Recent advances in polymeric and solid lipid–based nanoparticles for controlled drug delivery

Author(s):  
Manu Sharma ◽  
Namita Gupta ◽  
Ranju Soni ◽  
Ankita Gautam ◽  
Kakarla Raghava Reddy ◽  
...  
2017 ◽  
Vol 7 (11) ◽  
pp. 1175 ◽  
Author(s):  
Zhuqing Wang ◽  
Lucio Colombi Ciacchi ◽  
Gang Wei

Author(s):  
Sonia Dhiman ◽  
Gurjeet Singh Thakur ◽  
Shivangi Anand ◽  
Priyanka Yadav

Zidovudine is one of the chief nucleoside analogue and reverse inhibitor licensed for HIV infection which is placed along with a group of retroviruses. The present research study on Zidovudine solid dosage form surveyed the feasibility utilizing solid lipid nanoparticles (SLNs) for controlled drug delivery of zidovudine embracing glyceryl behenate as lipidic material, tween 80 as a stabilizer and blend of sodium chelate with poloxamer as surfactant. The SLNs were prepared utilizing high pressure homogenization followed by ultrasonication method. The prepared SLNs were characterized by particle size analysis, polydispersity index, zeta potential, DSC, TEM, IR spectroscopy, and X-ray diffractometry. Narrow size distribution of the particles was marked having polydispersity index values under 0.8. The high zeta potential of the different SLN formulations additionally showed their physical stability. Differential scanning calorimetry and powder X-ray diffraction showed decline in crystallinity of drug in the nanoparticle formulation. In vitro release study showed sustained release for up to 12 hours in the SLN formulations prepared. The current study results revealed that zidovudine SLN formulation prepared by high pressure homogenization followed by ultrasonication is a suitable method for controlled drug delivery system.


Nanomedicine ◽  
2019 ◽  
Vol 14 (24) ◽  
pp. 3213-3230 ◽  
Author(s):  
De-Xiang Zhang ◽  
Lars Esser ◽  
Roshan B Vasani ◽  
Helmut Thissen ◽  
Nicolas H Voelcker

Porous silicon (pSi) nanomaterials are increasingly attractive for biomedical applications due to their promising properties such as simple and feasible fabrication procedures, tunable morphology, versatile surface modification routes, biocompatibility and biodegradability. This review focuses on recent advances in surface modification of pSi for controlled drug delivery applications. A range of functionalization strategies and fabrication methods for pSi-polymer hybrids are summarized. Surface engineering solutions such as stimuli-responsive polymer grafting, stealth coatings and active targeting modifications are highlighted as examples to demonstrate what can be achieved. Finally, the current status of engineered pSi nanomaterials for in vivo applications is reviewed and future prospects and challenges in drug-delivery applications are discussed.


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