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Angga MS, Malla B, Raya S, Kitano A, Xie X, Saitoh H, Ohnishi N, Haramoto E. Development of a magnetic nanoparticle-based method for concentrating SARS-CoV-2 in wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157613. [PMID: 35901898 PMCID: PMC9310541 DOI: 10.1016/j.scitotenv.2022.157613] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Several virus concentration methods have been developed to increase the detection sensitivity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in wastewater, as part of applying wastewater-based epidemiology. Polyethylene glycol (PEG) precipitation method, a method widely used for concentrating viruses in wastewater, has some limitations, such as long processing time. In this study, Pegcision, a PEG-based method using magnetic nanoparticles (MNPs), was applied to detect SARS-CoV-2 in wastewater, with several modifications to increase its sensitivity and throughput. An enveloped virus surrogate, Pseudomonas phage φ6, and a non-enveloped virus surrogate, coliphage MS2, were seeded into wastewater samples and quantified using reverse transcription-quantitative polymerase chain reaction to assess the recovery performance of the Pegcision. Neither increasing MNP concentration nor reducing the reaction time to 10 min affected the recovery, while adding polyacrylic acid as a polyanion improved the detection sensitivity. The performance of the Pegcision was further compared to that of the PEG precipitation method based on the detection of SARS-CoV-2 and surrogate viruses, including indigenous pepper mild mottle virus (PMMoV), in wastewater samples (n = 27). The Pegcision showed recovery of 14.1 ± 6.3 % and 1.4 ± 1.0 % for φ6 and MS2, respectively, while the PEG precipitation method showed recovery of 20.4 ± 20.2 % and 18.4 ± 21.9 % (n = 27 each). Additionally, comparable PMMoV concentrations were observed between the Pegcision (7.9 ± 0.3 log copies/L) and PEG precipitation methods (8.0 ± 0.2 log copies/L) (P > 0.05) (n = 27). SARS-CoV-2 RNA was successfully detected in 11 (41 %) each of 27 wastewater samples using the Pegcision and PEG precipitation methods. The Pegcision showed comparable performance with the PEG precipitation method for SARS-CoV-2 RNA concentration, suggesting its applicability as a virus concentration method.
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Affiliation(s)
- Made Sandhyana Angga
- Department of Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Bikash Malla
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Sunayana Raya
- Department of Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Ayame Kitano
- Yokohama R&D Center, JNC Corporation, 5-1 Okawa, Kanazawa-ku, Yokohama, Kanagawa 236-8605, Japan.
| | - Xiaomao Xie
- Yokohama R&D Center, JNC Corporation, 5-1 Okawa, Kanazawa-ku, Yokohama, Kanagawa 236-8605, Japan.
| | - Hiroshi Saitoh
- Yokohama R&D Center, JNC Corporation, 5-1 Okawa, Kanazawa-ku, Yokohama, Kanagawa 236-8605, Japan.
| | - Noriyuki Ohnishi
- Corporate Research and Development Division, JNC Corporation, 5-1 Goikaigan, Ichihara, Chiba 290-8551, Japan.
| | - Eiji Haramoto
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan.
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Kumamoto N, Chanthaset N, Ajiro H. Polylactide stereocomplex bearing vinyl groups at chain ends prepared by allyl alcohol, malic acid, and citric acid. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Jiang P, Zhu Y, Kang K, Luo B, He J, Wu Y. Protein corona of magnetic PEI/siRNA complex under the influence of a magnetic field improves transfection efficiency via complement and coagulation cascades. J Mater Chem B 2019. [DOI: 10.1039/c9tb00746f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Magnetic fields enhance the silencing efficiency via the alteration of protein corona adsorbed on magnetic PEI/siRNA complex.
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Affiliation(s)
- Peipei Jiang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yue Zhu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Ke Kang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Bin Luo
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Jing He
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yao Wu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- P. R. China
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Li Y, Hei M, Xu Y, Qian X, Zhu W. Ammonium salt modified mesoporous silica nanoparticles for dual intracellular-responsive gene delivery. Int J Pharm 2016; 511:689-702. [PMID: 27426108 DOI: 10.1016/j.ijpharm.2016.07.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Revised: 06/30/2016] [Accepted: 07/14/2016] [Indexed: 01/12/2023]
Abstract
Effective gene delivery system plays an importmant role in the gene therapy. Mesoporous silica nanoparticle (MSN) has become one potential gene delivery vector because of its high stability, good biodegradability and low cytotoxicity. Herein, MSN-based dual intracellular responsive gene delivery system CMSN-A was designed and fabricated. Short chain ammonium group, which is modified with disulfide bond and amide bond simultaneously, is facilely grafted onto the mesoporous silica nanoparticles. As-synthesized CMSN-A is endowed with small size (80-110nm), large conical pores (15-23nm), and moderate Zeta potential (+25±2mV), which behaves high gene loading capacity, good stability and effectively gene transfection. Moreover, CMSN-A exhibits dual micro-environment responsive (lower pH, more reducing substances) due to the redox-sensitive disulfide bond and pH-sensitive amide bond in the short chain ammonium group. The cellular uptake study indicates that CMSN-A could transfer both plasmid DNA (pDNA) and siRNA into different kinds of tumour cells, which demonstrate the promising potential of CMSN-A as effective and safe gene-delivery vectors.
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Affiliation(s)
- Yujie Li
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Mingyang Hei
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yufang Xu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xuhong Qian
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Weiping Zhu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
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