Results 141 to 150 of about 1,555,141 (308)

ELECTRONIC PROPERTIES OF PURE AND INTERCALATED 2H-NbS₂ BY MEANS OF PHOTOACOUSTIC SPECTROSCOPY [PDF]

, 1983
P. S. Bechthold, R. Manzke, R. Schöllhorn   +2 more
openalex   +1 more source

Ultrasmall Superparamagnetic Iron Oxide Nanoparticles as Positive Contrast Agents in Low‐Field Magnetic Resonance Imaging

iRADIOLOGY, EarlyView.
Ultrasmall superparamagnetic iron oxide nanoparticles emerge as promising positive contrast agents for low‐field MRI. Unlike larger SPIONs, these particles exhibit enhanced T1 relaxivity through rapid magnetic fluctuations and surface spin canting. Their biocompatibility, renal clearance pathway, and bright contrast generation offer safer alternatives ...
Ogechukwu Ngwu‐Hyacinth, Aaron Alford, Caleb S. Rowe, Ryan Willoughby, S. Abdollah Mirbozorgi, Steven A. Rothenberg, Jesse Jones, Abin Sajan, Venkatesh P. Krishnasamy, Mark Bolding   +9 more
wiley   +1 more source

Photoinduced Effects on Gap State Profiles and Recombination Processes in Amorphous Selenium Studied by Photoacoustic Spectroscopy and Xerographic Discharge Measurements [PDF]

, 1989
Yoshihiko Kanemitsu, Kazuhiro Koseki, Shunji Imamura   +2 more
openalex   +1 more source

Analysis of the experimental absorption spectrum of the rabbit lung and identification of its components

Journal of Biophotonics, EarlyView.
The broadband absorption coefficient spectrum of the rabbit lung was reconstructed from the absorption spectra of tissue components. The similar accumulation of melanin and lipofuscin was retrieved from the broadband baseline in the absorption coefficient spectrum, and the calculation of the absorption fold ratios for proteins, DNA and hemoglobin ...
Maria R. Pinheiro, Valery V. Tuchin, Luís M. Oliveira   +2 more
wiley   +1 more source

Stable near‐infrared‐IIb dyes based on bis‐Pd(II) complexes of bis(TIPS‐ethynyl)‐substituted doubly N‐confused hexaphyrins

Journal of the Chinese Chemical Society, EarlyView.
A novel anisotropically π‐extended hexaphyrin dye, t‐Pd2‐3, exhibits abnormally low‐energy absorption and emission beyond 1500 nm within the NIR‐IIb biological window. The specific optical feature of t‐Pd2‐3 contributed to its being utilized as a NIR‐IIb‐excitation‐induced photoacoustic contrast agent for deeper tissue imaging applications. Abstract We
Yuriha Nishiguchi, Aninda Ghosh, Koki Ogasahara, Yoshihisa Yamaoka, Yuhsuke Yasutake, Susumu Fukatsu, Hiroyuki Furuta, Masatoshi Ishida   +7 more
wiley   +1 more source

“MR Fingerprinting for Imaging Brain Hemodynamics and Oxygenation”

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Over the past decade, several studies have explored the potential of magnetic resonance fingerprinting (MRF) for the quantification of brain hemodynamics, oxygenation, and perfusion. Recent advances in simulation models and reconstruction frameworks have also significantly enhanced the accuracy of vascular parameter estimation.
T. Coudert, A. Delphin, A. Barrier, E. L. Barbier, B. Lemasson, J. M. Warnking, T. Christen   +6 more
wiley   +1 more source

Laser Photoacoustic Spectroscopy of Azulene [PDF]

, 1986
D. KUMAR, R. V. NAUMAN, T. L. MATHERS, S. P. MCGLYNN, R. MOHANTY   +4 more
openalex   +1 more source

Thermo‐Optically Tunable Mid‐Infrared Bandpass Filters Comprising Ultra‐Thin Silicon‐on‐Sapphire Metasurfaces

Laser &Photonics Reviews, EarlyView.
Ultra‐thin, tunable bandpass filters are a pathway to realizing mid‐infrared spectrometers that are compact, low power, and performant. The authors elicit 141 nanometres of passband tunability in the mid‐infrared in silicon on sapphire zero‐contrast gratings by exploiting silicon's high thermo‐optic coefficient.
Benjamin J. Russell, Sivacarendran Balendhran, Jiajun Meng, Kenneth B. Crozier   +3 more
wiley   +1 more source

Some applications of photoacoustic spectroscopy to the analysis of pharmaceutical powders.

, 1985
Yoshinobu Nakai, Keiji Yamamoto, Katsuhide Terada, Manabu Sakai   +3 more
openalex   +2 more sources

Real-time, in situ measurements of atmospheric optical absorption in the visible via photoacoustic spectroscopy—IV. Visibility degradation and aerosol optical properties in Los Angeles [PDF]

, 1990
Karen M. Adams, L. I. Davis, Steven M. Japar, D. Finley   +3 more
openalex   +1 more source