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Martinez LP, Mina Villarreal MC, Zaza C, Barella M, Acuna GP, Stefani FD, Violi IL, Gargiulo J. Thermometries for Single Nanoparticles Heated with Light. ACS Sens 2024; 9:1049-1064. [PMID: 38482790 DOI: 10.1021/acssensors.4c00012] [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] [Indexed: 03/23/2024]
Abstract
The development of efficient nanoscale photon absorbers, such as plasmonic or high-index dielectric nanostructures, allows the remotely controlled release of heat on the nanoscale using light. These photothermal nanomaterials have found applications in various research and technological fields, ranging from materials science to biology. However, measuring the nanoscale thermal fields remains an open challenge, hindering full comprehension and control of nanoscale photothermal phenomena. Here, we review and discuss existent thermometries suitable for single nanoparticles heated under illumination. These methods are classified in four categories according to the region where they assess temperature: (1) the average temperature within a diffraction-limited volume, (2) the average temperature at the immediate vicinity of the nanoparticle surface, (3) the temperature of the nanoparticle itself, and (4) a map of the temperature around the nanoparticle with nanoscale spatial resolution. In the latter, because it is the most challenging and informative type of method, we also envisage new combinations of technologies that could be helpful in retrieving nanoscale temperature maps. Finally, we analyze and provide examples of strategies to validate the results obtained using different thermometry methods.
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Affiliation(s)
- Luciana P Martinez
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, C1425FQD Ciudad Autónoma de Buenos Aires, Argentina
| | - M Cristina Mina Villarreal
- Instituto de Nanosistemas, Universidad Nacional de San Martín, Av. 25 de mayo 1069, B1650HML San Martín, Buenos Aires, Argentina
| | - Cecilia Zaza
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London WC1H 0AH, United Kingdom
| | - Mariano Barella
- Department of Physics, University of Fribourg, Chemin du Musée 3, Fribourg CH-1700, Switzerland
| | - Guillermo P Acuna
- Department of Physics, University of Fribourg, Chemin du Musée 3, Fribourg CH-1700, Switzerland
| | - Fernando D Stefani
- Centro de Investigaciones en Bionanociencias (CIBION), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2390, C1425FQD Ciudad Autónoma de Buenos Aires, Argentina
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Güiraldes 2620, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Ianina L Violi
- Instituto de Nanosistemas, Universidad Nacional de San Martín, Av. 25 de mayo 1069, B1650HML San Martín, Buenos Aires, Argentina
| | - Julian Gargiulo
- Instituto de Nanosistemas, Universidad Nacional de San Martín, Av. 25 de mayo 1069, B1650HML San Martín, Buenos Aires, Argentina
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Charles-Orszag A, Petek-Seoane NA, Mullins RD. Archaeal actins and the origin of a multi-functional cytoskeleton. J Bacteriol 2024; 206:e0034823. [PMID: 38391233 PMCID: PMC10955848 DOI: 10.1128/jb.00348-23] [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: 02/24/2024] Open
Abstract
Actin and actin-like proteins form filamentous polymers that carry out important cellular functions in all domains of life. In this review, we sketch a map of the function and regulation of actin-like proteins across bacteria, archaea, and eukarya, marking some of the terra incognita that remain in this landscape. We focus particular attention on archaea because mapping the structure and function of cytoskeletal systems across this domain promises to help us understand the evolutionary relationship between the (mostly) mono-functional actin-like filaments found in bacteria and the multi-functional actin cytoskeletons that characterize eukaryotic cells.
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Affiliation(s)
- Arthur Charles-Orszag
- Department of Cellular and Molecular Pharmacology, Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, California, USA
| | - Natalie A. Petek-Seoane
- Department of Cellular and Molecular Pharmacology, Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, California, USA
| | - R. Dyche Mullins
- Department of Cellular and Molecular Pharmacology, Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, California, USA
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Hashimoto S, Uwada T. Melting of a single ice microparticle on exposure to focused near-IR laser beam to yield a supercooled water droplet. Phys Chem Chem Phys 2024; 26:1967-1976. [PMID: 38116623 DOI: 10.1039/d3cp05306g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
We observed for the first time that a single ice microparticle supported on a substrate melted photothermally to form a supercooled water droplet on exposure to tightly focused illumination with a 1064-nm laser beam that generated a point heat source. In situ Raman micro-spectroscopy clearly showed the formation of liquid water at the expense of ice. The observation of this melting is only possible when the experiment is performed with micrometer-sized ice particles. A previous attempt to melt millimeter-sized ice through photothermal heating of gold nanoaggregates fell short of expectations because only vapor formation, rather than liquid water formation, has been postulated. Our observation is significant because thermal confinement in a microscale compartment using a water-air interface as a heat-insulated wall can achieve particle temperatures above the melting point of water, whereas, in an unlimited space of ice, heat transfer from the heating center to the surroundings causes steep temperature decays, resulting in limited temperature increase.
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Affiliation(s)
- Shuichi Hashimoto
- Advanced Engineering Course, NIT Gunma College, 580 Toriba-machi, Maebashi, Guma 371-8530, Japan.
| | - Takayuki Uwada
- Department of Chemistry, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
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Butt SS, Fida I, Fatima M, Khan MS, Mustafa S, Khan MN, Ahmad I. Quantitative phase imaging for characterization of single cell growth dynamics. Lasers Med Sci 2023; 38:241. [PMID: 37851109 DOI: 10.1007/s10103-023-03902-2] [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: 05/24/2023] [Accepted: 09/30/2023] [Indexed: 10/19/2023]
Abstract
Quantitative phase imaging (QPI) has emerged as an indispensable tool in the field of biomedicine, offering the ability to obtain quantitative maps of phase changes due to optical path length delays without the need for contrast agents. These maps provide valuable information about cellular morphology and dynamics, unperturbed by the introduction of exogenous substances. In this review, a summary of recent studies that have focused on elucidating the growth dynamics of individual cells using QPI is presented. Specifically, investigations into cellular changes occurring during mitosis, the differentiation of cellular organelles, the assessment of distinct cell death processes (i.e., apoptosis, necrosis, and oncosis) and the precise measurement of live cell temperature are explored. Furthermore, the captivating applications of QPI in theragnostics, where its potential for transformative impact is prominently showcased, are highlighted. Finally, the challenges that need to be overcome for its wider adoption and successful integration into biomedical research are outlined.
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Affiliation(s)
| | - Irum Fida
- The Women University Multan, Multan, Pakistan
| | | | - Muskan Saif Khan
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Sonia Mustafa
- School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, China
| | | | - Iftikhar Ahmad
- Institute of Radiotherapy and Nuclear Medicine (IRNUM), Peshawar, Pakistan.
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Bénéfice M, Gorlas A, Marthy B, Da Cunha V, Forterre P, Sentenac A, Chaumet PC, Baffou G. Dry mass photometry of single bacteria using quantitative wavefront microscopy. Biophys J 2023; 122:3159-3172. [PMID: 37393431 PMCID: PMC10432216 DOI: 10.1016/j.bpj.2023.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/08/2023] [Accepted: 06/26/2023] [Indexed: 07/03/2023] Open
Abstract
Quantitative phase microscopy (QPM) represents a noninvasive alternative to fluorescence microscopy for cell observation with high contrast and for the quantitative measurement of dry mass (DM) and growth rate at the single-cell level. While DM measurements using QPM have been widely conducted on mammalian cells, bacteria have been less investigated, presumably due to the high resolution and high sensitivity required by their smaller size. This article demonstrates the use of cross-grating wavefront microscopy, a high-resolution and high-sensitivity QPM, for accurate DM measurement and monitoring of single microorganisms (bacteria and archaea). The article covers strategies for overcoming light diffraction and sample focusing, and introduces the concepts of normalized optical volume and optical polarizability (OP) to gain additional information beyond DM. The algorithms for DM, optical volume, and OP measurements are illustrated through two case studies: monitoring DM evolution in a microscale colony-forming unit as a function of temperature, and using OP as a potential species-specific signature.
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Affiliation(s)
- Maëlle Bénéfice
- Institut Fresnel, CNRS, Aix Marseille University, Centrale Marseille, Marseille, France
| | - Aurore Gorlas
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Baptiste Marthy
- Institut Fresnel, CNRS, Aix Marseille University, Centrale Marseille, Marseille, France
| | - Violette Da Cunha
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Patrick Forterre
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France; Département de Microbiologie, Institut Pasteur, Paris, France
| | - Anne Sentenac
- Institut Fresnel, CNRS, Aix Marseille University, Centrale Marseille, Marseille, France
| | - Patrick C Chaumet
- Institut Fresnel, CNRS, Aix Marseille University, Centrale Marseille, Marseille, France
| | - Guillaume Baffou
- Institut Fresnel, CNRS, Aix Marseille University, Centrale Marseille, Marseille, France.
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