Lithographically Patterned Breath Figure of Photoresponsive Small Molecules: Dual‐Patterned Honeycomb Lines from a Combination of Bottom‐Up and Top‐Down Lithography

Kim, Jung Hak; Seo, Myungeun; Kim, Sang Youl

doi:10.1002/adma.200900868

Cited by 78 publications

(69 citation statements)

References 55 publications

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“…121 is a gelator that can form organogel in chloroform. 372 Thus, during solution drying, it did not crystallize, and ordered BFAs were successfully prepared. Jiang et al used a ribbonlike assembly of a small molecule, alkylated guanosine derivatives (122,123), to fabricate ordered BFA films.…”

Section: Nonpolymeric Materialsmentioning

confidence: 99%

Breath Figure: A Nature-Inspired Preparation Method for Ordered Porous Films

2015

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Section: Nonpolymeric Materialsmentioning

confidence: 99%

Breath Figure: A Nature-Inspired Preparation Method for Ordered Porous Films

2015

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“…The handedness of the aggregates is exclusively dictated by the rotational direction of the CPL and can even be switched in a totally reversible manner. Furthermore, by incorporating a diacetylene (DA) moiety that undergoes topochemical photopolymerization by ultraviolet (254 nm) 24, 25 , we demonstrate that the desired handedness can be permanently locked by circularly polarized ultraviolet light (CPUL) irradiation, which knits the self-assembled structure with covalent bonds [26][27][28] . We believe this to be the first example of light-induced self-assembling systems where the entire process of induction, control and locking of supramolecular chirality can be solely manipulated by CPL.…”

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confidence: 99%

Induction and control of supramolecular chirality by light in self-assembled helical nanostructures

et al. 2015

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Evolution of supramolecular chirality from self-assembly of achiral compounds and control over its handedness is closely related to the evolution of life and development of supramolecular materials with desired handedness. Here we report a system where the entire process of induction, control and locking of supramolecular chirality can be manipulated by light. Combination of triphenylamine and diacetylene moieties in the molecular structure allows photoinduced self-assembly of the molecule into helical aggregates in a chlorinated solvent by visible light and covalent fixation of the aggregate via photopolymerization by ultraviolet light, respectively. By using visible circularly polarized light, the supramolecular chirality of the resulting aggregates is selectively and reversibly controlled by its rotational direction, and the desired supramolecular chirality can be arrested by irradiation with ultraviolet circularly polarized light. This methodology opens a route to ward the formation of supramolecular chiral conducting nanostructures from the self-assembly of achiral molecules.

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“…Kim and coworkers reported the application of breath figure method to a small photo-responsive molecule, i.e., a organogelator self-assembled into supramolecular fibrillar networks and further ordered in a hierarchically honeycomb structure [194]. Recently, a new organogelator was synthesized and large-scale ordered honeycomb patterns were also observed [195].…”

Section: Trends For New Functional Building Blocksmentioning

confidence: 99%

Breath Figures: Fabrication of Honeycomb Porous Films Induced by Marangoni Instabilities

Muñoz‐Bonilla¹,

Save²,

Billon³

et al. 2015

Polymer Surfaces in Motion

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The creation of porous polymer surfaces is a center of interest in current research. Porous surfaces possess extremely high specific surface areas, thus allowing their employment in a large variety of applications including electronics, photonics or biotechnology [1,2]. Pore size and distribution can play a major role in selective transportation or in insulation processes amongst others [3]. Those porous materials with cavities in the micrometer size range are interesting in catalysis, sensors, membrane preparation or as scaffolds for composite materials. Moreover porous materials with pore dimensions comparable to the wavelength of visible light are of interest as photonic band-gaps and optical stop-bands.Structures with micrometer or submicrometer dimensions can be created using different templating methods [4,5]. A large variety of approaches have been developed and employed to prepare microporous structured materials, including the use of templates such as ordered arrays of colloidal particles to produce inverse opal structures [6][7][8][9], from transformed polymeric sphere arrays [10,11], using emulsion droplets as templates [12], employing natural biological templates [13][14][15][16], by

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Lithographically Patterned Breath Figure of Photoresponsive Small Molecules: Dual‐Patterned Honeycomb Lines from a Combination of Bottom‐Up and Top‐Down Lithography

Cited by 78 publications

References 55 publications

Breath Figure: A Nature-Inspired Preparation Method for Ordered Porous Films

Breath Figure: A Nature-Inspired Preparation Method for Ordered Porous Films

Induction and control of supramolecular chirality by light in self-assembled helical nanostructures

Breath Figures: Fabrication of Honeycomb Porous Films Induced by Marangoni Instabilities

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