Review
Chemistry, Analytical
Berna Dalkiran, Christopher M. A. Brett
Summary: This review summarizes the use of redox polymers and nanomaterials in electrochemical sensing platforms, discussing the contribution of different materials to sensor performance and how their combination improves analytical performance.
Article
Chemistry, Multidisciplinary
Alexander M. Jakob, Simon G. Robson, Vivien Schmitt, Vincent Mourik, Matthias Posselt, Daniel Spemann, Brett C. Johnson, Hannes R. Firgau, Edwin Mayes, Jeffrey C. McCallum, Andrea Morello, David N. Jamieson
Summary: This study discusses the material choice of silicon chips containing arrays of single dopant atoms for classical and quantum devices, as well as the method of near-surface implantation of single ions and the associated physics model and limiting factors.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Analytical
Guzel Ziyatdinova, Ekaterina Guss, Elvira Yakupova
Summary: One sustainable trend in modern analytical chemistry is the design and fabrication of novel electrochemical sensors with high analytical and operational characteristics, focusing on sensors based on electropolymerized natural phenolic antioxidants. The combination of electropolymerized natural phenolic antioxidants and carbon nanomaterials as modifiers is of special interest for improving the performance of the sensors.
Review
Electrochemistry
Asha Sharma, Aamir Ahmed, Anoop Singh, Sai Kiran Oruganti, Ajit Khosla, Sandeep Arya
Summary: Tin oxide (SnO2) based sensors have been investigated for chemical sensing applications due to their excellent thermal stability, biocompatibility, bandgap, cost effectiveness and abundant availability. These sensors are modified with SnO2 nanomaterials in combination with various metals, semiconductors and carbon derivatives to improve sensing performance. Various voltammetric and amperometric techniques are used to study the electrochemical properties and behavior of analytes on the surface of modified electrodes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
S. M. Abu Nayem, Syed Shaheen Shah, Nasrin Sultana, Md. Abdul Aziz, A. J. Saleh Ahammad
Summary: This review discusses the applications of nanomaterials as electrode materials for detecting dihydroxybenzene, emphasizing their electrocatalytic activities. The focus is on the simultaneous detection of dihydroxybenzene due to its low degradation rate and high toxicity.
Article
Chemistry, Analytical
Elvira Yakupova, Aisylu Mukharlyamova, Igor Fitsev, Guzel Ziyatdinova
Summary: Electrochemical polymerization of phenolic acids with carbon nanotubes was used to create highly conductive and high surface area electrodes for sensitive quantification of hesperidin. The optimized electropolymerization conditions and modified electrode showed improved electroactive surface area and reduced charge transfer resistance. The developed electrode achieved the best linear dynamic ranges and detection limit for hesperidin quantification. It was successfully tested on orange juice and compared with chromatography.
Review
Chemistry, Analytical
Jingrong Gao, Shan He, Anindya Nag
Summary: This paper discusses the recent progress in the use of laser-induced graphene sensors for electrochemical detection of glucose molecules, highlighting their advantages and potential applications in various sensorial fields.
Article
Green & Sustainable Science & Technology
Junaid Khan, M. Mariatti
Summary: Conductive ink with stable dispersion and excellent printing properties can be produced using graphene-based nanomaterials and suitable solvents. Natural surfactants, such as alkali lignin, can minimize limitations in printing properties, ensuring smooth printing and longer shelf life. Alkali lignin surfactant provides long-term stability and better printing properties, making it a potential candidate for flexible electronic devices.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biophysics
Jiao Xie, Lijing Zhang, Zhiling Liu, Guixia Ling, Peng Zhang
Summary: This article reviews the application of nanomaterial-modified sensors in the determination of antipsychotics concentrations. Nanomaterial-modified electrodes, as sensors, have the potential to quickly and accurately measure the concentration of drugs in biological samples. Nanomaterial sensors offer a promising solution to overcome the limitations of traditional detection methods in terms of complexity and cost, and can serve as effective tools for drug monitoring.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Review
Materials Science, Multidisciplinary
Anindya Nag, Roy B. V. B. Simorangkir, Dinesh R. Gawade, Suresh Nuthalapati, John L. Buckley, Brendan O'Flynn, Mehmet Ercan Altinsoy, Subhas Chandra Mukhopadhyay
Summary: This paper presents a comprehensive review on the use of graphene for developing wearable temperature sensors. Flexible temperature sensors using various polymers and nanomaterials have been fabricated and widely used to detect temperature over a wide range in biomedical and industrial applications. Graphene, with its exceptional electrical, mechanical, and thermal properties, has been extensively employed for the development of wearable temperature sensors. The paper highlights significant works and suggests possible remedial steps to address the challenges in the current literature.
MATERIALS & DESIGN
(2022)
Article
Engineering, Electrical & Electronic
Yasmin Mustapha Kamil, Muhammad Hafiz Abu Bakar, Sura Hmoud Al-Rekabi, Mohd Hanif Yaacob, Amir Syahir, Mohd Adzir Mahdi
Summary: The study introduced a PAMAM-GO integrated microfiber sensor to detect Dengue virus II E protein, achieving higher sensitivity. By reducing the optical fiber diameter, this sensor can achieve better detection performance and potentially enhance the diagnostic capability for dengue fever.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Polymer Science
Mengyi Xu, Qian Wu, Wei Wei, Xiaoya Liu, Xiaojie Li
Summary: Photoresists play a crucial role in industrial fields like micro-electro mechanical systems, micromachining, and chip packaging. Traditional single-component photoresists require additional steps to render them conductive, making the process complex and limiting their applications. By doping graphene and silver nanowires into SU-8 photoresist, a conductive composite photoresist was successfully developed for micro-patterning and nonenzymatic sensing coatings.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Materials Science, Multidisciplinary
Ming-Zhi Jiao, Xiao-Yu Chen, Ke-Xiang Hu, De-Yu Qian, Xiao-Hu Zhao, En-Jie Ding
Summary: Conductive-type methane sensors are small, simple and stable devices that are ideal for mining safety and home safety applications. Recent research on nanomaterials-based sensors focuses on synthetic methods, sensing mechanisms, and the relationship between sensing performance and the structures and components of the nanomaterials. The future trends and perspectives of nanomaterials-based methane sensors are also discussed in the review.
Review
Environmental Sciences
Nidhi Puri, Anjali Gupta
Summary: Various pesticides and organic compounds generated as a result of rapid industrialization and pharmaceutical companies pose a major threat to the environment. Novel photocatalysts based on zinc oxide and titanium oxide exhibit great potential towards absorption of these organic pollutants from wastewater. However, several limitations like poor affinity, particle agglomeration, high band gap, and recovery issues need to be addressed to enhance their efficiency and make them cost effective and sustainable.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Elijah Petersen, Ana C. Barrios, Rhema Bjorkland, David G. Goodwin Jr, Jennifer Li, Greta Waissi, Theodore Henry
Summary: Bioaccumulation is an important factor to consider for understanding the ecotoxicity of substances. While models and methods exist for evaluating bioaccumulation of dissolved substances, it is more difficult to assess the bioaccumulation of particulate contaminants like carbon nanomaterials and nanoplastics. This study critically reviews the methods used to evaluate bioaccumulation of different carbon nanomaterials and nanoplastics, finding that further research is needed to develop analytical methods for measuring unlabeled CNMs and nanoplastics.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Fisheries
Camila Oliveira Paranhos, Luanna do Carmo Neves, Walisson Souza e Silva, Ronald Kennedy Luz
Summary: The aim of this study was to evaluate the survival and water quality of Hypsolebias flagellatus during transportation with different salt concentrations, transport times, and previous diets. The results showed that the concentration of 4 g salt/L had the highest dissolved oxygen, and the survival rate was lower after 48 hours of transportation. Meanwhile, the type of diet also had an influence on water quality and dissolved oxygen.
JOURNAL OF APPLIED AQUACULTURE
(2023)
Article
Chemistry, Analytical
Priscila Fernanda Pereira Barbosa, Valmor Roberto Mastelaro, Eduardo Guimaraes Vieira, Devaney Ribeiro do Carmo
Summary: A synthesis method for the functionalization of beta-cyclodextrin (beta-Cd) with polyamide dendrimer PAMAM G.0 and the formation of a mixed-valence complex (beta-Cd-PAMAM-Ag/Fe) with silver and potassium hexacyanoferrate (III) was proposed. The material was characterized using SEM, FTIR, XRD, EDS, and EPR. The electrochemical behavior of the hybrid complex was investigated, and optimal analytical responses were obtained by evaluating various parameters. The beta-Cd-PAMAM-Ag/Fe material showed successful application in the electrocatalytic oxidation of dopamine using CV and SWV.
Article
Materials Science, Ceramics
Daiane Fernandes, Mateus M. Ferrer, Cristiane W. Raubach, Mario L. Moreira, Pedro L. G. Jardim, Eduardo Ceretta Moreira, Carlos F. O. Graeff, Sergio S. Cava
Summary: NaNbO3 nanoparticles were synthesized using microwave-assisted hydrothermal method and heat treatment. The crystallinity and particle shape of the nanoparticles were modulated by heat treatment. The obtained nanoparticles showed excellent photocatalytic activity.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Plant Sciences
Mauro Mesko Rosa, Renan Souza Silva, Marcus Vinicius Fipke, Raul Andres Cordova, Nelson Diehl Kruse, Edinalvo Rabaioli Camargo, Gustavo Maia Souza, Luis Antonio de Avila
Summary: Plants exposed to suboptimal environmental conditions often have reduced crop yields, but pre-exposure to mild stress can prepare plants for subsequent challenges. This study investigated the effects of herbicide sub-doses on oxidative stress caused by waterlogging and the potential for waterlogging to mitigate herbicide injury in soybean crops. The results showed that early exposure to a sub-dose of oxyfluorfen enhanced the plants' ability to tolerate waterlogging, while pre-treatment with the herbicide paraquat did not have significant effects. Additionally, pre-exposure to waterlogging reduced the damage caused by herbicides, suggesting the existence of cross-tolerance between herbicides and waterlogging in soybean plants.
ACTA PHYSIOLOGIAE PLANTARUM
(2023)
Article
Chemistry, Physical
Jose A. S. Laranjeira, Sergio A. Azevedo, Guilherme S. L. Fabris, Anderson R. Albuquerque, Mateus M. Ferrer, Julio R. Sambrano
Summary: This study investigates the surface-dependent properties and morphological transformation routes of rutile germanium dioxide using density functional theory and the Wulff construction procedure. The results show that different coordination breakages on the outermost polyhedra are related to various factors such as atomic charges, band gap, stability, and Fermi energy. Additionally, cubic, octahedral, or hexadecahedral morphologies of rutile germanium dioxide have potential photocatalytic activity for hydrogen production.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Maria Joseita dos Santos Costa, Aline Estefany Brandao Lima, Ester Pamponet Ribeiro, Gilson dos Santos Costa, Elson Longo, Geraldo Eduardo da Luz, Laecio Santos Cavalcante, Reginaldo da Silva Santos
Summary: This paper discusses a facile method for preparing transition metal tungstate thin films and their remarkable photoelectrochemical properties. The films were deposited onto conductive fluorine-doped tin oxide (FTO) glass substrate. The results show that the films have crystalline structures and nanostructured materials. They also demonstrate indirect transitions and successful application as photoanodes in a photoelectrochemical cell under polychromatic irradiation. This work provides a comparative and comprehensive study on AWO(4) films and suggests their potential applications in water splitting reactions and other photoelectrocatalytic processes.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Polymer Science
Fernando C. M. Freire Filho, Josiane A. Santos, Alex O. Sanches, Eliton S. Medeiros, Jose A. Malmonge, Michael J. Silva
Summary: The effects of multiwall carbon nanotubes (MWCNTs) on the electrical, dielectric, and piezoelectric properties of the ferroelectric ceramic/castor-oil polyurethane (PUR) composite films were investigated. The addition of MWCNTs significantly enhanced the electrical and piezoelectric properties of the composite films by acting as conductive bridges between the lead zirconate titanate (PZT) particles. The dispersion of MWCNT nanoparticles also improved the poling effectiveness and increased the d(33) coefficient of the three-phase piezoelectric composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Catia Liane Ucker, Vitor Goetzke, Fabio Calcagno Riemke, Marcely Echeverria Oliveira, Neftali Lenin Villarreal Carreno, Fernando Dal Pont Morisso, Marcio Daldin Teodoro, Valmor R. Mastelaro, Mario Lucio Moreira, Cristiane Wienke Raubach, Sergio da Silva Cava
Summary: In this study, Nb2O5 inserted with Fe was synthesized using the microwave-assisted hydrothermal method. The insertion of Fe promoted the formation of pores and decreased the band gap of Nb2O5. The 1%Fe-Nb2O5 sample showed the best photocatalytic discoloration result. The increase in ion concentration led to a decrease in photocatalytic performance. The factorial design experiment revealed the significant effects of catalyst type, catalyst dosage, pH, and reaction time on the degradation of RhB.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Catia L. Ucker, Suelen R. Almeida, Renato G. Cantoneiro, Lisiane O. Diehl, Sergio Cava, Mario L. Moreira, Elson Longo, Cristiane W. Raubach
Summary: In this study, a calcium titanate-zinc sulfide heterostructure was successfully assembled using a microwave-assisted solvothermal method. The heterostructure showed enhanced photocatalytic activity for the degradation of organic dyes, making it a promising candidate for water decontamination.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Analytical
Rafael Aparecido Ciola Amoresi, Noemi Angelica Vieira Roza, Talita Mazon
Summary: In this study, a flexible electrochemical immunosensor based on CeO2 nanorods immobilized with CRP antibody was developed for the detection of cardiovascular disease biomarker. The CeO2 nanorods were obtained by microwave-assisted hydrothermal method and characterized by XRD, TEM, and XPS. The immunosensor's working electrode was prepared by dispersing the nanorods in organic solvent, functionalizing them with cystamine and glutaraldehyde, and then modifying them with CRP antibody. The developed immunosensor exhibited good reproducibility, a wide detection range, and a low detection limit, making it suitable for point-of-care applications.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Thiago A. Lodi, Gustavo Galleani, Leonnam G. Merizio, Luiz G. Jacobsohn, Valmor R. Mastelaro, Andrea S. de Camargo
Summary: NaPO3-20Ga(2)O(3)-xNa(2)WO(4) (x = 0, 1, 3, 5 and 10% mol) tungsten gallium-phosphate glasses were synthesized and evaluated as potential intrinsic glass scintillators due to their high chemical stability and excellent optical properties. Increasing Na2WO4 content led to a decrease in OH- groups and the presence of sole W6+ species. The glasses exhibited high transmittance (around 90%) over a wide spectral range (400 to 2500 nm) and luminescence emission characteristic of the WO42- complex with average lifetimes ranging from 32 to 20 μs. Cryogenic temperatures resulted in a significant increase in luminescence emission for the NaPGaW glasses.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Multidisciplinary
Lucas S. Ribeiro, Renata L. Sala, Thaiane A. Robeldo, Ricardo C. Borra, Emerson R. Camargo
Summary: Conventional systemic drug delivery methods are less effective compared to localized delivery systems. This study developed thermoresponsive nanocomposites based on poly(N-vinylcaprolactam) and silica particles for efficient and controlled release of hydrophobic and hydrophilic drugs. The nanocomposites exhibited improved rheological properties and prevented diffusion away from the injection site. The synthesized materials achieved controlled drug release for 7 days and showed promising inhibitory effects on carcinoma cells while being non-toxic to healthy cells.
Article
Chemistry, Physical
Adriana Alencar Santos, Jean Valdir Uchoa Teixeira, Carlos Alberto Fonzar Pintao, Diego Rafael Nespeque Correa, Carlos Roberto Grandini, Paulo Noronha Lisboa-Filho
Summary: Developing novel titanium alloys suitable for long-term use in orthopedic and dental prostheses is crucial for clinical needs to prevent adverse implications and costly procedures. This study investigated the corrosion and tribocorrosion behavior of two recently developed titanium alloys, Ti-15Zr and Ti-15Zr-5Mo, and compared them with CP-Ti G4. The results showed that Ti-15Zr and Ti-15Zr-5Mo exhibited advantageous properties in the electrochemical and tribocorrosion tests compared to CP-Ti G4, indicating the potential for biomedical applications.
Article
Engineering, Biomedical
Juliani Caroline Ribeiro de Araujo, Leonardo Alvares Sobral Silva, Vinicius Almeida de Barros Lima, Tiago Moreira Bastos Campos, Paulo Noronha Lisboa Filho, Roberta Okamoto, Luana Marotta Reis de Vasconcellos
Summary: With increasing life expectancy, the prevalence of osteoporosis has risen, leading to a search for strategies to regenerate bone tissue. The sonochemical technique was used to functionalize bioglass, resulting in modified surface characteristics. In vitro tests showed favorable cell adhesion and differentiation, with no cytotoxicity observed. Animals treated with teriparatide demonstrated new bone formation, indicating positive effects on bone tissue. Further studies are required to investigate the long-term effects of the interaction between bioglass and teriparatide.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mariana A. M. Rezende, Pedro P. Gromboni, Patricia G. Corradini, Almir Sales, Lucia H. Mascaro
Summary: The water treatment sludge (WTS) is a complex residue that consists of organic and inorganic matter in various states. Improper disposal of WTS can negatively impact the environment, causing a decrease in dissolved oxygen and an increase in metal concentration in watercourses. This study evaluated the effects of using WTS as a substitute for natural sand in cementitious composite on the physical and mechanical properties of concrete, as well as its corrosion resistance.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2023)