Article
Chemistry, Physical
Dajana Mikic, Helena Otmacic Curkovic, Tadeja Kosec, Neven Peko
Summary: Polluted urban environment accelerates the corrosion of bronze sculptures, leading to a patina mainly composed of copper sulfides and sulphates. The composition and quantity of compounds in the patina vary in different areas, which is reflected in the electrochemical behavior observed.
Article
Green & Sustainable Science & Technology
Rafael Gonzalez-Parra, Alba Covelo, Arturo Barba, Miguel Hernandez
Summary: This study investigates the effect of anodic potential on the corrosion resistance of a copper alloy. It is found that the anodic potential can modify the corrosion product layer and enhance the corrosion resistance of the alloy.
Article
Materials Science, Multidisciplinary
R. Gonzalez-Parra, A. Covelo, M. Hernandez
Summary: The study investigated the influence of potentiodynamic scan rate on the formation of artistic patinas on a quaternary copper alloy, revealing the composition and characteristics of patinas formed at different scan rates. The results showed that patinas formed at lower scan rates exhibit better corrosion protection effects.
Article
Materials Science, Multidisciplinary
Angela Kapitanovic, Helena Otmacic Curkovic
Summary: This study examines the corrosion behavior of sulphide patinated bronzes under various aging conditions. The results show that the corrosion resistance of bronze improves over time, with the highest resistance observed under continuous immersion conditions.
Article
Spectroscopy
Roberta Iannaccone, Angela Antona, Donatella Magri, Alba Canu, Salvatore Marceddu, Antonio Brunetti
Summary: This paper presents a case study of a linen yarn discovered inside a bronze necklace fragment at a Nuragic settlement in La Prisgiona, Sardinia. Utilizing various advanced analytical methods, the research successfully enhances our understanding of the materials and techniques of this ancient civilization.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Thermodynamics
R. Skvorcnskiene, I. Kiminaite, L. Vorotinskiene, A. Jancauskas, R. Paulauskas
Summary: Today's society faces the dual challenge of resource depletion and waste accumulation. There is a growing demand to replace conventional plastics with bioplastics in the market, but the sustainability of bioplastics compared to conventional plastics remains a subject of debate due to limited research. This study investigates the degradation characteristics of bioplastics in soil (ATR-FTIR), their thermal stability under pyrolysis, and their suitability for waste-to-energy conversion using thermal analysis (TG) and evolved gas analysis (FTIR). The biodegradation experiments reveal that only corn starch-based bioplastics can completely and rapidly degrade in soil, while other bio-based and petroleum-based plastics only undergo color change and softening. This indicates that bioplastics undergo thermochemical alteration and closely resemble conventional plastics, necessitating proper recycling or conversion into energy to avoid becoming a source of microplastics. Thermogravimetric analysis coupled with evolved gas analysis (TGA-FTIR) shows that the gas yield from bioplastics ranges from 80-99%, with degradation onset occurring at temperatures ranging from 203.0-272.5 degrees C in a nitrogen environment, or 10-20 degrees C lower in a steam-enriched environment. The main volatile products of bioplastics pyrolysis are carboxylic compounds, alkanes, alkenes, aromatic hydrocarbons, amines, CO, and CO2, depending significantly on the chemical composition of the plastic.
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
Materials Science, Multidisciplinary
Heehong Kwon, Namchul Cho
Summary: Copper alloys form a patina on outdoor bronze sculptures due to interaction with air pollutants. This study conducted corrosion experiments to understand the corrosion behavior of an artificial sulfide patina on a quaternary bronze alloy. The change in color and composition of the patina was correlated with the corrosion process, with brochantite being the dominant corrosion product. These findings provide important insights into the preservation of outdoor bronze sculptures.
Article
Chemistry, Applied
Tadeja Kosec, Ziva Novak, Erika Svara Fabjan, Luka Skrlep, Matjaz Finsgar
Summary: This study investigates the protective mechanism of a fluoropolymer-based coating on sulphide patinated bronze. The research finds that the coating can effectively protect the surface of bronze from corrosion, and the composition and concentration of the coating play a significant role in its protective effect.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Optics
Rui Dang, Tong Zhang, Jiaxing Wang, Ming Tang, Peng Jiang, Xiangyang Song, Ran Zhang, Xinnan Zhang
Summary: This study investigates the light sensitivity of traditional Chinese paintings in museum lighting and establishes a mathematical relationship between mechanical damage and illuminance, time. By studying this relationship, recommended illuminance and annual exposure values for samples can be calculated.
Article
Materials Science, Multidisciplinary
Heehong Kwon
Summary: In this study, artificial patina corrosion experiments were conducted on quaternary bronze to examine the corrosion behavior of chloride patina commonly found in bronze objects in marine environments. The results provide important basic data for research on sculpture conservation and corrosion characteristics.
Article
Environmental Sciences
Agata Egea-Corbacho, Ana Pilar Martin-Garcia, Ana A. Franco, Gemma Albendin, Juana M. Arellano, Rocio Rodriguez-Barroso, M. Dolores Coello, Dolores Coello, Jose F. Cabello, Iria Iglesias Prado, Erik-jan Malta
Summary: This study investigates the impact of microplastics (MP) on aquaculture systems, covering water intake, purification treatment, culture tanks, feed, and the organism. The study shows that purification systems can reduce the entry of MP from the environment, but new MP are observed in the sea bass tank, mainly due to added feed and materials used in aquaculture systems. Different types of MP are found in the sea bass samples. Consideration and reduction of other entry routes are necessary to prevent MP from reaching the human consumer in aquaculture facilities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
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
Biotechnology & Applied Microbiology
H. Otmacic Curkovic, D. Mikic, L. Bera, E. Kovacevic, M. Marcelja
Summary: The study aimed to examine corrosion behavior of bare and artificial patinated bronzes in urban outdoor atmosphere. Results showed that artificial patinas initially decreased corrosion resistance but improved over time, with certain combinations showing higher corrosion resistance than naturally patinated bronze.
CHEMICAL AND BIOCHEMICAL ENGINEERING QUARTERLY
(2021)
Article
Chemistry, Analytical
Gongji Wang, Wumin Cai, Hao Wu, Canyu Yang, Kai Yu, Ruina Liu, Xin Wei, Hancheng Lin, Qinru Sun, Zhenyuan Wang
Summary: In this study, a prediction model for the rapid identification of bloodstains on rough carriers was established using FTIR and chemometrics. The results showed that the model had good classification ability and could accurately identify human and non-human bloodstains on cotton and napkin carriers. The study also demonstrated the potential of FTIR in forensic analysis under natural conditions.
MICROCHEMICAL JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Adnan Mujezinovic, Sanja Martinez, Kresimir Kekez
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2019)
Article
Materials Science, Multidisciplinary
Katarina Marusic, Kresimir Kekez, Sanja Martinez
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2019)
Article
Materials Science, Characterization & Testing
Veselinka Grudic, Sanja Martinez, Bojana Knezevic, Ivana Boskovic
Article
Chemistry, Analytical
Ivana Zrinski, Kingkan Pungjunun, Sanja Martinez, Janez Zavagnik, Dalibor Stankovic, Kurt Kalcher, Eda Mehmeti
MICROCHEMICAL JOURNAL
(2020)
Article
Chemistry, Applied
Ivana Soic, Sanja Martinez, Mia Dubravic
PROGRESS IN ORGANIC COATINGS
(2019)
Article
Materials Science, Multidisciplinary
Stojan Bozovic, Tena Gvozdanovic, Ana Kras, Veselinka Grudic, Stanislav Kurajica, Sanja Martinez
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Analytical
Ivana Zrinski, Sanja Martinez, Astrid Ortner, Anchalee Samphao, Janez Zavasnik, Kurt Kalcher, Eda Mehmeti
Summary: The electrocatalytic oxidation of rapamycin was investigated for the first time using a modified carbon paste electrode incorporating multi-walled carbon nanotubes and conductive polymer pyrrole. The optimized experimental parameters showed linear signals with the concentration of rapamycin, as well as good repeatability and reproducibility. The sensor was successfully applied for the determination of rapamycin in commercial pharmaceutical formulations with high recoveries.
Article
Electrochemistry
Ivana Zrinski, Sanja Martinez, Ema Antonia Gospic
Summary: The catalytic and photocatalytic effects of TiO2 nanoparticles on the electrooxidation of various acids on carbon paste electrodes were studied. It was found that the introduction of TiO2 and UV illumination both increased the anodic charge of antioxidants, indicating enhanced oxidation. UV illumination further promoted the oxidation process by exciting TiO2 electrons and creating a photocurrent.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Jakov Batelic, Vedrana Spada, Lovro Liveric, Sanja Martinez
Summary: The study analyzed corrosion deposits to determine the main reason for leakage and flow damping in the thermal power plant, identifying iron-oxidizing bacteria as the primary cause of intense corrosion. The absence of protective carbonate scales was also found to contribute to the severe corrosion of the pipeline steel.
MATERIALI IN TEHNOLOGIJE
(2021)
Article
Engineering, Electrical & Electronic
Adnan Mujezinovic, Sanja Martinez
Summary: This study interprets multiparametric measurements on a pipeline affected by dynamic stray currents from DC train traction. The analysis included time domain and wavelet space analysis to pinpoint harmful stray current periods and differentiate between potential shifts from nearby passing trains and those from trains in the transport network.
IEEE TRANSACTIONS ON POWER DELIVERY
(2021)
Article
Chemistry, Applied
Sanja Martinez, Ivana Soic, Vedrana Spada
Summary: The equivalent circuit Re(Q(1)[R-1(Q(2)R(2))]) was used to analyze the performance of industrial coating systems under long-term exposure to 3.5% NaCl. The sensitivity of coatings to environmental conditions correlated with the exposure conditions, and the adhesion test and cathodic offset potential could evaluate the barrier properties of the coatings.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Multidisciplinary
Sanja Martinez, Esra Ilhan-Sungur, Nurhan Cansever, Fuad Khoshnaw
Summary: Despite proper water treatment, aged pipelines may experience internal corrosion, leading to integrity concerns. This study investigated a typical corrosion damage in an aged water distribution pipeline, characterized by a single perforation covered by a corrosion product cap and surrounded by blisters. The presence of bacteria and sulphides was detected in the corrosion product cap, while abundant fungi were observed at the bottom of the blisters.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2022)
Article
Chemistry, Applied
Ines Soljic, Ivana Soic, Lorena Kostelac, Sanja Martinez
Summary: The study indicates that the accuracy and precision of using EIS to measure coatings can be significantly improved at high signal amplitudes, while AC interferences can limit both accuracy and precision. Although specific conclusions may be instrument-dependent, they still reflect the capabilities of today's high-end EIS devices.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Multidisciplinary
Marina Mrda Lalic, Sanja Martinez
ACTA CHIMICA SLOVENICA
(2019)
Article
Chemistry, Multidisciplinary
Stojan Bozovic, Sanja Martinez, Veselinka Grudic
ACTA CHIMICA SLOVENICA
(2019)
Article
Chemistry, Analytical
Qian Wu, Li Tian, Xiangyu Shan, Huiling Li, Chao Li, Juan Lu
Summary: A novel ECL sensor was developed by modifying Fe3CuO4-Ru(bpy)3+ and GO-CdS@ZnS on the electrode for the detection of permethrin. The sensor exhibited high sensitivity and a wide detection range.
Article
Chemistry, Analytical
Tingting Gong, Lei Liao, Bingying Jiang, Ruo Yuan, Yun Xiang
Summary: In this study, a fluorescent biosensing system for high sensitivity detection of MT was established using a new Ag+-stabilized DNA triplex probe (Ag+-SDTP) combined with catalytic hairpin assembly (CHA) and CRISPR/Cas12a signal enhancements. The sensing method is able to selectively detect MT from other non-specific molecules and can achieve low level detection of MT in diluted human serums, demonstrating its potential for monitoring disease-specific MT biomarker at trace levels.
Article
Chemistry, Analytical
Estrella Sanz Rodriguez, Kyra Wood, Paul R. Haddad, Brett Paull
Summary: This study presents a simple, rapid, and reliable method for determining boron in aqueous solutions using suppressed ion chromatography coupled to electrospray ionisation-triple quadrupole mass spectrometry. The method achieved a low limit of detection and demonstrated excellent analytical performance.
Article
Chemistry, Analytical
Aline Cournut, Paul Moustiez, Yannick Coffinier, Christine Enjalbal, Claudia Bich
Summary: Alzheimer's disease is a major cause of senile dementia and is characterized by the aggregation of neurofibrillary tangles and amyloid plaques in the brain. The A beta 1-42 peptide is considered the primary cause of neurotoxicity due to its insolubility and subsequent aggregation. A beta 1-42 and A beta 1-40 have been identified as relevant biomarkers for AD diagnosis, and SurfaceAssisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS) was used to monitor the A beta 1-42/A beta 1-40 ratio without prior sample treatment.
Article
Chemistry, Analytical
Dotse Selali Chormey, Buse Tugba Zaman, Tulay Borahan Kustanto, Sezin Erarpat Bodur, Suleyman Bodur, Elif Ozturk Er, Sezgin Bakirdere
Summary: This review provides an overview of the harmful effects of endocrine disrupting chemicals (EDCs) on human health and introduces the methods for analyzing EDCs. Recent research has focused on using green chemicals, such as deep eutectic solvents (DESs), for microextraction to ensure environmental safety.
Article
Chemistry, Analytical
Yan Zhang, Renfeng Xu, Jingjing Wu, Zhenghong Zhang, Yuhuang Wang, Hongqin Yang, Sheng Zhang
Summary: This study visualized the pore-like structures in prostate cancer cell membranes after treatment with the anticancer drug paclitaxel, demonstrating its mechanism of action related to oxidative damage.
Article
Chemistry, Analytical
Chihong Ma, Qin Zhou, Jinjin Shi, Hua Gao, Di Huang, Huimin Xue, Han Wang, Zhenzhong Zhang, Sen Yang, Junli Zhang, Kaixiang Zhang
Summary: We developed a CRISPR-empowered electrochemical biosensor, named PER-E-CRISPR, for amplification-free and sensitive detection of miR-21. The biosensor combines the advantages of CRISPR/Cas13a and primer exchange reaction (PER) for target amplification. Under optimized conditions, the PER-E-CRISPR assay exhibits a linear range from 10-13 to 10-7 M and a limit of detection of 30.2 fM. The biosensor shows excellent performance in actual plasma, indicating promising prospects for miRNA detection in molecular diagnosis.
Article
Chemistry, Analytical
Gang Liang, Jie Zhao, Yufei Gao, Tao Xie, Jianhui Zhen, Ligang Pan, Wenwen Gong
Summary: Molecular docking (MD) analysis is widely used for studying the interaction between aptamers and small molecules. This study established steady-state aptamers of tertiary structures (SATS) using specific aptamers of tetracycline antibiotics as docking models. Molecular docking results revealed multiple binding sites in the SATS of aptamers, with significant variations in binding free energy (BFE) and docking score (DS). The study also proposed a method for MD analysis based on SATS, providing insights into binding mode and predicting binding sites.
Article
Chemistry, Analytical
Yixuan Xu, Changchang Teng, Huiping Dang, Dalong Yin, Lifeng Yan
Summary: Stable organic radical molecules with high NIR fluorescence quantum efficiency have been synthesized and encapsulated into nanoparticles, which show great potential for both photodynamic therapy (PDT) and photothermal therapy (PTT) of tumors.
Article
Chemistry, Analytical
Yu Su, Dandan Yang, Yanjie Wang, Jie Ding, Lan Ding, Daqian Song
Summary: In this study, a highly selective molecularly imprinted polymer Cu-MIPs@CS was designed and synthesized for bisphenol A (BPA). Cu-MIPs@CS showed significantly enhanced imprinting factor and selective factor towards BPA compared to MIPs@CS. It also exhibited superior discrimination ability between BPA and its structural analogue. Additionally, Cu-MIPs@CS were successfully applied as a solid phase extraction adsorbent for the determination of BPA in drinking water samples.
Article
Chemistry, Analytical
Yi Qiao, Qiongdan Zhang, Yukun He, Tianguang Cheng, Jing Tu
Summary: Single cell heterogeneity plays an important role in many biological phenomena, and distinguishing cells with specific mutations is beneficial for clinical diagnosis and drug screening. This study introduces a gel plate platform that can distinguish cell types based on their phenotypes, with low equipment requirement. The gel platform has potential in point-of-care circumstances and single-cell stimulation responses that prioritize efficiency and simplicity.
Article
Chemistry, Analytical
Chengke Wang, Shuyang Sun, Ping Wang, Huawei Zhao, Wenling Li
Summary: The food safety of aquatic products is a global concern. Nanotechnology-based analyses have advantages in the detection of bacteria, metal ions, and small molecule contaminants. This review summarizes the recent advances in biosensing strategies for aquatic products and highlights the application of nanomaterials, lateral flow-based biosensors, surface-enhanced Raman scattering, microfluidic chips, and molecular imprinting technologies.
Article
Chemistry, Analytical
Liping Zhu, Zeng Tang, Xuemei Zhang, Li Zhu, Tian Meng, Linying Yu, Ting Xiao, Shasha Lu, Xiaoli Xiong, Xiurong Yang
Summary: A sensitive off-on electrochemiluminescence DNA sensor was developed using Exo III-assisted cascade amplification system. The sensor achieved high selectivity and ultra-high sensitivity in detecting target DNA by utilizing ECL and SPR effects. This study provides a new perspective for designing highly sensitive and programmable ECL biosensors.
Article
Chemistry, Analytical
Tong Li, Mengxu Sun, Suping Xia, Ting Huang, Rong-Tian Li, Chunrong Li, Zong Dai, Jin-Xiang Chen, Jun Chen, Nuan Jia
Summary: Here, we developed a binary system based on DNA tetrahedron and fluorogenic RNA aptamers for highly specific and label-free mRNA imaging in living cells. This system achieved high specificity label-free detection of nucleic acids with a detection limit of 1.34 nM. The method has potential applications in early disease diagnosis and new drug development.
Article
Chemistry, Analytical
Yao Zhao, Shu Zhang, Wang Yao, Yuxuan Zhu, Jing Qian, Juan Yang, Nianjun Yang
Summary: A new hierarchical nanostructured composite with high conductivity and catalytic activity is synthesized. The sensor exhibits significant catalytic effect and high sensitivity for monitoring the environmental endocrine disruptor bisphenol A (BPA).
