Related Experiment Video
Updated: Apr 25, 2026

Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry
Published on: March 1, 2013
Physical Characterisation as an Insight into a Gene Delivery System Containing Cyclodextrins with Pluronic®-F127 and
Matthew Eng, Amal A Elkordy, Paul A McCarron
1Sciences Complex, City Campus, Chester Road, Sunderland, SR1 3SD, UK. amal.elkordy@sunderland.ac.uk.
Abstract:
Gene delivery into cells offers opportunities to treat various human genetic diseases. Effective gene delivery is dependent on its stability and ability to transfect across cells. DNA is susceptible to enzymatic degradation and its negatively charge are barriers towards successful transfection. DNA has to be protected from degradation and neutralised. Non-viral vectors are preferred carrier systems, therefore, the use of cyclodextrins with Pluronic(®)-F127 and folic acid at different concentrations to stabilise the formulation was investigated. Formulations were characterised in fresh and freeze dried forms. DNA stability in formulations was tested by determining the stability of DNA against enzymatic degradation. Degree of DNA inclusion into cyclodextrins was investigated using fluorescence spectroscopy. Thermal behaviour was studied using Differential Scanning Calorimetry (DSC). Incorporation of Pluronic(®)-F127 produced most stable formulations regarding enzymatic degradation. These formulations show high percentage inclusion. Shift of peaks in FTIR data, appearance of uniform particulate as detected by SEM and changing in the denaturation temperature as demonstrated by DSC data for Pluronic(®)-F127 containing formulations confirm clear interaction between Pluronic(®)-F127 and cyclodextrin/ DNA complex. It was noted that γ-cyclodextrin provide better protection and inclusion compared to β-cyclodextrin. Pluronic(®)-F127 with cyclodextrins is a promising combination to improve stability.
More Related Videos
07:40Gene Transfection toward Spheroid Cells on Micropatterned Culture Plates for Genetically-modified Cell Transplantation
Published on: July 31, 2015
08:53Synthesis, Functionalization, and Characterization of Fusogenic Porous Silicon Nanoparticles for Oligonucleotide Delivery
Published on: April 16, 2019
Related Concept Videos
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Modified-Release Drug Delivery Systems: Site-Targeted
Modified-Release Drug Delivery Systems: Rate-Programmed I
Drug Delivery Systems: Different Types
Modified-Release Drug Delivery Systems: Rate-Programmed II