NEW JOURNAL OF CHEMISTRY
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2022
·Vol. 47
·期 2
·828-837
·
IF 3.925
Tiantian Wan,Zulei Zhang,Hailong Wang,Yiwen Yang,Hanxing Yang,Jian Zhang,Yanbo Zeng,Lei Li,Jinchun Li
Chlorogenic acid (CGA), a cis-diol-containing compound, exhibits anti-inflammatory, antiviral, antimicrobial and anti-oxidation properties. Thus, selective determination of CGA in food products is extremely necessary. In this study, a boron affinity magnetic polymer named Fe3O4@SiO2@PIL was synthesized to detect the concentration of CGA in actual fruit samples. The Fe3O4@SiO2@PIL was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and thermogravimetric (TG) analysis. The results showed that the Fe3O4@SiO2@PIL has uniform morphology, good magnetic properties, suitable structure and high stability. The experimental assays showed that the Fe3O4@SiO2@PIL can detect the concentration of CGA within 7 min, and has a good linear relationship with CGA in the concentration range of 0.025–2 μM (R2 = 0.9989) with a detection limit of 10 nM (S/N = 3). Moreover, the Fe3O4@SiO2@PIL exhibited excellent selectivity and can be reused for at least 5 runs, indicating its good stability and reusability. Finally, the Fe3O4@SiO2@PIL was used to selectively separate CGA in real fruit samples with the recovery ranging from 93.4% to 103.0% and the relative standard deviation (RSD) between 0.7% and 5.1%. This study gives a new insight into the utilization of magnetic materials by grafting boric acid functionalized ionic liquids for specific and rapid detection of natural cis-diol-containing compounds.
研究领域:
分析化学
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食品科学
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产品关联
DOI
高影响因子
OPTICS AND LASER TECHNOLOGY
·
2025
·
IF 5
Jiahao Li,Yong Lin,Dong Zhou,Shuo Zhang,Wei Yuan,Wenming Su,Xiuqing Meng,Xinzhou Wu,Congcong Chi,Desheng Kong,Zheng Cui
Due to their high contrast, low cost, simple preparation and low energy consumption, alternative current electroluminescence (ACEL) devices are ideal for information display in wearable electronic systems. However, ACEL displays require high driving voltage normally above 100 V. Achieving high brightness at human-safety driving voltage in ACEL devices remains a challenge. In this study a new field enhancement strategy has been developed by doping the bottom dielectric layer with materials that have a high permittivity. In this way, the electric field can be concentrated in the luminescent layer and the charge separation of the ZnS/Cu powders can be improved, which helps to lower the driving voltage of ACEL while achieving high brightness of light emission. A high brightness of 175.2 cd/m 2 was obtained at the human-safety voltage of 35 V, The brightness can reach 1448.3 cd/m 2 at 110 V. The field enhancement strategy can be implemented by simple screen-printing process and the ACEL can be made on a fabric substrate with mechanical cyclic durability. As a demonstrator of human wearable display, the ACEL was integrated with a temperature sensing system to detect and display human body temperature in real time in both static and dynamic modes.
研究领域:
材料科学
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电子工程
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2016
·
IF 4.758
Beibei Mao,Fei Qu,Shuyun Zhu,Jinmao You
Herein, utilizing fluorescent Ag nanoclusters (Ag NCs) capped by polyethyleneimine (PEI) with different molecular weights, we constructed a novel Ag NCs-Cu 2+ sensing system based on fluorescence turn-on strategy for trace detection of quinolones, including nalidixic acid, cinoxacin, ciprofloxacin/ofloxacin, and moxifloxacin; these were the representatives of four generations of quinolone antibacterial drugs. The fluorescence of Ag NCs could be efficiently quenched by Cu 2+ , while with the addition of quinolones, the fluorescence of this system recovered rapidly. This protocol exhibited excellent sensitivities to these five quinolones. For instance, the linear ranges were from 1 to 100 nM for nalidixic acid with limit of detection (LOD) 0.47 nM, from 1 to 80 nM for cinoxacin with LOD 0.43 nM, from 0.1 to 120 nM for ciprofloxacin with LOD 38 pM, from 0.1 to 80 nM for ofloxacin with LOD 49 pM, and from 0.1 to 120 nM for moxifloxacin with LOD 48 pM, respectively, revealing that this approach showed low detection limits and wide linear ranges. Benefiting from the high sensitivity, the satisfactory recoveries were obtained for trace detection of quinolones in real samples, such as tablets, human urine and serum.
研究领域:
分析化学
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生物医学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 19
·8701-8713
·
IF 4.682
Gao Yufu,Wu Shaohua,Li Chuncheng,Xiao Yaonan,Liu Jiajian,Zhang Bo
Poly(p-phenylene benzobisoxazole) (PBO) fibre-based specialty paper has become a promising candidate for high-performance insulating materials due to the remarkable properties of PBO fibres. However, the porous structure and poor interfacial interaction of PBO paper seriously weaken its mechanical strength and greatly limit its practical application. Herein, proposed for the first time, a homogeneous reinforcement strategy is developed to regulate the microstructure of PBO paper and efficiently enhance its overall properties. For this reason, flexible ortho-hydroxy polyamic acid (HPAA) was first synthesized and used to impregnate PBO paper. Subsequently, HPAA was thermally converted into a benzoxazole-containing resin, manifesting excellent interfacial compatibility with PBO paper. As a result, the compact structure and solid interface endow the composite paper with impressive performance. The tensile strength, modulus, and electrical breakdown strength of the composite paper are 116.86 MPa, 5.47 GPa, and 63.7 kV mm −1 , respectively, increasing by 33.1, 8.1, and 1.1 times compared with those parameters of the original paper (3.43 MPa, 0.60 GPa, and 30.5 kV mm −1 ). Moreover, the composite paper also exhibits an ultra-low dielectric constant and loss tangent (1.6 and 0.004 at 10 6 Hz, respectively), as well as superhigh thermal stability (maximum decomposition temperature, T max ≈ 600 °C) due to the elaborate design of the structure. Thus, the mechanical strength has been successfully integrated with the outstanding insulation and thermal properties, rendering the lightweight PBO composite paper promising in the field of high-temperature and high-voltage electrical insulation. Graphical abstract
研究领域:
材料科学
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电气工程
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Menglin Ye,Chen Yang,Aolin Wang,Gengli Chen,Dongming Yuan,Wenli Zhou
Mn4+-activated fluoride red phosphors exhibit excellent luminescence properties. However, a persistent technical challenge lies in their poor moisture resistance. Current strategies primarily focus on surface modifications to effectively shield the [MnF6]2– species from water molecules while neglecting the underlying structure of the fluoride matrix. In this study, we introduce Si4+ and Ge4+ ions into the K2TiF6:Mn4+ crystal to create covalent fluoride solid solutions, namely, K2Ti1–xSixF6:Mn4+ and K2Ti1–yGeyF6:Mn4+, through crystal reconstruction. The findings reveal that the incorporation of Si4+ leads to increased particle size, enhanced luminescence intensity (by 40%), and improved moisture resistance. Furthermore, after undergoing 1000 h of aging at high temperature and high humidity conditions, the white LED featuring the K2Ti0.97Si0.03F6:Mn4+ phosphor demonstrates remarkable durability by retaining 90% of its initial luminous efficacy. This performance surpasses that of the device utilizing the K2TiF6:Mn4+ phosphor, which only retains 74% of its original efficacy. The crystal reconstruction method and covalent enhancement strategy proposed in this work contribute to enhancing the luminescence efficiency and moisture resistance of fluoride phosphors, thereby offering new insights for advancing the development of high-efficiency and highly stable white light LED devices.
研究领域:
材料科学
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光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Guipeng Quan,Yunhuan Wu,Bao Gong,Xudong Liu,Yujie Liu,Wenhua Wang,Yuhui Ao,Linghan Xiao,Yujing Liu
Inspired by organic–inorganic soft and hard components found in mollusk shells, this study utilized phytic acid (PA) and MXene (Ti 3 C 2 ) to create “soft-hard” structure on the surface of carbon fiber (CF) through the bio-interfacial cross-linking reinforcement (BICR) strategy. This strategy not only increased the chemical reaction activity on the fibre surface, but also enlarged the interphase area of the fibres, which facilitated the formation of a strong physical riveting interaction among the fibres and substrate. Compared with the untreated CF composites, the flexural strength, flexural modulus, interlaminar shear strength (ILSS), tensile strength and interfacial shear strength (IFSS) of the CF/PEI/PA/MXene composites were increased by 51.4%, 62.5%, 63.0%, 74.9%, and 45.8%, respectively. These positive results were attributed to the large number of reactive functional groups on the PA myo-inositol ring, which increased the chemical reactivity of the fiber surface. Additionally, the MXene assembled on the fibre surface enhanced the adhesion and mechanical interlocking between the fibre and resin. This work provides an advanced route to fabricate CF composites with excellent mechanical properties.
研究领域:
材料科学
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2024
·
IF 12.7
Linmin Xia,Jianyu Wu,Han Wang,Zhijian Huang,Rilong Yang,Xuexia Zhang,Fei Guo,Jiqing Li,Yan Yu
Developing high-performance plant fiber-reinforced thermoplastic polymer composites using environmentally friendly and cost-effective methods remains a significant challenge. In this study, we present a novel micro-nano strategy for producing robust short bamboo fibers (BFs) reinforced polypropylene (PP) composites (SBFPCs) without the need for chemical modification. Our approach involves the utilization of purified short micron BFs, which is surface-coated with holocellulose nanofibers (HNFs) extracted from bamboo parenchyma cells (BP). Through conventional injection processing, the resulting SBFPCs demonstrate remarkable mechanical enhancements with just a 0.2 wt% addition of HNFs compared to control samples. Notably, the mechanical properties of our SBFPCs surpass those of most reported short plant fiber-reinforced thermoplastic composites. The superior mechanical performance of our SBFPCs can be attributed to several factors, including the use of purified micron BFs with optimal aspect ratios as the primary reinforcement phase, enhanced interfacial mechanical interlocking between BFs and the PP matrix facilitated by the addition of HNFs, and the potential dispersion of HNFs within the PP matrix at submicron or nanoscale as a secondary reinforcement phase. This study highlights the promising application of SBFPCs in engineering areas with stringent mechanical requirements.
研究领域:
材料科学
·
植物纤维复合材料
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Xue Bai,Yanzhi Sun,Jiahong Xie,Rui He,Lihui Zhang,Junqing Pan
Carbothermal reduction is considered to be an efficient and cost-effective method for the recovery of cathodes in spent lithium-ion batteries (S-LIBs). However, the conventional direct mixed roasting with high reaction temperature, slow solid phase reaction kinetics and uncontrollable reduction process greatly hinders the lithium recovery efficiency and carbon emission reduction. Here, we propose a dual super-liquid film reactors (SLFR) enhancement strategy to achieve nanoscale mixing of spent anode and cathode materials to improve the kinetics of the roasting and water leaching processes. This strategy reduces the reaction temperature and time to 550°C and 1 h, improves the mass transfer efficiency of the solid phase reaction and aqueous leaching, precisely reduces LCO to CoO instead of Co metal, increases the lithium leaching rate from 85.6 % to 98.6 %, shortens the leaching time from 60 min to 40 s, and reduces the carbon dosage from 5 % to the theoretical value of 3 %, achieving zero carbon emission from the reduction process. This work provides a new general strategy for efficient, clean and precise carbothermal reduction of spent cathode materials for selective lithium extraction, and demonstrates the scalability in industrial applications.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2023
·Vol. 20
·期 11
·2306638
·
IF 13.3
Yuheng Lv,Qin Fu,Yi Xu,Peng Shi
The achievement of rapid multiplexed protein imaging is limited by the use of stimulating reagents, extensive incubating and washing steps, and the low fluorescence intensity of targets. In this study, sequentially-activated DNA tags are developed and combined them with primary antibodies using signal enhancement strategies to create sequentially-activated antibodies (SAAs). These SAAs enable rapid, wash-free sequential imaging of different protein targets. The samples are pre-processed to label all targets of interest with SAAs simultaneously, and the signal is turned ON for only one target in each stage. The sequential imaging of multiple targets is achieved through wash-free strand displacement reactions that exhibit rapid kinetics with t 1/2 < 10 s in a cellular context. Remarkably, this method successfully demonstrates sequential imaging of nine different protein targets within just a few minutes. This all-in-one platform for multiplexed protein imaging holds great promise for diverse applications in immunofluorescence imaging.
研究领域:
生物化学
·
分子生物学
·
免疫学
✓ 已验证
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2022
·
IF 12.545
Haomin Fu,Zhiyuan Xu,Tianrui Liu,Jianping Lei
Coreactant electrochemiluminescence (ECL) is one of the most popular pathways in commercial analysis, which can provide simplicity and convenience for getting intense ECL emission. However, the low efficiency of intermolecular electron transfer could weaken ECL intensity. In this work, we developed an enhanced ECL strategy through in situ coordination interactions between metal-organic framework emitters and coreactants. First, a metal-organic framework (MOF) emitter was synthesized with 1,1,2,2-tetrakis(4-(pyridin-4-yl)phenyl)ethane (TPPE) as aggregation-induced emission linkers and Zn as nodes. Interestingly, compared to TPPE ligand, the resulted MOF nanoemitters demonstrated 49.5 folds enhancement of ECL emission in the presence of 1,4-diazabicyclo[2.2.2]octane (DABCO) as the coreactant. More significantly, different from the constant ECL intensity using TPrA coreactant, DABCO exhibited time-dependent ECL intensity due to the intrareticular electron transfer through coordination interaction between DABCO and Zn 2+ , which was confirmed by X-ray photoelectron spectroscopy and Fourier transform infrared spectral experiments. The enhanced ECL was then applied to construct a sensitive ECL method to detect dopamine in serum samples. The coordination interaction between emitters and coreactants not only provides a universal way to enhance ECL, but also expands the applications of coreactant ECL system in convenience route.
研究领域:
分析化学
·
生物传感
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2024
·
IF 15.8
Feng Jiang,Jian Wang,Zun Ren,Yujie Hu,Boyong Wang,Mingzhang Li,Jinlong Yu,Jin Tang,Geyong Guo,Yingsheng Cheng,Pei Han,Hao Shen
The clinical treatment efficacy for implant-associated infections (IAIs), particularly those caused by Methicillin-resistant Staphylococcus aureus (MRSA), remains unsatisfactory, primarily due to the formation of biofilm barriers and the resulting immunosuppressive microenvironment, leading to the chronicity and recurrence of IAIs. To address this challenge, we propose a light-induced immune enhancement strategy, synthesizing BSA@MnO2@Ce6@Van (BMCV). The BMCV exhibits precise targeting and adhesion to the S. aureus biofilm-infected region, coupled with its capacity to catalyze oxygen generation from H2O2 in the hypoxic and acidic biofilm microenvironment (BME), promoting oxygen-dependent photodynamic therapy efficacy while ensuring continuous release of manganese ions. Notably, targeted BMCV can penetrate biofilms, producing ROS that degrade extracellular DNA, disrupting the biofilm structure and impairing its barrier function, making it vulnerable to infiltration and elimination by the immune system. Furthermore, light-induced reactive oxygen species (ROS) around the biofilm can lyse S. aureus, triggering bacterium-like immunogenic cell death (ICD), releasing abundant immune costimulatory factors, facilitating the recognition and maturation of antigen-presenting cells (APCs), and activating adaptive immunity. Additionally, manganese ions in the BME act as immunoadjuvants, further amplifying macrophage-mediated innate and adaptive immune responses and reversing the immunologically cold BME to an immunologically hot BME. We prove that our synthesized BMCV elicits a robust adaptive immune response in vivo, effectively clearing primary IAIs and inducing long-term immune memory to prevent recurrence. Our study introduces a potent light-induced immunomodulatory nanoplatform capable of reversing the biofilm-induced immunosuppressive microenvironment and disrupting biofilm-mediated protective barriers, offering a promising immunotherapeutic strategy for addressing challenging S. aureus IAIs.
研究领域:
医学
·
免疫学
·
纳米医学
·
微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DYES AND PIGMENTS
·
2019
·
IF 4.018
Muhammad Sohail Haroone,Yuehua Hu,Ping Zhang,Ruili Ma,Xiaorang Zhang,Qari Muhammad Kaleem,Muhammad Bashir Khan,Jun Lu
Nucleic acids , the hereditary material of living beings, perform a vital role in major life activities including growth, heredity, and variation. The genetic information is coded in specific nitrogenous bases , which are the key players in genetic transformation and identification of hereditary diseases. Telomeres are specialized DNA structures present at the end of eukaryotic chromosomes, consisting of repetitive non-transcribed sequences (TTAGGG) and some binding proteins . They protect the chromosomal ends from sticking to each other, and play a key role in the maintenance of genomic integrity. Currently, a number of methods are reported for nucleic acids and telomeres detection but they are not easy going. Therefore, development of sensitive and fast DNA-biosensors to measure the nucleic acids and telomeres sequences is of great importance. This paper describes a systematic study on the preparation of simple ultrathin films (UTFs) composite of fluorescent dye 4′,6-diamidino-2-phenylindole (DAPI), having binding properties in the minor groove of AT-rich DNA segments, blending with single-stranded DNA (ssDNA) and incorporation into layered double hydroxides (LDH) nanosheets using layer-by-layer self-assembly method. The resulting UTFs exhibits excellent sensitivity, selectivity and reversibility for long complementary ssDNA sequence on the basis of DNA hybridization and fluorescence enhancement strategy. The dynamic range was 3–20 μg/mL with a detection limit of 20 μg/mL. This new (ssDNA @DAPI/LDHs) n UTFs, could be an efficient hybrid composite with potential applications in the field of bioluminescent sensoring materials.
研究领域:
生物化学
·
分子生物学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）