Conventional to slow muon microscopy – a review

Pant, Amba Datt

doi:10.3126/bibechana.v17i0.26867

Cited by 3 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, HOMO-LUMO gap indicates the easy electronic transition occurred when Mu stops around O2. The behavior of muonium will be studied via SR studies and compared with current result using ultra slow muon microscopy under development in Japan Proton Accelerator Research Complex, Japan [15][16][17][18].…”

Section: Discussionmentioning

confidence: 99%

Muonium behavior in N-acetylglycine-N-methylamide

Pant

2021

BIBECHANA

Self Cite

View full text Add to dashboard Cite

In muon spin rotation and relaxation (mSR) method, theoretical work using first-principles calculations helps to understand the stopping sites and charge states of muon in the sample materials. To support the mSR measurement on protein and DNA, a systematic first-principles study starting from the constituents of the protein has been performed. In this work, the behavior of muonium (Mu = m+e-, bound state of a muon and an electron which is like a light isotope of H atom with similar chemical properties) in a N-acetylglycine-N-methylamide (AGMA), a part of peptide bond, is presented. It is found that the stopping site of Mu is around O of unsaturated bonds between C and O in the AGMA. Further calculations towards whole protein and DNA will be performed to support mSR studies. BIBECHANA 18 (2) (2021) 138-142

show abstract

Section: Discussionmentioning

confidence: 99%

Muonium behavior in N-acetylglycine-N-methylamide

Pant

2021

BIBECHANA

Self Cite

View full text Add to dashboard Cite

show abstract

“…Further study of addition of more water molecules as in experimental sample will help to understand the measured result. Since the limitation of conventional muon to apply in single crystal of protein, we have been developing the ultra-slow muon microscopy at materials and life science facility, Japan Proton Accelerator Research Complex (J-PARC) [16][17][18][19].…”

Section: Stopping Sites Potential Energy (Ev)mentioning

confidence: 99%

Muonium and Water in Histidine Amino Acid

Pant¹

2021

J. Nep. Phys. Soc.

View full text Add to dashboard Cite

In order to apply muon spin rotation and relaxation method for study of life sciences like electron transfer process, detection of molecular concentration, photosynthesis process, etc., theoretical study to understand the stopping sites of muon and its charge species in the macromolecules is necessary. In the systematic theoretical study to know the behaviour of muon and muonium in water hydrated biological macromolecules like protein and DNA through the first-principles approach, the behaviour of a water molecule in the presence of muonium in histidine amino acid with extended main chain is presented here. The sites of a water molecule and a muonium in histidine amino acid are estimated. Two possible sites with potential energy 0.3 eV (approximately) for water molecule in the optimized structure of muonium in extended main chain histidine were estimated. Water in the sites is expected to contribute to enhance the intra- and inter-chain electron transfer in the system as reported experimentally.

show abstract

“…During these more than four decades, relatively slow progress of muon in life sciences with respect that in material science can be realized from the available literatures. For application of muon (using conventional and slow muon [15,16,17]) to life sciences, the interaction of muon and its charge states with water, and temperature and pressure dependent behavior is essentially important to separate the background signal.…”

Section: Introductionmentioning

confidence: 99%

Overview of µSR Study in Water and Ice

Pant

2021

J. Nep. Phys. Soc.

Self Cite

View full text Add to dashboard Cite

Muon spin rotation, relaxation and resonance (µSR) method has been used to understand the properties of materials and life. In order to apply the µSR method to life sciences, it is first of all necessary to know the behavior of the muon and its species in different phases of water. In water, muon in diagmetic form is found around 60%, muonium around 20% and remaining missing fraction however in ice, muon and muonium are found almost 50-50% of the incident muon. In ice, the spin dipole interaction of muon with protons will help to understand µSR in water and finally in biosamples.

show abstract

Conventional to slow muon microscopy – a review

Cited by 3 publications

References 30 publications

Muonium behavior in N-acetylglycine-N-methylamide

Muonium behavior in N-acetylglycine-N-methylamide

Muonium and Water in Histidine Amino Acid

Overview of µSR Study in Water and Ice

Contact Info

Product

Resources

About