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Methods for Studying Drug Absorption: In vitro

Methods for Studying Drug Absorption: In vitro

In vitro experiments are crucial for understanding the transport and absorption of drugs through biological materials. These studies employ varied methods such as the diffusion cell method, the everted sac technique, and the everted ring technique.
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Raman Spectroscopy: Overview

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Resistivity

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Related Experiment Video

Updated: Feb 8, 2026

$Synthesis and Microdiffraction at Extreme Pressures and Temperatures$

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

High Pressure Raman, Optical Absorption, and Resistivity Study of SrCrO₄.

Malik A Hakeem¹, Daniel E Jackson², James J Hamlin²

¹School of Computing, Science and Engineering , University of Salford , Manchester M5 4WT , United Kingdom.

Inorganic Chemistry

|June 22, 2018

Summary

Strontium chromate (SrCrO4) under high pressure exhibits new phase transitions, altering its conductivity. This study expands pressure ranges, revealing novel high-pressure behaviors without decomposition or metallization.

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$Synthesis and Microdiffraction at Extreme Pressures and Temperatures$

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Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations

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Assessing Murine Resistance Artery Function Using Pressure Myography

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Published on: June 7, 2013

Area of Science:

Solid State Physics
Materials Science
High-Pressure Physics

Background:

Monazite-type strontium chromate (SrCrO4) is a material with interesting electronic and vibrational properties.
Previous studies investigated SrCrO4 under compression, identifying specific phase transitions.

Purpose of the Study:

To investigate the electronic and vibrational properties of monazite-type SrCrO4 under extended high-pressure conditions.
To identify and characterize new phase transitions in SrCrO4 beyond previously reported ranges.

Main Methods:

Experimental study of SrCrO4 under compression up to 58 GPa.
Analysis of electronic and vibrational properties, including conductivity measurements.
Confirmation of known phase transitions and identification of new ones.

Main Results:

Confirmed phase transitions at 9 and 14 GPa.
Discovered two new phase transitions at 35 and 48 GPa.
Observed changes in vibrational and transport properties, with new high-pressure phases showing lower conductivity.

Conclusions:

SrCrO4 undergoes multiple phase transitions under high pressure, extending to 58 GPa.
The new high-pressure phases exhibit reduced conductivity compared to lower-pressure phases.
No evidence of chemical decomposition or metallization was found within the studied pressure range.