosaccharides on gel properties of myofibrillar protein (MP) at high temperature remains unclear. In this study, it was found that chitosan oligosaccharides (CO) with different MW all significantly alleviated the textural deterioration of MP gel with high-temperature treatment. Moreover, MP-CO gel with the largest MW had the highest breaking force and the lowest cooking loss. Low-field NMR results further indicated that MP-CO gel with larger MW of CO had gradually increased relaxation rate, thus binding water more tightly. Rheological and microrheological tests suggested the addition of CO with larger MW resulted in much tighter gel network. These results indicated that CO with larger MW improved the quality of MP gel more effectively, which was because CO with larger MW inhibited aggregation of MP to a larger extent, resulting in smaller MP aggregates. Then MP-CO gel with much denser and more homogeneous structure was formed. Besides, MP-CO gel with larger MW of CO had higher content of β-sheet, resulting in MP gel with more ordered structure and better gel quality. Therefore, this study provided theoretical guidance for choosing the appropriate CO in improving texture of high temperature meat products.
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Affiliation(s)
- Yuntao Wang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, China; Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, China
| | - Zijian Niu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, China; Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, China
| | - Rui Li
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Shasha Wang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, China; Key Laboratory of Cold Chain Food Processing and Safety Control (Zhengzhou University of Light Industry), Ministry of Education, China
| | - Jinchu Yang
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China.
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119
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Arunachalam S, Lin M, Daniel D. Probing the physical origins of droplet friction using a critically damped cantilever. SOFT MATTER 2024; 20:7583-7591. [PMID: 39248408 DOI: 10.1039/d4sm00601a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Previously, we and others have used cantilever-based techniques to measure droplet friction on various surfaces, but typically at low speeds U < 1 mm s-1; at higher speeds, friction measurements become inaccurate because of ringing artefacts. Here, we are able to eliminate the ringing noise using a critically damped cantilever. We measured droplet friction on a superhydrophobic surface over a wide range of speeds U = 10-5-10-1 m s-1 and identified two regimes corresponding to two different physical origins of droplet friction. At low speeds U < 1 cm s-1, the droplet is in contact with the top-most solid (Cassie-Baxter), and friction is dominated by contact-line pinning with Ffric force that is independent of U. In contrast, at high speeds U > 1 cm s-1, the droplet lifts off the surface, and friction is dominated by viscous dissipation in the air layer with Ffric ∝ U2/3 consistent with Landau-Levich-Derjaguin predictions. The same scaling applies for superhydrophobic and underwater superoleophobic surfaces despite their very different surface topographies and chemistries, i.e., the friction scaling law derived here is universal.
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Affiliation(s)
- Sankara Arunachalam
- Droplet Lab, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Marcus Lin
- Droplet Lab, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Dan Daniel
- Droplet Lab, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
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120
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Wu Q, Choi V, Bau L, Carugo D, Evans ND, Stride E. Investigation of Ultrasound Mediated Extravasation of a Model Drug by Perfluorobutane Nanodroplets. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:1573-1584. [PMID: 39060156 DOI: 10.1016/j.ultrasmedbio.2024.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 06/14/2024] [Accepted: 06/29/2024] [Indexed: 07/28/2024]
Abstract
OBJECTIVE Perfluorocarbon nanodroplets (NDs) have been widely investigated as both diagnostic and therapeutic agents. There remains, however, a challenge in generating NDs that do not vaporize spontaneously but can be activated at ultrasound pressures that do not produce unwanted bioeffects. In previous work, it has been shown that phospholipid-coated perfluorobutane (PFB) NDs can potentially overcome this challenge. The aim of this study was to investigate whether these NDs can promote drug delivery. METHODS A combination of high-speed optical imaging and passive cavitation detection was used to study the acoustic properties of the PFB-NDs in a tissue mimicking phantom. PFB-NDs were exposed to ultrasound at frequencies from 0.5 to 1.5 MHz and peak negative pressures from 0.5 to 3.5 MPa. In addition, the penetration depth of two model drugs (Nile Red and 200 nm diameter fluorescent polymer spheres) into the phantom was measured. RESULTS PFB NDs were found to be stable in aqueous suspension at both 4°C and 37°C; their size remaining unchanged at 215 ± 11 nm over 24 h. Penetration of both model drugs in the phantom was found to increase with increasing ultrasound peak negative pressure and decreasing frequency and was found to be positively correlated with the energy of acoustic emissions. Extravasation depths >1 mm were observed at 0.5 MHz with pressures <1 MPa. CONCLUSION The results of the study thus suggest that PFB NDs can be used both as drug carriers and as nuclei for cavitation to enhance drug delivery without the need for high intensity ultrasound.
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Affiliation(s)
- Qiang Wu
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Victor Choi
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Luca Bau
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Dario Carugo
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, UK
| | - Nicholas D Evans
- Centre for Human Development, Stem Cells and Regenerative Medicine, Bone and Joint Research Group, University of Southampton, Southampton, UK; Bioengineering Sciences Group, Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Eleanor Stride
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK; Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, UK.
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121
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Lagowski M, Gouveia Z, Yang M, Finer Y, Santerre JP. Synthesis and challenges of fluorinated divinyl urethane monomers as a strategy for masking hydrolytic sensitive methacrylate groups in resin composites. Dent Mater 2024; 40:1624-1634. [PMID: 39084955 DOI: 10.1016/j.dental.2024.07.006] [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: 03/18/2024] [Revised: 07/15/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024]
Abstract
OBJECTIVE The biodegradation of methacrylate (MA)-based dental restoratives has been suggested to contribute to a loss of adhesion and subsequent detachment, or secondary caries, both major causes of restoration failure. Previous studies have demonstrated that intermolecular interactions between resin monomers may affect the hydrolytic-susceptibility of composites. Altering the intermolecular interactions by shielding or masking the hydrolytically-susceptible ester groups found in MA monomers could be an effective strategy to mitigate the biodegradation of resin composites. The objective of this work was to assess whether shielding/masking MAs using fluorinated groups could improve the biostability of experimental composites. METHODS Eight fluorinated monomers (FM) were synthesized, characterized (1H NMR), and formulated into experimental resin composites (FC, 65 wt%, microfill). FCs were assessed for interactions with water (water contact angle, water sorption, gel fraction), mechanical properties (both compressive and flexural strength and modulus), cytocompatibility, resistance to biodegradation using simulated human salivary esterase (SHSE) and compared to a control composite (CC) without FM. RESULTS Integration of FMs was found to generally decrease both the physical and mechanical properties under all incubation conditions when compared to the CC. Additionally, all FCs had a negative influence on composite biodegradation following immersion in SHSE when compared to the CC. SIGNIFICANCE Shielding/masking MA-esters inherently inserts molecular spaces between the polymer chains within the resin network, and shielding is likely not possible while also maintaining the necessary cohesive forces that regulate the physical and mechanical properties of resin composites. Novel dental resin development should seek to remove/replace vulnerable ester-containing MAs rather that adopting a shielding/masking approach.
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Affiliation(s)
- Michael Lagowski
- Institute of Biomedical Engineering, University of Toronto, Ontario, Canada
| | - Zach Gouveia
- Faculty of Dentistry, University of Toronto, Canada
| | - Meilin Yang
- Faculty of Dentistry, University of Toronto, Canada
| | - Yoav Finer
- Institute of Biomedical Engineering, University of Toronto, Ontario, Canada; Faculty of Dentistry, University of Toronto, Canada.
| | - J Paul Santerre
- Institute of Biomedical Engineering, University of Toronto, Ontario, Canada; Faculty of Dentistry, University of Toronto, Canada; Translational Biology and Engineering Program, University of Toronto, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Canada.
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122
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Zheng Z, Zhang Y, Xing J, Li X, Zhu Z, Ye M, Shen S, Xu RX. Combinatory electric-field-guided deposition for spatial microparticles patterning. Mater Today Bio 2024; 28:101207. [PMID: 39285943 PMCID: PMC11403263 DOI: 10.1016/j.mtbio.2024.101207] [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: 06/04/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/19/2024] Open
Abstract
Spatial deposition and patterning of microparticles are crucial in chemistry, medicine, and biology. Existing technologies like electric force manipulation, despite precise trajectory control, struggle with complex and personalized patterns. Key challenges include adjusting the quantity of particles deposited in different areas and accurately depositing particles in non-continuous patterns. Here, we present a rational process termed combinatory electric-field-guided deposition (CED) for achieving spatially regulated microparticle deposition on insulative substrates. This process involves coating the substrates with insulating materials like PVP and positioning it on a relief-patterned negative electrode. The negative electric field generated by the electrode attracts microparticles, while the positive surface charges on the substrates repel microparticles, resulting in the formation of a potential well over the electrode area. Consequently, this configuration enables precise control over microparticle deposition without the need for direct contact with the substrate's surface, simplifying the process of switching masks to meet varying microparticle deposition requirements. Furthermore, we demonstrate the customization of patterned microparticles on superhydrophobic coatings to regulate cell distribution, as well as the successful loading of drug-laden microparticles onto antibacterial bandages to match the areas of skin lesions. These applications underscore the versatility of CED across chemical, medical, and bioengineering domains.
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Affiliation(s)
- Zhiyuan Zheng
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Yang Zhang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
- Department of Rehabilitation Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Jinyu Xing
- Institute of Advanced Technology, University of Science and Technology of China, Hefei, 230026, China
| | - Xin Li
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
| | - Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Min Ye
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
| | - Shuwei Shen
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
| | - Ronald X Xu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
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123
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Shi J, Jiang J. CO 2/N 2 Triggered Aqueous Recyclable Surfactants for Biphasic Catalytic Reactions in the Pickering Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:20416-20427. [PMID: 39292966 DOI: 10.1021/acs.langmuir.4c01784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/20/2024]
Abstract
The utilization of Pickering emulsions in interfacial catalysis offers a promising environmental platform for biphasic reactions. However, complicated surface coating or chemical grafting methods are always required to prepare the surface-active catalysts for the Pickering emulsions, since most of them are commercially unavailable. Here, we report CO2-switchable Pickering emulsions for biphasic reactions, in which Pd@Al2O3 nanoparticles are in situ modified by a CO2/N2 responsive surfactant. Compared with the chemical grafted methods, the in situ formed Pickering interfacial catalysts avoid complex chemical modification. Furthermore, efficient demulsification and separation of the oil phase and the products without surfactant contaminations can be achieved by CO2 trigger. The Pickering interfacial catalysis system can also be reformed after the aqueous phase containing the catalyst nanoparticles, and the surfactant is recycled and reused. The strategy is universal for nitrobenzene reductions and alcohol oxidations, providing a convenient and green method for the preparation of Pickering catalysts with commercially available nanoparticles, efficient emulsion separation, and recovery of the catalyst nanoparticles and emulsifiers in various two-phase organic reactions.
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Affiliation(s)
- Jin Shi
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Jianzhong Jiang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
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124
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Tyowua AT, Harbottle D, Binks BP. 3D printing of Pickering emulsions, Pickering foams and capillary suspensions - A review of stabilization, rheology and applications. Adv Colloid Interface Sci 2024; 332:103274. [PMID: 39159542 DOI: 10.1016/j.cis.2024.103274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/11/2024] [Accepted: 08/05/2024] [Indexed: 08/21/2024]
Abstract
Pickering emulsions and foams as well as capillary suspensions are becoming increasingly more popular as inks for 3D printing. However, a lack of understanding of the bulk rheological properties needed for their application in 3D printing is potentially stifling growth in the area, hence the timeliness of this review. Herein, we review the stability and bulk rheology of these materials as well as the applications of their 3D-printed products. By highlighting how the bulk rheology is tuned, and specifically the inks storage modulus, yield stress and critical balance between the two, we present a rheological performance map showing regions where good prints and slumps are observed thus providing clear guidance for future ink formulations. To further advance this field, we also suggest standard experimental protocols for characterizing the bulk rheology of the three types of ink: capillary suspension, Pickering emulsion and Pickering foam for 3D printing by direct ink writing.
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Affiliation(s)
- Andrew T Tyowua
- Applied Colloid Science and Cosmeceutical Group, Department of Chemistry, Benue State University, PMB, 102119, Makurdi, Nigeria; School of Chemical Engineering, University of Birmingham, Edgbaston. B15 2TT. UK.
| | - David Harbottle
- School of Chemical and Process Engineering, University of Leeds, Leeds. LS2 9JT. UK
| | - Bernard P Binks
- Department of Chemistry, University of Hull, Hull. HU6 7RX. UK
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125
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Del Duca G, Parisi E, Artusio F, Calì E, Fraterrigo Garofalo S, Rosso C, Cauda V, Chierotti MR, Simone E. A crystal engineering approach for rational design of curcumin crystals for Pickering stabilization of emulsions. Food Res Int 2024; 194:114871. [PMID: 39232509 DOI: 10.1016/j.foodres.2024.114871] [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: 04/11/2024] [Revised: 07/10/2024] [Accepted: 08/05/2024] [Indexed: 09/06/2024]
Abstract
Emulsions stabilized via Pickering particles are becoming more and more popular due to their high stability and biocompatibility. Hence, developing new ways to produce effective Pickering particles is essential. In this work, we present a crystal engineering approach to obtain precise control over particle properties such as size, shape, and crystal structure, which may affect wettability and surface chemistry. A highly reproducible synthesis method via anti-solvent crystallization was developed to produce sub-micron sized curcumin crystals of the metastable form III, to be used as Pickering stabilizers. The produced crystals presented a clear hydrophobic nature, which was demonstrated by their preference to stabilize water-in-oil (W/O) emulsions. A comprehensive experimental and computational characterization of curcumin crystals was performed to rationalize their hydrophobic nature. Analytical techniques including Raman spectroscopy, powder X-ray diffraction (PXRD), Solid-State Nuclear Magnetic Resonance (SSNMR), scanning electron microscopy (SEM), Differential Scanning Calorimetry (DSC), confocal fluorescence microscopy and contact angle measurements were used to characterize curcumin particles in terms of shape, size and interfacial activity. The attachment energy model was instead applied to study relevant surface features of curcumin crystals, such as topology and facet-specific surface chemistry. This work contributes to the understanding of the effect of crystal properties on the mechanism of Pickering stabilization, and paves the way for the formulation of innovative products in fields ranging from pharmaceuticals to food science.
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Affiliation(s)
- Giulia Del Duca
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy
| | - Emmanuele Parisi
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy
| | - Fiora Artusio
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy
| | - Eleonora Calì
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy
| | | | - Chiara Rosso
- Department of Chemistry and NIS Centre, University of Torino, V. Giuria 7, 10125 Torino, Italy
| | - Valentina Cauda
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy
| | - Michele R Chierotti
- Department of Chemistry and NIS Centre, University of Torino, V. Giuria 7, 10125 Torino, Italy
| | - Elena Simone
- Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy.
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126
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Mathiesen JK, Ashberry HM, Pokratath R, Gamler JTL, Wang B, Kirsch A, Kjær ETS, Banerjee S, Jensen KMØ, Skrabalak SE. Why Colloidal Syntheses of Bimetallic Nanoparticles Cannot be Generalized. ACS NANO 2024; 18:26937-26947. [PMID: 39297869 DOI: 10.1021/acsnano.4c08835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/02/2024]
Abstract
Introducing one general synthesis to form bimetallic nanoparticles (NPs) could accelerate the discovery of NPs for promising energy applications. Although colloidal syntheses can provide precise structural and morphological control of bimetallic NPs, the complex chemical nature of multicomponent syntheses challenges the realization of such synthetic simplicity. Common synthetic issues are frequently ascribed to the variation in metal ion precursor reactivities and complex chemical interactions between the different metal surfaces and capping agents employed. However, no systematic studies have shown how these factors compete to ultimately assign the factor limiting the mixing and formation of bimetallic NPs. Here, we provide a parametric investigation of how the intrinsic standard reduction potentials (E0red) of the metal ions and cocapping agents influence the formation of bimetallic AuCu, AuPd, and PdCu NPs. Using a combination of in situ X-ray total scattering along with transmission electron microscopy and nuclear magnetic resonance spectroscopy, we illustrate the multifunctional role of the cocapping agents through interactions with both the metal ion precursors and NP surfaces to stabilize metastable structures. Additionally, we demonstrate how system-specific side reactions and the local metal ion coordination environment can be used to selectively tune the formation kinetics, structure, and morphology of bimetallic NPs. Ultimately, these insights show that the chemical interactions rather than the intrinsic E0red are responsible for the formation of bimetallic NPs. Broadly, these insights should aid the synthetic design of tailored multimetallic NPs.
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Affiliation(s)
- Jette K Mathiesen
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
| | - Hannah M Ashberry
- Department of Chemistry, Indiana University-Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Rohan Pokratath
- Department of Chemistry, University of Basel, Mattenstrasse 22, BPR 1096, Basel 4058, Switzerland
| | - Jocelyn T L Gamler
- Department of Chemistry, Indiana University-Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Baiyu Wang
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
| | - Andrea Kirsch
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
| | - Emil T S Kjær
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
| | - Soham Banerjee
- Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
| | - Kirsten M Ø Jensen
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
| | - Sara E Skrabalak
- Department of Chemistry, Indiana University-Bloomington, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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127
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Lei W, Chang S, Tian F, Zou X, Hu J, Qian S. Numerical simulation study on opening blood-brain barrier by ultrasonic cavitation. ULTRASONICS SONOCHEMISTRY 2024; 109:107005. [PMID: 39098097 PMCID: PMC11345312 DOI: 10.1016/j.ultsonch.2024.107005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/16/2024] [Accepted: 07/29/2024] [Indexed: 08/06/2024]
Abstract
Experimental studies have shown that ultrasonic cavitation can reversibly open the blood-brain barrier (BBB) to assist drug delivery. Nevertheless, the majority of the present study focused on experimental aspects of BBB opening. In this study, we developed a three-bubble-liquid-solid model to investigate the dynamic behavior of multiple bubbles within the blood vessels, and elucidate the physical mechanism of drug molecules through endothelial cells under ultrasonic cavitation excitation. The results showed that the large bubbles have a significant inhibitory effect on the movement of small bubbles, and the vibration morphology of intravascular microbubbles was affected by the acoustic parameters, microbubble size, and the distance between the microbubbles. The ultrasonic cavitation can significantly enhance the unidirectional flux of drug molecules, and the unidirectional flux growth rate of the wall can reach more than 5 %. Microjets and shock waves emitted from microbubbles generate different stress distribution patterns on the vascular wall, which in turn affects the pore size of the vessel wall and the permeability of drug molecules. The vibration morphology of microbubbles is related to the concentration, arrangement and scale of microbubbles, and the drug permeation impact can be enhanced by optimizing bubble size and acoustic parameters. The results offer an extensive depiction of the factors influencing the blood-brain barrier opening through ultrasonic cavitation, and the model may provide a potential technique to actively regulate the penetration capacity of drugs through endothelial layer of the neurovascular system by regulating BBB opening.
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Affiliation(s)
- Weirui Lei
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Shuai Chang
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Feng Tian
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
| | - Xiao Zou
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China.
| | - Jiwen Hu
- School of Mathematics and Physics, University of South China, Hengyang 421001, China.
| | - Shengyou Qian
- School of Physics and Electronics, Hunan Normal University, Changsha 410081, China.
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128
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Bueno-Mancebo J, Barrena R, Artola A, Gea T, Altmajer-Vaz D. Surfactin as an ingredient in cosmetic industry: Benefits and trends. Int J Cosmet Sci 2024; 46:702-716. [PMID: 38481065 DOI: 10.1111/ics.12957] [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: 06/10/2023] [Revised: 01/08/2024] [Accepted: 02/10/2024] [Indexed: 09/25/2024]
Abstract
Surfactin is a natural surfactant almost exclusively produced by Bacillus species with excellent physical-chemical, and biological properties. Among innovative applications, surfactin has been recently used as an ingredient in formulations. The antibacterial and anti-acne activities, as well as the anti-wrinkle, moisturizing, and cleansing features, are some of the reasons this lipopeptide is used in cosmetics. Considering the importance of biosurfactants in the world economy and sustainability, their potential properties for cosmetic and dermatological products, and the importance of patents for technological advancement in a circular bioeconomy system, the present study aims to review all patents involving surfactin as an ingredient in cosmetic formulas. This review was conducted through Espacenet, wherein patents containing the terms "cosmetic" and "surfactin" in their titles, abstracts, or claims were examined. Those patents that detailed a specific surfactin dosage within their formulations were selected for analysis. All patents, irrespective of their publication date, from October 1989 to December 2022, were considered. Additionally, a comprehensive search was performed in the MEDLINE and EMBASE databases, spanning from their inception until the year 2023. This complementary search aimed to enrich the understanding derived from patents, with a specific emphasis on surfactin, encompassing its associated advantages, efficacy, mechanisms of action on the skin, as well as aspects related to sustainability and its merits in cosmetic formulations. From the 105 patents analysed, 75% belong to Japan (54), China (14), and Korea (9). Most of them were submitted by Asian companies such as Showa Denko (15), Kaneka (11) and Kao Corporation (5). The formulations described are mainly emulsions, skincare, cleansing, and haircare, and the surfactin dose does not exceed 5%. Surfactin appears in different types of formulas worldwide and has a high tendency to be used. Surfactin and other biosurfactants are a promising alternative to chemical ingredients in cosmetic formulations, guaranteeing skin health benefits and minimizing the impact on the environment.
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Affiliation(s)
- Jose Bueno-Mancebo
- Composting Research Group, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Barcelona, Spain
- Chemical Engineering Department, Faculty of Science, University of Granada, Granada, Spain
| | - Raquel Barrena
- Composting Research Group, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Adriana Artola
- Composting Research Group, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Teresa Gea
- Composting Research Group, Departament d'Enginyeria Química, Biològica i Ambiental, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Deisi Altmajer-Vaz
- Chemical Engineering Department, Faculty of Science, University of Granada, Granada, Spain
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129
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Jeong J, Park T, Song J, Kang S, Won J, Han J, Min K. Integrating Data Mining and Natural Language Processing to Construct a Melting Point Database for Organometallic Compounds. J Chem Inf Model 2024. [PMID: 39352375 DOI: 10.1021/acs.jcim.4c01254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
As semiconductor devices are miniaturized, the importance of atomic layer deposition (ALD) technology is growing. When designing ALD precursors, it is important to consider the melting point, because the precursors should have melting points lower than the process temperature. However, obtaining melting point data is challenging due to experimental sensitivity and high computational costs. As a result, a comprehensive and well-organized database for the melting point of the OMCs has not been fully reported yet. Therefore, in this study, we constructed a database of melting points for 1,845 OMCs, including 58 metal and 6 metalloid elements. The database contains CAS numbers, molecular formulas, and structural information and was constructed through automatic extraction and systematic curation. The melting point information was extracted using two methods: 1) 1,434 materials from 11 chemical vendor databases and 2) 411 materials identified through natural language processing (NLP) techniques with an accuracy of 86.3%, based on 2,096 scientific papers published over the past 29 years. In our database, the OMCs contain up to around 250 atoms and have melting points that range from -170 to 1610 °C. The main source is the Chemsrc database, accounting for 607 materials (32.9%), and Fe is the most common central metal or metalloid element (15.0%), followed by Si (11.6%) and B (6.7%). To validate the utilization of the constructed database, a multimodal neural network model was developed integrating graph-based and feature-based information as descriptors to predict the melting points of the OMCs but moderate performance. We believe the current approach reduces the time and cost associated with hand-operated data collection and processing, contributing to effective screening of potentially promising ALD precursors and providing crucial information for the advancement of the semiconductor industry.
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Affiliation(s)
- Jinyoung Jeong
- School of Mechanical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| | - Taehyun Park
- School of Mechanical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| | - JunHo Song
- School of Mechanical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| | - Seungpyo Kang
- School of Mechanical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| | - Joonghee Won
- POC TU, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 16678, Republic of Korea
| | - Jungim Han
- POC TU, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 16678, Republic of Korea
| | - Kyoungmin Min
- School of Mechanical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
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130
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Gu J, Pan MH, Chiou YS, Wei S, Ding B. Enhanced stability of Pickering emulsions through co-stabilization with nanoliposomes and thermally denatured ovalbumin. Int J Biol Macromol 2024; 278:134561. [PMID: 39127283 DOI: 10.1016/j.ijbiomac.2024.134561] [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: 05/28/2024] [Revised: 07/29/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
Pickering emulsions were co-stabilized by nanoliposome (NL) and thermally denatured ovalbumin (DOVA) based on the induction of OVA with strong particle characteristics through thermal denaturation. DOVA-NL particles were spherical and their sizes were mainly distributed between 50 and 100 nm. The surface tension and interfacial tension of DOVA-NL were significantly reduced, and the surface hydrophobicity, amphiphilicity and free -SH content of DOVA were enhanced after complexation with NL. The content of α-helix and β-sheet in DOVA decreased, whereas the content of β-turn and random coil increased after complexation with NL. Hydrophobic interactions, hydrogen bonding and electrostatic forces played a vital role in the interactions between NL and DOVA, leading to conformational changes in DOVA. The number of binding sites between NL and DOVA was more than one, and the interaction between NL and DOVA was exothermic and spontaneous. The emulsification index showed that DOVA-NL-stabilized Pickering emulsions (DNPE) were significantly more stable than DOVA-stabilized emulsions. DOVA-NL particles adsorbed at the oil-water interface and the droplet size of DNPE was smaller than that of DOVA-stabilized emulsions. This study suggests that it may be an effective strategy to improve the stability of Pickering emulsions through co-stabilization with NL and DOVA.
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Affiliation(s)
- Jinhui Gu
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, PR China
| | - Min-Hsiung Pan
- Institute of Food Sciences and Technology, National Taiwan University, Taipei 10617, Taiwan, ROC
| | - Yi-Shiou Chiou
- College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan, ROC
| | - Shudong Wei
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, PR China
| | - Baomiao Ding
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, PR China.
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131
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Barros JMHF, Santos AA, Stadnik MJ, da Costa C. Encapsulation of eucalyptus and Litsea cubeba essential oils using zein nanopolymer: Preparation, characterization, storage stability, and antifungal evaluation. Int J Biol Macromol 2024; 278:134690. [PMID: 39142480 DOI: 10.1016/j.ijbiomac.2024.134690] [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: 05/24/2024] [Revised: 08/07/2024] [Accepted: 08/10/2024] [Indexed: 08/16/2024]
Abstract
The encapsulation of essential oils (EOs) in protein-based biopolymeric matrices stabilized with surfactant ensures protection and physical stability of the EO against unfavorable environmental conditions. Accordingly, this study prepared zein nanoparticles loaded with eucalyptus essential oil (Z-EEO) and Litsea cubeba essential oil (Z-LEO), stable and with antifungal activity against Colletotrichum lindemuthianum, responsible for substantial damage to bean crops. The nanoparticles were prepared by nanoprecipitation with the aid of ultrasound treatment and characterized. The nanoparticles exhibited a hydrodynamic diameter close to 200 nm and PDI < 0.3 for 120 days, demonstrating the physical stability of the carrier system. Scanning electron microscopy and Transmission electron microscopy revealed that the nanoparticles were smooth and uniformly distributed spheres. Fourier-transform infrared spectroscopy showed interaction between zein and EOs through hydrogen bonding and hydrophobic interactions. Thermogravimetric analysis demonstrated the thermal stability of the nanoparticles compared to pure bioactive compounds. The nanoparticles exhibited a dose-dependent effect in inhibiting the fungus in in vitro testing, with Z-EEO standing out by inhibiting 70.0 % of the mycelial growth of C. lindemuthianum. Therefore, the results showed that zein has great potential to encapsulate hydrophobic compounds, improving the applicability of the bioactive compound as a biofungicide, providing protection for the EO.
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Affiliation(s)
- José Marcelo Honório Ferreira Barros
- Federal University of Santa Catarina, Graduate Program in Engineering Chemistry, Department of Chemical and Food Engineering, Florianópolis, Santa Catarina, Brazil
| | - Alessandro Antônio Santos
- Federal University of Santa Catarina, Graduate Program in Plant Genetic Resources, Department of Plant Sciences, Florianópolis, Santa Catarina, Brazil
| | - Marciel João Stadnik
- Federal University of Santa Catarina, Graduate Program in Plant Genetic Resources, Department of Plant Sciences, Florianópolis, Santa Catarina, Brazil
| | - Cristiane da Costa
- Federal University of Santa Catarina, Graduate Program in Engineering Chemistry, Department of Chemical and Food Engineering, Florianópolis, Santa Catarina, Brazil; Federal University of Santa Catarina, Graduate Program in Textile Engineering, Department of Textile Engineering, Blumenau, Santa Catarina, Brazil.
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132
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Miranda MM, Miranda PHCD, Pinto Rodrigues AC, Pinto FG, Silva GH, Tronto J, Macedo WR. Enhancing garlic propagation through functional biopolymer-based propagules coatings: A bio-nanotechnological strategy. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109049. [PMID: 39151366 DOI: 10.1016/j.plaphy.2024.109049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 07/22/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Integrating agricultural, chemical, and technological knowledge is crucial for developing bio-nanotechnologies to improve agricultural production. This study explores the innovative use of biopolymeric coatings, based on sodium alginate and sodium alginate + Laponite® (nanoclay), containing biostimulants (tryptophol and thymol) or not, on garlic cloves. These coatings were analyzed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR-ATR), and scanning electron microscopy (SEM). Greenhouse bioassays showed improvements in garlic shoot plant biomass with both treatments: sodium alginate biopolymer and sodium alginate biopolymer plus Laponite®. In the field experiment, garlic plants treated with sodium alginate, in combination with conventional pesticide treatments, resulted in better quality garlic bulbs, where larger garlics were harvested in this treatment, reducing commercial losses. In tropical garlic crops, obtaining plants with greater initial vigor is essential. Our results highlight the potential of these bio-nanotechnological strategies to enhance garlic propagation, ensuring environmental protection and food security.
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Affiliation(s)
- Milena Malta Miranda
- Institute of Agricultural Sciences, Federal University of Viçosa, Campus Rio Paranaíba, MG 230 Rd, 38.810-000, Brazil
| | | | - Ana Cristina Pinto Rodrigues
- Institute of Agricultural Sciences, Federal University of Viçosa, Campus Rio Paranaíba, MG 230 Rd, 38.810-000, Brazil
| | - Frederico Garcia Pinto
- Institute of Exact Sciences, Federal University of Viçosa, Campus Rio Paranaíba, MG 230 Rd, 38.810-000, Brazil
| | - Geraldo Humberto Silva
- Institute of Exact Sciences, Federal University of Viçosa, Campus Rio Paranaíba, MG 230 Rd, 38.810-000, Brazil
| | - Jairo Tronto
- Institute of Exact Sciences, Federal University of Viçosa, Campus Rio Paranaíba, MG 230 Rd, 38.810-000, Brazil.
| | - Willian Rodrigues Macedo
- Coordenadoria Especial de Ciências Agrárias e Biológicas, Federal University of Santa Catarina, Campus Curitibanos, Ulysses Gaboardi Rd., Km 3, 89520-000, Brazil.
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133
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Dong C, d'Aquino AI, Sen S, Hall IA, Yu AC, Crane GB, Acosta JD, Appel EA. Water-Enhancing Gels Exhibiting Heat-Activated Formation of Silica Aerogels for Protection of Critical Infrastructure During Catastrophic Wildfire. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2407375. [PMID: 39169738 DOI: 10.1002/adma.202407375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/18/2024] [Indexed: 08/23/2024]
Abstract
A promising strategy to address the pressing challenges with wildfire, particularly in the wildland-urban interface (WUI), involves developing new approaches for preventing and controlling wildfire within wildlands. Among sprayable fire-retardant materials, water-enhancing gels have emerged as exceptionally effective for protecting civil infrastructure. They possess favorable wetting and viscoelastic properties that reduce the likelihood of ignition, maintaining strong adherence to a wide array of surfaces after application. Although current water-enhancing hydrogels effectively maintain surface wetness by creating a barricade, they rapidly desiccate and lose efficacy under high heat and wind typical of wildfire conditions. To address this limitation, unique biomimetic hydrogel materials from sustainable cellulosic polymers crosslinked by colloidal silica particles are developed that exhibit ideal viscoelastic properties and facile manufacturing. Under heat activation, the hydrogel transitions into a highly porous and thermally insulative silica aerogel coating in situ, providing a robust protective layer against ignition of substrates, even when the hydrogel fire suppressant becomes completely desiccated. By confirming the mechanical properties, substrate adherence, and enhanced substrate protection against fire, these heat-activatable biomimetic hydrogels emerge as promising candidates for next-generation water-enhancing fire suppressants. These advancements have the potential to dramatically improve the ability to protect homes and critical infrastructure during wildfire.
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Affiliation(s)
- Changxin Dong
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Andrea I d'Aquino
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Samya Sen
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Ian A Hall
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Anthony C Yu
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Gabriel B Crane
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Jesse D Acosta
- Department of Natural Resource Management & Environmental Sciences, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Eric A Appel
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
- Stanford ChEM-H Institute, Stanford University, Stanford, CA, 94305, USA
- Woods Institute for the Environment, Stanford University, Stanford, CA, 94305, USA
- Department of Pediatrics-Endocrinology, Stanford University School of Medicine, Stanford, CA, 94305, USA
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134
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Fernández-Martínez R, Rodríguez-Tapiador MI, Roteta M, Pérez-Cadenas M, Del Rosario G, Pedrós J, Rucandio I. Carbon-based thin films as a suitable alternative to metallized films for the preparation of radioactive sources. Appl Radiat Isot 2024; 212:111419. [PMID: 39002294 DOI: 10.1016/j.apradiso.2024.111419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 07/15/2024]
Abstract
A new method for radionuclide labeling by the use of graphene thin films was previously presented. In this work, a comparison among low energy radioactive sources supported on carbonaceous thin films on polyvinyl chloride-polyvinyl acetate copolymer (VYNS), based on the use of aqueous solutions is investigated as a feasible alternative to the traditional metallized films avoiding the downside of the loss of many broken films. Graphene-based materials were prepared by both oxidation-exfoliation-reduction and direct graphite exfoliation routes. In addition, multiwalled carbon nanotubes (MWCNTs) thin films were also evaluated. The stability of both carbonaceous materials aqueous dispersions were studied by using ionic and non-ionic surfactants. Solid carbon-based materials were characterized by X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) whereas the colloidal nature of the aqueous dispersions was verified by the measurement of Tyndall effect and the morphology of thin films was evaluated by Scanning Electron Microscopy (SEM). 55Fe solutions were used to prepare the radioactive sources on the thin films by quantitative drop deposition. The quality of spectra was measured in a pressurized proportional counter. Results showed a resolution higher than 0.9 keV for all the tested sources. However, MWCNT-based along with non-surfactant sources presented non-adequate escape peaks and low energy tails. On the contrary, all the graphene-based sources prepared using surfactants to stabilize aqueous solutions presented an energy resolution comparable to that of the metallized source while offering notable advantages in terms of cost efficiency and reliability of the as-prepared supports.
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Affiliation(s)
- Rodolfo Fernández-Martínez
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) (Spain), Av. Complutense 40, Madrid, 28040, Spain.
| | - Mª Isabel Rodríguez-Tapiador
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) (Spain), Av. Complutense 40, Madrid, 28040, Spain
| | - Miguel Roteta
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) (Spain), Av. Complutense 40, Madrid, 28040, Spain
| | - María Pérez-Cadenas
- Dept. Química Inorgánica y Química Técnica, Facultad de Ciencias, UNED, Av. Esparta S/n, Las Rozas, 28232, Madrid, Spain
| | | | - Jorge Pedrós
- Instituto de Sistemas Optoeléctronicos y Microtecnología & Departamento de Ingeniería Electrónica, E.T.S.I. de Telecomunicación, Universidad Politécnica de Madrid, Av. Complutense 30, Madrid, 28040, Spain
| | - Isabel Rucandio
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) (Spain), Av. Complutense 40, Madrid, 28040, Spain
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135
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Wang Z, Yu X, Song L, Jiao J, Prakash S, Dong X. Encapsulation of β-carotene in gelatin-gum Arabic-sodium carboxymethylcellulose complex coacervates: Enhancing surimi gel properties and exploring 3D printing potential. Int J Biol Macromol 2024; 278:134129. [PMID: 39069046 DOI: 10.1016/j.ijbiomac.2024.134129] [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: 03/21/2024] [Revised: 07/20/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
This study investigates the utilization of functional additives (β-carotene microcapsules) and 3D printing technology for the production of innovative surimi products. The β-carotene microcapsules were prepared using different ratios of gelatin (Ge), gum Arabic (Ara), and carboxymethylcellulose sodium (CMC). Among these ratios, the ratio of 5:5:1 (Ge:Ara:CMC) resulted in more stable microcapsules spherical structures and better environmental stability. Subsequently, different concentrations (5-20 %) of the obtained β-carotene microcapsules were added to surimi samples. As the concentration increased, there was an improvement in the gel strength of the surimi. However, no significant changes were observed when the concentration was 15 % (p > 0.05). All samples exhibited shear thinning behavior. The addition of microcapsules improved the resilience and thixotropy of surimi, making it more suitable for 3D printing applications. The inclusion of β-carotene microcapsules in surimi products not only meets the nutritional needs of consumers, but also provides valuable insights for the development of functional surimi products.
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Affiliation(s)
- Zheming Wang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, Dalian Technology Innovation Center for Chinese Prepared Food, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xiliang Yu
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, Dalian Technology Innovation Center for Chinese Prepared Food, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Liang Song
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, Dalian Technology Innovation Center for Chinese Prepared Food, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Jian Jiao
- Beijing Tong Ren Tang Health (Dalian) Seafoods Co., Ltd., Dalian 116034, Liaoning, China
| | - Sangeeta Prakash
- School of Agriculture and Food Sustainability, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Xiuping Dong
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, Dalian Technology Innovation Center for Chinese Prepared Food, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Academy of Food Interdisciplinary Science, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
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136
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Fischer J, Porcar L, Cabral JT, Sottmann T. Using an amphiphilic diblock copolymer to understand the shear-induced structural transformation of bicontinuous microemulsions. J Colloid Interface Sci 2024; 671:124-133. [PMID: 38795533 DOI: 10.1016/j.jcis.2024.05.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/07/2024] [Accepted: 05/14/2024] [Indexed: 05/28/2024]
Abstract
HYPOTHESIS Amphiphilic diblock copolymers are known to increase the surfactant's efficiency to stabilize microemulsion, leading to higher structural order and monolayer rigidity. We thus seek to evaluate whether the addition of such polymers alters the shear behavior of bicontinuous microemulsions, in particular, their shear transformation towards lamellar structures. EXPERIMENTS We examine the initial structure and shear response of bicontinuous /n-octane//PEP5-b-PEO5 microemulsions by coupling microfluidics with small-angle neutron scattering (SANS), attaining wall shear rates in excess of . The azimuthal analysis of the obtained 2D scattering patterns allows us to follow their structural transformation by means of the degree of anisotropy. FINDINGS The amphiphilic diblock copolymer promotes the shear-induced transformation of bicontinuous microemulsions, resulting in up to ∼ higher degrees of anisotropy than for corresponding polymer-free microemulsions. The increased shear response observed with increasing polymer content is rationalized by combining the influence of domain size and viscosity with the stability limits of the bicontinuous microemulsion in the isothermal phase diagram. As a result, a consistent description of the degree of anisotropy is obtained, enabling the prediction of the shear-induced bicontinuous-to-lamellar transformation.
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Affiliation(s)
- Julian Fischer
- Instiute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Lionel Porcar
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble CEDEX 9, France
| | - João T Cabral
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Thomas Sottmann
- Instiute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
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137
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Zhao X, Jiang F, Fang J, Xu X, Chen F, Weng H, Xiao Q, Yang Q, Lin Y, Xiao A. Structure, characterization, and application of a novel thermoreversible emulsion gel fabricated by citrate agar. Int J Biol Macromol 2024; 277:134181. [PMID: 39074711 DOI: 10.1016/j.ijbiomac.2024.134181] [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: 05/27/2024] [Revised: 07/14/2024] [Accepted: 07/24/2024] [Indexed: 07/31/2024]
Abstract
A novel thermoreversible emulsion gel was successfully prepared with citrate agar (CA) as the sole emulsifier. Compared with native agar gel emulsion, CA gel emulsion (CAGE) formed a stable emulsion gel when the CA concentration was increased to 1.25 % (w/w). Results of time-temperature scanning experiments showed that the emulsion gel rapidly transformed into liquid emulsion when heated to 40-50 °C and then solidified into emulsion gel after cooling to the critical temperature of solidification. The emulsion gel had stable sol-gel transformation ability after seven cycles repeated heating-cooling treatment (HCT) at 85 °C and 4 °C. However, the stability of emulsion gels gradually decreased because of the large-droplet formation during heating, which affected the CA molecular-reconfiguration network structure in cooling. The conjunction analysis of microstructure and properties of the emulsion gel indicated that its stability depended primarily on the spatial repulsion and electrostatic repulsion provided by CA gel, and the main factor driving thermal reversibility was the temperature-responsive gelation performance of CA. The retention of quercetin was >90.23 % after seven HCTs because CAGEG enhanced the homogeneity and stability of the droplets.
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Affiliation(s)
- Xiaoyan Zhao
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China
| | - Feng Jiang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China
| | - Jingjing Fang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China
| | - Xinwei Xu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China
| | - Fuquan Chen
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, PR China
| | - Huifen Weng
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, PR China
| | - Qiong Xiao
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, PR China
| | - Qiuming Yang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, PR China
| | - Yan Lin
- Chengyi College, Jimei University, Xiamen 361021, PR China.
| | - Anfeng Xiao
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, PR China; National R&D Center for Red Alga Processing Technology, Xiamen 361021, PR China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, PR China; Xiamen Key Laboratory of Marine Functional Food, Xiamen 361021, PR China.
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138
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Othmeni I, Karoui R, Blecker C. Impact of pH on the structure, interfacial and foaming properties of pea protein isolate: Investigation of the structure - Function relationship. Int J Biol Macromol 2024; 278:134818. [PMID: 39154679 DOI: 10.1016/j.ijbiomac.2024.134818] [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: 06/17/2024] [Revised: 08/03/2024] [Accepted: 08/14/2024] [Indexed: 08/20/2024]
Abstract
This study explored the relationship between pea protein foaming properties and their structure and physicochemical properties under neutral and acidic pH. Results showed that pH modified the zeta potential, particle size and surface tension due to electrostatic changes. FT-MIR and fluorescence spectra revealed pH-induced conformational changes, exposing hydrophobic groups and increasing sulfhydryl content, promoting protein aggregation. At pH 3, the highest foaming capacity (1.273) and lowest foam expansion (6.967) were observed, associated with increased surface hydrophobicity and net charges, ideal for creating light foams with high liquid incorporation for acidic beverages or fruit-based mousses. Pea protein isolate generated stable foams with foam volume stability between 86.662 % and 94.255 %. Although neutral pH conditions showed the highest foam volume stability, their air bubbles increased in size and transitioned from spherical to polyhedral shape, suitable for visual-centric applications, like cappuccino foam and beer-head retention. Foams at pH 5 exhibited the smallest bubbles and maintained their spherical shape, enhancing drainage resistance, beneficial for whipped toppings. Strong correlations (Pearson correlation coefficient higher than 0.600) were noted between the structure, surface and foaming properties, providing crucial insights into optimizing pea protein functionality across various pH conditions, enabling the development of plant-based foamed products with tailored properties.
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Affiliation(s)
- Ines Othmeni
- Univ. Artois, Univ. Lille, Univ. Littoral Côte d'Opale, Univ. Picardie Jules Verne, Univ. Liège, INRAE, Junia, UMR-T 1158, BioEcoAgro, F-62300 Lens, France; Gembloux Agro-Bio Tech, Department of Food Science and Formulation, University of Liège, B-5030 Gembloux, Belgium; Cosucra Groupe Warcoing S.A., B-7040 Warcoing, Belgium.
| | - Romdhane Karoui
- Univ. Artois, Univ. Lille, Univ. Littoral Côte d'Opale, Univ. Picardie Jules Verne, Univ. Liège, INRAE, Junia, UMR-T 1158, BioEcoAgro, F-62300 Lens, France.
| | - Christophe Blecker
- Gembloux Agro-Bio Tech, Department of Food Science and Formulation, University of Liège, B-5030 Gembloux, Belgium
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139
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Kwon H, Du Z, Li Y. AlphaFold 2-based stacking model for protein solubility prediction and its transferability on seed storage proteins. Int J Biol Macromol 2024; 278:134601. [PMID: 39137857 DOI: 10.1016/j.ijbiomac.2024.134601] [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: 05/07/2024] [Revised: 07/29/2024] [Accepted: 08/07/2024] [Indexed: 08/15/2024]
Abstract
Accurate protein solubility prediction is crucial in screening suitable candidates for food application. Existing models often rely only on sequences, overlooking important structural details. In this study, a regression model for protein solubility was developed using both the sequences and predicted structures of 2983 E. coli proteins. The sequence and structural level properties of the proteins were bioinformatically extracted and subjected to multilayer perceptron (MLP). Moreover, residue level features and contact maps were utilized to construct a graph convolutional network (GCN). The out-of-fold predictions of the two models were combined and fed into multiple meta-regressors to create a stacking model. The stacking model with support vector regressor (SVR) achieved R2 of 0.502 and 0.468 on test and external validation datasets, respectively, displaying higher performance compared to existing regression models. Based on the improved performance compared to its based models, the stacking model effectively captured the strength of its base models as well as the significance of the different features used. Furthermore, the model's transferability was indirectly validated on a dataset of seed storage proteins using Osborne definition as well as on a case study using molecular dynamic simulation, showing potential for application beyond microbial proteins to food and agriculture-related ones.
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Affiliation(s)
- Hyukjin Kwon
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506, USA
| | - Zhenjiao Du
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506, USA
| | - Yonghui Li
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506, USA.
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140
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Guo Y, Zhao Q, Li T, Mao Q. Masticatory simulators based on oral physiology in food research: A systematic review. J Texture Stud 2024; 55:e12864. [PMID: 39233393 DOI: 10.1111/jtxs.12864] [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: 04/06/2024] [Revised: 07/14/2024] [Accepted: 07/27/2024] [Indexed: 09/06/2024]
Abstract
A masticatory simulator is a mechanical device that mimics the physiological structures of the human oral cavity, chewing movement system, and functions. The advantage of this device lies in real-time tracking and analysis of food boluses within a sealed oral space, offering a direct validation platform for food experiments without constraints related to time, space, and individual variations. The degree to which the masticatory simulator simulates physiological structures reflects its efficacy in replicating oral physiological processes. This review mainly discusses the physiological structures of the oral cavity, the simulation of biomimetic components, and the development, feasibility assessment, applications, and prospects of masticatory simulators in food. The highlight of this review is the analogy of biomimetic component designs in masticatory simulators over the past 15 years. It summarizes the limitations of masticatory simulators and their biomimetic components, proposing potential directions for future development. The purpose of this review is to assist readers in understanding the research progress and latest literature findings on masticatory simulators while also offering insights into the design and innovation of masticatory simulators.
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Affiliation(s)
- Yifei Guo
- Department of Food Science and Engineering, College of Light Industry, Liaoning University, Shenyang, China
- Hainan University-HSF/LWL Collaborative Innovation Laboratory, College of Food Sciences & Engineering, Hainan University, Haikou, China
| | - Qi Zhao
- Department of Information, College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, China
| | - Tiejing Li
- Department of Food Science and Engineering, College of Light Industry, Liaoning University, Shenyang, China
| | - Qian Mao
- Department of Food Science and Engineering, College of Light Industry, Liaoning University, Shenyang, China
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141
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Xie X, Zhang B, Zhang B, Zhu H, Qi L, Xu C, Cheng L, Ai Z, Shi Q. Effect of γ-polyglutamic acid on the physicochemical properties of soybean protein isolate-stabilized O/W emulsion. FOOD SCI TECHNOL INT 2024; 30:671-679. [PMID: 36862597 DOI: 10.1177/10820132231158278] [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: 03/03/2023]
Abstract
An increased interest has been observed in the application of soybean protein isolate (SPI) into O/W emulsion because of the amphipathic characteristics of SPI. However, at pH around 4.5, SPI was almost lost its hydrophilic characteristic, thus greatly limiting its application in emulsion under an acidic environment. Therefore, this drawback of SPI needs to be urgently solved. This study aims to investigate the effect of γ-polyglutamic acid (γ-PGA) on physicochemical properties of SPI-stabilized O/W emulsion. The results suggested that the interaction between γ-PGA and SPI improved the SPI solubility in solution, and increased emulsifying properties of SPI in the pH range of 4.0-5.0 via electrostatic interaction. Meanwhile, the charge neutralisation between SPI emulsions with γ-PGA was confirmed via ζ-potentiometry. With the presence of γ-PGA in emulsion at pH 4.0 and 5.0, the electrostatic complexation between SPI and anionic γ-PGA exhibited decreased the viscosity of SPI emulsion, which might be related to the phenomenon as indicated by the confocal laser scanning microscope measurements. Therefore, the electrostatic complexation between SPI and γ-PGA suggested that the promising potential of γ-PGA to be used in SPI-stabilized O/W emulsion under an acidic environment.
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Affiliation(s)
- Xinhua Xie
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Bei Zhang
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Bobo Zhang
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Hongshuai Zhu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Lei Qi
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Chao Xu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Lilin Cheng
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Zhilu Ai
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Qingshan Shi
- Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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142
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Serrano GP, Echavarría CF, Mejias SH. Development of artificial photosystems based on designed proteins for mechanistic insights into photosynthesis. Protein Sci 2024; 33:e5164. [PMID: 39276008 PMCID: PMC11400635 DOI: 10.1002/pro.5164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 08/14/2024] [Accepted: 08/19/2024] [Indexed: 09/16/2024]
Abstract
This review aims to provide an overview of the progress in protein-based artificial photosystem design and their potential to uncover the underlying principles governing light-harvesting in photosynthesis. While significant advances have been made in this area, a gap persists in reviewing these advances. This review provides a perspective of the field, pinpointing knowledge gaps and unresolved challenges that warrant further inquiry. In particular, it delves into the key considerations when designing photosystems based on the chromophore and protein scaffold characteristics, presents the established strategies for artificial photosystems engineering with their advantages and disadvantages, and underscores the recent breakthroughs in understanding the molecular mechanisms governing light-harvesting, charge separation, and the role of the protein motions in the chromophore's excited state relaxation. By disseminating this knowledge, this article provides a foundational resource for defining the field of bio-hybrid photosystems and aims to inspire the continued exploration of artificial photosystems using protein design.
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Affiliation(s)
- Gonzalo Pérez Serrano
- Madrid Institute for Advanced Studies (IMDEA‐Nanoscience)Ciudad Universitaria de CantoblancoMadridSpain
| | - Claudia F. Echavarría
- Madrid Institute for Advanced Studies (IMDEA‐Nanoscience)Ciudad Universitaria de CantoblancoMadridSpain
| | - Sara H. Mejias
- Madrid Institute for Advanced Studies (IMDEA‐Nanoscience)Ciudad Universitaria de CantoblancoMadridSpain
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143
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Soe HMSH, Loftsson T, Jansook P. The application of cyclodextrins in drug solubilization and stabilization of nanoparticles for drug delivery and biomedical applications. Int J Pharm 2024:124787. [PMID: 39362296 DOI: 10.1016/j.ijpharm.2024.124787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2024] [Revised: 09/27/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
Nanoparticles (NPs) have gained significant attention in recent years due to their potential applications in pharmaceutical formulations, drug delivery systems, and various biomedical fields. The versatility of colloidal NPs, including their ability to be tailored with various components and synthesis methods, enables drug delivery systems to achieve controlled release patterns, improved solubility, and increased bioavailability. The review discusses various types of NPs, such as nanocrystals, lipid-based NPs, and inorganic NPs (i.e., gold, silver, magnetic NPs), each offering unique advantages for drug delivery. Despite the promising potential of NPs, challenges such as physical instability and the need for surface stabilization remain. Strategies to overcome these challenges include the use of surfactants, polymers, and cyclodextrins (CDs). This review highlights the role of CDs in stabilizing colloidal NPs and enhancing drug solubility. The combination of CDs with NPs presents a synergistic approach that enhances drug delivery and broadens the range of biomedical applications. Additionally, the potential of CDs to enhance the stability and therapeutic efficacy of colloidal NPs, making them promising candidates for advanced drug delivery systems, is comprehensively reviewed.
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Affiliation(s)
| | - Thorsteinn Loftsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
| | - Phatsawee Jansook
- Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phyathai Road, Pathumwan, Bangkok 10330, Thailand; Cyclodextrin Application and Nanotechnology-based Delivery Systems Research Unit, Chulalongkorn University, Bangkok 10330, Thailand.
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144
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Chen Z, Shen R, Xie J, Zeng Y, Wang K, Zhao L, Liu X, Hu Z. Multi-frequency ultrasonic-assisted enzymatic extraction of coconut paring oil from coconut by-products: Impact on the yield, physicochemical properties, and emulsion stability. ULTRASONICS SONOCHEMISTRY 2024; 109:106996. [PMID: 39032371 PMCID: PMC11325078 DOI: 10.1016/j.ultsonch.2024.106996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Abstract
Extraction of coconut paring oil (CPO) from processing by-products adds value to the product and reduces resource wastage. This study aims to assess the impact of 20 kHz, 20/80 kHz and 20/40/80 kHz of multi-frequency ultrasonic-assisted enzymatic extraction (MFUAEE) on the yield, physicochemical properties, fatty acid composition, total phenolic content, antioxidant activity, and emulsion stability of CPO derived from wet coconut parings (WCP). Results revealed that the CPO extraction yield with MFUAEE was 32.58 % - 43.31 % higher compared to AEE. The tri-frequency 20/40/80 kHz mode of multi-frequency ultrasound pretreatment exhibited the highest CPO extraction yield (70.08 %). The oil extracted through MFUAEE displayed similar fatty acid profiles to AEE, but had lower peroxide value, K232 and K270 values. Particularly, MFUAEE oil contained higher total phenolic content and exhibited potent DPPH free radical scavenging capacity. Results observed by SEM indicated that the pretreatment with multi-frequency ultrasound more efficiently disrupts the cellular structure of the WCP. Additionally, MFUAEE enhanced emulsion stability through the cavitation effect of ultrasound. These findings suggest that MFUAEE is a valuable approach for method for obtaining CPO with elevated extraction yield and superior quality, thereby enhancing the utilization of coconut by-products.
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Affiliation(s)
- Ziyi Chen
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Runni Shen
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Jiali Xie
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Yu Zeng
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Kai Wang
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Lei Zhao
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Xuwei Liu
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China.
| | - Zhuoyan Hu
- College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China.
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145
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Ghate MM, Gulati K, Poluri KM. Alginate binding enhances the structural stability and potentiates the lytic activity of bacteriophage endolysin's partially folded conformation. Arch Biochem Biophys 2024; 760:110129. [PMID: 39159898 DOI: 10.1016/j.abb.2024.110129] [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: 05/23/2024] [Revised: 08/15/2024] [Accepted: 08/16/2024] [Indexed: 08/21/2024]
Abstract
Polysaccharide polymers are increasingly being used as chaperon-like macromolecules in assisting protein folding of unfolded protein molecules. They interact with unfolded or partially folded proteins in a charge and conformation specific manner that results in the formation of stable protein-polysaccharide complexes. In most of the cases, the complex formation of protein-polysaccharide is driven via non-covalent interactions that have found to endorse the activity of proteins. T4L (18.7 kDa) and T7L (17 kDa) endolysins belong to the hydrolase and amidase class of peptidoglycan degrading enzymes. Both T4L and T7L exist in partially folded forms and are devoid of lytic activity at low pH conditions. In the current study, we assessed the binding of alginate with T4L and T7L at pH 7 and 3 using variety of biophysical and biochemical techniques. Spectroscopic studies revealed differential structural modulations of partially folded T4L and T7L upon their interaction with alginate. Further, the complex formation of alginate with partially folded T4L/T7L was confirmed by ITC and STEM. Additionally, the formed complexes of alginate with both T4L/T7L PF endolysins were found to be chemically and enzymatically stable. Moreover, such complexes were also marked with differential enhancement in their lytic activities at acidic pH conditions. This implied the potency of alginate as an excellent choice of matrix to preserve the structural and functional integrity of partially folded forms of T4L and T7L at highly acidic conditions.
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Affiliation(s)
- Mayur Mohan Ghate
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
| | - Khushboo Gulati
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India
| | - Krishna Mohan Poluri
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India; Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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146
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Lei YC, Zhou J, Zhou W, Wang Y, Zhang M, Zhang A, Wang L. Advanced development of anion-exchange membrane electrolyzers for hydrogen production: from anion-exchange membranes to membrane electrode assemblies. Chem Commun (Camb) 2024; 60:11000-11016. [PMID: 39262314 DOI: 10.1039/d4cc03043e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
Anion-exchange membrane water electrolysis (AEMWE) has attracted attention owing to its operation in alkaline environments, which offers the advantage of not requiring the use of precious metals. Additionally, AEMWE exhibits higher kinetics in the hydrogen evolution reaction, enabling higher hydrogen production efficiency. The anion-exchange membrane (AEM) fabrication, catalyst design, and membrane electrode assembly (MEA) are crucial for enhancing the total water electrolysis performance. There is an urgent need to summarize the advances in the development of AEMWE to pave the way for the commercialization of AEMWE. In this review, first, the fundamental principles of AEMWE technology are introduced. Second, the optimization of AEM with high ion conductivity and high stability through innovative synthetic methods are discussed in detail. Third, the designs of catalysts to increase the reaction rates by regulating the OH-adsorption environment and relieving OH blockage are introduced. Last but not least, a systematic summary of the concepts of 3D-ordered MEA, 3D-unified MEA, and 3D-self-supported MEA is presented. This review would be helpful to enhance the overall performance of AEMWE and promote the development of green hydrogen energy.
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Affiliation(s)
- Yun Chao Lei
- College of Electronic and Optical Engineering, Institute of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, Jiangsu, P. R. China.
| | - Jiayang Zhou
- College of Electronic and Optical Engineering, Institute of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, Jiangsu, P. R. China.
| | - Wentao Zhou
- College of Electronic and Optical Engineering, Institute of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, Jiangsu, P. R. China.
| | - Yan Wang
- College of Electronic and Optical Engineering, Institute of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, Jiangsu, P. R. China.
| | - Mengyang Zhang
- College of Electronic and Optical Engineering, Institute of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, Jiangsu, P. R. China.
| | - Anlei Zhang
- College of Science, Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, Jiangsu, P. R. China.
| | - Longlu Wang
- College of Electronic and Optical Engineering, Institute of Flexible Electronics (Future Technology), Nanjing University of Posts & Telecommunications (NJUPT), Nanjing 210023, Jiangsu, P. R. China.
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147
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Ariga K. Interface-Interactive Nanoarchitectonics: Solid and/or Liquid. Chemphyschem 2024; 25:e202400596. [PMID: 38965042 DOI: 10.1002/cphc.202400596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/06/2024]
Abstract
The methodology of nanoarchitectonics is to construct functional materials using nanounits such as atoms, molecules, and nanoobjects, just like architecting buildings. Nanoarchitectonics pursues the ultimate concept of materials science through the integration of related fields. In this review paper, under the title of interface-interactive nanoarchitectonics, several examples of structure fabrication and function development at interfaces will be discussed, highlighting the importance of architecting materials with nanoscale considerations. Two sections provide some examples at the solid and liquid surfaces. In solid interfacial environments, molecular structures can be precisely observed and analyzed with theoretical calculations. Solid surfaces are a prime site for nanoarchitectonics at the molecular level. Nanoarchitectonics of solid surfaces has the potential to pave the way for cutting-edge functionality and science based on advanced observation and analysis. Liquid surfaces are more kinetic and dynamic than solid interfaces, and their high fluidity offers many possibilities for structure fabrications by nanoarchitectonics. The latter feature has advantages in terms of freedom of interaction and diversity of components, therefore, liquid surfaces may be more suitable environments for the development of functionalities. The final section then discusses what is needed for the future of material creation in nanoarchitectonics.
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Affiliation(s)
- Katsuhiko Ariga
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, 277-8561, Japan
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148
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Yang F, Wang Y, He H, Wang G, Yang M, Hong M, Huang J, Wang Y. Construction of highly stable, monodisperse water-in-water Pickering emulsions with full particle coverage using a composite system of microfluidics and helical coiled tube. Colloids Surf B Biointerfaces 2024; 242:114079. [PMID: 39029247 DOI: 10.1016/j.colsurfb.2024.114079] [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: 03/20/2024] [Revised: 06/23/2024] [Accepted: 07/05/2024] [Indexed: 07/21/2024]
Abstract
Water-in-water (W/W) Pickering emulsions, exhibit considerable potential in the food and pharmaceutical fields owing to their compartmentalization and high biocompatibility. However, constrained by the non-uniform distribution of shear forces during emulsification or the spatial obstruction in polydimethylsiloxane (PDMS) passive microfluidic platform, the existing methods cannot generate monodisperse W/W Pickering emulsions with high particle coverage rate, thereby limiting their applications. Herein, a novel microfluidic system is designed for the preparation of monodisperse and highly particle-covered W/W Pickering emulsions under mild conditions. pH-responsive Polyethylene glycol (PEG)/phosphate aqueous two-phase system (ATPS) is used for the emulsions' preparation. Notably, a coverage rate of 96 ± 3 % is obtained by adjusting the length of the helical coiled tube, as well as the size and contact angle of genipin cross-linked BSA (BSA-GP) particles. Moreover, these W/W Pickering emulsions, with surfaces almost completely covered, can maintain monodisperse (Ncoal = 1.18 ± 0.03) for one day. Furthermore, the results of ranitidine hydrochloride (RH) release demonstrated that the drug release rate of W/W Pickering emulsions in the simulated gastric fluid (SGF) was 10 times faster than that in the neutral solution. We believe that the highly particle-covered monodisperse W/W Pickering emulsions possess great potential applications in bioencapsulation for foods and drug delivery.
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Affiliation(s)
- Feng Yang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Yilan Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Huatao He
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Guanxiong Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Menghan Yang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Meiying Hong
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Jin Huang
- Southwest Univ, Sch Chem & Chem Engn, Chongqing Key Lab Soft Matter Mat Chem & Funct Mfg, Chongqing 400715, PR China; Southwest Univ, State Key Lab Silkworm Genome Biol, Chongqing 400715, PR China.
| | - Yaolei Wang
- School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China.
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149
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Dursun Capar T, Yalcin H. Conjugation prepared by wet-Maillard reactions improves the stability and properties of lutein and lycopene loaded nanoparticles. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2024; 61:2008-2019. [PMID: 39285990 PMCID: PMC11401807 DOI: 10.1007/s13197-024-05976-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 09/19/2024]
Abstract
In this study, lutein and lycopene were encapsulated in plant protein (faba bean protein concentrate, (FPC))-carrageenan (Car) conjugates prepared by Maillard reaction in an aqueous media. The conjugation improved encapsulation yield that reached to 82.69% and 93.07%, for lycopene and lutein, respectively. The mean particle diameters for lutein loaded nanoparticles observed smaller in FPC-Car conjugates (66.60 nm) than FPC (71.49 nm). Scanning electron microscopy images showed that FPC-Car conjugates were more spherical and no fractures or fissures on the surface, revealing that wall materials provided better protection and retention for core materials. The diameter of lycopene nanoparticles coated with FPC remained constant between pH 3-4 and 7-9 but increased to 220 nm at pH 4-6. Even though the diameter of lutein nanoparticles coated with FPC remains steady between pH 5 and 9, increased to 953 nm at pH 3. The bioaccessibility of the lutein or lycopene samples encapsulated by FPC were found as higher than FPC-Car conjugates. These findings suggest that protein-polysaccharide conjugates could be used as a wall material to encapsulate lipophilic lutein and lycopene in order to improve their stability, property and bioaccessibility. As a result, FPC-Car conjugates may be an alternative for the formation of functional beverages as well as other nutraceutical products. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s13197-024-05976-4.
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Affiliation(s)
- Tugba Dursun Capar
- Food Engineering Department, Engineering Faculty, Erciyes University, Kayseri, Turkey
| | - Hasan Yalcin
- Food Engineering Department, Engineering Faculty, Erciyes University, Kayseri, Turkey
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150
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Ahmad M, Bushra R, Ritzoulis C. Pectin-mucin interactions: Insights from fluorimetry, thermodynamics and dual (static and dynamic) quenching mechanisms. Int J Biol Macromol 2024; 277:134564. [PMID: 39116979 DOI: 10.1016/j.ijbiomac.2024.134564] [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: 03/26/2024] [Revised: 08/05/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Binary systems of citrus peel pectin (a major food carbohydrate) and mucin (a principal oral-gastrointestinal glycoprotein) are studied, as to understand the interactions and thermodynamics between food and biofluids during oral processing and digestion. The fluorimetry emission spectra of mucin were quenched by pectin addition at 293, 301, 310 and 318 K, indicating direct contact between the two macromolecular populations. A red shift, suggesting pectin-induced alterations on mucin conformation, has been observed at 318 K. Intensity-based Stern - Volmer plots fitted second-order polynomial equations, suggesting the coexistence of both static and dynamic quenching, while the increase of the slopes with temperature points to the predominance of dynamic phenomena. Time-resolved fluorescence measurements also point to dynamic quenching related to transient interactions, rather than to specific bonding. Thermodynamic analysis yields negative free energy changes in all cases, with positive changes for enthalpy and large positive values for TΔS. These are in agreement with the Stern - Volmer analysis, suggesting the predominance of transient, dynamic (here entropic) interactions. These provide an image of mucin interacting with pectin macromolecules during the oral processing and digestion of foods, and can relate to the texture, flavor (e.g. astringency) and bioavailability of polysaccharide-based foods.
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Affiliation(s)
- Mehraj Ahmad
- Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci. & Tech., Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Department of Food Science and Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Rani Bushra
- Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci. & Tech., Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Department of Food Science and Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Christos Ritzoulis
- Department of Food Science and Technology, International Hellenic University, Alexander Campus, 57400 Thessaloniki, Greece.
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