scholarly journals Traditional, unfairly forgotten, rarely used and promising drug delivery methods in ophthalmology: a clinical interpretation (part 1)

2019 ◽  
Vol 12 (2) ◽  
pp. 83-95 ◽  
Author(s):  
A. V. Kuroyedov ◽  
V. V. Brzhesky ◽  
E. A. Krinitsyna
Keyword(s):  
Drug Delivery ◽  
Side Effects ◽  
Drug Concentration ◽  
Targeted Drug Delivery ◽  
Anatomical Structure ◽  
Delivery Methods ◽  
Clinical Interpretation ◽  
Physiological Properties ◽  
Challenging Tasks ◽  
Targeted Drug

Ocular targeted drug delivery is one of the most challenging tasks for pharmaceutical researchers and practical ophthalmologists. The possibilities of drug delivery to the eye are naturally determined by the anatomical structure of the eye and its physiological properties, which restrict the period when therapeutically required drug concentration could be maintained. Combined drug delivery schemes may, potentially, improve the patient’s acceptance of treatment, reduce side effects, increase efficacy, and eventually preserve vision.

scholarly journals A Prototype Therapeutic Capsule Endoscope for Ultrasound-Mediated Targeted Drug Delivery

2018 ◽  
Vol 03 (02) ◽  
pp. 1840001 ◽  
Author(s):  
Fraser Stewart ◽  
Antonella Verbeni ◽  
Yongqiang Qiu ◽  
Ben F. Cox ◽  
Jan Vorstius ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Crohn’S Disease ◽  
Side Effects ◽  
Capsule Endoscopy ◽  
Targeted Drug Delivery ◽  
Capsule Endoscope ◽  
Proof Of Concept ◽  
Gi Tract ◽  
Preliminary Results ◽  
Targeted Drug

The prevalence of gastrointestinal (GI) diseases such as Crohn’s disease, which is chronic and incurable, are increasing worldwide. Treatment often involves potent drugs with unwanted side effects. The technological–pharmacological combination of capsule endoscopy with ultrasound-mediated targeted drug delivery (UmTDD) described in this paper carries new potential for treatment of these diseases throughout the GI tract. We describe a proof-of-concept UmTDD capsule and present preliminary results to demonstrate its promise as an autonomous tool to treat GI diseases.

Approaches for Targeted Drug Delivery to Colon

2010 ◽  
Vol 3 (1) ◽  
Author(s):  
Shyam Prasad ◽  
Vidhu Aeri ◽  
Yashwant .
Keyword(s):  
Drug Delivery ◽  
Drug Interaction ◽  
Gastrointestinal Tract ◽  
Side Effects ◽  
Drug Delivery System ◽  
Targeted Drug Delivery ◽  
Biological Membrane ◽  
Colonic Disease ◽  
Conventional Drug ◽  
Targeted Drug

The conventional drug delivery system for colonic disease may leads to absorption of drug across biological membrane of gastrointestinal tract (GIT). The absorption of drug throughout GIT may leads to increase in dose and associated side effects. Colon targeted drug delivery (CTDD) is a method of delivering medication to a patient in a manner that increases concentration of the medication in colon relative to other part of GIT. The aim of CTDD is to prolong, localize, target and have protected drug interaction to diseased tissue. The present review deals with primary as well as recent approaches of delivery of drug to colon.

Herbal Based Polymeric Nanoparticles as a Therapeutic Remedy for Breast Cancer

2020 ◽  
Vol 20 ◽  
Author(s):  
Mohd Mughees ◽  
Saima Wajid
Keyword(s):  
Breast Cancer ◽  
Drug Delivery ◽  
Targeted Drug Delivery ◽  
Polymeric Nanoparticles ◽  
Herbal Extract ◽  
Future Research ◽  
Delivery Methods ◽  
Cancer Breast ◽  
Conventional Drug ◽  
Targeted Drug

Background: The currently available anti breast cancer agents as well as conventional drug delivery methods have some limitations. Objective: In view of these limitations, researchers used phytochemicals/herbal extracts as anti-breast cancer agents together with the polymeric nanoparticles to provide an effective way of targeted drug delivery with lesser /no side effects. Methods: The literature for this review was searched during the year 2014 to 2018 by using the keywords, ‘ ‘breast cancer’, ‘breast cancer and its current treatments’, ‘plants against the breast cancer’, ‘polymeric nanoparticles’, ‘herbal based polymeric nanoparticles’. The databases i.e. PubMed, Science Direct and Google Scholar were used for collecting the information. Results: In the present review, we try to summarize the potential of herbal based nanoformulation as specific and high efficacy therapeutic strategy in order to pave a way for the future research involving screening and use of herbal nanoparticles for the treatment of breast cancer. Conclusion: The encapsulation of the herbal extract in the polymeric nanoparticles is the prominent, effective and emerging way of targeted drug delivery for cancer. It may serve as safer way of targeted drug delivery and may be the answer of the complications related to the currently available anti-breast cancer agents as well as limitations of conventional method of drug delivery.

Investigating drug delivery of 5-fluorouracil by assistance of an iron-modified graphene scaffold: Computational studies

2021 ◽  
pp. 1-8
Author(s):  
Mohammad Hasan Kamel Attar Kar ◽  
Mohammad Yousefi
Keyword(s):  
Drug Delivery ◽  
Side Effects ◽  
Targeted Drug Delivery ◽  
Molecular Orbitals ◽  
Computational Studies ◽  
Final Remark ◽  
Anti Cancer ◽  
Computational Work ◽  
Targeted Drug ◽  
Modified Graphene

This computational work was performed to investigate drug delivery of 5-fluorouracil (FU) anti-cancer by assistance of an iron(Fe)-modified graphene (G) scaffold. The models were optimized to reach the minimized energy structures in both of singular and bimolecular models. Two models of FU@G complex were obtained including O2@G and O4@G by relaxation of FU through O2 and O4 atoms towards the Fe-atom region of G surface. The obtained results of energies indicated a higher stability and strength for the O2@G model in comparison with the O4@G model. The quantitative and qualitative features of electronic molecular orbitals indicated the investigated G surface could work as a carrier of FU by reducing the unwanted side effects and also playing the sensor role. As a final remark of this work, the investigated G model could be proposed for employing in the targeted drug delivery of FU in both of carrier and sensor agents.

scholarly journals A Review of Biodegradable Natural Polymer-Based Nanoparticles for Drug Delivery Applications

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1970 ◽  
Author(s):  
Humaira Idrees ◽  
Syed Zohaib Javaid Zaidi ◽  
Aneela Sabir ◽  
Rafi Ullah Khan ◽  
Xunli Zhang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Targeted Drug Delivery ◽  
Drug Delivery Systems ◽  
Natural Polymer ◽  
Natural Polymers ◽  
Sustained Drug Release ◽  
Delivery Methods ◽  
Lower Toxicity ◽  
Targeted Drug

Biodegradable natural polymers have been investigated extensively as the best choice for encapsulation and delivery of drugs. The research has attracted remarkable attention in the pharmaceutical industry. The shortcomings of conventional dosage systems, along with modified and targeted drug delivery methods, are addressed by using polymers with improved bioavailability, biocompatibility, and lower toxicity. Therefore, nanomedicines are now considered to be an innovative type of medication. This review critically examines the use of natural biodegradable polymers and their drug delivery systems for local or targeted and controlled/sustained drug release against fatal diseases.

scholarly journals MAGNETIC MICROSPHERE AN EMERGING DRUG DELIVERY SYSTEM

2017 ◽  
Vol 10 (6) ◽  
pp. 54 ◽  
Author(s):  
Diksha Sharma ◽  
Abhishek Sharma
Keyword(s):  
Drug Delivery ◽  
Side Effects ◽  
Drug Delivery System ◽  
Delivery System ◽  
Targeted Drug Delivery ◽  
The Body ◽  
Magnetic Microspheres ◽  
Magnetic Microsphere ◽  
Targeted Drug ◽  
Novel Drug

  The drug delivery system has been advanced to release the drug according to the body requirement during the entire period of treatment and also for the delivery at the targeted site. Several novel drug delivery systems have emerged encompassing different route of administration to achieve controlled and targeted drug delivery, magnetic microsphere carrier being one of them. Magnetic microsphere is an alternative to traditional radiation methods. As the traditional radiation methods use highly penetrating radiation that is absorbed throughout the body and cause side effects hence its use is limited. Therefore, a safe and effective alternate is needed like magnetic microsphere. The excessive circulating drug particles are minimized by this delivery system. Moreover, the aim of specific targeting is to enhance the effectiveness of drug delivery and at the same time to lessen the toxicity and side effects. Magnetic carriers receive magnetic responses to a magnetic field from incorporated materials that are used for magnetic microsphere are chitosan, dextran, etc. One of the most utilized magnetic microspheres is serum albumine whether from human or other suitable animals. Drug release from the albumin microsphere can be controlled by various stabilization procedures. Overall, the targeted magnetic microsphere is much valuable novel drug delivery system for what more work have to be done. By knowing the importance of all this, the present paper reviews the mechanism, preparation, and applications of magnetic microspheres. As the targeted drug delivery system implies selective and effective localization of drug into the target at therapeutic concentrations with limited access to non-target sites. Magnetic microspheres hold great promises for reaching the goal of controlled and site-specific drug delivery.

scholarly journals Design of Nanoparticle-Based Carriers for Targeted Drug Delivery

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Xiaojiao Yu ◽  
Ian Trase ◽  
Muqing Ren ◽  
Kayla Duval ◽  
Xing Guo ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Targeted Drug Delivery ◽  
Active Targeting ◽  
Physical Interaction ◽  
Computational Simulations ◽  
Delivery Methods ◽  
Passive Targeting ◽  
Drug Delivery Vehicles ◽  
Delivery Vehicles ◽  
Targeted Drug

Nanoparticles have shown promise as both drug delivery vehicles and direct antitumor systems, but they must be properly designed in order to maximize efficacy. Computational modeling is often used both to design new nanoparticles and to better understand existing ones. Modeled processes include the release of drugs at the tumor site and the physical interaction between the nanoparticle and cancer cells. In this paper, we provide an overview of three different targeted drug delivery methods (passive targeting, active targeting, and physical targeting) and compare methods of action, advantages, limitations, and the current stages of research. For the most commonly used nanoparticle carriers, fabrication methods are also reviewed. This is followed by a review of computational simulations and models on nanoparticle-based drug delivery.

scholarly journals Nanotechnology in Drug Delivery for Liver Fibrosis

2022 ◽  
Vol 8 ◽  
Author(s):  
Lihong Gu ◽  
Feng Zhang ◽  
Jinhui Wu ◽  
Yuzheng Zhuge
Keyword(s):  
Drug Delivery ◽  
Liver Cirrhosis ◽  
Side Effects ◽  
Liver Fibrosis ◽  
Liver Injury ◽  
Liver Cancer ◽  
Targeted Drug Delivery ◽  
Development Work ◽  
Disease Course ◽  
Targeted Drug

Liver fibrosis is a reversible disease course caused by various liver injury etiologies, and it can lead to severe complications, such as liver cirrhosis, liver failure, and even liver cancer. Traditional pharmacotherapy has several limitations, such as inadequate therapeutic effect and side effects. Nanotechnology in drug delivery for liver fibrosis has exhibited great potential. Nanomedicine improves the internalization and penetration, which facilitates targeted drug delivery, combination therapy, and theranostics. Here, we focus on new targets and new mechanisms in liver fibrosis, as well as recent designs and development work of nanotechnology in delivery systems for liver fibrosis treatment.

TEMPERATURE AND PH RESPONSIVE POLYMERIC NANOPARTICLES FOR TARGETED OXALIPLATIN DELIVERY

INDIAN DRUGS ◽  
2018 ◽  
Vol 55 (11) ◽  
pp. 74-77
Author(s):  
A. S Patil ◽  
◽  
A. P. Gadad
Keyword(s):  
Drug Delivery ◽  
Side Effects ◽  
Targeted Drug Delivery ◽  
Polymeric Nanoparticles ◽  
Ph Responsive ◽  
In Vitro Drug Release ◽  
Dual Responsive ◽  
Targeted Drug ◽  
Targeted Drug Delivery System

In the present study temperature and pH responsive co-polymer chitosan-g-poly(N-isopropylacrylamide) (CS-g-PNIPAAm) was synthesized, characterized and efficiently loaded with oxaliplatin. Nanoparticles were evaluated for their physicochemical properties. The drug loaded nanoparticles showed smooth and spherical morphology with loading efficiency and drug content of about 80.7% and 48.7%, respectively. The in vitro drug release was significantly higher at tumor extracellular pH and temperature when compared to physiological pH and temperature. In conclusion, the developed nanoparticulate system is an effective dual responsive targeted drug delivery system for oxaliplatin with low toxic side effects.

Carbon Dots as Nanotherapeutics for Biomedical Application

2020 ◽  
Vol 26 (19) ◽  
pp. 2207-2221 ◽  
Author(s):  
Eemaan N. Cohen ◽  
Pierre P.D. Kondiah ◽  
Yahya E. Choonara ◽  
Lisa C. du Toit ◽  
Viness Pillay
Keyword(s):  
Drug Delivery ◽  
Side Effects ◽  
Targeted Drug Delivery ◽  
Carbon Dots ◽  
Water Solubility ◽  
Biomedical Application ◽  
Drug Efficacy ◽  
Cost Effective ◽  
Carbon Nanodots ◽  
Targeted Drug

Carbon nanodots are zero-dimensional spherical allotropes of carbon and are less than 10nm in size (ranging from 2-8nm). Based on their biocompatibility, remarkable water solubility, eco- friendliness, conductivity, desirable optical properties and low toxicity, carbon dots have revolutionized the biomedical field. In addition, they have intrinsic photo-luminesce to facilitate bio-imaging, bio-sensing and theranostics. Carbon dots are also ideal for targeted drug delivery. Through functionalization of their surfaces for attachment of receptor-specific ligands, they ultimately result in improved drug efficacy and a decrease in side-effects. This feature may be ideal for effective chemo-, gene- and antibiotic-therapy. Carbon dots also comply with green chemistry principles with regard to their safe, rapid and eco-friendly synthesis. Carbon dots thus, have significantly enhanced drug delivery and exhibit much promise for future biomedical applications. The purpose of this review is to elucidate the various applications of carbon dots in biomedical fields. In doing so, this review highlights the synthesis, surface functionalization and applicability of biodegradable polymers for the synthesis of carbon dots. It further highlights a myriad of biodegradable, biocompatible and cost-effective polymers that can be utilized for the fabrication of carbon dots. The limitations of these polymers are illustrated as well. Additionally, this review discusses the application of carbon dots in theranostics, chemo-sensing and targeted drug delivery systems. This review also serves to discuss the various properties of carbon dots which allow chemotherapy and gene therapy to be safer and more target-specific, resulting in the reduction of side effects experienced by patients and also the overall increase in patient compliance and quality of life.

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