Thermal emission spectroscopy for single nanoparticle temperature measurement: optical system design and calibration

Long, Bryan A.; Rodriguez, Daniel J.; Lau, Chris Y.; Anderson, Scott L.

doi:10.1364/ao.58.000642

Cited by 15 publications

(22 citation statements)

References 18 publications

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“…S1). [23][24] Monitoring M vs. time for an NP held in argon buffer gas (2 mTorr) allows the baseline mass loss rate (Rbase) to be measured. For TNP ≥ 1600 K, Rbase is dominated by sublimation (Rsublimation), but at lower TNP there can be noticeable mass loss from reactions with background gasses (e.g.…”

Section: Resultsmentioning

confidence: 99%

High Temperature Oxidation of Single Carbon Nanoparticles: Dependence on Surface Structure, and Probing Real-Time Structural Evolution via Kinetics.

Rodriguez

Lau

Friese

et al. 2022

Preprint

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O2-oxidation and sublimation kinetics for >30 individual nanoparticles (NPs) of five different feedstocks (graphite, graphene oxide, carbon black, diamond, and nano-onion) were measured using single nanoparticle mass spectrometry at temperatures (TNP) in 1100 – 2900 K range. It was found that oxidation, studied in the 1200 to 1600 K range, is highly sensitive to NP sur-face structure, with etching efficiencies (EEO2) varying by up to four orders of magnitude, whereas sublimation rates, significant only for TNP ≥ ~1700 K, varied by only a factor of ~3. Its sensitivity to NP surface structure makes O2 etching a good real-time structure probe, which was used to follow evolution of the NP surface structures over time as they were either etched or an-nealed at high TNP. All types of carbon NPs were found to have initial EEO2 values in the range near 10-3 Da/O2 collision, and all eventually evolved to become essentially inert to O2 (EEO2 < 10-6 Da/O2 collision), however, the dependence of EEO2 on time and mass loss was very different for NPs from different feedstocks. For example, diamond NPs evolved rapidly and monoton-ically toward inertness, and evolution occurred in both oxidizing and inert atmospheres. In contrast, graphite NPs evolved only under oxidizing conditions, and etched with complex time dependence, with multiple waves of fast-but-non-monotonic etching, separated by periods of near-inertness. Possible mechanisms to account for the complex etching behavior are pro-posed.

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Section: Resultsmentioning

confidence: 99%

High Temperature Oxidation of Single Carbon Nanoparticles: Dependence on Surface Structure, and Probing Real-Time Structural Evolution via Kinetics.

Rodriguez

Lau

Friese

et al. 2022

Preprint

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“…and nickel (Alqudami and Annapoorni, 2007;Chi et al, 2015), a recent work performed on semiconducting nanoparticles showed that an enhanced two-photon signal can be observed when the pump frequency is tuned close to a two-photon resonance of the material (Moger et al, 2008), and it cannot be completely excluded that the observed phenomenon is related to the emission of thermal radiation by nanoparticles. In fact, other works highlight the emission of thermal radiation in the spectral region between 400 and 600 nm by metallic nanoparticles subjected to irradiation with pulsed lasers having comparable powers (Estelrich et al, 2018;Long et al, 2019). However, despite the origin of the recorded emission (i.e., thermal radiation), the proposed method allows to localize the position of NDs as the thermal radiation comes exclusively from NDs.…”

Section: Figure 4 | (A)mentioning

confidence: 95%

Au-Coated Ni80Fe20 Submicron Magnetic Nanodisks: Interactions With Tumor Cells

Divieto

Barrera

Celegato

et al. 2020

Front. Nanotechnol.

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Effective interaction and accumulation of nanoparticles (NPs) within tumor cells is crucial for NP-assisted diagnostic and therapeutic biomedical applications. In this context, the shape and size features of NPs can severely influence the strength of adhesion between NPs and cell and the NP internalization mechanisms. This study proved the ability of the PT45 and A549 tumor cells to uptake and retain magnetic Au-coated Ni 80 Fe 20 nanodisks (NDs) prepared by means of a bottom-up self-assembling nanolithography technique assisted by polystyrene nanospheres. The chosen geometrical parameters, i.e., diameter (≈650 nm) and thickness (≈30 nm), give rise to magnetic domain patterns arranged in vortex state at the magnetic remanence. PT45 and A549 cell lines were cultured in the presence of different concentrations of Au-coated Ni 80 Fe 20 nanodisks, and their biocompatibility was evaluated by viability and proliferation tests. Electron microscopy techniques and a combined CARS (Coherent Anti-stokes Raman Scattering) and TPL (two-photon photoluminescence) microscopy allow localizing and distinguishing the NDs within or attached to the tumor cells, without any labeling. A quantitative measurement of ND amount retained within tumor cells as a function of ND concentrations was performed by the Instrumental Neutron Activation Analysis (INAA) characterization technique.

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“…To provide NP temperatures for the kinetics work, we have developed experimental and calibration methods allowing measurements of dispersed emission spectra of single hot NPs in the 10−50 nm size range. 20 Here, we report a study of the effects of material, mass, charge, and thermal history on emission spectroscopy of individual carbon NPs.…”

Section: Introductionmentioning

confidence: 99%

Thermal Emission Spectroscopy of Single, Isolated Carbon Nanoparticles: Effects of Particle Size, Material, Charge, Excitation Wavelength, and Thermal History

et al. 2019

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Results are presented for thermal emission from individual trapped carbon nanoparticles (NPs) in the temperature range from ~1000 to ~2100 K. We explore the effects on the magnitude and wavelength dependence of the emissivity, ϵ(λ), of the NP size and charge, and of the type of carbon material, including graphite, graphene, diamond, carbon black, and carbon dots. In addition, it is found that heating the NPs, particularly to temperatures above ~1900 K, results in significant changes in the emission properties, attributed to changes in the distribution of surface and defect sites caused by annealing and sublimation.

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Thermal emission spectroscopy for single nanoparticle temperature measurement: optical system design and calibration

Cited by 15 publications

References 18 publications

High Temperature Oxidation of Single Carbon Nanoparticles: Dependence on Surface Structure, and Probing Real-Time Structural Evolution via Kinetics.

High Temperature Oxidation of Single Carbon Nanoparticles: Dependence on Surface Structure, and Probing Real-Time Structural Evolution via Kinetics.

Au-Coated Ni80Fe20 Submicron Magnetic Nanodisks: Interactions With Tumor Cells

Thermal Emission Spectroscopy of Single, Isolated Carbon Nanoparticles: Effects of Particle Size, Material, Charge, Excitation Wavelength, and Thermal History

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