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 journalArticle

4 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)340-352
Number of pages13
JournalApplied Spectroscopy
Volume68
Issue number3
DOIs
StatePublished - Mar 1 2014

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Nanoparticles
Infrared radiation
nanoparticles
Band structure
energy bands
Energy gap
Salts
salts
Deoxycholic Acid
heat generation
Heat generation
Temperature
Anions
Cations
Coloring Agents
Negative ions
Dyes
dyes
Positive ions
Tissue

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Spectroscopy

Cite this

Dumke, J. C., Qureshi, A., Hamdan, S., El-Zahab, B., Das, S., Hayes, D. J., ... Warner, I. M. (2014). Photothermal response of near-infrared-absorbing nanoGUMBOS. Applied Spectroscopy, 68(3), 340-352. https://doi.org/10.1366/13-07268
Dumke, Jonathan C. ; Qureshi, Ammar ; Hamdan, Suzana ; El-Zahab, Bilal ; Das, Susmita ; Hayes, Daniel J. ; Boldor, Dorin ; Rupnik, Kresimir ; Warner, Isiah M. / Photothermal response of near-infrared-absorbing nanoGUMBOS. In: Applied Spectroscopy. 2014 ; Vol. 68, No. 3. pp. 340-352.
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Dumke, JC, Qureshi, A, Hamdan, S, El-Zahab, B, Das, S, Hayes, DJ, Boldor, D, Rupnik, K & Warner, IM 2014, 'Photothermal response of near-infrared-absorbing nanoGUMBOS', Applied Spectroscopy, vol. 68, no. 3, pp. 340-352. https://doi.org/10.1366/13-07268

Photothermal response of near-infrared-absorbing nanoGUMBOS. / Dumke, Jonathan C.; Qureshi, Ammar; Hamdan, Suzana; El-Zahab, Bilal; Das, Susmita; Hayes, Daniel J.; Boldor, Dorin; Rupnik, Kresimir; Warner, Isiah M.

In: Applied Spectroscopy, Vol. 68, No. 3, 01.03.2014, p. 340-352.

Research output: Contribution to journalArticle

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Dumke JC, Qureshi A, Hamdan S, El-Zahab B, Das S, Hayes DJ et al. Photothermal response of near-infrared-absorbing nanoGUMBOS. Applied Spectroscopy. 2014 Mar 1;68(3):340-352. https://doi.org/10.1366/13-07268