Results 71 to 80 of about 166,185,938 (258)

Limit of detection (LOD).

, 2020
Replicate testing of serial dilutions of HIV-2 NIH-Z isolate in BaseMatrix performed over three (3) assay runs (9 replicates total) were used to calculate the LOD at 95% (79 copies/ml) and 50% (16 copies/ml) confidence limits.
Holly R. Hack (8506224), Ying Liu (18461), Mark M. Manak (8506221), Linda L. Jagodzinski (8506218), Sheila A. Peel (8506227)   +4 more
core   +1 more source

Surrogate‐Optimized Flow‐Guided Miniature Condenser for Rapid Exhaled Glucose Detection

Advanced Materials Technologies, EarlyView.
A surrogate‐optimized miniature condenser guides humid exhaled flow toward cold surfaces to accelerate exhaled breath condensate collection. By improving vapor access within a compact footprint, the design increases sample yield. This enables post‐collection enrichment and rapid colorimetric glucose detection from dilute exhaled biomarkers within a 5 ...
Yiming Thomas Lu, Yamin Mansur, Sai Peri, Jiangyuan Wan, Amio Pronoy Das Ritwik, Emily L. Johnson, Jingcheng Ma   +6 more
wiley   +1 more source

Spatially Configurable Conformal Sensor Integration on an Ultra‐Fine Metallic Needle for Minimally Invasive Deep‐Tissue Oxygen Monitoring

Advanced Materials Technologies, EarlyView.
A multi‐point oxygen‐sensing ultra‐fine needle (MO‐UFN) is developed by conformally integrating a lithographically patterned flexible electrochemical sensor array onto a clinical acupuncture needle. The platform preserves an approximately 0.3 mm diameter while enabling spatially resolved oxygen profiling along the insertion pathway.
Yeju Seo, Jaeho Park, Yongrok Jeong, Ji‐Hwan Ha, Junseong Ahn, Jimin Gu, Su A Park, Ilwoo Jun, Kichul Lee, Inkyu Park   +9 more
wiley   +1 more source

Precision profile analysis of variance for assessing the analytical sensitivity of a digital PCR assay using α and β values of 5% for Limit of Blank (LoB) and Limit of Detection (LOD), respectively.

, 2021
Precision profile analysis of variance for assessing the analytical sensitivity of a digital PCR assay using α and β values of 5% for Limit of Blank (LoB) and Limit of Detection (LOD), respectively.
Fabio Gentilini (3177450), Vittorio Sambri (92790), Maria Elena Turba (6055205), Michela Fantini (11858649), Francesca Taddei (11858643), Giorgio Dirani (11858652), Tommaso Gritti (11858646)   +6 more
core   +1 more source

Laser Desorption of Explosives from the Surface of Different Real-World Materials Studied Using C₂Cl₆-Dopant-Assisted Ion Mobility Spectrometry

Molecules
A highly efficient and sensitive ion mobility spectrometry (IMS) system with laser desorption sampling was applied for rapid explosive detection using different surface materials.
Emanuel Maťaš, Matej Petrík, Martin Sabo, Štefan Matejčík   +3 more
doaj   +1 more source

Attomolar Detection of HIV‐1 With Label‐Free RCA‐rCRISPR on Smartphone

Advanced Science, EarlyView.
A new diagnostic strategy integrating rolling circle amplification (RCA) with a plasmid reporter–based ratiometric CRISPR (rCRISPR) system was developed to detect unfragmented HIV genomes with single‐digit attomolar sensitivity. The method quantifies targets using the plasmid relaxation ratio and employs a smartphone‐based mini‐gel device to enable ...
Noor Mohammad, Anastasiia Steksova, Yuyang Tang, Leyao Huang, Alireza Velayati, Shengwei Zhang, Aditi Dey Poonam, Sina Jamalzadegan, Matthew Breen, Hongjie Chen, Mahsa Bagi, Guochun Jiang, Qingshan Wei   +12 more
wiley   +1 more source

The wavelength, coefficient of determination (r²), the limit of detection (LOD), the limit of quantitation (LOQ) and recovery values for the method used for the determination of elements in rice and soil using flame atomic absorption spectroscopy.

, 2023
The wavelength, coefficient of determination (r2), the limit of detection (LOD), the limit of quantitation (LOQ) and recovery values for the method used for the determination of elements in rice and soil using flame atomic absorption spectroscopy.
Abebe Desalew (17240724), Bewketu Mehari (17240727)   +1 more
core   +1 more source

Comparison of Different Approaches for Calculating LOD and LOQ in an HPLC-Based Analysis Method [PDF]

Pharmaceutical Sciences
Background: Sensitivity in the determination of the drug concentration is critical in pharmaceutical analysis. This research investigates several approaches for determining two sensitivity parameters, the Limit of Detection (LOD) and the Limit of ...
Raha Kaviani
doaj   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Assay characteristics and limit of detection (LOD) of published P. falciparum detection assays.

, 2015
aIsothermal amplification process.QT-NASBA, quantitative NASBA.Assay characteristics and limit of detection (LOD) of published P. falciparum detection assays.
Felista Mwingira (697416), Ingrid Felger (92160), Ivo Mueller (46609), Seif Shekalaghe (79961), Natalie Hofmann (697415), Leanne J. Robinson (137914)   +5 more
core   +1 more source