“Plug and Play” Logic Gates Based on Fluorescence Switching Regulated by Self-Assembly of Nucleotide and Lanthanide Ions

2014 ◽  
Vol 6 (12) ◽  
pp. 9557-9562 ◽  
Author(s):  
Fang Pu ◽  
Jinsong Ren ◽  
Xiaogang Qu
Keyword(s):  
Self Assembly ◽  
Logic Gates ◽  
Lanthanide Ions ◽  
Plug And Play ◽  
Fluorescence Switching

Design and self-assembly of new [2 × 2] grids constructed by lanthanide ions and a Schiff base

2020 ◽  
Vol 119 ◽  
pp. 108067 ◽  
Author(s):  
Gabriela Mendoza-Sarmiento ◽  
Fernando Igoa ◽  
Leopoldo Suescun ◽  
Julia Torres ◽  
Carlos Kremer
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
Lanthanide Ions

Hybrid Core-Shell Nanoparticles by “Plug and Play” Self-Assembly

2018 ◽  
Vol 24 (67) ◽  
pp. 17672-17676 ◽  
Author(s):  
Benjamin Pacaud ◽  
Loïc Leclercq ◽  
Jean-François Dechézelles ◽  
Véronique Nardello-Rataj
Keyword(s):  
Self Assembly ◽  
Core Shell ◽  
Plug And Play ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Dual-mode fluorescence switching induced by self-assembly of well-defined poly(arylene ether sulfone)s containing pyrene and amide moieties

2012 ◽  
Vol 48 (85) ◽  
pp. 10556 ◽  
Author(s):  
Jeyoung Park ◽  
Jisung Kim ◽  
Myungeun Seo ◽  
Jinhee Lee ◽  
Sang Youl Kim
Keyword(s):  
Self Assembly ◽  
Dual Mode ◽  
Arylene Ether ◽  
Fluorescence Switching

scholarly journals pH and light-controlled self-assembly of bistable [c2] daisy chain rotaxanes

2015 ◽  
Vol 51 (20) ◽  
pp. 4212-4215 ◽  
Author(s):  
Adrian Wolf ◽  
Emilie Moulin ◽  
Juan-José Cid ◽  
Antoine Goujon ◽  
Guangyan Du ◽  
...  
Keyword(s):  
Self Assembly ◽  
Logic Gates

Triarylamine – [c2] daisy chain rotaxane conjugates behave as logic-gates controlled by pH and light modulations to self-assemble in supramolecular fibers.

Radii-dependent self-assembly polynuclear lanthanide complexes as catalysts for CO2 transformation into cyclic carbonates

2021 ◽  
Author(s):  
Changjuan Chen ◽  
Aijiang Zhang
Keyword(s):  
Self Assembly ◽  
Lanthanide Complexes ◽  
Lanthanide Ions ◽  
Cyclic Carbonates ◽  
Co2 Transformation

A multidentate acylhydrazone ligand constructed dinuclear and pentanuclear complexes with the lighter lanthanide ions (La3+, Pr3+ and Eu3+) and the heavier lanthanide ions (Tb3+ and Er3+), respectively, which indicates this...

scholarly journals Coordinative-to-covalent transformation, isomerization dynamics, and logic gate application of dithienylethene based photochromic cages

2020 ◽  
Vol 11 (33) ◽  
pp. 8885-8894
Author(s):  
Jian-Hua Zhang ◽  
Hai-Ping Wang ◽  
Lu-Yin Zhang ◽  
Shi-Chao Wei ◽  
Zhang-Wen Wei ◽  
...  
Keyword(s):  
Self Assembly ◽  
Logic Gate ◽  
Logic Gates ◽  
Color Tuning

Metal-templated component self-assembly and then demetalation affords photochromic covalent organic cages applicable for upconversion PL-color tuning for logic gates.

Quantifying the formation of chiral luminescent lanthanide assemblies in an aqueous medium through chiroptical spectroscopy and generation of luminescent hydrogels

2015 ◽  
Vol 185 ◽  
pp. 413-431 ◽  
Author(s):  
Samuel J. Bradberry ◽  
Aramballi Jayant Savyasachi ◽  
Robert D. Peacock ◽  
Thorfinnur Gunnlaugsson
Keyword(s):  
Excited State ◽  
Self Assembly ◽  
Linear Regression Analysis ◽  
Fluorescence Emission ◽  
Binding Constants ◽  
Cd Spectroscopy ◽  
Water Soluble ◽  
Lanthanide Ions ◽  
Quantum Yields ◽  
The Eu

Herein we present the synthesis and the photophysical evaluation of water-soluble chiral ligands (2·(R,R) and 2·(S,S)) and their application in the formation of lanthanide directed self-assembled structures. These pyridine-2,6-dicarboxylic amide based ligands, possessing two naphthalene moieties as sensitising antennae, that can be used to populate the excited state of lanthanide ions, were structurally modified using 3-propanesultone and caesium carbonate, allowing for the incorporation of a water-solubilising sulfonate motif. We show, using microwave synthesis, that Eu(iii) forms chiral complexes in 1 : 3 (M : L) stoichiometries (Eu·[2·(R,R)]3 and Eu·[2·(S,S)]3) with these ligands, and that the red Eu(iii)-centred emission arising from these complexes has quantum yields (Φtot) of 12% in water. Both circular dichroism (CD) and circular polarised luminescence (CPL) analysis show that the complexes are chiral; giving rise to characteristic CD and CPL signatures for both the Λ and the Δ complexes, which both possess characteristic luminescence dissymmetry factors (glum), describing the structure in solution. The self-assembly process was also monitored in situ by observing the changes in the ligand absorption and fluorescence emission, as well as in the Eu(iii) luminescence. The change, fitted using non-linear regression analysis, demonstrated high binding affinity for Eu(iii) which in part can be assigned to being driven by additional hydrophobic effects. Moreover, using CD spectroscopy, the changes in the chiroptical properties of both (2·(R,R) and 2·(S,S)) were monitored in real time. Fitting the changes in the CD spectra allowed for the step-wise binding constants to be determined for these assemblies; these matched well with those determined from both the ground and the excited state changes. Both the ligands and the Eu(iii) complexes were then used in the formation of hydrogels; the Eu(iii)-metallogels were luminescent to the naked-eye.

scholarly journals Cryptographic hashing using chaotic hydrodynamics

2018 ◽  
Vol 115 (19) ◽  
pp. 4869-4874 ◽  
Author(s):  
William Gilpin
Keyword(s):  
Turbulent Flows ◽  
Self Assembly ◽  
Chaotic Attractor ◽  
Large Scale ◽  
Chaotic Maps ◽  
Logic Gates ◽  
Digital Information ◽  
Work Systems ◽  
Incomplete Mixing ◽  
Short Time

Fluids may store and manipulate information, enabling complex applications ranging from digital logic gates to algorithmic self-assembly. While controllable hydrodynamic chaos has previously been observed in viscous fluids and harnessed for efficient mixing, its application to the manipulation of digital information has been sparsely investigated. We show that chaotic stirring of a viscous fluid naturally produces a characteristic signature of the stirring process in the arrangement of particles in the fluid, and that this signature directly satisfies the requirements for a cryptographic hash function. This includes strong divergence between similar stirring protocols’ hashes and avoidance of collisions (identical hashes from distinct stirs), which are facilitated by noninvertibility and a broad chaotic attractor that samples many points in the fluid domain. The hashing ability of the chaotic fluidic map implicates several unexpected mechanisms, including incomplete mixing at short time scales that produces a hyperuniform hash distribution. We investigate the dynamics of hashing using interparticle winding statistics, and find that hashing starts with large-scale winding of kinetically disjoint regions of the chaotic attractor, which gradually gives way to smaller scale braiding of single-particle trajectories. In addition to providing a physically motivated approach to implementing and analyzing deterministic chaotic maps for cryptographic applications, we anticipate that our approach has applications in microfluidic proof-of-work systems and characterizing large-scale turbulent flows from sparse tracer data.

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