Cinnamate-based DNA photolithography

Feng, Li; Romulus, Joy; Li, Minfeng; Sha, Ruojie; Royer, J; Wu, Kun-Ta; Xu, Qin; Seeman, Nadrian C.; Weck, Marcus; Chaikin, P. M.

doi:10.1038/nmat3645

Cited by 49 publications

(56 citation statements)

References 37 publications

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“…The product was further purified by washing with diethyl ether to give a white solid (80% yield). 1 Synthesis of Polyamide 6. Polyamide 6 was prepared in bulk by anionic ring-opening polymerization.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

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Reversible Cross-Linking of Aliphatic Polyamides Bearing Thermo- and Photoresponsive Cinnamoyl Moieties

et al. 2014

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International audiencePhotosensitive polymers have gained strong attention in development of different polymeric systems for diverse applications. Particular attention is paid to polymers with cinnamoyl groups either in polymer backbone or in pendent position owing to their excellent photoreactivity and thermoreactivity upon UV light irradiation or heating. This work aims at synthesizing a novel photo- and thermosensitive aliphatic polyamide by anionic ring-opening copolymerization of epsilon-caprolactam and a-cinnamoylamido-epsilon-caprolactam. The photochemical reversible cross-linking of solutions and thermal cross-linking of spin-coated films made up of these new cinnamoyl-functionalized polyamides were monitored by UV-vis spectroscopy. These aliphatic polyamide copolymers were characterized by magic angle spinning solid-state NMR, and their thermal behaviors were studied by thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis

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Section: ■ Experimental Sectionmentioning

confidence: 99%

“…Conversion of the monomer was determined gravimetrically. 1 Synthesis of Polyamide 6 Bearing Pendant Cinnamoyl Groups. Polyamide 6 with pendant cinnamoyl groups was prepared by a one-step pathway by anionic ring-opening polymerization.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Reversible Cross-Linking of Aliphatic Polyamides Bearing Thermo- and Photoresponsive Cinnamoyl Moieties

et al. 2014

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“…R ecent efforts to produce reconfigurable colloidal assemblies have included holographic optical tweezers 1,2 , optically tunable electrophoretic and electrokinetic assemblies 3,4 , photoresponsive colloids 5 and DNA-directed assembly 6 . While powerful, these methods, respectively, are limited to small scales, require external electric fields, are not easily reversible, or have to date only yielded two-dimensional patterning.…”

mentioning

confidence: 99%

Spatially and temporally reconfigurable assembly of colloidal crystals

2014

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The self-assembly of colloidal crystals is important to the production of materials with functional optical, mechanical and conductive properties. Yet, self-assembly methods are limited by their slow kinetics and lack of structural control in space and time. Refinements such as templating and directed assembly partially address the problem, albeit by introducing fixed surface features such as templates or electrodes. A template-free method to reconfigure colloidal crystals simultaneously in three-dimensional space and time would better align work in colloidal assembly with materials applications. Here, we report a photo-induced assembly method that yields regions either filled with colloidal crystals or completely devoid of colloids. The origin of the effect is found to be electrophoresis of colloids generated by photochemistry at an indium tin oxide-coated substrate. Simple optical manipulations are applied to reconfigure these assembly and depletion regions. Thus, the method represents a new kind of template-free, reconfigurable three-dimensional photolithography.

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“…In particular, one can employ a well developed photolithographic techniques to pattern the template layer both topographically and chemically. For instance, it was recently demonstrated how DNA can be deposited at a specified pattern on the surface [29]. In a similar way the template layer can be essentially "printed" on a silicon wafer.…”

Section: Layer-by-layer Assemblymentioning

confidence: 99%

Layer-by-layer assembly of patchy particles as a route to nontrivial structures

Patra

Tkachenko

2017

Phys. Rev. E

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We propose a new strategy for robust high-quality self-assembly of non-trivial periodic structures out of patchy particles, and investigate it with Brownian Dynamics (BD) simulations. Its first element is the use of specific patch-patch and shell-shell interactions between the particles, that can be implemented through differential functionalization of patched and shell regions with specific DNA strands.The other key element of our approach is the use of layer-by-layer protocol that allows to avoid a formations of undesired random aggregates. As an example, we design and self-assemble "in silico" a version of a Double Diamond (DD) lattice in which four particle types are arranged into BCC crystal made of four FCC sublattices. The lattice can be further converted to Cubic Diamond (CD) by selective removal of the particles of certain types. Our results demonstrate that by combining the directionality, selectivity of interactions and the layer-by-layer protocol, a high quality robust self-assembly can be achieved. * oleksiyt@bnl.gov 2

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Cinnamate-based DNA photolithography

Cited by 49 publications

References 37 publications

Reversible Cross-Linking of Aliphatic Polyamides Bearing Thermo- and Photoresponsive Cinnamoyl Moieties

Reversible Cross-Linking of Aliphatic Polyamides Bearing Thermo- and Photoresponsive Cinnamoyl Moieties

Spatially and temporally reconfigurable assembly of colloidal crystals

Layer-by-layer assembly of patchy particles as a route to nontrivial structures

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