Study on the effects of Cl and F doping in TiO2 powder synthesized by a sol-gel route for biomedical applications

Singh, V.N.; Rao, A. Sumadhura; Tiwari, Anamika; Padarthi, Yashwanth; Lal, Madan; Dubey, Uma S.; Aich, Shampa; Roy, B.

doi:10.1016/j.jpcs.2019.06.011

Cited by 18 publications

(11 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because 5% hemolysis is considered a permissible limit for nanomaterials, up to 2 mg/mL of CdS nanoparticles can be used for hemolysis activity. As a result, the generated CdS nanoparticles can be said to be biocompatible in nature at very low concentrations (Singh et al 2019).…”

Section: Human Rbc Hemolysis Assaymentioning

confidence: 99%

UV-light-driven cadmium sulphide (CdS) nanocatalysts: synthesis, characterization, therapeutic and environmental applications; kinetics and thermodynamic study of photocatalytic degradation of Eosin B and Methyl Green dyes

Jan

Wajidullah

Ullah

et al. 2022

Water Science and Technology

View full text Add to dashboard Cite

Titanium dioxide (TiO2) and Holmium doped Titanium dioxide(Ho-TiO2) nanoparticles (NPs) were synthesized through Sol Gel method. The synthesized NPs were characterized by UV-Vis spectroscopy, X-ray diffraction (XRD), Energy dispersive X-ray analysis (EDX), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Photoluminescence spectroscopy. DNA binding, antibacterial, hemolytic and antioxidant assays of the synthesized nanoparticles were also carried out for finding their therapeutic applications. Successful doping of TiO2 with Ho reduced the band gap from 3.10 to 2.88 eV. SEM and XRD analysis showed that both TiO2 and Ho-TiO2 NPs exhibit tetragonal structure and as a result of doping the morphology of the particles improved and agglomeration reduced. PL emission intensity of TiO2 also reduced with doping.The holmium doped TiO2 were used for the first time against the degradation of Safranin O dye, DNA binding study and biocompatibility assay.The degradation of Safranin O dye over both the catalysts followed first order kinetics. The calculated activation energies for the photo degradation of given dye were found to be 51.7 and 35.2 kJ/mol using TiO2 and Ho-TiO2 NPs respectively. At 180 minutes time interval 84 and 87% dye degradation was observed using pure TiO2 and Ho-TiO2 NPs respectively. High percent degradation of dye was found at low concentration (20 ppm) and at optimal dosage (0.035 g) of both the catalysts. The rate of Safranin O dye degradation was found to increase with increase in temperature and pH of the medium. DNA binding study revealed that Ho-TiO2 NPs are more capable of binding to human DNA. Antibacterial activity study showed that Ho-TiO2 NPs were more efficient against both gram-negative and gram-positive bacterial strains as compared to pure TiO2. Hemolysis assay showed that TiO2 and Ho-TiO2 nanoparticles are non-biocompatible.Ho-TiO2 nanoparticles showed higher anti-oxidant activity as compared to bare TiO2.

show abstract

Section: Human Rbc Hemolysis Assaymentioning

confidence: 99%

UV-light-driven cadmium sulphide (CdS) nanocatalysts: synthesis, characterization, therapeutic and environmental applications; kinetics and thermodynamic study of photocatalytic degradation of Eosin B and Methyl Green dyes

Jan

Wajidullah

Ullah

et al. 2022

Water Science and Technology

View full text Add to dashboard Cite

show abstract

“…At temperatures above 600 ºC, larger particles and development of the rutile phase were observed [56]. Peaks of the rutile phase observed after heating at 700 ºC were attributed to anatase to rutile phase transition [157,162,163]. The morphology of that powder prepared with 2 mL of water contained very fine anatase crystals and quasi-spherical nanoparticles.…”

Section: Forms Of Synthesis Used In the Production Of Biomaterialsmentioning

confidence: 99%

Nanostructured titanium dioxide for use in bone implants: a short review

et al. 2020

View full text Add to dashboard Cite

Titanium dioxide (TiO2) based nanostructured materials have shown great potential for use in implants thanks to their excellent physicochemical properties, such as high specific surface area, ability to elicit positive cell response, and stability in body fluids. However, there are few studies in the literature that focus on the use of nanostructured TiO2 to support cell growth and bone regeneration. The purpose of this survey is to review the state of the art of TiO2 for use in bone implants, as well as provide insight into its characteristics and synthesis methods. Studies of the biological properties of nanostructured TiO2 are described, establishing its potential for the biomedical field.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Additionally, the parameters such as electrical conductivity , light absorption and the pore size can also be tuned by choosing appropriate dopants. When different types of anionic and cationic dopants are used in TiO 2, 10‐14 the cationic dopant substitutes for Ti 4+ , while the anionic dopant substitutes for O 2− of TiO 2. 15 Anionic dopants can induce changes in the electronic energy states through establishment of new electronic bands or through overlapping of bands and these changes can bring about enhancement in the visible light absorption 12 .…”

Section: Introductionmentioning

confidence: 99%

Microwave assisted solvothermal synthesis of quasi cubic F doped TiO ₂ nanostructures and its performance as dye sensitized solar cell photoanode

Ramakrishnan

Muthukumarasamy²,

Pitchaiya

et al. 2020

Intl J of Energy Research

View full text Add to dashboard Cite

By the process of doping in semiconducting nanomaterials, properties of the materials such as electronic, optical and photochemical properties can be effectively tuned. Here fluorine doped TiO 2 nanostructures were synthesized by microwave assisted solvothermal technique. The X-ray diffraction patterns (XRD) and Raman analysis results of the sample exhibits peaks characteristic of anatase TiO 2 . From the UV-visible absorption analysis, an increase in visible light absorption with no significant change in the absorption edge was noticed. F doped TiO 2 nanostructures were found to possess quasi cubic morphology through the transmission electron microscope images and from the presence of well-defined ring pattern in selected area electron diffraction patterns the polycrystalline nature of the samples were confirmed. The presence of fluorine in the TiO 2 lattice was confirmed through the presence of Ti 3+ states using Xray photoelectron spectroscopy (XPS) analysis and electron paramagnetic resonance (EPR) analysis respectively. The prepared TiO 2 , F doped TiO 2 nanostructures were coated over fluorine doped tin oxide (FTO) substrates, further they were subjected to dye sensitization and were used as photoanodes in dye sensitized solar cells and their power conversion efficiencies were studied. K E Y W O R D Sanatase TiO 2 , dye-sensitized solar cell, microwave assisted synthesis, polyvinylidene fluoride, Ti 3+ states

show abstract

Study on the effects of Cl and F doping in TiO2 powder synthesized by a sol-gel route for biomedical applications

Cited by 18 publications

References 52 publications

UV-light-driven cadmium sulphide (CdS) nanocatalysts: synthesis, characterization, therapeutic and environmental applications; kinetics and thermodynamic study of photocatalytic degradation of Eosin B and Methyl Green dyes

UV-light-driven cadmium sulphide (CdS) nanocatalysts: synthesis, characterization, therapeutic and environmental applications; kinetics and thermodynamic study of photocatalytic degradation of Eosin B and Methyl Green dyes

Nanostructured titanium dioxide for use in bone implants: a short review

Microwave assisted solvothermal synthesis of quasi cubic F doped TiO ₂ nanostructures and its performance as dye sensitized solar cell photoanode

Contact Info

Product

Resources

About

Study on the effects of Cl and F doping in TiO2 powder synthesized by a sol-gel route for biomedical applications

Cited by 18 publications

References 52 publications

UV-light-driven cadmium sulphide (CdS) nanocatalysts: synthesis, characterization, therapeutic and environmental applications; kinetics and thermodynamic study of photocatalytic degradation of Eosin B and Methyl Green dyes

UV-light-driven cadmium sulphide (CdS) nanocatalysts: synthesis, characterization, therapeutic and environmental applications; kinetics and thermodynamic study of photocatalytic degradation of Eosin B and Methyl Green dyes

Nanostructured titanium dioxide for use in bone implants: a short review

Microwave assisted solvothermal synthesis of quasi cubic F doped TiO 2 nanostructures and its performance as dye sensitized solar cell photoanode

Contact Info

Product

Resources

About

Microwave assisted solvothermal synthesis of quasi cubic F doped TiO ₂ nanostructures and its performance as dye sensitized solar cell photoanode