Terahertz Spectroscopy for Accurate Identification of Basing on Nonconjugated 24(R)-Pseudoginsenoside F.

Plant Phenomics

Terahertz Technology Innovation Research Institute, Shanghai Key Lab of Modern Optical System, Terahertz Science Cooperative Innovation Center, University of Shanghai for Science and Technology, Shanghai Institute of Intelligent Science and Technology, Shanghai, China.

Published: January 2021

is a perennial herbaceous plant that contains many beneficial ginsenosides with diverse pharmacological effects. 24(R)-pseudoginsenoside F is specific to . , a useful biomarker for distinguishing this species from other related plants. However, because of its nonconjugated property and the complexity of existing detection methods, this biomarker cannot be used as the identification standard. We herein present a stable 24(R)-pseudoginsenoside F fingerprint spectrum in the terahertz band, thereby proving that F can be detected and quantitatively analyzed via terahertz spectroscopy. We also analyzed the sample by high-performance liquid chromatography-triple quadrupole mass spectrometry. The difference between the normalized data for the two analytical methods was less than 5%. Furthermore, . from different areas and other substances can be clearly distinguished based on these terahertz spectra with a standard principal component analysis. Our method is a fast, simple, and cost-effective approach for identifying and quantitatively analyzing . .

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8043154PMC
http://dx.doi.org/10.34133/2021/6793457DOI Listing

Publication Analysis

Top Keywords

terahertz spectroscopy
8
terahertz
4
spectroscopy accurate
4
accurate identification
4
identification basing
4
basing nonconjugated
4
nonconjugated 24r-pseudoginsenoside
4
24r-pseudoginsenoside perennial
4
perennial herbaceous
4
herbaceous plant
4

Similar Publications

Advances in Nanoengineered Terahertz Technology: Generation, Modulation, and Bio-Applications.

Research (Wash D C)

January 2025

Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore.

Article Synopsis
  • Recent advancements in nanotechnology have led to the development of compact and efficient terahertz (THz) devices, utilizing structures like nano-thick heterostructures and metasurfaces for better control over THz wave generation and modulation.
  • These innovations have significantly improved THz spectroscopy, imaging, and bio-applications, resulting in enhanced resolution and sensitivity for various uses.
  • The review covers the latest generation and modulation techniques, explores novel biosensing methods, and discusses future challenges and trends in this evolving field, aiming to provide insights for the development of next-generation THz technologies.
View Article and Find Full Text PDF

[Rapid non-destructive detection technology for traditional Chinese medicine preparations based on machine learning: a review].

Zhongguo Zhong Yao Za Zhi

December 2024

Key Laboratory of Modern Preparation of TCM,Ministry of Education, Jiangxi University of Chinese Medicine Nanchang 330004, China National Key Laboratory of Creation of Modern Chinese Medicine with Classical Formulas Nanchang 330004, China.

In recent years, with the increasing societal focus on drug quality and safety, quality issues have become a major challenge faced by the pharmaceutical industry, directly impacting consumer health and market trust. By combining multispectral imaging technology with machine learning, it is possible to achieve rapid, non-destructive, and precise detection of traditional Chinese medicine(TCM) preparations, thereby revolutionizing traditional detection methods and developing more convenient and automated solutions. This paper provides a comprehensive review of the current applications of rapid, non-destructive detection techniques based on machine learning algorithms in the field of TCM preparations.

View Article and Find Full Text PDF

Photoinduced Fröhlich Interaction-Driven Distinct Electron- and Hole-Polaron Behaviors in Hybrid Organic-Inorganic Perovskites by Ultrafast Terahertz Probes.

ACS Nano

January 2025

School of Information Science and Technology and Department of Optical Science and Engineering and Key Laboratory of Micro and Nano Photonic Structures (MOE), Fudan University, Shanghai 200433, China.

The formation of large polarons resulting from the Fröhlich coupling of photogenerated carriers with the polarized crystal lattice is considered crucial in shaping the outstanding optoelectronic properties in hybrid organic-inorganic perovskite crystals. Until now, the initial polaron dynamics after photoexcitation have remained elusive in the hybrid perovskite system. Here, based on the terahertz time-domain spectroscopy and optical-pump terahertz probe, we access the nature of interplay between photoexcited unbound charge carriers and optical phonons in MAPbBr within the initial 5 ps after excitation and have demonstrated the simultaneous existence of both electron- and hole-polarons, together with the photogenerated carrier dynamic process.

View Article and Find Full Text PDF

Metal halide perovskites (MHPs) have emerged as the most promising materials due to superior optoelectronic properties and great applications spanning from photovoltaics to photonics. Absorption spectroscopy provides a broad and deep insight into the carrier dynamics of MHPs, and is a critical complement to fluorescence and scattering spectroscopy. However, absorption spectroscopy is often misunderstood or underestimated, being seen as UV-vis spectroscopy only, which can lead to various misinterpretations.

View Article and Find Full Text PDF

This study focuses on two types of phosphonium cation-based ionic liquids (P-ILs) with different alkyl chains: triethylalkylphosphonium (P222R) and tributylalkylphosphonium (P444R) cations. Broadband dielectric spectroscopy showed that the translational motion of the ions accelerated with an increasing number of alkyl chains by coupling with their rotational motion in both P-ILs. Raman spectroscopy revealed that P222R cations, despite dielectric similarities to P444R cations, can form all-trans conformations and cation-rich nanodomains because they have a relatively polar, short alkyl chain moiety with a central P atom and less-polar alkyl chains than those of P444R cations.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!