3D Bioplotter Research Papers

Displaying all papers about Dexamethasone (3 results)

A novel vehicle-like drug delivery 3D printing scaffold and its applications for a rat femoral bone repairing in vitro and in vivo

International Journal of Biological Sciences 2020 Volume 16, Issue 11, Pages 1821-1832

The high surface area ratio and special structure of mesoporous bioactive glass (MBG) endow it with excellent physical adsorption of various drugs without destroying the chemical activity. Silicate 1393 bioactive glass (1393) is famous for its fantastic biodegradability and osteogenesis. Herein, we have built a novel vehicle-like drug delivery 3D printing scaffold with multiplexed drug delivery capacity by coating MBG on the surface of 1393 (1393@MBG). Furthermore, we have applied DEX and BMP-2 on the 1393@MBG scaffold to endow it with antibacterial and osteogenic properties. Results indicated that this 1393@MBG scaffold could effectively load and controlled release BMP-2, DNA and…

Effect of Dexamethasone on Room Temperature Three-Dimensional Printing, Rheology, and Degradation of a Low Modulus Polyester for Soft Tissue Engineering

ACS Biomaterials Science & Engineering 2019 Volume 5, Issue 2, Pages 846–858

Three-dimensional (3D) printing has enabled benchtop fabrication of customized bioengineered constructs with intricate architectures. Various approaches are being explored to enable optimum integration of such constructs into the physiological environment including addition of bioactive fillers. In this work, we incorporated a corticosteroid drug, dexamethasone (Dex), in a low modulus polyester (SC5050) and examined the effect of Dex incorporation on solvent-, initiator-, and monomer-free pneumatic extrusion-based 3D printing of the polymer. Dex–SC5050 interactions were characterized by plotting thermodynamic binary phase diagrams based on the Flory–Huggins theory. The effect of Dex composition on the 3D printability of the SC5050 polyester was examined…

The effect of calcium sulfate incorporation on physiochemical and biological properties of 3D-printed mesoporous calcium silicate cement scaffolds

Microporous and Mesoporous Materials 2016 Volume 241, Issue 15, Pages 11–20

Development of 3D porous scaffolds with proper mechanical strength is crucial in bone tissue engineering. In this study, calcium sulfate hemihydrate (CSH) cement was functionally incorporated into mesoporous calcium silicate (MCS) through a 3D printing technique in order to improve the scaffold strength. Compared to printed MCS scaffolds, the characterizations revealed that 20% CSH incorporation had enhanced their compressive strength by 2 times via 4 weeks‘ hydration. Furthermore, CSH incorporation prevented the fast pH value rise and achieved a balanced degradation rate. SEM observations showed a good apatite formation on the surfaces of both MCS and MCS/CSH scaffolds. Cellular experiments…