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A Forked Microvascular Phantom for Ultrasound Localization Microscopy Investigations.
IEEE Trans Ultrason Ferroelectr Freq Control
July 2024
In the development of ultrasound localization microscopy (ULM) methods, appropriate test beds are needed to facilitate algorithmic performance calibration. Here, we present the design of a new ULM-compatible microvascular phantom with a forked, V-shaped wall-less flow channel pair ( 250 μ m channel width) that is bifurcated at a separation rate of 50 μ m/mm. The lumen core was fabricated using additive manufacturing, and it was molded within a polyvinyl alcohol (PVA) tissue-mimicking slab using the lost-core casting method.
View Article and Find Full Text PDFEnhanced Electron Transfer Efficiency of Fructose Dehydrogenase onto Roll-to-Roll Thermal Stamped Laser-Patterned Reduced Graphene Oxide Films.
ACS Appl Mater Interfaces
May 2024
Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" Via R. Balzarini 1, Teramo 64100, Italy.
Herein, a strategy to stamp laser-produced reduced graphene oxide (rGO) onto flexible polymers using only office-grade tools, namely, roll-to-roll thermal stamping, is proposed, proving for the first time its effectiveness for direct bioelectrocatalysis. This straightforward, scalable, and low-cost approach allows us to overcome the limits of the integration of laser-induced rGO-films in bioanalytical devices. Laser-produced rGO has been thermally stamped (TS) onto different polymeric substrates (PET, PVC, and EVA) using a simple roll-laminator; the obtained TS-rGO films have been compared with the native rGO (untransferred) via morphochemical and electrochemical characterization.
View Article and Find Full Text PDFAn off-on fluorescence method for acid phosphatase assay based on the inner filter effect of MnO nanosheets on vitamin B.
Spectrochim Acta A Mol Biomol Spectrosc
July 2024
Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530003, China. Electronic address:
Fluorescence analysis has attracted much attention due to its rapidity and sensitivity. The present work describes a novel fluorescence detection method for acid phosphatase (ACP) on the basis of inner-filter effect (IFE), where MnO nanosheets (MnO NSs) and vitamin B (VB) are served as absorbers and fluorophores, respectively. In the absence of ACP, the absorption band of MnO NSs overlaps well with the excitation band of VB, resulting in effective IFE and inhibition of VB fluorescence.
View Article and Find Full Text PDF2D antiferromagnetic semiconducting FeCN with interesting properties.
Phys Chem Chem Phys
December 2023
State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China.
Two-dimensional magnetic materials have demonstrated favorable properties (, large spin polarization and net magnetization) for the development of next-generation spintronic devices. The discovery of such materials and insight into their magnetic coupling mechanism has become a research focus. Here, on the basis of first-principles structural search calculations, we have identified a fresh FeCN monolayer consisting of edge-sharing Fe triangle sublattices and FeCN rings, which integrates antiferromagnetism, semiconductivity, and planarity.
View Article and Find Full Text PDFNovel calcium phosphate cement with biofilm-inhibition and platelet lysate delivery to enhance osteogenesis of encapsulated human periodontal ligament stem cells.
Mater Sci Eng C Mater Biol Appl
September 2021
Department of Trauma and Joint Surgery, Shunde Hospital, Southern Medical University, Foshan, Guangdong, China; Department of Orthopaedic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China. Electronic address:
Osteomyelitis is caused by Staphylococcus aureus (S. aureus), with associated progressive bone loss. This study developed for the first time a calcium phosphate cement (CPC) for delivery of doxycycline (DOX) and human platelet lysate (hPL) to fight against S.
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