Gold nanorods are promising platforms for label-free biosensing. We have functionalized gold nanorods with biotin thiol linkers of increasing chain length and evaluated their ability in the molecular detection of streptavidin. We have found an unexpected effect of the increase in linker length, which resulted in a substantial improvement of the plasmon response at surface saturation. The plasmo...

Post-synthesis DNA modification is a very useful method for DNA functionalization. This is achieved by using a modified NTP, which has a handle for further modifications, replacing the corresponding natural NTP in polymerase-catalyzed DNA synthesis. Subsequently, the handle can be used for further functionalization, preferably through a very fast reaction. Herein we describe polymerase-mediated...

Ruan, C.-Q. 2017. Functionalization, Characterization and Applications of Oxidized Nanocellulose Derivatives. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1548. 68 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0048-1. Cellulose, a sustainable raw material derived from nature, can be used for various applications following its...

The optical confinement generated by metal-based nanoapertures fabricated on a silica substrate has recently enabled single-molecule fluorescence measurements to be performed at physiologically relevant background concentrations of fluorophore-labeled biomolecules. Nonspecific adsorption of fluorophore-labeled biomolecules to the metallic cladding and silica bottoms of nanoapertures, however, r...

Magnetic particles that can be bound to cells and biomolecules have become an important tool for the application of force in biology and biotechnology. Multifunctional magnetic nanowires fabricated by electrochemical deposition in nanoporous templates are a type of magnetic carrier that offers significant potential advantages over commercially available magnetic particles. Recent experimental w...

A stepwise surface functionalization methodology was applied to nanostructured ZnO films grown by metal organic chemical vapor deposition (MOCVD) having three different surface morphologies (i.e., nanorod layers (ZnO films-N), rough surface films (ZnO films-R), and planar surface films (ZnO films-P). The films were grown on glass substrates and on the sensing area of a quartz crystal microbalan...

A d-xylose 3,5-anhydrosugar derivative has been used as an oxetane co-monomer in the ring-opening copolymerization (ROCOP) with cyclic anhydrides, to form a family of seven novel sugar-derived polyesters, up 100% renewable content. ROCOP proceeds high alternating selectivity AB-type copolymers that are thermally robust (Td,onset > 212 °C) and exhibit broad range glass-transition temperatures (T...