Janus arrangement of smart polymer on magnetite nanoparticles through solvent evaporation from emulsion droplets

Khoee, Sepideh; Soleymani, Maryam

doi:10.1016/j.apsusc.2019.07.215

Cited by 10 publications

(3 citation statements)

References 42 publications

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“…Like this mythical god, Janus particles are also referred to as anisotropic particles with two different (physical, chemical) faces (Agrawal & Agrawal, 2019). This unique asymmetric property of Janus particles brings about a paradigm shift in particles considering their ability to be independently tailored, and over time Janus‐glass beads with only opposite polarity evolved into a vast variety of Janus nanoparticles (JNPs) with two sides of combined morphologies (S. Li, Liu, et al, 2022; Steinhaus et al, 2019; Tao et al, 2017), composition (Eichler‐Volf et al, 2021; Garbuzenko et al, 2014), and different functionalities (Khoee & Karimi, 2018; Khoee & Soleymani, 2019; Q. Yang et al, 2018; M. Zhang, Jiang, et al, 2021). Therefore, providing excellent opportunities which are not approachable in symmetric nanoparticles, including simultaneously using the distinct properties of both sides.…”

Section: Introductionmentioning

confidence: 99%

Magnetite‐based Janus nanoparticles, their synthesis and biomedical applications

Madadi

Khoee

2023

WIREs Nanomed Nanobiotechnol

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The advent of Janus nanoparticles has been a great breakthrough in the emerging field of nanomaterials. Janus nanoparticles refer to a single structure with two distinct chemical functions on either side. Owing to their asymmetric structures, they can be utilized in a variety of applications where monomorphic particles are insufficient. In the last decade, a wide variety of materials have been employed to fabricate Janus nanoparticles, and due to the great advantages of magnetite (Iron‐oxide) NPs, they have been considered as one of the best candidates. With the main benefit of magnetic controlling, magnetite Janus nanoparticles fulfill great promises, especially in biomedical areas such as bioimaging, cancer therapies, theranostics, and biosensing. The intrinsic characteristics of magnetite Janus nanoparticles (MJNPs) even hold great potential in magnetite Janus forms of micro‐/nanomotors. Despite the great interest and potential in magnetic Janus NPs, the need for a comprehensive review on MJNPs with a concentration on magnetite NPs has been overlooked. Herein, we present recent advancements in the magnetite‐based Janus nanoparticles in the flourishing field of biomedicine. First, the synthesis and fabrication methods of Janus nanoparticles are discussed. Then we will delve into their intriguing biomedical applications, with a separate section for magnetite Janus micro‐/nanomotors in biomedicine. And finally, the challenges and future outlook are provided.This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Diagnostic Tools > Diagnostic Nanodevices Diagnostic Tools > In Vitro Nanoparticle‐Based Sensing

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Section: Introductionmentioning

confidence: 99%

Magnetite‐based Janus nanoparticles, their synthesis and biomedical applications

Madadi

Khoee

2023

WIREs Nanomed Nanobiotechnol

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“…A series of typical absorption peaks for the coatings papered with different ratios of NIPAM and NtBA were observed by ATR-FTIR (Figure A and Table S3). Especially, the peaks appearing at 1436, 1550, 1645, and 3288 cm –1 were the C–H stretching peak, N–H symmetric peak (amide II), CO peak (amide I), and N–H stretching peak (amide II), respectively. , Also, a wide adsorption peak appeared at 2850–3045 cm –1 due to the -CH 3 asymmetric stretching of the thermoresponsive copolymer. , Besides, a broad band was observed from 2500 to 3600 cm –1 due to the O–H stretching in the polydopamine surface (DOP surface) …”

Section: Resultsmentioning

confidence: 95%

“…41,42 Also, a wide adsorption peak appeared at 2850−3045 cm −1 due to the -CH 3 asymmetric stretching of the thermoresponsive copolymer. 43,44 Besides, a broad band was observed from 2500 to 3600 cm −1 due to the O−H stretching in the polydopamine surface (DOP surface). 43 For the DOP-surface and modified surfaces grafted by thermoresponsive polymers, N 1s signals could be clearly detected (Figure 3B).…”

Section: Chemical Composition Of the Coatingsmentioning

confidence: 99%

Poly(N-isopropylacrylamide-co-N-tert-butylacrylamide)-graph-polydopamine as a Thermoresponsive Surface with Adjustable Transformation Temperature for Efficient Microalgal Cell Adhesion and Detachment

Huang

Zeng

et al. 2022

ACS Appl. Polym. Mater.

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Microalgal biofilm is one of the most promising candidates for renewable feedstock accumulation and carbon neutralization. To synergistically enhance cell adhesion during the microalgal biofilm formation stage and detachment during the harvesting stage, a surface possessing controllable properties is expected. However, the enhancement of the adhesion capacity of a conventional N-isopropylacrylamide (NIPAM) coating to microalgal cells only happens when the temperature reaches its lower critical solution temperature (LCST) of 33 °C, but at the optimum growth temperature of microalgae (25 °C) its adhesion capacity is dramatically weakened. In this study, a nondependent and environment-friendly thermoresponsive coating with a flexible LCST (22.3–25.0 °C) was prepared by cross-linking poly(NIPAM-co-N-tert-butylacrylamide) onto polydopamine to accelerate the adhesion of microalgal cells onto the coating at the optimum growth temperature of microalgae (25 °C). The coatings exhibited outstanding temperature-switchable performance due to competition between hydrophobic groups and hydrophilic groups in polymer molecules. Based on the temperature-switchable characteristic, the adhesion density of Chlorella sorokiniana MB-1 (C. sorokiniana) on the coating was increased by 49.4% compared to the conventional coating at 25 °C. Meanwhile, at 15 °C, the detachment efficiency of these cells on the coating reached 96.5%. The energy barrier between the C. sorokiniana and the coating was reduced by 54.8% compared to that of these cells on conventional coating, resulting in excellent cell adhesion and release. This report not only designs smart polymers for adjusting the adhesion of microalgal cells but also provides a sustainable strategy for microalgal biofilm cultivation.

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Natural Polymeric Materials as a Vehicle for Antibiotics

Farrag¹

2020

Antibiotic Materials in Healthcare

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Janus arrangement of smart polymer on magnetite nanoparticles through solvent evaporation from emulsion droplets

Cited by 10 publications

References 42 publications

Magnetite‐based Janus nanoparticles, their synthesis and biomedical applications

Magnetite‐based Janus nanoparticles, their synthesis and biomedical applications

Poly(N-isopropylacrylamide-co-N-tert-butylacrylamide)-graph-polydopamine as a Thermoresponsive Surface with Adjustable Transformation Temperature for Efficient Microalgal Cell Adhesion and Detachment

Natural Polymeric Materials as a Vehicle for Antibiotics

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