Layer-By-Layer Assembly of β-Estradiol Loaded Mesoporous Silica Nanoparticles on Titanium Substrates and Its Implication for Bone Homeostasis

2010 ◽  
Vol 22 (37) ◽  
pp. 4146-4150 ◽  
Author(s):  
Yan Hu ◽  
Kaiyong Cai ◽  
Zhong Luo ◽  
Klaus D. Jandt
2014 ◽  
Vol 47 (2) ◽  
pp. 190-194 ◽  
Author(s):  
Kiyofumi Katagiri ◽  
Shin-ichiro Yamazaki ◽  
Kei Inumaru ◽  
Kunihito Koumoto

Pharmaceutics ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 844
Author(s):  
Thorben Fischer ◽  
Inga Winter ◽  
Robert Drumm ◽  
Marc Schneider

The transport of macromolecular drugs such as oligonucleotides into the lungs has become increasingly relevant in recent years due to their high potency. However, the chemical structure of this group of drugs poses a hurdle to their delivery, caused by the negative charge, membrane impermeability and instability. For example, siRNA to reduce tumour necrosis factor alpha (TNF-α) secretion to reduce inflammatory signals has been successfully delivered by inhalation. In order to increase the effect of the treatment, a co-transport of another anti-inflammatory ingredient was applied. Combining curcumin-loaded mesoporous silica nanoparticles in nanostructured cylindrical microparticles stabilized by the layer-by-layer technique using polyanionic siRNA against TNF-α was used for demonstration. This system showed aerodynamic properties suited for lung deposition (mass median aerodynamic diameter of 2.85 ± 0.44 µm). Furthermore, these inhalable carriers showed no acute in vitro toxicity tested in both alveolar epithelial cells and macrophages up to 48 h incubation. Ultimately, TNF-α release was significantly reduced by the particles, showing an improved activity co-delivering both drugs using such a drug-delivery system for specific inhibition of TNF-α in the lungs.


Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1206 ◽  
Author(s):  
Kun Nie ◽  
Xiang Yu ◽  
Navnita Kumar ◽  
Yihe Zhang

A viable short FITC-peptide immobilization is the most essential step in the fabrication of multilayer films based on FITC-peptide. These functional multilayer films have potential applications in drug delivery, medical therapy, and so forth. These FITC-peptides films needed to be handled with a lot of care and precision due to their sensitive nature. In this study, a general immobilization method is reported for the purpose of stabilizing various kinds of peptides at the interfacial regions. Utilizing Mesoporous silica nanoparticles can help in the preservation of these FITC-peptides by embedding themselves into these covalently cross-linked multilayers. This basic outlook of the multilayer films is potent enough and could be reused as a positive substrate. The spatio-temporal retention property of peptides can be modulated by varying the number of capping layers. The release speed of guest molecules such as tyrosine within FITC-peptide or/and adamantane (Ad)-in short peptides could also be fine-tuned by the specific arrangements of the multilayers of mesoporous silica nanoparticles (MSNs) and hyaluronic acid- cyclodextrin (HA-CD) multilayer films.


2014 ◽  
Vol 26 (22) ◽  
pp. 6418-6431 ◽  
Author(s):  
Qing-Lan Li ◽  
Yanfang Sun ◽  
Yu-Long Sun ◽  
Jijie Wen ◽  
Yue Zhou ◽  
...  

2017 ◽  
Vol 70 ◽  
pp. 386-395 ◽  
Author(s):  
Gaoqiang Xu ◽  
Xinkun Shen ◽  
Liangliang Dai ◽  
Qichun Ran ◽  
Pingping Ma ◽  
...  

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