Modified chitosan coated mesoporous strontium hydroxyapatite nanorods as drug carriers

2015 ◽  
Vol 3 (29) ◽  
pp. 5991-6000 ◽  
Author(s):  
M. Filippousi ◽  
P. I. Siafaka ◽  
E. P. Amanatiadou ◽  
S. G. Nanaki ◽  
M. Nerantzaki ◽  
...  

Strontium hydroxyapatite nanorods were loaded with two different model drugs and encapsulated in a modified chitosan polymeric matrix for potential applications in the field of drug delivery.

2012 ◽  
Vol 1 (11) ◽  
pp. 384-393 ◽  
Author(s):  
Akanksha Garud ◽  
Deepti Singh ◽  
Navneet Garud

Solid lipid nanoparticles (SLN) have emerged as a next-generation drug delivery system with potential applications in pharmaceutical field, cosmetics, research, clinical medicine and other allied sciences. Recently, increasing attention has been focused on these SLN as colloidal drug carriers for incorporating hydrophilic or lipophilic drugs. Proteins and antigens intended for therapeutic purposes may be incorporated or adsorbed onto SLN, and further administered by parenteral routes or be alternative routes such as oral, nasal and pulmonary. The obstacles associated with conventional chemotherapy may be partially overcome by encapsulating them as SLN. The present review focuses on the utility of SLN in terms of their advantages, production methodology, characterization and applications. If properly investigated, SLNs may open new vistas in therapy of complex diseases.DOI: http://dx.doi.org/10.3329/icpj.v1i11.12065 International Current Pharmaceutical Journal 2012, 1(11): 384-393


NANO ◽  
2011 ◽  
Vol 06 (06) ◽  
pp. 509-539 ◽  
Author(s):  
PAWEŁ SZYMAŃSKI ◽  
MAGDALENA MARKOWICZ ◽  
ELŻBIETA MIKICIUK-OLASIK

Nanotechnology, a separate field of knowledge since 1980s, involves utilization of nanomaterials not only in electronics and catalysis, but also in biomedical research including drug delivery, bioimaging, biomedical-diagnostics and tissue engineering. Multidisciplinary of this science has led to the development of different areas of technology and might contribute to innovations that will, as a final consequence, help humanity. Dendrimers are large and complex molecules that are characterized by well-defined nanoscale architecture, monodispersity and structural versatility. These highly interesting polymers consist of three elements: core, branches and peripheral groups. There is a wide variety of potential applications of dendritic polymers. One of the most promising is utilization of polyamidoamine (PAMAM) dendrimers as drug delivery devices. Among pharmaceuticals that have been connected with different types of dendrimers are nonsteroidal anti-inflammatory drugs (NSAIDs), anticancer drugs and other. Dendrimers application as drug carriers improves pharmacokinetic properties of drug particles, decreases drugs' side effects and, by possibility of surface modification with different ligands, enables to target specific tissues and tumor cells. Dendrimers might be also utilized as devices for delivery of genetic material and contrast agents for magnetic resonance imaging (MRI).


Author(s):  
Harpreet Kaur Khanuja ◽  
Harish Dureja

Background: The term homogenize means "to force or provide coalesce." Homogenisation is a process to attain homogenous particle size. The objective of homogenisation process is to use fluid force to split the fragments or tiny particles contained in the fluids into minimal dimen-sions and form a sustainable dispersion suitable for further production. Results: The present study focus on the use of the homogenisation in drug delivery system. Homogenisation process aims to achieve the particle size in micro-and nano- range as it affects the different parameters in the formulation and biopharmaceutical profile of the drug. Particle size reduction plays a crucial role in influencing drug dissolution and absorption. The reduced particle size enhances the stability and therapeutic efficacy of the drug. Homogenisa-tion technology ensures to achieve effective, clinically efficient, and targeted drug delivery with minimal side effects Conclusion: Homogenization technology is an efficient and easy method of size reduction to increase solubility, bioavailability, and stability of drug carriers. This article gives an overview of the process attributes affecting the homogenisation process, the patenting of homogeniser types, design, the geometry of valves and nozzles, and its role in drug delivery.


2010 ◽  
Vol 7 (6) ◽  
pp. 458-464
Author(s):  
Xiao-Li WU ◽  
Can ZHANG ◽  
Qi-Neng PING

2020 ◽  
Vol 26 (15) ◽  
pp. 1637-1649 ◽  
Author(s):  
Imran Ali ◽  
Sofi D. Mukhtar ◽  
Heyam S. Ali ◽  
Marcus T. Scotti ◽  
Luciana Scotti

Background: Nanotechnology has contributed a great deal to the field of medical science. Smart drugdelivery vectors, combined with stimuli-based characteristics, are becoming increasingly important. The use of external and internal stimulating factors can have enormous benefits and increase the targeting efficiency of nanotechnology platforms. The pH values of tumor vascular tissues are acidic in nature, allowing the improved targeting of anticancer drug payloads using drug-delivery vectors. Nanopolymers are smart drug-delivery vectors that have recently been developed and recommended for use by scientists because of their potential targeting capabilities, non-toxicity and biocompatibility, and make them ideal nanocarriers for personalized drug delivery. Method: The present review article provides an overview of current advances in the use of nanoparticles (NPs) as anticancer drug-delivery vectors. Results: This article reviews the molecular basis for the use of NPs in medicine, including personalized medicine, personalized therapy, emerging vistas in anticancer therapy, nanopolymer targeting, passive and active targeting transports, pH-responsive drug carriers, biological barriers, computer-aided drug design, future challenges and perspectives, biodegradability and safety. Conclusions: This article will benefit academia, researchers, clinicians, and government authorities by providing a basis for further research advancements.


2020 ◽  
Vol 26 (33) ◽  
pp. 4174-4184
Author(s):  
Marina P. Abuçafy ◽  
Bruna L. da Silva ◽  
João A. Oshiro-Junior ◽  
Eloisa B. Manaia ◽  
Bruna G. Chiari-Andréo ◽  
...  

Nanoparticles as drug delivery systems and diagnostic agents have gained much attention in recent years, especially for cancer treatment. Nanocarriers improve the therapeutic efficiency and bioavailability of antitumor drugs, besides providing preferential accumulation at the target site. Among different types of nanocarriers for drug delivery assays, metal-organic frameworks (MOFs) have attracted increasing interest in the academic community. MOFs are an emerging class of coordination polymers constructed of metal nodes or clusters and organic linkers that show the capacity to combine a porous structure with high drug loading through distinct kinds of interactions, overcoming the limitations of traditional drug carriers explored up to date. Despite the rational design and synthesis of MOFs, structural aspects and some applications of these materials like gas adsorption have already been comprehensively described in recent years; it is time to demonstrate their potential applications in biomedicine. In this context, MOFs can be used as drug delivery systems and theranostic platforms due to their ability to release drugs and accommodate imaging agents. This review describes the intrinsic characteristics of nanocarriers used in cancer therapy and highlights the latest advances in MOFs as anticancer drug delivery systems and diagnostic agents.


2020 ◽  
Vol 26 (42) ◽  
pp. 5488-5502 ◽  
Author(s):  
Yub Raj Neupane ◽  
Asiya Mahtab ◽  
Lubna Siddiqui ◽  
Archu Singh ◽  
Namrata Gautam ◽  
...  

Autoimmune diseases are collectively addressed as chronic conditions initiated by the loss of one’s immunological tolerance, where the body treats its own cells as foreigners or self-antigens. These hay-wired antibodies or immunologically capable cells lead to a variety of disorders like rheumatoid arthritis, psoriatic arthritis, systemic lupus erythematosus, multiple sclerosis and recently included neurodegenerative diseases like Alzheimer’s, Parkinsonism and testicular cancer triggered T-cells induced autoimmune response in testes and brain. Conventional treatments for autoimmune diseases possess several downsides due to unfavourable pharmacokinetic behaviour of drug, reflected by low bioavailability, rapid clearance, offsite toxicity, restricted targeting ability and poor therapeutic outcomes. Novel nanovesicular drug delivery systems including liposomes, niosomes, proniosomes, ethosomes, transferosomes, pharmacosomes, ufasomes and biologically originated exosomes have proved to possess alluring prospects in supporting the combat against autoimmune diseases. These nanovesicles have revitalized available treatment modalities as they are biocompatible, biodegradable, less immunogenic and capable of carrying high drug payloads to deliver both hydrophilic as well as lipophilic drugs to specific sites via passive or active targeting. Due to their unique surface chemistry, they can be decorated with physiological or synthetic ligands to target specific receptors overexpressed in different autoimmune diseases and can even cross the blood-brain barrier. This review presents exhaustive yet concise information on the potential of various nanovesicular systems as drug carriers in improving the overall therapeutic efficiency of the dosage regimen for various autoimmune diseases. The role of endogenous exosomes as biomarkers in the diagnosis and prognosis of autoimmune diseases along with monitoring progress of treatment will also be highlighted.


2021 ◽  
Vol 21 ◽  
Author(s):  
Madhukar Garg ◽  
Anju Goyal ◽  
Sapna Kumari

: Cubosomes are highly stable nanostructured liquid crystalline dosage delivery form derived from amphiphilic lipids and polymer-based stabilizers converting it in a form of effective biocompatible carrier for the drug delivery. The delivery form comprised of bicontinuous lipid bilayers arranged in three dimensional honeycombs like structure provided with two internal aqueous channels for incorporation of number of biologically active ingredients. In contrast liposomes they provide large surface area for incorporation of different types of ingredients. Due to the distinct advantages of biocompatibility and thermodynamic stability, cubosomes have remained the first preference as method of choice in the sustained release, controlled release and targeted release dosage forms as new drug delivery system for the better release of the drugs. As lot of advancement in the new form of dosage form has bring the novel avenues in drug delivery mechanisms so it was matter of worth to compile the latest updates on the various aspects of mentioned therapeutic delivery system including its structure, routes of applications along with the potential applications to encapsulate variety drugs to serve health related benefits.


2020 ◽  
Vol 17 ◽  
Author(s):  
Shuyuan Li ◽  
Yue Tang ◽  
Yushun Dou

Background: Exosomes, one of the extracellular vesicles, are widely present in all biological fluids and play an important role in intercellular communication. Because of its hydrophobic lipid bilayer and aqueous hydrophilic core structure, it is considered a possible alternative to liposome drug delivery systems. Not only do they protect the cargo like liposomes during delivery, they are less toxic and better tolerated. However, due to the lack of sources and methods for obtaining enough exosomes, the therapeutic application of exosomes as drug carriers is limited. Methods: A literature search was performed using the ScienceDirect and PubMed electronic databases to obtain information from published literature on milk exosomes related to drug delivery. Results: Here, we briefly reviewed the current knowledge of exosomes, expounded the advantages of milk-derived exosomes over other delivery vectors, including a higher yield, the oral delivery characteristic and additional therapeutic benefits. The purification and drug loading methods of milk exosomes, and the current application of milk exosomes were also introduced. Conclusion: The emergence of milk-derived exosomes is expected to break through the limitations of exosomes as therapeutic carriers of drugs. We hope to raise awareness of the therapeutic potential of milk-derived exosomes as a new drug delivery system.


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