Publications by authors named "Hao Luan"

Amidst the rising prevalence of respiratory diseases, the importance of effective lung treatment modalities is more critical than ever. However, current drug delivery systems face significant limitations that impede their efficacy and therapeutic outcome. Biohybrid microrobots have shown considerable promise for active in vivo drug delivery, especially for pulmonary applications via intratracheal routes.

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  • Cytokines play a significant role in inflammatory bowel disease (IBD), but traditional treatments often have side effects and are not always effective.
  • The newly developed biohybrid robotic system, known as "algae-MΦNP-robot," utilizes moving green microalgae and macrophage membrane-coated nanoparticles to actively neutralize cytokines in the colon.
  • This system, encapsulated in a protective oral capsule, has shown improved efficacy in regulating cytokine levels and promoting healing in a mouse model of IBD, while also maintaining a good safety profile.
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Lung metastasis poses a formidable challenge in the realm of cancer treatment, with conventional chemotherapy often falling short due to limited targeting and low accumulation in the lungs. Here, we show a microrobot approach using motile algae for localized delivery of drug-loaded nanoparticles to address lung metastasis challenges. The biohybrid microrobot [denoted "algae-NP(DOX)-robot"] combines green microalgae with red blood cell membrane-coated nanoparticles containing doxorubicin, a representative chemotherapeutic drug.

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We conducted this study to investigate the radioprotective effects of recombinant human thrombopoietin (rhTPO) on beagle dogs irradiated with 3.0 Gy 60Co gamma rays. Fifteen healthy adult beagles were randomly assigned to a control group with alleviating care, and 5 and 10 μg/kg rhTPO treatment group.

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  • The integration of microorganisms like microalgae with artificial components is leading to the development of promising biohybrid microrobots for various applications.
  • This review discusses the unique propulsion and phototaxis behaviors of different types of microalgae, essential for creating effective robotic systems.
  • The article also explores methods for improving the algae's surface and showcases applications such as drug delivery, imaging, and water purification, while considering future challenges and opportunities.
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Objective: To investigate the effect and relative mechanism of Recombinant Human Thrombopoietin (rhTPO) on long-term hematopoietic recovery in mice with acute radiation sickness.

Methods: Mice were intramuscularly injected with rhTPO (100 μg/kg) 2 hours after total body irradiation with Co γ-rays (6.5 Gy).

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Exposure to medium and high doses of ionizing radiation (IR) can induce long-term bone marrow (BM) suppression. We previously showed that recombinant human thrombopoietin (rhTPO) significantly promotes recovery from hematopoietic-acute radiation syndrome, but its effect on long-term BM suppression remains unknown. C57BL/6 mice were exposed to 6.

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Background: The significantly prognostic value of fibrinogen-to-albumin ratio (FAR) has been proved in patients with coronary artery disease and different oncologic disorders. This study aimed to investigate the predictive value of FAR for left ventricular systolic dysfunction (LVSD) in acute coronary syndromes (ACS) patients.

Methods: A total of 650 ACS patients after percutaneous coronary intervention (PCI) were eventually enrolled in the analysis.

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  • * These biomotors can carry various payloads, from small molecules to nanoparticles, while still functioning well under extreme conditions.
  • * Experiments in mice confirm successful delivery of model substances and show that adjusting the surface properties of the payloads can enhance their targeting within the GI tract, presenting a promising alternative to existing biohybrid platforms for biomedical use.
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Objective: To confirm the therapeutic effect of recombinant human thrombopoietin (rhTPO) on rhesus monkeys irradiated with 5.0 Gy Co γ-ray, and provide experimental basis for clinical treatment of similar patients.

Methods: Fourteen adult rhesus monkeys were irradiated with Co γ-ray on both sides at the dose of 5.

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  • Researchers are exploring the use of algae-based micromotors for better drug delivery through oral administration, addressing issues with previous micromotors that have short propulsion lifetimes.
  • The algae motors swim efficiently in intestinal fluids and were incorporated into pH-sensitive capsules, improving the delivery of drugs and fluorescent dyes specifically to the small intestines.
  • In tests with mice, these algae motors showed better distribution and retention of drug payloads in the gastrointestinal tract compared to traditional micromotors and passive nanoparticles, indicating their potential for enhanced biomedical applications.
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Objective: To study the effect of interleukin-6 (IL-6) gene deletion on radiation-induced hematopoietic injury in mice and relative mechanism.

Methods: Before and after whole body Co γ-ray irradiation, it was analyzed and compared that the difference of peripheral hemogram, bone marrow hematopoietic stem and progenitor cells conts in IL-6 gene knockout (IL-6) and wild-type (IL-6) mice and serum IL-6 and G-CSF expression levels in above- mentioned mouse were detected. Moreover, 30 days survival rate of IL-6 and IL-6 mice after 8.

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Similar to most visual animals, the crab relies predominantly on visual information to escape from predators, to track prey and for selecting mates. It, therefore, needs specialized neurons to process visual information and determine the spatial location of looming objects. In the crab , the Monostratified Lobula Giant type1 (MLG1) neurons have been found to manifest looming sensitivity with finely tuned capabilities of encoding spatial location information.

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Chitooligosaccharides (CHOS) with multiple biological activities are usually produced through enzymatic hydrolysis of chitosan or chitin. However, purification and recycling of the enzyme have largely limited the advancement of CHOS bioproduction. Here, we engineered a novel enzyme by fusing the native chitosanase Csn75 with a carbohydrate-binding module (CBM) that can specifically bind to curdlan.

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Structural design and componential optimization are two primary directions in the study of microwave absorbers. In this study, a novel cobalt ferrite (CoFeO) decorated with -phenylenediamine (PPD) functionalized graphene (PG/CoFeO) binary hybrid with unique hierarchical porous structure was synthesized by a two-step route. The chemical composition, morphology and electromagnetic parameters of the as-prepared sample were investigated successively.

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