scholarly journals Mesoporous silica–chondroitin sulphate hybrid nanoparticles for targeted and bio-responsive drug delivery

2015 ◽  
Vol 39 (3) ◽  
pp. 1754-1760 ◽  
Author(s):  
Krishna Radhakrishnan ◽  
Jasaswini Tripathy ◽  
Akshay Datey ◽  
Dipshikha Chakravortty ◽  
Ashok M. Raichur

A polysaccharide based gatekeeper is attached to seal the nanopores of drug mesoporous silica nanoparticles, which facilitates uptake by cancer cells and undergoes intracellular degradation to initiate drug release.

2017 ◽  
Vol 53 (62) ◽  
pp. 8755-8758 ◽  
Author(s):  
Song Wang ◽  
Fei Liu ◽  
Xiang-Ling Li

We constructed a versatile drug delivery system using dual internal stimulus, achieving controllable release and monitoring simultaneously.


Nanoscale ◽  
2015 ◽  
Vol 7 (14) ◽  
pp. 6304-6310 ◽  
Author(s):  
Yuxia Tang ◽  
Hao Hu ◽  
Molly Gu Zhang ◽  
Jibin Song ◽  
Liming Nie ◽  
...  

A photoresponsive drug delivery system was developed for light-mediated drug release and aptamer-targeted cancer therapy.


2016 ◽  
Vol 52 (95) ◽  
pp. 13775-13778 ◽  
Author(s):  
Xin Wang ◽  
Li-Li Tan ◽  
Xi Li ◽  
Nan Song ◽  
Zheng Li ◽  
...  

A new drug delivery system, based on mesoporous silica nanoparticles gated by carboxylatopillar[5]arene-modified gold nanoparticles, has been fabricated for controlled drug release.


2014 ◽  
Vol 32 (2) ◽  
pp. 205-212 ◽  
Author(s):  
Xue Yang ◽  
Dinggeng He ◽  
Xiaoxiao He ◽  
Kemin Wang ◽  
Zhen Zou ◽  
...  

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 916 ◽  
Author(s):  
Miguel Gisbert-Garzarán ◽  
María Vallet-Regí

Mesoporous silica nanoparticles have been broadly applied as drug delivery systems owing to their exquisite features, such as excellent textural properties or biocompatibility. However, there are various biological barriers that prevent their proper translation into the clinic, including: (1) lack of selectivity toward tumor tissues, (2) lack of selectivity for tumoral cells and (3) endosomal sequestration of the particles upon internalization. In addition, their open porous structure may lead to premature drug release, consequently affecting healthy tissues and decreasing the efficacy of the treatment. First, this review will provide a comprehensive and systematic overview of the different approximations that have been implemented into mesoporous silica nanoparticles to overcome each of such biological barriers. Afterward, the potential premature and non-specific drug release from these mesoporous nanocarriers will be addressed by introducing the concept of stimuli-responsive gatekeepers, which endow the particles with on-demand and localized drug delivery.


2013 ◽  
Vol 538 ◽  
pp. 93-96
Author(s):  
Xin De Tang ◽  
Fa Qi Yu ◽  
Ye Chen ◽  
Mei Shan Pei

Mesoporous silica nanoparticles (MSNs) have been employed as a versatile solid support for constructing a variety of hybrid materials for controlled drug delivery. Controlled release systems that integrate external stimuli with nanocarriers have attracted much attention for sensors and drug delivery applications. Mesoporous silica nanoparticles grafted with thermo-sensitive polymers on the surface were fabricated via “grafting to” approach through chemical coupling reaction. The encapsulation and release of drug based on the thermo-sensitive nanogated system were investigated. The thermo-sensitive nanogated system can be expected as one of the promising candidates for drug delivery and controlled release.


Cancer is one of the main causes of death worldwide. Chemotherapy is the most common method for cancer therapy which represent non-specific side effects on normal cells and tissues and drug resistance in cancer cells. There are two main mechanisms for Multi Drug Resistance (MDR) in cancer cells including: drug efflux pump and activation of anti-apoptotic pathways. Cancer chemotherapy disadvantages can be overcome by using nanoparticulate drug delivery systems like Mesoporous Silica Nanoparticles (MSNs) that have been used as drug delivery system since 2001. The present review included synthesis, targeted (active or passive) drug delivery to cancer cells, co-delivery of anticancer drugs and siRNA by MSNs and its toxicity. This review revealed that MSNs are good candidate for drug delivery to cancer cells due to its unique properties including: controllable pore and particle sizes, thermal and chemical stability, modifications of outer and inner surfaces of nanoparticles for drug and siRNA loading, attachment of ligand for targeted drug delivery, high drug loading capacity and controlled drug release, biocompatibility and biodegradation in aqueous medium.


Nano Letters ◽  
2013 ◽  
Vol 13 (6) ◽  
pp. 2576-2583 ◽  
Author(s):  
Stephan A. Mackowiak ◽  
Alexandra Schmidt ◽  
Veronika Weiss ◽  
Christian Argyo ◽  
Constantin von Schirnding ◽  
...  

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