Article
Chemistry, Multidisciplinary
Di Zheng, Filippo Pisano, Liam Collard, Antonio Balena, Marco Pisanello, Barbara Spagnolo, Rosa Mach-Batlle, Francesco Tantussi, Luigi Carbone, Francesco De Angelis, Manuel Valiente, Liset M. de la Prida, Cristian Ciraci, Massimo De Vittorio, Ferruccio Pisanello
Summary: Integration of plasmonic nanostructures with fiber-optics-based neural probes enables label-free detection of molecular fingerprints via surface-enhanced Raman spectroscopy (SERS). A SERS-active neural probe based on a tapered optical fiber (TF) decorated with gold nanoislands (NIs) is presented, which can detect neurotransmitters down to the micromolar range. The NIs-TF technology is envisioned as a first step toward the unexplored frontier of in vivo label-free plasmonic neural interfaces.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaojun Song, Yueliang Wang, Yan Hao, Qingqing Zhu, Yanjuan Li, Lei Song, Zhaoxiang Deng
Summary: This study successfully built a series of homo/heterodimeric plasmonic nanomolecules with prescribed compositions using DNA-guided, solvo-driven Ag ion soldering method. Strong in-solution electric-dipole coupling was achieved for materials with strong (Au, Ag) or damped (Pt, Pd) plasmonic responses.
Article
Chemistry, Multidisciplinary
Wei Zhang, Bin Ai, Panpan Gu, Yuduo Guan, Zengyao Wang, Zifan Xiao, Gang Zhang
Summary: Sub-10 nm nanogaps with tailored chiroptical responses were fabricated between two nanocrescents through nanoskiving, breaking mirror symmetry with subsequent deposition. Strong plasmonic coupling excited in the gaps and at the tips lead to circular dichroism activity. The chiral nanogaps can recognize specific cysteine enantiomers and show potential in various chiral applications.
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
Optics
Rakesh Arul, David-Benjamin Grys, Rohit Chikkaraddy, Niclas S. Mueller, Angelos Xomalis, Ermanno Miele, Tijmen G. Euser, Jeremy J. Baumberg
Summary: This study demonstrates a self-assembled gold nanoparticle multilayer that supports tunable collective plasmon-polariton resonances in the visible and infrared spectrum. The structure exhibits high stability and efficient light coupling, making it suitable for nanoscale Raman and infrared sensing applications.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Dezhao Huang, Qiangsheng Sun, Zeyu Liu, Shen Xu, Ronggui Yang, Yanan Yue
Summary: The authors developed a tip-enhanced Raman thermometry approach to study thermal transport at nanoscale hotspots and predicted the phonon mean free path through a combination of experiments and simulations.
Article
Multidisciplinary Sciences
Cecilia Ka Wing Chan, Cheuk Chun Szeto, Leo Kit Cheung Lee, Yu Xiao, Bohan Yin, Xiaofan Ding, Thomas Wai Yip Lee, James Yun Wong Lau, Chung Hang Jonathan Choi
Summary: A folic acid-conjugated gold nanoparticle has been developed for the treatment of tubulointerstitial fibrosis in chronic kidney disease. This nanoparticle can selectively transport into renal tubules and treat fibrosis more effectively than standard therapy. The size of the nanoparticle and the disease stage determine its delivery to the fibrotic kidney.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Analytical
Tao Xie, Pan Li, Jiazheng Wang, Ronglu Dong, Liangbao Yang
Summary: The catassembly method allows for the rapid and simple self-assembly of highly repeatable large-scale multilayers with small nanoparticles. The plasmonic multilayers formed using this method demonstrate high sensitivity and stability for SERS sensing applications.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
He Gao, Pei Wu, Pei Song, Bin Kang, Jing-Juan Xu, Hong-Yuan Chen
Summary: Plasmonic nanoparticles like gold and silver have potential as nanoprobes for biological sensing and imaging, with a demand for small gold nanoparticles (Au NPs) comparable in size to quantum dots and fluorescent proteins. Very small nanoparticles below the Rayleigh limit are difficult to visualize using light scattering with a dark-field microscope, and while a photothermal microscope can detect them, its imaging speed is too slow for live cell processes. The absorption modulated scattering microscopy (AMSM) method allows for imaging sub-10 nm Au NPs within a cellular medium, offering sensitivity similar to photothermal microscopy but with a much faster imaging speed suitable for dynamic tracking of small nanoparticles in living cells.
Article
Chemistry, Analytical
Juan Zhou, Pan-Ling Zhou, Qi Shen, Saud Asif Ahmed, Xiao-Tong Pan, Hai-Ling Liu, Xin-Lei Ding, Jian Li, Kang Wang, Xing-Hua Xia
Summary: Probing the orientation and oxygenation state of single molecules using surface enhanced Raman scattering (SERS) can provide multidimensional structural information, bridging the primary sequence and advanced structure of single molecules. This study demonstrates the high detection sensitivity of sub-10 nm conical gold nanopores for detecting orientations and states of single molecules.
ANALYTICAL CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Pei Zeng, Yuting Zhou, Zhiwen Shu, Huikang Liang, Xiaoqing Zhang, Yiqin Chen, Huigao Duan, Mengjie Zheng
Summary: This study successfully fabricated suspended metallic nanodimers with tiny gaps, which exhibited excellent sensitivity for surface-enhanced Raman spectroscopy detection. The 3D elevated suspended metallic dimers achieved higher SERS enhancement factors compared to other types of metallic nanostructures, showing promise for high-sensitivity SERS detection and other plasmonic applications.
Article
Chemistry, Analytical
Qi Shen, Pan-Ling Zhou, Bin-Tong Huang, Juan Zhou, Hai-Ling Liu, Saud Asif Ahmed, Xin-Lei Ding, Jian Li, Yue-Ming Zhai, Kang Wang
Summary: Gold nanopore is promising for single molecule sequencing, and there is an urgent need for small and size-controllable nanopores. By attaching gold nanoplates to glass nanopipettes using sulfhydryl silane, single molecule detection has been successfully achieved.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Sihai Luo, Andrea Mancini, Enkui Lian, Wenqi Xu, Rodrigo Berte, Yi Li
Summary: This patterning method based on nanosphere lithography and adhesion lithography enables large-scale fabrication of 10 nm annular gap arrays on large areas with excellent reproducibility and high SERS performance. The technique also showcases an effective wearable SERS contact lens for glucose detection.
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.
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)
