Luigi Raspolini

Luigi Raspolini is an Application Engineer at Thermo Fisher Scientific, the world leader in serving science. Luigi is constantly looking for new approaches to materials characterization, surface roughness measurements and composition analysis. He is passionate about improving user experiences and demonstrating the best way to image every kind of sample.

How SEM helps research polymers characteristics, properties, and uses

By Luigi Raspolini - Apr 19, 2018

Polymers have many uses and applications: engineered combinations of monomers produce a nearly infinite number of molecules with different properties, which are determined by the chemical composition and structure of the molecule. The form of the molecule has a big influence on how the polymer will behave when exposed to different external forces. In this blog, you’ll find practical examples of how Scanning Electron Microscopes (SEMs) can provide unexpected results.

Polymers have many uses and applications: engineered combinations of monomers produce a nearly infinite number of molecules with different properties, which are determined by the chemical composition and structure of the molecule. The form of the molecule has a big influence on how the polymer will behave when exposed to different external forces. In this blog, you’ll find practical examples of how Scanning Electron Microscopes (SEMs) can provide unexpected results.

Read more

SEM and fiber analysis for filtration systems quality control

By Luigi Raspolini - Feb 16, 2018

The production of filters and membranes undergoes several quality control steps to ensure that the properties of the product are up to specification. Different tools can be used for such analysis, but only one can provide the best results. Find out in this blog how Scanning Electron Microscopes (SEM) can be used to investigate imperfections in metallic filters.

The production of filters and membranes undergoes several quality control steps to ensure that the properties of the product are up to specification. Different tools can be used for such analysis, but only one can provide the best results. Find out in this blog how Scanning Electron Microscopes (SEM) can be used to investigate imperfections in metallic filters.

Read more

SEM & EDS: contamination detection and chemical composition analysis equipment

By Luigi Raspolini - Jan 12, 2018

Imperfections and small malfunctions in machines can sometimes cause contamination of the final products that roll off the production line. Metal particles can detach from the moving part of machines because of usage and friction and deposit on the product, sometimes compromising its quality irreversibly. This blog describes a technique that not only allows you to inspect for the presence of contamination, but also to identify its origination.

Imperfections and small malfunctions in machines can sometimes cause contamination of the final products that roll off the production line. Metal particles can detach from the moving part of machines because of usage and friction and deposit on the product, sometimes compromising its quality irreversibly. This blog describes a technique that not only allows you to inspect for the presence of contamination, but also to identify its origination.

Read more

How to prevent oxidative damage to a scanning electron microscope sample

By Luigi Raspolini - Dec 7, 2017

O2 is an extremely reactive gas, and some materials don’t get along well with it. Oxidation processes are activated as soon as certain samples are exposed to the atmosphere and this affects the structure and characteristics of the samples — in most cases permanently. This blog explains how such effects can be prevented and how SEM analysis can be performed on oxygen-sensitive samples without compromising the structure of the sample itself.

O2 is an extremely reactive gas, and some materials don’t get along well with it. Oxidation processes are activated as soon as certain samples are exposed to the atmosphere and this affects the structure and characteristics of the samples — in most cases permanently. This blog explains how such effects can be prevented and how SEM analysis can be performed on oxygen-sensitive samples without compromising the structure of the sample itself.

Read more

How electron microscopy fuels the development of eco-friendly polymers

By Luigi Raspolini - Oct 12, 2017

Thermosetting polymers are widely used in modern industry due to their specific chemical and physical properties. With a wide range of applications, from components of huge aircraft to small electronics, epoxies are one of the main products of the polymers industry. This blog will focus on how these materials are improved and made eco-friendly, by making use of a scanning electron microscope (SEM).

Thermosetting polymers are widely used in modern industry due to their specific chemical and physical properties. With a wide range of applications, from components of huge aircraft to small electronics, epoxies are one of the main products of the polymers industry. This blog will focus on how these materials are improved and made eco-friendly, by making use of a scanning electron microscope (SEM).

Read more

Why hi-tech textile engineering requires SEM analysis

By Luigi Raspolini - Sep 28, 2017

It’s been a long time since the textile industry relied exclusively on natural fibers. Over the decades, synthetic fibers have proven to be cheaper, easier to produce and often perform better. At the same time, chemical treatments have been developed that improve the smoothness and the resistance of both natural and synthetic fibers, which has resulted in higher quality products. Read this blog for more information on how electron microscopy can play a fundamental role in this development process.

It’s been a long time since the textile industry relied exclusively on natural fibers. Over the decades, synthetic fibers have proven to be cheaper, easier to produce and often perform better. At the same time, chemical treatments have been developed that improve the smoothness and the resistance of both natural and synthetic fibers, which has resulted in higher quality products. Read this blog for more information on how electron microscopy can play a fundamental role in this development process.

Read more

Sample preparation techniques for SEM to neutralize the effect of vacuum

By Luigi Raspolini - Aug 24, 2017

Scanning electron microscopes (SEM) scan the surface of the sample with an electron beam, collecting reflected electrons which carry information about the material the electrons interact with. If gas is in the sample chamber, its atoms interact with the beam, partly deflecting electrons and adding noise to the image. 

This is the reason why vacuum must be achieved in SEM before imaging. But while vacuum is crucial for proper analysis, it can also have a negative effect on certain types of materials. Read this blog to learn how you can neutralize vacuum and keep your samples intact.

Scanning electron microscopes (SEM) scan the surface of the sample with an electron beam, collecting reflected electrons which carry information about the material the electrons interact with. If gas is in the sample chamber, its atoms interact with the beam, partly deflecting electrons and adding noise to the image. 

This is the reason why vacuum must be achieved in SEM before imaging. But while vacuum is crucial for proper analysis, it can also have a negative effect on certain types of materials. Read this blog to learn how you can neutralize vacuum and keep your samples intact.

Read more

Expert sample preparation techniques for SEM

By Luigi Raspolini - Aug 17, 2017

When using a scanning electron microscope (SEM) for the first time, you might have doubts about what can be imaged. You might also struggle to get the image quality you were expecting. Luckily, you can easily improve your results by following the simple yet powerful sample preparation techniques for SEM in this blog. Read on! 

When using a scanning electron microscope (SEM) for the first time, you might have doubts about what can be imaged. You might also struggle to get the image quality you were expecting. Luckily, you can easily improve your results by following the simple yet powerful sample preparation techniques for SEM in this blog. Read on! 

Read more

SEM sample tilting: how to keep the area of interest within the field of view

By Luigi Raspolini - Aug 10, 2017

Certain samples are tricky to image. Sometimes, even the best sample preparation will be of no help in finding the results you need. Surface roughness and features on top of the sample might hide the specific area of interest, which could contain crucial information about surface defects or characteristics of the imaged material. In cases like this, you need a new point of view. Read this blog to discover how you can get just that.

Certain samples are tricky to image. Sometimes, even the best sample preparation will be of no help in finding the results you need. Surface roughness and features on top of the sample might hide the specific area of interest, which could contain crucial information about surface defects or characteristics of the imaged material. In cases like this, you need a new point of view. Read this blog to discover how you can get just that.

Read more

Microscopy resolution resolved! A simple explanation for an often misunderstood term

By Luigi Raspolini - Mar 24, 2017

There are different definitions of resolution and they depend on what kind of application you are working on. This blog's intent is to highlight and clarify the differences between the resolution of a LCD screen and the idea of resolution in microscopy.

There are different definitions of resolution and they depend on what kind of application you are working on. This blog's intent is to highlight and clarify the differences between the resolution of a LCD screen and the idea of resolution in microscopy.

Read more

Press Room | Privacy Policy | Terms of Use | Sitemap |