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Johansson JD, Portaluppi D, Buttafava M, Villa F. A multipixel diffuse correlation spectroscopy system based on a single photon avalanche diode array. JOURNAL OF BIOPHOTONICS 2019; 12:e201900091. [PMID: 31339649 DOI: 10.1002/jbio.201900091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/19/2019] [Accepted: 07/21/2019] [Indexed: 05/21/2023]
Abstract
The autocorrelation of laser speckles from coherent near infrared light is used for noninvasive estimates of relative changes in blood perfusion in techniques such as laser Doppler flowmetry (LDF) and diffuse correlation spectroscopy (DCS). In this study, a 2D array of single photon avalanche diodes (SPADs) was used to combine the strengths of multiple detectors in LDF with high light sensitivity in DCS. The system was tested on milk phantoms with varying detector fiber diameter (200 and 600 μm), source-detector fiber separation (4.6-10.2 mm), fiber-SPAD distance (2.5-36.5 mm), contiguous measurement time per repetition for the autocorrelation (1-33 ms) and temperature (15.6-46.7°C). An in vivo blood occlusion test was also performed. The multipixel approach improved signal-to-noise ratio (SNR) and, in our setup, the use of a multimode detector fiber was beneficial for SNR. In conclusion, the multipixel system works, but improvements and further studies regarding, for example, the data acquisition and optimal settings are still needed.
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Affiliation(s)
| | - Davide Portaluppi
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy
| | - Mauro Buttafava
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy
| | - Federica Villa
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy
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Mireles M, Morales-Dalmau J, Johansson JD, Vidal-Rosas EE, Vilches C, Martínez-Lozano M, Sanz V, de Miguel I, Casanovas O, Quidant R, Durduran T. Non-invasive and quantitative in vivo monitoring of gold nanoparticle concentration and tissue hemodynamics by hybrid optical spectroscopies. NANOSCALE 2019; 11:5595-5606. [PMID: 30860518 DOI: 10.1039/c8nr08790c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Owing to their unique combination of chemical and physical properties, inorganic nanoparticles show a great deal of potential as suitable agents for early diagnostics and less invasive therapies. Yet, their translation to the clinic has been hindered, in part, by the lack of non-invasive methods to quantify their concentration in vivo while also assessing their effect on the tissue physiology. In this work, we demonstrate that diffuse optical techniques, employing near-infrared light, have the potential to address this need in the case of gold nanoparticles which support localized surface plasmons. An orthoxenograft mouse model of clear cell renal cell carcinoma was non-invasively assessed by diffuse reflectance and correlation spectroscopies before and over several days following a single intravenous tail vein injection of polyethylene glycol-coated gold nanorods (AuNRs-PEG). Our platform enables to resolve the kinetics of the AuNR-PEG uptake by the tumor in quantitative agreement with ex vivo inductively coupled plasma mass spectroscopy. Furthermore, it allows for the simultaneous monitoring of local tissue hemodynamics, enabling us to conclude that AuNRs-PEG do not significantly alter the animal physiology. We note that the penetration depth of this current probe was a few millimeters but can readily be extended to centimeters, hence gaining clinical relevance. This study and the methodology presented here complement the nanomedicine toolbox by providing a flexible platform, extendable to other absorbing agents that can potentially be translated to human trials.
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Affiliation(s)
- Miguel Mireles
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.
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3
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Morales-Dalmau J, Vilches C, de Miguel I, Sanz V, Quidant R. Optimum morphology of gold nanorods for light-induced hyperthermia. NANOSCALE 2018; 10:2632-2638. [PMID: 29355866 DOI: 10.1039/c7nr06825e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Owing to their unique chemical and physical properties, colloidal gold nanoparticles have prompted a wide variety of biocompatible nano-agents for cancer imaging, diagnosis and treatment. In this context, biofunctionalized gold nanorods (AuNRs) are promising candidates for light-induced hyperthermia, to cause local and selective damage in malignant tissue. Yet, the efficacy of AuNR-based hyperthermia is highly dependent on several experimental parameters; in particular, the AuNR morphology strongly affects both physical and biological processes. In the present work, we systematically study the influence of different structural parameters like the AuNR aspect ratio, length and molecular weight on in vitro cytotoxicity, cellular uptake and heat generation efficiency. Our results enable us to identify the optimum AuNR morphology to be used for in vivo hyperthermia treatment.
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Affiliation(s)
- Jordi Morales-Dalmau
- ICFO - Institut de Ciències Fotòniques, the Barcelona Institute of Science and Technology, 08860 Barcelona, Spain.
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4
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Farzam P, Johansson J, Mireles M, Jiménez-Valerio G, Martínez-Lozano M, Choe R, Casanovas O, Durduran T. Pre-clinical longitudinal monitoring of hemodynamic response to anti-vascular chemotherapy by hybrid diffuse optics. BIOMEDICAL OPTICS EXPRESS 2017; 8:2563-2582. [PMID: 28663891 PMCID: PMC5480498 DOI: 10.1364/boe.8.002563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 03/20/2017] [Accepted: 03/30/2017] [Indexed: 05/20/2023]
Abstract
The longitudinal effect of an anti-vascular endothelial growth factor receptor 2 (VEGFR-2) antibody (DC 101) therapy on a xenografted renal cell carcinoma (RCC) mouse model was monitored using hybrid diffuse optics. Two groups of immunosuppressed male nude mice (seven treated, seven controls) were measured. Tumor microvascular blood flow, total hemoglobin concentration and blood oxygenation were investigated as potential biomarkers for the monitoring of the therapy effect twice a week and were related to the final treatment outcome. These hemodynamic biomarkers have shown a clear differentiation between two groups by day four. Moreover, we have observed that pre-treatment values and early changes in hemodynamics are highly correlated with the therapeutic outcome demonstrating the potential of diffuse optics to predict the therapy response at an early time point.
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Affiliation(s)
- Parisa Farzam
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Sciences and Technology, 08860, Castelldefels (Barcelona),
Spain
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129,
USA
| | - Johannes Johansson
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Sciences and Technology, 08860, Castelldefels (Barcelona),
Spain
- Department of Biomedical Engineering, Linköping University, 58185 Linköping,
Sweden
| | - Miguel Mireles
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Sciences and Technology, 08860, Castelldefels (Barcelona),
Spain
| | - Gabriela Jiménez-Valerio
- Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology, Bellvitge Biomedical Research Institute – IDIBELL, 08908, L’Hospitalet de Llobregat (Barcelona),
Spain
| | - Mar Martínez-Lozano
- Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology, Bellvitge Biomedical Research Institute – IDIBELL, 08908, L’Hospitalet de Llobregat (Barcelona),
Spain
| | - Regine Choe
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Oriol Casanovas
- Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology, Bellvitge Biomedical Research Institute – IDIBELL, 08908, L’Hospitalet de Llobregat (Barcelona),
Spain
| | - Turgut Durduran
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Sciences and Technology, 08860, Castelldefels (Barcelona),
Spain
- Instituciò Catalana de Recerca i Estudis Avançats (ICREA), 08015, Barcelona,
Spain
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Rejmstad P, Johansson JD, Haj-Hosseini N, Wårdell K. A method for monitoring of oxygen saturation changes in brain tissue using diffuse reflectance spectroscopy. JOURNAL OF BIOPHOTONICS 2017; 10:446-455. [PMID: 27094015 DOI: 10.1002/jbio.201500334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/26/2016] [Accepted: 03/22/2016] [Indexed: 05/09/2023]
Abstract
Continuous measurement of local brain oxygen saturation (SO2 ) can be used to monitor the status of brain trauma patients in the neurocritical care unit. Currently, micro-oxygen-electrodes are considered as the "gold standard" in measuring cerebral oxygen pressure (pO2 ), which is closely related to SO2 through the oxygen dissociation curve (ODC) of hemoglobin, but with the drawback of slow in response time. The present study suggests estimation of SO2 in brain tissue using diffuse reflectance spectroscopy (DRS) for finding an analytical relation between measured spectra and the SO2 for different blood concentrations. The P3 diffusion approximation is used to generate a set of spectra simulating brain tissue for various levels of blood concentrations in order to estimate SO2 . The algorithm is evaluated on optical phantoms mimicking white brain matter (blood volume of 0.5-2%) where pO2 and temperature is controlled and on clinical data collected during brain surgery. The suggested method is capable of estimating the blood fraction and oxygen saturation changes from the spectroscopic signal and the hemoglobin absorption profile.
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Affiliation(s)
- Peter Rejmstad
- Department of Biomedical Engineering, Linköping University, 581 83, LINKÖPING, Sweden
| | - Johannes D Johansson
- Department of Biomedical Engineering, Linköping University, 581 83, LINKÖPING, Sweden
| | - Neda Haj-Hosseini
- Department of Biomedical Engineering, Linköping University, 581 83, LINKÖPING, Sweden
| | - Karin Wårdell
- Department of Biomedical Engineering, Linköping University, 581 83, LINKÖPING, Sweden
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Ramirez G, Proctor AR, Jung KW, Wu TT, Han S, Adams RR, Ren J, Byun DK, Madden KS, Brown EB, Foster TH, Farzam P, Durduran T, Choe R. Chemotherapeutic drug-specific alteration of microvascular blood flow in murine breast cancer as measured by diffuse correlation spectroscopy. BIOMEDICAL OPTICS EXPRESS 2016; 7:3610-3630. [PMID: 27699124 PMCID: PMC5030036 DOI: 10.1364/boe.7.003610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 05/08/2023]
Abstract
The non-invasive, in vivo measurement of microvascular blood flow has the potential to enhance breast cancer therapy monitoring. Here, longitudinal blood flow of 4T1 murine breast cancer (N=125) under chemotherapy was quantified with diffuse correlation spectroscopy based on layer models. Six different treatment regimens involving doxorubicin, cyclophosphamide, and paclitaxel at clinically relevant doses were investigated. Treatments with cyclophosphamide increased blood flow as early as 3 days after administration, whereas paclitaxel induced a transient blood flow decrease at 1 day after administration. Early blood flow changes correlated strongly with the treatment outcome and distinguished treated from untreated mice individually for effective treatments.
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Affiliation(s)
- Gabriel Ramirez
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Ashley R. Proctor
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Ki Won Jung
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Tong Tong Wu
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY 14642,
USA
| | - Songfeng Han
- The Institute of Optics, University of Rochester, Rochester, NY 14627,
USA
| | - Russell R. Adams
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Jingxuan Ren
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Daniel K. Byun
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Kelley S. Madden
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Edward B. Brown
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
| | - Thomas H. Foster
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
- The Institute of Optics, University of Rochester, Rochester, NY 14627,
USA
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY 14642,
USA
| | - Parisa Farzam
- ICFO- Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona),
Spain
| | - Turgut Durduran
- ICFO- Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona),
Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08015 Barcelona,
Spain
| | - Regine Choe
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627,
USA
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY 14627,
USA
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Han S, Proctor AR, Vella JB, Benoit DSW, Choe R. Non-invasive diffuse correlation tomography reveals spatial and temporal blood flow differences in murine bone grafting approaches. BIOMEDICAL OPTICS EXPRESS 2016; 7:3262-3279. [PMID: 27699097 PMCID: PMC5030009 DOI: 10.1364/boe.7.003262] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/30/2016] [Accepted: 07/31/2016] [Indexed: 05/16/2023]
Abstract
Longitudinal blood flow during murine bone graft healing was monitored non-invasively using diffuse correlation tomography. The system utilized spatially dense data from a scanning set-up, non-linear reconstruction, and micro-CT anatomical information. Weekly in vivo measurements were performed. Blood flow changes in autografts, which heal successfully, were localized to graft regions and consistent across mice. Poor healing allografts showed heterogeneous blood flow elevation and high inter-subject variabilities. Allografts with tissue-engineered periosteum showed responses intermediate to both autografts and allografts, consistent with healing observed. These findings suggest that spatiotemporal blood flow changes can be utilized to differentiate the degree of bone graft healing.
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Affiliation(s)
- Songfeng Han
- Institute of Optics, University of Rochester, Rochester, NY 14627, USA
| | - Ashley R. Proctor
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627, USA
| | - Joseph B. Vella
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Danielle S. W. Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA
- Department of Chemical Engineering, University of Rochester, Rochester, NY 14627, USA
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Regine Choe
- Department of Biomedical Engineering, University of Rochester, Rochester, NY 14627, USA
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY 14627, USA
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