Article
Plant Sciences
Somia Saad, Saida Ouafi, Hassina Meguellati, Nadjette Djemouai
Summary: The study analyzed the phytochemical composition of Marrubium deserti De Noe and evaluated the effects of various extracts on inflammation, pain response, and fever in animal models. Results showed that the plant exhibited anti-inflammatory, analgesic, and antipyretic activities.
JOURNAL OF ETHNOPHARMACOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Horyomba Siaka Ouandaogo, Souleymane Diallo, Eddy Odari, Johnson Kinyua
Summary: This study analyzed the chemical content of Ocimum kilimandscharicum leaf extracts and identified secondary metabolites through gas chromatography-mass spectrometry (GC-MS). The extracts were found to contain alkaloids, phenolics, flavonoids, saponins, and tannins. The study also revealed an inhibitory effect on gene expression of Staphylococcus aureus and Salmonella choleraesuius. These findings suggest potential biological and pharmacological significance of the chemicals in O. kilimandscharicum and justify further research in those areas.
Article
Food Science & Technology
Suzana C. Santos, Gilmara A. C. Fortes, Lilian T. F. M. Camargo, Ademir J. Camargo, Pedro H. Ferri
Summary: The study revealed that the activity of polyphenols is correlated with their chemical structure, and the relationship can be predicted by parameters such as polarisability, E-HOMO, and LogP. Experimental results indicated that polyphenols can be divided into four clusters, with increasing antioxidant capacity in each cluster.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Ariel C. de Oliveira, Paulo R. Souza, Bruno H. Vilsinski, Manuel E. G. Winkler, Marcos L. Bruschi, Eduardo Radovanovic, Edvani C. Muniz, Wilker Caetano, Artur J. M. Valente, Alessandro F. Martins
Summary: In this study, gelatin, amino-functionalized polyphenolic tannin derivative, and graphene oxide were combined to create thermo- and pH-responsive hydrogels for drug delivery applications. Addition of graphene oxide to gelatin/tannin blend improved mechanical properties and increased porosity. The incorporation of methylene blue as a model drug showed controlled release behavior in response to pH changes.
Article
Materials Science, Multidisciplinary
Ewerton de Oliveira T. Bezerra, Sharise B. R. Berton, Ariel C. de Oliveira, Paulo R. Souza, Camila F. Vecchi, Marcos L. Bruschi, Bruno H. Vilsinski, Alessandro F. Martins
Summary: The study utilized an amino-functionalized polyphenolic tannin derivative to stabilize gelatin chains and create physical assemblies, resulting in thermosensitive hydrogels with varying properties. The presence of tannin derivative affected the porosity of the material and exhibited antimicrobial activities against Escherichia coli, showing potential for biomedical applications such as wound dressings.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Veterinary Sciences
Spiridoula Athanasiadou, Marit Almvik, Jarkko Hellstrom, Eva Madland, Nebojsa Simic, Havard Steinshamn
Summary: The study showed that bark extracts from commercially used trees in Scandinavia have the potential to be used as alternatives to anthelmintics. The total condensed tannin content was higher in the bark from younger pine and spruce trees, decreased with tree age in pine, while remained relatively stable in spruce and birch bark. The anthelmintic activity of bark extracts varied and was influenced by the tree age and species.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Soumeia Zeghoud, Abdelkrim Rebiai, Hadia Hemmami, Bachir Ben Seghir, Noureddine Elboughdiri, Saad Ghareba, Djamel Ghernaout, Nadir Abbas
Summary: This study successfully constructed a model to discriminate between different sources of pollen samples using analytical methods such as ATR-FTIR and HPLC along with chemometrics analysis. The data obtained from both ATR-FTIR and HPLC showed consistent discriminatory patterns, dividing the samples into four main classes based on their total polyphenol content.
Article
Agriculture, Dairy & Animal Science
Ruggero Menci, Mauro Coppa, Angelique Torrent, Antonio Natalello, Bernardo Valenti, Giuseppe Luciano, Alessandro Priolo, Vincent Niderkorn
Summary: The study found that tannin extracts have different effects in different feeding situations, impacting rumen fermentation parameters, and are more effective when associated with hay.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Article
Infectious Diseases
Tamara Manso, Marta Lores, Trinidad de Miguel
Summary: Antibiotic resistance is a significant global issue that requires the search for new antimicrobial agents. Polyphenols derived from plant extracts exhibit potent antibacterial and antifungal activities, and they show a synergistic effect when combined with antibiotics and antifungals.
Article
Biochemistry & Molecular Biology
Jessica Borges-Vilches, Irem Unalan, Claudio R. Aguayo, Katherina Fernandez, Aldo R. Boccaccini
Summary: Chitosan-based scaffolds loaded with Pinus radiata extract bark and grape seed extract were developed for wound dressing applications. The inclusion of these extracts improved the blood absorption ability, degradation rates, antibacterial activity, and cell viability of the scaffolds, making them suitable for wound dressing applications.
Article
Biochemistry & Molecular Biology
Luigi Castaldo, Luana Izzo, Sonia Lombardi, Anna Gaspari, Stefania De Pascale, Michela Grosso, Alberto Ritieni
Summary: The study found that water-based extracts from broad bean hulls contain various polyphenolic compounds, with p-coumaric acid, chlorogenic acid, and epicatechin being the most common. Encapsulating the extracts into capsules helps preserve the active compounds, resulting in higher antioxidant capacity and polyphenol bioaccessibility during the gastrointestinal process.
Article
Spectroscopy
Youhong Luo, Hui Liu, Chunye Wu, Maria Paraskevaidi, Yujie Deng, Wenjie Shi, Ye Yuan, Ruifa Feng, Francis L. Martin, Weiyi Pang
Summary: This study successfully differentiated and classified molecular subtypes of breast tumors using ATR-FTIR spectroscopy and multivariate analysis. Analysis of the unique spectral fingerprints of the biochemical composition revealed significant differences in the biochemical structures between normal breast tissues and different molecular subtypes of breast cancer. The identified characteristic peak ratios of infrared spectra can serve as potential biomarkers for predicting the molecular subtype of breast tumors.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Food Science & Technology
Silvia Del Bianco, Antonio Natalello, Giuseppe Luciano, Bernardo Valenti, Luca Campidonico, Vasiliki Gkarane, Frank Monahan, Luisa Biondi, Saida Favotto, Angela Sepulcri, Edi Piasentier
Summary: Tannins have the ability to form complexes with proteins, limiting their degradation and thus inhibiting the synthesis of certain odour-active compounds. Different types of tannins can influence the volatile profile and flavour of meat, with tannin extracts reducing pastoral odour in lamb meat.
Article
Plant Sciences
Liliana Costea, Carmen Lidia Chitescu, Rica Boscencu, Manuela Ghica, Dumitru Lupuliasa, Dragos Paul Mihai, Teodora Deculescu-Ionita, Ligia Elena Dutu, Maria Lidia Popescu, Emanuela-Alice Luta, George Mihai Nitulescu, Octavian Tudorel Olaru, Cerasela Elena Gird
Summary: Oxidative stress is a major factor in human functional disorders, and this study aimed to obtain standardized plant extracts containing active compounds that protect liver cells against free radicals. The extracts were analyzed to identify and quantify therapeutic compounds using UHPLC-HRMS/MS. The extracts contained various flavonoids, phenolic acids, and polyphenols. In vitro experiments confirmed the extracts' antioxidant activity, and a correlation was found between the content of polyphenolic compounds and the antioxidant effect. The extracts also showed hepatoprotective potential in silico. This study validates the use of these extracts in phytotherapy due to their ability to reduce oxidative stress and protect liver cells.
Article
Food Science & Technology
Cristian Torres-Leon, Barbara de Azevedo Ramos, T. Maria dos Santos Correia, G. Maria Carneiro-da-Cunha, Nathiely Ramirez-Guzman, C. Luiz Alves, A. Fabio Brayner, Juan Ascacio-Valdes, B. Olga Alvarez-Perez, N. Cristobal Aguilar
Summary: This study investigated the antioxidant and anti-Staphylococcus aureus activity of mango seed extracts obtained through different extraction methods. The extracts showed potent antioxidant and antibacterial properties, suggesting their potential use as natural agents. HPLC-MS analysis revealed the presence of multiple polyphenolic compounds in the extracts.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Spectroscopy
Daiane Heidrich, Alessandra Koehler, Mauricio Ramirez-Castrillon, Danielle Machado Pagani, Marco Flores Ferrao, Maria Lucia Scroferneker, Valeriano Antonio Corbellini
Summary: This study aimed to differentiate CBM agents at the genus level using FTIR supervised by ITS rDNA region. The ATR-FTIR/OPLS-DA models successfully classified all samples of five CBM genera based on important contributions of specific regions in the spectra. FTIR shows potential as a fast and inexpensive alternative for CBM agent identification.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Review
Chemistry, Analytical
Roberta Petry Gorziza, Marina Gonzalez, Carina Maria Bello de Carvalho, Rafael Scorsatto Ortiz, Arco Flores Ferrao, Renata Pereira Limberger
Summary: Questioned documents involve analysis of various issues, such as identity theft, forged signatures or texts, documents alterations, and falsification of security documents or banknotes. Chemical analysis is required for questions concerning inks or paper, and multivariate analysis has emerged as an important tool for data evaluation. This study aimed to identify previous articles that applied multivariate analysis in the field of questioned documents for forensic purposes. Sixty studies published in the last ten years were selected. These studies covered various aspects, including pen inks analysis, printed documents studies, paper analysis, and banknotes analysis. Different analytical methods, such as spectroscopy, mass spectrometry, chromatography, and multivariate image analysis, were used to collect chemical data. The application of chemometrics methods, including unsupervised pattern recognition techniques, regression methods, and supervised pattern recognition techniques, was also discussed.
BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Fernanda C. Bock, Gilson A. Helfer, Adilson B. da Costa, Morgana B. Dessuy, Marco F. Ferrao
Summary: The study utilized smartphone analysis to quantify copper levels in sugarcane spirit samples, optimizing experimental design and image acquisition procedures for improved accuracy. The proposed method offers advantages of portability, low cost, and reduced reagent consumption compared to traditional techniques.
Article
Energy & Fuels
Thais Livramento Silva, Juciana Clarice Cazarolli, Tania Mara Pizzolato, Ana Paula Guedes Frazzon, Michele Bertoni Mann, Jeverson Frazzon, Danielle Kochenborger John, Marco Flores Ferrao, Pabulo Henrique Rampelotto, Emmanuel Bezerra D'Alessandro, Nelson Roberto Antoniosi Filho, Fatima Menezes Bento
Summary: This study evaluated the impact of adding biodiesel to marine diesel oil, finding that adding 20% biodiesel had a greater impact on microbial growth and oil phase composition.
Article
Engineering, Biomedical
Anderson Ramos Carvalho, Luana Candice Genz Bazana, Alexandre Meneghello Fuentefria, Marco Flores Ferrao
Summary: This study proposes a method for determining pH without contact with the sample using digital images and regression analysis, which is validated by comparative calibration. The results demonstrate that digital images are a good alternative for determining the pH of RPMI 1640 medium, offering convenience, speed, and cost-effectiveness, and producing results similar to a pH meter.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2022)
Article
Microbiology
A. R. Carvalho, L. C. G. Bazana, A. A. Gomes, M. F. Ferrao, A. M. Fuentefria
Summary: Microorganisms adapt to the environment and fungi's adaptive capacity allows them to cause diseases in humans. This study used digital images as response and compared two experimental approaches to examine the influence of various factors on Candida strains. The results showed that pH modification affects the susceptibility of some species. Additionally, digital images were used for the first time as input to obtain information about Candida susceptibility.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Lisandro von Muhlen, Osmar D. Prestes, Marco F. Ferrao, Carla Sirtori
Summary: The analysis of chemical oxygen demand (COD) is important for measuring water pollution, but it often has high ecological costs. With advances in image acquisition and processing techniques, mobile devices can now be used for COD analysis. The PhotoMetrix PRO application was used for image acquisition and multivariate analysis, and the results showed no significant difference compared to the standard method. The miniaturized method reduced costs, waste generation, and analysis time, and it was successfully used for analyzing different matrices and evaluating advanced oxidation processes. The miniaturized PhotoMetrix PRO method is a suitable option for COD analysis, as it reduces the use of chemicals and waste generation, making it less hazardous to the environment.
Article
Chemistry, Analytical
Carlos H. H. Junges, Celito C. C. Guerra, Natalia A. P. Canedo-Reis, Adriano A. A. Gomes, Marco F. F. Ferrao
Summary: In this study, a new approach using unfolded excitation-emission matrix (EEM) fluorescence spectroscopy and chemometrics was developed to classify grape juices produced in Brazil based on conventional or organic agricultural production systems. Linear discriminant analysis (LDA) coupled to ant colony optimisation (ACO) and the genetic algorithm (GA) were used to select a more effective subset of variables for discrimination. The proposed method showed highly efficient classification of grape juice samples with up to 97% accuracy for the models and 94% accuracy for external samples, demonstrating its viability for quality control in the food industry.
ANALYTICAL METHODS
(2023)
Review
Medicine, Legal
Danielle Kochenborger John, Klester dos Santos Souza, Marco Flores Ferrao
Summary: The use of non-destructive forensic methods for cocaine identification is crucial due to the large number of seized samples. Spectroscopic techniques such as ATR-FTIR, Raman, and NIR spectroscopy offer fast and cost-effective analysis, along with the reanalysis of samples. When combined with chemometrics, these methods allow for accurate determination and quantification of cocaine, overcoming the limitations of existing techniques. This review article comprehensively discusses the application of spectroscopic techniques in identifying cocaine in various forms and matrices, including food and textiles used for smuggling. It also explores the chemometric identification of cocaine in oral fluid and water, as well as the use of portable equipment for vibrational spectroscopy. The article aims to evaluate the main chemometric applications of spectroscopic data and provide new perspectives on cocaine identification using chemometrics.
FORENSIC SCIENCE INTERNATIONAL
(2023)
Article
Chemistry, Applied
Carlos H. Junges, Celito C. Guerra, Natalia A. P. C. Reis, Adriano A. Gomes, Fernando S. Diogo, Marco F. Ferrao
Summary: In this study, visible spectra combined with chemometric methods were used to differentiate Brazilian grape juices by conventional and organic production systems. A new pH modulation approach was employed to build a more accurate classification model. Visible spectroscopy proved to be a simple, fast, and low-cost method for evaluating the quality of grape juice.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Neurosciences
Natalia Alejandra Pisoni Canedo-Reis, Flavia Suelen de Oliveira Pereira, Daiana Silva Avila, Celito Crivellaro Guerra, Leticia Flores da Silva, Carlos Henrique Junges, Marco Flores Ferrao, Ana Maria Bergold
Summary: This study found that multiple grape juices can improve symptoms and extend lifespan in an Alzheimer's disease model. The rich constitution of grape juices is responsible for attenuating the phenotype caused by A beta aggregation.
NUTRITIONAL NEUROSCIENCE
(2023)
Review
Medicine, Legal
Kristiane de Cassia Mariotti, Rafael Scorsatto Ortiz, Marco Flores Ferrao
Summary: Analysis of evidence is a complex task in forensic science due to the complex and diverse nature of crime scene materials. Hyperspectral imaging (HSI) has emerged as a valuable analytical tool for maintaining sample integrity and conducting sequential analysis. This paper provides an overview of the application of HSI techniques in forensic science, focusing on document examination, bloodstain analysis, trace analysis of explosives, gunshot residue, and the importance of chemometric tools in obtaining crucial information from the samples. Despite the challenges, there have been significant technological and scientific advancements, establishing a solid foundation for the use of HSI in real-life forensic cases.
Article
Chemistry, Analytical
Ellisson H. de Paulo, Marcia H-C. Nascimento, Pedro H. -P. da Cunha, Lucas L. Pereira, Emanuele C. da S. Oliveira, Paulo R. Filgueiras, Marco F. Ferrao
Summary: The determination of sensory attributes of coffee samples through trained cupping tasters is important for coffee quality control, but may be distorted due to different interpretations of quality from tasters' perspectives. Hydrogen nuclear magnetic resonance (1H NMR) can predict sensory attributes using chemometric methods. Variable selection by Ordered predictors selection (OPS) improves the prediction of regression models. In this study, OPS-PLS model was the best strategy to predict aftertaste, balance, and fragrance, while OPS-SVR predominated in predicting acidity, body, and flavor.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Danielle Kochenborger John, Rafael Dutra Soares, Patricia dos Santos Correa, Klester dos Santos Souza, Marco Flores Ferrao
Summary: ATR-FTIR spectroscopy and DD-SIMCA were used to identify ecstasy and its adulterants, demonstrating their effectiveness in drug classification and analysis.
FORENSIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Carlos H. Junges, Celito C. Guerra, Adriano A. Gomes, Marco F. Ferrao
Summary: We explored a methodology using mid-infrared spectral data and chemometric procedures to differentiate organic from conventional grape juice. The models built using genetic algorithm, stepwise regression algorithm, ant colony optimization algorithm, and successive projection algorithm showed excellent performance in distinguishing organic and conventional grape juice.
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)
