Publications by authors named "YuChen Gu"

Bio-based triboelectric nanogenerators (TENGs) are expected to power medical device and detect real-time human motion behavior due to eco-friendliness and biocompatibility. However, the output performance of the TENGs needs to be boosted. In this study, a biodegradable silk fibroin-based TENG with enhanced output performance regulated by interfacial and ionic polarization is proposed.

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Polarization volume grating (PVG), a kind of diffractive optical element, is applied widely for augmented reality (AR) near-eye display (NED) lately. However, PVG-based AR head-up display (AR-HUD) requires a large-size exit pupil and uniform efficiency, and there is presently no systematic simulation method for this type of application. Here, we introduce a unique simulation analysis method via the large-size PVG-based waveguide technology for AR-HUD.

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Article Synopsis
  • Augmented reality (AR) displays are emerging as a key platform for enhancing human-digital interactions by overlaying digital images on the real world, but they still face issues with low optical efficiency and poor image quality related to waveguide technology.
  • This paper investigates the causes of these problems and identifies a unique polarization conversion phenomenon in polarization volume gratings (PVGs) when light doesn't adhere to the usual conditions, which could help improve display performance.
  • By conducting experiments that confirm this phenomenon, the research shows that new designs for waveguide displays could improve both the efficiency of light coupling and the uniformity of the displayed image, potentially transforming future AR technologies.
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Dengue, the most prevalent mosquito-borne disease worldwide, poses a significant health burden. This study integrates clinical data and transcriptomic datasets from different phases of dengue to investigate distinctive and shared cellular and molecular features. Clinical data from 29 dengue patients were collected and analyzed alongside a public transcriptomic data set (GSE28405) to perform differential gene expression analysis, functional enrichment, immune landscape assessment, and development of machine learning model.

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Augmented reality (AR) displays are gaining attention as next-generation intelligent display technologies. Diffractive waveguide technologies are progressively becoming the AR display industry's preferred option. Gradient period polarization volume holographic gratings (PVGs), which are considered to have the potential to expand the field of view (FOV) of waveguide display systems due to their wide bandwidth diffraction characteristics, have been proposed as coupling elements for diffraction waveguide systems in recent years.

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Background: Elucidating viral dynamics within the host is important for designing public health measures against SARS-CoV-2, particularly during the early stages of infection when transmission potential rapidly increases. We aimed to analyse the viral and antibody dynamics of the omicron variant in relation to symptom onset or laboratory confirmation and replication dynamics throughout the infection course.

Methods: In this prospective cohort study, patients with laboratory-confirmed SARS-CoV-2 infection who were admitted to Shenzhen Third People's Hospital (Shenzhen, China) between Jan 11, 2020, and April 24, 2022, were screened for eligibility.

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Article Synopsis
  • The paper introduces a two-dimensional exit pupil expansion (2D-EPE) design for a diffractive waveguide utilizing polarization volume grating (PVG) technology.
  • Simulations are used to analyze light propagation and field of view (FoV) for the waveguide, while a physical sample is created and tested with a monochromatic MicroLED projector for augmented reality (AR) imaging.
  • The experimental results reveal a 30° diagonal FoV, nearly 20x exit pupil magnification, 3.85% optical efficiency, and low backward light leakage, highlighting the potential of PVG-waveguide technology for AR applications.
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This study investigated the performance of constructed wetlands coupled with microbial fuel cells (CW-MFCs) treating agricultural wastewater containing glyphosate (N-phosphonomethyl glycine, PMG), and the use of Cladophora as a cathode plant in this system. Ten devices were divided into Cladophora groups (CGs) and no Cladophora groups (NGs), with five PMG concentrations (0, 10, 25, 50, and 100 mg/L). PMG removal efficiency significantly decreased with increasing PMG (P < 0.

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Liver transplantation is widely acknowledged as the only effective treatment for end-stage liver disease, and infection is reportedly an important cause of postoperative death. Clinical use of metagenomic next-generation sequencing (mNGS) to diagnose postoperative infection and successfully guide drug therapy remains rare. This study included patients with infectious complications after liver transplantation from July 2019 to December 2020 and was divided into three groups: pneumonia, unknown fever, and others (including hepatic failure, kidney failure, cirrhosis after LT, and other postoperative complications that predispose to infection).

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Article Synopsis
  • Plant-derived polyphenols, especially flavonoids, are being explored for their medicinal benefits due to their low toxicity and minimal side effects.
  • Catechins, a significant group of flavonoids, show promise in treating various issues linked to Down syndrome, a genetic disorder often accompanied by intellectual disabilities and increased risk for Alzheimer's disease and obesity.
  • This review focuses on the impact of catechins on conditions associated with Down syndrome and their effects on the DYRK1A gene, which is crucial in relation to brain and metabolic disorders.
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Background: Increasing evidences demonstrated that long non-coding RNAs (lncRNAs) participates in the occurrence and development of cancer. In this study, we explored the function and molecular mechanism of LINC01123 in colorectal cancer progression.

Methods: Analyze the expression level of LINC01123 in gastrointestinal tumors via TCGA database.

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Near-eye holographic waveguide display system using novel reflective polarized volume gratings (RPVG) have lately gotten a lot of interest. However, from polarization characteristics to imaging simulation, there is no systematic approach based on RPVG. Here, a full methodology for solving this problem using the rigorous coupled wave analysis (RCWA) model is presented.

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Background: Atractylodes lancea (Thunb.) DC, a medicinal herb belonging to the Asteraceae family, often faces severe drought stress during its growth. Until now, there has been no research on the effect of drought stress on the quality formation of A.

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Increasing human Adenovirus (HAdV) infections complicated with acute respiratory distress syndrome (ARDS) even fatal outcome were reported in immunocompetent adolescent and adult patients. Here, we characterized the cytokine/chemokine expression profiles of immunocompetent patients complicated with ARDS during HAdV infection and identified biomarkers for disease severity/progression. Forty-eight cytokines/chemokines in the plasma samples from 19 HAdV-infected immunocompetent adolescent and adult patients (ten complicated with ARDS) were measured and analyzed in combination with clinical indices.

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Protostane triterpenes in Alisma orientale (Sam.) Juz. have unique structural features with distinct pharmacological activities.

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Objective: To investigate the expression of LINC01106 in colorectal cancer and its role in regulating the proliferation and apoptosis of colorectal cancer cells.

Methods: We analyzed the data of LINC01106 expression levels in tumor tissues and normal tissues of patients with colorectal cancer in TCGA database and explored the association of LINC01106 expression level with the prognosis of the patients. Colorectal cancer SW480 cell lines with LINC01106 knockdown or overexpression were established, and their proliferation and apoptosis relative to the parental cells were evaluated using CCK-8 assay and flow cytometry, respectively.

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Signal transducer and activator of transcription (STAT) proteins represent novel therapeutic targets for the treatment of cancer. In particular, STAT-3 serves critical roles in several cellular processes, including the cell cycle, cell proliferation, cellular apoptosis and tumorigenesis. Persistent activation of STAT-3 has been reported in a variety of cancer types, and a poor prognosis of cancer may be associated with the phosphorylation level of STAT-3.

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Epigallocatechin gallate (EGCG) is an inhibitor of DYRK1A, a serine/threonine kinase considered to be a major contributor of cognitive dysfunctions in Down syndrome (DS). Two clinical trials in adult patients with DS have shown the safety and efficacy to improve cognitive phenotypes using commercial green tea extract containing EGCG (45% content). In the present study, we performed a preclinical study using FontUp, a new nutritional supplement with a chocolate taste specifically formulated for the nutritional needs of patients with DS and enriched with a standardized amount of EGCG in young mice overexpressing (TgBACDyrk1A).

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Protostane triterpenes, which are found in Alisma orientale, are tetracyclic triterpenes with distinctive pharmacological activities. The natural distribution of protostane triterpenes is limited mainly to members of the botanical family Alismataceae. Squalene epoxidase (SE) is the key rate-limiting enzyme in triterpene biosynthesis.

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Anti-apoptotic protein-5 (API-5) is a survival protein interacting with the protein acinus, preventing its cleavage by caspase-3 and thus inhibiting apoptosis. We studied the effect of targeting API-5 in chemoresistant triple negative breast cancers (TNBCs), to reverse chemoresistance. 78 TNBC biopsies from patients with different responses to chemotherapy were analysed for API-5 expression before any treatment.

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Selaginella tamariscina (Beauv.) spring, a primitive vascular resurrection plant, can survive extreme drought and recover when water becomes available. To identify drought-inducible genes and to clarify the molecular mechanism of drought tolerance, a comparative transcriptional pattern analysis was conducted between S.

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Signal transducer and activator of transcription 3 (STAT3) protein frequently overexpressed in many malignancies and plays an essential role in regulating proliferation, apoptosis, migration and invasion in cancer cells. However, No STAT3 inhibitor was used clinically. In this study, we evaluated the toxic potential of a novel STAT3 inhibitor, 6Br-6a in breast cancer cell lines.

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Epidemiological data suggest an increased risk of developing Alzheimer's disease (AD) in individuals with type 2 diabetes (T2D). AD is anatomically associated with an early progressive accumulation of Aβ leading to a gradual Tau hyperphosphorylation, which constitute the main characteristics of damaged brain in AD. Apart from these processes, mounting evidence suggests that specific features of diabetes, namely impaired glucose metabolism and insulin signaling in the brain, play a key role in AD.

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Recent evidences suggest the involvement of DYRK1A (dual specificity tyrosine phosphorylation-regulated kinase 1 A) in Alzheimer's disease (AD). Here we showed that DYRK1A undergoes a proteolytic processing in AD patients hippocampus without consequences on its kinase activity. Resulting truncated forms accumulate in astrocytes and exhibit increased affinity towards STAT3ɑ, a regulator of inflammatory process.

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