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Kim G, Seo M, Xu J, Park J, Gim S, Chun H. Large-Area Silicon Nitride Nanosieve for Enhanced Diffusion-Based Exosome Isolation. SMALL METHODS 2024:e2301624. [PMID: 38801014 DOI: 10.1002/smtd.202301624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/10/2024] [Indexed: 05/29/2024]
Abstract
Nanoporous membranes have a variety of applications, one of which is the size-selective separation of nanoparticles. In drug delivery, nanoporous membranes are becoming increasingly important for the isolation of exosomes, which are bio-nanoparticles. However, the low pore density and thickness of commercial membranes limit their efficiency. There have been many attempts to fabricate sub-micrometer thin membranes, but the limited surface area has restricted their practicality. In this study, large-area silicon nitride nanosieves for enhanced diffusion-based isolation of exosomes are presented. Notably, these nanosieves are scaled to sizes of up to 4-inch-wafers, a significant achievement in overcoming the fabrication challenges associated with such expansive areas. The method employs a 200 nm porous sieve (38.2% porosity) for exosome separation and a 50 nm sieve (10.7% porosity) for soluble protein removal. These 300 nm thick nanosieves outperform conventional polycarbonate membranes by being 50 times thinner, thereby increasing nanoparticle permeability. The method enables a 90% recovery rate of intact exosomes from human serum and a purity ratio of 3 × 107 particles/µg protein, 4.6 times higher than ultracentrifugation methods. The throughput of the method is up to 15 mL by increasing the size of the nanosieve, making it an ideal solution for large-scale exosome production for therapeutic purposes.
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Affiliation(s)
- Gijung Kim
- Department of Biomedical Engineering, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
| | - Mingyu Seo
- Department of Biomedical Engineering, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
| | - Jiaxin Xu
- Department of Biomedical Engineering, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
| | - Jinhyeok Park
- Department of Biomedical Engineering, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
| | - Sangjun Gim
- Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Honggu Chun
- Department of Biomedical Engineering, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, 466 Hana Science Hall, Seoul, 02841, Republic of Korea
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Chen M, Li J, Lin Y, Li X, Yu Y, Zhou S, Xu F, Zhang Q, Zhang H, Wang W. Recent research on material-based methods for isolation of extracellular vesicles. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3179-3191. [PMID: 38738644 DOI: 10.1039/d4ay00370e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Extracellular vesicles (EVs) are nanoparticles secreted by cells with a closed phospholipid bilayer structure, which can participate in various physiological and pathological processes and have significant clinical value in disease diagnosis, targeted therapy and prognosis assessment. EV isolation methods currently include differential ultracentrifugation, ultrafiltration, size exclusion chromatography, immunoaffinity, polymer co-precipitation and microfluidics. In addition, material-based biochemical or biophysical approaches relying on intrinsic properties of the material or its surface-modified functionalized monomers, demonstrated unique advantages in the efficient isolation of EVs. In order to provide new ideas for the subsequent development of material-based EV isolation methods, this review will focus on the principle, research status and application prospects of material-based EV isolation methods based on different material carriers and functional monomers.
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Affiliation(s)
- Mengxi Chen
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Jiaxi Li
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Yujie Lin
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Xiaowei Li
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai 264005, PR China
| | - Yuanyuan Yu
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Shenyue Zhou
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Fang Xu
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Qi Zhang
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Haiyang Zhang
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
| | - Weipeng Wang
- College of Pharmaceutical Sciences, Soochow University, Yunxuan Building #1339 and #2103, Wenjing Road, Suzhou Industrial Park, Suzhou 215123, China.
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Lai JJ, Hill JJ, Huang CY, Lee GC, Mai KW, Shen MY, Wang SK. Unveiling the Complex World of Extracellular Vesicles: Novel Characterization Techniques and Manufacturing Considerations. Chonnam Med J 2024; 60:1-12. [PMID: 38304124 PMCID: PMC10828078 DOI: 10.4068/cmj.2024.60.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/03/2024] Open
Abstract
Extracellular vesicles (EVs) function as potent mediators of intercellular communication for many in vivo processes, contributing to both health and disease related conditions. Given their biological origins and diverse functionality from correspondingly unique "cargo" compositions, both endogenous and modified EVs are garnering attention as promising therapeutic modalities and vehicles for targeted therapeutic delivery applications. Their diversity in composition, however, has revealed a significant need for more comprehensive analytical-based characterization methods, and manufacturing processes that are consistent and scalable. In this review, we explore the dynamic landscape of EV research and development efforts, ranging from novel isolation approaches, to their analytical assessment through novel characterization techniques, and to their production by industrial-scale manufacturing process considerations. Expanding the horizon of these topics to EVs for in-human applications, we underscore the need for stringent development and adherence to Good Manufacturing Practice (GMP) guidelines. Wherein, the intricate interplay of raw materials, production in bioreactors, and isolation practices, along with analytical assessments compliant with the Minimal Information for Studies of Extracellular Vesicles (MISEV) guidelines, in conjunction with reference standard materials, collectively pave the way for standardized and consistent GMP production processes.
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Affiliation(s)
- James J. Lai
- Department of Bioengineering, University of Washington, Seattle, WA, USA
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - John J. Hill
- Department of Bioengineering, University of Washington, Seattle, WA, USA
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
- Department of Medicinal Chemistry, University of Washington, Seattle, WA, USA
- BioProcess Technology Group, BDO, Boston, MA, USA
| | - Casey Y. Huang
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Gino C. Lee
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Karol W. Mai
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Maggie Y. Shen
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Simon K. Wang
- Department of Bioengineering, University of Washington, Seattle, WA, USA
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