NDLI: CB[8]-based rotaxane as a useful platform for sensitive detection and discrimination of explosives

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Simple DNA-based logic gates responding to biomolecules and metal ions

Realizing the promise of chemical glycobiology

N-Heterocyclic carbene (NHC)–copper-catalysed transformations of carbon dioxide

Ti₂S@D_3h(24109)-C₇₈: a sulfide cluster metallofullerene containing only transition metals inside the cage

Spin-coated carbon

One-shot indole-to-carbazole π-extension by a Pd–Cu–Ag trimetallic system

Rh(iii)-catalyzed C–H activation/cycloaddition of benzamides and methylenecyclopropanes: divergence in ring formation

Gold(i)-catalyzed enantioselective bromocyclization reactions of allenes

Floating conductive catalytic nano-rafts at soft interfaces for hydrogen evolution

Glycomimetic affinity-enrichment proteomics identifies partners for a clinically-utilized iminosugar

DNA strands with alternating incorporations of LNA and 2′-O-(pyren-1-yl)methyluridine: SNP-discriminating RNA detection probes

A novel approach to the site-selective dual labelling of a protein via chemoselective cysteine modification

Amphiphilic chlorins and bacteriochlorins in micellar environments. Molecular design, de novo synthesis, and photophysical properties

Copper-mediated trifluoromethylation of propiolic acids: facile synthesis of α-trifluoromethyl ketones

Probing chemistry and kinetics of reactions in heterogeneous catalysts

Capillarity-constructed reversible hot spots for molecular trapping inside silver nanorod arrays light up ultrahigh SERS enhancement

Selective electrocatalytic reduction of carbon dioxide to formate by a water-soluble iridium pincer catalyst

Spatially controlled surface immobilization of nucleophiles via trapping of photo-generated thioaldehydes

Pd-catalyzed oxidative cross-coupling between two electron rich heteroarenes

Aptamer-functionalized silver nanoclusters-mediated cell type-specific siRNA delivery and tracking

Charge transfer through cross-hyperconjugated versus cross-π-conjugated bridges: an intervalence charge transfer study

Optimising in situ click chemistry: the screening and identification of biotin protein ligase inhibitors

Palladium-catalyzed heteroallylation of unactivated alkenes – synthesis of citalopram

A combined experimental and quantum chemical study of CO₂ adsorption in the metal–organic framework CPO-27 with different metals

Vanadium–iron complexes featuring metal–metal multiple bonds

3D optical imaging of multiple SERS nanotags in cells

Hierarchical bicontinuous porosity in metal–organic frameworks templated from functional block co-oligomer micelles

An enantioselective artificial metallo-hydratase

CB[8]-based rotaxane as a useful platform for sensitive detection and discrimination of explosives

Analysis of supramolecular complex energetics in artificial replicators

Selective recognition and extraction of the uranyl ion from aqueous solutions with a recyclable chelating resin

Electron transfer/ion transfer mode of scanning electrochemical microscopy (SECM): a new tool for imaging and kinetic studies

First supramolecular sensors for phosphonate anions

Oxygen activation by homoprotocatechuate 2,3-dioxygenase: a QM/MM study reveals the key intermediates in the activation cycle

Exploring the limits of redox non-innocence: pseudo square planar [{κ⁴-Me₂C(CH₂NCHpy)₂}Ni]ⁿ (n = 2+, 1+, 0, −1, −2) favor Ni(ii)

Solution processable polydiacetylenes (PDAs) through acyclic enediyne metathesis polymerization

Surface charge generation in nanogels for activated cellular uptake at tumor-relevant pH

Templation-induced re-equilibration in polymer-scaffolded dynamic combinatorial libraries leads to enhancements in binding affinities

Gold nanoparticles stabilized by an amphiphilic pillar[5]arene: preparation, self-assembly into composite microtubes in water and application in green catalysis

Stable cycling of lithium sulfide cathodes through strong affinity with a bifunctional binder

A Cu(i) metal–organic framework with 4-fold helical channels for sensing anions

(POP)Rh pincer hydride complexes: unusual reactivity and selectivity in oxidative addition and olefin insertion reactions

A “sugar-deficient” G-quadruplex: incorporation of aTNA in G4 structures

Discovery of energy transfer nanostructures using gelation-driven dynamic combinatorial libraries

Benzofuran synthesis via copper-mediated oxidative annulation of phenols and unactivated internal alkynes

1,2,3-Triazoles as versatile directing group for selective sp² and sp³ C–H activation: cyclization vs substitution

Exploring the solution behavior of f-element coordination compounds: a case study on some trivalent rare earth and plutonium complexes

Fluorescent pH sensor constructed from a heteroatom-containing luminogen with tunable AIE and ICT characteristics

Delivery and release of curcumin by a hypoxia-activated cobalt chaperone: a XANES and FLIM study

Functional, metal-based crosslinkers for α-helix induction in short peptides

Specific recognition of DNA depurination by a luminescent terbium(iii) complex

Aromatic C–H coupling with hindered arylboronic acids by Pd/Fe dual catalysts

Can bis(imino)pyridine iron, (PDI)FeL¹L², complexes catalyze C–H bond functionalization?

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CB[8]-based rotaxane as a useful platform for sensitive detection and discrimination of explosives

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhu, Wei Jiang, Yin Cui, Jiecheng Wang, Chen Li, Weina Yang, Haowei Li, Guangtao
Copyright Year	2013
Abstract	Based on a naphthalene-threaded cucurbit[8]uril (CB[8]) rotaxane structure on a solid substrate, a new strategy for rapid, fully reversible, and highly sensitive detection of a broad class of explosives was developed by using one receptor. Due to the unique confinement effect and size exclusion of the CB[8] cavity, it is found that the intercalation of an explosive compound in the constructed rotaxane can significantly influence the photophysical property of the naphthalene core in the confined nanocavity of CB[8]. Dependent on the electronic structures and the sizes of explosive compounds, the fluorescence of the naphthalene core would be quenched or enhanced to different extents, leading to the direct detection and discrimination of distinctively different groups of trace explosives in the vapor phase, especially including the challenging aliphatic nitro-organics (RDX, HMX and PETN). Control experiments were performed to show the different sensing behaviors between the common organic vapors and nitrate-based explosives, which made it easy to realize the discrimination between target analytes and interferents. Due to the surface-attached sensing elements, a rapid response was also achieved in this system. Moreover, the non-covalent nature of the resulting heteroternary complex indicates that the trapped target molecules in the rotaxane structure are facilely removable by simply washing, demonstrating an excellent regeneration of the constructed explosive sensors for real-world application. The performed experiments suggested that the rotaxane structure-based sensing protocol opened a new way to develop a new kind of explosive sensors enabling a richer identification of threats.
Starting Page	3583
Ending Page	3590
Page Count	8
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	4
Issue Number	9
Journal	Chemical Science
DOI	10.1039/c3sc51132d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	HMX Citizens band radio Naphthalene Cell surface receptor Aliphatic compound Cucurbitaceae RDX Fluorescence Pentaerythritol tetranitrate Rotaxane
Content Type	Text
Resource Type	Article
Subject	Chemistry

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"Green" PBX Formulations Based on High Explosives (RDX and HMX) and Water-Soluble pH-Sensitive Polymeric Binders.

A fluorescence turn-on mechanism to detect high explosives RDX and PETN.

Trace Detection of RDX, HMX and PETN Explosives Using a Fluorescence Spot Sensor

Pentaerythritol Tetranitrate (PETN)

Frictional properties of single crystals HMX, RDX and PETN explosives.

Chemistry of aliphatic unconjugated nitramines. Part 4.—Photophysical processes of secondary nitramines

Trace Detection of RDX, HMX and PETN Explosives Using a Fluorescence Spot Sensor

Determination of sotalol by fluorescence quenching method

A DSC Study on the Effect of RDX and HMX on the Thermal Decomposition of Phase Stabilized Ammonium Nitrate

CB[8]-based rotaxane as a useful platform for sensitive detection and discrimination of explosives

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"Green" PBX Formulations Based on High Explosives (RDX and HMX) and Water-Soluble pH-Sensitive Polymeric Binders.

A fluorescence turn-on mechanism to detect high explosives RDX and PETN.

Trace Detection of RDX, HMX and PETN Explosives Using a Fluorescence Spot Sensor

Pentaerythritol Tetranitrate (PETN)

Frictional properties of single crystals HMX, RDX and PETN explosives.

Chemistry of aliphatic unconjugated nitramines. Part 4.—Photophysical processes of secondary nitramines

Trace Detection of RDX, HMX and PETN Explosives Using a Fluorescence Spot Sensor

Determination of sotalol by fluorescence quenching method

A DSC Study on the Effect of RDX and HMX on the Thermal Decomposition of Phase Stabilized Ammonium Nitrate

CB[8]-based rotaxane as a useful platform for sensitive detection and discrimination of explosives