Related Experiment Video
Updated: Feb 14, 2026

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
Published on: August 2, 2012
Triple Noncovalent-Interaction-Containing Supramolecular Polymer Vesicle Chemosensors with Dynamically Tunable
Tingting Liu1, Shuodong Wang1, Yanran Li1
1MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shanxi Key Laboratory of, Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, China.
Abstract:
Chemosensors (CSs) with dynamically tunable detection ranges have important significance for their expansion in practical applications; however, most CSs possess an unchangeable detection limit. In this work, we report the first example of a supramolecular polymer vesicle (SPV) chemosensor with a dynamically tunable detection range. SPVs containing porphyrin (PP) moieties and β-cyclodextrin (β-CD)/azobenzene (Azo) host-guest interactions were first constructed. The obtained SPVs were used to detect Zn2+ with a high selectivity and sensitivity over a wide detection limit range of 8.67×10-9 to 1.99×10-11 under UV light irradiation. The corresponding sensing mechanism was attributed to the synergistic effects of the triple noncovalent interactions, including the metal-ligand coordination of PP/Zn2+ and the double host-guest interactions of β-CD/Azo and β-CD/PP.
Related Concept Videos
Noncovalent Attractions in Biomolecules
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
Noncovalent Attractions in Biomolecules
Polymers
Polymers
Range
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
Scalar and Vector Triple Products
The scalar triple product is the dot product of a vector with the cross product of two vectors....

