Skip to main content

Dynamic Hybrid Metal Nanoparticles-Gel Materials for Novel Applications (NanoGelMat)

Principal investigator

Category
Projekti Hrvatske zaklade za znanost
Project code
IP-2016-06-5983
Finance value
1.000.000
HRK
Start date
Mar 15th 2017
End date
Mar 14th 2021
Status
Done

The observation of chirality on inorganic nanoparticles (NPs) systems is an interesting and highly important phenomenon which has recently attracted considerable attention and has become a hot topic in nanoscience research.

Many novel and interesting properties of chiral NPs have been explored and studied, showing that these systems could be of significant importance in both fundamental and application-oriented research. Very recently we have introduced a new strategy for designing and preparing chiral NPs which relies on a gelator fiber-templated approach in which the local organization is driven by the information already inscribed on the gel fibers.

Plasmonic circular dichroism was obtained by chiral 3D organisation of gold nanorods, generated by their self-assembly onto a gel fiber template with twisted morphology. Circular dichroism measurements revealed intense plasmon-induced Cotton effect, and the highest anisotropy factor for metal nanoparticles in solution reported so far. The aim of this project is to gain a molecular-level understanding of the interaction of NPs with the gelators within the gel matrix and of the origin of the chirality observed in the inorganic NPs. Furthermore, a comprehensive understanding of the mechanism of the twist formation and control the chiral twists in oxalamide-based gelator assemblies will be sought.

The long-term objective of this project is to explore the correlation between the morphology of the chiral gel fibers and the SP-CD responses of NPs. More specifically, the project will focus on (1) the preparation of nanocomposite chiral materials built-up from supramolecular fibers of different morphology serving as templates for surface assembly of NPs; (2) the screening of their optical properties and on identifying the factors responsible for an efficient optical enhancement; (3) the determination of the characteristics and the origins of the chirality in NPs.

Other associates

  • Željka Ban, Institut Ruđer Bošković, Zagreb
  • Mateja Belovari, Institut Ruđer Bošković, Zagreb
  • Dr. Marijana Vinković, Institut Ruđer Bošković, Zagreb
  • Prof. Mario Cetina, Tekstilno-tehnološki fakultet, Sveučilište u Zagrebu
  • Prof. Massimo Cametti, Politecnico di Milano Italy

This site uses cookies.

Some of these cookies are essential, while others help us improve your experience by providing insights into how the site is being used.

For more detailed information on the cookies we use, please check our Privacy Policy.

  • Necessary cookies enable core functionality. The website cannot function properly without these cookies, and can only be disabled by changing your browser preferences.