One pot synthesis and characterization of Fe3O4 Nanorod-PNIPA Nanogel Composite for protein adsorption

Rajar, Kausar; Karakus, Baris; Koç, Kenan; Alveroğlu, Esra

doi:10.1016/j.msec.2016.05.095

Cited by 23 publications

(9 citation statements)

References 45 publications

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Section: Resultsmentioning

confidence: 99%

“…It is interesting to mention that nanorods NPs were no further observed in our previous published work [27]. Indeed, in last years, various synthetic routes have been developed to synthesize 1D magnetite nanorods due to specific properties, such as unique electronic transport [39,56], and according to our knowledge, no study has been reported "one-pot" synthesis of magnetite-polymer nanorod using US irradiation. For instance, Li and co-workers [57] reported that the increase in reaction time under US irradiation may cause a shape change of Se nanoparticles from spherical α-Se to t-Se nanotubes and further to t-Se nanowires.…”

Section: Magnetic Propertymentioning

confidence: 85%

“…β is the exponent ranging between 1 and 0, and when β

1 this model tends to Langmuir model, i.e., isotherms at low concentration. Instead, when β

0, isotherm tends to Freundlich model at high concentration [ 39 ].…”

Section: Methodsmentioning

confidence: 99%

“…β is the exponent ranging between 1 and 0, and when β → 1 this model tends to Langmuir model, i.e., isotherms at low concentration. Instead, when β → 0, isotherm tends to Freundlich model at high concentration [39]. The Temkin isotherm model considers adsorbent-adsorbate interactions, assuming that the heat of adsorption in the layer decreases linearly with coverage, in which can occur with a uniform binding energy distribution up to some maximum binding energy [40], as described by Equations ( 9) and (10).…”

Section: Adsorption Isothermsmentioning

confidence: 99%

See 3 more Smart Citations

Magnetic Porous Controlled Fe3O4–Chitosan Nanostructure: An Ecofriendly Adsorbent for Efficient Removal of Azo Dyes

et al. 2020

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In this work, chitosan/magnetite nanoparticles (ChM) were quickly synthesized according to our previous report based on co-precipitation reaction under ultrasound (US) irradiation. Besides ChM was in-depth structurally characterized, showing a crystalline phase corresponding to magnetite and presenting a spheric morphology, a “nanorod”-type morphology was also obtained after increasing reaction time for eight minutes. Successfully, both morphologies presented a nanoscale range with an average particle size of approximately 5–30 nm, providing a superparamagnetic behavior with saturation magnetization ranging from 44 to 57 emu·g−1. As ChM nanocomposites have shown great versatility considering their properties, we proposed a comparative study using three different amine-based nanoparticles, non-surface-modified and surface-modified, for removal of azo dyes from aqueous solutions. From nitrogen adsorption–desorption isotherm results, the surface-modified ChMs increased the specific surface area and pore size. Additionally, the adsorption of anionic azo dyes (reactive black 5 (RB5) and methyl orange (MO)) on nanocomposites surface was pH-dependent, where surface-modified samples presented a better response under pH 4 and non-modified one under pH 8. Indeed, adsorption capacity results also showed different adsorption mechanisms, molecular size effect and electrostatic attraction, for unmodified and modified ChMs, respectively. Herein, considering all results and nanocomposite-type structure, ChM nanoparticles seem to be a suitable potential alternative for conventional anionic dyes adsorbents, as well as both primary materials source, chitosan and magnetite, are costless and easily supplied.

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Section: Resultsmentioning

confidence: 99%

Section: Magnetic Propertymentioning

confidence: 85%

“…β is the exponent ranging between 1 and 0, and when β

1 this model tends to Langmuir model, i.e., isotherms at low concentration. Instead, when β

0, isotherm tends to Freundlich model at high concentration [ 39 ].…”

Section: Methodsmentioning

confidence: 99%

Section: Adsorption Isothermsmentioning

confidence: 99%

See 2 more Smart Citations

Magnetic Porous Controlled Fe3O4–Chitosan Nanostructure: An Ecofriendly Adsorbent for Efficient Removal of Azo Dyes

et al. 2020

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“…Alternatively, to perform the synthesis of the polymeric matrix and the INPs in situ, nanoparticle precursors can be loaded into the gel during polymerization. For example, Rajar et al [157] reported the in situ synthesis of Fe 3 O 4 nanorods with PNIPAM nanogels. Briefly, Fe 3 O 4 precursors were added to the hydrogel-forming monomer solution before free radical polymerization was initiated.…”

Section: Hybrid Nanogelsmentioning

confidence: 99%

Design, Synthesis and Architectures of Hybrid Nanomaterials for Therapy and Diagnosis Applications

2018

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Hybrid nanomaterials based on inorganic nanoparticles and polymers are highly interesting structures since they combine synergistically the advantageous physical-chemical properties of both inorganic and polymeric components, providing superior functionality to the final material. These unique properties motivate the intensive study of these materials from a multidisciplinary view with the aim of finding novel applications in technological and biomedical fields. Choosing a specific synthetic methodology that allows for control over the surface composition and its architecture, enables not only the examination of the structure/property relationships, but, more importantly, the design of more efficient nanodevices for therapy and diagnosis in nanomedicine. The current review categorizes hybrid nanomaterials into three types of architectures: core-brush, hybrid nanogels, and core-shell. We focus on the analysis of the synthetic approaches that lead to the formation of each type of architecture. Furthermore, most recent advances in therapy and diagnosis applications and some inherent challenges of these materials are herein reviewed.

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Hydrogen‐Bonding UCST‐Thermosensitive Nanogels by Direct Photo‐RAFT Polymerization‐Induced Self‐Assembly in Aqueous Dispersion

Tran

Piogé

Fontaine

et al. 2020

Macromol. Rapid Commun.

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Hydrogen‐bonding upper critical solution temperature (UCST) thermosensitive nanogels based on poly(N‐acryloyl glycinamide) (PNAGA) are synthesized by photo‐reversible addition‐fragmentation chain transfer mediated polymerization‐induced self‐assembly (photo‐RAFT PISA) in aqueous dispersion using N,N′‐methylenebis(acrylamide) as crosslinker and poly(oligo(ethylene glycol) methyl ether acrylate) as both stabilizer and macromolecular chain transfer agent (macro‐CTA). Highly stable, spherical nanogels with narrow polydispersity are efficiently produced up to complete monomer conversion within 1 h under UV irradiation at low temperature (3 °C). The thermosensitive behavior of PNAGA‐based nanogels, as assessed by dynamic light scattering and UV–vis spectrophotometry, exhibits reversible heating‐induced swelling and cooling‐induced shrinking corresponding to the expected UCST behavior. The hydrodynamic diameter, swelling ratio, and phase transition temperature of nanogels can be tuned by modifying the initial molar ratio of monomer‐to‐macro‐CTA and the amount of crosslinker in the photo‐RAFT PISA of NAGA.

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One pot synthesis and characterization of Fe3O4 Nanorod-PNIPA Nanogel Composite for protein adsorption

Cited by 23 publications

References 45 publications

Magnetic Porous Controlled Fe3O4–Chitosan Nanostructure: An Ecofriendly Adsorbent for Efficient Removal of Azo Dyes

Magnetic Porous Controlled Fe3O4–Chitosan Nanostructure: An Ecofriendly Adsorbent for Efficient Removal of Azo Dyes

Design, Synthesis and Architectures of Hybrid Nanomaterials for Therapy and Diagnosis Applications

Hydrogen‐Bonding UCST‐Thermosensitive Nanogels by Direct Photo‐RAFT Polymerization‐Induced Self‐Assembly in Aqueous Dispersion

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