This article examines how micropositioners affect movement and positioning capability, as well as overall task effectiveness, by creating --literally -- a solid foundation for work at the nanoscale.
Progress in understanding the lipid bilayer – a two-molecule thick oily barrier that protects all living cells – has been dramatic over the past 100 years. But puzzles remain to be solved, such as how these membrane proteins navigate the oily lipid bilayer to go about their work.
Applying physics to the properties and underlying structures of the molecules of life offers an insight into the mechanisms that make living beings tick. But even seemingly simple actions like muscle contraction involve a wide array of biological interactions, which has shrouded the dynamics and function of individual molecules behind a curtain of complexity. The scientific community has developed a powerful toolbox of methods to probe these interactions over the past two decades, uncovering previously hidden information about the structure, dynamics and function of individual biomolecules.
Every nanopositioner has a small amount of uncertainty in its position that contributes noise to a measurement. It's important to understand what position noise is and where it comes from in order to know just how accurate the nanopositioner is.
Total internal reflection fluorescence (TIRF) microscopy is used to watch biological processes unfold in real time. Taking advantage of the ability to label individual molecules with different colors of fluorescent tags, TIRF microscopy lets scientists view the complex molecular assemblies that govern cellular processes.
Atomic force microscopes (AFMs) are versatile tools for characterizing surfaces down to the subnanometer scale. Researchers can build their own AFMs for as little as $30,000 using off-the-shelf components such as nanopositioning stages.
The RM21™ Advanced Microscope is our most versatile inverted optical microscope capable of supporting super resolution microscopy, multi-spectral CoSMoS, and a variety of light microscopy methods. It is ideal for single molecule localization microscopy and epifluorescence microscopy but can be extended to other microscopy methods including optical and magnetic tweezers, and AFM integration.
The RM21™ Classic Microscope is an inverted optical microscope that has been specifically designed for nanometer scale microscopy. It is ideal for single molecule localization microscopy and epifluorescence microscopy but can be extended to other microscopy methods.
The RM21™ Versa Microscope is an inverted optical microscope with a fixed objective lens position for maximum stability. It includes a sub-nanometer precision, Z-axis closed loop piezo nanopositioning system designed to meet the requirements of super resolution microscopy. The RM21™ Versa microscope is ideal for single molecule localization microscopy and epifluorescence microscopy where sub-nanometer precision is only required in the Z-axis.
The MCL-NSOM is a fully operational near-field scanning optical microscope that features a 635 nm laser excitation source, fiber launch, an oil immersion objective lens, a CMOS alignment camera, and an avalanche photodiode detector. It is designed to allow users to convert between NSOM, SPM, and fluorescence optical microscopy techniques.
|
|
|
|
|
|
|
|
|