Internalization of ferromagnetic nanowires by different living cells.

J Nanobiotechnology

Centre for Research on Adaptive Nanostructures and Nanodevices and School of Physics, Trinity College Dublin, Dublin 2, Ireland.

Published: September 2006

The ability of living cells, either adherent or suspended, to internalize nickel nanowires is demonstrated for MC3T3-E1, UMR106-tumour and Marrow-Stromal cells. Nanowires were produced by electrodeposition, 20 mum long and 200 nm in diameter. Cell separation and manipulation was achieved for the three cell types. Applied magnetic field successfully oriented the internalized nanowires but no clear anisotropy is induced on the adherent cells. Nanowires tend to bind to cytoplasm metalloproteins and trigger lysosome reorganization around the nucleus. This work demonstrates the applications of nanowires in adherent and suspended cells for cell separation and manipulation, and further explore into their role in nanobiotechnology.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1592113PMC
http://dx.doi.org/10.1186/1477-3155-4-9DOI Listing

Publication Analysis

Top Keywords

living cells
8
adherent suspended
8
cells nanowires
8
cell separation
8
separation manipulation
8
nanowires
6
cells
5
internalization ferromagnetic
4
ferromagnetic nanowires
4
nanowires living
4

Similar Publications

Rapid reduction of body size in populations responding to global warming suggests the involvement of temperature-dependent physiological adjustments during growth, such as mitochondrial alterations, in the efficiency of producing metabolic energy, a process that is poorly explored, especially in endotherms. Here, we examined the mitochondrial metabolism and proteomic profile of red blood cells in relation to body size and cellular energetics in nestling shearwaters (Calonectris diomedea) developing at different natural temperatures. We found that nestlings of warmer nests had lighter bodies and smaller beaks at fledging.

View Article and Find Full Text PDF

3D bioprinted dynamic bioactive living construct enhances mechanotransduction-assisted rapid neural network self-organization for spinal cord injury repair.

Bioact Mater

April 2025

State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.

Biomimetic neural substitutes, constructed through the bottom-up assembly of cell-matrix modulus via 3D bioprinting, hold great promise for neural regeneration. However, achieving precise control over the fate of neural stem cells (NSCs) to ensure biological functionality remains challenging. Cell behaviors are closely linked to cellular dynamics and cell-matrix mechanotransduction within a 3D microenvironment.

View Article and Find Full Text PDF

Hydrogen peroxide (HO) plays a critical role in the regulation and progress of autophagy, an essential recycling process that influences cellular homeostasis and stress response. Autophagy is characterized by the formation of intracellular vesicles analogous to recycle "bags" called autophagosomes, which fuse with lysosomes to form autolysosomes, eventually ending up as lysosomes. We have developed two novel autophagic vesicle-targeted peptide-based sensors, for HO and for pH, to simultaneously track HO and pH dynamics within autophagic vesicles as autophagy advances.

View Article and Find Full Text PDF

Objective: This study aimed to provide evidence to improve cervical screening for women living with HIV (WLHIV). We assessed the accuracy of screening tests that can be used in low-resource settings and give results at the same visit.

Methods And Analysis: We conducted a paired, prospective study among consecutive eligible WLHIV, aged 18-65 years, receiving cervical cancer screening at one hospital in Lusaka, Zambia.

View Article and Find Full Text PDF

Consistent features observed in structural probing data of eukaryotic RNAs.

NAR Genom Bioinform

March 2025

Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8561, Japan.

Understanding RNA structure is crucial for elucidating its regulatory mechanisms. With the recent commercialization of messenger RNA vaccines, the profound impact of RNA structure on stability and translation efficiency has become increasingly evident, underscoring the importance of understanding RNA structure. Chemical probing of RNA has emerged as a powerful technique for investigating RNA structure in living cells.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!