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Yue Y, Ouyang H, Ma M, Yang Y, Zhang H, He A, Liu R. Nucleic acid aptasensor with magnetically induced self-assembly for the detection of EpCAM glycoprotein. Mikrochim Acta 2023; 191:64. [PMID: 38157059 DOI: 10.1007/s00604-023-06117-y] [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: 09/18/2023] [Accepted: 11/23/2023] [Indexed: 01/03/2024]
Abstract
A "turn-on" aptasensor for label-free and cell-free EpCAM detection was constructed by employing magnetic α-Fe2O3/Fe3O4@Au nanocomposites as a matrix for signal amplification and double-stranded complex (SH-DNA/Apt probes) immobilization through Au-S binding. α-Fe2O3/Fe3O4@Au could be efficiently assembled into uniform and stable self-assembly films via magnetic-induced self-assembly technique on a magnetic glassy carbon electrode (MGCE). The effectiveness of the platform for EpCAM detection was confirmed through differential pulse voltammetry (DPV). Under optimized conditions, the platform exhibited excellent specificity for EpCAM, and a strong linear correlation was observed between the current and the logarithm of EpCAM protein concentration in the range 1 pg/mL-1000 pg/mL (R2 = 0.9964), with a limit of detection (LOD) of 0.27 pg/mL. Furthermore, the developed platform demonstrated good stability during a 14-day storage test, with fluctuations remaining below 93.33% of the initial current value. Promising results were obtained when detecting EpCAM in spiked serum samples, suggesting its potential as a point-of-care (POC) testing.
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Affiliation(s)
- Yao Yue
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Hezhong Ouyang
- The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, 212300, People's Republic of China
| | - Mingyi Ma
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Yaping Yang
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Haoda Zhang
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Aolin He
- Affiliated Kunshan Hospital, Jiangsu University, Suzhou, 215300, People's Republic of China.
| | - Ruijiang Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
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Ni Y, Deng P, Yin R, Zhu Z, Ling C, Ma M, Wang J, Li S, Liu R. Effect and mechanism of paclitaxel loaded on magnetic Fe 3O 4@mSiO 2-NH 2-FA nanocomposites to MCF-7 cells. Drug Deliv 2023; 30:64-82. [PMID: 36474448 PMCID: PMC9744220 DOI: 10.1080/10717544.2022.2154411] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Magnetic Fe3O4 nanoparticles were prepared via a simple hydrothermal method and utilized to load paclitaxel. The average particle size of Fe3O4 nanoparticles was found to be 20.2 ± 3.0 nm, and the calculated saturation magnetization reached 129.38 emu/g, verifying superparamagnetism of nanomaterials. The specific surface area and pore volume were 84.756 m2/g and 0.265 cm3/g, respectively. Subsequently, Fe3O4@mSiO2 nanoparticles were successfully fabricated using the Fe3O4 nanoparticles as precursors with an average size of 27.81 nm. The relevant saturation magnetization, zeta potential, and specific surface area of Fe3O4@mSiO2-NH2-FA were respectively 76.3 emu/g, -14.1 mV, and 324.410 m2/g. The pore volume and average adsorption pore size were 0.369 cm3/g and 4.548 nm, respectively. Compared to free paclitaxel, the solubility and stability of nanoparticles loaded with paclitaxel were improved. The drug loading efficiency and drug load of the nanoformulation were 44.26 and 11.38%, respectively. The Fe3O4@mSiO2-NH2-FA nanocomposites were easy to construct with excellent active targeting performance, pH sensitivity, and sustained-release effect. The nanoformulation also showed good biocompatibility, where the cell viability remained at 73.8% when the concentration reached 1200 μg/mL. The nanoformulation induced cell death through apoptosis, as confirmed by AO/EB staining and flow cytometry. Western blotting results suggested that the nanoformulation could induce iron death by inhibiting Glutathione Peroxidase 4 (GPX4) activity or decreasing Ferritin Heavy Chain 1 (FTH1) expression. Subsequently, the expression of HIF-1α was upregulated owing to the accumulation of reactive oxygen species (ROS), thus affecting the expression of apoptosis-related proteins regulated by p53, inducing cell apoptosis.
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Affiliation(s)
- Yun Ni
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Peng Deng
- The People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, P.R. China
| | - Ruitong Yin
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Ziye Zhu
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Chen Ling
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Mingyi Ma
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Jie Wang
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Shasha Li
- Affiliated Kunshan Hospital, Jiangsu University, Suzhou, P.R. China,CONTACT Shasha Li
| | - Ruijiang Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China,Ruijiang Liu
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Adsorption Characteristics and Electrochemical Behaviors of Congo Red onto Magnetic MgxCo(1−x)Fe2O4 Nanoparticles Prepared via the Alcohol Solution Combustion Process of Nitrate. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02545-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
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Xia L, Zhang C, Su K, Fan J, Niu Y, Yu Y, Chai R. Oriented Growth of Neural Stem Cell–Derived Neurons Regulated by Magnetic Nanochains. Front Bioeng Biotechnol 2022; 10:895107. [PMID: 35677297 PMCID: PMC9168218 DOI: 10.3389/fbioe.2022.895107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Neural stem cell therapy has become a promising cure in the treatment of neurodegenerative disorders. Owing to the anisotropy of the nervous system, the newly derived neurons need not only the functional integrity but also the oriented growth to contact with the partner cells to establish functional connections. So the oriented growth of the newly derived neurons is a key factor in neural stem cell–based nerve regeneration. Nowadays, various biomaterials have been applied to assist in the oriented growth of neural stem cell–derived neurons. However, among these biomaterials, the magnetic materials applied in guiding the neuronal growth are still fewer than the other materials, such as the fibers. So in this work, we developed the magnetic nanochains to guide the oriented growth of neural stem cell–derived neurons. With the guidance of the magnetic nanochains, the seeded neural stem cells exhibited a good arrangement, and the neural stem cell–derived neurons showed well-oriented growth with the orientation of the nanochains. We anticipated that the magnetic nanochains would have huge potential in stem cell–based nerve regeneration.
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Affiliation(s)
- Lin Xia
- State Key Laboratory of Bioelectronics, Department of Otolaryngology Head and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology, Advanced Institute for Life and Health, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China
| | - Chen Zhang
- Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China
| | - Kaiming Su
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jiangang Fan
- Department of Otolaryngology Head and Neck Surgery, Sichuan Academy of Medical Science, Sichuan Provincial People’s Hospital, Chengdu, China
- *Correspondence: Jiangang Fan, ; Yuguang Niu, ; Yafeng Yu, ; Renjie Chai,
| | - Yuguang Niu
- Department of Ambulatory Medicine, The First Medical Center of PLA General Hospital, Beijing, China
- *Correspondence: Jiangang Fan, ; Yuguang Niu, ; Yafeng Yu, ; Renjie Chai,
| | - Yafeng Yu
- Department of Otolaryngology, First Affiliated Hospital of Soochow University, Suzhou, China
- *Correspondence: Jiangang Fan, ; Yuguang Niu, ; Yafeng Yu, ; Renjie Chai,
| | - Renjie Chai
- State Key Laboratory of Bioelectronics, Department of Otolaryngology Head and Neck Surgery, Zhongda Hospital, School of Life Sciences and Technology, Advanced Institute for Life and Health, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, China
- Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Science, Beijing, China
- *Correspondence: Jiangang Fan, ; Yuguang Niu, ; Yafeng Yu, ; Renjie Chai,
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Liu X, Wu Y, Wang Y, Wei H, Guo J, Yang Y. Extraction of Au( iii) from hydrochloric acid media using a novel amide-based ionic liquid. NEW J CHEM 2022. [DOI: 10.1039/d2nj04437d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A study on the performance of selective extraction of Au(iii) using a novel amide-based IL.
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Affiliation(s)
- Xiaoxia Liu
- Key Laboratory for Special Functional Aggregate Materials of Education Miniatry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Yang Wu
- Key Laboratory for Special Functional Aggregate Materials of Education Miniatry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Yangyang Wang
- Key Laboratory for Special Functional Aggregate Materials of Education Miniatry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Huiying Wei
- Key Laboratory for Special Functional Aggregate Materials of Education Miniatry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Jinxin Guo
- Key Laboratory for Special Functional Aggregate Materials of Education Miniatry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Yanzhao Yang
- Key Laboratory for Special Functional Aggregate Materials of Education Miniatry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
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