Hyperspectral imaging of rare-earth doped nanoparticles emitting in near- and short-wave infrared regions

2018 ◽  
Author(s):  
Artem Yakovliev ◽  
Roman Ziniuk ◽  
Junle Qu ◽  
Tymish Ohulchanskyy
Keyword(s):  
Rare Earth ◽  
Hyperspectral Imaging ◽  
Short Wave ◽  
Short Wave Infrared ◽  
Rare Earth Doped

scholarly journals Rare-Earth-Doped Nanoparticles for Short-Wave Infrared Fluorescence Bioimaging and Molecular Targeting of αVβ3-Expressing Tumors

2018 ◽  
Vol 17 ◽  
pp. 153601211879913 ◽  
Author(s):  
Dominik Jan Naczynski ◽  
Jason H. Stafford ◽  
Silvan Türkcan ◽  
Cesare Jenkins ◽  
Ai Leen Koh ◽  
...  
Keyword(s):  
Rare Earth ◽  
Lymphatic Mapping ◽  
Tumor Model ◽  
Short Wave ◽  
Molecular Targeting ◽  
Photon Scattering ◽  
Tissue Penetration ◽  
Fluorescence Bioimaging ◽  
Short Wave Infrared ◽  
Rare Earth Doped

The use of short-wave infrared (SWIR) light for fluorescence bioimaging offers the advantage of reduced photon scattering and improved tissue penetration compared to traditional shorter wavelength imaging approaches. While several nanomaterials have been shown capable of generating SWIR emissions, rare-earth-doped nanoparticles (REs) have emerged as an exceptionally bright and biocompatible class of SWIR emitters. Here, we demonstrate SWIR imaging of REs for several applications, including lymphatic mapping, real-time monitoring of probe biodistribution, and molecular targeting of the αvβ3 integrin in a tumor model. We further quantified the resolution and depth penetration limits of SWIR light emitted by REs in a customized imaging unit engineered for SWIR imaging of live small animals. Our results indicate that SWIR light has broad utility for preclinical biomedical imaging and demonstrates the potential for molecular imaging using targeted REs.

Rare-earth doped nanocomposites enable multiscale targeted short-wave infrared imaging of metastatic breast cancer

2017 ◽  
Author(s):  
Mark C. Pierce ◽  
Laura M. Higgins ◽  
Vidya Ganapathy ◽  
Harini Kantamneni ◽  
Richard E. Riman ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Rare Earth ◽  
Metastatic Breast Cancer ◽  
Infrared Imaging ◽  
Metastatic Breast ◽  
Short Wave ◽  
Short Wave Infrared ◽  
Rare Earth Doped

Rapid assessment of corn seed viability using short wave infrared line-scan hyperspectral imaging and chemometrics

2018 ◽  
Vol 255 ◽  
pp. 498-507 ◽  
Author(s):  
Collins Wakholi ◽  
Lalit Mohan Kandpal ◽  
Hoonsoo Lee ◽  
Hyungjin Bae ◽  
Eunsoo Park ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Rapid Assessment ◽  
Seed Viability ◽  
Short Wave ◽  
Corn Seed ◽  
Line Scan ◽  
Short Wave Infrared

Comparison of Visible–Near Infrared and Short Wave Infrared hyperspectral imaging for the evaluation of rainbow trout freshness

2014 ◽  
Vol 56 ◽  
pp. 25-34 ◽  
Author(s):  
Mostafa Khojastehnazhand ◽  
Mohammad Hadi Khoshtaghaza ◽  
Barat Mojaradi ◽  
Masoud Rezaei ◽  
Mohammad Goodarzi ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Hyperspectral Imaging ◽  
Near Infrared ◽  
Short Wave ◽  
Short Wave Infrared

scholarly journals 843 Seeing water in the skin: Hyperspectral imaging in the short-wave infrared

2020 ◽  
Vol 140 (7) ◽  
pp. S110
Author(s):  
L. Shmuylovich ◽  
D.K. Mishra ◽  
H. Hurbon ◽  
A. Yu ◽  
T. Du ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Short Wave ◽  
Short Wave Infrared

Assessment of diabetic small‐fiber neuropathy by using short‐wave infrared ( SWIR ) hyperspectral imaging

2021 ◽  
Author(s):  
Yi‐Jing Sheen ◽  
Wayne Huey‐Herng Sheu ◽  
Hsin‐Che Wang ◽  
Jun‐Peng Chen ◽  
Yi‐Hsuan Sun ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Short Wave ◽  
Small Fiber Neuropathy ◽  
Small Fiber ◽  
Short Wave Infrared

FEASIBILITY OF VISIBLE SHORT-WAVE INFRARED REFLECTANCE SPECTROSCOPY TO CHARACTERIZE REGOLITH-HOSTED RARE EARTH ELEMENT MINERALIZATION

2021 ◽  
Author(s):  
Wei Tan ◽  
Xiaorong Qin ◽  
Jiacheng Liu ◽  
Mei-Fu Zhou ◽  
Hongping He ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Short Wave ◽  
Chemical Compositions ◽  
Infrared Reflectance ◽  
Spectral Parameters ◽  
Ree Mineralization ◽  
Abrupt Changes ◽  
Short Wave Infrared

Abstract Regolith-hosted rare earth element (REE) deposits predominate global resources of heavy REEs. Regoliths are underlain by various types of igneous rocks and do not always host economically valuable deposits. Thus a feasible and convenient method is desired to identify REE mineralization in a particular regolith. This study presents a detailed visible short-wave infrared reflectance (VSWIR) spectroscopic study of the Renju regolith-hosted REE deposit, South China, to provide diagnostic parameters for targeting REE orebodies in regoliths. The results show that the spectral parameters, M794_2nd and M800_2nd, derived from the VSWIR absorption of Nd3+ at approximately 800 nm, can be effectively used to estimate the total REE concentrations in regolith profiles. M1396_2nd/M1910_2nd ratios can serve as proxies to evaluate weathering intensities in a regolith. Abrupt changes of specific spectral features related to mineral abundances, chemical compositions, and weathering intensities can be correlated with variations of protolith that formed a regolith. These VSWIR proxies are robust and can be used for exploration of regolith-hosted REE deposits.

scholarly journals Surface Investigation of Photo-Degraded Wood by Colour Monitoring, Infrared Spectroscopy, and Hyperspectral Imaging

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
Giorgia Agresti ◽  
Giuseppe Bonifazi ◽  
Luca Calienno ◽  
Giuseppe Capobianco ◽  
Angela Lo Monaco ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Hyperspectral Imaging ◽  
Near Infrared ◽  
Infrared Region ◽  
Short Wave ◽  
Infrared Range ◽  
Surface Chemical ◽  
Colour Changes ◽  
Short Wave Infrared ◽  
Near Infrared Range

The aim of this investigation is to study the changes occurring on the surface of poplar wood exposed to artificial irradiation in a Solar Box. Colour changes were monitored with a reflectance spectrophotometer. Surface chemical modifications were evaluated by measuring the infrared spectra. Hyperspectral imaging was also applied to study the surface wood changes in the visible-near infrared and the short wave infrared wavelength ranges. The data obtained from the different techniques were compared to find the possible correlations in order to evaluate the applicability of the Hyperspectral imaging to investigate wood modifications in a non-invasive modality. The study of colour changes showed an important variation due to photo-irradiation which is the greatest change occurring within the first 24 hours. Infrared spectroscopy revealed that lignin degrades mainly in the first 48 hours. Concerning Hyperspectral imaging, the spectral features in the visible-near infrared range are mainly linked to the spectral shape, whereas in the short wave infrared cellulose and lignin affect shape and reflectance levels. The proposed approach showed that a correlation can be established between colour variation and wood degradation in the visible-near infrared range; furthermore in the short wave infrared region surface chemical changes can be assessed.

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