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Wiita EG, Toprakcioglu Z, Jayaram AK, Knowles TPJ. Formation of Nanofibrillar Self-Healing Hydrogels Using Antimicrobial Peptides. ACS APPLIED MATERIALS & INTERFACES 2024; 16:46167-46176. [PMID: 39171944 PMCID: PMC11378157 DOI: 10.1021/acsami.4c11542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
The rise of drug-resistant microorganisms has prompted the development of innovative strategies with the aim of addressing this challenge. Among the alternative approaches gaining increased attention are antimicrobial peptides (AMPs), a group of peptides with the ability to combat microbial pathogens. Here, we investigated a small peptide, KLVFF, derived from the Alzheimer's amyloid-β (Aβ) protein. While Aβ has been associated with the development of neurodegenerative diseases, the core part of the Aβ protein, namely the Aβ 16-20 fragment, has also been exploited to obtain highly functional biomaterials. In this study we found that KLVFF is capable of self-assembling into a fibrillar network to form a self-healing hydrogel. Moreover, this small peptide can undergo a transition from a gel to a liquid state following application of shear stress, in a reversible manner. As an AMP, this material exhibited both antibacterial and antifungal properties while remaining highly biocompatible and noncytotoxic toward mammalian cells. The propensity of the KLVFF hydrogel to rapidly assemble into highly ordered macroscopic structures makes it an ideal candidate for biomedical applications necessitating antimicrobial activity, such as wound healing.
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Affiliation(s)
- Elizabeth G Wiita
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Zenon Toprakcioglu
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Akhila K Jayaram
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Cavendish Laboratory, Department of Physics, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, U.K
| | - Tuomas P J Knowles
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Cavendish Laboratory, Department of Physics, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, U.K
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2
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Wiita EG, Toprakcioglu Z, Jayaram AK, Knowles TPJ. Selenium-silk microgels as antifungal and antibacterial agents. NANOSCALE HORIZONS 2024; 9:609-619. [PMID: 38288551 PMCID: PMC10962633 DOI: 10.1039/d3nh00385j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/29/2023] [Indexed: 03/26/2024]
Abstract
Antimicrobial resistance is a leading threat to global health. Alternative therapeutics to combat the rise in drug-resistant strains of bacteria and fungi are thus needed, but the development of new classes of small molecule therapeutics has remained challenging. Here, we explore an orthogonal approach and address this issue by synthesising micro-scale, protein colloidal particles that possess potent antimicrobial properties. We describe an approach for forming silk-based microgels that contain selenium nanoparticles embedded within the protein scaffold. We demonstrate that these materials have both antibacterial and antifungal properties while, crucially, also remaining highly biocompatible with mammalian cell lines. By combing the nanoparticles with silk, the protein microgel is able to fulfill two critical functions; it protects the mammalian cells from the cytotoxic effects of the bare nanoparticles, while simultaneously serving as a carrier for microbial eradication. Furthermore, since the antimicrobial activity originates from physical contact, bacteria and fungi are unlikely to develop resistance to our hybrid biomaterials, which remains a critical issue with current antibiotic and antifungal treatments. Therefore, taken together, these results provide the basis for innovative antimicrobial materials that can target drug-resistant microbial infections.
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Affiliation(s)
- Elizabeth G Wiita
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Lenseld Road, Cambridge CB2 1EW, UK.
| | - Zenon Toprakcioglu
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Lenseld Road, Cambridge CB2 1EW, UK.
| | - Akhila K Jayaram
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Lenseld Road, Cambridge CB2 1EW, UK.
- Cavendish Laboratory, Department of Physics, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, UK
| | - Tuomas P J Knowles
- Centre for Misfolding Diseases, Yusuf Hamied Department of Chemistry, University of Cambridge, Lenseld Road, Cambridge CB2 1EW, UK.
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Verma S, Khanna V, Kumar S, Kumar S. The Art of Building Living Tissues: Exploring the Frontiers of Biofabrication with 3D Bioprinting. ACS OMEGA 2023; 8:47322-47339. [PMID: 38144142 PMCID: PMC10734012 DOI: 10.1021/acsomega.3c02600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 09/11/2023] [Indexed: 12/26/2023]
Abstract
The scope of three-dimensional printing is expanding rapidly, with innovative approaches resulting in the evolution of state-of-the-art 3D bioprinting (3DbioP) techniques for solving issues in bioengineering and biopharmaceutical research. The methods and tools in 3DbioP emphasize the extrusion process, bioink formulation, and stability of the bioprinted scaffold. Thus, 3DbioP technology augments 3DP in the biological world by providing technical support to regenerative therapy, drug delivery, bioengineering of prosthetics, and drug kinetics research. Besides the above, drug delivery and dosage control have been achieved using 3D bioprinted microcarriers and capsules. Developing a stable, biocompatible, and versatile bioink is a primary requisite in biofabrication. The 3DbioP research is breaking the technical barriers at a breakneck speed. Numerous techniques and biomaterial advancements have helped to overcome current 3DbioP issues related to printability, stability, and bioink formulation. Therefore, this Review aims to provide an insight into the technical challenges of bioprinting, novel biomaterials for bioink formulation, and recently developed 3D bioprinting methods driving future applications in biofabrication research.
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Affiliation(s)
- Saurabh Verma
- Department
of Health Research-Multi-Disciplinary Research Unit, King George’s Medical University, Lucknow, Uttar Pradesh 226003, India
| | - Vikram Khanna
- Department
of Oral Medicine and Radiology, King George’s
Medical University, Lucknow, Uttar Pradesh 226003, India
| | - Smita Kumar
- Department
of Health Research-Multi-Disciplinary Research Unit, King George’s Medical University, Lucknow, Uttar Pradesh 226003, India
| | - Sumit Kumar
- Department
of Health Research-Multi-Disciplinary Research Unit, King George’s Medical University, Lucknow, Uttar Pradesh 226003, India
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Yang J, Gu Z, Cheng L, Li Z, Li C, Hong Y, Qian JY. Formation Mechanism of Starch-Based Double Emulsions from the Interfacial Perspective. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:17154-17164. [PMID: 37974415 DOI: 10.1021/acs.langmuir.3c02162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Double emulsions are of significant practical value in protecting the core material owing to their multicomponent structure and have thus been applied in various fields, such as food, cosmetics, and drugs. However, the mechanism of double emulsion formation by native starch is not well established. Herein, we demonstrate a facile route to develop type-A, type-B, and type-C double emulsions using native starch and develop an innovative design for a carrier. Interfacial interaction, enthalpy changes of starch, and interfacial properties are key factors governing the formation of double emulsions and controlling the type of double emulsions formed. Therefore, the results of this study provide a better understanding of how and what type of starch-based double emulsions are formed.
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Affiliation(s)
- Jie Yang
- School of Food Science and Engineering, Jiangnan University, Wuxi 214122, China
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Zhengbiao Gu
- School of Food Science and Engineering, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Li Cheng
- School of Food Science and Engineering, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Zhaofeng Li
- School of Food Science and Engineering, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Caiming Li
- School of Food Science and Engineering, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Yan Hong
- School of Food Science and Engineering, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China
| | - Jian-Ya Qian
- School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
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Zhang H, Yang J, Sun R, Han S, Yang Z, Teng L. Microfluidics for nano-drug delivery systems: From fundamentals to industrialization. Acta Pharm Sin B 2023; 13:3277-3299. [PMID: 37655333 PMCID: PMC10466004 DOI: 10.1016/j.apsb.2023.01.018] [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: 10/28/2022] [Revised: 11/10/2022] [Accepted: 12/15/2022] [Indexed: 01/27/2023] Open
Abstract
In recent years, owing to the miniaturization of the fluidic environment, microfluidic technology offers unique opportunities for the implementation of nano drug delivery systems (NDDSs) production processes. Compared with traditional methods, microfluidics improves the controllability and uniformity of NDDSs. The fast mixing and laminar flow properties achieved in the microchannels can tune the physicochemical properties of NDDSs, including particle size, distribution and morphology, resulting in narrow particle size distribution and high drug-loading capacity. The success of lipid nanoparticles encapsulated mRNA vaccines against coronavirus disease 2019 by microfluidics also confirmed its feasibility for scaling up the preparation of NDDSs via parallelization or numbering-up. In this review, we provide a comprehensive summary of microfluidics-based NDDSs, including the fundamentals of microfluidics, microfluidic synthesis of NDDSs, and their industrialization. The challenges of microfluidics-based NDDSs in the current status and the prospects for future development are also discussed. We believe that this review will provide good guidance for microfluidics-based NDDSs.
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Affiliation(s)
- Huan Zhang
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Jie Yang
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Rongze Sun
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Songren Han
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Zhaogang Yang
- School of Life Sciences, Jilin University, Changchun 130012, China
| | - Lesheng Teng
- School of Life Sciences, Jilin University, Changchun 130012, China
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Archer RJ, Hamada S, Shimizu R, Nomura SIM. Scalable Synthesis of Planar Macroscopic Lipid-Based Multi-Compartment Structures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:4863-4871. [PMID: 36973945 PMCID: PMC10100540 DOI: 10.1021/acs.langmuir.2c02859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/28/2023] [Indexed: 06/18/2023]
Abstract
As life evolved, the path from simple single cell organisms to multicellular enabled increasingly complex functionalities. The spatial separation of reactions at the micron scale achieved by cellular structures allowed diverse and scalable implementation in biomolecular systems. Mimicking such spatially separated domains in a scalable approach could open a route to creating synthetic cell-like structured systems. Here, we report a facile and scalable method to create multicellular-like, multi-compartment (MC) structures. Aqueous droplet-based compartments ranging from 50 to 400 μm were stabilized and connected together by hydrophobic layers composed of phospholipids and an emulsifier. Planar centimeter-scale MC structures were formed by droplet deposition on a water interface. Further, the resulting macroscopic shapes were shown to be achieved by spatially controlled deposition. To demonstrate configurability and potential versatility, MC assemblies of both homogeneous and mixed compartment types were shown. Notably, magnetically heterogeneous systems were achieved by the inclusion of magnetic nanoparticles in defined sections. Such structures demonstrated actuated motion with structurally imparted directionality. These novel and functionalized structures exemplify a route toward future applications including compartmentally assembled "multicellular" molecular robots.
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Wang Y, Dong Y, Liu H, Yin W, Guo T, Yuan H, Meng T. Compartmentalized Aqueous-in-Aqueous Droplets for Flow Biocatalysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5009-5016. [PMID: 35049284 DOI: 10.1021/acsami.1c22089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Compartmentalized bioreactions are vital for living cells to regulate biological events since they facilitate isolated yet orchestrated reactions and releases of biological molecules. Engineering bioreactions in compartmentalized droplet bioreactors not only promotes understanding of biological cells but also enhances control in synthetic biology systems. A typical droplet bioreactor is enclosed by impermeable water-in-oil interfaces, which inhibit the reaction rate with the accumulation of aqueous products. This work constructs aqueous two-phase system (ATPS) droplet bioreactors featuring selectively permeable interfaces, which are capable of sequestering reagents in aqueous droplets while constantly releasing products into the aqueous surroundings. Benefiting from this selective permeability, the proposed droplet bioreactor achieves a conversion rate up to 63.2% compared to the 17.9% from the impermeable aqueous-in-oil droplet reactor via coupled reaction-separation. More importantly, it is revealed that uniform aqueous-in-aqueous droplet clusters by microfluidics exhibit an up to 6-fold reaction rate enhancement compared to non-microfluidic ATPS reactors, indicating a unique flow interface effect in droplet clusters. This work offers a new route to allow enzymatic reactions to benefit from efficient flow chemistry via optimized aqueous-aqueous interfaces.
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Affiliation(s)
- Yiying Wang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Yuman Dong
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Huanyu Liu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Wei Yin
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Ting Guo
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Hao Yuan
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
| | - Tao Meng
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Sciences and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P.R. China
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Carvalho BG, Ceccato BT, Michelon M, Han SW, de la Torre LG. Advanced Microfluidic Technologies for Lipid Nano-Microsystems from Synthesis to Biological Application. Pharmaceutics 2022; 14:141. [PMID: 35057037 PMCID: PMC8781930 DOI: 10.3390/pharmaceutics14010141] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/23/2021] [Accepted: 12/30/2021] [Indexed: 12/17/2022] Open
Abstract
Microfluidics is an emerging technology that can be employed as a powerful tool for designing lipid nano-microsized structures for biological applications. Those lipid structures can be used as carrying vehicles for a wide range of drugs and genetic materials. Microfluidic technology also allows the design of sustainable processes with less financial demand, while it can be scaled up using parallelization to increase production. From this perspective, this article reviews the recent advances in the synthesis of lipid-based nanostructures through microfluidics (liposomes, lipoplexes, lipid nanoparticles, core-shell nanoparticles, and biomimetic nanovesicles). Besides that, this review describes the recent microfluidic approaches to produce lipid micro-sized structures as giant unilamellar vesicles. New strategies are also described for the controlled release of the lipid payloads using microgels and droplet-based microfluidics. To address the importance of microfluidics for lipid-nanoparticle screening, an overview of how microfluidic systems can be used to mimic the cellular environment is also presented. Future trends and perspectives in designing novel nano and micro scales are also discussed herein.
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Affiliation(s)
- Bruna G. Carvalho
- Department of Material and Bioprocess Engineering, School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, Brazil; (B.G.C.); (B.T.C.)
| | - Bruno T. Ceccato
- Department of Material and Bioprocess Engineering, School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, Brazil; (B.G.C.); (B.T.C.)
| | - Mariano Michelon
- School of Chemical and Food Engineering, Federal University of Rio Grande (FURG), Rio Grande 96203-900, Brazil;
| | - Sang W. Han
- Center for Cell Therapy and Molecular, Department of Biophysics, Federal University of São Paulo (UNIFESP), São Paulo 04044-010, Brazil;
| | - Lucimara G. de la Torre
- Department of Material and Bioprocess Engineering, School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, Brazil; (B.G.C.); (B.T.C.)
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Cazimoglu I, Booth MJ, Bayley H. A Lipid-Based Droplet Processor for Parallel Chemical Signals. ACS NANO 2021; 15:20214-20224. [PMID: 34788543 PMCID: PMC8717631 DOI: 10.1021/acsnano.1c08217] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/08/2021] [Indexed: 05/19/2023]
Abstract
A key goal of bottom-up synthetic biology is to construct cell- and tissue-like structures. Underpinning cellular life is the ability to process several external chemical signals, often in parallel. Until now, cell- and tissue-like structures have been constructed with no more than one signaling pathway. Many pathways rely on signal transport across membranes using protein nanopores. However, such systems currently suffer from the slow transport of molecules. We have optimized the application of these nanopores to permit fast molecular transport, which has allowed us to construct a processor for parallel chemical signals from the bottom up in a modular fashion. The processor comprises three aqueous droplet compartments connected by lipid bilayers and operates in an aqueous environment. It can receive two chemical signals from the external environment, process them orthogonally, and then produce a distinct output for each signal. It is suitable for both sensing and enzymatic processing of environmental signals, with fluorescence and molecular outputs. In the future, such processors could serve as smart drug delivery vehicles or as modules within synthetic tissues to control their behavior in response to external chemical signals.
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Park D, Kim H, Kim JW. Microfluidic production of monodisperse emulsions for cosmetics. BIOMICROFLUIDICS 2021; 15:051302. [PMID: 34733378 PMCID: PMC8550801 DOI: 10.1063/5.0057733] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 10/11/2021] [Indexed: 05/06/2023]
Abstract
Droplet-based microfluidic technology has enabled the production of emulsions with high monodispersity in sizes ranging from a few to hundreds of micrometers. Taking advantage of this technology, attempts to generate monodisperse emulsion drops with high drug loading capacity, ordered interfacial structure, and multi-functionality have been made in the cosmetics industry. In this article, we introduce the practicality of the droplet-based microfluidic approach to the cosmetic industry in terms of innovation in productivity and marketability. Furthermore, we summarize some recent advances in the production of emulsion drops with enhanced mechanical interfacial stability. Finally, we discuss the future prospects of microfluidic technology in accordance with consumers' needs and industrial attributes.
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Affiliation(s)
- Daehwan Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hajeong Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jin Woong Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
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