Resettable, Multi‐Readout Logic Gates Based on Controllably Reversible Aggregation of Gold Nanoparticles

Liu, Dingbin; Chen, Wenwen; Sun, Kang; Deng, Ke; Zhang, Wei; Wang, Zhuo; Jiang, Xingyu

doi:10.1002/anie.201008198

Cited by 234 publications

(169 citation statements)

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“…43 This type of assays has developed into more complex assays, such as colorimetric logic gates. 216,217 The strength of colorimetric assays relies on the sensitivity of surface plasmons when there is coupling between plasmonic colloids. For instance, dimers of Au NPs (20 nm) with interparticle distances of <10 nm will have a significant impact on the plasmon resonances, both in the cross-section and wavelength.…”

Section: Figmentioning

confidence: 99%

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Pino¹

2014

J. Biomed. Opt

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Abstract. Continuous advances in the field of bionanotechnology, particularly in the areas of synthesis and functionalization of colloidal inorganic nanoparticles with novel physicochemical properties, allow the development of innovative and/or enhanced approaches for medical solutions. Many of the present and future applications of bionanotechnology rely on the ability of nanoparticles to efficiently interact with electromagnetic (EM) fields and subsequently to produce a response via scattering or absorption of the interacting field. The crosssections of nanoparticles are typically orders of magnitude larger than organic molecules, which provide the means for manipulating EM fields and, thereby, enable applications in therapy (e.g., photothermal therapy, hyperthermia, drug release, etc.), sensing (e.g., surface plasmon resonance, surface-enhanced Raman, energy transfer, etc.), and imaging (e.g., magnetic resonance, optoacoustic, photothermal, etc.). Herein, an overview of the most relevant parameters and promising applications of EM-active nanoparticles for applications in life science are discussed with a view toward tailoring the interaction of nanoparticles with EM fields. © The Authors.Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Figmentioning

confidence: 99%

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Pino¹

2014

J. Biomed. Opt

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“…1,2 Among a variety of polymeric materials that can be used for preparing nanoparticles, poly(lactic-co-glycolic acid) (PLGA) has attracted particular attention due to its optimal properties such as biocompatibility and biodegradability. 3 PLGA nanoparticles have been successfully employed to deliver drugs and bioactive agents in vivo.…”

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confidence: 99%

A microfluidic origami chip for synthesis of functionalized polymeric nanoparticles

Sun

Xianyu

et al. 2013

Nanoscale

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“…Photocontrolled Au spyropyran nanoparticles were used for the development of resettable multi-readout logic gates [127].…”

Section: Scheme 85mentioning

confidence: 99%

Nanophotochromism

Barachevsky¹

2015

Organic Photonics and Photovoltaics

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Abstract:The review presents the state-of-the-art analysis of investigations in the field of a new line of research of photochromism -nanophotochromism. The design, properties, and possible applications of photochromic nanoparticles prepared by different methods with the use of photochromic substances (aggregates, host-guest, and polymer systems, solid nanoparticles) as well as core-shell photochromic nanostructures based on polymers, silica, quantum dots, doped upconversion nanocrystals, and Ag, Au, etc. nanoparticles have been reviewed. Keywords: photochromism; photochromic nanoparticles; core-shell photochromic nanoparticles design; photoswitching; aggregates; polymer systems, host-guest systems IntroductionPhotochromism is a very important phenomenon for different applications in photonics. The applications are based on reversible phototransformations of photochromic compounds between two states and changes of their properties that accompany these transformations At present, systems and materials containing photochromic nanopatricles have become highly significant. Among these are nanodimensional particles of photochromic substances, including aggregates, and coreshell systems. As a core, inorganic nanoparticles of gold, silver, metal oxides, quantum dots (QD), and also polymeric nanoparticles are used. The shell consists of photochromic molecules or their aggregates connected to a core surface either chemically or physically. Photochromic nanoparticles with photocontrolled fluorescence arouse a special interest because the fluorescence technique is becoming a leading strategy in biological diagnosis, imaging, and detection applications. This paper is a state-of-the-art review which presents results of studying photochromic nanoparticles including author's own data. The results of earlier research are also surveyed in some other reviews [1][2][3][4][5][6][7][8][9][10][11][12][13]. Photochromic nanoparticles:properties and applications Nanoparticles based on photochromic substances AggregatesThe most known photochromic nanoparticles are aggregates of photochromic organic compounds [14]. These compounds experience reversible photoinduced transformations between two states, Sch. 1A and Sch. 1B. Scheme 1The photoinduced colored merocyanine form B absorbing visible irradiation is formed from a colorless form A as a result of photodissociation of the -C-O-bond of the pyran heterocycle under UV radiation, and this is followed by spontaneous isomerization of the cis-form to the trans one. The colored form B can be converted back to the initial colorless form A upon absorption of visible light or spontaneously during the dark relaxation, which is accelerated by heating.The J-aggregates of nitro-substituted indoline spiropyrans Sch. 2 with long alkyl substituents are of special interest [15].The narrow absorption bands of J-aggregates of these photochromic compounds (Fig. 1) made it possible prepare a specimen of the multilayered optical disk providing freUnauthenticated Download

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Resettable, Multi‐Readout Logic Gates Based on Controllably Reversible Aggregation of Gold Nanoparticles

Cited by 234 publications

References 60 publications

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

Tailoring the interplay between electromagnetic fields and nanomaterials toward applications in life sciences: a review

A microfluidic origami chip for synthesis of functionalized polymeric nanoparticles

Nanophotochromism

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