Article
Spectroscopy
Hui Chen, Chao Tan, Zan Lin
Summary: This study explored the feasibility of using near-infrared spectroscopy combined with ensemble learning to discriminate the origin of Ginseng. The final models showed high sensitivity, specificity, and overall accuracy.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Multidisciplinary Sciences
Daniel L. D. Freitas, Ana F. S. Peres, Lidiane G. Silva, Joao V. M. Mariz, Marcos G. Santos, Rayanne S. P. Morais, Camilo L. M. Morais, Francis L. Martin, Daniel A. Pascoal, Juliana D. de A. S. Camargo, Janaina C. O. Crispim, Kassio M. G. Lima
Summary: The prevention of mother-to-child transmission programs in Brazil have seen success, as access to antiretroviral therapy during pregnancy has led to a reduction in new infections among children. By utilizing near-infrared spectroscopy, pregnant women with and without HIV infection can be quickly and accurately differentiated, offering a new perspective on investigating vertical transmission and providing a potential low-cost screening tool for fast HIV detection.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
Ahyeong Lee, Ghiseok Kim, Seong-Wan Kim, Giyoung Kim
Summary: A discrimination model was developed for distinguishing between normal and dead cocoons based on near-infrared transmission spectra, with a high accuracy rate. Pre-processing methods and principal component analysis were key factors in the success of the discrimination model.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Food Science & Technology
Sarah Curro, Luca Fasolato, Lorenzo Serva, Luciano Boffo, Jacopo Carlo Ferlito, Enrico Novelli, Stefania Balzan
Summary: Seafood, especially cephalopods, is susceptible to fraudulent activities. Near-infrared spectroscopy can effectively discriminate between different physical states of cuttlefish. The classification models performed best in distinguishing between fresh and frozen-thawed products, showing high performance in classifying bleaching treatments when fresh samples were excluded.
Article
Food Science & Technology
Ya-Qin Wang, Guang-Min Liu, Li-Ping Hu, Xue-Zhi Zhao, De-Shuang Zhang, Hong-Ju He
Summary: Purple Chinese cabbage (PCC) is a popular breeding trend due to its attractive color and high nutritional quality enriched with anthocyanidins. This study established a rapid quantitative detection method for anthocyanidins in PCC using Near Infrared Spectroscopy (NIR), which combined spectral data and chemometric results to predict anthocyanidins content. The developed NIR prediction models showed excellent performance, and this time-saving and convenient method can be applied in purple vegetable breeding practice.
Article
Instruments & Instrumentation
Chao Tan, Hui Chen, Zan Lin
Summary: This study investigates the feasibility of using near-infrared (NIR) spectroscopy and chemometrics to discriminate normal and osteonecrosis tissues. A dataset of 128 samples is used for the experiment, and principal component analysis (PCA) is employed for exploratory analysis. An ensemble-based extreme learning machines modeling method (EELM) combined with relief-based feature selection algorithm is proposed to construct the diagnostic model. The results show that the EELM achieves a total accuracy of 95.2% on the independent test sets, while the corresponding partial least squares-discriminant analysis (PLS-DA) only achieves 78.5% accuracy, indicating the potential of NIR spectroscopy combined with the EELM algorithm for discriminating ONFH tissues from normal ones.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Review
Food Science & Technology
Li Huang, Chao Ren, Hui-Jing Li, Yan-Chao Wu
Summary: Chinese red ginseng, American red ginseng, and Korean red ginseng exhibit good bioactivities due to rich rare ginsenosides, but they have obvious distinctions in chemical composition and content, which lead to differences in various applications.
FOOD AND BIOPROCESS TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yasuhiro Kato, Jelena Muncan, Roumiana Tsenkova, Dusan Kojic, Masato Yasui, Jing-Yu Fan, Jing-Yan Han
Summary: This study demonstrated the successful discrimination of different water samples using near-infrared spectroscopy and aquaphotomics, revealing dynamic changes in water samples at different temperatures. Temperature perturbation could reveal subtle changes in water samples, such as aging and the loss of certain qualities during storage.
APPLIED SCIENCES-BASEL
(2021)
Article
Plant Sciences
Eunsoo Park, Yun-Soo Kim, Mohammad Akbar Faqeerzada, Moon S. Kim, Insuck Baek, Byoung-Kwan Cho
Summary: In this study, a non-destructive method for early detection of root rot in ginseng was developed using crop phenotyping and HSI technique to analyze biochemical information. The results showed that root rot caused a decrease in nutrient absorption, photosynthetic activity, and levels of carotenoids, starch, and sucrose. This technique can be used for early and non-destructive detection of root rot in ginseng.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Sitong Liu, Xinfeng Wang, Ning Ding, Yutong Liu, Ning Li, Yiqiao Ma, Jing Zhao, Zhenhui Wang, Xiaomeng Li, Xueqi Fu, Linfeng Li
Summary: Plants have the ability to regenerate from various types of cells, but somatic cell totipotency can be compromised by somaclonal variation, particularly karyotype alteration, during tissue culture. Chinese ginseng exhibits little decline in totipotency and remarkable chromosomal stability even after prolonged tissue cultures. However, it is uncertain whether chromosomal stability at the molecular level necessarily correlates with genetic stability at the nucleotide sequence level.
Article
Biochemistry & Molecular Biology
Soo-In Sohn, Subramani Pandian, Young-Ju Oh, John-Lewis Zinia Zaukuu, Yong-Ho Lee, Eun-Kyoung Shin
Summary: This study successfully differentiated four B. juncea varieties using visible near-infrared spectroscopy combined with multiple chemometric approaches, with the combination of standard normal variate and deep learning achieving the highest classification accuracy of 100%. Other chemometric methods such as support vector machine, generalized linear model, and random forest also achieved 100% classification accuracy.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Spectroscopy
Rui Li, Yan Liu, Zhenzhen Xia, Qiao Wang, Xin Liu, Zhiyong Gong
Summary: NIRS combined with chemometric methods was used for geographical discrimination of water caltrop shells and quantitative analysis of total phenolic content (TPC) and total flavonoid content (TFC). The results showed the feasibility of this method for accurate discrimination of water caltrop shells from different regions, and for quantitative analysis of TPC and TFC.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Multidisciplinary Sciences
Zhuoran Ma, Feifei Wang, Weizhi Wang, Yeteng Zhong, Hongjie Dai
Summary: This study utilized artificial neural networks to transform fluorescence images in the shorter-wavelength NIR window to images resembling NIR-IIb window, achieving high signal-to-background ratio in vivo lymph node imaging with human-approved molecular probes. Translation of PD-L1 or EGFR imaging greatly enhanced tumor-to-normal tissue ratio and improved tumor margin localization, showcasing the potential of deep learning in enhancing noninvasive NIR imaging and microscopy. Deep learning equipped NIR imaging could facilitate basic biomedical research and clinical diagnostics and imaging-guided surgery.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Spectroscopy
Xuefen Sun, Huiling Li, Yuan Yi, Haimin Hua, Ying Guan, Chao Chen
Summary: This study successfully explored the feasibility of detecting and quantifying cheap adulterants in Chinese functional food using NIR spectroscopy and chemometrics methods. Discriminative and quantitative models were established to distinguish and determine the content of adulterants, with model quality evaluated through various validation methods. The results indicated the robustness and applicability of the method for rapid detection of adulteration in herbal plants or functional foods.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Genetics & Heredity
Sitong Liu, Jing Zhao, Yutong Liu, Ning Li, Zhenhui Wang, Xinfeng Wang, Xiaodong Liu, Lili Jiang, Bao Liu, Xueqi Fu, Xiaomeng Li, Linfeng Li
Summary: Chinese ginseng is a highly valued traditional Chinese medicine with long-term cultured callus cells showing high chromosomal stability and virtually immortalized totipotency. These unique features may be related to the robust homeostasis of transcriptional expression of specific genes implicated in tissue totipotency and chromosomal stability. Further exploration of the molecular mechanisms underlying these properties may provide novel insights into the mechanistic understanding of somatic chromosomal stability and occurrence of CIN in human disease.
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)