scholarly journals In vitro release and in vitro–in vivo correlation for silybin meglumine incorporated into hollow-type mesoporous silica nanoparticles

2012 ◽  
pp. 753 ◽  
Author(s):  
Ximing Xu ◽  
Deng ◽  
Deng ◽  
Fu ◽  
Tong ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
In Vitro Release ◽  
Vitro Release

scholarly journals Indometacin loading and in vitro release properties from novel carbopol coated spherical mesoporous silica nanoparticles

2013 ◽  
Vol 171 ◽  
pp. 131-138 ◽  
Author(s):  
Borislav Tzankov ◽  
Krassimira Yoncheva ◽  
Margarita Popova ◽  
Agnes Szegedi ◽  
Georgi Momekov ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
In Vitro Release ◽  
Vitro Release

scholarly journals pH Responsive in Vitro Cargo Release of PEG Coated MSNs Is Governed by Buffer Composition

2020 ◽  
Author(s):  
Nidhi Sapre ◽  
Gaurav Das ◽  
Sneha Bajpe
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Standard Procedure ◽  
In Vitro Release ◽  
Citrate Buffer ◽  
Buffer Composition ◽  
The Right ◽  
Vitro Release

<p>The effect of different buffers on in vitro release of PEG coated mesoporous silica nanoparticles is discussed in this work. We prepared Rhodamine loaded and PEG coated mesoporous silica nanoparticles (PEG coated RhB@MSNs) of ~ 650 nm size and studied their release behaviour for 5 hours in various buffer solutions (both Na+ and K+ versions) prepared by standard procedure. We observed that Rhodamine release was highest in the citrate buffer. A comparison of different buffer effects on the in vitro release reveals that it is crucial to choose the right buffer for determining the loaded cargo release in each pH zone (acidic, neutral and basic). Clearly, choosing the wrong combination of buffers for different pH zones would result in completely different interpretation of the release behaviour.</p><div><br></div>

scholarly journals pH Responsive in Vitro Cargo Release of PEG Coated MSNs Is Governed by Buffer Composition

2020 ◽  
Author(s):  
Nidhi Sapre ◽  
Gaurav Das ◽  
Sneha Bajpe
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Standard Procedure ◽  
In Vitro Release ◽  
Citrate Buffer ◽  
Buffer Composition ◽  
The Right ◽  
Vitro Release

<p>The effect of different buffers on in vitro release of PEG coated mesoporous silica nanoparticles is discussed in this work. We prepared Rhodamine loaded and PEG coated mesoporous silica nanoparticles (PEG coated RhB@MSNs) of ~ 650 nm size and studied their release behaviour for 5 hours in various buffer solutions (both Na+ and K+ versions) prepared by standard procedure. We observed that Rhodamine release was highest in the citrate buffer. A comparison of different buffer effects on the in vitro release reveals that it is crucial to choose the right buffer for determining the loaded cargo release in each pH zone (acidic, neutral and basic). Clearly, choosing the wrong combination of buffers for different pH zones would result in completely different interpretation of the release behaviour.</p><div><br></div>

scholarly journals Mesoporous Silica Nanoparticles and Mesoporous Bioactive Glasses for Wound Management: From Skin Regeneration to Cancer Therapy

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3337
Author(s):  
Sara Hooshmand ◽  
Sahar Mollazadeh ◽  
Negar Akrami ◽  
Mehrnoosh Ghanad ◽  
Ahmed El-Fiqi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Skin Regeneration ◽  
Bioactive Molecules ◽  
Wound Management ◽  
Bioactive Glasses ◽  
Wide Range

Exploring new therapies for managing skin wounds is under progress and, in this regard, mesoporous silica nanoparticles (MSNs) and mesoporous bioactive glasses (MBGs) offer great opportunities in treating acute, chronic, and malignant wounds. In general, therapeutic effectiveness of both MSNs and MBGs in different formulations (fine powder, fibers, composites etc.) has been proved over all the four stages of normal wound healing including hemostasis, inflammation, proliferation, and remodeling. The main merits of these porous substances can be summarized as their excellent biocompatibility and the ability of loading and delivering a wide range of both hydrophobic and hydrophilic bioactive molecules and chemicals. In addition, doping with inorganic elements (e.g., Cu, Ga, and Ta) into MSNs and MBGs structure is a feasible and practical approach to prepare customized materials for improved skin regeneration. Nowadays, MSNs and MBGs could be utilized in the concept of targeted therapy of skin malignancies (e.g., melanoma) by grafting of specific ligands. Since potential effects of various parameters including the chemical composition, particle size/morphology, textural properties, and surface chemistry should be comprehensively determined via cellular in vitro and in vivo assays, it seems still too early to draw a conclusion on ultimate efficacy of MSNs and MBGs in skin regeneration. In this regard, there are some concerns over the final fate of MSNs and MBGs in the wound site plus optimal dosages for achieving the best outcomes that deserve careful investigation in the future.

Antimicrobial and antibiofilm activities of meropenem loaded-mesoporous silica nanoparticles against carbapenem-resistant Pseudomonas aeruginosa

2021 ◽  
pp. 088532822110038
Author(s):  
Mohammad Yousef Memar ◽  
Mina Yekani ◽  
Hadi Ghanbari ◽  
Edris Nabizadeh ◽  
Sepideh Zununi Vahed ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Carbapenem Resistant ◽  
Toxicity In Vitro ◽  
Different Levels

The aims of the present study were the determination of antimicrobial and antibiofilm effects of meropenem-loaded mesoporous silica nanoparticles (MSNs) on carbapenem resistant Pseudomonas aeruginosa ( P. aeruginosa) and cytotoxicity properties in vitro. The meropenem-loaded MSNs had shown antibacterial and biofilm inhibitory activities on all isolates at different levels lower than MICs and BICs of meropenem. The viability of HC-04 cells treated with serial concentrations as MICs and BICs of meropenem-loaded MSNs was 92–100%. According to the obtained results, meropenem-loaded MSNs display the significant antibacterial and antibiofilm effects against carbapenem resistant and biofilm forming P. aeruginosa and low cell toxicity in vitro. Then, the prepared system can be an appropriate option for the delivery of carbapenem for further evaluation in vivo assays.

Redox-Responsive Nanocarrier Based on Heparin End-Capped Mesoporous Silica Nanoparticles for Targeted Tumor Therapy in Vitro and in Vivo

Langmuir ◽  
2014 ◽  
Vol 30 (26) ◽  
pp. 7867-7877 ◽  
Author(s):  
Liangliang Dai ◽  
Jinghua Li ◽  
Beilu Zhang ◽  
Junjie Liu ◽  
Zhong Luo ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Tumor Therapy ◽  
Redox Responsive

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.

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