The manufacturing of inserts for micro injection moulding made of mortar material is presented in this work. The fabrication of the mortar insert described in this publication relied on a versatile and relatively fast rapid prototyping process based on soft tooling. The mortar insert has a QR code with micro features on its surface, which was replicated in acrylonitrile butadiene styrene (ABS) polymer by the micro injection moulding process. With this approach, it is possible to fabricate hard inserts for micro injection moulding purposes that are able to compete with conventional-made inserts made of tool steel.
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http://dx.doi.org/10.3390/mi12080857 | DOI Listing |
Biomater Transl
September 2024
Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan Province, China.
The treatment and repair of bone tissue damage and loss due to infection, tumours, and trauma are major challenges in clinical practice. Artificial bone scaffolds offer a safer, simpler, and more feasible alternative to bone transplantation, serving to fill bone defects and promote bone tissue regeneration. Ideally, these scaffolds should possess osteoconductive, osteoinductive, and osseointegrative properties.
View Article and Find Full Text PDFTo investigate the influence of cations on the microstructural characteristics of electrochemical reinforcement in soft clay, a study was conducted using three different cationic salt solutions-NaCl, CaCl₂, and FeCl₃-for grouting treatment. Four sets of indoor experiments were performed to examine the reinforcement mechanism of the electrochemical method. The findings indicate that increasing the valence of injected cations significantly affects the electrochemical reinforcement effect and the soil's microstructural properties.
View Article and Find Full Text PDFInt Immunopharmacol
December 2024
Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China; School of Clinical Medicine, Jining Medical University, Jining, China; Institute of Oral Basic Research, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University. Electronic address:
Diabetes exacerbates the occurrence and severity of periodontitis, the pathogenesis of diabetic periodontitis (DPD) is influenced by the delayed resolution of inflammation. Eldecalcitol (ED-71) has shown promise in preventing bone loss in DPD. We herein aimed to investigate the role of ED-71 in the inflammatory regression phase of DPD and elucidate the underlying mechanisms.
View Article and Find Full Text PDFBiomaterials
December 2024
School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, 300072, China.
In the immunosuppressive tumor microenvironment (TME), tumor-associated macrophages (TAMs) predominantly exhibit an immunosuppressive M2 phenotype, which facilitates tumor proliferation and metastasis. Although current strategies aimed at reprogramming TAMs hold promise, their sustainability and effectiveness are limited due to repeated injections. Herein, a bacterial therapy platform containing two engineered strains was developed.
View Article and Find Full Text PDFGels
November 2024
Department of Chemistry, Missouri University of Science and Technology, Rolla, MO 65409, USA.
A recrosslinkable CO-resistant branched preformed particle gel (CO-BRPPG) was developed for controlling CO injection conformance, particularly in reservoirs with super-permeable channels. Previous work focused on a millimeter-sized CO-BRPPG in open fractures, but its performance in high-permeability channels with pore throat networks remained unexplored. This study used a sandpack model to evaluate a micro-sized CO-BRPPG under varying conditions of salinity, gel concentration, and pH.
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