A5029064476- Carbon and Quantum Dots Applications
- Advanced biosensing and bioanalysis techniques
- Luminescence and Fluorescent Materials
- Advanced Nanomaterials in Catalysis
- Nanoplatforms for cancer theranostics
- Nanoparticle-Based Drug Delivery
- Electrochemical sensors and biosensors
- Solar-Powered Water Purification Methods
- Iron oxide chemistry and applications
- Orthopaedic implants and arthroplasty
- Advanced Photocatalysis Techniques
- Membrane Separation Technologies
- Bone Tissue Engineering Materials
- Nanocluster Synthesis and Applications
- Graphene and Nanomaterials Applications
- Catalytic Cross-Coupling Reactions
- Catalytic C–H Functionalization Methods
- biodegradable polymer synthesis and properties
- Nanomaterials for catalytic reactions
- Molecular Sensors and Ion Detection
- Antenna Design and Analysis
- Lanthanide and Transition Metal Complexes
- Magnetic Properties and Synthesis of Ferrites
- Solar Thermal and Photovoltaic Systems
- Quantum Dots Synthesis And Properties
National Institute of Technology Rourkela
2015-2024
National Institute of Technology
2011
Indian Institute of Technology Kharagpur
2006-2008
Highly photoluminescent carbon dots with a PL quantum yield of 26% have been prepared in one step by hydrothermal treatment orange juice. Due to high photostability and low toxicity these are demonstrated as excellent probes cellular imaging.
Development of reliable methods for the detection potential biomarkers is utmost importance an early diagnosis critical diseases and disorders. In this study, a novel lanthanide-functionalized carbon dot-based fluorescent probe Zn-CD@Eu reported ratiometric dipicolinic acid (DPA) uric (UA). The nanoprobe was obtained from simple room-temperature reaction zinc-doped dots (Zn-CD) EDTA–Eu lanthanide complex. Under optimal conditions, good linear response DPA in two concentration ranges 0−55...
A new approach towards the design of folic acid conjugated magnetic nanoparticles for enhancing their site specific intracellular uptake against a folate receptor overexpressing cancer cells is reported. Magnetite were prepared by coprecipitation from an Fe3+ and Fe2+ solution followed surface modification with 2-carboxyethyl phosphonic to form carboxyl group terminated nanoparticles. Then fluorescein isothiocyanate (FITC) carboxylic functionalized magnetite using...
A nitrogen and sulphur co-doped carbon dot (NSCD) based highly selective photoluminescent probe for mercury detection has been designed. The NSCDs with a PL quantum yield of 69% are easily prepared from single polymeric molecular precursor. turn on-off fluorescence change upon addition is attributed to the nonradiative electron transfer excited state d-orbital metal ion. soft-soft acid-base interaction between part NSCD Hg(2+) makes more specific towards in contrast other ions. limit ions...
A multifunctional folic acid decorated superparamagnetic mesoporous CoFe2O4 based nanocarrier with the particle size of 35–40 nm was synthesized by a simple method. The particles show excellent aqueous dispersion stability in physiological pH without any deterioration hydrodynamic and zetapotential. cytotoxicity internalization efficiency these nanocarriers have been evaluated on folate receptor overexpressed HeLa cells. Fluorescent molecule RITC antitumor agents such as methotrexate...
A novel fluorescent boronate nanoprobe has been synthesized by judiciously doping boron, nitrogen, and sulphur in carbon quantum dots (BNSCQD). Specifically, the synergistic presence of nitrogen along with boronic acid provides excellent luminescence properties offers recognition sites for specific sensing glucosamine. Fluorescence intensity enhances glucosamine because agglomeration luminescent centers, thus restricts nonradiative emission channels. The detection limit this turn on...
A robust reusable fluoride sensor comprised of a receptor in charge the chemical recognition and fluorophore responsible for signal has been designed. Highly fluorescent carbon quantum dot (CD) magnetically separable nickel ethylenediaminetetraacetic acid (EDTA) complex bound-silica coated magnetite nanoparticle (Fe3O4@SiO2–EDTA–Ni) have used as ion receptor, respectively. The assay is based on exchange reaction between CD F–, which persuades binding to magnetic receptor. This method highly...
Judicious combination of fluorescence and magnetic properties along with ample drug loading capacity control release property remains a key challenge in the design nanotheranostic agents. This paper reports synthesis highly hydrophilic optically traceable mesoporous carbon nanospheres which can sustain payloads anticancer doxorubicin T2 contrast agent such as cobalt ferrite nanoparticles. The luminescent hybrid system has been prepared on silica template using resorcinol-formaldehyde...
Use of nanomaterials blessed with both therapeutic and diagnostic properties is a proficient strategy in the treatment cancer its early stage. In this context, our paper reports synthesis uniform size N-rich mesoporous carbon nanospheres 65-70 nm from pyrrole aniline precursors using Triton-X as structure-directing agent. Transmission electron microscopy reveals that these carbons spheres contain void spaces which ultrasmall nitrogen-doped quantum dots (NCQD) are captured within matrix....
The synthesis of a novel and specific nanoplatform for anticancer drug delivery, fluorescence imaging contrast agent in magnetic resonance has been described.
Highly water dispersible, superparamagnetic carbon quantum dot (CQD) deposited Fe3O4@mTiO2 pom-pom balls have been prepared by a simple hydrothermal method. The effective deposition of dots expands the light absorption mTiO2 from UV to visible region. results photocurrent measurement reveal that an optimum C-dot at 20 wt % significantly increases density. High surface area and extended conjugation enhance adsorption organic pollutants. active species generated in photocatalytic system were...
The improper use of antibiotics results in the emergence drug-resistant microbes which is a serious concern to public health. Here, an NIR-stimulated fluorescent antibacterial gel has been formulated by encapsulating papaya leaf-derived carbon dots (PCQDs) thermosensitive PVA-melamine hydrogel. This can release anticancer drug 5-Fu spatiotemporal and dosage controlled manner under exposure 980 nm NIR laser. PCQDs precisely generate photothermal effect reactive oxygen species (ROS) induce...
This paper presents a facile synthesis of luminescent carbon dot from plant source (Brassica oleracea) and subsequent chemical modification dots with ionic liquid. The liquid-modified (ILCD) shows intense blue luminescence, which was remarkably quenched in the presence dichromate ions. decrease intensity is mainly indexed to inner filter effect. Under optimized conditions, broad linear range 1–750 μM observed for detection Cr(VI) lower limit 0.5 μM. Further, ILCD-incorporated mesoporous...
Calcium ion plays a vital role in skeletal growth, muscle action and neural signalling. Thus level of calcium body is crucial parameter the diagnosis weakness...
Nanosized magnetite (Fe 3 O 4 ) particles showing superparamagnetism at room temperature have been prepared by controlled coprecipitation of Fe 2+ and 3+ in presence highly hydrophilic poly(vinylalcohol phosphate)(PVAP). The impact polymer concentration on particle size, size distribution, colloidal stability, magnetic property has extensively studied. aqueous suspension magnetite, using 1% PVAP solution is stable for four weeks pH 5–8. X-ray diffractograms show the formation nanocrystalline...