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Kierulf A, Mosleh I, Li J, Li P, Zarei A, Khazdooz L, Smoot J, Abbaspourrad A. Food LEGO: Building hollow cage and sheet superstructures from starch. SCIENCE ADVANCES 2024; 10:eadi7069. [PMID: 38363836 PMCID: PMC10871527 DOI: 10.1126/sciadv.adi7069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 01/18/2024] [Indexed: 02/18/2024]
Abstract
The idea of building large structures from small building blocks has had a long history in the human imagination, from the beautifully intricate shells assembled from silica by unicellular algae to the Egyptian pyramids built from stone. Carrying this idea into the food industry has important implications. Here, we introduce a Pickering emulsion platform for building superstructures like hollow cages and sheets using starch granules as building blocks. In food, these superstructures occupy up to six times more space than their constituent parts, thereby delivering a viscosity greater by an order of magnitude than unstructured starch. To achieve this higher viscosity, they use an alternative superstructure mechanism as opposed to the classic swelling mechanism of individual particles. These super-thickeners may reduce calories, cut production costs, and stretch the global food supply, demonstrating how we can design the future by playing with our food.
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Affiliation(s)
- Arkaye Kierulf
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, NY 14853, USA
- Tate & Lyle Solutions USA LLC, 5450 Prairie Stone Pkwy, Hoffman Estates, IL 60192, USA
| | - Imann Mosleh
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, NY 14853, USA
| | - Jieying Li
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, NY 14853, USA
| | - Peilong Li
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, NY 14853, USA
| | - Amin Zarei
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, NY 14853, USA
| | - Leila Khazdooz
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, NY 14853, USA
| | - James Smoot
- Tate & Lyle Solutions USA LLC, 5450 Prairie Stone Pkwy, Hoffman Estates, IL 60192, USA
| | - Alireza Abbaspourrad
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, NY 14853, USA
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Effect of ratio of hydrophilic and hydrophobic ligand length on the adsorption behaviors of amphiphilic gold nanoparticles at the liquid-liquid interface. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Li S, Opdam J, G J van der Ven L, Tuinier R, Catarina C Esteves A. What is the role of PEO chains in the assembly of core-corona supraparticles in aqueous dispersions? J Colloid Interface Sci 2023; 646:461-471. [PMID: 37207427 DOI: 10.1016/j.jcis.2023.05.044] [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: 02/21/2023] [Revised: 04/24/2023] [Accepted: 05/06/2023] [Indexed: 05/21/2023]
Abstract
Hypothesis The assembly of core-corona supraparticles in aqueous dispersions has been regularly assisted by auxiliary monomers/oligomers which modify the individual particles with, e.g., surface grafting of polyethylene oxide (PEO) chains or other hydrophilic monomers. However, this modification complicates the preparation and purification procedures and increases potential upscaling efforts. Hybrid polymer-silica core-corona supracolloids could be more simply assembled if the PEO chains from surfactants, typically used by default as polymer stabilizers, concomitantly act as assembly promotors. The supracolloids assembly could therefore be more easily achieved without requiring particles functionalization or post-purification steps. Methods The self-assembly of supracolloidal particles prepared with PEO-surfactant stabilized (Triton X-405) and/or PEO-grafted polymer particles is compared to differentiate the roles of the PEO chains in the assembly of core-corona supraparticles. Using time-resolved dynamic light scattering (DLS) and cryogenic transmission electron microscopy(cryo-TEM), the effect of concentration of PEO chains (from surfactant) on the kinetics and dynamics of supracolloids assembly is investigated. Self-consistent field (SCF) lattice theory was used to numerically study the distribution of PEO chains at the interfaces present in the supracolloidal dispersions. Findings The PEO based surfactant can be used as assembly promoter of core-corona hybrid supracolloids due to its amphiphilic nature and via establishing hydrophobic interactions. The concentration of the PEO surfactant, and especially the PEO chains distribution over the different interfaces, crucially affect the supracolloids assembly. A simplified pathway for preparing hybrid supracolloidal particles with a well-controlled corona coverage over polymer cores is presented.
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Affiliation(s)
- Siyu Li
- Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands
| | - Joeri Opdam
- Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands
| | - Leendert G J van der Ven
- Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands
| | - Remco Tuinier
- Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands; Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands
| | - A Catarina C Esteves
- Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands; Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, the Netherlands.
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Kumar S, Karmacharya M, Cho YK. Bridging the Gap between Nonliving Matter and Cellular Life. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2202962. [PMID: 35988151 DOI: 10.1002/smll.202202962] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/28/2022] [Indexed: 06/15/2023]
Abstract
A cell, the fundamental unit of life, contains the requisite blueprint information necessary to survive and to build tissues, organs, and systems, eventually forming a fully functional living creature. A slight structural alteration can result in data misprinting, throwing the entire life process off balance. Advances in synthetic biology and cell engineering enable the predictable redesign of biological systems to perform novel functions. Individual functions and fundamental processes at the core of the biology of cells can be investigated by employing a synthetically constrained micro or nanoreactor. However, constructing a life-like structure from nonliving building blocks remains a considerable challenge. Chemical compartments, cascade signaling, energy generation, growth, replication, and adaptation within micro or nanoreactors must be comparable with their biological counterparts. Although these reactors currently lack the power and behavioral sophistication of their biological equivalents, their interface with biological systems enables the development of hybrid solutions for real-world applications, such as therapeutic agents, biosensors, innovative materials, and biochemical microreactors. This review discusses the latest advances in cell membrane-engineered micro or nanoreactors, as well as the limitations associated with high-throughput preparation methods and biological applications for the real-time modulation of complex pathological states.
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Affiliation(s)
- Sumit Kumar
- Center for Soft and Living Matter, Institute for Basic Science (IBS), UNIST-gil 50, Ulsan, 44919, Republic of Korea
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea
| | - Mamata Karmacharya
- Center for Soft and Living Matter, Institute for Basic Science (IBS), UNIST-gil 50, Ulsan, 44919, Republic of Korea
- Department of Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea
| | - Yoon-Kyoung Cho
- Center for Soft and Living Matter, Institute for Basic Science (IBS), UNIST-gil 50, Ulsan, 44919, Republic of Korea
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 44919, Republic of Korea
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Wu G, Li M, Luo Z, Qi L, Yu L, Zhang S, Liu H. Designed Synthesis of Compartmented Bienzyme Biocatalysts Based on Core-Shell Zeolitic Imidazole Framework Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206606. [PMID: 36461684 DOI: 10.1002/smll.202206606] [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: 10/26/2022] [Revised: 11/19/2022] [Indexed: 06/17/2023]
Abstract
For complex cascade biocatalysis, multienzyme compartmentalization helps to optimize substrate transport channels and promote the orderly and tunable progress of step reactions. Herein, a simple and general synthesis strategy is proposed for the construction of a multienzyme biocatalyst by compartmentalizing glucose oxidase and horseradish peroxidase (GOx and HRP) within core-shell zeolite imidazole frameworks (ZIF)-8@ZIF-8 nanostructures. Owing to the combined effects of biomimetic mineralization and the fine regulation of the ZIF-8 growth process, the uniform shell encloses the seed (core) surface by epitaxial growth, and the bienzyme system is accurately localized in a controlled manner. The versatility of this strategy is also reflected in ZIF-67. Meanwhile, with the ability to covalently bind divalent metal ions, lithocholic acid (LCA) is used as a competitive ligand to improve the pore structure of the ZIF from a single micropore to a hierarchical micro/mesopore network, which greatly increases mass transfer efficiency. Furthermore, the multienzyme cascade reaction is exemplified by the oxidation of o-phenylenediamine (OPD). The findings show that the bienzyme assembly strategy significantly affects the biocatalytic efficiency mainly by influencing the utilization efficiency of the intermediate (Hydrogen peroxide, H2 O2 ) between the step reactions. This study sheds new light on facile synthetic routes to constructing in vitro multienzyme biocatalysts.
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Affiliation(s)
- Gaohui Wu
- Lab of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong, 510640, China
| | - Meng Li
- Lab of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong, 510640, China
| | - Zhigang Luo
- Lab of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong, 510640, China
| | - Liang Qi
- Lab of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong, 510640, China
| | - Long Yu
- Lab of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong, 510640, China
| | - Shaobo Zhang
- Centre for Nutrition and Food Sciences, University of Queensland, St Lucia, Brisbane, Queensland, 4072, Australia
| | - Hongsheng Liu
- Lab of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong, 510640, China
- School of Food Science and Engineering, South China University of Technology, No. 381 Wushan Road, Guangzhou, Guangdong, 510640, China
- Sino-Singapore International Joint Research Institute, Knowledge City, Guangzhou, Guangdong, 510663, China
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Alenzi AM, Albalawi SA, Alghamdi SG, Albalawi RF, Albalawi HS, Qushawy M. Review on Different Vesicular Drug Delivery Systems (VDDSs) and Their Applications. RECENT PATENTS ON NANOTECHNOLOGY 2023; 17:18-32. [PMID: 35227188 DOI: 10.2174/1872210516666220228150624] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/28/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Colloidal dispersions, also known as vesicular drug delivery systems (VDDSs), are highly ordered assemblies composed of one or more concentric bilayers formed by the self-assembly of amphiphilic building blocks in the presence of water. OBJECTIVE VDDSs are important to target the entrapped drugs at specific sites inside the body, control the drug release, enhance the drug bioavailability, and reduce undesired side effects. METHODS There are different types of VDDSs suitable for the entrapment of both hydrophilic and lipophilic drugs. According to the patent composition, VDDSs are classified into lipid-based and nonlipid- based VDDSs. RESULTS There are different types of VDDSs which include liposomes, ethosomes, transferosomes, ufasomes, colloidosomes, cubosomes, niosomes, bilosomes, aquasomes, etc. Conclusion: This review article aims to address the different types of VDDSs, their advantages and disadvantages, and their therapeutic applications.
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Affiliation(s)
- Asma M Alenzi
- Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Sana A Albalawi
- Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Shatha G Alghamdi
- Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Rawan F Albalawi
- Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Hadeel S Albalawi
- Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Mona Qushawy
- Department of Pharmaceutics, Faculty of Pharmacy, University of Tabuk, Tabuk 71491, Saudi Arabia
- Department of Pharmaceutics, Faculty of Pharmacy, Sinai University, Alarish, North Sinai 45511, Egypt
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Liu L, Wei J, Ho KM, Chiu KY, Ngai T. Capsules templated from water-in-oil Pickering emulsions for enzyme encapsulation. J Colloid Interface Sci 2023; 629:559-568. [PMID: 36179576 DOI: 10.1016/j.jcis.2022.09.106] [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: 07/31/2022] [Revised: 09/17/2022] [Accepted: 09/20/2022] [Indexed: 10/14/2022]
Abstract
HYPOTHESIS Encapsulation of sensitive water-soluble bioactive materials such as fragrances, polyphenols and enzymes poses an immense challenge with capsules templated from water-in-oil (w/o) emulsions. Generation of radicals, heating, and extreme pH that are necessary for shell formation through interfacial reactions may have undesired influences on the active ingredients and thus lower their activity. EXPERIMENTS To overcome these limitations, we present a method to encapsulate sensitive ingredients, whereby capsules are templated from a w/o Pickering emulsion stabilized by binary particles of different hydrophilicity levels; the particles assembled at the water/oil interface are then crosslinked by polydiisocyanate (PHDI) at room temperature and neutral pH. Zein and casein nanoparticles were used as hydrophilic stabilizers and lipase was chosen as a model sensitive biomolecule that was encapsulated in the water core. FINDINGS Our results indicated that the enzymes encapsulated in colloid capsules had higher activity than those encapsulated in traditional w/o Pickering emulsion without shell crosslinking. The capsule structure effectively protected enzymes from the outer environment. This method is well suited for the encapsulation and protection of sensitive ingredients and shows great application in food, drug, and cosmetic industries.
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Affiliation(s)
- Liangdong Liu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Jingjing Wei
- Department of Fine Chemical Engineering, Shenzhen Polytechnic, Nanshan District, Shenzhen, Guangdong, China.
| | - Kin Man Ho
- Xianhong Science (Hong Kong) Co. Ltd, Room 1604, Nanyang Plaza, No. 57 Hung To Road, Kwun Tong, Kowloon, Hong Kong, China
| | - Kwan Yeung Chiu
- Xianhong Science (Hong Kong) Co. Ltd, Room 1604, Nanyang Plaza, No. 57 Hung To Road, Kwun Tong, Kowloon, Hong Kong, China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
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Wang B, Yin B, Yu H, Zhang Z, Wang G, Shi S, Gu X, Yang W, Tang BZ, Russell TP. Interfacial Assembly and Jamming of Soft Nanoparticle Surfactants into Colloidosomes and Structured Liquids. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54287-54292. [PMID: 36440677 DOI: 10.1021/acsami.2c13414] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nanoparticle surfactant (NPS) offers a powerful strategy to generate all-liquid constructs that integrate the inherent properties of the NPs into 3D architectures. Here, using the co-assembly of fluorescent polymeric nanoparticles and amine-functionalized polyhedral oligomeric silsesquioxane, the assembly and jamming behavior of a new type of NPS at the oil-water interface is uncovered. Unlike "solid" inorganic nanoparticles, "soft" polymeric nanoparticles can reorganize when jammed, leading to a relaxation and deformation of the interfacial assemblies, for example, the 3D printed sugar-coated haw stick-like liquid tubules. With NPS serving as emulsifiers, stable Pickering emulsions are prepared that can be converted into robust colloidosomes with pH responsiveness, showing numerous potential applications for encapsulation and controlled release.
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Affiliation(s)
- Beibei Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bangqi Yin
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hao Yu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhao Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guan Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shaowei Shi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinggui Gu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
| | - Wantai Yang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Thomas P Russell
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
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Li G, Zuo YY. Molecular and colloidal self-assembly at the oil–water interface. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Pauli O, Honciuc A. Extraction of Metal Ions by Interfacially Active Janus Nanoparticles Supported by Wax Colloidosomes Obtained from Pickering Emulsions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3738. [PMID: 36364514 PMCID: PMC9654599 DOI: 10.3390/nano12213738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Most common wastewater treatment technologies for ion extraction and recovery rely on pumping wastewater through ion-exchange columns, filled with surface-functionalized polymer microspheres. To avoid the energetically intensive process of pumping large quantities of water through ion-exchange columns, alternative technologies are being developed, such as water-floating membranes containing ligands. In this context, innovative materials could be deployed. Here, we report nanostructured paraffine wax microspheres capable of floating on water, a design based on Pickering emulsion technology, where Janus nanoparticles act both as emulsion stabilizers and as ligand carriers. In the process of emulsification of molten wax in water, followed by cooling, the branched polyethylenimine (bPEI) carrying Janus nanoparticles are trapped at the molten wax/water interface, forming spherical microspheres or colloidosomes decorated with nanoparticles. The paraffine wax colloidosomes stabilized by ligand-carrying Janus nanoparticles are capable of floating on water and show high metal ion extraction capacities towards Cr(VI), Co(II), Ni(II), Cu(II) and Zn(II). In addition, we demonstrate that the ions can be recovered from the colloidosomes and that the colloidosomes can withstand several extraction/recovery cycles with little or no loss in the absorption capacity.
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Affiliation(s)
- Oliver Pauli
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Einsiedlerstrasse 31, 8820 Wädenswil, Switzerland
| | - Andrei Honciuc
- Electroactive Polymers and Plasmochemistry Laboratory, “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania
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Gazil O, Virgilio N, Gauffre F. Synthesis of ultrasmall metal nanoparticles and continuous shells at the liquid/liquid interface in Ouzo emulsions. NANOSCALE 2022; 14:13514-13519. [PMID: 36106947 DOI: 10.1039/d2nr04019k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Herein, we report a novel method to synthesize metal nanoparticle-shells (NP-shells) and continuous shells at the liquid/liquid interface, via an interfacial reaction in an Ouzo emulsion. Ouzo emulsions spontaneously form submicronic droplets with a narrow size distribution, without any energy-intensive process. The Ouzo system in this work comprises water, tetrahydrofuran (THF) and butylated hydroxytoluene (BHT), and forms BHT-rich droplets (∼100 nm). The addition of a reducing agent (NaBH4) in the aqueous phase, and of a metal precursor (AuPPh3Cl and/or Pd(PPh3)2Cl2) in the BHT-rich droplets, results in the formation of Au nanoparticles (AuNPs), continuous Pd shells, or bimetallic shells, at the interface of the droplets. Control over the NP-shell size was achieved by the addition of a water-soluble polymer during the synthesis, which in turn leads to smaller NP-shells.
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Affiliation(s)
- Olivier Gazil
- Univ Rennes, CNRS, ISCR-UMR6226, F-35000 Rennes, France.
- CREPEC, Department of Chemical Engineering, Polytechnique Montréal, C.P. 6079 Succursale Centre-Ville, Montréal, Québec H3C 3A7, Canada
| | - Nick Virgilio
- CREPEC, Department of Chemical Engineering, Polytechnique Montréal, C.P. 6079 Succursale Centre-Ville, Montréal, Québec H3C 3A7, Canada
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Jiang X, Martens HJ, Shekarforoush E, Muhammed MK, Whitehead KA, Arneborg N, Risbo J. Multi-species colloidosomes by surface-modified lactic acid bacteria with enhanced aggregation properties. J Colloid Interface Sci 2022; 622:503-514. [DOI: 10.1016/j.jcis.2022.04.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 04/11/2022] [Accepted: 04/23/2022] [Indexed: 10/18/2022]
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Assembly of partially covered strawberry supracolloids in dilute and concentrate aqueous dispersions. J Colloid Interface Sci 2022; 627:827-837. [PMID: 35901562 DOI: 10.1016/j.jcis.2022.06.179] [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: 05/10/2022] [Revised: 06/25/2022] [Accepted: 06/30/2022] [Indexed: 11/20/2022]
Abstract
HYPOTHESIS Core-corona supracolloids can be assembled in aqueous dispersions by controlling the physical interactions between the corona and core colloidal particles. A raspberry corona configuration with full surface coverage of the core can be reached by inducing strong attractive interactions between the individual particles. A controlled partial surface coverage of the core, i.e. strawberry configuration, is however, more difficult to achieve. Supracolloids with different surface coverage ratio exhibit unique and multifunctional surface properties. EXPERIMENTS By counterbalancing the multiple physical interactions playing a role during the assembly, the configuration and stability of the assemblies could be fine-tuned over a wide range of concentrations. Supracolloids consisting of polyethylene glycol (PEO)-grafted polymer particles covered by silica nanoparticles were assembled with different configurations, by adjusting the pH and ionic strength of the dispersion, the PEO grafting density and the particles concentration. The self-assembly process and resulting configurations were monitored via cryogenic transmission electron microscopy (Cryo-TEM) and light scattering. FINDINGS The suitable conditions to assemble supracolloids with partial corona coverage have been established. Stable strawberry supracolloids could be prepared, both for diluted (1 wt%) and concentrated (12 wt%) dispersions. These hybrid supracolloids with well-defined configuration are highly relevant to developing advanced water-borne paints and inks, food dispersions, cosmetic and healthcare products.
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Perro A, Coudon N, Chapel JP, Martin N, Béven L, Douliez JP. Building micro-capsules using water-in-water emulsion droplets as templates. J Colloid Interface Sci 2022; 613:681-696. [DOI: 10.1016/j.jcis.2022.01.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 12/11/2022]
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Di Iorio D, Wegner SV. Towards applications of synthetic cells in nanotechnology. Curr Opin Chem Biol 2022; 68:102145. [PMID: 35461027 DOI: 10.1016/j.cbpa.2022.102145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 11/03/2022]
Abstract
Synthetic cells, which are assembled anew from well-defined molecular parts, open-up new possibilities for nanotechnological applications due to their reduced complexity and high functionality. In this review, we discuss how synthetic cells are being implemented in different fields ranging from biomedicine to material science. On one hand, synthetic cells can serve as microreactors that house metabolic networks and as therapeutic carriers that directly communicate with living cells. On the other hand, synthetic cells can become active components in a new-generation of materials that process inputs and result in autonomous and adaptive behavior. These early examples highlight the potential impact that synthetic cells will have in future applications.
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Affiliation(s)
- Daniele Di Iorio
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Germany
| | - Seraphine V Wegner
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Germany.
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16
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Contini C, Hu W, Elani Y. Manufacturing polymeric porous capsules. Chem Commun (Camb) 2022; 58:4409-4419. [PMID: 35298578 PMCID: PMC8981216 DOI: 10.1039/d1cc06565c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/09/2022] [Indexed: 12/19/2022]
Abstract
Polymeric porous capsules represent hugely promising systems that allow a size-selective through-shell material exchange with their surroundings. They have vast potential in applications ranging from drug delivery and chemical microreactors to artificial cell science and synthetic biology. Due to their porous core-shell structure, polymeric porous capsules possess an enhanced permeability that enables the exchange of small molecules while retaining larger compounds and macromolecules. The cross-capsule transfer of material is regulated by their pore size cut-off, which depends on the molecular composition and adopted fabrication method. This review outlines the main strategies for manufacturing polymeric porous capsules and provides some practical guidance for designing polymeric capsules with controlled pore size.
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Affiliation(s)
- Claudia Contini
- Department of Chemical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
- FabriCELL, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, London W12 0BZ, UK
| | - Wenyi Hu
- Department of Chemical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
| | - Yuval Elani
- Department of Chemical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
- FabriCELL, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, London W12 0BZ, UK
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17
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Guzmán E, Martínez-Pedrero F, Calero C, Maestro A, Ortega F, Rubio RG. A broad perspective to particle-laden fluid interfaces systems: from chemically homogeneous particles to active colloids. Adv Colloid Interface Sci 2022; 302:102620. [PMID: 35259565 DOI: 10.1016/j.cis.2022.102620] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 01/12/2023]
Abstract
Particles adsorbed to fluid interfaces are ubiquitous in industry, nature or life. The wide range of properties arising from the assembly of particles at fluid interface has stimulated an intense research activity on shed light to the most fundamental physico-chemical aspects of these systems. These include the mechanisms driving the equilibration of the interfacial layers, trapping energy, specific inter-particle interactions and the response of the particle-laden interface to mechanical perturbations and flows. The understanding of the physico-chemistry of particle-laden interfaces becomes essential for taking advantage of the particle capacity to stabilize interfaces for the preparation of different dispersed systems (emulsions, foams or colloidosomes) and the fabrication of new reconfigurable interface-dominated devices. This review presents a detailed overview of the physico-chemical aspects that determine the behavior of particles trapped at fluid interfaces. This has been combined with some examples of real and potential applications of these systems in technological and industrial fields. It is expected that this information can provide a general perspective of the topic that can be exploited for researchers and technologist non-specialized in the study of particle-laden interfaces, or for experienced researcher seeking new questions to solve.
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Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain.
| | - Fernando Martínez-Pedrero
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
| | - Carles Calero
- Departament de Física de la Matèria Condensada, Facultat de Física, Universitat de Barcelona, Avenida Diagonal 647, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia, IN2UB, Universitat de Barcelona, Avenida, Diagonal 647, 08028 Barcelona, Spain
| | - Armando Maestro
- Centro de Fı́sica de Materiales (CSIC, UPV/EHU)-Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain; IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain.
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18
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Sato W, Zajkowski T, Moser F, Adamala KP. Synthetic cells in biomedical applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1761. [PMID: 34725945 PMCID: PMC8918002 DOI: 10.1002/wnan.1761] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 08/23/2021] [Accepted: 08/30/2021] [Indexed: 12/12/2022]
Abstract
Synthetic cells are engineered vesicles that can mimic one or more salient features of life. These features include directed localization, sense-and-respond behavior, gene expression, metabolism, and high stability. In nanomedicine, many of these features are desirable capabilities of drug delivery vehicles but are difficult to engineer. In this focus article, we discuss where synthetic cells offer unique advantages over nanoparticle and living cell therapies. We review progress in the engineering of the above life-like behaviors and how they are deployed in nanomedicine. Finally, we assess key challenges synthetic cells face before being deployed as drugs and suggest ways to overcome these challenges. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Biology-Inspired Nanomaterials > Lipid-Based Structures.
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Affiliation(s)
- Wakana Sato
- 1 Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN US
| | - Tomasz Zajkowski
- Centre of New Technologies, University of Warsaw, S. Banacha 2c, 02-097 Warsaw, Poland
- USRA at NASA Ames Research Center, Mountain View, CA 94035
- Blue Marble Space Institute of Science, 600 1st Avenue, Seattle WA 98104
| | - Felix Moser
- Synlife, Inc., One Kendall Square Suite B4401, Cambridge, MA 20139
| | - Katarzyna P. Adamala
- 1 Department of Genetics, Cell Biology and Development, University of Minnesota, Minneapolis, MN US
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19
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Guan X, Liu Y, Wan Z, Steve Tse YL, Ngai T. Non-Covalent Reconfigurable Microgel Colloidosomes with a Well-Defined Bilayer Shell. Chem Sci 2022; 13:6205-6216. [PMID: 35733902 PMCID: PMC9159095 DOI: 10.1039/d2sc01082h] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/25/2022] [Indexed: 11/25/2022] Open
Abstract
Microgels are extremely interfacially active and are widely used to stabilize emulsions. However, they are commonly used to stabilize oil-in-water emulsions due to their intrinsic hydrophilicity and initially dispersed in water. In addition, there have been no attempts to control microgel structural layers that are formed at the interface and as a result it limits applications of microgel in advanced materials. Here, we show that by introducing octanol into poly(N-isopropylacrylamide-co-methacrylic acid) (PNIPAM-co-MAA) microgels, octanol-swollen microgels can rapidly diffuse from the initially dispersed oil phase onto the water droplet surface. This facilitates the formation of microgel-laden interfacial layers with strong elastic responses and also generates stable inverse water-in-oil Pickering emulsions. These emulsions can be used as templates to produce microgel colloidosomes, herein termed ‘microgelsomes’, with shells that can be fine-tuned from a particle monolayer to a well-defined bilayer. The microgelsomes can then be used to encapsulate and/or anchor nanoparticles, proteins, vitamin C, bio-based nanocrystals or enzymes. Moreover, the programmed release of these substances can be achieved by using ethanol as a trigger to mediate shell permeability. Thus, these reconfigurable microgelsomes with a microgel-bilayer shell can respond to external stimuli and demonstrate tailored properties, which offers novel insights into microgels and promise wider application of Pickering emulsions stabilized by soft colloids. Inverse W/O Pickering emulsions and reconfigurable microgelsomes with a well-defined bilayer structure are prepared from octanol-swollen PNIPAM-co-MAA microgels and the combination of binary microgels, which promise wider application of soft colloids.![]()
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Affiliation(s)
- Xin Guan
- Department of Chemistry, The Chinese University of Hong Kong Shatin N. T. Hong Kong China
| | - Yang Liu
- Department of Chemistry, The Chinese University of Hong Kong Shatin N. T. Hong Kong China
| | - Zhili Wan
- Department of Chemistry, The Chinese University of Hong Kong Shatin N. T. Hong Kong China
- School of Food Science and Technology, South China University of Technology Guangzhou 510640 China
| | - Ying-Lung Steve Tse
- Department of Chemistry, The Chinese University of Hong Kong Shatin N. T. Hong Kong China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong Shatin N. T. Hong Kong China
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20
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Koroleva MY, Yurtov EV. Pickering emulsions: properties, structure, using as colloidosomes and stimuli-responsive emulsions. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Ge S, Zhang S, Chang X, Li A, Wang W, Li Q, Wang Z. Redox and pH-responsive emulsions based on TiO2 nanoparticles and ferrocene derivates. NEW J CHEM 2022. [DOI: 10.1039/d2nj03500f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We synthesized a novel surfactant ferrocene azine (FcA) and developed a redox and pH-responsive emulsion stabilized by TiO2 nanoparticles and oxidized ferrocene azine (Fc+A) with fluorescence through simple mixing instead...
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22
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Franzini S, Reatto L, Pini D. Phase diagram of SALR fluids on spherical surfaces. SOFT MATTER 2021; 18:186-197. [PMID: 34859802 DOI: 10.1039/d1sm01257f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We investigate the phase diagram of a fluid of hard-core disks confined to the surface of a sphere and whose interaction potential contains a short-range attraction followed by a long-range repulsive tail (SALR). Based on previous work in the bulk we derive a stability criterion for the homogeneous phase of the fluid, and locate a region of instability linked to the presence of a negative minimum in the spherical harmonics expansion of the interaction potential. The inhomogeneous phases contained within this region are characterized using a mean-field density functional theory. We find several inhomogeneous patterns that can be separated into three broad classes: cluster crystals, stripes, and bubble crystals, each containing topological defects. Interestingly, while the periodicity of inhomogeneous phases at large densities is mainly determined by the position of the negative minimum of the potential expansion, the finite size of the system induces a richer behavior at smaller densities.
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Affiliation(s)
- Stefano Franzini
- Dipartimento di Fisica "A. Pontremoli", Università di Milano, Via Celoria 16, 20133 Milano, Italy.
| | - Luciano Reatto
- Dipartimento di Fisica "A. Pontremoli", Università di Milano, Via Celoria 16, 20133 Milano, Italy.
| | - Davide Pini
- Dipartimento di Fisica "A. Pontremoli", Università di Milano, Via Celoria 16, 20133 Milano, Italy.
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23
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Liang Y, Xiang D, Hou Y, Li G, Feng S, Yang M. Size-encoded hierarchical self-assembly of nanoparticles into chains and tubules. J Colloid Interface Sci 2021; 604:866-875. [PMID: 34303886 DOI: 10.1016/j.jcis.2021.07.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/18/2021] [Accepted: 07/12/2021] [Indexed: 11/24/2022]
Abstract
Hierarchical structures with sophisticated patterns allow the emergence of challenging properties. However, the highly cooperative and specific interactions needed for assembly spanning different length scales are typically lacking in inorganic nanoparticles (NPs). Here we show that size can be a common structural driving force for controlling hierarchical assembly of inorganic NPs into anisotropic superstructures. It involves first the self-limiting assembly of small CdS NPs into large supraparticles and their subsequent spontaneous organization into chains and tubules hundreds of nanometers long. Our quantitative calculations based on DLVO theory reveals an intrinsic size effect relating to the dimension change of assembly units in accordance with a negative cooperativity. It is shown that the size increase in building blocks creates an effective kinetic barrier contrast at different attachment sites due to the increase of interparticle electrostatic repulsion, switching the assembly from thermodynamically preferred 3D to kinetically favored 1D pathway. The size-encoded hierarchical assembly is accompanied by the ligand-controlled Oswald ripening process, which is responsible for the variation of hierarchical patterns from chains to tubules. The general principle in governing multistage inorganic NP ordering represents an important guideline toward the complex mesoscale structures that may surpass traditional materials in both design and functionality.
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Affiliation(s)
- Yuting Liang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China; Key Laboratory of Microsystems and Micronanostructures Manufacturing, Harbin Institute of Technology 2 Yikuang Street, Harbin 150080, PR China
| | - Di Xiang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China; Key Laboratory of Microsystems and Micronanostructures Manufacturing, Harbin Institute of Technology 2 Yikuang Street, Harbin 150080, PR China
| | - Ying Hou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Guangshe Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.
| | - Ming Yang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.
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24
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Liu F, Guan X, Liu X, McClements DJ, Ngai T. Bioinspired Eggosomes with Dual Stimuli-Responsiveness. ACS APPLIED BIO MATERIALS 2021; 4:7825-7835. [DOI: 10.1021/acsabm.1c00765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fuguo Liu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P.R. China
| | - Xin Guan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, P.R. China
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
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25
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Brossault DFF, McCoy TM, Routh AF. Preparation of Multicore Colloidosomes: Nanoparticle-Assembled Capsules with Adjustable Size, Internal Structure, and Functionalities for Oil Encapsulation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51495-51503. [PMID: 34672538 DOI: 10.1021/acsami.1c15334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Colloidosomes, also known as Pickering emulsion capsules, have attracted attention for encapsulation of hydrophilic and hydrophobic actives. However, current preparation methods are limited to single core structures and require the use of modified/engineered nanoparticles for forming the shell. Here, we report a fast, simple, and versatile method for producing multi-oil core silica colloidosomes via salt-driven assembly of purely hydrophilic commercial nanoparticles dispersed within an oil-in-water-in-oil (O/W/O) double emulsion template. The internal structure and overall diameter of the capsules can be adjusted by altering the primary and secondary emulsification conditions. With this approach, 7-35 μm diameter multicore colloidosomes containing 0.9-4.2 μm large oil cores were produced. The capsules can easily be functionalized depending on the type of nanoparticles used in the preparation process. Here, metal oxide nanoparticles, such as Fe3O4, TiO2, and ZnO, were successfully incorporated within the structure, conferring specific functional properties (i.e., magnetism and photocatalysis) to the final microcapsules. These capsules can also be ruptured by using ultrasound, enabling easy access to the internal core environments. Therefore, we believe this work offers a promising approach for producing multicore colloidosomes with adjustable structure and functionalities for the encapsulation of hydrophobic actives.
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Affiliation(s)
- David F F Brossault
- BP Institute, University of Cambridge, Madingley Rise, Cambridge CB3 0EZ, United Kingdom
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Dr., Cambridge CB3 0AS, United Kingdom
| | - Thomas M McCoy
- BP Institute, University of Cambridge, Madingley Rise, Cambridge CB3 0EZ, United Kingdom
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Dr., Cambridge CB3 0AS, United Kingdom
| | - Alexander F Routh
- BP Institute, University of Cambridge, Madingley Rise, Cambridge CB3 0EZ, United Kingdom
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Dr., Cambridge CB3 0AS, United Kingdom
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26
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Papan J, Boštjančič PH, Mertelj A, Lisjak D. Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2797. [PMID: 34835561 PMCID: PMC8621987 DOI: 10.3390/nano11112797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/19/2021] [Accepted: 10/19/2021] [Indexed: 11/17/2022]
Abstract
Janus particles, which have two surfaces exhibiting different properties, are promising candidates for various applications. For example, magneto-optic Janus particles could be used for in-vivo cancer imaging, drug delivery, and photothermal therapy. The preparation of such materials on a relatively large scale is challenging, especially if the Janus structure consists of a hard magnetic material like barium hexaferrite nanoplatelets. The focus of this study was to adopt the known Pickering emulsion, i.e., Granick's method, for the preparation of barium-hexaferrite/gold Janus nanoplatelets. The wax-in-water Pickering emulsions were stabilized with a combination of cetyltrimethyl ammonium bromide and barium hexaferrite nanoplatelets at 80 °C. Colloidosomes of solidified wax covered with the barium hexaferrite nanoplatelets formed after cooling the Pickering emulsions to room temperature. The formation and microstructure of the colloidosomes were thoroughly studied by optical and scanning electron microscopy. The process was optimized by various processing parameters, such as the composition of the emulsion system and the speed and time of emulsification. The colloidosomes with the highest surface coverage were used to prepare the Janus nanoplatelets by decorating the exposed surfaces of the barium hexaferrite nanoplatelets with gold nanospheres using mercaptan chemistry. Transmission electron microscopy was used to inspect the barium-hexaferrite/gold Janus nanoplatelets that were prepared for the first time.
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Affiliation(s)
- Jelena Papan
- Department of Complex Matter, Jožef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia; (P.H.B.); (A.M.); (D.L.)
- Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
| | - Patricija Hribar Boštjančič
- Department of Complex Matter, Jožef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia; (P.H.B.); (A.M.); (D.L.)
- Jožef Stefan International Postgraduate School, Jamova Cesta 39, 1000 Ljubljana, Slovenia
| | - Alenka Mertelj
- Department of Complex Matter, Jožef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia; (P.H.B.); (A.M.); (D.L.)
| | - Darja Lisjak
- Department of Complex Matter, Jožef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia; (P.H.B.); (A.M.); (D.L.)
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27
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Dang S, Brady J, Rel R, Surineni S, O'Shaughnessy C, McGorty R. Core-shell droplets and microcapsules formed through liquid-liquid phase separation of a colloid-polymer mixture. SOFT MATTER 2021; 17:8300-8307. [PMID: 34550150 DOI: 10.1039/d1sm01091c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Microcapsules allow for the controlled containment, transport, and release of cargoes ranging from pharmaceuticals to fragrances. Given the interest from a variety of industries in microcapsules and other core-shell structures, a multitude of fabrication strategies exist. Here, we report on a method relying on a mixture of temperature-responsive microgel particles, poly(N-isopropylacrylamide) (pNIPAM), and a polymer which undergo fluid-fluid phase separation. At room temperature this mixture separates into colloid-rich (liquid) and colloid-poor (gas) fluids. By heating the sample above a critical temperature where the microgel particles shrink dramatically and develop a more deeply attractive interparticle potential, the droplets of the colloid-rich phase become gel-like. As the temperature is lowered back to room temperature, these droplets of gelled colloidal particles reliquefy and phase separation within the droplet occurs. This phase separation leads to colloid-poor droplets within the colloid-rich droplets surrounded by a continuous colloid-poor phase. The gas/liquid/gas all-aqueous double emulsion lasts only a few minutes before a majority of the inner droplets escape. However, the colloid-rich shell of the core-shell droplets can solidify with the addition of salt. That this method creates core-shell structures with a shell composed of stimuli-sensitive microgel colloidal particles using only aqueous components makes it attractive for encapsulating biological materials and making capsules that respond to changes in, for example, temperature, salt concentration, or pH.
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Affiliation(s)
- Steven Dang
- Department of Physics and Biophysics, University of San Diego, San Diego, CA, 92110, USA.
| | - John Brady
- Department of Physics and Biophysics, University of San Diego, San Diego, CA, 92110, USA.
| | - Ryle Rel
- Department of Physics and Biophysics, University of San Diego, San Diego, CA, 92110, USA.
| | - Sreenidhi Surineni
- Department of Physics and Biophysics, University of San Diego, San Diego, CA, 92110, USA.
| | - Conor O'Shaughnessy
- Department of Physics and Biophysics, University of San Diego, San Diego, CA, 92110, USA.
| | - Ryan McGorty
- Department of Physics and Biophysics, University of San Diego, San Diego, CA, 92110, USA.
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28
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Li L, Sun H, Li M, Yang Y, Russell TP, Shi S. Gated Molecular Diffusion at Liquid-Liquid Interfaces. Angew Chem Int Ed Engl 2021; 60:17394-17397. [PMID: 34046998 DOI: 10.1002/anie.202105500] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/23/2021] [Indexed: 12/27/2022]
Abstract
The jamming of nanoparticle surfactants (NPSs) at liquid-liquid interface imparts attractive properties to the interfacial assemblies and enables the structuring of liquids. Herein, we report photoresponsive supramolecular microcapsules with jammed NPS assemblies at the oil-water interface, taking advantage of host-guest molecular recognition. The permeability of the colloidal membrane can be effectively manipulated by switching the NPSs from a jammed state to an unjammed state with a photo trigger, leading to a controlled molecular diffusion and release, affording a versatile platform for the construction of next generation smart microcapsule systems.
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Affiliation(s)
- Lianshun Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Huilou Sun
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Mingwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yang Yang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Thomas P Russell
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA, 01003, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Shaowei Shi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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29
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Liu P, Pei X, Li C, Li R, Chen Z, Song B, Cui Z, Xie D. pH-switchable wormlike micelles with high viscoelasticity formed by pseudo-oligomeric surfactants. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116499] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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30
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Fabrication of solid and hollow colloidosomes through self-assembly of micronsized polymer particles and their controlled transition. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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32
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Song R, Cho S, Shin S, Kim H, Lee J. From shaping to functionalization of micro-droplets and particles. NANOSCALE ADVANCES 2021; 3:3395-3416. [PMID: 36133725 PMCID: PMC9419121 DOI: 10.1039/d1na00276g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/10/2021] [Indexed: 06/15/2023]
Abstract
The structure of microdroplet and microparticle is a critical factor in their functionality, which determines the distribution and sequence of physicochemical reactions. Therefore, the technology of precisely tailoring their shape is requisite for implementing the user demand functions in various applications. This review highlights various methodologies for droplet shaping, classified into passive and active approaches based on whether additional body forces are applied to droplets to manipulate their functions and fabricate them into microparticles. The passive approaches cover batch emulsification, solvent evaporation and diffusion, micromolding, and microfluidic methods. In active approaches, the external forces, such as electrical and magnetic fields or optical lithography, are applied to microdroplets. Special attention is also given to latest technologies using microdroplets and microparticles, especially in the fields of biological, optical, robotic, and environmental applications. Finally, this review aims to address the advantages and disadvantages of the introduced approaches and suggests the direction for further development in this field.
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Affiliation(s)
- Ryungeun Song
- School of Mechanical Engineering, Sungkyunkwan University Suwon 16419 Korea
| | - Seongsu Cho
- School of Mechanical Engineering, Sungkyunkwan University Suwon 16419 Korea
| | - Seonghun Shin
- School of Mechanical Engineering, Sungkyunkwan University Suwon 16419 Korea
| | - Hyejeong Kim
- School of Mechanical Engineering, Korea University Seoul 02841 Korea
| | - Jinkee Lee
- School of Mechanical Engineering, Sungkyunkwan University Suwon 16419 Korea
- Institute of Quantum Biophysics, Sungkyunkwan University Suwon 16419 Korea
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Datta B, Paul D, Pal U, Rakshit T. Intriguing Biomedical Applications of Synthetic and Natural Cell-Derived Vesicles: A Comparative Overview. ACS APPLIED BIO MATERIALS 2021; 4:2863-2885. [PMID: 35014382 DOI: 10.1021/acsabm.0c01480] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The significant role of a vesicle is well recognized; however, only lately has the advancement in biomedical applications started to uncover their usefulness. Although the concept of vesicles originates from cell biology, it later transferred to chemistry and material science to develop nanoscale artificial vesicles for biomedical applications. Herein, we examine different synthetic and biological vesicles and their applications in the biomedical field in general. As our understanding of biological vesicles increases, more suitable biomimicking synthetic vesicles will be developed. The comparative discussion between synthetic and natural vesicles for biomedical applications is a relevant topic, and we envision this could enable the development of a proper approach to realize the next-generation treatment goals.
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Affiliation(s)
- Brateen Datta
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake City, Kolkata 700106, India
| | - Debashish Paul
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake City, Kolkata 700106, India
| | - Uttam Pal
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake City, Kolkata 700106, India
| | - Tatini Rakshit
- Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake City, Kolkata 700106, India
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Palamarchuk KV, Bukreeva TV, Kalashnikova IV, Zelenkov VN, Potapov VV. Encapsulation of Oil Phases with Different Compositions into a Shell Composed of Nanoparticles of Natural Hydrothermal Silica and Polyelectrolyte Layers. COLLOID JOURNAL 2021. [DOI: 10.1134/s1061933x21020083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lipid nanovesicles for biomedical applications: 'What is in a name'? Prog Lipid Res 2021; 82:101096. [PMID: 33831455 DOI: 10.1016/j.plipres.2021.101096] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 03/28/2021] [Accepted: 03/28/2021] [Indexed: 12/12/2022]
Abstract
Vesicles, generally defined as self-assembled structures formed by single or multiple concentric bilayers that surround an aqueous core, have been widely used for biomedical applications. They can either occur naturally (e.g. exosomes) or be produced artificially and range from the micrometric scale to the nanoscale. One the most well-known vesicle is the liposome, largely employed as a drug delivery nanocarrier. Liposomes have been modified along the years to improve physicochemical and biological features, resulting in long-circulating, ligand-targeted and stimuli-responsive liposomes, among others. In this process, new nomenclatures were reported in an extensive literature. In many instances, the new names suggest the emergence of a new nanocarrier, which have caused confusion as to whether the vesicles are indeed new entities or could simply be considered modified liposomes. Herein, we discussed the extensive nomenclature of vesicles based on the suffix "some" that are employed for drug delivery and composed of various types and proportions of lipids and others amphiphilic compounds. New names have most often been selected based on changes of vesicle lipid composition, but the payload, structural complexity (e.g. multicompartment) and new/improved proprieties (e.g. elasticity) have also inspired new vesicle names. Based on this discussion, we suggested a rational classification for vesicles.
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Mehanna MM, Mneimneh AT. Formulation and Applications of Lipid-Based Nanovehicles: Spotlight on Self-emulsifying Systems. Adv Pharm Bull 2021; 11:56-67. [PMID: 33747852 PMCID: PMC7961215 DOI: 10.34172/apb.2021.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/31/2020] [Accepted: 04/19/2020] [Indexed: 12/31/2022] Open
Abstract
The drug delivery investigation field is continuously widened and adapted to overcome many factors such as poor drug solubility, absorption, rapid metabolism, the variability of drug plasma levels, cellular efflux and many others. Due to resemblance to body constituents and their biocompatibility, lipids offer a promising scheme for poorly water-soluble and lipophilic drugs. Various nanoparticles including vesicular systems, lipid particulate systems, and emulsion systems provide some unique benefits as pharmaceutical carriers in drug and biomolecules delivery systems. Nowadays synthesis is directed toward simple, costless techniques, therefore, self-emulsifying systems have gained superiority over the other carriers. Self nano-emulsifying systems composed of oil, surfactant, and co-surfactant emulsified upon contact with an aqueous medium, has been widely exploited. This review attempts to provide a comprehensive interpretation of different types of lipid-based carriers emphasizing on the self-nanoemulsifying system, why it is gaining interest, formulation, composition, and applications.
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Affiliation(s)
- Mohammed M Mehanna
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Amina Tarek Mneimneh
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
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MacFarlane L, Zhao C, Cai J, Qiu H, Manners I. Emerging applications for living crystallization-driven self-assembly. Chem Sci 2021; 12:4661-4682. [PMID: 34163727 PMCID: PMC8179577 DOI: 10.1039/d0sc06878k] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/12/2021] [Indexed: 01/02/2023] Open
Abstract
The use of crystallization as a tool to control the self-assembly of polymeric and molecular amphiphiles in solution is attracting growing attention for the creation of non-spherical nanoparticles and more complex, hierarchical assemblies. In particular, the seeded growth method termed living crystallization-driven self-assembly (CDSA) has been established as an ambient temperature and potentially scalable platform for the preparation of low dispersity samples of core-shell fiber-like or platelet micellar nanoparticles. Significantly, this method permits predictable control of size, and access to branched and segmented structures where functionality is spatially-defined. Living CDSA operates under kinetic control and shows many analogies with living chain-growth polymerizations of molecular organic monomers that afford well-defined covalent polymers of controlled length except that it covers a much longer length scale (ca. 20 nm to 10 μm). The method has been applied to a rapidly expanding range of crystallizable polymeric amphiphiles, which includes block copolymers and charge-capped homopolymers, to form assemblies with crystalline cores and solvated coronas. Living CDSA seeded growth methods have also been transposed to a wide variety of π-stacking and hydrogen-bonding molecular species that form supramolecular polymers in processes termed "living supramolecular polymerizations". In this article we outline the main features of the living CDSA method and then survey the promising emerging applications for the resulting nanoparticles in fields such as nanomedicine, colloid stabilization, catalysis, optoelectronics, information storage, and surface functionalization.
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Affiliation(s)
- Liam MacFarlane
- Department of Chemistry, University of Victoria British Columbia Canada
| | - Chuanqi Zhao
- Department of Chemistry, University of Victoria British Columbia Canada
| | - Jiandong Cai
- Department of Chemistry, University of Victoria British Columbia Canada
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Huibin Qiu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Ian Manners
- Department of Chemistry, University of Victoria British Columbia Canada
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Adilbekova A, Yertayeva A. Pickering emulsions stabilized by some inorganic materials. CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2021. [DOI: 10.15328/cb1135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The paper presents studies of various solid stabilizers of emulsions based on inorganic materials. Inorganic colloidal particles have an advantage for obtaining of stable emulsions due to their safety for use in food, cosmetics, pharmaceutical industry and medicine. Pickering emulsions have a higher biodegradability compared to classical emulsions stabilized with surfactants. An overview of inorganic substances such as silicon dioxide, clay materials, metal and metal oxide nanoparticles, calcium compounds and carbon particles used for stabilizing of Pickering emulsions is considered. A variety of solid inorganic particles as well as modification of their surfaces by surfactants allows to obtain the stable Pickering emulsions of different types for a wide range of applications. It should be noted that despite a large number of studies, this class of disperse systems is still not studied fully; various methods of their preparation and influence of solid particle size on stability and size of emulsions droplets are shown.
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López-de-Luzuriaga JM, Monge M, Quintana J, Rodríguez-Castillo M. Single-step assembly of gold nanoparticles into plasmonic colloidosomes at the interface of oleic acid nanodroplets. NANOSCALE ADVANCES 2021; 3:198-205. [PMID: 36131883 PMCID: PMC9417255 DOI: 10.1039/d0na00494d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/08/2020] [Indexed: 06/15/2023]
Abstract
Plasmonic gold colloidosomes (Au CSs) of sub-200 nm size are formed by the self-assembly of spherical gold nanoparticles (Au NPs) of ca. 4 nm size at the interface of oleic acid (OA) nanodroplets formed in n-hexane. Au NPs are prepared through the mild decomposition of [Au(C6F5)(tht)] (tht = tetrahydrothiophene). These Au CSs display tunable surface, size and shape-dependent collective plasmonic absorptions, leading to interesting photothermal and stimuli-responsive properties.
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Affiliation(s)
- José M López-de-Luzuriaga
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ) Complejo Científico-Tecnológico 26006-Logroño Spain
| | - Miguel Monge
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ) Complejo Científico-Tecnológico 26006-Logroño Spain
| | - Javier Quintana
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ) Complejo Científico-Tecnológico 26006-Logroño Spain
| | - María Rodríguez-Castillo
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química (CISQ) Complejo Científico-Tecnológico 26006-Logroño Spain
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40
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Hunter SJ, Armes SP. Pickering Emulsifiers Based on Block Copolymer Nanoparticles Prepared by Polymerization-Induced Self-Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:15463-15484. [PMID: 33325720 PMCID: PMC7884006 DOI: 10.1021/acs.langmuir.0c02595] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/27/2020] [Indexed: 05/28/2023]
Abstract
Block copolymer nanoparticles prepared via polymerization-induced self-assembly (PISA) represent an emerging class of organic Pickering emulsifiers. Such nanoparticles are readily prepared by chain-extending a soluble homopolymer precursor using a carefully selected second monomer that forms an insoluble block in the chosen solvent. As the second block grows, it undergoes phase separation that drives in situ self-assembly to form sterically stabilized nanoparticles. Conducting such PISA syntheses in aqueous solution leads to hydrophilic nanoparticles that enable the formation of oil-in-water emulsions. Alternatively, hydrophobic nanoparticles can be prepared in non-polar media (e.g., n-alkanes), which enables water-in-oil emulsions to be produced. In this review, the specific advantages of using PISA to prepare such bespoke Pickering emulsifiers are highlighted, which include fine control over particle size, copolymer morphology, and surface wettability. This has enabled various fundamental scientific questions regarding Pickering emulsions to be addressed. Moreover, block copolymer nanoparticles can be used to prepare Pickering emulsions over various length scales, with mean droplet diameters ranging from millimeters to less than 200 nm.
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Affiliation(s)
- Saul J. Hunter
- Department of Chemistry,
Dainton Building, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K.
| | - Steven P. Armes
- Department of Chemistry,
Dainton Building, University of Sheffield, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K.
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41
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Madhavan N, Mukherjee M, Basavaraj MG. Porous Ceramics via Processable Pickering Emulsion Stabilized by Oppositely Charged Colloids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11645-11654. [PMID: 32894827 DOI: 10.1021/acs.langmuir.0c02339] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report a method to produce processable Pickering emulsions in which electrostatic heteroaggregation of oppositely charged fumed silica and alumina particles is exploited. The ability of weakly charged heteroaggregates to adsorb to the oil-water interface favors the formation of highly stable emulsions. A control over the microstructure and rheology of the Pickering emulsion is demonstrated by tuning parameters such as composition, pH, and total concentration of particles. The Pickering emulsions formed under optimal conditions are found to be gel-like and are excellent templates for the fabrication of porous ceramics. Furthermore, the porous mullite ceramic structure which has exceptional thermal and chemical resistance under harsh environments is obtained by drying and sintering of the emulsion template. The phase evolution, microstructure, and porosity of the resulting ceramic are characterized.
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Affiliation(s)
- Nithin Madhavan
- Metal Foams and Porous Materials Lab, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India
- Polymer Engineering and Colloid Science Laboratory, Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Manas Mukherjee
- Metal Foams and Porous Materials Lab, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Madivala G Basavaraj
- Polymer Engineering and Colloid Science Laboratory, Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600036, India
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42
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Liu Z, Zhou W, Qi C, Kong T. Interface Engineering in Multiphase Systems toward Synthetic Cells and Organelles: From Soft Matter Fundamentals to Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002932. [PMID: 32954548 DOI: 10.1002/adma.202002932] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/19/2020] [Indexed: 06/11/2023]
Abstract
Synthetic cells have a major role in gaining insight into the complex biological processes of living cells; they also give rise to a range of emerging applications from gene delivery to enzymatic nanoreactors. Living cells rely on compartmentalization to orchestrate reaction networks for specialized and coordinated functions. Principally, the compartmentalization has been an essential engineering theme in constructing cell-mimicking systems. Here, efforts to engineer liquid-liquid interfaces of multiphase systems into membrane-bounded and membraneless compartments, which include lipid vesicles, polymer vesicles, colloidosomes, hybrids, and coacervate droplets, are summarized. Examples are provided of how these compartments are designed to imitate biological behaviors or machinery, including molecule trafficking, growth, fusion, energy conversion, intercellular communication, and adaptivity. Subsequently, the state-of-art applications of these cell-inspired synthetic compartments are discussed. Apart from being simplified and cell models for bridging the gap between nonliving matter and cellular life, synthetic compartments also are utilized as intracellular delivery vehicles for nuclei acids and nanoreactors for biochemical synthesis. Finally, key challenges and future directions for achieving the full potential of synthetic cells are highlighted.
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Affiliation(s)
- Zhou Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Wen Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Cheng Qi
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, 518000, China
| | - Tiantian Kong
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, 518000, China
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43
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Wang R, Wang F, Gong Y, Cheng H, Shu M, Qin T, Ding X, Hu R, Zheng K, Zhang X, Chen L, Tian X. Polymer/particle/water intermolecular interaction regulated freeze-dried Pickering emulsion morphology. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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44
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Martínez-Pedrero F. Static and dynamic behavior of magnetic particles at fluid interfaces. Adv Colloid Interface Sci 2020; 284:102233. [PMID: 32961419 DOI: 10.1016/j.cis.2020.102233] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 10/23/2022]
Abstract
This perspective work reviews the current status of research on magnetic particles at fluid interfaces. The article gives both a unified overview of recent experimental advances and theoretical studies centered on very different phenomena that share a common characteristic: they involve adsorbed magnetic particles that range in size from a few nanometers to several millimeters. Because of their capability of being remotely piloted through controllable external fields, magnetic particles have proven essential as building blocks in the design of new techniques, smart materials and micromachines, with new tunable properties and prospective applications in engineering and biotechnology. Once adsorbed at a fluid-fluid interfase, in a process that can be facilitated via the application of magnetic field gradients, these particles often result sorely confined to two dimensions (2D). In this configuration, inter-particle forces directed along the perpendicular to the interface are typically very small compared to the surface forces. Hence, the confinement and symmetry breaking introduced by the presence of the surface play an important role on the response of the system to the application of an external field. In monolayers of particles where the magnetic is predominant interaction, the states reached are strongly determined by the mode and orientation of the applied field, which promote different patterns and processes. Furthermore, they can reproduce some of the dynamic assemblies displayed in bulk or form new ones, that take advantage of the interfacial phenomena or of the symmetry breaking introduce by the confining boundary. Magnetic colloids are also widely used for unraveling the guiding principles of 2D dynamic self-assembly, in designs devised for producing interface transport, as tiny probes for assessing interfacial rheological properties, neglecting the bulk and inertia contributions, as well as actuated stabilizing agents in foams and emulsions.
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45
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Wei X, Sbalbi N, Bradley LC. Nematic colloids at liquid crystal-air interfaces via photopolymerization. SOFT MATTER 2020; 16:9121-9127. [PMID: 32914808 DOI: 10.1039/d0sm01311k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We demonstrate the preparation of colloidal crystals at nematic liquid crystal-air interfaces by simultaneous photopolymerization and assembly. Polymer colloids are produced by polymerization-induced phase separation of 2-hydroxyethyl methacrylate in the non-reactive liquid crystal (LC) 4-cyano-4'-pentylbiphenyl (5CB) using an open-cell setup. Colloids adsorbed to the nematic 5CB-air interface form non-close-packed hexagonal crystals that cover the entire interface area. We examine the mechanism of growth and assembly for the preparation of LC-templated interfacial colloidal superstructures.
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Affiliation(s)
- Xiaoshuang Wei
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA.
| | - Nicholas Sbalbi
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA.
| | - Laura C Bradley
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA.
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46
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Tang R, Umemori K, Rabin J, Alsberg E. Bi-functional nanoparticle-stabilized hydrogel colloidosomes as both extracellular matrix and bioactive factor delivery vehicle. ADVANCED THERAPEUTICS 2020; 3. [PMID: 34327284 DOI: 10.1002/adtp.202000156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Maintaining both cell-cell and cell-extracellular matrix (ECM) interactions is often a critical component of three-dimensional (3D) tissue regeneration. In high-density cell condensation systems, lack of appropriate cell-ECM interactions can result in limited and/or slow cell differentiation and tissue formation. To address these problems, a colloidosome microsphere system that is composed of a gelatin hydrogel core and a porous nanoparticle shell is developed. The colloidosome microsphere functions as an ECM and morphogen carrier for the induction of cartilage formation of high-density human mesenchymal stem cell (hMSC) in 3D cultures. With the protection of the nanoparticle shell, the colloidosome microspheres can be readily suspended in aqueous solution without clumping, thus incorporated homogeneously within high-density cell condensations. The gelatin-based colloidosome microspheres stimulate chondrogenesis of hMSCs and degrade rapidly to facilitate ECM remodeling for new tissue formation. When loaded with human transforming growth factor-β1, a potent chondrogenic morphogen, the colloidosomes serve as a bioactive factor delivery vehicle as well. The dual functionality of the colloidosomes as an ECM and a growth factor carrier effectively supports the chondrogenic differentiation of high-density hMSC condensations. These capabilities render the colloidosomes a promising platform system amenable to large-scale production of high-density 3D tissue culture constructs.
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Affiliation(s)
- Rui Tang
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Kentaro Umemori
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Jacob Rabin
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Eben Alsberg
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
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47
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Fernández-Serrano M, Routh AF, Ríos F, Caparrós-Salvador F, Alhaj Salih Ortega M. Calcium Alginate as a Novel Sealing Agent for Colloidosomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:8398-8406. [PMID: 32633974 DOI: 10.1021/acs.langmuir.0c00724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report on the preparation of colloidosomes formed with a poly(methyl methacrylate-co-butyl acrylate) latex shell, sealed using calcium alginate as a novel nontoxic and biodegradable sealing agent. The aim is to encapsulate enzymes in detergent formulations. The proposed method, with vegetable oil as the continuous phase, avoids the use of harmful organic solvents. Allura Red has been used as a water-soluble dye, in the core, to analyze the influence of variables such as sodium alginate and latex concentrations on the sealing and release profiles. After formation, the capsules were dispersed in either water or propylene glycol. The capsules have been examined using optical, confocal, and scanning electron microscopies. Working with the highest sodium alginate concentration and latex volume, the encapsulation efficiency is between 60 and 80%. Propylene glycol enables a better dispersion of the capsules compared with water. Dye release data have been fitted to exponential and Michaelis-Menten-type equations, leading to kinetic parameters that allow the simulation of the release process.
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Affiliation(s)
- Mercedes Fernández-Serrano
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, Campus Fuentenueva, Sin Número, Granada 18071, Spain
| | - Alexander F Routh
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, United Kingdom
| | - Francisco Ríos
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, Campus Fuentenueva, Sin Número, Granada 18071, Spain
| | - Francisco Caparrós-Salvador
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, Campus Fuentenueva, Sin Número, Granada 18071, Spain
| | - Mariam Alhaj Salih Ortega
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, Campus Fuentenueva, Sin Número, Granada 18071, Spain
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48
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Pérez-Juárez D, Sánchez R, Díaz-Leyva P, Kozina A. Equilibrium clustering of colloidal particles at an oil/water interface due to competing long-range interactions. J Colloid Interface Sci 2020; 571:232-238. [PMID: 32200167 DOI: 10.1016/j.jcis.2020.03.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 03/07/2020] [Accepted: 03/09/2020] [Indexed: 10/24/2022]
Abstract
HYPOTHESIS Colloids at fluid interfaces organize according to inter-particle interactions. The main contributions to an effective interaction potential are expected to be electrostatic dipole-dipole repulsion and capillary attraction due to fluid interface deformation. When these interactions are weak, a secondary minimum in the particle pair interaction potential is expected. EXPERIMENTS Clean bare silica particles were deposited at an oil/water interface and their organization as well as dynamics were observed under a light microscope and analyzed in terms of radial distribution function and mean squared displacement. FINDINGS Weak long-range competing interactions between colloids at an oil/water interface result in cluster formation. The clusters have a liquid-like structure and grow with increasing particle packing fraction. System 'ergodicity' suggests near-equilibrium assembly, which is confirmed by free particle dynamics outside the clusters. The interplay between dipole-dipole repulsion and capillary attraction responsible for the cluster formation is reflected in a secondary minimum of the effective interaction potential predicted theoretically but inaccessible experimentally from collective particle properties prior to this work.
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Affiliation(s)
- David Pérez-Juárez
- Instituto de Química, Universidad Nacional Autónoma de México, P.O. Box 70-213, 04510 Mexico City, Mexico
| | - Rodrigo Sánchez
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, San Rafael Atlixco 186, 09340 Mexico City, Mexico
| | - Pedro Díaz-Leyva
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, San Rafael Atlixco 186, 09340 Mexico City, Mexico
| | - Anna Kozina
- Instituto de Química, Universidad Nacional Autónoma de México, P.O. Box 70-213, 04510 Mexico City, Mexico.
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Valls A, Castillo A, Porcar R, Hietala S, Altava B, Garcı A-Verdugo E, Luis SV. Urea-Based Low-Molecular-Weight Pseudopeptidic Organogelators for the Encapsulation and Slow Release of ( R)-Limonene. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7051-7061. [PMID: 32511911 DOI: 10.1021/acs.jafc.0c01184] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Low-molecular-weight compounds containing alkylurea fragments attached to the amino end of different miminalistic pseudopeptidic structures have been shown to be excellent organogelators in a variety of organic solvents and liquid organic compounds of different nature. The formation of gels in this work is defined through rheological measurements for those cases where G' > G''. Both the topology and the symmetry of the corresponding urea compounds play a role in defining their organogelator behavior. This can also be tuned by the presence of additional supramolecular guests, as is the case for suberic acid. These compounds also achieve the gelation of relevant active substances such as terpene natural oils and complex mixtures of flavors and fragrances. This provides a simple and mass-efficient supramolecular system for the quantitative encapsulation of active substances, without the need for any additional solvent or complex processes, and their consequent controlled release.
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Affiliation(s)
- Adriana Valls
- Department of Inorganic and Organic Chemistry, ESTCE, Universitat Jaume I, Avda. Sos Baynat, s/n, 12071, Castellón, Spain
| | - Adrián Castillo
- Department of Inorganic and Organic Chemistry, ESTCE, Universitat Jaume I, Avda. Sos Baynat, s/n, 12071, Castellón, Spain
| | - Raúl Porcar
- Department of Inorganic and Organic Chemistry, ESTCE, Universitat Jaume I, Avda. Sos Baynat, s/n, 12071, Castellón, Spain
| | - Sami Hietala
- Department of Chemistry, University of Helsinki, Helsinki, Finland
| | - Belén Altava
- Department of Inorganic and Organic Chemistry, ESTCE, Universitat Jaume I, Avda. Sos Baynat, s/n, 12071, Castellón, Spain
| | - Eduardo Garcı A-Verdugo
- Department of Inorganic and Organic Chemistry, ESTCE, Universitat Jaume I, Avda. Sos Baynat, s/n, 12071, Castellón, Spain
| | - Santiago V Luis
- Department of Inorganic and Organic Chemistry, ESTCE, Universitat Jaume I, Avda. Sos Baynat, s/n, 12071, Castellón, Spain
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Arrabito G, Ferrara V, Bonasera A, Pignataro B. Artificial Biosystems by Printing Biology. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907691. [PMID: 32511894 DOI: 10.1002/smll.201907691] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 05/09/2020] [Indexed: 05/09/2023]
Abstract
The continuous progress of printing technologies over the past 20 years has fueled the development of a plethora of applications in materials sciences, flexible electronics, and biotechnologies. More recently, printing methodologies have started up to explore the world of Artificial Biology, offering new paradigms in the direct assembly of Artificial Biosystems (small condensates, compartments, networks, tissues, and organs) by mimicking the result of the evolution of living systems and also by redesigning natural biological systems, taking inspiration from them. This recent progress is reported in terms of a new field here defined as Printing Biology, resulting from the intersection between the field of printing and the bottom up Synthetic Biology. Printing Biology explores new approaches for the reconfigurable assembly of designed life-like or life-inspired structures. This work presents this emerging field, highlighting its main features, i.e., printing methodologies (from 2D to 3D), molecular ink properties, deposition mechanisms, and finally the applications and future challenges. Printing Biology is expected to show a growing impact on the development of biotechnology and life-inspired fabrication.
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Affiliation(s)
- Giuseppe Arrabito
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze, Building 17, Palermo, 90128, Italy
| | - Vittorio Ferrara
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze, Building 17, Palermo, 90128, Italy
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria, 6, Catania, 95125, Italy
| | - Aurelio Bonasera
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze, Building 17, Palermo, 90128, Italy
| | - Bruno Pignataro
- Department of Physics and Chemistry - Emilio Segrè, University of Palermo, Viale delle Scienze, Building 17, Palermo, 90128, Italy
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