Template‐Assisted Self‐Assembly: Alignment, Placement, and Arrangement of Two‐Dimensional Mesostructured DNA–Silica Platelets

Liu, Ben; Yao, Yuan; Che, Shunai

doi:10.1002/ange.201307897

Angewandte Chemie

2013

DOI: 10.1002/ange.201307897

|View full text |Cite

Template‐Assisted Self‐Assembly: Alignment, Placement, and Arrangement of Two‐Dimensional Mesostructured DNA–Silica Platelets

Ben Liu

Yuan Yao

Shunai Che

Abstract: Highly ordered hierarchical biomolecule-inorganic structures, such as bone, dentine, eggshell, and marine mollusc shells, are ubiquitous in nature. [1] The artificial organization of nature-inspired, biomolecule-templated hierarchical inorganic materials is a key challenge in enabling many nanotechnological applications.[2] "Bottom-up" self-assembly is a widely applied strategy for synthesizing and fabricating ordered hierarchical/multilevel spatial structures or morphologies from components ranging from nanom… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2014

2017

Publication Types

Select...

Article6

Relationship

Self Cite1

Independent5

Authors

Journals

Cited by 7 publications

(1 citation statement)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The strategy that we used to synthesise chiral silica films relied on controlling the growth of helical DNA–silica impeller 21 22 on the substrate surface by facilitating the interaction between the DNA and the substrate and their subsequent self-assembly with a silica source 23 . A Si (100) wafer was used as the supporting substrate (see Supplementary Figure S1 and Supplementary Figure S2 a 1 , b 1 ).…”

mentioning

confidence: 99%

Growth of Optically Active Chiral Inorganic Films through DNA Self-Assembly and Silica Mineralisation

Liu

Han

Duan

et al. 2014

Sci Rep

Self Cite

View full text Add to dashboard Cite

The circularly polarized reflection of nature is due to their distinct azimuthally twisted or helical character in the nanostructure of the surface films. Although many chiral inorganic powders have been successfully synthesised, the artificial synthesis of chiral inorganic films is rare. Herein, we reported a facile synthetic route for the growth of monolayered chiral film on the quaternary ammonium-modified silicon substrate. The films grew on the substrate surface because of the strong electrostatic interaction between positively charged quaternary ammonium groups and negatively charged phosphate groups of DNA, with subsequent growth to right-handed, vertically aligned, impeller-like helical architectures with left-handed two-dimensional square p4mm-structured DNA chiral packing. The DNA-silica composite films exhibited strong optical activity at 295 nm and in the range of 400-800 nm, corresponding to DNA chiral packing (absorption) and to the helical blade in the impeller (scattering), respectively. Upon removal of DNA templates, the pure inorganic impeller-like helical morphology was maintained; consequently, the scattering-based optical response was blue-shifted approximately 200 nm as a result of a decrease in the effective average refractive index. The hierarchical structures were reflected from the surfaces by cross-polarised light, which confirmed that the films were strongly birefringent, with long-range anisotropy.C hirality is a basic attribute of nature and can be found in objects ranging from the microscopic level (e.g., amino acids, DNA and proteins) to the macroscopic level (e.g., sea snails, trees and even the universe) 1-3 . The visual appearance of many animals is well known to be determined by structural processes and not by pigments 4,5 . The circularly polarised reflection from scarab beetles (i.e., Plusiotis gloriosa) is due to their distinct azimuthally twisted or helical character in the nanostructure of the films 6 . Chirality is ubiquitous in organic materials with helical geometries. Therefore, many organic chiral films have been extensively investigated for use in electronic and optoelectronic applications 7-9 . Optically active chiral inorganic materials have also been extensively investigated for use in catalysis, separation, electronic and optoelectronic applications because of their inherent electronic, optical and mechanical properties and their thermal stability [10][11][12][13][14] . One of the most promising states of these materials is the film form, which is desirable for application in electronic and optoelectronic devices for mimicking functional biosystems. However, only three methods have been reported for the successful artificial synthesis of chiral inorganic films: MgF 2 films have been prepared using engineered glancing-angle deposition (GLAD) 15 ; a sculptured chiral thin film has been formed using the serial bideposition (SBD) technique 16 ; and freestanding helical mesoporous silica films 17 and derived materials [18][19][20] have been prepared through the self-...

show abstract

mentioning

confidence: 99%

Growth of Optically Active Chiral Inorganic Films through DNA Self-Assembly and Silica Mineralisation

Liu

Han

Duan

et al. 2014

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

Funktionsmaterialien mit Cellulose‐basierten Flüssigkristall‐Templaten

et al. 2014

View full text Add to dashboard Cite

Cellulose‐Nanokristalle (cellulose nanocrystals, CNCs) sind seit über 50 Jahren bekannt, gewinnen aber erst heute große Aufmerksamkeit aufgrund ihrer Eigenschaften wie hoher spezifischer Festigkeit, hohen Elastizitätsmoduls, großer Oberfläche und faszinierender optischer Eigenschaften. Erst kürzlich wurde ihr Potenzial als supramolekulare Template erkannt, bei denen ihr Selbstorganisationsverhalten in wässrigen Dispersionen in Gegenwart geeigneter Vorstufen genutzt wird. Die Kombination von Mesoporosität, photonischen Eigenschaften und chiral‐nematischer Ordnung der Funktionsmaterialien, die als freistehende Filme verfügbar sind, führte zu zahlreichen vielversprechenden Entdeckungen. Unser Aufsatz fasst die Verwendung von Cellulosederivaten, besonders von CNCs, als neuen Templaten zusammen und gibt eine Übersicht über die aktuellen Entwicklungen im Kontext neuer Funktionsmaterialien.

show abstract

Oriented Chiral DNA–Silica Film Guided by a Natural Mica Substrate

et al. 2016

View full text Add to dashboard Cite

The formation of highly ordered chiral organic/ inorganic films with high density and long-range orientation is important in constructing chiral devices,s uch as broadband polarization devices,liquid-crystal displays,ornegative-reflection materials.Afeasible strategy is presented to fabricate three-dimensional mesostructured chiral DNA-silica assemblies into large-scale oriented arrangements.T he highly ordered film was aligned by am ica crystal substrate with the bridging effect of suitable divalent metal ions,followed by the growth of the DNA-silica composite by bottom-up assembly with a"quartet templating" method. This simple and effective route would perform well in the alignment and arrangement of highly charged biomolecules,s uch as polypeptides,p roteins, viruses,and their inorganic assemblies,and furthermore could allowthe fabrication of chiral optical materials with long-range ordering.The precise engineering of nanostructures over am acroscopic surface into highly ordered three-dimensional (3D) arrays is as ubstantial challenge in many applications in nanotechnology.[1] Among them, chiral nanostructures are of great interest.[2] Thes ignificant aspects of chiral devices, especially chiral films such as broadband polarizers, [3] chiral liquid crystals, [4] and chiral filters, [5] often arise from their long-range arrangement. Thetemplate-assisted self-assembly (TASA) method to guide suitable chiral molecules to assemble into 3D large arrays is an effective strategy to fabricate long-range ordered chiral films.The combination of top-down substrate design and bottom-up molecular selfassembly would enable us to integrate individual nanostructures into arranged functional devices. [6] As one of the most attractive biomolecular building blocks,D NA molecules provide high stereoregularity for building artificial nanostructures and possess inherent chirality to assemble into delicate chiral materials. [1b, 7] Using elaborate intermolecular interactions,D NA can position materials with precision into periodic or aperiodic structures.[8] Thus,controlling the orientation and arrangement of DNAassembles on supporting substrates through TASA may be the fine approach for the fabrication of highly ordered films with chiral structures.Previously,w es uccessfully oriented and selectively arranged achiral 2D mesostructured DNA-silica platelets on the surface of al ithographic silicon substrate through TASA.[9] Furthermore,chiral DNA-silica impellers have also been fabricated on silica wafers,s howing both absorptionand scattering-based optical activity (OA).[10] Unfortunately, the randomly distributed impellers suffer from weak OA, raising the requirements in terms of controlling the orientation of chiral DNA-silica assemblies.M eanwhile,t he lithographic process is energy-intensive,a nd the resolution is limited to 7nmlength scales.[11] It is necessary to choose anew substrate to align the structure.Despite commonly used substrates having organized lithographic patterns,f lat crystalline substrates (highly ...

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Template‐Assisted Self‐Assembly: Alignment, Placement, and Arrangement of Two‐Dimensional Mesostructured DNA–Silica Platelets

Cited by 7 publications

References 49 publications

Growth of Optically Active Chiral Inorganic Films through DNA Self-Assembly and Silica Mineralisation

Growth of Optically Active Chiral Inorganic Films through DNA Self-Assembly and Silica Mineralisation

Funktionsmaterialien mit Cellulose‐basierten Flüssigkristall‐Templaten

Oriented Chiral DNA–Silica Film Guided by a Natural Mica Substrate

Contact Info

Product

Resources

About