Publications by authors named "Su Lizhong"

Thermoelectrics can mutually convert between thermal and electrical energy, ensuring its utilization in both power generation and solid-state cooling. BiTe exhibits promising room-temperature performance, making it the sole commercially available thermoelectrics to date. Guided by the lattice plainification strategy, we introduce trace amounts of Cu into n-type Bi(Te, Se) (BTS) to occupy Bi vacancies, thereby simultaneously weakening defect scattering and modulating the electronic bands.

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Thermoelectric cooling technology has important applications for processes such as precise temperature control in intelligent electronics. The bismuth telluride (BiTe)-based coolers currently in use are limited by the scarcity of Te and less-than-ideal cooling capability. We demonstrate how removing lattice vacancies through a grid-design strategy switched PbSe from being useful as a medium-temperature power generator to a thermoelectric cooler.

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Article Synopsis
  • This study focuses on improving p-type PbSe for thermoelectric applications like power generation and refrigeration by enhancing carrier mobility through lattice plainification.
  • By growing Cu-doped p-type PbSe crystals via physical vapor deposition, researchers achieved a high carrier mobility of approximately 2578 cm/V·s, resulting in notable thermoelectric properties.
  • The optimized PbCuSe shows a power factor of around 42 µW/cm·K and a ZT value that can reach 0.9 across a temperature range of 300-573 K, demonstrating its potential to compete with commercial BiTe in both power generation efficiency and cooling applications.
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Background: Severe eosinophilic chronic rhinosinusitis with nasal polyps (ECRSwNP) remains the most relapsed subtype of uncontrolled CRSwNP. CM310, a humanised anti-interleukin (IL)-4 receptor alpha monoclonal antibody, inhibits IL-4 and IL-13 signaling which underlying eosinophilic inflammation. This study aims to evaluate the efficacy and safety of CM310 in patients with severe ECRSwNP.

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Thermoelectric technology has been widely used for key areas, including waste-heat recovery and solid-state cooling. We discovered tin selenide (SnSe) crystals with potential power generation and Peltier cooling performance. The extensive off-stoichiometric defects have a larger impact on the transport properties of SnSe, which motivated us to develop a lattice plainification strategy for defects engineering.

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Background: This study intends to use artificial microRNA (recombinant adenovirus vector) targeting epidermal growth factor receptor (EGFR) to inhibit the overexpressed EGFR in nasopharyngeal carcinoma, thereby inhibiting the proliferation and metastasis of nasopharyngeal carcinoma.

Method: The research group verified the expression of EGFR in nasopharyngeal carcinoma through databases, clinical tissues, and cellular pathways. The team first tested the transfection of the recombinant adenovirus by fluorescence microscopy.

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Article Synopsis
  • - Recent advancements in p-type SnS thermoelectric materials have been hindered by a lack of progress in n-type materials, which are crucial for device construction.
  • - Researchers have created n-type PbSnS through alloying with lead, achieving a promising maximum ZT (figure of merit) of ~1.2, thanks to improved power factors and very low thermal conductivity.
  • - By optimizing carrier concentration through Cl doping and utilizing multiple conduction bands, the PbSnS shows potential for efficient power generation, with a maximum efficiency of ~2.7% in a single-leg thermoelectric device.
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Thermoelectric generators enable the conversion of waste heat to electricity, which is an effective way to alleviate the global energy crisis. However, the inefficiency of thermoelectric materials is the main obstacle for realizing their widespread applications and thus developing materials with high thermoelectric performance is urgent. Here we show that multiple valence bands and strong phonon scattering can be realized simultaneously in p-type PbSe through the incorporation of AgInSe.

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Article Synopsis
  • Piezoelectric nanomaterials like SnSe enhance green catalysis, particularly in generating hydrogen from water using mechanical energy.
  • SnSe demonstrates outstanding piezoelectric properties, achieving a remarkable piezoelectric potential of 44.1 V and a record piezocurrent density of 0.3 mA cm under ultrasonic excitation.
  • The study reports an impressive hydrogen production rate of 948.4 µmol g h from SnSe nanosheets, surpassing many existing piezocatalysts and competing well with current photocatalysis technologies.
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Thermoelectric materials allow for direct conversion between heat and electricity, offering the potential for power generation. The average dimensionless figure of merit determines device efficiency. N-type tin selenide crystals exhibit outstanding three-dimensional charge and two-dimensional phonon transport along the out-of-plane direction, contributing to a high maximum figure of merit of ~3.

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Increasing evidence has shown that traditional Chinese medicines and their bioactive components exert an anti-tumor effect, representing a novel treatment strategy. Planch Root extracts (acRoots) have been reported to repress cancer cell proliferation and metastasis. The effect of acRoots on hypopharyngeal carcinoma progression was explored in this study.

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Cancer stem cells are closely associated with tumor metastasis or recurrence. According to previous literature reports, microRNA (miR)‑26a has an inhibitory effect on head and neck squamous cell carcinoma (HNSCC), and the long non‑coding RNA (lncRNA) non‑coding RNA activated by DNA damage (NORAD) has been found to interact with miR‑26a‑5p. The present study aimed to investigate the regulation and mechanism of NORAD and miR‑26a‑5p in the epithelial‑mesenchymal transition (EMT) of HNSCC stem cells.

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Laryngeal squamous cell carcinoma (LSCC) has poor prognosis, and the mechanism underlying the pathogenesis of LSCC remains unclear. Recently, a study has shown that long nonprotein coding RNA ferritin heavy chain 1 pseudogene 3 (FTH1P3) plays a crucial role in tumor pathogenesis. This study explored the potential role of FTH1P3 in LSCC.

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Maximal resection of tumor while preserving the adjacent healthy tissue is particularly important for larynx surgery, hence precise and rapid intraoperative histology of laryngeal tissue is crucial for providing optimal surgical outcomes. We hypothesized that deep-learning based stimulated Raman scattering (SRS) microscopy could provide automated and accurate diagnosis of laryngeal squamous cell carcinoma on fresh, unprocessed surgical specimens without fixation, sectioning or staining. : We first compared 80 pairs of adjacent frozen sections imaged with SRS and standard hematoxylin and eosin histology to evaluate their concordance.

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Cisplatin is one of the primary compounds used in the treatment of nasopharyngeal carcinoma (NPC), and fibroblast growth factor receptor 2 (FGFR2) has emerged to be a promising target for treatment in various tumors. Therefore, the present study aimed to explore whether the expression levels of FGFR2 in NPC tissues and cell lines were altered, and whether the efficiency of cisplatin was increased following the downregulation of FGFR2. The downregulation of FGFR2 was achieved by transfection with a small interfering RNA against FGFR2.

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In this work, we have mainly studied SERS spectra of fresh human urine by using Au nanoparticles excited by 785 and 1 030 nm lasers, respectively. And the UV/Vis adsorption experiment of the Au nanoparticles mixed with different ratio of urine has been performed, and the obvious shifting of corresponding absorption band is observed. The result showed that the Au nanoparticles which have been synthesized by classical Fren’s method can interact with urine, and the Au nanoparticles aggregations caused by the urine have strong SERS effect.

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Objective: To investigate the expression of CXCR4 in maxillary sinus carcinoma cells IMC3 under hypoxia.

Method: IMC3 cells were cultured for 6 h, 12 h, 24 h and 48 h under normoxia and hypoxia. Real-Time PCR was applied to detect the expression of mRNA of CXCR4 and immunohistochemisrty was applied to investigate its protein level.

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Objective: To investigate the correlation between intratumor microvessel density(IMVD) and lymph node micrometastases.

Method: IMVD and lymph node micrometastases were stained with CD105 and CK19 antibody by immunohistochemical method of SABC respectively.

Result: IMVD marked with CD105 antibody correlated with T stage and lymph node micrometastases (P < 0.

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B lymphocyte stimulator (BLyS), B cell activating factor (BAFF), a member of the tumor necrosis factor ligand superfamily has potent co-stimulatory activity on B cells, and BLyS-production in the airway mucosa is of potential importance as it triggers innate and adaptive immune responses. To investigate whether airway fibroblast could express BLyS, we examined BLyS-expression in human nasal airway fibroblasts and compared to its expression in tonsillar and skin fibroblasts as well as the effect of the Toll-like receptor (TLR) ligands on that in human nasal airway fibroblasts. The expression of BLyS by nasal fibroblasts in the presence of polyinocinic-polycytidykic acid (poly(I:C)) was markedly induced, to a level of more than 100 times higher than that observed in the absence of poly(I:C).

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