Publications by authors named "Qichao Li"

Flexible and wearable electronics often rely on piezoelectric materials, and Poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) membranes are popular for this application. However, their electromechanical performance is limited due to a relatively low piezoelectric coefficient. To address this, this study investigates the incorporation of zinc oxide (ZnO) nanorods (NRs) into a P(VDF-TrFE) nanofiber membrane matrix.

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Background: Single-cell multi-omics technologies, particularly single-cell RNA sequencing (scRNA-seq), have revolutionized our understanding of cellular heterogeneity and development by providing insights into gene expression at the single-cell level. Investigating the influence of genes on cellular behavior is crucial for elucidating cell fate determination and differentiation, cell development processes, and disease mechanisms.

Methods: Inspired by NLP, we present a novel scRNA-seq analysis method that treats genes as analogous to words.

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Article Synopsis
  • Monitoring tiny mechanical signals is crucial for fields like structural health and robotics, but traditional piezoelectric sensors struggle with directional detection and sensitivity to small changes.
  • The new vector sensor uses a composite of lead zirconate titanate and glass fiber to detect very slight shape changes, accurately identifying deformation directions even at a strain of just 0.06%.
  • This sensor boasts ultra-high sensitivity due to its unique design and can leverage machine learning to recognize 10 different textures with perfect accuracy, showcasing potential for improved mechanical signal detection.
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  • Early diagnosis of gastrointestinal diseases is crucial to prevent cancer, and capsule endoscopy (CE) offers a less painful alternative to traditional wired endoscopy.
  • A new technology called near-infrared fluorescence capsule endoscopy (NIFCE) can detect subtle lesions that standard CE struggles with, while also capturing normal white light images for clearer diagnostics.
  • NIFCE is designed with a system that allows for wireless energy supply and control, making it efficient for long-term use in identifying tumors while protecting healthy tissue, representing a major advancement in gastrointestinal disease diagnosis.
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  • The study looked at how stem cell treatments are being researched for spinal cord injuries from January 2018 to June 2023 to understand new trends and topics in the field.
  • It found that stem cell therapy helps reduce problems like inflammation and stress in the body that occur after such injuries.
  • The research revealed that China leads in this area, with significant contributions from the Chinese Academy of Sciences and key topics including hereditary paraplegia and tissue engineering.
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Background: Chronic cholecystitis, characterized by persistent inflammation of the gallbladder, predominantly stems from the prolonged presence of gallstones. Calculous cholecystitis has demonstrated a consistent escalation in its incidence over time.Gallbladder stones have been recognized as a predisposing factor for the development of biliary tract infections.

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Infrared detectors have broad application prospects in the fields of detection and communication. Using ideal materials and good device structure is crucial for achieving high-performance infrared detectors. Here, we utilized black phosphorus (BP) and single-walled carbon nanotube (SWCNT) films to construct a vertical van der Waals heterostructure, resulting in high-performance photovoltaic infrared detectors.

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Two-dimensional (2D) black phosphorus (BP) is considered an ideal building block for field-effect transistors (FETs) owing to its unique structure and intriguing properties. To achieve high-performance BP-FETs, it is essential to establish a reliable and low-resistance contact between the BP and the electrodes. In this study, we employed a localized Joule heating method to improve the contact between the 2D BP and gold electrodes, resulting in enhanced BP-FET performance.

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Since a planar periodic transmission line can suppress drastically the electromagnetic coupling, it would be advantageous to use such a kind of transmission lines in solving the problem of miniaturization of circuit area. By adjusting the lattice constants and geometric parameters of periodic microstrip lines, a time domain characteristic impedance that is the same as that of conventional microstrip lines (CMLs) can be achieved. Such periodic microstrip lines can therefore be used to trick high-speed digital signals, causing a digital signal to misjudge the time domain characteristic impedance of the transmission lines.

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Introduction: has been known to cause various human infections. It is naturally resistant to vancomycin and is difficult to identify using traditional methods, which may lead to misidentification and delay treatment.

Case Presentation: We present a case of a 42-year-old male patient with gastrointestinal bleeding and coronary heart disease who developed sepsis caused by .

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Wearable strain sensors can transfer human physical motions into digital features and connect the real world to the virtual world. However, there is still a huge challenge to prepare breathable strain sensors with good sensitivity, stretchability, softness, durability, and biocompatibility, simultaneously. Herein, we employ the soft silicone elastomer as a highly stretchable substrate and propose a new strain sensor based on the carbon nanotubes@porous soft silicone elastomer (CNTs@PSSE) by salt-template-assisted and dip-coating methods.

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Materials in nature feature versatile and programmable interactions to render macroscopic architectures with multiscale structural arrangements. By rationally combining metal-carboxylate and metal-organophosphate coordination interactions, Au(MHA) (MHA, 6-mercaptohexanoic acid) nanocluster self-assembled structural color coating films and phytic acid (PA)-metal coordination complexes are sequentially constructed on the surface of titanium implants. The Lewis acid-base coordination principle applies for these metal-organic coordination networks.

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Gastric cancer cell-derived exosomes as biomarkers have a very high application potential to the non-invasive detection of early-stage gastric cancer. However, the small size of exosomes (30-150 nm) results in huge challenges in separating and detecting them from complex media (e.g.

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  • * It uses a special nylon net coated with materials that help grab onto bilirubin and includes an ingredient that prevents blood from clotting.
  • * Tests showed that the AAM cleared up to 86.1% of bilirubin and worked well without causing blood issues, making it a promising option for blood treatment.
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A chemiresistive gas sensor based on a three-dimensional Ag-modified reduced graphene oxide (3D Ag-rGO) aerogel is reported. We improve the graphene-based sensor performance by optimization of operating temperature, chemical modification, and new design of the material geometrical structure. The self-assembly and Ag nanoparticle (NP) decoration of the Ag-rGO aerogel are realized by a facile, one-step hydrothermal method.

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Exosomes are secreted by most cell types and circulate in body fluids. Recent studies have revealed that exosomes play a significant role in intercellular communication and are closely associated with the pathogenesis of disease. Therefore, exosomes are considered promising biomarkers for disease diagnosis.

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  • Scientists studied if moving a certain nerve from the index finger to repair a damaged thumb nerve would work well.
  • They treated 23 patients who had thumb injuries caused by things like machines or sharp objects, and most of them healed well after the surgery.
  • The results showed that this method helped people feel better in their thumbs, making it a good option for thumb nerve repair.
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Malignant glioma is a highly aggressive brain tumor with a poor prognosis. Chemotherapy has been observed to prolong overall survival rate and temozolomide (TMZ), a promising chemotherapeutic agent for treating glioblastoma (GBM), possesses the most effective clinical activity at present, although drug resistance limits its clinical outcome. Growing evidence supports the concept that initial and recurrent GBM may derive from glioblastoma stem cells, which may be responsible for drug resistance.

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Objective: To investigate the effectiveness of cross finger flap pedicled with the dorsal branch of proper digital artery in repairing degloving injury of the fingertip.

Methods: Between January 2010 and June 2012, 13 cases of degloving injury of single fingertip were treated, including 9 males and 4 females with an average age of 33.6 years (range, 17-46 years).

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Objective: To evaluate the efficacy of albendazole (ABZ) orally administered at different dosages against Trichinella spiralis encapsulated larvae in striated muscle in mice.

Methods: A total of 72 BALB/c mice were divided equally into 9 groups. Each mouse was infected orally with 50 T.

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Article Synopsis
  • - The study investigates a surgical technique using an island flap to treat skin defects on the distal phalanges of fingers, specifically from the 2nd to 5th fingers.
  • - Over a period of five years, 54 patients with 61 affected fingers underwent this procedure, with outcomes showing complete survival of all flaps and good recovery in terms of texture, color match, and sensation.
  • - The island flap method was found to be effective and resulted in normal movement of the finger joints, making it a recommended approach for dealing with these types of injuries.
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  • The text is about a new way to design skin flaps for treating injuries, focusing on testing if this method actually works in real-life situations.
  • The study involved 89 patients with serious injuries from things like machine accidents and traffic accidents, where their skin was damaged.
  • The new flap design was successful, and all the patients healed well after the surgeries.
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