Arene-based Host Research Articles

Supramolecular Hybrid Material Constructed from Graphene Oxide and Pillar[6]arene-Based Host-Guest Complex as a Ultrasound and Photoacoustic Signals Nanoamplifier.

Photoacoustic imaging combines the merits of ultrasound imaging and optical imaging that allows a fascinating imaging paradigm with deeper tissue penetration than optical imaging and higher spatial resolution than ultrasound imaging. Herein, we develop a supramolecular hybrid material composed of graphene oxide (GO) and a pillar[6]arene-based host-guest complex (CP6⊃PyN), which can be used as a ultrasound (US) and photoacoustic (PA) signal nanoamplifier. Triggered by the near-infrared (NIR) light mediated photothermal effect, CO2 nanobubbles are generated on the surface of GO@CP6⊃PyN due to the decomposition of bicarbonate counterions, thus strongly amplifying its US and PA performances. Our study, for the first time, demonstrates enhanced US and PA activity in supramolecular hybrid material on the basis of host-guest chemistry as a photoacoustic nanoplatform.

A multi-responsive cross-linked supramolecular polymer network constructed by mussel yield coordination interaction and pillar[5]arene-based host-guest complexation.

Here a novel cross-linked supramolecular polymer network with thermal, pH, and H2S responsiveness was prepared inspired by mussel yield catechol-Fe3+ coordination and pillar[5]arene-based host-guest interactions.

A supramolecular hyperbranched polymer with multi-responsiveness constructed by pillar[5]arene-based host–guest recognition and its application in the breath figure method

A supramolecular gel with multi-responsiveness or honeycomb-patterned film was constructed by pillararene-based host–guest recognition.

Solid-state self-inclusion complexation behaviour of a pillar[5]arene-based host–guest conjugate

A host–guest conjugate consisting of a pillar[5]arene and an ethylene moiety containing a triazole group at one end and a perfluorooctyl group at the other end displayed unusual real-time scale solid-state self-inclusion complexation behaviour.

Artificial light-harvesting supramolecular polymeric nanoparticles formed by pillar[5]arene-based host-guest interaction.

Artificial light-harvesting nanoparticles were prepared from supramolecular polymers comprised of pillar[5]arene with anthracene-derived donors and acceptors through host-guest interactions. The resulting water-dispersible nanoparticles displayed efficient energy transfer and excellent light harvesting ability in part because the steric bulk of pillar[5]arene suppressed the self-quenching of the chromophores.

Efficient enhancement of fluorescence emission via TPE functionalized cationic pillar[5]arene-based host–guest recognition-mediated supramolecular self-assembly

A tetraphenylethene (TPE) functionalized cationic pillar[5]arene (CWP5-TPE) was successfully synthesized, and the intramolecular rotation of the TPE motif was restricted via cationic pillar[5]arene-based host–guest recognition-mediated supramolecular self-assembly in water, resulting in the efficient enhancement of fluorescence emission based on the aggregation induced emission (AIE) mechanism. CWP5-TPE self-assembled into nanoribbons while the host–guest inclusion complex formed into supramolecular amphiphile nanoparticles in water.

A cationic water-soluble pillar[7]arene: Synthesis and its fluorescent host−guest complex in water

The first cationic water-soluble pillar[7]arene CWP7 was prepared. 1H NMR, 13C NMR, and MALDI-TOF-MS were performed to provide converging evidences of the structure of obtained CWP7. Host–guest complexation between this novel pillar[7]arene-based host and sodium pyren-1-olate guest G was fully investigated in aqueous solution. Increased fluorescence intensity was observed during the inclusion complexation. Driven by the cooperativity of electrostatic interactions, π-stacking interactions and hydrophilic/hydrophobic interactions, the guest penetrated into the cavity of CWP7 to form a pseudorotaxane-type inclusion complex with relatively high binding affinity.

A triply-responsive supramolecular amphiphile fabricated by a thermal-responsive pillar[5]arene-based host–guest recognition motif

A novel molecular recognition motif was built between a neutral water soluble pillar[5]arene and decyltrimethylammonium bromide in water. Its thermal-controlled complexation with G1 in water was investigated. Furthermore, based on this new thermal responsive host–guest recognition motif, we further constructed a supramolecular amphiphile between this pillar[5]arene and a trimethylammonium bromide derivative containing an azobenzene group at the other end. This supramolecular amphiphile showed triply-responsiveness, that is, thermal responsiveness of the host–guest complex, photo-responsiveness of the azobenzene group and chemical-responsiveness by adding β-CD.

Enhancing the solubility and bioactivity of anticancer drug tamoxifen by water-soluble pillar[6]arene-based host-guest complexation.

A water-soluble pillar[6]arene functions as a solubilizing agent to enhance the solubility and bioactivity of poorly water-soluble anticancer drug tamoxifen by host-guest complexation between it and tamoxifen.

A supramolecular polymer network gel with stimuli-responsiveness constructed by orthogonal metal ion coordination and pillar[5]arene-based host–guest recognition

A novel external stimuli-responsive supramolecular polymer network gel was fabricated by orthogonal Ag-coordination and pillar[5]arene-based host–guest interactions.

Correction: The macroscopic wettable surface: fabricated by calix[4]arene-based host-guest interaction and chiral discrimination of glucose.

Correction for 'The macroscopic wettable surface: fabricated by calix[4]arene-based host-guest interaction and chiral discrimination of glucose' by Yue Sun et al., Chem. Commun., 2016, 52, 14416-14418.

Two novel supramolecular metallogels constructed by platinum(ii) coordination and pillar[5]arene-based host–guest interactions

Two multi-responsive supramolecular metallogels were constructed by coordination-driven self-assembly, host–guest interaction and supramolecular polymerization.

In situ supramolecular polymerization promoted by the marriage of dynamic covalent bonding and pillar[5]arene-based host-guest interaction.

In situ fabrication of a temperature and pH dual-responsive linear supramolecular polymer through the marriage of dynamic covalent bonding and pillar[5]arene-based host-guest interaction was investigated.

Control on the photo-responsive assembly of a stilbene-containing amphiphile by using pillar[5]arene-based host-guest interactions.

A supra-amphiphilic system with a tunable supra-amphiphilic type and self-assembled morphology was constructed and controlled via light and host-guest interactions based on a water-soluble pillar[5]arene and a stiff-stilbene.

A redox-responsive supramolecular amphiphile fabricated by selenium-containing pillar[5]arene-based host–guest recognition

A novel redox-responsive molecular recognition motif was built between a neutral selenium-containing pillar[5]arene and a pyridinium bromide salt in water. It was further used to construct the first pillararene-based selenium-containing supramolecular amphiphile with application in controlled release.

Supramolecular main-chain polycatenanes formed by orthogonal metal ion coordination and pillar[5]arene-based host–guest interaction

A novel supramolecular main-chain polycatenane was constructed by coordination-driven self-assembly, host–guest interaction and supramolecular polymerization.

A diols-responsive triple-component supra-amphiphile constructed from pillar[5]arene-based recognition

A triple-component supra-amphiphile is constructed from dynamic covalent chemistry and pillar[5]arene-based host–guest recognition. The diol-responsive self-assembly of this ternary supra-amphiphile is investigated in aqueous solution.

The macroscopic wettable surface: fabricated by calix[4]arene-based host-guest interaction and chiral discrimination of glucose.

Herein, we reported a new strategy based on self-assembly chemistry for chiral discrimination of glucose on a new S-mandelic acid-appended calix[4]arene (S-MC4) modified nanostructure, which exhibits macroscopic chiral preference for d-glucose via contact angle measurements (CA). The proposed macroscopic chiral device displays rapidly remarkable specificity and is convenient to use, which should be suitable for diagnostic purposes, nanomedical applications, etc.

Pillar[7]arene-based host–guest complex in water: dual-responsiveness and application in controllable self-assembly

A dual-responsive supra-amphiphile was constructed based on a water-soluble pillar[7]arene and a pyrene-containing guest. The self-assembly morphology of this supra-amphiphile could be adjusted by changing pH or irradiation by UV light.

Pillar[10]arene-based host–guest complexation promoted self-assembly: from nanoparticles to uniform giant vesicles

A novel host-guest recognition motif between a water-soluble pillar[10]arene and pyrene derivative was established and further applied in the fabrication of a pH-responsive supra-amphiphile.