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Radioisotope Dilution Technique for Determination of Vitamin B12 in Foods

Journal of the Association of Official Analytical Chemists, 1982
Abstract A radioisotope dilution (RID) method for the determination of vitamin B12 is presented. The method combines a standard extraction procedure (AOAC 43.108,12th ed.) with a commercially available RID assay kit. The method was evaluated on a wide range of fortified and unfortified food products.
P J, Casey, K R, Speckman, F J, Ebert, W E, Hobbs +3 more
exaly +3 more sources

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

Geophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside +3 more
wiley

+2 more sources

Highly sensitive assay of HMG-CoA reductase activity by LC-ESI-MS/MS

Journal of Lipid Research, 2007
We have developed a new sensitive and specific nonradioisotope assay method to measure the activity of HMG-CoA reductase, the rate-controlling enzyme in the cholesterol biosynthetic pathway.
Honda Akira +5 more
doaj +1 more source

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

Advanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase +6 more
wiley +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu +10 more
wiley +1 more source

Palladacarboxamide Capping Reagents for Carbon Isotope Labeling and Pharmaceutical Diversification

Angewandte Chemie, Volume 138, Issue 28, 6 July 2026.
Herein, we present a method for carbon isotope labeling of arylamides via the coupling of air‐stable palladium carboxamide complexes and boronic ester/acids. A wide variety of functionalized boronic esters and acids have been coupled with simple palladium carboxamides complexes.
Daniel V. Hoffmann +8 more
wiley +2 more sources

A Multicenter Non‐Inferiority Randomized Controlled Trial of Sentinel Lymph Node Biopsy in Early Breast Cancer: Conventional Dual Tracer Versus Superparamagnetic Iron Oxide

World Journal of Surgery, EarlyView.
The gold standard for detecting sentinel lymph node (SLN) in early breast cancer is combined use of radioisotope and blue dye. A newer agent, superparamagnetic iron oxide (SPIO), was developed to address the challenges faced with the traditional method.
Chiu Hoi Woon Tiffany +5 more
wiley +1 more source

Combined use of fluorescence with a magnetic tracer and dilution effect upon sentinel node localization in a murine model

International Journal of Nanomedicine, 2018
Akihiro Kuwahata,1,* Muneer Ahmed,2,* Kohei Saeki,3 Shinichi Chikaki,1 Miki Kaneko,1 Wenqi Qiu,1 Zonghao Xin,1 Shinji Yamaguchi,3 Akiko Kaneko,1 Michael Douek,2 Moriaki Kusakabe,3,4 Masaki Sekino1 1Department of Electrical Engineering and Information ...
Kuwahata A +11 more
doaj

Longitudinal Tracking of Astrocyte Reactivity During the Development of Chronic Orofacial Neuropathic Pain Using [18F]‐SMBT‐1 Positron‐Emission Tomography

Glia, Volume 74, Issue 8, August 2026.
Using [18F]‐SMBT‐1 PET, we longitudinally tracked MAO‐B–expressing reactive astrocytes during orofacial neuropathic pain development in rats, revealing region‐ and time‐specific astrocyte activation during pain chronification. ABSTRACT Chronic neuropathic pain represents a significant global health burden and is hypothesized to be maintained by an ...
Lewis S. Crawford +14 more
wiley +1 more source

Lymphatic Drainage of Cerebrospinal Fluid Using Lymph Node Seeker 64Cu‐Labeled Gram‐Negative Bacterial Extracellular Vesicles With Positron Emission Tomography (PET)

Journal of Extracellular Vesicles, Volume 15, Issue 8, August 2026.
ABSTRACT Cerebrospinal fluid (CSF) is drained into the systemic lymphatics via paravertebral lymph nodes. Superficial and deep cervical lymph nodes collect CSF in mice, but the exact and quantified routes are unknown. Recently, we simultaneously visualized cervical, sacral and iliac lymph nodes via serial imaging on the intrathecal [64Cu]Cu‐albumin ...
Kyuwan Kim +11 more
wiley +1 more source

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