Heating efficiency of multi-walled carbon nanotubes in the first and second biological windows

Laura Martinez Maestro; Patricia Haro-Gonzalez; Blanca del Rosal; Julio Ramiro; A. J. Caamano; Elisa Carrasco; Angeles Juarranz; Francisco Sanz-Rodriguez; Jose Garcia Sole; Daniel Jaque

doi:10.1039/c3nr01398g

Heating efficiency of multi-walled carbon nanotubes in the first and second biological windows

Laura Martinez Maestro, Patricia Haro-Gonzalez, Blanca del Rosal, Julio Ramiro, A. J. Caamano, Elisa Carrasco, Angeles Juarranz, Francisco Sanz-Rodriguez, Jose Garcia Sole, Daniel Jaque

Research output: Contribution to journal › Article › peer-review

Abstract

Quantum dot based-thermometry, in combination with double beam confocal microscopy and infrared thermal imaging, has been used to investigate the heating efficiency of multi-walled carbon nanotubes (MWCNTs) under optical excitation within the first (808 nm) and second (1090 nm) biological windows as well as in the spectral region separating them (980 nm). It has been found that for the three excitation wavelengths the heating efficiency of MWCNTs (10 nm in diameter and 1.5 μm in length) is close to 50%. Despite this "flat" heating efficiency, we have found that the excitation wavelength is, indeed, critical during in vivo experiments due to the spectral dependence of both tissue absorption and scattering coefficients. It has been concluded that efficiency and selectivity of in vivo photothermal treatments based on MWCNTs are simultaneously optimized when laser irradiation lies within the first or second biological window.

Original language	English
Pages (from-to)	7882-7889
Number of pages	8
Journal	Nanoscale
Volume	5
Issue number	17
DOIs	https://doi.org/10.1039/c3nr01398g
Publication status	Published - 2013

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title = "Heating efficiency of multi-walled carbon nanotubes in the first and second biological windows",

abstract = "Quantum dot based-thermometry, in combination with double beam confocal microscopy and infrared thermal imaging, has been used to investigate the heating efficiency of multi-walled carbon nanotubes (MWCNTs) under optical excitation within the first (808 nm) and second (1090 nm) biological windows as well as in the spectral region separating them (980 nm). It has been found that for the three excitation wavelengths the heating efficiency of MWCNTs (10 nm in diameter and 1.5 μm in length) is close to 50%. Despite this {"}flat{"} heating efficiency, we have found that the excitation wavelength is, indeed, critical during in vivo experiments due to the spectral dependence of both tissue absorption and scattering coefficients. It has been concluded that efficiency and selectivity of in vivo photothermal treatments based on MWCNTs are simultaneously optimized when laser irradiation lies within the first or second biological window.",

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year = "2013",

doi = "10.1039/c3nr01398g",

language = "English",

volume = "5",

pages = "7882--7889",

journal = "Nanoscale",

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TY - JOUR

T1 - Heating efficiency of multi-walled carbon nanotubes in the first and second biological windows

AU - Martinez Maestro, Laura

AU - Haro-Gonzalez, Patricia

AU - del Rosal, Blanca

AU - Ramiro, Julio

AU - Caamano, A. J.

AU - Carrasco, Elisa

AU - Juarranz, Angeles

AU - Sanz-Rodriguez, Francisco

AU - Garcia Sole, Jose

AU - Jaque, Daniel

PY - 2013

Y1 - 2013

N2 - Quantum dot based-thermometry, in combination with double beam confocal microscopy and infrared thermal imaging, has been used to investigate the heating efficiency of multi-walled carbon nanotubes (MWCNTs) under optical excitation within the first (808 nm) and second (1090 nm) biological windows as well as in the spectral region separating them (980 nm). It has been found that for the three excitation wavelengths the heating efficiency of MWCNTs (10 nm in diameter and 1.5 μm in length) is close to 50%. Despite this "flat" heating efficiency, we have found that the excitation wavelength is, indeed, critical during in vivo experiments due to the spectral dependence of both tissue absorption and scattering coefficients. It has been concluded that efficiency and selectivity of in vivo photothermal treatments based on MWCNTs are simultaneously optimized when laser irradiation lies within the first or second biological window.

AB - Quantum dot based-thermometry, in combination with double beam confocal microscopy and infrared thermal imaging, has been used to investigate the heating efficiency of multi-walled carbon nanotubes (MWCNTs) under optical excitation within the first (808 nm) and second (1090 nm) biological windows as well as in the spectral region separating them (980 nm). It has been found that for the three excitation wavelengths the heating efficiency of MWCNTs (10 nm in diameter and 1.5 μm in length) is close to 50%. Despite this "flat" heating efficiency, we have found that the excitation wavelength is, indeed, critical during in vivo experiments due to the spectral dependence of both tissue absorption and scattering coefficients. It has been concluded that efficiency and selectivity of in vivo photothermal treatments based on MWCNTs are simultaneously optimized when laser irradiation lies within the first or second biological window.

U2 - 10.1039/c3nr01398g

DO - 10.1039/c3nr01398g

M3 - Article

SN - 2040-3364

VL - 5

SP - 7882

EP - 7889

JO - Nanoscale

JF - Nanoscale

IS - 17

ER -

Heating efficiency of multi-walled carbon nanotubes in the first and second biological windows

Abstract

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