NEW JOURNAL OF CHEMISTRY
·
2025
·Vol. 49
·期 9
·3688-3695
·
IF 2.5
Zuohui Cheng,Huijuan Duan,Jiaxiu Jing,Jinzhong Zhao,Yongqiang Xue,Yuantao Wang,Lingnan Hu,Yuebo Yang
The special properties of nanoparticles significantly differ from those of their corresponding bulk substances, which are determined on the basis of their interfacial thermodynamic properties. It is well known that the interfacial thermodynamic properties of nanomaterials are related to their morphology and particle size. It has been reported in the literature that cubic nanoparticles exhibit excellent properties, but the quantitative influence of particle size regularities on the interfacial thermodynamic properties of cubic nanoparticles has not been reported previously. In this paper, theoretically, the relational expressions of the interfacial thermodynamic properties and particle sizes of cubic nanoparticles were derived; additionally, an electrochemical method to measure the interfacial thermodynamic properties of cubic nanoparticles was proposed. Experimentally, cubic In2O3 nanoparticles were taken as a system, and the electrode potential and temperature coefficient of the cubic In2O3 nanoparticles with different particle sizes were measured at different temperatures. In addition, the interfacial thermodynamic properties of the cubic In2O3 nanoparticles were calculated. Results show that the interfacial electrode potential, interfacial molar Gibbs energy, interfacial molar enthalpy, interfacial molar entropy and interfacial molar internal energy increase with a decrease in the side length of the cubic In2O3 nanoparticles. When the side length exceeds 20 nm, these physical quantities are linearly related to the reciprocal of the mean side length, and the experimental results are in good agreement with theoretical predictions. Results obtained in the study can quantitatively describe the relationship between the interfacial thermodynamic properties and the side length of the cubic nanoparticles as well as can provide significant insights for the research and application of cubic nanoparticles.
研究领域:
材料科学
·
纳米科技
·
物理化学
·
无机化学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Huan Chen,Caijun Zou,Daguang Li,Dan Zhao,Xuesong Zhai
Lanthanide-doped sodium rare-earth tetrafluoride (NaREF 4 :Ln) nanocrystals with small sizes (below 20 nm) have shown great potential in biomedical applications, but their low luminescence efficiency has limited practical use. Here, we report the synthesis and characterization of small-sized α-NaYF 4 /transition interface layers (TIL)/β-NaLuF 4 :Yb,Er slow-phase-transition nanoparticles (SPTNPs) using a combined cation exchange and epitaxial growth strategy. These SPTNPs feature a continuous lattice evolution from α-phase core to β-phase shell, enhancing upconversion luminescence (UCL) intensity by 23.57 times compared to traditional UCNPs, with violet emission enhanced by up to 70.7 times. The absolute quantum yields reached 2.36 % for SPTNPs and 3.44 % for SPTNPs with an inert shell. We verified that the phase transition was driven by strain energy accumulation within the TIL, and demonstrated that the crystallinity of the α-core significantly impacted the phase transition of the shell. Eu³ ⁺ ions were used as structural probes to investigate the lattice environment evolution during SPTNPs growth, and the intermixing between the core and shell of the SPTNPs was further quantified. This work provides new insights into designing rare-earth-doped nanomaterials for biomedical and sensing applications.
研究领域:
纳米材料
·
材料科学
·
发光材料
·
生物医学工程
·
无机化学
·
固体物理
✓ 已验证
产品关联
DOI
高影响因子
Advanced Energy Materials
·
2023
·Vol. 14
·期 10
·2303473
·
IF 27.8
Heyang Chen,Chenlu Shao,Shaoji Huang,Zhiqiang Gao,Haoran Huang,Zhenyu Pan,Kunpeng Zhao,Pengfei Qiu,Tian-Ran Wei,Xun Shi
The discovery of ductile Ag 2 (S, Se, Te) materials opens a new avenue toward high-performance flexible/hetero-shaped thermoelectrics. Specifically, the cubic-structured materials are quite attractive by combining remarkable plasticity, decent thermoelectric figure of merit ( zT ), and no phase transition above room temperature. However, such materials are quite few and the understanding is inadequate on their mechanical and thermoelectric properties. Enlightened by the high-entropy principles, a series of pseudo-ternary Ag 2 S-Ag 2 Se-Ag 2 Te alloys is designed and comprehensive diagrams of composition-structure-plasticity- zT are compiled. Subsequently, the compositional region for the cubic phase is outlined. As a high-entropy example featuring with anion-site alloying and disordered Ag ions, Ag 2- x S 1/3 Se 1/3 Te 1/3 materials exhibit impressively large elongations of 60–97%, ultralow lattice thermal conductivities of ≈0.2 W m −1 K −1 , and decent zT values of 0.45 at 300 K, 0.8 at 460 K. The materials can be readily rolled into thin foils, showing excellent flexibility. Finally, a six-leg in-plane device is fabricated, achieving an output voltage of 13.6 mV, a maximal power of 12.8 µW, and a power density of 14.3 W m −2 under the temperature difference of 30 K, much higher than the organic counterparts. This study largely enriches the members of cubic ductile inorganic materials for the applications in flexible and hetero-shaped energy and electronic devices.
研究领域:
材料科学
·
凝聚态物理
·
无机固体化学
·
热电转换
·
柔性电子学
✓ 已验证
DOI
高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 10
·1-11
·
IF 5.3
Cheng Wenting,Chen Jinhua,Pan Han,He Miao,Cai Yongliang,Wang Zhongyun,Xiang Yang
Breast tumor–derived exosomes promise to guide diagnosis and therapy. But the small size and low mass of exosomes have higher requirements for target binding and signal amplification. Although hybridization chain reaction (HCR) has been extensively utilized for the sensitive detection of an enormous range of biomolecules, including the exosomes, achieving sufficient amplification efficiency remains challenging. To address this limitation, more and more researchers integrate the reaction system with functional materials of DNA. Inspired by this, we herein report for the first time the cubic DNA nanostructure enhanced hybridization chain reaction (CDN-HCR) to detect breast tumor–derived exosomes. Unlike other nanostructure-assisted HCR approaches, the four cholesterol anchors on the CDN enhance the binding affinity of signal probes for exosomes, while the four triggers combined with the supporting CDN further improve the reaction efficiency of HCR. Furthermore, incorporating an electrochemical detection system, the assay platform enables enzyme-free and label-free detection of exosomes. The quantitative detection of exosomes is easily achieved with a linear range of 5.5 × 10 2 to 5.5 × 10 7 particles/μL and a minimal detectable concentration of 51 particles/μL. Finally, the human serum study proves the feasibility of this technique in clinic applications. Graphical
研究领域:
肿瘤学
·
分子生物学
·
生物传感器
·
纳米医学
·
转化医学
·
临床检验
·
生物标记物研究
·
电化学分析
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 20
·1621
·
IF 4.4
Junjun Wang,Linlin Tai,Wei Zhou,Han Chen,Jingxiong Liu,Shaohua Jiang
Transition metal sulfide compounds with high theoretical specific capacity and excellent electronic conductivity that can be used as cathode materials for secondary batteries attract great research interest in the field of electrochemical energy storage. Among these materials, MnSe2garners significant interest from researchers due to its unique three-dimensional cubic structure and inherent stability. However, according to the relevant literature, the performance and cycle life of MnSe2are not yet satisfactory. To address this issue, we synthesize MnSe2/CNTs composites via a straightforward hydrothermal method. MnSO4·H2O, Se, and N2H4·H2O are used as reactants, and CNTs are incorporated during the stirring process. The experimental outcomes indicate that the fabricated electrode demonstrates an initial discharge specific capacity that reaches 621 mAh g−1at a current density of 0.1 A g−1. Moreover, it exhibits excellent rate capability, delivering a discharge specific capacity of 476 mAh g−1at 10 A g−1. The electrode is able to maintain a high discharge specific capacity of 545 mAh g−1after cycling for 1000 times at a current density of 2 A g−1. The exceptional electrochemical performance of the MnSe2/CNTs composites can be ascribed to their three-dimensional cubic architecture and the 3D CNT network. This research aids in the progression of aqueous Cu-ion cathode materials with significant potential, offering a viable route for their advancement.
研究领域:
材料科学
·
电化学能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
·
2019
·
IF 2.367
Xiaoqin Chu,Xingqi Wang,Chunling Tian,Liu Liu,Mengqiu Xia,Jianqin Jiang,Shuangying Gui
The goal of this paper was to develop and evaluate dual component-loaded with the hydrophilic sinomenine hydrochloride (SH) and lipophilic cinnamaldehyde (CA) cubic liquid crystal gels for transdermal delivery. The gels was prepared with a vortex method using phytantriol/water (70:30, w/w) and characterized by polarized light microscopy, small-angle X-ray scattering and rheology. The inner structure of the gels were Pn3m cubic phase and exhibited a pseudoplastic fluid behavior. Furthermore, the in vitro release profile showed that the release behavior of the two drugs from cubic liquid crystal gels conformed to Higuchi equation and were dominated by Fick’s diffusion (n < 0.45). The ex vivo penetration experiment indicated that dual components-loaded liquid crystal gels can enhance and extend the skin permeation of these two drugs, especially the ratio of SH to CA is 1: 0.5. Finally, transdermal mechanisms were evaluated using laser scanning confocal microscopy and attenuated total reflectance-fourier transform infrared, hinting that hydrophilic and lipophilic drugs weaken each other’s transdermal velocity at the initial stage of penetration. In short, the dual drug-loaded liquid crystal gels was a promising strategy for transdermal applications in treatment of chronic disease.
研究领域:
药剂学
·
药物递送系统
·
材料科学
·
生物物理学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Yihui Liu,Kai Kang,Zhuofei Pan,Chao Wang,Kangtao Jiang,Yun Wang
Pr 2 NiO 4+δ -based (Ruddlesden-Popper) perovskite-structured oxide materials are promising candidates for low and intermediate temperature solid oxide fuel cells (SOFCs) systems. In this study, we prepared a high-performance cubic-fluorite/perovskite heterostructure Pr 6 O 11 -Pr 1.2 Sr 0.8 NiO 4+δ (PO-PSNO) cathode for intermediate temperature SOFCs by solution impregnation method. By changing the impregnation amount of Pr 6 O 11 , the micro-morphology of the heterostructure was regulated, so that the heterostructure interface had the best reactive site. The oxygen reduction reaction (ORR) performance of Pr 1.2 Sr 0.8 NiO 4+δ is improved, and the content of surface Sr in the heterostructure electrode material is reduced. Our results indicate that the synergistic effect of PO particles and PSNO skeleton makes the heterostructure exhibit a high oxygen surface exchange properties and catalytic performance. When the impregnation amount of PO particles reaches about 10% of the PSNO skeleton, the heterostructure has the best ORR activity. The oxygen surface exchange coefficient (K chem ) of 2-PO-PSNO is 5.8 × 10 -4 cm·s −1 , being 1.45 times as that of PSNO at 750 °C. Meanwhile, the polarization impedance (R p ) of 2-PO-PSNO is reduced by 66% to only 0.114 Ω cm 2 . Our study provides a new approach for developing high-performance RP structured perovskite cathodes and demonstrates practical applications in the field of SOFCs.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
ACS Applied Bio Materials
·
2020
·
IF 0
Xiaoyi Lv,Xiaoyun Xu,Tian Miao,Xufeng Zang,Chao Geng,Yanping Li,Bo Cui,Yishan Fang
9,10-Diphenylanthracene cubic nanoparticles (DPA CNPs) with aggregation-induced emission characteristic (AIEgens) were synthesized through a facile reprecipitation method; then, a bright and stable electrochemiluminescence (ECL) signal can be observed when the DPA CNPs were modified at the glassy carbon electrode (GCE) in the presence of Tri-n-propylamine (TPA). This phenomenon is ascribed to the molecules with restricted movement that greatly blocked the energy leakage during the relaxation of the excited state, which facilitated the emission of energy in the form of photons. In addition, the size confinement effect of DPA CNPs in the aggregated state effectively enhanced the ECL emission. The application of DPA CNPs with AIE characteristics in an electrochemiluminescence immunosensor has not been reported. In this contribution, a free-label aggregation-induced electrochemiluminescence immunosensor based on DPA CNPs was fabricated and a simple strategy for ultrasensitive detection of aflatoxin B1 (AFB1) was proposed. The ECL signal is quenched linearly in the range of 0.01 pg/mL to 100 ng/mL for AFB1, and the detection limit is 3 fg/mL. In summary, the prepared sensor exhibits high sensitivity, acceptable accuracy, good anti-interference ability and stability, and satisfactory detection toward AFB1 in walnut samples. Therefore, the fabricated immunosensor will have significant applications in the fields of food, medicine, and so on.
研究领域:
食品安全检测
·
生物医学工程
·
分析化学
✓ 已验证
DOI
CRYSTAL GROWTH & DESIGN
·
2022
·
IF 4.01
Zeyu Cheng,Hao Ren,Yazhao Wang,Shengdi Ta,Peng Zhang,Yuhua Yang,Shoulei Xu,Bernard Albert Goodman,Wen Deng
Large-size and high-quality stable ZrO2 single crystals containing x mol % Yb2O3 (x = 7, 8, 9, 10) (denoted as xYbSZ), and 8YbSZ crystals doped with 0.5 mol % Er2O3 were grown by the optical floating zone (OFZ) method. Yb3+ was indicated by XRD and Raman spectroscopy to have successfully entered into the ZrO2 lattice, which was stabilized in the cubic phase when the concentration of Yb2O3 was ≥8 mol %. Er3+ successfully entered the 8YbSZ lattice, and its spectral absorption intensity was enhanced compared to Er3+ in the corresponding yttria-stabilized zirconia (8YSZ), thus demonstrating that the Yb3+ ion has an excellent sensitizing effect on the up-conversion luminescence of Er3+. Fluorescence decay curves show that the up-conversion luminescence excited state lifetime of Er3+ is significantly enhanced in 8YbSZ compared to 8YSZ. Thus, these results demonstrate that Yb3+ ions not only successfully stabilize ZrO2 in the cubic phase structure but also maintain their role as an up-conversion luminescence sensitizer for Er3+ ions.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
·
2021
·Vol. 2021
·期 24
·2353-2364
·
IF 2.524
Xuerui Cao,Guangwei Cao,Mei Li,Xinli Zhu,Jinyu Han,Qingfeng Ge,Hua Wang
Graphical Novel Au x Cu 2 O electrocatalysts were synthesized via the galvanic replacement reaction between Cu 2 O nanocubes and HAuCl 4 solution, and the pre-reduction by linear voltammetry (LSV). The Au 0.02 Cu 2 O pre-reduced by LSV significantly boosted C 2 H 4 selectivity in CO 2 electrocatalytic reduction, which were 5 and 2 times higher than those of bare Cu 2 O and Au 0.02 Cu 2 O pre-reduced by chronoamperometry at high potential, respectively. Electrochemical reduction of carbon dioxide to fuels has been recognized as a perspective way to address the environmental and energy issues. Herein, the novel Au decorated Cu 2 O electrocatalysts were synthesized via the galvanic replacement reaction and the successive pre-reduction by linear voltammetry (LSV) method. In contrast to Cu 2 O, CO formation became dominant over HCOOH and H 2 on Au x Cu 2 O, and a remarkably enhanced selectivity of C 2 H 4 was obtained beyond −1.1 V vs. RHE. Among them, Au 0.02 Cu 2 O exhibited the highest Faraday efficiency (FE) of C 2 H 4 of 24.4 % at −1.3 V vs. RHE, which was as high as 2∼2.5 and 5 times of those on other two Au x Cu 2 O and bare Cu 2 O, respectively. Meanwhile, it is demonstrated that the optimal ratio of Au/Cu was essential for effective sequential catalysis between Au and Cu 2 O to enhance C−C coupling. Furthermore, the effect of copper states resulting from different pre-reduction methods on the selectivity of C 2 H 4 was explored. A half decrease of C 2 H 4 FE was observed on HPR-Au 0.02 Cu 2 O (high potential reduced) relative to the LSV reduced Au 0.02 Cu 2 O, which was ascribed to the different content of Cu 0 and residual Cu + in two catalysts. Our results demonstrate an effective approach to construct Cu 2 O based bimetallic catalysts for ethylene formation from CO 2 .
研究领域:
化学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Materials Chemistry Frontiers
·
2024
·
IF 6
Yujiao Xie,Xue Li,Lei Xu,Chenguang Zhang,Yong Ren,Xiaofeng Shi,Liyun Fu,Jing Wang,Xiawei Xu,Yue Liu,Yue Hu,Zhouxu Zhang,Jiahao Zhang,Ting Yao,Wenzhi Ren,Tianxiang Chen,Xiaoyu Qian,Xiaotian Wang,Jie Lin,Aiguo Wu
Early diagnosis and treatment of liver fibrosis can effectively prevent chronic liver disease from developing into hepatocellular carcinoma (HCC). Conventional techniques to detect liver fibrosis are complex and expensive. The development of non-invasive and sensitive surface-enhanced Raman scattering (SERS) can significantly reduce the time and cost, which is important for improving the efficiency of diagnosis and detection of liver disease. In this study, we developed a cubic core–shell Cu2O@Ag SERS bioprobe for label-free identification of HCC and hepatic fibrosis. The constructed composite substrate has shown impressive SERS sensitivity and good stability. Trace molecules (alizarin red and rhodamine 6G) with concentrations as low as 10−10 mol L−1 could be detected. Cubic Cu2O@Ag also exhibited good SERS stability, since the smallest relative standard deviation (RSD) of Cu2O@Ag-MB (methylene blue) was only 8.80%. Then, the spectral analysis of these three molecules (AR, MB, and R6G) was carried out by applying a machine learning-assisted LDA model, and the classification accuracy reached 100%. Subsequently, four different types of hepatocytes were identified and classified by using the established model and label-free SERS detection with a desirable accuracy of 91.38%. This innovative technology will further facilitate the early diagnosis of HCC and liver disease and assist in the rationalization of clinical treatment.
研究领域:
生物医学工程
·
分析化学
·
医学诊断
·
机器学习
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Lin Wang,Haoshuang Gu,Jian He,Tingting Zhao,Xuewen Zhang,Chuan Xiao,Hui Liu,Xianghui Zhang,Yuebin Li
The adsorption and photodegradation performance are of paramount importance to photocatalysts in environmental hazards, especially in serious organic pollutants leaking emergency in the absence of natural light illumination. Here we demonstrated a surface ligand assisted localized crystallization (SLALC) method to scale synthesis of cubic phase NaNbO 3 (c-NaNbO 3 ) photocatalyst at a low temperature as 350 °C. The as synthesized c-NaNbO 3 nanoparticles could adsorb 95% of methylene blue (MB) in 3 min and photodegrade 99.3% of MB in 180 min. Moreover, the as prepared c-NaNbO 3 nanoparticles exhibit both outstanding adsorption and photodegradation recoverability, which shows great potential in actual environmental conservation.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）