Article
Chemistry, Physical
Mandeep Singh, Navpreet Kaur, Andrea Casotto, Luigi Sangaletti, Nicola Poli, Elisabetta Comini
Summary: This study demonstrates the importance of tailoring metal oxide nanowires with suitable self-assembled monolayers for developing highly efficient and selective chemical sensors with low power consumption. The functionalization strategy of SAMs on ZnO nanowires enhances sensor performance towards acetone and improves the ability to discriminate acetone molecules. TEOS functionalized sensors show superior performance at lower operating temperatures compared to other sensor structures. This SAM functionalization strategy has great potential in developing high performance chemical sensor devices for various analytes including acetone and environmental pollutants.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Multidisciplinary Sciences
Ningyue Chen, Shuwei Li, Peng Zhao, Ran Liu, Yu Xie, Jin-Liang Lin, Christian A. Nijhuis, Bingqian Xu, Liang Zhang, Huaping Xu, Yuan Li
Summary: This study introduces a method to form stable gold-based self-assembled monolayers (SAMs) using selenide anchoring groups, resulting in highly stable molecular tunnel junctions. The findings demonstrate the potential application of selenide-derived stable SAMs in long-lived molecular electronic devices.
Article
Electrochemistry
Zhen Yao, Aaron B. Naden, Richard T. Baker, Manfred Buck
Summary: This study investigates a scheme for the electrodeposition of ultrathin bimetallic layers on top of a self-assembled monolayer (SAM). The process involves the coordinated deposition of one metal (Pd) on Au/mica with another metal (Cu) from the bulk electrolyte. The coordination-controlled electrodeposition process results in the formation of Pd-Cu core-shell nanoparticles, and a simplified one-pot procedure is developed to obtain continuous Pd/Cu films.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Biomaterials
Aldona Mzyk, Gabriela Imbir, Yuri Noguchi, Marek Sanak, Roman Major, Justyna Wiecek, Przemyslaw Kurtyka, Hanna Plutecka, Klaudia Trembecka-Wojciga, Yasuhiko Iwasaki, Masato Ueda, Sachiro Kakinoki
Summary: The blood compatibility of self-assembled monolayers (SAMs) of oligoproline was studied and found to strongly suppress the adsorption of blood components and the adhesion of blood cells, especially the activation of platelets.
BIOMATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Lara Marie Novak, Eva-Maria Steyskal
Summary: Nanoporous gold (npAu) is a suitable platform for electrochemical detection of chemical species due to its high surface-to-volume ratio. By modifying the surface with a self-assembled monolayer (SAM) of 4-mercaptophenylboronic acid (MPBA), an electrode sensitive to fluoride ions in water was created, with potential for mobile sensing applications. The detection strategy is based on changes in the boronic acid functional groups induced by fluoride binding, allowing for fast and sensitive detection with a 0.2 mM detection limit.
Article
Polymer Science
Lijian Song, Youchen Zhang, Weimin Yang, Jing Tan, Lisheng Cheng
Summary: Recent studies have shown that introducing a self-assembled monolayer (SAM) can decrease thermal resistance between solid and fluid, while the molecular structure and bond strength of SAM significantly affect interfacial thermal resistance. Matching vibrational spectra facilitate thermal transport between SAM chains and fluids.
Article
Chemistry, Analytical
Maria Lykova, Iuliana Panchenko, Martin Schneider-Ramelow, Tadatomo Suga, Fengwen Mu, Roy Buschbeck
Summary: This research paper presents a method to passivate Cu using a self-assembled monolayer (SAM) to protect against oxidation. The results show that SAM significantly reduces Cu oxidation and improves Cu-Cu bonding technology.
Article
Chemistry, Physical
Lixian Tian, Xianneng Song, Xi Yu, Wenping Hu
Summary: Facile modulation of rectification behavior of a molecular junction device was achieved by adjusting humidity and alkali metal ions. Experimental results showed that both humidity and K+/Na+ enhanced the rectification ratio, and the electronic structure change at the molecule-(GaOx)GaIn interface played a critical role in modulating rectification performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Zach Watkins, Aleksandar Karajic, Thomas Young, Ryan White, Jason Heikenfeld
Summary: Conventional wisdom suggests that self-assembled alkylthiolate monolayers on gold are not stable when exposed to complex fluids such as raw serum at body temperature. However, this study demonstrates that these monolayers can last for at least 1 week under such conditions and can provide significant value for continuous electrochemical aptamer biosensors.
Article
Chemistry, Analytical
Miriam Chavez, Guadalupe Sanchez-Obrero, Rafael Madueno, Jose Manuel Sevilla, Manuel Blazquez, Teresa Pineda
Summary: The modification of surfaces by polyethylene glycol is an effective method to reduce antifouling effects in biological media. This study investigated the formation and characteristics of a self-assembled monolayer of EG7-SAM on different surfaces, and found that the EG7-SAM showed the best organization after 1 hour of modification time and exhibited antifouling properties against protein adsorption.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Ayana Mizuno, Atsushi Ono
Summary: Plasmonic color modulation was demonstrated by controlling the interparticle distances in an assembled Ag nanocube monolayer, resulting in a transition from magenta to orange to yellow in transmitted light. This color modulation has the potential for applications in multispectral image sensors.
ACS APPLIED NANO MATERIALS
(2021)
Article
Biology
Arpana Parihar, Zannatul Ferdous Sonia, Farjana Akter, Md Ackas Ali, Fuad Taufiqul Hakim, Md Shahadat Hossain
Summary: In this study, plant-based phytochemicals were screened for their therapeutic potential against SARS-CoV-2 using computational tools. The results identified isoskimmiwallin and terflavin A as potential inhibitors of RdRp, and isoquercitrin and isoorientin as lead molecules against Mpro. These findings could contribute to the development of novel therapeutics for COVID-19.
COMPUTERS IN BIOLOGY AND MEDICINE
(2022)
Article
Chemistry, Physical
Lu Cai, Guangsu Tan, Xiaohan Jing, Yanguang Wu, Zhitian Liu
Summary: A method of obtaining high monolayer content in liquid phase exfoliation of graphene is proposed, through shear exfoliation and solvent-insertion. It has been found that shear exfoliation cannot achieve monolayer content due to the velocity gradient requirement of solvent to graphene. By investigating the influence of forces and solvents, the conditions for high monolayer content are summarized. Low-speed agitation and ultrasound are recommended in the initial phase, and high-speed agitation in the later stage of exfoliation.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Takamasa Sagara, Youichi Hagi, Masaki Toyohara
Summary: The study found that anionic surfactants and inorganic anions can bind to the cationic redox-active viologen site in a self-assembled monolayer, resulting in a negative shift in the formal potential. Anion binding was weaker for viologens located on the SAM surface, indicating enhanced binding by electrostatic interaction. Furthermore, longer alkyl chain lengths in surfactants led to a greater negative shift in the formal potential.
Article
Chemistry, Physical
Sohyun Park, Jiung Jang, Hyo Jae Yoon
Summary: This paper investigates the relationship between structure and thermopower in organic thermoelectric devices, using measurements of the Seebeck coefficient in self-assembled monolayers. Hypotheses derived from a transmission function-based toy model were tested by comparing values of S for different molecules and electrodes, and monitoring responses of S to structural modifications. Experimental and simulated S values were reconciled with interfacial electronic structure and molecule-electrode coupling strength measurements.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Shih-Wei Hung, Pai-Yi Hsiao, Chien-Pin Chen, Ching-Chang Chieng
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Chemistry, Physical
Shih-Wei Hung, Gota Kikugawa, Junichiro Shiomi
Journal of Physical Chemistry C
(2016)
Article
Chemistry, Physical
Shih-Wei Hung, Junichiro Shiomi
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Biochemical Research Methods
Shih-Wei Hung, Pai-Yi Hsiao, Ching-Chang Chieng
IEEE TRANSACTIONS ON NANOBIOSCIENCE
(2010)
Article
Chemistry, Physical
Shih-Wei Hung, Pai-Yi Hsiao, Ming-Chang Lu, Ching-Chang Chieng
JOURNAL OF PHYSICAL CHEMISTRY B
(2012)
Article
Nanoscience & Nanotechnology
Takashi Kodama, Nobuhiro Shinohara, Shih-Wei Hung, Bin Xu, Masanao Obori, Donguk Suh, Junichiro Shiomi
Summary: In this study, surface functionalization of fumed silica nanoparticles was shown to significantly suppress thermal conductivity through modification with linear alkyl chain of optimal length, leading to improved performance of thermal insulators. The magnitude of suppression is found to depend on the chain length and the number of reactive silanol groups in the chemical structure, with hydrophobization effectively reducing thermal boundary conductance. Additionally, when the chain length is long, the suppression is counteracted by enhanced phonon transmission through silane coupling molecules, informing the prediction of optimal chemical structure for better thermal insulation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Bin Xu, Shih-Wei Hung, Shiqian Hu, Cheng Shao, Rulei Guo, Junho Choi, Takashi Kodama, Fu-Rong Chen, Junichiro Shiomi
Summary: This study developed a novel strategy to enhance the thermal conductivity of composite materials by functionalizing diamond particles and copper with self-assembled monolayer (SAM) prior to high-temperature sintering, which significantly improved the thermal boundary conductance (TBC). Through controlling the SAM coverage and ordering, the thermal conductivity of the copper/diamond composite was significantly increased, demonstrating the potential for high-temperature applications.
Article
Multidisciplinary Sciences
Bin Xu, Shiqian Hu, Shih-Wei Hung, Cheng Shao, Harsh Chandra, Fu-Rong Chen, Takashi Kodama, Junichiro Shiomi
Summary: The study demonstrates a counterintuitive phenomenon where a weak van der Waals interface may exhibit higher thermal boundary conductance than a strong covalently bonded interface in a system with highly mismatched vibrational frequencies. The results suggest a trade-off relationship between bridging and binding effects, with bridging potentially overwhelming binding effects at highly mismatched interfaces. This comprehensive understanding of phonon transport at interfaces allows for tailored thermal transport in various material systems.
Article
Engineering, Electrical & Electronic
Shih-Wei Hung, Shiqian Hu, Junichiro Shiomi
ACS APPLIED ELECTRONIC MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Kuo-Liang Teng, Pai-Yi Hsiaol, Shih-Wei Hung, Ching-Chang Chieng, Ming-Shen Liu, Ming-Chang Lu
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
(2008)
Article
Nanoscience & Nanotechnology
SW Hung, JK Hwang, F Tseng, JM Chang, CC Chen, CC Chieng