98%
921
2 minutes
20
Case: A 7-year-old boy with severe congenital scoliosis and impending thoracic insufficiency syndrome underwent uneventful single magnetically controlled growing rod (MCGR) insertion and removal of his ipsilateral rib-based distraction implants at our institution. Intraoperative fluoroscopy imaging revealed an artifactual bend (S-distortion) of the rod actuator after placement. This artifact was eliminated by moving the image intensifier further from the patient.
Conclusion: We attributed the S-distortion to influences of magnetic fields within the MCGR actuator onto the image intensifier. Surgeons should be aware of such implications which can lead to misleading imaging artifacts. This is a first reported case of such incident with MCGR.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.2106/JBJS.CC.21.00418 | DOI Listing |
Analyst
September 2025
Functional Nanomaterial-based Chemical and Biological Sensing Technology Innovation Team of Department of Education of Yunnan Province, Yunnan Minzu University, Kunming 650504, P. R. China.
Copper ions are essential elements in the human body and participate in various physiological activities in the bodies of organisms. Herein, an ultrasensitive electrochemical biosensor was developed for detection of copper ions (Cu) based on FeO@Au magnetic nanoparticles (FeO@Au MNPs) and a Cu-dependent DNAzyme assisted nicking endonuclease signal amplification (NESA) strategy. dsDNA is formed by a hybridization reaction between DNA S2 and S1 immobilized on the surface of FeO@Au MNPs.
View Article and Find Full Text PDFNan Fang Yi Ke Da Xue Xue Bao
August 2025
Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
Objectives: To synthesize a temperature-responsive multimodal motion microrobot (MMMR) using temperature and magnetic field-assisted microfluidic droplet technology to achieve targeted drug delivery and controlled drug release.
Methods: Microfluidic droplet technology was utilized to synthesize the MMMR by mixing gelatin with magnetic microparticles. The microrobot possessed a magnetic anisotropy structure to allow its navigation and targeted drug release by controlling the temperature field and magnetic field.
Alzheimers Res Ther
September 2025
Motor Control and Learning Group, Institute of Human Movement Sciences and Sport, Department of Health Sciences and Technology, ETH Zurich, Leopold-Ruzicka-Weg 4, Zurich, 8093, Switzerland.
Small Methods
September 2025
School of Physics and Optoelectronics, South China University of Technology, Wushan Road 381, Guangzhou, 510640, China.
Magnetic-field enhancement of the oxygen evolution reaction (OER) represents a promising route toward more efficient alkaline water electrolyzers, yet its origin remains debated due to overlapping effects of mass transport and reaction kinetics. Here, we present a general experimental strategy that employs strong forced convection to suppress uncontrolled transport arising from natural diffusion and magnetohydrodynamic (MHD) flows. Using polycrystalline Au electrodes, we show that this approach resolves subtle OER variations under controlled flow and field conditions.
View Article and Find Full Text PDFNat Mater
September 2025
State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China.
Small-scale magnetically actuated catheters capable of remote active navigation have promising applications in minimally invasive surgeries. However, existing fabrication techniques hinder their integration with multimodal sensing components, especially since embedding rigid electronic components within the catheters may diminish their flexibility and controllability. Here we report a magnetically actuated bioelectronic catheter with the in situ multiplexed biosensing of multiple types of metabolite or ion simultaneously.
View Article and Find Full Text PDF