Investigation to Understand the Role of Phase Variation in Red Emitting Eu3+-Doped Calcium Magnesium Silicate Phosphor for In Vitro Bioimaging DOI

Navya Sara Kuriyan,

Ayswaria Deepti, P. S. Baby Chakrapani

et al.

ACS Applied Bio Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Eu3+-doped silicate phosphors are gaining significant attention for bioimaging and scaffold development due to their narrow red emission, high color purity, quantum yield (QY), large Stokes shift. These offer several advantages over conventional imaging techniques, such as good selectivity sensitivity, simpler operation, reduced data acquisition time, cost-effectiveness, nondestructive imaging. The luminescence properties of these can be enhanced by modifying synthesis methods, annealing conditions, hosts introducing multiple dopants. This study explores a novel approach improving the crystal structures Eu3+ doped calcium magnesium (CMS:Eu3+) in vitro potential development. synthesized diopside (CaMgSi2O6:xEu3+; x = 10, 15, 20 mol %), merwinite (Ca3MgSi2O8:15 % Eu3+), akermanite (Ca2MgSi2O7:15 Eu3+) phases CMS:Eu3+ exhibit distinct coordination environments Eu3+, leading unique excitation wavelength tunability from ultraviolet (UV) visible region, emission intensity, decay QY > 40%, purity >83%. A comparative analysis structural photoluminescence reveals impact phase modifications on optimizing dopant concentration. results indicate that CaMgSi2O6: 15 is most efficient phosphor bioimaging, with highest relative intensity time ∼2 ms, ∼ 77%, ∼86%. morphology Ca3MgSi2O8:15 %Eu3+ Ca2MgSi2O7:15 also supports cell adhesion, suggesting In brief, highlights concentrations.

Language: Английский

Exploring the Potential of Rare Earth Doped Carbon Dots: Concepts and Applications DOI Creative Commons
Juliana De Gregori da Rocha, Maria Alice Prado Cechinel, Larissa Fátima Rocha

et al.

Chemical Engineering Journal Advances, Journal Year: 2024, Volume and Issue: 17, P. 100583 - 100583

Published: Jan. 6, 2024

Carbon dots (CDs) are nanostructures containing mainly carbon atoms and abundant functional groups. With remarkable adjustable physicochemical properties, CDs have excellent hydrophilicity, photoluminescence (PL), biocompatibility, low toxicity. Although the numerous advantages make a research target for synthesizing advanced materials, some limitations pertinent must be corrected. Rare earth elements (RE) candidates doping CDs, obtaining hybrid materials called RE-CDs to optimize luminescence applicability, quantum yields. Hybrids allow combination of advantageous characteristics both RE, drastically improving their luminous magneto-optical imaging performance opening door practical technological applications. To date, no studies in literature provided in-depth analyses methods used prepare RE-CDs, characterization techniques used, challenges, critical analysis what could improved synthesis by proposing solutions. fill this gap, review initially presents detailed survey RE separately. Subsequently, addressed, as well obtainment, commonly characterizations, recent applications, from analyte detection functionality medical nanodevices. Finally, criticisms suggestions future work also discussed inspire new discoveries about potential derived RE-CDs.

Language: Английский

Citations

17
BaTiO3:Nd3+ nanoparticles: Gamma induced dosimetry properties, optical thermometry and minutia detection using YOLOv8x deep learning model DOI

I.S. Pruthviraj,

B.R. Radha Krushna,

S.C. Sharma

et al.

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114062 - 114062

Published: Feb. 1, 2025

Language: Английский

Citations

3
Fabrication of dual Z-scheme TiO2-WO3-CeO2 heterostructured nanocomposite with enhanced photocatalysis, antibacterial, and electrochemical performance DOI
Tauseef Munawar, Faisal Mukhtar, Muhammad Shahid Nadeem

et al.

Journal of Alloys and Compounds, Journal Year: 2021, Volume and Issue: 898, P. 162779 - 162779

Published: Nov. 17, 2021

Language: Английский

Citations

85
Hysteresis loop properties of rare earth doped spinel ferrites: A review DOI
M. D. Hossain, Md. Abul Hossain,

S.S. Sikder

et al.

Journal of Magnetism and Magnetic Materials, Journal Year: 2022, Volume and Issue: 564, P. 170095 - 170095

Published: Oct. 23, 2022

Language: Английский

Citations

47
Blue-light pumped NIR emission of LaOF:Pr3+ nanorods for highly sensitive nanothermometry DOI Creative Commons
Sumedha Tamboli, Govind B. Nair, Zhiguo Xia

et al.

Ceramics International, Journal Year: 2023, Volume and Issue: 49(14), P. 23579 - 23590

Published: April 25, 2023

Remote thermal sensing is a much-needed technology in today's world; therefore, developing highly sensitive optical thermometer probes has become necessity. In this study, the luminescence thermometers based on Pr3+ emissions red and near-infrared (NIR) regions were used. LaOF:Pr3+ nanorods synthesized via microwave-assisted hydrothermal route. The prepared exhibited excellent photoluminescence (PL) emission NIR under blue laser excitation. Their PL found to be influenced by temperature, which was exploited study ability of nanorods. Fluorescence intensity ratios (FIRs) evaluated for both thermally coupled levels non-thermally levels. maximum absolute relative sensitivities 5% K−1 at 573 K 0.8% 303 K, respectively. temperature resolution 0.17 achieved FIR calculated from emissions. passed repeatability test, maintained similar pattern repeated heating cooling cycles. results suggest that are promising materials nanothermometry applications.

Language: Английский

Citations

23
Preparation of rare earth-doped nano-fluorescent materials in the second near-infrared region and their application in biological imaging DOI

Hetong Zhu,

Xin Ding, Chang Wang

et al.

Journal of Materials Chemistry B, Journal Year: 2024, Volume and Issue: 12(8), P. 1947 - 1972

Published: Jan. 1, 2024

Advantages of rare earth-doped nanoparticles in second near-infrared fluorescence imaging and commonly used earth ions.

Language: Английский

Citations

11
Recent advancements in bioreceptors and materials for biosensors DOI
Ashutosh Kumar, Kuldeep Mahato

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 163 - 202

Published: Jan. 1, 2024

Language: Английский

Citations

10
ZnAl2O4:Er3+ Upconversion Nanophosphor for SPECT Imaging and Luminescence Modulation via Defect Engineering DOI
Annu Balhara, Santosh K. Gupta, K. Sudarshan

et al.

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: 7(4), P. 2354 - 2366

Published: March 14, 2024

This work reports an "all-in-one" theranostic upconversion luminescence (UCL) system having potential for both diagnostic and therapeutic applications. Despite considerable efforts in designing nanoparticles (UCNPs) multimodal imaging tumor therapy, there are few investigating dual modality SPECT/optical theranostics. Especially, research focusing on vivo biodistribution studies of intrinsically radiolabeled UCNPs after intravenous injection is utmost importance the clinical translation such formulations. Here, we utilized gamma emission from 169Er 171Er radionuclides demonstration ZnAl2O4:171/169Er3+ as a potent agent dual-modality imaging. No uptake radio nanoformulation was detected skeleton 4 h administration, which evidenced robust integrity ZnAl2O4:169/171Er3+. Combining therapeutics using β– particulates will be promising radio-theranostic application synthesized ZnAl2O4:169/171Er3+ nanoformulation. Cell toxicity ZnAl2O4:1%Er3+ were examined by MTT assay B16F10 mouse melanoma cell lines, demonstrated good biocompatibility. In addition, explored mechanism UCL modulation via defect engineering Bi3+ codoping ZnAl2O4:Er3+ nanophosphor. The color tuning successfully achieved red to green region function concentrations. Further, tried establish correlation with intrinsic oxygen cation vacancy defects concentrations help electron paramagnetic resonance (EPR) positron annihilation lifetime spectroscopy (PALS) studies. study contributes building bridge between nature UC that crucial design advanced

Language: Английский

Citations

10
The single near-infrared upconversion luminescence of a novel KYb (MoO4)2: Er3+ phosphor for the temperature sensing DOI

Daobin Zhu,

Keyu Guo,

Jiancheng Yao

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1310, P. 138304 - 138304

Published: April 10, 2024

Language: Английский

Citations

10
Negative thermal expansion in Sc2Mo3O12:Sm3+ for white LEDs and unveiling the impact of phase transition on cryogenic luminescence DOI
Annu Balhara, Santosh K. Gupta, Malini Abraham

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(31), P. 11955 - 11966

Published: Jan. 1, 2024

Sc 2 Mo 3 O 12 :Sm 3+ phosphor was explored for white LED with improved CRI and precise color coordinates indoor plant growth. The green emission of monoclinic phase at 80 K diminished on transition to the orthorhombic RT.

Language: Английский

Citations

9