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Gelatin-methacryloyl (GelMA) is a semi-synthetic hydrogel which consists of gelatin derivatized with a majority of methacrylamide and a minority of methacrylate groups. GelMA hydrogels have been widely used for various biomedical applications due to their suitable biological properties. It crosslinks when exposed to light irradiation to form hydrogels with tunable mechanical properties. This novel hydrogel has been successfully synthesized at CRLab. Congratulations to our team members Mr. Razmjoee, Dr. Arabzadeh and Dr. Ahmadi for this valuable achievement. CRLab has recently fabricated artificial blood vessels using GelMA
Congratulations to Mr. Hamed Yekta and Mr. Saeid Esmaeili for their recent achievements as Chemical and Mechanical Engineers at CRLab. They developed a bio-polymer dress to protect skin lesions and new generation of soft tissue within 3D printer. It has been made of biopolymer that has no toxicity and side effect to skin surface as well as bioactivity and biodegradability features.
One of the unique aspects of their project is the drug at the surface of the coating, which promotes healing of the wound, eliminates severe skin trauma and also prevents skin discoloration and infection.
The mentioned product has shown proper wound healing response in animal evaluation performed on a rabbit, whose results were very positive and impressive. Mr. Yekta and Mr. Esmaeili were appreciated for fabrication and preparation of these products with an expert team consist of Mechanical, Chemical and Biomaterials Engineers as well as other members of the Saber-Samandari laboratory.
Congratulations to Dr Khandan for his recent achievement as a biomechanical engineer in CRLab. Dr. Khandan fabricated a complex 3D scaffold of ceramic-metallic component using 3D printing technique. The development could be a step toward on-demand printing of any complicated structure as artificial organs for use in implantation and other medical surgeries. Dr. Khandan and his assistant, Mr. Esmaeili, first used the process to make simple shapes, such as pyramids using CAD software. After that, they made complex 3D structures that mimicked parts of muscle or bony tissue and muscle-skeleton connective tissues for utilizing in magnetic therapy and hyperthermia application. They also printed shapes mimicking tumors with networks of blood vessels, which could be used as biological models to study cancers. Dr. Khandan tested the printed structures by implanting them in rabbits.
Dr. Khandan is a postdoctoral research fellow at Saber-Samandari Lab.
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