Article
Chemistry, Analytical
Ruihua Huang, Ke Zhang, Haowei Sun, Dafeng Zhang, Jian Zhu, Shuxing Zhou, Wenyan Li, Yongtao Li, Chunqiong Wang, Xiuxiu Jia, Thomas Wagberg, Guangzhi Hu
Summary: In this study, cetyltrimethylammonium bromide and zeolitic imidazolate framework-8 (ZIF-8) were assembled via chemical co-precipitation, and high-quality carbon-based metal-free nanomaterials were synthesized using heat treatment. The internal and morphological characteristics of hexagonal Star ZIF-8 were investigated. An electrochemical sensor with a good response to Cd(II) was prepared using Star ZIF-8 nanomaterial-modified electrodes. The sensitivity of the sensor was increased by five orders of magnitude.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Enidale Yazie Muluneh, Menbere Leul Mekonnen, Siraye Esubalew Debebe
Summary: This study reported the use of Square Wave Anodic Stripping Voltammetry technique with a bismuth-modified glassy carbon electrode for the simultaneous determination of lead and cadmium content in paints. The results showed excellent percent recovery values and the Pb and Cd contents in these products have not been reported yet. The method is not significantly influenced by the paint matrix and can be used as an alternative analytical method for the determination of heavy metals in the paint matrix. The amount of Pb(II) and Cd(II) in the given paints are below the permissible levels based on the regulation of Ethiopia, indicating their safety for use in the country.
Article
Engineering, Environmental
Ruihua Huang, Jiapei Lv, Jianbing Chen, Yeling Zhu, Jian Zhu, Thomas Wagberg, Guangzhi Hu
Summary: This study proposes a boron and nitrogen co-doped carbon material derived from a metal-organic framework material for the detection of heavy metal ions in food. The sensor shows good sensitivity and selectivity for Cd(II) and Pb(II), and has potential applications in complex samples.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Megumi Kasuno, Hitomi Osuga, Katsuya Shina, Takuya Yamazaki
Summary: A flow coulometric electroanalytical system was developed to determine the Pb(II) content with high efficiency and low detection limits. Selective determination of Pb(II) was successfully achieved by adjusting the electrodeposition potential.
Article
Chemistry, Analytical
Ning Liu, Guo Zhao, Gang Liu
Summary: This study introduces a new method to detect Cd(II) and Pb(II) using feature stripping currents, which shows better anti-interference capability and detection accuracy. Models established using SVR and the partial least square algorithms demonstrate superior detection performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Shi-Hua Chen, Zong-Yin Song, Xiang-Yu Xiao, Hong-Qi Huang, Yuan-Fan Yang, Pei-Hua Li, Meng Yang, Xing-Jiu Huang
Summary: Vacancy and doping engineering were used to improve the electrocatalytic ability of nanomaterials for detecting heavy metal ions. The P-doped material showed enhanced sensitivity and selectivity towards As(III), and the vacancies provided abundant electrons to form active centers.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Hui Li, Jie Zhao, Shifan Zhao, Guofeng Cui
Summary: A novel three-electrode sensor was developed for simultaneous detection of Pb(II), Cd(II), and Zn(II) by depositing a bismuth film on a screen-printed gold working electrode. The sensor showed a wide linear range, low detection limits, good anti-interference ability, and stability. Such sensors are expected to be useful for portable heavy metal detection applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Artur Huseinov, Abdul Hoque, Kyle A. Ruble, Brandon J. Dee, Noe T. Alvarez
Summary: This study presents a reagentless sample preparation method for the detection of particulate Pb contaminants in tap water using membrane electrolysis. The membrane electrolysis allows for the in-situ generation of nitric acid, which, when combined with anodic stripping voltammetry, provides a powerful and reagent-free detection of Pb2+. The setup configuration enables semi-autonomous operation and requires minimal attention, making it more suitable for continuous measurements of particulate contaminants in tap water.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Reyhan Dincer, Sukriye Ulubay Karabiberoglu, Zekerya Dursun
Summary: This study proposes a dependable approach for the selective and sensitive identification of zinc, cadmium and lead in different sample matrices using an over-oxidized poly(xylenol blue) film glassy carbon electrode coated with bismuth (Bi/PXBov.ox/GCE). The best conditions for determining these elements were found to be a 0.1 mol L-1 acetate buffer solution as supporting electrolyte (pH 4.5), -1.5 V accumulation potential, and 180 s accumulation duration. Under these conditions, the detection limits of Zn(II), Cd(II) and Pb(II) were 3.20 μg L-1, 0.21 μg L-1 and 1.98 μg L-1, respectively. Moreover, this novel, cheap and easy-to-prepare Bi/PXBov.ox/GCE was successfully used for the analysis of Zn(II), Cd(II) and Pb(II) in lipstick samples, with consistent results compared to inductively coupled plasma mass spectrometry.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Gul Sirin Ustabasi, Ismail Yilmaz, Mustafa Ozcan, Ebru Cetinkaya
Summary: Pencil graphite electrode modified with MWCNT and Bi3+ showed improved sensitivity and reduced charge transfer resistance in the simultaneous analysis of Pb2+, Cd2+, and Zn2+. This modification method offers effective electroanalytical performance with low time consumption and cost.
Article
Chemistry, Analytical
Laia L. Fernandez, Julio Bastos-Arrieta, Cristina Palet, Mireia Baeza
Summary: This study describes the implementation of customized graphite electrodes decorated with Hg-NPs for the electrochemical detection of Cd, Pb, and Cu. The results show improved responses towards these analytes compared to bare graphite electrodes. The analytical performance of the sensors was evaluated using square-wave anodic stripping voltammetry and showed good agreement with ICP-MS measurements.
Article
Chemistry, Multidisciplinary
Thi Thu Hien Nguyen, Thi Hai Yen Pham, Tien Dat Doan, Nhung Hac Thi, Ho Thi Oanh, Thi Thao Nguyen, Vu Thi Thu Ha, Tuyen Van Nguyen, Min Ju Cho, Dong Hoon Choi, Mai Ha Hoang
Summary: A new method for fabricating high-performance electrochemical sensors for lead ion detection using square-wave anodic stripping voltammetry was developed. The electrode exhibited good conductivity and high stability, suitable for detecting Pb(II).
Review
Environmental Sciences
Evelyne Dore, Darren A. Lytle, Lauren Wasserstrom, Jeff Swertfeger, Simoni Triantafyllidou
Summary: Field analyzers for lead in drinking water samples are gaining interest for their rapid, inexpensive, and simple quantification. This literature review compares the data quality of field analyzers to laboratory methods and provides practical information on commercial lead analyzers. Concerns about inadequate sample preparation potentially leading to underestimations are raised, but field analyzers have shown strengths in quickly obtaining results and detecting lead in certain situations.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Simoni Triantafyllidou, Lauren Wasserstrom, James Nelson, Dawn Webb, Casey Formal, Evelyne Dore, Darren Lytle
Summary: Water lead measurements were evaluated using two field analyzers, ASV and fluorescence spectroscopy, and compared to reference laboratory measurements. The results showed that ASV had better performance than fluorescence under controlled conditions, but both methods underestimated lead concentrations in more complex water matrices.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Analytical
Dionysios Soulis, Varvara Pagkali, Christos Kokkinos, Anastasios Economou
Summary: The fabrication method of ink-drawn fluidic electrochemical paper-based analytical devices (ePADs) for the determination of trace Pb(II) and Cd(II) has been reported. The ePADs are easy to fabricate, cost-effective, and suitable for on-site determination of Pb(II) and Cd(II) in environmental and food samples.
Article
Chemistry, Multidisciplinary
Tingfeng Song, Huan Tan, Saul Estandia, Jaume Gazquez, Marti Gich, Nico Dix, Ignasi Fina, Florencio Sanchez
Summary: The metastable orthorhombic phase of HZO can be stabilized on LSMO/STO(110), resulting in improved ferroelectric properties and higher endurance.
Article
Nanoscience & Nanotechnology
Jan Grzelak, Jaume Gazquez, Alba Grayston, Mariana Teles, Fernando Herranz, Nerea Roher, Anna Rosell, Anna Roig, Marti Gich
Summary: Multifunctional magnetic nanocomposites based on mesoporous silica have a wide range of potential applications in various fields. By controlling the structure, nanoparticles with different shapes can be prepared to respond to external magnetic fields. The application of these nanoparticles in biomedicine is particularly promising, but research on nanorods is currently limited.
ACS APPLIED NANO MATERIALS
(2022)
Article
Biophysics
Manuel Gutierrez-Capitan, Antoni Baldi, Angel Merlos, Cesar Fernandez-Sanchez
Summary: This work presents a new on-chip array of miniaturized electrochemical cells, which shows excellent performance in electrochemical detection studies without cross-talk between cells. The array layout is suitable for multiplexed electrochemical immunoassays and immunosensor approaches, and can be implemented in simplified electrochemical ELISA platforms.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Mireia Burdo-Masferrer, Maria Diaz-Gonzalez, Ana Sanchis, Alvaro Calleja, Maria-Pilar Marco, Cesar Fernandez-Sanchez, Antonio Baldi
Summary: This article reports a new wax valve design that uses LED light for both opening and closing, which can be used to drive complex assays in lab-on-a-chip devices. A chip for enzyme-linked immunosorbent assays (ELISA) is designed, and a compact generic instrument for colorimetric readout of the assay is presented.
Article
Chemistry, Multidisciplinary
W. Duan, M. Torras, A. Roig, C. Fernandez-Sanchez, M. Gich
Summary: Intensive water quality monitoring due to new wastewater regulations requires the development of fast and affordable analytical technologies. Electrochemical sensors are potential alternatives for sensitive analysis of environmentally relevant chemicals and require easily processed and mass-produced analyte-specific electrodes. This study investigates different methods to prepare composites for COD analysis in wastewater, evaluating their analytical performance and characterizing their microstructure and crystallinity.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Wenchao Duan, Cesar Fernandez-Sanchez, Marti Gich
Summary: The study shows that bread waste can be recycled and valorized to produce a composite conductive material with excellent properties for chemical sensor applications. The material preparation is sustainable, low-cost, simple, and upscalable, making it suitable for large-scale manufacturing of single-use electrochemical sensors for the rapid analysis of halogenated organic pollutants in waters.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
C. R. S. Haines, M. Gich, J. L. Garcia-Munoz, A. Romaguera, Z. Ma, M. B. Costa, M. A. Carpenter
Summary: Resonant Ultrasound Spectroscopy was used to investigate the elastic and anelastic properties of e-Fe2O3 as functions of temperature and magnetic field strength. It was found that magnetic ordering caused strains, but did not result in elastic softening. The magnetic and thermal history of the material affected its stiffening or softening during heating. The study also revealed that e-Fe2O3 exhibited both piezoelectric and piezomagnetic properties, and the magnetic domain structure and magnetic field had an impact on the acoustic resonance frequencies.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Review
Critical Care Medicine
Aina Areny-Balaguero, Anna Sole-Porta, Marta Camprubi-Rimblas, Elena Campana-Duel, Adrian Ceccato, Anna Roig, Daniel Closa, Antonio Artigas
Summary: Sepsis is a complex syndrome caused by infection that often leads to death in infectious diseases. Personalized management is necessary due to the complexity and heterogeneity of sepsis. Extracellular vesicles (EVs) have the potential to tailor sepsis treatment and diagnosis, and advancements in EV-based therapies are discussed in this article. The use of hybrid and fully synthetic nanocarriers that mimic EVs is also explored. Pre-clinical and clinical studies are reviewed to provide an overview of the current and future perspectives of EV-based sepsis diagnosis and treatment.
INTENSIVE CARE MEDICINE EXPERIMENTAL
(2023)
Article
Engineering, Biomedical
Shu Wang, Meritxell Rovira, Silvia Demuru, Celine Lafaye, Jaemin Kim, Brince Paul Kunnel, Cyril Besson, Cesar Fernandez-Sanchez, Francisco Serra-Graells, Josep Maria Margarit-Taule, Joan Aymerich, Javier Cuenca, Ilya Kiselev, Vincent Gremeaux, Mathieu Saubade, Cecilia Jimenez-Jorquera, Danick Briand, Shih-Chii Liu
Summary: Biomarkers in sweat can be used to evaluate the physiological conditions of athletes. This study presents a wearable sweat biomonitoring patch that can record and predict physiological biomarkers in real-time, showing promising applications for athletes performing endurance exercise.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Manuel Gutierrez-Capitan, Ana Sanchis, Estela O. Carvalho, Antonio Baldi, Lluisa Vilaplana, Vanessa F. Cardoso, Alvaro Calleja, Mingxing Wei, Roberto de la Rica, Javier Hoyo, Arnau Bassegoda, Tzanko Tzanov, Maria-Pilar Marco, Senentxu Lanceros-Mendez, Cesar Fernandez-Sanchez
Summary: This study demonstrates a unique and easily deployable multiplex device that can simultaneously measure interleukin-8, tumor necrosis factor-α, and myeloperoxidase biomarkers in sputum, aiming to facilitate the timely detection of acute exacerbations of chronic obstructive pulmonary disease.
Article
Nanoscience & Nanotechnology
Wid Mekseriwattana, Witthawat Phanchai, Tipparat Thiangtrongjit, Onrapak Reamtong, Theerapong Puangmali, Patompon Wongtrakoongate, Anna Roig, Kanlaya Prapainop Katewongsa
Summary: This study investigated the interactions of SPIONs with ariboflavin (Rf)-citrate ligand with proteins in human serum, as well as the interactions with riboflavin carrier protein (RCP). The results showed that citrate-coated SPIONs exhibited stronger binding to RCP, while Rf-coated SPIONs had lower binding affinity to serum proteins. These findings are important for improving the functionality of Rf ligand, enhancing specific cellular interactions, and improving the Rf-SPIONs as MRI contrast agents for breast cancer.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Nanthilde Malandain, Hector Sanz-Fraile, Ramon Farre, Jorge Otero, Anna Roig, Anna Laromaine
Summary: There is a growing interest in developing natural hydrogel-based scaffolds for three-dimensional cell culture. In this study, type I collagen was mixed with bacterial nanocellulose fibers (BCf) to create reinforced scaffolds with improved mechanical properties. The composite hydrogels showed increased stiffness compared to collagen hydrogels alone, while maintaining the same viscoelastic response.
ACS APPLIED BIO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Johanna van Gent, Anna Roig
Summary: Bacterial cellulose (BC) is a biopolymer with multiple applications in the biomedical field. By functionalizing BC with CeO2 NPs, a composite material with self-regenerating antioxidant properties is achieved. Low-temperature in situ syntheses of CeO2 NPs in BC enables the formation of BC-CeO2 composites that exhibit enhanced antioxidant performance due to the incorporation of zirconium.
Article
Biochemistry & Molecular Biology
Anna Avino, Carlos Cuestas-Ayllon, Manuel Gutierrez-Capitan, Lluisa Vilaplana, Valeria Grazu, Veronique Noe, Eva Balada, Antonio Baldi, Alex J. Felix, Eva Aubets, Simonas Valiuska, Arnau Dominguez, Raimundo Gargallo, Ramon Eritja, M-Pilar Marco, Cesar Fernandez-Sanchez, Jesus Martinez de la Fuente, Carlos J. Ciudad
Summary: An innovative analytical approach based on sandwich oligonucleotide hybridization has been developed, which can be adapted to multiple biosensing devices for the rapid detection of pathogens.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Tingfeng Song, Saul Estandia, Nico Dix, Jaume Gazquez, Marti Gich, Ignasi Fina, Florencio Sanchez
Summary: This study explores the properties of ferroelectric HfO2 films grown on La0.67Sr0.33MnO3/SrTiO3(001) and SrTiO3(111) substrates. The results show that the orthorhombic phase can be stabilized by tilted epitaxy, and the orientation of orthorhombic crystallites in the film is different from that of the substrate. The measured results demonstrate a high remanent polarization, as well as good endurance and retention.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
