Search results for AFM

Analytical Chemistry Dec 20, 2021

An aptasensor has been designed to detect the SARS-CoV-2 virus in saliva

Scientists at the Universidad Carlos III de Madrid (UC3M) have developed the first photo-electrochemical aptasensor that detects the SARS-CoV-2 virus in a saliva sample. This sensor, which uses aptamers (a type of artificial ...

Cell & Microbiology Dec 7, 2021

'Unfreezing' molecular proteins to discover their functions in action

A team of researchers from Weill Cornell Medical School's Department of Physiology and Biophysics has developed a new computational technique to conduct molecular dynamics simulations of proteins at the specific concentration ...

Nanophysics Oct 29, 2021

Imaging the chemical fingerprints of molecules

Flip through any chemistry textbook and you'll see drawings of the chemical structure of molecules—where individual atoms are arranged in space and how they're chemically bonded to each other. For decades, chemists could ...

Nanomaterials Oct 25, 2021

Researchers discover ferromagnetism induced by defects in correlated 2D materials

A weak ferromagnetic (FM) ground state at low temperature in few-layered van der Waals (vdW) magnetic Ni1-xCoxPS3 nanosheets containing sulfur vacancies (Sv) was discovered by a research team led by Prof. He Jun from National ...

Materials Science Oct 19, 2021

Nonchlorinated solvent-processed high-performance ambipolar transistors

This research is led by Prof. Yunqi Liu (Institute of Chemistry Chinese Academy of Sciences) and Prof. Yunlong Guo (Institute of Chemistry Chinese Academy of Sciences). Ambipolar polymer semiconductors have wide applications ...

Nanomaterials Oct 15, 2021

Researchers propose new strategy for interfacial modification of organic solar cells

Surface energy (γs) plays a key role in the formation of bulk-heterojunction (BHJ) films in organic solar cells fabricated by solution process. The miscibility of BHJ films can be predicted by the difference of surface energy ...

Materials Science Oct 13, 2021

Surface chemistry reveals corrosive secrets

One can easily see with the naked eye that leaving an old nail out in the rain causes rust. What does require the keen eyes and sensitive nose of microscopy and spectroscopy is observing how iron corrodes and forms new minerals, ...

Materials Science Oct 4, 2021

Team measures the breakup of a single chemical bond

The team used a high-resolution atomic force microscope (AFM) operating in a controlled environment at Princeton's Imaging and Analysis Center. The AFM probe, whose tip ends in a single copper atom, was moved gradually closer ...

Nanomaterials Sep 23, 2021

Team proposes microprinting a fiber-tip polymer clamped-beam probe for high-sensitivity nanoforce measurements

The control and measurement of asserted forces on small objects are frequently seen in micromanipulation, material science, and biological and medical applications. Researchers in China have proposed for the first time the ...

Nanophysics Sep 16, 2021

Implanted atoms create unique electrical IDs that distinguish bona fide devices from forgeries

If someone sells you a luxury handbag from Paris, France, but it turns out be a forgery from Paris, Texas, the counterfeit item might cost you a thousand bucks and the crook could wind up in jail. But if a counterfeit electronic ...

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