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
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
Chemistry, Medicinal
Joao F. S. Rodrigues, Liziane C. M. da Silva, Leia Cardoso-Sousa, Douglas Carvalho Caixeta, Debora D. Luckemeyer, Alisson S. Henrique, Jaqueline P. Pontes, Lycia M. G. da Silva, Juliana S. S. Macedo, Pedro S. Carvalho Junior, Cristiane Silva e Silva, Mahiba M. R. S. Martins, Valerio Monteiro-Neto, Marcos A. G. Grisotto, Anita M. R. Fernandes, Juliano Ferreira, Joao B. Calixto, Robinson Sabino-Silva, Elizabeth S. Fernandes
Summary: The study investigated the potential use of flow cytometry and ATR-FTIR spectroscopy as measures to identify responders to leflunomide in rheumatoid arthritis patients. The results indicate that both flow cytometry and ATR-FTIR can potentially be employed as additional measures to monitor early treatment response to leflunomide in RA patients, with the ability to differentiate responders from non-responders three months after therapy initiation.
Article
Polymer Science
Sandra Carreiras-Suarez, Lidia Dominguez-Ramos, Massimo Lazzari
Summary: The main purpose of this study is to understand the oxidation mechanism of polymeric components in disposable masks used during the COVID-19 pandemic. Artificial aging experiments showed that the components made of polypropylene (PP) underwent fast oxidation, exhibiting yellowing and decreased melting temperature as early indicators. Morphological changes also led to a loss of mechanical properties, resulting in embrittlement of the fabric fibers. Outdoor aging tests confirmed the findings, suggesting that masks will experience extensive oxidation and breakdown into microfiber fragments, i.e., microplastics, only under simultaneous exposure to sunlight and high environmental temperatures.
Article
Oncology
Shao-bin Chen, Di-tian Liu, Yu-ping Chen
Summary: Esophageal adenosquamous carcinoma (EASC) is a rare disease that is easily misdiagnosed. The prognosis of EASC is similar to that of esophageal squamous cell carcinoma (ESCC). Postoperative adjuvant chemotherapy may improve the survival of patients with EASC.
WORLD JOURNAL OF SURGICAL ONCOLOGY
(2022)
Article
Surgery
David Martinez-Cecilia, Dennis A. Wicherts, Federica Cipriani, Giammauro Berardi, Leonid Barkhatov, Panagiotis Lainas, Mathieu D'Hondt, Fernando Rotellar, Ibrahim Dagher, Luca Aldrighetti, Roberto I. Troisi, Bjorn Edwin, Mohammad Abu Hilal
Summary: This study found that a resection margin width less than 1 mm does not significantly impact OS after laparoscopic resection of CRLMs, but continues to affect RFS. Wider margins than 1 mm do not seem to improve oncological results in open or laparoscopic surgery.
SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES
(2021)
Review
Biochemistry & Molecular Biology
Yana Tkachenko, Przemyslaw Niedzielski
Summary: This study aims to collect and review articles related to mineral investigation using FTIR, addressing the issue of data deficiency in geochemistry. It also discusses various analytical techniques and tools for data pre-processing of IR spectra.
Article
Gastroenterology & Hepatology
Yujiro Nishioka, Natalia Paez-Arango, Federico Oppliger Boettcher, Yoshikuni Kawaguchi, Timothy E. Newhook, Yun Shin Chun, Ching-Wei D. Tzeng, Hop S. Tran Cao, Jeffrey E. Lee, Timothy J. Vreeland, Jean-Nicolas Vauthey
Summary: The study found that surgical margin status and somatic mutations have no significant impact on local recurrence and prognosis, which are likely driven more by individual tumor biology.
JOURNAL OF GASTROINTESTINAL SURGERY
(2022)
Article
Surgery
Miguel Nicolas, Matias Czerwonko, Victoria Ardiles, Rodrigo Sanchez Claria, Oscar Mazza, Eduardo de Santibanes, Juan Pekolj, Martin de Santibanes
Summary: This study compared the surgical margin, overall survival, and disease-free survival in patients with colorectal liver metastases (CRLM) who underwent oncological resections using different surgical approaches. The results showed no significant differences between laparoscopic and open surgeries in terms of surgical margin, overall survival rate, and disease-free survival rate.
LANGENBECKS ARCHIVES OF SURGERY
(2022)
Article
Chemistry, Multidisciplinary
Meltem Cetin, Fatma Demirkaya Miloglu, Nurcan Kilic Baygutalp, Onur Ceylan, Serkan Yildirim, Gizem Eser, Halise Inci Gul
Summary: The study found that the number of microplastics in tumoral colon tissues is higher than that in non-tumoral colon tissues or control. The size of the extracted microplastics ranged from 1 to 1299 μm and included polyethylene, poly(methyl methacrylate), and Nylon. These findings suggest a possible link between colorectal cancer and microplastic exposure.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Analytical
Juliana Melo Duarte, Nadia Gabrielle Silva Sales, Jez Willian Batista Braga, Candice Bridge, Mark Maric, Marcelo Henrique Sousa, Juliano de Andrade Gomes
Summary: The aim of this study was to develop a methodology to distinguish automotive paint samples based on the make of the vehicle and its color shade. In-situ analysis of 143 white samples was conducted using Fourier transform infrared spectroscopy and coupled microscopy. Principal component analysis and partial least squares discriminant analysis were used for data analysis, resulting in high classification accuracy.
Article
Oncology
Ali Bohlok, Lisa Inchiostro, Valerio Lucidi, Sophie Vankerckhove, Alain Hendlisz, Jean Luc Van Laethem, Ligia Craciun, Pieter Demetter, Denis Larsimont, Luc Dirix, Peter Vermeulen, Vincent Donckier
Summary: This study investigated the interaction between histological growth pattern (HGP) and surgical margin status in influencing the prognosis of patients undergoing surgery for colorectal liver metastases (CRLMs). The results showed that non-desmoplastic HGP (non-DHGP) was the only predictive factor for R1 margin, and non-DHGP was associated with worse prognosis. Surgical margin status did not have prognostic impact in patients with non-DHGP.
Article
Spectroscopy
Mahsa Mohammadi, Mohammadreza Khanmohammadi Khorrami, Ali Vatani, Hossein Ghasemzadeh, Hamid Vatanparast, Alireza Bahramian, Afshin Fallah
Summary: A rapid quantitative determination method for SARA fractions of crude oil samples was proposed, utilizing ATR-FTIR spectroscopy coupled with chemometric methods. The GA-SVM-R model successfully predicted the SARA analysis of crude oil samples from different Iranian oil fields, showing superior performance compared to other models. This alternative approach is reliable for quantitative determination of SARA analysis in crude oil samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(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)
Article
Chemistry, Analytical
Ilaria Costantini, Kepa Castro, Maria Dolores Rodriguez-Laso, Juan Manuel Madariaga, Gorka Arana
Summary: The study analyzed decorative wallpapers from a historical palace in Oiartzun, Spain, dating back to the 19th century before restoration using various spectroscopic techniques. Lead chromate was identified as the most used pigment, mixed with other pigments and applied with animal glue. The presence of brass as a shiny decorative element and partial degradation of cellulose due to natural aging and wall humidity were also revealed in the analysis.
