JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
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2024
·
IF 2.6
Sun Kangning,Liang Xurong,Zhou Shufang,Wang Jiayi,Lu Futai,Deng Qiliang
Perishable products are easily deteriorated due to thermal accumulation during storage and transport. A low-cost, environmental-friendly and visualized indicating device is of great importance for real-time monitoring the quality state of such products, but remains a significant challenge. Herein, a novel thermal history indicator (THI) based on readily available starch was developed. The resulting THI displayed sensitively response to the environmental time-temperature over a broad temperature range (15–55 ℃). The activation energies ( E a ) according to the signals of absorbance, fluorescence emission and G’ values are 95.97 kJ/mol 105.3 kJ/mol, and 114.53 kJ/mol, respectively. The continuous appearance changes from colorless to dark brown allowed user-friendly readout. In addition, the quantitative information could also be obtained by the signal changes of absorbance, fluorescence emission, and RGB values. The resulting THI also displayed the immediate response to temperature fluctuations during transportation and storage. The signal values from multiple channels were well correlated with the concentration of aerobic mesophilic bacteria (AMB) in milk under same storage conditions. The proposed THI show the potential application for real-time assessing the quality loss of perishable products. The low-cost, environmental-friendly, commercially available starting material makes it suitable for scalable manufacturing and wide application.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 16
·1-11
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IF 2.8
Yan Xunchang,Wang Sai,Nie Guangzhi,Gao Yuyu,Li Lin,Zhang Tong,Long Yun-Ze,Han Wenpeng
With the development of flexible wearable pressure sensors, capacitive pressure sensors using electric double-layer (EDL) effect have attracted much attention due to their advantages such as high sensitivity. In this study, an all-nanofiber ionic liquid EDL capacitive pressure sensor based on biodegradable polymer Polycaprolactone (PCL) is prepared by electrospinning technology. Based on the control of ionic liquid content in nanofibrous membranes, the performance of EDL capacitive pressure sensors has been investigated. The optimized device has a sensitivity of up to 26.4 kPa −1 in the range of below 10 kPa and 6.2 kPa −1 in the pressure range of 10 to 200 kPa. A detection limit as low as 8.53 Pa also gives it an advantage in detecting small pressures. Based on it, the prepared EDL capacitive pressure sensors have been successfully used to detect various physiological signals such as pulse, heartbeat, breathing, etc. In addition, the excellent mechanical properties and gas permeability also lay the foundation for its application in wearable electronics.
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JOURNAL OF MOLECULAR HISTOLOGY
·
2025
·Vol. 56
·期 1
·1-14
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IF 2.2
Ma Jinjie,Yan Jing,Su Nan,Qiu Zhengjun,Hou Huailong,Sun Jingxuan,Sun Xiangyu,Niu Yumei,He Lina
Facial nerve injuries lead to significant functional impairments and psychological distress for affected patients. Effective repair of these injuries remains a challenge. For longer nerve gaps, the regeneration outcomes after nerve grafting remain suboptimal due to limited sources and postoperative immune responses. Tissue engineering techniques are conventional methods for repairing peripheral nerve defects. This study explores the potential of dental pulp cells (DPCs) combined with stem cell factor (SCF) to enhance neurogenic differentiation and improve facial nerve regeneration. DPCs were isolated from rabbit dental pulp, the pluripotency of the cells was identified from three perspectives: osteogenic differentiation, adipogenic differentiation, and neurogenic differentiation. In vivo experiments involved injuring the buccal branch of the facial nerve in New Zealand white rabbits, followed by treatment with PBS, DPCs, SCF, or SCF + DPCs. Functional recovery was assessed over 12 weeks, with SCF + DPCs demonstrating the most significant improvement in whisker movement scores. Histomorphological evaluations revealed enhanced myelinated fiber density and axonal morphology in the SCF + DPCs group. RNA sequencing identified 608 differentially expressed genes, with enrichment in the TGF-β signaling pathway. In in vitro experiments, we demonstrated from multiple angles using Western blot analysis, Real-time quantitative polymerase chain reaction (QPCR) analysis, and immunofluorescence staining that SCF can promote the neurogenic differentiation of DPCs through the TGF-β1 signaling pathway. Our findings indicate that the combination of SCF and DPCs offers a promising strategy for enhancing facial nerve repair.
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RESEARCH ON CHEMICAL INTERMEDIATES
·
2025
·Vol. 51
·期 4
·2071-2088
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IF 3.5
Wu Yilin,Li Yiping,Zhang Kai,Hu Jinhai,Yan Hong
Photocatalytic CO 2 reduction technology can use sunlight to convert CO 2 into fuel or chemical raw materials, slowdown the greenhouse effect and achieve sustainable development. Therefore, we have developed a series of high-quality carbon quantum dots using alkaline lignin (AL) as the core raw material and using high efficiency hydrothermal method. Ag-BiVO 4 composite was prepared by hydrothermal method. Then, the Ag-BiVO 4 -CQDs photocatalytic composite was prepared by constant temperature water bath method. The structure and morphology of the composites were characterized by X-ray diffraction, transmission electron microscope and X-ray photoelectron spectroscopy. Through optical and electrochemical tests, it can be seen that the composite has better interfacial charge transfer and electron transport ability. In the visible light catalytic CO 2 reduction reaction, Ag-BiVO 4 can selectively reduce CO 2 to CH 4 , and the CH 4 yield is greatly improved after Ag-BiVO 4 combines with CQDs. The 3 h CH 4 yield increased from 17.64 μmol/g to 97.82 μmol/g after reduction by adding 40 mL CQDs to Ag-BiVO 4 composite, which is 5.54 times that of Ag-BiVO 4 . The results showed that the introduced CQDs were uniformly attached to Ag-BiVO 4 . As an electron transport medium, CQDs can efficiently facilitate the transfer of photogenerated carriers, suppress the recombination of electron–hole pairs, and enhance the photocatalytic performance of Ag-BiVO 4 -CQDs for CO 2 reduction.
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-9
·
IF 14.7
Chen Ze,Wang Tairan,Wu Zhuoxi,Hou Yue,Chen Ao,Wang Yanbo,Huang Zhaodong,Schmidt Oliver G.,Zhu Minshen,Fan Jun,Zhi Chunyi
The high redox potential of Zn 0/2+ leads to low voltage of Zn batteries and therefore low energy density, plaguing deployment of Zn batteries in many energy-demanding applications. Though employing high-voltage cathode like spinel LiNi 0.5 Mn 1.5 O 4 can increase the voltages of Zn batteries, Zn 2+ ions will be immobilized in LiNi 0.5 Mn 1.5 O 4 once intercalated, resulting in irreversibility. Here, we design a polymer hetero-electrolyte consisting of an anode layer with Zn 2+ ions as charge carriers and a cathode layer that blocks the Zn 2+ ion shuttle, which allows separated Zn and Li reversibility. As such, the Zn ‖ LNMO cell exhibits up to 2.4 V discharge voltage and 450 stable cycles with high reversible capacity, which are also attained in a scale-up pouch cell. The pouch cell shows a low self-discharge after resting for 28 days. The designed electrolyte paves the way to develop high-voltage Zn batteries based on reversible lithiated cathodes.
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Journal of Bionic Engineering
·
2025
·
IF 5.8
Yu Zerun,Liu Jiaan,Yang Tian,Zhang Linyang,Hu Chunhua
Insufficient interfacial activity and poor wettability between fibers and matrix are the two main factors limiting the improvement of mechanical properties of Carbon Fiber Reinforced Plastics (CFRP). Owl feathers are known for their unique compact structure; they are not only lightweight but also strong. In this study, an in-depth look at owl feathers was made and it found that owl feathers not only have the macro branches structure between feather shafts and branches but also have fine feather structures on the branches. The presence of these fine feather structures increases the specific surface area of the plume branches and allows neighboring plume branches to hook up with each other, forming an effective mechanical interlocking structure. These structures bring owl feathers excellent mechanical properties. Inspired by the natural structure of owl feathers, a weaving technique and a sizing process were combined to prepare bionic Carbon Fiber (CF) fabrics and then to fabricate the bionic CFRP with structural characteristics similar to owl feathers. To evaluate the effect of the fine feather structure on the mechanical properties of CFRP, a mechanical property study on CFRP with and without the fine feather imitation structure were conducted. The experimental results show that the introduction of the fine feather branch structure enhance the mechanical properties of CFRP significantly. Specifically, the tensile strength of the composites increased by 6.42% and 13.06% and the flexural strength increased by 8.02% and 16.87% in the 0° and 90° sample directions, respectively. These results provide a new design idea for the improvement of the mechanical properties of the CFRP, promoting the application of CFRP in engineering fields, such as automotive transportation, rail transit, aerospace, and construction.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 2
·1-13
·
IF 5.3
Zhang Jiadong,Cui Yaoying,Dou Yanchao,Zhu Jingying,Ma Xiangyu,Guo Liming,Zhang Kai,Hao Nan,Feng Liangdong,Chen Yi
A highly sensitive and selective electrochemical biosensor was developed for the detection of kanamycin using a core-hollow-shell structured peroxidase-mimic nanozyme, CHS-Fe₃O₄@@ZIF-8. The synthesized CHS-Fe 3 O 4 @@ZIF-8 was characterized with scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. It was found that the CHS-Fe 3 O 4 @@ZIF-8 exhibits excellent peroxidase-like activity due to its ultra-thin hollow layer. Besides, CHS-Fe 3 O 4 @@ZIF-8 functionalized with complementary chains of kanamycin aptamer was anchored to the electrode surface via complementary base pairing with the kanamycin aptamer. Upon the presence of kanamycin, a strand displacement reaction was triggered leading to a reduction in the number of the CHS-Fe 3 O 4 @@ZIF-8, which slowed down the catalytic reaction of the substrate 3,3’,5,5’ -tetramethylbenzidine (TMB) facilitated by CHS-Fe 3 O 4 @@ZIF 8. Differential pulse voltammetry (DPV) was employed to measure and record changes in peak current resulting from catalytic oxidation product formation (oxidation product of TMB). The electrochemical signal exhibited a linear relationship with logarithmic variations in kanamycin concentration within a range spanning from 10 to 8000 pM and achieved an impressive detection limit as low as 7.52 pM. Furthermore, successful detection of kanamycin content in serum samples using this sensor demonstrated its good specificity and reproducibility. These findings indicate that the constructed electrochemical kanamycin sensor holds significant potential for practical applications. The biosensor demonstrated high selectivity, distinguishing kanamycin from other antibiotics, and exhibited good reproducibility, making it reliable for practical applications. The successful detection of kanamycin in serum samples further underscores the sensor’s potential for real-world applications, particularly in monitoring antibiotic residues in food products and clinical diagnostics. Graphical
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Biomass Conversion and Biorefinery
·
2024
·
IF 3.5
Ouyang Yue,Sun Wei,Tian Longjin,Liu Ying,Fan Guozhi,Pan Cheng,Cheng Qunpeng
In this study, the performance of biochar (BC)-supported cobalt (Co) and copper (Cu) (CoCu@BC) on tetracycline (TC) adsorption in aqueous solution and piggery wastewater was investigated. Scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) surface area, Fourier-transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) were used to characterize the CoCu@BC adsorbent. The influence of initial pH, TC concentration, adsorbent dosage, and co-existing ions on TC adsorption performance was studied. Meanwhile, the adsorption kinetics, isotherm, and diffusion models were studied. The results showed that the CoCu@BC was characteristic of 142.1745 m 2 ·g −1 (BET surface area), 0.035987 cm 3 ·g −1 (microspore volume), and 3.74 (pH PZC ). The adsorption of TC on CoCu@BC well fitted with the pseudo-second-order model and the Freundlich isotherm. The maximum adsorption capacity of CoCu@BC was 621.118 mg/g, which was less influenced by pH while greatly inhibited by NO 2 − and SO 4 2− . Finally, the removal of TC (94.5%), NH 4 + -N (27%), and COD (18%) by CoCu@BC was carried out in piggery wastewater, indicating its superior performance in practice application.
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FIBERS AND POLYMERS
·
2024
·
IF 2.2
Zhou Kui,Hu Rugang,Li Hanjing,Chen Hongwei
In this study, chitosan/hydroxyapatite nanowire composite scaffolds were prepared by the cryogenic 3D printing method. Their properties were investigated for bone regeneration. Synthesized hydroxyapatite nanowire and strontium doped hydroxyapatite nanowire were studied by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetry. The synthesized nanowires have good biocompatibility. Then, chitosan/hydroxyapatite nanowire composite scaffolds were prepared by cryogenic 3D printing. The morphologies, composition, biocompatibility, and osseogenesis in vivo of scaffolds were observed. Results indicated that scaffolds prepared by cryogenic 3D printing exhibited desirable 3D interconnected macro/microporous structures and good biocompatibility. Meanwhile, in vivo cranial defect implantation results confirmed that chitosan and strontium-doped hydroxyapatite nanowire composite scaffolds have the best ability of in vivo bone regeneration. The present composite scaffold has promising characteristics for bone regeneration.
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2025
·Vol. 131
·期 1
·1-16
·
IF 2.8
Zheng Guangwei,Jiang Shukang,Zhang Fengqing,Yu Hongwen,Zhang Yanli L.
Choosing suitable photoanode materials is the most critical aspect for photoelectrochemical (PEC) water splitting. The low efficiency of PEC water splitting photoanodes restricts their widespread application for large-scale H 2 production. Herein, we prepared WO 3 photoanodes with controllable structures via hydrothermal-electrophoretic deposition and seed-mediated hydrothermal synthesis, achieving ex situ assembly and in situ growth on FTO glass substrates. Under simulated sunlight irradiation, the photoelectric current density of the WO 3 photoanode prepared by in situ hydrothermal synthesis exceeds 1.0 mA/cm² (at 1.23 V vs. RHE), significantly higher than that of the WO 3 photoanode prepared by ex situ assembly (which is less than 0.3 mA/cm² at 1.23 V vs. RHE). By contrast, the in situ preparation of the WO 3 photoanode using tungsten powder and H 2 O 2 as raw materials exhibits the enhanced photocurrent density of 1.27 mA/cm² at 1.23 V vs. RHE. The excellent PEC performance of the resulting sample could be attributed to the ordered charge transport channels from the two-dimensional (2D) nanoplates structure, the enhanced electron-hole pairs separation from the superior crystallinity of WO 3 and the strong binding between the WO 3 nanoplates and the FTO substrate. Additionally, the effect of calcination temperature on the PEC performance of the prepared WO 3 was further investigated. This work provides a way for the synthesis of environmentally friendly and cost-effective photoanodes for efficient photoelectrochemical water splitting.
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ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
·
2024
·Vol. 31
·期 1
·1-13
·
IF 3
Wu Jinze,Yao Jiale,Zhu Xiping,Zuo Danying,Zhang Hongwei,Jiang Shuai,Li Hongjun
Most hydrogels for dye treatment only have the adsorption ability for anionic or cationic dyes, while a few zwitterionic hydrogels that can adsorb both anionic and cationic dyes need a complicated regeneration process when they are reused. To prepare reusable zwitterionic adsorbent hydrogels, in this paper, a zwitterionic composite hydrogel with Ag@g-C 3 N 4 was prepared, which not only can adsorb both anionic and cationic dyes but also has photocatalytic degradation ability. The scanning electron microscopy images show that the optimum hydrogel has a large number of micro pores for dye adsorption. The adsorption capacity of the hydrogel achieves the highest in mixed dye concentration of 50 mg·L -1 with pH value of 7–9. Benefiting from the synergistic effect of adsorption and photocatalytic degradation, the removal efficiency of methyl orange and methylene blue in mixed dyes was up to 93.86% and 91.80%, respectively. The photocatalytic activity trapping experiments showed that superoxide radicals as well as hydroxyl radicals played a major role in photocatalytic degradation. After 5 consecutive photocatalytic degradations, the removal ratio of the hydrogel for dyes was still above 80%, indicating good photocatalytic degradation and reusability properties. This research suggested the zwitterionic composite hydrogel has a promising prospect in removing dyes from wastewater treatment.
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Journal of Inorganic and Organometallic Polymers and Materials
·
2024
·
IF 3.9
Liu Hao,Wang Yanlin,Yuan Hong,Luo Wenbo
Nanoscale ZSM-5 zeolites (NZSM-5) having different crystal sizes and Si/tetrapropylammonium hydroxide (TPAOH) molar ratios were synthesized using a hydrothermal method. These materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N 2 adsorption–desorption. The results showed that each zeolite was highly crystalline regardless of the Si/TPAOH ratio and that the Brunauer–Emmett–Teller surface areas were in the range of 329−392 m 2 /g. The random aggregation of these nanoparticles resulted in the formation of numerous intergranular mesopores. These NZSM-5 zeolites were applied to the catalytic cracking of oleic acid to prepare light olefins and light aromatics using a laboratory-scale fixed bed reactor. The zeolite having a Si/TPAOH ratio of 10/5 showed the best catalytic activity and provided light olefins yield of 55% and selectivity of BTX in liquid phase products of 18%, respectively, at 500 °C. The small crystal size and abundant intergranular mesopores in this specimen resulted in shorter diffusion paths and an increase in the external specific surface area that both inhibited coke deposition and ensured accessible acid sites. Graphical Abstract
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危险品化学品经营许可证（带存储）