Journal of Materials Chemistry C
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2025
·
IF 5.1
Chang Zhang,Xin Zhang,Wei Wang,Hao Xue,Qian He,Fenglin Li,Xiaoli Wang,Qinghui Jin,Kun Zhou,Jiawen Jian
This paper presents an ammonia (NH3) fluorescent sensor based on the MAPbBr3 perovskite and the multifunctional organic material (R/S)-OBN-tCz. The incorporation of (R/S)-OBN-tCz enhances the sensor's photoluminescence (PL) intensity through Förster resonance energy transfer (FRET) and passivation effects, which consequently improves the sensitivity of the gas sensor. The MAPbBr3&(R/S)-OBN-tCz@PMMA nanofibers fabricated via electrospinning technology not only increase the specific surface area effectively, which is crucial for sensitivity improvement, but also strengthen the stability of the perovskite material under an air atmosphere. The experimental results demonstrate that the sensor maintains stable PL performance for up to 30 days in air and over 10 hours in water, while exhibiting rapid and reversible fluorescence response to NH3.
研究领域:
材料科学
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化学传感
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DOI
高影响因子
MACROMOLECULAR RAPID COMMUNICATIONS
·
2023
·Vol. 44
·期 13
·2300097
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IF 4.6
Yayuan Liu,Fuyue Tian,Jing Hu,Nanying Ning,Bing Yu,Ming Tian
Intelligent fluorescent coatings have received widespread attention in the encryption technique field such as anti-counterfeit, while the traditional fluorescent coatings are easy to be damaged by external force. In this study, the fluorescent and self-healing anti-counterfeit coatings are prepared after rational molecular design. Two polymers containing fluorescent groups, including polyurethane containing the anthracene (AN) side group and polyimide containing the naphthalenediimide (NDI) structure are synthesized to realize multiple color changes with fluorescence through simply blending. Due to the overlapping fluorescence spectra of the groups, enabling the fluorescence resonance energy transfer effect (FRET), the coating with different group ratios exhibits tunable fluorescence under the same excitation light, providing diverse patterns. Moreover, due to the reversible photo-crosslinking and thermal de-dimerization properties of anthracene, the recording, erasure, and rewriting of the surface pattern can be realized, and the fluorescent anti-counterfeit coatings exhibit excellent self-healing properties after cross-linking due to the FRET effect, which solves the problem of poor healing and ensures the stability and integrity. The fluorescent coating with cross-linked structure and self-healing behavior based on the FRET effect greatly expands the functional applications of traditional polyurethane materials.
研究领域:
材料科学
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光学
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化学工程
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DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2024
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IF 4.3
Yixuan Yao,Fudong Zeng,Jinli Ma,Liangqiang Wu,Shuo Xing,Haiqin Yang,Yapeng Li,Jianshi Du,Qingbiao Yang,Yaoxian Li
As the second most abundant transition metal element in the human body, zinc ions play an important role in the normal growth and development of the human body. We have successfully synthesized a near-infrared fluorescent probe with FRET effect for the detection of Zn 2+ . Probe DR6G has good selectivity and anti-interference ability for Zn 2+ . When Zn 2+ is added to the probe DR6G solution, it responds completely within seconds, releasing red fluorescence with a detection limit of 2.02 × 10 −8 M. As the main product of ATP hydrolysis, PPi is indispensable in various metabolic activities in cells and the human body. Due to the strong binding ability of Zn 2+ and PPi, it is easy to form ZnPPi precipitation, so we added PPi to the solution to complete the Zn 2+ detection, and realized the continuous detection of PPi, and the detection limit was 2.06 × 10 −8 M. Since Zn 2+ and PPi play an important role in vivo, it is of great practical significance to design and synthesize a fluorescent probe that can continuously detect Zn 2+ and PPi. Biological experiments have shown that the probe DR6G has low cytotoxicity and can complete the detection of exogenous Zn 2+ and PPi in cells and living mice in vitro. Bacterial experiments have shown that the DR6G probe also has certain research value in the field of environmental monitoring and microbiology. Due to the constant variation of the fluorescence signals of Zn 2+ and PPi during detection, we designed the logic gate program. In practical applications, the probe DR6G can quantitatively detect Zn 2+ in zinc-containing oral liquids and qualitatively detect PPi in toothpaste.
研究领域:
生物化学
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分析化学
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医学
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环境科学
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DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
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2018
·Vol. 43
·期 3
·1424-1430
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IF 3.201
Jun-Tao Cao,Wen-Sheng Zhang,Hui Wang,Shu-Hui Ma,Yan-Ming Liu
A novel fluorescence (FL) immunosensor for prostate-specific antigen (PSA) detection was developed based on the Förster resonance energy transfer (FRET) between nitrogen and sulfur co-doped carbon dot functionalized silica nanospheres (Si/NS-CDs) and Au@Ag NPs. The strategy utilized the PSA primary antibody labeled luminescent Si/NS-CDs as donors and PSA secondary antibody labeled Au@Ag NPs as acceptors. In the presence of PSA, the bio-affinity of the antigen and antibody caused the Si/NS-CDs and Au@Ag NPs to approach at a close enough distance for the FL intensity of the Si/NS-CDs to decline owing to the FRET effect. By virtue of the excellent optical properties of the Si/NS-CDs nanoprobe, the quantitative analysis of PSA has been successfully realized using both FL spectroscopy and a naked-eye readout. The fluorometric results present the desirable analytical performance for PSA detection in the range from 5.0 pg mL−1 to 10 ng mL−1 with a detection limit of 0.95 pg mL−1 (S/N = 3). Moreover, satisfactory results for the determination of the PSA target in samples of human serum were obtained, showing the great promise of the method for application in biochemical analysis.
研究领域:
生物化学
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医学诊断
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纳米技术
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DOI
高影响因子
DYES AND PIGMENTS
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2021
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IF 4.889
Rongqiao Wang,Shibing Chen,Qiaoru Chen,Hongyu Guo,Fafu Yang
abstract Porphyrin with circularly polarized luminescence (CPL) in aggregated state was seldom presented due to the strong aggregation-caused quenching (ACQ) effect at aggregation. This work designed and synthesized a novel porphyrin derivative ( CPL-P ) with good CPL behaviour in aggregated states based on the strong AIE-FRET effect and good chirality transfer of liquid crystalline porphyrin, which was constructed by using porphyrin unit as core with four AIE cyanostilbene groups bearing peripheral chiral alkyl chains. CPL-P exhibited orderly hexagonal columnar mesophase between 62.5 °C and 113.2 °C. It displayed excellent fluorescence emission at 640–760 nm in aggregated states due to the AIE-FRET effect between cyanostilbene unit and porphyrin moiety. Moreover, CPL-P showed the strong circular dichroism and CPL properties in aggregated states based on the effective chiral transfer of the spiral liquid crystalline self-assembly. The |g lum | value for mesophase attained 6.6 × 10 −3 based on the combining effect of AIE-FRET and chiral transfer. This research supplied a new strategy for transferring typical achiral porphyrin with ACQ effect to luminescent molecule with good CPL behaviour in aggregated state.
研究领域:
化学
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材料科学
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DOI
高影响因子
ISRAEL JOURNAL OF CHEMISTRY
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2015
·Vol. 56
·期 4
·242-248
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IF 2.221
Junwei Zhao,Jian Wu,Junfei Xue,Qiannan Zhu,Weihai Ni
Graphical Colloidal superparticles (SPs) are nanoparticle (NP) assemblies in the form of colloidal particles. Assembling nanoscopic objects into mesoscopic or macroscopic composite architectures allows for the bottom-up fabrication of functional nanomaterials. In this study, a method for single-step self-assembly synthesis of Au/NaYF 4 : Yb,Er SPs was developed using oil-in-water (O/W) microemulsions to simultaneously encapsulate gold nanoparticles (AuNPs) and NaYF 4 : Yb,Er upconversion nanoparticles (UCNPs) via evaporation at room temperature. The synthesized Au/NaYF 4 : Yb,Er SPs possess good dispersibility and stability. When the number of AuNPs added is increased, the SPs exhibit decreased upconversion luminescence, which can be ascribed to the Förster resonance energy transfer (FRET) from the NaYF 4 : Yb,Er UCNPs to the AuNPs. Time-resolved measurements of the green emission further confirm the existence of a new decay route corresponding to the FRET process. Our research provides a facile and versatile strategy for the synthesis of novel multifunctional nanocomposites with tunable upconversion luminescence properties, which can be of great significance in biological applications.
研究领域:
材料科学
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纳米技术
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光学
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生物医学工程
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DOI
高影响因子
ANALYST
·
2023
·Vol. 148
·期 20
·5152-5156
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IF 4.2
Shiyong Chen,Jie Wang,Zhikun Shang,Yun Ding,Aiguo Hu
A fluorescent sensor array has been developed based on conjugated polymers (CPs) having six different skeletons for the detection of tetracyclines (TCs), which are known as environmental pollutants. CPs were synthesized from confined nanoreactors in a controlled manner. The fluorescent response occurs through the fluorescence resonance energy transfer (FRET) effect. By utilizing linear discriminant analysis (LDA), effective differentiation of TCs was accomplished with a very low detection concentration (66 nM). Moreover, the sensor array exhibited a highly sensitive ability to quantitatively distinguish different concentrations of TCs. Finally, the sensor array's potential for detecting TCs in aqueous solutions has been successfully demonstrated, widening its applications in practical environments. With simple preparation process, a low cost of detection and high sensitivity, the experimental results indicate that the CP-based sensor array is a promising platform for the sensitive and quantitative detection of TCs, and provides a good reference for future scientific research.
研究领域:
环境科学
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分析化学
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DOI
PubMed
高影响因子
TALANTA
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2024
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IF 5.6
Conglin Guo,Qu Tang,Jige Yuan,Shijie Li,Xiaoxiao Yang,Yuechen Li,Xiaobo Zhou,Haiwei Ji,Yuling Qin,Li Wu
The accurate discrimination of bacterial infection is imperative for precise clinical diagnosis and treatment. Here, this work presents a simplified sensor array utilizing “All-in-One” Pdots for efficient discrimination of diverse bacterial samples. The “All-in-One” Pdots sensor (AOPS) were synthesized using three components that exhibit fluorescence resonance energy transfer (FRET) effect, facilitating the efficient integration of multiple discrimination channels to generate specific fluorescence response patterns through a single detection under single-wavelength excitation. Additionally, machine learning techniques were employed to visually represent the fluorescence response patterns of AOPS upon exposure to bacterial metabolites derived from diverse bacterial species. The as-prepared sensor platform demonstrated excellent performance in analyzing eight common bacteria, drug-resistant strains, mixed bacterial samples, bacterial biofilms and real samples, presenting significant potential in the identification of complex samples for bacterial analysis.
研究领域:
生物传感
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医学诊断
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微生物学
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DOI
PubMed
高影响因子
MICROCHIMICA ACTA
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2017
·Vol. 184
·期 9
·3513-3519
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IF 4.58
Huang Yicun,Yan Fanyong,Xu Jinxia,Bian Yuyao,Zhang Ruiqi,Wang Jie,Zhou Xuguang
The authors describe the synthesis of a two-dimensional organic-inorganic perovskite of the type NH 3 (CH 2 ) 10 NH 3 )PbBr 4 by a fast precipitation method. The resulting powder under photoecitation at 270 nm exhibits yellow luminescence (peaking at 550 nm) in DMSO/water mixtures if the ratio is bigger than 4/6. On addition of Hg(II) and a rhodamine spirolactam, ring opening occurs and colorimetric and fluorescent responses can be seen. Specifically, the emission at 550 nm gradually decreases and a new emission peak appears at 585 nm (corresponding to the emission peak of RBEA-Hg(II) complex) while the color of the solution gradually turns to pink under visible light. The emission peak of the modified perovskite overlaps the 585 nm absorption of rhodamine B, and this results in a FRET effect whose Förster radius (donor-acceptor distance) is calculated from decay time data to be 10.4 Å. Based on these findings, a FRET-based assay for Hg(II) was worked that has a 2.4 μM detection limit.
In DMSO/H 2 O = 1/9 mixed solution, energy transfer from NH 3 (CH 2 ) 10 NH 3 )PbBr 4 (C 10 PbBrPE) to rhodamine B occurred. Fluorescence resonance energy transfer (FRET) process is available by rhodamine B ethylenediamine and C 10 PbBrPE for detection of Hg(II).
研究领域:
材料科学
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分析化学
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环境科学
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高影响因子
Soft Matter
·
2019
·Vol. 15
·期 41
·8329-8337
·
IF 3.399
Hongyu Guo,Sining Zheng,Shibin Chen,Chenyang Han,Fafu Yang
Porphyrins are good near-infrared fluorescent materials, but the strong self-assembly stacking resulted in the aggregation-caused quenching (ACQ) effect, limiting their emissive performance in aggregated states. In this work, a novel diphenylacrylonitrile–porphyrin derivative with multiple polyglycol chains on the periphery was designed and synthesized as an excellent near-infrared-emissive liquid crystalline material in both solution and aggregated states, which was first observed for porphyrin liquid crystals. It exhibited a high self-assembly ability with the ordered hexagonal columnar mesophase between 70 and 120 °C approximately. The strong AIE-FRET effect was produced based on the overlap of the emission wavelength of diphenylacrylonitrile and the absorption wavelength of the porphyrin, resulting in the excellent near-infrared emission in both solution and aggregated states. The pseudo Stokes shift was as large as 210 nm and the fluorescence quantum yield reached 0.12 in the solid state. Moreover, this porphyrin liquid crystal displayed low biotoxicity and excellent fluorescence bio-imaging ability in living cells, opening a new application prospect for porphyrin liquid crystalline materials.
研究领域:
材料科学
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生物学
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化学
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DOI
PubMed
高影响因子
JOURNAL OF FLUORESCENCE
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2025
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IF 3.1
Chen Ling,Shao Keman,Xu Jiajia,Wang Xiwen,Huang Zhenwei,Lin Zhengzhong
Four rare-earth complexes were prepared using Eu³⁺ and Tb³⁺ as central rare-earth ions and benzoic acid, furoic acid, α-thenoyltrifluoroacetone, and phenanthroline as organic ligands, and a four-channel fluorescent sensor array was constructed for the identification of triphenylmethane drugs. The four sensing units have different degrees of fluorescence response to six triphenylmethane drugs. The fluorescence quenching of Eu(III) complex by malachite green and Tb(III) complex by methyl violet were confirmed to be the FRET effect. After five parallel experiments, a 4 × 6 × 5 fluorescence data matrix was obtained, and the linear discriminant method were used to distinguish six triphenylmethane drugs at 0.1, 1.0, and 10 µmol L⁻¹ and mixed triphenylmethane drugs at 1.0 µmol L⁻¹ with an accuracy rate of 100%. The array achieved the identification of triphenylmethane drugs in fish samples with accuracy rate of 97.4%.
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PubMed
高影响因子
DYES AND PIGMENTS
·
2017
·
IF 3.473
Mingguang Zhu,Youzhen Zhuo,Kaicong Cai,Hongyu Guo,Fafu Yang
A novel perylene liquid crystal with diphenylacrylonitrile groups on 1,7-bay positions was synthesized in high yield. This highly decorated perylene bisimide showed the ordered hexagonal columnar liquid crystalline behaviour between 124.9 and 189.5 °C. Upon excitation of 480 nm, an attenuation of fluorescent intensity was observed with the increase of water fraction in THF/H 2 O mixtures. However, the fluorescence intensity enhanced dramatically and attained a maximum value at water fraction of 40% in THF/H 2 O systems when excited at 330 nm. The fluorescence intensity increased by 10 times and the pseudo Stokes shift achieved 251 nm. These phenomena were well elucidated by the AIE and FRET effect, which were supported by the investigation of fluorescence quantum yield and fluorescence lifetime .
研究领域:
材料科学
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化学
·
光学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）