Aqueous, Heterogeneous para-Hydrogen-Induced 15N Polarization
نویسندگان
چکیده
منابع مشابه
Proton magnetic resonance imaging with para-hydrogen induced polarization.
A major challenge in imaging is the detection of small amounts of molecules of interest. In the case of magnetic resonance imaging (MRI) their signals are typically concealed by the large background signal of e.g. the body. This problem can be tackled by hyperpolarization which increases the NMR signals up to several orders of magnitude. However, this strategy is limited for (1)H, the most wide...
متن کاملPara-Hydrogen Induced Polarization at Time Domain NMR Spectrometer
Nuclear Magnetic Resonance (NMR) is a widely used spectroscopic method in a broad range of disciplines. Unfortunately NMR suffers from a low intrinsic sensitivity. The low sensitivity of NMR can be successfully improved by application of hyperpolarization technique called Para-Hydrogen Induced Polarization (PHIP) which was discovered in 1986 [1-3]. Till now, a substantial progress in the method...
متن کاملReversible interactions with para-hydrogen enhance NMR sensitivity by polarization transfer.
The sensitivity of both nuclear magnetic resonance spectroscopy and magnetic resonance imaging is very low because the detected signal strength depends on the small population difference between spin states even in high magnetic fields. Hyperpolarization methods can be used to increase this difference and thereby enhance signal strength. This has been achieved previously by incorporating the mo...
متن کاملScattering polarization of hydrogen lines from electric-induced atomic alignment
We consider a gas of hydrogen atoms illuminated by a broadband, unpolarized radiation with zero anisotropy. In the absence of external fields, the atomic J-levels are thus isotropically populated. While this condition persists in the presence of a magnetic field, we show instead that electric fields can induce the alignment of those levels. We also show that this electric alignment cannot occur...
متن کاملPolarization of Methylene Blue in aqueous solutions: impact over the Hydrogen Bonds
Photodynamic Therapy (PDT) is a well known treatment for neoplastic diseases that requires a combined action of a photosensitizer (PS), light-sensitive chemical compound, and a light source. When irradiated, a photosensitizer can be promoted to excited states and induce the formation of reactive oxygen species (ROS) such as singlet oxygen (O2) [1]. ROS has a cytotoxic action over neighboring bi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Physical Chemistry C
سال: 2017
ISSN: 1932-7447,1932-7455
DOI: 10.1021/acs.jpcc.7b05912