3D Bioplotter Research Papers

Urinary tract disorders come at great discomfort to the patients suffering from them. To treat them, several potent drug substances are available but unfortunately, systemic drug therapy often comes along with undesired adverse effects. Previous work has therefore been conducted aiming at a local drug release in the urinary bladder. However, whether a therapeutically relevant drug concentration may be reached at the target site is not easy to determine when applying common compendial dissolution methods. Therefore, the aim of this study was to develop a biorelevant dissolution model able to take physiological conditions into consideration, i.e. urine flow rates, urination…

Discontinued treatment and non-adherence are oftentimes weaknesses of common first-line drug therapy against bladder conditions due to their negative side-effects. To overcome these limitations and increase patients’ quality of life, intravesical therapies are continuously being explored. 3D-printing offers the possibility of freely tailoring drug delivery systems to manufacture indwelling devices that may administer drugs locally over an extended time and avoiding frequently repeated administrations while minimizing systemic side-effects. In the present work, pressure-assisted micro syringe printing has been used to develop flexible drug-loaded inserts applicable via common urinary catheter that can remain up to several weeks inside the urinary bladder.…

3D printing has become a promising and revolutionary pill-making technique for the pharmaceutical industry, enabling a relatively low-cost personalized medicine. Fused deposition modelling, also known by its initials FDM, is the most affordable technology for this goal, printing the material by a layer-by-layer deposition. However, the pressure assisted microsyringe technique is more adequate for working with drug containing inks as it does not need high temperatures, preventing the drug degradation. However, to make this goal possible, high accuracy and reproducibility is required, avoiding trial and error procedures. Thus, a correlation between rheology, printing parameters and the printed object was investigated.…