Dimer- and trimer-origami frames are bridged by duplexes that include caged, sequence-specific, anti-ATP and/or anti-cocaine aptamer sequences. The programmed dissociation of the origami dimers or ...trimers in the presence of ATP and/or cocaine ligands is demonstrated. The processes are followed by AFM imaging and by electrophoretic experiments.
We present a highly efficient scheme for perfect joint remote preparation of an arbitrary
2
n
-qubit W state with minimum quantum resource. Both the senders Alice and Bob intend to jointly prepare ...one
2
n
-qubit W state for the remote receiver Charlie. In the beginning, they help the remote receiver Charlie to construct one
n
-qubit intermediate state which is closely related to the target
2
n
-qubit W state. Afterward, Charlie introduces auxiliary qubits and applies appropriate operations to obtain the target
2
n
-qubit W state. Compared with previous schemes, our scheme requires minimum quantum resource and least amount of classical communication. Moreover, our scheme has a significant potential for being adapted to remote state preparation of other special states.
Background and Objectives
Grain and oil processing by‐products contain dietary fiber with high quality, but most of them have not been utilized due to their high content of insoluble dietary fiber ...and coarse texture, which are detrimental to the quality improvement of cereal food.
Findings
Steam explosion treatment can transfer dietary fiber from insoluble to water‐soluble resulting in a high content of water‐soluble dietary fiber. The content of soluble dietary fiber in cereal processing by‐products with steam explosion treatment is increased from 27.48% to 171% via optimal conditions of steam explosion treatment. The structure of dietary fiber from cereal processing by‐products is disrupted to a honeycomb porous shape, therefore, the physicochemical properties of dietary fiber are improved, such as hydration capacity, oil, cholesterol, and bile salts binding capacity, hypoglycemic capacity, and antioxidant activity.
Conclusions
Steam explosion treatment is a rapidly developing and extremely promising pretreatment technology for physicochemical properties enhancement of dietary fiber from grain and oil processing by‐products.
Significance and Novelty
This review can provide some useful references for the properties improvement of soluble dietary fiber in grain and oil processing by‐products by steam explosion pretreatment. It may facilitate the application of soluble dietary fiber in the food industry.
In the present work, influence of silane solution concentration on mechanical, tribological and morphological properties of Corn Stalk Fiber (CSF) reinforced polymer composites was investigated. ...Experimental results showed that the silane-treated CSF reinforced polymer composite (CMS) exhibited a promising property of low density. Silane solution treatments of the CSF could effectively reduce the water absorption and apparent porosity of the polymer composite system. The silane-treated CSF could not effectively improve the friction performance, but could significantly improve the wear rate of the polymer composites. Especially, the sum wear rate of 5% silane-treated CSF reinforced composite (5% CMS) decreased by 22.8% from 4.792 × 10−7 cm3(N⋅m)−1 to 3.699 × 10−7 cm3(N⋅m)−1 compared with that of the raw CSF reinforced composite (CMU), showing the best wear resistant behavior. Worn surfaces were examined by Scanning Electron Microscopy and the results revealed that the silane-treated CSF was conducive to the formation of secondary plateaus on the polymer composite surface, which could obviously improve the tribological and morphological properties.
•Corn stalk fibers were treated by the silane with the aim of develop bio-polymer composites.•The effect of surface treatment on tribological properties of the composites is confirmed.•Silane-treated corn stalk fibers were more effective in improving tribological properties.•Silane-treated corn stalk fibers were attributed to secondary plateaus on the worn surface.
Highlights
Large-area, lightweight, ultra-flexible, and robust crosslinked MXene-coated PI porous composites were manufactured via a scalable and facile approach.
In addition to the hydrophobicity, ...anti-oxidation and extreme-temperature stability, excellent electromagnetic interference shielding performance was achieved because of the high-efficiency utilization of the building units and microstructure.
Moreover, the highly flexible composite foams exhibited excellent electrothermal and electromechanical sensing performance, demonstrating promising perspectives in next-generation flexible electronics, aerospace, and smart devices.
Lightweight, ultra-flexible, and robust crosslinked transition metal carbide (Ti
3
C
2
MXene) coated polyimide (PI) (C-MXene@PI) porous composites are manufactured via a scalable dip-coating followed by chemical crosslinking approach. In addition to the hydrophobicity, anti-oxidation and extreme-temperature stability, efficient utilization of the intrinsic conductivity of MXene, the interfacial polarization between MXene and PI, and the micrometer-sized pores of the composite foams are achieved. Consequently, the composites show a satisfactory X-band electromagnetic interference (EMI) shielding effectiveness of 22.5 to 62.5 dB at a density of 28.7 to 48.7 mg cm
−3
, leading to an excellent surface-specific SE of 21,317 dB cm
2
g
−1
. Moreover, the composite foams exhibit excellent electrothermal performance as flexible heaters in terms of a prominent, rapid reproducible, and stable electrothermal effect at low voltages and superior heat performance and more uniform heat distribution compared with the commercial heaters composed of alloy plates. Furthermore, the composite foams are well attached on a human body to check their electromechanical sensing performance, demonstrating the sensitive and reliable detection of human motions as wearable sensors. The excellent EMI shielding performance and multifunctionalities, along with the facile and easy-to-scalable manufacturing techniques, imply promising perspectives of the porous C-MXene@PI composites in next-generation flexible electronics, aerospace, and smart devices.
Novel NH2-functionalized cellulose acetate (CA)/silica composite nanofibrous membranes were successfully prepared by sol–gel combined with electrospinning technology. Tetraethoxysilane (TEOS) as a ...silica source, CA as precursor and 3-ureidopropyltriethoxysilane as a coupling agent were used in membrane preparation. The membrane’s chemical and morphological structures were investigated by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) images, X-ray diffraction (XRD), element analyzer, Fourier-transform infrared spectroscopy (FTIR) and N2 adsorption–desorption isotherms. The composite nanofibrous membranes exhibited high surface area and porosity. The membranes were used for Cr(VI) ion removal from aqueous solution through static and dynamic experiments. The adsorption behavior of Cr(VI) can be well described by the Langmuir adsorption model, and the maximum adsorption capacity for Cr(VI) is estimated to be 19.46 mg/g. The membrane can be conveniently regenerated by alkalization. Thus the composite membrane prepared from biodegradable raw material has potential applications in the field of water treatment.
► NH2-CA/silica composite membrane was prepared by sol gel and electrospinning method. ► The functionalized membrane exhibited high surface area and porosity. ► The membrane has a high adsorption capacity for Cr(VI) ions from aqueous solution. ► The functionalized membrane can be easily regenerated by the alkalization process.
Salt stress is one of the major environmental constraints for plant growth. Although the ways in which mycorrhizal plants deal with salt stress have been well documented, it still is blank for ...Euonymus maackii, an important local ecological restoration tree, to arbuscular mycorrhizal fungi (AMF) inoculation and salt stress. In this study, we tested the effect of different salt levels (0, 50, 100,150 and 200 mM) and AMF inoculation on E. maackii growth rate, photosynthesis, antioxidant enzymes, nutrient absorption and salt ion distribution. The results indicated negative effect of salt on height, photosynthesis capacity, nutrition accumulation, while salt stimulated the antioxidant defense system and salt ions accumulation. The toxic symptom by excessive accumulation of salt ions worsen with salt level increased gradually (except for the 50 mM NaCl treatment). AMF inoculation alleviated the toxic symptom under moderate salt levels (100 and 150 mM) by increasing photosynthesis capacity, accelerating nutrient absorption and activating antioxidant enzyme activities under salt stress. Meanwhile, effect of AMF was not detected on seedlings under slight (0 and 50 mM) and high (200 mM) NaCl concentration. Our study indicated AMF had positive impact on E. maackii subjected to salt, which suggested potential application of AMF- E. maackii on restoration of salt ecosystems.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Triple-negative breast cancer (TNBC) is defined based on the absence of estrogen, progesterone, and human epidermal growth factor receptor 2 receptors. Currently, chemotherapy is the major ...therapeutic approach for TNBC patients; however, poor prognosis after a standard chemotherapy regimen is still commonplace due to drug resistance. Abnormal tumor metabolism and infiltrated immune or stromal cells in the tumor microenvironment (TME) may orchestrate mammary tumor growth and metastasis or give rise to new subsets of cancer cells resistant to drug treatment. The immunosuppressive mechanisms established in the TME make cancer cell clones invulnerable to immune recognition and killing, and turn immune cells into tumor-supporting cells, hence allowing cancer growth and dissemination. Phytochemicals with the potential to change the tumor metabolism or reprogram the TME may provide opportunities to suppress cancer metastasis and/or overcome chemoresistance. Furthermore, phytochemical intervention that reprograms the TME away from favoring immunoevasion and instead towards immunosurveillance may prevent TNBC metastasis and help improve the efficacy of combination therapies as phyto-adjuvants to combat drug-resistant TNBC. In this review, we summarize current findings on selected bioactive plant-derived natural products in preclinical mouse models and/or clinical trials with focus on their immunomodulatory mechanisms in the TME and their roles in regulating tumor metabolism for TNBC prevention or therapy.
Abstract
Background
An imbalance in the expression of vascular endothelial growth factor (VEGF) and its receptor (VEGF-R) during pregnancy plays an important role in the pathogenesis of gestational ...diabetes mellitus (GDM) and eclampsia. VEGF and its receptors change during the regulation of blood vessels as a result of risk factors such as familial genetics. These modifications include loss of original balance of serological indicators, upregulation or downregulation of growth factor indicators, and changes in the placenta, kidney, liver and other organs to varying degrees of damage. This has an impact on both the pregnant woman's and the fetus's health.
Main body
This paper summarizes the mechanisms of unbalanced VEGF and receptor expression based on data from relevant literature on GDM and eclampsia. An Imbalance in VEGF and its binding receptor is often associated with the occurrence of multiple pregnancy disorders. In recent years, researchers have focused on the potential role of VEGF and its receptors in the development of GDM and eclampsia.
Conclusion
This paper summarizes the different VEGF subtypes and their binding receptors, as well as mechanisms that cause GDM and eclampsia, in order to provide valuable data to inform monitoring, diagnosis, and prognosis.
With the in-depth development of globalization, individuals are increasingly embedded in a culturally diverse environment. Effective communication and management ability (Cultural Intelligence) of ...employees in this type of diverse and heterogeneous environment impacts behavior and performance, affecting the sustainable innovation ability of organizations. Researchers have not yet fully assessed the impact of individuals' cross-cultural management ability on sustainable innovation. Using Cultural Intelligence Theory and Trait Activation Theory, this paper discusses the influence of individual cultural intelligence on sustainable innovation behavior. The results showed that employees' cultural intelligence positively affected their sustainable innovation behavior. Employee knowledge sharing plays an mediating role between intelligence and behavior. Differences in organizational culture have a negative moderating effect on the impact of employees' cultural intelligence on knowledge sharing and sustainable innovation behaviors. The research results provide theoretical guidance for managing organizational cultural diversity and advancing cultural intelligence and sustainable innovation behaviors among employees.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
PDF
