纽约法布罗大学：纳米粒子在磁场中加热以杀死癌症肿瘤

Nanoparticles Heat Up in Magnetic Field to Kill Cancer Tumors

　

2018年6月28日,

由布法罗大学的一个小组领导的一个研究小组已经开发出一种新的纳米颗粒，可以用来将肿瘤致死。锌铁氧体纳米粒子可以通过低强度的磁场激活，使该技术在临床应用。

这些纳米颗粒有望与抗体或其他靶向机制配对，而由病人身体附近的电磁体产生的快速交变磁场将使纳米颗粒升温。加热是局部的，所以对远离目标的组织应该没有什么负面影响。

“这种治疗只会使纳米颗粒所在的区域升温，而不会影响更远的健康组织，因此我们预计副作用不会太大，”该研究的负责人曾浩(音)说。“此外，用来激发粒子的磁场可以通过不需要任何接触或插入探针的仪器深入人体。”因此，这种疗法可以到达身体的某些部位，而这些部位不容易进行手术。

 

Nanoparticles Heat Up in Magnetic Field to Kill Cancer Tumors

JUNE 28TH, 2018

A team of researchers, headed by a group from University at Buffalo, has developed a new nanoparticle that can be used to cook tumors to death. The zinc ferrite nanoparticles can be activated by a low strength magnetic field, making the technology clinically applicable.

The nanoparticles will hopefully be paired with antibodies, or other targeting mechanisms, and a quickly alternating magnetic field, delivered by an electromagnet near the patient’s body, would make the nanoparticles heat up. The heating is localized, and so should have little negative effect on tissues away from the target.

“The treatment will only heat up the region where nanoparticles are without affecting healthy tissues that are further away, so we anticipate few side effects,” Said Hao Zeng, the leader of the study. “In addition, the magnetic field that’s used to excite the particles can penetrate deep into the body from an instrument that does not require any contact or insertion of probes. As such, the therapy can reach parts of the body that are not easily accessible to surgery.”

Study in journal Small: Maximizing Specific Loss Power for Magnetic Hyperthermia by Hard–Soft Mixed Ferrites…

https://www.medgadget.com/2018/06/nanoparticles-heat-up-in-magnetic-field-to-kill-cancer-tumors.html