Article
Polymer Science
Sjoerd J. Rijpkema, Rik van Egeraat, Wei Li, Daniela A. Wilson
Summary: This study reports a synthesis method for stable and catalytically active polymer vesicle nanoreactors. By cross-linking the polymer vesicle membranes, the stability and permeability issues are addressed, allowing the incorporation of functional handles. Additionally, co-assembly with specific ratios of polymers also results in the formation of pores, further expanding the application of this nanoreactor.
Article
Chemistry, Multidisciplinary
Xin Han, Chenxing Guo, Chen Xu, Linlin Shi, Binghui Liu, Zhe Zhang, Qixia Bai, Bo Song, Fangfang Pan, Shuai Lu, Xinju Zhu, Heng Wang, Xin-Qi Hao, Mao-Ping Song, Xiaopeng Li
Summary: We have successfully designed and synthesized two series of metallo-supramolecular octahedral cages based on the self-assembly of modified tripyridyl ligands. These cages have good water solubility and are capable of mediating visible-light-promoted reactions.
Review
Chemistry, Inorganic & Nuclear
Peiyuan Qu, Michael Kuepfert, Eman Ahmed, Fangbei Liu, Marcus Weck
Summary: Cross-linked micelles have shown promise as catalyst supports, with improved structural stability, catalyst recovery, and chemical diversity compared to their uncross-linked counterparts. The physicochemical properties differ when the shell or core-domain is cross-linked, impacting catalysis. Initially designed for single catalytic entities, shell cross-linked micelles and core cross-linked micelles have since been used for compartmentalizing catalysts in non-orthogonal tandem catalysis and as phase transfer agents in biphasic catalysis. Challenges and new design trends for advanced micellar nanoreactors are currently being discussed in this field.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Review
Nanoscience & Nanotechnology
Jordan H. Swisher, Liban Jibril, Sarah Hurst Petrosko, Chad A. Mirkin
Summary: Nanoreactors are promising tools for synthesizing nanoparticles by isolating chemical precursors within confined spaces. They can be prepared by solution-based or substrate-confined strategies. Current research has expanded the focus beyond pure synthesis to creating large and complex libraries of materials and exploring the materials genome through high-throughput screening techniques.
NATURE REVIEWS MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
He Jia, Zehan Chen, Shanshan Yan, Fabio Lucaccioni, Zdravko Kochovski, Yan Lu, Christian Friebe, Ulrich S. Schubert, Jean-Francois Gohy
Summary: Nanoreactors with hydrophilic porous SiO2 shells and amphiphilic copolymer cores were prepared, which can adjust their hydrophilic/hydrophobic balance and exhibit chameleon-like behavior depending on the environment. The resulting nanoparticles showed excellent colloidal stability in solvents with different polarities. Importantly, with the help of nitroxide radicals attached to the amphiphilic copolymers, the synthesized nanoreactors exhibited high catalytic activity in both polar and nonpolar environments, and achieved high selectivity for the products of benzyl alcohol oxidation in toluene.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Adrian Moreno, Javier Delgado-Lijarcio, Juan C. Ronda, Virginia Cadiz, Marina Galia, Mika H. Sipponen, Gerard Lligadas
Summary: In this study, stimuli-responsive lignin nanoparticles (LNPs) with high lignin content (>75 wt.%) were successfully prepared. These LNPs exhibited reversible swelling behavior and changed their morphology from spherical to core-shell upon alternating O2/N2 bubbling. The introduction of oxygen gas promoted a polarity change on lignin-fluorinated oleic chains, resulting in their migration to the particle surface and enhancing the stability of hy-LNPs under harsh conditions. Additionally, these LNPs were demonstrated to be gas tunable nanoreactors for the synthesis of gold nanoparticles.
Article
Multidisciplinary Sciences
Yuzhu Ma, Hongjin Zhang, Runfeng Lin, Yan Ai, Kun Lan, Linlin Duan, Wenyao Chen, Xuezhi Duan, Bing Ma, Changyao Wang, Xiaomin Li, Dongyuan Zhao
Summary: In this study, a nanodroplet remodeling strategy is proposed for the synthesis of hierarchical multi-chambered mesoporous silica nanoparticles with tunable architectures. The dual-chambered nanoparticles have a high surface area and two interconnected cavities, allowing for separate anchoring of multiple species without mutual interference. Additionally, the dual-chambered mesoporous nanoreactors prepared using this strategy exhibit efficient mass transfer, leading to improved selectivity of the target product.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yanan Wang, Zongheng Gu, Wenhua Peng, Ge Shi, Xiaomeng Zhang, Zhe Cui, Peng Fu, Xiaoguang Qiao, Yanjie He, Minying Liu, Xinchang Pang
Summary: By using amphiphilic star-like copolymers as nano reactors, we successfully prepared ordered silver nanocrystal arrays with precise control and proved that this method can also be applied to fabricate other nanocrystal arrays. This method has the advantages of low cost, simple process, wide applicability and the ability to prepare complex nanostructures to meet different needs.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Erick Arguello Cruz, Pedro Ducos, Zhaoli Gao, Alan T. Charlie Johnson, Dario Niebieskikwiat
Summary: In this study, the effect of ferromagnetic nickel nanoparticles on the magnetotransport properties of chemical-vapor-deposited graphene was characterized. It was found that these nanoparticles greatly suppressed the zero-field peak of resistivity caused by weak localization and enhanced the high-field magnetoresistance. The interaction between the graphene and the nickel nanoparticles was attributed to a local exchange coupling, which did not affect the intrinsic transport parameters of graphene, indicating that the changes in magnetotransport properties were purely magnetic in origin.
Article
Chemistry, Physical
Turbasu Sengupta, Michael Moody, Mrinmoy Das, Arthur C. Reber, S. N. Khanna, M. Samy El-Shall
Summary: The catalytic activity of Pd and PdCu nanoparticle catalysts supported on RGO and GA for the Suzuki cross-coupling reaction was investigated experimentally and computationally. The experimental results showed that the PdCu/RGO catalyst exhibited superior activity, and the computational results supported the better support ability of RGO for the C-C coupling reaction.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Multidisciplinary
Julia R. Dorsheimer, Melissa A. Ashley, Tomislav Rovis
Summary: This study reports a new method to activate alpha-3 degrees amines for deaminative arylation by condensing with an electron-rich aldehyde and combining this reactivity with nickel metallaphotoredox to generate benzylic quaternary centers. The reaction is accelerated by added ammonium salts, which inhibit nickel black formation and accelerate the overall reaction rate. The study demonstrates a broad scope of coupling partners and shows an expedited synthesis of ALK2 inhibitors.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Inorganic & Nuclear
Muhammad Ashraf, Muhammad Sohail Ahmad, Yusuke Inomata, Nisar Ullah, Muhammad Nawaz Tahir, Tetsuya Kida
Summary: Transition metal (TM) catalyzed cross-coupling reactions, particularly Suzuki, Heck, and Sonogashira cross-coupling reactions, using transition metal nanocatalysts have attracted significant attention due to their high surface area, large number of catalytic active centers, and chemical stability. The use of colloidal nanomaterials combines the advantages of homogeneous and heterogeneous catalysts, improving the overall catalytic efficiency and cost. This review article focuses on recent advances in developing nanostructured catalysts derived from transition metals, such as Pd, Pt, Cu, Ag, Ni, Fe, Au, and Zn, and their application in selective carbon-carbon bond-forming reactions.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Multidisciplinary Sciences
Xiaorui Zhao, Xiaojuan Zhu, Kang Wang, Junqian Lv, Shangjun Chen, Guohua Yao, Junyu Lang, Fei Lv, Yinghui Pu, Ruoou Yang, Bingsen Zhang, Zheng Jiang, Ying Wan
Summary: Traditional approaches for transition-metal catalyzed oxidative cross-coupling reactions rely on sp(2)-hybridized starting materials. Here the authors report a novel heterogeneous Pd-catalyzed radical relay method for the conversion of a heteroarene C(sp(3))-H bond into ethers with high efficiency and selectivity.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Biomaterials
Han Yang, Xiang Gu, Yan Li, Ke Zhang, Xihong Liu, Chengyao Huang, Yu Ren, Chao Qi, Kaiyong Cai
Summary: The study presents a multifunctional nanoreactor that possesses the capabilities of nutrient consumption, generation of reactive oxygen species (ROS), and promotion of angiogenesis for antibacterial effects and skin wound repair. The nanoreactor is able to consume bacterial nutrients through oxidation reactions and kill bacteria through a Fenton-like reaction, while promoting angiogenesis for accelerated wound healing by releasing Zn2+.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Article
Chemistry, Physical
Tianci Liang, Yanan Wang, Ge Shi, Zhe Cui, Peng Fu, Xiaoguang Qiao, Yanjie He, Minying Liu, Xinchang Pang
Summary: The study reported a facile and efficient synthesis method for preparing crystalline TiO2 nanorings based on multiarm, starlike amphiphilic polystyrene-b-poly(acrylic acid) diblock copolymers as nanoreactors. The living nature of ATRP enabled the precise preparation of diblock copolymer nanoreactors, allowing tailored control over the resulting TiO2 nanorings' inner diameter and wall thickness that conventional methods cannot achieve.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
