Publications by authors named "Xiaozeng Li"
Article Synopsis
- The study investigates how heart failure education impacts treatment outcomes for patients with decreased nonvalvular ejection fraction.
- It compares 60 patients who received heart failure education versus those who received standard care, assessing various health indicators and event occurrences.
- Results show that education significantly improves treatment effectiveness, lowers adverse event rates, and enhances patients' self-management skills, suggesting it should be widely adopted in clinical settings.
Article Synopsis
- Many current deep learning image denoising algorithms overlook the fine details between semantic and pixel features, which can affect the quality of the output images.
- The proposed DTS network uses a dual-path Transformer with separate "semantic" and "pixel" paths to enhance feature extraction by processing global and fine-grained details simultaneously.
- Evaluations show that DTS significantly improves key performance metrics like PSNR and SSIM, while qualitatively demonstrating effective noise suppression and preservation of important image structures in medical ultrasound images.
Article Synopsis
- Low-dose computed tomography (LDCT) reduces radiation exposure but increases image noise, complicating clinical diagnosis.
- Current deep learning methods like convolutional neural networks (CNNs) struggle with complex structures, while transformers can model global information but are computationally expensive.
- The paper proposes a hybrid CNN-Transformer model (HCformer) for denoising LDCT images, using innovative techniques to improve image quality and reduce computation costs, with promising results demonstrated through extensive experiments.
A pair of enantiomeric ligands, (2R,3R)-dibenzyl-2,3-bis(isonicotinoyloxy)succinate ((R,R)-L) and (2S,3S)-dibenzyl-2,3-bis(isonicotinoyloxy)succinate ((S,S)-L), are designed and synthesized. Seven copper (II) coordination polymers {[Cu((R,R)-L)Br (THF)] ⋅ CH CN} (1 a) and {[Cu((S,S)-L)Br (THF)] ⋅ CH CN} (1 b), {[Cu((R,R)-L)Cl (THF)] ⋅ CH CN} (2 a) and {[Cu((S,S)-L)Cl (THF)] ⋅ CH CN} (2 b), {[Cu((R,R)-L)(NO ) (CH CN)]} (3 a) and {[Cu((S,S)-L)(NO ) (CH CN)]} (3 b), {[Cu((R,R)-L) (CH CN) ](ClO ) ⋅ 3CH CN} (4) were obtained through the assemblies with CuBr , CuCl ⋅ 2H O, Cu(NO ) ⋅ 3H O, Cu(ClO ) ⋅ 6H O, respectively. Single-crystal X-ray diffraction and circular dichroism analysis demonstrate that 1 a-3 a, 1 b-3 b have a mono chiral one-dimensional (1D) chain-like spiral structure, while 4 have 1D chain-like structure whose metal centers have chiral propeller coordination environment.
View Article and Find Full Text PDFA novel strategy for the growth of molecularly thin two-dimensional molecular crystals (2DMCs) of organic semiconductors with poor solubility was developed. Large-area bilayer 2DMCs were grown on a liquid surface at elevated temperatures, with record mobility and superior photoresponse.
View Article and Find Full Text PDFArticle Synopsis
- The study presents a new method using halogen-substituted chiral molecules to create unique 2D chiral perovskite materials that improve issues with weak light emission and low efficiency found in previous chiral perovskites.
- By introducing disorder in the structure, the materials exhibit broader photoluminescence spectra, benefiting from additional emissions from self-trapped excitons, leading to better light performance.
- The ability of halogen atoms to maintain chiral interactions enhances the material's properties, making them promising for various optoelectronic applications by improving photoluminescence quantum yield (PLQY) and reducing energy gaps.
Rapid, reliable and highly selective detection of mercury species, including Hg ions and organomercury, is of significant importance for environmental protection and human health. Herein, a new fluorescent dye 1,1,2,2-tetrakis[4-(3-methyl-1-benzimidazol-1-yl)phenyl ethylene tetraiodide () with aggregation-induced emission (AIE) potential was prepared and characterized. The presence of four positively charged methylated benzimidazole groups endows with excellent water solubility and almost undetectable background fluorescence.
View Article and Find Full Text PDFThe discovery of uncommon DNA structures and speculation about their potential functions in genes has brought attention to specific DNA structure recognition. G-quadruplexes are four-stranded nucleic acid structures formed by G-rich DNA (or RNA) sequences. G-rich sequences with a high potential to form G-quadruplexes have been found in many important genomic regions.
View Article and Find Full Text PDFNickel is considered a weak carcinogen. Some researches have shown that bound proteins or synthetic ligands may increase the toxic effect of nickel ions. A systematic study of ligand effects on the interaction between nickel complexes and DNA is necessary.
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