Simultaneously Multiply-Configurable or Superposed Molecular Logic Systems Composed of ICT (Internal Charge Transfer) Chromophores and Fluorophores Integrated with One- or Two-Ion Receptors

Silva, A. Prasanna de; McClenaghan, Nathan D.

doi:10.1002/1521-3765(20021104)8:21<4935::aid-chem4935>3.0.co;2-2

Cited by 224 publications

(164 citation statements)

References 27 publications

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“…Such a high functional integration is possible thanks to an important feature of molecular logic gates and circuits, namely, reconfigurability [12,14,24]. This property refers to the possibility of defining different logic operations for the same gate.…”

Section: Basic Conceptsmentioning

confidence: 99%

“…Because multiple wavelengths can be observed at the same time, such gates perform simultaneously different logic functions on a given set of inputs, a property that has been referred to as superposition or multiplicity of logic types [12,14,24]. Because logic superposition is a consequence of the multichannel nature of light, it does not occur with electronic systems.…”

Section: Basic Conceptsmentioning

confidence: 99%

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Binary Logic with Synthetic Molecular and Supramolecular Species

Semeraro

Baroncini

2012

Molecular and Supramolecular Information Processing

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Section: Basic Conceptsmentioning

confidence: 99%

Section: Basic Conceptsmentioning

confidence: 99%

Binary Logic with Synthetic Molecular and Supramolecular Species

Semeraro

Baroncini

2012

Molecular and Supramolecular Information Processing

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“…These conjugated pi-systems [32,33] are necessary components for more complex logic systems such as half-subtractor [34,35] and half-adder [36,37] mimics. ICT systems are purposely designed such that one end of the molecule is electron rich while the other end is electron poor.…”

Section: Engineering Luminescent Molecules 81mentioning

confidence: 99%

Engineering Luminescent Molecules with Sensing and Logic Capabilities

Magri

2012

Molecular and Supramolecular Information Processing

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The design of multifunctional molecular devices is an expanding frontier area of research encompassing the fields of materials science, nanotechnology, and supramolecular chemistry [1][2][3]. A current theme is to design molecules with individual components that operate independently of one another, yet work cooperatively as a team to produce devices with greater function than the sum of their individual parts [4][5][6]. Molecules with the capacity to perform a variety of stimuli-responsive functions based on built-in algorithms can, therefore, independently process information, and then of their own accord, provide a composite result autonomously [7][8][9][10][11][12][13][14][15][16][17]. Molecules with the ability to perform Boolean algebraic operations are the focus of this chapter.Intelligent molecular systems designed to be activated by some external stimulus by changing a physical or chemical state can be viewed as switches, and therefore, may be useful for the transfer, processing, and storage of information. Dozens of research laboratories around the world have embraced the design, synthesis, characterization, and testing of chemical systems that mimic the basic operations of electrical circuitry [18]. The general engineering approach to designing information-processing molecules is based on a modular strategy with specific units of structural and functional importance [19]. Earlier reviews described in detail the various strategies for designing luminescence sensing devices: these ideas range in scope from ways of covalently arranging modular units to the exploitation of self-assembly [20][21][22].This multidisciplinary research field demands a number of skill sets from a background in organic synthesis for the strategic design and molecular engineering of novel chemical systems, to analytical chemistry for the quantification of analyte concentrations and the determination of binding constants, as well as other thermodynamic and kinetic parameters, and Boolean algebra and binary computation for expressing observed chemical phenomena (analog information) as easy-to-interpret digital information. Then, there are also the skills and tools required for anchoring these molecular devices at interfaces and surfaces.

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“…Fluorescent probes for measuring biologically important ions such as Ca 2C , Mg 2C , and Zn 2C have been developed in many research groups [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. The fluorescence intensity of these metal probes changes mainly based on the differences of fluorescent properties between free form of the probe molecule and its metal complex.…”

Section: Introductionmentioning

confidence: 99%

Photochemical and complexation studies for new fluorescent and colored chelator

Ohshima

Momotake

Arai

2005

Science and Technology of Advanced Materials

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The photo-induced intramolecular proton (or hydrogen atom) transfer (ESIPT) and metal binding properties of Oxa-ester were studied in methanol solution. The dissociation constant between Oxa-ester and the metal ion was highly dependent with the metal ion and was determined by Hill plots or iterative least squares fitting to be 447 mM, 14.9 mM, and 290 nM for Ca 2C , Zn 2C , and Cu 2C , respectively, in methanol. The fluorescence intensity of Oxa-ester greatly increased with increasing concentration of Zn 2C , while the fluorescence intensity decreased with the addition of Ca 2C and Cu 2C . Transient absorption spectroscopy revealed that Oxa-ester underwent ESIPT to give Z-NH isomer in the excited state in benzene, while Oxa did not undergo ESIPT probably due to the hydrogen bonding with solvent water. q

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Simultaneously Multiply-Configurable or Superposed Molecular Logic Systems Composed of ICT (Internal Charge Transfer) Chromophores and Fluorophores Integrated with One- or Two-Ion Receptors

Cited by 224 publications

References 27 publications

Binary Logic with Synthetic Molecular and Supramolecular Species

Binary Logic with Synthetic Molecular and Supramolecular Species

Engineering Luminescent Molecules with Sensing and Logic Capabilities

Photochemical and complexation studies for new fluorescent and colored chelator

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