Article
Engineering, Chemical
Yapin Liu, Ming Qi, Xingmin Xu, Tao Liu, Yunxia Hu
Summary: A method was developed to precisely tailor the pore size of PSf-b-PEG membranes in sub-5 nm via the NIPS process. By mixing selective solvents of Ts and THF in various ratios, the casting solution properties and pore size of the membranes were finely tailored. The PSf-b-PEG membranes showed a nanofibrous structure with high porosity and mechanical strength, and even with a pore size of 2 nm, the pure water permeance was still high, indicating their potential for practical applications.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Lin Xu, Jie Yang, Chenguang Qiu, Shiqi Liu, Weijun Zhou, Qiuhui Li, Bowen Shi, Jiachen Ma, Chen Yang, Jing Lu, Zhiyong Zhang
Summary: Single-walled carbon nanotubes have shown promising potential as a semiconductor for future transistors and integrated circuits due to their thin channel thickness and high injection velocity. By exploring the performance limits of CNT FETs based on a gate-all-around structure, it has been found that they can achieve high-performance targets and have superior energy-delay products compared to other materials at sub-5 nm gate lengths. However, despite the theoretical possibility of scaling CNT FET gate lengths to 2 nm, the ultimate limit is considered to be at 5 nm due to the tradeoff between performance and power consumption.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Yanxia Lin, Yu Cao, Sujuan Ding, Panpan Zhang, Lin Xu, Chenchen Liu, Qianlan Hu, Chuanhong Jin, Lian-Mao Peng, Zhiyong Zhang
Summary: Aligned semiconducting carbon nanotubes have the potential to be an alternative to silicon in scaled field-effect transistors (FETs) due to their easy miniaturization and high energy efficiency. Researchers have successfully fabricated aligned carbon nanotube FETs at the same dimensions as low-node silicon technology, demonstrating size and electronic performance superior to silicon transistors. By introducing a full-contact structure, nanotube FETs with scaled contacted gate pitch comparable to the 10 nm silicon technology node have been created, exhibiting higher carrier mobility and Fermi velocity.
NATURE ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Steven Gottlieb, Louis Pigard, Yu Kyoung Ryu, Matteo Lorenzoni, Laura Evangelio, Marta Fernandez-Regulez, Colin D. Rawlings, Martin Spieser, Francesc Perez-Murano, Marcus Mueller, Armin W. Knoll
Summary: The study presents a probe-based thermal-imaging technique that can achieve sub-10 nm lateral resolution and sub-10 ms pixel rate. Through investigating microphase-separated PS-b-PMMA block copolymers, the study reveals asymmetry in the heat flux signal and the heat flux ratio between both polymers in different geometries. Comparison with coarse-grained molecular simulations shows enhanced transport along the macromolecular backbone and Kapitza resistance at internal interfaces of the self-assembled structure.
Article
Multidisciplinary Sciences
Mingchao Xiao, Jie Liu, Chuan Liu, Guangchao Han, Yanjun Shi, Chunlei Li, Xi Zhang, Yuanyuan Hu, Zitong Liu, Xike Gao, Zhengxu Cai, Ji Liu, Yuanping Yi, Shuai Wang, Dong Wang, Wenping Hu, Yunqi Liu, Henning Sirringhaus, Lang Jiang
Summary: Bulk heterojunctions in organic photovoltaic devices have complex structures, but highly-ordered organic p-n junctions are desirable for studying the nature of organic heterojunctions. By using a design rationale, the authors successfully fabricated p-n heterojunctions based on monolayer molecular crystals.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Alberto Ambrosetti, Pier Luigi Silvestrelli
Summary: Experimental observations show the existence of quasi-frictionless water flow through nanometer-scale carbon nanotubes. Quantum mechanics is necessary to explain this phenomenon. This study analyzes the coupling between water molecules and plasmon and phonon excitations in carbon nanotubes, and finds that a certain speed threshold is required for scattering against the electronic and vibrational modes.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Hyeokjun Seo, Sunghyun Yoon, Banseok Oh, Yongchul G. Chung, Dong-Yeun Koh
Summary: This research demonstrates the separation of hexane isomers using membranes with molecular specificity, effectively reducing energy intensity through size- and shape-based separation of molecules. The ultramicroporous carbon membrane produced with 6FDA-polyimides successfully separated isomers of different shapes, achieving fractionation without liquid-phase pressurization. Such membranes have the potential to significantly reduce energy intensity in bulk chemical separations of organic liquids.
Article
Materials Science, Multidisciplinary
Yahong Zhou, Junran Hao, Jiajia Zhou, Jingwen Liao, Yan Wei, Xiachao Chen, Chengyun Ning, Xuliang Deng, Lei Jiang
Summary: In this study, the dynamic electric gating process in a polypyrrole-based nanoporous membrane system was modulated at sub-2-nm speed, resulting in a fully closed gating state. This design shows promising applications in the field of smart nanorobot and wearable electronics.
Article
Chemistry, Multidisciplinary
Anping Ji, Yunfei Chen
Summary: The behavior of ion transport through sub-nm nanopores is influenced by surface charge, resulting in increased cation mobility and selectivity towards Na+ and repellence towards Cl-. By investigating factors such as surface charge and electroosmosis, we can gain a better understanding of ion transport through sub-nm nanopores. These findings have potential applications in the design of nanofluidic devices.
Article
Materials Science, Multidisciplinary
Aaditya Pendse, Semih Cetindag, Kun Wang, Donglin Li, Richard J. Castellano, Da-Chi Yang, Tongshuai Wang, Jerry W. Shan, Sangil Kim
Summary: This study presents a nanofluidic platform utilizing BNNTs as a model system to investigate ion transport. The results reveal the significant role of strong electrostatic interactions between highly charged BNNTs and ions in defining the ion transport mechanism. Furthermore, the study demonstrates the superior NaCl separation performance of BNNTs compared to commercial membranes.
Article
Thermodynamics
Houssem Rezgui, Faouzi Nasri, Mohamed Fadhel Ben Aissa, Amen Allah Guizani
Summary: This paper investigates the significance and methods of thermal management applications in carbon nanotube field-effect transistors (CNTFETs) using a phonon hydrodynamic model and finite element method to study nanoscale heat transport within sub-10nm CNTFETs. The results suggest that increasing specular phonon reflection inside the channel region and enhancing the thermal conductivity of CNTs are effective ways to improve heat propagation and dissipation.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
Article
Nanoscience & Nanotechnology
Wenshu Chen, Jiajun Gu, Qinglei Liu, Mengzhao Yang, Cheng Zhan, Xining Zang, Tuan Anh Pham, Guangxiang Liu, Wang Zhang, Di Zhang, Bruce Dunn, Y. Morris Wang
Summary: This study presents a strategy to produce thickness-adjustable dense electrode films with fast ion transport channels, leading to high areal and volumetric capacitances. Density functional theory and ab initio molecular dynamics simulations reveal the crucial roles of hydration and nanoscale channels in enabling ultrafast ion transport and enhanced charge storage in these films.
NATURE NANOTECHNOLOGY
(2022)
Review
Physics, Multidisciplinary
Ruge Quhe, Lin Xu, Shiqi Liu, Chen Yang, Yangyang Wang, Hong Li, Jie Yang, Qiuhui Li, Bowen Shi, Ying Li, Yuanyuan Pan, Xiaotian Sun, Jingzhen Li, Mouyi Weng, Han Zhang, Ying Guo, Linqiang Xu, Hao Tang, Jichao Dong, Jinbo Yang, Zhiyong Zhang, Ming Lei, Feng Pan, Jing Lu
Summary: Two-dimensional semiconductors show promising electrostatics and carrier transportability, offering potential for scaling FETs' gate length down to the sub-10 nm region without compromising device performance. Many 2D FETs exhibit excellent performance for high performance and/or low power applications, extending Moore's law down to 1 to 2-nm gate length.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Qiang Li, Xingyi Tan, Yongming Yang, Xiaoyong Xiong, Teng Zhang, Zhulin Weng
Summary: In this study, an ab initio quantum transport approach was used to simulate sub-5 nm gate-length double-gate monolayer selenene FETs. The research found that 3 nm gate-length p-type ML selenene FETs, when considering negative-capacitance technology and underlap, can meet the 2013 ITRS standards for high-performance applications. Therefore, selenene has the potential to scale Moore's law down to a gate length of 3 nm.
Article
Chemistry, Multidisciplinary
Jacqueline M. Hicks, Yun-Chico Yao, Sydney Barber, Nigel Neate, Julie A. Watts, Aleksandr Noy, Frankie J. Rawson
Summary: Cells modulate their homeostasis through the control of redox reactions via transmembrane electron transport systems, with the focus on utilizing carbon nanotube porins as bipolar nanoelectrodes for wireless control of membrane electron transfer.
Article
Chemistry, Multidisciplinary
Zhongwu Li, Yuhao Li, Yun-Chiao Yao, Fikret Aydin, Cheng Zhan, Yunfei Chen, Menachem Elimelech, Tuan Anh Pham, Aleksandr Noy
Article
Multidisciplinary Sciences
Bedanga Sapkota, Wentao Liang, Armin VahidMohammadi, Rohit Karnik, Aleksandr Noy, Meni Wanunu
NATURE COMMUNICATIONS
(2020)
Article
Nanoscience & Nanotechnology
Xi Chen, Aleksandr Noy
Summary: Bioelectronic devices play a crucial role in medical diagnostics, therapeutics delivery, and chronic symptoms monitoring, but their performance is hindered by surface fouling. Researchers are exploring principles and strategies to prevent fouling and enhance device performance through various antifouling approaches.
Article
Multidisciplinary Sciences
Nga T. Ho, Marc Siggel, Karen Camacho, Ramachandra M. Bhaskara, Jacqueline M. Hicks, Yun-Chiao Yao, Yuliang Zhang, Jurgen Kofinger, Gerhard Hummer, Aleksandr Noy
Summary: Liposomes with carbon nanotube porins (CNTPs) on their membranes have been found to be efficient vehicles for direct cytoplasmic drug delivery, enhancing the killing effect of anticancer drugs on cancer cells. This research opens up new possibilities for designing more efficient drug delivery carriers.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Physical
Yun-Chiao Yao, Zhongwu Li, Alice J. Gillen, Shari Yosinski, Mark A. Reed, Aleksandr Noy
Summary: Carbon nanotube porins demonstrate excellent biocompatibility and unique water and ion transport properties. Gating transport with external voltage increases control over ion flow and selectivity. The optimal gated CNTP device consists of a semiconducting CNTP inserted into a small membrane patch containing an internally conductive layer.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Joshua A. Hammons, Marcel D. Baer, Tengyue Jian, Jonathan R. Lee, Thomas M. Weiss, James J. De Yoreo, Aleksandr Noy, Chun-Long Chen, Anthony Van Buuren
Summary: This study used in situ X-ray scattering and molecular dynamics simulations to investigate the early stages of assembly of three different peptoids. Results showed that peptoids first aggregated into a less crystalline nascent phase before forming the more crystalline peptoid membrane, with anisotropic aromatic interactions identified as the dominant driving force in the early stages of membrane formation. These insights provide valuable information on how to manipulate peptoid assembly during the early stages of nucleation and growth.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jacqueline M. Hicks, Yun-Chico Yao, Sydney Barber, Nigel Neate, Julie A. Watts, Aleksandr Noy, Frankie J. Rawson
Summary: Cells modulate their homeostasis through the control of redox reactions via transmembrane electron transport systems, with the focus on utilizing carbon nanotube porins as bipolar nanoelectrodes for wireless control of membrane electron transfer.
Editorial Material
Nanoscience & Nanotechnology
Marco Rolandi, Aleksandr Noy, Sahika Inal, Jonathan Rivnay
Review
Materials Science, Multidisciplinary
T. Voisin, R. Shi, Y. Zhu, Z. Qi, M. Wu, S. Sen-Britain, Y. Zhang, S. R. Qiu, Y. M. Wang, S. Thomas, B. C. Wood
Summary: The first part of this article reviews the microstructures found in LPBF 316L SS and their impact on corrosion properties, with a focus on pitting resistance. The second part discusses relevant modeling techniques for simulating the corrosion of LPBF 316L SS and identifies current challenges that need to be addressed.
Article
Biochemical Research Methods
Xiyu Yi, Haichao Miao, Jacky Kai-Yin Lo, Maher M. Elsheikh, Tek-Hyung Lee, Chenfanfu Jiang, Yuliang Zhang, Brent W. Segelke, K. Wesley Overton, Peer-Timo Bremer, Ted A. Laurence
Summary: Research has found that Legionella pneumophila infection is correlated with a series of morphological signatures. The lattice light sheet microscope (LLSM) can be used for long-term study of bacterial infection, and our free modifications and workflow designs contribute to the adoption and promotion of this advanced technology in both academic and commercial applications.
BIOMEDICAL OPTICS EXPRESS
(2022)
Article
Nanoscience & Nanotechnology
Zhongwu Li, Rahul Prasanna Misra, Yuhao Li, Yun-Chiao Yao, Sidi Zhao, Yuliang Zhang, Yunfei Chen, Daniel Blankschtein, Aleksandr Noy
Summary: Experimental measurements and molecular dynamics simulations show that the Nernst-Einstein relation breaks down in narrow carbon nanotube porins. K+ ion diffusion is three orders of magnitude slower in these channels due to the disintegration of water chains and the formation of K+-water clusters. This study reveals two distinct mechanisms for ion diffusion and electromigration, leading to the breakdown of the overall Nernst-Einstein relation.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Sidi Zhao, Alice J. Gillen, Yuhao Li, Aleksandr Noy
Summary: CNTs with transport properties identical to lipid-assisted procedure can be synthesized by sonochemical cutting of long CNT feedstocks in the presence of different surfactants, opening up a wide variety of synthetic routes for CNTP production.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Aleksandr Noy, Zhongwu Li, Seth B. Darling
Summary: The rising energy demands in computing require rethinking hardware paradigms for energy efficiency. Neuromorphic computing mimics the brain's principles but faces scalability and power consumption challenges. Computing with ion transport in water through nanochannels emerges as a potentially revolutionary approach with energy-efficient possibilities.
