Article
Materials Science, Multidisciplinary
Rosalba Passalacqua, Salvatore Abate, Federica De Luca, Siglinda Perathoner, Gabriele Centi
Summary: The development of advanced materials with enhanced and unusual properties has been promoted by the increasing knowledge in nanoscience and materials technology. This study presents the results of investigations on composite semiconducting materials. The composites, prepared from different nitrogen precursors and thin films of TiO2 nanotubes, were characterized to understand the relation between photo-behavior and composition. The studied g-C3N4/TiNT heterojunctions showed enhanced photo-electrochemical properties and could be potentially used in H-2 production, solar-light-driven water splitting, and CO2 reduction applications.
Article
Chemistry, Multidisciplinary
Taewan Kim, Meng Xu, Young Jun Lee, Kang Hee Ku, Do Joong Shin, Doh C. Lee, Se Gyu Jang, Hongseok Yun, Bumjoon J. Kim
Summary: The research utilizes self-assembly to form doubly alternating arrays of gold nanoparticles and CdSe/ZnS quantum dots within polystyrene-block-poly(4-vinylpyridine) BCP domains, creating fluorescence-switchable hybrid microspheres. Selective swelling of the particles in different solvents allows for controlled energy transfer and fluorescence switching, demonstrating potential applications in bioimaging, sensing, and diagnostics.
Article
Chemistry, Multidisciplinary
Yue Liu, Qi Zhang, Stefano Crespi, Shaoyu Chen, Xiu-Kang Zhang, Tian-Yi Xu, Chang-Shun Ma, Shang-Wu Zhou, Zhao-Tao Shi, He Tian, Ben L. Feringa, Da-Hui Qu
Summary: Designing photo-responsive host-guest systems using light-driven molecular motors can provide versatile tools for constructing smart systems and materials. The intramolecular cyclization of molecular motors enables the switchable chiral guest recognition, offering a reversible modulation of binding affinity and stereoselectivity in the host-guest interaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Analytical
Yubo Wei, Fang Yu, Zhaxicuo Diao, Ruoping Xu, Hongjing Li, Guiping Qin, Xinrong Guo
Summary: A facile and efficient approach for producing a self-cleaning electrochemical protein-imprinting biosensor based on dual stimuli-responsive memory hydrogels has been described. The biosensor showed excellent self-cleaning behaviors, satisfactory selectivity, good biocompatibility, and stability towards bovine serum albumin, making it suitable for bioanalytical applications involving dual stimuli-responsive behaviors.
Article
Chemistry, Multidisciplinary
Daphne Montizaan, Catherine Saunders, Keni Yang, Sajitha Sasidharan, Sourav Maity, Catharina Reker-Smit, Marc C. A. Stuart, Costanza Montis, Debora Berti, Wouter H. H. Roos, Anna Salvati
Summary: The mechanical properties of nanoparticles affect their uptake in cells. In this study, two nanoparticles with similar size and charge but different mechanical properties were compared in terms of their uptake and behavior in cells. The results show that nanoparticles with different mechanical properties exhibit different uptake behaviors, and different curvature-sensing proteins are involved in the uptake of these nanoparticles in different cell types.
Article
Chemistry, Analytical
M. S. Kumar, Ruchira Nandeshwar, Shailesh B. Lad, Kirti Megha, Maheshwar Mangat, Adrian Butterworth, Charles W. Knapp, Mara Knapp, Paul A. Hoskisson, Damion K. Corrigan, Andrew C. Ward, Kiran Kondabagil, Siddharth Tallur
Summary: A low-cost electrochemical DNA biosensor based on PCB electrodes is presented for monitoring virus amplicons in wastewater, offering advantages such as high sensitivity, reusability, and ease of cleaning. It is capable of detecting SARSCoV-2 and other pathogens, providing valuable insights for researchers in the field.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Prem C. Pandey, Hari Prakash Yadav, Shubhangi Shukla, Roger J. Narayan
Summary: This study utilized PB nanoparticle-modified SPE for the detection and efficient removal of cesium cations, achieving a maximum adsorption capacity of 325 mg.g(-1) and a distribution coefficient of 580 L.g(-1) for Cs+ removal. The ion exchange process in the PB nanoparticle-modified SPE induced a cesium adsorption-dependent chronoamperometric signal based on electron transfer.
Article
Nanoscience & Nanotechnology
Linrong Zhang, Li Wang, Shunhao He, Chengcheng Zhu, Zhongyan Gong, Yulong Zhang, Junjie Wang, Liuyingzi Yu, Kun Gao, Xing Kang, Yaxin Song, Gang Lu, Hai-Dong Yu
Summary: In this study, the sensitivity and stability of organic electrochemical transistors (OECTs) were improved by doping the PEDOT:PSS channel with plasmonic gold nanoparticles (AuNPs) and photo annealing. The doping of AuNPs increased the conductivity of PEDOT:PSS and the photo annealing improved the crystallinity of the PEDOT:PSS channel, leading to an increase in transconductance and cyclic stability. The prepared OECTs were demonstrated to be effective in sensitive detection of glucose within a wide concentration range of 10 nM-1 mM.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Md. Shafiul Islam, Subrata Banik, Maryanne M. Collinson
Summary: Bimetallic nanocomposites and nanoparticles have attracted significant attention due to their superior properties and the synergistic interactions between individual metals. This review focuses on bimetallic nanoporous gold (NPG) and its synthesis methods, modification approaches, characterization techniques, and applications in electrochemical sensing. It provides readers with detailed knowledge about the formation and structure of bimetallic electrodes and their advanced techniques for designing non-enzymatic bimetallic electrochemical nanosensors.
Article
Chemistry, Physical
Hossein Alidaei-Sharif, Hossein Roghani-Mamaqani, Milad Babazadeh-Mamaqani, Keyvan Sahandi-Zangabad, Amin Abdollahi, Mehdi Salami-Kalajahi
Summary: Dual photochromic and photoluminescent latex nanoparticles were synthesized for innovative applications in encryption technology. These nanoparticles exhibited spherical morphologies with narrow size distribution. Modification of the nanoparticles with hydroxyl functional groups allowed the formation of hydrogen bonding with spiropyran chromophore, providing an advantage in the preparation of security anticounterfeiting nanoinks. Additionally, optical analysis showed that reducing the size of the colloidal samples affected their photoluminescence characteristics.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Emanuela Maiorano, Stefano Gianvittorio, Massimiliano Lanzi, Domenica Tonelli, Horst Pick, Andreas Lesch
Summary: This article presents the one-step fabrication of gold films by inkjet printing of a gold precursor ink and its photochemical reduction by UV light exposure. The inkjet printing technique creates precise micrometer-thin reaction volumes on a substrate, allowing for direct light irradiation that reduces the gold precursor to pure and well-adhered Au particles. The process, known as Print-Light-Synthesis (PLS), is economic and environmentally friendly, eliminating the need for stabilizing agents or sacrificial compounds. The gold films have controlled gold loadings in the μg cm(-2) range and show high sensitivity as electrochemical sensors for the detection of 1,4-butanediol.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Analytical
Habdias A. Silva-Neto, Anderson A. Dias, Wendell K. T. Coltro
Summary: This article describes a complete 3D-printed system for bioanalytical applications, with high sensitivity and excellent analytical performance. The system consists of a batch injection analysis (BIA) cell and an electrochemical platform with eight sensing electrodes, all manufactured using 3D printing technology.
Article
Chemistry, Analytical
Arne Behrent, Christian Griesche, Paul Sippel, Antje J. Baeumner
Summary: Laser-induced graphene (LIG) is a promising electrode material for electrochemical point-of-care diagnostics due to its large surface area and excellent electron transfer. The different micromorphologies of LIG can be controlled by altering energy input parameters, with the best electroanalytical material being produced under low and frequent energy input conditions.
Article
Chemistry, Multidisciplinary
Eduardo Gonzalez-Martinez, Sokunthearath (Kevin) Saem, Nadine E. Beganovic, Jose M. Moran-Mirabal
Summary: A key challenge in sensor miniaturization is to create smaller electrodes without sacrificing sensitivity. In this study, gold electrodes were enhanced 30-fold by wrinkling and chronoamperometric pulsing, resulting in increased surface roughness. The nanoroughened electrodes were resistant to fouling and showed excellent performance in detecting Cu2+ and glucose. The authors anticipate that this methodology can accelerate the development of simple, cost-effective, and highly sensitive electrochemical platforms.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Analytical
Xiaojun Liu, Xiaoyu Chen, Tongtong Chen, Yong Xu, Xiangqun Zeng
Summary: This study introduced a new method for electrochemical detection of carbon black particles, demonstrating selective detection capabilities compared to insulating oxide particles. By systematically studying collision events at varying concentrations of carbon black, the researchers identified the most suitable bias potential and established a linear relationship between spike numbers and carbon black concentration. The work provides a basis for the development of powerful electroanalytical methods and technologies for detecting and classifying carbon particles in different environmental conditions.
ANALYTICAL CHEMISTRY
(2021)
