Chemically Fueled Block Copolymer Self‐Assembly into Transient Nanoreactors**

Abstract

In chemically fueled supramolecular materials, molecular self‐assembly is coupled to a fuel‐driven chemical reaction cycle. The fuel‐dependence makes the material dynamic and endows it with exciting properties like adaptivity and autonomy. In contrast to the large work on the self‐assembly of small molecules, we herein designed a diblock copolymer, which self‐assembles into transient micelles when coupled to a fuel‐driven chemical reaction cycle. Moreover, we used these transient block copolymer micelles to locally increase the concentration of hydrophobic reagents and thereby function as a transient nanoreactor.

Molekulare Selbstorganisation 2.0

“…Unsere Edukte sind so konzipiert, dass sie gut löslich sind, jedoch bei Aktivierung assemblieren. Wir haben diese Konzepte getestet: an selbstlöschenden Etiketten, die beispielsweise anzeigen, wann ein Lebensmittel das Mindesthaltbarkeitsdatum oder ein Arzneimittel das Verwendungsdatum überschritten hat, 3) an temporären Nanoreaktoren, die eine Reaktion für eine begrenzte Zeit katalysieren, 4) und an Emulsionen, die hydrophobe Medikamente über ihre programmierbare Lebensdauer abgeben. 5)…”

Chemically fueled materials with a self-immolative mechanism: transient materials with a fast on/off response

“…When a finite amount of fuel is added to such a system, a material emerges, and it autonomously decays when it runs out of fuel. 5 The building blocks of these materials are typically self-assembling molecules and yield supramolecular materials like fibers, 6 vesicles, 7 micelles, 8 colloids, 9 oil-or coacervate based droplets, 10 nanoparticles, 11 hybridized DNA 12 and others. We and others applied chemically fueled assemblies as transient materials, e.g.…”

Self‐Sustained Marangoni Flows Driven by Chemical Reactions**

“…[3] As a hallmark of life, these processes occur under out-of-equilibrium conditions, and are maintained by dissipation of energy via chemical reactions. Over the past decade, many synthetic systems have been built to emulate these out-of-equilibrium dynamics [4,5] in matter with life-like properties, exemplified by reaction networks that display circadian oscillations, [6][7][8] adaptive responses, [9] self-assembled structures with transient properties mediated by chemical reactions, [10][11][12][13][14][15][16][17][18] or patterns [19][20][21][22][23] that selforganize from homogeneous start conditions. These phenomena are typically established in solution and rely on the delivery of chemical reagents by external flow, diffusion, [24] or convection.…”