Patterning two-dimensional free-standing surfaces with mesoporous conducting polymers.
Shaohua Liu,Shaohua Liu,Pavlo Gordiichuk,Zhong-Shuai Wu,Zhaoyang Liu,Wei Wei,Manfred Wagner,Nasser Mohamed-Noriega,Dongqing Wu,Yiyong Mai,Andreas Herrmann,Klaus Müllen,Xinliang Feng,Xinliang Feng +13 more
TL;DR: This work develops a versatile route to pattern two-dimensional free-standing surfaces in a controlled manner assisted by monomicelle close-packing assembly of block copolymers, which is unambiguously revealed by direct visual observation.
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Abstract: The ability to pattern functional moieties with well-defined architectures is highly important in material science, nanotechnology and bioengineering. Although two-dimensional surfaces can serve as attractive platforms, direct patterning them in solution with regular arrays remains a major challenge. Here we develop a versatile route to pattern two-dimensional free-standing surfaces in a controlled manner assisted by monomicelle close-packing assembly of block copolymers, which is unambiguously revealed by direct visual observation. This strategy allows for bottom-up patterning of polypyrrole and polyaniline with adjustable mesopores on various functional free-standing surfaces, including two-dimensional graphene, molybdenum sulfide, titania nanosheets and even on one-dimensional carbon nanotubes. As exemplified by graphene oxide-based mesoporous polypyrrole nanosheets, the unique sandwich structure with adjustable pore sizes (5-20 nm) and thickness (35-45 nm) as well as enlarged specific surface area (85 m(2) g(-1)) provides excellent specific capacitance and rate performance for supercapacitors. Therefore, this approach will shed light on developing solution-based soft patterning of given interfaces towards bespoke functions.
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Citations
Targeted Drug Delivery in Covalent Organic Nanosheets (CONs) via Sequential Postsynthetic Modification
Shouvik Mitra,Himadri Sekhar Sasmal,Himadri Sekhar Sasmal,Tanay Kundu,Tanay Kundu,Sharath Kandambeth,Sharath Kandambeth,Kavya Illath,Kavya Illath,David Díaz Díaz,David Díaz Díaz,Rahul Banerjee,Rahul Banerjee +12 more
TL;DR: A facile, salt-mediated synthesis of covalent organic frameworks (COFs) in the presence of p-toluenesulfonic acid resulted in simultaneous chemical delamination and functionalization to targeted CONs, which showed sustained release of the drug to the cancer cells through receptor-mediated endocytosis, which led to cancer cell death via apoptosis.
528
Multiscale structural and electronic control of molybdenum disulfide foam for highly efficient hydrogen production.
Jiao Deng,Haobo Li,Suheng Wang,Ding Ding,Mingshu Chen,Chuan Liu,Zhong-Qun Tian,Kostya S. Novoselov,Chao Ma,Dehui Deng,Dehui Deng,Xinhe Bao +11 more
TL;DR: This study demonstrates the validity of multiscale control in molybdenum disulfide via overall consideration of the mass transport, and the accessibility, quantity and capability of active sites towards electrocatalytic hydrogen evolution, which may also be extended to other energy-related processes.
Self-Exfoliated Guanidinium-Based Ionic Covalent Organic Nanosheets (iCONs)
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Flexible All-Solid-State Supercapacitors with High Volumetric Capacitances Boosted by Solution Processable MXene and Electrochemically Exfoliated Graphene
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TL;DR: Li et al. as mentioned in this paper proposed an approach to improve the performance of a key laboratory of the Chinese Academy of Sciences by using the Niu State Key Laboratory of Electroanalytical Chemistry.
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