A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver Nanoparticles

Pharmaceutical product quality is of vital importance for patient safety. Impurities and potential degradation products can cause changes in chemistry, pharmacological and toxicological properties by having a significant impact on product quality and safety. Stress-testing (forced degradation) studi...

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Main Authors: Hulya Yilmaz, Mustafa Culha
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/4/1807
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author Hulya Yilmaz
Mustafa Culha
author_facet Hulya Yilmaz
Mustafa Culha
author_sort Hulya Yilmaz
collection DOAJ
description Pharmaceutical product quality is of vital importance for patient safety. Impurities and potential degradation products can cause changes in chemistry, pharmacological and toxicological properties by having a significant impact on product quality and safety. Stress-testing (forced degradation) studies of pharmaceutical preparations became necessary to assure degradation mechanisms and potential degradation products. Consequently, it is crucial to understand the nature of possible degradation products. Surface-enhanced Raman spectroscopy (SERS) is a powerful vibrational spectroscopic technique that can provide valuable information about changes in a molecular structure with its intrinsic finger-print property. In this study, a forced degradation study was conducted on pemetrexed (PMT), an antifolate chemotherapy drug, in order to identify its likely chemical degradation products. The degradation mechanism of PMT was investigated under various experimental conditions; basic (0.1 M NaOH), acidic (0.1 M HCl), and oxidative (3% H<sub>2</sub>O<sub>2</sub><i>v/v</i>). We used silver nanoparticles (AgNPs) of average size 60 nm as SERS substrates. The study shows that SERS can be a fast and reliable technique to study the stability and possible degradation mechanisms of drugs under several different conditions.
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spelling doaj.art-c73dbbecb05140dca46a5d30248a9c472023-11-23T18:34:28ZengMDPI AGApplied Sciences2076-34172022-02-01124180710.3390/app12041807A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver NanoparticlesHulya Yilmaz0Mustafa Culha1Sabanci University Nanotechnology Research and Application Center (SUNUM), Istanbul 34956, TurkeySabanci University Nanotechnology Research and Application Center (SUNUM), Istanbul 34956, TurkeyPharmaceutical product quality is of vital importance for patient safety. Impurities and potential degradation products can cause changes in chemistry, pharmacological and toxicological properties by having a significant impact on product quality and safety. Stress-testing (forced degradation) studies of pharmaceutical preparations became necessary to assure degradation mechanisms and potential degradation products. Consequently, it is crucial to understand the nature of possible degradation products. Surface-enhanced Raman spectroscopy (SERS) is a powerful vibrational spectroscopic technique that can provide valuable information about changes in a molecular structure with its intrinsic finger-print property. In this study, a forced degradation study was conducted on pemetrexed (PMT), an antifolate chemotherapy drug, in order to identify its likely chemical degradation products. The degradation mechanism of PMT was investigated under various experimental conditions; basic (0.1 M NaOH), acidic (0.1 M HCl), and oxidative (3% H<sub>2</sub>O<sub>2</sub><i>v/v</i>). We used silver nanoparticles (AgNPs) of average size 60 nm as SERS substrates. The study shows that SERS can be a fast and reliable technique to study the stability and possible degradation mechanisms of drugs under several different conditions.https://www.mdpi.com/2076-3417/12/4/1807forced degradationdrugsurface-enhanced Raman scatteringstress testingstability
spellingShingle Hulya Yilmaz
Mustafa Culha
A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver Nanoparticles
Applied Sciences
forced degradation
drug
surface-enhanced Raman scattering
stress testing
stability
title A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver Nanoparticles
title_full A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver Nanoparticles
title_fullStr A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver Nanoparticles
title_full_unstemmed A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver Nanoparticles
title_short A Drug Stability Study Using Surface-Enhanced Raman Scattering on Silver Nanoparticles
title_sort drug stability study using surface enhanced raman scattering on silver nanoparticles
topic forced degradation
drug
surface-enhanced Raman scattering
stress testing
stability
url https://www.mdpi.com/2076-3417/12/4/1807
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AT mustafaculha drugstabilitystudyusingsurfaceenhancedramanscatteringonsilvernanoparticles