Chromism induced by changes in the electronic states of dye molecules due to surface
adsorption is termed “adsorchromism” in this article. These changes of molecular electronic …

The utilization of smectite clay, swelling layered silicate, as scaffolds for designing functional
nanostructures was overviewed. Surface modification of smectites with organoammonium …

We have been investigating complexes composed of nanolayered materials with anionic
charges such as clay nanosheets and dye molecules such as cationic porphyrins. It was …

This paper proposes a unique phenomenon of the strong enhancement in the fluorescence
quantum yield (φf) and the excited lifetime (τ) of tetra-cationic porphyrazine dye (Pz) upon a …

Partial replacement of one structural element in a solid with another of a similar size was
conducted to impart functionality to the solids and modify their properties. This phenomenon …

Multiple (or multivalent) interaction is the key in many biological systems. One of the most
important (photo-) chemical reactions, photosynthesis, is driven by regularly aligned …

Two types of+ 3-charged subporphyrin derivatives with m-and p-methylpyridinium as the
meso-aryl substituents were designed and synthesized. Their photophysical properties with …

A supramolecular host–guest assembly composed of a cationic organic cavitand (host),
neutral aromatic molecules (guests), and an anionic clay nanosheet has been prepared and …

Surface-fixation induced emission is a fluorescence enhancement phenomenon, which is
expressed when dye molecules satisfy a specific adsorption condition on the anionic clay …

Sažetak Porphyrins are a group of organic heterocyclic macromolecules, composed of four
modified pyrrole subunits interconnected at their α carbon atoms via methine bridges. This …