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Lee H, Hong Y, Lee D, Hwang S, Lee G, Yang J, Yoon DS. Surface potential microscopy of surfactant-controlled single gold nanoparticle. NANOTECHNOLOGY 2020; 31:215706. [PMID: 32032003 DOI: 10.1088/1361-6528/ab73b7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The surface potential of nanoparticles plays a key role in numerous applications, such as drug delivery and cellular uptake. The estimation of the surface potential of nanoparticles as drug carriers or contrast agents is important for the design of nanoparticle-based biomedical platforms. Herein, we report the direct measurement of the surface potential of individual gold nanorods (GNRs) via Kelvin probe force microscopy (KPFM) at the nanoscale. GNRs were capped by a surfactant, cetyltrimethylammonium bromide (CTAB), which was removed by centrifugation. CTAB removal is essential for GNR-based biomedical applications because of the cytotoxicity of CTAB. Applying KPFM analysis, we found that the mean surface potential of the GNRs became more negative as the CTAB was removed from the GNR. The results indicate that the negative charge of GNRs is covered by the electrostatic charge of the CTAB molecules. Similar trends were observed in experiments with gold nanospheres (GNS) capped by citrates. Overall, KPFM-based techniques characterize the surfactant of individual nanoparticles (i.e. GNR or GNS) with high resolution by mapping the surface potential of a single nanoparticle, which aids in designing engineered nanoparticles for biomedical applications.
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Affiliation(s)
- Hyungbeen Lee
- Center for BioMicrosystems, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
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Safarpour H, Dehghani S, Nosrati R, Zebardast N, Alibolandi M, Mokhtarzadeh A, Ramezani M. Optical and electrochemical-based nano-aptasensing approaches for the detection of circulating tumor cells (CTCs). Biosens Bioelectron 2019; 148:111833. [PMID: 31733465 DOI: 10.1016/j.bios.2019.111833] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/25/2019] [Accepted: 10/29/2019] [Indexed: 02/07/2023]
Abstract
More recently, detection of circulating tumor cells (CTCs) has been considered as an appealing prognostic and diagnostic approach for cancer patients. CTCs as a type of tumor-derived cells are secreted by the tumor and released into the blood circulation. Since the migration of CTCs is an early event in cancer progression, patients who still have tumor-free lymph nodes have to be well examined for the CTCs presence in their blood circulation. Nowadays, there is a broad range of detection methods available to identify CTCs. As artificial RNA oligonucleotides or single-stranded DNA with receptor and catalytic characteristics, aptamers have been standing out, owing to their target-induced conformational modifications, elevated stability, and target specificity to be implemented in biosensing techniques. To date, several sensitivity-enhancement methods alongside smart nanomaterials have been used for the creation of new aptasensors to address the limit of detection (LOD), and improve the sensitivity of numerous analyte identification methods. The present review article supports a focused overview of the recent studies in the identification and quantitative determination of CTCs by aptamer-based biosensors and nanobiosensors.
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Affiliation(s)
- Hossein Safarpour
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Sadegh Dehghani
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rahim Nosrati
- Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nozhat Zebardast
- Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
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Atomic force microscopy-based cancer diagnosis by detecting cancer-specific biomolecules and cells. Biochim Biophys Acta Rev Cancer 2019; 1871:367-378. [DOI: 10.1016/j.bbcan.2019.03.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/21/2019] [Accepted: 03/26/2019] [Indexed: 02/07/2023]
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Bang D, Lee T, Park J, Lee G, Haam S, Park J. Enhancement of Capturing Efficacy for Circulating Tumor Cells by Centrifugation. BIOCHIP JOURNAL 2018. [DOI: 10.1007/s13206-017-2105-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Lee H, Lee SW, Lee G, Lee W, Lee JH, Hwang KS, Yang J, Lee SW, Yoon DS. Kelvin probe force microscopy of DNA-capped nanoparticles for single-nucleotide polymorphism detection. NANOSCALE 2016; 8:13537-44. [PMID: 27127876 DOI: 10.1039/c5nr08969g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Kelvin probe force microscopy (KPFM) is a robust toolkit for profiling the surface potential (SP) of biomolecular interactions between DNAs and/or proteins at the single molecule level. However, it has often suffered from background noise and low throughput due to instrumental or environmental constraints, which is regarded as limiting KPFM applications for detection of minute changes in the molecular structures such as single-nucleotide polymorphism (SNP). Here, we show KPFM imaging of DNA-capped nanoparticles (DCNP) that enables SNP detection of the BRCA1 gene owing to sterically well-adjusted DNA-DNA interactions that take place within the confined spaces of DCNP. The average SP values of DCNP interacting with BRCA1 SNP were found to be lower than the DCNP reacting with normal (non-mutant) BRCA1 gene. We also demonstrate that SP characteristics of DCNP with different substrates (e.g., Au, Si, SiO2, and Fe) provide us with a chance to attenuate or augment the SP signal of DCNP without additional enhancement of instrumentation capabilities.
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Affiliation(s)
- Hyungbeen Lee
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea.
| | - Sang Won Lee
- Department of Bio-convergence Engineering, Korea University, Seoul 02841, Korea.
| | - Gyudo Lee
- School of Public Health, Harvard University, Boston, Massachusetts 02115, USA
| | - Wonseok Lee
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea.
| | - Jeong Hoon Lee
- Department of Electrical Engineering, Kwangwoon University, Seoul 01897, Korea
| | - Kyo Seon Hwang
- Center for Biomicrosystem, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Sang Woo Lee
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Korea.
| | - Dae Sung Yoon
- Department of Bio-convergence Engineering, Korea University, Seoul 02841, Korea.
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Bhana S, Wang Y, Huang X. Nanotechnology for enrichment and detection of circulating tumor cells. Nanomedicine (Lond) 2016; 10:1973-90. [PMID: 26139129 DOI: 10.2217/nnm.15.32] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Circulating tumor cells (CTCs) are a hallmark of invasive behavior of cancer, responsible for the development of metastasis. Their detection and analysis have significant impacts in cancer biology and clinical practice. However, CTCs are rare events and contain heterogeneous subpopulations, requiring highly sensitive and specific techniques to identify and capture CTCs with high efficiency. Nanotechnology shows strong promises for CTC enrichment and detection owning to the unique structural and functional properties of nanoscale materials. In this review, we discuss the CTC enrichment and detection technologies based on a variety of functional nanosystems and nanostructured substrates, with the goal to highlight the role of nanotechnology in the advancement of basic and clinical CTC research.
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Affiliation(s)
- Saheel Bhana
- Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA
| | - Yongmei Wang
- Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA
| | - Xiaohua Huang
- Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA
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Park S, Kang YJ, Majd S. A Review of Patterned Organic Bioelectronic Materials and their Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:7583-7619. [PMID: 26397962 DOI: 10.1002/adma.201501809] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/17/2015] [Indexed: 06/05/2023]
Abstract
Organic electronic materials are rapidly emerging as superior replacements for a number of conventional electronic materials, such as metals and semiconductors. Conducting polymers, carbon nanotubes, graphenes, organic light-emitting diodes, and diamond films fabricated via chemical vapor deposition are the most popular organic bioelectronic materials that are currently under active research and development. Besides the capability to translate biological signals to electrical signals or vice versa, organic bioelectronic materials entail greater biocompatibility and biodegradability compared to conventional electronic materials, which makes them more suitable for biomedical applications. When patterned, these materials bring about numerous capabilities to perform various tasks in a more-sophisticated and high-throughput manner. Here, we provide an overview of the unique properties of organic bioelectronic materials, different strategies applied to pattern these materials, and finally their applications in the field of biomedical engineering, particularly biosensing, cell and tissue engineering, actuators, and drug delivery.
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Affiliation(s)
- SooHyun Park
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - You Jung Kang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Sheereen Majd
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA
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Lu W, Wang HY, Wang M, Wang Y, Tao L, Qian W. Au nanoparticle decorated resin microspheres: synthesis and application in electrochemical cytosensors for sensitive and selective detection of lung cancer A549 cells. RSC Adv 2015. [DOI: 10.1039/c5ra00444f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A novel cytosensor that can sensitively differentiate cancer cells from normal ones is prepared by using antibody-decorated resin microspheres.
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Affiliation(s)
- Wenbo Lu
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Hong-Yin Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Man Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Ying Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Lin Tao
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Weiping Qian
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
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Patra HK, Turner AP. The potential legacy of cancer nanotechnology: cellular selection. Trends Biotechnol 2014; 32:21-31. [DOI: 10.1016/j.tibtech.2013.10.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 10/06/2013] [Accepted: 10/16/2013] [Indexed: 11/30/2022]
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