APTES (3-aminopropyltriethoxy silane) functionalized MnFe2O4 nanoparticles: a potential material for magnetic fluid hyperthermia

Ghutepatil, P. R.; Salunkhe, A.B.; Khot, Vishwajeet M.; Pawar, S.H.

doi:10.1007/s11696-019-00768-z

Cited by 18 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The APTES molecules embodied on PIN/MTs formed slight conglobation (appearing as a cloud-like darker region) due to the covalent grafting of APTES. 52,53 Also, the TEM micrograph is in good agreement with the SEM micrographs (Fig. 2b and c).…”

Section: Structural and Morphological Studiessupporting

confidence: 80%

Multiwalled carbon nanotube nanofiller-polyindole polymer matrix-based efficient biosensor for the rapid detection of swine flu

et al. 2022

View full text Add to dashboard Cite

show abstract

Section: Structural and Morphological Studiessupporting

confidence: 80%

Multiwalled carbon nanotube nanofiller-polyindole polymer matrix-based efficient biosensor for the rapid detection of swine flu

et al. 2022

View full text Add to dashboard Cite

show abstract

“…At 1428 cm −1 , the deformational stretching vibration of the -N(CH 3 ) 2 also belongs to the pDMAEMA [ 35 , 43 ]. Silanization, in this case, is the process by which the APTES binds covalently to the magnetite core of the patchy nanoparticles [ 45 ]. However, there exists a possibility for electrostatic interactions between the terminal amine group of APTES and the silver coating.…”

Section: Resultsmentioning

confidence: 99%

Patchy Core/Shell, Magnetite/Silver Nanoparticles via Green and Facile Synthesis: Routes to Assure Biocompatibility

et al. 2020

View full text Add to dashboard Cite

Nanomedicine is entering a high maturity stage and is ready to reach full translation into the clinical practice. This is because of the ample spectrum of applications enabled by a large arsenal of nanostructured materials. In particular, bimetallic patchy core/shell nanoparticles offer tunable surfaces that allow multifunctional responses. Despite their attractiveness, major challenges regarding the environmental impact and biocompatibility of the obtained materials are yet to be solved. Here, we developed a green synthesis scheme to prepare highly biocompatible patchy core/shell magnetite/silver nanoparticles for biological and biomedical applications. The magnetite core was synthesized by the co-precipitation of ferric chloride and ferrous chloride in the presence of NaOH. This was followed by the patchy silver shell’s growth by a green synthesis approach based on natural honey as a reducing agent. A purification process allowed selecting the target patchy nanoparticles and removing excess toxic reagents from the synthesis very efficiently. The obtained patchy magnetite/silver nanoparticles were characterized by UV-Vis spectrophotometry, dynamic light scattering (DLS), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope equipped with energy-dispersive spectroscopy (SEM + EDS), and transmission electron microscopy (TEM). The morphology, patchiness level, and size of the nanoparticles were determined via SEM and TEM. In addition, the spectrophotometric characterization confirmed the presence of the patchy silver coating on the surface of the magnetite core. The nanoparticles show high biocompatibility, as evidenced by low cytotoxicity, hemolytic effect, and platelet aggregation tendency. Our study also provides details for the conjugation of multiples chemistries on the surface of the patchy bimetallic nanoparticles, which might be useful for emerging applications in nanomedicine, where high biocompatibility is of the utmost importance.

show abstract

“…during the functionalization process. Such preservation can be attributed to the inherent rigidity of K-MnO2 and the ability of APTES to interact solely with the exterior surface of the material (Tobilko et al 2019) (Ghutepatil et al 2019). Moreover, the diffraction data of K-MnO2-NH2 material display a slight change in intensity within the diffraction pattern.…”

Section: Spectroscopic Characterizationmentioning

confidence: 99%

Enhancing hexavalent chromium removal using amino-functionalized manganese oxide (birnessite) for improved adsorption efficiency

Slek,

Amarray,

Salmi

et al. 2024

Preprint

View full text Add to dashboard Cite

This study investigates the use of functionalized manganese oxide (K-MnO2-NH2) for removing Cr(VI) ions, a notably hazardous heavy metal contaminant,, from wastewater. The synthesis of K-MnO2-NH2 occurred in two steps followed by comprehensive characterization using various techniques, confirming its formation as pure-phase. The material demonstrated a high chromium removal efficiency (up to 90% at pH 2) attributed primarily to the introduction of amine groups through functionalization with 3-aminopropyltriethoxysilane (APTES). These amine groups create active sites displaying a strong affinity towards Cr(VI) ions. Kinetic studies suggest a chemical reaction governs the adsorption process, while thermodynamic data indicate it to be exothermic. Freundlich isotherm best describes the adsorption behaviour compared to Langmuir and Temkin models. K-MnO2-NH2 effectively removed Cr(VI) from real wastewater, achieving a removal efficiency of around 41% and causing a visible discoloration. Remarkably, the material exhibits excellent reusability, maintaining over 80% removal efficiency after five cycles without any regeneration procedures. This innovative approach provides a sustainable and efficient method for removing Cr(VI) from wastewater, showcasing the considerable potential of K-MnO2-NH2 in environmental remediation and water purification efforts.

show abstract

APTES (3-aminopropyltriethoxy silane) functionalized MnFe2O4 nanoparticles: a potential material for magnetic fluid hyperthermia

Cited by 18 publications

References 34 publications

Multiwalled carbon nanotube nanofiller-polyindole polymer matrix-based efficient biosensor for the rapid detection of swine flu

Multiwalled carbon nanotube nanofiller-polyindole polymer matrix-based efficient biosensor for the rapid detection of swine flu

Patchy Core/Shell, Magnetite/Silver Nanoparticles via Green and Facile Synthesis: Routes to Assure Biocompatibility

Enhancing hexavalent chromium removal using amino-functionalized manganese oxide (birnessite) for improved adsorption efficiency

Contact Info

Product

Resources

About