Synthesis and Characterization of the First Generation of Polyamino-Ester Dendrimer-Grafted Magnetite Nanoparticles from 3-Aminopropyltriethoxysilane (APTES) via the Convergent Approach

Dayyani, Nahid; Ramazani, Ali; Khoee, Sepideh; Shafiee, Abbas

doi:10.1007/s12633-016-9497-6

Cited by 21 publications

(3 citation statements)

References 32 publications

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“…In step 2, by adding 3-aminopropyl triethoxy silane APTES to silica nanoparticles, the cyanol groups on the surface of the nanoparticles are linked with this compound and the surface of the nanoparticles is amined [47]. In step 3, by adding trichlorotriazine (TCT) to the nanoparticles, the amine groups created on the surface of the nanoparticles establish a covalent bond with this compound.…”

Section: Silanization Mechanism Of Iron Oxide Nanoparticlesmentioning

confidence: 99%

Detection of tetanus toxoid with iron magnetic nanobioprobe

Karkhaneh,

Sadr,

Rad

et al. 2024

Biomed. Phys. Eng. Express

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Diagnosis of diseases with low facilities, speed, accuracy and sensitivity is an important matter in treatment. Bioprobes based on iron oxide nanoparticles are a good candidate for early detection of deadly and infectious diseases such as tetanus due to their high reactivity, biocompatibility, low production cost and sample separation under a magnetic field. In this study, silane groups were coated on surface of iron oxide nanoparticles using tetraethoxysilane (TEOS) hydrolysis. Also, NH2 groups were generated on the surface of silanized nanoparticles using 3-aminopropyl triethoxy silane (APTES). Antibody was immobilized on the surface of silanized nanoparticles using TCT trichlorothriazine as activator. Silanization and stabilized antibody were investigated by using of FT-IR, EDX, VSM, SRB technique. UV/vis spectroscopy, fluorescence, agglutination test and ELISA were used for biosensor performance and specificity. The results of FT-IR spectroscopy showed that Si-O-Si and Si-O-Fe bonds and TCT chlorine and amine groups of tetanus anti-toxoid antibodies were formed on the surface of iron oxide nanoparticles. The presence of Si, N and C elements in EDX analysis confirms the silanization of iron oxide nanoparticles. VSM results showed that the amount of magnetic nanoparticles after conjugation is sufficient for biological applications. Antibody stabilization on nanoparticles increased the adsorption intensity in the uv / vis spectrometer. The fluorescence intensity of nano bioprobe increased in the presence of 10 ng / ml. Nanobio probes were observed as agglomerates in the presence of tetanus toxoid antigen. The presence of tetanus antigen caused the formation of antigen-nanobioprobe antigen complex. Identification of this complex by HRP-bound antibody confirmed the specificity of nanobioprobe. Tetanus magnetic nanobioprobe with a diagnostic limit of 10 ng / ml of tetanus antigen in a short time can be a good tool in LOC devices and microfluidic chips.

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Section: Silanization Mechanism Of Iron Oxide Nanoparticlesmentioning

confidence: 99%

Detection of tetanus toxoid with iron magnetic nanobioprobe

Karkhaneh,

Sadr,

Rad

et al. 2024

Biomed. Phys. Eng. Express

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“…The glass surface does not readily have any polar groups necessary for forming the solid complex with Pd 2+ . Liu et al [123] described a method for commencing the electroless deposition process on the glass in which SAMs [203][204][205][206] were developed on the glass surface using γ-amino-propyl-tri-methoxy-silane (APTES) [207][208][209][210]. Amio groups of SAM coordinate with Pd 2 + ions forming an N-Pd complex when modified glass is dipped in the PdCl 2 solution.…”

Section: Sam-based Electroless Depositionmentioning

confidence: 99%

A critical review of copper electroless deposition on glass substrates for microsystems packaging applications

Pawar

Dixit

2022

Surface Engineering

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This article reviews the state-of-the-art electroless copper deposition on glass substrates and the associated challenges.The well-known issue of poor adhesion of electroless copper with the glass substrate was addressed and later, improved bymodifying the surface energy using a specific chemical treatment or by creating localized surface roughening. Localized surfaceregions in the glass were created by abrasive-based ultrasonic machining and hightemperature electrochemical-discharge machiningtechniques. The effect of critical process parameters on the surface roughness and morphology was explained. Both qualitative andquantitative adhesion measurement techniques, such as cross-hatch tests and 90°/180°p eel adhesion tests, were presented. Theadhesion strength is affected by the surface roughness of the substrate and residual stress build-up in the film. As the build-up stresscan be released by the post-deposition annealing, the adhesion strength is further increased. Finally, the electroless coppertechnology in making through-glass-vias and embedded redistribution lines are presented.

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“…Para contornar essas deficiências e obter um material resistente à oxidação e que apresente grande afinidade por substratos, é possível revestir as nanopartículas com uma camada inerte de sílica e, posteriormente, utilizar reações de hidrólise de silanos para obter nanopartículas superparamagnéticas funcionalizadas 26,35,38,39,44,45 . 30,31,[51][52][53][54][55][56][57][58][59] .…”

Section: Funcionalizaçãounclassified

Estudo da extração hidrometalúrgica de matais de transição com nanopartículas superparamagnéticas funcionalizadas

Kaid¹

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Hydrometallurgical processing of strategic elements such as copper and cobalt is a subject of great relevance because of the economical and environmental issues involved. In this thesis, the interaction of superparamagnetic nanoparticles functionalized with ethylenediamine groups with transition metal ions, such as copper(II) and cobalt(II), has been investigated from the physico-chemical point of view, focusing on the adsorption kinetics and complexation equilibrium involved, aiming the understanding of magnetic nanohydrometallurgy applied to those systems. Also investigated was the influence of possible variables, such as the counter ions in solution and the adsorption selectivity observed in the comparison of different metal ions. Special emphasis was applied to the construction of adsorption isotherms using analytical methods (EDX) and zeta potentials measured in situ in aqueous solution. The proposed models in both cases, provided a critical view of the methodologies, showing the contrasts and the special role of the solvodynamic effects associated with the zeta potentials, including the formation of ion pairs at the nanoparticles slipping plane. The possible application of the systems in the development of magnetic affinity chromatography has also been demonstrated in the selective adsorption of mioglobin by the superparamagnetic nanoparticles containing copper ions. The Langmuir isotherm revealed a reversible process, in which the adsorption and desorption steps can be controlled by the pH of the reactional media.

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Synthesis and Characterization of the First Generation of Polyamino-Ester Dendrimer-Grafted Magnetite Nanoparticles from 3-Aminopropyltriethoxysilane (APTES) via the Convergent Approach

Cited by 21 publications

References 32 publications

Detection of tetanus toxoid with iron magnetic nanobioprobe

Detection of tetanus toxoid with iron magnetic nanobioprobe

A critical review of copper electroless deposition on glass substrates for microsystems packaging applications

Estudo da extração hidrometalúrgica de matais de transição com nanopartículas superparamagnéticas funcionalizadas

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