A Janus-Type Phthalocyanine for the Assembly of Photoactive DNA Origami Coatings

Abstract

Design and synthesis of novel photosensitizer architectures is a key step toward new multifunctional molecular materials. Photoactive Janus-type molecules provide interesting building blocks for such systems by presenting two well-defined chemical functionalities that can be utilized orthogonally. Herein a multifunctional phthalocyanine is reported, bearing a bulky and positively charged moiety that hinders their aggregation while providing the ability to adhere on DNA origami nanostructures via reversible electrostatic interactions. On the other hand, triethylene glycol moieties render a water-soluble and chemically inert corona that can stabilize the structures. This approach provides insight into the molecular design and synthesis of Janus-type sensitizers that can be combined with biomolecules, rendering optically active biohybrids.

Controlling aggregation-induced emission by supramolecular interactions and colloidal stability in ionic emitters for light-emitting electrochemical cells

“…, OLEDs or solar cells), respectively. While chemical design of non-aggregating dyes, 7,8 or directed aggregation 9,10 has been pursued with success, a radically different approach has been explored to turn dye aggregation into a desirable feature.…”

“…5,6 Thus, aggregation limits their applicability as high payload imaging agents, phototherapeutic agents, or in lighting devices (e.g., OLEDs or solar cells), respectively. While chemical design of non-aggregating dyes, 7,8 or directed aggregation 9,10 has been pursued with success, a radically different approach has been explored to turn dye aggregation into a desirable feature.…”

Controlling Aggregation-Induced Emission by Supramolecular Interactions and Colloidal Stability in Ionic Emitters for Light-Emitting Electrochemical Cells

“…5,6 Thus, aggregation limits their applicability as high payload imaging agents, phototherapeutic agents, or in lighting devices (e.g., OLEDs or solar cells), respectively. While chemical design of non-aggregating dyes, 7,8 or directed aggregation 9,10 has been pursued with success, a radically different approach has been explored to turn dye aggregation into a desirable feature.…”