Publications by authors named "Fengyi Zhao"

The selective photoreduction of CO in aqueous media based on earth-abundant elements only, is today a challenging topic. Here we present the anchoring of discrete molecular catalysts on organic polymeric semiconductors via covalent bonding, generating molecular hybrid materials with well-defined active sites for CO photoreduction, exclusively to CO in purely aqueous media. The molecular catalysts are based on aryl substituted Co phthalocyanines that can be coordinated by dangling pyridyl attached to a polymeric covalent triazine framework that acts as a light absorber.

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  • Two-dimensional (2D) Dion-Jacobson phase perovskites show better thermal stability than traditional three-dimensional ones, but how they conduct heat is not well understood.* -
  • Researchers used time-domain thermoreflectance to measure the thermal conductivities of (PDA)(FA)n PbnI films, finding very low conductivities that fluctuate based on the value of 'n', with the lowest occurring at n=2.* -
  • The study reveals that the orientation of grain affects thermal conductivity, with transitions from horizontal to vertical alignment as 'n' increases, and phonon velocity is key to this process, offering insights for improved thermal management in devices.*
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In photoelectrochemical cells, promising devices for directly converting solar energy into storable chemical fuels, the spatial variation of the electrostatic potential across the semiconductor-electrolyte junction is the key parameter that determines the cell performance. In principle, electric field induced second harmonic generation (EFISH) provides a contactless in situ spectroscopic tool to measure the spatial variation of electrostatic potential. However, the total second harmonic generation (SHG) signal contains the contributions of the EFISH signals of semiconductor space charge layer and the electric double layer, in addition to the SHG signal of the electrode surface.

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Electron transfer (ET) is the fundamental redox process of life and element cycling. The ET distance is normally as short as nanometers or micrometers in the subsurface. However, the redox gradient in the subsurface is as long as centimeters or even meters.

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Background: The number of patients undergoing joint replacement procedures is continuously increasing. Tele-equipment is progressively being employed for postrehabilitation of total hip and knee replacements. Gaining a comprehensive understanding of the experiences and requirements of patients undergoing total hip and knee arthroplasty who participate in telerehabilitation can contribute to the enhancement of telerehabilitation programs and the overall rehabilitation and care provided to this specific population.

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Background: Effective self-management after total knee arthroplasty (TKA) not only improves patients' knee pain and physical function but also improves quality of life. However, there is no assessment tool that can be targeted to evaluate the self-management level of patients after TKA. This study aimed to develop and validate a scale to specifically assess the level of self-management in patients after TKA.

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: This study aimed to observe the effects of germinated brown rice and germinated black rice on blood lipid levels, blood glucose levels and lipid metabolism-related enzymes in T2DM patients with dyslipidaemia and to study their effects on the gut microbiome and short-chain fatty acids. : According to the inclusion and exclusion criteria, 68 subjects were randomly divided into a germinated brown rice group, a germinated black rice group and a white rice group. At the end of the intervention, relevant anthropometric indices, blood biochemistry, and levels of adipokines and lipid metabolism-related enzymes were measured.

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  • A new photoanode was developed using a water oxidation catalyst and nanoporous titanium oxide electrodes, enhancing oxygen evolution photocurrent significantly in acidic conditions.
  • The catalyst's structural integrity was confirmed through spectroscopy techniques before and after use, ensuring reliable performance during experiments.
  • This study provides the first detailed investigation of how polyoxometalates function in hybrid systems for oxygen evolution reactions, highlighting their effectiveness in facilitating charge transfer processes.
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Objective: The objective of this study was to conduct a systematic and comprehensive review of qualitative research to examine the physical and psychological needs, as well as work experiences, of patients undergoing total knee replacement and total hip replacement surgeries during their process of returning to work.

Methods: A systematic review and meta-synthesis of qualitative literature was conducted. A systematic search was conducted across 8 databases to identify qualitative or mixed-methods research on the needs and experiences of individuals with total knee replacement and total hip replacement who have returned to work.

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A green photo-oxidation reaction was discovered in which the imidazole ring is oxidized and rearranged to generate imidazolinone derivatives with thermal activation delayed fluorescence properties. The excellent photo-oxidation properties of p-PTZ-PIM can be utilized for detecting trace oxygen in the water phase and the sealing of food packaging bags.

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Efficient and stable photoelectrochemical reduction of CO into highly reduced liquid fuels remains a formidable challenge, which requires an innovative semiconductor/catalyst interface to tackle. In this study, we introduce a strategy involving the fabrication of a silicon micropillar array structure coated with a superhydrophobic fluorinated carbon layer for the photoelectrochemical conversion of CO into methanol. The pillars increase the electrode surface area, improve catalyst loading and adhesion without compromising light absorption, and help confine gaseous intermediates near the catalyst surface.

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  • Lenalidomide is the primary drug for treating multiple myeloma, but its effectiveness varies widely among patients, with some worsening and others improving after treatment.
  • A study looked at 20 patients who received lenalidomide and analyzed their urine for metabolic compounds using advanced mass spectrometry techniques.
  • Eleven metabolites were identified, including two key compounds: Denitrified-2 glutarimide, linked to ineffective and stable patients, and 5-Hydroxy-lenalidomide, found only in effective patients.
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Blackberry fruit contains high levels of nutrients and phenolic compounds. Blackberry pomace accounts for 20~30% of its whole fruit during processing and is generally treated as fertilizer. Blackberry pomace has many seeds that contain carbohydrates, polyphenols, flavonoids, pectin, protein, and other bioactive nutrients.

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Ellagic acid (EA) is present at relatively high concentrations in many berries and has many beneficial health effects, including anticancer properties. To improve the development and utilization of blackberry fruit nutrients, we divided Hull blackberry fruits into five growth periods according to color and determined the EA content in the fruits in each period. The EA content in the green fruit stage was the highest at 5.

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Introduction: Gastric cancer is a highly heterogeneous malignant tumor of the digestive system. Anti-HER2 treatment can inhibit downstream signaling pathways and improve clinical treatment and outcomes in patients with HER2 protein overexpression. Currently, two standard methods for evaluating HER2 expression status are immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH).

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Photoelectrodes consisting of metal-insulator-semiconductor (MIS) junctions are a promising candidate architecture for water splitting and for the CO reduction reaction (CORR). The photovoltage is an essential indicator of the driving force that a photoelectrode can provide for surface catalytic reactions. However, for MIS photoelectrodes that contain metal nanoparticles, direct photovoltage measurements at the metal sites under operational conditions remain challenging.

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is an ancient medicinal herb and food that are commonly used in Asian countries with high nutritional ingredients and biological activities. Polyphenols are important functional components in . To obtain a more efficient extraction process of polyphenols, a single-factor test and response surface method were used.

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Objective: We explored the dietary effects of replacing normal dietary staple foods with supplementary nutritional protein powder, dietary fiber, and fish oil on several metabolic parameters. We examined weight loss, glucose and lipid metabolism, and intestinal flora in obese individuals when compared with individuals on a reduced staple food low carbohydrate diet.

Methods: From inclusion and exclusion criteria, 99 participants (28 kg/m ≤ body mass index (BMI) ≤ 35 kg/m) were recruited and randomly assigned to control and intervention 1 and 2 groups.

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Blueberries are rich in flavonoids, anthocyanins, phenolic acids, and other bioactive substances. Anthocyanins are important functional components in blueberries. We collected 65 varieties of blueberries to investigate their nutritional and functional values.

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Blackberries have high nutritional value and strong biological activities, such as antiproliferative activity. Anthocyanins are important functional components in blackberries. We collected 25 kinds (lines) of blackberries from our nursery to investigate antiproliferative agents in natural foods.

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We report a ternary hybrid photocatalyst architecture with tailored interfaces that boost the utilization of solar energy for photochemical CO reduction by synergizing electron and heat flows in the photocatalyst. The photocatalyst comprises cobalt phthalocyanine (CoPc) molecules assembled on multiwalled carbon nanotubes (CNTs) that are decorated with nearly monodispersed cadmium sulfide quantum dots (CdS QDs). The CdS QDs absorb visible light and generate electron-hole pairs.

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Adolescent behavior is closely related to academic and long-term personal development, and adolescents are vulnerable to the influences from people around them. This study aimed to analyze the factors and mechanisms that influence the behavior of adolescents. It examines the impact of family, teachers, and peers on adolescent prosocial behavior and misconduct.

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  • The study focuses on understanding the efficiency loss processes in photoelectrochemical solar fuel generation by examining titanium dioxide-protected gallium phosphide photocathodes.
  • By using simultaneous transient photocurrent and transient reflectance spectroscopy, researchers can directly observe charge carrier kinetics and assess the initial charge separation quantum efficiency.
  • The findings highlight two main loss pathways: recombination within the gallium phosphide that decreases efficiency and interfacial recombination at the junction, identifying the initial charge separation as the primary limiting factor for efficiency in the system.
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Exploiting noble-metal-free systems for high-performance photocatalytic CO reduction still presents a key challenge, partially due to the long-standing difficulties in developing potent and durable earth-abundant photosensitizers. Therefore, based on the very cheap aluminum metal, we have deployed a systematic series of homoleptic Al(III) photosensitizers featuring 2-pyridylpyrrolide ligands for CO photoreduction. The combined studies of steady-state and time-resolved spectroscopy as well as quantum chemical calculations demonstrate that in anerobic CHCN solutions at room temperature, visible-light excitation of the Al(III) photosensitizers leads to an efficient population of singlet excited states with nanosecond-scale lifetimes and notable emission quantum yields (10-40%).

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