Ahtzaz, Samreen and Nasir, Muhammad and Shahzadi, Lubna and Amir, Walija and Anjum, Aneeq and Arshad, Rida and Iqbal, Farasat and Chaudhry, Aqif Anwar and Yar, Muhammad and Rehman, Ihtesham Ur (2017) A study on the effect of zinc oxide and zinc peroxide nanoparticles to enhance angiogenesis-pro-angiogenic grafts for tissue regeneration applications. Materials and Design, 132. pp. 409-418. ISSN 0264-1275
Full text not available from this repository.Abstract
Angiogenesis is a process of formation of new small blood vessels from existing vessels and is very critical for proper and rapid tissue healing. As reactive oxygen species (ROS) are known for their ability to promote angiogenesis, in this study zinc oxide (ZnO) and zinc peroxide (ZnO2) nano-particles (NP's) encapsulated chitosan (CS) and cellulose based hydrogels were synthesized. ZnO2 is comparatively stronger oxidizing agent as compared to ZnO, therefore, in this study it was hypothesized that ZnO2 would deliver better angiogenic potential than ZnO. Three types of hydrogels were prepared; control hydrogel (without nano-particles), hydrogel having ZnO NP's and hydrogel having ZnO2 NP's. The hydrogels were characterized by scanning electron microscopy (SEM) for structural morphology, Fourier transform infrared spectroscopy (FTIR) for chemical functional groups analyses and X-ray Diffraction (XRD) to investigate the crystalline or amorphous structure of NP's. The solution absorption capacity was tested in PBS and degradation was investigated in PBS, PBS/H2O2 and PBS/lysozyme solutions. The angiogenic behavior of these materials was studied in chorioallantoic membrane (CAM) assay and ZnO2 based material showed significant higher angiogenesis.