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Magnetic nanoparticles (MNPs) have many applications which require MNPs to be captured and immobilized for their manipulation and sensing. For example, MNP sensors based on detecting changes to the ferromagnetic resonances of an antidot…

介观与纳米尺度物理 · 物理学 2023-08-29 Reyne Dowling , Mikhail Kostylev

In radiobiological experiments, the cells can either float in suspension or adhere to the walls of the sample holder. When irradiation is performed in the presence of dose modifying agents such as gold nanoparticles (AuNPs), the different…

医学物理 · 物理学 2025-12-04 Hans Rabus , Oswald Msosa Mkanda

The interaction of condensed phase systems with external electric fields is crucial in myriad processes in nature and technology ranging from the field-directed motion of cells (galvanotaxis), to energy storage and conversion systems…

化学物理 · 物理学 2024-09-25 Kit Joll , Philipp Schienbein , Kevin M. Rosso , Jochen Blumberger

Selective hysteretic heating of multiple collocated sets of single domain magnetic nanoparticles (SDMNPs) by alternating magnetic fields (AMFs) may offer a useful tool for biomedical applications. The possibility of magnetothermal…

医学物理 · 物理学 2015-06-19 Michael G. Christiansen , Ritchie Chen , Polina Anikeeva

We investigated whether we can detect enhanced magnetic nanoparticle uptake under application of a large magnetic force by tagging the particles with a fluorescent dye. Human liver cells were cultured in a micro-channel slide and exposed to…

生物物理 · 物理学 2021-01-11 Leon Abelmann , Eunheui Gwag , Baeckkyoung Sung

Magnetic fields interact with biological cells affecting them in variety of ways which are usually hard to predict. Among them, it was observed that strong fields can align dividing cells in a preferred direction. It was also demonstrated…

医学物理 · 物理学 2015-09-28 Stoyan Stoynev

In the 21st century, new and alternative non-radioactive methods for cancer treatment have been developed. One of this is magnetic hyperthermia (MH), which is based on the ability of magnetic nanoparticles (MNP) to transduce electromagnetic…

医学物理 · 物理学 2020-07-28 Christian Calvache , Jenny Mera-Córdoba , Diego F. Coral

We consider adiabatic superconducting cells operating as an artificial neuron and synapse of a multilayer perceptron (MLP). Their compact circuits contain just one and two Josephson junctions, respectively. While the signal is represented…

Purpose: The introduction of Gold NanoParticles (GNPs) in radiotherapy requires consideration of GNP size, location, and quantity, and more, as well as beam quality. The work is presented in two parts, with Part I (this work) investigating…

医学物理 · 物理学 2023-05-04 Martin P. Martinov , Elizabeth M. Fletcher , Rowan M. Thomson

Background: Biological effects of extra-low-frequency (ELF) magnetic fields (MFs) have lacked a credible mechanism of interaction between MFs and living material. Objectives: To examine the effect of ELF-MFs on cancer cells. Methods: Five…

组织与器官 · 定量生物学 2014-04-15 Ying Li

In recent years, magnetic particle spectroscopy (MPS) has become a highly sensitive and versatile sensing technique for quantitative bioassays. It relies on the dynamic magnetic responses of magnetic nanoparticles (MNPs) for the detection…

Ammonia poses significant environmental challenges due to its role in water pollution, contributing to eutrophication and several detrimental environmental and ecological issues. Addressing the efficient removal or conversion of ammonia is,…

Purpose: Pulsed-laser irradiation of light-absorbing gold nanoparticles (AuNPs) attached to cells transiently increases cell membrane permeability for targeted molecule delivery. Here, we targeted EGFR on the ovarian carcinoma cell line…

生物大分子 · 定量生物学 2018-10-09 Cuiping Yao , Florian Rudnitzki , Gereon Huettmann , Zhenxi Zhang , Ramtin Rahmanzadeh

Magnetic nanoparticle-based hyperthermia has emerged as a promising therapeutic modality for treating malignant solid tumors that exhibit resistance to conventional cancer treatments, including chemotherapy and radiation. Despite the…

介观与纳米尺度物理 · 物理学 2024-08-21 S. Scheibler , H. Wei , J. Ackers , S. Helbig , S. Koraltan , R. Peremadathil-Pradeep , M. Krupiński , M. Graeser , D. Suess , I. K. Herrmann , H. J. Hug

Antiferromagnets (AFs) are remarkable magnetically ordered materials that due to the absence of a net magnetic moment do not generate dipolar fields and are insensitive to external magnetic field perturbations. However, it has been…

We report laser-assisted photochemical graphitization of polyimides (PI) into functional magnetic nanocomposites using laser irradiation of PI in the presence of magnetite nanoparticles (MNP). PI Kapton sheets covered with MNP were…

材料科学 · 物理学 2023-11-09 Abhishek Sarkar , Ho-won Noh , Ikenna Nlebedim , Prana Shrotriya

Magnetic particle spectroscopy (MPS) is a technology that derives from magnetic particle imaging (MPI) and thrives as a standalone platform for many biological and biomedical applications, benefiting from the facile preparation and chemical…

应用物理 · 物理学 2020-03-24 Kai Wu , Jinming Liu , Diqing Su , Renata Saha , Vinit Kumar Chugh , Jian-Ping Wang

Dynamic nuclear polarization (DNP) is an NMR sensitivity enhancement technique that mediates polarization transfer from unpaired electrons to NMR-active nuclei. Despite its success in elucidating important structural information on…

Commercially successful magnetic tunnel junction can harness the unmatched capabilities of molecular device elements by solving decade-old fabrication issues. Utilization of magnetic tunnel junction as a testbed for molecules also enables…

材料科学 · 物理学 2020-08-10 Pawan Tyagi , Christopher Riso

There are several methods to improve cancer patient survival rates by inducing hyperthermia in tumor tissues, which involves raising their temperature above 41{\deg}C. These methods utilize different energy sources to deliver heat to the…