Author Archives: Maria Ma


Published 11 Aug 2021

Sensitive Teeth, Toothpaste Formulation, and Particle Size

Email: “Here is a Reminder from Your Dentist”  I: Delete… Sorry, covid.  ……. until recently when my teeth got too sensitive. I finally went to the dentist only to find five teeth to be filled.  Lying on the dental chair, I got curious:…READ MORE >

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Published 15 Jun 2021

Laser Diffraction for Particle Sizing – Sample Concentration/Dilution (2)

In my last blog, we covered: Why does sample concentration matter? How will it affect results? What is the right concentration range to be measured? Here, we will continue the discussion on: 4. How to prepare and control the sample…READ MORE >

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Published 11 May 2021

Laser Diffraction for Particle Sizing – Sample Concentration/Dilution (1)

“We need to characterize particle size distribution quickly and statically. The estimated size range falls into that covered by laser diffraction. Now what?” Now – sample preparation: Can we actually prepare the samples to be measured properly? When it comes…READ MORE >

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Published 28 Jan 2021

Laser Diffraction for Particle Sizing – Theory Simply Explained in One Figure

Of course. We have very well written notes and instructions. And with our help on method developments, cases are rare when we ponder on the fundamental theories behind the technology of Mastersizer 3000. Nevertheless, we will need to troubleshoot, to…READ MORE >

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Published 13 Aug 2020

Disinfecting Sprays and Droplet Size

Call me nuts. Early March, I was still living on the road across the country. I knew COVID-19 was there. Having worked in a BSL-2 (Biosafety Level 2) lab for years, I thought I had a good handle over it….READ MORE >

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Published 14 Jul 2020

To Beauty and Personal Care Industry: How We Can Help You Adjust to the Impact of COVID-19 (Part 2)

What do we care about to develop moisturizer & hand sanitizer? We care about what consumers do. Take a look at important properties and how to analyze them.

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Published 25 Jun 2020

To Beauty and Personal Care Industry: How we can help you adjust to the impact of COVID-19 (Part 1)

This pandemic is shaping our hygiene habits, irreversibly. Consumers are demanding a greater amount of products related to personal hygiene.

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