Surface Modification of Superparamagnetic Magnetite Nanoparticles and Its Application for Detection of Anti-CEA Using Electrochemiluminescent Immunosensor

2015 ◽  
Vol 05 (01) ◽  
Author(s):  
Guixin Huang Biyang Deng
Keyword(s):  
Surface Modification ◽  
Magnetite Nanoparticles

Enhanced selectivity and capacity of clinoptilolite for Cd2+ removal from aqueous solutions by incorporation of magnetite nanoparticles and surface modification with cysteine

2016 ◽  
Vol 73 (9) ◽  
pp. 2284-2293 ◽  
Author(s):  
Masumeh Sharifi ◽  
Majid Baghdadi
Keyword(s):  
Surface Modification ◽  
Magnetite Nanoparticles ◽  
Weight Ratio ◽  
Correlation Coefficients ◽  
Effective Parameters ◽  
Equilibrium Data ◽  
Infrared Spectrometer ◽  
Modified Clinoptilolite ◽  
Enhanced Selectivity ◽  
Selectivity And Capacity

In this study, magnetic zeolite (MZ) nanocomposite modified with cysteine was developed in order to enhance selectivity and capacity of clinoptilolite for cadmium ion. The prepared MZ nanocomposite is containing clinoptilolite and magnetite nanoparticles with weight ratio of 3:1. The synthesized nanocomposite was characterized by transmission electron microscopy, X-ray diffraction and vibrating sample magnetometer. Surface modification was confirmed by Fourier transform infrared spectrometer. Experiments were carried out to find the optimum conditions for modification of clinoptilolite and to investigate the effective parameters (pH, adsorbent dosage, contact time, and temperature) on the adsorption of Cd2+ ion by modified clinoptilolite. The results showed enhanced selectivity of modified MZ in the presence of other naturally occurring cations (Na+, K+, Ca2+ and Mg2+) and ammonium. Kinetic and equilibrium data were well fitted by a pseudo second-order and Langmuir model, respectively, with high correlation coefficients. The maximum adsorption capacities of the modified and non-modified clinoptilolite were found to be 20.0 mg/g and 5.2 mg/g, respectively. Thermodynamic parameters revealed that the adsorption process is spontaneous and endothermic under studied conditions.

Surface modification of magnetite nanoparticles using lactobionic acid and their interaction with hepatocytes

Biomaterials ◽  
2007 ◽  
Vol 28 (4) ◽  
pp. 710-716 ◽  
Author(s):  
K.M. Kamruzzaman Selim ◽  
Yong-Soo Ha ◽  
Sun-Jung Kim ◽  
Yongmin Chang ◽  
Tae-Jeong Kim ◽  
...  
Keyword(s):  
Surface Modification ◽  
Magnetite Nanoparticles ◽  
Lactobionic Acid

scholarly journals Fluorescent Magnetic Bioprobes by Surface Modification of Magnetite Nanoparticles

Materials ◽  
2013 ◽  
Vol 6 (8) ◽  
pp. 3213-3225 ◽  
Author(s):  
Paula Pinheiro ◽  
Ana Daniel-da-Silva ◽  
Daniela Tavares ◽  
M. Calatayud ◽  
Gerardo Goya ◽  
...  
Keyword(s):  
Surface Modification ◽  
Magnetite Nanoparticles

scholarly journals Recent Advances in Magnetite Nanoparticle Functionalization for Nanomedicine

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1791 ◽  
Author(s):  
Roxana Cristina Popescu ◽  
Ecaterina Andronescu ◽  
Bogdan Stefan Vasile
Keyword(s):  
Surface Modification ◽  
Clinical Practice ◽  
Magnetite Nanoparticles ◽  
Fe3o4 Nanoparticles ◽  
Scientific Literature ◽  
Medical Applications ◽  
Magnetite Nanoparticle ◽  
Recent Advances ◽  
Magnetite Fe3o4

Functionalization of nanomaterials can enhance and modulate their properties and behaviour, enabling characteristics suitable for medical applications. Magnetite (Fe3O4) nanoparticles are one of the most popular types of nanomaterials used in this field, and many technologies being already translated in clinical practice. This article makes a summary of the surface modification and functionalization approaches presented lately in the scientific literature for improving or modulating magnetite nanoparticles for their applications in nanomedicine.

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