Article
Chemistry, Multidisciplinary
Mohammad Javad Afshari, Cang Li, Jianfeng Zeng, Jiabin Cui, Shuwang Wu, Mingyuan Gao
Summary: This study reports a biocompatible, self-illuminating probe with second near-infrared emission for improving the cytotoxicity concerns, penetration depth, and spatiotemporal resolution of bioluminescence imaging. It has been successfully applied for in vivo tumor imaging in mice.
Article
Chemistry, Physical
Yu Guo, Guoliang Shi, Teng Guo, Junhua Chen, Zhijie Ding, Nianshou Cheng, Ran Ding, Miaomiao Jiang, Weizhou Jiao, Youzhi Liu
Summary: The surface of SiC was deoxidized by NaOH etching treatment, leading to an increase in photocatalytic efficiency. The alkali corrosion resulted in a thinner blocking layer and more electrophilic centers on the surface. Superoxide radicals were identified as the main reactive species in the photocatalytic process.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Biomedical
Slila Chayanun, Theerapat Chanamuangkon, Budsaraporn Boonsuth, Aldo R. Boccaccini, Boonrat Lohwongwatana
Summary: Polyetheretherketone (PEEK) has become an alternative to conventional metal implants due to its superior mechanical properties and chemical stability. However, its bio-inertness limits its applications. This study combines CO2 laser machining with sulfonation to enhance the bioactivity of PEEK and strengthen the implant-bone interface. The combination treatment shows the highest mineralization and ALP activity, providing a promising pathway for future PEEK-based orthopedic applications.
MATERIALS TODAY BIO
(2023)
Article
Chemistry, Analytical
Yong Jin Ahn, Seong Hyun Han, Gi-Ja Lee
Summary: The developed silver nanoprisms-coated H2S sensing paper shows good sensitivity, high selectivity, good reproducibility and stability, and a fast response time, making it a reliable tool for on-site colorimetric detection of free H2S gas released from garlic.
Article
Chemistry, Physical
Zahrah Ramadlan Mubarokah, Norsuria Mahmed, Mohd Natashah Norizan, Ili Salwani Mohamad, Mohd Mustafa Al Bakri Abdullah, Katarzyna Bloch, Marcin Nabialek, Madalina Simona Baltatu, Andrei Victor Sandu, Petrica Vizureanu
Summary: A silver sulfide (Ag2S) semiconductor photocatalyst film was successfully synthesized using a solution casting method. The study showed that incorporating Ag2S powder into cellulose films reduced the peak intensity of oxygen-containing functional groups, indicating the formation of a composite film. The crystal structure analysis confirmed a monoclinic acanthite Ag2S structure for all prepared samples, and the photocatalytic efficiency of CF/comAg(2)S and CF/syntAg(2)S films was significantly higher compared to bare Ag2S powder under sunlight exposure.
Article
Engineering, Environmental
Zhineng Hao, Fasong Li, Rui Liu, Xiaoxia Zhou, Yujing Mu, Virender K. Sharma, Jingfu Liu, Guibin Jiang
Summary: The formation of silver nanoparticles in the atmosphere via reduction of Ag(I) by SO2 in moist environments is a previously unreported phenomenon, involving complex chemical processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Kerong Yang, Weijiang Chen, Yushun Zhao, Yu He, Xin Chen, Bin Du, Wei Yang, Song Zhang, Yufei Fu
Summary: This study develops a general strategy to improve the dielectric strength of epoxy polymer matrix by constructing interface charge traps, using the -CF3 group in partial replacement of the -CH3 group. This strategy increases the dielectric strength and surface breakdown voltage while maintaining mechanical and thermal properties, holding potential for wide application in future electrical and electronic equipment requiring resilience to high-voltage stress.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Namhun Kwon, Juyeon Yoo, Keunhyuk Ryu, Hyeongsub So, Kyou-hyun Kim, Kun-Jae Lee
Summary: Transparent electrodes are usually manufactured by depositing electrical materials on selective substrates, but residual PVP from the fabrication process can negatively impact electrical conductivity. Surface modification using an alkaline solution can effectively remove residual PVP and enhance electrical conductivity.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Jing Tang, Huimin Sun, Xiuting Li, Fangchu Liang, Tao Jiang
Summary: By etching silver nanowires with different amounts of aqua regia, more hot spots can be formed, resulting in higher sensitivity and uniformity in SERS signals. The limit of detection and maximum enhancement factor obtained on the optimized substrate are both higher than those of smooth silver nanowires.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Inorganic & Nuclear
Minu Yadav, Raksha Singh, Anurag Kumar Singh, Manish Sharma, Ida Tiwari, Kaushal Kumar Upadhyay
Summary: We report a simple and easy to perform experimental protocol for highly selective and real time dual mode detection of hydrogen sulfide (H2S) in aqueous medium through galactose activated silver nanoresonators. The optimized silver nanosensor exhibited an excellent linear response in the concentration range of 50-130 nM with a low limit of detection (LOD) of 2.83 nM.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Zi-Han Hsu, Li Hsu, Chia-Chi Huang
Summary: This report introduces a method for preparing polyacrylamide materials with unique surface morphology. By cross-linking and reduction reactions, the smooth polymer surface is transformed into submicron cubic clusters impregnated with silver nanoparticles. The resulting material resembles the Great Barrier Reefs in overall morphology and features a high content of active silver nanostructures. It demonstrates versatility in surface-enhanced Raman scattering and methanolysis catalysis. These methods enlarge the surface area of the shape-adapting polymer material while generating minimal chemical waste.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Zhaojie Wang, Qi Hou, Xingheng Zhang, Huanhuan Liu, Xiaojing Lin, Hongyu Chen, Ruidong Ding, Shuxian Wei, Xiaoqing Lu, Siyuan Liu
Summary: This study proposes a method of enhancing the activity of catalysts for alkaline water electrolysis through etching and doping. The etching of silver-doped cobalt phosphate catalysts with alkaline solutions can increase the number of active sites and electrical conductivity, thereby significantly improving electrocatalytic performance. The catalyst exhibits excellent stability and efficient electrolysis performance under industrial conditions.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Coatings & Films
Xianhua Tan, Yuzhou Zhang, Xingyue Liu, Shuang Xi, Zhenyu Yan, Zhiyong Liu, Tielin Shi, Guanglan Liao
Summary: The study demonstrated a durable lubricant-infused surface with enhanced durability by introducing micro pyramidal holes and porous nanostructures. The surface has low sliding angles and ice adhesion strength, maintaining stability even after icing/deicing cycles.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Thermodynamics
Punj Lata Singh, Basant Singh Sikarwar, Mukesh Ranjan, K. Muralidhar
Summary: Surface engineering of copper substrates for vapor condensation in an atmospheric water generator is studied in this research to enhance the condensation rate and produce more potable water. Three scalable chemical processes and SEM and EDS analysis are used for substrate preparation and characterization. The results show that the superhydrophobic copper substrate prepared by the proposed method has excellent performance in condensing water vapor from moist air.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Engineering, Industrial
Haoyue Li, Wenhu Xu, Liqun Li, Hongbo Xia, Xi Chen, Bo Chen, Xiaoguo Song, Caiwang Tan
Summary: Chemical-etched surface texturing has a significant impact on wetting behavior, improving the wettability of aluminum/stainless steel by adjusting surface roughness. This study provides guidance for processing technologies such as brazing, welding, and coating.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Biochemical Research Methods
Jose Lifante, Maria de la Fuente-Fernandez, Marta Roman-Carmena, Nuria Fernandez, Daniel Jaque Garcia, Miriam Granado, Erving Ximendes
Summary: The prevalence of nonalcoholic fatty liver (NAFLD) is increasing worldwide, and accurate diagnosis is crucial to prevent complications. Ultrasonography may underestimate NAFLD prevalence, hence a need for a noninvasive method. In this study, an integrated approach using autofluorescence and reflectance signals accurately estimated triglyceride density in the livers of mice.
JOURNAL OF BIOPHOTONICS
(2023)
Article
Materials Science, Multidisciplinary
Wojciech M. Piotrowski, Riccardo Marin, Maja Szymczak, Emma Martin Rodriguez, Dirk H. Ortgies, Paloma Rodriguez-Sevilla, Miroslav D. Dramicanin, Daniel Jaque, Lukasz Marciniak
Summary: Lifetime-based luminescence thermometry enables accurate deep-tissue monitoring of temperature changes, but short lifetimes and poor brightness limit its performance. A solution to these limitations is the design and optimization of luminescent nanothermometers co-doped with transition metal and lanthanide ions, which exhibit strong near-infrared emission and long temperature-dependent photoluminescence lifetime. These nanothermometers, combined with a custom-made instrument, allow for obtaining 2D thermal maps for deep-tissue thermal mapping. This study provides foundations for the deployment of lifetime-based thermometry for accurate deep-tissue temperature monitoring.
ADVANCED OPTICAL MATERIALS
(2023)
Review
Pharmacology & Pharmacy
Karen Escobar, Karla A. Garrido-Miranda, Ruth Pulido, Nelson Naveas, Miguel Manso-Silvan, Jacobo Hernandez-Montelongo
Summary: This review comprehensively covers the chemical properties and synthesis routes of CD/CTR cross-linking, as well as their applications as drug-delivery systems on different substrates. The study found that the CD/CTR biopolymers were nontoxic, environmentally friendly, and inexpensive, making them widely used in coating implants and biomedical materials. The importance of pretreatment methods on substrates and the analysis of release mechanisms, including the Korsmeyer-Peppas mathematical model, were also discussed. The flexibility of CD/CTR in hosting a wide variety of drugs, integrating with diverse implantable materials, and controllable release kinetics provide a range of advantages for future uses.
Article
Materials Science, Multidisciplinary
Paloma Rodriguez-Sevilla, Graham Spicer, Ana Sagrera, Alejandro P. Adam, Alejo Efeyan, Daniel Jaque, Sebastian A. Thompson
Summary: Fast, accurate, reliable, and remote measurement of intracellular temperature is crucial for understanding cellular processes. Nanothermometers based on GFP provide temperature readouts from the analysis of its luminescence polarization, but their reliability is still debated. This study sheds light on the issue by identifying cell activity as a bias mechanism that affects the reliability of intranuclear thermal measurements using GFP and other widely used thermometers. It emphasizes the importance of judiciously assessing the performance and reliability of chosen intracellular thermometers to advance the field and ensure indisputable results.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Khouloud Hamraoui, Vivian Andrea Torres-Vera, Irene Zabala Gutierrez, Alejandro Casillas-Rubio, Mohammed Alqudwa Fattouh, Antonio Benayas, Riccardo Marin, Marta Maria Natile, Miguel Manso Silvan, Juan Rubio-Zuazo, Daniel Jaque, Sonia Melle, Oscar G. Calderoin, Jorge Rubio-Retama
Summary: Rare-earth doped nanoparticles (RENPs) have attracted increasing interest in materials science due to their optical, magnetic, and chemical properties. RENPs can emit and absorb radiation in the second biological window (NIR-II, 1000-1400 nm), making them ideal optical probes for in vivo imaging. The optimization of thermal sensitivity in RENPs depends on the core chemical composition and size, active-shell, and outer-inert-shell thicknesses.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Liyan Ming, Irene Zabala-Gutierrez, Paloma Rodriguez-Sevilla, Jorge Rubio Retama, Daniel Jaque, Riccardo Marin, Erving Ximendes
Summary: This article introduces a luminescence lifetime estimation method based on U-NET to improve the estimation accuracy under extremely low signal-to-noise ratio conditions. The effectiveness of U-NET is demonstrated in luminescence lifetime thermometry and its sensing performance improvement is verified through two experiments under extreme measurement conditions.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Carlos D. S. Brites, Riccardo Marin, Markus Suta, Albano N. Carneiro Neto, Erving Ximendes, Daniel Jaque, Luis D. Carlos
Summary: Luminescence (nano)thermometry is a remote sensing technique that utilizes the temperature dependency of luminescence features to measure temperature. It has potential applications in various fields and requires the establishment of a theoretical background, standardized practices, and improved readouts through multiparametric analysis and artificial intelligence algorithms. Challenges in luminescence thermometry and the need for continuous innovation are also discussed.
ADVANCED MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Nelson Naveas, Ruth Pulido, Vicente Torres-Costa, Fernando Agullo-Rueda, Mauricio Santibanez, Francisco Malano, Gonzalo Recio-Sanchez, Karla A. Garrido-Miranda, Miguel Manso-Silvan, Jacobo Hernandez-Montelongo
Summary: This study proposes the formation of antibacterial films with silver nanoparticles embedded in carboxymethylcellulose/chitosan multilayers by the layer-by-layer method. The films exhibited high antibacterial activity against both Escherichia coli and Staphylococcus aureus, indicating their potential for biomedical applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Amalia Coro, Ada Herrero Ruiz, Mateo Pazo-Gonzalez, Alonso Sanchez-Cruz, Tobias Busch, Alejandro Hernandez Medel, Erving C. Ximendes, Dirk H. Ortgies, Rosalia Lopez-Mendez, Ana Espinosa, Dorleta Jimenez de Aberasturi, Daniel Jaque, Nuria Fernandez Monsalve, Enrique J. de la Rosa, Catalina Hernandez-Sanchez, Emma Martin Rodriguez, Beatriz H. Juarez
Summary: In this study, the application of Ag2S nanoparticles in ocular imaging was extended by preparing them with a biocompatible amphiphilic block copolymer. This method protects the photoluminescence properties of the nanoparticles and allows for the controlled preparation of submicrometric scattering centers, enhancing colloidal stability and biocompatibility. The resulting nanoparticles exhibit improved contrast for optical coherence tomography and near-infrared imaging.
Article
Chemistry, Multidisciplinary
Rodrigo Calvo, Valerio Pini, Andreas Thon, Asis Saad, Antonio Salvador-Matar, Miguel Manso Silvan, Oscar Ahumada
Summary: A novel spectrophotometric method, called Amplitude-Resolved Single Particle Spectrophotometry, is presented in this study to measure the individual sizes of thousands of nanoparticles with nanometric accuracy in just a few minutes. This new method shows excellent accuracy and adaptability to more complex particle geometries.
Article
Chemistry, Multidisciplinary
Ana C. C. Soares, Tasso O. Sales, Erving C. Ximendes, Daniel Jaque, Carlos Jacinto
Summary: In recent years, there has been significant interest in infrared emitting luminescent nanothermometers due to their potential for new diagnosis and therapy procedures. However, concerns have been raised regarding their reliability, as tissues can induce spectral distortions even in the commonly used second biological window. In this study, the effectiveness of shifting the operation range of these nanothermometers to the third biological window is demonstrated, showing minimal distortion by tissue and opening the path to reliable luminescence thermometry. Advanced analysis of emission spectra allows for sub-degree thermal uncertainties.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Physical
Nelson Naveas, Ruth Pulido, Carlo Marini, Pierluigi Gargiani, Jacobo Hernandez-Montelongo, Ivan Brito, Miguel Manso-Silvan
Summary: In this report, the DFT + U + V approach was used to simulate the properties of Fe3O4 and compare them with experimental data. The study showed that DFT + U + V can improve the structural, magnetic, and electronic properties of Fe3O4 compared to approximate DFT and DFT + U. Furthermore, the observations highlighted the significance of intersite interactions in the theoretical analysis of Fe3O4.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Chemistry, Multidisciplinary
Rodrigo Calvo, Isabel Rodriguez Mariblanca, Valerio Pini, Monica Dias, Virginia Cebrian, Andreas Thon, Asis Saad, Antonio Salvador-Matar, Oscar Ahumada, Miguel Manso Silvan, Aaron E. Saunders, Wentao Wang, Adonis Stassinopoulos
Summary: This paper focuses on the importance of multifunctional nanoparticles in biomedical applications and optimizing their fabrication methods. Special attention is given to size-dependent properties, biocompatibility, and challenges that may arise. Various novel methods for characterizing the magnetic gold particles are also discussed to ensure their quality and applicability.
Article
Materials Science, Multidisciplinary
Wojciech M. Piotrowski, Maja Szymczak, Emma Martin Rodriguez, Riccardo Marin, Marta Henklewska, Blazej Pozniak, Miroslav Dramicanin, Lukasz Marciniak
Summary: The increasing popularity of luminescent nanothermometry in recent years is due to its potential application in biomedicine. This study introduces a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes, offering high sensitivity and low cytotoxicity, making it suitable for bioapplications.
MATERIALS CHEMISTRY AND PHYSICS
(2024)