Tag Archives: X-ray

Significant effect of polyoxometalates on the molecular structures of phosphanegold cluster cations

Gold(I) cluster complexes have attracted much attention owing to their excellent catalytic activity in a broad range of organic reactions. We recently discovered that polyoxometalate (POM ) – mediated clusterization of monomeric phosphanegold(I) complexes results in the

Halogen bonding assembly of an iodide-binding triple helix

Wind turbines, spiral staircases, and springs—these are a few examples of helices in everyday life. The helix is also a reoccurring concept in mythology, spanning many cultures. In biology, helices are both essential and pervasive. Collagen, the

Can Radon radiation become a source of treatment for Rheumatoid Arthritis?

Rheumatoid arthritis (RA) is the most common type of autoimmune disease. It is triggered by a faulty immune system of the body. However, the real cause of the disease is not completely known. The disease affects the

Computational identification of plastic debris in the marine environment

The presence of plastics on the marine environment has several dangerous effects on the aquatic living organisms. Plastics have high chemical stability and are invariant with respect to the degradation agents.  Their accumulation on sea surface produces

Luminescent molecular wires that consist of up to eight copper atoms

Linear multi-atom complexes of Group 11 metals (Cu, Ag, Au) exhibit fascinating luminescence properties that make them highly interesting 1) for the systematic design of molecular wires in nanoelectronics and 2) their application as light-emitting building blocks

Automated chest X-ray screening: can edge map measure the evidence of pulmonary abnormalities?

Among many pulmonary diseases, according to the 2014 WHO report, Tuberculosis (TB) is considered as one of the deadliest communicable diseases. While TB cure rates over 90% have been documented in resource-rich countries, its detection and treatment

Tumor risk from low-dose radiation exposures with the example of dental diagnostic X-ray

It was reported that exposure to dental diagnostic X-rays in oral, dental and maxillofacial care increases the risk of benign tumors (meningioma), but not of malignant brain tumors (glioma). Malignant gliomas grow more rapidly. Meningioma, a benign

An international team opens new avenues toward PKU therapy

When a baby is born, a simple blood test reveals whether the child has PKU, which is a recessive genetic disorder where the body fails to regulate the amount of phenylalanine (Phe) in blood.  Phe is a

Primary care doctor follow up of buckle fractures of the forearm

A buckle fracture of the distal radius (wrist bone) is a very minor fracture and the most common fracture in childhood. A “buckle” fracture occurs when there is a wrinkling of the outer edge of the bone

My research history – from molecular structure to surface science

Investigation of the molecular structure of SiCl4 using gas electron diffraction (GED) was the topic of my research I picked up when I started my graduate study at Department of Chemistry, the University of Tokyo.  However, initial

Wait a minute, how come heavier reacts faster?! Quantum effects in biochemistry and medicine

Physics is often thought to be quite irrelevant to Biochemistry and Medicine.  But, the very first Physics Nobel Prize in 1901, for the discovery of X-rays, is highly related to Medicine nowadays.  This clearly shows that a

Imaging tumor development using next generation raster scan optoacoustic mesoscopy

Cancer is one of the major diseases in the 21st century. Hundreds of billions of dollars have been spent on cancer research in the last half century, but still, our understanding of the disease mechanisms is limited.

Providing isotopes that can pinpoint disease in the body

President Eisenhower’s “atoms for Peace” initiative started the movement to explore peaceful uses of radioactive atoms, and today one use of radioactivity is to diagnose and treat diseases. Radioactive atoms are unstable atoms that decay by characteristic

Combining a range of different imaging techniques to better understand the roles metals play in biology

Microscopes in various forms have helped identify disease-causing bacteria, miniaturize microprocessors and engineer superior metal alloys. However, in biology some things remain very difficult to see even at the highest levels of magnification. Metal ions (e.g. calcium,

Signaling in the brain studied – a role for receptor clustering?

Olfactomedin-1 is a signaling protein in the brain that plays various roles during early brain development. Brain cells (neurons) secrete the protein to the extracellular matrix, where it is known to be involved in several signaling pathways.

Bones of contention: Bone mineral recovery in celiac disease

Low bone density is common in newly diagnosed patients with celiac disease (CD). Untreated CD leads to bone fractures and osteoporosis in young and older patients. The gluten-free diet (GFD) is the primary treatment for CD. Bone