Publications by authors named "Weihong Liu"

The buried interface in inverted perovskite solar cells (PSCs) is critical for determining device performance. However, during annealing, the perovskite crystallized downward from the film's top surfaces, and the use of dimethyl sulfoxide (DMSO) often resulted in voids at the perovskite bottom surface, which negatively impacted PSC performance. In this study, a green solid-state additive, piracetam (PA), was introduced into a perovskite precursor to reduce void formation.

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Adjusting the hole transport layer (HTL) to optimize its interface with perovskite is crucial for minimizing interface recombination, enhancing carrier extraction, and achieving efficient and stable inverted perovskite solar cells (PSCs). However, as a commonly used HTL, the self-assemble layer (SAM) of [2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl] phosphonic acid (MeO-2PACz) tends to form clusters and micelles during the deposition process, leading to inadequate coverage of the ITO substrate. Here, a Co-SAM strategy is employed by incorporating 4-mercaptobenzoic acid (SBA) and 4-trifluoromethyl benzoic acid (TBA) as additives into MeO-2PACz to fabricate a Co-SAM-based HTL.

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Article Synopsis
  • Developing efficient low-Pt catalysts for the oxygen reduction reaction (ORR) is essential for improving fuel cell performance, as existing high-performing catalysts often use over 70% Pt or are not durable when Pt levels are reduced.
  • The study presents a new multicomponent solid-solution catalyst, Pt(FeCoNi), supported by a high-entropy metallic glass, achieving a low Pt loading of 5.79 µg/cm while showing mass and specific activities that are approximately 15 and 22 times higher than conventional commercial Pt/C.
  • The catalyst maintains exceptional durability, displaying negligible activity decay after 50,000 potential cycles, thanks to a unique mechanism where the support material compensates for the loss of active surface area
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Background: Mesial temporal lobe epilepsy (MTLE) epileptiform discharges have been reported to arise from the hippocampus or the extrahippocampal medial temporal cortex, such as the amygdala, and then propagate to the temporal lobe cortex. The surgical ablation of which of these structures would result in a better postoperative outcome is debatable.

Objective: To assess the possible factors that might have influenced the postoperative outcome of a group of drug-resistant mesial MTLE patients who underwent stereoelectroencephalography (SEEG)-guided radiofrequency thermocoagulation (RFTC).

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Bacteria within the family show promising potential for applications in various fields, garnering significant research attention. Three Gram stain-negative bacteria, strains CPCC 101601, CPCC 101403, and CPCC 100767, were isolated from diverse environments: freshwater, rhizosphere soil of , and the phycosphere, respectively. Analysis of their 16S rRNA gene sequences, compared with those in the GenBank database, indicated that they belong to the family , with nucleotide similarities of 92.

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Article Synopsis
  • The study evaluated the effectiveness of 24-hour video-EEG monitoring in 232 children with epilepsy, analyzing how quickly interictal epileptiform discharges (IEDs) and seizures were detected.
  • Findings showed that 4 hours of monitoring was sufficient for detecting IEDs, while 1 hour was enough for children with generalized epilepsy, with 96.7% of self-limited focal epilepsy patients showing IEDs within the first hour.
  • The overall detection rate for clinical events was 19.3%, indicating that while 24-hour monitoring is useful, shorter durations can be effective in certain cases.
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Background: Surgical resection is the primary treatment for gastrointestinal (GI) cancers, but postoperative skeletal muscle loss (SML) is common and linked to poor prognosis. This study aims to identify patterns of muscle change, examine its association with quality of life (QoL), and explore predictors of SML in the first 3 months.

Patients And Methods: A prospective cohort study was conducted on patients newly diagnosed with GI cancer and undergoing surgery in China between September 2021 and May 2022.

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Acute lung injury (ALI) is caused by a variety of intrapulmonary and extrapulmonary factors and is associated with high morbidity and mortality. Oxidative stress is an important part of the pathological mechanism of ALI. Ferroptosis is a mode of programmed cell death distinguished from others and characterized by iron-dependent lipid peroxidation.

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Natural reserves (NRs) play key roles in habitat integrity conservation and biodiversity loss mitigation, and the assessment of the conservation effectiveness of NRs is needed to better manage them. Habitat quality (HQ) comprehensively reflects habitat integrity and biodiversity, but the conservation effectiveness of NRs from the perspective of HQ has rarely been determined at high spatial resolution. Taking the southern section of the Hengduan Mountains (SSHM) in Southwest China as an example, combining an InVEST-HQ model and spatiotemporal change detection methods, the effectiveness of NRs from the perspective of HQ at 30-m spatial resolution was assessed in this study.

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Background: ALI/ARDS is a syndrome of acute onset characterized by progressive hypoxemia and noncardiogenic pulmonary edema as the primary clinical manifestations. Necroptosis is a form of programmed cell necrosis that is precisely regulated by molecular signals. This process is characterized by organelle swelling and membrane rupture, is highly immunogenic, involves extensive crosstalk with various cellular stress mechanisms, and is significantly implicated in the onset and progression of ALI/ARDS.

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Objective: To observe the multi-slice spiral CT angiography (MSCTA) imaging features of arteriovenous fistula dysfunction in patients undergoing maintenance hemodialysis and analyze the significance of the imaging examination.

Methods: Altogether 90 patients with end-stage renal disease treated by maintenance hemodialysis in General Hospital of China Resources & Wisco from June 2020 to February 2023 were divided into a normal function group (n=68) and a dysfunction group (n=22) according to the function of autogenous arteriovenous fistula. The clinical data of the two groups were recorded.

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Transgene silencing is a common phenomenon observed in , particularly in the germline, but the precise mechanisms underlying this process remain elusive. Through an analysis of the transcription factors profile of , we discovered that the expression of several transgenic reporter lines exhibited tissue-specific silencing, specifically in the intestine of . Notably, this silencing could be reversed in mutants defective in endogenous RNA interference (RNAi).

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The development of low-cost and high-efficiency catalysts for the hydrolytic dehydrogenation of ammonia borane (AB, NHBH) is still a challenging technology. Herein, ultrafine MoO-doped Ni nanoparticles (~3.0 nm) were anchored on g-CN@glucose-derived nitrogen-doped carbon nanosheets via a phosphate-mediated method.

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The determination of impact sensitivity of energetic materials traditionally relies on expensive and safety-challenged experimental means. This has instigated a shift towards scientific computations to gain insights into and predict the impact response of energetic materials. In this study, we refine the phonon-vibron coupling coefficients in energetic materials subjected to impact loading, building upon the foundation of the phonon up-pumping model.

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Invariant cell lineage in C. elegans enables spatiotemporal resolution of transcriptional regulatory mechanisms controlling the fate of each cell. Here, we develop RAPCAT (Robust-point-matching- And Piecewise-affine-based Cell Annotation Tool) to automate cell identity assignment in three-dimensional image stacks of L1 larvae and profile reporter expression of 620 transcription factors in every cell.

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The genus Lilium has been widely used worldwide as a food and medicinal ingredient in East Asia for over 2000 years due to its higher nutritional and medicinal value. Polysaccharide is the most important bioactive ingredient in Lilium spp. and has various health benefits.

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Background: During unmanned aerial vehicles (UAVs) spraying, downwash and crosswind generate back pressure in comprehensive, which changes in spatial atomization characteristics of spraying droplets. However, the process of such atomization characteristics needs to be clarified. This study focuses on the effect of rotor speed and crosswind speed on spatial atomization characteristics.

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Sepsis is an uncontrolled host response to infection, resulting in a clinical syndrome involving multiple organ dysfunctions. Cardiac damage is the most common organ damage in sepsis. Uncontrolled inflammatory response is an important mechanism in the pathogenesis of septic cardiomyopathy (SCM).

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Tomato (Solanum lycopersicum) is one of the most important vegetable crops in the world and abiotic stresses often cause serious problems in tomato production. It is thus important to identify new regulators in stress response and to devise new approaches to promote stress tolerance in tomato. Previous studies have shown that small secreted peptides (SSPs) are important signal molecules regulating plant growth and stress response by mediating intercellular communication.

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Background: Prostate cancer (PCa) is the most diagnosed cancer in Australian men, and the number of survivors is growing with advances in diagnosis and treatment. Work participation following PCa diagnosis and treatment becomes a significant aspect of quality of life and survivorship. Using a qualitative phenomenological approach, we explored the work-related experiences of PCa survivors in Australia.

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Purpose: HBV functional cure is an optimal treatment goal for chronic hepatitis B (CHB) at present and numerous new drugs aiming for HBV functional cure are in development. We carried out an internet-based survey to understand the treatment status, unmet needs, awareness of HBV functional cure and attitude toward related clinical trials among CHB patients in China.

Patients And Methods: An internet-based anonymous survey was conducted on CHB patients who reside in mainland China.

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Objective: To investigate the involvement of endothelial cells (ECs)-derived exosomes in the anti-apoptotic effect of Danhong Injection (DHI) and the mechanism of DHI-induced exosomal protection against postinfarction myocardial apoptosis.

Methods: A mouse permanent myocardial infarction (MI) model was established, followed by a 14-day daily treatment with DHI, DHI plus GW4869 (an exosomal inhibitor), or saline. Phosphate-buffered saline (PBS)-induced ECs-derived exosomes were isolated, analyzed by miRNA microarray and validated by droplet digital polymerase chain reaction (ddPCR).

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Background: Deep-learning object detection has been applied in various industries, including healthcare, to address hair loss.

Methods: In this paper, YOLOv5 object detection algorithm was used to detect hair follicles in a small and specific image dataset collected using a specialized camera on the scalp of individuals with different ages, regions, and genders. The performance of YOLOv5 was compared with other popular object detection models.

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