Photo-Responsive Self-Assembly of Plasmonic Magnetic Janus Nanoparticles

Niehues, Maximilian; Engel, Sabrina; Ravoo, Bart Jan

doi:10.1021/acs.langmuir.1c01979

Cited by 21 publications

(19 citation statements)

References 78 publications

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“…Previously, the latter was usually done by covalent attachment of molecular photoswitches to the NP surface . P4P-AuNP ensembles open up the opportunity to perform the process noncovalently, and therefore much easier, using a photoresponsive medium. − …”

Section: Resultsmentioning

confidence: 99%

Probing E/Z Isomerism Using Pillar[4]pyridinium/Gold Nanoparticle Ensembles and Their Photoresponsive Behavior

Kravets

Misztalewska-Turkowicz

Sashuk

2022

Langmuir

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Despite the fundamental importance and broad applicability of E/Z dicarboxylic acids, their discrimination remains challenging and greatly unexplored. Herein, we present a general approach for the recognition of E/Z diacids using supramolecular interactions coupled with plasmonic response. The method allows detecting both single isomers and their light-induced interconversion, which ultimately entails multiple reversible nanoparticle aggregations. Such a molecular recognitioncoupled responsive nanoscale self-assembly resembles natural mechanisms and can be a versatile means of building artificial complexity.

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Section: Resultsmentioning

confidence: 99%

Probing E/Z Isomerism Using Pillar[4]pyridinium/Gold Nanoparticle Ensembles and Their Photoresponsive Behavior

Kravets

Misztalewska-Turkowicz

Sashuk

2022

Langmuir

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“…Typical stimuli-responsive NP aggregation systems are listed in Figure 3, such as temperature (DNA, [20] diaminopyridine (DAP) and thymine (Thy), [45,46] poly(N-isopropylacrylamide) (PNIPAAm) [26] ), pH (carboxylic acid group, [47][48][49] amino cation, [50] guanidiniocarbonyl pyrrole carboxylate zwitterion (GCPZ) [51] ), light (azobenzene, [52,53] coumarin derivatives, [54] arylazopyrazolelinkers [21,33,55] ), magnetic fields (Fe 3 O 4 NPs, [24] Ag@Fe 3 O 4 NPs, [56] Fe 3 O 4 @SiO 2 NPs [7,57] ), and electric fields (positively charged Ag NPs [58] and CeO 2 NPs, [59] negatively charged ZnS@ SiO 2 NPs, [60] CeO 2 @SiO 2 NPs, [59] and α-Fe 2 O 3 @SiO 2 NPs [60] ). Besides, some systems that could respond to two or more types of external stimuli were also reported, such as temperature and light, [61] light and magnetic fields.…”

Section: Typical Stimuli-responsive Np Aggregation Systemsmentioning

confidence: 99%

From Nanoscopic to Macroscopic Materials by Stimuli‐Responsive Nanoparticle Aggregation

et al. 2023

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color changes to adapt to different environments by tuning the spacing of guanine nanocrystals; [12] salmon can find their way by using magnetite NPs on their forehead in response to Earth's magnetic field. [13,14] Inspired by nature, researchers and engineers have devoted intensive efforts to control the aggregation of "smart" NPs for constructing superstructures by regulating external stimuli. Generally, these "smart" NPs are obtained through two main approaches. One is to assemble functional molecules to NPs (nanogels, [15] proteins, [16] etc.) by covalent/noncovalent interactions. However, little attention has been paid on their aggregation caused by external stimuli. The other most popular method is to decorate functional ligands (small molecules, supermolecules, polymers, etc.) onto the surfaces of NPs (inorganic metal, metal oxide, silica, etc.). These ligands can provide a variety of interactions (e.g., hydrophobic interactions, hydrogen bonding, electrostatic interactions, and host-guest interactions) to regulate NP aggregation under different external stimuli. The combination of smart NPs and external stimuli provides an amazing and promising route to create functional materials or devices with highly tunable unique properties.For many decades, stimuli-responsive NP aggregation at micro or macroscale has aroused great interest and broad explorations for its potential applications in biomedical engineering, [17] robot technology, [18] and energy conversion. [19] Since Mirkin et al. reported a DNA-based method to assemble NPs into macroscopic aggregates by thermal variation in 1996, [20] many intelligent multiscale assembly of smart NPs from nano/ microscopic aggregates to macroscopic materials have been spatio-temporally realized in a remote way by various external stimuli such as temperature, pH, light, electric, and magnetic fields. Several typical NP superstructures have been created at nano/microscale, such as disordered aggregates, [21] ordered superlattices, [22] structural droplets, [23] and colloidosomes. [24] To obtain large macroscopic materials is still a great challenge, notwithstanding a few successful examples, centimeterscale-ordered bulk solids [25] and switchable liquid-solid bulk materials. [26] Some excellent reviews have summarized the NP assembly methods and strategies, such as evaporation-induced NP assembly, [27,28] polymer-guided NP assembly, [29,30] biomoleculemediated NP assembly, [31,32] etc. In this review, we focus on the recent advances of stimuli-responsive NP aggregation systems that have been developed to construct some typical functional Stimuli-responsive nanoparticle (NP) aggregation plays an increasingly important role in regulating NP assembly into microscopic superstructures, macroscopic 2D, and 3D functional materials. Diverse external stimuli are widely used to adjust the aggregation of responsive NPs, such as light, temperature, pH, electric, and magnetic fields. Many unique structures based on responsive NPs are constructed including disordered aggregates, order...

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“…Noticeably, changes in the molecular structure, alters the physical property such as fluorescence, electrical conductivity, refractive index, polarizability, and magnetism etc [41] . In recent years, these type of appealing molecules has gained a prominent attention of the scientific community globally because of their unique physiochemical signatures and diverse potential applications for instance, photo‐responsive self‐assemblies, [42] information manipulation, [43] medicinal chemistry, [44] logic gates, [45] molecular switches, [46] and fluorescent chemosensors [47] etc. Remarkably, in recent past, a plethora of photochromic systems have successfully been designed, synthesized and studied worldwide by numerous research groups.…”

Section: Synthesis and Applications Of Various Types Of Ion‐pair Rece...mentioning

confidence: 99%

Recent Advancements in Ion‐Pair Receptors

Wagay

Khan

Ali

2022

Chemistry An Asian Journal

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Over the past two decades, non‐covalent chemistry has introduced various promising artificial receptors and revolutionized the host‐guest chemistry. These versatile receptors have particularly been entertained in sensing and recognizing of diverse neutral molecules and/or ionic entities (e. g. anions, cations and ion‐pair) of particular interest. Notably, supramolecular chemistry had given birth to a plethora of important molecules, explored in the chemical, biological, environmental, and pharmacological world to resolve the critical issues related to the human health while keeping environmental concerns in mind. Amongst the various types of supramolecular monotopic receptors (anions, cations, and neutral molecules), heteroditopic receptors (ion‐pair receptors) consisting of distinct binding sites in one system for both cation and anion, have gained much interest from the scientific community in recent past because of their unique binding abilities. Interestingly, these promising artificial receptors have shown potential applications in sensing, recognition, transport and extraction processes besides their uses in salt/waste purification. Bearing the importance of these systems in mind, we intended to report the recent developments in ion‐pair chemistry. Herein, we divided the whole document into three main sections; first one describes the introduction and history of the ion‐pairs receptors. The second portion highlights the synthesis and applications of ion‐pair receptors in sensing, recognition, molecular machines, photoswitching behaviour, extraction and transport properties, whereas the last part of this manuscript provides concluding remarks as well as future prospects of ion‐pair receptors. We hope that this manuscript will be helpful to stimulating researchers around the globe to find out the hidden opportunities in this and related areas.

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Photo-Responsive Self-Assembly of Plasmonic Magnetic Janus Nanoparticles

Cited by 21 publications

References 78 publications

Probing E/Z Isomerism Using Pillar[4]pyridinium/Gold Nanoparticle Ensembles and Their Photoresponsive Behavior

Probing E/Z Isomerism Using Pillar[4]pyridinium/Gold Nanoparticle Ensembles and Their Photoresponsive Behavior

From Nanoscopic to Macroscopic Materials by Stimuli‐Responsive Nanoparticle Aggregation

Recent Advancements in Ion‐Pair Receptors

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