JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2013
·Vol. 160
·期 3
·H173
·
IF 2.588
Bin Hu,Xiaojing Lv,Jingwei Sun,Mi Ouyang,Zhiyan Fu,Cheng Zhang
In this study, a novel material, Z-2, 3-bis(4-(thiophen-3-yl)-phenyl) –acrylonitrile (Z-TPA), was synthesized and characterized. Optical and electrochromic properties of its homopolymer and copolymer with 3, 4-Ethylenedioxythiophene (EDOT) were investigated in details. UV–vis absorption and fluorescence spectra showed that this material possessed the properties of aggregation-induced emission (AIE) due to the introduction of acrylonitrile, which could show sky-blue emitting at the aggregation state and almost no emitting at the solution state. Both its polymer and copolymer displayed better redox activity. Spectroelectrochemical analysis displayed that the copolymer film exhibited multicolor showing, with a claret red in the fully reduced form and a blue-green color in the fully oxidized. Spectrochronoamperometry data revealed that the copolymer films had fast switching time and high chromatic contrast as compared to the homopolymer P(Z-TPA). What's more, the copolymer film was used to construct a dual type polymer electrochromic device (ECDs) with PEDOT. The performance of ECDs were also investigated.
研究领域:
材料科学
·
光学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Faisal Ahmad,Yelan Xiao,Tong Shu,Guangyao Zhang,Xueji Zhang
Electrochemiluminescence (ECL) is rapidly emerging as an excellent electrochemical analytical technique for the specific and sensitive detection of various biomarkers and hazardous trace metals. Among ECL emitters, gold nanoclusters (AuNCs) have proven to be excellent luminophores due to their remarkable luminescent properties, stability, and biocompatibility. However, the low ECL efficiency of AuNCs precludes their application in ultrasensitive biosensing. One of the key reasons for the low ECL efficiency of AuNCs is the nonradiative energy transitions arising from intramolecular vibrations and rotations of the ligands on the surface of AuNCs. Herein, we explore the ECL of Zn2+/Au22(SG)18/PDA nanoclusters (NCs), where Zn2+ and 2,6-pyridinedicarboxaldehyde (PDA) activate the restriction of intramolecular motion (RIM) through aggregation-induced emission (AIE) to aggregation-induced enhanced emission (AIEE). This effect is achieved via cross-linking of Zn2+ and PDA with glutathione on the surface of Au22(SG)18, resulting in a significant enhancement of ECL emission compared to Au22(SG)18 NCs alone. A sensitive ECL sensing system was devised with Zn2+/Au22(SG)18/PDA as the ECL emitter, with triethylamine (TEA) as the coreactant, for the detection of Cu2+ and histidine in the linear ranges of 0.1 to 40 μM and 1 to 85 μM, respectively, with detection limits of 0.705 and 1.928 μM, respectively.
研究领域:
分析化学
·
纳米技术
·
电化学
·
生物传感
·
环境监测
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 18
·10440
·
IF 6.208
Yingxiang Zhai,Jiguo Zhang,Jian Li,Shouxin Liu,Zhijun Chen,Shujun Li
The potential for leakage of liquid electrolytes from magnesium (Mg) batteries represents a large hurdle to future application. Despite this, there are no efficient sensing technologies to detect the leakage of liquid electrolytes. Here, we developed a sensor using laccaic acid (L-AIEgen), a naturally occurring aggregation-induced emission luminogen (AIEgens) isolated from the beetle Laccifer lacca. L-AIEgen showed good selectivity and sensitivity for Mg2+, a universal component of electrolytes in Mg batteries. Using L-AIEgen, we then produced a smart film (L-AIE-F) that was able to sense leakage of electrolytes from Mg batteries. L-AIE-F showed a strong “turn-on” AIE-active fluorescence at the leakage point of electrolyte from model Mg batteries. To the best of our knowledge, this is the first time that AIE technology has been used to sense the leakage of electrolytes.Keywords:laccaic acid;aggregation-induced emission;smart film;detect of Mg2+
研究领域:
材料科学
·
化学
✓ 已验证
DOI
PubMed
高影响因子
LIQUID CRYSTALS
·
2022
·
IF 2.676
Zengwei Yang,Xinyao Huang,Jianchao Cheng,Hongyu Guo,Fafu Yang
This paper reported the first example of thiophene-containing AIE fluorescence liquid crystals. Thiophene-vinylnitrile Schiff-base derivatives 5 with one alkyl chain and 6 with two alkyl chains were prepared conveniently in yields of 86% and 88%, respectively. They exhibited the smectic phases from 91.5 to 130.6℃ for sample 5 and 71.3 to 120.2℃ for sample 6. They displayed excellent fluorescence in aggregated states of solid film and mesophase. The absolute fluorescence quantum yields in solid film were as high as 0.64 for samples 5 and 0.76 for sample 6, respectively. These results suggested thiophene-vinylnitrile Schiff-base derivatives 5 and 6 were excellent fluorescence liquid crystals and the multiple alkyl chains on thiophene-vinylnitrile Schiff-base derivatives were favourable for the low temperature of mesophase and high fluorescence.
研究领域:
材料化学
·
光学材料
✓ 已验证
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
·
IF 4.6
Lingchen Wang,Yue Huang,Linlin Sun,Xiaojuan Gong,Chuan Dong,Shaomin Shuang
Herein, a novel rapid, specific, and sensitive probe for adenosine triphosphate (ATP) detection is developed. We have pioneered the integration of split ATP aptamers with aggregation-induced emission (AIE) via chemical binding to obtain a novel ATP detection probe (TPE probe). Upon the binding of the ATP split aptamer to the target, the intermolecular distance of the AIE molecules decreases, restricting their spatial rotation, which leads to an enhancement of the fluorescence signal, thereby enabling the detection of ATP. This unique design provides the probe with both target-specific recognition capability of the aptamer and sensitive signal-reporting function. Under the optimized experimental conditions, the probe exhibits a linearity range from 1-1000 nM with limit of detection 0.14 nM, displaying a comparative advantage over previously reported methods in terms of sensitivity and selectivity. Additionally, this method demonstrated satisfactory performance for ATP detection in beer samples, with recoveries between 97.5 % to 104.6 %. More importantly, the current research is expected to provide an effective monitoring method for beer quality control.
研究领域:
生物化学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FLUORESCENCE
·
2024
·
IF 2.6
Ning Kefan,Ma Xinhuan,Wang Xinyao,Cui Shiqiang,Pu Shouzhi
As a new type of zero-dimensional nanomaterial, carbon dots are widely applied in various fields. However, most of the carbon dots have aggregation fluorescence quenching properties, which limited their practical applications. In this study, a novel sulfur-doped carbon dots (S-CDs) was prepared by solvothermal method. The properties of the S-CDs in ethanol solution and in solid state were investigated respectively. The results showed that the S-CDs have an excited wavelength dependent emission of blue fluorescence in ethanol solution, and have orange fluorescence emission in solid state and composite films, indicating the prepared S-CDs has aggregation-induced emission (AIE) performance. The main reason was that the presence of S-S bonds and the intramolecular rotation of aromatic rings were limited in solid state, resulting in its emission of orange fluorescence. Furthermore, the S-CDs could be applied to identify fingerprints, anti-counterfeiting.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2022
·
IF 18.027
Haixiang Liu,Neng Yan,Tin Yan Wong,Henry Lam,Jacky W. Y. Lam,Ryan T. K. Kwok,Jianwei Sun,Ben Zhong Tang
Microalgae-based biofuels are receiving attention at the environmental, economic, and social levels because they are clean, renewable, and quickly produced. The green algae Chlorella vulgaris has been extensively studied in research laboratories and the biofuel industry as a model organism to increase lipid production to be cost-effective in commercial production. In this work, we utilized a lipid-droplet-specific luminogen with aggregation-induced emission (AIE) characteristics to increase the lipid production of C. vulgaris by fluorescent imaging and sorting of those algal cells with large and rich lipid droplets for subculturing. The AIE-active TPA-A enabled real-time monitoring of the size and number of lipid droplets in C. vulgaris during their growth period so that we can identify the best time for harvesting. Furthermore, the algae cells with high lipid content were identified and collected for subculturing by the technique of fluorescence-activated cell sorting (FACS). The lipid production in the generation of two successive selections was almost doubled compared to the generation with natural selection. This work demonstrated that the technologies of AIE and FACS could be applied together to improve the production of a third-generation biofuel.
研究领域:
生物技术
·
能源生物学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2024
·
IF 4.1
Jun Huang,Weijing Yao,Xijin Cui,Libo Si,Dai Yang,Xuying Liu,Wentao Liu
Providing aggregation-induced emission (AIE) polyurethane with self-healing capability can increase the lifetime of the material and adapt it to multiple application scenarios, which is a huge challenge in the development of luminescent smart materials. Herein, a range of transparent fluorescence polyurethanes (FPUs) with prominent strength were designed and synthesized. The optimization of robust FPUs exhibits outstanding mechanical performance (33.5 MPa tensile strength, 120.2 MJ m −3 toughness) and self-healing ability (88.9 %, at 80 °C for 2 h). Furthermore, the aggregation of tetraphenylethylene structure in the hard segment causes the system to emit bright blue fluoresence. We successfully screen-printed designable patterns on the self-healing polyurethane substrates. The concealed patterns self-repair after damage, and can be clearly and robustly displayed under 365 nm light irradiation. The as-prepared multifunctional self-healing material, exhibiting stable AIE fluorescence, is anticipated to possess significant value in the domains of smart anti-counterfeiting materials, flexible display screens and intelligent optoelectronics.
研究领域:
材料科学
·
光学
·
智能材料
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Liming Fu,Cheng Zhang,Haitao Li,Ke Jian,Yunhai Han,Xihui Zhao
Although carbon dots (CDs) are a fluorescent nanomaterial with tremendous development potential, solid-state CDs have not been effectively explored due to the fluorescence quenching effect caused by aggregation. Herein, multi-color tunable aggregation-induced emission (AIE) CDs were constructed using dithiosalicylic acid (DTSA) and ammonium sulfate as raw materials by controlling the reaction temperature. Herein, the AIE behavior of CDs is mainly ascribed to the presence of disulfide bonds, which not only enhance the hydrophobicity of CDs, but also restrict the intramolecular rotation of the aggregated CDs, thus improving the surface state fluorescence of CDs, resulting in solid-state fluorescence (SSF) in longwave emission. More importantly, the emission behavior of the obtained CDs can be regulated by controlling the reaction temperature, which may be due to the synergistic effect caused by the differences in N, S content, functional group ratio, and size distribution of synthesized CDs at different temperatures, meanwhile producing different AIE behavior and fluorescence resonance energy transfer (FRET) efficiency, leading to the corresponding five different colors of AIE CDs . Furthermore, the synthesized AIE CDs have been successfully employed in various applications, including discoloration hydrogel, color-changing anti-counterfeit paper, and efficient latent fingerprints detection with enhanced details.
研究领域:
材料科学
·
化学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
BIOMACROMOLECULES
·
2024
·
IF 5.5
Xiangyi Liu,Lulu Du,Jia Liu,Yueting Shi,Qipeng Liu,Ying Xu,Yingying Xia,Xiaiting Wang,Dan Ding,Xingyi Li,Deqing Lin
With the advantages of less invasiveness and better shape adaptability, in situ-forming hydrogels are desired biomaterials as scaffolds, drug carriers, and so on. Herein, a negatively charged NaCl-responsive ultrashort peptide sequence (EEH) is reported whose electrostatic repulsion can be reduced through the charge-shielding effect. Under physiological conditions, its AIEgen-capped amphiphile TPE-GEEH of low concentration (1 mg/mL) presents NaCl-triggered morphological transformation from micelle to closely packed fiber with enhanced emission, which can be applied to biosense sodium ion (Na+) with high sensitivity and quick response. At a slightly acidic pH, 10 mg/mL TPE-GEEH undergoes sol–gel transition upon addition of NaCl (100 mM) with improved mechanical properties, which should be useful to develop an in situ-forming hydrogel. Overall, our report provides a simple strategy to construct NaCl-responsive assemblies for potential application in biosensors and drug delivery system.
研究领域:
生物材料
·
分子生物学
·
药物递送系统
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2020
·Vol. 305
·期 4
·2000013
·
IF 3.853
Quanyi Yin,Shuhua Tu,Min Chen,Limin Wu
Most of elastomers for fabrication of comfortable epidermal devices and smart actuators produce responsive signals by the stimuli-induced deformation. Herein, a dynamic visualization of external stimuli rather than the deformation through synthesis of a self-healing poly(dimethylsiloxane) (PDMS)-based elastomer doped with aggregation-induced emission (AIE) molecules is reported. The self-healing PDMS-based elastomer is designed and synthesized through molecule integration of reversible multi-strength H-bonds and permanent covalent crosslink sites. The adjustment of the weight ratio of elastic cross-linker offers tunable mechanical properties of the resultant elastomer. After doping such an elastomer with AIE molecules of 1,1,2,2-tetrakis(4-nitrophenyl)ethane, the elastomer composite displays strong on–off fluorescence depending upon mechanical damage and temperatures, which can be used to detect the breaking and self-healing performances, as well as the temperature change. The strategy described here provides another way to develop smart polymeric elastomers for practical applications.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2022
·Vol. 33
·期 12
·4120-4130
·
IF 3.348
Xue Meng,Da Zhang,Meng Wang,Ronghui Zhao,Pengfei Zhang,Jingyuan Zhao,Kuilin Deng
For the nontraditional aggregation-induced emission (AIE) active polymers, the heterocyclic structure on the macromolecular backbone and side chains play a crucial role in its fluorescence generation. In this paper, we facilely prepared a series of poly(β-lactam) derivatives (PLTM) by Staudinger polymerization. As expected, PLTMs with four-membered heterocycles along the main-chain shows a remarkable AIE performance with the fluorescence emission at 520 nm, while no fluorescence was observed for both β-lactam (repeating unit) and a model polymer for PLTM. The fluorescence properties of PLTMs greatly depend on the intramolecular aggregation of β-lactam structures, the size of the substituents, and appropriate length of CH 2 spacer. In addition, PLTMs can specifically detect Fe 3+ ions with a limit of detection (LOD) of 7.2 μM even in the presence of other 13 metal ions. Similar to the biological activity of β-lactam, AIE-active PLTMs shows a bactericidal effect on Staphylococcus aureus and Escherichia coli with the minimum inhibitory concentration of about 8 and 4 mg/mL. In brief, the preparation and versatility of PLTMs with β-lactam structure provide useful references for designing other nontraditional AIE-active polymers as well as for ion detection and antibacterial processes.
研究领域:
高分子化学
·
分析化学
·
生物化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）