Harri Kosonen

TL;DR: Mild enzymatic hydrolysis has been introduced and combined with mechanical shearing and a high-pressure homogenization, leading to a controlled fibrillation down to nanoscale and a network of long and highly entangled cellulose I elements.

TL;DR: Paakko et al. as mentioned in this paper demonstrate that such aqueous nanofibrillar gels are unexpectedly robust to allow formation of highly porous aerogels by direct water removal by freeze-drying.

TL;DR: For example, native cellulose I nanofibers allow flexible aerogels and hierarchically porous templates for functionalities as discussed by the authors. But they are not suitable for aerogel fabrication.

TL;DR: It is demonstrated that polymeric self-assembly, reversibility of hydrogen bonding, and polymer–additive phase behaviour allow temperature response in the solid state with large and reversible switching of an optical bandgap.

TL;DR: In this paper, the authors systematically search other hierarchies and phase transitions, a particular interest being hierarchies containing gyroid structures and the related order−order transitions, where poly(4-vinylpyridine) (P4VP) is used, where the pyridines are either directly hydrogen bonded with 3-pentadecylphenol (PDP) or first protonated with methanesulfonic acid (MSA).