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Herein we show that by appending bulky β‐cyclodextrin (CD) groups onto sheet‐forming peptoids, we obtain cylindrical micelles that further assembly into membranes and intertwined ribbons on substrates in aqueous solution, depending on the choice of solution and substrate conditions. In situ atomic force microscopy (AFM) shows that micelle assembly occurs in two steps, starting with "precursor" particles that transform into worm‐like micelles, which extend and coalesce to form the higher order structures with a rate and a degree of cooperativity dependent on pH and Ca2+ concentration. After co‐assembly with hydrophobic 4‐(2‐hydroxyethylamino)‐7‐nitro‐2,1,3‐benzoxadiazole (NBD) donors that occupy the hydrophobic core, followed by exposure to hydrophilic Rhodamine B as acceptors that insert into cyclodextrin, the micelles exhibit highly efficient Förster resonance energy transfer efficiency in aqueous solution, thereby mimicking natural light harvesting systems. [ABSTRACT FROM AUTHOR]

Abstract This study presents the synthesis of a CO 2 -responsive surfactant namely 2‑alkyl‑1‑hydroxyethyl imidazoline (HEA n IBs n = 16, 18, 20), which exhibits satisfactory surface and adsorption properties. The micelle formation and adsorption of the above imidazoline based surfactant in aqueous solution were studied in this work. CMC, the effectiveness of surface tension reduction, the maximum surface excess concentration, the minimum area occupied per surfactant molecule at the air/water interface, and the micelle aggregation number were obtained by measuring surface tension. Dynamic light scattering indicates that when the surfactant concentration is 1.2 times the CMC, the hydrodynamic radii of the three surfactants studied were almost equal to 8 nm. Electrical conductivity measurements indicate the micellization of surfactants in aqueous solution. In addition, typical thermodynamic parameters, including Δ G m 0, Δ G ads 0, Δ H m 0, Δ S m 0, Δ H m A , Δ S m A , and Δ C p, m 0 were evaluated. The thermodynamic parameters show that micelle formation is entropy-and-enthalpy co-driven from 298 K to 318 K. We expect to elucidate the self-assembly of CO 2 -responsive surfactant in an aqueous solution. Highlights • A kind of CO 2 -responsive surfactant namely 2‑alkyl‑1‑hydroxyethyl imidazoline was synthesized. • Through surface tension measurements, CMCs and other interface parameters were obtained. • Electrical conductivity measurements indicate the micellization of surfactants in aqueous solution. • Thermodynamic parameters of micellization were evaluated. [ABSTRACT FROM AUTHOR]