Transferable, transparent and functional polymer@graphene 2D objects
Source abstract
Abstract
Compared with inorganic two-dimensional (2D) materials, such as graphene and transition metal dichalcogenides, organic 2D materials are believed to possess more interesting chemical and biological properties for certain applications, such as separation membranes, smart surfaces, sensors, catalysis and drug delivery. However, the study of organic 2D materials is largely hindered because of the lack of effective methods to produce them. This paper presents a new type of organic 2D material, namely ‘polymer@graphene 2D objects’, that can be synthesized via a simple and scalable chemistry. Polymer@graphene 2D objects are made of functional polymer brushes that tether one end of the polymer chain on the surface of graphene sheets via non-covalent π-π stacking interactions. These materials are transparent, freestanding, lightweight, flexible, transferable to various substrates with good stability and are patternable into different structures. Their functionality can be tailored by changing the polymer brushes that are immobilized. In this paper, we demonstrate the applications of these 2D objects in the smart control of surface wettability and DNA biosensors. Chinese researchers have developed a simple and scalable route to a new family of quasi-two-dimensional (2D) polymers with expected uses in a range of chemical and biological applications. The team, led by Zijian Zheng at Hong Kong Polytechnic University and Feng Zhou at the Chinese Academy of Sciences, tethered one end of functionalized polymer chains to the surface of supporting graphene sheets through noncovalent π-π stacking interactions to create 2D freestanding structures. By changing the functionalization of the polymers, the researchers could control the properties of the resulting structures. These quasi-2D polymers are transparent, light-weight and flexible and can also be transferred to a variety of material surfaces. The team demonstrated their use in enabling the heat-responsive surface wettability of previously unreactive surfaces and in the construction of DNA biosensors. Graphene-supported polymer brushes were developed as a new type of functional quasi-2D polymers that are transparent, lightweight, freestanding, flexible, transferable and patternable. These 2D objects are demonstrated to be functional sheets for the responsive control of surface wettability and DNA biosensors.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Graphene research and applications · 2D Materials and Applications · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
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