Optical thermometry, latent fingerprint detection and anti-counterfeiting based on upconversion emission in Ho3+/Yb3+ doped KYF4 nanoparticles

Shwetabh, Kumar; Sarkar, Minarul I.; Kumar, K.

doi:10.1016/j.optmat.2023.114395

Cited by 4 publications

(1 citation statement)

References 33 publications

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“…The two major parameters called absolute and relative sensitivity are calculated using the relations given in equations ( 8) and ( 9) respectively [37,45,46]:…”

Section: Optical Thermometrymentioning

confidence: 99%

Assessment of NIR-triggered PEG-coated NaGdF₄:Tm³⁺/Yb³⁺ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry

Shwetabh,

Banerjee,

Poddar

et al. 2024

Biomed. Mater.

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In this investigation, we embarked on the synthesis of polyethylene glycol coated NaGdF4:Tm3+/Yb3+ upconversion nanoparticles (UCNPs), aiming to assess their utility in enhancing image contrast within the context of swept source optical coherence tomography (OCT) and photo-thermal OCT imaging. Our research unveiled the remarkable UC emissions stemming from the transitions of Tm3+ ions, specifically the 1G4 → 3H6 transitions, yielding vibrant blue emissions at 472 nm. We delved further into the UC mechanism, meticulously scrutinizing decay times and the nanoparticles′ capacity to convert radiation into heat. Notably, these nanoparticles exhibited an impressive photo-thermal conversion efficiency of 37.5%. Furthermore, our investigations into their bio-compatibility revealed a promising outcome, with more than 90% cell survival after 24 h of incubation with HeLa cells treated with UCNPs. The nanoparticles demonstrated a notable thermal sensitivity of 4.7 × 10−3 K−1 at 300 K, signifying their potential for precise temperature monitoring at the cellular level.

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“…The two major parameters called absolute and relative sensitivity are calculated using the relations given in equations ( 8) and ( 9) respectively [37,45,46]:…”

Section: Optical Thermometrymentioning

confidence: 99%

Assessment of NIR-triggered PEG-coated NaGdF₄:Tm³⁺/Yb³⁺ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry

Shwetabh,

Banerjee,

Poddar

et al. 2024

Biomed. Mater.

Self Cite

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show abstract

Harnessing bright upconversion luminescence from PEG-coated NaGdF4:Ho3+/Yb3+ nanoparticles for contrast enhancement in dual mode OCT imaging and optical temperature sensing

Shwetabh,

Banerjee,

Poddar

et al. 2024

Ceramics International

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Effect of vacuum annealing on the upconversion luminescence of β-Ba2ScAlO5: Yb3+, Ho3+ phosphor

Wang,

Li,

Luo

et al. 2024

Optical Materials

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Optical thermometry, latent fingerprint detection and anti-counterfeiting based on upconversion emission in Ho3+/Yb3+ doped KYF4 nanoparticles

Cited by 4 publications

References 33 publications

Assessment of NIR-triggered PEG-coated NaGdF₄:Tm³⁺/Yb³⁺ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry

Assessment of NIR-triggered PEG-coated NaGdF₄:Tm³⁺/Yb³⁺ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry

Harnessing bright upconversion luminescence from PEG-coated NaGdF4:Ho3+/Yb3+ nanoparticles for contrast enhancement in dual mode OCT imaging and optical temperature sensing

Effect of vacuum annealing on the upconversion luminescence of β-Ba2ScAlO5: Yb3+, Ho3+ phosphor

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Optical thermometry, latent fingerprint detection and anti-counterfeiting based on upconversion emission in Ho3+/Yb3+ doped KYF4 nanoparticles

Cited by 4 publications

References 33 publications

Assessment of NIR-triggered PEG-coated NaGdF4:Tm3+/Yb3+ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry

Assessment of NIR-triggered PEG-coated NaGdF4:Tm3+/Yb3+ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry

Harnessing bright upconversion luminescence from PEG-coated NaGdF4:Ho3+/Yb3+ nanoparticles for contrast enhancement in dual mode OCT imaging and optical temperature sensing

Effect of vacuum annealing on the upconversion luminescence of β-Ba2ScAlO5: Yb3+, Ho3+ phosphor

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Assessment of NIR-triggered PEG-coated NaGdF₄:Tm³⁺/Yb³⁺ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry

Assessment of NIR-triggered PEG-coated NaGdF₄:Tm³⁺/Yb³⁺ bio-compatible upconversion nanoparticles for contrast enhancement in OCT imaging and optical thermometry