scholarly journals Autonomous in Vitro Anticancer Drug Release from Mesoporous Silica Nanoparticles by pH-Sensitive Nanovalves

2010 ◽  
Vol 132 (36) ◽  
pp. 12690-12697 ◽  
Author(s):  
Huan Meng ◽  
Min Xue ◽  
Tian Xia ◽  
Yan-Li Zhao ◽  
Fuyuhiko Tamanoi ◽  
...  
Keyword(s):  
Drug Release ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Anticancer Drug ◽  
Mesoporous Silica Nanoparticles ◽  
Ph Sensitive

scholarly journals Photoacoustic ratiometric assessment of mitoxantrone release from theranostic ICG-conjugated mesoporous silica nanoparticles

Nanoscale ◽  
2019 ◽  
Vol 11 (39) ◽  
pp. 18031-18036 ◽  
Author(s):  
Giuseppe Ferrauto ◽  
Fabio Carniato ◽  
Enza Di Gregorio ◽  
Mauro Botta ◽  
Lorenzo Tei
Keyword(s):  
Drug Release ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Chemotherapeutic Drug

A nanosystem based on mesoporous silica functionalized with ICG and the chemotherapeutic drug mitoxantrone has been exploited to introduce an innovative photoacoustic ratiometric approach for the assessment of drug release both in vitro and in vivo.

pH-Sensitive nanogates based on poly(l-histidine) for controlled drug release from mesoporous silica nanoparticles

2016 ◽  
Vol 7 (7) ◽  
pp. 1475-1485 ◽  
Author(s):  
Panayiotis Bilalis ◽  
Leto-A. Tziveleka ◽  
Spyridon Varlas ◽  
Hermis Iatrou
Keyword(s):  
Drug Release ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Controlled Drug Release ◽  
Ph Sensitive ◽  
Ph Responsive

Mesoporous silica nanoparticles (MSNs) bearing poly(l-histidine)-grafted nanogates were prepared by surface-initiated ROP. The obtained polypeptide-functionalized MSNs were used as smart pH-responsive nanocarriers for controlled drug release applications.

scholarly journals Polymeric Mesoporous Silica Nanoparticles for Combination Drug Delivery In vitro

2020 ◽  
Vol 11 (4) ◽  
pp. 11905-11919
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Mesoporous Silica ◽  
Anticancer Activity ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Drug Formulation ◽  
Combination Drug ◽  
Dual Drug

Despite the recent advances and development of conventional cancer therapy strategies, treatments often lack specificity, resulting in low therapeutic efficiency, cancer recurrence, and drug resistance. With the advent of nanotechnology, nanoparticle-based delivery systems have steadily gained interest. The key to using any drug delivery system is its’ relative cytotoxicity, pharmacokinetics, and downstream immunological effects that may arise upon repetitive exposure. Among the nanoparticle systems, mesoporous silica nanoparticles (MSNs) have received favorable attention as potential drug delivery platforms. This study aimed to synthesize and functionalized MSNs with chitosan and polyethyleneglycol for improved stability, efficient drug loading, and drug release. These polymerized MSNs were physicochemically and morphologically characterized and assessed for their dual-drug [doxorubicin (DOX)/5-fluoruracil (5-FU)] loading, drug release kinetics, and anticancer activity in vitro. MSNs ranged from 35-70 nm in size, with a high surface area (809.44 m²/g) and a large pore volume (1.74 cm²/g). The DOX/5-FU co-loading produced a potent dual-drug formulation with good pH-responsive release profiles, high percentage release, especially from PEGylated MSNs, and significant anticancer activity the breast adenocarcinoma (MCF-7) and cervical cancer (HeLa) cells. This combination therapy's favorable outcomes suggest an improved therapeutic strategy that warrants investigation in an in vivo model.

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