A5045565692- Luminescence Properties of Advanced Materials
- Radiation Detection and Scintillator Technologies
- Solid State Laser Technologies
- Lanthanide and Transition Metal Complexes
- Nanoplatforms for cancer theranostics
- Luminescence and Fluorescent Materials
- Magnetic properties of thin films
- Gas Sensing Nanomaterials and Sensors
- Magnetic and transport properties of perovskites and related materials
- Inorganic Fluorides and Related Compounds
- Perovskite Materials and Applications
- Solidification and crystal growth phenomena
- Multiferroics and related materials
- Characterization and Applications of Magnetic Nanoparticles
- Metallic Glasses and Amorphous Alloys
- Inorganic Chemistry and Materials
- Nanopore and Nanochannel Transport Studies
- Microfluidic and Bio-sensing Technologies
- Laser Applications in Dentistry and Medicine
- Gold and Silver Nanoparticles Synthesis and Applications
- Magnetic Properties and Applications
- Advanced Chemical Sensor Technologies
- Radioactive element chemistry and processing
- Covalent Organic Framework Applications
- Magnetic Properties of Alloys
Bhabha Atomic Research Centre
2021-2025
Magnetic-field-dependent magnetization of highly crystalline Fe 3 O 4 magnetic nanoparticles are carried out to understand surface canting structures.
Development of hybrid magnetic nanoparticles as decorporating agents for uranyl ions and similar rare earth alkaline ions.
Nearly monodispersed NaGdF4/Ho–Yb upconversion nanoparticles (UCNPs) are synthesized by thermolysis of respective rare earth oleates. UCNPs made biocompatible mesoporous silica (m-SiO2) coating. These particles exhibit red and green bands in the visible range upon excitation at 980 nm laser. Interestingly, because presence Ho3+ ions, these can be excited via UV–vis light addition to near infrared light. A systematic study is carried out demonstrate use as drug (DOX) carriers. Toxicity...
We report a generalized route for synthesizing pure SnO 2 and Cu (1 3 at%) doped at room temperature with crystallite size in nanometer range of 1.0–3.0 nm using CuCl , nitric acid Sn metal.
Superparamagnetic particles (SUPs) have been used in many applications the area of hyperthermia-based cancer treatment, as a magnetic resonance imaging contrast agent, carrier for drug, removal toxic ions, etc. When SUPs are dispersed liquid, they can experience Brownian motion and Néel's spin relaxations. In presence direct current field, do not show hysteresis loop. Because this, unable to produce heat. However, alternating field (AMF) few kHz small fields, generate For treatment cancer,...
Monodispersed core@shell γ-Fe2O3@MnxOy nanoparticles have been prepared through thermolysis of iron and manganese oleate. Further, these are coated with biocompatible substances such as silica polyethylene glycol. These particles highly for different cell lines normal cancer lines. The used hyperthermia agents, successful treatment in cells is carried out. As compared to γ-Fe2O3@SiO2, γ-Fe2O3@MnxOy@SiO2 shows the enhanced killing hyperthermia. In order make them potential candidates...
Rare earth-doped up-conversion materials have attracted considerable attention because of their various applications in solid-state lasers, color displays, bioimaging, and so forth. The emission most does not enough intensity. However, this intensity can be increased by doping sensitizers. Ho3+-doped compounds show green which applications. Here, we reported how the sensitizers Yb3+ Li+. In work, chosen Y2O3 as host, Ho3+ activator, sensitizer studied properties under 980 nm laser. metal...
Aqueous, dispersible, luminescent YPO4:Eu3+-K+ and hybrid magnetic-luminescent Fe3O4@YPO4:Eu3+-K+ nanoparticles are prepared at an optimum temperature with a simple synthesis route. The shape of is found to be nanorods. Photoluminescence spectrum sample upon excitation 395 nm shows the characteristic peaks Eu3+ such as magnetic–dipole transition (5D0 → 7F1) 592 nm, electric–dipole 7F2) 615 7F4) 695 nm. Luminescence intensity increases K+ doping. Interestingly, their luminescence intensities...
An effect of variation slit widths excitation and emission monochromators on intensity, peak position asymmetric ratio Eu3+ has been observed in YPO4:Eu3+. Stark splitting is observed. ion occupies D2d site symmetry crystal lattice. However, to be lesser value ∼≤1.5. The possible explanation for low explained.
A series of Ce3+- and Tb3+-doped NaGdF4 core core@shell monodispersed nanoparticles (NPs), with different doping concentrations Ce3+ a fixed concentration Tb3+ in (Ce (x = 1–20 at. %)–Tb (y 5 %)) (C-CT-x) NaGdF4:20Ce@NaGdF4:5Tb (CS-CT-20), NaGdF4:5Tb@NaGdF4:20Ce (CS-TC-20), NaGdF4:5Tb@NaGdF4:50Ce (CS-TC-50) NPs have been prepared using the thermolysis method. shows an absorption peak at 250–260 nm. Gd3+ peaks 278 310 nm, 350 378 nm (main). The emission is broad range 320–400 In Ce–Tb system,...