Nanoscale
·
2019
·Vol. 11
·期 47
·22890-22898
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IF 6.97
Zihua Wu,Yuling Liang,Linqi Cao,Qing Guo,Suju Jiang,Fangfang Mao,Jiarong Sheng,Qi Xiao
Facile synthesis of high quality gold nanorods (AuNRs) with a tunable size is of great value for applications of AuNRs in various fields and for the study of the growth mechanism of such anisotropic nanostructures. However, limitations usually exist in a specific synthetic protocol. In this work, using 3-aminophenol as the reducing agent, we present a AuNR synthetic strategy with an excellent comprehensive performance, which includes an exceptional monodispersity, a AuNR shape purity of around 99%, a conversion ratio of the gold precursor of about 91%, and an easily tuned longitudinal surface plasmon resonance wavelength ranging from 580 to ∼1050 nm. Studies on the impacts of the experimental parameters including silver ions, gold seeds, reducing agent, and cetyltrimethylammonium bromide (CTAB) revealed a profound recognition of the significant effect of the reductive atmosphere, in synergy with other parameters, in directing the growth and structural evolution of the gold seeds, thus deeply affecting the size, shape yield, monodispersity, and morphology of the final structure. These results could be immensely useful for the application and revelation of the growth mechanism of AuNRs.
研究领域:
纳米材料
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化学合成
·
光学材料
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DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
·
2019
·
IF 5.256
Yuze Xie,Mingwei Wang,Xi Chen,Shufen Wang,Dandan Han,Yehong Han,Hongyuan Yan
A facile and efficient method for the determination of triazine herbicides in tomato samples was developed by employing 3-aminophenol-glyoxylic acid resin microspheres as a solid-phase extraction adsorbent followed by high performance liquid chromatography analysis. These resin microspheres were synthesized by a simple green precipitation polymerization method, and a range of functional groups (hydroxyl, amino, carboxylic group) were introduced through the 3-aminophenol and glyoxylic acid components. The as-prepared resin microspheres were characterized by scanning electron microscopy, Fourier transform infrared spectrometry , and thermal gravimetric analyzer. The resin microspheres exhibited a good adsorption rate, large adsorption amount, and short adsorption equilibrium time (almost in ∼5 min). Under the optimal extraction and determination conditions, a good linearity was obtained in the range of 0.025–7.5 μg g −1 (r 2 ≥ 0.9997) for atraton , ametryn , and prometryn . The limits of detection of atraton, ametryn, and prometryn were 0.57, 0.75, and 1.06 μg kg −1 , respectively. The intra-day and inter-day precisions expressed as relative standard deviations were in the ranges of 1.8–3.2% and 1.7–4.1%, respectively. In addition, the recoveries at three spiked levels ranged from 85.1 to 97.7% with the relative standard deviation ≤ 5.4% (n = 3). This novel method is simple and accurate and has proved to be a reliable alternative method for the determination of triazine herbicides in tomato samples.
研究领域:
分析化学
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环境科学
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DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2019
·
IF 5.399
Yehong Han,Zhiqiang Wang,Jun Jia,Ligai Bai,Haiyan Liu,Shigang Shen,Hongyuan Yan
A method based on solid-phase extraction (SPE) coupled with high-performance liquid chromatography (HPLC) was developed to determine the content of 4-chlorophenoxy acetic acid (PCPA), naphthylacetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) in green bell peppers. A molecularly imprinted 3-aminophenol-glyoxal-urea resin (MIAGUR) was first synthesized as a specific SPE adsorbent, which exhibited special selectivity and multiple adsorption interactions including hydrogen bonding and π-π interactions. The quantities of PCPA, NAA and 2,4-D in green bell peppers from 20 samples scattered throughout Baoding city (Hebei province, China) were determined using the proposed method. The results suggested that the use of PCPA, NAA and 2,4-D in green bell peppers from Baoding’s markets is almost in fair. Moreover, MIAGUR-SPE-HPLC is suitable for the specific simultaneous monitoring of PCPA, NAA, and 2,4-D in green bell peppers and has potential applications in determination of PCPA, NAA, and 2,4-D of other plant products.
研究领域:
分析化学
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食品安全
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2025
·
IF 5.1
Xunzhi Deng,Ze Liao,Jing Lu,Haiou Li,Xianxin Zhu,Yilin Liu,Qinyao Li,Danyi Deng,Chao Huang,Zhoufei Luo
The presence of alkylphenolic residues in vegetables could pose a potential food safety risk for humans. The residues of alkylphenols in bean sprouts have not been reported. Magnetic dispersion solid phase extraction (MD-SPE) followed by ultra performance liquid chromatography-tandem mass spectrometry was developed for detecting alkylphenol residues in sprouts. The Fe 3 O 4 @rGO@poly 3-aminophenol composite was first synthesized and used as an effective and regenerate adsorbent for MD-SPE. This method features minimal use of organic reagents, high extraction efficiency, easy recovery via magnetic separation, and the reusability of the adsorbent. The magnetic composite was characterized using X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. For optimization of the extraction process, the Plackett-Burman factorial design was employed to to fine-tune multiple parameters of MD-SPE. Additionally, the sensitivity of UPLC-MS/MS enabled the precise quantification of alkylphenols in the sprout samples. This analysis yielded high linearities (R 2 > 0.9989) and recoveries (90.4 %–108.5 %) at three different spiked levels. a minimal matrix effect (7.5 %–12.4 %), impressive limits of detection (0.89–13.62 pg/mL), and reliable reproducibility (intra-day: 2.0 %–13.5 %; inter-day: 0.7 %–11.6 %) were obtained. Thus, a new method was successfully employed for analyzing alkylphenolic residues in vegetables samples, making it a valuable tool for ensuring food safety.
研究领域:
食品安全
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分析化学
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环境科学
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DOI
高影响因子
MICROCHIMICA ACTA
·
2011
·Vol. 174
·期 1
·123-130
·
IF 2.578
Li Xinchun,Pan Jianbin,Yang Fan,Feng Jun,Mo Jinyuan,Chen Zuanguang
We report on a simple amperometric detector for use in microchip capillary electrophoresis. A disposable syringe serves as the electrode holder that is fixed at the outlet of the separation channel. A carbon paste electrode is used to detect dopamine (DA) and catechol (CA) after electrophoretic separation. The two model analytes were well separated within 60 s. The response is linear in the concentration range from 4 to 500 μM, and the detection limit is 1.2 μM for DA (S/N = 3:1). The relative standard deviations of the inter-run and inter-electrode peak currents, respectively, are 2.8% and 5.7% for DA, and 3.9% and 6.5% for CA. Favorable column efficiency (expressed by the theoretical plate number which is 5.3 × 104 m -1 for DA) is achieved. The method was successfully applied to the separation and detection of 3-aminophenol (3-AP) in an injection powder containing sodium 4-aminosalicylate. The detection limit of 3-AP is as low as 1.7 μM, which meets the demand of the impurity test. The facile assembly allows convenient replacement of working electrodes and improves the longevity of the microanalytical system.
Voltammetric behaviors of 3-AP and 4-AS at carbon paste electrode (CPE), and microchip electrophoresis-amperometry with CPE for the two analytes.
研究领域:
分析化学
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电化学
·
微流控
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DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 50
·42432-42442
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IF 4.6
Baowang Miao,Guidong Zhu,Shimin Lin,Chi Zhang,Yuze Wang,Dongxun Chen,Yanjie Liang,Chengwei Wang
Photothermal therapy (PTT) is limited by its shallow penetration depth, whereas high-dose radiotherapy (RT) can cause significant side-effects. To address these limitations, synergistic therapies integrating RT with PTT have been proposed and investigated as promising treatment strategies. In this study, multifunctional, magnetic-targeting nanoparticles that exhibit high near-infrared absorption and strong photon attenuation were successfully synthesized for the synergistic PTT-RT treatment of glioma. The platform consists of a Bi2S3 core encapsulated within a carbon shell. The nanoparticles were further doped with Fe3O4 to ensure arrival at the tumor site at an effective concentration to achieve optimal therapeutic outcomes, and to enable preferential aggregation at the intracranial tumor site under the guidance of an external magnetic field. The Bi2S3@C/Fe3O4 nanoparticles showed high biosafety and a significant synergistic therapeutic effect in combined RT and PTT, both in vitro and in vivo. The feasibility of Bi2S3@C/Fe3O4 nanoparticles for glioma treatment was systematically evaluated, providing evidence of the applicability of Bi-based nanomaterials in photothermal radiotherapy.
研究领域:
纳米医学
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肿瘤学
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放射治疗
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光热治疗
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生物医学工程
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DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
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2025
·
IF 12.5
Shaojun Liu,Xiaochan Liu,Guoran Liu,Jiale Niu,Rongshuang Liu,Zhipeng Yuan,Serguei Filatov,Jing Zhang,Xibin Yi
Capacitive deionization (CDI) is widely regarded as a promising water treatment technology, in which electrode materials are crucial for determining the CDI performance. Recently, bacterial cellulose (BC) stands out as an ideal precursor for fabricating CDI electrodes owing to its unique nanofiber network and sustainability. In this work, utilizing BC as both the carbon source and structural matrix, with sodium phytate (SP) being added as a phosphorus source to induce cross-linking, the BC/SP-derived carbon aerogels served as a P-doped skeleton. Following the incorporation of nitrogen-enriched carbon nanospheres (N-CNS) to optimize pore distribution and enhance surface reactivity, a BC-based composite carbon aerogel (BSNCA Y ) was successfully fabricated. By adjusting the N-CNS/SP mass ratio, the optimal BSNCA 1.5 possesses a high specific surface area (3014.22 ± 5.23 m 2 ·g −1 ) and remarkable wettability, thus delivering an impressive desalination capacity of 29.70 mg·g −1 , a rapid salt adsorption rate of 3.31 mg·g −1 ·min −1 , and excellent cycling stability. Besides, density functional theory calculations further reveal that the synergistic effect of N and P doping enhances the electrosorption capacity toward Na + and Cl − ions. Hence, this work offers new insights into the design and synthesis of innovative BC-based composites, thereby demonstrating the viability as electrode materials for energy storage devices.
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PubMed
高影响因子
LUMINESCENCE
·
2025
·Vol. 40
·期 12
·e70386
·
IF 3
Xiaodie Zhang,Xiangjun Xu,Sijing Kang,Shimin Wang,Erjing Wang
Ferric ion plays an important role in various physiological processes and is crucial to human health. Fluorescent sensing of ferric ions based on carbon dots is attracting intensive interests owing to the prominent merits of carbon dots such as easy preparation, high photostability, low toxicity, and high solubility in water. In this paper, one kind of nitrogen-doped carbon dots (CDs-AE) was reported, which exhibited strong fluorescence with emission peaked at 480 nm. Notably, the presence of ferric ions can efficiently quench the photoluminescence of CDs-AE, and the quenching efficiency was as high as 94%. Finally, the quenching mechanism behind was explored and the application of CDs-AE in ferric ion detection in real sample was studied.
研究领域:
分析化学
·
纳米材料
·
荧光传感
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DOI
PubMed
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2025
·
IF 6.3
Wen Jiang,Ying Tian,Xinyu Huang,Xinyi Liao,Jiahui Zhu,Chunyi Li,Rongtai Yu
Background Tetracycline accumulation in nature poses environmental and health risks. This study develops concave hollow double-layer polymers (CHDPs) via modified self-assembly for solar-driven tetracycline degradation and simultaneously produces hydrogen peroxide. Methods CHDPs, synthesized from 3-aminophenol and formaldehyde, contain benzoquinone donor-acceptor moieties. This structure enables photocatalytic hydrogen peroxide generation from water and oxygen, as well as the photocatalytic degradation of tetracycline. Significant findings CHDP’s polymer has a narrow bandgap, and a concave architecture that enhances light harvesting/charge transfer, which achieves -1390.5 % tetracycline conversion at 447 nm/12 W/pH 10/1 mg l -1 via acidic intermediate generation, and simultaneous H 2 O 2 production was 110.3 mg g -1 , and the ability to inhibit the self-decomposition of hydrogen peroxide. The operational stability was >80 % efficiency retention after 4 cycles. CHDPs enable cost-effective pollutant degradation while overcoming infrared-dependent limitations of conventional photocatalysts.
研究领域:
环境化学
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材料科学
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光催化
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污染治理
·
能源转换
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Nana Zhao,Chen Zhou,Qiusheng Yang,Ziqing Li,Ziran Zhang,Jingjing Li,Zhicheng Pan,Mingwang Pan
A persistent challenge in photothermal conversion elastomers (PTCEs) is simultaneously achieving high photothermal conversion efficiency and robust mechanical properties. Herein, an efficient strategy, constructing extended conjugate structure at the interface of matrix and filler, was developed. Specifically, caterpillar-like Janus particles (CJPs), composed of alternating 3-aminophenol-formaldehyde copolymer bulb and SiO 2 bulb, were first synthesized using an oil-water interface growth and assembly method. These CJPs were then integrated into an aqueous polyurethane matrix through imine bond that was formed by the condensation of amine group on the particle and aldehyde group on the matrix. Interestingly, the interfacial imine bonds are playing three roles, i.e. , facilitating uniformly dispersing of the fillers, bridging the benzene rings existing in the matrix and the filler, and endowing the PTCEs with self-repairing properties. Consequently, the obtained PTCEs exhibited both excellent mechanical properties (tensile strength of 29.63 MPa and elongation at break of 1602%) and high photothermal conversion efficiency (86.79%). This synergistic performance enables the PTCEs to act as next-generation solutions for practical applications including photothermal generators and reversible adhesive tapes. In general, this work not only establishes a new application direction for the Janus particles, but also provides a design guideline for high-performance of PTCEs.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Wei Wei,Wenwei Duan,Huiping Lu,Yu Fang,Yanan Han,Fengming Hou
Regulating the motion speed of photothermally driven nanorobots remains a significant challenge, as relying solely on a single thermal gradient often fails to provide sufficient driving force differentials for effective speed-switching. Herein, inspired by the thermo-responsive phase-change behavior of organics, we report a thermal switch-activated variable-speed nanorobot based on an aminophenol-formaldehyde concave asymmetric hollow nanobowl. By co-encapsulating ammonium bicarbonate as a chemical fuel and 1-tetradecanol as a phase change material, the designed nanorobot (denoted as AB/AF@TD) possesses a thermo-activated switch for speed control. Under 1.0 W/cm 2 NIR irradiation, 1-tetradecanol provides an endothermic buffer that limits the photothermal temperature, resulting in a low-speed level driven primarily by self-thermophoresis. Conversely, higher-power NIR irradiation (2.0 W/cm 2 ) triggers the phase transition of 1-tetradecanol, inducing rapid temperature elevation and the subsequent decomposition of ammonium bicarbonate. The generated microbubbles propel the nanorobot to a high-speed level through a synergistic effect with self-thermophoresis. Accordingly, AB/AF@TD exhibits three distinct motion levels containing Brownian motion, low-speed level (5.4 μm/s), and high-speed level (13.5 μm/s). The high-to-low velocity ratio is 2.5, significantly outperforming the 1.4 ratio of the aminophenol-formaldehyde control nanorobot (denoted as APFC). Benefiting from accelerated mass transfer and the chelating and redox activities of surface phenolic hydroxyl and amino groups, AB/AF@TD achieves 95.6% removal of 20 mg/L aqueous Cr(VI) within 30 min, a removal efficiency 1.2 times that of APFC. These results offer implications for the motion control of nanorobots and emphasize their potential in smart environmental remediation. Download: Download high-res image (303KB) Download: Download full-size image
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PubMed
高影响因子
CELLULOSE
·
2026
·
IF 4.6
Sun Yu,Zhu Meng,Xu Yongjian,Yue Xiaopeng
Sound-absorbing materials prepared with plant fibers have received extensive attention and research since noise is an urgent environmental problem that needs to be solved; however, there is still room for improvement in the sound absorption performance and flame retardancy of these materials. This study carried out functional modification on plant fiber, flame-retardant plant fiber (FrSF), and investigated their effects on the sound absorption and flame retardancy properties of biomass sound-absorbing composite (BSC). When the addition of FrSF was 30%, the maximum sound absorption coefficient (α max ) of the BSC using FrSF was 0.97 at 1530 Hz, and the noise reduction coefficient (NRC) was 0.40. Meanwhile, FrSF could improve the BSC’s flame-retardant performance with less addition of flame retardant. The limiting oxygen index (LOI) of BSC using FrSF was 29.9%, and the total heat release (THR) decreased 57.62% compare with the BSC using E-glass fiber. This work has made practical contributions to the functional modification of plant fibers and the development of plant fiber-based functional materials. Graphical abstract
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高影响因子
危险品化学品经营许可证（带存储）