Photothermal response of near-infrared-absorbing nanoGUMBOS

Jonathan C. Dumke; Ammar Qureshi; Suzana Hamdan; Bilal El-Zahab; Susmita Das; Daniel J. Hayes; Dorin Boldor; Kresimir Rupnik; Isiah M. Warner

doi:10.1366/13-07268

Photothermal response of near-infrared-absorbing nanoGUMBOS

Jonathan C. Dumke, Ammar Qureshi, Suzana Hamdan, Bilal El-Zahab, Susmita Das, Daniel J. Hayes, Dorin Boldor, Kresimir Rupnik, Isiah M. Warner

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

5 Scopus citations

Abstract

The photothermal properties of several near-infrared-absorbing nanoparticles derived from group of uniform materials based on organic salts (GUMBOS) and composed of cationic dyes coupled with biocompatible anions are evaluated. These nanoparticles were synthesized using a reprecipitation method performed at various pH values: 2.0, 5.0, 7.0, 9.0, and 11.0. The cations for the nanoparticles derived from GUMBOS (nanoGUMBOS), [1048] and [1061], have absorbance maxima at wavelengths overlapping with human soft tissue absorbance minima. Near-infrared-absorbing nanoGUMBOS excited with a 1064 nm continuous laser led to heat generation, with an average temperature increase of 20.4 ± 2.7 °C. Although the [1061][Deoxycholate] nanoGUMBOS generated the highest temperature increase (23.7 ± 2.4 °C), it was the least photothermally efficient compound (13.0%) due to its relatively large energy band gap of 0.892 eV. The more photothermally efficient compound [1048][Ascorbate] (64.4%) had a smaller energy band gap of 0.861 eV and provided an average photothermal temperature increase of 21.0 ± 2.1 °C.

Original language	English (US)
Pages (from-to)	340-352
Number of pages	13
Journal	Applied Spectroscopy
Volume	68
Issue number	3
DOIs	https://doi.org/10.1366/13-07268
State	Published - Mar 2014

All Science Journal Classification (ASJC) codes

Instrumentation
Spectroscopy

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@article{a5f8f472ab44422fbb76144e8268e7eb,

title = "Photothermal response of near-infrared-absorbing nanoGUMBOS",

abstract = "The photothermal properties of several near-infrared-absorbing nanoparticles derived from group of uniform materials based on organic salts (GUMBOS) and composed of cationic dyes coupled with biocompatible anions are evaluated. These nanoparticles were synthesized using a reprecipitation method performed at various pH values: 2.0, 5.0, 7.0, 9.0, and 11.0. The cations for the nanoparticles derived from GUMBOS (nanoGUMBOS), [1048] and [1061], have absorbance maxima at wavelengths overlapping with human soft tissue absorbance minima. Near-infrared-absorbing nanoGUMBOS excited with a 1064 nm continuous laser led to heat generation, with an average temperature increase of 20.4 ± 2.7 °C. Although the [1061][Deoxycholate] nanoGUMBOS generated the highest temperature increase (23.7 ± 2.4 °C), it was the least photothermally efficient compound (13.0%) due to its relatively large energy band gap of 0.892 eV. The more photothermally efficient compound [1048][Ascorbate] (64.4%) had a smaller energy band gap of 0.861 eV and provided an average photothermal temperature increase of 21.0 ± 2.1 °C.",

author = "Dumke, {Jonathan C.} and Ammar Qureshi and Suzana Hamdan and Bilal El-Zahab and Susmita Das and Hayes, {Daniel J.} and Dorin Boldor and Kresimir Rupnik and Warner, {Isiah M.}",

year = "2014",

month = mar,

doi = "10.1366/13-07268",

language = "English (US)",

volume = "68",

pages = "340--352",

journal = "Applied Spectroscopy",

issn = "0003-7028",

publisher = "Society for Applied Spectroscopy",

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T1 - Photothermal response of near-infrared-absorbing nanoGUMBOS

AU - Dumke, Jonathan C.

AU - Qureshi, Ammar

AU - Hamdan, Suzana

AU - El-Zahab, Bilal

AU - Das, Susmita

AU - Hayes, Daniel J.

AU - Boldor, Dorin

AU - Rupnik, Kresimir

AU - Warner, Isiah M.

PY - 2014/3

Y1 - 2014/3

N2 - The photothermal properties of several near-infrared-absorbing nanoparticles derived from group of uniform materials based on organic salts (GUMBOS) and composed of cationic dyes coupled with biocompatible anions are evaluated. These nanoparticles were synthesized using a reprecipitation method performed at various pH values: 2.0, 5.0, 7.0, 9.0, and 11.0. The cations for the nanoparticles derived from GUMBOS (nanoGUMBOS), [1048] and [1061], have absorbance maxima at wavelengths overlapping with human soft tissue absorbance minima. Near-infrared-absorbing nanoGUMBOS excited with a 1064 nm continuous laser led to heat generation, with an average temperature increase of 20.4 ± 2.7 °C. Although the [1061][Deoxycholate] nanoGUMBOS generated the highest temperature increase (23.7 ± 2.4 °C), it was the least photothermally efficient compound (13.0%) due to its relatively large energy band gap of 0.892 eV. The more photothermally efficient compound [1048][Ascorbate] (64.4%) had a smaller energy band gap of 0.861 eV and provided an average photothermal temperature increase of 21.0 ± 2.1 °C.

AB - The photothermal properties of several near-infrared-absorbing nanoparticles derived from group of uniform materials based on organic salts (GUMBOS) and composed of cationic dyes coupled with biocompatible anions are evaluated. These nanoparticles were synthesized using a reprecipitation method performed at various pH values: 2.0, 5.0, 7.0, 9.0, and 11.0. The cations for the nanoparticles derived from GUMBOS (nanoGUMBOS), [1048] and [1061], have absorbance maxima at wavelengths overlapping with human soft tissue absorbance minima. Near-infrared-absorbing nanoGUMBOS excited with a 1064 nm continuous laser led to heat generation, with an average temperature increase of 20.4 ± 2.7 °C. Although the [1061][Deoxycholate] nanoGUMBOS generated the highest temperature increase (23.7 ± 2.4 °C), it was the least photothermally efficient compound (13.0%) due to its relatively large energy band gap of 0.892 eV. The more photothermally efficient compound [1048][Ascorbate] (64.4%) had a smaller energy band gap of 0.861 eV and provided an average photothermal temperature increase of 21.0 ± 2.1 °C.

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Photothermal response of near-infrared-absorbing nanoGUMBOS

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