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Bae JH, Lee CH, Jung D, Yea K, Song BJ, Lee H, Baek MC. Extracellular vesicle isolation and counting system (EVics) based on simultaneous tandem tangential flow filtration and large field-of-view light scattering. J Extracell Vesicles 2024; 13:e12479. [PMID: 38978321 PMCID: PMC11231039 DOI: 10.1002/jev2.12479] [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: 11/25/2023] [Revised: 04/15/2024] [Accepted: 06/17/2024] [Indexed: 07/10/2024] Open
Abstract
Although the isolation and counting of small extracellular vesicles (sEVs) are essential steps in sEV research, an integrated method with scalability and efficiency has not been developed. Here, we present a scalable and ready-to-use extracellular vesicle (EV) isolation and counting system (EVics) that simultaneously allows isolation and counting in one system. This novel system consists of (i) EVi, a simultaneous tandem tangential flow filtration (TFF)-based EV isolation component by applying two different pore-size TFF filters, and (ii) EVc, an EV counting component using light scattering that captures a large field-of-view (FOV). EVi efficiently isolated 50-200 nm-size sEVs from 15 µL to 2 L samples, outperforming the current state-of-the-art devices in purity and speed. EVc with a large FOV efficiently counted isolated sEVs. EVics enabled early observations of sEV secretion in various cell lines and reduced the cost of evaluating the inhibitory effect of sEV inhibitors by 20-fold. Using EVics, sEVs concentrations and sEV PD-L1 were monitored in a 23-day cancer mouse model, and 160 clinical samples were prepared and successfully applied to diagnosis. These results demonstrate that EVics could become an innovative system for novel findings in basic and applied studies in sEV research.
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Affiliation(s)
- Ju-Hyun Bae
- Department of Molecular Medicine, CMRI, Exosome Convergence Research Center (ECRC), School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Chan-Hyeong Lee
- Department of Molecular Medicine, CMRI, Exosome Convergence Research Center (ECRC), School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Dokyung Jung
- Department of Molecular Medicine, CMRI, Exosome Convergence Research Center (ECRC), School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Kyungmoo Yea
- Department of New Biology, DGIST, Daegu, Republic of Korea
- New Biology Research Center, DGIST, Daegu, Republic of Korea
| | - Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, Maryland, USA
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Moon-Chang Baek
- Department of Molecular Medicine, CMRI, Exosome Convergence Research Center (ECRC), School of Medicine, Kyungpook National University, Daegu, Republic of Korea
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Tian Y, Tian D, Peng X, Qiu H. Critical parameters to standardize the size and concentration determination of nanomaterials by nanoparticle tracking analysis. Int J Pharm 2024; 656:124097. [PMID: 38609058 DOI: 10.1016/j.ijpharm.2024.124097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/20/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024]
Abstract
The size and concentration are critical for the diagnostic and therapeutic applications of nanomaterials but the accurate measurement remains challenging. Nanoparticle tracking analysis (NTA) is widely used for size and concentration determination. However, highly repeatable standard operating procedures (SOPs) are absent. We adopted the "search-evaluate-test" strategy to standardize the measurement by searching the critical parameters. The particles per frame are linearly proportional to the sample concentration and the measured results are more accurate and repeatable when the concentration is 108-109 particles/ml. The optimal detection threshold is around 5. The optimal camera level is such that it allows clear observation of particles without diffractive rings and overexposure. The optimal speed is ≤ 50 in AU and ∼ 10 μl/min in flow rate. We then evaluated the protocol using polydisperse polystyrene particles and we found that NTA could discriminate particles in bimodal mixtures with high size resolution but the performance on multimodal mixtures is not as good as that of resistive pulse sensing (RPS). We further analyzed the polystyrene particles, SiO2 particles, and biological samples by NTA following the SOPs. The size and concentration measured by NTA differentially varies to those determined by RPS and transmission electron microscopy.
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Affiliation(s)
- Youxi Tian
- School of Pharmacy, Guangdong Medical University, No.1 City Avenue Songshan Lake Sci. &Tech. Industry Park, Dongguan 523808, China; School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China; Carbohydrate-based Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 200031, China
| | - Dong Tian
- Carbohydrate-based Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 200031, China
| | - Xinsheng Peng
- School of Pharmacy, Guangdong Medical University, No.1 City Avenue Songshan Lake Sci. &Tech. Industry Park, Dongguan 523808, China.
| | - Hong Qiu
- School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China; Carbohydrate-based Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 200031, China.
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3
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Liu C, Yazdani N, Moran CS, Salomon C, Seneviratne CJ, Ivanovski S, Han P. Unveiling clinical applications of bacterial extracellular vesicles as natural nanomaterials in disease diagnosis and therapeutics. Acta Biomater 2024; 180:18-45. [PMID: 38641182 DOI: 10.1016/j.actbio.2024.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 03/03/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Bacterial extracellular vesicles (BEVs) are naturally occurring bioactive membrane-bound nanoparticles released by both gram-negative and gram-positive bacterial species, exhibiting a multifaceted role in mediating host-microbe interactions across various physiological conditions. Increasing evidence supports BEVs as essential mediators of cell-to-cell communicaiton, influencing bacterial pathogenicity, disease mechanisms, and modulating the host immune response. However, the extent to which these BEV-mediated actions can be leveraged to predict disease onset, guide treatment strategies, and determine clinical outcomes remains uncertain, particularly in terms of their clinical translation potentials. This review briefly describes BEV biogenesis and their internalisation by recipient cells and summarises methods for isolation and characterization, essential for understanding their composition and cargo. Further, it discusses the potential of biofluid-associated BEVs as biomarkers for various diseases, spanning both cancer and non-cancerous conditions. Following this, we outline the ongoing human clinical trials of using BEVs for vaccine development. In addition to disease diagnostics, this review explores the emerging research of using natural or engineered BEVs as smart nanomaterials for applications in anti-cancer therapy and bone regeneration. This discussion extends to key factors for unlocking the clinical potential of BEVs, such as standardization of BEV isolation and characterisation, as well as other hurdles in translating these findings to the clinical setting. We propose that addressing these hurdles through collaborative research efforts and well-designed clinical trials holds the key to fully harnessing the clinical potential of BEVs. As this field advances, this review suggests that BEV-based nanomedicine has the potential to revolutionize disease management, paving the way for innovative diagnosis, therapeutics, and personalized medicine approaches. STATEMENT OF SIGNIFICANCE: Extracellular vesicles (EVs) from both host cells and bacteria serve as multifunctional biomaterials and are emerging in the fields of biomedicine, bioengineering, and biomaterials. However, the majority of current studies focus on host-derived EVs, leaving a gap in comprehensive research on bacteria-derived EVs (BEVs). Although BEVs offer an attractive option as nanomaterials for drug delivery systems, their unique nanostructure and easy-to-modify functions make them a potential method for disease diagnosis and treatment as well as vaccine development. Our work among the pioneering studies investigating the potential of BEVs as natural nanobiomaterials plays a crucial role in both understanding the development of diseases and therapeutic interventions.
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Affiliation(s)
- Chun Liu
- The University of Queensland, School of Dentistry, Centre for Oralfacial Regeneration, Rehabilitation and Reconstruction (COR3), Epigenetics Nanodiagnostic and Therapeutic Group, Brisbane, QLD 4006, Australia
| | - Negar Yazdani
- The University of Queensland, School of Dentistry, Centre for Oralfacial Regeneration, Rehabilitation and Reconstruction (COR3), Epigenetics Nanodiagnostic and Therapeutic Group, Brisbane, QLD 4006, Australia
| | - Corey S Moran
- The University of Queensland, School of Dentistry, Centre for Oralfacial Regeneration, Rehabilitation and Reconstruction (COR3), Epigenetics Nanodiagnostic and Therapeutic Group, Brisbane, QLD 4006, Australia
| | - Carlos Salomon
- Translational Extracellular Vesicles in Obstetrics and Gynae-Oncology Group, The University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, Faculty of Medicine, The University of Queensland, Brisbane, QLD, 4029 Australia
| | - Chaminda Jayampath Seneviratne
- The University of Queensland, School of Dentistry, Centre for Oralfacial Regeneration, Rehabilitation and Reconstruction (COR3), Epigenetics Nanodiagnostic and Therapeutic Group, Brisbane, QLD 4006, Australia
| | - Sašo Ivanovski
- The University of Queensland, School of Dentistry, Centre for Oralfacial Regeneration, Rehabilitation and Reconstruction (COR3), Epigenetics Nanodiagnostic and Therapeutic Group, Brisbane, QLD 4006, Australia.
| | - Pingping Han
- The University of Queensland, School of Dentistry, Centre for Oralfacial Regeneration, Rehabilitation and Reconstruction (COR3), Epigenetics Nanodiagnostic and Therapeutic Group, Brisbane, QLD 4006, Australia.
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4
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Mapfumo PP, Reichel LS, Hoeppener S, Traeger A. Improving Gene Delivery: Synergy between Alkyl Chain Length and Lipoic Acid for PDMAEMA Hydrophobic Copolymers. Macromol Rapid Commun 2024; 45:e2300649. [PMID: 38195002 DOI: 10.1002/marc.202300649] [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: 11/12/2023] [Revised: 12/31/2023] [Indexed: 01/11/2024]
Abstract
In the field of gene delivery, hydrophobic cationic copolymers hold great promise. They exhibit improved performance by effectively protecting genetic material from serum interactions while facilitating interactions with cellular membranes. However, managing cytotoxicity remains a significant challenge, prompting an investigation into suitable hydrophobic components. A particularly encouraging approach involves integrating nutrient components, like lipoic acid, which is known for its antioxidant properties and diverse cellular benefits such as cellular metabolism and growth. In this study, a copolymer library comprising 2-(dimethylamino)ethyl methacrylate (DMAEMA) and lipoic acid methacrylate (LAMA), combined with either n-butyl methacrylate (nBMA), ethyl methacrylate (EMA), or methyl methacrylate (MMA), is synthesized. This enables to probe the impact of lipoic acid incorporation while simultaneously exploring the influence of pendant acyclic alkyl chain length. The inclusion of lipoic acid results in a notable boost in transfection efficiency while maintaining low cytotoxicity. Interestingly, higher levels of transfection efficiency are achieved in the presence of nBMA, EMA, or MMA. However, a positive correlation between pendant acyclic alkyl chain length and cytotoxicity is observed. Consequently, P(DMAEMA-co-LAMA-co-MMA), emerges as a promising candidate. This is attributed to the optimal combination of low cytotoxic MMA and transfection-boosting LAMA, highlighting the crucial synergy between LAMA and MMA.
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Affiliation(s)
- Prosper P Mapfumo
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Liên S Reichel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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5
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Schöne N, Kemper M, Menck K, Evers G, Krekeler C, Schulze AB, Lenz G, Wardelmann E, Binder C, Bleckmann A. PD-L1 on large extracellular vesicles is a predictive biomarker for therapy response in tissue PD-L1-low and -negative patients with non-small cell lung cancer. J Extracell Vesicles 2024; 13:e12418. [PMID: 38453684 PMCID: PMC10920108 DOI: 10.1002/jev2.12418] [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: 03/31/2023] [Revised: 10/24/2023] [Accepted: 02/07/2024] [Indexed: 03/09/2024] Open
Abstract
Immunotherapy has revolutionized the treatment of patients with non-small cell lung cancer (NSCLC). High expression of tissue PD-L1 (tPD-L1) is currently the only approved biomarker for predicting treatment response. However, even tPD-L1 low (1-49%) and absent (<1%) patients might benefit from immunotherapy but, to date, there is no reliable biomarker, that can predict response in this particular patient subgroup. This study aimed to test whether tumour-associated extracellular vesicles (EVs) could fill this gap. Using NSCLC cell lines, we identified a panel of tumour-related antigens that were enriched on large EVs (lEVs) compared to smaller EVs. The levels of lEVs carrying these antigens were significantly elevated in plasma of NSCLC patients (n = 108) and discriminated them from controls (n = 77). Among the tested antigens, we focused on programmed cell death ligand 1 (PD-L1), which is a well-known direct target for immunotherapy. In plasma lEVs, PD-L1 was mainly found on a population of CD45- /CD62P+ lEVs and thus seemed to be associated with platelet-derived vesicles. Patients with high baseline levels of PD-L1+ lEVs in blood showed a significantly better response to immunotherapy and prolonged survival. This was particularly true in the subgroup of NSCLC patients with low or absent tPD-L1 expression, thus identifying PD-L1-positive lEVs in plasma as a novel predictive and prognostic marker for immunotherapy.
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Affiliation(s)
- Nadja Schöne
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
- University Hospital Münster, West German Cancer CenterMünsterGermany
| | - Marcel Kemper
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
- University Hospital Münster, West German Cancer CenterMünsterGermany
| | - Kerstin Menck
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
- University Hospital Münster, West German Cancer CenterMünsterGermany
| | - Georg Evers
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
- University Hospital Münster, West German Cancer CenterMünsterGermany
| | - Carolin Krekeler
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
- University Hospital Münster, West German Cancer CenterMünsterGermany
| | - Arik Bernard Schulze
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
- University Hospital Münster, West German Cancer CenterMünsterGermany
| | - Georg Lenz
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
| | - Eva Wardelmann
- University of Münster, Gerhard‐Domagk‐Institute of PathologyMünsterGermany
| | - Claudia Binder
- University Medicine Göttingen, Clinic for Hematology/Medical OncologyGöttingenGermany
| | - Annalen Bleckmann
- University of Münster, Department of Medicine A, Hematology, Oncology, and PneumologyMünsterGermany
- University Hospital Münster, West German Cancer CenterMünsterGermany
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6
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Ishii N, Noguchi K, Ikemoto MJ, Yohda M, Odahara T. Optimizing Exosome Preparation Based on Size and Morphology: Insights From Electron Microscopy. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:2068-2079. [PMID: 37831006 DOI: 10.1093/micmic/ozad103] [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] [Received: 06/01/2023] [Revised: 08/14/2023] [Accepted: 09/08/2023] [Indexed: 10/14/2023]
Abstract
Extracellular vesicles (EVs), including exosomes, are crucial in intercellular communication, but differentiating between exosomes and microvesicles is challenging due to their similar morphology and size. This study focuses on multivesicular bodies (MVBs), where exosomes mature, and optimizes exosome isolation using transmission electron microscopy (TEM) for size information. Considering that EVs are nanocolloidal particles, a salt-free Bis-Tris buffer is found to maintain EV integrity better than phosphate-buffered saline (PBS). Dynamic light scattering (DLS) and TEM analysis confirm that intact exosome fractions under the salt-free Bis-Tris buffer condition exhibit polydispersity, including a unique population of <50 nm vesicles resembling intraluminal membrane vesicles (ILVs) in MVBs, alongside larger populations. This <50 nm population disappears in PBS or Bis-Tris buffer with 140 mM NaCl, transforming into a monodisperse population >100 nm. Immunoelectron microscopy also validates the presence of CD63, an exosome biomarker, on approximately 50 nm EVs. These findings provide valuable insights into exosome characterization and isolation, essential for future biomedical applications in diagnostics and drug delivery.
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Affiliation(s)
- Noriyuki Ishii
- Cellular and Molecular Biotechnology Research Institute, Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central-6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
- Electron Microscopy Facility, Open Research Facilities Station, Open Research Platform Unit, Tsukuba Innovation Arena (TIA) Central Office, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central-6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, 2-24-16 Naka, Koganei, Tokyo 184-8588, Japan
| | - Mitsushi J Ikemoto
- Health and Medical Research Institute, Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central-6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
- Graduate School of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Masafumi Yohda
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Naka, Koganei, Tokyo 184-8588, Japan
| | - Takayuki Odahara
- Biomedical Research Institute, Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central-6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
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7
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Pelyhe C, Sturve J. Isolation and characterization of the morphology, size and particle number of rainbow trout (Oncorhynchus mykiss) and zebrafish (Danio rerio) cell line derived large and small extracellular vesicles. FISH PHYSIOLOGY AND BIOCHEMISTRY 2023; 49:1199-1214. [PMID: 37870723 PMCID: PMC10757702 DOI: 10.1007/s10695-023-01251-z] [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] [Received: 03/17/2023] [Accepted: 10/02/2023] [Indexed: 10/24/2023]
Abstract
Extracellular vesicles (EVs) are 50-1,000 nm lipid bilayer-bound vesicles, released into the extracellular environment by various cell types for intercellular communication purposes. The quantitative and qualitative characteristics of EVs can be affected by stress and pathological conditions. The majority of extracellular vesicle (EV) studies have been performed on mammalian cell lines or bodily fluids. EVs have been previously described from bodily fluids like plasma, serum or mucus in different fish species, however the available knowledge of fish cell line derived EVs is limited and in the vast majority of studies, the overall focus is on small EVs (< 200 nm). We isolated large and small extracellular vesicles from zebrafish (Danio rerio) liver (ZFL), rainbow trout (Oncorhynchus mykiss) liver (RTL-W1), gill (RTgill-W1) and intestinal epithelial (RTgutGC) cell lines using stepwise centrifugation and characterized the size and morphology of EVs. Here we demonstrated that large and small extracellular vesicles can be successfully isolated using stepwise centrifugation from the serum-free medium of the selected piscine cell lines after a 24-h incubation period. The size distribution of large and small EVs isolated from the piscine cell lines suggest that large and small EV groups show high diversity in size ranges, containing heterogenous subpopulations in sizes, and the results highly depend on the applied method and whether filtration steps were included following the isolation. The spherical morphology of EVs was verified by transmission electron microscopy.
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Affiliation(s)
- Csilla Pelyhe
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Joachim Sturve
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
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8
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Filippov SK, Khusnutdinov R, Murmiliuk A, Inam W, Zakharova LY, Zhang H, Khutoryanskiy VV. Dynamic light scattering and transmission electron microscopy in drug delivery: a roadmap for correct characterization of nanoparticles and interpretation of results. MATERIALS HORIZONS 2023; 10:5354-5370. [PMID: 37814922 DOI: 10.1039/d3mh00717k] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
In this focus article, we provide a scrutinizing analysis of transmission electron microscopy (TEM) and dynamic light scattering (DLS) as the two common methods to study the sizes of nanoparticles with focus on the application in pharmaceutics and drug delivery. Control over the size and shape of nanoparticles is one of the key factors for many biomedical systems. Particle size will substantially affect their permeation through biological membranes. For example, an enhanced permeation and retention effect requires a very narrow range of sizes of nanoparticles (50-200 nm) and even a minor deviation from these values will substantially affect the delivery of drug nanocarriers to the tumour. However, amazingly a great number of research papers in pharmaceutics and drug delivery report a striking difference in nanoparticle size measured by the two most popular experimental techniques (TEM and DLS). In some cases, this difference was reported to be 200-300%, raising the question of which size measurement result is more trustworthy. In this focus article, we primarily focus on the physical aspects that are responsible for the routinely observed mismatch between TEM and DLS results. Some of these factors such as concentration and angle dependencies are commonly underestimated and misinterpreted. We convincingly show that correctly used experimental procedures and a thorough analysis of results generated using both methods can eliminate the DLS and TEM data mismatch completely or will make the results much closer to each other. Also, we provide a clear roadmap for drug delivery and pharmaceutical researchers to conduct reliable DLS measurements.
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Affiliation(s)
- Sergey K Filippov
- School of Pharmacy, University of Reading, Whiteknights, RG6 6DX Reading, UK.
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland
| | - Ramil Khusnutdinov
- Institute of Pharmacy, Kazan State Medical University, 16 Fatykh Amirkhan, 420126 Kazan, Russian Federation
| | - Anastasiia Murmiliuk
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Prague 2, Czech Republic
| | - Wali Inam
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland
| | - Lucia Ya Zakharova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov Str., 420088 Kazan, Russian Federation
| | - Hongbo Zhang
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20520 Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland
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9
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Slynchuk V, Schedel C, Scheele M, Schnepf A. Stabilization of Colloidal Germanium Nanoparticles: From the Study to the Prospects of the Application in Thin-Film Technology. Int J Mol Sci 2023; 24:15948. [PMID: 37958931 PMCID: PMC10649905 DOI: 10.3390/ijms242115948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/24/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
We present the stabilization of halide-terminated Ge nanoparticles prepared via a disproportionation reaction of metastable Ge(I)X solutions with well-defined size distribution. Further tailoring of the stability of the Ge nanoparticles was achieved using variations in the substituent. Ge nanoparticles obtained in this way are readily dispersed in organic solvents, long-term colloidally stable, and are perfect prerequisites for thin-film preparation. This gives these nanomaterials a future in surface-dependent optical applications, as shown for the halide-terminated nanoparticles.
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Affiliation(s)
- Viktoriia Slynchuk
- Institute of Inorganic Chemistry, University of Tuebingen, Auf der Morgenstelle 18, D-72076 Tuebingen, Germany;
| | - Christine Schedel
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 18, D-72076 Tuebingen, Germany (M.S.)
| | - Marcus Scheele
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 18, D-72076 Tuebingen, Germany (M.S.)
| | - Andreas Schnepf
- Institute of Inorganic Chemistry, University of Tuebingen, Auf der Morgenstelle 18, D-72076 Tuebingen, Germany;
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10
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Fluksman A, Lafuente A, Braunstein R, Steinberg E, Friedman N, Yekhin Z, Roca AG, Nogues J, Hazan R, Sepulveda B, Benny O. Modular Drug-Loaded Nanocapsules with Metal Dome Layers as a Platform for Obtaining Synergistic Therapeutic Biological Activities. ACS APPLIED MATERIALS & INTERFACES 2023; 15:50330-50343. [PMID: 37861446 PMCID: PMC10623511 DOI: 10.1021/acsami.3c07188] [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] [Received: 05/19/2023] [Accepted: 09/29/2023] [Indexed: 10/21/2023]
Abstract
Multifunctional drug-loaded polymer-metal nanocapsules have attracted increasing attention in drug delivery due to their multifunctional potential endowed by drug activity and response to physicochemical stimuli. Current chemical synthesis methods of polymer/metal capsules require specific optimization of the different components to produce particles with precise properties, being particularly complex for Janus structures combining polymers and ferromagnetic and highly reactive metals. With the aim to generate tunable synergistic nanotherapeutic actuation with enhanced drug effects, here we demonstrate a versatile hybrid chemical/physical fabrication strategy to incorporate different functional metals with tailored magnetic, optical, or chemical properties on solid drug-loaded polymer nanoparticles. As archetypical examples, we present poly(lactic-co-glycolic acid) (PLGA) nanoparticles (diameters 100-150 nm) loaded with paclitaxel, indocyanine green, or erythromycin that are half-capped by either Fe, Au, or Cu layers, respectively, with application in three biomedical models. The Fe coating on paclitaxel-loaded nanocapsules permitted efficient magnetic enhancement of the cancer spheroid assembly, with 40% reduction of the cross-section area after 24 h, as well as a higher paclitaxel effect. In addition, the Fe-PLGA nanocapsules enabled external contactless manipulation of multicellular cancer spheroids with a speed of 150 μm/s. The Au-coated and indocyanine green-loaded nanocapsules demonstrated theranostic potential and enhanced anticancer activity in vitro and in vivo due to noninvasive fluorescence imaging with long penetration near-infrared (NIR) light and simultaneous photothermal-photodynamic actuation, showing a 3.5-fold reduction in the tumor volume growth with only 5 min of NIR illumination. Finally, the Cu-coated erythromycin-loaded nanocapsules exhibited enhanced antibacterial activity with a 2.5-fold reduction in the MIC50 concentration with respect to the free or encapsulated drug. Altogether, this technology can extend a nearly unlimited combination of metals, polymers, and drugs, thus enabling the integration of magnetic, optical, and electrochemical properties in drug-loaded nanoparticles to externally control and improve a wide range of biomedical applications.
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Affiliation(s)
- Arnon Fluksman
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Aritz Lafuente
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Universitat
Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Ron Braunstein
- Institute
of Biomedical and Oral Research (IBOR), Faculty of Dental Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Eliana Steinberg
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Nethanel Friedman
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Zhanna Yekhin
- Department
of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah
Medical Center, The Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Alejandro G. Roca
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Josep Nogues
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Ronen Hazan
- Institute
of Biomedical and Oral Research (IBOR), Faculty of Dental Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
| | - Borja Sepulveda
- Instituto
de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Ofra Benny
- Institute
for Drug Research (IDR), School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 9112102 Jerusalem, Israel
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11
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Farid A, Ooda A, Nabil A, Nasser A, Ahmed E, Ali F, Mohamed F, Farid H, Badran M, Ahmed M, Ibrahim M, Rasmy M, Saleeb M, Riad V, Ibrahim Y, Madbouly N. Eobania vermiculata whole-body muscle extract-loaded chitosan nanoparticles enhanced skin regeneration and decreased pro-inflammatory cytokines in vivo. J Nanobiotechnology 2023; 21:373. [PMID: 37828599 PMCID: PMC10571447 DOI: 10.1186/s12951-023-02143-3] [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: 08/20/2023] [Accepted: 10/04/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Usually, wounds recover in four to six weeks. Wounds that take longer time than this to heal are referred to as chronic wounds. Impaired healing can be caused by several circumstances like hypoxia, microbial colonization, deficiency of blood flow, reperfusion damage, abnormal cellular reaction and deficiencies in collagen production. Treatment of wounds can be enhanced through systemic injection of the antibacterial drugs and/or other topical applications of medications. However, there are a number of disadvantages to these techniques, including the limited or insufficient medication penetration into the underlying skin tissue and the development of bacterial resistance with repeated antibiotic treatment. One of the more recent treatment options may involve using nanotherapeutics in combination with naturally occurring biological components, such as snail extracts (SE). In this investigation, chitosan nanoparticles (CS NPs) were loaded with an Eobania vermiculata whole-body muscle extract. The safety of the synthesized NPs was investigated in vitro to determine if these NPs might be utilized to treat full-skin induced wounds in vivo. RESULTS SEM and TEM images showed uniformly distributed, spherical, smooth prepared CS NPs and snail extract-loaded chitosan nanoparticles (SE-CS NPs) with size ranges of 76-81 and 91-95 nm, respectively. The zeta potential of the synthesized SE-CS NPs was - 24.5 mV, while that of the CS NPs was 25 mV. SE-CS NPs showed a remarkable, in vitro, antioxidant, anti-inflammatory and antimicrobial activities. Successfully, SE-CS NPs (50 mg/kg) reduced the oxidative stress marker (malondialdehyde), reduced inflammation, increased the levels of the antioxidant enzymes (superoxide dismutase and glutathione), and assisted the healing of induced wounds. SE-CS NPs (50 mg/kg) can be recommended to treat induced wounds safely. SE was composed of a collection of several wound healing bioactive components [fatty acids, amino acids, minerals and vitamins) that were loaded on CS NPs. CONCLUSIONS The nanostructure enabled bioactive SE components to pass through cell membranes and exhibit their antioxidant and anti-inflammatory actions, accelerating the healing process of wounds. Finally, it is advised to treat rats' wounds with SE-CS NPs.
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Affiliation(s)
- Alyaa Farid
- Biotechnology Department, Faculty of Science, Cairo University, Giza, Egypt.
| | - Adham Ooda
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Ahmed Nabil
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Areej Nasser
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Esraa Ahmed
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Fatma Ali
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Fatma Mohamed
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Habiba Farid
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Mai Badran
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Mariam Ahmed
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Mariam Ibrahim
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Mariam Rasmy
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Martina Saleeb
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Vereena Riad
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Yousr Ibrahim
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Neveen Madbouly
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
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12
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Krupnik L, Joshi P, Kappler A, Flühmann B, Alston AB, Digigow R, Wick P, Neels A. Critical nanomaterial attributes of iron-carbohydrate nanoparticles: Leveraging orthogonal methods to resolve the 3-dimensional structure. Eur J Pharm Sci 2023; 188:106521. [PMID: 37423578 DOI: 10.1016/j.ejps.2023.106521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/08/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Intravenous iron-carbohydrate nanomedicines are widely used to treat iron deficiency and iron deficiency anemia across a wide breadth of patient populations. These colloidal solutions of nanoparticles are complex drugs which inherently makes physicochemical characterization more challenging than small molecule drugs. There have been advancements in physicochemical characterization techniques such as dynamic light scattering and zeta potential measurement, that have provided a better understanding of the physical structure of these drug products in vitro. However, establishment and validation of complementary and orthogonal approaches are necessary to better understand the 3-dimensional physical structure of the iron-carbohydrate complexes, particularly with regard to their physical state in the context of the nanoparticle interaction with biological components such as whole blood (i.e. the nano-bio interface).
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Affiliation(s)
- Leonard Krupnik
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
| | - Prachi Joshi
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany
| | - Andreas Kappler
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany; Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, Tuebingen 72076, Germany
| | - Beat Flühmann
- CSL Vifor, Flughofstrasse 61, Glattbrug 8152, Switzerland
| | | | | | - Peter Wick
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Antonia Neels
- Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
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13
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Yasuura M, Tan ZL, Horiguchi Y, Ashiba H, Fukuda T. Improvement of Sensitivity and Speed of Virus Sensing Technologies Using nm- and μm-Scale Components. SENSORS (BASEL, SWITZERLAND) 2023; 23:6830. [PMID: 37571612 PMCID: PMC10422600 DOI: 10.3390/s23156830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/20/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023]
Abstract
Various viral diseases can be widespread and cause severe disruption to global society. Highly sensitive virus detection methods are needed to take effective measures to prevent the spread of viral infection. This required the development of rapid virus detection technology to detect viruses at low concentrations, even in the biological fluid of patients in the early stages of the disease or environmental samples. This review describes an overview of various virus detection technologies and then refers to typical technologies such as beads-based assay, digital assay, and pore-based sensing, which are the three modern approaches to improve the performance of viral sensing in terms of speed and sensitivity.
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Affiliation(s)
- Masato Yasuura
- Sensing System Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan; (Z.L.T.); (Y.H.); (H.A.); (T.F.)
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14
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Šimić M, Neuper C, Hohenester U, Hill C. Optofluidic force induction as a process analytical technology. Anal Bioanal Chem 2023:10.1007/s00216-023-04796-3. [PMID: 37392213 PMCID: PMC10404209 DOI: 10.1007/s00216-023-04796-3] [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: 02/27/2023] [Revised: 05/15/2023] [Accepted: 06/02/2023] [Indexed: 07/03/2023]
Abstract
Manufacturers of nanoparticle-based products rely on detailed information about critical process parameters, such as particle size and size distributions, concentration, and material composition, which directly reflect the quality of the final product. These process parameters are often obtained using offline characterization techniques that cannot provide the temporal resolution to detect dynamic changes in particle ensembles during a production process. To overcome this deficiency, we have recently introduced Optofluidic Force Induction (OF2i) for optical real-time counting with single particle sensitivity and high throughput. In this paper, we apply OF2i to highly polydisperse and multi modal particle systems, where we also monitor evolutionary processes over large time scales. For oil-in-water emulsions we detect in real time the transition between high-pressure homogenization states. For silicon carbide nanoparticles, we exploit the dynamic OF2i measurement capabilities to introduce a novel process feedback parameter based on the dissociation of particle agglomerates. Our results demonstrate that OF2i provides a versatile workbench for process feedback in a wide range of applications.
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Affiliation(s)
- Marko Šimić
- Brave Analytics GmbH, Stiftingtalstraße 14, Graz, 8010, Styria, Austria.
- Institute of Physics, University of Graz, Universitätsplatz 5, Graz, 8010, Styria, Austria.
- Gottfried Schatz Research Center, Division of Medical Physics and Biophysics, Medical University of Graz, Neue Stiftingtalstraße 2, Graz, 8010, Styria, Austria.
| | - Christian Neuper
- Brave Analytics GmbH, Stiftingtalstraße 14, Graz, 8010, Styria, Austria
- Graz Centre for Electron Microscopy, Steyrergasse 17, Graz, 8010, Styria, Austria
| | - Ulrich Hohenester
- Institute of Physics, University of Graz, Universitätsplatz 5, Graz, 8010, Styria, Austria
| | - Christian Hill
- Brave Analytics GmbH, Stiftingtalstraße 14, Graz, 8010, Styria, Austria
- Gottfried Schatz Research Center, Division of Medical Physics and Biophysics, Medical University of Graz, Neue Stiftingtalstraße 2, Graz, 8010, Styria, Austria
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15
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Marques SS, Cant DJH, Minelli C, Segundo MA. Combining orthogonal measurements to unveil diclofenac encapsulation into polymeric and lipid nanocarriers. Anal Chim Acta 2023; 1262:341234. [PMID: 37179055 DOI: 10.1016/j.aca.2023.341234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/06/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
The quantification of the drug associated to nanoparticle carriers, often expressed in terms of encapsulation efficiency, is a regulatory requirement. The establishment of independent methods to evaluate this parameter provides a means for measurement validation, which is critical in providing confidence in the methods and enabling the robust characterization of nanomedicines. Chromatography is traditionally used to measure drug encapsulation into nanoparticles. Here, we describe an additional independent strategy based on analytical centrifugation. The encapsulation of diclofenac into nanocarriers was quantified based on the mass difference between placebo (i.e. unloaded) and loaded nanoparticles. This difference was estimated using particle densities measured by differential centrifugal sedimentation (DCS) and size and concentration values measured by particle tracking analysis (PTA). The proposed strategy was applied to two types of formulations, namely poly(lactic-co-glycolic acid) (PLGA) nanoparticles and nanostructured lipid carriers, which were analysed by DCS operated in sedimentation and flotation modes, respectively. The results were compared to those from high performance liquid chromatography (HPLC) measurements. Additionally, X-ray photoelectron spectroscopy analysis was used to elucidate the surface chemical composition of the placebo and loaded nanoparticles. The proposed approach enables the monitoring of batch-to-batch consistency and the quantification of diclofenac association to PLGA nanoparticles from 0.7 ng to 5 ng of drug per 1 μg of PLGA, with good linear correlation between DCS and HPLC results (R2 = 0.975). Using the same approach, similar quantification in lipid nanocarriers was possible for a loading of diclofenac ≥1.1 ng per 1 μg of lipids, with results in agreement with the HPLC method (R2 = 0.971). Hence, the strategy proposed here expands the analytical tools available for evaluating nanoparticles encapsulation efficiency, being thus significant for increasing the robustness of drug-delivery nanocarriers characterization.
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Affiliation(s)
- Sara S Marques
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; National Physical Laboratory, Hampton Road, Teddington, TW11 0LW, United Kingdom
| | - David J H Cant
- National Physical Laboratory, Hampton Road, Teddington, TW11 0LW, United Kingdom
| | - Caterina Minelli
- National Physical Laboratory, Hampton Road, Teddington, TW11 0LW, United Kingdom.
| | - Marcela A Segundo
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
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16
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Figat AM, Bartosewicz B, Liszewska M, Budner B, Norek M, Jankiewicz BJ. α-Amino Acids as Reducing and Capping Agents in Gold Nanoparticles Synthesis Using the Turkevich Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37314886 DOI: 10.1021/acs.langmuir.3c00507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Amino acid-capped gold nanoparticles (AuNPs) are a promising tool for various applications, including therapeutics and diagnostics. Most often, amino acids are used to cap AuNPs synthesized with other reducing agents. However, only a few studies have been dedicated to using α-amino acids as reducing and capping agents in AuNPs synthesis. Hence, there are still several gaps in understanding their role in reducing gold salts. Here, we used 20 proteinogenic α-amino acids and one non-proteinogenic α-amino acid in analogy to sodium citrate as reducing and capping agents in synthesizing AuNPs using the Turkevich method. Only four of the twenty-one investigated amino acids have not yielded gold nanoparticles. The shape, size distribution, stability, and optical properties of synthesized nanoparticles were characterized by scanning electron microscopy, differential centrifugal sedimentation, the phase analysis light scattering technique, and UV-vis spectroscopy. The physicochemical characteristics of synthesized AuNPs varied with the amino acid used for the reduction. We proposed that in the initial stage of gold salts reduction most of the used α-amino acids behave similarly to citrate in the Turkevich method. However, their different physicochemical properties resulting from differences in their chemical structures significantly influence the outcomes of reactions.
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Affiliation(s)
- Aleksandra M Figat
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Bartosz Bartosewicz
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Malwina Liszewska
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Bogusław Budner
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Małgorzata Norek
- Faculty of Advanced Technologies and Chemistry, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
| | - Bartłomiej J Jankiewicz
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland
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17
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DE SILVA WND, ATTANAYAKE AP, ARAWWAWALA LDAM, KARUNARATNE DN, PAMUNUWA GK. In vitro antioxidant activity of alginate nanoparticles encapsulating the aqueous extract of Coccinia grandis L. Turk J Chem 2023; 47:715-725. [PMID: 38174060 PMCID: PMC10760550 DOI: 10.55730/1300-0527.3573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 08/25/2023] [Accepted: 06/05/2023] [Indexed: 01/05/2024] Open
Abstract
Bioactive compounds in medicinal plants are more susceptible to preventing oxidative stress. Encapsulation of herbal extracts has empowered the properties and characteristics of bioactive compounds. Nanoencapsulation allows the enhancement of the stability of extracts and targeted drug delivery. The present study aims to determine the antioxidant activity of alginate nanoparticles encapsulating the aqueous extract of Coccinia grandis L. (Family: Cucurbitaceae). The aqueous extract of C. grandis (AqCG) was prepared by using ultrasonication (40 °C, 20 min, 40 kHz) followed by refluxing (2½ h). The prepared AqCG (1-5 mg/mL) encapsulated alginate nanoparticles were synthesized by ionic gelation with the addition of extracts and CaCl2. Characterization of nanoparticles was performed via encapsulation efficiency (EE%), loading capacity (LC%), particle size (PS), scanning electron microscopy (SEM), zeta potential and Fourier transform infrared (FTIR) spectroscopy analysis. The antioxidant activity of the nanoparticles was evaluated in vitro by the ferric reducing antioxidant (FRAP) assay, 2,2-di-phenyl-1-picrylhydrazyl (DPPH) radical scavenging assay and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging assay. One-way analysis of variance (ANOVA) followed by Tukey's posthoc test was used to analyze the data. Maximum LC% (3.07 ± 0.11) and average particle size (71 nm from SEM) were obtained for alginate nanoparticles encapsulated at 4 mg/mL extract concentration. The IC50 values for DPPH, ABTS, and FRAP were 6.49 ± 0.10 mg/mL, 0.24 ± 0.01 mg/mL, and 20.63 ± 0.28 mg Trolox equivalent/g of extract respectively for alginate nanoparticles encapsulating the AqCG. Nanoparticles have shown a significant difference in IC50 values compared to Trolox (p < 0.05). The successful encapsulation of the AqCG in the alginate matrix was evidenced by FTIR and SEM analysis. Encapsulation contributed to enhancing the antioxidant activity in terms of ABTS assay when compared to the AqCG. However, in vitro release and stability studies are warranted to facilitate the development of a commercially viable nanonutraceutical using alginate nanoparticles encapsulating the AqCG.
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Affiliation(s)
| | | | | | | | - Geethi Kaushalya PAMUNUWA
- Department of Horticulture and Landscape Gardening, Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Kuliyapitiya,
Sri Lanka
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18
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Bian J, Gobalasingham N, Purchel A, Lin J. The Power of Field-Flow Fractionation in Characterization of Nanoparticles in Drug Delivery. Molecules 2023; 28:molecules28104169. [PMID: 37241911 DOI: 10.3390/molecules28104169] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Asymmetric-flow field-flow fractionation (AF4) is a gentle, flexible, and powerful separation technique that is widely utilized for fractionating nanometer-sized analytes, which extend to many emerging nanocarriers for drug delivery, including lipid-, virus-, and polymer-based nanoparticles. To ascertain quality attributes and suitability of these nanostructures as drug delivery systems, including particle size distributions, shape, morphology, composition, and stability, it is imperative that comprehensive analytical tools be used to characterize the native properties of these nanoparticles. The capacity for AF4 to be readily coupled to multiple online detectors (MD-AF4) or non-destructively fractionated and analyzed offline make this technique broadly compatible with a multitude of characterization strategies, which can provide insight on size, mass, shape, dispersity, and many other critical quality attributes. This review will critically investigate MD-AF4 reports for characterizing nanoparticles in drug delivery, especially those reported in the last 10-15 years that characterize multiple attributes simultaneously downstream from fractionation.
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Affiliation(s)
- Juan Bian
- Genentech Research and Early Development, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Nemal Gobalasingham
- Wyatt Technology Corporation, 6330 Hollister Ave, Santa Barbara, CA 93117, USA
| | - Anatolii Purchel
- Wyatt Technology Corporation, 6330 Hollister Ave, Santa Barbara, CA 93117, USA
| | - Jessica Lin
- Genentech Research and Early Development, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
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19
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Huber MJ, Ivleva NP, Booth AM, Beer I, Bianchi I, Drexel R, Geiss O, Mehn D, Meier F, Molska A, Parot J, Sørensen L, Vella G, Prina-Mello A, Vogel R, Caputo F. Physicochemical characterization and quantification of nanoplastics: applicability, limitations and complementarity of batch and fractionation methods. Anal Bioanal Chem 2023:10.1007/s00216-023-04689-5. [PMID: 37106123 DOI: 10.1007/s00216-023-04689-5] [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: 12/22/2022] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023]
Abstract
A comprehensive physicochemical characterization of heterogeneous nanoplastic (NPL) samples remains an analytical challenge requiring a combination of orthogonal measurement techniques to improve the accuracy and robustness of the results. Here, batch methods, including dynamic light scattering (DLS), nanoparticle tracking analysis (NTA), tunable resistive pulse sensing (TRPS), transmission electron microscopy (TEM), and scanning electron microscopy (SEM), as well as separation/fractionation methods such as centrifugal liquid sedimentation (CLS) and field-flow fractionation (FFF)-multi-angle light scattering (MALS) combined with pyrolysis gas chromatography mass spectrometry (pyGC-MS) or Raman microspectroscopy (RM) were evaluated for NPL size, shape, and chemical composition measurements and for quantification. A set of representative/test particles of different chemical natures, including (i) polydisperse polyethylene (PE), (ii) (doped) polystyrene (PS) NPLs, (iii) titanium dioxide, and (iv) iron oxide nanoparticles (spherical and elongated), was used to assess the applicability and limitations of the selected methodologies. Particle sizes and number-based concentrations obtained by orthogonal batch methods (DLS, NTA, TRPS) were comparable for monodisperse spherical samples, while higher deviations were observed for polydisperse, agglomerated samples and for non-spherical particles, especially for light scattering methods. CLS and TRPS offer further insight with increased size resolution, while detailed morphological information can be derived by electron microscopy (EM)-based approaches. Combined techniques such as FFF coupled to MALS and RM can provide complementary information on physical and chemical properties by online measurements, while pyGC-MS analysis of FFF fractions can be used for the identification of polymer particles (vs. inorganic particles) and for their offline (semi)quantification. However, NPL analysis in complex samples will continue to present a serious challenge for the evaluated techniques without significant improvements in sample preparation.
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Affiliation(s)
- Maximilian J Huber
- Institute of Water Chemistry (IWC), Chair of Analytical Chemistry and Water Chemistry, School of Natural Sciences (NAT, Dep. Chemistry), Technical University of Munich (TUM), Lichtenbergstr. 4, 85748, Garching, Germany
| | - Natalia P Ivleva
- Institute of Water Chemistry (IWC), Chair of Analytical Chemistry and Water Chemistry, School of Natural Sciences (NAT, Dep. Chemistry), Technical University of Munich (TUM), Lichtenbergstr. 4, 85748, Garching, Germany.
| | - Andy M Booth
- Department of Climate and Environment, SINTEF Ocean AS, Trondheim, Norway.
| | - Irina Beer
- Institute of Water Chemistry (IWC), Chair of Analytical Chemistry and Water Chemistry, School of Natural Sciences (NAT, Dep. Chemistry), Technical University of Munich (TUM), Lichtenbergstr. 4, 85748, Garching, Germany
| | - Ivana Bianchi
- Joint Research Centre (JRC), European Commission, Ispra, Italy
| | | | - Otmar Geiss
- Joint Research Centre (JRC), European Commission, Ispra, Italy
| | - Dora Mehn
- Joint Research Centre (JRC), European Commission, Ispra, Italy
| | | | - Alicja Molska
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway
| | - Jeremie Parot
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway
| | - Lisbet Sørensen
- Department of Climate and Environment, SINTEF Ocean AS, Trondheim, Norway
| | - Gabriele Vella
- Laboratory of Biological Characterization for Advanced Materials (LBCAM), Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Adriele Prina-Mello
- Laboratory of Biological Characterization for Advanced Materials (LBCAM), Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Robert Vogel
- School of Mathematics and Physics, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Fanny Caputo
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway.
- Laboratoire National de Métrologie et d'Essais, Paris, France.
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20
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Rahn H, Oeztuerk M, Hentze N, Junge F, Hollmann M. The Strengths of Total Holographic Video Microscopy in Detecting Sub-Visible Protein Particles in Biopharmaceuticals: A Comparison to Flow Imaging and Resonant Mass Measurement. J Pharm Sci 2023; 112:985-990. [PMID: 36596393 DOI: 10.1016/j.xphs.2022.12.023] [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: 08/16/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 01/02/2023]
Abstract
Determination of subvisible particle (SVP) content in biopharmaceuticals is a prerequisite to ensure the quality of liquid biopharmaceutical products. Here, we present a comparison of the recently introduced holographic video microscopy (total holographic characterization, THC) with two orthogonal and well-established analytical technologies: micro flow imaging (MFI) and resonant mass measurement (RMM). The capabilities of the THC were investigated under conditions commonly applied in drug product development. Three different antibody products were used at different concentrations and formulations to cover a wide range of realistic use-cases. The comparison was particularly focused on protein aggregates to investigate the applicability of THC to this critical class of particles in drug product development. Protein concentrations up to 100 mg/ml were investigated covering a broad range of viscosity and refractive indices, both important parameters in particle detection. The comparison reveals that THC is highly sensitive to detect protein aggregates in a size range from 0.5 µm to 10 µm. THC shows a significant superiority to FI and RMM in detecting heterogenous protein aggregates which often appear as transparent and porous particles. Additionally, THC needs very small sample amount of about 30 µl and short measurement times, making it applicable for early development stages and high-throughput approaches. These results show that THC is a valuable supplement to the existing particle characterization method portfolio in drug product development.
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Affiliation(s)
- Harri Rahn
- AbbVie Deutschland GmbH & Co. KG, Knollstraße, Ludwigshafen 67061, Germany.
| | - Merve Oeztuerk
- AbbVie Deutschland GmbH & Co. KG, Knollstraße, Ludwigshafen 67061, Germany
| | - Nikolai Hentze
- AbbVie Deutschland GmbH & Co. KG, Knollstraße, Ludwigshafen 67061, Germany
| | - Friederike Junge
- AbbVie Deutschland GmbH & Co. KG, Knollstraße, Ludwigshafen 67061, Germany
| | - Markus Hollmann
- AbbVie Deutschland GmbH & Co. KG, Knollstraße, Ludwigshafen 67061, Germany
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21
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Atomic Force Microscopic Imaging of mRNA-lipid Nanoparticles in Aqueous Medium. J Pharm Sci 2023; 112:648-652. [PMID: 36462707 DOI: 10.1016/j.xphs.2022.11.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022]
Abstract
The efficacy of mRNA-lipid nanoparticles (mRNA-LNPs) depends on several factors, including their size and morphology. This study presents a new technique to characterize mRNA-LNPs in an aqueous medium using atomic force microscopy (AFM). This method utilizes an anti-polyethylene glycol antibody to immobilize mRNA-LNPs onto a glass substrate without corruption, which cannot be avoided with conventional procedures using solid substrates such as mica and glass. The obtained AFM images showed spherical and bleb-like structures of mRNA-LNPs, consistent with previous observations made using cryo-transmission electron microscopy. The AFM method also revealed the predominant existence of nanoparticles with a diameter < 60 nm, which were not detectable by dynamic light scattering and nanoparticle tracking analysis. As mRNA-LNPs are usually not monodisperse, but rather polydisperse, the AFM method can provide useful complementary information about mRNA-LNPs in their development and quality assessment.
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22
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Figueiredo A, Anholeto LA, Cola DF, Fantatto RR, Gainza YA, Dos Santos IB, Viçozzi GP, Ávila DS, Fraceto LF, Chagas ACDS. Acaricides containing zein nanoparticles: a tool for a lower impact control of the cattle tick Rhipicephalus microplus. Vet Parasitol 2023; 318:109918. [PMID: 37054578 DOI: 10.1016/j.vetpar.2023.109918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023]
Abstract
Nanoformulations containing zein nanoparticles (ZN) can promote the stability and protection of molecules with acaricidal activity. The present study sought to develop nanoformulations with ZN associated with cypermethrin (CYPE) + chlorpyrifos (CHLO) + a plant compound (citral, menthol or limonene), characterize them, and verify their efficacy against Rhipicephalus microplus ticks. Additionally, we aimed to assess its safety in nontarget nematodes found in soil at a site subjected to contamination by acaricides. The nanoformulations were characterized by dynamic light scattering and nanoparticle tracking analysis. Nanoformulations 1 (ZN+CYPE+CHLO+citral), 2 (ZN+CYPE+CHLO+menthol), and 3 (ZN+CYPE+CHLO+limonene) were measured for diameter, polydispersion, zeta potential, concentration, and encapsulation efficiency. Nanoformulations 1, 2, and 3 were evaluated in a range from 0.004 to 0.466 mg/mL on R. microplus larvae and caused mortality > 80% at concentrations above 0.029 mg/mL. The commercial acaricide Colosso® (CYPE 15 g + CHLO 25 g + citronellal 1 g) was evaluated also from 0.004 to 0.512 mg/mL and resulted in 71.9% larval mortality at 0.064 mg/mL. Formulations 1, 2, and 3 at 0.466 mg/mL showed acaricidal efficacy of 50.2%, 40.5%, and 60.1% on engorged females, respectively, while Colosso® at 0.512 mg/mL obtained only 39.4%. The nanoformulations exhibited long residual period of activity and lower toxicity to nontarget nematodes. ZN was able to protect the active compounds against degradation during the storage period. Thus, ZN can be an alternative for the development of new acaricidal formulations using lower concentrations of active compounds.
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Affiliation(s)
- Amanda Figueiredo
- School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Rod. Prof. Paulo Donato Castellane, Jaboticabal SP, 14884-900, Brazil
| | - Luís Adriano Anholeto
- Brazilian Agricultural Research Corporation (EMBRAPA), Southeast Livestock Unit, Rod. Washington Luiz, Km 234 s/n, Fazenda Canchim, São Carlos, SP 13560-970, Brazil
| | - Diego Faria Cola
- Institute of Science and Technology of Sorocaba, São Paulo State University (UNESP), Av. Três de março, 511, Alto da Boa Vista, Sorocaba, SP 18087-180, Brazil
| | - Rafaela Regina Fantatto
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Rod. Araraquara-Jaú, km 1, Campos Ville, Araraquara SP, 14800-903, Brazil
| | - Yousmel Alemán Gainza
- School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Rod. Prof. Paulo Donato Castellane, Jaboticabal SP, 14884-900, Brazil
| | - Isabella Barbosa Dos Santos
- School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Rod. Prof. Paulo Donato Castellane, Jaboticabal SP, 14884-900, Brazil
| | - Gabriel Pedroso Viçozzi
- Laboratory of Biochemistry and Toxicology in Caenorhabditis elegans, Federal University of Pampa, BR 472, Km 592, Uruguaiana, RS 97501-970, Brazil
| | - Daiana Silva Ávila
- Laboratory of Biochemistry and Toxicology in Caenorhabditis elegans, Federal University of Pampa, BR 472, Km 592, Uruguaiana, RS 97501-970, Brazil
| | - Leonardo Fernandes Fraceto
- Institute of Science and Technology of Sorocaba, São Paulo State University (UNESP), Av. Três de março, 511, Alto da Boa Vista, Sorocaba, SP 18087-180, Brazil
| | - Ana Carolina de Souza Chagas
- Brazilian Agricultural Research Corporation (EMBRAPA), Southeast Livestock Unit, Rod. Washington Luiz, Km 234 s/n, Fazenda Canchim, São Carlos, SP 13560-970, Brazil.
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23
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Investigating the effect of diluents and fat globules on the size measurement of casein micelles by dynamic light scattering. Int Dairy J 2023. [DOI: 10.1016/j.idairyj.2023.105640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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24
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Peng H, Grob L, Weiß LJK, Hiendlmeier L, Music E, Kopic I, F Teshima T, Rinklin P, Wolfrum B. Inkjet-printed 3D micro-ring-electrode arrays for amperometric nanoparticle detection. NANOSCALE 2023; 15:4006-4013. [PMID: 36727303 DOI: 10.1039/d2nr05640b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Chip-based impact electrochemistry can provide means to measure nanoparticles in solution by sensing their stochastic collisions on appropriately-polarized microelectrodes. However, a planar microelectrode array design still restricts the particle detection to the chip surface and does not allow detection in 3D environments. In this work, we report a fast fabrication process for 3D microelectrode arrays by combining ink-jet printing with laser-patterning. To this end, we printed 3D pillars from polyacrylate ink as a scaffold. Then, the metal structures are manufactured via sputtering and laser-ablation. Finally, the chip is passivated with a parylene-C layer and the electrode tips are created via laser-ablation in a vertical alignment. As a proof of principle, we employ our 3D micro-ring-electrode arrays for single impact recordings from silver nanoparticles.
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Affiliation(s)
- Hu Peng
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
| | - Leroy Grob
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
| | - Lennart Jakob Konstantin Weiß
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
| | - Lukas Hiendlmeier
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
| | - Emir Music
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
| | - Inola Kopic
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
| | - Tetsuhiko F Teshima
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
- Medical & Health Informatics Laboratories NTT Research Incorporated 940 Stewart Dr, Sunnyvale, CA 94085, USA
| | - Philipp Rinklin
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
| | - Bernhard Wolfrum
- Neuroelectronics, Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Hans-Piloty-Str. 1, Garching, 85748, Germany.
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25
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Yamada I, Kataoka T, Ikeda R, Tagaya M. Investigation into the Photochemical Properties of Methylene Blue-Immobilized Hydroxyapatite Nanoparticles for Theranostic Application. ACS APPLIED BIO MATERIALS 2023; 6:473-482. [PMID: 36648755 DOI: 10.1021/acsabm.2c00756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In the biomedical field, there has been a requirement for developing theranostic nanomaterials with higher biosafety, leading to both diagnosis and therapy. Methylene blue (MB+) is an organic dye with both photoluminescence (PL) and photosensitization abilities to generate singlet oxygen (1O2). However, MB+ easily loses its generation ability by hydrogen reduction in vivo or by forming aggregates. In this study, MB+ immobilized on biocompatible hydroxyapatite (HA) nanoparticles was applied for the bifunctions of efficient PL and photosensitization. The MB+-immobilized HA nanoparticles (MH) formed aggregates with sizes of 80-100 nm in phosphate buffer (PB). The generation amount and efficiency of 1O2 from the nanoparticles in PB seem to depend on the immobilized MB+ amount and the percentage of the monomer, respectively. Considering the larger immobilized amount and percentage of the MB+ monomer, it was found that there was MH with the lower generation amount and efficiency of 1O2 to exhibit the highest PL intensity. The photofunctional measurement of MB+ revealed the state of MB+ molecules on the HA surface, and it was suggested that the MB+ molecules immobilized on the MH surface would form more hydrogen bonds to change their excitation states. In the cellular experiments, the Hela cancer cells reacted with the nanoparticles and showed red-color PL, indicating cellular imaging. Furthermore, the adherent cell coverage decreased by 1O2 generation, indicating the importance of the immobilization amount of the MB+ monomer. Therefore, theranostic nanomaterials with biosafety were successfully synthesized to show two photofunctions, which provide both cellular imaging and photodynamic therapy by the nanohybrid system between HA and MB+.
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Affiliation(s)
- Iori Yamada
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata940-2188, Japan.,Research Fellow of the Japan Society for the Promotion of Science (DC), 5-3-1 Koji-machi, Chiyoda-ku, Tokyo102-0083, Japan
| | - Takuya Kataoka
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata940-2188, Japan
| | - Ryota Ikeda
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata940-2188, Japan
| | - Motohiro Tagaya
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata940-2188, Japan
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26
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Chen H, Jia X, Fairweather M, Hunter TN. Characterising the sedimentation of bidisperse colloidal silica using analytical centrifugation. ADV POWDER TECHNOL 2023. [DOI: 10.1016/j.apt.2023.103950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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27
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Moriyama A, Ogura I, Fujita K. Potential issues specific to cytotoxicity tests of cellulose nanofibrils. J Appl Toxicol 2023; 43:195-207. [PMID: 36065078 PMCID: PMC10087788 DOI: 10.1002/jat.4390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/05/2022] [Accepted: 09/01/2022] [Indexed: 11/10/2022]
Abstract
Cellulose nanofibrils (also called cellulose nanofibers or nanofibrillated cellulose [CNFs]) are novel polymers derived from biomass with excellent physicochemical properties and various potential applications. However, the introduction of such new materials into the market requires thorough safety studies to be conducted. Recently, toxicity testing using cultured cells has attracted attention as a safety assessment that does not rely on experimental animals. This article reviews recent information regarding the cytotoxicity testing of CNFs and highlights the issues relevant to evaluating tests. In the literature, we found that a variety of cell lines and CNF exposure concentrations was evaluated. Furthermore, the results of cytotoxicity results tests differed and were not necessarily consistent. Numerous reports that we examined had not evaluated endotoxin/microbial contamination or the interaction of CNFs with the culture medium used in the tests. The following potential specific issues involved in CNF in vitro testing, were discussed: (1) endotoxin contamination, (2) microbial contamination, (3) adsorption of culture medium components to CNFs, and (4) changes in aggregation/agglomeration and dispersion states of CNFs resulting from culture medium components. In this review, the available measurement methods and solutions for these issues are also discussed. Addressing these points will lead to a better understanding of the cellular effects of CNFs and the development of safer CNFs.
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Affiliation(s)
- Akihiro Moriyama
- Research Institute of Science and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Isamu Ogura
- Research Institute of Science and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Katsuhide Fujita
- Research Institute of Science and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
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28
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Öcal N, Ceylan A, Duman F. Eco-Friendly Intracellular Biosynthesis of CdS Quantum Dots Using Pseudomonas aeruginosa: Evaluation of Antimicrobial Effects and DNA Cleavage Activities. RECENT PATENTS ON NANOTECHNOLOGY 2023; 17:59-67. [PMID: 34825647 DOI: 10.2174/1872210515666210719122353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/23/2021] [Accepted: 06/04/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Intracellular biosynthesis of Quantum Dots (QDs) based on microorganisms offers a green alternative and eco-friendly for the production of nanocrystals with superior properties. This study focused on the production of intracellular CdS QDs by stimulating the detoxification metabolism of Pseudomonas aeruginosa. METHODS For this aim, Pseudomonas aeruginosa ATCC 27853 strain was incubated in a solution of 1mM cadmium sulphate (CdSO4) to manipulate the detoxification mechanism. The intracellularly formed Cd-based material was extracted, and its characterization was carried out by Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD), Energy Dispersive X-ray (EDX) and dynamic light scattering (DLS) analyses and absorption-emission spectra. RESULTS The obtained material showed absorption peaks at 385 nm and a luminescence peak at 411 nm, and the particle sizes were measured in the range 4.63-17.54 nm. It was determined that the material was sphere-shaped, with a cubic crystalline structure, including Cd and S elements. The antibacterial and antifungal activities of CdS QDs against patent eleven bacterial (four Grampositive and seven Gram-negative) and one fungal strains were investigated by the agar disk diffusion method. It was revealed that the obtained material has antibacterial effects on both Grampositive and Gram-negative bacteria. However, cleavage activity of CdS QDs on pBR322 DNA was not detected. CONCLUSION As a result, it has been proposed that the stimulation of the detoxification mechanism can be an easy and effective way of producing green and cheap luminescent QDs or nanomaterial.
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Affiliation(s)
- Necip Öcal
- Department of Biology, Faculty of Science, Erciyes University, 38280, Kayseri, Turkey
| | - Ahmet Ceylan
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Erciyes University, 38280, Kayseri, Turkey
| | - Fatih Duman
- Department of Biology, Faculty of Science, Erciyes University, 38280, Kayseri, Turkey
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29
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Costinas C, Salagean CA, Cotet LC, Baia M, Todea M, Magyari K, Baia L. Insights into the Stability of Graphene Oxide Aqueous Dispersions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4489. [PMID: 36558342 PMCID: PMC9785193 DOI: 10.3390/nano12244489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/06/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Understanding graphene oxide's stability (or lack thereof) in liquid solvents is critical for fine-tuning the material's characteristics and its potential involvement in future applications. In this work, through the use of structural and surface investigations, the alteration of the structural and edge-surface properties of 2D graphene oxide nanosheets was monitored over a period of eight weeks by involving DLS, zeta potential, XRD, XPS, Raman and FT-IR spectroscopy techniques. The samples were synthesized as an aqueous suspension by an original modified Marcano-Tour method centred on the sono-chemical exfoliation of graphite. Based on the acquired experimental results and the available literature, a phenomenological explanation of the two underlying mechanisms responsible for the meta-stability of graphene oxide aqueous dispersions is proposed. It is based on the cleavage of the carbon bonds in the first 3-4 weeks, while the bonding of oxygen functional groups on the carbon lattice occurs, and the transformation of epoxide and hydroxyl groups into adsorbed water molecules in a process driven by the availability of hydrogen in graphene oxide nanosheets.
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Affiliation(s)
- Codrut Costinas
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
| | - Catalin Alexandru Salagean
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
| | - Liviu Cosmin Cotet
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
- Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Arany Janos 11, RO-400028 Cluj-Napoca, Romania
| | - Monica Baia
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
| | - Milica Todea
- Nanostructured Materials and Bio-Nano-Interfaces Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania
- Faculty of Medicine, Iuliu Hațieganu University of Medicine and Pharmacy, Victor Babeș 8, RO-400012 Cluj-Napoca, Romania
| | - Klara Magyari
- Nanostructured Materials and Bio-Nano-Interfaces Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. Sqr. 1, 6720 Szeged, Hungary
| | - Lucian Baia
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
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30
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Robocasting of dense 8Y zirconia parts: rheology, printing, and mechanical properties. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.11.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Hussen BM, Faraj GSH, Rasul MF, Hidayat HJ, Salihi A, Baniahmad A, Taheri M, Ghafouri-Frad S. Strategies to overcome the main challenges of the use of exosomes as drug carrier for cancer therapy. Cancer Cell Int 2022; 22:323. [PMID: 36258195 PMCID: PMC9580186 DOI: 10.1186/s12935-022-02743-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/05/2022] [Indexed: 11/10/2022] Open
Abstract
Exosomes are naturally occurring nanosized particles that aid intercellular communication by transmitting biological information between cells. Exosomes have therapeutic efficacy that can transfer their contents between cells as natural carriers. In addition, the exosomal contents delivered to the recipient pathological cells significantly inhibit cancer progression. However, exosome-based tumor treatments are inadequately precise or successful, and various challenges should be adequately overcome. Here, we discuss the significant challenges that exosomes face as drug carriers used for therapeutic targets and strategies for overcoming these challenges in order to promote this new incoming drug carrier further and improve future clinical outcomes. We also present techniques for overcoming these challenges.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq.,Center of Research and Strategic Studies, Lebanese French University, Erbil, Iraq
| | - Goran Sedeeq Hama Faraj
- College of Medicine, Department of Medical Laboratory Sciences, Komar University of Science and Technology, Sulaymaniyah, Iraq
| | - Mohammad Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | - Hazha Jamal Hidayat
- Department of Biology, College of Education, Salahaddin University, Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University, Erbil, Kurdistan Region, Iraq
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany. .,Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Soudeh Ghafouri-Frad
- Department of Medical Genetics,, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Ejjigu N, Abdelgadir K, Flaten Z, Hoff C, Li CZ, Sun D. Environmental noise reduction for tunable resistive pulse sensing of extracellular vesicles. SENSORS AND ACTUATORS. A, PHYSICAL 2022; 346:113832. [PMID: 37273787 PMCID: PMC10237153 DOI: 10.1016/j.sna.2022.113832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Extracellular vesicles (EVs) bearing biomolecules from parental cells can represent a novel source of disease biomarkers and are under intensive study for their clinical potential. Tunable resistive pulse sensing (TRPS) quantifies the magnitude of a small ionic resistive pulse current to determine the size, concentration, and zeta potential of EVs. Environmental noise is a common limiting factor that affects the precision of sensing devices. TRPS is particularly vulnerable to environmental noise, including both mechanical and electrical. The upper detection limit of the TRPS relies on the physical size of the elastomeric tunable nanopore. The lower limit relies on the electrical signal-to-noise ratio. Guided by simulation, we designed an external device to suppress environmental noise for TRPS measurement. Both mechanical and electrical environmental noise reductions were observed after using the shield. The study also validated the noise reduction function of the shield by quantifying EVs from different cell origins. Detection of EVs smaller than 200 nm was improved by using the shield; which was reported challenging for conventional quantification methods. The study highlighted a feasible approach to solve environmental noise challenges for TRPS based EV quantification.
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Affiliation(s)
- Nega Ejjigu
- Biomedical Engineering Program, North Dakota State University, Engineering Administration, Room 203, 1401 Centennial Blvd, Fargo, ND 58102, USA
| | - Khalid Abdelgadir
- Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101 S, Fargo, ND 58102, USA
| | - Zachariah Flaten
- Biomedical Engineering Program, North Dakota State University, Engineering Administration, Room 203, 1401 Centennial Blvd, Fargo, ND 58102, USA
| | - Cameron Hoff
- Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101 S, Fargo, ND 58102, USA
| | - Chen-Zhong Li
- Center for Cellular and Molecular Diagnostics, Department of Biochemistry and Molecular Biology, Department of Biomedical Engineering, Tulane University, LA 70112, USA
| | - Dali Sun
- Biomedical Engineering Program, North Dakota State University, Engineering Administration, Room 203, 1401 Centennial Blvd, Fargo, ND 58102, USA
- Department of Electrical and Computer Engineering, North Dakota State University, 1411 Centennial Blvd., 101 S, Fargo, ND 58102, USA
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33
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Assessment of crystallite size of UV-synthesized hydroxyapatite using different model equations. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02501-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Nissen M, Förster R, Wieduwilt T, Lorenz A, Jiang S, Hauswald W, Schmidt MA. Nanoparticle Tracking in Single-Antiresonant-Element Fiber for High-Precision Size Distribution Analysis of Mono- and Polydisperse Samples. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202024. [PMID: 35988130 DOI: 10.1002/smll.202202024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Accurate determination of the size distribution of nanoparticle ensembles remains a challenge in nanotechnology-related applications due to the limitations of established methods. Here, a microstructured fiber-assisted nanoparticle tracking analysis (FaNTA) realization is introduced that breaks existing limitations through the recording of exceptionally long trajectories of rapidly diffusing polydisperse nanoparticles, resulting in excellent sizing precision and unprecedented separation capabilities of bimodal nanoparticle mixtures. An effective-single-mode antiresonant-element fiber allows to efficiently confine nanoparticles in a light-guiding microchannel and individually track them over more than 1000 frames, while aberration-free imaging is experimentally confirmed by cross-correlation analysis. Unique features of the approach are (i) the highly precise determination of the size distribution of monodisperse nanoparticle ensembles (only 7% coefficient of variation) and (ii) the accurate characterization of individual components in a bimodal mixture with very close mean diameters, both experimentally demonstrated for polymer nanospheres. The outstanding performance of the FaNTA realization can be quantified by introducing a new model for the bimodal separation index. Since FaNTA is applicable to all types of nano-objects down to sub-20 nm diameters, the method will improve the precision standard of mono- and polydisperse nanoparticle samples such as nano-plastics or extracellular vesicles.
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Affiliation(s)
- Mona Nissen
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
- Abbe Center of Photonics and Faculty of Physics, Friedrich Schiller University Jena, Max-Wien-Platz 1, 07743, Jena, Germany
| | - Ronny Förster
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
| | - Torsten Wieduwilt
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
| | - Adrian Lorenz
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
| | - Shiqi Jiang
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
- Abbe Center of Photonics and Faculty of Physics, Friedrich Schiller University Jena, Max-Wien-Platz 1, 07743, Jena, Germany
| | - Walter Hauswald
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
| | - Markus A Schmidt
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
- Abbe Center of Photonics and Faculty of Physics, Friedrich Schiller University Jena, Max-Wien-Platz 1, 07743, Jena, Germany
- Otto Schott Institute of Material Research, Friedrich Schiller University Jena, Fraunhoferstr. 6, 07743, Jena, Germany
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Visan KS, Lobb RJ, Ham S, Lima LG, Palma C, Edna CPZ, Wu L, Gowda H, Datta KK, Hartel G, Salomon C, Möller A. Comparative analysis of tangential flow filtration and ultracentrifugation, both combined with subsequent size exclusion chromatography, for the isolation of small extracellular vesicles. J Extracell Vesicles 2022; 11:e12266. [PMID: 36124834 PMCID: PMC9486818 DOI: 10.1002/jev2.12266] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/15/2022] [Accepted: 09/05/2022] [Indexed: 11/07/2022] Open
Abstract
Small extracellular vesicles (sEVs) provide major promise for advances in cancer diagnostics, prognostics, and therapeutics, ascribed to their distinctive cargo reflective of pathophysiological status, active involvement in intercellular communication, as well as their ubiquity and stability in bodily fluids. As a result, the field of sEV research has expanded exponentially. Nevertheless, there is a lack of standardisation in methods for sEV isolation from cells grown in serum-containing media. The majority of researchers use serum-containing media for sEV harvest and employ ultracentrifugation as the primary isolation method. Ultracentrifugation is inefficient as it is devoid of the capacity to isolate high sEV yields without contamination of non-sEV materials or disruption of sEV integrity. We comprehensively evaluated a protocol using tangential flow filtration and size exclusion chromatography to isolate sEVs from a variety of human and murine cancer cell lines, including HeLa, MDA-MB-231, EO771 and B16F10. We directly compared the performance of traditional ultracentrifugation and tangential flow filtration methods, that had undergone further purification by size exclusion chromatography, in their capacity to separate sEVs, and rigorously characterised sEV properties using multiple quantification devices, protein analyses and both image and nano-flow cytometry. Ultracentrifugation and tangential flow filtration both enrich consistent sEV populations, with similar size distributions of particles ranging up to 200 nm. However, tangential flow filtration exceeds ultracentrifugation in isolating significantly higher yields of sEVs, making it more suitable for large-scale research applications. Our results demonstrate that tangential flow filtration is a reliable and robust sEV isolation approach that surpasses ultracentrifugation in yield, reproducibility, time, costs and scalability. These advantages allow for implementation in comprehensive research applications and downstream investigations.
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Affiliation(s)
- Kekoolani S. Visan
- Tumour Microenvironment LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
| | - Richard J. Lobb
- Tumour Microenvironment LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
- Centre for Personalized NanomedicineAustralian Institute for Bioengineering and Nanotechnology (AIBN)The University of QueenslandBrisbaneQLDAustralia
| | - Sunyoung Ham
- Tumour Microenvironment LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
| | - Luize G. Lima
- Tumour Microenvironment LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
| | - Carlos Palma
- Exosome Biology LaboratoryFaculty of Medicine and Biomedical SciencesCentre for Clinical DiagnosticsUniversity of Queensland Centre for Clinical ResearchRoyal Brisbane and Women's HospitalThe University of QueenslandBrisbaneQLDAustralia
| | - Chai Pei Zhi Edna
- Tumour Microenvironment LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
| | - Li‐Ying Wu
- Tumour Microenvironment LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
- School of Biomedical Sciences, Faculty of HealthQueensland University of TechnologyBrisbaneQLD4059Australia
| | - Harsha Gowda
- Cancer Precision Medicine LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
| | - Keshava K. Datta
- Cancer Precision Medicine LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
- Proteomics and Metabolomics PlatformLa Trobe UniversityBundooraVICAustralia
| | - Gunter Hartel
- Statistics UnitQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
| | - Carlos Salomon
- Exosome Biology LaboratoryFaculty of Medicine and Biomedical SciencesCentre for Clinical DiagnosticsUniversity of Queensland Centre for Clinical ResearchRoyal Brisbane and Women's HospitalThe University of QueenslandBrisbaneQLDAustralia
- Departamento de InvestigaciónPostgrado y Educación Continua (DIPEC)Facultad de Ciencias de la SaludUniversidad del AlbaSantiagoChile
| | - Andreas Möller
- Tumour Microenvironment LaboratoryQIMR Berghofer Medical Research InstituteHerstonQLDAustralia
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36
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Sazalee SNF, Ruslan NAAA, Nordin N, Azmi WA, Suk VRE, Misran M, Yong TS, Teik KK, Chia PW. Synthesis of N-acyl glycine surfactant from palm oil as green repellent and toxicant to termite (Microcerotermes diversus). AN ACAD BRAS CIENC 2022; 94:e20201601. [PMID: 35920484 DOI: 10.1590/0001-3765202220201601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 09/02/2021] [Indexed: 11/22/2022] Open
Abstract
This study described for the first time, the synthesis of a greener, safer, and more effective termiticide using a bio-based surfactant, N-acyl glycine derived from palm oil for the control of Microcerotermes diversus. Laboratory findings showed that the highest repellent activity was observed in N-acyl glycine surfactant (83.33%) at 50 ppm. In addition, N-acyl glycine surfactant also exhibited substantial time and concentration-dependent anti-termiticidal activity in which the highest termite mortality was observed after 3 days of exposure at 50 ppm of the surfactant (100%). Furthermore, 32.49 ppm concentration of N-acyl glycine surfactant (LC50 = 32.49 ppm) attained 50% of termite lethality. The current innovated termiticide with the use of N-acyl glycine surfactant offers a better efficacy, lower cost, and prevents the use of dangerous termiticides that are critical in creating a more sustainable environment, and controls Microcerotermes diversus at the same time.
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Affiliation(s)
- Syamimi N F Sazalee
- Universiti Malaysia Terengganu, Faculty of Science and Marine Environment, Eco-Innovation Research Interest Group, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Nur A A A Ruslan
- Universiti Malaysia Terengganu, Faculty of Science and Marine Environment, Eco-Innovation Research Interest Group, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Nurhamizah Nordin
- Universiti Malaysia Terengganu, Faculty of Science and Marine Environment, Eco-Innovation Research Interest Group, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Wahizatul A Azmi
- Universiti Malaysia Terengganu, Faculty of Science and Marine Environment, Eco-Innovation Research Interest Group, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Vicit R E Suk
- Research & Development Centre, KL-Kepong Oleomas Sdn. Bhd., Lot 1 & 2, Solok Waja 3, Bukit Raja Industrial Estate, PO Box 83, 41710 Klang, Selangor, Malaysia
| | - Misni Misran
- Research & Development Centre, KL-Kepong Oleomas Sdn. Bhd., Lot 1 & 2, Solok Waja 3, Bukit Raja Industrial Estate, PO Box 83, 41710 Klang, Selangor, Malaysia
| | - Tan S Yong
- Universiti Malaysia Terengganu, Institute of Marine Biotechnology, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Koay K Teik
- Universiti Malaysia Terengganu, Institute of Marine Biotechnology, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Poh W Chia
- Universiti Malaysia Terengganu, Faculty of Science and Marine Environment, Eco-Innovation Research Interest Group, 21030 Kuala Nerus, Terengganu, Malaysia.,Universiti Malaysia Terengganu, Institute of Marine Biotechnology, 21030 Kuala Nerus, Terengganu, Malaysia
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37
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Rust S, Pauer W. Determination of inline-particle sizes by turbidity measurement in high solid content emulsion polymerisations. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03141-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractParticle size determination in optically dense systems requires costly techniques or dilution of collected samples. Against this background, turbidimetry was investigated as a potentially robust as well as inexpensive alternative. Emulsion copolymerisations of vinyl acetate and VeoVa10® with solid contents up to 48 wt% were examined time resolved with respect to mean particle size at different temperatures, solid contents and with different co-monomer ratios and emulsifier concentrations. The mean hydrodynamic diameters were validated by dynamic light scattering (DLS). Precise number mean hydrodynamic diameters in the range from 100 to 250 nm were obtained in-line for polyvinyl acetate dispersions with deviations in particle sizes below ± 5%. In addition, the turbidity values were recorded by means of a nephelometry process probe and thus a robust, system-related calibration was created, which was subsequently able to reliably track the number mean hydrodynamic diameter inline time-resolved.
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38
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Kato Y, Morimoto T, Kobashi K, Yamaguchi T, Mori T, Sugino T, Okazaki T. Porosity and size analysis of porous microparticles by centrifugal sedimentation with and without density gradient. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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39
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Xiong Y, Zhang X, Hu L. A method for tracking the Brownian motion to estimate the size distribution of submicron particles in seawater. LIMNOLOGY AND OCEANOGRAPHY, METHODS 2022; 20:373-386. [PMID: 36246548 PMCID: PMC9543390 DOI: 10.1002/lom3.10494] [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: 08/31/2021] [Revised: 01/13/2022] [Accepted: 05/04/2022] [Indexed: 06/16/2023]
Abstract
Because the diffusivity of particles undergoing the Brownian motion is inversely proportional to their sizes, the size distribution of submicron particles can be estimated by tracking their movement. This particle tracking analysis (PTA) has been applied in various fields, but mainly focused on resolving monodispersed particle populations and is rarely used for measuring oceanic particles that are naturally polydispersed. We demonstrated using Monte Carlo simulation that, in principle, PTA can be used to size natural, oceanic particles. We conducted a series of lab experiments using microbeads of NIST-traceable sizes to evaluate the performance of ViewSizer 3000, a PTA-based commercial instrument, and found two major uncertainties: (1) the sample volume varies with the size of particles and (2) the signal-to-noise ratio for particles of sizes < 200-250 nm was reduced and hence their concentration was underestimated with the presence of larger particles. After applying the volume correction, we found the instrument can resolve oceanic submicron particles of sizes greater than 250 nm with a mean absolute error of 3.9% in size and 38% in concentration.
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Affiliation(s)
- Yuanheng Xiong
- Department of Earth System Science and PolicyUniversity of North DakotaGrand ForksNorth DakotaUSA
| | - Xiaodong Zhang
- Division of Marine ScienceSchool of Ocean Science and Engineering, The University of Southern Mississippi, Stennis Space CenterMississippiUSA
| | - Lianbo Hu
- Ocean Remote Sensing InstituteOcean University of ChinaQingdaoChina
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40
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Chernyshev VS, Chuprov-Netochin RN, Tsydenzhapova E, Van Devener B, Leonov S, Gorin D, Skliar M. Dynamic surface tension probe for measuring the concentration of extracellular vesicles. Biochem Biophys Res Commun 2022; 609:189-194. [PMID: 35452960 DOI: 10.1016/j.bbrc.2022.04.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 04/06/2022] [Indexed: 11/02/2022]
Abstract
The concentration of extracellular vesicles (EVs) is an essential attribute of biofluids and EV preparations. EV concentration in body fluids was correlated with health status. The abundance of EV secreted by cultured cells into growth medium is vital in signaling studies, tissue and disease models, and biomanufacturing of acellular therapeutic secretome. A limited number of physical principles sensitive to EV concertation have been discovered so far. Particle-by-particle counting methods enumerate individual particles scattering light, modulating the Coulter current, or appearing in EM images. The available ensemble techniques in current use rely on the concentration-dependent signal intensity, as in the case of ELISA. In this study, we propose for the first-time the ensemble-based characterization of EV concentration by dynamic surface tension (DST) probe and demonstrate its implementation. We show that DST measurements agree with the widely used NTA measurements of EV concertation. The proposed method is low-cost and requires only basic laboratory equipment for implementation.
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Affiliation(s)
- Vasiliy S Chernyshev
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Building 3, Moscow, 143026, Russian Federation; School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutsky per. 9/7, Dolgoprudny, Moscow Region, 141700, Russian Federation.
| | - Roman N Chuprov-Netochin
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutsky per. 9/7, Dolgoprudny, Moscow Region, 141700, Russian Federation
| | - Ekaterina Tsydenzhapova
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutsky per. 9/7, Dolgoprudny, Moscow Region, 141700, Russian Federation
| | - Brian Van Devener
- Utah Nanofab, Nano-Scale Imaging and Surface Analysis Lab, University of Utah, 36 S. Wasatch Dr, Salt Lake City, UT, 84112, USA
| | - Sergey Leonov
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutsky per. 9/7, Dolgoprudny, Moscow Region, 141700, Russian Federation
| | - Dmitry Gorin
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Building 3, Moscow, 143026, Russian Federation
| | - Mikhail Skliar
- The Nano Institute of Utah, University of Utah, 36 S. Wasatch Dr, Salt Lake City, UT, 84112, USA; Department of Chemical Engineering, University of Utah, 50 S. Central Campus Dr, Salt Lake City, UT, 84112, USA
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41
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Nanoformulations with synthetic and plant-derived compounds for cattle tick control. Vet Parasitol 2022; 309:109756. [PMID: 35749843 DOI: 10.1016/j.vetpar.2022.109756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 05/30/2022] [Accepted: 06/09/2022] [Indexed: 11/20/2022]
Abstract
Nanocarriers of acaricidal compounds improve the bioavailability, absorption, and tissue distribution of active ingredients, releasing them in a slow, targeted way and protecting them against premature degradation. Thus, this study aimed to develop formulations from solid lipid nanoparticles (SLN), or nanostructured lipid carriers (NLC) associated with cypermethrin (cip) + chlorpyrifos (chlo) and vegetable compounds (citral, menthol, or limonene). Particles were then characterised, and their efficacy was verified on R. microplus in comparison to nanoformulations without the plant-based compounds. Six different formulations were developed and characterised by dynamic light scattering (DLS) and nanoparticle tracking analysis (NTA). Formulations 1 (SLN+cyp+chlo+citral), 2 (SLN+cyp+chlo+menthol), 3 (SLN+cyp+chlo+limonene), 4 (NLC+cyp+chlo+citral), 5 (NLC+cyp+chlo+menthol) and 6 (NLC+cyp+chlo+limonene) had mean diameters from 286 to 304 nm; polydispersion from 0.16 to 0.18; zeta potential from -15.8 to -20 mV, concentration from 3.37 ± 0.24 × 1013 to 5.44 ± 0.18 × 1013 particles/mL and encapsulation efficiency (EE) > 98.01 % for all active ingredients. All formulations were evaluated for their acaricidal potential by the larval packet test (LPT) and compared with nanoformulations without the plant-based compounds. Formulations were also compared with positive (Colosso® at 512 µg/mL) and negative controls (distilled water and nanoparticles without active ingredients). The SLN (1, 2 and 3) and NLC (4, 5 and 6) formulations, at 7 µg/mL, resulted in 90.4 % , 75.9 % , 93.8 % , 100 % , 95.1 % and 72.7 % mortality. The data demonstrated that the addition of citral, menthol or limonene in the formulations improved their acaricide action against tick larvae. Except for formulation 4, for which it was not possible to determine lethal concentrations (LC). Formulations, 1, 2, 3, 5 and 6 reached LC50 and LC90 values of 3.3 and 7.2, 5.4 and 9.2, 4.0 and 8.1, 2.3 and 5.4 as well as 5.5 and 9.4 µg/mL, respectively. It was possible to encapsulate the active ingredients and characterise the lipid carrier systems. SLN and NLC protected the active ingredients against degradation in solution and increased the overall stability. A stabile solution is necessary for synthesizing commercial acaricidal products. It is hoped that these findings may contribute to new studies focused on the use of nanocarriers in tick formulations. By reducing the amount or concentration of active ingredients within commercial products, the risk of residues presents in food of animal origin or remaining in the environment is reduced. Nanocarriers help prevent these challenges, while still maintaining effective parasitic control. Utilizing a combination of natural and synthetic products can be part of integrated management solutions and can help overcome widespread acaricide resistance in populations of cattle ticks.
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Unveiling the Native Morphology of Extracellular Vesicles from Human Cerebrospinal Fluid by Atomic Force and Cryogenic Electron Microscopy. Biomedicines 2022; 10:biomedicines10061251. [PMID: 35740275 PMCID: PMC9220600 DOI: 10.3390/biomedicines10061251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 12/10/2022] Open
Abstract
Extracellular vesicles (EVs) are membranous structures in biofluids with enormous diagnostic/prognostic potential for application in liquid biopsies. Any such downstream application requires a detailed characterization of EV concentration, size and morphology. This study aimed to observe the native morphology of EVs in human cerebrospinal fluid after traumatic brain injury. Therefore, they were separated by gravity-driven size-exclusion chromatography (SEC) and investigated by atomic force microscopy (AFM) in liquid and cryogenic transmission electron microscopy (cryo-TEM). The enrichment of EVs in early SEC fractions was confirmed by immunoblot for transmembrane proteins CD9 and CD81. These fractions were then pooled, and the concentration and particle size distribution were determined by Tunable Resistive Pulse Sensing (around 1010 particles/mL, mode 100 nm) and Nanoparticle Tracking Analysis (around 109 particles/mL, mode 150 nm). Liquid AFM and cryo-TEM investigations showed mode sizes of about 60 and 90 nm, respectively, and various morphology features. AFM revealed round, concave, multilobed EV structures; and cryo-TEM identified single, double and multi-membrane EVs. By combining AFM for the surface morphology investigation and cryo-TEM for internal structure differentiation, EV morphological subpopulations in cerebrospinal fluid could be identified. These subpopulations should be further investigated because they could have different biological functions.
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Takechi-Haraya Y, Ohgita T, Demizu Y, Saito H, Izutsu KI, Sakai-Kato K. Current Status and Challenges of Analytical Methods for Evaluation of Size and Surface Modification of Nanoparticle-Based Drug Formulations. AAPS PharmSciTech 2022; 23:150. [PMID: 35596094 PMCID: PMC9122548 DOI: 10.1208/s12249-022-02303-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/09/2022] [Indexed: 01/02/2023] Open
Abstract
The present review discusses the current status and difficulties of the analytical methods used to evaluate size and surface modifications of nanoparticle-based pharmaceutical products (NPs) such as liposomal drugs and new SARS-CoV-2 vaccines. We identified the challenges in the development of methods for (1) measurement of a wide range of solid-state NPs, (2) evaluation of the sizes of polydisperse NPs, and (3) measurement of non-spherical NPs. Although a few methods have been established to analyze surface modifications of NPs, the feasibility of their application to NPs is unknown. The present review also examined the trends in standardization required to validate the size and surface measurements of NPs. It was determined that there is a lack of available reference materials and it is difficult to select appropriate ones for modified NP surface characterization. Research and development are in progress on innovative surface-modified NP-based cancer and gene therapies targeting cells, tissues, and organs. Next-generation nanomedicine should compile studies on the practice and standardization of the measurement methods for NPs to design surface modifications and ensure the quality of NPs.
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Affiliation(s)
- Yuki Takechi-Haraya
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, 210-9501, Japan.
| | - Takashi Ohgita
- Department of Biophysical Chemistry, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, 210-9501, Japan
| | - Hiroyuki Saito
- Department of Biophysical Chemistry, Kyoto Pharmaceutical University, 5 Misasagi-Nakauchi-cho, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Ken-Ichi Izutsu
- Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, 210-9501, Japan
| | - Kumiko Sakai-Kato
- School of Pharmacy, Kitasato University, Shirokane 5-9-1, Minato-ku, Tokyo, 108-8641, Japan.
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Horiguchi Y, Naono N, Sakamoto O, Takeuchi H, Yamaoka S, Miyahara Y. Methodology to Detect Biological Particles Using a Biosensing Surface Integrated in Resistive Pulse Sensing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20168-20178. [PMID: 35446533 DOI: 10.1021/acsami.1c25006] [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: 06/14/2023]
Abstract
Resistive pulse sensing (RPS) is an analytical method that can be used to individually count particles from a small sample. RPS simply monitors the physical characteristics of particles, such as size, shape, and charge density, and the integration of RPS with biosensing is an attractive theme to detect biological particles such as virus and bacteria. In this report, a methodology of biosensing on RPS was investigated. Polydopamine (PD), an adhesive component of mussels, was used as the base material to create a sensing surface. PD adheres to most materials, such as noble metals, metal oxides, semiconductors, and polymers; as a result, PD is a versatile intermediate layer for the fabrication of a biosensing surface. As an example of a biological particle, human influenza A virus (H1N1 subtype) was used to monitor translocation of particles through the pore membrane. When virus-specific ligands (6'-sialyllactose) were immobilized on the pore surface, the translocation time of the virus particles was considerably extended. The detailed translocation data suggest that the viral particles were trapped on the sensing surface by specific interactions. In addition, virus translocation processes on different pore surfaces were distinguished using machine learning. The result shows that the simple and versatile PD-based biosensor surface design was effective. This advanced RPS measurement system could be a promising analytical technique.
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Affiliation(s)
- Yukichi Horiguchi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan
| | - Norihiko Naono
- Aipore Inc., Cerulean Tower 15F, 26-1 Sakuragaokacho, Shibuya, Tokyo 150-8512, Japan
| | - Osamu Sakamoto
- Aipore Inc., Cerulean Tower 15F, 26-1 Sakuragaokacho, Shibuya, Tokyo 150-8512, Japan
| | - Hiroaki Takeuchi
- Department of Molecular Virology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo, Tokyo 113-8510, Japan
| | - Shoji Yamaoka
- Department of Molecular Virology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo, Tokyo 113-8510, Japan
| | - Yuji Miyahara
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan
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45
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Li G, Kujawski W, Tonkonogovas A, Knozowska K, Kujawa J, Olewnik-Kruszkowska E, Pedišius N, Stankevičius A. Evaluation of CO2 separation performance with enhanced features of materials - Pebax® 2533 mixed matrix membranes containing ZIF-8-PEI@[P(3)HIm][Tf2N]. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.03.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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46
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Berger S, Berger M, Bantz C, Maskos M, Wagner E. Performance of nanoparticles for biomedical applications: The in vitro/ in vivo discrepancy. BIOPHYSICS REVIEWS 2022; 3:011303. [PMID: 38505225 PMCID: PMC10903387 DOI: 10.1063/5.0073494] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/04/2022] [Indexed: 03/21/2024]
Abstract
Nanomedicine has a great potential to revolutionize the therapeutic landscape. However, up-to-date results obtained from in vitro experiments predict the in vivo performance of nanoparticles weakly or not at all. There is a need for in vitro experiments that better resemble the in vivo reality. As a result, animal experiments can be reduced, and potent in vivo candidates will not be missed. It is important to gain a deeper knowledge about nanoparticle characteristics in physiological environment. In this context, the protein corona plays a crucial role. Its formation process including driving forces, kinetics, and influencing factors has to be explored in more detail. There exist different methods for the investigation of the protein corona and its impact on physico-chemical and biological properties of nanoparticles, which are compiled and critically reflected in this review article. The obtained information about the protein corona can be exploited to optimize nanoparticles for in vivo application. Still the translation from in vitro to in vivo remains challenging. Functional in vitro screening under physiological conditions such as in full serum, in 3D multicellular spheroids/organoids, or under flow conditions is recommended. Innovative in vivo screening using barcoded nanoparticles can simultaneously test more than hundred samples regarding biodistribution and functional delivery within a single mouse.
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Affiliation(s)
- Simone Berger
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig–Maximilians-Universität (LMU) Munich, Butenandtstr. 5-13, D-81377 Munich, Germany
| | - Martin Berger
- Department of Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Christoph Bantz
- Fraunhofer Institute for Microengineering and Microsystems IMM, Carl-Zeiss-Str. 18-20, D-55129 Mainz, Germany
| | | | - Ernst Wagner
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig–Maximilians-Universität (LMU) Munich, Butenandtstr. 5-13, D-81377 Munich, Germany
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47
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Benkstein KD, Balakrishnan G, Bhirde A, Chalus P, Das TK, Do N, Duewer DL, Filonov N, Cheong FC, Garidel P, Gill NS, Grabarek AD, Grier DG, Hadley J, Hollingsworth AD, Howard WW, Jarzębski M, Jiskoot W, Kar SR, Kestens V, Khasa H, Kim YJ, Koulov A, Matter A, Philips LA, Probst C, Ramaye Y, Randolph TW, Ripple DC, Romeijn S, Saggu M, Schleinzer F, Snell JR, Tatarkiewicz J“K, Wright HA, Yang D. An Interlaboratory Comparison on the Characterization of a Sub-micrometer Polydisperse Particle Dispersion. J Pharm Sci 2022; 111:699-709. [PMID: 34808214 PMCID: PMC9912188 DOI: 10.1016/j.xphs.2021.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 10/19/2022]
Abstract
The measurement of polydisperse protein aggregates and particles in biotherapeutics remains a challenge, especially for particles with diameters of ≈ 1 µm and below (sub-micrometer). This paper describes an interlaboratory comparison with the goal of assessing the measurement variability for the characterization of a sub-micrometer polydisperse particle dispersion composed of five sub-populations of poly(methyl methacrylate) (PMMA) and silica beads. The study included 20 participating laboratories from industry, academia, and government, and a variety of state-of-the-art particle-counting instruments. The received datasets were organized by instrument class to enable comparison of intralaboratory and interlaboratory performance. The main findings included high variability between datasets from different laboratories, with coefficients of variation from 13 % to 189 %. Intralaboratory variability was, on average, 37 % of the interlaboratory variability for an instrument class and particle sub-population. Drop-offs at either end of the size range and poor agreement on maximum counts of particle sub-populations were noted. The mean distributions from an instrument class, however, showed the size-coverage range for that class. The study shows that a polydisperse sample can be used to assess performance capabilities of an instrument set-up (including hardware, software, and user settings) and provides guidance for the development of polydisperse reference materials.
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Affiliation(s)
- Kurt D. Benkstein
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Gurusamy Balakrishnan
- Analytical Development and Attribute Science, Bristol Myers Squibb, New Brunswick, NJ 08901, USA
| | - Ashwinkumar Bhirde
- Office of Biotechnology Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993, USA
| | - Pascal Chalus
- Lonza AG, Drug Product Services, Hochbergerstrasse 60G, CH-4057 Basel, Switzerland
| | - Tapan K. Das
- Biologics Development, Bristol Myers Squibb, New Brunswick, NJ 08903, USA
| | - Ngoc Do
- Spectradyne LLC, 23875 Madison St Suite A, Torrance CA 90505, USA
| | - David L. Duewer
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Nazar Filonov
- AlphaNanoTech, Morrisville, NC 27709, USA,Particle Metrix, Inc., Mebane, NC 27302, USA
| | | | - Patrick Garidel
- Boehringer Ingelheim Pharma GmbH & Co. KG, Innovation Unit, PDB, D-88397-Biberach an der Riss, Germany
| | - Nicole S. Gill
- Yokogawa Fluid Imaging Technologies, Inc. Scarborough, ME 04074, USA
| | - Adam D. Grabarek
- Coriolis Pharma, Fraunhoferstrasse 18 b, 82152 Martinsried, Germany,Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, The Netherlands
| | - David G. Grier
- Department of Physics and Center for Soft Matter Research, New York University, New York, NY 10003, USA
| | - Judith Hadley
- Malvern Pananalytical, 117 Flanders Road Westborough, MA 01581, USA
| | - Andrew D. Hollingsworth
- Department of Physics and Center for Soft Matter Research, New York University, New York, NY 10003, USA
| | - Wesley W. Howard
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, USA
| | - Maciej Jarzębski
- Department of Physics and Biophysics, Faculty of Food Science and Nutrition, Poznan University of Life Sciences, Poznań, Poland
| | - Wim Jiskoot
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | | | - Vikram Kestens
- European Commission, Joint Research Centre (JRC), Geel, Belgium
| | - Harshit Khasa
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, USA
| | - Yoen Joo Kim
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Gaithersburg, USA
| | - Atanas Koulov
- Lonza AG, Drug Product Services, Hochbergerstrasse 60G, CH-4057 Basel, Switzerland
| | - Anja Matter
- Lonza AG, Drug Product Services, Hochbergerstrasse 60G, CH-4057 Basel, Switzerland
| | | | | | - Yannic Ramaye
- European Commission, Joint Research Centre (JRC), Geel, Belgium
| | - Theodore W. Randolph
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Boulder, CO 80309
| | - Dean C. Ripple
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Stefan Romeijn
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Miguel Saggu
- Pharmaceutical Development, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Franziska Schleinzer
- Boehringer Ingelheim Pharma GmbH & Co. KG, Innovation Unit, PDB, D-88397-Biberach an der Riss, Germany
| | | | | | | | - Dennis Yang
- Biopharmaceutical Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
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48
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DiStefano TJ, Vaso K, Danias G, Chionuma HN, Weiser JR, Iatridis JC. Extracellular Vesicles as an Emerging Treatment Option for Intervertebral Disc Degeneration: Therapeutic Potential, Translational Pathways, and Regulatory Considerations. Adv Healthc Mater 2022; 11:e2100596. [PMID: 34297485 PMCID: PMC8783929 DOI: 10.1002/adhm.202100596] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/08/2021] [Indexed: 12/14/2022]
Abstract
Emergent approaches in regenerative medicine look toward the use of extracellular vesicles (EVs) as a next-generation treatment strategy for intervertebral disc (IVD) degeneration (IVDD) because of their ability to attenuate chronic inflammation, reduce apoptosis, and stimulate proliferation in a number of tissue systems. Yet, there are no Food and Drug Administration (FDA)-approved EV therapeutics in the market with an indication for IVDD, which motivates this article to review the current state of the field and provide an IVD-specific framework to assess its efficacy. In this systematic review, 29 preclinical studies that investigate EVs in relation to the IVD are identified, and additionally, the regulatory approval process is reviewed in an effort to accelerate emerging EV-based therapeutics toward FDA submission and timeline-to-market. The majority of studies focus on nucleus pulposus responses to EV treatment, where the main findings show that stem cell-derived EVs can decelerate the progression of IVDD on the molecular, cellular, and organ level. The findings also highlight the importance of the EV parent cell's pathophysiological and differentiation state, which affects downstream treatment responses and therapeutic outcomes. This systematic review substantiates the use of EVs as a promising cell-free strategy to treat IVDD and enhance endogenous repair.
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Affiliation(s)
- Tyler J. DiStefano
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York NY, USA
| | - Keti Vaso
- Department of Chemical Engineering, The Cooper Union for the Advancement of Science and Art, New York NY, USA
| | - George Danias
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York NY, USA
| | - Henry N. Chionuma
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York NY, USA
| | - Jennifer R. Weiser
- Department of Chemical Engineering, The Cooper Union for the Advancement of Science and Art, New York NY, USA
| | - James C. Iatridis
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York NY, USA
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49
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A review of optical methods for ultrasensitive detection and characterization of nanoparticles in liquid media with a focus on the wide field surface plasmon microscopy. Anal Chim Acta 2022; 1204:339633. [DOI: 10.1016/j.aca.2022.339633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 12/27/2022]
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50
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Wichmann N, Lund PM, Hansen MB, Hjørringgaard CU, Larsen JB, Kristensen K, Andresen TL, Simonsen JB. Applying flow cytometry to identify the modes of action of membrane-active peptides in a label-free and high-throughput fashion. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2022; 1864:183820. [PMID: 34813768 DOI: 10.1016/j.bbamem.2021.183820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/29/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Membrane-active peptides (MAPs) have several potential therapeutic uses, including as antimicrobial drugs. Many traditional methods used to evaluate the membrane interactions of MAPs have limited applicability. Low-throughput methods, such as microscopy, provide detailed information but often rely on fluorophore-labeled MAPs, and high-throughput assays, such as the calcein release assay, cannot assess the mechanism behind the disruption of vesicular-based lipid membranes. Here we present a flow cytometric assay that provides detailed information about the peptide-lipid membrane interactions on single artificial lipid vesicles while being high-throughput (1000-2000 vesicles/s) and based on label-free MAPs. We synthesized and investigated six MAPs with different modes of action to evaluate the versatility of the assay. The assay is based on the flow cytometric readouts from artificial lipid vesicles, including the fluorescence from membrane-anchored and core-encapsulated fluorophores, and the vesicle concentration. From these parameters, we were able to distinguish between MAPs that induce vesicle solubilization, permeation (pores/membrane distortion), and aggregation or fusion. Our flow cytometry findings have been verified by traditional methods, including the calcein release assay, dynamic light scattering, and fluorescence microscopy on giant unilamellar vesicles. We envision that the presented flow cytometric assay can be used for various types of peptide-lipid membrane studies, e.g. to identify new antibiotics. Moreover, the assay can easily be expanded to derive additional valuable information.
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Affiliation(s)
- Nanna Wichmann
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Philip M Lund
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Morten B Hansen
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Claudia U Hjørringgaard
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Jannik B Larsen
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Kasper Kristensen
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Thomas L Andresen
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
| | - Jens B Simonsen
- Department of Health Technology, Center for Intestinal Absorption and Transport of Biopharmaceuticals, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
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