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Razi S, Tarcea N, Henkel T, Ravikumar R, Pistiki A, Wagenhaus A, Girnus S, Taubert M, Küsel K, Rösch P, Popp J. Raman-Activated, Interactive Sorting of Isotope-Labeled Bacteria. SENSORS (BASEL, SWITZERLAND) 2024; 24:4503. [PMID: 39065901 PMCID: PMC11281290 DOI: 10.3390/s24144503] [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: 06/04/2024] [Revised: 07/03/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024]
Abstract
Due to its high spatial resolution, Raman microspectroscopy allows for the analysis of single microbial cells. Since Raman spectroscopy analyzes the whole cell content, this method is phenotypic and can therefore be used to evaluate cellular changes. In particular, labeling with stable isotopes (SIPs) enables the versatile use and observation of different metabolic states in microbes. Nevertheless, static measurements can only analyze the present situation and do not allow for further downstream evaluations. Therefore, a combination of Raman analysis and cell sorting is necessary to provide the possibility for further research on selected bacteria in a sample. Here, a new microfluidic approach for Raman-activated continuous-flow sorting of bacteria using an optical setup for image-based particle sorting with synchronous acquisition and analysis of Raman spectra for making the sorting decision is demonstrated, showing that active cells can be successfully sorted by means of this microfluidic chip.
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Affiliation(s)
- Sepehr Razi
- Leibniz-Institute of Photonic Technology, Member of the Leibniz Research Alliance—Leibniz Health Technologies, 07745 Jena, Germany; (S.R.); (N.T.); (T.H.); (A.P.)
- Cluster of Excellence Balance of the Microverse, Friedrich Schiller University Jena, 07743 Jena, Germany; (M.T.); (K.K.)
| | - Nicolae Tarcea
- Leibniz-Institute of Photonic Technology, Member of the Leibniz Research Alliance—Leibniz Health Technologies, 07745 Jena, Germany; (S.R.); (N.T.); (T.H.); (A.P.)
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University, 07743 Jena, Germany; (R.R.); (P.R.)
| | - Thomas Henkel
- Leibniz-Institute of Photonic Technology, Member of the Leibniz Research Alliance—Leibniz Health Technologies, 07745 Jena, Germany; (S.R.); (N.T.); (T.H.); (A.P.)
| | - Ramya Ravikumar
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University, 07743 Jena, Germany; (R.R.); (P.R.)
| | - Aikaterini Pistiki
- Leibniz-Institute of Photonic Technology, Member of the Leibniz Research Alliance—Leibniz Health Technologies, 07745 Jena, Germany; (S.R.); (N.T.); (T.H.); (A.P.)
| | - Annette Wagenhaus
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University, 07743 Jena, Germany; (R.R.); (P.R.)
| | - Sophie Girnus
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University, 07743 Jena, Germany; (R.R.); (P.R.)
| | - Martin Taubert
- Cluster of Excellence Balance of the Microverse, Friedrich Schiller University Jena, 07743 Jena, Germany; (M.T.); (K.K.)
- Aquatic Geomicrobiology, Institute of Biodiversity, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Kirsten Küsel
- Cluster of Excellence Balance of the Microverse, Friedrich Schiller University Jena, 07743 Jena, Germany; (M.T.); (K.K.)
- Aquatic Geomicrobiology, Institute of Biodiversity, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Petra Rösch
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University, 07743 Jena, Germany; (R.R.); (P.R.)
| | - Jürgen Popp
- Leibniz-Institute of Photonic Technology, Member of the Leibniz Research Alliance—Leibniz Health Technologies, 07745 Jena, Germany; (S.R.); (N.T.); (T.H.); (A.P.)
- Cluster of Excellence Balance of the Microverse, Friedrich Schiller University Jena, 07743 Jena, Germany; (M.T.); (K.K.)
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University, 07743 Jena, Germany; (R.R.); (P.R.)
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Jayraj S, Sarmah P, Ghanashyam C, Bankapur A. Light-sheet Raman tweezers for whole-cell biochemical analysis of functional red blood cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123951. [PMID: 38277790 DOI: 10.1016/j.saa.2024.123951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 01/28/2024]
Abstract
Micro-Raman spectroscopy has emerged as one of the foremost techniques for analyzing biological cells in recent years due to its non-destructive nature and high spatial resolution. The development of optical tweezers has eased the research on biological cells as they confine living cells and organisms in the optical trap without causing much damage. Combining optical tweezers with Raman spectroscopy has opened a wide range of applications in the biomedical field as it facilitates biochemical analysis of biological samples by maintaining in-vivo conditions. Herein, we developed a light sheet-based optical tweezer that traps red blood cells (RBCs) at a very low power density spread across the whole cell, otherwise impossible with conventional optical tweezers. Furthermore, it is combined with micro-Raman spectroscopy to perform whole-cell biochemical analysis for the first time. Raman spectra of individual RBCs recorded under the line focal spot excitation are of superior quality and lack spectral signatures of photo-oxidation and heme aggregation, which is common in point focal spot excitations.
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Affiliation(s)
- Smrithi Jayraj
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Panchanil Sarmah
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Cheviri Ghanashyam
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Aseefhali Bankapur
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India.
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Grigorev GV, Lebedev AV, Wang X, Qian X, Maksimov GV, Lin L. Advances in Microfluidics for Single Red Blood Cell Analysis. BIOSENSORS 2023; 13:117. [PMID: 36671952 PMCID: PMC9856164 DOI: 10.3390/bios13010117] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/04/2022] [Accepted: 12/23/2022] [Indexed: 05/24/2023]
Abstract
The utilizations of microfluidic chips for single RBC (red blood cell) studies have attracted great interests in recent years to filter, trap, analyze, and release single erythrocytes for various applications. Researchers in this field have highlighted the vast potential in developing micro devices for industrial and academia usages, including lab-on-a-chip and organ-on-a-chip systems. This article critically reviews the current state-of-the-art and recent advances of microfluidics for single RBC analyses, including integrated sensors and microfluidic platforms for microscopic/tomographic/spectroscopic single RBC analyses, trapping arrays (including bifurcating channels), dielectrophoretic and agglutination/aggregation studies, as well as clinical implications covering cancer, sepsis, prenatal, and Sickle Cell diseases. Microfluidics based RBC microarrays, sorting/counting and trapping techniques (including acoustic, dielectrophoretic, hydrodynamic, magnetic, and optical techniques) are also reviewed. Lastly, organs on chips, multi-organ chips, and drug discovery involving single RBC are described. The limitations and drawbacks of each technology are addressed and future prospects are discussed.
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Affiliation(s)
- Georgii V. Grigorev
- Data Science and Information Technology Research Center, Tsinghua Berkeley Shenzhen Institute, Tsinghua University, Shenzhen 518055, China
- Mechanical Engineering Department, University of California in Berkeley, Berkeley, CA 94720, USA
- School of Information Technology, Cherepovets State University, 162600 Cherepovets, Russia
| | - Alexander V. Lebedev
- Machine Building Department, Bauman Moscow State University, 105005 Moscow, Russia
| | - Xiaohao Wang
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Xiang Qian
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - George V. Maksimov
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- Physical metallurgy Department, Federal State Autonomous Educational Institution of Higher Education National Research Technological University “MISiS”, 119049 Moscow, Russia
| | - Liwei Lin
- Mechanical Engineering Department, University of California in Berkeley, Berkeley, CA 94720, USA
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Chen C, Zhao Z, Qian N, Wei S, Hu F, Min W. Multiplexed live-cell profiling with Raman probes. Nat Commun 2021; 12:3405. [PMID: 34099708 PMCID: PMC8184955 DOI: 10.1038/s41467-021-23700-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/11/2021] [Indexed: 02/05/2023] Open
Abstract
Single-cell multiparameter measurement has been increasingly recognized as a key technology toward systematic understandings of complex molecular and cellular functions in biological systems. Despite extensive efforts in analytical techniques, it is still generally challenging for existing methods to decipher a large number of phenotypes in a single living cell. Herein we devise a multiplexed Raman probe panel with sharp and mutually resolvable Raman peaks to simultaneously quantify cell surface proteins, endocytosis activities, and metabolic dynamics of an individual live cell. When coupling it to whole-cell spontaneous Raman micro-spectroscopy, we demonstrate the utility of this technique in 14-plexed live-cell profiling and phenotyping under various drug perturbations. In particular, single-cell multiparameter measurement enables powerful clustering, correlation, and network analysis with biological insights. This profiling platform is compatible with live-cell cytometry, of low instrument complexity and capable of highly multiplexed measurement in a robust and straightforward manner, thereby contributing a valuable tool for both basic single-cell biology and translation applications such as high-content cell sorting and drug discovery.
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Affiliation(s)
- Chen Chen
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Zhilun Zhao
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Naixin Qian
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Shixuan Wei
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Fanghao Hu
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Wei Min
- Department of Chemistry, Columbia University, New York, NY, USA.
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Liang Y, Yan S, Yao B, Lei M. Direct observation and characterization of optical guiding of microparticles by tightly focused non-diffracting beams. OPTICS EXPRESS 2019; 27:37975-37985. [PMID: 31878569 DOI: 10.1364/oe.381969] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
Due to the propagation-invariant and self-healing properties, nondiffracting beams are highly attractive in optical trapping. However, little attention has been paid to investigating optical guiding of microparticles in nondiffracting beams generated by high-numerical-aperture (NA) optics with direct visualization. In this letter, we report a technique for direct observation and characterization of optical guiding of microparticles in a tight focusing system. With this technique, we observed a parabolic particle guiding trajectory with a longitudinal distance of more than 100µm and a maximal lateral deviation of 20 µm when using Airy beams. We also realized the tilted-path transport of microparticles with controllable guiding direction using tilted zeroth-order quasi-Bessel beams. For an NA of the focusing lens equal to 0.95, we achieved the optical guiding of microparticles along a straight path with a tilt angle of up to 18.8° with respect to the optical axis over a distance of 300 µm. Importantly, quantitative measurement of particle's motion was readily accessed by measuring the particle's position and velocity during the transport process. The reported technique for direct visualization and characterization of the guided particles will find its potential applications in optical trapping and guiding with novel nondiffracting beams or accelerating beams.
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