Over the past 30 years,additive manufacturing(AM)has developed rapidly and has demonstrated great potential in biomedical applications.AM is a materials-oriented manufacturing technology,since the solidification mecha...Over the past 30 years,additive manufacturing(AM)has developed rapidly and has demonstrated great potential in biomedical applications.AM is a materials-oriented manufacturing technology,since the solidification mechanism,architecture resolution,post-treatment process,and functional application are based on the materials to be printed.However,3D printable materials are still quite limited for the fabrication of bioimplants.In this work.2D/3D AM materials for bioimplants are reviewed.Furthermore,inspired by Tai Chi,a simple yet novel soft/rigid hybrid 4D AM concept is advanced to develop complex and dynamic biological structures in the human body based on 4D printing hybrid ceramic precursor/ceramic materials that were previously developed by our group.With the development of multi-material printing technology,the development of bioimplants and soft/rigid hybrid biological structures with 2D/3D/4D AM materials can be anticipated.展开更多
Hydroxyapatite (HA) is effectively used as a bioimplant material because it closely resembles bone apatite and exhibits good biocompatibility. This paper describe synthesis technique of HA powder by sol-gel method. Th...Hydroxyapatite (HA) is effectively used as a bioimplant material because it closely resembles bone apatite and exhibits good biocompatibility. This paper describe synthesis technique of HA powder by sol-gel method. The product was sintered twice at two different temperatures 400°C to 750°C to improve its crystallinity. The final powder sintered at two temperatures was characterized by X-ray analysis, Scanning electron microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FT-IR) to reveal its phase content, morphology and types of bond present within it. Thermal analysis (TG–DTA) was carried out to investigate the thermal stability of the powder.展开更多
Detecting and diagnosing neurological diseases in modern healthcare presents substantial challenges that directly impact patient outcomes.The complex nature of these conditions demands precise and quantitative monitor...Detecting and diagnosing neurological diseases in modern healthcare presents substantial challenges that directly impact patient outcomes.The complex nature of these conditions demands precise and quantitative monitoring of disease-associated biomarkers in a continuous,real-time manner.Current chemical sensing strategies exhibit restricted clinical effectiveness due to labor-intensive laboratory analysis prerequisites,dependence on clinician expertise,and prolonged and recurrent interventions.Bio-integrated electronics for chemical sensing is an emerging,multidisciplinary field enabled by rapid advances in electrical engineering,biosensing,materials science,analytical chemistry,and biomedical engineering.This review presents an overview of recent progress in bio-integrated electrochemical sensors,with an emphasis on their relevance to neuroengineering and neuro-modulation.It traverses vital neurological biomarkers and explores bio-recognition elements,sensing strategies,transducer designs,and wireless signal transmission methods.The integration of in vivo biochemical sensors is showcased through applications.The review concludes by outlining future trends and advancements in in vivo electrochemical sensing,and highlighting ongoing research and technological innovation,which aims to provide inspiring and practical instructions for future research.展开更多
基金This work was supported by the National Key R&D Program of China(2017YFA0204403)the Major Program of the National Natural Science Foundation of China(51590892)+3 种基金the General Research Fund Research Grants Council(Hong Kong)(CityU 11209918)the Hong Kong Collaborative Research Fund Scheme(C4026-17W)the Hong Kong Theme-based Research Scheme(T13-402/17-N)the Shenzhen-Hong Kong cooperation zone for technology and innovation(HZQB-KCZYB-2020030).
文摘Over the past 30 years,additive manufacturing(AM)has developed rapidly and has demonstrated great potential in biomedical applications.AM is a materials-oriented manufacturing technology,since the solidification mechanism,architecture resolution,post-treatment process,and functional application are based on the materials to be printed.However,3D printable materials are still quite limited for the fabrication of bioimplants.In this work.2D/3D AM materials for bioimplants are reviewed.Furthermore,inspired by Tai Chi,a simple yet novel soft/rigid hybrid 4D AM concept is advanced to develop complex and dynamic biological structures in the human body based on 4D printing hybrid ceramic precursor/ceramic materials that were previously developed by our group.With the development of multi-material printing technology,the development of bioimplants and soft/rigid hybrid biological structures with 2D/3D/4D AM materials can be anticipated.
文摘Hydroxyapatite (HA) is effectively used as a bioimplant material because it closely resembles bone apatite and exhibits good biocompatibility. This paper describe synthesis technique of HA powder by sol-gel method. The product was sintered twice at two different temperatures 400°C to 750°C to improve its crystallinity. The final powder sintered at two temperatures was characterized by X-ray analysis, Scanning electron microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FT-IR) to reveal its phase content, morphology and types of bond present within it. Thermal analysis (TG–DTA) was carried out to investigate the thermal stability of the powder.
基金supported by The Ohio State University start-up funds and the Chronic Brain Injury Pilot Award Program at The Ohio State UniversityThis work was also supported by the Ohio State University Ma-terials Research Seed Grant Program,funded by the Center for Emergent Materials+2 种基金NSF-MRSEC,grant DMR-2011876the Center for Exploration of Novel Complex Materialsthe Institute for Materials Research.J.L.acknowledges the support from National Science Foundation award ECCS-2223387.
文摘Detecting and diagnosing neurological diseases in modern healthcare presents substantial challenges that directly impact patient outcomes.The complex nature of these conditions demands precise and quantitative monitoring of disease-associated biomarkers in a continuous,real-time manner.Current chemical sensing strategies exhibit restricted clinical effectiveness due to labor-intensive laboratory analysis prerequisites,dependence on clinician expertise,and prolonged and recurrent interventions.Bio-integrated electronics for chemical sensing is an emerging,multidisciplinary field enabled by rapid advances in electrical engineering,biosensing,materials science,analytical chemistry,and biomedical engineering.This review presents an overview of recent progress in bio-integrated electrochemical sensors,with an emphasis on their relevance to neuroengineering and neuro-modulation.It traverses vital neurological biomarkers and explores bio-recognition elements,sensing strategies,transducer designs,and wireless signal transmission methods.The integration of in vivo biochemical sensors is showcased through applications.The review concludes by outlining future trends and advancements in in vivo electrochemical sensing,and highlighting ongoing research and technological innovation,which aims to provide inspiring and practical instructions for future research.
