Transmission Electron Microscopy (TEM) Detection

SERVICE NO:

The Transmission Electron Microscope (TEM) is a kind of microscope that uses a high-energy electron beam to penetrate the sample and form an image through an electromagnetic lens. It can provide extremely high resolution, usually reaching the sub-nanometer level. The high resolution and diverse imaging modes of TEM make it an indispensable tool in scientific research and technological development, and thus it is widely used in fields such as materials science, biology, and chemistry.

TEM uses an electron gun to emit a high-energy electron beam, which is focused and adjusted through a series of electromagnetic lenses. The electron beam penetrates a very thin sample. The atoms in the sample interact with the electrons, causing the scattering and absorption of the electron beam. After passing through the objective lens, a preliminary magnified image is formed. Then, it is further magnified through the intermediate mirror and the projection mirror, and finally an image is formed on the fluorescent screen or CCD camera. The main modes include bright field imaging (BF) : Only directly transmitted electrons participate in the imaging, which is suitable for observing the overall structure of the sample. Dark-field imaging (DF) : Only scattered electrons are involved in the imaging, making it suitable for observing specific crystal structures or defects in samples. High-resolution image (HRTEM) : By utilizing the interference effect of electron waves, it directly observes the atomic arrangement of the sample. Diffraction mode (SAED) : By selecting specific regions for electron diffraction, the crystal structure of the sample is analyzed.

BOT Bioscience offers proficient TEM testing services. Through TEM, researchers can obtain detailed structural information of the samples, thereby gaining a deeper understanding of the properties and behaviors of the materials.

Detection Process

Sample preparation - Equipment preparation - Data collection - Data analysis - Result archiving

Sample Requirements

Nanoparticles limited to powder or suspension

Biological samples such as liposomes

Reference morphology images can be provided in advance. If the sample contains such a morphology, please try your best to help pick and take pictures (if there is one).

Note:

1. Solid block samples cannot be sliced, and electrons cannot penetrate and form images.

2. If you need a specific magnification or scale, please specify it in advance. Otherwise, we will default to shooting according to our rules.

3. Based on the sample, the appearance of the sample cannot be controlled. If the expected appearance is not found in the sample, it is related to the sample and will be charged normally.

Price

500 rmb per sample

Provide the Result

Provide 3 to 5 pictures

Service Advantage

Advanced equipment: TEM can provide atomic-level resolution, far exceeding that of optical microscopes and other electron microscopes, ensuring the accuracy and reliability of the test results.

Technical support: TEM testing services are usually operated by experienced technicians, who can provide professional support for sample preparation, data collection and result analysis.

Comprehensive service: From sample pretreatment, TEM detection to post-processing data and image analysis, we offer one-stop service to meet customers' all-round needs from initial research to in-depth analysis.

Rapid response and efficient delivery: Respond promptly to customer demands, and under the premise of ensuring quality, shorten the testing cycle as much as possible and accelerate the research progress.

Application Field

Materials Science: Observing the microstructure, crystal defects, phase transitions, etc. of materials

Biology: The study of the structures of biological macromolecules such as cells, viruses, and proteins

Food science: It studies the microstructure of food, such as the distribution of proteins, fats and carbohydrates

Medicine: Studying the ultrastructural changes in pathological tissues to assist in disease diagnosis; Observe the morphology and structure of the drug carrier

Chemistry: Analyze the morphology, structure and composition of the catalyst, and study its catalytic mechanism; Study the microstructure and phase separation behavior of polymer materials; Observe the morphology, size distribution and crystal structure of the nanoparticles

l Environmental science: Studying the morphology and composition of pollutants such as atmospheric particulate matter and nanoparticles in water treatment; Analyze the microstructure and performance of environmental materials (such as adsorbents and catalysts)

Service Process

After both parties reach an agreement through communication, the experimental plan is determined, the service requirements are set - the contract is signed - the advance payment is made - the experiment begins - the results are delivered