Platinum Wire Touch
Platinum Wire Touch - Related Videos
02:37
Touch Habituation Assay: A Method to Study Non-Associative Learning in C. elegans
0 Views •
2023
This video introduces the touch habituation assay, a C. elegans behavioral method of assessing mechanosensation and quantifying time to habituation.
09:17
Hot Wire Anemometry
0 Views •
2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI Hot-wire anemometers have a very short time-response, which makes them ideal to measure rapidly fluctuating phenomena such as turbulent flows. The purpose of this experiment is to demonstrate the use of hot-wire anemometry.
02:26
Responses to Gravity and Touch
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2020
Gravitropism: Plant Responses to Gravity Higher plants sense gravity using statocytes, cells found near the vascular tissue in shoots, and in the root cap columella in roots. Statocytes contain starch-filled organelles called statoliths. The statoliths settle, or sediment, at the bottom of the statocyte in the direction of gravity. Statolith sedimentation triggers a signaling cascade, resulting in the asymmetrical distribution of the plant hormone auxin across root and shoot tips. This...
15:28
Extracellular Wire Tetrode Recording in Brain of Freely Walking Insects
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Cited by 24 •
2014
We previously developed a technique for implanting tetrode wires into the central complex of cockroach brains that allows us to monitor activity in individual units of tethered cockroaches. Here we present a modified version of that technique that allows us to also record brain activity in freely moving insects.
07:51
Mesenteric Artery Contraction and Relaxation Studies Using Automated Wire Myography
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Cited by 37 •
2011
An automated myography method for force measurements in isolated mesenteric arteries is described. It employs a Mulvany-Halpern Auto Dual Wire Myograph 510A to determine responses to phenylephrine and extracellular calcium. The method allows consistent determination of isometric responses to agonists in small vessels of diameters of 60 - 300 μm, independently.
FAQs
The sequence creates a controlled transition from a clean transfer tool to a sampling tool. Heating sterilizes the platinum wire, while cooling occurs before contact with the colony or specimen. This order helps keep material introduced into the receiving culture or test system limited to the intended biological sample rather than contamination carried on the wire.
Controlled contact matters because the wire picks up only a small amount of biological material. That limited inoculum reduces the opportunity for unwanted material to accompany the sample, yet can deliver cells to broth, agar, or another test system. The balance supports interpretable growth and analysis while preserving a more controlled transfer.
Platinum Wire Touch supports pure-culture work by transferring material from a microbial colony or specimen into a receiving medium under controlled contact. In this setting, it can contribute to culture maintenance and isolation of microorganisms. Those uses provide material for subsequent study of microbial morphology, physiology, or identification.
After transferred material grows or enters a test system, the resulting culture can support observations and analyses related to microbial morphology, physiology, and identification. The technique therefore serves as an enabling laboratory step rather than an identification method by itself. Its value comes from delivering biological material into systems where those characteristics can be examined.
First, the platinum wire is heated to sterilize it. The wire is then allowed to cool before it gently contacts a microbial colony or specimen. Finally, the collected material is transferred into broth, agar, or another test system. Maintaining this sequence supports controlled inoculation and limits contamination during the procedure.
Transferred material can be introduced into broth, agar, or another test system, depending on the laboratory task. These destinations allow the same controlled contact approach to support microbial culture maintenance, isolation, growth, analysis, or biochemical testing. The receiving system connects the transfer step to the specific biological question being investigated.