Superparamagnetic iron oxide nanoparticles for full-color photonic materials with tunable properties

Wang, Wei; Li, Qianli; Zheng, Ang; Li, Xiaolei; Pan, Zeyu; Jiang, Jinchun; Zhang, Linquan; Hong, Rui; Zhuang, Lin

doi:10.1016/j.rinp.2019.102366

Cited by 15 publications

(11 citation statements)

References 55 publications

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“…Wang et al [ 100 ] constructed full-color tunable photonic materials using superparamagnetic citrate-capped magnetite nanoparticles with a spherical shape and an almost uniform particle diameter. The average diameter of the magnetite nanoparticles was ~135 nm, and the saturation magnetization was ~70 A·m 2 /kg.…”

Section: Application Of Magnetic Ferrofluids In Optics and Nanophotonicsmentioning

confidence: 99%

“… Reversible optical responses of a 100 nm Fe 3 O 4 colloid under increasing or decreasing external magnetic field (H): ( a ) digital photos of the Fe 3 O 4 colloid without H (left) and with H (right); ( b ) blue shift in the reflection when H is enhanced; and ( c ) red shift in the reflection when H is weakened (adopted from [ 100 ] with permission from Elsevier, 2019). …”

Section: Figurementioning

confidence: 99%

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Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

et al. 2022

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Magnetite nanoparticles with different surface coverages are of great interest for many applications due to their intrinsic magnetic properties, nanometer size, and definite surface morphology. Magnetite nanoparticles are widely used for different medical-biological applications while their usage in optics is not as widespread. In recent years, nanomagnetite suspensions, so-called magnetic ferrofluids, are applied in optics due to their magneto-optical properties. This review gives an overview of nanomagnetite synthesis and its properties. In addition, the preparation and application of magnetic nanofluids in optics, nanophotonics, and magnetic imaging are described.

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Section: Application Of Magnetic Ferrofluids In Optics and Nanophotonicsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

et al. 2022

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“…Nanoparticles of inorganic materials have been the focus of recent research attention due to their magnetic properties, chemical stability, and structural dimensions that render them suitable for medical and biotechnological applications [1]. These nanomaterials have been shown to be useful in microfluidics [2], photonics [3], Li-ion batteries, catalysis [1], chemical sensors [4], magnetic separation [5], and biomedical applications [6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and cytotoxic evaluation of iron oxide nanoparticles functionalized with galactomannan

Mendes¹,

Rodrigues²,

Gonçalves³

et al. 2021

Preprint

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Iron nanoparticles (FeNP) present excellent magnetic properties and chemical stability, and for this reason, they are often configured into materials for a variety of potential uses in medical, biotechnological, and other applications. In this work, iron oxide nanoparticles functionalized with galactomannan (FeNP/Gal) from Caesalpinia pulcherrima were synthesized and submitted to characterization and evaluation of the cytotoxic activity. The functionalized nanoparticles were synthesized by co-precipitation and subjected to a process of surface modification with galactomannan and epichlorohydrin. These nanomaterials were characterized using infrared spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential thermogravimetric analysis (DTA), and scanning electron microscopy (SEM). 1D and 2D nuclear magnetic resonance (NMR) spectroscopy were also used in the structural analysis of the galactomannan. In addition, in vitro study was carried out to evaluate the cytotoxic activity of the FeNP/Gal nanoparticles on human cells of the HEK-293 strain (ATCC® CRL-1573). The FeNP/Gal nanoparticles had an average diameter of 13 ± 2 nm as opposed to 11 ± 2 nm for unreacted FeNP. The infrared spectrum of the FeNP/Gal nanoparticles presents characteristic absorbance bands of their chemical constituents, confirming that the iron oxide nanoparticles were functionalized with galactomannan. The cytotoxicity assay for the FeNP/Gal nanoparticles did not show significant cytotoxicity against HEK 293-Human embryonic kidney cell lines below 800 µg/mL However, this study points out the possibility of using hemicellulose and other plant-based polysaccharides to produce nanostructured materials for tissue engineering and other biomedical applications.

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“…[ 1–7 ] Size impacts magnetic properties, where particles <130 nm are single‐domain ferromagnets and <30 nm are superparamagnetic (induced by an external field). [ 7–15 ] Different shapes are appropriate for different applications, for example, large surface areas for catalysts and long chains for antennas. [ 2,3,16–20 ] Crystal forms have different uses, such as magnetite (Fe 3 O 4 ) for ferrofluids and maghemite (γ‐Fe 2 O 3 ) for data storage.…”

Section: Introductionmentioning

confidence: 99%

“…[ 2,3,21 ] After synthesis, IONPs are usually coated by a lipid to prevent aggregation and oxidation and can be functionalized. [ 9,10,12,22,23 ] Another approach is to encapsulate the nanoparticle in silica (SiO 2 ) because it is bio‐inert, insulating, and can control spacing between particles. [ 24–27 ] Increased control over particle properties requires more extreme conditions and processing steps.…”

Section: Introductionmentioning

confidence: 99%

Genetic Tuning of Iron Oxide Nanoparticle Size, Shape, and Surface Properties in Magnetospirillum magneticum

Furubayashi

Wallace

González

et al. 2020

Adv Funct Materials

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Different applications require iron oxide nanoparticles (IONPs) of varying size, shape, crystallinity, and surfaces that can be controlled through the synthesis reaction conditions. Under ambient conditions, Magnetospirillum magneticum AMB‐1 builds uniform Fe3O4 IONPs with shapes and crystal forms difficult to achieve with chemical synthesis. Genetic engineering can be used to change their properties, but there are few tools to fine‐tune expression over a wide range. To this end, ribosome binding sites, minimal constitutive promoters, and inducible systems (IPTG, aTc, and OC6) with large dynamic range are designed. These are used to control M. magneticum genes that affect IONP properties, including size (mamC), morphology (mms6), chain length (mamK), and surface coating (mamC fusions). These systems increase the fraction of IONPs that are less than 30 nm, produce rounded particles, and lead to the production of intracellular chains with 24 or more IONPs. In addition, the R5 peptide from diatoms is found to silica coat the surface of metal oxide nanoparticles (Fe, Ti, Ta, Hf) and can be genetically directed to the IONP surface. This work demonstrates the genetic control of IONP properties, but also highlights the robustness of the system, which complicates genetic engineering to produce radically different particles and structures.

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Superparamagnetic iron oxide nanoparticles for full-color photonic materials with tunable properties

Cited by 15 publications

References 55 publications

Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

Magnetite Nanoparticles: Synthesis and Applications in Optics and Nanophotonics

Synthesis, characterization, and cytotoxic evaluation of iron oxide nanoparticles functionalized with galactomannan

Genetic Tuning of Iron Oxide Nanoparticle Size, Shape, and Surface Properties in Magnetospirillum magneticum

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