Results 1 to 10 of about 2,419,010 (304)

Stability and Detection Limit of Avian Influenza, Newcastle Disease Virus, and African Horse Sickness Virus on Flinders Technology Associates Card by Conventional Polymerase Chain Reaction [PDF]

open access: yesAnimals
The Flinders Technology Associates (FTA) card, a cotton-based cellulose membrane impregnated with a chaotropic agent, effectively inactivates infectious microorganisms, lyses cellular material, and fixes nucleic acid.
Machimaporn Taesuji   +3 more
doaj   +2 more sources

Toward single particle reconstruction without particle picking: Breaking the detection limit [PDF]

open access: gold, 2018
Single-particle cryo-electron microscopy (cryo-EM) has recently joined X-ray crystallography and NMR spectroscopy as a high-resolution structural method for biological macromolecules.
Tamir Bendory   +4 more
openalex   +3 more sources

Concentration Sensitivity of Nucleic Acid and Protein Molecule Detection Using Nanowire Biosensors

open access: yesBiophysica, 2021
The concentration detection limit (DL) of biomacromolecules attainable using a nanowire detector has become a topical issue. A DL of 10−15 M is required to reveal oncological and infectious diseases at an early stage.
Yuri D. Ivanov   +3 more
doaj   +1 more source

Calibration of Tritium Microcalorimeter and Calorimetric Verification of Tritium Samples

open access: yesJournal of Isotopes, 2023
Radioactive isotope decay gives off heat, which is an important basis for calculating the activity of radioactive isotope. In order to measure the heat emitted by tritium decay, the detection limit test, working curve calibration and tritium sample ...
OUYANG Huiping;YUAN Xiaoming;HE Changshui;LI Zhuoxi;ZHANG Peixu;YANG Hongguang
doaj   +1 more source

Spectral Assessment of Organic Matter with Different Composition Using Reflectance Spectroscopy

open access: yesRemote Sensing, 2021
Soil surveys are critical for maintaining sustainable use of natural resources while minimizing harmful impacts to the ecosystem. A key soil attribute for many environmental factors, such as CO2 budget, soil fertility and sustainability, is soil organic ...
Nicolas Francos   +2 more
doaj   +1 more source

A converyor belt-based small article pollution monitoring instrument and performance test

open access: yesHe jishu, 2022
Background At present, most of the contamination detection equipments for small items in domestic nuclear power plants are manually putting in and taking out the testing items, and the operation time is long and the steps are relatively tedious ...
QIAO Minjuan   +6 more
doaj   +1 more source

Facile synthesized carbon dots for simple and selective detection of cobalt ions in aqueous media

open access: yesCogent Engineering, 2022
A simple method was demonstrated for detecting cobalt ions based on the fluorescence quenching of carbon dots (CDots). The best quantum yield for CDots synthesized by microwaving lime and methanolamine is 49.42%. The detection range of this research is 0–
Ilham Alkian   +4 more
doaj   +1 more source

Calculating the Limits of Detection in Laser-Induced Breakdown Spectroscopy: Not as Easy as It Might Seem

open access: yesApplied Sciences, 2023
The objectives of this paper will be to discuss the issues related to the determination of the limits of detection (LOD) in laser-induced breakdown spectroscopy (LIBS) analytical applications. The derivation of the commonly used ‘3-sigma over slope’ rule
Francesco Poggialini   +6 more
doaj   +1 more source

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