Mojtaba Koosha

Dr. Mojtaba Koosha

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2020 in International Journal of Biological Macromolecules
Verified
Journal Article
Closed access
PTParisa Taheri
Parisa Taheri
RJReza Jahanmardi
Reza Jahanmardi
MKMojtaba Koosha
Mojtaba Koosha
SAShabnam Abdi
Shabnam Abdi

1 July 2019 in Colloids and Surfaces B: Biointerfaces
Verified
Journal Article
Closed access
MKMojtaba Koosha
Mojtaba Koosha
MRMohammad Raoufi
Mohammad Raoufi
HMHamideh Moravvej
Hamideh Moravvej


Verified
Journal Article
Open access
PDF file
MKMojtaba Koosha
Mojtaba Koosha
HAHadis Aalipour
Hadis Aalipour
MSMohammad Javad Sarraf Shirazi
Mohammad Javad Sarraf Shirazi
AJAli Jebali
Ali Jebali
HCHong Chi
Hong Chi
HMHamideh Moravvej
Hamideh Moravvej
Chitosan/PVA hydrogel films crosslinked by the freeze–thaw method and containing honey and allantoin were prepared for application as wound dressing materials. The effects of the freeze–thaw process and the addition of honey and allantoin on the swelling, the gel content and the mechanical properties of the samples were evaluated. The physicochemical properties of the samples, with and without the freeze–thaw process, were compared using FTIR, DSC and XRD. The results showed that the freeze–thaw process can increase the crystallinity and thermal stability of chitosan/PVA films. The freeze–thaw process increased the gel content but did not have a significant effect on the tensile strength. The presence of honey reduced the swelling and the tensile strength of the hydrogels due to hydrogen bonding interactions with PVA and chitosan chains. Long-term cell culture experiments using normal human dermal fibroblast (NHDF) cells showed that the hydrogels maintained their biocompatibility, and the cells showed extended morphology on the surface of the hydrogels for more than 30 days. The presence of honey significantly increased the biocompatibility of the hydrogels. The release of allantoin from the hydrogel was studied and, according to the Korsmeyer–Peppas and Weibull models, the mechanism was mainly diffusional. The results for the antimicrobial activity against E. coli and S. aureus bacteria showed that the allantoin-containing samples had a more remarkable antibacterial activity against S. aureus. According to the wound healing experiments, 98% of the wound area treated by the chitosan/PVA/honey hydrogel was closed, compared to 89% for the control. The results of this study suggest that the freeze–thaw process is a non-toxic crosslinking method for the preparation of chitosan/PVA hydrogels with long term biocompatibility that can be applied for wound healing and skin tissue engineering.

6 October 2020 in Polymer Composites
Verified
Journal Article
Closed access
PDF file
MPMohammadali Pourmohammadi‐Mahunaki
Mohammadali Pourmohammadi‐Mahunaki
VHVahid Haddadi‐Asl
Vahid Haddadi‐Asl
HRHossein Roghani-Mamaqani
Hossein Roghani-Mamaqani
MKMojtaba Koosha
Mojtaba Koosha
MYMohammad Yazdi
Mohammad Yazdi

26 February 2021 in Cellulose
Verified
Journal Article
Closed access
PDF file
JRJalal Ranjbar
Jalal Ranjbar
MKMojtaba Koosha
Mojtaba Koosha
HCHong Chi
Hong Chi
AGAmir Ghasemi
Amir Ghasemi
FZFatemeh Zare
Fatemeh Zare
TLTianduo Li
Tianduo Li