Review
Chemistry, Analytical
Sonia, Komal, Shrikant Kukreti, Mahima Kaushik
Summary: Gold nanoclusters with core size below 2 nm exhibit unique physical and chemical properties, synthesized with the assistance of templates or ligands for stability and high quantum yield, enabling diverse applications across interdisciplinary fields.
Article
Chemistry, Multidisciplinary
Olivier Gazil, Nick Virgilio, Fabienne Gauffre
Summary: In this study, a novel method for synthesizing metal nanoparticle-shells and continuous shells at the liquid/liquid interface using the Ouzo emulsion system is reported. Control over the size of the nanoparticle-shells was achieved by the addition of a water-soluble polymer during synthesis.
Article
Materials Science, Multidisciplinary
Jiangnan Yuan, Shenfei Zong, Yun Liu, Zhuyuan Wang, Yiping Cui
Summary: The article presents a blinking nanoprobe based on ultra-small silica nanospheres, which has stable chemical properties, excellent fluorescence switching behavior, and better localization precision, suitable for single molecule localization imaging.
Article
Chemistry, Multidisciplinary
Belen Rubio-Ruiz, Ana M. Perez-Lopez, Laura Uson, M. Carmen Ortega-Liebana, Teresa Valero, Manuel Arruebo, Jose L. Hueso, Victor Sebastian, Jesus Santamaria, Asier Unciti-Broceta
Summary: Bioorthogonal metallocatalysis allows for nonenzymatic catalytic transformations in living environments. However, most metals are deactivated by reactive biomolecules inside cells, limiting their catalytic activity. In this study, cytocompatible alloyed AuPd nanoparticles were developed for efficient bioorthogonal depropargylations in biological media. Encapsulation of the nanoparticles in mesoporous silica nanorods or a biodegradable PLGA matrix enhanced their intracellular catalytic performance and enabled the release of anticancer drug paclitaxel inside cancer cells. This work demonstrates the potential of nanoalloy encapsulation for mediating new-to-life reactions in cells.
Article
Nanoscience & Nanotechnology
Tianzi Geng, Lining Zhao, Di Wu, Hongxin Zhang, Xiaolong Zhao, Meng Jiao, Leyong Zeng
Summary: In this study, ultrasmall AuNC bombined with BSA nanospheres to form stable and biocompatible AuNCs@BSA nanoprobes, which showed enhanced fluorescence emission and singlet oxygen yield compared to single AuNCs. The nanoprobes exhibited lower cytotoxicity, stronger cellular uptake, and significantly improved cell viability and tumor elimination in PDT applications. The results demonstrated that AuNCs@BSA;nanoprobes have great potential for efficient PDT due to their safety and reliability.
ACS APPLIED NANO MATERIALS
(2021)
Article
Multidisciplinary Sciences
Jianqin Wan, Jiahao Liang, Shiyun Xian, Xiao Gong, Hangxiang Wang
Summary: This study designed and prepared solid-state fluorescent organosilica nanoparticles (ONs) which can be applied in fingerprint detection, white light-emitting diodes (WLEDs) fabrication, and cellular imaging. The ultrasmall ONs specifically localized to lysosomes, making them potential candidates for biological and photoelectric applications.
JOURNAL OF ADVANCED RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zhi-Peng Han, Shiqi Wang, Qiming Sun, Xiao-Ping Xu, Shun-Jun Ji
Summary: A series of azoxy compounds were constructed via facile coupling reactions using cost-effective N-methoxyformamide and nitroso compounds over Cu-based catalysts, with high product yields and excellent tolerance of functional groups. A mesoporous silica nanosphere-encapsulated ultrasmall Cu (Cu@MSN) catalyst was developed and exhibited remarkably enhanced catalytic activity and superior recycling stability compared to copper salt catalysts. This work provides a green and efficient method for the construction of azoxy compounds and opens up new prospects for the application of nanoporous materials confined metal catalysts in organic synthesis.
Article
Chemistry, Physical
Zongcheng Miao, Yuzhen Zhao, Yi Luan, Xin Du
Summary: The study successfully utilized aminopropyl-modified dendritic porous silica nanospheres as carriers to prepare a nanocomposite with ultrasmall Pt NPs, demonstrating excellent structural stability. This provides new insights into the design of supported nanocatalysts.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Review
Chemistry, Multidisciplinary
Ge Yang, Ziping Wang, Fanglin Du, Fuyi Jiang, Xun Yuan, Jackie Y. Y. Ying
Summary: Ultrasmall coinage metal nanoclusters (<3 nm) with atomically precise size and engineered properties have emerged as a novel class of theranostic probes. This Perspective article examines the engineered functions and physicochemical properties of metal nanoclusters for theranostic applications, as well as their use in diagnosing and treating various diseases. The article also discusses the challenges and opportunities in the future development of metal nanoclusters for theranostic applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Multidisciplinary
Zhihe Liu, Zhennan Wu, Qiaofeng Yao, Yitao Cao, Osburg Jin Huang Chai, Jianping Xie
Summary: This review article focuses on the correlation between the structures, physical and chemical properties of metal nanoclusters and their applications, highlighting the basic principles of structure- and property-oriented applications of metal nanoclusters. It provides guidance for the design of metal nanoclusters with desirable properties to meet application needs.
Article
Chemistry, Analytical
Yanting Shen, Yuhui Zhao, Yanyan Zhu, Jing Wang
Summary: A novel colorimetric/fluorescent dual-mode nanosensor for Hg2+ detection was developed using expanded mesoporous silica-encapsulated ultrasmall platinum nanoclusters. The sensor showed improved peroxidase-like and stable fluorescent activities, with excellent selectivity and reliability for detecting Hg2+ in Pueraria lobata.
Article
Chemistry, Physical
Shengguang Gao, Li Zhang, Haitao Yu, Huaqing Wang, Zhiwei He, Kun Huang
Summary: A silica-protection strategy was utilized to fabricate well-naked palladium nanoparticles encapsulated within hollow porous carbon nanospheres (Pd@HPCNs) by carbonization of palladium-encapsulated hyper-crosslinking hollow porous polymeric nanospheres. The resulting Pd@HPCNs exhibited highly size-selective catalysis performance toward oxidation of various alcohols, making it a promising catalyst candidate for future practical applications. This method can be further developed into a general strategy to immobilize various metal or metal oxide into HPCNs nanoreactors.
Article
Chemistry, Multidisciplinary
Mingyue Cui, Manjing Li, Jinhua Wang, Runzhi Chen, Zhaojian Xu, Jingyang Wang, Junfei Han, Guyue Hu, Rong Sun, Xin Jiang, Bin Song, Yao He
Summary: Zinc-doped silica nanospheres prepared using a hydrothermal synthetic strategy exhibit stable fluorescence and long-lived room-temperature phosphorescence properties, with high water solubility and excellent stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Dong Liu, Zizhu Wang, Yirui Ma, Caiyun Xu, Shenghu Zhou
Summary: In this study, Au-CuxOy hybrid nanoparticle-encapsulated hollow porous silica nanospheres (Au-CuxOy in HPSNs) were synthesized by immobilizing the catalytic functionality inside hollow cavities using polyethyleneimine in a reverse microemulsion system. Compared to individual Au and CuxOy, the prepared Au-CuxOy in HPSNs showed significantly improved catalytic efficiency for the reduction of various nitrophenols with NaBH4. The enhanced performance can be attributed to the synergistic effect between Au and CuxOy, as well as the protection provided by the silica shells for the inner Au-CuxOy.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Joaquin E. Martinez Porcel, Maria S. Churio, Sergio E. Moya, Valeria B. Arce, Daniel O. Martire
Summary: The interaction between plasmonic nanoparticles and dyes can greatly affect the fluorescence and generation of ROS. In this study, SiO2@Au NPs were prepared and their ability to enhance fluorescence emission and ROS generation was evaluated. The results showed that SiO2@Au NPs can enhance the fluorescence emission of dyes through different mechanisms, but do not affect ROS generation. This study demonstrates the potential application of SiO2@Au NPs in fluorescence-sensing methods and bioimaging.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
