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Single atoms show their true color

Physicists at Michigan State University have developed a new approach that combines high-resolution microscopy with ultrafast lasers to detect misfit atoms in semiconductors. The technique enables researchers to spot defects with unparalleled precision, which is critical for the performance of modern electronics.

SourceMichigan State University·JournalNature Photonics·DateJul 4, 2024

Exploring the effect of H2O2 eustress on individual cancer cells using hopping probe scanning ion conductance microscopy (HPICM)

Researchers used HPICM to study the effect of H2O2 eustress on individual colorectal cancer Caco-2 cells, finding that low levels of H2O2 can increase cell stiffness and negatively impact antioxidant defense. The findings suggest a potential new target for colon cancer treatment, inhibiting GPX under H2O2 eustress.

SourceNano Life Science Institute (NanoLSI), Kanazawa University·JournalScience Bulletin·TypeImaging analysis·DateMay 13, 2024

What’s your gut telling you?

Researchers have created a tiny pill-like electromagnetic device that can provide medical professionals with diagnostic information about the inner workings of the gastrointestinal tract. The device, when swallowed, delivers data to a smartphone as it passes through the body using electromagnetic technology similar to MRI machines.

SourceNYU Tandon School of Engineering·JournalNature Electronics·DateFeb 13, 2023

Under the scanner: GIST scientists unravel the inner workings of DNA repair enzymes

GIST scientists utilized latest advances in single molecule detection to observe the enzymatic activity of gene repair. The study revealed that ExoIII has an affinity for damaged DNA sites, creating a gap that Pol I fills. Understanding this mechanism may lead to technologies for targeted gene repair and drug development.

SourceGIST (Gwangju Institute of Science and Technology)·JournalScience Advances·TypeObservational study·DateSep 13, 2021

Harnessing socially-distant molecular interactions for future computing

Researchers have discovered that individual molecules on a metal surface can interact with each other over large distances, potentially revolutionizing the field of computing. This phenomenon has significant implications for the development of new electronic and optoelectronic technologies based on organic molecules and 2D materials.

Smart data enhances atomic force microscopy

A team at University of Washington demonstrates an innovative approach to bridge AFM and big data, offering better spatial resolution and accuracy. By using sequential excitation strategy, they deduce physical insight from PCA data and speed up analysis by orders of magnitude.

SourceScience China Press·JournalNational Science Review·DateNov 16, 2018

Manipulating complex molecules by hand

Jülich researchers create a word using 47 molecules by manipulating them with a novel control system. The technique allows for the first time to remove large organic molecules from associated structures and place them elsewhere in a controlled manner.

SourceForschungszentrum Juelich·JournalBeilstein Journal of Nanotechnology·DateNov 6, 2014

Making a point

Researchers at Northwestern University developed a new method for rapidly prototyping nanoscale devices and structures, combining the benefits of scanning-probe lithography and polymer pen lithography. The technique, called hard-tip, soft-spring lithography, produces patterns with sub-50-nanometer resolution and scalability.

SourceNorthwestern University·JournalNature·DateJan 26, 2011

AFM tips from the microwave

Scientists from Friedrich-Schiller-University Jena developed a new process to grow carbon nanotubes on scanning probe tips, utilizing microwave radiation for rapid growth. The method improves the fabrication of sharp atomic force microscopy tips, reducing costs and enabling routine measurements.

SourceFriedrich-Schiller-Universitaet Jena·JournalNano Letters·DateOct 21, 2010

Getting The Low-Down On Surfaces

Scientists can now examine a material's surface using specially constructed probes, identifying contaminants and component parts. The probes also measure thermal properties, conductivity, and topography to provide insights into material behavior.

SourceInstitute of Materials·JournalMaterials World·DateOct 1, 1998