Article
Chemistry, Physical
Badri P. Mainali, Dhruba K. Pattadar, Francis P. Zamborini
Summary: The oxidation resistance of gold nanoparticles has a unique reverse size dependence for thiolate-coated nanoparticles, where the extent of oxidation increases with size, opposite to weakly stabilized or bare gold nanoparticles.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Mohammad M. Abdul-Moqueet, Leeana Tovias, Priscilla Lopez, Kathryn M. Mayer
Summary: The study improved the synthesis methods, functionalization, and bioconjugation of gold bipyramid nanoparticles, demonstrating the specific binding of antibodies to the nanoparticles.
Review
Chemistry, Multidisciplinary
Jiangming Wang, Weina Fang, Huajie Liu
Summary: This review extensively studies gold triangular nanoprisms (AuTNPs) as a novel type of nanomaterials with well-defined structures and excellent plasmonic properties. It covers the synthetic methodologies, morphological evolution, and applications of AuTNPs.
Review
Nanoscience & Nanotechnology
Anamika Kumari, Vibha Vyas, Santosh Kumar
Summary: This article is a review of the synthesis, characterization methods and applications of gold nanoparticles (Au-NPs) in fiber optic sensors. It analyzes the reported research work to understand the trends and gaps in developing plasmonic optical fiber sensors.
Article
Biophysics
Lixuan Liu, Kun Ye, Zhiyan Jia, Tianyu Xue, Anmin Nie, JianYong Xiang, CongPu Mu, Bochong Wang, Fusheng Wen, Kun Zhai, Zhisheng Zhao, Yongji Gong, Zhongyuan Liu, Yongjun Tian
Summary: This study demonstrates the selective functionalization of high-density grain boundaries in polycrystalline 1L WS2 films with complementary DNA receptors using gold nanoparticle linkers. The biosensor showed highly sensitive and selective detection of RNA sequences from the novel coronavirus, highlighting the immense potential of AuNP-decorated GB-rich 2DLMs in designing ultra-sensitive biosensing platforms.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Biochemistry & Molecular Biology
Maciej Trzaskowski, Marcin Drozd, Tomasz Ciach
Summary: This study investigated the attachment process of saccharide particles to cell receptors responsible for glucose transport across the cell membrane. The interactions between simple saccharides, such as glucose and sucrose, and dextran nanoparticles with two species of GLUT proteins were measured. The results showed that polysaccharide nanoparticles interacted with GLUT proteins, and the strengths of interactions varied between proteins.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Xingxing Jiang, Minghui Yang, Juewen Liu
Summary: This study systematically investigated the effect of surface-modified gold nanoparticles (AuNPs) on loop-mediated isothermal amplification (LAMP). It was found that mixing AuNPs with primers delayed the reaction, while other mixing orders accelerated it. The performance of AuNPs on LAMP was most significant when they formed a protein-like surface. By using glutathione-capped AuNPs, a detection limit of around 100 copies/μL of target DNA was achieved, indicating a higher sensitivity in DNA sensing.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Vu Thi Huong, Hanh Kieu Thi Ta, Ngoc Xuan Dat Mai, Thi Thanh Van Tran, Bui Xuan Khuyen, Kieu The Loan Trinh, Nae Yoon Lee, Bach Thang Phan, Nhu Hoa Thi Tran
Summary: A highly efficient and sensitive transmission-mode localized surface plasmon resonance sensor chip system and method have been developed using multimode fiber. By utilizing a self-assembly process, plasmonically active sensor's surface AuNPs decorated with high-density NPs were immobilized onto various clad-free fibers for detection of target molecules. This innovative approach shows potential for improving sensitivity of label-free biosensors as a possible replacement for conventional fluorescence-based biosensing techniques.
Article
Chemistry, Physical
Petteri Parkkila, Kai Harkonen, Petra Ilvonen, Saara Laitinen, Tapani Viitala
Summary: This study presents a protocol for the analysis of nanoparticles using a Protein A/G-functionalized biosensor. Antibodies and specific surface functionalization enable efficient capture and analysis of nanoparticles and their subpopulations.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Analytical
Nada F. Atta, Ahmed Galal, Asmaa R. M. El-Gohary
Summary: The novel method features the one pot preparation of TU-SAMs over CNT-Au-nano, providing simplicity, efficiency, and time-saving advantages compared to other electrochemical methods. The use of gold nanoparticles enhances the stability of TU-SAMs and increases the immobilized S-functionalized compounds for better sensor performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jonathan S. Weerakkody, Marielle El Kazzy, Elise Jacquier, Pierre-Henri Elchinger, Raphael Mathey, Wai Li Ling, Cyril Herrier, Thierry Livache, Arnaud Buhot, Yanxia Hou
Summary: Electronic nose utilizes a multisensor array to differentiate volatile organic compounds. In this study, a biohybrid surface with hierarchical structures made of self-assembling peptides is used for VOCs detection and discrimination. By a simple design process, the biohybrid sensor array shows sufficient discriminatory capabilities for four VOCs, with benchmarked limit of detection.
Article
Biochemistry & Molecular Biology
Natcha Rasitanon, Kornautchaya Veenuttranon, Hnin Thandar Lwin, Kanyawee Kaewpradub, Tonghathai Phairatana, Itthipon Jeerapan
Summary: This study successfully integrated glucose oxidase (GOx) with nanomaterial-modified electrodes using egg white proteins, and demonstrated the potential of this biocompatible interface in bioelectronics, such as glucose sensors and biofuel cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Pengfei Zhang, Xinyu Zhou, Jiapei Jiang, Jayeeta Kolay, Rui Wang, Guangzhong Ma, Zijian Wan, Shaopeng Wang
Summary: Plasmonic scattering microscopy (PSM) adds a dry objective to a surface plasmon resonance (SPR) system, providing higher spatial resolution and larger field of view. PSM allows studying multiple cells simultaneously and quantifying the mechanical properties of cell-substrate contacts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Electrical & Electronic
Zhe Zhang, Rumeng Yi, Shanshan He, Lin Liu, Xiangdong Guo, Ran Gao, Zhi-mei Qi
Summary: A new method based on dynamic field enhancement at the sensor surface has been proposed for amplifying SPR signals to detect CRP. The AuAg-SPR biosensors show high sensitivity in detecting trace biomarkers like CRP, and the enhancement can be applied to detect other biomarkers in low concentrations.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Fatemeh Farshchi, Arezoo Saadati, Mohammad Hasanzadeh, Yuqian Liu, Farzad Seidi
Summary: Acetaldehyde is an important mediator in the metabolism of plants and animals, but its abnormal level can cause biological problems. Detecting its concentration is highly demanded due to its significance in environmental samples and biofluids. This study introduces a novel colorimetric method for rapid and sensitive detection of acetaldehyde using different AgNPs with various morphologies. By utilizing the redox reaction between AgNPs, TMB solution, and analytes, a color change detectable by the naked eye occurs in 15 minutes. UV spectrophotometry is further employed for quantitative analysis. A paper-based microfluidic substrate prepared with an iron mold and liquid paraffin is utilized as a low-cost, accessible, and rapid detection tool. Different types of AgNPs exhibit different lower limits of quantification (LLOQ). AgNPs-Cit and AgNPrs can identify acetaldehyde in a linear range of 10(-7) to 10 M and an LLOQ of 10(-7) M. AgNWs show the best color change activity with a linear range of 10(-5) to 10 M and the lowest diagnostic limit of 10(-5) M. Lastly, analysis of human biofluids as real samples is successfully performed using this system.
Article
Chemistry, Multidisciplinary
Abhinav Chandresh, Xiaojing Liu, Christof Woell, Lars Heinke
Summary: Crystal organic/organic heterojunctions between C-60- and anthracene-based semiconductors are achieved using metallic-organic framework (MOF) thin films deposited layer by layer. By adjusting the lattice constants of two different MOFs, perfect epitaxy is achieved. The high-performance diodes fabricated exhibit a current on/off ratio of up to 6 orders of magnitude and an ideality factor close to unity, providing a basis for rational and simulation-based optimization and tailoring of such organic semiconductor interfaces.
Article
Nanoscience & Nanotechnology
Maya Molco, Fabrice Laye, Enrique Samperio, Shiran Ziv Sharabani, Victor Fourman, Dov Sherman, Manuel Tsotsalas, Christof Woell, Joerg Lahann, Amit Sitt
Summary: This study demonstrates a universal approach for fabricating polymeric fibers embedded with MOF crystals, which can include different types of MOFs. The resulting fibers exhibit excellent mechanical properties and can be arranged into dense, durable nonwoven meshes. Additionally, enzyme immobilization on the MOF fiber meshes shows improved performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Vanitha Reddy Naina, Sheng Wang, Dmitry Sharapa, Michael Zimmermann, Martin Haehsler, Lukas Niebl-Eibenstein, Junjun Wang, Christof Woell, Yuemin Wang, Sanjay Kumar Singh, Felix Studt, Silke Behrens
Summary: This study explores the catalytic performance of Pd nanocrystals doped with Pb in direct H2O2 synthesis. It is found that Pd3Pb cubes outperform other shapes of Pd3Pb nanocrystals and monometallic Pd catalysts in catalytic efficiency. DFT calculations and surface studies reveal that the electronic modification and lack of larger Pd ensembles in Pd3Pb cubes contribute to their superior catalytic activity in H2O2 synthesis.
Article
Chemistry, Analytical
Salih Okur, Mohammed Sarheed, Robert Huber, Zejun Zhang, Lars Heinke, Adnan Kanbar, Christof Woell, Peter Nick, Uli Lemmer
Summary: The study aimed to develop an electronic nose capable of electronically discriminating different species of Mint scents as an alternative to traditional gas chromatography. By using 12 different sensing materials and discriminating between various Mint species, the electronic nose demonstrated reliable and efficient discrimination of different Mint scents.
Review
Chemistry, Multidisciplinary
Ralph Freund, Stefano Canossa, Seth M. Cohen, Wei Yan, Hexiang Deng, Vincent Guillerm, Mohamed Eddaoudi, David G. Madden, David Fairen-Jimenez, Hao Lyu, Lauren K. Macreadie, Zhe Ji, Yuanyuan Zhang, Bo Wang, Frederik Haase, Christof Woell, Orysia Zaremba, Jacopo Andreo, Stefan Wuttke, Christian S. Diercks
Summary: The core of reticular chemistry has brought precision and expertise of organic and inorganic synthesis to the solid state. The most profound scientific innovation of this field has been the design strategies for the synthesis of extended crystalline solids through strong directional bonds, highlighting the different classes of reticular materials developed and how complexity can be introduced into their backbones. Structural control over these materials is being extended from the molecular scale to their crystal morphology and shape on the nanoscale, all the way to their shaping on the bulk scale.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Ritesh Haldar, Hongye Chen, Antoine Mazel, Dong-Hui Chen, Gaurav Gupta, Navneet Dua, Stephane Diring, Fabrice Odobel, Christof Woll
Summary: Efforts to achieve efficient high-yield wavelength conversion by stacking layers of chromophores have been unsuccessful so far. However, a significant improvement in optical conversion efficiency has been achieved through the use of chromophoric metal-organic framework heterolayers and an antenna doping strategy. The LR-FRET mechanism, previously reported to be highly anisotropic in neat materials, can be made more isotropic through doping strategies in optimized fabrication parameters.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yi-Bo Tian, Nina Vankova, Peter Weidler, Agnieszka Kuc, Thomas Heine, Christof Woll, Zhi-Gang Gu, Jian Zhang
Summary: This research demonstrates the assembly of chromophores into well-ordered 1D arrays using MOF approach, resulting in highly sensitive photodetectors. The oriented MOF thin film-based high-sensitive photodetector shows potential for assembling organic semiconductors into regular arrays, creating a new avenue for optoelectronic device fabrication.
Article
Electrochemistry
Ayman M. Atta, Eid M. S. Azzam, Khalaf M. Alenezi, Hani El Moll, A. Haque
Summary: This study utilized imidazolium and pyridinium cations as curing modifiers to enhance the performance of epoxy coatings, producing new ILs for curing epoxy resin. The resulting epoxy coatings cured with ILs hardeners showed significantly improved adhesion strengths and resistance to salt spray exposure.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Chemistry, Applied
Eid M. S. Azzam, Radwa M. Sami, Khalaf M. Alenezi, Ashan Haque, Hani El Moll, Raoudha A. Soury, Abdallah R. Ismail
Summary: The study demonstrates the antibacterial activity of silver nanoparticles coated with surfactants P10 and P12 against sulfate reducing bacteria, highlighting the importance of using surfactants in the design of new biocides.
JOURNAL OF SURFACTANTS AND DETERGENTS
(2022)
Article
Chemistry, Analytical
Salih Okur, Chun Li, Zejun Zhang, Sahi Vaidurya Pratap, Mohammed Sarheed, Adnan Kanbar, Leonard Franke, Felix Geislhoeringer, Lars Heinke, Uli Lemmer, Peter Nick, Christof Woell
Summary: Lamiaceae is the species-richest family of flowering plants, with many herbs and medicinal plants like basil or mint. Chemical speciation, particularly volatile organic compounds, drives the evolution of this group. The use of quartz-crystal microbalance-based electronic noses provides a cost-efficient alternative for discriminating scents emitted from different plants, demonstrating the ability to safeguard consumer safety in globalized trade.
Article
Nanoscience & Nanotechnology
Xiaojing Liu, Antoine Mazel, Stefan Marschner, Zhihua Fu, Marius Muth, Frank Kirschhoefer, Gerald Brenner-Weiss, Stefan Braese, Stephane Diring, Fabrice Odobel, Ritesh Haldar, Christof Woll
Summary: The study demonstrates that the use of highly spatioselective photochemistry can increase the structural complexity of MOF-based architectures, leading to the delamination of top layers and the formation of two-dimensional MOF sheets with defined thickness. This opens up new possibilities for fabricating planar MOF structures using photolithography.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Benedikt Sapotta, Matthias Schwotzer, Christof Woell, Matthias Franzreb
Summary: This novel method combines electrochemical impedance spectroscopy with dielectrometry, providing a reliable way to determine thickness and permittivity values of thin films. It demonstrates the ability to monitor the in-situ growth of crystalline films on an interdigitated electrode geometry.
Correction
Physics, Multidisciplinary
Pablo G. Lustemberg, Philipp Plessow, Yuemin Wang, Chengwu Yang, Alexei Nefedov, Felix Studt, Christof Woll, M. Veronica Ganduglia-Pirovano
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Zeinab Mohammed Hassan, Peter G. Weidler, Alexei Nefedov, Yi Luo, Stefan Heissler, Manuel Tsotsalas, Ritesh Haldar, Christof Woell
Summary: Metal-organic frameworks (MOFs) with periodic and modular structures can predict the physical and chemical properties of organic chromophores. In this study, a zinc-bianthryl (Zn-BA) surface-anchored MOF (SURMOF) thin film was constructed using a BA chromophore with metal-coordinating carboxylate groups. It was found that a photoinduced topotactic transformation occurred in the presence of oxygen, leading to changes in the optical properties of the Zn-BA SURMOF.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Chengwu Yang, Yunjun Cao, Philipp N. Plessow, Jia Wang, Alexei Nefedov, Stefan Heissler, Felix Studt, Yuemin Wang, Hicham Idriss, Thomas G. Mayerhoefer, Christof Woell
Summary: Catalytic decomposition of N2O on macroscopic monocrystalline CeO2(111) surfaces has been studied and found to be an effective way to control N2O emissions. The higher activity of reduced ceria surfaces compared to oxidized surfaces has been confirmed through experiments.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
