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Lee H, Wang Z, Rao Q, Lee S, Huan X, Liu Y, Yang J, Chen M, Ki DK, Kim JT. Additive Manufacturing of Thermoelectric Microdevices for 4D Thermometry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301704. [PMID: 37149779 DOI: 10.1002/adma.202301704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/25/2023] [Indexed: 05/08/2023]
Abstract
Thermometry, the process of measuring temperature, is one of the most fundamental tasks not only for understanding the thermodynamics of basic physical, chemical, and biological processes but also for thermal management of microelectronics. However, it is a challenge to acquire microscale temperature fields in both space and time. Here, a 3D printed micro-thermoelectric device that enables direct 4D (3D Space + Time) thermometry at the microscale is reported. The device is composed of freestanding thermocouple probe networks, fabricated by bi-metal 3D printing with an outstanding spatial resolution of a few µm. It shows that the developed 4D thermometry can explore dynamics of Joule heating or evaporative cooling on microscale subjects of interest such as a microelectrode or a water meniscus. The utilization of 3D printing further opens up the possibility to freely realize a wide range of on-chip, freestanding microsensors or microelectronic devices without the design restrictions by manufacturing processes.
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Grants
- 27300819 Early Career Scheme, Research Grants Council of Hong Kong
- 17208218 General Research Fund, Research Grants Council of Hong Kong
- 17208919 General Research Fund, Research Grants Council of Hong Kong
- 17204020 General Research Fund, Research Grants Council of Hong Kong
- 17200222 General Research Fund, Research Grants Council of Hong Kong
- 17300020 General Research Fund, Research Grants Council of Hong Kong
- 17300521 General Research Fund, Research Grants Council of Hong Kong
- 17309722 General Research Fund, Research Grants Council of Hong Kong
- 201910159047 Seed Fund for Basic Research, University of Hong Kong
- 202111159097 Seed Fund for Basic Research, University of Hong Kong
- 202111159043 Seed Fund for Basic Research, University of Hong Kong
- Seed Funding for Strategic Interdisciplinary Research Scheme, University of Hong Kong
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Affiliation(s)
- Heekwon Lee
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Zhuoran Wang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Qing Rao
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Sanghyeon Lee
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Xiao Huan
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Yu Liu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Jihyuk Yang
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Mojun Chen
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
- Smart Manufacturing Thrust, Systems Hub, The Hong Kong University of Science and Technology, Guangzhou, 511458, China
| | - Dong-Keun Ki
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Ji Tae Kim
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
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2
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Lecompagnon J, Hirsch PD, Rupprecht C, Ziegler M. Nondestructive thermographic detection of internal defects using pixel-pattern based laser excitation and photothermal super resolution reconstruction. Sci Rep 2023; 13:3416. [PMID: 36854785 PMCID: PMC9975199 DOI: 10.1038/s41598-023-30494-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
In this work, we present a novel approach to photothermal super resolution based thermographic resolution of internal defects using two-dimensional pixel pattern-based active photothermal laser heating in conjunction with subsequent numerical reconstruction to achieve a high-resolution reconstruction of internal defect structures. With the proposed adoption of pixelated patterns generated using laser coupled high-power DLP projector technology the complexity for achieving true two-dimensional super resolution can be dramatically reduced taking a crucial step forward towards widespread practical viability. Furthermore, based on the latest developments in high-power DLP projectors, we present their first application for structured pulsed thermographic inspection of macroscopic metal samples. In addition, a forward solution to the underlying inverse problem is proposed along with an appropriate heuristic to find the regularization parameters necessary for the numerical inversion in a laboratory setting. This allows the generation of synthetic measurement data, opening the door for the application of machine learning based methods for future improvements towards full automation of the method. Finally, the proposed method is experimentally validated and shown to outperform several established conventional thermographic testing techniques while conservatively improving the required measurement times by a factor of 8 compared to currently available photothermal super resolution techniques.
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Affiliation(s)
- Julien Lecompagnon
- Thermographic Methods, Bundesanstalt für Materialforschung und -prüfung (BAM), 12205, Berlin, Germany.
| | - Philipp Daniel Hirsch
- grid.71566.330000 0004 0603 5458Thermographic Methods, Bundesanstalt für Materialforschung und -prüfung (BAM), 12205 Berlin, Germany
| | - Christian Rupprecht
- grid.6734.60000 0001 2292 8254Chair of Coating Technology, Technische Universität Berlin, 10623 Berlin, Germany
| | - Mathias Ziegler
- grid.71566.330000 0004 0603 5458Thermographic Methods, Bundesanstalt für Materialforschung und -prüfung (BAM), 12205 Berlin, Germany
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3
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Wei L, Jiao F, Wang Z, Wu L, Dong D, Chen Y. Enzyme-modulated photothermal immunoassay of chloramphenicol residues in milk and egg using a self-calibrated thermal imager. Food Chem 2022; 392:133232. [PMID: 35636182 DOI: 10.1016/j.foodchem.2022.133232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/18/2022] [Accepted: 05/15/2022] [Indexed: 11/04/2022]
Abstract
Highly sensitive and accurate detection of chloramphenicol is of paramount importance for food safety. Herein, an enzyme-modulated photothermal immunosensor that uses a self-calibrated thermal imaging system (SCTIS) as signal read-out was developed for detecting chloramphenicol. In this immunosensor, alkaline phosphatase was used as a modulator of the photothermal conversion. It could hydrolyze the substrate into ascorbic acid, thereby reducing oxidized 3,3',5,5'-tetramethylbenzidine, which exhibited a near-infrared laser-driven photothermal effect. For precise temperature measurement, the SCTIS was designed by using the temperature compensation of a ceramic chip to enable real-time self-calibration of the temperature. This SCTIS-based immunosensor could detect chloramphenicol with a LOD of 9 pg/mL in 2 h, and relative standard derivations from 3.95% to 13.58%. The average recoveries in milk and egg samples ranged from 76% to 114%. This versatile sensing strategy can detect various targets by altering recognition elements, thus has wide applicability in food safety testing and monitoring.
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Affiliation(s)
- Luyu Wei
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Fu Jiao
- National Engineering Research Center of Intelligent Equipment for Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Zhilong Wang
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China
| | - Long Wu
- Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou 570314, China
| | - Daming Dong
- National Engineering Research Center of Intelligent Equipment for Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China.
| | - Yiping Chen
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China; Hubei HongShan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
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4
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Marini M, Bouzin M, Scodellaro R, D’Alfonso L, Sironi L, Granucci F, Mingozzi F, Chirico G, Collini M. Quantitative active super-resolution thermal imaging: The melanoma case study. Biomol Concepts 2022; 13:242-255. [DOI: 10.1515/bmc-2022-0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/10/2022] [Indexed: 11/15/2022] Open
Abstract
Abstract
Super-resolution image acquisition has turned photo-activated far-infrared thermal imaging into a promising tool for the characterization of biological tissues. By the sub-diffraction localization of sparse temperature increments primed by the sample absorption of modulated focused laser light, the distribution of (endogenous or exogenous) photo-thermal biomarkers can be reconstructed at tunable ∼10−50 μm resolution. We focus here on the theoretical modeling of laser-primed temperature variations and provide the guidelines to convert super-resolved temperature-based images into quantitative maps of the absolute molar concentration of photo-thermal probes. We start from camera-based temperature detection via Stefan–Boltzmann’s law, and elucidate the interplay of the camera point-spread-function and pixelated sensor size with the excitation beam waist in defining the amplitude of the measured temperature variations. This can be accomplished by the numerical solution of the three-dimensional heat equation in the presence of modulated laser illumination on the sample, which is characterized in terms of thermal diffusivity, conductivity, thickness, and concentration of photo-thermal species. We apply our data-analysis protocol to murine B16 melanoma biopsies, where melanin is mapped and quantified in label-free configuration at sub-diffraction 40 µm resolution. Our results, validated by an unsupervised machine-learning analysis of hematoxylin-and-eosin images of the same sections, suggest potential impact of super-resolved thermography in complementing standard histopathological analyses of melanocytic lesions.
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Affiliation(s)
- Mario Marini
- Physics Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 3, 20126 , Milano , Italy
| | - Margaux Bouzin
- Physics Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 3, 20126 , Milano , Italy
| | - Riccardo Scodellaro
- Physics Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 3, 20126 , Milano , Italy
| | - Laura D’Alfonso
- Physics Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 3, 20126 , Milano , Italy
| | - Laura Sironi
- Physics Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 3, 20126 , Milano , Italy
| | - Francesca Granucci
- Biotechnology and Biosciences Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 2, 20126 , Milano , Italy
| | - Francesca Mingozzi
- Biotechnology and Biosciences Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 2, 20126 , Milano , Italy
| | - Giuseppe Chirico
- Physics Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 3, 20126 , Milano , Italy
- CNR Institute for Applied Science and Intelligent Systems , Via Campi Flegrei 34, 80078 , Pozzuoli , Italy
| | - Maddalena Collini
- Physics Department, Università degli Studi di Milano-Bicocca , Piazza Della Scienza 3, 20126 , Milano , Italy
- CNR Institute for Applied Science and Intelligent Systems , Via Campi Flegrei 34, 80078 , Pozzuoli , Italy
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5
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Design and Construction of an LED-Based Excitation Source for Lock-In Thermography. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12062940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Active thermography is an established technique for non-destructive testing and defect localisation. For external excitation, powerful light sources are commonly used. In addition to a high optical output, a good signal shape and response characteristic as well as control ports, which allow for multiple operation modes, are important for active thermography applications. In this work, the schematics for an excitation source based on infrared LEDs is presented. It features multiple control modes for easy integration into existing measurement setups as well as sophisticated control electronics to realize a wide range of excitation patterns. The phase and amplitude stability of this prototype is investigated and compared to the performance of a modulated halogen lamp as well as a halogen lamp and mechanical chopper combination.
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6
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Sedmak I, Podlipec R, Urbančič I, Štrancar J, Mortier M, Golobič I. Spatially Resolved Temperature Distribution in a Rare-Earth-Doped Transparent Glass-Ceramic. SENSORS 2022; 22:s22051970. [PMID: 35271117 PMCID: PMC8914839 DOI: 10.3390/s22051970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 12/12/2022]
Abstract
Knowing the temperature distribution within the conducting walls of various multilayer-type materials is crucial for a better understanding of heat-transfer processes. This applies to many engineering fields, good examples being photovoltaics and microelectronics. In this work we present a novel fluorescence technique that makes possible the non-invasive imaging of local temperature distributions within a transparent, temperature-sensitive, co-doped Er:GPF1Yb0.5Er glass-ceramic with micrometer spatial resolution. The thermal imaging was performed with a high-resolution fluorescence microscopy system, measuring different focal planes along the z-axis. This ultimately enabled a precise axial reconstruction of the temperature distribution across a 500-µm-thick glass-ceramic sample. The experimental measurements showed good agreement with computer-modeled heat simulations and suggest that the technique could be adopted for the spatial analyses of local thermal processes within optically transparent materials. For instance, the technique could be used to measure the temperature distribution of intermediate, transparent layers of novel ultra-high-efficiency solar cells at the micron and sub-micron levels.
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Affiliation(s)
- Ivan Sedmak
- Laboratory for Thermal Technology (LTT), Faculty of Mechanical Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia;
- Correspondence: ; Tel.: +386-1-4771-309
| | - Rok Podlipec
- Ion Beam Center, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, 01328 Dresden, Germany;
- Laboratory of Biophysics, Department of Solid State Physics, Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (I.U.); (J.Š.)
| | - Iztok Urbančič
- Laboratory of Biophysics, Department of Solid State Physics, Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (I.U.); (J.Š.)
| | - Janez Štrancar
- Laboratory of Biophysics, Department of Solid State Physics, Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (I.U.); (J.Š.)
| | - Michel Mortier
- Chimie ParisTech, Institute de Recherche de Chimie Paris, PSL Research University, 75005 Paris, France;
| | - Iztok Golobič
- Laboratory for Thermal Technology (LTT), Faculty of Mechanical Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia;
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7
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Bouzin M, Marini M, Chirico G, Granucci F, Mingozzi F, Colombo R, D'Alfonso L, Sironi L, Collini M. Melanin concentration maps by label-free super-resolution photo-thermal imaging on melanoma biopsies. BIOMEDICAL OPTICS EXPRESS 2022; 13:1173-1187. [PMID: 35414966 PMCID: PMC8973199 DOI: 10.1364/boe.445945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 05/04/2023]
Abstract
Surgical excision followed by histopathological examination is the gold standard for melanoma screening. However, the color-based inspection of hematoxylin-and-eosin-stained biopsies does not provide a space-resolved quantification of the melanin content in melanocytic lesions. We propose a non-destructive photo-thermal imaging method capable of characterizing the microscopic distribution and absolute concentration of melanin pigments in excised melanoma biopsies. By exploiting the photo-thermal effect primed by melanin absorption of visible laser light we obtain label-free super-resolution far-infrared thermal images of tissue sections where melanin is spatially mapped at sub-diffraction 40-μm resolution. Based on the finite-element simulation of the full 3D heat transfer model, we are able to convert temperature maps into quantitative images of the melanin molar concentration on B16 murine melanoma biopsies, with 4·10-4 M concentration sensitivity. Being readily applicable to human melanoma biopsies in combination with hematoxylin-and-eosin staining, the proposed approach could complement traditional histopathology in the characterization of pigmented lesions ex-vivo.
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Affiliation(s)
- Margaux Bouzin
- Physics Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126, Milano, Italy
- Equal contribution
| | - Mario Marini
- Physics Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126, Milano, Italy
- Equal contribution
| | - Giuseppe Chirico
- Physics Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126, Milano, Italy
- CNR Institute for Applied Science and Intelligent Systems, Via Campi Flegrei 34, 80078, Pozzuoli, Italy
| | - Francesca Granucci
- Biotechnology and Biosciences Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Francesca Mingozzi
- Biotechnology and Biosciences Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy
| | - Roberto Colombo
- Department of Earth and Environmental Sciences, Università degli Studi di Milano-Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Laura D'Alfonso
- Physics Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126, Milano, Italy
| | - Laura Sironi
- Physics Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126, Milano, Italy
| | - Maddalena Collini
- Physics Department, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126, Milano, Italy
- CNR Institute for Applied Science and Intelligent Systems, Via Campi Flegrei 34, 80078, Pozzuoli, Italy
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8
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Nanosecond-resolution photothermal dynamic imaging via MHZ digitization and match filtering. Nat Commun 2021; 12:7097. [PMID: 34876556 PMCID: PMC8651735 DOI: 10.1038/s41467-021-27362-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 11/08/2021] [Indexed: 11/17/2022] Open
Abstract
Photothermal microscopy has enabled highly sensitive label-free imaging of absorbers, from metallic nanoparticles to chemical bonds. Photothermal signals are conventionally detected via modulation of excitation beam and demodulation of probe beam using lock-in amplifier. While convenient, the wealth of thermal dynamics is not revealed. Here, we present a lock-in free, mid-infrared photothermal dynamic imaging (PDI) system by MHz digitization and match filtering at harmonics of modulation frequency. Thermal-dynamic information is acquired at nanosecond resolution within single pulse excitation. Our method not only increases the imaging speed by two orders of magnitude but also obtains four-fold enhancement of signal-to-noise ratio over lock-in counterpart, enabling high-throughput metabolism analysis at single-cell level. Moreover, by harnessing the thermal decay difference between water and biomolecules, water background is effectively separated in mid-infrared PDI of living cells. This ability to nondestructively probe chemically specific photothermal dynamics offers a valuable tool to characterize biological and material specimens. Photothermal microscopy is limited for imaging of thermal dynamics. Here, the authors introduce a lock-in free, mid-infrared photothermal dynamic imaging system, which significantly increases SNR and imaging speed, and demonstrate metabolism analysis at single-cell level and background removal.
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9
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Bouzin M, Zeynali A, Marini M, Sironi L, Scodellaro R, D’Alfonso L, Collini M, Chirico G. Multiphoton Laser Fabrication of Hybrid Photo-Activable Biomaterials. SENSORS 2021; 21:s21175891. [PMID: 34502787 PMCID: PMC8433654 DOI: 10.3390/s21175891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 11/16/2022]
Abstract
The possibility to shape stimulus-responsive optical polymers, especially hydrogels, by means of laser 3D printing and ablation is fostering a new concept of “smart” micro-devices that can be used for imaging, thermal stimulation, energy transducing and sensing. The composition of these polymeric blends is an essential parameter to tune their properties as actuators and/or sensing platforms and to determine the elasto-mechanical characteristics of the printed hydrogel. In light of the increasing demand for micro-devices for nanomedicine and personalized medicine, interest is growing in the combination of composite and hybrid photo-responsive materials and digital micro-/nano-manufacturing. Existing works have exploited multiphoton laser photo-polymerization to obtain fine 3D microstructures in hydrogels in an additive manufacturing approach or exploited laser ablation of preformed hydrogels to carve 3D cavities. Less often, the two approaches have been combined and active nanomaterials have been embedded in the microstructures. The aim of this review is to give a short overview of the most recent and prominent results in the field of multiphoton laser direct writing of biocompatible hydrogels that embed active nanomaterials not interfering with the writing process and endowing the biocompatible microstructures with physically or chemically activable features such as photothermal activity, chemical swelling and chemical sensing.
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Affiliation(s)
- Margaux Bouzin
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
| | - Amirbahador Zeynali
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
| | - Mario Marini
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
| | - Laura Sironi
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
| | - Riccardo Scodellaro
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
| | - Laura D’Alfonso
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
| | - Maddalena Collini
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
- Institute for Applied Sciences and Intelligent Systems, CNR, 80078 Pozzuoli, Italy
- Correspondence: (M.C.); (G.C.)
| | - Giuseppe Chirico
- Dipartimento di Fisica, Università degli studi di Milano-Bicocca, 20126 Milano, Italy; (M.B.); (A.Z.); (M.M.); (L.S.); (R.S.); (L.D.)
- Institute for Applied Sciences and Intelligent Systems, CNR, 80078 Pozzuoli, Italy
- Correspondence: (M.C.); (G.C.)
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10
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Ahmadi S, Lecompagnon J, Hirsch PD, Burgholzer P, Jung P, Caire G, Ziegler M. Laser excited super resolution thermal imaging for nondestructive inspection of internal defects. Sci Rep 2020; 10:22357. [PMID: 33349648 PMCID: PMC7752920 DOI: 10.1038/s41598-020-77979-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 11/17/2020] [Indexed: 11/10/2022] Open
Abstract
A photothermal super resolution technique is proposed for an improved inspection of internal defects. To evaluate the potential of the laser-based thermographic technique, an additively manufactured stainless steel specimen with closely spaced internal cavities is used. Four different experimental configurations in transmission, reflection, stepwise and continuous scanning are investigated. The applied image post-processing method is based on compressed sensing and makes use of the block sparsity from multiple measurement events. This concerted approach of experimental measurement strategy and numerical optimization enables the resolution of internal defects and outperforms conventional thermographic inspection techniques.
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Affiliation(s)
- Samim Ahmadi
- Bundesanstalt für Materialforschung und -prüfung (BAM), 12200, Berlin, Germany.
| | - Julien Lecompagnon
- Bundesanstalt für Materialforschung und -prüfung (BAM), 12200, Berlin, Germany
| | | | - Peter Burgholzer
- Research Center for Non Destructive Testing, 4040, Linz, Austria
| | - Peter Jung
- TU Berlin, Communications and Information Theory, 10587, Berlin, Germany
| | - Giuseppe Caire
- TU Berlin, Communications and Information Theory, 10587, Berlin, Germany
| | - Mathias Ziegler
- Bundesanstalt für Materialforschung und -prüfung (BAM), 12200, Berlin, Germany
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11
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O'Brien CM, Meng H, Shmuylovich L, Carpenter J, Gogineni P, Zhang H, Bishop K, Mondal SB, Sudlow GP, Bethea C, Bethea C, Achilefu S. Focal dynamic thermal imaging for label-free high-resolution characterization of materials and tissue heterogeneity. Sci Rep 2020; 10:12549. [PMID: 32724184 PMCID: PMC7387563 DOI: 10.1038/s41598-020-69362-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 07/10/2020] [Indexed: 11/30/2022] Open
Abstract
Evolution from static to dynamic label-free thermal imaging has improved bulk tissue characterization, but fails to capture subtle thermal properties in heterogeneous systems. Here, we report a label-free, high speed, and high-resolution platform technology, focal dynamic thermal imaging (FDTI), for delineating material patterns and tissue heterogeneity. Stimulation of focal regions of thermally responsive systems with a narrow beam, low power, and low cost 405 nm laser perturbs the thermal equilibrium. Capturing the dynamic response of 3D printed phantoms, ex vivo biological tissue, and in vivo mouse and rat models of cancer with a thermal camera reveals material heterogeneity and delineates diseased from healthy tissue. The intuitive and non-contact FDTI method allows for rapid interrogation of suspicious lesions and longitudinal changes in tissue heterogeneity with high-resolution and large field of view. Portable FDTI holds promise as a clinical tool for capturing subtle differences in heterogeneity between malignant, benign, and inflamed tissue.
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Affiliation(s)
- Christine M O'Brien
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Hongyu Meng
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Leonid Shmuylovich
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Julia Carpenter
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Praneeth Gogineni
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Haini Zhang
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Kevin Bishop
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Suman B Mondal
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Gail P Sudlow
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA
| | - Cheryl Bethea
- Quantum Technology Consultants, Inc., 8 Grist Mill Lane, Franklin Park, NJ, 08823, USA
| | - Clyde Bethea
- Quantum Technology Consultants, Inc., 8 Grist Mill Lane, Franklin Park, NJ, 08823, USA
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave., Couch Biomedical Research Building, St. Louis, MO, 63110, USA.
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA.
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA.
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, MO, 63110, USA.
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12
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Wu W, Yu L, Pu Y, Yao H, Chen Y, Shi J. Copper-Enriched Prussian Blue Nanomedicine for In Situ Disulfiram Toxification and Photothermal Antitumor Amplification. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2000542. [PMID: 32162734 DOI: 10.1002/adma.202000542] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/20/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
In situ toxification of less toxic substance for the generation of effective anticarcinogens at the specific tumor tissue has been a novel paradigm for combating cancer. Significant efforts have been recently dedicated to turning clinical-approved drugs into anticancer agents in specific tumor microenvironment by chemical reactions. Herein, a hollow mesoporous Prussian blue (HMPB)-based therapeutic nanoplatform, denoted as DSF@PVP/Cu-HMPB, is constructed by encapsulating alcohol-abuse drug disulfiram (DSF) into the copper-enriched and polyvinylpyrrolidone (PVP)-decorated HMPB nanoparticles to achieve in situ chemical reaction-activated and hyperthermia-amplified chemotherapy of DSF. Upon tumor accumulation of DSF@PVP/Cu-HMPB, the endogenous mild acidity in tumor condition triggers the biodegradation of the HMPB nanoparticle and the concurrent co-releases of DSF and Cu2+ , thus forming cytotoxic bis(N,N-diethyl dithiocarbamato)copper(II) complexes (CuL2 ) via DSF-Cu2+ chelating reaction. Moreover, by the intrinsic photothermal-conversion effect of PVP/Cu-HMPBs, the anticancer effect of DSF is augmented by the hyperthermia generated upon near-infrared irradiation, thus inducing remarkable cell apoptosis in vitro and tumor elimination in vivo on both subcutaneous and orthotopic tumor-bearing models. This strategy of in situ drug transition by chemical chelation reaction and photothermal-augmentation provides a promising paradigm for designing novel cancer-therapeutic nanoplatforms.
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Affiliation(s)
- Wencheng Wu
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Luodan Yu
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Yinying Pu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University Cancer Center, Tongji University School of Medicine, Shanghai, 200072, P. R. China
| | - Heliang Yao
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Yu Chen
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jianlin Shi
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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