Rugged nanoparticle tracers for mass tracking in explosive events

Hubbard, Lance; Sumner, Ryan; Liezers, Martin; Cell, Trevor; Reed, Clara; Uhnak, Nicolas; Allen, Caleb; Berry, Brittney; Currah, Hugh; Fuller, Erin S.; Kinney, Erin; Smith, Nathaniel; Foxe, Michael; Carman, April J.

doi:10.1557/mrc.2020.70

Cited by 4 publications

(10 citation statements)

References 15 publications

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“…[1][2][3] The authors have reported previously on the survivability of ruggedized particulate tracers during explosions. [4] Present results inform the survivability of silica-coated luminescent tracer particles in the environment as well as synthesis paths to control particle size while maintaining luminescent intensity. The ability to control particle size and emissive color, and to ensure the tracer's long-lasting endurance provides an elegant solution for tracking mass through harsh environments.…”

Section: Introductionsupporting

confidence: 52%

“…In previous work, shielding zinc sulfide (ZnS:Mn) quantum dots in 100-nm-thick silica shells lead to a two-to-three-fold increase in luminescent intensity post-explosion when compared to bare quantum dots. [4] As previously reported results have explored the ruggedization of silica-covered ZnS:Mn quantum-dot tracers, this work expands the scope to explore the environmental endurance of the ruggedized tracers.…”

Section: Introductionmentioning

confidence: 75%

“…3(a). In this comparison, 100-nmdiameter silica-covered particles around manganese-doped zinc sulfide quantum dots, which had been molecularly bonded to 485-nm-emitting commercial strontium aluminate in deionized water, [4] were compared over 2 years. Peaks associated with the inner quantum dots [20] were seen to be enhanced while the emission peak of the aluminate at 485 nm remained constant.…”

Section: Resultsmentioning

confidence: 99%

“…The quantum-dot synthesis followed a previously published method. [4] The synthesis method is briefly described as follows.…”

Section: Luminescent Nanoparticle Synthesismentioning

confidence: 99%

“…Moving from an organicbased tracer to a particulate such as inorganic quantum dots can increase the survivability of a tracer but still lead to large degradations as the environment directly attacks the particulates. [4] To increase a tracer's environmental endurance, a chemically inert, signal-transmissive layer can be added to protect the tracer from the hostile environment (i.e., serve as a shield). This layer of the tracer protects the inner signal-producing portion while allowing the signal to be received during sampling and debris analysis.…”

Section: Introductionmentioning

confidence: 99%

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Luminescent silica microagglomerates, synthesis, and environmental testing

et al. 2022

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Tracking mass through harsh environments requires surrogate particles that withstand the event and endure until sampling. Silica-covered quantum dots have been shown to withstand a range of environmental pHs from months to years; in this work they are shown to endure in anticipated local environments. Two methods of particle synthesis were employed to produce luminescent silica with particle diameters 0.1–4 μm. These tracer particles scale for mass production, tolerate harsh environments, and endure in debris. They could be deployed in places such as chemical explosions, industrial processes, geologic test beds, oil and gas fields, nuclear reactors, and geothermal plants to track mass under harsh conditions. Graphical abstract

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Section: Introductionsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

“…The quantum-dot synthesis followed a previously published method. [4] The synthesis method is briefly described as follows.…”

Section: Luminescent Nanoparticle Synthesismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Luminescent silica microagglomerates, synthesis, and environmental testing

et al. 2022

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Interpol review of the analysis and detection of explosives and explosives residues

Klapec

Czarnopys

Pannuto

2023

Forensic Science International: Synergy

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Detection of SARS-COV-2 by functionally imprinted micelles

et al. 2022

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The near real-time detection of airborne particles-of-interest is needed for avoiding current/future threats. The incorporation of imprinted particles into a micelle-based electrochemical cell produced a signal when brought into contact with particle analytes (such as SARS-COV-2), previously imprinted onto the structure. Nanoamp scales of signals were generated from what may’ve been individual virus-micelle interactions. The system showed selectivity when tested against similar size and morphology particles. The technology was compatible with airborne aerosol sampling techniques. Overall, the application of imprinted micelle technology could provide near real-time detection methods to a host of possible analytes of interest in the field. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1557/s43579-022-00242-0.

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Rugged nanoparticle tracers for mass tracking in explosive events

Abstract: Abstract

Cited by 4 publications

References 15 publications

Luminescent silica microagglomerates, synthesis, and environmental testing

Luminescent silica microagglomerates, synthesis, and environmental testing

Interpol review of the analysis and detection of explosives and explosives residues

Detection of SARS-COV-2 by functionally imprinted micelles

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