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Measurement of serum growth hormone by mass spectrometry is demonstrated to be unaffected by interferences with growth hormone binding protein as frequently encountered with antibody-based routine test methods and provides an alternative…

定量方法 · 定量生物学 2014-05-16 Cristian G. Arsene , Jürgen Kratzsch , André Henrion

Growth hormone (GH) constitutes a set of closely related protein isoforms. In clinical practice, the disagreement of test results between commercially available ligand-binding assays is still an ongoing issue, and incomplete knowledge about…

定量方法 · 定量生物学 2014-11-12 Cristian G. Arsene , Jürgen Kratzsch , André Henrion

Biological processes rely on finely tuned homo- and heteromeric interactions between (biomacro)molecules. The strength of an interaction, typically given by the dissociation constant (KD), plays a crucial role in basic research and must be…

定量方法 · 定量生物学 2025-10-14 Jonathan Schulte , Eric Schwegler , Ute A. Hellmich , Nina Morgner

We present a first-principles-based multiscale simulation framework for quantitative predictions of the high-energy part of the Ultraviolet Photoelectron Spectroscopy (UPS) spectra of amorphous molecular solids. The approach combines a…

Sequence coverage in MS analysis of protein digestion-derived peptides is a key issue for detailed characterization of proteins or identification at low quantities. In gel-based proteomics studies, the sequence coverage greatly depends on…

This work explores the use of Surface-Enhanced Raman Spectroscopy (SERS) combined with artificial neural network (ANN) models to detect and quantify growth hormone (GH) and testosterone (TE) in the blood of Sprague Dawley (SD) rats. SERS…

Particle agglutination assays are widely adapted immunological tests that are based on antigen-antibody interactions. Antibody-coated microscopic particles are mixed with a test sample that potentially contains the target antigen, as a…

医学物理 · 物理学 2021-07-20 Yi Luo , Hyou-Arm Joung , Sarah Esparza , Jingyou Rao , Omai Garner , Aydogan Ozcan

Photoacoustic (PA) imaging systems are spreading in the biomedical community, and the de-velopment of new PA contrast agents is an active area of research. However, PA contrast agents are usually characterized with spectrophotometry or…

Anemia is a global health concern, prompting the need for rapid and accurate diagnostic tools, especially for vulnerable populations. Estimating the blood lysis level (LL) and oxygen saturation (SO2) are essential not only for anemia but…

With the increase of computing power, machine learning models in medical imaging have been introduced to help in rending medical diagnosis and inspection, like hemophilia, a rare disorder in which blood cannot clot normally. Often, one of…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Qianyu Fan

We present a microfluidic method leading to accurate measurements of the mutual diffusion coefficient of a liquid binary mixture over the whole solute concentration range in a single experiment. This method fully exploits solvent…

软凝聚态物质 · 物理学 2017-09-21 Anne Bouchaudy , Charles Loussert , Jean-Baptiste Salmon

To accurately verify the dose of intensity-modulated radiation therapy (IMRT), we have used a global optimization method to investigate a new dose-verification algorithm. In practical application of this quality assurance (QA) procedure,…

Infrared vibrational spectroscopy in the gas phase has emerged as a powerful tool to determine complex molecular structures with Angstrom accuracy. Among the different approaches IRMPD (InfraRed Multiple Photon Dissociation), which requires…

化学物理 · 物理学 2024-06-24 Oznur Yeni , Baptiste Schindler , Baptiste Moge , Isabelle Compagnon

Antibody drugs are usually formulated as highly-concentrated solutions, which would easily generate oligomer and aggregation, resulting in loss of efficacy. Although low pH increases the colloidal dispersion of antibodies, acid denaturation…

生物物理 · 物理学 2022-07-15 Yusui Sato , Satoru Nagatoishi , Shintaro Noguchi , Kouhei Tsumoto

A new, versatile, multiphasic buffer system for high-resolution sodium dodecyl sulfate-polyacrylamide gel electrophoresis of proteins in the relative molecular weight range of 300 000-3000 Da is described. The system, based on the theory of…

An improved method of remote optical absorption spectroscopy and hyperspectral optical absorption imaging is described which takes advantage of the photoacoustic remote sensing detection architecture. A wide range of photoacoustic…

生物物理 · 物理学 2021-08-04 Kevan Bell , Lyazzat Mukhangaliyeva , Layla Khalili , Parsin Haji Reza

Holographic molecular binding assays detect macromolecules binding to colloidal probe beads by monitoring nanometer-scale changes in the beads' diameters with holographic microscopy. Measured changes are interpreted with Maxwell Garnett…

软凝聚态物质 · 物理学 2026-02-10 Kaitlynn Snyder , Andrew D. Hollingsworth , Fook Chiong Cheong , Rushna Quddus , David G. Grier

Superhydrogenated polycyclic aromatic hydrocarbons (PAHs) may be present in H-rich and ultraviolet-poor benign regions. The addition of excess H atoms to PAHs converts the aromatic bonds into aliphatic bonds, the strongest of which falls…

星系天体物理 · 物理学 2020-03-04 X. J. Yang , Aigen Li , R. Glaser

Pulsed-field-gradient nuclear magnetic resonance (PFG-NMR) is used to obtain the true hydrodynamic size of complexes of peptides with sodium dodecyl sulfate SDS micelles. The peptide used in this study is a 19-residue antimicrobial peptide,…

软凝聚态物质 · 物理学 2013-01-16 Suliman Barhoum , Valerie Booth , Anand Yethiraj

In the present study we demonstrate for the first time how Astigmatism Particle Tracking Velocimetry (APTV) can be utilized to measure suspensions dynamics. Measurements were successfully performed in monodisperse, refractive index matched…

流体动力学 · 物理学 2021-02-03 Philipp Brockmann , Jeanette Hussong
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