An inhibit (INH) molecular logic gate based on 1,8-naphthalimidesensitised europium luminescence

Sousa, Miguel de Abreu de Angelo; Kluciar, Marek; Abad, Sergio; Miranda, Miguel A.; Castro, Balt­azar de; Pischel, Uwe

doi:10.1039/b406415a

Cited by 58 publications

(33 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Since the fluorescence switching behaviour of these and/or close relatives are available in the literature, 5,7,27,64 it is sufficient to mention that these satisfy the classical PET system design of the 'fluorophore-spacer-receptor' model. Compounds 11-13 represent further movement along this mutational path.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Structural effects on the pH-dependent fluorescence of naphthalenic derivatives and consequences for sensing/switching

Zheng

Lynch

Rice

et al. 2012

Photochem Photobiol Sci

View full text Add to dashboard Cite

Naphthalenic compounds are a rich resource for designers of fluorescent sensing/switching/logic systems. The degree of internal charge transfer (ICT) character in the fluorophore excited states can vary from negligible to substantial. 8;4,, 1,8-naphthalimides ( 16) and 4-chloro-1,8-naphthalimides (15) are of the former type. The latter type is represented by the 4-alkylamino-1,8-naphthalimides (1). Whether ICT-based or not, these serve as the fluorophore in 'fluorophore-spacerreceptor' switching systems where PET holds sway until the receptor is bound to H + . On the other hand, 4-dialkylamino-1,8-naphthalimides (3-4) show modest H + -induced fluorescence switching unless the 4-dialkylamino group is a part of a small ring (5). Electrostatic destabilization of a non-emissive twisted internal charge transfer (ICT) excited state is the origin of this behaviour. An evolution to the nonemissive twisted ICT excited state is responsible for the weak emission of the model compound 6 (and related structures 7 and 8) across the pH range. Twisted ICT excited states are also implicated in the switch 9 and its model compound 10, which are based on the 6-dialkylamino-3H-benzimidazo[2,1-a]benz [d,e]isoquinolin-3-one fluorophore. † Dedicated to Jean-Pierre Desvergne and to Hubert Le Bozec. ‡ This article is published as part of a themed issue in honour of Jean-Pierre Desvergne on the occasion of his 65th birthday.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Some have featured as molecular logic gates. [26][27][28][29][30][31][32][33][34][35][36][37] Others have even found commercial success in blood electrolyte diagnostics. [38][39][40][41] Beside convenient synthetic routes, these compounds have very useful optical and redox properties which lead to the above applications.…”

Section: Introductionmentioning

confidence: 99%

Structural effects on the pH-dependent fluorescence of naphthalenic derivatives and consequences for sensing/switching

Zheng

Lynch

Rice

et al. 2012

Photochem Photobiol Sci

View full text Add to dashboard Cite

show abstract

“…The Ln 3+ ‐based SAM is a two‐module molecular demultiplexer (DEMUX) where the output is switched between the Δ( T ) calibration curve in regime 1 and that in regime 2 , with light at 280 nm as the input and the heat transferred to the system (on heating) (or transferred from the system, on cooling) as the control, Figure b. This is one more example of molecular logic gates using Ln 3+ ions but the first case in which a molecular thermometer can operate as a double‐input logic element in the 296−338 K range. Furthermore, this is one of the rare examples of a molecular logic device that depends on physical inputs rather than chemical ones, as previously reported, permitting a faster switching speed.…”

Section: Discussionmentioning

confidence: 99%

Implementing Thermometry on Silicon Surfaces Functionalized by Lanthanide‐Doped Self‐Assembled Polymer Monolayers

Rodrigues

Piñol

Antorrena

et al. 2015

Adv Funct Materials

View full text Add to dashboard Cite

The thermal gradients generated at submicrometer scale by the millions of transistors contained in integrated circuits are becoming the key limiting factor for device integration in micro‐ and nanoelectronics. Noncontact thermometric techniques with high‐spatial resolution are, thus, essential for noninvasive off‐chip characterization and heat management on Si surfaces. Here, the first ratiometric luminescent molecular thermometer implemented in a self‐assembled polymer monolayer functionalized Si surface is reported. The functionalization of Si surfaces with luminescent thermometers constitutes a proof‐of‐concept that foretells a wide range of applications in Si‐based micro‐ and nanostructures. The thermometric functionalization of the Si surface with Tb3+ and Eu3+ complexes leads to a thermal sensitivity up to 1.43% K−1, a cycle–recycle reliability of 98.6%, and a temperature uncertainty of less than 0.3 K. The functionalized surface presents reversible bistability that can be used as an optically active molecular demultiplexer.

show abstract

“…This work appears to have been inspired by earlier results from the same laboratory. [78] Crown ether 16, reported by Perez-Inestrosa and co-workers, [79] shows a rather unique emission band owing to charge transfer from the benzo-15-crown-5-ether to the quinoline N-oxide when the latter is protonated. H + ions are the enabling input in this case.…”

Section: Enabled Nor Logicmentioning

confidence: 95%

Molecular Logic Gate Arrays

Silva¹

2011

Chemistry An Asian Journal

165

View full text Add to dashboard Cite

Chemists are now able to emulate the ideas and instruments of mathematics and computer science with molecules. The integration of molecular logic gates into small arrays has been a growth area during the last few years. The design principles underlying a collection of these cases are examined. Some of these computing molecules are applicable in medical- and biotechnologies. Cases of blood diagnostics, 'lab-on-a-molecule' systems, and molecular computational identification of small objects are included.

show abstract

An inhibit (INH) molecular logic gate based on 1,8-naphthalimidesensitised europium luminescence

Abstract: A novel molecular logic gate with inhibit (INH) function has been developed, based on oxygen and a threshold europium concentration as input information and long-lived red europium luminescence as output signal.

Cited by 58 publications

References 16 publications

Structural effects on the pH-dependent fluorescence of naphthalenic derivatives and consequences for sensing/switching

Structural effects on the pH-dependent fluorescence of naphthalenic derivatives and consequences for sensing/switching

Implementing Thermometry on Silicon Surfaces Functionalized by Lanthanide‐Doped Self‐Assembled Polymer Monolayers

Molecular Logic Gate Arrays

Contact Info

Product

Resources

About