Multi-organ chips are effective at emulating human tissue and organ functions and at replicating the interactions among tissues and organs. An arrayed brain-heart chip was introduced whose configuration comprises open culture chambers and closed biomimetic vascular channels distributed in a horizontal pattern, separated from each other by an endothelial barrier based on fibrin matrix. A 300 μm-high and 13.
View Article and Find Full Text PDFContext: (SM) is a commonly used herb in traditional Chinese medicine (TCM) and has been used in the treatment of pancreatic cancer to relieve the symptom of "blood stasis and toxin accumulation." Tanshinones (Tan), the main lipophilic constituents extracted from the roots and rhizomes of SM, have been reported to possess anticancer functions in several cancers. But the mechanism of how the active components work in pancreatic cancer still need to be clarified.
View Article and Find Full Text PDFCisplatin-containing combination chemotherapy has been used as the standard treatment for bladder cancer patients at advanced stage. However, nearly 50% of patients are nonresponders. To guide the selection of more effective chemotherapeutic agents, a bladder cancer spheroids microfluidic drug sensitivity analysis system was established in this study.
View Article and Find Full Text PDFACS Appl Mater Interfaces
February 2024
Magnetic biomolecule-based bionic magnetic field sensors are anticipated to open up novel pathways for magnetic field detection. The detection range and accuracy of current bionic magnetic field sensors are limited, and little work is based on the capacitive response principle. We successfully developed a biochemical interface with an extralarge target-receptor size ratio, which can be manufactured in a single step for weak magnetic field detection across a wide frequency range, and we used electrochemical capacitance as a magnetic field change conduction strategy.
View Article and Find Full Text PDFThermal management, including heating and cooling, plays an important role in human productive activities and daily life. Nevertheless, in the actual environment, almost all the ambient scenarios come with the challenge that the objects are located in a quite dynamic and variable environment, which includes fluctuations in aspects such as space, time, sunlight, season, and temperature. It is imperative to develop low-energy or even zero-energy thermal-management technologies with renewable and clean energy.
View Article and Find Full Text PDFMagnetic skyrmions, topologically-stabilized spin textures that emerge in magnetic systems, have garnered considerable interest due to a variety of electromagnetic responses that are governed by the topology. The topology that creates a microscopic gyrotropic force also causes detrimental effects, such as the skyrmion Hall effect, which is a well-studied phenomenon highlighting the influence of topology on the deterministic dynamics and drift motion. Furthermore, the gyrotropic force is anticipated to have a substantial impact on stochastic diffusive motion; however, the predicted repercussions have yet to be demonstrated, even qualitatively.
View Article and Find Full Text PDFLiver fibrosis is a progressive physiological change that occurs after liver injury and seriously endangers human health. The lack of reliable and physiologically relevant pathological models of liver fibrosis leads to a longer drug development period and sizeable economic investment. The fabrication of a biomimetic liver-on-a-chip is significant for liver disease treatment and drug development.
View Article and Find Full Text PDFCancer cell spheroids have been shown to mimic in vivo tumour microenvironment and are therefore suitable for in vitro drug screening. Microfluidic technology can provide conveniences for spheroid assays such as high-throughput, simplifying manual operation and saving reagent. Here, we propose a concentration gradient generator based on microfluidic technology for cell spheroid culture and assay.
View Article and Find Full Text PDFRapid development of medical imaging, such as cellular tracking, has increased the demand for "live" contrast agents. This study provides the first experimental evidence demonstrating that transfection of the gene can impart magnetic resonance imaging (MRI) T-contrast properties to living prokaryotic () in the presence of Fe through the endogenous formation of iron oxide nanoparticles. The transfected gene markedly promoted uptake of exogenous iron by , achieving an intracellular co-precipitation condition and formation of iron oxide nanoparticles.
View Article and Find Full Text PDFMagnetic-sensitive proteins are regarded as key factors in animals' precise perception of the geomagnetic field. Accurate feedback on the response of these tiny proteins to magnetic fields remains a challenge. Here, we first propose a real-time accurate magnetic sensor based on the MagR/Cry4 complex-configured graphene transistor with an integrated on-chip gate.
View Article and Find Full Text PDFBackground: Tetrastigma hemsleyanum is a valuable traditional Chinese medicinal plant widely distributed in the subtropical areas of China. It belongs to the Cayratieae tribe, family Vitaceae, and exhibited significant anti-tumor and anti-inflammatory activities. However, obvious differences were observed on the quality of T.
View Article and Find Full Text PDFQuantification of tumor cell heterogeneity is critical for clinical diagnostic and therapeutic applications, including evaluation of the cancerous stage of tumors. In this work, we presented a novel method to effectively distinguish the grade of bladder cancer at a single-cell level in both cell line and clinical cell samples. This was achieved by taking advantage of microdroplets and microelectrodes, which can encapsulate and then trap single cells for measuring their impedance in a label-free and non-invasive manner.
View Article and Find Full Text PDFBackground: The Stephania tetrandra S. Moore (S. tetrandra) is a medicinal plant belonging to the family Menispermaceae that has high medicinal value and is well worth doing further exploration.
View Article and Find Full Text PDFInt J Educ Technol High Educ
July 2021
Unlike the other studies on emotional design in multimedia learning, the present study differentiated the two confounding variables of visual interface design and structured content to manipulate the instructional material. Specifically, we investigated how the visual aesthetics of positive emotional interface design influenced learners' cognitive processes, emotional valences, learning outcomes, and subjective experience. Eighty-one college students took part in the experimental study.
View Article and Find Full Text PDFRubus hirsutus is a type of tonifying kidney-essence herb that belongs to the Rosaceae family, and has been commonly used to treat multiple diseases, such as polyuria, impotence, and infertility. In this study, we determined the complete chloroplast sequence of R. hirsutus and conduced a comparative analysis within the genus Rubus.
View Article and Find Full Text PDFContext: A portion of patients with chronic myeloid leukaemia (CML) develop resistance to the Bcr-Abl tyrosine kinase inhibitors (TKIs), limiting the clinical applications. Previous results have demonstrated the synergistic effects between cryptotanshinone (CPT) and imatinib on apoptosis of CML cells .
Objective: To determine the antileukemia effects of CPT and TKIs on the resistant CML cells, and further investigate the effect of combined treatment of CPT and imatinib on tumour growth and apoptosis in the xenograft model and clarify its regulatory mechanisms.
Tanshinone I (Tan I) is one of the main bioactive ingredients derived from Salvia miltiorrhiza Bunge, which has exhibited antitumor activities toward various human cancer cells. However, its effects and underlying mechanisms on human chronic myeloid leukemia (CML) cells still require further investigation. This study determined the effects and mechanisms of anti-proliferative and apoptosis induction activity induced by Tan I against K562 cells.
View Article and Find Full Text PDFSheng Wu Yi Xue Gong Cheng Xue Za Zhi
February 2021
Unhealthy diet, habits and drug abuse cause a variety of liver diseases, including steatohepatitis, liver fibrosis, liver cirrhosis and liver cancer, which seriously affect human health. The fabrication of highly simulated cell models in vitro is important in the treatment of liver diseases and drug development. This article summarized the common strategies for the construction of liver pathology models .
View Article and Find Full Text PDFMitochondrial DNA B Resour
March 2021
DC. is an important medicinal and edible perennial herb belonging to the wood-sorrel family Oxalidaceae. In this study, we report the complete chloroplast (cp) genome sequence of .
View Article and Find Full Text PDFRamie ( L. Gaud) is a traditional fiber crop and important medicinal plant belonging to the family Urticaceae. In this study, we determine the complete chloroplast genome sequence of .
View Article and Find Full Text PDFIn this paper, ultrasensitive electrochemical determination of phosphate in water is achieved by using hydrophilic TiO modified glassy carbon electrodes for the first time. The differential pulse voltammetry (DPV) method is proposed to measure phosphate in water as pulse techniques offer higher sensitivity compared with the conventional cyclic voltammetry (CV) method. Hydrophilic TiO films were obtained upon ultraviolet (UV) illumination after TiO precursor emulsions were coated on the surfaces of glassy carbon electrodes, and used for phosphate determination.
View Article and Find Full Text PDFMitochondrial DNA B Resour
February 2020
is a geo-authentic and superior medicinal plant in Zhejiang province. Here, we report the complete chloroplast genome sequence of . The total genome size of is 153,405 bp in length, including a small single-copy (SSC) region of 16,969 bp, a large single-copy (LSC) region of 84,340 bp separated by a pair of inverted repeats (IRs) of 26,048 bp.
View Article and Find Full Text PDFMitochondrial DNA B Resour
November 2019
is an important medical plant in the Family Primulaceae. In this study, we determined the complete chloroplast genome of It is 155,618 bp in length, containing a large single copy (LSC) region of 85,615 bp, a small single copy (SSC) region of 17,861 bp, which were separated by a pair of inverted repeat (IR) regions of 26,071bp. The complete chloroplast genome of encoded a total of 134 genes, including 89 protein-coding genes with the pseudogene of ycf1, 8 ribosomal RNA genes and 37 transfer RNA genes.
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