Publications by authors named "Long Xiang"

Recent advancements have focused on developing nanoscale persistent room-temperature phosphorescence (pRTP) structures to expand their applicability in biomedical fields. Traditional fabrication methods typically produce surface-coated core-shell pRTP nanoparticles composed of nonbiocompatible pRTP emitters at very high concentrations in the core. To overcome this limitation, polymeric pRTP nanosystems have been presented in this study as a promising alternative by embedding RTP molecules within the biocompatible polymer matrix, thereby significantly reducing the required concentration of RTP molecules.

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Sodium carboxymethylcellulose (CMC) is a biocompatible and biodegradable derivative of cellulose, making it a promising material for biomedical applications. However, its poor stability in aqueous environments has significantly limited its use in long-term biomedical devices. Here, we present for the first time a simple and controllable method to enhance the wet stability of CMC coatings by cross-linking of CMC and polydopamine (PDA) and self-polymerization of PDA for widespread applications in biomedical devices.

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The cardiac microenvironment profoundly restricts the efficacy of myocardial regeneration tactics for the treatment of myocardial infarction (MI). A prospective approach for MI therapeutics encompasses the combined strategy of scavenging reactive oxygen species (ROS) to alleviate oxidative stress injury and facilitating macrophage polarization towards the regenerative M2 phenotype. In this investigation, we fabricated a ROS-sensitive hydrogel engineered to deliver our previously engineered IL-1β-VHH for myocardial restoration.

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Objective: To alleviate the economic burden of innovative drugs on patients in China, the government has been negotiating drug prices since 2016 to enhance their accessibility. This systematic review aimed to discuss the impact of the National Medication Price Negotiation Policy (NMPNP) on the accessibility of drugs in China in the years 2016-2024.

Design: Systematically reviewed the studies' findings and evaluated their quality using the Newcastle-Ottawa Scale (NOS) collaborative tool.

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Chlortetracycline (CTC), a widely used antibiotic, poses potential health risks due to its residues in animal products, making its detection crucial for environmental and human health. This study introduces a novel, rapid, and sensitive method for CTC detection utilizing nitrogen-doped green fluorescent carbon dots (G-CDs) synthesized through a simple hydrothermal process. The G-CDs exhibit strong green fluorescence and high quantum yield, demonstrating excellent selectivity and sensitivity for CTC detection.

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Pure organic thermally activated delayed fluorescence (TADF) materials hold great promise for efficient organic light-emitting diodes (OLEDs), yet developing high-performance blue TADF materials that integrate short delayed lifetime with aggregation-induced emission (AIE) properties remains a significant challenge. In this study, we developed three highly-efficient blue TADF emitters (32clCBP, 32clCXT and 32PclCXT) featuring AIE character by integrating rigid π-extended donors with different acceptors. Notably, the doped 32PclCXT film achieved an exceptionally high photoluminescence quantum efficiency of up to 99% and a short delayed lifetime of 1.

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The dose-response of intravenous lidocaine in preventing postoperative vomiting (POV) in children remains unclear. This study investigated whether intravenous lidocaine dose-dependently decreased POV risk within 24 h postoperatively in children undergoing tonsillectomy (with or without adenoidectomy) without severe complications. Patients aged 3-12 years (American Society of Anesthesiologists grade I-II) scheduled for elective tonsillectomy (with or without adenoidectomy) were enroled from December 2021 to March 2022.

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This study utilized a prospective, large-sample, multi-center, and registered key specialty approach of hospitals to monitor the application of Reduning Injection. A total of 100 249 adolescent patients aged 14 years and below who received Reduning Injection were monitored, resulting in 83 cases of adverse events, with 76 of them being classified as adverse drug reaction(ADR). The calculated incidence rate of ADR for Reduning Injection was 0.

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In this randomized controlled trial, 74 patients scheduled for gynecological laparoscopic surgery (American Society of Anesthesiologists grade I/II) were enrolled and randomly divided into two study groups: (i) Group C (control), received sufentanil (0.3 μg/kg) and saline, followed by sufentanil (0.1 μg/kg∙h) and saline; and (ii) Group F (OFA), received esketamine (0.

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Article Synopsis
  • The study examines how lipid metabolism is linked to Alzheimer's disease, highlighting its role in various disease processes like amyloid buildup and inflammation.
  • Researchers used bioinformatics to analyze lipid metabolism genes in the brains and blood of Alzheimer's patients, focusing on gene expression changes and their connection to disease symptoms and immune responses.
  • The findings reveal unique patterns of lipid metabolism in brain and immune cells, suggesting potential drug targets and diagnostic tools that could improve treatment strategies for Alzheimer's.
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Background: Opioids such as sufentanil are used as anaesthetics due to their rapid action and superior analgesic effect. However, sufentanil induces a huge cough in paediatric patients. In contrast, intravenous (IV) lidocaine suppresses opioid-induced cough in children, but its use is limited due to anaesthetists' concern about its toxicity.

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  • - The study focuses on the potential of argillaceous rock from the Yingejing Sag in Northwest China for high-level radioactive waste disposal, highlighting its unique composition mainly consisting of analcite, dolomite, and albite, with only 10% clay minerals.
  • - Geochemical analysis shows that this rock type is rich in deep-source gas and trace elements, and exhibits a specific distribution pattern of rare-earth elements.
  • - The petrological and geochemical traits indicate the rock's origin as lacustrine hydrothermal sedimentary rock, influenced by tectonic activity from the Altyn Tagh fault, suggesting it could serve as a suitable site for HLW disposal in China.
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The flavonoid naringenin is abundantly present in pomelo peels, and the unprocessed naringenin in wastes is not friendly for the environment once discarded directly. Fortunately, the hydroxylated product of eriodictyol from naringenin exhibits remarkable antioxidant and anticancer properties. The P450s was suggested promising for the bioconversion of the flavonoids, but less naturally existed P450s show hydroxylation activity to C3' of the naringenin.

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TiCu coatings with controlled copper release and nano-porous structures were fabricated as biocompatible, blood-contacting interfaces through a two-step process. Initially, coatings with 58 % Cu were created using HiPIMS/DC magnetron co-sputtering, followed by immersion in a dilute HF solution for varying durations to achieve dealloying. The presence of Ti elements in the as-deposited TiCu coatings facilitated their dissolution upon exposure to the dilute HF solution, resulting in the formation of nanopores and increased nano-roughness.

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  • Heart failure is a serious medical condition linked to abnormal atrial activity, increased stroke risk, and atrial remodelling due to oxidative stress; HACE1, a regulatory gene, may help protect the heart.
  • Researchers analyzed clinical data from heart failure patients and used mouse models to investigate gene expression and cardiac function through various assays.
  • The study found reduced HACE1 in heart failure cases linked to increased fibrosis; its up-regulation improved heart function and reduced oxidative stress, suggesting HACE1 as a potential therapeutic target by enhancing NRF2 activity.
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The rising occurrence of allergic asthma in early life across industrialized countries suggests that environmental factors play a crucial role in determining asthma susceptibility and severity. While prior exposure to microbial lipopolysaccharides (LPSs) has been found to offer protection against allergic asthma, infants residing in urban environments are increasingly exposed to environmental pollutants. Utilizing limulus lysate test screens and virtual screening models, we identified pollutants that can modulate LPS bioactivity.

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Cellobiose phosphorylase (CBP) catalyzes the reversible phosphorolysis of cellobiose into α-glucose 1-phosphate and glucose. A CBP with a broadened substrate specificity would be more desirable when utilized to convert cellulose into amylose (, 110: 7182-7187, 2013) and to construct yeast that can phosphorolytically use cellodextrin to produce ethanol. Based on the structure differences in the catalytic loops of CBP and cellodextrin phosphorylase from (named CtCBP and CtCDP, respectively), CtCBP was mutated to change its substrate specificity.

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Background: Preoperative anxiety often prevails in children at higher levels than adults, which is a common impediment for surgeons and anesthesiologists. It is of great necessity to explore an appropriate medication to improve this situation. Remimazolam, a type of benzodiazepine drug, has been indicated for the induction and maintenance of procedural sedation in adults since 2020.

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Heterocrystals consisting of multiple species have received wide attention owing to the advantage of the cooperative effect contributed by different functional counterparts; therefore, a controlled growth strategy is highly desired. Herein, we report an effective method to synthesize dumbbell-like Au-PtCu solid and hollow nanorods, regulated by the unique surface capping and oxidation etching roles of copper ions. Dumbbell-like nanorods are prepared through site-selective co-deposition of platinum and copper on both tips of gold nanorods assisted by the capping effect of the CTAB-Cu complex to passivate the side surface.

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Background: The omicron pandemic in Shanghai has created unprecedented challenges for pediatric medical institutions, and the work of pediatric nurses has changed rapidly due to the introduction of parent-child treatment. This study aimed to explore the experiences of pediatric nurses in the parent-child isolation unit of COVID-19-designated hospitals and provide a basis for developing feasible interventions as the next step.

Methods: Using phenomenological research methods, 12 nurses working in the parent-child isolation unit of Shanghai Children's Medical Center affiliated with Shanghai Jiao Tong University School of Medicine from April 1, 2022, to June 15, 2022, were selected by purposive sampling.

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Antibiotic resistance is propagating worldwide, but the predominant dissemination mechanisms are not fully understood. Here, we report that antibiotic resistance gene (ARG) abundance in conjugative plasmids that are recorded in the National Center for Biotechnology Information (NCBI) RefSeq plasmid database is increasing globally, which is likely a key factor in the propagation of resistance. ARG abundance in plasmids increased by 10-fold on a global scale from the year 2000 to the year 2020 (from 0.

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Article Synopsis
  • Drosophila melanogaster is a powerful model for studying diseases due to its genetic manipulation abilities and behavioral diversity, especially in assessing motor function impairments in conditions like neurodegenerative diseases.
  • A new evaluation method using AnimalTracker, compatible with the Fiji image processing program, has been developed to analyze movement in adult and larval flies from video recordings.
  • This method is cost-effective, requiring only a high-definition camera and computer tools, and effectively identifies behavioral changes in pharmacologically treated fly models.
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