Article
Biochemistry & Molecular Biology
Gongji Wang, Hao Wu, Canyu Yang, Zefeng Li, Run Chen, Xinggong Liang, Kai Yu, Huiyu Li, Chen Shen, Ruina Liu, Xin Wei, Qinru Sun, Kai Zhang, Zhenyuan Wang
Summary: The study utilized spectroscopy and chemometrics to establish a fast identification model for muscle trauma, effectively distinguishing trauma in rat and human muscle tissues. Through partial least squares discriminant analysis, high classification accuracies were achieved, demonstrating the feasibility and effectiveness of the method.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
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
Multidisciplinary Sciences
Helina Heino, Lassi Rieppo, Tuija Mannisto, Mikko J. Sillanpaa, Vesa Mantynen, Simo Saarakkala
Summary: ATR-FTIR spectroscopy coupled with machine learning-based PLS-DA was used to study the detection of SARS-CoV-2 from nasopharyngeal swab samples. The results indicate that the ATR-FTIR spectrum contains specific information for SARS-CoV-2 infection, but the diagnostic performance is moderate.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Lei Wang, Guangyuan Xie, Hanchang Hu, Qiuyu Zhu, Jing Zhou, Zhicheng Yu
Summary: This study developed a urea-free dye fixation process to improve the dye fixation of reactive dyes in inkjet printing and reduce the environmental impact. The effects of moisture content and 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC) concentration on inkjet printing performance were investigated. The results indicated that increasing the moisture content of cotton fabric promoted the diffusion and fixation of reactive dyes, and the urea-free process achieved good dye fixation and decreased environmental impact.
Article
Engineering, Environmental
Binessi Edouard Ifon, Claude Kiki, Kayode Hassan Lasisi, Fidele Suanon, Bob Adyari, Valentin Wotto, Chang-Ping Yu, Anyi Hu
Summary: The study found that xenobiotic compounds have significant impacts on the compositional variation of dissolved organic matter (DOM) in aquatic environments, especially in anthropogenically-impacted water bodies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
K. L. Andrew Chan, Anton S. Shalygin, Oleg N. Martyanov, Tom Welton, Sergei G. Kazarian
Summary: High throughput macro ATR-FTIR spectroscopic imaging was used for in situ characterization of 14 ionic liquids under controlled environments. The study found that the structure of the cation and anion in the ionic liquids significantly influenced the absorption of toluene and water, providing valuable insights for the application of ionic liquids.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Multidisciplinary Sciences
Vanessa Schorer, Julian Haas, Robert Stach, Vjekoslav Kokoric, Ruediger Gross, Jan Muench, Tim Hummel, Harald Sobek, Jan Mennig, Boris Mizaikoff
Summary: This study develops a direct face mask sampling method to monitor water, proteins, and virus samples in medical masks. Using infrared spectroscopy, exposure scenarios can be rapidly and non-destructively monitored, providing a potential solution for large-scale monitoring.
SCIENTIFIC REPORTS
(2022)
Article
Agronomy
Evgeniya A. Karpukhina, Dmitry S. Volkov, Mikhail A. Proskurnin
Summary: The existing techniques for lignosulfonate in humate fertilizers lack selectivity and require labor- and time-consuming sample preparation. This study developed a procedure based on ATR FTIR spectroscopy with simple sample preparation for directly quantifying lignosulfonates in aqueous solutions. The technique shows potential for analyzing fertilizers of simple composition and quality control of pure humates used for plant growth.
Article
Environmental Sciences
Jiaqi Liu, Fengmei Zhang, Shengping Dou, Mengyao Zhu, Lei Ding, Yanli Yang
Summary: Understanding the adsorption reactions between serine and minerals is crucial for comprehending the geochemical processes of amino acids in the environment. ATR-FTIR flow-cell measurements were used to differentiate the inner-and outer-sphere complexation and reveal the dynamic adsorption and desorption processes. DFT calculations determined the structures of surface complexes and peak assignments of serine dissolved in solution and adsorbed on TiO2.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
Multidisciplinary Sciences
H. Lee, D. Lee, J. M. Seo
Summary: This study collected and analyzed paint from an actual site of ship collision, comparing paint traces of the damaged ship and the ship suspected to be responsible for the collision through various chemical analysis methods. The ship responsible for the collision could be identified by performing a comparative analysis of the extracted paint.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Rosario Javier-Astete, Jessenia Melo, Jorge Jimenez-Davalos, Gaston Zolla
Summary: This study validated a model for the classification of wood species and a universal model for the rapid determination of cellulose, hemicellulose, and lignin using FTIR spectroscopy coupled with chemometrics. The results showed that the full spectra can be used to differentiate different species and identify infrared peaks associated with cellulose, hemicellulose, and lignin. In addition, the full spectra helped build a three species universal model for quantifying the principal wood chemical components. Therefore, the study demonstrated that FTIR-ATR, together with chemometrics, is a reliable method for discriminating wood species and determining wood chemical composition.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Ceramics
Jonas Kalkreuth, Angela Ullrich, Krassimir Garbev, Daniela Merz, Peter Stemmermann, Dieter Stapf
Summary: In the context of carbon capture and storage in the cement and concrete industry, there is a strong demand for fast, reliable, and low-cost CO2 quantification methods. This study applied attenuated total reflection infrared spectroscopy (ATR-IR) with partial-least-squares regression for the quantification of CaCO3 in carbonated hardened Portland cement pastes, showing great potential in process control. Thermogravimetric analysis coupled with infrared spectrometry was used as a reference for quantification.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Polymer Science
Prangtip Uthaiwat, Aroonsri Priprem, Ploenthip Puthongking, Jureerut Daduang, Chatchanok Nukulkit, Sirinart Chio-Srichan, Patcharee Boonsiri, Suthasinee Thapphasaraphong
Summary: The combination of chitosan or polyvinyl pyrrolidone with hydroxypropyl methylcellulose and poloxamer 407 as gelling agents for oral drug delivery showed improved mucoadhesive properties through enhanced interaction with mucin, as evidenced by ATR-FTIR spectroscopy. The results suggest that the molecular interaction between the gels and mucin/mucosa, involving electrostatic interactions and hydrogen bonding, may contribute to the improved mucoadhesive effect.
Article
Polymer Science
Ladislav Dzurenda, Michal Dudiak, Eva Vybohova
Summary: Steaming of maple wood enhances color stability and reduces the impact of UV radiation on the wood surface. The darker and browner the color of the steamed maple wood, the less it changes under UV radiation.
Article
Geochemistry & Geophysics
Marco Viccaro, Donatella Barca, Wendy A. Bohrson, Claudia D'Oriano, Marisa Giuffrida, Eugenio Nicotra, Bradley W. Pitcher
Article
Multidisciplinary Sciences
Kayla Iacovino, Kim Ju-Song, Thomas Sisson, Jacob Lowenstern, Ri Kuk-Hun, Jang Jong-Nam, Song Kun-Ho, Ham Song-Hwan, Clive Oppenheimer, James O. S. Hammond, Amy Donovan, Kosima W. Liu, Ryu Kum-Ran
Article
Geosciences, Multidisciplinary
B. P. Proctor, D. A. Lockner, J. B. Lowenstern, N. M. Beeler
GEOPHYSICAL RESEARCH LETTERS
(2017)
Article
Geosciences, Multidisciplinary
Bradley W. Pitcher, Adam J. R. Kent, Anita L. Grunder, Robert A. Duncan
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2017)
Article
Geochemistry & Geophysics
R. A. Zierenberg, P. Schiffman, G. H. Barfod, C. E. Lesher, N. E. Marks, J. B. Lowenstern, A. K. Mortensen, E. C. Pope, D. K. Bird, M. H. Reed, G. O. Frioleifsson, W. A. Elders
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
(2013)
Article
Geochemistry & Geophysics
Larry G. Mastin, Alexa R. Van Eaton, Jacob B. Lowenstern
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2014)
Article
Multidisciplinary Sciences
J. B. Lowenstern, W. C. Evans, D. Bergfeld, A. G. Hunt
Review
Geochemistry & Geophysics
Shaul Hurwitz, Jacob B. Lowenstern
REVIEWS OF GEOPHYSICS
(2014)
Article
Multidisciplinary Sciences
C. B. Till, A. J. R. Kent, G. A. Abers, H. A. Janiszewski, J. B. Gaherty, B. W. Pitcher
NATURE COMMUNICATIONS
(2019)
Article
Geochemistry & Geophysics
C. W. Wicks, D. Dzurisin, J. B. Lowenstern, J. Svarc
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2020)
Article
Geochemistry & Geophysics
Bradley W. Pitcher, Guilherme A. R. Gualda, Takeshi Hasegawa
Summary: Studies show that during the Early Pleistocene, there were multiple caldera-forming eruptions in the southernmost Kurile arc, with similar magma characteristics and manifestations between different eruptions, indicating repetitive magma assembly and storage processes in this region.
JOURNAL OF PETROLOGY
(2021)
Article
Geosciences, Multidisciplinary
Bradley W. Pitcher, Adam J. R. Kent, Anita L. Grunder
Summary: The study reveals an unusually frequent period of explosive eruptions in the well-preserved Deschutes Formation in central Oregon, USA, which represents North America's most recent arc-sourced ignimbrite flare-up. The eruption frequency during this period is more than a factor of ten greater than the Quaternary Cascades arc, suggesting a heightened flux of basalt focused beneath the arc, possibly induced by slab-rollback and minor crustal extension.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Jacob B. Lowenstern, John W. Ewert, Andrew B. Lockhart
Summary: Observatories play a key role as a bridge between decision-making authorities and monitoring data in the future. The global scientific community needs to collaborate to strengthen observatories, build databases and scientific models, and improve eruption forecasts and their mitigation. Observatories should contribute data to foster international collaborations.
BULLETIN OF VOLCANOLOGY
(2022)
Article
Geochemistry & Geophysics
Kenneth W. W. Sims, Cole M. Messa, Sean R. Scott, Andrew D. Parsekian, Andrew Miller, Abraham L. Role, Timothy P. Moloney, Everett L. Shock, Jacob B. Lowenstern, R. Blaine McCleskey, Matthew A. Charette, Bradley J. Carr, Sylvain Pasquet, Henry Heasler, Cheryl Jaworowoski, W. Steven Holbrook, Melody R. Lindsay, Daniel R. Colman, Eric S. Boyd
Summary: The process of phase separation in hydrothermal systems affects the chemistry and biology of hot springs, but our understanding of the subsurface architecture and timescales involved is limited. By studying adjacent hot springs in Yellowstone National Park, we provide a four-dimensional assessment of phase separation processes and their biological manifestation, revealing the causal links between subsurface geological processes, the development of geochemical fluids, and the assembly of thermophilic microbial communities.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)