Gulf Times Qatar about 3-D Printing Competition won by Albert Liberski

In May issue of Gulf Times Qatar we can read a summary of the 3-D Challenge hosted by Texas A&M University at Qatar (Tamuq), where Albert Liberski won 1’st place in the 3-D Printing Competition.

3-D challenge newspaper

Printing hearts from seaweed

„The future of heart valve replacements may lie in a combination of seaweeds and 3D printing”

Please, read an article, where I highlight my conception of 3D printing of heart valves from alginate:

Artykuł screen


Additional links:

Link to the offline version (text only)

Link to *PDF copy of the article

3D Challenge at Texas A&M Qatar

From 1’st-3’rd of of May I had a chance to take part in 3D Challenge at Texas A&M Qatar, where I presented the principles of my project concerning 3D-printed heart valve scaffolds. The project’s presentation was distinguished for its scientific value and received a first place award.

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3D model of heart valve woven scaffold

3D model of heart valve woven scaffold’s performance during blood flow.

Bacterial bionanocellulose for heart valve tissue engineering

Bacterial bionanocellulose for heart valve tissue engineering – current status, progress and perspectives

  1. Developing 3D geometry of entire valve using controlled deposition of cellulose on the mandrel.

My plan is to cultivate the bacteria in such way, that at the end a readily heart valve will be obtained. The growth medium (or one of its constituents) should be formed appropriately. The bacteria will than produce cellulose, but only in the provided shape.

Advanced geometrical Ca- alginate structures were already obtained by me in similar manner (fig.1.).

Figure 1. Heart valve structures based on alginate

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On the way to the optimal design of an aortic heart valve -or- discovering the obvious?

The results of following survey were presented at Qatar Foundation Annual Research Conference 2016 (ARC’16) 22nd-23rd March 2016, Qatar National Convention Centre, Doha, Qatar

The first task of tissue engineer trying to make a scaffold of a heart valve, is to adapt some model of a heart valve to establish target geometries and properties that should be recreated in artificial scaffold. The natural way to do so is to conduct literature research and find the current scientific consensus on the topic. Here the problems start, each researcher seems to have an individual opinion about optimal geometry of valve. What makes situation more complex is that each researcher has carefully chosen arguments to explain why that particular design is better than others. Hence, the consensus is not there yet, we chosen to contribute to this discussion. The analysis of available reports enable to “cook out” 2 distinguishable and to some extent contrary hypothesis.

1st –the optimal architecture of artificial valve is an architecture of native one (Prof. Magdi Yacoub).

2nd-there is not such a thing as optimal architecture of a heart valve, and never will be

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