TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Szymczak, Maja
AU  - Rodríguez, Emma Martín
AU  - Marin, Riccardo
AU  - Henklewska, Marta
AU  - Poźniak, Błażej
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11929
AB  - The increasing popularity of luminescent nanothermometry in recent years can be attributed to its application potential in biomedicine. In response to this need, we describe a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes based on particles of MgTiO3:Cr3+,Nd3+@SiO2. The introduction of Cr3+ and Nd3+ dopants enabled the luminescence of Ti3+ ions to be observed, and the difference in the thermal quenching rates of Cr3+ (4T2→4A2), Ti3+ (2T2→2E) and Nd3+ (4F3/2 → 4I11/2) ions enabled the ratiometric thermometers. The highest sensitivity reaching SR = 1.00%K−1 was obtained for MgTiO3:0.1 % Cr3+, 0.1 % Nd3+ at 203 K. The shortening of the lifetime of the 4T2 level of Cr3+ ions associated with its thermal depopulation allows to develop a lifetime-based thermometer with a relative sensitivity reaching 0.85–1.18%K−1 in the physiological temperature range. The deposition of a SiO2 shell on a MgTiO3:Cr3+,Nd3+ did not introduce significant changes in the shape of the emission spectrum and slightly elongates the lifetime by reducing the probability of surface-related nonradiative processes. More importantly, the thermometric performance of this luminescence thermometer was preserved. The low cytotoxicity of the obtained materials underlines their potential in bioapplications of the described luminescent thermometers.
T2  - Materials Chemistry and Physics
T1  - Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications
VL  - 312
SP  - 128623
DO  - 10.1016/j.matchemphys.2023.128623
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Szymczak, Maja and Rodríguez, Emma Martín and Marin, Riccardo and Henklewska, Marta and Poźniak, Błażej and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2024",
abstract = "The increasing popularity of luminescent nanothermometry in recent years can be attributed to its application potential in biomedicine. In response to this need, we describe a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes based on particles of MgTiO3:Cr3+,Nd3+@SiO2. The introduction of Cr3+ and Nd3+ dopants enabled the luminescence of Ti3+ ions to be observed, and the difference in the thermal quenching rates of Cr3+ (4T2→4A2), Ti3+ (2T2→2E) and Nd3+ (4F3/2 → 4I11/2) ions enabled the ratiometric thermometers. The highest sensitivity reaching SR = 1.00%K−1 was obtained for MgTiO3:0.1 % Cr3+, 0.1 % Nd3+ at 203 K. The shortening of the lifetime of the 4T2 level of Cr3+ ions associated with its thermal depopulation allows to develop a lifetime-based thermometer with a relative sensitivity reaching 0.85–1.18%K−1 in the physiological temperature range. The deposition of a SiO2 shell on a MgTiO3:Cr3+,Nd3+ did not introduce significant changes in the shape of the emission spectrum and slightly elongates the lifetime by reducing the probability of surface-related nonradiative processes. More importantly, the thermometric performance of this luminescence thermometer was preserved. The low cytotoxicity of the obtained materials underlines their potential in bioapplications of the described luminescent thermometers.",
journal = "Materials Chemistry and Physics",
title = "Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications",
volume = "312",
pages = "128623",
doi = "10.1016/j.matchemphys.2023.128623"
}

Piotrowski, W. M., Szymczak, M., Rodríguez, E. M., Marin, R., Henklewska, M., Poźniak, B., Dramićanin, M.,& Marciniak, L.. (2024). Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications. in Materials Chemistry and Physics, 312, 128623.
https://doi.org/10.1016/j.matchemphys.2023.128623

Piotrowski WM, Szymczak M, Rodríguez EM, Marin R, Henklewska M, Poźniak B, Dramićanin M, Marciniak L. Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications. in Materials Chemistry and Physics. 2024;312:128623.
doi:10.1016/j.matchemphys.2023.128623 .

Piotrowski, Wojciech M., Szymczak, Maja, Rodríguez, Emma Martín, Marin, Riccardo, Henklewska, Marta, Poźniak, Błażej, Dramićanin, Miroslav, Marciniak, Lukasz, "Step by step optimization of luminescence thermometry in MgTiO3:Cr3+, Nd3+@SiO2 nanoparticles towards bioapplications" in Materials Chemistry and Physics, 312 (2024):128623,
https://doi.org/10.1016/j.matchemphys.2023.128623 . .

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Marin, Riccardo
AU  - Szymczak, Maja
AU  - Martín Rodríguez, Emma
AU  - Ortgies, Dirk H.
AU  - Rodríguez-Sevilla, Paloma
AU  - Dramićanin, Miroslav
AU  - Jaque, Daniel
AU  - Marciniak, Lukasz
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10546
AB  - Lifetime-based luminescence thermometry has been shown to enable accurate deep-tissue monitoring of temperature changes – even at the in vivo level – in a minimally invasive way. However, major limiting factors to the performance of this approach are short lifetimes and poor brightness. These are characteristics, respectively, of semiconductor nanocrystals and lanthanide-doped nanoparticles, of which most luminescent nanothermometers are made. To address these limitations, the composition of luminescent nanothermometers co-doped with transition metal (Mn5+) and Er3+ ions are designed and optimized. The salient features of these nanothermometers are strong, near-infrared emission and long, temperature-dependent photoluminescence lifetime. The potential of these luminescent nanophosphors for thermal sensing is then showcased by monitoring a thermal gradient using a one-of-a-kind piece of equipment designed for lifetime-based luminescence thermometry measurements. The combination of the newly developed nanothermometers and the custom-made instrument allows for obtaining 2D thermal maps both in the absence and presence of tissue phantoms mimicking the optical properties of the skin. The results presented in this study thus provide credible foundations for the deployment of lifetime-based thermometry for accurate deep-tissue thermal mapping at the preclinical level.
T2  - Advanced Optical Materials
T1  - Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom
VL  - 11
IS  - 3
SP  - 2202366
DO  - 10.1002/adom.202202366
ER  - 

@article{
author = "Piotrowski, Wojciech M. and Marin, Riccardo and Szymczak, Maja and Martín Rodríguez, Emma and Ortgies, Dirk H. and Rodríguez-Sevilla, Paloma and Dramićanin, Miroslav and Jaque, Daniel and Marciniak, Lukasz",
year = "2023",
abstract = "Lifetime-based luminescence thermometry has been shown to enable accurate deep-tissue monitoring of temperature changes – even at the in vivo level – in a minimally invasive way. However, major limiting factors to the performance of this approach are short lifetimes and poor brightness. These are characteristics, respectively, of semiconductor nanocrystals and lanthanide-doped nanoparticles, of which most luminescent nanothermometers are made. To address these limitations, the composition of luminescent nanothermometers co-doped with transition metal (Mn5+) and Er3+ ions are designed and optimized. The salient features of these nanothermometers are strong, near-infrared emission and long, temperature-dependent photoluminescence lifetime. The potential of these luminescent nanophosphors for thermal sensing is then showcased by monitoring a thermal gradient using a one-of-a-kind piece of equipment designed for lifetime-based luminescence thermometry measurements. The combination of the newly developed nanothermometers and the custom-made instrument allows for obtaining 2D thermal maps both in the absence and presence of tissue phantoms mimicking the optical properties of the skin. The results presented in this study thus provide credible foundations for the deployment of lifetime-based thermometry for accurate deep-tissue thermal mapping at the preclinical level.",
journal = "Advanced Optical Materials",
title = "Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom",
volume = "11",
number = "3",
pages = "2202366",
doi = "10.1002/adom.202202366"
}

Piotrowski, W. M., Marin, R., Szymczak, M., Martín Rodríguez, E., Ortgies, D. H., Rodríguez-Sevilla, P., Dramićanin, M., Jaque, D.,& Marciniak, L.. (2023). Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom. in Advanced Optical Materials, 11(3), 2202366.
https://doi.org/10.1002/adom.202202366

Piotrowski WM, Marin R, Szymczak M, Martín Rodríguez E, Ortgies DH, Rodríguez-Sevilla P, Dramićanin M, Jaque D, Marciniak L. Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom. in Advanced Optical Materials. 2023;11(3):2202366.
doi:10.1002/adom.202202366 .

Piotrowski, Wojciech M., Marin, Riccardo, Szymczak, Maja, Martín Rodríguez, Emma, Ortgies, Dirk H., Rodríguez-Sevilla, Paloma, Dramićanin, Miroslav, Jaque, Daniel, Marciniak, Lukasz, "Mn5+ Lifetime-Based Thermal Imaging in the Optical Transparency Windows Through Skin-Mimicking Tissue Phantom" in Advanced Optical Materials, 11, no. 3 (2023):2202366,
https://doi.org/10.1002/adom.202202366 . .