Article
Optics
Xinqiang Li, Jin Shen, Mengjie Wang, Tongtong Mu, Wei Liu, Yajing Wang, Talha Younas, Mingliang Gao, Qin Wang
Summary: In this study, a method has been proposed to obtain the velocity and particle size distribution of flowing aerosols through the analysis of light intensity autocorrelation function (ACF) and the application of regularization method. The results from simulations and experiments demonstrate that the proposed method can accurately measure the velocity and particle size distribution of flowing aerosols under different noise levels.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Tongtong Mu, Jin Shen, Mengjie Wang, John C. Thomas, Xinjun Zhu, Xi Yuan, Wei Liu, Xianming Sun, Yajing Wang, Jinzhuang Han, Zhenming Liu
Summary: The study shows that increasing flow velocity affects the recovery of particle size distribution via dynamic light scattering, particularly for unimodal and bimodal PSDs. Increasing velocity can lead to errors in peak position and broadening of PSD for unimodal PSD, and can result in a single-peak PSD for bimodal PSD. There is a correlation between velocity and signal noise in measurements, with larger particles having lower signal-to-noise ratio.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Chemical
Qin Wang, Jin Shen, John C. Thomas, Mengjie Wang, Wei Liu, Yajing Wang
Summary: Dynamic light scattering from ultra-low concentration suspensions often leads to unreliable recovery of particle size distribution due to non-Gaussian terms in the autocorrelation functions. This study proposes an improved method that analyzes the intensity autocorrelation function to determine parameters describing the non-Gaussian term and then uses these parameters to create a better theoretical model. The proposed method significantly improves the accuracy of particle size distribution recovery and yields similar results to measurements at normal particle concentrations.
Article
Optics
Xiaohui Guo, Miao Chen, Li Peng, Jian Qiu, Kaiqing Luo, Dongmei Liu, Peng Han
Summary: An adaptive step-size strategy is proposed in this study to improve the stability and accuracy of the non-negative least squares inversion algorithm for dynamic light scattering. Optimizing the step size for constructing the kernel matrix can enhance the accuracy and stability of the final results.
OPTICS COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Polina Rud, Sergei Chapek, Pavel Medvedev, Oleg Polozhentsev, Sergey Soldatov, Anton Bagliy, Alexander Guda, Alexander Soldatov, Mikhail Soldatov
Summary: In this study, we designed 3D printed devices for dynamic light scattering (DLS) characterization, which can provide in situ monitoring of size distribution in small sample solutions. This new approach allows for automated microfluidic synthesis and provides feedback for optimization algorithms.
MICROCHEMICAL JOURNAL
(2024)
Article
Engineering, Chemical
Jihyeon Lee, Siqin He, Guanyu Song, Christopher J. Hogan Jr
Summary: The aerosol technique, differential mobility analysis (LNS), is found to be more repeatable and accurate in characterizing CMP slurries compared to dynamic light scattering (DLS). LNS not only captures multimodal size distributions but also provides more precise information on the size distribution of slurry particles.
Article
Optics
Mei Chen, Yanghong Wang, Wei Li, Min Xia, Ziqiang Meng, Li Xia
Summary: In this study, a novel integrated dual-angle DLS prototype was designed to measure particle size by combining microfluidic chip and fiber optic probes. The instrument achieved high accuracy at high concentrations and small sample consumption using a linear regression model for calibration. Additionally, the implementation of dual-angle online measurement in the fiber DLS system with microfluidic chip showed improved repeatability compared to single-angle DLS measurement.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Physics, Fluids & Plasmas
Alexander Yu. Cherny, Eugen M. Anitas, Vladimir A. Osipov, Alexander I. Kuklin
Summary: This article considers the scattering exponents in small-angle scattering from power-law polydisperse surface and mass fractals. It is demonstrated that a set of fractals, with sizes distributed according to a power law, can alter its fractal dimension when the power-law exponent is sufficiently large. Consequently, a scattering exponent corresponding to this dimension arises due to spatial correlations among the positions of different fractals. For high values of momentum transfer, the correlations have no impact, and the resulting scattering intensity is determined by the sum of intensities of all constituent fractals. Restrictions on the power-law exponents are identified. The obtained results generalize Martin's formulas for the scattering exponents of polydisperse fractals.
Article
Chemistry, Physical
Alexander Yu. Cherny, Eugen M. Anitas, Vladimir A. Osipov
Summary: This study explores the correlation properties of a dense random packing of disks with a power-law distribution of radii. It investigates the structure factor, mass-radius relation, and pair distribution function of the disk centers. The research reveals that such a packing exhibits fractal properties in both one and two dimensions. The findings also include an approximate relation for the structure factor in arbitrary dimensions, which can be used as a fitting formula in small-angle scattering.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Multidisciplinary Sciences
Nicole L. McIntosh, Geoffrey Y. Berguig, Omair A. Karim, Christa L. Cortesio, Rolando De Angelis, Ayesha A. Khan, Daniel Gold, John A. Maga, Vikas S. Bhat
Summary: Size exclusion chromatography coupled to multiangle light scattering is a straightforward method for comprehensive characterization of AAV capsids, providing detailed information with high accuracy and precision. By using new equations and intrinsic properties, multiple physical attributes of AAV can be quantified in a short time, making this method a powerful tool for future gene therapy programs.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Dirk Honecker, Philipp Bender, Yannic Falke, Dominique Dresen, Matthias Kundt, Annette M. Schmidt, Andreas Tschoepe, Michael Sztucki, Manfred Burghammer, Sabrina Disch
Summary: The magnetic field-induced actuation of colloidal nanoparticles has made significant progress and has the potential to play an important role in the field of microrobotics.
NANOSCALE ADVANCES
(2022)
Article
Optics
Xiang Lu, Herbert Gross
Summary: In this study, the impact of different frequency components of surface errors induced by diamond-turned surface grinding on image quality is analyzed, and a Wigner function-based approach is proposed to model light as partially coherent. By selecting the proper definition of light coherence, a unified model is presented that combines statistical and deterministic models of surface errors, enabling efficient, simultaneous simulation of multiple scattering from high- and mid-spatial frequency surface errors, as well as the interference and edge diffraction of light.
Article
Optics
Liu Zeqi, Cai Xiaoshu, Paul Briard, Zhou Wu
Summary: In this study, a method called depolarized-polarized image-based dynamic light scattering (DIDLS) is proposed for measuring the size and size distribution of 2D nanorods. By analyzing the correlation degree function of consecutive polarized dynamic images and calculating the translational and rotational diffusion coefficients, the length, ratio of length to diameter, and two-dimensional particle distribution can be estimated. The influence of laser wavelength on the measurement results is also analyzed.
ACTA OPTICA SINICA
(2021)
Article
Chemistry, Analytical
Yan Han, Lei Ding, Yingping Wang, Haiyang Zheng, Li Fang
Summary: We developed an experimental apparatus that combines polarized light scattering and angle-resolved light scattering measurement technologies to quickly identify the shape of individual aerosol particles. By statistically analyzing the scattered light data of Oleic acid, rod-shaped Silicon dioxide, and other particles with typical shape characteristics, we used the partial least squares discriminant analysis (PLS-DA) method to analyze the scattered light of aerosol samples based on particle size screening. We established a shape recognition and classification method for individual aerosol particles based on nonlinear processing and grouping of spectral data with the area under the receiver operating characteristic curve (AUC) as a reference. Experimental results demonstrate that this classification method can effectively discriminate between spherical, rod-shaped, and other non-spherical particles, providing valuable information for atmospheric aerosol measurement and facilitating traceability and exposure hazard assessment of aerosol particles.
Article
Pharmacology & Pharmacy
Charisopon Chunhachaichana, Somchai Sawatdee, Supagorn Rugmai, Teerapol Srichana
Summary: This study aimed to develop and measure the hydrodynamic particle size of sildenafil citrate nanoparticles dispersed in a pressurized metered-dose inhaler (pMDI). The aerosol properties and charges of the emitted particles were also monitored. Different formulations of the pMDI were prepared and analyzed, and the results showed differences in particle size, size distribution, and charge profile depending on the formulation composition.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Giovanni Spiaggia, Patricia Taladriz-Blanco, Stefan Hengsberger, Dedy Septiadi, Christoph Geers, Aaron Lee, Barbara Rothen-Rutishauser, Alke Petri-Fink
Summary: Commercial static cell culture substrates have limited representation of in vivo biomechanical cues due to their inability to change physical properties over time. Gold nanoparticles have been used as transducers to overcome this limitation. In this study, gold nanorods were embedded in an elastomeric matrix to fabricate biocompatible light-responsive substrates. The analysis of the nanocomposite films showed a homogeneous heat distribution and increased stiffness when irradiated with NIR light. These films were biocompatible and cells remained viable, exhibiting a greater proliferation rate and stronger focal adhesion clustering.
Article
Nanoscience & Nanotechnology
Ana Vieira, Laura Rodriguez-Lorenzo, Isabel B. Leonor, Rui L. Reis, Begona Espina, Marilia Barreiros dos Santos
Summary: This study demonstrates an innovative approach to enhance antibacterial surfaces by incorporating titanium dioxide nanoparticles into microstructured surfaces. The engineered surfaces effectively reduced bacterial colonization through a combination of UVC disinfection and TiO2 photocatalysis. The results suggest that this synergistic strategy holds great potential for various applications in healthcare and biotechnology markets.
ACS APPLIED BIO MATERIALS
(2023)
Article
Biochemical Research Methods
Cristian Suarez-Oubina, Paloma Herbello-Hermelo, Natalia Mallo, Maria Vazquez, Santiago Cabaleiro, Ivone Pinheiro, Laura Rodriguez-Lorenzo, Begona Espina, Pilar Bermejo-Barrera, Antonio Moreda-Pineiro
Summary: This research focuses on using single-cell inductively coupled plasma-mass spectrometry (scICP-MS) to assess the associations of titanium dioxide nanoparticles (TiO2 NP) and silver nanoparticles (Ag NP) in cell lines derived from aquaculture species. The optimization studies aim to avoid high dissolved background, multi-cell peak coincidence, and possible spectral interferences. The results show that TiO2 NPs mainly interact with the outer cell membranes, while Ag NPs can enter the cells.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Jessica Caldwell, Celine Loussert-Fonta, Gaelle Toullec, Niclas Heidelberg Lyndby, Beat Haenni, Patricia Taladriz-Blanco, Begona Espina, Barbara Rothen-Rutishauser, Alke Petri-Fink
Summary: Many researchers are studying the interaction between microplastics and marine fauna, aiming to understand exposure pathways and concentrations, as well as the impact of such interactions. This study focused on how Cassiopea andromeda jellyfish interacted with microplastics, using different analytical techniques. The results showed that the fluorescent microplastics could be successfully detected and their interaction with the jellyfish was likely influenced by the properties of the microplastics.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Elza Fonseca, Maria Vazquez, Laura Rodriguez-Lorenzo, Natalia Mallo, Ivone Pinheiro, Maria Ligia Sousa, Santiago Cabaleiro, Monica Quarato, Miguel Spuch-Calvar, Miguel A. Correa-Duarte, Juan Jose Lopez-Mayan, Mick Mackey, Antonio Moreda, Vitor Vasconcelos, Begona Espina, Alexandre Campos, Mario Jorge Araujo
Summary: In this study, the effects of citrate-coated TiO2 nanoparticles (TiO2 NPs) of two different primary sizes on the liver of flatfish turbot were investigated. The results showed that the abundance of lipid droplets in hepatocytes varied depending on the size of TiO2 NPs, with an increase in turbot exposed to smaller NPs and a depletion with larger NPs. Gene expression related to oxidative and immune responses as well as lipid metabolism was also influenced by TiO2 NPs. These findings emphasize the importance of scrutinizing the risks associated with exposure to NPs with distinct properties in aquatic organisms.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Fabienne Schwab, Barbara Rothen-Rutishauser, Aline Scherz, Thierry Meyer, Bedia Beguem Karakocak, Alke Petri-Fink
Summary: Waste containing nanomaterials, known as nanowaste, is a global safety concern that requires specific environmentally sound waste management and regulation.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Christina Glaubitz, Laetitia Haeni, Eva Susnik, Barbara Rothen-Rutishauser, Sandor Balog, Alke Petri-Fink
Summary: Understanding the interaction between cells and nanoparticles is crucial for assessing their potential hazard. Quantifying and interpreting dose-response relationships through mathematical models in cell culture experiments is common, but these models need to consider the meniscus effect caused by the aqueous cell culture media. This study addresses the impact of the meniscus on nanoparticle dosimetry, presents an advanced mathematical model, and suggests practical solutions to improve reproducibility and harmonization.
Article
Chemistry, Physical
Soukayna Belekbir, Mohammed El Azzouzi, Laura Rodriguez-Lorenzo, Adnane El Hamidi, Juan Arturo Santaballa, Moises Canle
Summary: One of the main challenges in photocatalysis is to find a stable and effective photocatalyst that works well under sunlight. In this study, the photocatalytic degradation of phenol in aqueous solution using TiO2-P25 impregnated with different concentrations of Co was investigated. Co(0.1%)/TiO2 showed the highest effectiveness under NUV-Vis irradiation, with approximately 96% TOC removal. UV radiation, on the other hand, only achieved 23% removal.
Article
Chemistry, Analytical
Juan Jose Lopez-Mayan, Blanca Alvarez-Fernandez, Elena Pena-Vazquez, Maria Carmen Barciela-Alonso, Antonio Moreda-Pineiro, Julie Maguire, Mick Mackey, Monica Quarato, Ivone Pinheiro, Begona Espina, Laura Rodriguez-Lorenzo, Pilar Bermejo-Barrera
Summary: A study was conducted to investigate the bioaccumulation of citrate-coated titanium dioxide nanoparticles in red (Palmaria palmata) and green (Ulva sp.) seaweed. The results showed that Ulva sp. had higher titanium concentrations than Palmaria palmata under the same exposure conditions. The titanium concentration in Ulva sp. reached its maximum after 28 days of exposure to 1.0 mgL(-1) of 5 nm TiO(2)NPs. The sizes and concentrations of TiO(2)NPs determined by SP-ICP-MS were similar for both seaweeds, suggesting that the titanium is mainly accumulated in Ulva sp. as ionic titanium or nanoparticles smaller than the limit of detection in size.
Article
Polymer Science
Sara Pereira, Ana Costa-Ribeiro, Pilar Teixeira, Laura Rodriguez-Lorenzo, Marta Prado, Miguel A. Cerqueira, Alejandro Garrido-Maestu
Summary: Chitosan, derived from chitin, possesses antimicrobial activity. Its application as micro- or nanoparticles expands its usage. However, the size of chitosan nanoparticles produced from different starting materials affects their antimicrobial properties.
Article
Food Science & Technology
Eva Susnik, Sandor Balog, Patricia Taladriz-Blanco, Alke Petri-Fink, Barbara Rothen-Rutishauser
Summary: This study investigated the interaction between nanoparticles (NPs) and intestinal epithelial cells, and found that cholera toxin subunit B (CTxB) did not significantly affect the membrane structure of differentiated Caco-2 cells or stimulate NP uptake, but it did reduce NP uptake in macrophages. The presence of CTxB was found to influence the uptake of NPs differently in phagocytic and differentiated intestine cells.
Article
Chemistry, Multidisciplinary
Ivone Pinheiro, Monica Quarato, Antonio Moreda-Pineiro, Ana Vieira, Virginie Serin, David Neumeyer, Nicolas Ratel-Ramond, Sebastien Joulie, Alain Claverie, Miguel Spuch-Calvar, Miguel A. Correa-Duarte, Alexandre Campos, Jose Carlos Martins, Pilar Bermejo-Barrera, Marisa P. Sarria, Laura Rodriguez-Lorenzo, Begona Espina
Summary: Commercial ATO nanoparticles are relatively harmless to zebrafish and marine mussels, but they do affect the developmental parameters of zebrafish. Further research is needed on the accumulation of nanoparticles in the human body.
Article
Materials Science, Multidisciplinary
Ana Vieira, Laura Rodriguez-Lorenzo, Alejandro Garrido-Maestu, Begona Espina, Marilia Barreiros dos Santos
Summary: This study evaluated two main approaches, namely chemical modification and physical modification, for reducing fouling on polyethylene (PE) surfaces. The results showed that chitosan nanoparticles from different sources and micro-topography modification effectively reduced bacterial adhesion. These strategies offer eco-friendly and cost-effective solutions for preventing fouling and extending the lifetime of polymeric surfaces for environmental applications.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Jessica Caldwell, Patricia Taladriz-Blanco, Laura Rodriguez-Lorenzo, Barbara Rothen-Rutishauser, Alke Petri-Fink
Summary: The presence of submicron- and nanoplastic particles has attracted increasing interest, but there are few analytical techniques capable of detecting these small plastic particles at low concentrations. This study investigates the potential of gold nanostar-based SERS substrates for the detection of submicron- and nanoplastic particles. The results demonstrate the promising potential of these substrates for nanoplastic detection, with variations in analytical performance depending on the properties of the plastics being studied.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Chemistry, Analytical
L. G. Valle, B. Santamaria, A. Lavin, M. F. Laguna, L. Rodriguez-Lorenzo, B. Espina, M. Holgado
Summary: In this study, we report the development of a biosensing system based on the Interferometric Optical Detection Method (IODM), using gold nanoparticles as interferometric enhancers to improve the performance of immunoassays. Through experiments and calculations, we demonstrate that the gold nanoparticles act as amplifiers in the IODM and have the potential to be applied in various biological detection applications.
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.
