Analyzers for in-vitro diagnostic (IVD) testing facilitate the determination of medical information from biological samples. To reach a high quality, the detection reagents have to be dispensed with a high degree of precision and accuracy. A technology change from conventional pipetting systems to contact-free dispensers provides the opportunity to reduce carry-over and handle reagents in the microliter range. A great challenge for the development and validation of new systems is the huge variety of the IVD reagents. This work presents the fluidic properties of 646 different aqueous IVD reagents and how they can be represented by a set of easy-to-prepare model fluids, covering the rheological range of the reagents. In addition, based on the model fluids, a standardized approach is presented for the evaluation of dispensers for IVD applications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.drudis.2013.06.011 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Simulation of fluid flow with Cuprophan and AN69ST membranes in the dialyzer during hemodialysis.
Biomed Phys Eng Express
January 2025
Ingeniería y Tecnología, Universidad Nacional Autonoma de Mexico Facultad de Estudios Superiores Cuautitlan, Av. 1o de Mayo S/N, Santa María las Torres, Campo Uno, 54740 Cuautitlán Izcalli, Edo. de Méx., Cuautitlan Izcalli, Estado de México, 54740, MEXICO.
Hemodialysis is a crucial procedure for removing toxins and waste from the body when kidneys fail to perform this function effectively. This study addresses the need to improve the efficiency and biocompatibility of membranes used in dialyzers. We simulate fluid flow through two types of membranes, Cuprophan (cellulosic) and AN69ST (synthetic), to understand the complex mechanisms involved and quantify key variables such as pressure, concentration, and flow.
View Article and Find Full Text PDFHybrid molecular-scale and continuum modeling of two-dimensional flow between inhomogeneous solid surfaces and its application to the thrust bearing.
J Mol Model
January 2025
College of Mechanical Engineering, Changzhou University, Changzhou, Jiangsu Province, China.
Context: The flow equations are derived for describing the two-dimensional hybrid molecular-scale and continuum flows in the very small surface separation with inhomogeneous solid surfaces and they can be applied for designing the specific bearings. The aim of the present study is to solve this specific flow problem in engineering with normal computational cost. The flow factor approach model describes the flow of the molecule layer adjacent to the solid surface and the Newtonian fluid model describes the flow of the intermediate continuum fluid.
View Article and Find Full Text PDFLinking higher amyloid beta 1-38 (Aβ(1-38)) levels to reduced Alzheimer's disease progression risk.
Alzheimers Dement
January 2025
Department of Psychiatry and Neuroscience, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
Introduction: The beneficial effects of amyloid beta 1-38, or Aβ(1-38), on Alzheimer's disease (AD) progression in humans in vivo remain controversial. We investigated AD patients' cerebrospinal fluid (CSF) Aβ(1-38) and AD progression.
Methods: Cognitive function and diagnostic change were assessed annually for 3 years in 177 Aβ-positive participants with subjective cognitive decline (SCD), mild cognitive impairment (MCI), and dementia from the German Center for Neurodegenerative Diseases (DZNE) longitudinal cognitive impairment and dementia study (DELCODE) cohort using the Mini-Mental State Examination (MMSE), Preclinical Alzheimer's Cognitive Composite (PACC), Clinical Dementia Rating (CDR), and National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) criteria.
Intramural hematomas and astrocytic infiltration precede perivascular inflammation in a rat model of repetitive low-level blast injury.
J Neuropathol Exp Neurol
January 2025
Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
In modern war theaters, exposures to blast overpressures are one of the most common causes of brain injury. These pervasive events result in acute and chronic cerebrovascular degenerative processes. Using a rat model of blast-induced mild traumatic brain injury, we identified intramural periarterial hematomas as early primary acute lesions induced by blast exposures.
View Article and Find Full Text PDFAccelerated fracture healing accompanied with traumatic brain injury: A review of clinical studies, animal models and potential mechanisms.
J Orthop Translat
January 2025
Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial & Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.
The orthopaedic community frequently encounters polytrauma individuals with concomitant traumatic brain injury (TBI) and their fractures demonstrate accelerated fracture union, but the mechanisms remain far from clear. Animal and clinical studies demonstrate robust callus formation at the early healing process and expedited radiographical union. In humans, robust callus formation in TBI occurs independently of fracture fixation methods across multiple fracture sites.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!