Search results for X-ray diffraction

Analytical Chemistry Aug 2, 2023

Steric zipper interactions in artificial crystalline peptide β-sheets

Steric zippers are a specific type of hydrophobic packing structure that form between two adjacent layers of peptide β-sheets in amyloid and similar fibrils. These structures play a crucial role in the stability and propagation ...

Biotechnology Jul 26, 2023

Researchers use X-rays to find the best antibodies

Antibody therapies have a variety of uses, but we need to know which therapies work and which ones don't. Recent research has discovered a means to determine how effective certain antibodies can be in medical scenarios.

Analytical Chemistry Jul 20, 2023

Observing the long-postulated intermediate of catalytic amination reactions

Researchers at the Institute for Basic Science (IBS) in South Korea have made a groundbreaking discovery by identifying the structure and reactivity of rhodium-acylnitrenoid intermediates in catalytic hydrocarbon amination ...

Bio & Medicine Jul 17, 2023

Breaking barriers in drug delivery with better lipid nanoparticles

Many diseases can be successfully treated in the simple environment of a cell culture dish, but to successfully treat real people, the drug agent has to take a journey through the infinitely more complex environment within ...

Nanophysics Jul 7, 2023

Machine learning enhances X-ray imaging of nanotextures

Using a combination of high-powered X-rays, phase-retrieval algorithms and machine learning, Cornell researchers revealed the intricate nanotextures in thin-film materials, offering scientists a new, streamlined approach ...

Evolution Jun 27, 2023

New study sheds light on the evolution of animals

A study led by the University of Oxford has brought us one step closer to solving a mystery that has puzzled naturalists since Charles Darwin: when did animals first appear in the history of Earth? The study, "Fossilization ...

Analytical Chemistry Jun 19, 2023

Resolving hydrogen atoms in small organic molecules depending on chemical bond type

Extremely intense X-ray pulses can determine the positions of some hydrogen atoms in organic molecules that form small crystals, an all-RIKEN team has shown. Many areas, including drug discovery and materials research, stand ...

Optics & Photonics Jun 7, 2023

New spectroscopy method reveals accelerated relaxation dynamics in compressed cerium-based metallic glass

A major stumbling block in our understanding of glass and glass phenomena is the elusive relationship between relaxation dynamics and glass structure. A team led by Dr. Qiaoshi Zeng from HPSTAR recently developed a new in ...

Condensed Matter May 30, 2023

Symmetry breaking by ultrashort light pulses opens new quantum pathways for coherent phonons

Atoms in a crystal form a regular lattice, in which they can move over small distances from their equilibrium positions. Such phonon excitations are represented by quantum states. A superposition of phonon states defines ...

Optics & Photonics May 30, 2023

New high resolution X-ray imaging technique can image biological specimens without causing damage

A pollen grain showing the nanofoam within or a diatom with the individual geometric structures inside clearly visible: Using high-energy X-rays from the PETRA III synchrotron light source at DESY, a team led by CFEL scientists ...

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