Article
Nanoscience & Nanotechnology
Ruisong Wang, Karan Jakhar, Shoaib Ahmed, Dion S. Antao
Summary: Research investigates the mechanism of organofunctional silane SAM coating degradation during water vapor condensation and finds that coatings prepared in a dry environment exhibit superior long-term robustness.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Thermodynamics
Ruisong Wang, Jiahui Guo, Emily A. Muckleroy, Dion S. Antao
Summary: Dropwise condensation can improve heat transfer performance, but existing coatings are prone to degradation. By improving the preparation process of silane coatings, better durability and heat transfer performance can be achieved.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Yurong Zhao, Xuzhi Hu, Limin Zhang, Dong Wang, Stephen M. King, Sarah E. Rogers, Jiqian Wang, Jian R. Lu, Hai Xu
Summary: Controlling the dimension of nanostructures self-assembled from short peptides remains a challenge, with peptide bolaamphiphiles forming nanotubes due to the interplay between side chain structure and hydrophobicity; changes in amino acid side chain structure can significantly impact nanostructure formation, with the introduction of hydroxyl groups alleviating steric hindrance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Baolin Zhao, Bastian Gothe, Arthur Groh, Thomas Schmaltz, Johannes Will, Hans-Georg Steinrueck, Tobias Unruh, Stefan Mecking, Marcus Halik
Summary: This study demonstrates the use of phosphonic acid oligomers in self-assembled monolayer field-effect transistors, showing increased mobility in devices by controlling the thiophene unit counts. X-ray techniques reveal the molecular-scale packing and order of SAMs with different chain lengths.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Julian M. Dlugosch, Henning Seim, Achyut Bora, Takuya Kamiyama, Itai Lieberman, Falk May, Florian Mueller-Plathe, Alexei Nefedov, Saurav Prasad, Sebastian Resch, Kai Saller, Christian Seim, Maximilian Speckbacher, Frank Voges, Marc Tornow, Peer Kirsch
Summary: This article presents a prototype of a ferroelectric tunnel junction (FTJ) based on a self-assembled monolayer (SAM) of small, functional molecules. The SAM is highly uniform and thin, and exhibits reversible conductance switching. Compared to inorganic material-based FTJs, this approach using SAMs of small organic molecules allows for a higher level of functional complexity while maintaining a robust and simple fabrication process. The technology is expected to find applications in information storage and processing.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Optics
Zhengkun Wang, Haiyang Sha, Ke Yang, Yong Zhu, Jie Zhang
Summary: In this study, the plasmonic response of self-assembled monolayer silver nanoparticles was comprehensively investigated using various computational and experimental techniques. The Fano resonance and SERS application were studied, and it was found that the higher-energy antibonding mode is not only from the antibonding dipole-dipole mode, but also from the antibonding quadrupole-quadrupole mode and hybridized magnetic mode. The effects of dimer gap and size were discussed in detail, and a two coupled oscillators model was used to illustrate the mechanism of the Fano resonance.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jianfeng Li, Wei Cao, Jinjin Li, Ming Ma
Summary: The study revealed that fluorination of perfluorocarbon SAM enhances superlubricity performance, achieving significantly lower friction coefficient and greater load-bearing capacity between graphite in water.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jie Xiao, Muyu Cong, Minmin Li, Xin Zhang, Yahui Zhang, Xinjia Zhao, Wenqi Lu, Zhimou Guo, Xinmiao Liang, Guangyan Qing
Summary: This study reports the development of a heterogeneous subnanochannel membrane formed by coating a functionalized self-assembled metal-organic framework (MOF) monolayer (SAMM) film on a porous anodic aluminum oxide membrane. The membrane exhibits excellent capacity for anion-selective transport and has the potential for significant advancement in osmotic power.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shakil N. N. Afraj, Chun-Hsiao Kuan, Jian-Sing Lin, Jen-Shyang Ni, Arulmozhi Velusamy, Ming-Chou Chen, Eric Wei-Guang Diau
Summary: Four X-shaped quinoxaline-based organic dyes, PQx (1), TQx, (2), PQxD (3), and TQxD (4), are developed as p-type self-assemble monolayer (SAM) for tin perovskite solar cells (TPSC). The thermal, optical, and electrochemical properties of these SAMs are thoroughly investigated. Tin perovskite layers are successfully deposited on these SAM surfaces using a two-step approach, and the achieved device performance follows the order of TQxD (8.3%) > TQx (8.0%) > PQxD (7.1%) > PQx (6.1%). Among them, TQxD (4), with a thiophene pi-extended conjugation unit in the SAM structure, exhibits the highest hole extraction rates, greatest hole mobilities, and slowest charge recombination, leading to the best reported efficiency of 8.3% for SAM-based TPSC. Moreover, all devices except PQx show good enduring stability, retaining approximately 90% of their original values after 1600 hours of shelf storage.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yiwen Wang, Wenlin Jiang, Shi-Chun Liu, Chieh-Ting Lin, Baobing Fan, Yanxun Li, Huanhuan Gao, Ming Liu, Francis R. Lin, Alex K. -Y. Jen
Summary: The operational stability of organic photovoltaics (OPVs) remains a major challenge for commercialization. By replacing the conventional hole-transporting layer with self-assembled monolayers of specific phosphonic acids, the lifetime and efficiency of OPV devices can be significantly improved. The improved performance is attributed to the stabilized vertical distribution of donor and acceptor components, reducing energetic disorder and non-radiative recombination losses. The application of these phosphonic acids in ternary devices demonstrates even higher efficiency and longer lifetime.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Zijing Chen, Yiming Li, Zhenghao Liu, Jiangjian Shi, Bingcheng Yu, Shan Tan, Yuqi Cui, Chengyu Tan, Fubo Tian, Huijue Wu, Yanhong Luo, Dongmei Li, Qingbo Meng
Summary: In this study, a functionalized C-PCBA SAM is introduced to improve interface defects and electron transportation in perovskite solar cells, resulting in high efficiency and stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
L. E. Lopez-Gonzalez, J. Guerrero-Sanchez, H. Tiznado
Summary: In this study, Stearic acid (SA) self-assembled monolayer (SAM) was proposed as a soft-removal passivating agent for area selective atomic layer deposition (AS-ALD) applications. The experimental results showed that SA SAM formed a highly packed, hydrophobic, and ordered monolayer on a copper surface, transitioning to disorder above 160 degrees C. Furthermore, SA demonstrated good stability as a non-growth surface for ZnO ALD, and could be completely removed with ethanol at room temperature.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Lu Liu, Yang Yang, Minyong Du, Yuexian Cao, Xiaodong Ren, Lu Zhang, Hui Wang, Shuai Zhao, Kai Wang, Shengzhong (Frank) Liu
Summary: This article investigates the interface issues of wide-bandgap perovskite solar cells and successfully improves energy conversion efficiency and indoor efficiency by designing a self-assembled monolayer as the interface layer. In addition, an all-perovskite tandem solar cell is configured, and a decent power conversion efficiency is achieved.
ADVANCED ENERGY MATERIALS
(2022)
Article
Polymer Science
Zhao-yang Zhang, Tao Li
Summary: Molecular-scale electronics is an emerging research field that aims to achieve electronic functions using single molecules and their monolayer assemblies. Advances in fabricating SAM devices and optimizing their performance can lead to practical applications in molecular electronics. Conjugated polymers show distinct advantages in SAM devices, outperforming small molecular materials in optoelectronic functions such as on-off ratios for switches.
ACTA POLYMERICA SINICA
(2021)
Article
Chemistry, Analytical
Danyal Sabzi, Danny Hsu Ko, Ashton Partridge, Ali Hosseini
Summary: Active templating is commonly used for nanoparticle synthesis. We have demonstrated that self-assembled monolayers (SAMs) on gold can serve as active templates. This study explores the impact of thiol terminal groups and their chain lengths on Pt nanoparticle growth. The results indicate that both the terminal groups and their hydrophilicity/hydrophobicity strongly affect the size, distribution, and potential difference of the nanoparticles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Biomedical
Arijit Ghosh, Yizhang Liu, Dmitri Artemov, David H. Gracias
Summary: The study optimized the magnetic dipole moment of untethered thermally responsive grippers for efficient coupling to external magnetic resonance (MR) fields. Gripper encapsulation in a millimeter sized wax pellet reduces friction with surrounding tissue and enables MR Navigation (MRN) of a 700 μm sized microgripper within narrow channels in tissue phantoms and in an ex vivo porcine esophagus. The results provide convincing proof-of-concept evidence that it is possible to sequentially image, move, and guide a submillimeter functional microsurgical tool in tissue conduits using a commercial preclinical MR system, which is an important step towards the clinical translation of untethered microtools in combination with prior demonstrations of physiologically responsive in vivo biopsy.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
David H. Gracias
Summary: Integrated nanotechnology 2.0 focuses on the design, fabrication, and assembly of nanostructured devices that could significantly impact human life through artificial intelligence, smart medicine, and robotics. This article outlines a few examples, principles, and perspectives.
IEEE NANOTECHNOLOGY MAGAZINE
(2022)
Article
Chemistry, Multidisciplinary
Debadrita Paria, Kam Sang Kwok, Piyush Raj, Peng Zheng, David H. Gracias, Ishan Barman
Summary: The study reports a large-scale and label-free testing platform that combines surface-enhanced Raman spectroscopy and machine learning for rapid and accurate detection of SARS-CoV-2. The technique can not only distinguish between different types of viruses, but also detect virus signatures in human saliva without additional sample preparation.
Article
Chemistry, Multidisciplinary
Gayatri J. Pahapale, Jiaxiang Tao, Milos Nikolic, Sammy Gao, Giuliano Scarcelli, Sean X. Sun, Lewis H. Romer, David H. Gracias
Summary: Precise spatial organization of multicellular structures plays a vital role in biological processes. This study uncovers a new mode of self-organization of endothelial cells guided by the combined effects of stiffness and geometry, independent of protein or chemical patterning.
Article
Multidisciplinary Sciences
Qi Huang, Bohao Tang, July Carolina Romero, Yuqian Yang, Saifeldeen Khalil Elsayed, Gayatri Pahapale, Tien-Jung Lee, Itzy E. Morales Pantoja, Fang Han, Cynthia Berlinicke, Terry Xiang, Mallory Solazzo, Thomas Hartung, Zhao Qin, Brian S. Caffo, Lena Smirnova, David H. Gracias
Summary: Researchers have developed miniaturized wafer-integrated caps with multiple electrodes (MEAs) for electrical recording in brain organoids. These MEAs have the ability to adapt to organoids of different sizes through mechanics simulations, and can record electrophysiological data for up to 4 weeks.
Article
Chemistry, Multidisciplinary
Arijit Ghosh, Wangqu Liu, Ling Li, Gayatri J. Pahapale, Si Young Choi, Liyi Xu, Qi Huang, Ruili Zhang, Zijian Zhong, Florin M. Selaru, David H. Gracias
Summary: This study describes autonomous microinjectors that can efficiently deliver macromolecular drugs, such as insulin, to the systemic circulation via the gastrointestinal tract. In vitro studies showed that these microinjectors can penetrate the gastrointestinal mucosa and in vivo experiments in rats demonstrated successful release of insulin.
Article
Robotics
Aishwarya Pantula, Bibekananda Datta, Yupin Shi, Margaret Wang, Jiayu Liu, Siming Deng, Noah J. Cowan, Thao D. Nguyen, David H. Gracias
Summary: This study demonstrates a mechanism for using thermoresponsive hydrogels to enable gel crawlers to move unidirectionally, achieving successful results in experiments. This mechanism holds potential for application to other shape-changing locomotors.
Review
Computer Science, Artificial Intelligence
Itzy Morales E. Pantoja, Lena Smirnova, Alysson R. Muotri, Karl J. Wahlin, Jeffrey Kahn, J. Lomax Boyd, David H. Gracias, Timothy D. Harris, Tzahi Cohen-Karni, Brain S. Caffo, Alexander S. Szalay, Fang Han, Donald J. Zack, Ralph Etienne-Cummings, Akwasi Akwaboah, July Carolina Romero, Dowlette-Mary Alam El Din, Jesse D. Plotkin, Barton L. Paulhamus, Erik C. Johnson, Frederic Gilbert, J. Lowry Curley, Ben Cappiello, Jens C. Schwamborn, Eric J. Hill, Paul Roach, Daniel Tornero, Caroline Krall, Rheinallt Parri, Fenna Sille, Andre Levchenko, Rabih E. Jabbour, Brett J. Kagan, Cynthia A. Berlinicke, Qi Huang, Alexandra Maertens, Kathrin Herrmann, Katya Tsaioun, Raha Dastgheyb, Christa Whelan Habela, Joshua T. Vogelstein, Thomas Hartung
Summary: The brain is a powerful computation system with efficient processing and adaptability. Advances in stem cell technology have led to the development of three-dimensional brain organoids that better mimic human brain functionality. Organoid Intelligence aims to use these capabilities for biocomputing and synthetic intelligence. Understanding how learning changes organoid connectivity can shed light on cognition in the human brain.
FRONTIERS IN ARTIFICIAL INTELLIGENCE
(2023)
Article
Chemistry, Multidisciplinary
Kam Sang Kwok, Yi Zuo, Soo Jin Choi, Gayatri J. Pahapale, Luo Gu, David H. Gracias
Summary: Lithographic nanopatterning techniques have been widely used in electronics and optics, but their application in nanobio interfaces is limited by cytotoxicity and 2D features. This article presents a biocompatible and cost-effective transfer process using nanoimprint lithography and alginate hydrogel to create flexible and degradable transfer layers. Biotransfer printing of the nanopattern arrays on live cells and animal brains demonstrates high pattern fidelity and cell viability. This method has great potential in advancing bionics, biosensing, and biohybrid tissue interfaces.
Article
Chemistry, Physical
Joshua Fern, Ruohong Shi, Yixin Liu, Yan Xiong, David H. Gracias, Rebecca Schulman
Summary: The development of biomolecular stimuli-responsive hydrogels is crucial for various applications such as biomimetic structures, soft robots, tissue engineering, and drug delivery. DNA polymerization gels, composed of polymer gel backbones with DNA duplex crosslinks, can be swollen through strand displacement using hairpin-shaped DNA strands. By adjusting the design and concentration of DNA crosslinks, the DNA hairpin triggers, and the ionic strength of the solution, the swelling response of DNA polymerization gels can be finely tuned, providing a quantitative connection between biochemical reactions and macroscopic material behavior.
Article
Automation & Control Systems
Qi Huang, Tao Deng, Weinan Xu, ChangKyu Yoon, Zhao Qin, Yida Lin, Tengfei Li, Yuqian Yang, Michael Shen, Susanna M. Thon, Jacob B. Khurgin, David H. Gracias
Summary: This study demonstrates a scalable strategy for creating reversible self-folding structures using a negative epoxy photoresist. Complex structures and functional devices are achieved, including integrated gold electrodes for enhanced photoresponse and 3D angle sensitive detection. This work provides a comprehensive framework for the rational design and scalable fabrication of complex 3D optical and electronic devices through the folding of 2D monolayer graphene.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Review
Pharmacology & Pharmacy
Wangqu Liu, Soo Jin Choi, Derosh George, Ling Li, Zijian Zhong, Ruili Zhang, Si Young Choi, Florin M. Selaru, David H. Gracias
Summary: Recent studies show that the deployment of tether-free and shape-changing devices, especially at sub-mm scales, could greatly improve the diagnosis and treatment of GI diseases such as cancer, IBD, and IBS. These devices have the potential to enhance treatment efficacy, reduce costs, and increase medication compliance. The article discusses the challenges and possibilities associated with ensuring safe, reliable, and autonomous operation of these smart devices.
EXPERT OPINION ON DRUG DELIVERY
(2023)
Meeting Abstract
Urology & Nephrology
Ridwan Alam, Wangqu Liu, Ezra Baraban, Brian Matlaga, Andres Matoso, David Gracias, Jared Winoker
JOURNAL OF UROLOGY
(2022)
Meeting Abstract
Gastroenterology & Hepatology
Ling Li, Arijit Ghosh, Wangqu Liu, Gayatri Pahapale, Brian Choi, Liyi Xu, Qi Huang, David H. Gracias, Florin M. Selaru
Article
Nanoscience & Nanotechnology
Anjishnu Sarkar, Debadrita Paria, Ishan Barman, David H. Gracias
Summary: This study introduces a method for controlled cracking of graphene ribbons to alter their properties, such as crystallographic orientation and energy band gap. The experiment identifies that the extent of prior ultraviolet crosslinking in SU8 and electron beam dose are the most significant factors contributing to the nano to microscale breakage of micropatterned graphene ribbons. Additionally, the nanoscale breakage in graphene can be tuned by adjusting these variables, potentially allowing for the fabrication of integrated electronic and optical devices with engineered defects or break junctions.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
