Article
Environmental Sciences
Yu Xing, Jing Li, Jingjing Yang, Junyi Li, Weiyi Pang, Francis L. Martin, Li Xu
Summary: This study used spectrochemical techniques to investigate the cytotoxicity of nanoplastics with different surface charges in HepG2 cells. The results showed that all three types of nanoplastics caused biomolecular alterations in cells, affecting cellular lipids, proteins, amino acids, and genetic material. Surface modifications were found to lead to cellular biochemical changes and adverse biological effects, with PS-NH2 exhibiting higher toxicity compared to PS or PS-COOH.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Physical
Nirmala Rani, Kanika Khurana, Neena Jaggi
Summary: CNTs based nanocomposites are highly promising materials in various fields due to their excellent properties. This research focused on spectroscopic study of FMWCNTs nanocomposites with different wt% of SnO2 NPs, confirming structural defects through XRD and Raman spectroscopy, chemical composition through XPS, and morphology through FESEM and TEM analysis. FTIR spectroscopy was used to validate the presence of different functional groups on the FMWCNTs and SnO2/FMWCNTs nanocomposites.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Stanislav Rizevsky, Mikhail Matveyenka, Dmitry Kurouski
Summary: Lipids can modify the structure of amyloid-associated proteins and affect their rates of aggregation. Atomic force microscopy infrared spectroscopy was used to study the structure of insulin oligomers and observed strong interactions between lipids and proteins during the oligomer formation.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Environmental Sciences
Saurabh Prajapati, Michael Beal, Jason Maley, Markus Brinkmann
Summary: In this study, microplastic and microfiber contamination in the effluents of a wastewater treatment plant in Saskatoon, Canada was qualitatively and quantitatively characterized. Fibers accounted for the majority of synthetic microparticles, with stable concentrations across seasons. Despite relatively low concentrations per liter of effluent, the large daily discharge volume results in significant emissions of particles into the river. Environmental implications of these findings require further investigation, but they represent an important initial step in understanding microplastic contamination in the Canadian Prairies.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Analytical
Laura Kronlachner, Johannes Frank, Erwin Rosenberg, Andreas Limbeck
Summary: Polymeric composite materials are increasingly important due to their versatility and adaptability. Current analysis methods cannot provide the necessary information on both organic and elemental constituents. This study presents a novel approach using laser ablation and concurrent measurements with EI-MS and ICP-OES to directly characterize the main components of solid polymer samples.
ANALYTICA CHIMICA ACTA
(2023)
Review
Chemistry, Analytical
Mohamed O. Amin, Entesar Al-Hetlani, Igor K. Lednev
Summary: Fingermark analysis is a key tool in criminal investigation, and the biochemical composition of FMs has attracted considerable attention as a vital source of forensic evidence. Vibrational spectroscopy is used to better understand the chemistry of latent FMs and improve detection methods. The article critically reviews the advances in FM analysis using vibrational spectroscopic techniques over the past 10 years, highlighting current limitations and discussing ways to overcome them to support the development of FM analysis techniques meeting modern forensic science requirements.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Ahmed A. Elsayed, Mazen Erfan, Yasser M. Sabry, Rachid Dris, Johnny Gasperi, Jean-Sebastien Barbier, Frederic Marty, Fatima Bouanis, Shaobo Luo, Binh T. T. Nguyen, Ai-Qun Liu, Bruno Tassin, Tarik Bourouina
Summary: A micro-optofluidic platform is proposed for fast quantification of microplastic particles in drinking water, utilizing micro-reservoirs and filters for quick imaging and spectroscopy. Passive size sorting and flow cytometry are used to further analyze and differentiate the particles based on size and chemical nature. Validation using model samples demonstrates the feasibility of this platform for microplastic detection.
SCIENTIFIC REPORTS
(2021)
Article
Food Science & Technology
Ana Borba, Andrea Gomez-Zavaglia
Summary: Infrared spectroscopy is a powerful yet underutilized technique in the field of Food Science and Technology. This review highlights the available approaches for analyzing the physical and chemical properties of food products and ingredients using infrared spectroscopy, including macromolecules and changes resulting from processing and storage. The use of infrared spectroscopy should be encouraged for rapid and accurate determinations in both academic and industrial contexts.
CURRENT OPINION IN FOOD SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Qiuqi Zhang, Lei Zhao, Guoliang Qi, Xiaoru Zhang, Cheng Tian
Summary: The coronavirus pandemic poses a significant threat to human health, and early detection and prevention of further escalation are of utmost importance. The current method of sample collection and RNA testing using the nasopharyngeal swab method and real-time polymerase chain reaction has limitations. Optical techniques, such as optical sensing, spectroscopy, and imaging, show promise in virus detection due to their speed, accuracy, and cost-effectiveness. This mini review summarizes the development of vibrational spectroscopy techniques for the detection of the SARS-CoV family, highlighting their advantages and future possibilities in the field of photonics-based devices for COVID-19 detection.
FRONTIERS IN CHEMISTRY
(2023)
Review
Chemistry, Physical
Matthias Weiling, Felix Pfeiffer, Masoud Baghernejad
Summary: This article reviews recent developments in vibrational spectroscopy techniques for studying interphases in lithium-ion batteries (LIBs). Interphases play a crucial role in defining the performance, cyclability, and safety of LIBs. The article introduces the vibrational spectroscopy techniques and their application in characterizing interphases, and summarizes the latest studies on the fundamental properties, composition, and structure of interphases using these techniques.
ADVANCED ENERGY MATERIALS
(2022)
Article
Environmental Sciences
Zijiang Yang, Murat Celik, Hisayuki Arakawa
Summary: This study investigates the feasibility of using the carbonyl index (CI) derived from Raman spectra as an indicator of plastic degradation and its relationship with the CI calculated from Fourier transform infrared (FTIR) spectra, using microplastic samples of polyethylene (PE) from surface seawater. While some significant relations between FTIR CI and Raman CI were observed, weak functional relationships due to low signal-to-noise ratio (SNR) of Raman spectra were indicated by small R2 values. These findings highlight the challenges of establishing a functional relationship between FTIR CI and Raman CI, including the uniformity of Raman spectra, optimal Raman measurement parameters, appropriate peaks for Raman CI calculation, spectral processing methods, and their interdependence.
MARINE POLLUTION BULLETIN
(2023)
Article
Spectroscopy
Yunxia Liu, Beilei Sun, Lucie Tajcmanova, Chao Liu, Jie Wu
Summary: This study collected fly ash samples from seven typical power plants in Shanxi province, China, to explore the effect of carbon residue structures on their burnout characteristic. The results showed that the structure of carbon residues in the fly ash has a significant impact on burnout characteristic, with more ordered structures in fly ash from circulating fluidized bed (CFB) power plants suppressing burnout and leading to an increase in loss on ignition (LOI) content, while less ordered structures in fly ash from pulverized coal boilers (PC) promoting burnout and resulting in a reduction of LOI content.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Spectroscopy
Alfredo Nicolas Dominguez, German Ezequiel Emmert, Diego Mauricio Gil, Rosa Maria Susana Alvarez
Summary: The vibrational study of the fungicide pyraclostrobin revealed insights into its molecular structure and behavior. The research identified a potential marker signal for the presence of pyraclostrobin in agricultural products.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Spectroscopy
Daniel Martin, Tercia Lopes, Sandra Correia, Jorge Canhoto, Maria Paula M. Marques, Luis A. E. Batista de Carvalho
Summary: This study presents the first complete vibrational analysis of tamarillo fruit, revealing the location and amount of important nutraceutical compounds. Different chemical components were found in different parts of the fruit, especially phenolic compounds, unsaturated fatty acids/esters, and polymeric chains. This valuable information provides insights into the nutritional value of tamarillo fruit.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Engineering, Multidisciplinary
Joanna Depciuch, Wojciech Czarny, Artur Plonka, Rafal Podgorski, Wojciech Bajorek, Bartosz Dziadek, Monika Kula-Maximenko, Malgorzata Sznajder, Wieslaw Paja, Yaroslav Shpotyuk, Jozef Cebulski, Pawel Krol
Summary: This study attempted to measure the stress level of professional volleyball players using FTIR and Raman spectroscopies for the first time. The results showed that the absorbance value of FTIR spectra at 1240 cm-1 and 2930 cm-1 wavenumbers had the best correlation with laboratory tests cortisol concentration. The proposed spectral analysis method had an error level of less than 25%.
Review
Chemistry, Analytical
Ioana Diaconu, Elena Ruse, Hassan Y. Aboul-Enein, Andrei A. Bunaciu
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2016)
Review
Chemistry, Analytical
Andrei A. Bunaciu, Serban Fleschin, Vu Dang Hoang, Hassan Y. Aboul-Enein
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2017)
Review
Chemistry, Analytical
Andrei A. Bunaciu, Vu Dang Hoang, Hassan Y. Aboul-Enein
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2017)
Review
Chemistry, Analytical
Sarfaraz Ahmed Mahesar, Saeed Ahmed Lakho, Syed Tufail Hussain Sherazi, Hamid Ali Kazi, Kamran Ahmed Abro, Razium Ali Soomro, Andrei A. Bunaciu
CURRENT ANALYTICAL CHEMISTRY
(2019)
Article
Biochemical Research Methods
Alexandrina Lungu-Moscalu, Catalina C. Negut, Cristina Stefanov, Raluca-Ioana S. van Staden, Andrei A. Bunaciu, Jacobus F. van Staden
COMBINATORIAL CHEMISTRY & HIGH THROUGHPUT SCREENING
(2020)
Review
Instruments & Instrumentation
Andrei A. Bunaciu, Hassan Y. Aboul-Enein
Summary: Infrared spectroscopy is increasingly used to characterize pharmaceutical products, both chemical substances and herbal, to monitor modifications and detect fraudulent changes. Reviewing relevant papers on the utilization of infrared spectroscopy in the analysis of adulterated drugs (chemical and herbal) products between 2015 and 2020 provides insight into its importance in the industry.
APPLIED SPECTROSCOPY REVIEWS
(2021)
Article
Chemistry, Analytical
Ioana Diaconu, Hassan Y. Aboul-Enein, Cristina Orbeci, Andrei A. Bunaciu, Ecaterina A. Serban, Elena Ruse
Summary: This study investigated the competitive transport of IAA and TRP through a liquid membrane system, achieving a transport efficiency of over 90% for IAA and high selectivity in transport between IAA and TRP. Operational parameters and pH influence were studied, with the procedure showing potential for sample preparation containing these analytes.
CURRENT ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Andrei A. Bunaciu, Serban Fleschin, Hassan Y. Aboul-Enein
Summary: The study focused on detecting and quantifying sunflower oil adulteration using ATR-FTIR spectroscopy, showing significant differences in characteristic bands for different edible oils. Results indicated that ATR-FTIR spectroscopy is a non-destructive and efficient technique for detecting sunflower oil adulteration with rapeseed oil.
Article
Pharmacology & Pharmacy
Andrei A. Bunaciu, Serban Fleschin, Hassan Y. Aboul-Enein
Summary: A new method for quantitatively detecting adulteration of extra virgin olive oil (EVOO) or corn germ oil (CGO) with a mineral oil, paraffin oil (PO), was developed using Fourier transform infrared spectrometric method and ATR spectra.
Article
Chemistry, Inorganic & Nuclear
Andrei Bita, Ion Romulus Scorei, Nagendra Rangavajla, Ludovic Everard Bejenaru, Gabriela Rau, Cornelia Bejenaru, Maria Viorica Ciocilteu, Laura Dinca, Johny Neamtu, Andrei Bunaciu, Otilia Constantina Rogoveanu, Mihai Ioan Pop, George Dan Mogosanu
Summary: Natural compounds of boron, particularly the diester chlorogenoborate complex, have potential applications as dietary supplements, prebiotics for gut and oral health, and essential micronutrients for human and animal microbiota.
Article
Chemistry, Analytical
Andrei A. Bunaciua, Hassan Y. Aboul-Eneinb
Summary: This review presents the most important papers related to the determination of COVID-19 in saliva using the Fourier transform infrared spectroscopy technique, aiming to accelerate the testing results.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Andrei A. Bunaciu, Hassan Y. Aboul-Enein
Summary: This article reviews the important applications of infrared spectroscopy in discriminating different types of honey and other products, as well as detecting fraudulent modifications. The study focuses on publications from 2015 to 2022.
CHEMISTRY-SWITZERLAND
(2022)
Article
Pharmacology & Pharmacy
Andrei Bunaciu, Serban Fleschin, Hassan Aboul-Enein
Summary: The recent developments in Fourier transform infrared (FTIR) spectroscopy instrumentation have extended its application to food research, particularly in the study of edible oils and fats. Attenuated total reflection-FTIR spectroscopy has been used to effectively monitor the oxidation process of lard samples, demonstrating its versatility in evaluating oxidative stability and providing information on oxidation degree in a simple, fast, and accurate manner. The decrease in intensity at specific bands indicates the loss of cis double bonds during oxidation, further confirming the oxidation process.
EGYPTIAN PHARMACEUTICAL JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Radu-Cristian Mutihac, Andrei A. Bunaciu, Hans-Juergen Buschmann, Lucia Mutihac
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Andrei A. Bunaciu, Oana Mihaela Antochi (Baltag), Serban Fleschin, Vu Dang Hoang, Hassan Y. Aboul-Enein
REVUE ROUMAINE DE CHIMIE
(2017)
