1
|
Steves MA, He C, Xu K. Single-Molecule Spectroscopy and Super-Resolution Mapping of Physicochemical Parameters in Living Cells. Annu Rev Phys Chem 2024; 75:163-183. [PMID: 38360526 DOI: 10.1146/annurev-physchem-070623-034225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
By superlocalizing the positions of millions of single molecules over many camera frames, a class of super-resolution fluorescence microscopy methods known as single-molecule localization microscopy (SMLM) has revolutionized how we understand subcellular structures over the past decade. In this review, we highlight emerging studies that transcend the outstanding structural (shape) information offered by SMLM to extract and map physicochemical parameters in living mammalian cells at single-molecule and super-resolution levels. By encoding/decoding high-dimensional information-such as emission and excitation spectra, motion, polarization, fluorescence lifetime, and beyond-for every molecule, and mass accumulating these measurements for millions of molecules, such multidimensional and multifunctional super-resolution approaches open new windows into intracellular architectures and dynamics, as well as their underlying biophysical rules, far beyond the diffraction limit.
Collapse
Affiliation(s)
- Megan A Steves
- Department of Chemistry, University of California, Berkeley, California, USA;
| | - Changdong He
- Department of Chemistry, University of California, Berkeley, California, USA;
| | - Ke Xu
- Department of Chemistry, University of California, Berkeley, California, USA;
| |
Collapse
|
2
|
Saunders C, de Villiers CA, Stevens MM. Single Particle Chemical Characterisation of Nanoformulations for Cargo Delivery. AAPS J 2023; 25:94. [PMID: 37783923 DOI: 10.1208/s12248-023-00855-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/25/2023] [Indexed: 10/04/2023] Open
Abstract
Nanoparticles can encapsulate a range of therapeutics, from small molecule drugs to sensitive biologics, to significantly improve their biodistribution and biostability. Whilst the regulatory approval of several of these nanoformulations has proven their translatability, there remain several hurdles to the translation of future nanoformulations, leading to a high rate of candidate nanoformulations failing during the drug development process. One barrier is that the difficulty in tightly controlling nanoscale particle synthesis leads to particle-to-particle heterogeneity, which hinders manufacturing and quality control, and regulatory quality checks. To understand and mitigate this heterogeneity requires advancements in nanoformulation characterisation beyond traditional bulk methods to more precise, single particle techniques. In this review, we compare commercially available single particle techniques, with a particular focus on single particle Raman spectroscopy, to provide a guide to adoption of these methods into development workflows, to ultimately reduce barriers to the translation of future nanoformulations.
Collapse
Affiliation(s)
- Catherine Saunders
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Camille A de Villiers
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK.
- The Kavli Institute for Nanoscience Discovery, University of Oxford, Oxford, OX1 3QU, UK.
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3PT, UK.
- Institute of Biomedical Engineering, University of Oxford, Oxford, OX3 7DQ, UK.
| |
Collapse
|
3
|
Liu Y, Shahid MA, Mao H, Chen J, Waddington M, Song KH, Zhang Y. Switchable and Functional Fluorophores for Multidimensional Single-Molecule Localization Microscopy. CHEMICAL & BIOMEDICAL IMAGING 2023; 1:403-413. [PMID: 37655169 PMCID: PMC10466381 DOI: 10.1021/cbmi.3c00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/05/2023] [Accepted: 06/08/2023] [Indexed: 09/02/2023]
Abstract
Multidimensional single-molecule localization microscopy (mSMLM) represents a paradigm shift in the realm of super-resolution microscopy techniques. It affords the simultaneous detection of single-molecule spatial locations at the nanoscale and functional information by interrogating the emission properties of switchable fluorophores. The latter is finely tuned to report its local environment through carefully manipulated laser illumination and single-molecule detection strategies. This Perspective highlights recent strides in mSMLM with a focus on fluorophore designs and their integration into mSMLM imaging systems. Particular interests are the accomplishments in simultaneous multiplexed super-resolution imaging, nanoscale polarity and hydrophobicity mapping, and single-molecule orientational imaging. Challenges and prospects in mSMLM are also discussed, which include the development of more vibrant and functional fluorescent probes, the optimization of optical implementation to judiciously utilize the photon budget, and the advancement of imaging analysis and machine learning techniques.
Collapse
Affiliation(s)
- Yunshu Liu
- Molecular
Analytics and Photonics (MAP) Laboratory, Department of Textile Engineering,
Chemistry and Science, North Carolina State
University, Raleigh, North Carolina 27606, United States
| | - Md Abul Shahid
- Molecular
Analytics and Photonics (MAP) Laboratory, Department of Textile Engineering,
Chemistry and Science, North Carolina State
University, Raleigh, North Carolina 27606, United States
| | - Hongjing Mao
- Molecular
Analytics and Photonics (MAP) Laboratory, Department of Textile Engineering,
Chemistry and Science, North Carolina State
University, Raleigh, North Carolina 27606, United States
| | - Jiahui Chen
- Molecular
Analytics and Photonics (MAP) Laboratory, Department of Textile Engineering,
Chemistry and Science, North Carolina State
University, Raleigh, North Carolina 27606, United States
| | - Michael Waddington
- Molecular
Analytics and Photonics (MAP) Laboratory, Department of Textile Engineering,
Chemistry and Science, North Carolina State
University, Raleigh, North Carolina 27606, United States
| | - Ki-Hee Song
- Quantum
Optics Research Division, Korea Atomic Energy
Research Institute, Yuseong-gu, Daejeon 34057, Republic of Korea
| | - Yang Zhang
- Molecular
Analytics and Photonics (MAP) Laboratory, Department of Textile Engineering,
Chemistry and Science, North Carolina State
University, Raleigh, North Carolina 27606, United States
| |
Collapse
|
4
|
Brenner B, Sun C, Raymo FM, Zhang HF. Spectroscopic single-molecule localization microscopy: applications and prospective. NANO CONVERGENCE 2023; 10:14. [PMID: 36943541 PMCID: PMC10030755 DOI: 10.1186/s40580-023-00363-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/05/2023] [Indexed: 05/25/2023]
Abstract
Single-molecule localization microscopy (SMLM) breaks the optical diffraction limit by numerically localizing sparse fluorescence emitters to achieve super-resolution imaging. Spectroscopic SMLM or sSMLM further allows simultaneous spectroscopy and super-resolution imaging of fluorescence molecules. Hence, sSMLM can extract spectral features with single-molecule sensitivity, higher precision, and higher multiplexity than traditional multicolor microscopy modalities. These new capabilities enabled advanced multiplexed and functional cellular imaging applications. While sSMLM suffers from reduced spatial precision compared to conventional SMLM due to splitting photons to form spatial and spectral images, several methods have been reported to mitigate these weaknesses through innovative optical design and image processing techniques. This review summarizes the recent progress in sSMLM, its applications, and our perspective on future work.
Collapse
Affiliation(s)
- Benjamin Brenner
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Cheng Sun
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Françisco M Raymo
- Department of Chemistry, University of Miami, Coral Gables, FL, 33146, USA
| | - Hao F Zhang
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA.
| |
Collapse
|
5
|
Song KH, Sun C, Zhang HF. Design strategy for a dual-wedge prism imaging spectrometer in spectroscopic nanoscopy. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2023; 94:023706. [PMID: 36859048 DOI: 10.1063/5.0122692] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Spectroscopic single-molecule localization microscopy (sSMLM, or spectroscopic nanoscopy) has been established as a key tool in functional super-resolution imaging by providing spatial and spectral information of single molecules at nanoscale resolution. A recently developed dual-wedge prism (DWP) imaging spectrometer, a monolithic optical component, has broadened the accessibility of sSMLM with an improved imaging resolution of more than 40%. It also improved the system reliability by reducing the number of discrete optical components. However, achieving its optimal performance requires the comprehensive understanding of the underlying constraints of the key system parameters, such as the refractive index of the DWP, spectral dispersion (SD), axial separation for three-dimensional (3D) biplane reconstruction, and the overall dimensional constraints. In this work, we present a generalized design principle for the DWP imaging spectrometer. Specifically, we develop the theoretical framework capturing the influence of the primary design parameters, including the achievable SD and localization performance, for different design cases. It further establishes the workflow to design and optimize the DWP imaging spectrometer for better multi-color functional imaging. This will give practical guidance for users to easily design the DWP imaging spectrometer, allowing for straightforward 3D sSMLM implementation.
Collapse
Affiliation(s)
- Ki-Hee Song
- Korea Atomic Energy Research Institute, 111, Daedeok-daero 989beon-gil, Yuseong-gu, Daejeon 34057, Republic of Korea
| | - Cheng Sun
- Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - Hao F Zhang
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, USA
| |
Collapse
|
6
|
Alshawwa SZ, Kassem AA, Farid RM, Mostafa SK, Labib GS. Nanocarrier Drug Delivery Systems: Characterization, Limitations, Future Perspectives and Implementation of Artificial Intelligence. Pharmaceutics 2022; 14:883. [PMID: 35456717 PMCID: PMC9026217 DOI: 10.3390/pharmaceutics14040883] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/04/2022] [Accepted: 04/15/2022] [Indexed: 02/04/2023] Open
Abstract
There has been an increasing demand for the development of nanocarriers targeting multiple diseases with a broad range of properties. Due to their tiny size, giant surface area and feasible targetability, nanocarriers have optimized efficacy, decreased side effects and improved stability over conventional drug dosage forms. There are diverse types of nanocarriers that have been synthesized for drug delivery, including dendrimers, liposomes, solid lipid nanoparticles, polymersomes, polymer-drug conjugates, polymeric nanoparticles, peptide nanoparticles, micelles, nanoemulsions, nanospheres, nanocapsules, nanoshells, carbon nanotubes and gold nanoparticles, etc. Several characterization techniques have been proposed and used over the past few decades to control and predict the behavior of nanocarriers both in vitro and in vivo. In this review, we describe some fundamental in vitro, ex vivo, in situ and in vivo characterization methods for most nanocarriers, emphasizing their advantages and limitations, as well as the safety, regulatory and manufacturing aspects that hinder the transfer of nanocarriers from the laboratory to the clinic. Moreover, integration of artificial intelligence with nanotechnology, as well as the advantages and problems of artificial intelligence in the development and optimization of nanocarriers, are also discussed, along with future perspectives.
Collapse
Affiliation(s)
- Samar Zuhair Alshawwa
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; or
| | - Abeer Ahmed Kassem
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria 21523, Egypt; (R.M.F.); (G.S.L.)
| | - Ragwa Mohamed Farid
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria 21523, Egypt; (R.M.F.); (G.S.L.)
| | - Shaimaa Khamis Mostafa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt;
| | - Gihan Salah Labib
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria 21523, Egypt; (R.M.F.); (G.S.L.)
| |
Collapse
|
7
|
Song KH, Brenner B, Yeo WH, Kweon J, Cai Z, Zhang Y, Lee Y, Yang X, Sun C, Zhang HF. Monolithic dual-wedge prism-based spectroscopic single-molecule localization microscopy. NANOPHOTONICS 2022; 11:1527-1535. [PMID: 35873202 PMCID: PMC9307059 DOI: 10.1515/nanoph-2021-0541] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
By manipulating the spectral dispersion of detected photons, spectroscopic single-molecule localization microscopy (sSMLM) permits concurrent high-throughput single-molecular spectroscopic analysis and imaging. Despite its promising potential, using discrete optical components and managing the delicate balance between spectral dispersion and spatial localization compromise its performance, including non-uniform spectral dispersion, high transmission loss of grating, high optical alignment demands, and reduced precision. We designed a dual-wedge prism (DWP)-based monolithic imaging spectrometer to overcome these challenges. We optimized the DWP for spectrally dispersing focused beam without deviation and with minimal wavefront error. We integrated all components into a compact assembly, minimizing total transmission loss and significantly reducing optical alignment requirements. We show the feasibility of DWP using ray-tracing and numerical simulations. We validated our numerical simulations by experimentally imaging individual nanospheres and confirmed that DWP-sSMLM achieved much improved spatial and spectral precisions of grating-based sSMLM. We also demonstrated DWP-sSMLM in 3D multi-color imaging of cells.
Collapse
Affiliation(s)
- Ki-Hee Song
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Benjamin Brenner
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Wei-Hong Yeo
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Junghun Kweon
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Zhen Cai
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Yang Zhang
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Youngseop Lee
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Xusan Yang
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Cheng Sun
- Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA
| | - Hao F. Zhang
- Corresponding authors: Hao F. Zhang, Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208, USA,
| |
Collapse
|
8
|
Dhiman S, Andrian T, Gonzalez BS, Tholen MME, Wang Y, Albertazzi L. Can super-resolution microscopy become a standard characterization technique for materials chemistry? Chem Sci 2022; 13:2152-2166. [PMID: 35310478 PMCID: PMC8864713 DOI: 10.1039/d1sc05506b] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/01/2021] [Indexed: 12/20/2022] Open
Abstract
The characterization of newly synthesized materials is a cornerstone of all chemistry and nanotechnology laboratories. For this purpose, a wide array of analytical techniques have been standardized and are used routinely by laboratories across the globe. With these methods we can understand the structure, dynamics and function of novel molecular architectures and their relations with the desired performance, guiding the development of the next generation of materials. Moreover, one of the challenges in materials chemistry is the lack of reproducibility due to improper publishing of the sample preparation protocol. In this context, the recent adoption of the reporting standard MIRIBEL (Minimum Information Reporting in Bio-Nano Experimental Literature) for material characterization and details of experimental protocols aims to provide complete, reproducible and reliable sample preparation for the scientific community. Thus, MIRIBEL should be immediately adopted in publications by scientific journals to overcome this challenge. Besides current standard spectroscopy and microscopy techniques, there is a constant development of novel technologies that aim to help chemists unveil the structure of complex materials. Among them super-resolution microscopy (SRM), an optical technique that bypasses the diffraction limit of light, has facilitated the study of synthetic materials with multicolor ability and minimal invasiveness at nanometric resolution. Although still in its infancy, the potential of SRM to unveil the structure, dynamics and function of complex synthetic architectures has been highlighted in pioneering reports during the last few years. Currently, SRM is a sophisticated technique with many challenges in sample preparation, data analysis, environmental control and automation, and moreover the instrumentation is still expensive. Therefore, SRM is currently limited to expert users and is not implemented in characterization routines. This perspective discusses the potential of SRM to transition from a niche technique to a standard routine method for material characterization. We propose a roadmap for the necessary developments required for this purpose based on a collaborative effort from scientists and engineers across disciplines.
Collapse
Affiliation(s)
- Shikha Dhiman
- Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology P. O. Box 513 5600 MB Eindhoven The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Teodora Andrian
- Institute of Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology Barcelona Spain
| | - Beatriz Santiago Gonzalez
- Department of Biomedical Engineering, Institute of Complex Molecular Systems, Eindhoven University of Technology Eindhoven The Netherlands
| | - Marrit M E Tholen
- Department of Biomedical Engineering, Institute of Complex Molecular Systems, Eindhoven University of Technology Eindhoven The Netherlands
| | - Yuyang Wang
- Institute for Complex Molecular Systems, Eindhoven University of Technology P. O. Box 513 5600 MB Eindhoven The Netherlands
- Department of Applied Physics, Eindhoven University of Technology Postbus 513 5600 MB Eindhoven The Netherlands
| | - Lorenzo Albertazzi
- Institute of Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology Barcelona Spain
- Department of Biomedical Engineering, Institute of Complex Molecular Systems, Eindhoven University of Technology Eindhoven The Netherlands
| |
Collapse
|
9
|
Jeong D, Kim D. Super‐resolution fluorescence microscopy‐based single‐molecule spectroscopy. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12471] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dokyung Jeong
- Department of Chemistry Hanyang University Seoul Republic of Korea
| | - Doory Kim
- Department of Chemistry Hanyang University Seoul Republic of Korea
- Research Institute for Convergence of Basic Science, Institute of Nano Science and Technology, and Research Institute for Natural Sciences Hanyang University Seoul Republic of Korea
| |
Collapse
|
10
|
Brenner B, Song KH, Sun C, Zhang HF. Improving spatial precision and field-of-view in wavelength-tagged single-particle tracking using spectroscopic single-molecule localization microscopy. APPLIED OPTICS 2021; 60:3647-3658. [PMID: 33983297 PMCID: PMC8648066 DOI: 10.1364/ao.415275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/30/2021] [Indexed: 05/09/2023]
Abstract
Spectroscopic single-molecule localization microscopy (sSMLM) generates super-resolution images of single molecules while simultaneously capturing the spectra of their fluorescence emissions. However, sSMLM splits photons from single-molecule emissions into a spatial channel and a spectral channel, reducing both channels' precisions. It is also challenging in transmission grating-based sSMLM to achieve a large field-of-view (FOV) and avoid overlap between the spatial and spectral channels. The challenge in FOV has further significance in single-molecule tracking applications. In this work, we analyzed the correlation between the spatial and spectral channels in sSMLM to improve its spatial precision, and we developed a split-mirror assembly to enlarge its FOV. We demonstrate the benefits of these improvements by tracking quantum dots. We also show that we can reduce particle-identification ambiguity by tagging each particle with its unique spectral characteristics.
Collapse
Affiliation(s)
- Benjamin Brenner
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208, USA
| | - Ki-Hee Song
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208, USA
| | - Cheng Sun
- Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208, USA
| | - Hao F. Zhang
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, Illinois 60208, USA
| |
Collapse
|
11
|
Zhang Y, Zhang Y, Song KH, Lin W, Sun C, Schatz GC, Zhang HF. Investigating Single-Molecule Fluorescence Spectral Heterogeneity of Rhodamines Using High-Throughput Single-Molecule Spectroscopy. J Phys Chem Lett 2021; 12:3914-3921. [PMID: 33861598 PMCID: PMC8607629 DOI: 10.1021/acs.jpclett.1c00192] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We experimentally investigated several intramolecular coordinate and environmental changes as potential causes of single-molecule fluorescence spectral heterogeneities (smFSH). We developed a high-throughput single-molecule spectroscopy method to analyze more than 5000 single-molecule emission spectra from each of 9 commonly used fluorophores with different structural rigidities and deposited on substrates with different polarities. We observed an unexpectedly high smFSH from structurally rigid Rhodamine B compared with a structurally flexible Cyanine dye-Alexa Fluor 647. Based on experimentally measured smFSH, we ruled out the system's noise uncertainty, single-molecule spectral diffusion, and environmental polarity as the primary causes of the high smFSH. We found that the rotational flexibility of N,N-dialkylated groups contributed to the smFSH. With the high smFSH observed in structurally more rigid model fluorophores, we speculated that other intramolecular coordinate and environmental changes might also contribute to the high smFSH in Rhodamines.
Collapse
Affiliation(s)
- Yang Zhang
- Departments of Biomedical Engineering, Northwestern University, Evanston, IL60208, United States
- Corresponding Author:
| | - Yu Zhang
- Department of Chemistry, Northwestern University, Evanston, IL60208, United States
| | - Ki-Hee Song
- Departments of Biomedical Engineering, Northwestern University, Evanston, IL60208, United States
| | - Wei Lin
- Department of Chemistry, Northwestern University, Evanston, IL60208, United States
| | - Cheng Sun
- Department of Mechanical Engineering, Northwestern University, Evanston, IL60208, United States
| | - George C. Schatz
- Department of Chemistry, Northwestern University, Evanston, IL60208, United States
| | - Hao F. Zhang
- Departments of Biomedical Engineering, Northwestern University, Evanston, IL60208, United States
| |
Collapse
|
12
|
Davis JL, Soetikno B, Song KH, Zhang Y, Sun C, Zhang HF. RainbowSTORM: an open-source ImageJ plug-in for spectroscopic single-molecule localization microscopy (sSMLM) data analysis and image reconstruction. Bioinformatics 2021; 36:4972-4974. [PMID: 32663240 DOI: 10.1093/bioinformatics/btaa635] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/15/2020] [Accepted: 07/07/2020] [Indexed: 12/19/2022] Open
Abstract
SUMMARY Spectroscopic single-molecule localization microscopy (sSMLM) simultaneously captures the spatial locations and full spectra of stochastically emitting fluorescent single molecules. It provides an optical platform to develop new multimolecular and functional imaging capabilities. While several open-source software suites provide subdiffraction localization of fluorescent molecules, software suites for spectroscopic analysis of sSMLM data remain unavailable. RainbowSTORM is an open-source ImageJ/FIJI plug-in for end-to-end spectroscopic analysis and visualization for sSMLM images. RainbowSTORM allows users to calibrate, preview and quantitatively analyze emission spectra acquired using different reported sSMLM system designs and fluorescent labels. AVAILABILITY AND IMPLEMENTATION RainbowSTORM is a java plug-in for ImageJ (https://imagej.net)/FIJI (http://fiji.sc) freely available through: https://github.com/FOIL-NU/RainbowSTORM. RainbowSTORM has been tested with Windows and Mac operating systems and ImageJ/FIJI version 1.52. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
Collapse
Affiliation(s)
| | | | | | | | - Cheng Sun
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | | |
Collapse
|
13
|
Meyer CE, Abram SL, Craciun I, Palivan CG. Biomolecule–polymer hybrid compartments: combining the best of both worlds. Phys Chem Chem Phys 2020; 22:11197-11218. [DOI: 10.1039/d0cp00693a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent advances in bio/polymer hybrid compartments in the quest to obtain artificial cells, biosensors and catalytic compartments.
Collapse
Affiliation(s)
| | | | - Ioana Craciun
- Department of Chemistry
- University of Basel
- Basel
- Switzerland
| | | |
Collapse
|