Johannes Leunissen

Title: Johannes Leunissen: Innovator in Cryopreservation Technology

Introduction

Johannes Leunissen, located in Dunedin, New Zealand, is a remarkable inventor known for his contributions to cryopreservation technology. With one patented invention to his name, Leunissen has made significant strides in the field of high-pressure freezing devices, paving the way for advancements in sample preservation methods.

Latest Patents

Leunissen's patent, titled "Specimen holder for a high-pressure freezing device," introduces a novel method for preparing hydrous, cryopreserved samples. This innovation involves the careful introduction of sample material into a sealed sample container, which is then subjected to controlled cooling using cryogens. This method allows for a sacrificial region of the container contents to solidify initially, followed by the entire contents solidifying in a precise temporal and spatial sequence. The design of the sample container he proposes is notably tubular, sealed at both ends, and ideally shaped in a U-configuration, enhancing its effectiveness for such applications.

Career Highlights

Currently working at Leica Mikrosysteme GmbH, Leunissen has been at the forefront of research and development within the realm of high-pressure freezing technologies. His invention is particularly relevant for laboratories and research institutions that require optimal sample preservation methods to maintain the integrity of biological specimens.

Collaborations

Throughout his career, Johannes has collaborated with his esteemed coworker Paul Wurzinger. This partnership has allowed for a rich exchange of ideas and expertise, driving the innovation of valuable technologies in their field.

Conclusion

Johannes Leunissen stands out as an inventive force in the arena of cryopreservation technologies. His patented methods demonstrate a blend of scientific ingenuity and practical application, contributing significantly to the enhancement of specimen preservation processes. As he continues his work at Leica Mikrosysteme GmbH, the potential for further innovations remains promising, impacting research and medical fields on a global scale.