نتایج جستجو برای: functionalization mnps

تعداد نتایج: 10847  

Journal: :Magnetochemistry 2022

Magnetic nanoparticles (MNPs) have great potential in the drug delivery area. Iron oxide (Fe3O4) MNPs demonstrated a promising effect due to their ferrimagnetic properties, large surface area, stability, low cost, easy synthesis, and functionalization. Some coating procedures are required improve biocompatibility, decrease toxicity for medical applications. Herein, co-precipitation synthesis of...

In this work, we investigate the loading and conjugation of Curcumin on oleic acid (OA) and citric acid (CA) functionalized iron oxide nanoparticles and its applications in improving contrast in MRI. Magnetic iron oxide nanoparticles (Fe3O4, MNPs) synthesized using the co-precipitation method and characterized by XRD, DLS, FT-IR, VSM and SEM. FT-IR results confirmed functionalization with oleic...

In this work, we investigate the loading and conjugation of Curcumin on oleic acid (OA) and citric acid (CA) functionalized iron oxide nanoparticles and its applications in improving contrast in MRI. Magnetic iron oxide nanoparticles (Fe3O4, MNPs) synthesized using the co-precipitation method and characterized by XRD, DLS, FT-IR, VSM and SEM. FT-IR results confirmed functionalization with oleic...

2013
Suman Chaudhary Carol Anne Smith Pablo del Pino Jesus M. de la Fuente Margaret Mullin Andrew Hursthouse David Stirling Catherine C. Berry

Nanotechnology plays an increasingly important role in the biomedical arena. In particular, magnetic nanoparticles (mNPs) have become important tools in molecular diagnostics, in vivo imaging and improved treatment of disease, with the ultimate aim of producing a more theranostic approach. Due to their small sizes, the nanoparticles can cross most of the biological barriers such as the blood ve...

2015
Colleen Loynachan Polina Anikeeva

Local heat delivered by magnetic nanoparticles (MNPs) selectively attached to their target proteins can be used to manipulate and break up toxic or obstructive aggregates. We applied this magnetic hyperthermia treatment to the amyloid beta (AP) peptide, which unnaturally folds and self-assembles forming amyloid fibrils and insoluble plaques characteristic of amyloidgenic diseases such as Alzhei...

2017
Qiu Yang Wenxian Liu Bingqing Wang Weina Zhang Xiaoqiao Zeng Cong Zhang Yongji Qin Xiaoming Sun Tianpin Wu Junfeng Liu Fengwei Huo Jun Lu

Composites incorporating metal nanoparticles (MNPs) within metal-organic frameworks (MOFs) have broad applications in many fields. However, the controlled spatial distribution of the MNPs within MOFs remains a challenge for addressing key issues in catalysis, for example, the efficiency of catalysts due to the limitation of molecular diffusion within MOF channels. Here we report a facile strate...

Journal: :Journal of biomedical materials research. Part A 2015
Magdalena Radović María Pilar Calatayud Gerardo Fabián Goya Manuel Ricardo Ibarra Bratislav Antić Vojislav Spasojević Nadežda Nikolić Drina Janković Marija Mirković Sanja Vranješ-Đurić

Two different types of magnetic nanoparticles (MNPs) were synthesized in order to compare their efficiency as radioactive vectors, Fe₃O₄-Naked (80 ± 5 nm) and polyethylene glycol 600 diacid functionalized Fe₃O₄(Fe₃O₄-PEG600) MNPs (46 ± 0.6 nm). They were characterized based on the external morphology, size distribution, and colloidal and magnetic properties. The obtained specific power absorpti...

Journal: :Catalysts 2023

In the search for new biotechnological advances, increasing attention is currently being paid to development of magnetic nanoplatforms loaded with enzymes, since, on one hand, they can be recovered and reused, other improve their catalytic activity increase stability, avoiding processes such as aggregation or autolysis. this review, we evaluate a series key parameters governing enzyme–nanoparti...

2013
Won Jun Yang Jong Ho Lee Seong Cheol Hong Jaewook Lee Jaebeom Lee Dong-Wook Han

Recently, many nanomedical studies have been focused on magnetic nanoparticles (MNPs) because MNPs possess attractive properties for potential uses in imaging, drug delivery, and theranostics. MNPs must have optimized size as well as functionalized surface for such applications. However, careful cytotoxicity and genotoxicity assessments to ensure the biocompatibility and biosafety of MNPs are e...

2011
Jun Wang Baoan Chen Jian Chen Xiaohui Cai Guohua Xia Ran Liu Pingsheng Chen Yu Zhang Xuemei Wang

BACKGROUND A promising approach to optimize the disposition of daunorubicin-loaded magnetic nanoparticles (DNR-MNPs) was developed to minimize serious side effects of systematic chemotherapy for cancer. METHODS The physical properties of DNR-MNPs were investigated and their effect on leukemia cells in vitro was evaluated by a standard WST-1 cell proliferation assay. Furthermore, cell apoptosi...

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