Student’s Spotlight – Hanno Holzinger

TimGunterStudent's Spotlight

Hanno is a PhD student at the Fibre and Polymer Technology department at KTH Royal Institute of Technology in Stockholm, focusing on the characterization of water transport phenomena in lignocellulosic systems. To understand the diffusive behaviour of water, Hanno’s research involves utilizing advanced characterization techniques like pulsed-field gradient nuclear magnetic resonance spectroscopy (PFG NMR), neutron scattering techniques and coarse-grained molecular dynamics (MD) simulations. Interactions between cellulose and water are important, whether in biological processes, e.g. in plant cells or the fabrication and performance of state-of-the-art sustainable materials based on nanocellulose. By improving our understanding of cellulose-water interactions, Hanno’s research will help in the customized development of nanocellulose materials for applications in drug delivery, filtration systems, and other innovative technologies that propel the nanoscale on a broad leap towards a more sustainable future.

 

Hanno’s research primarily focuses on method development in order to reveal how diffusion dynamics are affected in cellulosic materials and is also the most enjoyable part of the PhD project in his opinion. “Figuring out new ways to measure and analyse complex diffusion phenomena in cellulosic materials is especially intriguing as I get to combine my skills as a materials scientist while working with sustainable materials. Generally, biological materials have always fascinated me as they are made up of a relatively small spectrum of chemical elements and yet often show us complex properties.”, Hanno says. The most challenging aspect of his work is definitely sample preparation of the cellulosic dispersions with cleanliness being a high priority. Trace amounts of chemicals can already affect water dynamics and influence analysis, making it essential to keep the laboratory equipment clean.

“Being part of the SwedNess graduate school opened the door for me to a whole new world of unique characterization techniques that are quite helpful in shedding light on the interactions between cellulose and water. In this context, I highly appreciate the opportunities and hands-on experience at various neutron sources throughout the world, including a planned extended stay in Australia”, Hanno explains.

Concluding his thoughts about his overall academic experience and future prospects: “Even though each PhD brings its own challenges and setbacks, I am grateful for the experience. Throughout this journey, I have grown and learnt so much – not just in my professional capacity but also personally, developing new friendships across continents, all while working towards an exciting and sustainable future.”