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  1. Article ; Online: Self-assembled bamboo-like carbon nanotubes based on chiral H

    Li, Fangxiu / Sun, Yue / Sun, Xiaoxia / Hu, Yu

    RSC advances

    2024  Volume 14, Issue 2, Page(s) 1134–1140

    Abstract: Fluorescence recognition for the antimalarial cinchonidine could be achieved efficiently and rapidly through bamboo-like carbon nanotubes based on chiral conjugated ... ...

    Abstract Fluorescence recognition for the antimalarial cinchonidine could be achieved efficiently and rapidly through bamboo-like carbon nanotubes based on chiral conjugated H
    Language English
    Publishing date 2024-01-02
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d3ra08143e
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Self-Assembled Nanotubes Based on Chiral H

    Tao, Jisheng / Guo, Fang / Sun, Yue / Sun, Xiaoxia / Hu, Yu

    Micromachines

    2024  Volume 15, Issue 1

    Abstract: A novel fluorescent "off" ... ...

    Abstract A novel fluorescent "off" probe
    Language English
    Publishing date 2024-01-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2620864-7
    ISSN 2072-666X
    ISSN 2072-666X
    DOI 10.3390/mi15010163
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Self-assembled nanovesicles based on chiral bis-H

    Tao, Jisheng / Wang, Huizhen / Sun, Yue / Sun, Xiaoxia / Hu, Yu

    RSC advances

    2024  Volume 14, Issue 4, Page(s) 2422–2428

    Abstract: A novel fluorescent "off" sensor, ...

    Abstract A novel fluorescent "off" sensor,
    Language English
    Publishing date 2024-01-12
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d3ra07654g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Levosimendan improves cardiac function, hemodynamics, and body inflammation in patients with acute myocardial infarction and heart failure.

    Sun, Xiaoxia / Wei, Congying / Li, Lei / Qu, Chao

    American journal of translational research

    2023  Volume 15, Issue 9, Page(s) 5624–5632

    Abstract: Objective: To examine the effects of levosimendan on cardiac function, hemodynamics, and body inflammation of patients with acute myocardial infarction and heart failure.: Methods: A retrospective analysis was conducted on 113 acute myocardial ... ...

    Abstract Objective: To examine the effects of levosimendan on cardiac function, hemodynamics, and body inflammation of patients with acute myocardial infarction and heart failure.
    Methods: A retrospective analysis was conducted on 113 acute myocardial infarction patients with heart failure (admitted to Xianyang First People's Hospital from September 2018 to January 2022). According to the treatment plan, patients were categorized into a control group (n = 53) (treated with conventional diuresis and vasodilation) and observation group (n = 60) (treated with levosimendan in addition to the treatment of the control group). Indexes were compared between the two groups before and after treatment, including effectiveness rate, mean pulmonary arterial pressure (PAMP) and pulmonary capillary wedge pressure (PCWP). Left ventricular end-diastolic diameter (LVEDD), left ventricular end-systolic diameter (LVESD) and left ventricular ejection fraction (LVEF) were monitored before and after treatment by color Doppler ultrasonography. Serum high-sensitivity C-reactive protein (hs-CRP) levels were measured before and after treatment. Logistic analysis was applied to screen independent factors affecting treatment efficacy. Adverse reactions and life quality after 6 months of treatment were compared between the two groups.
    Results: The overall response rate of the observation group was higher than that of the control group (P<0.05). Changes in PAMP and PCWP in the two groups before and after treatment were significantly different. Patients in the observation group had improved indicators compared with the control group (all P<0.05). After treatment, the cardiac function indexes and inflammation-related factors of the observation group were improved more than those of the control group (P<0.05). Patients in the observation group had a lower incidence of adverse reactions and a higher life quality 6 months after treatment compared to the control group (P<0.05). Diabetes and treatment regimen were independent risk factors affecting treatment efficacy by logistic regression analysis.
    Conclusion: The administration of levosimendan helps improve cardiac function, hemodynamics, and body inflammation in patients with acute myocardial infarction and heart failure, with fewer adverse reactions and higher safety.
    Language English
    Publishing date 2023-09-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2471058-1
    ISSN 1943-8141
    ISSN 1943-8141
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Water column stratification governs picophytoplankton community structure in the oligotrophic eastern Indian ocean.

    Wang, Feng / Guo, Shujin / Liang, Junhua / Sun, Xiaoxia

    Marine environmental research

    2023  Volume 189, Page(s) 106074

    Abstract: Under the background of global warming, the area extent of the oligotrophic tropical oceans has growing due to increased water-column stratification over the past decades. Picophytoplankton is usually the most dominant phytoplankton group in oligotrophic ...

    Abstract Under the background of global warming, the area extent of the oligotrophic tropical oceans has growing due to increased water-column stratification over the past decades. Picophytoplankton is usually the most dominant phytoplankton group in oligotrophic tropical oceans and substantially contribute to carbon biomass and primary production three. Understanding how vertical stratification governs the community structure of picophytoplankton communities in oligotrophic tropical oceans is important for comprehensively understanding the plankton ecology and biogeochemical cycle in these areas. In this study, the distribution of the picophytoplankton communities in the eastern Indian Ocean (EIO) was investigated during a period of thermal stratification in the spring of 2021. Prochlorococcus contributed most (54.9%) to picophytoplankton carbon biomass, followed by picoeukaryotes (38.5%) and Synechococcus (6.6%). Vertically, the three picophytoplankton groups showed quite different distribution pattern: the abundance of Synechococcus was highest in the surface layer, while Prochlorococcus and picoeukaryotes were usually located between 50 m and 100 m. The relationship between the abundance of picophytoplankton and environmental factors was analyzed, and the results revealed that picophytoplankton distribution was strongly correlated with the degree of vertical stratification of the water column. The density of Synechococcus was higher in strongly stratified waters, while Prochlorococcus was more abundant in regions of weaker stratification. This is mainly attributed to variation of physicochemical parameters such as nutrient structures and temperature resulted from water column stratification. Understanding the distribution patterns of these organisms and their relationship with stratification in the oligotrophic EIO is essential for comprehensive understanding on oligotrophic tropical ecosystem with increasing stratification in future.
    MeSH term(s) Indian Ocean ; Ecosystem ; Water ; Phytoplankton ; Plankton ; Synechococcus ; Seawater/chemistry
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2023-06-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 1502505-6
    ISSN 1879-0291 ; 0141-1136
    ISSN (online) 1879-0291
    ISSN 0141-1136
    DOI 10.1016/j.marenvres.2023.106074
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Three-dimensional multiphysics coupling numerical simulation of a proton conductor solid oxide fuel cell based on multi-defect transport.

    Li, Qiangqiang / Sun, Xiaoxia / Shen, Lili / Li, Guojun

    Physical chemistry chemical physics : PCCP

    2023  Volume 25, Issue 10, Page(s) 7154–7169

    Abstract: The conductivity of the electrolyte of a proton conductor solid oxide fuel cell is not only related to temperature, but also related to the humidity and oxygen partial pressure of the cathode and anode. The gas partial pressure and temperature of the ... ...

    Abstract The conductivity of the electrolyte of a proton conductor solid oxide fuel cell is not only related to temperature, but also related to the humidity and oxygen partial pressure of the cathode and anode. The gas partial pressure and temperature of the cell have significant inhomogeneity in three-dimensional space, so it is extremely important to develop a multi-field coupled three-dimensional model to explore the electrochemical performance of the cell. In this study, a model is constructed that takes into account macroscopic heat and mass transfer, microscopic defect transport, and the reaction kinetics of defects. The results show that for thin cathodes, the ribs significantly affect the oxygen partial pressure and the concentration of defects on the cathode side. On both sides of the electrolyte membrane, the concentration of hydroxide ions increases with increasing gas humidity. The hydroxide ion concentration increases along the flow direction, but the concentration of O-site small polarons increases on the anode side and decreases on the cathode side. The conductivity of hydroxide ions is more sensitive to the humidity of the anode side, while the conductivity of O-site small polarons is more sensitive to the humidity of the cathode side. Increasing the humidity of the cathode side results in a significant decrease in the conductivity of the O-site small polarons. The contribution of the conductivity of oxygen vacancies to the total conductivity is negligible. The total conductivity on the cathode side is greater than that on the anode side; it is dominated by hydroxide ions on the anode side, and co-dominated by hydroxide ions and O-site small polarons on the cathode side. Increasing temperature significantly increases both partial and total conductivity. When hydrogen depletion occurs, the partial conductivities and the total conductivity exhibit a sharp increase downstream of the cell.
    Language English
    Publishing date 2023-03-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d2cp05616j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: In situ phytoplankton photosynthetic characteristics and their controlling factors in the eastern Indian Ocean.

    Wang, Feng / Guo, Shujin / Liang, Junhua / Sun, Xiaoxia

    Marine pollution bulletin

    2023  Volume 198, Page(s) 115869

    Abstract: Photosynthesis is the most important bioenergy conversion process on Earth. Capturing instantaneous changes in in situ photosynthesis in open ocean ecosystems remains a major challenge. In this study, fast repetition rate fluorometry (FRRF), which can ... ...

    Abstract Photosynthesis is the most important bioenergy conversion process on Earth. Capturing instantaneous changes in in situ photosynthesis in open ocean ecosystems remains a major challenge. In this study, fast repetition rate fluorometry (FRRF), which can obtain nondestructive, real-time and in situ estimates of photosynthetic parameters, was used for the first time to continuously observe the spatial variation in in situ photosynthetic parameters in the eastern Indian Ocean (EIO). We further formulated new insights regarding abiotic and biotic factors of potential importance in determining photosynthetic performance. First, we found that the distributions of micro/nano- and picophytoplankton were opposite under the control of nutrient concentrations. Micro/nanophytoplankton had higher cell abundances in the nearshore and upwelling regions, while picophytoplankton had higher abundances in the open ocean, and Prochlorococcus was the dominant group. Second, based on the FRRF technology, we obtained the high-precision and high-density vertical profile map of photosynthetic parameters in the euphotic layer. It was observed that values of the maximum photochemical efficiency (Fv/Fm; 0.14-0.55, unitless) and the functional absorption cross-section of PSII (σ
    MeSH term(s) Indian Ocean ; Phytoplankton/physiology ; Ecosystem ; Photosynthesis/physiology ; Temperature
    Language English
    Publishing date 2023-12-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2023.115869
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Analysis of crystallization during polypropylene melt-blown fiber formation

    Chen, Mingjing / Sun, Xiaoxia / Wang, Xinhou

    Textile Research Journal. 2023 Aug., v. 93, no. 15-16 p.3630-3641

    2023  

    Abstract: Melt-blown nonwovens with randomly distributed micron fibers are widely used because of their excellent properties such as high porosity and high filtration efficiency. It is necessary to study the crystallization behavior of the polymer during the melt- ... ...

    Abstract Melt-blown nonwovens with randomly distributed micron fibers are widely used because of their excellent properties such as high porosity and high filtration efficiency. It is necessary to study the crystallization behavior of the polymer during the melt-blowing process because crystallization affects the formation and properties of the melt-blown fibers. In this study, the nonisothermal crystallization under high-speed cooling conditions and the isothermal crystallization on the collector in the melt-blowing process were investigated. The thermal history of polypropylene during the melt-blowing process was restored by flash differential scanning calorimetry tests. The results showed that the polymer hardly crystallized during the high-speed cooling process from the spinneret to the collector in the case of considering the temperature. The air pressure promoted the crystallinity of melt-blown fibers. The shear effect of the airflow field was considered the main factor affecting the crystallization of melt-blown fibers. The results were beneficial to the establishment of the melt-blowing micro-theoretical model and the control of the final performance of the melt-blown fibers.
    Keywords air flow ; atmospheric pressure ; calorimetry ; crystal structure ; crystallization ; filtration ; models ; nonwoven fabrics ; polypropylenes ; porosity ; research ; temperature ; Melt-blowing ; micron fiber ; fast scan chip calorimetry
    Language English
    Dates of publication 2023-08
    Size p. 3630-3641.
    Publishing place SAGE Publications
    Document type Article ; Online
    ZDB-ID 2209596-2
    ISSN 1746-7748 ; 0040-5175
    ISSN (online) 1746-7748
    ISSN 0040-5175
    DOI 10.1177/00405175231163341
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Water column stratification governs picophytoplankton community structure in the oligotrophic eastern Indian ocean

    Wang, Feng / Guo, Shujin / Liang, Junhua / Sun, Xiaoxia

    Marine Environmental Research. 2023 July, v. 189 p.106074-

    2023  

    Abstract: Under the background of global warming, the area extent of the oligotrophic tropical oceans has growing due to increased water-column stratification over the past decades. Picophytoplankton is usually the most dominant phytoplankton group in oligotrophic ...

    Abstract Under the background of global warming, the area extent of the oligotrophic tropical oceans has growing due to increased water-column stratification over the past decades. Picophytoplankton is usually the most dominant phytoplankton group in oligotrophic tropical oceans and substantially contribute to carbon biomass and primary production three. Understanding how vertical stratification governs the community structure of picophytoplankton communities in oligotrophic tropical oceans is important for comprehensively understanding the plankton ecology and biogeochemical cycle in these areas. In this study, the distribution of the picophytoplankton communities in the eastern Indian Ocean (EIO) was investigated during a period of thermal stratification in the spring of 2021. Prochlorococcus contributed most (54.9%) to picophytoplankton carbon biomass, followed by picoeukaryotes (38.5%) and Synechococcus (6.6%). Vertically, the three picophytoplankton groups showed quite different distribution pattern: the abundance of Synechococcus was highest in the surface layer, while Prochlorococcus and picoeukaryotes were usually located between 50 m and 100 m. The relationship between the abundance of picophytoplankton and environmental factors was analyzed, and the results revealed that picophytoplankton distribution was strongly correlated with the degree of vertical stratification of the water column. The density of Synechococcus was higher in strongly stratified waters, while Prochlorococcus was more abundant in regions of weaker stratification. This is mainly attributed to variation of physicochemical parameters such as nutrient structures and temperature resulted from water column stratification. Understanding the distribution patterns of these organisms and their relationship with stratification in the oligotrophic EIO is essential for comprehensive understanding on oligotrophic tropical ecosystem with increasing stratification in future.
    Keywords Prochlorococcus ; Synechococcus ; biogeochemical cycles ; biomass ; carbon ; community structure ; ecosystems ; phytoplankton ; primary productivity ; research ; spring ; temperature profiles ; Indian Ocean ; Community composition ; Stratification ; Environmental impact ; Eastern Indian ocean
    Language English
    Dates of publication 2023-07
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 1502505-6
    ISSN 1879-0291 ; 0141-1136
    ISSN (online) 1879-0291
    ISSN 0141-1136
    DOI 10.1016/j.marenvres.2023.106074
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Seasonal and spatial variations of

    Li, Suheng / Dong, Yi / Sun, Xiaoxia / Zhao, Yuan / Zhao, Li / Zhang, Wuchang / Xiao, Tian

    Frontiers in microbiology

    2024  Volume 14, Page(s) 1322548

    Abstract: ... ...

    Abstract Synechococcus
    Language English
    Publishing date 2024-01-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2023.1322548
    Database MEDical Literature Analysis and Retrieval System OnLINE

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