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Tan W, Zhang Q, Lee M, Lau W, Xu B. Enzymatic control of intermolecular interactions for generating synthetic nanoarchitectures in cellular environment. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2024; 25:2373045. [PMID: 39011064 PMCID: PMC11249168 DOI: 10.1080/14686996.2024.2373045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 06/23/2024] [Indexed: 07/17/2024]
Abstract
Nanoarchitectonics, as a technology to arrange nano-sized structural units such as molecules in a desired configuration, requires nano-organization, which usually relies on intermolecular interactions. This review briefly introduces the development of using enzymatic reactions to control intermolecular interactions for generating artificial nanoarchitectures in a cellular environment. We begin the discussion with the early examples and uniqueness of enzymatically controlled self-assembly. Then, we describe examples of generating intracellular nanostructures and their relevant applications. Subsequently, we discuss cases of forming nanostructures on the cell surface via enzymatic reactions. Following that, we highlight the use of enzymatic reactions for creating intercellular nanostructures. Finally, we provide a summary and outlook on the promises and future direction of this strategy. Our aim is to give an updated introduction to the use of enzymatic reaction in regulating intermolecular interactions, a phenomenon ubiquitous in biology but relatively less explored by chemists and materials scientists. Our goal is to stimulate new developments in this simple and versatile approach for addressing societal needs.
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Affiliation(s)
- Weiyi Tan
- Department of Chemistry, Brandeis University, Waltham, MA, USA
| | - Qiuxin Zhang
- Department of Chemistry, Brandeis University, Waltham, MA, USA
| | - Mikki Lee
- Department of Chemistry, Brandeis University, Waltham, MA, USA
- Department of Pharmacy and Pharmaceutical Sciences, National University ofSingapore, Singapore
| | - William Lau
- Department of Chemistry, Brandeis University, Waltham, MA, USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, Waltham, MA, USA
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2
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Gao Y, Zheng P, Meng ZD, Wang HL, You EM, Zhong JH, Tian ZQ, Wang L, He H. Fast Nano-IR Hyperspectral Imaging Empowered by Large-Dataset-Free Miniaturized Spatial-Spectral Network. Anal Chem 2024; 96:9610-9620. [PMID: 38822784 DOI: 10.1021/acs.analchem.4c01211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2024]
Abstract
The emerging field of nanoscale infrared (nano-IR) offers label-free molecular contrast, yet its imaging speed is limited by point-by-point traverse acquisition of a three-dimensional (3D) data cube. Here, we develop a spatial-spectral network (SS-Net), a miniaturized deep-learning model, together with compressive sampling to accelerate the nano-IR imaging. The compressive sampling is performed in both the spatial and spectral domains to accelerate the imaging process. The SS-Net is trained to learn the mapping from small nano-IR image patches to the corresponding spectra. With this elaborated mapping strategy, the training can be finished quickly within several minutes using the subsampled data, eliminating the need for a large-labeled dataset of common deep learning methods. We also designed an efficient loss function, which incorporates the image and spectral similarity to enhance the training. We first validate the SS-Net on an open stimulated Raman-scattering dataset; the results exhibit the potential of 10-fold imaging speed improvement with state-of-the-art performance. We then demonstrate the versatility of this approach on atomic force microscopy infrared (AFM-IR) microscopy with 7-fold imaging speed improvement, even on nanoscale Fourier transform infrared (nano-FTIR) microscopy with up to 261.6 folds faster imaging speed. We further showcase the generalization of this method on AFM-force volume-based multiparametric nanoimaging. This method establishes a paradigm for rapid nano-IR imaging, opening new possibilities for cutting-edge research in materials, photonics, and beyond.
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Affiliation(s)
- Yun Gao
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China
| | - Peng Zheng
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China
| | - Zhao-Dong Meng
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hai-Long Wang
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361102, China
| | - En-Ming You
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- School of Ocean Information Engineering, Jimei University, Xiamen 361021, China
| | - Jin-Hui Zhong
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Qun Tian
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lei Wang
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China
| | - Hao He
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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Hanninen A. Vibrational imaging of metabolites for improved microbial cell strains. JOURNAL OF BIOMEDICAL OPTICS 2024; 29:S22711. [PMID: 38952688 PMCID: PMC11216725 DOI: 10.1117/1.jbo.29.s2.s22711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 07/03/2024]
Abstract
Significance Biomanufacturing utilizes modified microbial systems to sustainably produce commercially important biomolecules for use in agricultural, energy, food, material, and pharmaceutical industries. However, technological challenges related to non-destructive and high-throughput metabolite screening need to be addressed to fully unlock the potential of synthetic biology and sustainable biomanufacturing. Aim This perspective outlines current analytical screening tools used in industrial cell strain development programs and introduces label-free vibrational spectro-microscopy as an alternative contrast mechanism. Approach We provide an overview of the analytical instrumentation currently used in the "test" portion of the design, build, test, and learn cycle of synthetic biology. We then highlight recent progress in Raman scattering and infrared absorption imaging techniques, which have enabled improved molecular specificity and sensitivity. Results Recent developments in high-resolution chemical imaging methods allow for greater throughput without compromising the image contrast. We provide a roadmap of future work needed to support integration with microfluidics for rapid screening at the single-cell level. Conclusions Quantifying the net expression of metabolites allows for the identification of cells with metabolic pathways that result in increased biomolecule production, which is essential for improving the yield and reducing the cost of industrial biomanufacturing. Technological advancements in vibrational microscopy instrumentation will greatly benefit biofoundries as a complementary approach for non-destructive cell screening.
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Teng X, Li M, He H, Jia D, Yin J, Bolarinho R, Cheng JX. Mid-infrared Photothermal Imaging: Instrument and Life Science Applications. Anal Chem 2024; 96:7895-7906. [PMID: 38702858 DOI: 10.1021/acs.analchem.4c02017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
Affiliation(s)
- Xinyan Teng
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Mingsheng Li
- Photonics Center, Boston University, Boston, Massachusetts 02215, United States
- Department of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Hongjian He
- Photonics Center, Boston University, Boston, Massachusetts 02215, United States
- Department of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Danchen Jia
- Photonics Center, Boston University, Boston, Massachusetts 02215, United States
- Department of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Jiaze Yin
- Photonics Center, Boston University, Boston, Massachusetts 02215, United States
- Department of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Rylie Bolarinho
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Ji-Xin Cheng
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Photonics Center, Boston University, Boston, Massachusetts 02215, United States
- Department of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
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5
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Medina-Ramirez IE, Macias-Diaz JE, Masuoka-Ito D, Zapien JA. Holotomography and atomic force microscopy: a powerful combination to enhance cancer, microbiology and nanotoxicology research. DISCOVER NANO 2024; 19:64. [PMID: 38594446 PMCID: PMC11003950 DOI: 10.1186/s11671-024-04003-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 03/23/2024] [Indexed: 04/11/2024]
Abstract
Modern imaging strategies are paramount to studying living systems such as cells, bacteria, and fungi and their response to pathogens, toxicants, and nanomaterials (NMs) as modulated by exposure and environmental factors. The need to understand the processes and mechanisms of damage, healing, and cell survivability of living systems continues to motivate the development of alternative imaging strategies. Of particular interest is the use of label-free techniques (microscopy procedures that do not require sample staining) that minimize interference of biological processes by foreign marking substances and reduce intense light exposure and potential photo-toxicity effects. This review focuses on the synergic capabilities of atomic force microscopy (AFM) as a well-developed and robust imaging strategy with demonstrated applications to unravel intimate details in biomedical applications, with the label-free, fast, and enduring Holotomographic Microscopy (HTM) strategy. HTM is a technique that combines holography and tomography using a low intensity continuous illumination laser to investigate (quantitatively and non-invasively) cells, microorganisms, and thin tissue by generating three-dimensional (3D) images and monitoring in real-time inner morphological changes. We first review the operating principles that form the basis for the complementary details provided by these techniques regarding the surface and internal information provided by HTM and AFM, which are essential and complimentary for the development of several biomedical areas studying the interaction mechanisms of NMs with living organisms. First, AFM can provide superb resolution on surface morphology and biomechanical characterization. Second, the quantitative phase capabilities of HTM enable superb modeling and quantification of the volume, surface area, protein content, and mass density of the main components of cells and microorganisms, including the morphology of cells in microbiological systems. These capabilities result from directly quantifying refractive index changes without requiring fluorescent markers or chemicals. As such, HTM is ideal for long-term monitoring of living organisms in conditions close to their natural settings. We present a case-based review of the principal uses of both techniques and their essential contributions to nanomedicine and nanotoxicology (study of the harmful effects of NMs in living organisms), emphasizing cancer and infectious disease control. The synergic impact of the sequential use of these complementary strategies provides a clear drive for adopting these techniques as interdependent fundamental tools.
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Affiliation(s)
- Iliana E Medina-Ramirez
- Department of Chemistry, Universidad Autónoma de Aguascalientes, Av. Universidad 940, Aguascalientes, Ags, Mexico.
| | - J E Macias-Diaz
- Department of Mathematics and Physics, Universidad Autónoma de Aguascalientes, Av. Universidad 940, Aguascalientes, Ags, Mexico
| | - David Masuoka-Ito
- Department of Stomatology, Universidad Autónoma de Aguascalientes, Av. Universidad 940, Aguascalientes, Ags, Mexico
| | - Juan Antonio Zapien
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, People's Republic of China.
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Samolis PD, Sander MY. Increasing contrast in water-embedded particles via time-gated mid-infrared photothermal microscopy. OPTICS LETTERS 2024; 49:1457-1460. [PMID: 38489424 DOI: 10.1364/ol.513742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/06/2024] [Indexed: 03/17/2024]
Abstract
The transient dynamics of photothermal signals provide interesting insights into material properties and heat diffusion. In a mid-infrared (mid-IR) photothermal microscope, the imaging contrast in a standard amplitude imaging can decrease due to thermal diffusion effects. It is shown that contrast varies for poly-methyl 2-methylpropenoate (PMMA) particles of different sizes when embedded in an absorbing medium of water (H2O) based on levels of heat exchange under the water absorption resonance. Using time-resolved boxcar (BC) detection, analysis of the transient thermal dynamics at the bead-water interface is presented, and the time decay parameters for 500 nm and 100 nm beads are determined. Enhanced (negative) imaging contrast is observed for less heat exchange between the water and bead, as in the case for the 100 nm bead. For the 500 nm bead, boxcar imaging before heat exchange starts occurring, leads to an increase of the imaging contrast up to a factor of 1.6.
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7
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Verrier N, Debailleul M, Haeberlé O. Recent Advances and Current Trends in Transmission Tomographic Diffraction Microscopy. SENSORS (BASEL, SWITZERLAND) 2024; 24:1594. [PMID: 38475130 DOI: 10.3390/s24051594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
Optical microscopy techniques are among the most used methods in biomedical sample characterization. In their more advanced realization, optical microscopes demonstrate resolution down to the nanometric scale. These methods rely on the use of fluorescent sample labeling in order to break the diffraction limit. However, fluorescent molecules' phototoxicity or photobleaching is not always compatible with the investigated samples. To overcome this limitation, quantitative phase imaging techniques have been proposed. Among these, holographic imaging has demonstrated its ability to image living microscopic samples without staining. However, for a 3D assessment of samples, tomographic acquisitions are needed. Tomographic Diffraction Microscopy (TDM) combines holographic acquisitions with tomographic reconstructions. Relying on a 3D synthetic aperture process, TDM allows for 3D quantitative measurements of the complex refractive index of the investigated sample. Since its initial proposition by Emil Wolf in 1969, the concept of TDM has found a lot of applications and has become one of the hot topics in biomedical imaging. This review focuses on recent achievements in TDM development. Current trends and perspectives of the technique are also discussed.
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Affiliation(s)
- Nicolas Verrier
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, 68093 Mulhouse, France
| | - Matthieu Debailleul
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, 68093 Mulhouse, France
| | - Olivier Haeberlé
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, 68093 Mulhouse, France
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8
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Yuan T, Riobo L, Gasparin F, Ntziachristos V, Pleitez MA. Phase-shifting optothermal microscopy enables live-cell mid-infrared hyperspectral imaging of large cell populations at high confluency. SCIENCE ADVANCES 2024; 10:eadj7944. [PMID: 38381817 PMCID: PMC10881023 DOI: 10.1126/sciadv.adj7944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/11/2024] [Indexed: 02/23/2024]
Abstract
Rapid live-cell hyperspectral imaging at large fields of view (FOVs) and high cell confluency remains challenging for conventional vibrational spectroscopy-based microscopy technologies. At the same time, imaging at high cell confluency and large FOVs is important for proper cell function and statistical significance of measurements, respectively. Here, we introduce phase-shifting mid-infrared optothermal microscopy (PSOM), which interprets molecular-vibrational information as the optical path difference induced by mid-infrared absorption and can take snapshot vibrational images over broad excitation areas at high live-cell confluency. By means of phase-shifting, PSOM suppresses noise to a quarter of current optothermal microscopy modalities to allow capturing live-cell vibrational images at FOVs up to 50 times larger than state of the art. PSOM also reduces illumination power flux density (PFD) down to four orders of magnitude lower than other conventional vibrational microscopy methods, such as coherent anti-Stokes Raman scattering (CARS), thus considerably decreasing the risk of cell photodamage.
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Affiliation(s)
- Tao Yuan
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Lucas Riobo
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Francesca Gasparin
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Munich Institute of Biomedical Engineering (MIBE), Technical University of Munich, Garching b. München, Germany
| | - Miguel A. Pleitez
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
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9
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Liu R, Wen K, Li J, Ma Y, Zheng J, An S, Min J, Zalevsky Z, Yao B, Gao P. Multi-harmonic structured illumination-based optical diffraction tomography. APPLIED OPTICS 2023; 62:9199-9206. [PMID: 38108690 DOI: 10.1364/ao.508138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/08/2023] [Indexed: 12/19/2023]
Abstract
Imaging speed and spatial resolution are key factors in optical diffraction tomography (ODT), while they are mutually exclusive in 3D refractive index imaging. This paper presents a multi-harmonic structured illumination-based optical diffraction tomography (MHSI-ODT) to acquire 3D refractive index (RI) maps of transparent samples. MHSI-ODT utilizes a digital micromirror device (DMD) to generate structured illumination containing multiple harmonics. For each structured illumination orientation, four spherical spectral crowns are solved from five phase-shifted holograms, meaning that the acquisition of each spectral crown costs 1.25 raw images. Compared to conventional SI-ODT, which retrieves two spectral crowns from three phase-shifted raw images, MHSI-ODT enhances the imaging speed by 16.7% in 3D RI imaging. Meanwhile, MHSI-ODT exploits both the 1st-order and the 2nd-order harmonics; therefore, it has a better intensity utilization of structured illumination. We demonstrated the performance of MHSI-ODT by rendering the 3D RI distributions of 5 µm polystyrene (PS) microspheres and biological samples.
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10
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Zong H, Yurdakul C, Zhao J, Wang Z, Chen F, Ünlü MS, Cheng JX. Bond-selective full-field optical coherence tomography. OPTICS EXPRESS 2023; 31:41202-41218. [PMID: 38087525 DOI: 10.1364/oe.503861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023]
Abstract
Optical coherence tomography (OCT) is a label-free, non-invasive 3D imaging tool widely used in both biological research and clinical diagnosis. Conventional OCT modalities can only visualize specimen tomography without chemical information. Here, we report a bond-selective full-field OCT (BS-FF-OCT), in which a pulsed mid-infrared laser is used to modulate the OCT signal through the photothermal effect, achieving label-free bond-selective 3D sectioned imaging of highly scattering samples. We first demonstrate BS-FF-OCT imaging of 1 µm PMMA beads embedded in agarose gel. Next, we show 3D hyperspectral imaging of up to 75 µm of polypropylene fiber mattress from a standard surgical mask. We then demonstrate BS-FF-OCT imaging on biological samples, including cancer cell spheroids and C. elegans. Using an alternative pulse timing configuration, we finally demonstrate the capability of BS-FF-OCT on imaging a highly scattering myelinated axons region in a mouse brain tissue slice.
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11
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Xia Q, Guo Z, Zong H, Seitz S, Yurdakul C, Ünlü MS, Wang L, Connor JH, Cheng JX. Single virus fingerprinting by widefield interferometric defocus-enhanced mid-infrared photothermal microscopy. Nat Commun 2023; 14:6655. [PMID: 37863905 PMCID: PMC10589364 DOI: 10.1038/s41467-023-42439-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 10/11/2023] [Indexed: 10/22/2023] Open
Abstract
Clinical identification and fundamental study of viruses rely on the detection of viral proteins or viral nucleic acids. Yet, amplification-based and antigen-based methods are not able to provide precise compositional information of individual virions due to small particle size and low-abundance chemical contents (e.g., ~ 5000 proteins in a vesicular stomatitis virus). Here, we report a widefield interferometric defocus-enhanced mid-infrared photothermal (WIDE-MIP) microscope for high-throughput fingerprinting of single viruses. With the identification of feature absorption peaks, WIDE-MIP reveals the contents of viral proteins and nucleic acids in single DNA vaccinia viruses and RNA vesicular stomatitis viruses. Different nucleic acid signatures of thymine and uracil residue vibrations are obtained to differentiate DNA and RNA viruses. WIDE-MIP imaging further reveals an enriched β sheet components in DNA varicella-zoster virus proteins. Together, these advances open a new avenue for compositional analysis of viral vectors and elucidating protein function in an assembled virion.
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Affiliation(s)
- Qing Xia
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - Zhongyue Guo
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Haonan Zong
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - Scott Seitz
- Department of Microbiology and National Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Celalettin Yurdakul
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - M Selim Ünlü
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - Le Wang
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - John H Connor
- Department of Microbiology and National Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA, 02118, USA.
| | - Ji-Xin Cheng
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA.
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA.
- Photonics Center, Boston University, Boston, MA, 02215, USA.
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12
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Pandya R, Valzania L, Dorchies F, Xia F, Mc Hugh J, Mathieson A, Tan HJ, Parton TG, Godeffroy L, Mazloomian K, Miller TS, Kanoufi F, De Volder M, Tarascon JM, Gigan S, de Aguiar HB, Grimaud A. Three-dimensional operando optical imaging of particle and electrolyte heterogeneities inside Li-ion batteries. NATURE NANOTECHNOLOGY 2023; 18:1185-1194. [PMID: 37591934 DOI: 10.1038/s41565-023-01466-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 06/20/2023] [Indexed: 08/19/2023]
Abstract
Understanding (de)lithiation heterogeneities in battery materials is key to ensure optimal electrochemical performance. However, this remains challenging due to the three-dimensional morphology of electrode particles, the involvement of both solid- and liquid-phase reactants and a range of relevant timescales (seconds to hours). Here we overcome this problem and demonstrate the use of confocal microscopy for the simultaneous three-dimensional operando measurement of lithium-ion dynamics in individual agglomerate particles, and the electrolyte in batteries. We examine two technologically important cathode materials: LixCoO2 and LixNi0.8Mn0.1Co0.1O2. The surface-to-core transport velocity of Li-phase fronts and volume changes are captured as a function of cycling rate. Additionally, we visualize heterogeneities in the bulk and at agglomerate surfaces during cycling, and image microscopic liquid electrolyte concentration gradients. We discover that surface-limited reactions and intra-agglomerate competing rates control (de)lithiation and structural heterogeneities in agglomerate-based electrodes. Importantly, the conditions under which optical imaging can be performed inside the complex environments of battery electrodes are outlined.
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Affiliation(s)
- Raj Pandya
- Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Sorbonne Université, Collège de France, Paris, France.
- Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge, UK.
| | - Lorenzo Valzania
- Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Sorbonne Université, Collège de France, Paris, France
| | - Florian Dorchies
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, Paris, France
- Réseau sur le stockage Electrochimique de l'Energie (RS2E), Amiens, France
| | - Fei Xia
- Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Sorbonne Université, Collège de France, Paris, France
| | - Jeffrey Mc Hugh
- Neuroglial Interactions in Cerebral Physiology and Pathologies, Center for Interdisciplinary Research in Biology, Collège de France, CNRS, INSERM, Labex Memolife, Université PSL, Paris, France
| | - Angus Mathieson
- Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge, UK
- Department of Engineering, University of Cambridge, Cambridge, UK
| | - Hwee Jien Tan
- Department of Engineering, University of Cambridge, Cambridge, UK
| | - Thomas G Parton
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, UK
| | | | - Katrina Mazloomian
- Electrochemical Innovation Lab Department of Chemical Engineering, UCL, London, UK
| | - Thomas S Miller
- Electrochemical Innovation Lab Department of Chemical Engineering, UCL, London, UK
| | | | | | - Jean-Marie Tarascon
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, Paris, France
- Réseau sur le stockage Electrochimique de l'Energie (RS2E), Amiens, France
| | - Sylvain Gigan
- Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Sorbonne Université, Collège de France, Paris, France.
| | - Hilton B de Aguiar
- Laboratoire Kastler Brossel, ENS-Université PSL, CNRS, Sorbonne Université, Collège de France, Paris, France.
| | - Alexis Grimaud
- Chimie du Solide et de l'Energie, UMR 8260, Collège de France, Paris, France.
- Réseau sur le stockage Electrochimique de l'Energie (RS2E), Amiens, France.
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, USA.
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Jia D, Zhang Y, Yang Q, Xue Y, Tan Y, Guo Z, Zhang M, Tian L, Cheng JX. 3D Chemical Imaging by Fluorescence-detected Mid-Infrared Photothermal Fourier Light Field Microscopy. CHEMICAL & BIOMEDICAL IMAGING 2023; 1:260-267. [PMID: 37388959 PMCID: PMC10302888 DOI: 10.1021/cbmi.3c00022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/04/2023] [Accepted: 03/08/2023] [Indexed: 07/01/2023]
Abstract
Three-dimensional molecular imaging of living organisms and cells plays a significant role in modern biology. Yet, current volumetric imaging modalities are largely fluorescence-based and thus lack chemical content information. Mid-infrared photothermal microscopy as a chemical imaging technology provides infrared spectroscopic information at submicrometer spatial resolution. Here, by harnessing thermosensitive fluorescent dyes to sense the mid-infrared photothermal effect, we demonstrate 3D fluorescence-detected mid-infrared photothermal Fourier light field (FMIP-FLF) microscopy at the speed of 8 volumes per second and submicron spatial resolution. Protein contents in bacteria and lipid droplets in living pancreatic cancer cells are visualized. Altered lipid metabolism in drug-resistant pancreatic cancer cells is observed with the FMIP-FLF microscope.
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Affiliation(s)
- Danchen Jia
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Yi Zhang
- Department
of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - Qianwan Yang
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Yujia Xue
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Yuying Tan
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Zhongyue Guo
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Meng Zhang
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Lei Tian
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Ji-Xin Cheng
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
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14
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Yin J, Zhang M, Tan Y, Guo Z, He H, Lan L, Cheng JX. Video-rate mid-infrared photothermal imaging by single-pulse photothermal detection per pixel. SCIENCE ADVANCES 2023; 9:eadg8814. [PMID: 37315131 DOI: 10.1126/sciadv.adg8814] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/09/2023] [Indexed: 06/16/2023]
Abstract
By optically sensing absorption-induced photothermal effect, mid-infrared (IR) photothermal (MIP) microscope enables super-resolution IR imaging of biological systems in water. However, the speed of current sample-scanning MIP system is limited to milliseconds per pixel, which is insufficient for capturing living dynamics. By detecting the transient photothermal signal induced by a single IR pulse through fast digitization, we report a laser-scanning MIP microscope that increases the imaging speed by three orders of magnitude. To realize single-pulse photothermal detection, we use synchronized galvo scanning of both mid-IR and probe beams to achieve an imaging line rate of more than 2 kilohertz. With video-rate speed, we observed the dynamics of various biomolecules in living organisms at multiple scales. Furthermore, by using hyperspectral imaging, we chemically dissected the layered ultrastructure of fungal cell wall. Last, with a uniform field of view more than 200 by 200 square micrometer, we mapped fat storage in free-moving Caenorhabditis elegans and live embryos.
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Affiliation(s)
- Jiaze Yin
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Meng Zhang
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Yuying Tan
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Zhongyue Guo
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Hongjian He
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Lu Lan
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Ji-Xin Cheng
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
- Photonics Center, Boston University, Boston, MA 02215, USA
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15
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Zhao J, Jiang L, Matlock A, Xu Y, Zhu J, Zhu H, Tian L, Wolozin B, Cheng JX. Mid-infrared chemical imaging of intracellular tau fibrils using fluorescence-guided computational photothermal microscopy. LIGHT, SCIENCE & APPLICATIONS 2023; 12:147. [PMID: 37322011 PMCID: PMC10272128 DOI: 10.1038/s41377-023-01191-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/18/2023] [Accepted: 05/21/2023] [Indexed: 06/17/2023]
Abstract
Amyloid proteins are associated with a broad spectrum of neurodegenerative diseases. However, it remains a grand challenge to extract molecular structure information from intracellular amyloid proteins in their native cellular environment. To address this challenge, we developed a computational chemical microscope integrating 3D mid-infrared photothermal imaging with fluorescence imaging, termed Fluorescence-guided Bond-Selective Intensity Diffraction Tomography (FBS-IDT). Based on a low-cost and simple optical design, FBS-IDT enables chemical-specific volumetric imaging and 3D site-specific mid-IR fingerprint spectroscopic analysis of tau fibrils, an important type of amyloid protein aggregates, in their intracellular environment. Label-free volumetric chemical imaging of human cells with/without seeded tau fibrils is demonstrated to show the potential correlation between lipid accumulation and tau aggregate formation. Depth-resolved mid-infrared fingerprint spectroscopy is performed to reveal the protein secondary structure of the intracellular tau fibrils. 3D visualization of the β-sheet for tau fibril structure is achieved.
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Affiliation(s)
- Jian Zhao
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA.
- The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA.
| | - Lulu Jiang
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Alex Matlock
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | - Yihong Xu
- Department of Physics, Boston University, Boston, MA, 02215, USA
| | - Jiabei Zhu
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
| | - Hongbo Zhu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, China
| | - Lei Tian
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Benjamin Wolozin
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, 02118, USA
| | - Ji-Xin Cheng
- Department of Electrical and Computer Engineering, Boston University, Boston, MA, 02215, USA.
- Department of Physics, Boston University, Boston, MA, 02215, USA.
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA.
- Photonics Center, Boston University, Boston, MA, 02215, USA.
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16
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Tang M, Han Y, Jia D, Yang Q, Cheng JX. Far-field super-resolution chemical microscopy. LIGHT, SCIENCE & APPLICATIONS 2023; 12:137. [PMID: 37277396 DOI: 10.1038/s41377-023-01182-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 06/07/2023]
Abstract
Far-field chemical microscopy providing molecular electronic or vibrational fingerprint information opens a new window for the study of three-dimensional biological, material, and chemical systems. Chemical microscopy provides a nondestructive way of chemical identification without exterior labels. However, the diffraction limit of optics hindered it from discovering more details under the resolution limit. Recent development of super-resolution techniques gives enlightenment to open this door behind far-field chemical microscopy. Here, we review recent advances that have pushed the boundary of far-field chemical microscopy in terms of spatial resolution. We further highlight applications in biomedical research, material characterization, environmental study, cultural heritage conservation, and integrated chip inspection.
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Affiliation(s)
- Mingwei Tang
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Intelligent Perception Research Institute, Zhejiang Lab, Hangzhou, 311100, China
| | - Yubing Han
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Danchen Jia
- Department of Biomedical Engineering, Department of Electrical and Computer Engineering, Photonics Center, Boston University, Boston, MA, 02459, USA
| | - Qing Yang
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Intelligent Perception Research Institute, Zhejiang Lab, Hangzhou, 311100, China
| | - Ji-Xin Cheng
- Department of Biomedical Engineering, Department of Electrical and Computer Engineering, Photonics Center, Boston University, Boston, MA, 02459, USA.
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Yin J, Zhang M, Tan Y, Guo Z, He H, Lan L, Cheng JX. Video-rate Mid-infrared Photothermal Imaging by Single Pulse Photothermal Detection per Pixel. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.27.530116. [PMID: 36909493 PMCID: PMC10002684 DOI: 10.1101/2023.02.27.530116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
By optically sensing the mid-infrared absorption induced photothermal effect, midinfrared photothermal (MIP) microscope enables super-resolution IR imaging and scrutinizing of biological systems in an aqueous environment. However, the speed of current lock-in based sample-scanning MIP system is limited to 1.0 millisecond or longer per pixel, which is insufficient for capturing dynamics inside living systems. Here, we report a single pulse laserscanning MIP microscope that dramatically increases the imaging speed by three orders of magnitude. We harness a lock-in free demodulation scheme which uses high-speed digitization to resolve single IR pulse induced contrast at nanosecond time scale. To realize single pulse photothermal detection at each pixel, we employ two sets of galvo mirrors for synchronized scanning of mid-infrared and probe beams to achieve an imaging line rate over 2 kHz. With video-rate imaging capability, we observed two types of distinct dynamics of lipids in living cells. Furthermore, by hyperspectral imaging, we chemically dissected a single cell wall at nanometer scale. Finally, with a uniform field of view over 200 by 200 μm 2 and 2 Hz frame rate, we mapped fat storage in free-moving C. elegans and live embryos.
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18
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Matlock A, Zhu J, Tian L. Multiple-scattering simulator-trained neural network for intensity diffraction tomography. OPTICS EXPRESS 2023; 31:4094-4107. [PMID: 36785385 DOI: 10.1364/oe.477396] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/29/2022] [Indexed: 06/18/2023]
Abstract
Recovering 3D phase features of complex biological samples traditionally sacrifices computational efficiency and processing time for physical model accuracy and reconstruction quality. Here, we overcome this challenge using an approximant-guided deep learning framework in a high-speed intensity diffraction tomography system. Applying a physics model simulator-based learning strategy trained entirely on natural image datasets, we show our network can robustly reconstruct complex 3D biological samples. To achieve highly efficient training and prediction, we implement a lightweight 2D network structure that utilizes a multi-channel input for encoding the axial information. We demonstrate this framework on experimental measurements of weakly scattering epithelial buccal cells and strongly scattering C. elegans worms. We benchmark the network's performance against a state-of-the-art multiple-scattering model-based iterative reconstruction algorithm. We highlight the network's robustness by reconstructing dynamic samples from a living worm video. We further emphasize the network's generalization capabilities by recovering algae samples imaged from different experimental setups. To assess the prediction quality, we develop a quantitative evaluation metric to show that our predictions are consistent with both multiple-scattering physics and experimental measurements.
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19
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Chen G, Shi Y, Tian W, Xie H, Yan Z, Yu J. Demethylaromatization of cyclohexadienones by iodotriphenylphosphonium iodide. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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