Sample preparation is a fundamental laboratory technique encompassing all procedures required to convert a raw specimen into a form suitable for analytical measurement or experimental manipulation, while preserving analyte integrity and representativeness. It typically includes sampling, homogenization, separation, purification, concentration, and, when necessary, chemical derivatization. Methods vary by matrix and analytical modality (e.g., filtration, centrifugation, extraction, digestion, or fixation for microscopy), and are optimized to minimize contamination, losses, matrix effects, and chemical transformations. Rigorous sample preparation is critical for achieving accuracy, precision, sensitivity, and reproducibility in techniques such as chromatography, mass spectrometry, spectroscopy, and molecular biology assays.
A University of Melbourne-led team has perfected a technique for embedding single atoms in a silicon wafer one-by-one. Their technology offers the potential to make quantum computers using the same methods that have given ...
Nanophysics
Jan 12, 2022
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1594
As our lifestyles become ingrained in flexible electronics, smart devices, artificial intelligence, the internet of things, etc., high performance, electronic components that can perform high speed data collection, processing, ...
Nanomaterials
Nov 16, 2021
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128
Recently, researchers developed high-performance solar thermal copper sulfide photothermal ink and photothermal film, marking big progress in the field of Plasmonic Solar photothermal Materials.
Nanomaterials
Nov 5, 2021
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172
Since graphene was awarded the Nobel Prize in 2010, two-dimensional (2D) materials have continued to attract researchers' attention in logic, storage, optoelectronic and photonic 2D device manufacturing fields because of ...
Nanomaterials
Oct 20, 2021
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75
Monolayer graphene finds practical applications in many fields, thanks to its desirable intrinsic properties. However, these properties can also limit its potentials. The addition of foreign atoms can help, but requires precise ...
Nanomaterials
Sep 1, 2021
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265
Being able to detect DNA from a single cell is important for the detection of diseases and genetic disorders. Measuring single DNA molecules has been possible for some time; however, directly detecting samples at the point ...
Bio & Medicine
Aug 24, 2021
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281
Researchers from Tokyo Metropolitan University have used high power impulse magnetron scattering (HiPIMS) to create thin films of tungsten with unprecedentedly low levels of film stress. By optimizing the timing of a substrate ...
Nanophysics
Jul 5, 2021
0
79
Material scientists have developed a fast method for producing epsilon iron oxide and demonstrated its promise for next-generation communications devices. Its outstanding magnetic properties make it one of the most coveted ...
Nanophysics
Jun 28, 2021
1
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