Development and Evaluation of Sustained Release Lipid Nanocarriers for Curcumin

2020 ◽  
Vol 5 (3) ◽  
pp. 224-235
Author(s):  
Harshal A. Pawar ◽  
Bhagyashree D. Bhangale
Keyword(s):  
Drug Delivery ◽  
Sustained Release ◽  
Drug Delivery Systems ◽  
Biological Activities ◽  
Curcuma Longa ◽  
Research Work ◽  
Elimination Rate ◽  
Delivery Systems ◽  
Physicochemical Stability ◽  
Wide Range

Background: Lipid based excipients have increased acceptance nowadays in the development of novel drug delivery systems in order to improve their pharmacokinetic profiles. Drugs encapsulated in lipids have enhanced stability due to the protection they experience in the lipid core of these nano-formulations. Phytosomes are newly discovered drug delivery systems and novel botanical formulation to produce lipophilic molecular complex which imparts stability, increases absorption and bioavailability of phytoconstituent. Curcumin, obtained from turmeric (Curcuma longa), has a wide range of biological activities. The poor solubility and wettability of curcumin are responsible for poor dissolution and this, in turn, results in poor bioavailability. To overcome these limitations, the curcumin-loaded nano phytosomes were developed to improve its physicochemical stability and bioavailability. Objective: The objective of the present research work was to develop nano-phytosomes of curcumin to improve its physicochemical stability and bioavailability. Methods: Curcumin-loaded nano phytosomes were prepared by using phospholipid Phospholipon 90 H using a modified solvent evaporation method. The developed curcumin nano phytosomes were evaluated by particle size analyzer and differential scanning calorimetry (DSC). Results: Results indicated that phytosomes prepared using curcumin and lipid in the ratio of 1:2 show good entrapment efficiency. The obtained curcumin phytosomes were spherical in shape with a size less than 100 nm. The prepared nano phytosomal formulation of curcumin showed promising potential as an antioxidant. Conclusion: The phytosomal complex showed sustained release of curcumin from vesicles. The sustained release of curcumin from phytosome may improve its absorption and lowers the elimination rate with an increase in bioavailability.

Delivery Systems for Birch-bark Triterpenoids and their Derivatives in Anticancer Research

2020 ◽  
Vol 27 (8) ◽  
pp. 1308-1336 ◽  
Author(s):  
Inese Mierina ◽  
Reinis Vilskersts ◽  
Māris Turks
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Biological Activities ◽  
Delivery Systems ◽  
Chemotherapeutic Agents ◽  
Birch Bark ◽  
Self Assembling ◽  
Wide Range ◽  
Synthetic Derivatives ◽  
Low Solubility

Birch-bark triterpenoids and their semi-synthetic derivatives possess a wide range of biological activities including cytotoxic effects on various tumor cell lines. However, due to the low solubility and bioavailability, their medicinal applications are rather limited. The use of various nanotechnology-based drug delivery systems is a rapidly developing approach to the solubilization of insufficiently bioavailable pharmaceuticals. Herein, the drug delivery systems deemed to be applicable for birch-bark triterpenoid structures are reviewed. The aforementioned disadvantages of birch-bark triterpenoids and their semi-synthetic derivatives can be overcome through their incorporation into organic nanoparticles, which include various dendrimeric systems, as well as embedding the active compounds into polymer matrices or complexation with carbohydrate nanoparticles without covalent bonding. Some of the known triterpenoid delivery systems consist of nanoparticles featuring inorganic cores covered with carbohydrates or other polymers. Methods for delivering the title compounds through encapsulation and emulsification into lipophilic media are also suitable. Besides, the birch-bark triterpenoids can form self-assembling systems with increased bio-availability. Even more, the self-assembling systems are used as carriers for delivering other chemotherapeutic agents. Another advantage besides increased bioavailability and anticancer activity is the reduced overall systemic toxicity in most of the cases, when triterpenoids are delivered with any of the carriers.

Advanced Technologies in DNA-based Nanomedicine

2021 ◽  
Vol 15 ◽  
Author(s):  
Ameneh Mohammadi ◽  
Pooria Gill ◽  
Pedram Ebrahimnejad ◽  
Said Abediankenari ◽  
Zahra Kashi
Keyword(s):  
Drug Delivery ◽  
Gene Therapy ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Dna Nanostructures ◽  
Medical Sciences ◽  
Rational Engineering ◽  
Advanced Technologies ◽  
Wide Range ◽  
Or Gene

: The application of nanotechnology in medicine and pharmaceutical purpose suggested a novel procedure in the nanotechnology terminology as nanomedicine. There is a wide range of applications for nanotechnology in medicine, such as the use of nanocarriers in drug delivery systems. Recently a remarkable attention to DNA has been made through its amazing functionality and its nature as a nanomaterial in biological systems. Since DNA is a biocompatible, the use of DNA as a nanomaterial in medicine has shown a great perspective of rational engineering of DNA nanostructures. According to new approaches in treatment of diseases in gene levels, gene therapy, using DNA as a nanomedicine possesses an important role in the medical sciences as the researchers published enormous papers and patents in the fields, for instance, the applications of DNA and DNA-based nanostructures as drug or gene nanocarriers, DNA-based diagnostics and DNA nanovasccines. Here, some examples of DNA-based nanomedicine in the patent frame were reviewed.

scholarly journals Bioceramics: from bone substitutes to nanoparticles for drug delivery

2019 ◽  
Vol 91 (4) ◽  
pp. 687-706 ◽  
Author(s):  
María Vallet-Regí
Keyword(s):  
Drug Delivery ◽  
Biomedical Applications ◽  
Drug Delivery Systems ◽  
Bone Repair ◽  
Research Team ◽  
Research Work ◽  
Bone Substitutes ◽  
Delivery Systems ◽  
Smart Drug ◽  
Smart Drug Delivery

Abstract Since the second half of the 20th century, bioceramics are used for bone repair and regeneration. Inspired by bones and teeth, and aimed at mimicking their structure and composition, several artificial bioceramics were developed for biomedical applications. And nowadays, in the 21st century, with the increasing prominence of nanoscience and nanotechnology, certain bioceramics are being used to build smart drug delivery systems, among other applications. This minireview will mainly describe both tendencies through the research work carried out by the research team of María Vallet-Regí.

scholarly journals A REVIEW ON CIPROFLOXACIN: DOSAGE FORM PERSPECTIVE

2018 ◽  
Vol 10 (4) ◽  
pp. 6 ◽  
Author(s):  
M. Vidyavathi ◽  
G. Srividya
Keyword(s):  
Drug Delivery ◽  
Mechanism Of Action ◽  
Bacterial Infections ◽  
Drug Delivery Systems ◽  
Dosage Form ◽  
Research Work ◽  
Delivery Systems ◽  
Drug Reactions ◽  
Methods Development ◽  
Pure Drug

Ciprofloxacin (CF) is one of the topmost selling antibiotics and it is available at a cheap cost which is used to treat many bacterial infections. Many research scientists are working on this drug for various applications on different drug delivery systems. The main objective of this paper is to enlighten about the details of pure drug CF and its delivery systems along with current research on this drug. This review focused on history, pharmacokinetics, mechanism of action, types of dosage form available in the market with their cost, current research going on this drug with their applications and methods development for estimation of CF. It also highlighted the possible interactions and adverse drug reactions of CF and patents available. The present review revealed that the only analytical method for estimation of CF was developed in the first decade, few drug delivery systems (DDS) of CF were developed in the second decade and more research work on the development of novel DDS of CF founded in the last decade.

Imprinted hydrophilic nanospheres as drug delivery systems for 5-fluorouracil sustained release

2009 ◽  
Vol 17 (1) ◽  
pp. 72-77 ◽  
Author(s):  
G. Cirillo ◽  
F. Iemma ◽  
F. Puoci ◽  
O. I. Parisi ◽  
M. Curcio ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Sustained Release ◽  
Drug Delivery Systems ◽  
Delivery Systems

Comparison of chitosan microsphere versus O-carboxymethyl chitosan microsphere for drug delivery systems

2017 ◽  
Vol 32 (5) ◽  
pp. 469-486 ◽  
Author(s):  
Gang Zhou ◽  
Jing Zhang ◽  
Jun Tai ◽  
Qianyi Han ◽  
Lei Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Sustained Release ◽  
Drug Delivery Systems ◽  
Controlled Drug Delivery ◽  
Delivery Systems ◽  
Carboxymethyl Chitosan ◽  
Cross Linking ◽  
Chitosan Microspheres ◽  
Chitosan Microsphere

The development of controlled drug delivery systems for bone regeneration, especially microspheres, has become a research hotspot in recent years. Chitosan and its derivative O-carboxymethyl chitosan have been considered to be an effective way for controlled drug delivery due to their nontoxicity and biodegradability. Currently, most of the studies have researched on synthesizing and characterizing chitosan and O-carboxymethyl chitosan. However, few studies have focused on the differences between chitosan microspheres and O-carboxymethyl chitosan microspheres directly. In this study, chitosan and O-carboxymethyl chitosan microspheres were developed by water-in-oil emulsification cross-linking method using vanillin as the cross-linking agent, and then their physicochemical properties were evaluated by Fourier transform infrared spectroscopy, scanning electron microscopy, and in vitro release testing. The results showed that O-carboxymethyl chitosan was successfully modified by adding carboxymethyl group at the chitosan C6 position.The particle size of chitosan microspheres (50–90 µm) was significantly larger than that of O-carboxymethyl chitosan microspheres (10–50 µm), and the drug release profile of O-carboxymethyl chitosan microspheres showed larger initial burst release within the first day and sustained release at the fourth day, while chitosan microspheres showed sustained release at the seventh day. In addition, Cell Counting Kit-8 assay showed that MC3T3-E1 proliferated well and highly expressed the alkaline phosphatase marker protein on both chitosan and O-carboxymethyl chitosan microspheres. Overall, both chitosan and O-carboxymethyl chitosan microspheres showed good biocompatibility, and chitosan microspheres were superior to O-carboxymethyl chitosan microspheres. Moreover, the different drug release rates suggest that chitosan and O-carboxymethyl chitosan microspheres have the potential to be used for the repair of different bone defects.

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