Wet Mass
Wet Mass - Related Videos
06:15
Wet Chemistry and Peptide Immobilization on Polytetrafluoroethylene for Improved Cell-adhesion
0 Views •
Cited by 10 •
2016
Cell-adhesiveness is key to many approaches in biomaterial research and tissue engineering. A step-by-step technique is presented using wet-chemistry for the surface modification of the important polymer PTFE with peptides.
06:26
Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
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2017
Here, we present a protocol to trigger an orientational transition of a liquid crystal in response to temperature. Methodologies are described for preparing a sample in order to observe the transition and the detailed transitional evolution.
08:59
Dry Oxidation and Vacuum Annealing Treatments for Tuning the Wetting Properties of Carbon Nanotube Arrays
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Cited by 11 •
2013
This article describes a simple method to fabricate vertically aligned carbon nanotube arrays by CVD and to subsequently tune their wetting properties by exposing them to vacuum annealing or dry oxidation treatment.
10:23
Lipid Droplet Isolation for Quantitative Mass Spectrometry Analysis
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Cited by 7 •
2017
Lipid droplets are important organelles for the replication of several pathogens, including the Hepatitis C Virus (HCV). We describe a method to isolate lipid droplets for quantitative mass spectrometry of associated proteins; it can be used under a variety of conditions, such as virus infection, environmental stress, or drug treatment.
01:52
Atomic Mass
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2020
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which are...
FAQs
Water content can vary independently of the sample’s cellular or tissue solids, causing wet mass to rise or fall without an equivalent change in biomass. Handling conditions, surface liquid, and measurement timing therefore influence the result. Researchers should interpret changes alongside water content or dry mass when distinguishing altered hydration from genuine growth or material accumulation.
Wet mass includes the sample’s water, whereas dry mass represents the remaining solids after drying. This distinction matters because samples with similar wet masses may contain different amounts of biological material if their water content differs. Pairing both measurements helps determine whether an observed difference reflects sample solids, hydration, or a combination of the two.
Consistent removal of surface liquid, timing, and measurement conditions are central to reliable results. Residual liquid can increase the recorded value, while inconsistent delays can allow samples to gain or lose water before weighing. Applying the same handling procedure to every sample improves comparisons across cells, tissues, organisms, or cultures.
Researchers first collect the cells, tissue, organism, or culture material, then gently remove surface liquid without changing the sample itself. They weigh the material under defined conditions and record the result. Using the same collection, liquid-removal, timing, and weighing conditions for all samples reduces handling-related variation and makes the measurements more comparable.
Wet mass provides a rapid way to monitor changes in sample size or biomass during biological work. It can support growth monitoring, biomass harvesting, comparisons among tissue samples, and assessment of physiological changes. Its speed makes it practical for repeated measurements, provided that changing water content does not obscure the biological difference being investigated.
Results should be accompanied by the conditions used for collection, surface-liquid removal, timing, and weighing, because these factors affect the recorded value. Where water content may differ among samples, researchers should report that information or include dry-mass measurements. This added context helps readers judge whether differences represent solids, hydration, or both.