61326-44-1Relevant articles and documents
Tetraphenylethylene(TPE)-Containing Metal-Organic Nanobelt and Its Turn-on Fluorescence for Sulfide (S2-)
Chan, Yi-Tsu,Chen, Mingzhao,Li, Kaixiu,Li, Zhengguang,Liu, Die,Wang, Pingshan,Wang, Shi-Cheng
, p. 6640 - 6645 (2020)
A metal-organic supramolecular nanobelt was synthesized by quantitative self-assembling terpyridine-functionized tetraphenylethylene (TPE) and Cd2+, which only showed a weak emission both in solution or aggregated state. Nevertheless, nanobelt
In Situ Monitoring Apoptosis Process by a Self-Reporting Photosensitizer
Zhang, Tianfu,Li, Yuanyuan,Zheng, Zheng,Ye, Ruquan,Zhang, Yiru,Kwok, Ryan T. K.,Lam, Jacky W. Y.,Tang, Ben Zhong
, (2019)
Although photodynamic therapy (PDT) has thrived as a promising treatment, highly active photosensitizers (PSs) and intense light power can cause treatment overdose. However, extra therapeutic response probes make the monitoring process complicated, ex situ and delayed. Now, this challenge is addressed by a self-reporting cationic PS, named TPE-4EP+, with aggregation-induced emission characteristic. The molecule undergoes mitochondria-to-nucleus translocation during apoptosis induced by PDT, thus enabling the in situ real-time monitoring via fluorescence migration. Moreover, by molecular charge engineering, we prove that the in situ translocation of TPE-4EP+ is mainly attributed to the enhanced interaction with DNA imposed by its multivalent positive charge. The ability of PS to provide PDT with real-time diagnosis help control the treatment dose that can avoid excessive phototoxicity and minimize potential side effect. Future development of new generation of PS is envisioned.
Electrospun nanofibrous membranes incorporating an imidazole-appended p-phenylene-Cu(ii) ensemble as fluoroprobes for the detection of His-proteins
Kim, Ka Young,Jung, Sung Ho,Jung, Jong Hwa
, p. 7222 - 7226 (2015)
Tetra-imidazole-appended p-phenylene-Cu(ii) doped nanofibrous membranes (IP-Cu-NMs) as portable chemoprobes were prepared using the electrospinning method. Fluorescence changes were observed upon dropping amino acids and proteins containing histidine resi
Synthesis and electronic properties of nanometer-size symmetrical tetrakis(poly-p-phenylene)ethylenes
Vyas, Vijay S.,Banerjee, Moloy,Rathore, Rajendra
, p. 6159 - 6162 (2009)
A simple synthesis of soluble tetrakis(poly-p-phenylene)ethylenes (TPEs), where poly-p-phenylene units contain up to 4 phenylene moieties, is accomplished using an easily available tetrakis(4-bromophenyl)ethylene and phenyl, biphenyl, and p-terphenylboron
Aggregation-induced emission encoding supramolecular polymers based on controllable sulfonatocalixarene recognition in aqueous solution
Yao, Xuyang,Ma, Xiang,Tian, He
, p. 5155 - 5160 (2014)
A pH-responsive supramolecular polymer based on a homoditopic bis-p-sulfonatocalixarene host and a tetraphenylethylene derivative guest as building blocks with aggregation-induced emission (AIE) property is fabricated in aqueous solution. Quite different from usual supramolecular polymers constructed before, this novel supramolecular polymer has high luminescence efficiency rather than becoming low-luminescent after polymerization. Interestingly, the AIE signals are switchable between two alternative emission wavelengths in H2O or with ON and OFF switching in the mixing H 2O-THF = 1:1 solution, which are realized by controllable and reversible supramolecular interactions. This strategy to design supramolecular polymers with switchable AIE property overcomes the common problem of aggregation-caused quenching (ACQ) in usual supramolecular polymers and provides a new concept to develop smart supramolecular polymeric materials.
Mercaptomethylphenyl-modified tetraphenylethene as a multifunctional luminophor: Stimuli-responsive luminescence color switching and AIE-active chemdosimeter for sulfur mustard simulants
Wang, Hui,Wang, Dong-En,Guan, Jianping,Han, Xiang,Xue, Pengchong,Liu, Wenming,Yuan, Mao-Sen,Wang, Jinyi
, p. 11565 - 11572 (2017)
As a commonly known chemical warfare agent, sulfur mustard (SM) is a severe vesicant that can induce grievous blisters on the skin and mucous membranes. Because the onset of SM toxicity is fast, a rapid, sensitive, and accurate method for the detection of SM is necessary. However, designing an effective detection method for SM is challenging because SM does not have any traditional molecular recognition sites. In this study, a fluorescence probe for the detection of SM and an SM simulant (2-chloroethyl ethyl sulfide, CEES) was developed based on the reaction of benzenemethanethiol with the analytes. A non-emissive mercaptomethylphenyl-modified tetraphenylethene (TPE) probe was designed and synthesized. This probe can emit strong fluorescence upon reacting with CEES for 5 minutes in an aqueous solution in the presence of metal ions due to the formation of a sandwich-type complex, which can effectively restrict the rotation of the phenyl rings of TPE. Furthermore, this procedure exhibited high sensitivity for analytes and can be applied to the detection of CEES in soil. As a TPE derivative, this probe also exhibited a reversible solid-state luminescence color switching between blue emission (467 nm) in the crystal state and green emission (516 nm) in the amorphous state upon fuming, grinding and heating. These results indicate that S4 has potential as a multifunctional material of a smart luminophor and an AIE-active fluorescent probe for SM.
Near-room-temperature phase-change fluorescent molecular rotor and its hybrids
Jin, Young-Jae,Choi, Young-Ghil,Park, Hyosang,Kwak, Giseop
, p. 260 - 268 (2018)
A unique molecular rotor consisting of a tetraphenylethylene derivative with a paraffin wax-like long alkyl chain (TPE18) is synthesized and compared to other derivatives containing shorter alkyl chains. In differential scanning calorimetry, TPE18 shows a
A Tetradentate Phosphonate Ligand-based Ni-MOF as a Support for Designing High-performance Proton-conducting Materials
Chakraborty, Debabrata,Ghorai, Arijit,Chowdhury, Avik,Banerjee, Susanta,Bhaumik, Asim
, p. 1562 - 1569 (2021)
Developing a robust metal-organic framework (MOF) which facilitates proton hopping along the pore channels is very demanding in the context of fabricating an efficient proton-conducting membrane for fuel cells. Herein, we report the synthesis of a novel tetradentate aromatic phosphonate ligand H8L (L=tetraphenylethylene tetraphosphonic acid) based Ni-MOF, whose crystal structure has been solved from single-crystal X-ray diffraction. Ni-MOF [Ni2(H4L)(H2O)9(C2H7SO)(C2H7NCO)] displays a monoclinic crystal structure with a space group of P 21/c, a=11.887 ?, b=34.148 ?, c=11.131 ?, α=γ=90°, β=103.374°, where a nickel-hexahydrate moiety located inside the void space of the framework through several H-bonding interactions. Upon treatment of the Ni-MOF in different pH media as well as solvents, the framework remained unaltered, suggesting the presence of strong H-bonding interactions in the framework. High framework stability of Ni-MOF bearing H-bonding interactions motivated us to explore this metal-organic framework material as proton-conducting medium after external proton doping. Due to the presence of a large number of H-bonding interactions and the presence of water molecules in the framework we have carried out the doping of organic p-toluenesulfonic acid (PTSA) and inorganic sulphuric acid (SA) in this Ni-MOF and observed high proton conductivity of 5.28×10?2 S cm?1 at 90 °C and 98% relative humidity for the SA-doped material. Enhancement of proton conductivity by proton doping under humid conditions suggested a very promising feature of this Ni-MOF.
An imidazole-appended p-phenylene-Cu(II) ensemble as a chemoprobe for histidine in biological samples
Kim, Ka Young,Jung, Sung Ho,Lee, Joon-Hwa,Lee, Shim Sung,Jung, Jong Hwa
, p. 15243 - 15246 (2014)
A tetra-imidazole-appended tetrakis(p-phenylene)ethylene 1-Cu2+ ensemble was found to enhance fluorescence upon addition of histidine, but not with any other amino acids. The 1-Cu2+ ensemble also selectively detected proteins contain
A photoluminescent covalent triazine framework: CO2 adsorption, light-driven hydrogen evolution and sensing of nitroaromatics
Bhunia, Asamanjoy,Esquivel, Dolores,Dey, Subarna,Fernández-Terán, Ricardo,Goto, Yasutomo,Inagaki, Shinji,Van Der Voort, Pascal,Janiak, Christoph
, p. 13450 - 13457 (2016)
A highly photoluminescent (PL) porous covalent triazine-based framework (PCTF-8) is synthesized from tetra(4-cyanophenyl)ethylene by using trifluoromethanesulfonic acid as the catalyst at room temperature. Due to triazine units in the framework, the PCTF-
Synthesis of tetraphenylethylene-based conjugated microporous polymers for detection of nitroaromatic explosive compounds
Namgung, Ho,Lee, Jeong Jun,Gwon, Young Jin,Lee, Taek Seung
, p. 34291 - 34296 (2018)
Conjugated microporous polymers (CMPs) containing tetraphenylethylene (TPE) were synthesized via the Suzuki coupling polymerization. The tetrafunctional TPE moiety in the polymer backbone was linked with the difunctional phenylene group to exhibit a porous structure with high fluorescence in the solid state because of aggregation-induced emissive TPE. The porous polymer with a fluorescent TPE group successfully detected nitroaromatic explosive compounds that exhibited fluorescence quenching, in which the polymer shows high quenching efficiency to picric acid among nitroaromatic explosive compounds. The interaction between the electron-rich TPE group and the electron-deficient nitroaromatic compounds played a decisive role in fluorescence quenching via a photoinduced electron transfer (PET). Compared with a linear polymer containing TPE, the porous, crosslinked polymer showed better sensing performance toward nitroaromatic compounds, presumably because of the more efficient interaction between TPE and nitroaromatic compounds in the pores of TPE-based CMP (TPE-CMP).
Molecular phosphonic acid-tethered tetraphenylethene AIEgen based highly selective fluorescent turn-on sensor for neomycin
Al Kobaisi, Mohammad,Bhosale, Sheshanath V.,Bhosale, Sidhanath V.,Malegaonkar, Jotiram N.,More, Kerba S.
, (2021/12/23)
We demonstrated highly selective and sensitive tetraphenylethene -tetraphosphonic acids for the facile detection of aminoglycoside antibiotic neomycin for the first time. Neomycin was found to effectively induce aggregate formation of (4-(1,2,2-tris(4-pho
Synthesis and Properties of BODIPY Appended Tetraphenylethylene Scaffolds as Photoactive Arrays
Sample, Harry C.,Emandi, Ganapathi,Twamley, Brendan,Grover, Nitika,Khurana, Bhavya,Sol, Vincent,Senge, Mathias O.
, p. 4136 - 4143 (2021/08/24)
Tetraphenylethylene (TPE) and its derivatives exhibit excellent aggregation-induced emission (AIE) properties. The TPE unit is easily accessible, and many functional groups can be introduced in a facile manner to yield effective luminescent materials in both solution and the solid-state. It is because of this, several TPE-based compounds have been developed and applied in many areas, such as OLEDs and chemical sensors. Boron dipyrromethenes (BODIPYs) are a class of pyrrolic fluorophore of great interest with myriad application in both material science and biomedical applications. Through the combination of Pd-catalyzed cross-coupling reactions and traditional dipyrromethene chemistry, we present the syntheses of novel tetra-BODIPY-appended TPE derivatives with different distances between the TPE and BODIPY cores. The TPE-BODIPY arrays 6 and 9 show vastly differing AIE properties in THF/H2O systems, with 9 exhibiting dual-AIE, along with both conjugates being found to produce singlet oxygen (1O2). We presume the synthesized BODIPY-appended TPE scaffolds to be utilized for potential applications in the fields of light-emitting systems and theranostics.
