A simple
and efficient approach to endow the controllable multi-stimuli-responsive
property for the supramolecular polymer was successfully developed
by rationally introducing iodine into a novel naphthalimide-functionalized
pillar[5]arene-based supramolecular polymer (PNA⊃GBP). Interestingly,
by introducing iodine into the supramolecular polymer PNA⊃GBP,
the iodine could not only control the optical properties and self-assembly
states of PNA⊃GBP via electronic donor–acceptor effect
but also control the molecular recognition properties by competitive
redox reaction. Benefiting from these excellent iodine controlled
multiresponse properties, the PNA⊃GBP showed selective fluorescent
response for cyanide, cysteine, and mercury in supramolecular polymer
gels, water solutions, and living cells with high sensitivities. The
supramolecular polymer PNA⊃GBP could act as a novel smart material
for selective detection CN–, Hg2+, and l-Cys.
A novel approach to achieve ultrasensitive response was successfully developed by rationally introducing the competition between cation-π and exo-wall π-π interactions into a pillar[5]arene-based supramolecular organogel (P5N-OG). Interestingly, the P5N-OG could be used for ion detection and separation, fluorescent display materials as well as ultrasensitive logic gates.
Light-harvesting is a key step in photosynthesis, but it is still a challenge to create an efficient artificial light harvesting system in the broader solar spectrum to mimic natural processes....
A novel approach for the design of multi-stimuli-responsive supramolecular functional materials was successfully developed by introducing the competition of π–π stacking and cation–π interactions into a pillar[5]arene-based supramolecular π-gel (MP5-G).
An efficient perovskite-quantum-dot light-harvesting system with NIR emission was fabricated based on passivation CH3NH3PbBr3 QDs in the supramolecular self-assembly of Zn(II) carboxyl functionalized-pillar[5]arene coordination polymer and two different fluorescence dyes,...
Ultrasensitive response properties are an intriguing concern for stimuli-responsive materials. Herein, we report a novel method to achieve an ultrasensitive response by introducing the competition of cationπ and ππ interactions into a pillar[5]arene-based supramolecular organic framework (SOF-AMP). SOF-AMP was constructed with a novel bis-naphthalimide functionalized pillar[5]arene, which was able to form a stable supramolecular gel (SOF-AMP-G) in cyclohexanol. Interestingly, SOF-AMP-G shows an ultrasensitive response to Fe3+ through the competition of cationπ and ππ interactions. Meanwhile, the Fe3+ coordinated SOF (MSOF-Fe) shows an ultrasensitive response to H2PO4-. SOF-AMP-G displayed yellow fluorescence whereas, after the addition of 0.5 equiv. of Fe3+ to SOF-AMP-G, the yellow fluorescence was quenched. The detection limit of SOF-AMP-G for Fe3+ is 7.54 × 10-9 M. More interestingly, the Fe3+ coordinated SOF gel (MSOF-Fe-G) could sense H2PO4- with a fluorescence "turn-on". The detection limit of MSOF-Fe-G for H2PO4- is 4.21 × 10-9 M. Simultaneously, the Fe3+ and H2PO4- responsive thin films based on these SOF gels were prepared. Moreover, these SOF gels could be used as ultrasensitive ion sensors, fluorescent display materials and sensitive logic gates.
A bifunctional supramolecular pseudorotaxane chemosensor (G-WAP) based on pillar[5]arene and phenazine imidazole was constructed, which could detect Hg2+ and Ag+ in water.
A novel water soluble fluorescent sensor was synthesized by employing the carboxyl and imidazolyl moiety as the hydrophilic group site and Hg2+ binding site, whereas a naphthalimide moiety was used as the signal group.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.