نتایج جستجو برای: homogenization , nanocrystals

تعداد نتایج: 18882  

Journal: :iranian journal of pharmaceutical research 0
dina louis associate professor, pharmaceutics dept., faculty of pharmacy, cairo univ., cairo, egypt

atorvastatin calcium, the lipid lowering agent, is taken as a model drug characterized by poor water solubility and bioavailability. in this study an attempt was made for preparation of nanocrystals using high pressure homogenization. a number of stabilizers were included as well as polymers at different concentrations, and the formulations were homogenized for ten cycles at a pressure of 1000 ...

2013
RACHMAT MAULUDIN RAINER H. MÜLLER

Hesperidin nanocrystals was generated by high pressure homogenization. The physicochemical properties of a spray dried hesperidin nanocrystals were investigated including to re-dispersion, crystalline state, kinetic solubility, dissolution velocity. Hesperidin nanosuspension with concentration of 10% (w/v) was dried by a Mini Spray-dryer B-190. Photon correlation spectroscopy (PCS) and laser di...

Journal: :Nanoscale 2017
Leyre Gomez Chris de Weerd Jose L Hueso Tom Gregorkiewicz

Cesium lead halide perovskite nanocrystals are being lately explored for optoelectronic applications due to their emission tunability, high photoluminescence quantum yields, and narrow emission bands. Nevertheless, their incompatibility with polar solvents and composition homogenization driven by a fast anion-exchange are still important drawbacks to overcome. Herein we report on a successful e...

Atorvastatin calcium, the lipid lowering agent, is taken as a model drug characterized by poor water solubility and bioavailability. In this study an attempt was made for preparation of nanocrystals using high pressure homogenization. A number of stabilizers were included as well as polymers at different concentrations, and the formulations were homogenized for ten cycles at a pressure of 1000 ...

Journal: :International Journal of Nanomedicine 2008
Jens-Uwe A H Junghanns Rainer H Müller

Nanotechnology will affect our lives tremendously over the next decade in very different fields, including medicine and pharmacy. Transfer of materials into the nanodimension changes their physical properties which were used in pharmaceutics to develop a new innovative formulation principle for poorly soluble drugs: the drug nanocrystals. The drug nanocrystals do not belong to the future; the f...

Atorvastatin calcium, the lipid lowering agent, is taken as a model drug characterized by poor water solubility and bioavailability. In this study an attempt was made for preparation of nanocrystals using high pressure homogenization. A number of stabilizers were included as well as polymers at different concentrations, and the formulations were homogenized for ten cycles at a pressure of 1000 ...

Journal: :Molecules 2016
Yuanbiao Xie Yueqin Ma Junnan Xu Yang Liu Pengfei Yue Qin Zheng Pengyi Hu Ming Yang

This study is aimed at seeking a nature saponin-based stabilizer for drug nanosuspensions. A poorly soluble drug (baicalein, BCL) was used as a model drug. BCL nanosuspensions with particle size of 156 nm were prepared by means of homogenization and converted into BCL nanocrystals (BCL-NC) stabilized with panax notoginseng saponins (PNS). It was found that PNS was able to prevent the aggregatio...

2016
Xiaofeng Yang Yingying Liu Yanna Zhao Meihua Han Yifei Guo Haixue Kuang Xiangtao Wang

10-Hydroxycamptothecin (10-HCPT) is a promising anticancer drug with a wide spectrum of antitumor activities. Due to its poor solubility, the carboxylate form that shows high water solubility but minimal anticancer activity and pharmacokinetic defects is used in the marketed 10-HCPT injections, resulting in its limited clinical application. To develop a simple, safe, and highly effective drug d...

2016
Jian-hua liang Fan Shi Yi-fei Wang Zhi-ping Wang Bin Han

This work aims to develop carbomer (934, 0.25%) loaded polydatin nanocrystals hydrogel (Pol-NaH) as a novel dermal formulation..Polydatin nanocrystals were prepared by high pressure homogenization technique, applying 1500 bar up to 15 cycles. The long-term storage stability of Pol-NaH was studied after stored at room temperature for 180 days. The physicochemical characteristics of Pol-NaH were ...

Journal: :Bioresource technology 2010
Haiyun Liu Dagang Liu Fei Yao Qinglin Wu

Nano-sized cellulose crystals were fabricated from microcrystalline cellulose (MCC) using combined sulfuric acid hydrolysis and high-pressure homogenization techniques. The crystals were then utilized to prepare polymethylmethacrylate (PMMA) nanocomposites by the solution casting method. The cellulose nanocrystals had diameters from about 8 to 10nm and lengths in the range of 60-120 nm. Wide-an...

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