Emerging Technologies to Target Drug Delivery to the Skin – the Role of Crystals and Carrier-Based Systems in the Case Study of Dapsone

2020 ◽  
Vol 37 (12) ◽  
Author(s):  
Gabriela Schneider-Rauber ◽  
Debora Fretes Argenta ◽  
Thiago Caon
2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Shi Zeng ◽  
Fengbo Wu ◽  
Bo Li ◽  
Xiangrong Song ◽  
Yu Zheng ◽  
...  

An amphiphilic polymer RGD-PEG-Chol which can be produced in large scale at a very low cost has been synthesized successfully. The synthesized intermediates and final products were characterized and confirmed by1H nuclear magnetic resonance spectrum (1H NMR) and Fourier transform infrared spectrum (FT-IR). The paclitaxel- (PTX-) loaded liposomes based on RGD-PEG-Chol were then prepared by film formation method. The liposomes had a size within 100 nm and significantly enhanced the cytotoxicity of paclitaxel to B16F10 cell as demonstrated by MTT test (IC50= 0.079 μg/mL of RGD-modified PTX-loaded liposomes compared to 9.57 μg/mL of free PTX). Flow cytometry analysis revealed that the cellular uptake of coumarin encapsulated in the RGD-PEG-Chol modified liposome was increased for HUVEC cells. This work provides a reasonable, facile, and economic approach to prepare peptide-modified liposome materials with controllable performances and the obtained linear RGD-modified PTX-loaded liposomes might be attractive as a drug delivery system.


2017 ◽  
Vol 78 (6) ◽  
pp. 283-291 ◽  
Author(s):  
Yuan Sun ◽  
Chen Kang ◽  
Fei Liu ◽  
You Zhou ◽  
Lei Luo ◽  
...  

Economics ◽  
2015 ◽  
pp. 1541-1563
Author(s):  
Sergio Ricardo Mazini

This chapter presents an approach to the role of software engineering in developing solutions for new mobile technologies, like tablets. It discusses the importance of the new standards brought by emerging technologies such as engineering and how software must adapt to this new reality in order to identify the needs of data, information, integration, shares, and other issues that will contribute to the life cycle of these solutions. The chapter also discusses the contribution of users in the development process and improve these solutions. The research method is the case study conducted in industrial companies that use a digital catalog solution and sales force automation for tablets. This chapter presents a new approach based on commercial tablets which is supported by a platform of software and services called commercially Nimiam (www.nimiam.com.br).


2018 ◽  
Vol 57 (2) ◽  
pp. 175-182
Author(s):  
E.G. Zemtsova ◽  
A.N. Ponomareva ◽  
A.Y. Arbenin ◽  
V.M. Smirnov

Abstract The important stage of the development of smart material for the target drug delivery is the construction of the magnetic part of this material, including mesoporous silica and magnetic nanoparticles (Fe3O4or Fe0). Such a systemwill allow carry outmagnetic decapsulation (excretion) of drug from smart material using the magnetic field of a given value in the right place of the body. The paper considers the features of synthesis mesoporous silica MCM-41 with various pore diameter (33-51 Å) and synthesis of superparamagnetic nanoparticles of magnetite or metallic iron in the pores of mesoporous silica. The dependence of magnetic properties of nanocomposites MCM-41/Fe0 and MCM-41/Fe3O4 from the pore diameters of MCM-41 templates is studied. It was found that the matrix has a decisive influence on the content of iron or magnetite nanoparticles. The saturation magnetization of the material increases with increasing pore size of the mesoporous matrix. Nanocomposites MCM-41/Fe0 and MCM-41/Fe3O4 exhibit superparamagnetism, that allows them to be used as a magnetic material for targeted drug delivery.


2020 ◽  
Vol 35 (1) ◽  
pp. 15-27 ◽  
Author(s):  
Taicheng Lu ◽  
Zhenzhen Nong ◽  
Liying Wei ◽  
Mei Wei ◽  
Guo Li ◽  
...  

In this study, a transferrin/folic acid double-targeting graphene oxide drug delivery system loaded with doxorubicin was designed. Graphene oxide was prepared by ultrasound improved Hummers method and was modified with Pluronic F68, folic acid, and transferrin to decrease its toxicity and to allow dual-targeting. The results show that the double target drug delivery system (TFGP*DOX) has good and controllable drug delivery performance with no toxicity. Moreover, TFGP*DOX has a better inhibitory effect on SMMC-7721 cells than does a single target drug delivery system (FGP*DOX). The results of drug release analysis and cell inhibition studies showed that TFGP*DOX has a good sustained release function that can reduce the drug release rate in blood circulation over time and improve the local drug concentration in or near a targeted tumor. Therefore, the drug loading system (TFGP*DOX) has potential application value in the treatment of hepatocellular carcinoma.


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