1
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Jin S, Ahn Y, Park J, Park M, Lee S, Lee WJ, Seo D. Temporal Patterns of Angular Displacement of Endosomes: Insights into Motor Protein Exchange Dynamics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306849. [PMID: 38828676 PMCID: PMC11304332 DOI: 10.1002/advs.202306849] [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: 09/21/2023] [Revised: 03/24/2024] [Indexed: 06/05/2024]
Abstract
The material transport system, facilitated by motor proteins, plays a vital role in maintaining a non-equilibrium cellular state. However, understanding the temporal coordination of motor protein activity requires an advanced imaging technique capable of measuring 3D angular displacement in real-time. In this study, a Fourier transform-based plasmonic dark-field microscope has been developed using anisotropic nanoparticles, enabling the prolonged and simultaneous observation of endosomal lateral and rotational motion. A sequence of discontinuous 3D angular displacements has been observed during the pause and run phases of transport. Notably, a serially correlated temporal pattern in the intermittent rotational events has been demonstrated during the tug-of-war mechanism, indicating Markovian switching between the exploitational and explorational modes of motor protein exchange prior to resuming movement. Alterations in transition frequency and the exploitation-to-exploration ratio upon dynein inhibitor treatment highlight the relationship between disrupted motor coordination and reduced endosomal transport efficiency. Collectively, these results suggest the importance of orchestrated temporal motor protein patterns for efficient cellular transport.
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Affiliation(s)
- Siwoo Jin
- Department of Physics and ChemistryDGISTDaegu42988Republic of Korea
| | - Yongdeok Ahn
- Department of Physics and ChemistryDGISTDaegu42988Republic of Korea
| | - Jiseong Park
- Department of Physics and ChemistryDGISTDaegu42988Republic of Korea
| | - Minsoo Park
- Department of Physics and ChemistryDGISTDaegu42988Republic of Korea
| | - Sang‐Chul Lee
- Division of Nanotechnology, and Department of DGISTDaegu42988Republic of Korea
| | - Wonhee J. Lee
- Department of Physics and ChemistryDGISTDaegu42988Republic of Korea
| | - Daeha Seo
- Department of Physics and ChemistryDGISTDaegu42988Republic of Korea
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2
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Kim GW, Ha JW. Direct Observation of In-Focus Plasmonic Cargos via Breaking Angular Degeneracy in Differential Interference Contrast Microscopy. JACS AU 2023; 3:3436-3445. [PMID: 38155657 PMCID: PMC10751767 DOI: 10.1021/jacsau.3c00594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 12/30/2023]
Abstract
Breaking the angular degeneracy arising from the 2-fold optical symmetry of plasmonic anisotropic nanoprobes is critical in biological studies. In this study, we propose differential interference contrast (DIC) microscopy-based focused orientation and position imaging (dFOPI) to break the angular degeneracy of single gold nanorods (AuNRs). Single in-focus AuNRs (39 nm × 123 nm) within a spherical mesoporous silica shell were characterized with high throughput and produced distinct doughnut-shaped DIC image patterns featuring two lobes in the peripheral region, attributed to the scattering contribution of the AuNRs with large scattering cross sections. Interestingly, rotation of the lobes was observed in the focal plane for a large AuNR (>100 nm) tilted by more than ∼20° from the horizontal plane as the rotational stage was moved by 10° in a rotational study. From the rotation-dependent characteristic patterns, we directly visualized counterclockwise/clockwise rotations without the angular degeneracy at the localized surface plasmon resonance wavelength. Therefore, our dFOPI method can be applied for in vivo studies of important biological systems. To validate this claim, we tracked the three-dimensional rotational behavior of transferrin-modified in-focus AuNRs during clathrin-mediated endocytosis in real time without sacrificing the temporal and spatial resolution. In the invagination and scission stage, one or two directed twist motions of the AuNR cargos detached the AuNR-containing vesicles from the cell membrane. Furthermore, the dFOPI method directly visualized and revealed the right-handed twisting action along the dynamin helix in dynamin-catalyzed fission in live cells.
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Affiliation(s)
- Geun Wan Kim
- Department
of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, South Korea
| | - Ji Won Ha
- Department
of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, South Korea
- Energy
Harvest-Storage Research Center (EHSRC), University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, South Korea
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3
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Sun H, Qi H, Hu W, Guan L, Xue J, Ai Y, Wang Y, Ding M, Liang Q. Single Nanovesicles Tracking Reveals Their Heterogeneous Extracellular Adsorptions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301888. [PMID: 37467296 DOI: 10.1002/smll.202301888] [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: 03/04/2023] [Revised: 06/07/2023] [Indexed: 07/21/2023]
Abstract
The vigorous nanomedicine offers significant possibilities for effective therapeutics of various diseases, and nanovesicles (NVs) represented by artificial liposomes and natural exosomes and cytomembranes especially show great potential. However, their complex interactions with cells, particularly the heterogeneous extracellular adsorptions, are difficult to analyze spatiotemporally due to the transient dynamics. In this study, by single NVs tracking, the extracellular NVs adsorptions are directly observed and their heterogeneous characteristics are revealed. Briefly, plenty of NVs adsorbed on HCT116 cells are tracked and classified, and it is discovered that they exhibit various diffusion properties from different extracellular regions: stable adsorptions on the rear surface and restricted adsorptions on the front protrusion. After the hydrolysis of hyaluronic acid in the extracellular matrix by hyaluronidase, the restricted adsorptions are further weakened and manifested as dissociative adsorptions, which demonstrated reduced total NVs adsorptions from a single-cell and single-particle perspective. Compared with traditional static analysis, the spatiotemporal tracking and heterogeneous results not only reveal the extracellular NVs-cell interactions but also inspire a wide variety of nanomedicine and their nano-investigations.
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Affiliation(s)
- Hua Sun
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Huibo Qi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Wanting Hu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Liandi Guan
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jianfeng Xue
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yongjian Ai
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yu Wang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Mingyu Ding
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Qionglin Liang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Laboratory of Flexible Electronics Technology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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4
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Cao Y, Lee S, Kim K, Kwak JY, Kang SH. Real-time six-dimensional spatiotemporal tracking of single anisotropic nanoparticles in live cells by integrated multifunctional light-sheet nanoscopy. Mikrochim Acta 2023; 190:54. [PMID: 36642770 PMCID: PMC9841004 DOI: 10.1007/s00604-023-05633-1] [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: 10/22/2022] [Accepted: 12/24/2022] [Indexed: 01/17/2023]
Abstract
An integrated multifunctional light-sheet nanoscopy (iMLSN) combined with differential interference contrast, total internal reflection, epifluorescence, a super-resolution radial fluctuation-stream module, and a wavelength-dependent light sheet was developed to simultaneously realize the six-dimensional (6D) vector-valued (three coordinates + rotational dynamics (azimuth and elevation angles) + transport speed) tracking of anisotropic nanoparticles in single living cells. The wavelength-dependent asymmetric scattering of light by gold nanorods was used to trigger signals depending on the polarizer angle, and real-time photo-switching was achieved by turning the polarizer, obtaining a series of super-resolution images, and tracking using different polarization directions and two channels. This technique was employed to directly observe native gold nanorods (AuNRs; 5 nm diameter × 15 nm length) and surface-functionalized AuNRs during their endocytosis and transport at the upper and attaching side membrane regions of single living cells, revealing that the AuNRs bound to the membrane receptors. The nanorods were subsequently internalized and transported away from the original entry spots. Detailed dynamic information regarding the rotation properties and endocytosis speed during the transmembrane process was also acquired for each region. The developed technique can be considered useful for the real-time monitoring of intracellular transport at various regions in single living cells, as well as for 6D vector-valued non-fluorescence super-resolution imaging and tracking.
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Affiliation(s)
- Yingying Cao
- Department of Chemistry, Graduate School, Kyung Hee University, Yongin-Si, Gyeonggi-Do 17104 Republic of Korea
| | - Seungah Lee
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-Si, Gyeonggi-Do 17104 Republic of Korea
| | - Kyungsoo Kim
- Department of Applied Mathematics, Kyung Hee University, Yongin-Si, Gyeonggi-Do 17104 Republic of Korea
| | - Jong-Young Kwak
- Department of Pharmacology, Ajou University School of Medicine, 164 World Cup-Ro, Yeongtong-Gu, Suwon, 16499 Republic of Korea
| | - Seong Ho Kang
- Department of Chemistry, Graduate School, Kyung Hee University, Yongin-Si, Gyeonggi-Do 17104 Republic of Korea ,Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-Si, Gyeonggi-Do 17104 Republic of Korea
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5
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Xue J, Wang Z, Zhang H, He Y. Viscosity Measurement in Biocondensates Using Deep-Learning-Assisted Single-Particle Rotational Analysis. J Phys Chem B 2022; 126:7541-7551. [PMID: 36129778 DOI: 10.1021/acs.jpcb.2c03243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Viscoelastic characterization is of great importance for the investigation of biomolecular condensates. Single-particle-tracking-based rotational diffusion analysis of single nanorods is an effective approach for quantitative viscosity measurement. However, in the case of high background and noise with high-speed image acquisition, accurate extraction of diffusivity from the data is a challenging task. Here, we develop a novel frequency-domain-based deep learning (DL) method for single nanorod rotational tracking analysis. We synthesized Brownian rotational time-series data for training, designed a data preprocessing module to reduce the effect of noise, and extracted rotational diffusion coefficient using recurrent neural networks in the frequency domain. Compared with the traditional curve-fitting-based methods, our method shows higher accuracy and a wider detection range for viscosity measurement. We verified our method using experimental data from plasmonic imaging of single gold nanorods (AuNRs) in glycerol solution and PGL droplets. Our method can be potentially applied to the viscosity measurement of different biomolecular condensates in vitro and in vivo.
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Affiliation(s)
- Jianfeng Xue
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Zheng Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Hong Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan He
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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6
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Lin X, He Y. Study Enhanced Enzyme Diffusion with High-Speed Single Nanoparticle Rotational and Translational Tracking. Anal Chem 2022; 94:7158-7163. [PMID: 35533299 DOI: 10.1021/acs.analchem.2c00363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Catalytic enzymes exhibiting enhanced motion have drawn extensive attention over the past decade; nevertheless, little is known about the effect on the environment induced by enzymes. Herein, we studied the active urease system by simultaneously monitoring the diffusion of single anisotropic gold nanorods (AuNRs) with high speed dark-field imaging. We found both the translational and the rotational diffusion coefficients of AuNRs were enhanced but with inconsistent degrees, indicating the catalytic reaction had a minor effect on the physiochemical properties of the environment according to the Stokes-Einstein equation. With the increase of substrate concentration, the diffusion of AuNRs showed increased spatial but decreased temporal heterogeneity. Additionally, high speed imaging revealed AuNRs could experience intermittent ballistic motion for tens of milliseconds. These results imply inhomogeneous distribution of enzymes in free solution induced by active enzymatic reactions.
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Affiliation(s)
- Xijian Lin
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Yan He
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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7
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Filbrun SL, Zhao F, Chen K, Huang TX, Yang M, Cheng X, Dong B, Fang N. Imaging Dynamic Processes in Multiple Dimensions and Length Scales. Annu Rev Phys Chem 2022; 73:377-402. [PMID: 35119943 DOI: 10.1146/annurev-physchem-090519-034100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Optical microscopy has become an invaluable tool for investigating complex samples. Over the years, many advances to optical microscopes have been made that have allowed us to uncover new insights into the samples studied. Dynamic changes in biological and chemical systems are of utmost importance to study. To probe these samples, multidimensional approaches have been developed to acquire a fuller understanding of the system of interest. These dimensions include the spatial information, such as the three-dimensional coordinates and orientation of the optical probes, and additional chemical and physical properties through combining microscopy with various spectroscopic techniques. In this review, we survey the field of multidimensional microscopy and provide an outlook on the field and challenges that may arise. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 73 is April 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Seth L Filbrun
- Department of Chemistry, Georgia State University, Atlanta, Georgia, USA
| | - Fei Zhao
- Department of Chemistry, Georgia State University, Atlanta, Georgia, USA
| | - Kuangcai Chen
- Department of Chemistry, Georgia State University, Atlanta, Georgia, USA.,Imaging Core Facility, Georgia State University, Atlanta, Georgia, USA
| | - Teng-Xiang Huang
- Department of Chemistry, Georgia State University, Atlanta, Georgia, USA
| | - Meek Yang
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, USA;
| | - Xiaodong Cheng
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen Key Laboratory of Analytical Molecular Nanotechnology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, China; ,
| | - Bin Dong
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, USA;
| | - Ning Fang
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen Key Laboratory of Analytical Molecular Nanotechnology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, China; ,
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8
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Orientation-independent reaction activity monitoring with single particle and data analytics. J Colloid Interface Sci 2021; 590:458-466. [PMID: 33561595 DOI: 10.1016/j.jcis.2021.01.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/09/2021] [Accepted: 01/25/2021] [Indexed: 11/20/2022]
Abstract
Single-particle analysis is the most powerful method to obtain accurate local information for understanding and monitoring chemical reactions. However, investigations about obtaining comprehensive information at the single-particle level to overcome individual errors and sampling randomness have not been reported to date. Plasmonic nanorods, which have excellent anisotropic optical and chemical properties, make us in situ acquisition of conformation and dynamics of the biological information. On the basis of their anisotropic optical properties of the plasmonic nanorods such as Au nanorods (AuNRs) and data analytics, herein we developed a high-throughput resonance scattering imaging method of AuNRs under dark-field microscopy (DFM) to monitor orientation-independent reaction activity of AuNRs. Data analytics are introduced to determine a large number of AuNRs orientation obtained from a series of polarized DFM images, allowing us to real-time monitor reaction activity of AuNRs at all orientations, and also makes it possible to study the global and local reaction processes of AuNRs at single-particle level. Our method is expected to provide a new strategy for analytical study and single-particle sensing in chemistry.
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9
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Kim GW, Ha JW. Single gold nanostars with multiple branches as multispectral orientation probes in single-particle rotational tracking. Chem Commun (Camb) 2021; 57:3263-3266. [PMID: 33650610 DOI: 10.1039/d1cc00731a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we performed a single-particle correlation study to characterize the optical properties of gold nanostars (AuNSs) with multiple sharp branches under dark-field (DF) and differential interference contrast (DIC) microscopy, and to examine their use as multispectral orientation probes. We presented the polarization-dependent, periodic DIC images and intensities of single AuNSs at their localized surface plasmon resonance (LSPR) wavelengths with high sensitivity. Furthermore, we demonstrated that single AuNSs protrude multiple branches that can be used as individual sensors with DIC polarization anisotropy. Thus, unlike conventional Au nanorod (AuNR) probes, single AuNSs were presented as multispectral optical sensors that can provide detailed information such as rotational motions and rotational speeds at different branches of their star-like structure in dynamic environments.
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Affiliation(s)
- Geun Wan Kim
- Advanced Nano-Bio-Imaging and Spectroscopy Laboratory, Department of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea.
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10
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Ma J, Wang X, Feng J, Huang C, Fan Z. Individual Plasmonic Nanoprobes for Biosensing and Bioimaging: Recent Advances and Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2004287. [PMID: 33522074 DOI: 10.1002/smll.202004287] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/27/2020] [Indexed: 06/12/2023]
Abstract
With the advent of nanofabrication techniques, plasmonic nanoparticles (PNPs) have been widely applied in various research fields ranging from photocatalysis to chemical and bio-sensing. PNPs efficiently convert chemical or physical stimuli in their local environment into optical signals. PNPs also have excellent properties, including good biocompatibility, large surfaces for the attachment of biomolecules, tunable optical properties, strong and stable scattering light, and good conductivity. Thus, single optical biosensors with plasmonic properties enable a broad range of uses of optical imaging techniques in biological sensing and imaging with high spatial and temporal resolution. This work provides a comprehensive overview on the optical properties of single PNPs, the description of five types of commonly used optical imaging techniques, including surface plasmon resonance (SPR) microscopy, surface-enhanced Raman scattering (SERS) technique, differential interference contrast (DIC) microscopy, total internal reflection scattering (TIRS) microscopy, and dark-field microscopy (DFM) technique, with an emphasis on their single plasmonic nanoprobes and mechanisms for applications in biological imaging and sensing, as well as the challenges and future trends of these fields.
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Affiliation(s)
- Jun Ma
- Department of Vasculocardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Xinyu Wang
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Jian Feng
- Department of Vasculocardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Chengzhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Zhongcai Fan
- Department of Vasculocardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education, Southwest Medical University, Luzhou, Sichuan, 646000, China
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11
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Liu JJ, Yan HH, Zhang Q, Gao PF, Li CM, Liang GL, Huang CZ, Wang J. High-Resolution Vertical Polarization Excited Dark-Field Microscopic Imaging of Anisotropic Gold Nanorods for the Sensitive Detection and Spatial Imaging of Intracellular microRNA-21. Anal Chem 2020; 92:13118-13125. [DOI: 10.1021/acs.analchem.0c02164] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jia Jun Liu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Hui Hong Yan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Qiang Zhang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Peng Fei Gao
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Chun Mei Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Gao Lin Liang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing, Jiangsu 210096, China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Jian Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
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12
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Yeung ES. Autobiography of an Analytical Chemist. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2020; 13:1-16. [PMID: 31904991 DOI: 10.1146/annurev-anchem-090519-111018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Most of my research directions were opportunistic. Having worked with lasers in the early stages of laser applications in analytical chemistry, attending conferences, workshops, and administrative meetings that were not exactly aligned with our own research, locating to a building or in a department that housed scientists with different backgrounds, having certain specialized equipment at the right time, and having funding agencies that were broad-minded clearly contributed to my ventures into diverse fields. Most of all, it had to be the many eager minds that I have had the fortune to work with. I have always tried to suggest research topics that might be interesting to the individual coworker rather than something straight out of my own research proposals. Only then did each person actually own the project rather than consider it a chore. After all, we work in the field of analytical chemistry, in which almost anything we do can fit in.
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Affiliation(s)
- Edward S Yeung
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA;
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13
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He Z, Li C, Robinson HD, Zhu Y. Interferometric spectroscopy and high-speed orientation detection of individual gold nanorods. NANOSCALE 2020; 12:2613-2625. [PMID: 31939977 DOI: 10.1039/c9nr09899b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although 3D positional tracking of single nanoparticles in suspension is now an established technique, the small size of the particles compared to the wavelength of light has meant it is still challenging to optically characterize individual diffusing particles in other ways. Here we introduce Quantitative Optical Anisotropy Imaging (QOAI), an interferometric technique that fills some of this gap by allowing for real-time tracking of orientation as well as spectroscopic characterization of polarizability in nanoparticles at the microsecond timescale. Applying this to gold nanorods, we demonstrate measurement of nanorod orientation with high precision with simultaneous spectroscopic characterization of the rods' longitudinal plasmon resonance. We also show that we can quantify rotational diffusion in individual particles in both the azimuthal and polar directions near a solid wall, as well as detecting binding of particles to that wall. The simple optical configuration of QOAI will make combining it with positional nanoparticle tracking techniques straightforward, and this opens the door to measurements that are not reachable with current techniques, such as detailed characterization of correlations between rotational and translational diffusion in nanoparticles, real-time observation of particle aggregation and assembly, and measurements of fluctuations in the plasmon resonance in metal nanoparticles as they encounter a changing or heterogeneous environment.
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Affiliation(s)
- Zhixing He
- Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA
| | - Chengshuai Li
- Centre for Photonics Technology, Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
| | - Hans D Robinson
- Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA
| | - Yizheng Zhu
- Centre for Photonics Technology, Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
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14
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Abstract
Different from traditional ensemble measurement methods, single-particle tracking (SPT) is a powerful approach to study the distribution of dynamic processes in a complex environment, providing crucial information from individual objects. This Feature summarizes the optical microscopic techniques and data analysis methods for scattering-based SPT. Some essential SPT-based applications within the cell are also delineated.
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Affiliation(s)
- Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin , 300071 , China
| | - Xin Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin , 300071 , China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin , 300071 , China
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15
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Sun H, Wang Z, He Y. Direct Observation of Spatiotemporal Heterogeneous Gelation by Rotational Tracking of a Single Anisotropic Nanoprobe. ACS NANO 2019; 13:11334-11342. [PMID: 31589398 DOI: 10.1021/acsnano.9b04491] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polymer network gels usually exhibit spatial heterogeneity of local defects and cross-link density, which can affect their elasticity on the microscopic scale differently. The ability to evaluate the formation and distribution of these heterogeneities is important for guiding the application of gels in biology, medicine, and separation science. Previously, it has been reported that single-particle tracking based microrheology could provide local properties of gel networks with high resolution; however, the particle probes have been limited to spherical micro/nanotracers undergoing translational motions. In this work, we used single gold nanorods (AuNRs) as rotational microrheology probes to study the polyacrylamide gelation process by dual-channel polarization dark-field microscopy. The AuNRs were in Brownian motion during the initial stages of the gelation. As the reaction continues, individual AuNRs are confined locally and almost lost translational motion, but still maintained rotational motion. As the reaction proceeded further, the rotation state of the AuNRs gradually changed from free rotation in 3D to restricted rotation in 2D and eventually stopped completely. The appearance of the intermediate 2D plane indicated the existence of localized anisotropic compression of the gel during the heterogeneous gelation process. Our method can be further applied to investigate the formation of different polymer gels and a wide variety of heterogeneous biophysical and soft material systems.
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Affiliation(s)
- Hua Sun
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials , Qingdao University , Qingdao , 266071 , China
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing , 100084 , China
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials , Qingdao University , Qingdao , 266071 , China
| | - Yan He
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing , 100084 , China
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16
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Cargos Rotate at Microtubule Intersections during Intracellular Trafficking. Biophys J 2019; 114:2900-2909. [PMID: 29925026 DOI: 10.1016/j.bpj.2018.05.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 04/28/2018] [Accepted: 05/04/2018] [Indexed: 11/21/2022] Open
Abstract
Intracellular cargos are transported by molecular motors along actin and microtubules, but how their dynamics depends on the complex structure of the cytoskeletal network remains unclear. In this study, we investigated this longstanding question by measuring simultaneously the rotational and translational dynamics of cargos at microtubule intersections in living cells. We engineered two-faced particles that are fluorescent on one hemisphere and opaque on the other and used their optical anisotropy to report the rotation of cargos. We show that cargos undergo brief episodes of unidirectional and rapid rotation while pausing at microtubule intersections. Probability and amplitude of the cargo rotation depend on the geometry of the intersecting filaments. The cargo rotation is not random motion due to detachment from microtubules, as revealed by statistical analyses of the translational and rotational dynamics. Instead, it is an active rotation driven by motor proteins. Although cargos are known to pause at microtubule intersections, this study reveals a different dimension of dynamics at this seemingly static state and, more importantly, provides direct evidence showing the correlation between cargo rotation and the geometry of underlying microtubule intersections.
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17
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Zhang X, Kong C, Liu Q, Zuo X, Li K, Chen Z. Colorimetric adenosine assay based on the self-assembly of aptamer-functionalized gold nanorods. Mikrochim Acta 2019; 186:587. [PMID: 31363856 DOI: 10.1007/s00604-019-3680-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/07/2019] [Indexed: 11/26/2022]
Abstract
A colorimetric method is presented for ultrasensitive determination of adenosine. The assay is based on side-by-side self-assembly of aptamer-functionalized gold nanorods (Au NRs). It relies on the fact that the conjugation of the helper DNA predominantly occurs at the terminal ends of the Au NRs rather than at their sides. The adenosine aptamers consist of two pieces of ssDNA (termed C1 and C2) that were individually attached to the sides of Au NRs. In the presence of adenosine, it will be captured by C1 and C2 to form a stable sandwich structure. As a result, a side-to-side assembly of the Au NRs occurs. If the adenosine concentration is increased, the absorbance of the Au NRs at 742 nm gradually decreases, and the color changes from brick red to dark brown. Response is linear range in the 10 pM to 5 nM adenosine concentration range, and the detection limit is as low as 3.3 pM. Adenosine analogues such as uridine and cytidine do not interfere. The method was used to quantify adenosine in serum samples at concentrations as low as 10 pM. Graphical abstractSchematic representation of an effective colorimetric method for adenosine detection based on target adenosine-induced side-by-side self-assembly of gold nanorods (Au NRs).
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Affiliation(s)
- Xin Zhang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Caiyun Kong
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Qingyun Liu
- College of Chemistry and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266510, China
| | - Xia Zuo
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Kai Li
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Zhengbo Chen
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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18
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Pan Q, Zhao H, Lin X, He Y. Spatiotemporal Heterogeneity of Reactions in Solution Observed with High‐Speed Single‐Nanorod Rotational Sensing. Angew Chem Int Ed Engl 2019; 58:8389-8393. [DOI: 10.1002/anie.201901550] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Qi Pan
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
| | - Hansen Zhao
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
| | - Xijian Lin
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
| | - Yan He
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
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19
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He L, Li Y, Wei L, Ye Z, Liu H, Xiao L. Correlation between the translational and rotational diffusion of rod-shaped nanocargo on a lipid membrane revealed by single-particle tracking. NANOSCALE 2019; 11:10080-10087. [PMID: 31089641 DOI: 10.1039/c9nr01964b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Revealing the diffusion dynamics of nanoparticles on a lipid membrane plays an important role in a better understanding of the cellular translocation process and provides a theoretical basis for the rational design of delivery cargo. However, most studies focus on the investigation of the positional fluctuations of the nanocargo on the fluidic membrane, ignoring the contribution from orientational variation. In particular, less is known about the correlation between the rotational freedom and translational movability of a particle surveying a lipid membrane. In this work, the ligand-receptor interaction (by using streptavidin (SA) and biotin as the model)-modulated diffusion dynamics of rod-shaped nanocargo (i.e., gold nanorods, GNRs) on an artificial lipid membrane was explored with dark-field (DF) optical microscopy. A correlation between translational and rotational motion was observed whereby the freedom of rotational motion could be released intermittently. The conformational entropy release is usually associated with the promotion of translational diffusion, where large step surveying on the lipid membrane takes place subsequently. These new messages might afford valuable kinetic information for the design of nanocargo with appropriate surface functionality to achieve satisfactory cellular uptake efficiency.
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Affiliation(s)
- Liangna He
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yiliang Li
- Department of Rehabilitation Medicine, The Affiliated Baoan Hospital of Southern Medical University, The Second Affiliated Hospital of Shenzhen University, The People's Hospital of Baoan Shenzhen, Shenzhen, 510530, China
| | - Lin Wei
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410082, China
| | - Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Hua Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China.
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20
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Liu H, Ye Z, Wang X, Wei L, Xiao L. Molecular and living cell dynamic assays with optical microscopy imaging techniques. Analyst 2019; 144:859-871. [PMID: 30444498 DOI: 10.1039/c8an01420e] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Generally, the message elucidated by the conventional analytical methods overlooks the heterogeneity of single objects, where the behavior of individual molecules is shielded. With the advent of optical microscopy imaging techniques, it is possible to identify, visualize and track individual molecules or nanoparticles under a biological environment with high temporal and spatial resolution. In this work, we summarize the commonly adopted optical microscopy techniques for bio-analytical assays in living cells, including total internal reflection fluorescence microscopy (TIRFM), super-resolution optical microscopy (SRM), and dark-field optical microscopy (DFM). The basic principles of these methods and some recent interesting applications in molecular detection and single-particle tracking are introduced. Moreover, the development in high-dimensional optical microscopy to achieve three-dimensional (3-D) as well as sub-diffraction localization and tracking of biomolecules is also highlighted.
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Affiliation(s)
- Hua Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, 300071, China.
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21
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Pan Q, Zhao H, Lin X, He Y. Spatiotemporal Heterogeneity of Reactions in Solution Observed with High‐Speed Single‐Nanorod Rotational Sensing. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qi Pan
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
| | - Hansen Zhao
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
| | - Xijian Lin
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
| | - Yan He
- Department of ChemistryKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Tsinghua University Beijing 100084 China
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22
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Real-time observation of dynamic heterogeneity of gold nanorods on plasma membrane with darkfield microscopy. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9444-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Revealing transient events of molecular recognition via super-localization imaging of single-particle motion. Sci Rep 2019; 9:4870. [PMID: 30890738 PMCID: PMC6424965 DOI: 10.1038/s41598-019-41239-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 03/03/2019] [Indexed: 11/09/2022] Open
Abstract
Molecular recognition plays an important role in biological systems and relates to a wide range of applications in disease diagnostics and therapeutics. Studies based on steady state or ensemble analysis may mask critical dynamic information of single recognition events. Here we report a study of monitoring the transient molecular recognition via single particle motion. We utilized a super-localization imaging methodology, to comprehensively evaluate the rotational Brownian motion of a single nanoparticle in spatial-temporal-frequential domain, with a spatial accuracy ~20 nm and a temporal resolution of ~10 ms. The transient moment of molecular encountering was captured and different binding modes were discriminated. We observed that the transient recognition events were not static states of on or off, but stochastically undergoes dynamical transformation between different binding modes. This study improves our understanding about the dynamic nature of molecular recognition events beyond the ensemble characterization via binding constant.
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24
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Tracking the rotation of single CdS nanorods during photocatalysis with surface plasmon resonance microscopy. Proc Natl Acad Sci U S A 2019; 116:6630-6634. [PMID: 30872472 PMCID: PMC6452698 DOI: 10.1073/pnas.1820114116] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Rotational dynamics of anisotropic nanomaterials reveals and regulates their behaviors and functions in diverse fields ranging from nanomotors, biomechanics, and enzymatic catalysis to microrheology. An optical imaging technique that is suitable for all kinds of anisotropic nanoobjects, regardless of its inherent optical property, is thus highly desirable and it is yet to be demonstrated. In the present work, by taking a nonfluorescent and nonplasmonic CdS nanorod as an example, we demonstrate the capability of a recently developed surface plasmon resonance microscopy for determining the orientation of single anisotropic nanomaterials with arbitrary chemical composition and morphology. While rotational dynamics of anisotropic nanoobjects has often been limited in plasmonic and fluorescent nanomaterials, here we demonstrate the capability of a surface plasmon resonance microscopy (SPRM) to determine the orientation of all kinds of anisotropic nanomaterials. By taking CdS nanorods as an example, it was found that two-dimensional Fourier transform of the asymmetrical wave-like SPRM image resulted in a peak in its angular spectrum in k space. Consistency between the peak angle and the geometrical orientation of the nanorod was validated by both in situ scanning electron microscope characterizations and theoretical calculations. Real-time monitoring of the rotational dynamics of single CdS nanorods further revealed the accelerated rotation under appropriate reaction conditions for photocatalyzed hydrogen generation. The driving force was attributed to the asymmetric production of hydrogen molecules as a result of inhomogeneous distribution of reactive sites within the nanorod. The present work not only builds the experimental and theoretical connections between the orientation of anisotropic nanomaterials and its SPRM images; the general suitability of SPRM also sheds light on broad types of nonfluorescent and nonplasmonic anisotropic nanoobjects from semiconductors to bacteria and viruses.
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25
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Recent advances in optical microscopic methods for single-particle tracking in biological samples. Anal Bioanal Chem 2019; 411:4445-4463. [PMID: 30790020 DOI: 10.1007/s00216-019-01638-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 12/20/2018] [Accepted: 01/23/2019] [Indexed: 12/31/2022]
Abstract
With the rapid development of optical microscopic techniques, explorations on the chemical and biological properties of target objects in biological samples at single-molecule/particle level have received great attention recently. In the past decades, various powerful techniques have been developed for single-particle tracking (SPT) in biological samples. In this review, we summarize the commonly used optical microscopic methods for SPT, such as total internal reflection fluorescence microscopy (TIRFM), super-resolution fluorescence microscopy (SRM), dark-field optical microscopy (DFM), total internal reflection scattering microscopy (TIRSM), and differential interference contrast microscopy (DICM). We then discuss the image processing and data analysis methods, including particle localization, trajectory reconstruction, and diffusion behavior analysis. The application of SPT on the cell membrane, within the cell, and the cellular invading process of viruses are introduced. Finally, the challenges and prospects of optical microscopic technologies for SPT are delineated.
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26
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Observation of the linewidth broadening of single spins in diamond nanoparticles in aqueous fluid and its relation to the rotational Brownian motion. Sci Rep 2018; 8:14773. [PMID: 30283007 PMCID: PMC6170451 DOI: 10.1038/s41598-018-33041-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 09/18/2018] [Indexed: 11/08/2022] Open
Abstract
Capturing the fast rotational motion of single nanoparticles has been hindered owing to the difficulty of acquiring directional information under the optical diffraction limit. Here, we report the linewidth broadening of the electron spin resonance of single nitrogen vacancy (NV) centers that matches the rotational diffusion constant of the host nanodiamonds. When nanodiamonds are gradually detached from the substrates that they were fixed to, their optically detected spin resonance peaks are broadened by 1.8 MHz, which corresponds to the rotational diffusion constant of nanoparticles with a diameter of 11.4 nm from the Einstein–Smoluchowski relation.
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27
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Chakkarapani SK, Sun Y, Lee S, Fang N, Kang SH. Three-Dimensional Orientation of Anisotropic Plasmonic Aggregates at Intracellular Nuclear Indentation Sites by Integrated Light Sheet Super-Resolution Microscopy. ACS NANO 2018; 12:4156-4163. [PMID: 29578326 DOI: 10.1021/acsnano.8b00025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Three-dimensional (3D) orientations of individual anisotropic plasmonic nanoparticles in aggregates were observed in real time by integrated light sheet super-resolution microscopy ( iLSRM). Asymmetric light scattering of a gold nanorod (AuNR) was used to trigger signals based on the polarizer angle. Controlled photoswitching was achieved by turning the polarizer and obtaining a series of images at different polarization directions. 3D subdiffraction-limited super-resolution images were obtained by superlocalization of scattering signals as a function of the anisotropic optical properties of AuNRs. Varying the polarizer angle allowed resolution of the orientation of individual AuNRs. 3D images of individual nanoparticles were resolved in aggregated regions, resulting in as low as 64 nm axial resolution and 28 nm spatial resolution. The proposed imaging setup and localization approach demonstrates a convenient method for imaging under a noisy environment where the majority of scattering noise comes from cellular components. This integrated 3D iLSRM and localization technique was shown to be reliable and useful in the field of 3D nonfluorescence super-resolution imaging.
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Affiliation(s)
- Suresh Kumar Chakkarapani
- Department of Chemistry, Graduate School , Kyung Hee University , Yongin-si , Gyeonggi-do 17104 , Republic of Korea
| | - Yucheng Sun
- Department of Chemistry, Graduate School , Kyung Hee University , Yongin-si , Gyeonggi-do 17104 , Republic of Korea
| | - Seungah Lee
- Department of Applied Chemistry and Institute of Natural Sciences , Kyung Hee University , Yongin-si , Gyeonggi-do 17104 , Republic of Korea
| | - Ning Fang
- Department of Chemistry , Georgia State University , Atlanta , Georgia 30303 , United States
| | - Seong Ho Kang
- Department of Chemistry, Graduate School , Kyung Hee University , Yongin-si , Gyeonggi-do 17104 , Republic of Korea
- Department of Applied Chemistry and Institute of Natural Sciences , Kyung Hee University , Yongin-si , Gyeonggi-do 17104 , Republic of Korea
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28
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Li J, Jiao Y, Liu Q, Chen Z. The aptamer-thrombin-aptamer sandwich complex-bridged gold nanoparticle oligomers for high-precision profiling of thrombin by dark field microscopy. Anal Chim Acta 2018; 1028:66-76. [PMID: 29884355 DOI: 10.1016/j.aca.2018.04.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/18/2018] [Indexed: 10/17/2022]
Abstract
We present a simple and efficient colorimetric assay strategy for ultrasensitive visual detection of human α-thrombin, which is essentially based on the formation of the DNA1-thrombin-DNA2 sandwich complex-bridged gold nanoparticle (Au NP) oligomers. Unlike the traditional colorimetric sensing strategies which induced the nanoparticle aggregates with uncontrolled aggregate size. In this work, the DNA1with rich G bases was firstly conjugated on the surfaces of Au NPs fixed on the hexadecyl trimethylammonium bromide (CTAB)-coated glass slide, and thrombin was captured by the DNA1. Then, the other DNA2 with rich G bases interacted with the former DNA1-thrombin complex and formed a DNA1-thrombin-DNA2 sandwich complex. The subsequently added Au NPs can be bound to the Au NP-DNA1-thrombin-DNA2 via Au-S bond to trigger the formation of Au NP oligomers, an apparent color change of the single Au NPs from green to yellow and red was observed under dark field microscopy. By measuring the intensity change of the yellow and red Au NPs, the concentration of target thrombin could be accurately quantified. As a proof of concept experiment, the formation of Au NP oligomers resulted in significantly improved sensitivity (10 fM of limit of detection and 20 fM of limit of quantity) and wider linear dynamic range of thrombin detection (20 fM-20 nM), the relative standard deviation (RSD) was less than 5.73% (n = 5). In addition, in order to validate the potential application in clinical diagnosis, the content of thrombin in a human serum samples was also quantified.
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Affiliation(s)
- Jingjing Li
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yunfei Jiao
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Qingyun Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Zhengbo Chen
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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29
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Molaei M, Atefi E, Crocker JC. Nanoscale Rheology and Anisotropic Diffusion Using Single Gold Nanorod Probes. PHYSICAL REVIEW LETTERS 2018; 120:118002. [PMID: 29601731 DOI: 10.1103/physrevlett.120.118002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 01/04/2018] [Indexed: 05/04/2023]
Abstract
The complex rotational and translational Brownian motion of anisotropic particles depends on their shape and the viscoelasticity of their surroundings. Because of their strong optical scattering and chemical versatility, gold nanorods would seem to provide the ultimate probes of rheology at the nanoscale, but the suitably accurate orientational tracking required to compute rheology has not been demonstrated. Here we image single gold nanorods with a laser-illuminated dark-field microscope and use optical polarization to determine their three-dimensional orientation to better than one degree. We convert the rotational diffusion of single nanorods in viscoelastic polyethylene glycol solutions to rheology and obtain excellent agreement with bulk measurements. Extensions of earlier models of anisotropic translational diffusion to three dimensions and viscoelastic fluids give excellent agreement with the observed motion of single nanorods. We find that nanorod tracking provides a uniquely capable approach to microrheology and provides a powerful tool for probing nanoscale dynamics and structure in a range of soft materials.
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Affiliation(s)
- Mehdi Molaei
- Chemical and Biomolecular Engineering, University of Pennsylvania, 220 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
| | - Ehsan Atefi
- Chemical and Biomolecular Engineering, University of Pennsylvania, 220 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
| | - John C Crocker
- Chemical and Biomolecular Engineering, University of Pennsylvania, 220 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
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30
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Gao Y, Anthony SM, Yi Y, Li W, Yu Y, Yu Y. Single-Janus Rod Tracking Reveals the "Rock-and-Roll" of Endosomes in Living Cells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1151-1158. [PMID: 28946746 DOI: 10.1021/acs.langmuir.7b02804] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Endosomes in cells are known to move directionally along microtubules, but their rotational dynamics have rarely been investigated. Even less is known, specifically, about the rotation of nonspherical endosomes. Here we report a single-Janus rod rotational tracking study to reveal the rich rotational dynamics of rod-shaped endosomes in living cells. The rotational reporters were Janus rods that display patches of different fluorescent colors on opposite sides along their long axes. When the Janus rods are wrapped tightly inside endosomes, their shape and optical anisotropy allow the simultaneous measurements of all three rotational angles (in-plane, out-of-plane, and longitudinal) and the translational motion of single endosomes with high spatiotemporal resolutions. We demonstrate that endosomes undergo in-plane rotation and rolling during intracellular transport and that such rotational dynamics are driven by rapid microtubule fluctuations. We reveal for the first time the "rock-and-roll" of endosomes in living cells and how the intracellular environment modifies such rotational dynamics. This study demonstrates a unique application of Janus particles as imaging probes in the elucidation of fundamental biological questions.
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Affiliation(s)
- Yuan Gao
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Stephen M Anthony
- Department of Bioenergy and Defense Technology, Sandia National Laboratories , Albuquerque, New Mexico 87123, United States
| | - Yi Yi
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Wenqian Li
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Yanqi Yu
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - Yan Yu
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
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31
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Ye Z, Wei L, Zeng X, Weng R, Shi X, Wang N, Chen L, Xiao L. Background-Free Imaging of a Viral Capsid Proteins Coated Anisotropic Nanoparticle on a Living Cell Membrane with Dark-Field Optical Microscopy. Anal Chem 2017; 90:1177-1185. [PMID: 29243478 DOI: 10.1021/acs.analchem.7b03762] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Exploring the diffusion dynamics of a viral capsid proteins (VCP)-functionalized nanocarrier on a living cell membrane could provide much kinetic information for the better understanding of their biological functionality. Gold nanoparticles are an excellent core material of nanocarriers because of the good biocompatibility as well as versatile surface chemistry. However, due to the strong scattering background from subcellular organelles, it is a grand challenge to selectively image an individual nanocarrier on a living cell membrane. In this work, we demonstrated a convenient strategy to effectively screen the scattering background from living cells for single-particle imaging with a polarization-resolved dual-channel imaging module. By taking advantage of the polarization of anisotropic gold nanoparticles (gold nanorods, GNRs), the signals from cell components could be counteracted after subtracting the sequential images one by one, while those transiently rotating GNRs on the cell membrane still exist in the processed image. In contrast to the previously reported methods, this method does not require a complicated optical setup alignment and sophisticated digital image analysis process. According to the single-particle imaging results, the majority of VCP-GNRs were anchoring on the cell membrane with confined diffusion. Interestingly, on further inspection of the diffusion trajectories, the particles displayed anomalous confined diffusion with randomly distributed large walking steps during the whole track. Non-Gaussian step distribution was noted, indicating heterogeneous binding and desorption processes on the cell membrane. As a consequence of the robust background screening capability, this approach would find broad applications for single-particle imaging under a noisy environment, e.g., living cells.
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Affiliation(s)
- Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Lin Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha, 410081, China
| | - Xuyao Zeng
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Rui Weng
- Key Laboratory of Agro-food Safety and Quality of Ministry of Agriculture, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences , Beijing, 100081, China
| | - Xingbo Shi
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University , Changsha 410128, China
| | - Naidong Wang
- College of Veterinary Medicine, Hunan Agricultural University , Changsha, 410128, China
| | - Langxing Chen
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China.,Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha, 410081, China
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32
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Lee SY, Han Y, Hong JW, Ha JW. Single gold bipyramids with sharp tips as sensitive single particle orientation sensors in biological studies. NANOSCALE 2017; 9:12060-12067. [PMID: 28795734 DOI: 10.1039/c7nr03969g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Plasmonic gold bipyramids (AuBPs) with sharp tips are promising orientation probes in biological studies because of their anisotropic shape, strong electric field enhancement at the tips, and convenient manipulation into other shapes. Herein, we elucidate the optical properties of single AuBPs at their localized surface plasmon resonance (LSPR) wavelengths using dark-field (DF) microscopy and differential interference contrast (DIC) microscopy and test their use as orientation probes in a dynamic biological environment. Characteristic scattering field distributions together with a simulation study allowed us to achieve the high-throughput determination of the 3D orientation of single AuBPs within a single frame using defocused DF microscopy. We further present the polarization-dependent, periodic DIC images and intensities of single AuBPs at their LSPR wavelengths with high sensitivity. Finally, we successfully tracked the real-time rotational motions of transferrin-modified AuBPs on live cell membranes using DIC microscopy. Therefore, these results support the use of single AuBPs as sensitive orientation probes in dynamic biological studies using DIC microscopy.
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Affiliation(s)
- So Young Lee
- Department of Chemistry, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea.
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33
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Gao Y, Yu Y, Sanchez L, Yu Y. Seeing the unseen: Imaging rotation in cells with designer anisotropic particles. Micron 2017; 101:123-131. [PMID: 28711013 DOI: 10.1016/j.micron.2017.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 07/06/2017] [Accepted: 07/06/2017] [Indexed: 01/27/2023]
Abstract
Cellular functions are enabled by cascades of transient biological events. Imaging and tracking the dynamics of these events have proven to be a powerful means of understanding the principles of cellular processes. These studies have typically focused on translational dynamics. By contrast, investigations of rotational dynamics have been scarce, despite emerging evidence that rotational dynamics are an inherent feature of many cellular processes and may also provide valuable clues to understanding those cell functions. Such studies have been impeded by the limited availability of suitable rotational imaging probes. This has recently changed thanks to the advances in the development of anisotropic particles for rotational imaging. In this review, we will summarize current techniques for imaging rotation using particle probes that are anisotropic in shape or optical properties. We will highlight two studies that demonstrate how these techniques can be applied to explore important facets of cellular functions.
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Affiliation(s)
- Yuan Gao
- Department of Chemistry, Indiana University, Bloomington, IN 47405, United States
| | - Yanqi Yu
- Department of Chemistry, Indiana University, Bloomington, IN 47405, United States
| | - Lucero Sanchez
- Department of Chemistry, Indiana University, Bloomington, IN 47405, United States
| | - Yan Yu
- Department of Chemistry, Indiana University, Bloomington, IN 47405, United States.
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34
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Zhao F, Chen K, Dong B, Yang K, Gu Y, Fang N. Localization accuracy of gold nanoparticles in single particle orientation and rotational tracking. OPTICS EXPRESS 2017; 25:9860-9871. [PMID: 28468365 PMCID: PMC5462070 DOI: 10.1364/oe.25.009860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/13/2017] [Accepted: 04/14/2017] [Indexed: 06/07/2023]
Abstract
The Single Particle Orientation and Rotational Tracking (SPORT) technique, which utilizes anisotropic plasmonic gold nanorods and differential interference contrast (DIC) microscopy, has shown potential as an effective alternative to fluorescence-based techniques to decipher rotational motions on the cellular and molecular levels. However, localizing gold nanorods from their DIC images with high accuracy and precision is more challenging than the procedures applied in fluorescence or scattering microscopy techniques due to the asymmetric DIC point spread function with bright and dark parts superimposed over a grey background. In this paper, localization accuracy and inherited uncertainties from unique DIC image patterns are elucidated with the assistance of computer simulation. These discussions provide guidance for researchers to properly evaluate their data and avoid making claims beyond the technical limits. The understanding of the intrinsic localization errors and the principle of DIC microscopy leads us to propose a new localization strategy that utilizes the experimentally-measured shear distance of the DIC microscope to improve the localization accuracy.
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Affiliation(s)
- Fei Zhao
- Department of Chemistry, Georgia State University, Atlanta, Georgia, 30303,
USA
| | - Kuangcai Chen
- Department of Chemistry, Georgia State University, Atlanta, Georgia, 30303,
USA
| | - Bin Dong
- Department of Chemistry, Georgia State University, Atlanta, Georgia, 30303,
USA
| | - Kai Yang
- Center for Soft Condensed Matter Physics & Interdisciplinary Research, Soochow University, Suzhou, Jiangsu, China, 215006,
USA
| | - Yan Gu
- The Bristol-Myers Squibb Company, Devens, Massachusetts, USA 01434,
USA
| | - Ning Fang
- Department of Chemistry, Georgia State University, Atlanta, Georgia, 30303,
USA
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35
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Kim GW, Lee SY, Ha JW. Three-dimensional defocused orientation sensing of single bimetallic core-shell gold nanorods as multifunctional optical probes. Analyst 2017; 142:899-903. [PMID: 28252116 DOI: 10.1039/c6an02280d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bimetallic core-shell gold nanorods (AuNRs) are promising multifunctional orientation probes that can be employed in biological and physical studies. This paper presents the optical properties of single AuNRs coated with palladium (Pd) and platinum (Pt) under scattering-based dark-field (DF) microscopy. Strong longitudinal plasmon damping was observed for the bimetallic AuNRs due to Pd and Pt metals on the AuNR surface. Despite the strong plasmon damping, the bimetallic AuNRs yielded characteristic doughnut-shaped scattering patterns under defocused DF microscopy. Interestingly, a solid bright spot appeared at the center of the defocused scattering patterns due to strong damping in the longitudinal plasmon and the increased contribution from the transverse dipoles to the image patterns, which was verified further by a simulation study. Furthermore, the defocused scattering field distributions enabled a determination of the three-dimensional (3D) orientations of single bimetallic AuNRs through a pattern-match analysis technique without angular degeneracy. Therefore, deeper insight into the optical properties and defocused scattering patterns of single bimetallic AuNRs is provided, which can be used to develop multifunctional optical probes that are capable of sensing of the 3D orientation of a probe, biomolecules based on LSPR shift, gas and humidity, etc.
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Affiliation(s)
- Geun Wan Kim
- Advanced Nano Bio Imaging and Spectroscopy (ANBIS) Laboratory, Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, South Korea.
| | - So Young Lee
- Advanced Nano Bio Imaging and Spectroscopy (ANBIS) Laboratory, Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, South Korea.
| | - Ji Won Ha
- Advanced Nano Bio Imaging and Spectroscopy (ANBIS) Laboratory, Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, South Korea.
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36
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Abstract
In this mini review, we will provide a brief introduction focusing on the current applications of single plasmonic nanoparticle-based sensors using DFM, including the detection of molecules, the real-time monitoring of chemical/electrochemical reactions and the imaging of living cells.
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Affiliation(s)
- Tao Xie
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P.R. China
| | - Chao Jing
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P.R. China
- Physik-Department E20 Technische Universität München
| | - Yi-Tao Long
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P.R. China
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37
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KIM GW, HA JW. Platinum-coated Core-Shell Gold Nanorods as Multifunctional Orientation Sensors in Differential Interference Contrast Microscopy. ANAL SCI 2017; 33:1021-1025. [DOI: 10.2116/analsci.33.1021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Geun Wan KIM
- Advanced Nano Bio Imaging and Spectroscopy (ANBIS) Laboratory, Department of Chemistry, University of Ulsan
| | - Ji Won HA
- Advanced Nano Bio Imaging and Spectroscopy (ANBIS) Laboratory, Department of Chemistry, University of Ulsan
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38
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Wei L, Ye Z, Xu Y, Chen B, Yeung ES, Xiao L. Single Particle Tracking of Peptides-Modified Nanocargo on Lipid Membrane Revealing Bulk-Mediated Diffusion. Anal Chem 2016; 88:11973-11977. [DOI: 10.1021/acs.analchem.6b03420] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lin Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Zhongju Ye
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yueling Xu
- College
of Chemistry, Nankai University, Tianjin, 300071, China
| | - Bo Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Edward S. Yeung
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Lehui Xiao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
- College
of Chemistry, Nankai University, Tianjin, 300071, China
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39
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Luo W, Wu M, Li S, Xu Y, Ye Z, Wei L, Chen B, Xu QH, Xiao L. Nanoprecipitation of Fluorescent Conjugated Polymer onto the Surface of Plasmonic Nanoparticle for Fluorescence/Dark-Field Dual-Modality Single Particle Imaging. Anal Chem 2016; 88:6827-35. [DOI: 10.1021/acs.analchem.6b01350] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wenjuan Luo
- College
of Chemistry, Nankai Univeristy, Tianjin, 300071, China
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410082, China
| | - Ming Wu
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510641, China
| | - Shuang Li
- State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510641, China
- Department
of Chemistry, National University of Singapore, 117543, Singapore
| | - Yueling Xu
- College
of Chemistry, Nankai Univeristy, Tianjin, 300071, China
| | - Zhongju Ye
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410082, China
| | - Lin Wei
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410082, China
| | - Bo Chen
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410082, China
| | - Qing-Hua Xu
- Department
of Chemistry, National University of Singapore, 117543, Singapore
| | - Lehui Xiao
- College
of Chemistry, Nankai Univeristy, Tianjin, 300071, China
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40
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Neupane B, Chen F, Wei Y, Fang N, Ligler FS, Wang G. Nanosecond Time-Resolution Study of Gold Nanorod Rotation at the Liquid-Solid Interface. Chemphyschem 2016; 17:2218-24. [DOI: 10.1002/cphc.201600174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Indexed: 01/31/2023]
Affiliation(s)
- Bhanu Neupane
- Department of Biomedical Engineering; University of North Carolina at Chapel Hill and North Carolina State University; Raleigh NC 27599-7115 USA
- Department of Chemistry; North Carolina State University; Raleigh NC 27695-8204 USA
- Kathmandu Institute of Applied Sciences; Kathmandu Nepal
| | - Fang Chen
- Department of Chemistry; North Carolina State University; Raleigh NC 27695-8204 USA
| | - Yanli Wei
- Department of Chemistry; North Carolina State University; Raleigh NC 27695-8204 USA
| | - Ning Fang
- Department of Chemistry; Georgia State University; Atlanta GA 30303 USA
| | - Frances S. Ligler
- Department of Biomedical Engineering; University of North Carolina at Chapel Hill and North Carolina State University; Raleigh NC 27599-7115 USA
| | - Gufeng Wang
- Department of Chemistry; North Carolina State University; Raleigh NC 27695-8204 USA
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41
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Ji QJ, Yuan B, Lu XM, Yang K, Ma YQ. Controlling the Nanoscale Rotational Behaviors of Nanoparticles on the Cell Membranes: A Computational Model. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:1140-1146. [PMID: 26436946 DOI: 10.1002/smll.201501885] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 08/02/2015] [Indexed: 06/05/2023]
Abstract
Nanoparticles prefer to bind to a membrane with a surface coated by short or rigid ligands, as shown by computer simulations. To realize such a preferred configuration, the nanoparticle can spontaneously spin itself on the membrane surface, no matter what its initial orientation is.
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Affiliation(s)
- Qiu-Ju Ji
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, China
| | - Bing Yuan
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, China
| | - Xue-Mei Lu
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, China
| | - Kai Yang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, China
| | - Yu-Qiang Ma
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou, 215006, China
- Collaborative Innovation Center of Advanced Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, China
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42
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Wei L, Xu J, Ye Z, Zhu X, Zhong M, Luo W, Chen B, Duan H, Liu Q, Xiao L. Orientational Imaging of a Single Gold Nanorod at the Liquid/Solid Interface with Polarized Evanescent Field Illumination. Anal Chem 2016; 88:1995-9. [DOI: 10.1021/acs.analchem.5b04695] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Lin Wei
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410082, People’s Republic of China
| | - Jianghong Xu
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410082, People’s Republic of China
| | - Zhongju Ye
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410082, People’s Republic of China
| | - Xupeng Zhu
- School
of Physics and Electronics, Hunan University, Changsha, Hunan 410082, People’s Republic of China
| | - Meile Zhong
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410082, People’s Republic of China
| | - Wenjuan Luo
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410082, People’s Republic of China
| | - Bo Chen
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410082, People’s Republic of China
| | - Huigao Duan
- School
of Physics and Electronics, Hunan University, Changsha, Hunan 410082, People’s Republic of China
| | - Quanhui Liu
- School
of Physics and Electronics, Hunan University, Changsha, Hunan 410082, People’s Republic of China
| | - Lehui Xiao
- Dynamic Optical Microscopic Imaging Laboratory, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410082, People’s Republic of China
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43
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Lee SY, Ha JW. Characterizing the optical properties of single palladium-coated core–shell gold nanorods as multifunctional orientation probes. Phys Chem Chem Phys 2016; 18:32682-32685. [DOI: 10.1039/c6cp07280a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bimetallic core–shell gold nanorods are promising multifunctional orientation probes due to the synergetic effect of two different metals, as examined under an optical microscope.
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Affiliation(s)
- So Young Lee
- Advanced Nano Bio Imaging and Spectroscopy (ANBIS) Laboratory
- Department of Chemistry
- University of Ulsan
- Ulsan 44610
- South Korea
| | - Ji Won Ha
- Advanced Nano Bio Imaging and Spectroscopy (ANBIS) Laboratory
- Department of Chemistry
- University of Ulsan
- Ulsan 44610
- South Korea
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44
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Ha JW. Characteristic image patterns of single anisotropic plasmonic nanoparticles embedded in a gel matrix. NANOSCALE 2015; 7:13159-13163. [PMID: 26186263 DOI: 10.1039/c5nr03847b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present characteristic doughnut-shaped image patterns of gold nanorods embedded in a thin layer of a gel matrix observed under a dark-field microscope. The characteristic scattering field distributions allow us to estimate the spatial orientation of single gold nanorods. The measured scattering patterns are further verified by a simulation study.
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Affiliation(s)
- Ji Won Ha
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 680-749, Republic of Korea.
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45
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Enoki S, Iino R, Niitani Y, Minagawa Y, Tomishige M, Noji H. High-speed angle-resolved imaging of a single gold nanorod with microsecond temporal resolution and one-degree angle precision. Anal Chem 2015; 87:2079-86. [PMID: 25647635 DOI: 10.1021/ac502408c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We developed two types of high-speed angle-resolved imaging methods for single gold nanorods (SAuNRs) using objective-type vertical illumination dark-field microscopy and a high-speed CMOS camera to achieve microsecond temporal and one-degree angle resolution. These methods are based on: (i) an intensity analysis of focused images of SAuNR split into two orthogonally polarized components and (ii) the analysis of defocused SAuNR images. We determined the angle precision (statistical error) and accuracy (systematic error) of the resultant SAuNR (80 nm × 40 nm) images projected onto a substrate surface (azimuthal angle) in both methods. Although both methods showed a similar precision of ∼1° for the azimuthal angle at a 10 μs temporal resolution, the defocused image analysis showed a superior angle accuracy of ∼5°. In addition, the polar angle was also determined from the defocused SAuNR images with a precision of ∼1°, by fitting with simulated images. By taking advantage of the defocused image method's full revolution measurement range in the azimuthal angle, the rotation of the rotary molecular motor, F1-ATPase, was measured with 3.3 μs temporal resolution. The time constants of the pauses waiting for the elementary steps of the ATP hydrolysis reaction and the torque generated in the mechanical steps have been successfully estimated. The high-speed angle-resolved SAuNR imaging methods will be applicable to the monitoring of the fast conformational changes of many biological molecular machines.
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Affiliation(s)
- Sawako Enoki
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo , Tokyo 113-8656, Japan
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46
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Lee S, Park G, Chakkarapani SK, Kang SH. Ultra-sensitive plasmonic nanometal scattering immunosensor based on optical control in the evanescent field layer. Biosens Bioelectron 2015; 63:444-449. [DOI: 10.1016/j.bios.2014.07.071] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 07/21/2014] [Accepted: 07/25/2014] [Indexed: 11/30/2022]
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47
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Dong RY, Cao BY. Superhigh-speed unidirectional rotation of a carbon nanotube in a sheared fluid and its decoupled dynamics. RSC Adv 2015. [DOI: 10.1039/c5ra18901b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The shear induced rotational motion of a carbon nanotube can be decoupled into oscillation and unidirectional rotation, which respectively originate from rotary Brownian motion and external shear.
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Affiliation(s)
- Ruo-Yu Dong
- Key Laboratory for Thermal Science and Power Engineering of Ministry of Education
- Department of Engineering Mechanics
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Bing-Yang Cao
- Key Laboratory for Thermal Science and Power Engineering of Ministry of Education
- Department of Engineering Mechanics
- Tsinghua University
- Beijing 100084
- P. R. China
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48
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Peng Y, Xiong B, Peng L, Li H, He Y, Yeung ES. Recent advances in optical imaging with anisotropic plasmonic nanoparticles. Anal Chem 2014; 87:200-15. [PMID: 25375954 DOI: 10.1021/ac504061p] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yinhe Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University , Changsha, Hunan 410082, P. R. China
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49
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Wei L, Zhou P, Yang Q, Yang Q, Ma M, Chen B, Xiao L. Fabrication of bright and small size semiconducting polymer nanoparticles for cellular labelling and single particle tracking. NANOSCALE 2014; 6:11351-11358. [PMID: 25141182 DOI: 10.1039/c4nr03293d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, we demonstrate a convenient and robust strategy for efficient fabrication of high fluorescence quantum yield (QY, 49.8 ± 3%) semiconducting polymer nanoparticles (SPNs), with size comparable with semiconductor quantum dots (Qdots). The SPNs were synthesized by co-precipitation of hydrophobic semiconducting polymer together with amphiphilic multidentate polymer. Comprehensive spectroscopic and microscopic characterizations showed that the SPNs possess superior photophysical performance, with excellent fluorescence brightness and reduced photoblinking in contrast with Qdots, as well as good photostability compared to a fluorescent protein of a similar size, phycoerythrin. More importantly, by conjugating membrane biomarkers onto the surface of SPNs, it was found that they were not only suitable for specific cellular labelling but also for single particle tracking because of the improved optical performance.
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Affiliation(s)
- Lin Wei
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, P. R. China.
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50
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Anomalous orientations of a rigid carbon nanotube in a sheared fluid. Sci Rep 2014; 4:6120. [PMID: 25134626 PMCID: PMC4137343 DOI: 10.1038/srep06120] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 07/28/2014] [Indexed: 11/08/2022] Open
Abstract
The nanoparticle orientation in fluid systems can be correlated with the rotational diffusion and is widely used to tune the physical properties of functional materials. In the current work, the controllability of the orientation of a single rigid carbon nanotube in a fluid is investigated by imposing a linear shear flow. Molecular dynamics simulations reveal three forms of anomalous behavior: (i) “Aligned orientation” when the nanotube oscillates around a particular direction which is close to the flow direction at a small angle of about 10° in the velocity-gradient plane; (ii) “Interrupted orientation” when the oscillation is interrupted by a 360° rotation now and then; (iii) “Random orientation” when 360° rotations dominate with the rotational direction coinciding with the local fluid flow direction. The orientation order is a function of the Peclet number (Pe). The results show that the correlation between Pe and the orientation order from the two-dimensional model does not apply to the three-dimensional cases, perhaps due to some anomalous behavior and cross-section effects. This work provides clear pictures of the nanoparticle movement that can be used to guide particle manipulation techniques.
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