Magnetic Nanoparticles for Drug Delivery Applications

2008 ◽  
Vol 8 (7) ◽  
pp. 3247-3271 ◽  
Author(s):  
Mini Namdeo ◽  
Sutanjay Saxena ◽  
Rasika Tankhiwale ◽  
M. Bajpai ◽  
Y. M. Mohan ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Biomedical Applications ◽  
Chemical Properties ◽  
Brain Targeting ◽  
Resonance Imaging ◽  
Contrast Imaging ◽  
Physico Chemical ◽  
Magnetic Resonance Imaging Contrast ◽  
The Individual

In recent past magnetic nanoparticles have been explored for a number of biomedical applications due to their superparamagnetic moment with high magnetic saturation value. For these biomedical applications, magnetic nanoparticles require being monodispersed so that the individual nanoparticle has almost identical physico-chemical properties for biodistribution, bioelimination and contrast imaging potential. Further, the surface functionalization/modification of magnetic nanoparticles ultimately facilitate the protein or DNA separation, detection and magnetic resonance imaging contrast, drug delivery and hyperthermia applications. The essential goal of this review is to evaluate the recent advances of magnetic nanoparticles for tumor, brain targeting and hyperthermia applications.

scholarly journals MRI Relaxivity Changes of the Magnetic Nanoparticles Induced by Different Amino Acid Coatings

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 394 ◽  
Author(s):  
Iryna Antal ◽  
Oliver Strbak ◽  
Iryna Khmara ◽  
Martina Koneracka ◽  
Martina Kubovcikova ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Chemical Properties ◽  
Hydrodynamic Diameter ◽  
Contrast Imaging ◽  
Dispersed Particles ◽  
Physico Chemical ◽  
The One ◽  
Molecular Contrast ◽  
The Impact ◽  
Positively Charged

In this study, we analysed the physico-chemical properties of positively charged magnetic fluids consisting of magnetic nanoparticles (MNPs) functionalised by different amino acids (AAs): glycine (Gly), lysine (Lys) and tryptophan (Trp), and the influence of AA–MNP complexes on the MRI relaxivity. We found that the AA coating affects the size of dispersed particles and isoelectric point, as well as the zeta potential of AA–MNPs differently, depending on the AA selected. Moreover, we showed that a change in hydrodynamic diameter results in a change to the relaxivity of AA–MNP complexes. On the one hand, we observed a decrease in the relaxivity values, r1 and r2, with an increase in hydrodynamic diameter (the relaxivity of r1 and r2 were comparable with commercially available contrast agents); on the other hand, we observed an increase in r2* value with an increase in hydrodynamic size. These findings provide an interesting preliminary look at the impact of AA coating on the relaxivity properties of AA–MNP complexes, with a specific application in molecular contrast imaging originating from magnetic nanoparticles and magnetic resonance techniques.

Recent Advances in Synthesis and Biomedical Applications of Magnetic Nanoparticles

2018 ◽  
pp. 1424-1447
Author(s):  
Irshad Ahmad Wani
Keyword(s):  
Magnetic Resonance Imaging ◽  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Magnetic Resonance ◽  
Biomedical Applications ◽  
Resonance Imaging ◽  
Recent Advances ◽  
Biomedical Field ◽  
Magnetic Resonance Imaging Mri

Magnetic nanoparticles due to their unique magnetic phenomenon, are gaining immense interest due to the utilization of these properties for a wide variety of applications in various arena especially in biomedical field. This book chapter, therefore, summarizes the synthesis of various types of magnetic nanoparticles using different approaches depending of their ability to generate either single core of multcore magnetic nanoparticles. The various biomedical applications of magnetic nanoparticles like Magnetic Resonance Imaging (MRI), drug delivery etc. along with possible limitations and challenges for their extended applications in medicine are also discussed.

scholarly journals Magnetogels: Prospects and Main Challenges in Biomedical Applications

Pharmaceutics ◽  
2018 ◽  
Vol 10 (3) ◽  
pp. 145 ◽  
Author(s):  
Sérgio Veloso ◽  
Paula Ferreira ◽  
J. Martins ◽  
Paulo Coutinho ◽  
Elisabete Castanheira
Keyword(s):  
Magnetic Field ◽  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Biomedical Applications ◽  
Magnetic Field Gradient ◽  
Resonance Imaging ◽  
Conventional Chemotherapy ◽  
Future Goals ◽  
Promising Application ◽  
New Generation

Drug delivery nanosystems have been thriving in recent years as a promising application in therapeutics, seeking to solve the lack of specificity of conventional chemotherapy targeting and add further features such as enhanced magnetic resonance imaging, biosensing and hyperthermia. The combination of magnetic nanoparticles and hydrogels introduces a new generation of nanosystems, the magnetogels, which combine the advantages of both nanomaterials, apart from showing interesting properties unobtainable when both systems are separated. The presence of magnetic nanoparticles allows the control and targeting of the nanosystem to a specific location by an externally applied magnetic field gradient. Moreover, the application of an alternating magnetic field (AMF) not only allows therapy through hyperthermia, but also enhances drug delivery and chemotherapeutic desired effects, which combined with the hydrogel specificity, confer a high therapeutic efficiency. Therefore, the present review summarizes the magnetogels properties and critically discusses their current and recent biomedical applications, apart from an outlook on future goals and perspectives.

Recent Advances in Synthesis and Biomedical Applications of Magnetic Nanoparticles

2017 ◽  
pp. 219-249
Author(s):  
Irshad Ahmad Wani
Keyword(s):  
Magnetic Resonance Imaging ◽  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Magnetic Resonance ◽  
Biomedical Applications ◽  
Resonance Imaging ◽  
Recent Advances ◽  
Biomedical Field ◽  
Magnetic Resonance Imaging Mri

Magnetic nanoparticles due to their unique magnetic phenomenon, are gaining immense interest due to the utilization of these properties for a wide variety of applications in various arena especially in biomedical field. This book chapter, therefore, summarizes the synthesis of various types of magnetic nanoparticles using different approaches depending of their ability to generate either single core of multcore magnetic nanoparticles. The various biomedical applications of magnetic nanoparticles like Magnetic Resonance Imaging (MRI), drug delivery etc. along with possible limitations and challenges for their extended applications in medicine are also discussed.

Promising approaches in using magnetic nanoparticles in oncology

2011 ◽  
Vol 392 (11) ◽  
Author(s):  
Georgy Mikhaylov ◽  
Olga Vasiljeva
Keyword(s):  
Magnetic Resonance Imaging ◽  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Drug Targeting ◽  
Biomedical Applications ◽  
Drug Delivery Systems ◽  
Magnetic Field Gradient ◽  
Chemotherapeutic Agents ◽  
Magnetic Drug Targeting ◽  
Resonance Imaging

Abstract The development of new and effective drug delivery systems for cancer treatment represents one of the significant challenges facing biomedical technology in the last decade. Among the different methods of drug delivery, magnetic drug targeting, by enabling specific delivery of chemotherapeutic agents through the use of magnetic nanoparticles and magnetic field gradient, could be a promising approach. Recently, magnetic nanoparticles have attracted additional attention because of their potential as contrast agents for magnetic resonance imaging and heat mediators for cancer therapy. This review summarizes these approaches in the use of magnetic nanoparticles in biomedical applications and novel methods for their optimization.

scholarly journals How to Improve Physico-Chemical Properties of Silk Fibroin Materials for Biomedical Applications?—Blending and Cross-Linking of Silk Fibroin—A Review

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1510
Author(s):  
Sylwia Grabska-Zielińska ◽  
Alina Sionkowska
Keyword(s):  
Silk Fibroin ◽  
Biomedical Applications ◽  
Magnetic Particles ◽  
Chemical Properties ◽  
Ternary Mixtures ◽  
Cross Linking ◽  
Advantages And Disadvantages ◽  
Physico Chemical ◽  
Binary And Ternary Mixtures ◽  
To Receive

This review supplies a report on fresh advances in the field of silk fibroin (SF) biopolymer and its blends with biopolymers as new biomaterials. The review also includes a subsection about silk fibroin mixtures with synthetic polymers. Silk fibroin is commonly used to receive biomaterials. However, the materials based on pure polymer present low mechanical parameters, and high enzymatic degradation rate. These properties can be problematic for tissue engineering applications. An increased interest in two- and three-component mixtures and chemically cross-linked materials has been observed due to their improved physico-chemical properties. These materials can be attractive and desirable for both academic, and, industrial attention because they expose improvements in properties required in the biomedical field. The structure, forms, methods of preparation, and some physico-chemical properties of silk fibroin are discussed in this review. Detailed examples are also given from scientific reports and practical experiments. The most common biopolymers: collagen (Coll), chitosan (CTS), alginate (AL), and hyaluronic acid (HA) are discussed as components of silk fibroin-based mixtures. Examples of binary and ternary mixtures, composites with the addition of magnetic particles, hydroxyapatite or titanium dioxide are also included and given. Additionally, the advantages and disadvantages of chemical, physical, and enzymatic cross-linking were demonstrated.

scholarly journals New advances on Au–magnetic organic hybrid core–shells in MRI, CT imaging, and drug delivery

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6517-6525
Author(s):  
Fatemeh Mohajer ◽  
Ghodsi Mohammadi Ziarani ◽  
Alireza Badiei
Keyword(s):  
Magnetic Resonance Imaging ◽  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Targeted Drug Delivery ◽  
Magnetic Storage ◽  
Resonance Imaging ◽  
Organic Hybrid ◽  
Storage Media ◽  
Targeted Drug ◽  
Magnetic Storage Media

Magnetic nanoparticles have been studied for scientific and technological applications such as magnetic storage media, contrast agents for magnetic resonance imaging, biolabelling, separation of biomolecules, and magnetic-targeted drug delivery.

scholarly journals Implication of Magnetic Nanoparticles in Cancer Detection, Screening and Treatment

2019 ◽  
Vol 5 (4) ◽  
pp. 55 ◽  
Author(s):  
Hosu ◽  
Tertis ◽  
Cristea
Keyword(s):  
Magnetic Resonance Imaging ◽  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Magnetic Resonance ◽  
Cancer Detection ◽  
Imaging Technique ◽  
Antineoplastic Drugs ◽  
Resonance Imaging ◽  
Sensing Systems

During the last few decades, magnetic nanoparticles have been evaluated as promising materials in the field of cancer detection, screening, and treatment. Early diagnosis and screening of cancer may be achieved using magnetic nanoparticles either within the magnetic resonance imaging technique and/or sensing systems. These sensors are designed to selectively detect specific biomarkers, compounds that can be related to the onset or evolution of cancer, during and after the treatment of this widespread disease. Some of the particular properties of magnetic nanoparticles are extensively exploited in cancer therapy as drug delivery agents to selectively target the envisaged location by tailored in vivo manipulation using an external magnetic field. Furthermore, individualized treatment with antineoplastic drugs may be combined with magnetic resonance imaging to achieve an efficient therapy. This review summarizes the studies about the implications of magnetic nanoparticles in cancer diagnosis, treatment and drug delivery as well as prospects for future development and challenges of magnetic nanoparticles in the field of oncology.

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