Bioinspired magnetic nanomaterials for drug delivery

2021 ◽  
Author(s):  
◽  
Russell John Wilson
Keyword(s):  
Drug Delivery ◽  
Magnetic Nanomaterials

Chemo-drug controlled-release strategies of nanocarrier in the development of cancer therapeutics.

2020 ◽  
Vol 27 ◽  
Author(s):  
Yunyi Liu ◽  
Hailong Ou ◽  
Xiaming Pei ◽  
Bin Jiang ◽  
Yihan Ma ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cancer Therapy ◽  
Drug Delivery Systems ◽  
High Surface ◽  
Cancer Therapeutics ◽  
Delivery Systems ◽  
Magnetic Nanomaterials ◽  
Future Application ◽  
Stimulus Responsive

: Nanoparticles have been widely used in cancer therapy because of its nanoscale, high surface ratio, multifuntions and so on. With specific construction of nanoparticles, such as choosing magnetic nanomaterials or citric acid coated nanoparticle, scientists can kill tumor cells effectively and accurately，importantly， reducing the side effect of conventional chemotherapy. Currently, they have been continually applied in cancer therapeutics research. Scientists not only designed nanoparticles loading with therapeutic drugs, but also equipped with targeted molecules. These works make nanoparticles become a multifuntional nanocarrier. In the construction of multifunctional nanocarriers, nanoparticles play the important work of drug delivery. Normally, enabling drugs delivery to tumor tissues is a difficult task. During the period of internal circulation, it is hard to keep the nanocarriers stability. As well as not attach to normal cells or serum. With the application of stimulus-responsive nanomaterials, scientists develop many nanocarriers with controllable drug release. These controllable drug delivery systems can quickly respond to microenvironmental changes (PH, enzyme, etc.) or external stimuli (photo, heat, magnetic or electric fields). Thus, it is to overcome the side effects by controllable drug delivery systems in vivo. In this article, we summarize the various kinds of stimulus-responsive nanocarriers for cancer therapy and discuss its possibilities and challenges in future application.

Iron Oxide Magnetic Nanotubes and Their Drug Loading and Release Capabilities

2009 ◽  
Vol 1 (1) ◽  
Author(s):  
Linfeng Chen ◽  
Jining Xie ◽  
Kiran R. Aatre ◽  
Vijay K. Varadan
Keyword(s):  
Drug Delivery ◽  
Iron Oxide ◽  
Controlled Release ◽  
Biomedical Applications ◽  
Drug Loading ◽  
Magnetic Nanomaterials ◽  
Synthesis Methods ◽  
Magnetic Nanotubes ◽  
Potential Applications ◽  
Hydrothermal Methods

Iron oxide magnetic nanomaterials are among the most widely used nanomaterials in nanomedicine. Due to their magnetic and structural properties, iron oxide magnetic nanotubes are extremely attractive for biomedical applications. This paper presents the synthesis of iron oxide magnetic nanotubes, and their potential applications in drug delivery. Three types of iron oxide magnetic nanotubes, i.e., hematite, maghemite, and magnetite, were synthesized using template and hydrothermal methods, and the effects of synthesis methods on the morphological and crystalline properties of the synthesized magnetic nanotubes were analyzed. The magnetization properties of the three types of synthesized magnetic nanotubes and their responses to external magnetic fields were studied. To explore their applications in drug delivery, the drug loading and release capabilities of the synthesized magnetic nanotubes were investigated. The final part of this paper discusses several important issues related to the applications of iron oxide magnetic nanotubes for drug delivery, especially the controlled release of drugs.

scholarly journals Magnetic Nanomaterials for Magnetically-Aided Drug Delivery and Hyperthermia

2019 ◽  
Vol 9 (14) ◽  
pp. 2927
Author(s):  
Madumali Kalubowilage ◽  
Katharine Janik ◽  
Stefan H. Bossmann
Keyword(s):  
Drug Delivery ◽  
Magnetic Nanoparticles ◽  
Clinical Translation ◽  
Magnetic Nanomaterials ◽  
Cancer Therapies ◽  
Advantages And Disadvantages ◽  
Experimental Approaches

Magnetic nanoparticles have continuously gained importance for the purpose of magnetically-aided drug-delivery, magnetofection, and hyperthermia. We have summarized significant experimental approaches, as well as their advantages and disadvantages with respect to future clinical translation. This field is alive and well and promises meaningful contributions to the development of novel cancer therapies.

Techniques For The Preparation of Tissue Samples Containing Injectable Polymer Microcapsules

1985 ◽  
Vol 43 ◽  
pp. 710-711
Author(s):  
G.E. Visscher ◽  
R. L. Robison ◽  
G. J. Argentieri
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Gastrocnemius Muscle ◽  
Degradation Process ◽  
Delivery Systems ◽  
Tissue Reaction ◽  
Electron Microscopic ◽  
Tissue Samples ◽  
Injectable Polymer ◽  
Microscopic Techniques

The use of various bioerodable polymers as drug delivery systems has gained considerable interest in recent years. Among some of the shapes used as delivery systems are films, rods and microcapsules. The work presented here will deal with the techniques we have utilized for the analysis of the tissue reaction to and actual biodegradation of injectable microcapsules. This work has utilized light microscopic (LM), transmission (TEM) and scanning (SEM) electron microscopic techniques. The design of our studies has utilized methodology that would; 1. best characterize the actual degradation process without artifacts introduced by fixation procedures and 2. allow for reproducible results.In our studies, the gastrocnemius muscle of the rat was chosen as the injection site. Prior to the injection of microcapsules the skin above the sites was shaved and tattooed for later recognition and recovery. 1.0 cc syringes were loaded with the desired quantity of microcapsules and the vehicle (0.5% hydroxypropylmethycellulose) drawn up. The syringes were agitated to suspend the microcapsules in the injection vehicle.

Nanotheranostic agents for neurodegenerative diseases

2020 ◽  
Vol 4 (6) ◽  
pp. 645-675
Author(s):  
Parasuraman Padmanabhan ◽  
Mathangi Palanivel ◽  
Ajay Kumar ◽  
Domokos Máthé ◽  
George K. Radda ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Neurodegenerative Diseases ◽  
Cell Types ◽  
Specific Cell ◽  
Ageing Population ◽  
Target Tissue ◽  
Therapeutic Approaches ◽  
Surface Receptors ◽  
Theranostic Agents ◽  
Preclinical Animal Models

Neurodegenerative diseases (NDDs), including Alzheimer's disease (AD) and Parkinson's disease (PD), affect the ageing population worldwide and while severely impairing the quality of life of millions, they also cause a massive economic burden to countries with progressively ageing populations. Parallel with the search for biomarkers for early detection and prediction, the pursuit for therapeutic approaches has become growingly intensive in recent years. Various prospective therapeutic approaches have been explored with an emphasis on early prevention and protection, including, but not limited to, gene therapy, stem cell therapy, immunotherapy and radiotherapy. Many pharmacological interventions have proved to be promising novel avenues, but successful applications are often hampered by the poor delivery of the therapeutics across the blood-brain-barrier (BBB). To overcome this challenge, nanoparticle (NP)-mediated drug delivery has been considered as a promising option, as NP-based drug delivery systems can be functionalized to target specific cell surface receptors and to achieve controlled and long-term release of therapeutics to the target tissue. The usefulness of NPs for loading and delivering of drugs has been extensively studied in the context of NDDs, and their biological efficacy has been demonstrated in numerous preclinical animal models. Efforts have also been made towards the development of NPs which can be used for targeting the BBB and various cell types in the brain. The main focus of this review is to briefly discuss the advantages of functionalized NPs as promising theranostic agents for the diagnosis and therapy of NDDs. We also summarize the results of diverse studies that specifically investigated the usage of different NPs for the treatment of NDDs, with a specific emphasis on AD and PD, and the associated pathophysiological changes. Finally, we offer perspectives on the existing challenges of using NPs as theranostic agents and possible futuristic approaches to improve them.

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