Journal of Materials Chemistry C
·
2019
·Vol. 7
·期 16
·4855-4862
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IF 6.641
Xinbo Gong,Chengyi Hou,Qinghong Zhang,Yaogang Li,Hongzhi Wang
Robust, washable, steam permeable fabrics that display solvatochromic structural color changes are fabricated by a solvent evaporation-driven self-assembly method using poly(styrene–butyl acrylate–acrylic acid) core–shell colloidal microspheres. The colloidal microspheres self-assemble into a periodic arrangement to form a colorless transparent film on fabrics. Because of the lack of refractive index difference between the film and fabric, the fabric retains its original color (black polyester in this work). As soon as the fabric is wetted, its color changes. When the wetted fabric is completely dried, its original black color appears again. These solvatochromic fabrics do not show apparent color fading during repeated stretching or after laundering. The structural color fabrics show promising steam permeability with only a 13% decrease compared with the original fabrics. Therefore, the wearability of the fabric meets the demands for applications in the textile industry.
研究领域:
材料科学
·
纺织工程
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DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2025
·
IF 4.7
Lina Guo,Ligang Yan,Ruijun Xie,Limin Han,Ning Zhu
In this work, we investigate a palladium complex exhibiting aggregation-induced emission enhancement (AIEE) properties and remarkable solvatochromism behavior driven by structural changes arising from solvent-solute interactions. Specifically, in polar aprotic solvents, the color of the Pd complex changes from blue to purple as solvent polarity increases, accompanied by a blue shift in the UV–Vis spectrum. Notably, this blue shift is even more pronounced in polar protic solvents, which also show a significant increase in fluorescence emission. These effects are likely driven by hydrogen-bond interaction between the protic solvents and the Pd complex. Density Functional Theory (DFT) calculations show that increased solvent polarity significantly alters the electronic distribution of the Pd complex. Higher solvent polarity leads to a higher orbital transition energy, resulting in a blue shift in the UV–Vis absorption spectrum. X-ray single-crystal structure analysis further reveals that hydrogen-bonding interactions between the Pd complex and methanol stabilize its planar structure. When water is introduced, the Pd complex undergoes aggregation through non-covalent interactions, which modify the stacking arrangement. This change weakens the π-π interactions between adjacent molecules, thereby minimizing energy loss in the system. Consequently, the Pd complex effectively utilizes the AIEE mechanism to detect water content in methanol.
研究领域:
化学
·
材料科学
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2024
·
IF 4
Yuying Du,Yuanyuan Gao,Yanlong Gu,Li Lv,Ning Zhu,Limin Han,Xing Zeng
Owing to the diverse implication of carbazole scaffolds in medicinal chemistry, photoelectronic materials and chromophores, the molecules containing the carbazole motif have attracted significant attention over the years. In this work, the vibronic contributions to carbazole structures could facilely change the solvatochromic effect, absorption wavelength, emission wavelength, and Stokes shifts of six 2-carbonyl carbazole ketones fluorophores. Among them, the structure of 1-(1-methyl- 9H -carbazol-2-yl)ethanone (3a) were confirmed from single crystal XRD studies. The ratiometric detection of Fe(III) ion of 2-carbonyl carbazole ketone 3a were investigated. Furthermore, it was speculated that chemosensor 3a toward the recognition of Fe 3+ cation was dependent on its rigid structure and good coplanarity of the conjugated system, strong intramolecular charge-transfer of 3a .
研究领域:
有机化学
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分析化学
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材料科学
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DOI
高影响因子
ACS Applied Nano Materials
·
2022
·
IF 6.14
Xiaohui Wang,Yichen Li,Jianyong Zheng,Xinyang Li,Guojin Liu,Lan Zhou,Wenlong Zhou,Jianzhong Shao
Responsive photonic crystals (PCs) with a nanoscale band gap assembled by colloidal nanospheres have been increasingly utilized in detection and sensing devices owing to their attractive ability to change color in response to external conditions. However, most of the reported works have been dedicated to single-functional PCs, which can only be used as sensors or detectors in a specific situation. Thus, producing a multi-functional PC for various industrial applications remains a challenge. In this work, multi-functional soft PC films (SPCFs) with a brilliant structural color and a robust structure are fabricated by using polystyrene@poly(methyl methacrylate-butyl acrylate) [PS@P(MMA-BA)] nanospheres with size in the range of 200–350 nm as building blocks. The SPCFs possess both the mechanochromic and solvatochromic properties owing to the adjustable photonic band gap under stress and polar solvent conditions. The mechanochromic effect of the SPCF under stretching results in a blue shift of the structural color due to the decrease in lattice spacing. In contrast, the solvatochromic mechanism of the SPCF is that it can be swollen by polar solvents, resulting in the increase in the lattice spacing of PCs and a red shift of the structural color. Meanwhile, the SPCF can keep its original structural color while stretched for 20 cycles or when the organic solvent is completely evaporated. Therefore, robust multi-functional SPCFs fabricated by the self-assembly of PS@P(MMA-BA) nanospheres under gravity sedimentation can respond to stress and organic solvents, showing great potential for use in sensors and detectors.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2020
·
IF 7.1
Md. Rajibur Rahaman Khan,Seungtaek Oh,Giheon Choi,Hwa Sung Lee
We design and develop a low-cost, highly-sensitive, wide dynamic range interdigitated capacitor (IDC) lactate sensor based on the capacitance variation principle. We use Nile red, which has solvatochromic properties and this dye containing sensing membrane deposit into the interdigitated electrode (IDE) to prepare an IDC lactate sensing element. We apply the capacitance-to-phase conversion technique to detect lactate concentrations between 100 nM and 1 M by altering the dielectric constant of the membrane. As a result, the capacitance of the IDC sensing element change, introducing a phase shift and producing an output voltage. The sensitivity of the IDC sensing element is 11.28 ns/decade and offer a linear sensing response over a wide dynamic range with a correlation coefficient of R 2 ≈ 0.998. The IDC sensing element also offers an extremely stable response with a fast response time of 1.02 s and fast recovery time of 1.3 s. The relative standard deviation of the stability is 0.024. The proposed IDC lactate sensing element show/exhibit an excellent sensing performance compare to the other lactate-sensors.
研究领域:
生物医学工程
·
传感技术
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分析化学
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DOI
高影响因子
DYES AND PIGMENTS
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2017
·
IF 3.473
Xiao-Lei Zhao,Hui-Fen Qian,Wei Huang
A family of bi-heterocyclic dyes have been first synthesized by using heterocyclic pyridone and benzothiazole components. UV−Vis spectral analyses reveal distinct spectral behaviors depending on the introduced electron-withdrawing and electron-donating groups in the benzothiazol ring as well as the polarity of solvents. Namely, nitrobenzothiazol based bi-heterocyclic dyes display more obvious solvatochromism compared with both methylbenzothiazol based ones and previously reported azobenzene based half-heterocyclic pyridone dyes. More interestingly, 1 H NMR and UV−Vis spectral results as well as single-crystal structures manifest that these dyes are in the hydrazone form in the solid state and in the non-polar solvents. However, they adopt dominating azo form in polar solvents and it can be transformed to the hydrazone form in the acidic condition, which are both different from all known half-heterocyclic pyridone dyes. In addition, transformation from hydrazone to deprotonated azo form can be achieved via metal-ion complexation, and four Ni II and Cu II complexes with different pyridone N -tails have been structurally characterized. It is noted that the ligands adopt different tridentate coordination fashions with Ni II and Cu II ions and a rare tetranuclear Cu II complex with equal Cu⋯Cu separation is obtained.
研究领域:
有机化学
·
配位化学
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
·
IF 6.633
Xiu-Mei Song,Zong-Cai Feng,Yancheng Wu,Jiang-Li Song,Lu-Feng Wei,Shu-Yi Zeng
Two novel triphenylamine-based conjugated compounds were designed and synthesized. The compounds exhibited remarkable solvatochromism by changing emission colour from blue to yellow in polar organic solvents and were used as the fluorescent sensors for the detection of water in six common organic solvents, including acetonitrile, acetone, ethanol, tetrahydrofuran (THF), dimethylformamide (DMF) and dimethylsulfoxide (DMSO). Both sensors showed high sensitivity to detect water in the above-mentioned organic solvents in a wide range. The water sensing behavior of the sensors in acetonitrile was more effective, with a detection limit as low as 0.0079 v% and 0.0071 v%, respectively and a wide detection range (0–5.33 v%). Real application of the sensors was successfully carried out for detecting the unknown water content in commercial products, such as corn-starch, salt and sugar.
研究领域:
化学
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分析化学
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材料科学
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DOI
高影响因子
MACROMOLECULES
·
2023
·
IF 5.5
Jiaxing Zhang,Yi Yao,Yangwen Zhang,Di Wu,Wen Li,Andrew K. Whittaker,Afang Zhang
Polymeric microgels form a class of promising materials for various applications based on their highly tunable swelling and cooperative interactions between the cross-linked polymer chains. Here, we report on a convenient route for the fabrication of polymeric microgels through in situ cross-linking polymerization of thermally collapsed macromonomers carrying 3-fold dendritic oligoethylene glycol (OEG) pendants, affording thermoresponsive dendronized microgels with intriguing microconfinement. This methodology has been proven to be versatile and can be used to prepare intelligent microgels through homopolymerization of thermoresponsive dendronized macromonomers, or via copolymerization with either hydrophobic or hydrophilic, and dendronized or nondendronized comonomers. The thermoresponsive microgels of uniform sizes undergo shrinking or swelling by changing the temperature above or below their phase transition temperatures and thus exhibit tunable microconfinement to encapsulated solvatochromic dye molecules. This outstanding capacity for confinement by the microgels is compared to linear copolymers with or without dendritic architectures and is proposed to originate from both dendritic crowding effects and cooperative interactions between polymer chains within the network. This remarkable feature of microconfinement opens a new era for microgels to reversibly encapsulate and protect guest molecules and provides a platform to manipulate the functions of the encapsulated guests through external stimuli.
研究领域:
材料科学
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高分子化学
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产品关联
DOI
高影响因子
DYES AND PIGMENTS
·
2016
·
IF 4.055
Cheng-bin Gong,Xiao-xiao Ou,Song Liu,Yong-lei Jin,Hai-rong Huang,Qian Tang,Michael Hon-Wah Lam,Cheuk-fai Chow,Qian Tang
This paper reports a molecular imprinting-based fluorescent and solvatochromic multifunctional chemosensor for phthalate esters (PAEs). The multifunctional chemosensor was fabricated through precipitation polymerization using 4-[(1 E )-4-(2-hydroxyphenyl) ethenyl]-1-allylpyridinium bromide (HPEAPB) as the functional monomer and phthalamide-4,4′-dibutyl dimethyl ester (PDDB) as the mimic template. The molecular imprinting-based chemosensor shows specific affinity toward PDDB and dibutyl phthalate (DBP) in ethanol. Of note is that the molecular imprinting-based chemosensor shows turn-off fluorescent response toward PAEs in an ethanol solution with a limit of detection of 2.0 × 10 −6 mol L -1 (0.7 ppm) when HPEAPB is in the protonated form (chemosensor 1), and shows solvatochromic properties, fluorescent enhancement and a colorimetric (from orange to bright yellow) response toward PAEs in an ethanol solution with a limit of detection of 4.0 × 10 −5 mol L -1 by the naked eye when HPEAPB is in the deprotonated form (chemosensor 2). This multifunctional chemosensor is promising for the simple, accurate and low-cost detection of trace PAEs.
研究领域:
分析化学
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环境科学
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材料科学
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产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2018
·Vol. 185
·期 11
·1-10
·
IF 5.705
Zhu Xiang,Wang Jianying,Zhu Yuhua,Jiang Honghao,Tan Di,Xu Ziqiang,Mei Tao,Li Jinhua,Xue Longjian,Wang Xianbao
N,S-co-doped carbon dots (N,S-CDs) were synthesized via a single-step solvothermal process by using sodium lignosulfonate and p-phenylenediamine as carbon/nitrogen/sulfur sources. The N,S-CDs have an average diameter of 2.02 ± 1 nm and display green fluorescence, with excitation/emission peak wavelengths at 380/540 nm for optimal fluorescence. Fluorescence is excitation wavelength-dependent and stable in aqueous salt solutions. The fluorescence of the N,S-CDs is selectively quenched by Fe(III) and Ag(I) ions. These ions can be quantified by fluorometry with a limit of detection of 1.7 μM for Fe(III) ions and 11.6 μM for Ag(I) ions. The N,S-CDs also undergo solvatochromism in that emission is green in water solution but blue in polar organic solvents such as ethanol or N,N-dimethylformamide. The color of fluorescence gradually shifts from green to blue when continuously increasing the fraction of organic solvent in water.
N,S-co-doped carbon dots (N,S-CDs) are synthesized by using sodium lignosulfonate and p-phenylenediamine as C/N/S sources. The N,S-CDs can sensitively detect Fe(III) and Ag(I) ions based on fluorometry, and can be used as a solvatochromic probe.
研究领域:
分析化学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2023
·
IF 4.3
Wei Liu,Zexin Wang,Nannan Chen,Renfu Li,Tong Wu,Jingming Zhou,Yuqiu Ye,Yongbo Wei,Yanbing Ke,Hong Jiang,Lijun Xie
There is growing interest in developing dual-state emission luminogens (DSEgens) in the fluorescent materials community due to their bright emission in both dilute solution and the solid state and potential applications in various areas. In this work, we have developed a new dual-state emission (DSE) luminogen by integrating a benzothiazolium unit into the rofecoxib skeleton, namely 5-(( Z )-4-((( E )-3-methylbenzo[d]thiazol-2( 3H )-ylidene)- amino)benzylidene)-rofecoxib ( p -RBZ ). Importantly, by combining theoretical calculations and experimental investigation, a novel insight into the DSE mechanism of p -RBZ is firstly proposed. The reduced density gradient (RDG) calculation and single X-ray data analysis, both revealed that p -RBZ had strong intramolecular π-π interaction between a ring and d ring, which can limit molecular rotation, reduce the rate of non-radiative transition, and enhance luminous efficiency in solution. Meanwhile, the conformation twist of p -RBZ and the highly restricted intermolecular π-π stacking may permit their bright emission in the solid state from the single-crystal X-ray and Hirshfeld surface analysis. Furthermore, p -RBZ displayed apparent solvatochromism, mechanochromism, and lipid droplets-specific imaging properties. These results implied that DSE-active p -RBZ had the potential to be developed as a mechanical-force sensor and lipid droplets imaging probe.
研究领域:
化学
·
生物学
·
医学
·
材料科学
✓ 已验证
DOI
高影响因子
TALANTA
·
2019
·
IF 4.916
Lifen Cai,Xiangying Sun,Wei He,Ruolan Hu,Bin Liu,Jiangshan Shen
In this paper, a tetrahydro[5]helicene-based imide dye with thienyl group (THID) was studied on its solvatochromism and aggregation-induced emission (AIE) properties by dissolved in various organic solvents. The linear relationship between Stokes shift and aprotic solvent polarity parameter was well fitted with Lippert-Mataga model. Furthermore, Stokes shift also were positively correlated with the normalized molar electronic transition energy, suggested that THID exceptionally depends on solvent polarity for twisted intramolecular charge transfer. In addition, THID demonstrated typical AIE features when adding large amounts of water into good solvent. Meanwhile, it can function as intensity and wavelength-based fluorescence sensor for detecting low-level water content in water soluble solvents , even the low of detection was 0.014 vol% in ACN . Therefore, a simple and highly selective fluorescence analysis for glyceryl monostearate has been established on basis of its AIE property.
研究领域:
化学
·
材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）