Category: Nanotech
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International team examines how selenium could help in fight against ovarian cancer
SeNP accumulation in SKOV-3 and OVCAR-3 spheroids. SeNPs penetrate and accumulate in SKOV-3 and OVCAR-3 spheroids. SKOV-3 (a) and OVCAR-3 (b) cell spheroids were treated with BSA-SeNPs at IC20 concentrations for 24 h and imaged by TEM. Scale bars are displayed on the images (between 0.5 and 5 μm). SeNP accumulation was observed in vesicles and…
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Highest resolution in three dimensions — ScienceDaily
LMU researchers have developed a super-resolution microscopy method for the rapid differentiation of molecular structures in 3D. Super-resolution microscopy methods are essential for uncovering the structures of cells and the dynamics of molecules. Since researchers overcame the resolution limit of around 250 nanometers (and winning the 2014 Nobel Prize in Chemistry for their efforts), which…
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Fluid mixing enables scalable manufacturing of soft polymer structures — ScienceDaily
Researchers have developed and demonstrated an efficient and scalable technique that allows them to manufacture soft polymer materials in a dozen different structures, or “morphologies,” from ribbons and nanoscale sheets to rods and branched particles. The technique allows users to finely tune the morphology of the materials at the micro- and nano-scale. “This advance is…
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Lantern-shaped flexible RNA origami for Smad4 mRNA delivery and growth suppression of colorectal cancer
Principle of the lantern-shaped flexible origami for Smad4 mRNA delivery As shown in Fig. 1a, Smad4 mRNA was synthesized through the transcription method (IVT) method and then capped with an m7G cap at its 5’-terminal and tailed with a poly (A) tail at its 3’-terminal, which would contribute to maintaining the stability of mRNA and promoting…
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The importance of the image forces and dielectric environment in modeling contacts to two-dimensional materials
Radisavljevic, B., Radenovic, A., Brivio, J., Giacometti, V. & Kis, A. Single-layer MoS2 transistors. Nat. Nanotechnol. 6, 147 (2011). Article CAS Google Scholar Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N. & Strano, M. S. Electronics and optoelectronics of two-dimensional transition metal dichalcogenides. Nat. Nanotechnol. 7, 699 (2012). Article CAS Google Scholar Miró,…
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Author Correction: Direct patterning of colloidal quantum dots with adaptable dual-ligand surface
These authors contributed equally: Donghyo Hahm, Jaemin Lim, Hyeokjun Kim. SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, Republic of Korea Donghyo Hahm, Jaemin Lim, Seunghyun Rhee, Jun Hyuk Chang, Beomgyu Choi, Euyheon Hwang & Wan Ki Bae Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul, Republic of Korea Hyeokjun Kim, Jeehye Yang, Chang Hyeok Lim, Hyunwoo Jo & Moon…
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Nanoarchitecture factors of solid electrolyte interphase formation via 3D nano-rheology microscopy and surface force-distance spectroscopy
Gauthier, M. et al. Electrode–electrolyte interface in Li-ion batteries: current understanding and new insights. J. Phys. Chem. Lett. 6, 4653–4672 (2015). Article CAS PubMed Google Scholar Liu, T. et al. In situ quantification of interphasial chemistry in Li-ion battery. Nat. Nanotechnol. 14, 50–56 (2019). Article ADS CAS PubMed Google Scholar Wang, L. et al. Identifying…
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Creating complex protocells and prototissues using simple DNA building blocks
Ethics The study was approved by UCL research ethics committee (REC ref 19181/001). All participants verbally consented and completed a consent form. We do not have consent to publish identifiable data. We have consent to publish healthy volunteer demographics as aggregate data or as averages. No compensation was offered to blood donors. Reagents All DNA…
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Investigation of temperature variations on a Class-E inverter and proposing a compensation circuit to prevent harmful effects on biomedical implants
Design block diagram and design specification The proposed block diagram of a WPT used in biomedical implants is shown in Fig. 2. Due to the high efficiency of switching inverters, they are used in the wireless power supply system in the power transmitter part. In wireless implants, the transmitter induces the required power into the implant…
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A nanogenerator based on metal nanoparticles and magnetic ionic gradients
To fabricate a metal nanoparticle nanogenerator, magnetic organic ligands are first synthesized24. Positively charged N,N,N-trimethyl(11-mercaptoundecyl)ammonium chloride (HS-C11NMe3+Cl−, TMA) molecules are mixed with DyCl3 to prepare magnetic TMA ligands with negatively charged paramagnetic counterions DyCl4–. Compared with TMA molecules, the UV‒vis spectrum of mag-TMA shows several weak peaks at approximately 755 nm, 804 nm, and 907 nm, which could…