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Sánchez PA, Cerrato A, Cerdà JJ, Bona-Casas C, Sintes T, Massó J. Dynamic response of a ferromagnetic nanofilament under rotating fields: effects of flexibility, thermal fluctuations and hydrodynamics. NANOSCALE 2024; 16:11724-11738. [PMID: 38864189 DOI: 10.1039/d4nr01034e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Using nonequilibrium computer simulations, we study the response of ferromagnetic nanofilaments, consisting of stabilized one dimensional chains of ferromagnetic nanoparticles, under external rotating magnetic fields. In difference with their analogous microscale and stiff counterparts, which have been actively studied in recent years, nonequilibrium properties of rather flexible nanoparticle filaments remain mostly unexplored. By progressively increasing the modeling details, we are able to evidence the qualitative impact of main interactions that can not be neglected at the nanoscale, showing that filament flexibility, thermal fluctuations and hydrodynamic interactions contribute independently to broaden the range of synchronous frequency response in this system. Furthermore, we also show the existence of a limited set of characteristic dynamic filament configurations and discuss in detail the asynchronous response, which at finite temperature becomes probabilistic.
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Affiliation(s)
- Pedro A Sánchez
- Physics Department, University of the Balearic Islands, 07122 Palma, Spain.
| | - Antonio Cerrato
- Physics Department, University of the Balearic Islands, 07122 Palma, Spain.
| | - Joan J Cerdà
- Physics Department, University of the Balearic Islands, 07122 Palma, Spain.
| | - Carles Bona-Casas
- Physics Department, University of the Balearic Islands, 07122 Palma, Spain.
| | - Tomás Sintes
- Instituto de Física Interdisciplinar y Sistemas Complejos, IFISC (UIB-CSIC), University of the Balearic Islands, 07122 Palma, Spain
| | - Joan Massó
- Physics Department, University of the Balearic Islands, 07122 Palma, Spain.
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2
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Latypova AA, Yaremenko AV, Pechnikova NA, Minin AS, Zubarev IV. Magnetogenetics as a promising tool for controlling cellular signaling pathways. J Nanobiotechnology 2024; 22:327. [PMID: 38858689 PMCID: PMC11163773 DOI: 10.1186/s12951-024-02616-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 06/04/2024] [Indexed: 06/12/2024] Open
Abstract
Magnetogenetics emerges as a transformative approach for modulating cellular signaling pathways through the strategic application of magnetic fields and nanoparticles. This technique leverages the unique properties of magnetic nanoparticles (MNPs) to induce mechanical or thermal stimuli within cells, facilitating the activation of mechano- and thermosensitive proteins without the need for traditional ligand-receptor interactions. Unlike traditional modalities that often require invasive interventions and lack precision in targeting specific cellular functions, magnetogenetics offers a non-invasive alternative with the capacity for deep tissue penetration and the potential for targeting a broad spectrum of cellular processes. This review underscores magnetogenetics' broad applicability, from steering stem cell differentiation to manipulating neuronal activity and immune responses, highlighting its potential in regenerative medicine, neuroscience, and cancer therapy. Furthermore, the review explores the challenges and future directions of magnetogenetics, including the development of genetically programmed magnetic nanoparticles and the integration of magnetic field-sensitive cells for in vivo applications. Magnetogenetics stands at the forefront of cellular manipulation technologies, offering novel insights into cellular signaling and opening new avenues for therapeutic interventions.
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Affiliation(s)
- Anastasiia A Latypova
- Institute of Future Biophysics, Dolgoprudny, 141701, Russia
- Moscow Center for Advanced Studies, Moscow, 123592, Russia
| | - Alexey V Yaremenko
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
- Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece.
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia.
| | - Nadezhda A Pechnikova
- Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece
- Saint Petersburg Pasteur Institute, Saint Petersburg, 197101, Russia
| | - Artem S Minin
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, 620108, Russia
| | - Ilya V Zubarev
- Institute of Future Biophysics, Dolgoprudny, 141701, Russia.
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3
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Huang G, Zhu G, Lin R, Chen W, Chen R, Sun Y, Chen L, Hong D, Chen L. Magnetotactic Bacteria AMB-1 with Active Deep Tumor Penetrability for NIR-II Photothermal Tumor Therapy. ACS OMEGA 2024; 9:23060-23068. [PMID: 38826521 PMCID: PMC11137709 DOI: 10.1021/acsomega.4c02914] [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: 03/26/2024] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 06/04/2024]
Abstract
The complex tumor structure and microenvironment such as abnormal tumor vasculature, dense tumor matrix, and elevated interstitial fluid pressure greatly hinder the penetration and retention of therapeutic agents in solid tumors. The development of an advanced method for robust penetration and retention of therapeutic agents in tumors is of great significance for efficient tumor treatments. In this work, we demonstrated that magnetotactic bacteria AMB-1 with hypoxic metabolism characteristics can actively penetrate the tumor to selectively colonize deep hypoxic regions, which emerge as a promising intelligent drug carrier. Furthermore, AMB-1 presents intrinsic second near-infrared (NIR-II) photothermal performance that can efficiently convert a 1064 nm laser into heat for tumor thermal ablation. We believe that our investigations not only develop a novel bacteria-based photothermal agent but also provide useful insights for the development of advanced tumor microbial therapies.
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Affiliation(s)
- Guoming Huang
- College
of Biological Science and Engineering, Fuzhou
University, Fuzhou 350116, P. R. China
| | - Guifen Zhu
- College
of Biological Science and Engineering, Fuzhou
University, Fuzhou 350116, P. R. China
| | - Ruipeng Lin
- College
of Biological Science and Engineering, Fuzhou
University, Fuzhou 350116, P. R. China
| | - Wenwen Chen
- College
of Biological Science and Engineering, Fuzhou
University, Fuzhou 350116, P. R. China
| | - Rong Chen
- College
of Biological Science and Engineering, Fuzhou
University, Fuzhou 350116, P. R. China
| | - Yutong Sun
- College
of Biological Science and Engineering, Fuzhou
University, Fuzhou 350116, P. R. China
| | - Liqun Chen
- College
of Biological Science and Engineering, Fuzhou
University, Fuzhou 350116, P. R. China
| | - Dengke Hong
- Department
of Vascular Surgery, Fujian Medical University
Union Hospital, Fuzhou 350001, P. R. China
| | - Lihong Chen
- Department
of Radiology, Fujian Medical University
Union Hospital, Fuzhou 350001, P. R. China
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4
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Yu HP, Zhu YJ. Guidelines derived from biomineralized tissues for design and construction of high-performance biomimetic materials: from weak to strong. Chem Soc Rev 2024; 53:4490-4606. [PMID: 38502087 DOI: 10.1039/d2cs00513a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Living organisms in nature have undergone continuous evolution over billions of years, resulting in the formation of high-performance fracture-resistant biomineralized tissues such as bones and teeth to fulfill mechanical and biological functions, despite the fact that most inorganic biominerals that constitute biomineralized tissues are weak and brittle. During the long-period evolution process, nature has evolved a number of highly effective and smart strategies to design chemical compositions and structures of biomineralized tissues to enable superior properties and to adapt to surrounding environments. Most biomineralized tissues have hierarchically ordered structures consisting of very small building blocks on the nanometer scale (nanoparticles, nanofibers or nanoflakes) to reduce the inherent weaknesses and brittleness of corresponding inorganic biominerals, to prevent crack initiation and propagation, and to allow high defect tolerance. The bioinspired principles derived from biomineralized tissues are indispensable for designing and constructing high-performance biomimetic materials. In recent years, a large number of high-performance biomimetic materials have been prepared based on these bioinspired principles with a large volume of literature covering this topic. Therefore, a timely and comprehensive review on this hot topic is highly important and contributes to the future development of this rapidly evolving research field. This review article aims to be comprehensive, authoritative, and critical with wide general interest to the science community, summarizing recent advances in revealing the formation processes, composition, and structures of biomineralized tissues, providing in-depth insights into guidelines derived from biomineralized tissues for the design and construction of high-performance biomimetic materials, and discussing recent progress, current research trends, key problems, future main research directions and challenges, and future perspectives in this exciting and rapidly evolving research field.
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Affiliation(s)
- Han-Ping Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
| | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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Pang B, Zheng H, Ma S, Tian J, Wen Y. Nitric oxide sensor NsrR is the key direct regulator of magnetosome formation and nitrogen metabolism in Magnetospirillum. Nucleic Acids Res 2024; 52:2924-2941. [PMID: 38197240 PMCID: PMC11014258 DOI: 10.1093/nar/gkad1230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 12/07/2023] [Accepted: 12/14/2023] [Indexed: 01/11/2024] Open
Abstract
Nitric oxide (NO) plays an essential role as signaling molecule in regulation of eukaryotic biomineralization, but its role in prokaryotic biomineralization is unknown. Magnetospirillum gryphiswaldense MSR-1, a model strain for studies of prokaryotic biomineralization, has the unique ability to form magnetosomes (magnetic organelles). We demonstrate here that magnetosome biomineralization in MSR-1 requires the presence of NsrRMg (an NO sensor) and a certain level of NO. MSR-1 synthesizes endogenous NO via nitrification-denitrification pathway to activate magnetosome formation. NsrRMg was identified as a global transcriptional regulator that acts as a direct activator of magnetosome gene cluster (MGC) and nitrification genes but as a repressor of denitrification genes. Specific levels of NO modulate DNA-binding ability of NsrRMg to various target promoters, leading to enhancing expression of MGC genes, derepressing denitrification genes, and repressing nitrification genes. These regulatory functions help maintain appropriate endogenous NO level. This study identifies for the first time the key transcriptional regulator of major MGC genes, clarifies the molecular mechanisms underlying NsrR-mediated NO signal transduction in magnetosome formation, and provides a basis for a proposed model of the role of NO in the evolutionary origin of prokaryotic biomineralization processes.
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Affiliation(s)
- Bo Pang
- State Key Laboratory of Animal Biotech Breeding and College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Haolan Zheng
- State Key Laboratory of Animal Biotech Breeding and College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Shijia Ma
- State Key Laboratory of Animal Biotech Breeding and College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jiesheng Tian
- State Key Laboratory of Animal Biotech Breeding and College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Ying Wen
- State Key Laboratory of Animal Biotech Breeding and College of Biological Sciences, China Agricultural University, Beijing 100193, China
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6
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Chades T, Le Fèvre R, Chebbi I, Blondeau K, Guyot F, Alphandéry E. Set-up of a pharmaceutical cell bank of Magnetospirillum gryphiswaldense MSR1 magnetotactic bacteria producing highly pure magnetosomes. Microb Cell Fact 2024; 23:70. [PMID: 38419080 PMCID: PMC10903015 DOI: 10.1186/s12934-024-02313-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/23/2024] [Indexed: 03/02/2024] Open
Abstract
We report the successful fabrication of a pharmaceutical cellular bank (PCB) containing magnetotactic bacteria (MTB), which belong to the Magnetospirillum gryphiswaldense MSR1 species. To produce such PCB, we amplified MTB in a minimal growth medium essentially devoid of other heavy metals than iron and of CMR (Carcinogenic, mutagenic and reprotoxic) products. The PCB enabled to acclimate MTB to such minimal growth conditions and then to produce highly pure magnetosomes composed of more than 99.9% of iron. The qualification of the bank as a PCB relies first on a preserved identity of the MTB compared with the original strain, second on genetic bacterial stability observed over 100 generations or under cryo-preservation for 16 months, third on a high level of purity highlighted by an absence of contaminating microorganisms in the PCB. Furthermore, the PCB was prepared under high-cell load conditions (9.108 cells/mL), allowing large-scale bacterial amplification and magnetosome production. In the future, the PCB could therefore be considered for commercial as well as research orientated applications in nanomedicine. We describe for the first-time conditions for setting-up an effective pharmaceutical cellular bank preserving over time the ability of certain specific cells, i.e. Magnetospirillum gryphiswaldense MSR1 MTB, to produce nano-minerals, i.e. magnetosomes, within a pharmaceutical setting.
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Affiliation(s)
- Théo Chades
- Nanobacterie SARL, 36 Boulevard Flandrin, 75116, Paris, France
- Institut de biologie intégrative de la cellule, UMR 9198, Université Paris Saclay, 1 Av. de la Terrasse, 91198, Gif sur Yvette, France
| | | | - Imène Chebbi
- Nanobacterie SARL, 36 Boulevard Flandrin, 75116, Paris, France
| | - Karine Blondeau
- Institut de biologie intégrative de la cellule, UMR 9198, Université Paris Saclay, 1 Av. de la Terrasse, 91198, Gif sur Yvette, France
| | - François Guyot
- Institut de minéralogie de physique des matériaux et de cosmochimie UMR 7590, Sorbonne Université, Université Pierre et Marie Curie, Muséum National d'Histoire Naturelle, 4 Place Jussieu, 75005, Paris, France
| | - Edouard Alphandéry
- Nanobacterie SARL, 36 Boulevard Flandrin, 75116, Paris, France.
- Institut de minéralogie de physique des matériaux et de cosmochimie UMR 7590, Sorbonne Université, Université Pierre et Marie Curie, Muséum National d'Histoire Naturelle, 4 Place Jussieu, 75005, Paris, France.
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7
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Tian F, Zhou Y, Ma Z, Tang R, Wang X. Organismal Function Enhancement through Biomaterial Intervention. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:377. [PMID: 38392750 PMCID: PMC10891834 DOI: 10.3390/nano14040377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 02/24/2024]
Abstract
Living organisms in nature, such as magnetotactic bacteria and eggs, generate various organic-inorganic hybrid materials, providing unique functionalities. Inspired by such natural hybrid materials, researchers can reasonably integrate biomaterials with living organisms either internally or externally to enhance their inherent capabilities and generate new functionalities. Currently, the approaches to enhancing organismal function through biomaterial intervention have undergone rapid development, progressing from the cellular level to the subcellular or multicellular level. In this review, we will concentrate on three key strategies related to biomaterial-guided bioenhancement, including biointerface engineering, artificial organelles, and 3D multicellular immune niches. For biointerface engineering, excess of amino acid residues on the surfaces of cells or viruses enables the assembly of materials to form versatile artificial shells, facilitating vaccine engineering and biological camouflage. Artificial organelles refer to artificial subcellular reactors made of biomaterials that persist in the cytoplasm, which imparts cells with on-demand regulatory ability. Moreover, macroscale biomaterials with spatiotemporal regulation characters enable the local recruitment and aggregation of cells, denoting multicellular niche to enhance crosstalk between cells and antigens. Collectively, harnessing the programmable chemical and biological attributes of biomaterials for organismal function enhancement shows significant potential in forthcoming biomedical applications.
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Affiliation(s)
- Fengchao Tian
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Yuemin Zhou
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Zaiqiang Ma
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Ruikang Tang
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Xiaoyu Wang
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
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8
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Gubanova EM, Usov NA. Ferromagnetic resonance spectra of linear magnetosome chains. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2024; 15:157-167. [PMID: 38352719 PMCID: PMC10862131 DOI: 10.3762/bjnano.15.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/12/2024] [Indexed: 02/16/2024]
Abstract
The ferromagnetic resonance (FMR) spectra of oriented and non-oriented assemblies of linear magnetosome chains are calculated by solving the stochastic Landau-Lifshitz equation. The dependence of the shape of the FMR spectrum of a dilute assembly of chains on the particle diameter, the number of particles in a chain, the distance between the centers of neighboring particles, the mutual orientation of the cubic axes of particle anisotropy, and the value of the magnetic damping constant is studied. It is shown that FMR spectra of non-oriented chain assemblies depend on the average particle diameter at a fixed thickness of the lipid magnetosome membrane, as well as on the value of the magnetic damping constant. At the same time, they are practically independent of the number Np of particles in the chain under the condition Np ≥ 10. The FMR spectra of non-oriented assemblies of magnetosome chains are compared with that of random clusters of interacting spherical magnetite nanoparticles. The shape of FMR spectra of both assemblies is shown to differ appreciably even at sufficiently large values of filling density of random clusters.
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Affiliation(s)
| | - Nikolai A Usov
- National Research Nuclear University “MEPhI”, 115409, Moscow, Russia
- Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences, IZMIRAN, 108480, Troitsk, Moscow, Russia
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9
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Benisch R, Andreas MP, Giessen TW. A widespread bacterial protein compartment sequesters and stores elemental sulfur. SCIENCE ADVANCES 2024; 10:eadk9345. [PMID: 38306423 PMCID: PMC10836720 DOI: 10.1126/sciadv.adk9345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/03/2024] [Indexed: 02/04/2024]
Abstract
Subcellular compartments often serve to store nutrients or sequester labile or toxic compounds. As bacteria mostly do not possess membrane-bound organelles, they often have to rely on protein-based compartments. Encapsulins are one of the most prevalent protein-based compartmentalization strategies found in prokaryotes. Here, we show that desulfurase encapsulins can sequester and store large amounts of crystalline elemental sulfur. We determine the 1.78-angstrom cryo-EM structure of a 24-nanometer desulfurase-loaded encapsulin. Elemental sulfur crystals can be formed inside the encapsulin shell in a desulfurase-dependent manner with l-cysteine as the sulfur donor. Sulfur accumulation can be influenced by the concentration and type of sulfur source in growth medium. The selectively permeable protein shell allows the storage of redox-labile elemental sulfur by excluding cellular reducing agents, while encapsulation substantially improves desulfurase activity and stability. These findings represent an example of a protein compartment able to accumulate and store elemental sulfur.
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Affiliation(s)
- Robert Benisch
- Program in Chemical Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Michael P. Andreas
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tobias W. Giessen
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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10
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Zuo L, Yang Y, Zhang H, Ma Z, Xin Q, Ding C, Li J. Bioinspired Multiscale Mineralization: From Fundamentals to Potential Applications. Macromol Biosci 2024; 24:e2300348. [PMID: 37689995 DOI: 10.1002/mabi.202300348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/06/2023] [Indexed: 09/11/2023]
Abstract
The wondrous and imaginative designs of nature have always been an inexhaustible treasure trove for material scientists. Throughout the long evolutionary process, biominerals with hierarchical structures possess some specific advantages such as outstanding mechanical properties, biological functions, and sensing performances, the formation of which (biomineralization) is delicately regulated by organic component. Provoked by the subtle structures and profound principles of nature, bioinspired functional minerals can be designed with the participation of organic molecules. Because of the designable morphology and functions, multiscale mineralization has attracted more and more attention in the areas of medicine, chemistry, biology, and material science. This review provides a summary of current advancements in this extending topic. The mechanisms underlying mineralization is first concisely elucidated. Next, several types of minerals are categorized according to their structural characteristic, as well as the different potential applications of these materials. At last, a comprehensive overview of future developments for bioinspired multiscale mineralization is given. Concentrating on the mechanism of fabrication and broad application prospects of multiscale mineralization, the hope is to provide inspirations for the design of other functional materials.
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Affiliation(s)
- Liangrui Zuo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yifei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Hongbo Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhengxin Ma
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Qiangwei Xin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chunmei Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Med-X Center for Materials, Sichuan University, Sichuan, 610041, China
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11
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Xie M, Shimogawa R, Liu Y, Zhang L, Foucher AC, Routh PK, Stach EA, Frenkel AI, Knecht MR. Biomimetic Control over Bimetallic Nanoparticle Structure and Activity via Peptide Capping Ligand Sequence. ACS NANO 2024; 18:3286-3294. [PMID: 38227802 DOI: 10.1021/acsnano.3c10016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
The controlled design of bimetallic nanoparticles (BNPs) is a key goal in tailoring their catalytic properties. Recently, biomimetic pathways demonstrated potent control over the distribution of different metals within BNPs, but a direct understanding of the peptide effect on the compositional distribution at the interparticle and intraparticle levels remains lacking. We synthesized two sets of PtAu systems with two peptides and correlated their structure, composition, and distributions with the catalytic activity. Structural and compositional analyses were performed by a combined machine learning-assisted refinement of X-ray absorption spectra and Z-contrast measurements by scanning transmission electron microscopy. The difference in the catalytic activities between nanoparticles synthesized with different peptides was attributed to the details of interparticle distribution of Pt and Au across these markedly heterogeneous systems, comprising Pt-rich, Au-rich, and Au core/Pt shell nanoparticles. The total amount of Pt in the shells of the BNPs was proposed to be the key catalytic activity descriptor. This approach can be extended to other systems of metals and peptides to facilitate the targeted design of catalysts with the desired activity.
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Affiliation(s)
- Maichong Xie
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
| | - Ryuichi Shimogawa
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
- Mitsubishi Chemical Corporation, Science & Innovation Center, 1000, Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan
| | - Yang Liu
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Lihua Zhang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Alexandre C Foucher
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Prahlad K Routh
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Eric A Stach
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Anatoly I Frenkel
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Marc R Knecht
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
- Dr. J.T. Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami, Miami, Florida 33136, United States
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12
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Dai Z, Guo X, Lin J, Wang X, He D, Zeng R, Meng J, Luo J, Delgado-Baquerizo M, Moreno-Jiménez E, Brookes PC, Xu J. Metallic micronutrients are associated with the structure and function of the soil microbiome. Nat Commun 2023; 14:8456. [PMID: 38114499 PMCID: PMC10730613 DOI: 10.1038/s41467-023-44182-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 12/04/2023] [Indexed: 12/21/2023] Open
Abstract
The relationship between metallic micronutrients and soil microorganisms, and thereby soil functioning, has been little explored. Here, we investigate the relationship between metallic micronutrients (Fe, Mn, Cu, Zn, Mo and Ni) and the abundance, diversity and function of soil microbiomes. In a survey across 180 sites in China, covering a wide range of soil conditions the structure and function of the soil microbiome are highly correlated with metallic micronutrients, especially Fe, followed by Mn, Cu and Zn. These results are robust to controlling for soil pH, which is often reported as the most important predictor of the soil microbiome. An incubation experiment with Fe and Zn additions for five different soil types also shows that increased micronutrient concentration affects microbial community composition and functional genes. In addition, structural equation models indicate that micronutrients positively contribute to the ecosystem productivity, both directly (micronutrient availability to plants) and, to a lesser extent, indirectly (via affecting the microbiome). Our findings highlight the importance of micronutrients in explaining soil microbiome structure and ecosystem functioning.
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Affiliation(s)
- Zhongmin Dai
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- The Rural Development Academy at Zhejiang University, Zhejiang University, Hangzhou, 310058, China
| | - Xu Guo
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Jiahui Lin
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Xiu Wang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Dan He
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Rujiong Zeng
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Jun Meng
- Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environmental and Natural Resources, Zhejiang University of Science and Technology, Hangzhou, 310023, China
| | - Jipeng Luo
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico. Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Av. Reina Mercedes 10, E-41012, Sevilla, Spain
| | - Eduardo Moreno-Jiménez
- Department of Agricultural and Food Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid, 28049, Madrid, Spain
- Institute for Advanced Research in Chemical Sciences, Faculty of Sciences, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Philip C Brookes
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China.
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China.
- The Rural Development Academy at Zhejiang University, Zhejiang University, Hangzhou, 310058, China.
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13
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Qi J, Wang Z, Wen X, Tan W, Yuan Y, Yue T. Nanosilver Embedded in a Magnetosome Nanoflower to Enhance Antibacterial Activity for Wound Dressing Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48882-48891. [PMID: 37823552 DOI: 10.1021/acsami.3c08483] [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: 10/13/2023]
Abstract
The natural biofilm on magnetosomes obtained from the biomineralization of magnetotactic bacteria, which replaced a complex chemical modification process on the surface of Fe3O4, can be used as the organic component and copper(II) ions as the inorganic component to form organic-inorganic nanoflowers in phosphate systems. Characterization by scanning electron microscopy, Fourier transform infrared spectroscopy, and vibrating-sample magnetometry proved that magnetic nanoflowers loaded with silver ions (Ag/MN-Cu×NFs) were successfully fabricated. In vitro antibacterial experiments demonstrated that Ag/MN-Cu×NFs displayed strong antibacterial effects against Escherichia coli and Staphylococcus aureus, with minimum inhibitory concentrations of 10 and 80 μg/mL, respectively. Ag/MN-Cu×NFs, which possessed good biocompatibility as confirmed by cytotoxicity and hemolysis tests, were able to promote wound healing in the face of bacterial infection in vivo without causing toxicity to major organs. Therefore, magnetosomes as a natural carrier have great application potential in the synthesis of multifunctional magnetosomes by direct hybridization with a target substance.
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Affiliation(s)
- Jianrui Qi
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Zewei Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Xin Wen
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Weiteng Tan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
- College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
- College of Food Science and Technology, Northwest University, Xi'an 710069, China
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14
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Chen H, Zhou T, Li S, Feng J, Li W, Li L, Zhou X, Wang M, Li F, Zhao X, Ren L. Living Magnetotactic Microrobots Based on Bacteria with a Surface-Displayed CRISPR/Cas12a System for Penaeus Viruses Detection. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47930-47938. [PMID: 37811735 DOI: 10.1021/acsami.3c09690] [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: 10/10/2023]
Abstract
Bacterial microrobots are an emerging living material in the field of diagnostics. However, it is an important challenge to make bacterial microrobots with both controlled motility and specific functions. Herein, magnetically driven diagnostic bacterial microrobots are prepared by standardized and modular synthetic biology methods. To ensure mobility, the Mms6 protein is displayed on the surface of bacteria and is exploited for magnetic biomineralization. This gives the bacterial microrobot the ability to cruise flexibly and rapidly with a magnetization intensity up to about 18.65 emu g-1. To achieve the diagnostic function, the Cas12a protein is displayed on the bacterial surface and is used for aquatic pathogen nucleic acid detection. This allows the bacterial microrobot to achieve sensitive, rapid, and accurate on-site nucleic acid detection, with detection limits of 8 copies μL-1 for decapod iridescent virus 1 (DIV1) and 7 copies μL-1 for white spot syndrome virus (WSSV). In particular, the diagnostic results based on the bacterial microrobots remained consistent with the gold standard test results when tested on shrimp tissue. This approach is a flexible and customizable strategy for building bacterial microrobots, providing a reliable and versatile solution for the design of bacterial microrobots.
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Affiliation(s)
- Haoxiang Chen
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Tao Zhou
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Shuo Li
- College of Life Science and Medicine, Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Junya Feng
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Wenlong Li
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Lihuang Li
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Xi Zhou
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Miao Wang
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
| | - Fang Li
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, P. R. China
| | - Xueqin Zhao
- College of Life Science and Medicine, Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Lei Ren
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, P. R. China
- State Key Lab of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, P. R. China
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15
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Wysokowski M, Luu RK, Arevalo S, Khare E, Stachowiak W, Niemczak M, Jesionowski T, Buehler MJ. Untapped Potential of Deep Eutectic Solvents for the Synthesis of Bioinspired Inorganic-Organic Materials. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:7878-7903. [PMID: 37840775 PMCID: PMC10568971 DOI: 10.1021/acs.chemmater.3c00847] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/02/2023] [Indexed: 10/17/2023]
Abstract
Since the discovery of deep eutectic solvents (DESs) in 2003, significant progress has been made in the field, specifically advancing aspects of their preparation and physicochemical characterization. Their low-cost and unique tailored properties are reasons for their growing importance as a sustainable medium for the resource-efficient processing and synthesis of advanced materials. In this paper, the significance of these designer solvents and their beneficial features, in particular with respect to biomimetic materials chemistry, is discussed. Finally, this article explores the unrealized potential and advantageous aspects of DESs, focusing on the development of biomineralization-inspired hybrid materials. It is anticipated that this article can stimulate new concepts and advances providing a reference for breaking down the multidisciplinary borders in the field of bioinspired materials chemistry, especially at the nexus of computation and experiment, and to develop a rigorous materials-by-design paradigm.
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Affiliation(s)
- Marcin Wysokowski
- Institute
of Chemical Technology, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland
- Laboratory
for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Rachel K. Luu
- Laboratory
for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Sofia Arevalo
- Laboratory
for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Eesha Khare
- Laboratory
for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
- Department
of Materials Science and Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
| | - Witold Stachowiak
- Institute
of Chemical Technology, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland
| | - Michał Niemczak
- Institute
of Chemical Technology, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland
| | - Teofil Jesionowski
- Institute
of Chemical Technology, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland
| | - Markus J. Buehler
- Laboratory
for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
- Center
for Computational Science and Engineering, Schwarzman College of Computing, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139, United States
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16
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Ren G, Zhou X, Long R, Xie M, Kankala RK, Wang S, Zhang YS, Liu Y. Biomedical applications of magnetosomes: State of the art and perspectives. Bioact Mater 2023; 28:27-49. [PMID: 37223277 PMCID: PMC10200801 DOI: 10.1016/j.bioactmat.2023.04.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/12/2023] [Accepted: 04/29/2023] [Indexed: 05/25/2023] Open
Abstract
Magnetosomes, synthesized by magnetotactic bacteria (MTB), have been used in nano- and biotechnological applications, owing to their unique properties such as superparamagnetism, uniform size distribution, excellent bioavailability, and easily modifiable functional groups. In this review, we first discuss the mechanisms of magnetosome formation and describe various modification methods. Subsequently, we focus on presenting the biomedical advancements of bacterial magnetosomes in biomedical imaging, drug delivery, anticancer therapy, biosensor. Finally, we discuss future applications and challenges. This review summarizes the application of magnetosomes in the biomedical field, highlighting the latest advancements and exploring the future development of magnetosomes.
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Affiliation(s)
- Gang Ren
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
- College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Xia Zhou
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Ruimin Long
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Maobin Xie
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 511436, China
| | - Ranjith Kumar Kankala
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, Fujian, 361021, China
| | - Shibin Wang
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
- College of Materials Science and Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, Fujian, 361021, China
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Yuangang Liu
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, Fujian, 361021, China
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17
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Wang T, Wu M, Cao L, Liu B. Organic functional substance engineered living materials for biomedical applications. Biomaterials 2023; 301:122248. [PMID: 37487360 DOI: 10.1016/j.biomaterials.2023.122248] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/09/2023] [Accepted: 07/16/2023] [Indexed: 07/26/2023]
Abstract
Modifying living materials with organic functional substances (OFS) is a convenient and effective strategy to control and monitor the transport, engraftment, and secretion processes in living organisms. OFSs, including small organic molecules and organic polymers, own the merit of design flexibility, satisfying performance, and excellent biocompatibility, which allow for living materials functionalization to realize real-time sensing, controlled drug release, enhanced biocompatibility, accurate diagnosis, and precise treatment. In this review, we discuss the different principles of OFS modification on living materials and demonstrate the applications of engineered living materials in health monitoring, drug delivery, wound healing, and tissue regeneration.
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Affiliation(s)
- Tongtong Wang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Min Wu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.
| | - Lei Cao
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Bin Liu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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18
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Gandarias L, Gubieda AG, Gorni G, Mathon O, Olivi L, Abad-Díaz-de-Cerio A, Fdez-Gubieda ML, Muela A, García-Prieto A. Intracellular transformation and disposal mechanisms of magnetosomes in macrophages and cancer cells. Biotechnol J 2023; 18:e2300173. [PMID: 37337924 DOI: 10.1002/biot.202300173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/24/2023] [Accepted: 06/14/2023] [Indexed: 06/21/2023]
Abstract
Magnetosomes are magnetite nanoparticles biosynthesized by magnetotactic bacteria. Given their potential clinical applications for the diagnosis and treatment of cancer, it is essential to understand what becomes of them once they are within the body. With this aim, here we have followed the intracellular long-term fate of magnetosomes in two cell types: cancer cells (A549 cell line), because they are the actual target for the therapeutic activity of the magnetosomes, and macrophages (RAW 264.7 cell line), because of their role at capturing foreign agents. It is shown that cells dispose of magnetosomes using three mechanisms: splitting them into daughter cells, excreting them to the surrounding environment, and degrading them yielding less or non-magnetic iron products. A deeper insight into the degradation mechanisms by means of time-resolved X-ray absorption near-edge structure (XANES) spectroscopy has allowed us to follow the intracellular biotransformation of magnetosomes by identifying and quantifying the iron species occurring during the process. In both cell types there is a first oxidation of magnetite to maghemite and then, earlier in macrophages than in cancer cells, ferrihydrite starts to appear. Given that ferrihydrite is the iron mineral phase stored in the cores of ferritin proteins, this suggests that cells use the iron released from the degradation of magnetosomes to load ferritin. Comparison of both cellular types evidences that macrophages are more efficient at disposing of magnetosomes than cancer cells, attributed to their role in degrading external debris and in iron homeostasis.
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Affiliation(s)
- Lucía Gandarias
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco - UPV/EHU, Leioa, Spain
- Bioscience and Biotechnology Institute of Aix-Marseille (BIAM), UMR7265, Aix-Marseille Université, CNRS, CEA Cadarache, Saint-Paul-lez-Durance, France
| | - Alicia G Gubieda
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco - UPV/EHU, Leioa, Spain
| | - Giulio Gorni
- BL22-CLAESS Beamline, ALBA Synchrotron, Barcelona, Spain
- Institute of Optics (IO-CSIC), c/ Serrano 121, Madrid, Spain
| | | | - Luca Olivi
- XAFS Beamline, Elettra Sincrotrone, Trieste, Italy
| | - Ana Abad-Díaz-de-Cerio
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco - UPV/EHU, Leioa, Spain
| | - M Luisa Fdez-Gubieda
- Dpto. Electricidad y Electrónica, Universidad del País Vasco - UPV/EHU, Leioa, Spain
| | - Alicia Muela
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco - UPV/EHU, Leioa, Spain
| | - Ana García-Prieto
- Dpto. Física Aplicada, Universidad del País Vasco - UPV/EHU, Bilbao, Spain
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19
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Winkler R, Ciria M, Ahmad M, Plank H, Marcuello C. A Review of the Current State of Magnetic Force Microscopy to Unravel the Magnetic Properties of Nanomaterials Applied in Biological Systems and Future Directions for Quantum Technologies. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2585. [PMID: 37764614 PMCID: PMC10536909 DOI: 10.3390/nano13182585] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
Magnetism plays a pivotal role in many biological systems. However, the intensity of the magnetic forces exerted between magnetic bodies is usually low, which demands the development of ultra-sensitivity tools for proper sensing. In this framework, magnetic force microscopy (MFM) offers excellent lateral resolution and the possibility of conducting single-molecule studies like other single-probe microscopy (SPM) techniques. This comprehensive review attempts to describe the paramount importance of magnetic forces for biological applications by highlighting MFM's main advantages but also intrinsic limitations. While the working principles are described in depth, the article also focuses on novel micro- and nanofabrication procedures for MFM tips, which enhance the magnetic response signal of tested biomaterials compared to commercial nanoprobes. This work also depicts some relevant examples where MFM can quantitatively assess the magnetic performance of nanomaterials involved in biological systems, including magnetotactic bacteria, cryptochrome flavoproteins, and magnetic nanoparticles that can interact with animal tissues. Additionally, the most promising perspectives in this field are highlighted to make the reader aware of upcoming challenges when aiming toward quantum technologies.
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Affiliation(s)
- Robert Winkler
- Christian Doppler Laboratory—DEFINE, Graz University of Technology, 8010 Graz, Austria; (R.W.); (H.P.)
| | - Miguel Ciria
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain;
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Margaret Ahmad
- Photobiology Research Group, IBPS, UMR8256 CNRS, Sorbonne Université, 75005 Paris, France;
| | - Harald Plank
- Christian Doppler Laboratory—DEFINE, Graz University of Technology, 8010 Graz, Austria; (R.W.); (H.P.)
- Graz Centre for Electron Microscopy, 8010 Graz, Austria
- Institute of Electron Microscopy, Graz University of Technology, 8010 Graz, Austria
| | - Carlos Marcuello
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain;
- Laboratorio de Microscopias Avanzadas (LMA), Universidad de Zaragoza, 50018 Zaragoza, Spain
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20
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Bradley B, Gomez-Cruz J, Escobedo C. Integrated Microfluidic-Electromagnetic System to Probe Single-Cell Magnetotaxis in Microconfinement. Bioengineering (Basel) 2023; 10:1034. [PMID: 37760136 PMCID: PMC10525280 DOI: 10.3390/bioengineering10091034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/11/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Magnetotactic bacteria have great potential for use in biomedical and environmental applications due to the ability to direct their navigation with a magnetic field. Applying and accurately controlling a magnetic field within a microscopic region during bacterial magnetotaxis studies at the single-cell level is challenging due to bulky microscope components and the inherent curvilinear field lines produced by commonly used bar magnets. In this paper, a system that integrates microfluidics and electromagnetic coils is presented for generating a linear magnetic field within a microenvironment compatible with microfluidics, enabling magnetotaxis analysis of groups or single microorganisms on-chip. The platform, designed and optimised via finite element analysis, is integrated into an inverted fluorescent microscope, enabling visualisation of bacteria at the single-cell level in microfluidic devices. The electromagnetic coils produce a linear magnetic field throughout a central volume where the microfluidic device containing the magnetotactic bacteria is located. The magnetic field, at this central position, can be accurately controlled from 1 to 10 mT, which is suitable for directing the navigation of magnetotactic bacteria. Potential heating of the microfluidic device from the operating coils was evaluated up to 2.5 A, corresponding to a magnetic field of 7.8 mT, for 10 min. The maximum measured heating was 8.4 °C, which enables analysis without altering the magnetotaxis behaviour or the average swimming speed of the bacteria. Altogether, this work provides a design, characterisation and experimental test of an integrated platform that enables the study of individual bacteria confined in microfluidics, under linear and predictable magnetic fields that can be easily and accurately applied and controlled.
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Affiliation(s)
| | | | - Carlos Escobedo
- Department of Chemical Engineering, Queen’s University, Kingston, ON K7L 3N6, Canada
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21
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Cosmidis J. Will tomorrow's mineral materials be grown? Microb Biotechnol 2023; 16:1713-1722. [PMID: 37522764 PMCID: PMC10443349 DOI: 10.1111/1751-7915.14298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 08/01/2023] Open
Abstract
Biomineralization, the capacity to form minerals, has evolved in a great diversity of bacterial lineages as an adaptation to different environmental conditions and biological functions. Microbial biominerals often display original properties (morphology, composition, structure, association with organics) that significantly differ from those of abiotically formed counterparts, altogether defining the 'mineral phenotype'. In principle, it should be possible to take advantage of microbial biomineralization processes to design and biomanufacture advanced mineral materials for a range of technological applications. In practice, this has rarely been done so far and only for a very limited number of biomineral types. This is mainly due to our poor understanding of the underlying molecular mechanisms controlling microbial biomineralization pathways, preventing us from developing bioengineering strategies aiming at improving biomineral properties for different applications. Another important challenge is the difficulty to upscale microbial biomineralization from the lab to industrial production. Addressing these challenges will require combining expertise from environmental microbiologists and geomicrobiologists, who have historically been working at the forefront of research on microbe-mineral interactions, alongside bioengineers and material scientists. Such interdisciplinary efforts may in the future allow the emergence of a mineral biomanufacturing industry, a critical tool towards the development more sustainable and circular bioeconomies.
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Affiliation(s)
- Julie Cosmidis
- Department of Earth SciencesUniversity of OxfordOxfordUK
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22
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Qi J, Zhao H, Ning M, Wang K, Yuan Y, Yue T. Strategy for Avoiding Alicyclobacillus acidocaldarius Contamination of Apple Juice by Adding Magnetosomes/Antibacterial Peptide Composites. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12819-12828. [PMID: 37596994 DOI: 10.1021/acs.jafc.3c03291] [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: 08/21/2023]
Abstract
The survival of Alicyclobacillus acidocaldarius (A. acidocaldarius) in fruit juice after pasteurization results in high economic losses due to unpalatability. The present work addressed this issue by inhibiting the growth of A. acidocaldarius in apple juice by the addition of MN@IDR-1018 composites formed of innate defense regulator 1018 (IDR-1018) antibacterial peptides that are coupled on the surfaces of magnetosomes (MN) via amidation reactions. MN@IDR-1018 was demonstrated to provide excellent antibacterial activity against A. acidoterrestris with a minimum inhibitory concentration of 100 μg mL-1, which led to cell death via membrane dissolution and rupture. In addition, this concentration of MN@IDR-1018 was proved to present low toxicity in mice and had no discernible effect on the color, flavor, and aroma of apple juice. This enables the active material to be extracted from the apple juice by the application of a magnetic field, thereby avoiding the development of antibiotic resistance.
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Affiliation(s)
- Jianrui Qi
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Hongfan Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Mengge Ning
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Kai Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
- College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
- College of Food Science and Technology, Northwest University, Xi'an 710069, China
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23
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Zhu X, Xu Z, Tang H, Nie L, Nie R, Wang R, Liu X, Huang X. Photosynthesis-Mediated Intracellular Biomineralization of Gold Nanoparticles inside Chlorella Cells towards Hydrogen Boosting under Green Light. Angew Chem Int Ed Engl 2023; 62:e202308437. [PMID: 37357971 DOI: 10.1002/anie.202308437] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 06/27/2023]
Abstract
Engineering living microorganisms to enhance green biomanufacturing for the development of sustainable and carbon-neutral energy strategies has attracted the interest of researchers from a wide range of scientific communities. In this study, we develop a method to achieve photosynthesis-mediated biomineralization of gold nanoparticles (AuNPs) inside Chlorella cells, where the photosynthesis-dominated reduction of Au3+ to Au0 allows the formed AuNPs to locate preferentially around the thylakoid membrane domain. In particular, we reveal that the electrons generated by the localized surface plasmon resonance of AuNPs could greatly augment hypoxic photosynthesis, which then promotes the generation and transferring of photoelectrons throughout the photosynthetic chain for augmented hydrogen production under sunlight. We demonstrate that the electrons from AuNPs could be directly transferred to hydrogenase, giving rise to an 8.3-fold enhancement of Chlorella cells hydrogen production independent of the cellular photosynthetic process under monochromatic 560 nm light irradiation. Overall, the photosynthesis-mediated intracellular biomineralization of AuNPs could contribute to a novel paradigm for functionalizing Chlorella cells to augment biomanufacturing.
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Affiliation(s)
- Xueying Zhu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
| | - Zhijun Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
| | - Haitao Tang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
| | - Lanheng Nie
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
| | - Rui Nie
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
| | - Ruifang Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
| | - Xiaoman Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
| | - Xin Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, Heilongjiang, China
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24
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Menghini S, Vizovisek M, Enders J, Schuerle S. Magnetospirillum magneticum triggers apoptotic pathways in human breast cancer cells. Cancer Metab 2023; 11:12. [PMID: 37559137 PMCID: PMC10410830 DOI: 10.1186/s40170-023-00313-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 07/24/2023] [Indexed: 08/11/2023] Open
Abstract
The use of bacteria in cancer immunotherapy has the potential to bypass many shortcomings of conventional treatments. The ability of anaerobic bacteria to preferentially accumulate and replicate in hypoxic regions of solid tumors, as a consequence of bacterial metabolic needs, is particularly advantageous and key to boosting their immunostimulatory therapeutic actions in situ. While several of these bacterial traits are well-studied, little is known about their competition for nutrients and its effect on cancer cells which could serve as another potent and innate antineoplastic action. Here, we explored the consequences of the iron-scavenging abilities of a particular species of bacteria, Magnetospirillum magneticum, which has been studied as a potential new class of bacteria for magnetically targeted bacterial cancer therapy. We investigated their influence in hypoxic regions of solid tumors by studying the consequential metabolic effects exerted on cancer cells. To do so, we established an in vitro co-culture system consisting of the bacterial strain AMB-1 incubated under hypoxic conditions with human breast cancer cells MDA-MB-231. We first quantified the number of viable cells after incubation with magnetotactic bacteria demonstrating a lower rate of cellular proliferation that correlated with increasing bacteria-to-cancer cells ratio. Further experiments showed increasing populations of apoptotic cells when cancer cells were incubated with AMB-1 over a period of 24 h. Analysis of the metabolic effects induced by bacteria suggest an increase in the activation of executioner caspases as well as changes in levels of apoptosis-related proteins. Finally, the level of several human apoptosis-related proteins was investigated, confirming a bacteria-dependent triggering of apoptotic pathways in breast cancer cells. Overall, our findings support that magnetotactic bacteria could act as self-replicating iron-chelating agents and indicate that they interfere with proliferation and lead to increased apoptosis of cancer cells. This bacterial feature could serve as an additional antineoplastic mechanism to reinforce current bacterial cancer therapies.
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Affiliation(s)
- Stefano Menghini
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland
| | - Matej Vizovisek
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland
| | - Jonathas Enders
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland
| | - Simone Schuerle
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland.
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25
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Li H, Xu Y, Wang Y, Cui Y, Lin J, Zhou Y, Tang S, Zhang Y, Hao H, Nie Z, Wang X, Tang R. Material-engineered bioartificial microorganisms enabling efficient scavenging of waterborne viruses. Nat Commun 2023; 14:4658. [PMID: 37537158 PMCID: PMC10400550 DOI: 10.1038/s41467-023-40397-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 07/26/2023] [Indexed: 08/05/2023] Open
Abstract
Material-based tactics have attracted extensive attention in driving the functional evolution of organisms. In aiming to design steerable bioartificial organisms to scavenge pathogenic waterborne viruses, we engineer Paramecium caudatum (Para), single-celled microorganisms, with a semiartificial and specific virus-scavenging organelle (VSO). Fe3O4 magnetic nanoparticles modified with a virus-capture antibody (MNPs@Ab) are integrated into the vacuoles of Para during feeding to produce VSOs, which persist inside Para without impairing their swimming ability. Compared with natural Para, which has no capture specificity and shows inefficient inactivation, the VSO-engineered Para (E-Para) specifically gathers waterborne viruses and confines them inside the VSOs, where the captured viruses are completely deactivated because the peroxidase-like nano-Fe3O4 produces virus-killing hydroxyl radicals (•OH) within acidic environment of VSO. After treatment, magnetized E-Para is readily recycled and reused, avoiding further contamination. Materials-based artificial organelles convert natural Para into a living virus scavenger, facilitating waterborne virus clearance without extra energy consumption.
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Affiliation(s)
- Huixin Li
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yanpeng Xu
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Yang Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, China
| | - Yihao Cui
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jiake Lin
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yuemin Zhou
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China
| | - Shuling Tang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ying Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Haibin Hao
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zihao Nie
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Xiaoyu Wang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, China.
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, Zhejiang, China.
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, China.
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang, China.
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26
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Yao Y, Ren J, Li H. Multi-Functionalization of Single crystals Mediated by Gel-Incorporation: A Bioinspired Strategy. Chempluschem 2023; 88:e202300228. [PMID: 37529945 DOI: 10.1002/cplu.202300228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/03/2023]
Abstract
Biominerals are inherently organic-inorganic crystal composites. Drawing inspiration from this biomineral structure, functionalized single crystals can be synthesized using the gel-grown method, resulting in the incorporation of gel-networks into the host crystals. By incorporating gel-networks, diverse guest materials, such as nanoparticles and dye molecules, can be uniformly and isotropically distributed within the crystals, thereby imparting non-intrinsic optical or magnetic properties to the host crystals. Additionally, gel-incorporation enhances the toughness and stability of the crystals as the incorporated gel-fibers and accompanying guest materials act as bridges to prevent crack propagation. Furthermore, gel-incorporation enables protein crystals to exhibit self-healing properties, which can be attributed to the dynamic bonding interaction between gel-networks and crystals. Notably, recent research has demonstrated that the incorporation of zwitterionic gel-networks enhances the charge effects on crystal morphology evolution as the charged groups become bound to the developing crystal surfaces, and their detachment is impeded by the interconnected gel-networks. Therefore, preparing single crystals with gel-incorporation is a remarkable strategy for synthesizing functionalized crystal materials.
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Affiliation(s)
- Yuqing Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Jie Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
| | - Hanying Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, China
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27
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Feng C, Tan P, Nie G, Zhu M. Biomimetic and bioinspired nano-platforms for cancer vaccine development. EXPLORATION (BEIJING, CHINA) 2023; 3:20210263. [PMID: 37933383 PMCID: PMC10624393 DOI: 10.1002/exp.20210263] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 11/02/2022] [Indexed: 11/08/2023]
Abstract
The advent of immunotherapy has revolutionized the treating modalities of cancer. Cancer vaccine, aiming to harness the host immune system to induce a tumor-specific killing effect, holds great promises for its broad patient coverage, high safety, and combination potentials. Despite promising, the clinical translation of cancer vaccines faces obstacles including the lack of potency, limited options of tumor antigens and adjuvants, and immunosuppressive tumor microenvironment. Biomimetic and bioinspired nanotechnology provides new impetus for the designing concepts of cancer vaccines. Through mimicking the stealth coating, pathogen recognition pattern, tissue tropism of pathogen, and other irreplaceable properties from nature, biomimetic and bioinspired cancer vaccines could gain functions such as longstanding, targeting, self-adjuvanting, and on-demand cargo release. The specific behavior and endogenous molecules of each type of living entity (cell or microorganism) offer unique features to cancer vaccines to address specific needs for immunotherapy. In this review, the strategies inspired by eukaryotic cells, bacteria, and viruses will be overviewed for advancing cancer vaccine development. Our insights into the future cancer vaccine development will be shared at the end for expediting the clinical translation.
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Affiliation(s)
- Chenchao Feng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijingChina
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijingChina
| | - Peng Tan
- Klarman Cell ObservatoryBroad Institute of MIT and HarvardCambridgeUSA
| | - Guangjun Nie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijingChina
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijingChina
- GBA Research Innovation Institute for NanotechnologyGuangzhouChina
| | - Motao Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijingChina
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28
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Gandarias L, Jefremovas EM, Gandia D, Marcano L, Martínez-Martínez V, Ramos-Cabrer P, Chevrier DM, Valencia S, Fernández Barquín L, Fdez-Gubieda ML, Alonso J, García-Prieto A, Muela A. Incorporation of Tb and Gd improves the diagnostic functionality of magnetotactic bacteria. Mater Today Bio 2023; 20:100680. [PMID: 37304575 PMCID: PMC10250929 DOI: 10.1016/j.mtbio.2023.100680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 06/13/2023] Open
Abstract
Magnetotactic bacteria are envisaged as potential theranostic agents. Their internal magnetic compass, chemical environment specificity and natural motility enable these microorganisms to behave as nanorobots, as they can be tracked and guided towards specific regions in the body and activated to generate a therapeutic response. Here we provide additional diagnostic functionalities to magnetotactic bacteria Magnetospirillum gryphiswaldense MSR-1 while retaining their intrinsic capabilities. These additional functionalities are achieved by incorporating Tb or Gd in the bacteria by culturing them in Tb/Gd supplemented media. The incorporation of Tb provides luminescence properties, enabling potential applications of bacteria as biomarkers. The incorporation of Gd turns bacteria into dual contrast agents for magnetic resonance imaging, since Gd adds T1 contrast to the existing T2 contrast of unmodified bacteria. Given their potential clinical applications, the diagnostic ability of the modified MSR-1 has been successfully tested in vitro in two cell models, confirming their suitability as fluorescent markers (Tb-MSR-1) and dual contrast agents for MRI (Gd-MSR-1).
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Affiliation(s)
- Lucía Gandarias
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco (UPV/EHU), Leioa, 48940, Spain
| | - Elizabeth M. Jefremovas
- CITIMAC, Universidad de Cantabria, Santander, 39005, Spain
- Institut für Physik, Johannes Gutenberg Universität, Mainz, 55128, Germany
| | - David Gandia
- BCMaterials, Bld. Martina Casiano 3rd Floor, Leioa, 48940, Spain
| | - Lourdes Marcano
- Dpto. Electricidad y Electrónica, Universidad del País Vasco (UPV/EHU), Leioa, 48940, Spain
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-str. 15, Berlin, 12489, Germany
- Department of Physics, Faculty of Science, University of Oviedo, Oviedo, 33007, Spain
| | | | - Pedro Ramos-Cabrer
- Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Daniel M. Chevrier
- Aix-Marseille Université, Centre national de la recherche scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), UMR7265, Bioscience and biotechnology institute of Aix-Marseille (BIAM), Saint-Paul-lez-Durance, 13108, France
| | - Sergio Valencia
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-str. 15, Berlin, 12489, Germany
| | | | - M. Luisa Fdez-Gubieda
- BCMaterials, Bld. Martina Casiano 3rd Floor, Leioa, 48940, Spain
- Dpto. Electricidad y Electrónica, Universidad del País Vasco (UPV/EHU), Leioa, 48940, Spain
| | - Javier Alonso
- CITIMAC, Universidad de Cantabria, Santander, 39005, Spain
| | - Ana García-Prieto
- Dpto. Física Aplicada, Universidad del País Vasco (UPV/EHU), Bilbao, 48013, Spain
| | - Alicia Muela
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco (UPV/EHU), Leioa, 48940, Spain
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29
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Masó-Martínez M, Fryer B, Aubert D, Peacock B, Lees R, Rance GA, Fay MW, Topham PD, Fernández-Castané A. Evaluation of cell disruption technologies on magnetosome chain length and aggregation behaviour from Magnetospirillum gryphiswaldense MSR-1. Front Bioeng Biotechnol 2023; 11:1172457. [PMID: 37214292 PMCID: PMC10192567 DOI: 10.3389/fbioe.2023.1172457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 04/21/2023] [Indexed: 05/24/2023] Open
Abstract
Magnetosomes are biologically-derived magnetic nanoparticles (MNPs) naturally produced by magnetotactic bacteria (MTB). Due to their distinctive characteristics, such as narrow size distribution and high biocompatibility, magnetosomes represent an attractive alternative to existing commercially-available chemically-synthesized MNPs. However, to extract magnetosomes from the bacteria, a cell disruption step is required. In this study, a systematic comparison between three disruption techniques (enzymatic treatment, probe sonication and high-pressure homogenization) was carried out to study their effect on the chain length, integrity and aggregation state of magnetosomes isolated from Magnetospirillum gryphiswaldense MSR-1 cells. Experimental results revealed that all three methodologies show high cell disruption yields (>89%). Transmission electron microscopy (TEM), dynamic light scattering (DLS) and, for the first time, nano-flow cytometry (nFCM) were employed to characterize magnetosome preparations after purification. TEM and DLS showed that high-pressure homogenization resulted in optimal conservation of chain integrity, whereas enzymatic treatment caused higher chain cleavage. The data obtained suggest that nFCM is best suited to characterize single membrane-wrapped magnetosomes, which can be particularly useful for applications that require the use of individual magnetosomes. Magnetosomes were also successfully labelled (>90%) with the fluorescent CellMask™ Deep Red membrane stain and analysed by nFCM, demonstrating the promising capacity of this technique as a rapid analytical tool for magnetosome quality assurance. The results of this work contribute to the future development of a robust magnetosome production platform.
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Affiliation(s)
- Marta Masó-Martínez
- Energy and Bioproducts Research Institute, Aston University, Birmingham, United Kingdom
| | - Benjamin Fryer
- Energy and Bioproducts Research Institute, Aston University, Birmingham, United Kingdom
| | | | | | | | - Graham A. Rance
- Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, Nottingham, United Kingdom
| | - Michael W. Fay
- Nanoscale and Microscale Research Centre (nmRC), University of Nottingham, Nottingham, United Kingdom
| | - Paul D. Topham
- Aston Institute of Materials Research, Aston University, Birmingham, United Kingdom
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30
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Saadli M, Braunmiller DL, Mourran A, Crassous JJ. Thermally and Magnetically Programmable Hydrogel Microactuators. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207035. [PMID: 36683216 DOI: 10.1002/smll.202207035] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/29/2022] [Indexed: 06/17/2023]
Abstract
The rapid development in micro-machinery enabled the investigation of smart materials that can embody fast response, programmable actuation, and flexibility to perform mechanical work. Soft magnetic actuators represent an interesting platform toward combining those properties. This study focuses on the synthesis of micro-actuators that respond to thermal and magnetic stimuli using micro-molding with a soft template as a fabrication technique. These microsystems consist of a hydrogel matrix loaded with anisotropic magnetic nanospindles. When a homogeneous magnetic field is applied, the nanospindles initially dispersed in monomer solution, align and assemble into dipolar chains. The ensuing UV-polymerization creates a network and conveniently arrests these nanostructures. Consequently, the magnetic dipole moment is coplanar with the microgel. Varying the shape, volume, and composition of the micro-actuators during synthesis provides a temperature-dependent control over the magnetic response and the polarizability. Beyond isotropic swelling, shaping the hydrogel as long thin ribbons with a passive layer on one side allows for differential swelling leading to bending and twisting deformations, for example, 2D- or 3D-spiral. These deformations involve a reversible amplification of the magnetic response and orientation of the hydrogels under magnetic field. Temperature control herewith determines the conformation and simultaneously the magnetic response of the micro-actuators.
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Affiliation(s)
- Meriem Saadli
- Institute of Physical Chemistry IPC, RWTH Aachen University, Landoltweg 2, 52074, Aachen, Germany
| | - Dominik L Braunmiller
- Institute of Physical Chemistry IPC, RWTH Aachen University, Landoltweg 2, 52074, Aachen, Germany
| | - Ahmed Mourran
- DWI - Leibniz-Institut für Interaktive Materialien e.V, RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
| | - Jérôme J Crassous
- Institute of Physical Chemistry IPC, RWTH Aachen University, Landoltweg 2, 52074, Aachen, Germany
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31
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An B, Wang Y, Huang Y, Wang X, Liu Y, Xun D, Church GM, Dai Z, Yi X, Tang TC, Zhong C. Engineered Living Materials For Sustainability. Chem Rev 2023; 123:2349-2419. [PMID: 36512650 DOI: 10.1021/acs.chemrev.2c00512] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent advances in synthetic biology and materials science have given rise to a new form of materials, namely engineered living materials (ELMs), which are composed of living matter or cell communities embedded in self-regenerating matrices of their own or artificial scaffolds. Like natural materials such as bone, wood, and skin, ELMs, which possess the functional capabilities of living organisms, can grow, self-organize, and self-repair when needed. They also spontaneously perform programmed biological functions upon sensing external cues. Currently, ELMs show promise for green energy production, bioremediation, disease treatment, and fabricating advanced smart materials. This review first introduces the dynamic features of natural living systems and their potential for developing novel materials. We then summarize the recent research progress on living materials and emerging design strategies from both synthetic biology and materials science perspectives. Finally, we discuss the positive impacts of living materials on promoting sustainability and key future research directions.
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Affiliation(s)
- Bolin An
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yanyi Wang
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yuanyuan Huang
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xinyu Wang
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yuzhu Liu
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Dongmin Xun
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - George M Church
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston 02115, Massachusetts United States.,Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston 02115, Massachusetts United States
| | - Zhuojun Dai
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiao Yi
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Tzu-Chieh Tang
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston 02115, Massachusetts United States.,Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston 02115, Massachusetts United States
| | - Chao Zhong
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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32
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Gotovtsev P. Microbial Cells as a Microrobots: From Drug Delivery to Advanced Biosensors. Biomimetics (Basel) 2023; 8:biomimetics8010109. [PMID: 36975339 PMCID: PMC10046805 DOI: 10.3390/biomimetics8010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/01/2023] [Accepted: 03/06/2023] [Indexed: 03/29/2023] Open
Abstract
The presented review focused on the microbial cell based system. This approach is based on the application of microorganisms as the main part of a robot that is responsible for the motility, cargo shipping, and in some cases, the production of useful chemicals. Living cells in such microrobots have both advantages and disadvantages. Regarding the advantages, it is necessary to mention the motility of cells, which can be natural chemotaxis or phototaxis, depending on the organism. There are approaches to make cells magnetotactic by adding nanoparticles to their surface. Today, the results of the development of such microrobots have been widely discussed. It has been shown that there is a possibility of combining different types of taxis to enhance the control level of the microrobots based on the microorganisms' cells and the efficiency of the solving task. Another advantage is the possibility of applying the whole potential of synthetic biology to make the behavior of the cells more controllable and complex. Biosynthesis of the cargo, advanced sensing, on/off switches, and other promising approaches are discussed within the context of the application for the microrobots. Thus, a synthetic biology application offers significant perspectives on microbial cell based microrobot development. Disadvantages that follow from the nature of microbial cells such as the number of external factors influence the cells, potential immune reaction, etc. They provide several limitations in the application, but do not decrease the bright perspectives of microrobots based on the cells of the microorganisms.
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Affiliation(s)
- Pavel Gotovtsev
- National Research Center "Kurchatov Institute", Biotechnology and Bioenergy Department, Akademika Kurchatova pl. 1, 123182 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, 9 Institutskiy per., 141701 Moscow, Russia
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33
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Song SJ, Mayorga-Martinez CC, Vyskočil J, Častorálová M, Ruml T, Pumera M. Precisely Navigated Biobot Swarms of Bacteria Magnetospirillum magneticum for Water Decontamination. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7023-7029. [PMID: 36700926 PMCID: PMC10016748 DOI: 10.1021/acsami.2c16592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
Hybrid biological robots (biobots) prepared from living cells are at the forefront of micro-/nanomotor research due to their biocompatibility and versatility toward multiple applications. However, their precise maneuverability is essential for practical applications. Magnetotactic bacteria are hybrid biobots that produce magnetosome magnetite crystals, which are more stable than synthesized magnetite and can orient along the direction of earth's magnetic field. Herein, we used Magnetospirillum magneticum strain AMB-1 (M. magneticum AMB-1) for the effective removal of chlorpyrifos (an organophosphate pesticide) in various aqueous solutions by naturally binding with organic matter. Precision control of M. magneticum AMB-1 was achieved by applying a magnetic field. Under a programed clockwise magnetic field, M. magneticum AMB-1 exhibit swarm behavior and move in a circular direction. Consequently, we foresee that M. magneticum AMB-1 can be applied in various environments to remove and retrieve pollutants by directional control magnetic actuation.
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Affiliation(s)
- Su-Jin Song
- Center
for Advanced Functional Nanorobots, Department of Inorganic Chemistry,
Faculty of Chemical Technology, University
of Chemistry and Technology Prague, Technická 5, Prague 166 28, Czech Republic
| | - Carmen C. Mayorga-Martinez
- Center
for Advanced Functional Nanorobots, Department of Inorganic Chemistry,
Faculty of Chemical Technology, University
of Chemistry and Technology Prague, Technická 5, Prague 166 28, Czech Republic
| | - Jan Vyskočil
- Center
for Advanced Functional Nanorobots, Department of Inorganic Chemistry,
Faculty of Chemical Technology, University
of Chemistry and Technology Prague, Technická 5, Prague 166 28, Czech Republic
| | - Markéta Častorálová
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, Technická 5, Prague 166 28, Czech Republic
| | - Tomáš Ruml
- Department
of Biochemistry and Microbiology, University
of Chemistry and Technology Prague, Technická 5, Prague 166 28, Czech Republic
| | - Martin Pumera
- Center
for Advanced Functional Nanorobots, Department of Inorganic Chemistry,
Faculty of Chemical Technology, University
of Chemistry and Technology Prague, Technická 5, Prague 166 28, Czech Republic
- Department
of Chemical and Biomolecular Engineering, Yonsei University, 50
Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
- Faculty
of Electrical Engineering and Computer Science, VSB—Technical University of Ostrava, 17. listopadu 2172/15, Ostrava 70800, Czech Republic
- Department
of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung 40402, Taiwan
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34
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Chen Y, Li ZH, Zeng X, Zhang XZ. Bacteria-based bioactive materials for cancer imaging and therapy. Adv Drug Deliv Rev 2023; 193:114696. [PMID: 36632868 DOI: 10.1016/j.addr.2023.114696] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 12/02/2022] [Accepted: 01/07/2023] [Indexed: 01/11/2023]
Abstract
Owing to the unique biological functions, bacteria as biological materials have been widely used in biomedical field. With advances in biotechnology and nanotechnology, various bacteria-based bioactive materials were developed for cancer imaging and therapy. In this review, different types of bacteria-based bioactive materials and their construction strategies were summarized. The advantages and property-function relationship of bacteria-based bioactive materials were described. Representative researches of bacteria-based bioactive materials in cancer imaging and therapy were illustrated, revealing general ideas for their construction. Also, limitation and challenges of bacteria-based bioactive materials in cancer research were discussed.
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Affiliation(s)
- Ying Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Zi-Hao Li
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Xuan Zeng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, PR China; Wuhan Research Centre for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan 430071, PR China.
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35
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Large-Scale Cultivation of Magnetotactic Bacteria and the Optimism for Sustainable and Cheap Approaches in Nanotechnology. Mar Drugs 2023; 21:md21020060. [PMID: 36827100 PMCID: PMC9961000 DOI: 10.3390/md21020060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/21/2023] Open
Abstract
Magnetotactic bacteria (MTB), a diverse group of marine and freshwater microorganisms, have attracted the scientific community's attention since their discovery. These bacteria biomineralize ferrimagnetic nanocrystals, the magnetosomes, or biological magnetic nanoparticles (BMNs), in a single or multiple chain(s) within the cell. As a result, cells experience an optimized magnetic dipolar moment responsible for a passive alignment along the lines of the geomagnetic field. Advances in MTB cultivation and BMN isolation have contributed to the expansion of the biotechnological potential of MTB in recent decades. Several studies with mass-cultured MTB expanded the possibilities of using purified nanocrystals and whole cells in nano- and biotechnology. Freshwater MTB were primarily investigated in scaling up processes for the production of BMNs. However, marine MTB have the potential to overcome freshwater species applications due to the putative high efficiency of their BMNs in capturing molecules. Regarding the use of MTB or BMNs in different approaches, the application of BMNs in biomedicine remains the focus of most studies, but their application is not restricted to this field. In recent years, environment monitoring and recovery, engineering applications, wastewater treatment, and industrial processes have benefited from MTB-based biotechnologies. This review explores the advances in MTB large-scale cultivation and the consequent development of innovative tools or processes.
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36
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Wang B, Qin Y, Liu J, Zhang Z, Li W, Pu G, Yuanhe Z, Gui X, Chu M. Magnetotactic Bacteria-Based Drug-Loaded Micromotors for Highly Efficient Magnetic and Biological Double-Targeted Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2747-2759. [PMID: 36607241 DOI: 10.1021/acsami.2c19960] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Bacteria-mediated cancer therapy has attracted much attention in recent years. However, using magnetotactic bacteria as both a drug carrier and a drug for cancer therapy has never been reported. Herein, we incorporated a photosensitizer chlorin e6 (Ce6) into the M. magneticum strain AMB-1 through a chemical bond or physical blending. A chemical reaction was finally selected for fabricating AMB-1/Ce6 micromotors, as such micromotors exhibited high drug payload and normal bacterial activities. An interesting finding is that AMB-1 is not only an excellent drug carrier but also a unique drug that could inhibit mouse tumor growth. We also, for the first time, demonstrated that AMB-1 is a photosensitizer. Under laser irradiation, micromotors killed cancer cells with high efficiency due to the high-level reactive oxygen species generated by the micromotors. Micromotors could target the hypoxic and normoxic regions in vitro via both the active swimming of AMB-1 and external magnetic field guidance. Micromotors showed high tumor-homing ability owing to the above double targeting mechanisms. After injection with the micromotors followed by magnetic field guidance and laser irradiation, the growth of mouse tumors was significantly inhibited owing to the AMB-1-based biotherapy and phototoxicity of AMB-1 and Ce6. This micromotor-mediated tumor-targeted therapy strategy may be a great platform for treating many types of solid tumors.
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Affiliation(s)
- Bo Wang
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
| | - Youwan Qin
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
| | - Jie Liu
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
- Institute of Biophysics, Chinese Academy of Science, Beijing 100101, P. R. China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zefei Zhang
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
| | - Wenhao Li
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
| | - Guangjin Pu
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
| | - Zhuoran Yuanhe
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
| | - Xin Gui
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
| | - Maoquan Chu
- Research Center for Translational Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P. R. China
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37
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Gandia D, Marcano L, Gandarias L, Villanueva D, Orue I, Abrudan RM, Valencia S, Rodrigo I, Ángel García J, Muela A, Fdez-Gubieda ML, Alonso J. Tuning the Magnetic Response of Magnetospirillum magneticum by Changing the Culture Medium: A Straightforward Approach to Improve Their Hyperthermia Efficiency. ACS APPLIED MATERIALS & INTERFACES 2023; 15:566-577. [PMID: 36563339 PMCID: PMC9982817 DOI: 10.1021/acsami.2c18435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Magnetotactic bacteria Magnetospirillum magneticum AMB-1 have been cultured using three different media: magnetic spirillum growth medium with Wolfe's mineral solution (MSGM + W), magnetic spirillum growth medium without Wolfe's mineral solution (MSGM - W), and flask standard medium (FSM). The influence of the culture medium on the structural, morphological, and magnetic characteristics of the magnetosome chains biosynthesized by these bacteria has been investigated by using transmission electron microscopy, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism. All bacteria exhibit similar average size for magnetosomes, 40-45 nm, but FSM bacteria present slightly longer subchains. In MSGM + W bacteria, Co2+ ions present in the medium substitute Fe2+ ions in octahedral positions with a total Co doping around 4-5%. In addition, the magnetic response of these bacteria has been thoroughly studied as functions of both the temperature and the applied magnetic field. While MSGM - W and FSM bacteria exhibit similar magnetic behavior, in the case of MSGM + W, the incorporation of the Co ions affects the magnetic response, in particular suppressing the Verwey (∼105 K) and low temperature (∼40 K) transitions and increasing the coercivity and remanence. Moreover, simulations based on a Stoner-Wolhfarth model have allowed us to reproduce the experimentally obtained magnetization versus magnetic field loops, revealing clear changes in different anisotropy contributions for these bacteria depending on the employed culture medium. Finally, we have related how these magnetic changes affect their heating efficiency by using AC magnetometric measurements. The obtained AC hysteresis loops, measured with an AC magnetic field amplitude of up to 90 mT and a frequency, f, of 149 kHz, reveal the influence of the culture medium on the heating properties of these bacteria: below 35 mT, MSGM - W bacteria are the best heating mediators, but above 60 mT, FSM and MSGM + W bacteria give the best heating results, reaching a maximum heating efficiency or specific absorption rate (SAR) of SAR/f ≈ 12 W g-1 kHz-1.
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Affiliation(s)
- David Gandia
- Basque
Center for Materials Applications and Nanostructures (BCMaterials)
UPV/EHU Science Park Leioa, Leioa48940, Spain
| | - Lourdes Marcano
- Departmento
de Física, Facultad de Ciencias,
Universidad de Oviedo, Oviedo33007, Spain
| | - Lucía Gandarias
- Departamento
de Inmunología, Microbiología y Parasitología, Universidad del País Vasco (UPV/EHU), Leioa48940, Spain
| | - Danny Villanueva
- Departamento
de Electricidad y Electrónica, Universidad
del País Vasco (UPV/EHU), Leioa48940, Spain
| | - Iñaki Orue
- SGIker
Medidas Magnéticas, Universidad del
País Vasco (UPV/EHU), Leioa48940, Spain
| | - Radu Marius Abrudan
- Helmholtz-Zentrum
Berlin für Materialien und Energie, Albert-Einstein-Street 15, Berlin12489, Germany
| | - Sergio Valencia
- Helmholtz-Zentrum
Berlin für Materialien und Energie, Albert-Einstein-Street 15, Berlin12489, Germany
| | - Irati Rodrigo
- Departamento
Física Aplicada, Universidad del
País Vasco (UPV/EHU), Eibar20600, Spain
| | - José Ángel García
- Departamento
Física Aplicada, Universidad del
País Vasco (UPV/EHU), Leioa48940, Spain
| | - Alicia Muela
- Departamento
de Inmunología, Microbiología y Parasitología, Universidad del País Vasco (UPV/EHU), Leioa48940, Spain
| | - Ma Luisa Fdez-Gubieda
- Basque
Center for Materials Applications and Nanostructures (BCMaterials)
UPV/EHU Science Park Leioa, Leioa48940, Spain
- Departamento
de Electricidad y Electrónica, Universidad
del País Vasco (UPV/EHU), Leioa48940, Spain
| | - Javier Alonso
- Departamento
CITIMAC, Universidad de Cantabria, Santander39005, Spain
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Pophof B, Henschenmacher B, Kattnig DR, Kuhne J, Vian A, Ziegelberger G. Biological Effects of Electric, Magnetic, and Electromagnetic Fields from 0 to 100 MHz on Fauna and Flora: Workshop Report. HEALTH PHYSICS 2023; 124:39-52. [PMID: 36480584 PMCID: PMC9722389 DOI: 10.1097/hp.0000000000001624] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This report summarizes effects of anthropogenic electric, magnetic, and electromagnetic fields in the frequency range from 0 to 100 MHz on flora and fauna, as presented at an international workshop held on 5-7 November in 2019 in Munich, Germany. Such fields may originate from overhead powerlines, earth or sea cables, and from wireless charging systems. Animals and plants react differentially to anthropogenic fields; the mechanisms underlying these responses are still researched actively. Radical pairs and magnetite are discussed mechanisms of magnetoreception in insects, birds, and mammals. Moreover, several insects as well as marine species possess specialized electroreceptors, and behavioral reactions to anthropogenic fields have been reported. Plants react to experimental modifications of their magnetic environment by growth changes. Strong adverse effects of anthropogenic fields have not been described, but knowledge gaps were identified; further studies, aiming at the identification of the interaction mechanisms and the ecological consequences, are recommended.
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Affiliation(s)
- Blanka Pophof
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
| | - Bernd Henschenmacher
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
| | - Daniel R. Kattnig
- Department of Physics and Living Systems Institute, University of Exeter, Stocker Road, Exeter, EX4 4QD, United Kingdom
| | - Jens Kuhne
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
| | - Alain Vian
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
| | - Gunde Ziegelberger
- Competence Centre for Electromagnetic Fields, Department of Effects and Risks of Ionizing and Non-Ionizing Radiation, Federal Office for Radiation Protection, 85764 Oberschleißheim, Germany
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El-Naggar ME, Abdelgawad AM, Abdel-Sattar R, Gibriel AA, Hemdan BA. Potential antimicrobial and antibiofilm efficacy of peppermint oil nanoemulsion loaded polycaprolactone nanofibrous scaffolds. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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40
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Mandal FB. Interaction between marine protists and bacteria results in magnetotaxis and iron recycling. Isr J Ecol Evol 2022. [DOI: 10.1163/22244662-bja10042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Abstract
Marine protists are eukaryotic trophic linkers that play a crucial role in iron recycling. Some marine protists have the ability of magnetotaxis, which they gain by consuming their ectosymbiotic bacteria. They graze and internalize the magnetotactic bacteria along with their magnetosome chains. Through egestion, marine protists avoid iron toxicity. Colloidal iron digestion by protists produces bioavailable iron for other marine organisms, passing to phytoplankton and mesozooplankton through the mesotrophic system. Indeed, ectosymbiotic bacteria and their protistan host form a microbial holobiont acting as an ecological unit. Some of the genetic mechanisms influencing the biosynthesis of magnetite in both prokaryotes and eukaryotes appear to be common. The recorded history of the magnetoreception ability of some marine protists goes back to the study by F.F. Torres de Araujo in 1986. After research over 35 years or more, it is safe to record that magnetotaxis in marine protists is yet to be fully understood, and might be similar to that of free-living magnetotactic bacteria. However, the attainment of magnetotaxis by protistan grazers through bacterivory and its role in iron recycling in the marine ecosystem is very interesting. The present article aims to provide an account of such interesting facts.
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Affiliation(s)
- Fatik Baran Mandal
- Department of Zoology, Bankura Christian College, College Road, Bankura, West Bengal, 722101, India
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41
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Chepizhko O, Franosch T. Resonant Diffusion of a Gravitactic Circle Swimmer. PHYSICAL REVIEW LETTERS 2022; 129:228003. [PMID: 36493425 DOI: 10.1103/physrevlett.129.228003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 08/16/2022] [Accepted: 10/07/2022] [Indexed: 06/17/2023]
Abstract
We investigate the dynamics of a single chiral active particle subject to an external torque due to the presence of a gravitational field. Our computer simulations reveal an arbitrarily strong increase of the long-time diffusivity of the gravitactic agent when the external torque approaches the intrinsic angular drift. We provide analytic expressions for the mean-square displacement in terms of eigenfunctions and eigenvalues of the noisy-driven-pendulum problem. The pronounced maximum in the diffusivity is then rationalized by the vanishing of the lowest eigenvalues of the Fokker-Planck equation for the angular motion as the rotational diffusion decreases and the underlying classical bifurcation is approached. A simple harmonic-oscillator picture for the barrier-dominated motion provides a quantitative description for the onset of the resonance while its range of validity is determined by the crossover to a critical-fluctuation-dominated regime.
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Affiliation(s)
- Oleksandr Chepizhko
- Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 21A, A-6020 Innsbruck, Austria
| | - Thomas Franosch
- Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 21A, A-6020 Innsbruck, Austria
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42
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Tan Y, Hu X, Hou Y, Chu Z. Emerging Diamond Quantum Sensing in Bio-Membranes. MEMBRANES 2022; 12:957. [PMID: 36295716 PMCID: PMC9609316 DOI: 10.3390/membranes12100957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Bio-membranes exhibit complex but unique mechanical properties as communicative regulators in various physiological and pathological processes. Exposed to a dynamic micro-environment, bio-membranes can be seen as an intricate and delicate system. The systematical modeling and detection of their local physical properties are often difficult to achieve, both quantitatively and precisely. The recent emerging diamonds hosting quantum defects (i.e., nitrogen-vacancy (NV) center) demonstrate intriguing optical and spin properties, together with their outstanding photostability and biocompatibility, rendering them ideal candidates for biological applications. Notably, the extraordinary spin-based sensing enable the measurements of localized nanoscale physical quantities such as magnetic fields, electrical fields, temperature, and strain. These nanoscale signals can be optically read out precisely by simple optical microscopy systems. Given these exclusive properties, NV-center-based quantum sensors can be widely applied in exploring bio-membrane-related features and the communicative chemical reaction processes. This review mainly focuses on NV-based quantum sensing in bio-membrane fields. The attempts of applying NV-based quantum sensors in bio-membranes to investigate diverse physical and chemical events such as membrane elasticity, phase change, nanoscale bio-physical signals, and free radical formation are fully overviewed. We also discuss the challenges and future directions of this novel technology to be utilized in bio-membranes.
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Affiliation(s)
- Yayin Tan
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Xinhao Hu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Yong Hou
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Zhiqin Chu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
- Joint Appointment with School of Biomedical Sciences, The University of Hong Kong, Hong Kong 999077, China
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43
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Shimoshige H, Kobayashi H, Shimamura S, Miyazaki M, Maekawa T. Fundidesulfovibrio magnetotacticus sp. nov., a sulphate-reducing magnetotactic bacterium, isolated from sediments and freshwater of a pond. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A sulphate-reducing magnetotactic bacterium, designated strain FSS-1T, was isolated from sediments and freshwater of Suwa Pond located in Hidaka, Saitama, Japan. Strain FSS-1T was a motile, Gram-negative and curved rod-shaped bacterium that synthesizes bullet-shaped magnetite (Fe3O4) nanoparticles in each cell. Strain FSS-1T was able to grow in the range of pH 6.5–8.0 (optimum, pH 7.0), 22–34 °C (optimum, 28 °C) and with 0–8.0 g l−1 NaCl (optimum, 0–2.0 g l−1 NaCl). Strain FSS-1T grew well in the presence of 50 µM ferric quinate as an iron source. The major fatty acids were anteiso-C15 : 0, iso-C15 : 0 and anteiso-C17 : 0. The major menaquinone was MK-7 (H2). Strain FSS-1T contained desulfoviridin, cytochrome c
3 and catalase, but did not contain oxidase. Strain FSS-1T used fumarate, lactate, pyruvate, malate, formate/acetate, succinate, tartrate, ethanol, 1-propanol, peptone, soytone and yeast extract as electron donors, while the strain used sulphate, thiosulphate and fumarate as electron acceptors. Fumarate was fermented in the absence of electron acceptors. Analysis of the 16S rRNA gene sequence showed that strain FSS-1T is a member of the genus
Fundidesulfovibrio
. The gene sequence showed 96.7, 95.0, 92.0, 91.2 and 91.4% similarities to the most closely related members of the genera
Fundidesulfovibrio putealis
B7-43T,
Fundidesulfovibrio butyratiphilus
BSYT,
Desulfolutivibrio sulfoxidireducens
DSM 107105T,
Desulfolutivibrio sulfodismutans
ThAc01T and
Solidesulfovibrio magneticus
RS-1T, respectively. The DNA G+C content of strain FSS-1T was 67.5 mol%. The average nucleotide identity value between strain FSS-1T and
F. putealis
B7-43T was 80.7 %. Therefore, strain FSS-1T represents a novel species within the genus
Fundidesulfovibrio
, for which the name Fundidesulfovibrio magnetotacticus sp. nov. is proposed (=JCM 32405T=DSM 110007T).
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Affiliation(s)
- Hirokazu Shimoshige
- Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
- Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Kanagawa 237-0061, Japan
| | - Hideki Kobayashi
- Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
| | - Shigeru Shimamura
- Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Kanagawa 237-0061, Japan
| | - Masayuki Miyazaki
- Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Kanagawa 237-0061, Japan
| | - Toru Maekawa
- Graduate School of Interdisciplinary New Science, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350- 15 8585, Japan
- Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
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44
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Robinson CM, Short NE, Riglar DT. Achieving spatially precise diagnosis and therapy in the mammalian gut using synthetic microbial gene circuits. Front Bioeng Biotechnol 2022; 10:959441. [PMID: 36118573 PMCID: PMC9478464 DOI: 10.3389/fbioe.2022.959441] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
The mammalian gut and its microbiome form a temporally dynamic and spatially heterogeneous environment. The inaccessibility of the gut and the spatially restricted nature of many gut diseases translate into difficulties in diagnosis and therapy for which novel tools are needed. Engineered bacterial whole-cell biosensors and therapeutics have shown early promise at addressing these challenges. Natural and engineered sensing systems can be repurposed in synthetic genetic circuits to detect spatially specific biomarkers during health and disease. Heat, light, and magnetic signals can also activate gene circuit function with externally directed spatial precision. The resulting engineered bacteria can report on conditions in situ within the complex gut environment or produce biotherapeutics that specifically target host or microbiome activity. Here, we review the current approaches to engineering spatial precision for in vivo bacterial diagnostics and therapeutics using synthetic circuits, and the challenges and opportunities this technology presents.
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45
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Macrophage-compatible magnetic achiral nanorobots fabricated by electron beam lithography. Sci Rep 2022; 12:13080. [PMID: 35906371 PMCID: PMC9338296 DOI: 10.1038/s41598-022-17053-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/20/2022] [Indexed: 12/05/2022] Open
Abstract
With the development and progress of nanotechnology, the prospect of using nanorobots to achieve targeted drug delivery is becoming possible. Although nanorobots can potentially improve nano-drug delivery systems, there remains a significant challenge to fabricating magnetically controllable nanorobots with a size suitable for drug delivery in complex in vivo environments. Most of the current research focused on the preparation and functionalization of microscale and milliscale robots due to the relative difficulties in fabricating nanoscale robots. To address this problem and move towards in vivo applications, this study uses electron beam lithography to fabricate achiral planar L-shaped nanorobots that are biocompatible with immune cells. Their minimal planar geometry enabled nanolithography to fabricate nanorobots with a minimum feature size down to 400 nm. Using an integrated imaging and control system, the locomotive behavior of the L-shaped nanorobots in a fluidic environment was studied by examining their velocity profiles and trajectories. Furthermore, the nanorobots exhibit excellent cell compatibility with various types of cells, including macrophage cells. Finally, the long-term cell culture medium immersion test demonstrated that the L-shaped nanorobots have robust stability. This work will demonstrate the potential to use these nanorobots to operate in vivo without triggering immune cell responses.
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46
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Schaible GA, Kohtz AJ, Cliff J, Hatzenpichler R. Correlative SIP-FISH-Raman-SEM-NanoSIMS links identity, morphology, biochemistry, and physiology of environmental microbes. ISME COMMUNICATIONS 2022; 2:52. [PMID: 37938730 PMCID: PMC9723565 DOI: 10.1038/s43705-022-00134-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/23/2022] [Accepted: 06/09/2022] [Indexed: 05/08/2023]
Abstract
Microscopic and spectroscopic techniques are commonly applied to study microbial cells but are typically used on separate samples, resulting in population-level datasets that are integrated across different cells with little spatial resolution. To address this shortcoming, we developed a workflow that correlates several microscopic and spectroscopic techniques to generate an in-depth analysis of individual cells. By combining stable isotope probing (SIP), fluorescence in situ hybridization (FISH), scanning electron microscopy (SEM), confocal Raman microspectroscopy (Raman), and nano-scale secondary ion mass spectrometry (NanoSIMS), we illustrate how individual cells can be thoroughly interrogated to obtain information about their taxonomic identity, structure, physiology, and metabolic activity. Analysis of an artificial microbial community demonstrated that our correlative approach was able to resolve the activity of single cells using heavy water SIP in conjunction with Raman and/or NanoSIMS and establish their taxonomy and morphology using FISH and SEM. This workflow was then applied to a sample of yet uncultured multicellular magnetotactic bacteria (MMB). In addition to establishing their identity and activity, backscatter electron microscopy (BSE), NanoSIMS, and energy-dispersive X-ray spectroscopy (EDS) were employed to characterize the magnetosomes within the cells. By integrating these techniques, we demonstrate a cohesive approach to thoroughly study environmental microbes on a single-cell level.
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Affiliation(s)
- George A Schaible
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT, 59717, USA
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, USA
- Thermal Biology Institute, Montana State University, Bozeman, MT, 59717, USA
| | - Anthony J Kohtz
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT, 59717, USA
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, USA
- Thermal Biology Institute, Montana State University, Bozeman, MT, 59717, USA
| | - John Cliff
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Roland Hatzenpichler
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT, 59717, USA.
- Center for Biofilm Engineering, Montana State University, Bozeman, MT, 59717, USA.
- Thermal Biology Institute, Montana State University, Bozeman, MT, 59717, USA.
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT, 59717, USA.
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47
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Jefremovas EM, Gandarias L, Marcano L, Gacía-Prieto A, Orue I, Muela A, Fdez-Gubieda ML, Barquín LF, Alonso J. Modifying the magnetic response of magnetotactic bacteria: incorporation of Gd and Tb ions into the magnetosome structure. NANOSCALE ADVANCES 2022; 4:2649-2659. [PMID: 36132283 PMCID: PMC9417820 DOI: 10.1039/d2na00094f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/17/2022] [Accepted: 04/01/2022] [Indexed: 06/13/2023]
Abstract
Magnetotactic bacteria Magnetospirillum gryphiswaldense MSR-1 biosynthesise chains of cube-octahedral magnetosomes, which are 40 nm magnetite high quality (Fe3O4) nanoparticles. The magnetic properties of these crystalline magnetite nanoparticles, which can be modified by the addition of other elements into the magnetosome structure (doping), are of prime interest in a plethora of applications, those related to cancer therapy being some of the most promising ones. Although previous studies have focused on transition metal elements, rare earth (RE) elements are very interesting as doping agents, both from a fundamental point of view (e.g. significant differences in ionic sizes) and for the potential applications, especially in biomedicine (e.g. magnetic resonance imaging and luminescence). In this work, we have investigated the impact of Gd and Tb on the magnetic properties of magnetosomes by using different complementary techniques. X-ray diffraction, transmission electron microscopy, and X-ray absorption near edge spectroscopy analyses have revealed that a small amount of RE ions, ∼3-4%, incorporate into the Fe3O4 structure as Gd3+ and Tb3+ ions. The experimental magnetic characterisation has shown a clear Verwey transition for the RE-doped bacteria, located at T ∼ 100 K, which is slightly below the one corresponding to the undoped ones (106 K). However, we report a decrease in the coercivity and remanence of the RE-doped bacteria. Simulations based on the Stoner-Wohlfarth model have allowed us to associate these changes in the magnetic response with a reduction of the magnetocrystalline (K C) and, especially, the uniaxial (K uni) anisotropies below the Verwey transition. In this way, K uni reaches a value of 23 and 26 kJ m-3 for the Gd- and Tb-doped bacteria, respectively, whilst a value of 37 kJ m-3 is obtained for the undoped bacteria.
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Affiliation(s)
- E M Jefremovas
- Dpto. CITIMAC, Universidad de Cantabria 39005 Santander Spain
| | - L Gandarias
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco (UPV/EHU) 48940 Leioa Spain
| | - L Marcano
- Helmholtz-Zentrum Berlin für Materialien und Energie Albert-Einstein-Str. 15 12489 Berlin Germany
- Dpto. Electricidad y Electrónica, Universidad del País Vasco (UPV/EHU) 48940 Leioa Spain
| | - A Gacía-Prieto
- Dpto. Física Aplicada, Universidad del País Vasco (UPV/EHU) 48013 Bilbao Spain
| | - I Orue
- SGIker Medidas Magnéticas, Universidad del País Vasco (UPV/EHU) 48940 Leioa Spain
| | - A Muela
- Dpto. Inmunología, Microbiología y Parasitología, Universidad del País Vasco (UPV/EHU) 48940 Leioa Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Spain
| | - M L Fdez-Gubieda
- Helmholtz-Zentrum Berlin für Materialien und Energie Albert-Einstein-Str. 15 12489 Berlin Germany
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Spain
| | | | - J Alonso
- Dpto. CITIMAC, Universidad de Cantabria 39005 Santander Spain
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48
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Marcano L, Orue I, Gandia D, Gandarias L, Weigand M, Abrudan RM, García-Prieto A, García-Arribas A, Muela A, Fdez-Gubieda ML, Valencia S. Magnetic Anisotropy of Individual Nanomagnets Embedded in Biological Systems Determined by Axi-asymmetric X-ray Transmission Microscopy. ACS NANO 2022; 16:7398-7408. [PMID: 35472296 PMCID: PMC9878725 DOI: 10.1021/acsnano.1c09559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Over the past few years, the use of nanomagnets in biomedical applications has increased. Among others, magnetic nanostructures can be used as diagnostic and therapeutic agents in cardiovascular diseases, to locally destroy cancer cells, to deliver drugs at specific positions, and to guide (and track) stem cells to damaged body locations in regenerative medicine and tissue engineering. All these applications rely on the magnetic properties of the nanomagnets which are mostly determined by their magnetic anisotropy. Despite its importance, the magnetic anisotropy of the individual magnetic nanostructures is unknown. Currently available magnetic sensitive microscopic methods are either limited in spatial resolution or in magnetic field strength or, more relevant, do not allow one to measure magnetic signals of nanomagnets embedded in biological systems. Hence, the use of nanomagnets in biomedical applications must rely on mean values obtained after averaging samples containing thousands of dissimilar entities. Here we present a hybrid experimental/theoretical method capable of working out the magnetic anisotropy constant and the magnetic easy axis of individual magnetic nanostructures embedded in biological systems. The method combines scanning transmission X-ray microscopy using an axi-asymmetric magnetic field with theoretical simulations based on the Stoner-Wohlfarth model. The validity of the method is demonstrated by determining the magnetic anisotropy constant and magnetic easy axis direction of 15 intracellular magnetite nanoparticles (50 nm in size) biosynthesized inside a magnetotactic bacterium.
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Affiliation(s)
- Lourdes Marcano
- Helmholtz-Zentrum
Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Dpto.
Electricidad y Electrónica, Universidad
del País Vasco - UPV/EHU, 48940 Leioa, Spain
| | - Iñaki Orue
- SGIker, Universidad del País Vasco - UPV/EHU, 48940 Leioa, Spain
| | - David Gandia
- BCMaterials, Bld. Martina Casiano third floor, 48940 Leioa, Spain
| | - Lucía Gandarias
- Dpto.
Inmunología, Microbiología y Parasitología, Universidad del País Vasco - UPV/EHU, 48940 Leioa, Spain
| | - Markus Weigand
- Helmholtz-Zentrum
Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Radu Marius Abrudan
- Helmholtz-Zentrum
Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Ana García-Prieto
- Dpto. Física
Aplicada, Universidad del País Vasco - UPV/EHU, 48013 Bilbao, Spain
| | - Alfredo García-Arribas
- Dpto.
Electricidad y Electrónica, Universidad
del País Vasco - UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Bld. Martina Casiano third floor, 48940 Leioa, Spain
| | - Alicia Muela
- Dpto.
Inmunología, Microbiología y Parasitología, Universidad del País Vasco - UPV/EHU, 48940 Leioa, Spain
| | - M. Luisa Fdez-Gubieda
- Dpto.
Electricidad y Electrónica, Universidad
del País Vasco - UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Bld. Martina Casiano third floor, 48940 Leioa, Spain
| | - Sergio Valencia
- Helmholtz-Zentrum
Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany
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49
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Mittmann E, Mickoleit F, Maier DS, Stäbler SY, Klein MA, Niemeyer CM, Rabe KS, Schüler D. A Magnetosome-Based Platform for Flow Biocatalysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22138-22150. [PMID: 35508355 PMCID: PMC9121345 DOI: 10.1021/acsami.2c03337] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Biocatalysis in flow reactor systems is of increasing importance for the transformation of the chemical industry. However, the necessary immobilization of biocatalysts remains a challenge. We here demonstrate that biogenic magnetic nanoparticles, so-called magnetosomes, represent an attractive alternative for the development of nanoscale particle formulations to enable high and stable conversion rates in biocatalytic flow processes. In addition to their intriguing material characteristics, such as high crystallinity, stable magnetic moments, and narrow particle size distribution, magnetosomes offer the unbeatable advantage over chemically synthesized nanoparticles that foreign protein "cargo" can be immobilized on the enveloping membrane via genetic engineering and thus, stably presented on the particle surface. To exploit these advantages, we develop a modular connector system in which abundant magnetosome membrane anchors are genetically fused with SpyCatcher coupling groups, allowing efficient covalent coupling with complementary SpyTag-functionalized proteins. The versatility of this approach is demonstrated by immobilizing a dimeric phenolic acid decarboxylase to SpyCatcher magnetosomes. The functionalized magnetosomes outperform similarly functionalized commercial particles by exhibiting stable substrate conversion during a 60 h period, with an average space-time yield of 49.2 mmol L-1 h-1. Overall, our results demonstrate that SpyCatcher magnetosomes significantly expand the genetic toolbox for particle surface functionalization and increase their application potential as nano-biocatalysts.
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Affiliation(s)
- Esther Mittmann
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Frank Mickoleit
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Denis S. Maier
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Sabrina Y. Stäbler
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Marius A. Klein
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Christof M. Niemeyer
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Kersten S. Rabe
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Dirk Schüler
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
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50
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Jiang G, Fan D, Tian J, Xiang Z, Fang Q. Self-Confirming Magnetosomes for Tumor-Targeted T 1 /T 2 Dual-Mode MRI and MRI-Guided Photothermal Therapy. Adv Healthc Mater 2022; 11:e2200841. [PMID: 35579102 DOI: 10.1002/adhm.202200841] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Indexed: 12/29/2022]
Abstract
Nanomaterials as T1 /T2 dual-mode magnetic resonance imaging (MRI) contrast agents have great potential in improving the accuracy of tumor diagnosis. Applications of such materials, however, are limited by the complicated chemical synthesis process and potential biosafety issues. In this study, the biosynthesis of manganese (Mn)-doped magnetosomes (MagMn) that not only can be used in T1 /T2 dual-mode MR imaging with self-confirmation for tumor detection, but also improve the photothermal conversion efficiency for MRI-guided photothermal therapy (PTT) is reported. The MagMn nanoparticles (NPs) are naturally produced through the biomineralization of magnetotactic bacteria by doping Mn into the ferromagnetic iron oxide crystals. In vitro and in vivo studies demonstrated that targeting peptides functionalized MagMn enhanced both T1 and T2 MRI signals in tumor tissue and significantly inhibited tumor growth by the further MRI-guided PTT. It is envisioned that the biosynthesized multifunctional MagMn nanoplatform may serve as a potential theranostic agent for cancer diagnosis and treatment.
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Affiliation(s)
- Gexuan Jiang
- Laboratory of Theoretical and Computational Nanoscience CAS Key Laboratory of Nanophotonic Materials and Devices CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Di Fan
- Laboratory of Theoretical and Computational Nanoscience CAS Key Laboratory of Nanophotonic Materials and Devices CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Jiesheng Tian
- State Key Laboratories for Agro‐biotechnology and College of Biological Sciences China Agricultural University Beijing 100193 P. R. China
| | - Zhichu Xiang
- Laboratory of Theoretical and Computational Nanoscience CAS Key Laboratory of Nanophotonic Materials and Devices CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing 100190 P. R. China
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education) College of Laboratory Medicine Chongqing Medical University Chongqing China
| | - Qiaojun Fang
- Laboratory of Theoretical and Computational Nanoscience CAS Key Laboratory of Nanophotonic Materials and Devices CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques National Center for Nanoscience and Technology Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Sino‐Danish Center for Education and Research Beijing 101408 China
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