Insight

Characterization of Nanoparticle

New Analysis of Red Blood Cells (RBC) using the ZetaPALS

By Bruce B. Weiner Ph.D. Introduction: Zeta potential is a useful property to know for colloids, nanoparticles, and proteins. It is a substitute for the otherwise hard to measure surface charge. The zeta potential is not equal to the surface potential but rather it is the electrostatic potential difference between a rotationally averaged point at the […]

Applications: BiopharmaDiagnosticZeta
Instruments: NanoBrook Series
Posted on: Nov 8, 2019
CBD Nanoemulsions

Comparing the Effects of Two Different Lipophilic Surfactants on the Zeta Potential of CBD Nanoemulsions

Comparing the Effects of Two Different Lipophilic Surfactants on the Zeta Potential of CBD Nanoemulsions Cannabidiol, CBD, is a non-psychoactive chemical compound obtained from Cannabis sativa. CBD has many benefits including anti-inflammatory properties and neuropathic pain relief, which may be preferred over other pain-relieving methods due to its non-addictive characteristics. CBD is lipophilic oil and […]

Applications: EmulsionsFormulationsZeta
Instruments: NanoBrook Series
Posted on: Mar 24, 2023
CBD Nanoemulsions

Dynamic Light Scattering (DLS) & CBD Nanoemulsions

Summary Cannabidiol, CBD, is a non-psychoactive chemical compound obtained from Cannabis sativa, more specifically the hemp plant. CBD has many benefits including anti-inflammatory properties and neuropathic pain relief, which may be preferred over other pain-relieving methods due to its non-addictive characteristics. Furthermore, CBD can be helpful in managing anxiety and mood disorders, improving sleep, and […]

Applications: DLSEmulsionsFormulationsSample Prep
Instruments: NanoBrook Series
Posted on: Mar 8, 2023

What Is Particle Size Distribution Weighting? How to Get Fooled About What Was Measured & What it Means

Introduction Some particle size instruments determine size for individual particles. They are single particle counters. Some instruments determine surface area as a function of particle size. Some instruments determine mass or volume vs size. And some instruments determine various functions of scattered light intensity as a function of size. All can produce particle size distributions. […]

Posted on: Feb 8, 2023

Zeta Potential Performance Verification

Summary The purpose of this guide is to demonstrate the proper method for preparing a zeta potential validation sample used for checking the performance of the NanoBrook ZetaPlus, ZetaPALS, 90PlusPALS, and Omni instrumentation. The BI-ZR5 validation material is a dark blue, inorganic powder that is insoluble in water. It has a mean particle size of […]

Applications: Sample PrepZeta
Instruments: NanoBrook Series
Posted on: May 13, 2022

Interview with Dr. Bruce Weiner

Brookhaven Instruments Corporation has been pioneering advancements in particle characterization instrumentation for 40 years. To celebrate this milestone we spoke to one of Brookhaven’s founders, Dr. Bruce Weiner, about the company’s inception and earlier years. Can you name a few scientists that have inspired you in your life or career? “Let’s start with Prof. Carl […]

Posted on: Sep 21, 2021
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