Computational Simulation of Magnetic Drug Targeting in Human Body

2011 ◽  
Author(s):  
Reza Kamali ◽  
Gholamreza Keshavarzi
Keyword(s):  
Magnetic Field ◽  
Drug Delivery ◽  
Human Body ◽  
Targeted Drug Delivery ◽  
Drug Targeting ◽  
Magnetic Particles ◽  
Computational Simulation ◽  
Magnetic Drug Targeting ◽  
Targeted Drug ◽  
Specific Part

Development of novel particle carrier methods has led to enhanced advances in targeted drug delivery. This paper has aimed the investigation of targeting drugs via attached magnetic particles into human body. This goal was approached by inducing a magnetic field near a specific part of the human body to target the drug or as it is called magnetic drug targeting (MDT). Blood flow and magnetic particles are simulated under the presence of the specified properties of a magnetic field. In order to demonstrate a more realistic simulation, the flow was considered pulsatile. Finally, the results provided show valuable information on magnetic drug targeting in human body.

scholarly journals Magnetic chitosan for drug targeting and in vitro drug delivery response

2011 ◽  
Vol 1 (5) ◽  
pp. 160-165 ◽  
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Hybrid Materials ◽  
Delivery System ◽  
Targeted Drug Delivery ◽  
Drug Targeting ◽  
Laser Scanning Microscopy ◽  
Magnetic Drug Targeting ◽  
Targeted Drug

The magnetic targeted drug delivery system is one of the most attractive strategies of delivering drugs to the area of interest. Magnetic drug targeting is based on using magnetic drug carrier particles to selectively deliver drugs to a specific site inside the body by using an external magnet field to attract and retain them there. Our study was focused to the synthesis, characterization and in vitro drug delivery response of magnetic hybrid material based Fe3O4/chitosan/cephalosporins (Cefepime, Ceftriaxone, Cefuroxime, Cefoperazone, Cefpirome, Cefaclor). Magnetic materials were characterized by CLSM (Confocal Laser Scanning Microscopy) and µATR-FT-IR (Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy). All these hybrid materials have been prepared in order to develop a magnetic drug delivery system and can be utilized to facilitate the targeted drug delivery of cephalosporins. The hybrid materials are obtained under mild conditions without any organic solvents and surfactants, which are more suitable for pharmaceutical applications.

scholarly journals Targeted Drug Delivery of Magnetic Nano-Particle in the Specific Lung Region

Computation ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 10 ◽  
Author(s):  
Anusmriti Ghosh ◽  
Mohammad S. Islam ◽  
Suvash C. Saha
Keyword(s):  
Magnetic Field ◽  
Drug Delivery ◽  
Targeted Drug Delivery ◽  
Particle Deposition ◽  
Magnetic Drug Targeting ◽  
Nano Particle ◽  
Specific Position ◽  
Targeted Drug ◽  
Lung Airways

Aerosolized drug inhalation plays an important role in the treatment of respiratory diseases. All of the published in silico, in vivo, and in vitro studies have improved the knowledge of aerosol delivery in the human respiratory system. However, aerosolized magnetic nano-particle (MNP) transport and deposition (TD) for the specific position of the human lung are still unavailable in the literature. Therefore, this study is aimed to provide an understanding of the magnetic nano-particle TD in the targeted region by imposing an external magnetic field for the development of future therapeutics. Uniform aerosolized nano-particle TD in the specific position of the lung airways will be modelled by adopting turbulence k–ω low Reynolds number simulation. The Euler–Lagrange (E–L) approach and the magneto hydrodynamics (MHD) model are incorporated in the ANSYS fluent (18.0) solver to investigate the targeted nano-particle TD. The human physical activity conditions of sleeping, resting, light activity and fast breathing are considered in this study. The aerosolized drug particles are navigated to the targeted position under the influence of external magnetic force (EMF), which is applied in two different positions of the two-generation lung airways. A numerical particle tracing model is also developed to predict the magnetic drug targeting behavior in the lung. The numerical results reveal that nano-particle deposition efficiency (DE) in two different magnetic field position is different for various physical activities, which could be helpful for targeted drug delivery to a specific region of the lung after extensive clinical trials. This process will also be cost-effective and will minimize unwanted side effects due to systemic drug distribution in the lung.

Parametric Investigation of Magnetic Particle Transport for Targeted Drug Delivery Applications

2011 ◽  
Author(s):  
Daniel B. Cooper ◽  
Pavlos P. Vlachos
Keyword(s):  
Targeted Drug Delivery ◽  
Targeted Delivery ◽  
Drug Targeting ◽  
Magnetic Particles ◽  
Magnetic Particle ◽  
The Body ◽  
Target Site ◽  
Magnetic Drug Targeting ◽  
Targeted Drug ◽  
Magnetic Particle Transport

In recent years, there has been significant clinical and research interest in magnetic drug targeting (MDT). MDT allows the targeted delivery of drugs only to the affected sites, alleviating the rest of the body from the potential toxic or other side effects of the drug. The underlying concept of MDT is to attach drugs to small magnetic particles which can then be manipulated by a magnetic field designed to attract the drug carrying particles to the target site [1]. This will lead to increasing localized accumulation of the drug at the target site. MDT can have great implications on pharmaceutical treatments, ranging from oncology to cardiology and beyond [2, 3].

Intrathecal Magnetic Drug Targeting: A New Approach to Treating Diseases of the Central Nervous System

2013 ◽  
Author(s):  
Eric Lueshen ◽  
Indu Venugopal ◽  
Andreas Linninger
Keyword(s):  
Magnetic Field ◽  
Drug Delivery ◽  
Central Nervous System ◽  
Nervous System ◽  
Spinal Canal ◽  
Drug Targeting ◽  
Superparamagnetic Nanoparticles ◽  
Magnetic Drug Targeting ◽  
The Central Nervous System ◽  
Drug Doses

Intrathecal (IT) drug delivery is a standard technique which involves direct injection of drugs into the cerebrospinal fluid (CSF)-filled space within the spinal canal to treat many diseases of the central nervous system. Currently, in order to reach the therapeutic drug concentration at certain locations within the spinal canal, high drug doses are used. With no method to deliver the large drug doses locally, current IT drug delivery treatments are hindered with wide drug distributions throughout the central nervous system (CNS) which cause harmful side effects. In order to overcome the current limitations of IT drug delivery, we have developed the novel method of intrathecal magnetic drug targeting (IT-MDT). Gold-coated magnetite nanoparticles are infused into a physiologically and anatomically relevant in vitro human spine model and then targeted to a specific site using external magnetic fields, resulting in a substantial increase in therapeutic nanoparticle localization at the site of interest. Experiments aiming to determine the effect of key parameters such as magnet strength, duration of magnetic field exposure, location of magnetic field, and ferrous implants on the collection efficiency of our superparamagnetic nanoparticles in the targeting region were performed. Our experiments indicate that intrathecal magnetic drug targeting and implant-assisted IT-MDT are promising techniques for concentrating and localizing drug-functionalized nanoparticles at required target sites within the spinal canal for potential treatment of diseases affecting the central nervous system.

scholarly journals Nanoformulation Design Including MamC-Mediated Biomimetic Nanoparticles Allows the Simultaneous Application of Targeted Drug Delivery and Magnetic Hyperthermia

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1832 ◽  
Author(s):  
Ylenia Jabalera ◽  
Francesca Oltolina ◽  
Ana Peigneux ◽  
Alberto Sola-Leyva ◽  
Maria P. Carrasco-Jiménez ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Targeted Drug Delivery ◽  
Magnetic Hyperthermia ◽  
Simultaneous Application ◽  
Biomimetic Nanoparticles ◽  
Targeted Drug ◽  
Model Drug ◽  
Drug Nanocarriers

The design of novel nanomaterials that can be used as multifunctional platforms allowing the combination of therapies is gaining increased interest. Moreover, if this nanomaterial is intended for a targeted drug delivery, the use of several guidance methods to increase guidance efficiency is also crucial. Magnetic nanoparticles (MNPs) allow this combination of therapies and guidance strategies. In fact, MNPs can be used simultaneously as drug nanocarriers and magnetic hyperthermia agents and, moreover, they can be guided toward the target by an external magnetic field and by their functionalization with a specific probe. However, it is difficult to find a system based on MNPs that exhibits optimal conditions as a drug nanocarrier and as a magnetic hyperthermia agent. In this work, a novel nanoformulation is proposed to be used as a multifunctional platform that also allows dual complementary guidance. This nanoformulation is based on mixtures of inorganic magnetic nanoparticles (M) that have been shown to be optimal hyperthermia agents, and biomimetic magnetic nanoparticles (BM), that have been shown to be highly efficient drug nanocarriers. The presence of the magnetosome protein MamC at the surface of BM confers novel surface properties that allow for the efficient and stable functionalization of these nanoparticles without the need of further coating, with the release of the relevant molecule being pH-dependent, improved by magnetic hyperthermia. The BM are functionalized with Doxorubicin (DOXO) as a model drug and with an antibody that allows for dual guidance based on a magnetic field and on an antibody. The present study represents a proof of concept to optimize the nanoformulation composition in order to provide the best performance in terms of the magnetic hyperthermia agent and drug nanocarrier.

Targeted Drug Delivery: Trends and Perspectives

2021 ◽  
Vol 18 ◽  
Author(s):  
Sumel Ashique ◽  
Navjot Kaur Sandhu ◽  
Viney Chawla ◽  
Pooja A Chawla
Keyword(s):  
Drug Delivery ◽  
Drug Interaction ◽  
Drug Delivery System ◽  
Delivery System ◽  
Targeted Drug Delivery ◽  
Drug Targeting ◽  
Drug Targets ◽  
Drug Transport ◽  
Conventional Drug ◽  
Targeted Drug

Background: Due to various limitations in conventional drug delivery system, it is important to focus on the target-specific drug delivery system where we can deliver the drug without any degradation. Among various challenges faced by a formulation scientist, delivering the drug to its right site, in its right dose, is also an important aim. A focused drug transport aims to extend, localize, target and have a safe drug interaction with the diseased tissue. Objective: The aim of targeted drug delivery is to make the required amount of the drug available at its desired site of action. Drug targeting can be accomplished in a number ways that include enzyme mediation, pH-dependent release, use of special vehicles, receptor targeting among other mechanisms. Intelligently designed targeted drug delivery systems also offer the advantages of a low dose of the drug along with reduced side effects which ultimately improves patient compliance. Incidences of dose dumping and dosage form failure are negligible. A focused drug transport aims to have a safe drug interaction with the diseased tissue. Conclusion: This review focuses on the available targeting techniques for delivery to the colon, brain and other sites of interest. Overall, the article should make an excellent read for the researchers in this area. Newer drug targets may be identified and exploited for successful drug targeting.

A target-initiated DNA network caged on magnetic particles for amplified chemiluminescence resonance energy transfer imaging of microRNA and targeted drug delivery

2016 ◽  
Vol 52 (87) ◽  
pp. 12841-12844 ◽  
Author(s):  
Sai Bi ◽  
Shuzhen Yue ◽  
Weiling Song ◽  
Shusheng Zhang
Keyword(s):  
Drug Delivery ◽  
Energy Transfer ◽  
Targeted Drug Delivery ◽  
Magnetic Particles ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Targeted Drug

DNA networks are constructed on magnetic particles by an initiator, which are functionalized for CRET imaging assay and targeted drug delivery.

Future trends in magnetic source device design for magnetic targeted drug delivery system

2021 ◽  
pp. 1-17
Author(s):  
Qi Xiong ◽  
Xianqi Song ◽  
Meng Yang ◽  
Lijun Zhou ◽  
Zhe Li ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Targeted Drug Delivery ◽  
Drug Targeting ◽  
Research Direction ◽  
Drug Side Effects ◽  
Potential Development ◽  
Magnetic Capture ◽  
Targeted Drug ◽  
The Mathematical Model ◽  
The Magnetic Field

Magnetic targeted drug delivery systems can improve drug utilization and reduce drug side effects. There are still many difficulties to be overcome in clinical practice. The main problems include providing large enough magnetic capture particles to concentrate drug-loaded magnetic micro-nanoparticles (MNPs) to the lesion site. The existing research focuses on the development of targeted carriers, and the magnet device has not formed a mature research system. Based on the recent development of magnet devices in recent years, this paper proposes the research direction of potential magnet devices. From the dynamic behavior of the particles under the magnetic field, the magnetic system and the mathematical model design direction of the optimized magnet are developed. This article describes the obstacles encountered in drug targeting in the study of magnet devices and summarizes the potential development of future magnet devices.

scholarly journals Targeted drug-delivery approaches by nanoparticulate carriers in the therapy of inflammatory diseases

2009 ◽  
Vol 7 (suppl_1) ◽  
Author(s):  
Wiebke Ulbrich ◽  
Alf Lamprecht
Keyword(s):  
Drug Delivery ◽  
Targeted Drug Delivery ◽  
Drug Targeting ◽  
Inflammatory Diseases ◽  
Site Of Action ◽  
Specific Uptake ◽  
Inflammatory Bowel ◽  
Delivery Strategies ◽  
Targeted Drug ◽  
High Doses

Limitations in therapy induced by adverse effects due to unselective drug availability and therefore the use of potentially too high doses are a common problem. One prominent example for this dilemma are inflammatory diseases. Colloidal carriers allow one to improve delivery of drugs to the site of action and appear promising to overcome this general therapeutic drawback. Specific uptake of nanoparticles by immune-related cells in inflamed barriers offers selective drug targeting to the inflamed tissue. Here we focus on nanocarrier-based drug delivery strategies for the treatment of common inflammatory disorders like rheumatoid arthritis, multiple sclerosis, uveitis or inflammatory bowel disease.

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