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Song X, Hao C, Li Y, Li Y, Dong H, Wei Q, Wei M, Li H, Zhao L. Chiral inorganic nanomaterials in the tumor microenvironment: A new chapter in cancer therapy. Pharmacol Res 2024; 208:107386. [PMID: 39216840 DOI: 10.1016/j.phrs.2024.107386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Revised: 08/20/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024]
Abstract
Chirality plays a crucial function in the regulation of normal physiological processes and is widespread in organisms. Chirality can be imparted to nanomaterials, whether they are natural or manmade, through the process of asymmetric assembly and/or grafting of molecular chiral groups or linkers. Chiral inorganic nanomaterials possess unique physical and chemical features that set them apart from regular nanomaterials. They also have the ability to interact with cells and tissues in a specific manner, making them useful in various biomedical applications, particularly in the treatment of tumors. Despite the growing amount of research on chiral inorganic nanomaterials in the tumor microenvironment (TME) and their promising potential applications, there is a lack of literature that comprehensively summarizes the intricate interactions between chiral inorganic nanomaterials and TME. In this review, we introduce the fundamental concept, classification, synthesis methods, and physicochemical features of chiral inorganic nanomaterials. Next, we briefly outline the components of TME, such as T cells, macrophages, dendritic cells, and weak acids, and then discuss the anti-tumor effects of several chiral inorganic nanoparticles targeting these components and their potential for possible application during cancer therapy. Finally, the present challenges faced by chiral inorganic nanomaterials in cancer treatment and their future areas of investigation are disclosed.
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Affiliation(s)
- Xueyi Song
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
| | - Chenjing Hao
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
| | - Yao Li
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
| | - Yunong Li
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
| | - Hongzhi Dong
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
| | - Qian Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
| | - Minjie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
| | - Heran Li
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China.
| | - Lin Zhao
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, PR China; Liaoning Key Laboratory of molecular targeted anti-tumor drug development and evaluation, China Medical University, Shenyang 110122, PR China.
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2
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Chen J, Pang M, Yang M, Gao F, Zhang B, Zang L, Li Z, Guo P. Chiral Effect on the Electrochemistry of Magnetic Ferrite Colloidal Nanocrystal Assembly Modified by Amino Acids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:15171-15177. [PMID: 38980828 DOI: 10.1021/acs.langmuir.4c01525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Chirality on the molecular or nanometer scale is particularly significant in chemistry, materials science, and biomedicine. Chiral electrochemical reactions on solid surfaces are currently a hot research topic. Herein, a chiral solid surface is constructed in aqueous solutions by mixing chiral molecules, d- and l-glutamic, with γ-Fe2O3 and Fe3O4 nanoparticles (NPs) and MnFe2O4 colloidal nanocrystal assembly (CNA). Cyclic voltammetry and differential pulse voltammetry measurements are conducted in a phosphate buffer solution (PBS) containing ascorbic acid (AA) or isoascorbic acid (IAA), and a chiral effect appears on the electroreduction of ferric ions of amino acid-modified magnetic samples. A negative or positive potential shift is observed, respectively, for magnetic structures modified by l- and d-glutamic acid in aqueous AA electrolyte, while the opposite is observed for these samples in IAA electrolyte. The reduction peak current increases by 0.8-1.2 times for the electrodes modified with l- and d-glutamate molecules, improving the electron transport efficiency. The chiral effect is absent when the electrolytes contain achiral uric acid or dopamine, or even chiral l-/d-/ld-tartaric acid. The chiral recognition between d-/l-glutamic acid and AA/IAA at the electrochemical interface is suggested to be related to their spinal configurations. These observations will be helpful for the rational design of inorganic functional chiral micro/nanostructures.
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Affiliation(s)
- Jianyu Chen
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Mingyuan Pang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Min Yang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Fahui Gao
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Ben Zhang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Lei Zang
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Ze Li
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Peizhi Guo
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
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3
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Duan Y, Che S. Chiral Mesostructured Inorganic Materials with Optical Chiral Response. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2205088. [PMID: 36245314 DOI: 10.1002/adma.202205088] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Fabricating chiral inorganic materials and revealing their unique quantum confinement-determined optical chiral responses are crucial tasks in the multidisciplinary fields of chemistry, physics, and biology. The field of chiral mesostructured inorganic materials started from the synthesis of individual nanocrystals and evolved to include their assembly from metals, semiconductors, ceramics, and inorganic salts endowed with various chiral structures ranging from atomic to micron scales. This tutorial review highlights the recent research on chiral mesostructured inorganic materials, especially the novel expression of mesostructured chirality and endowed optical chiral response, and it may inspire us with new strategies for the design of chiral inorganic materials and new opportunities beyond the traditional applications of chirality. Fabrication methods for chiral mesostructured inorganic materials are classified according to chirality type, scale, and symmetry-breaking mechanism. Special attention is given to highlight systems with original discoveries, exceptional phenomena, or unique mechanisms of optical chiral response for left- and right-handedness.
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Affiliation(s)
- Yingying Duan
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Matrix Composite, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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4
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Jiang L, Mao X, Liu C, Guo X, Deng R, Zhu J. 2D superlattices via interfacial self-assembly of polymer-grafted Au nanoparticles. Chem Commun (Camb) 2023; 59:14223-14235. [PMID: 37962523 DOI: 10.1039/d3cc04587k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Nanoparticle (NP) superlattices are periodic arrays of nanoscale building blocks. Because of the collective effect between functional NPs, NP superlattices can exhibit exciting new properties that are distinct from those of individual NPs or corresponding bulk materials. In particular, two-dimensional (2D) NP superlattices have attracted increasing attention due to their emerging applications in micro/opto-electronics, catalysis, sensing, and other fields. Among various preparation methods, evaporation-induced interfacial self-assembly has become the most popular method for preparing 2D NP superlattices because it is a simple, low-cost, and scalable process that can be widely applied to various NPs. Introducing soft ligands, such as polymers, can not only provide convenience in controlling the self-assembly process and tuning superlattice structures but also improve the properties of 2D NP superlattices. This feature article focuses on the methods of evaporation-induced self-assembly of polymer-grafted Au NPs into free-standing 2D NP superlattice films at air/liquid interfaces and 2D NP superlattice coatings on substrates, followed by studies on in situ tracking of the self-assembly evolution process through small-angle X-ray scattering. Their application in nano-floating gate memory devices is also included. Finally, the challenges and perspectives of this direction are discussed.
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Affiliation(s)
- Liangzhu Jiang
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xi Mao
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Changxu Liu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Xiaodan Guo
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Renhua Deng
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage of the Ministry of Education School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
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Lavagna E, Salassi S, Bochicchio D, Rossi G. Dumbbells, chains, and ribbons: anisotropic self-assembly of isotropic nanoparticles. NANOSCALE 2023; 15:15153-15160. [PMID: 37671876 PMCID: PMC10540935 DOI: 10.1039/d3nr02384b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/16/2023] [Indexed: 09/07/2023]
Abstract
Functionalizing the surface of metal nanoparticles can assure their stability in solution or mediate their self-assembly into aggregates with controlled shapes. Here we present a computational study of the colloidal aggregation of gold nanoparticles (Au NPs) isotropically functionalized by a mixture of charged and hydrophobic ligands. We show that, by varying the relative proportion of the two ligands, the NPs form anisotropic aggregates with markedly different topologies: dumbbells, chains, or ribbons. In all cases, two kinds of connections keep the aggregates together: hydrophobic bonds and ion bridges. We show that the anisotropy of the aggregates derives from the NP shell reshaping due to the formation of the hydrophobic links, while ion bridges are accountable for the "secondary structure" of the aggregates. Our findings provide a general physical principle that can also be exploited in different self-assembled systems: anisotropic/directional aggregation can be achieved starting from isotropic objects with a soft, deformable surface.
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Affiliation(s)
- Enrico Lavagna
- Physics Department, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy.
| | - Sebastian Salassi
- Physics Department, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy.
| | - Davide Bochicchio
- Physics Department, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy.
| | - Giulia Rossi
- Physics Department, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy.
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6
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Abstract
The nanoscale properties of nanomaterials, especially nanoparticles, including size, shape, and surface charge, have been extensively studied for their impact on nanomedicine. Given the inherent chiral nature of biological systems and their high enantiomeric selectivity, there is rising interest to manipulate the chirality of nanomaterials to enhance their biomolecular interactions and improve nanotherapeutics. Chiral nanostructures are currently more prevalently used in biosensing and diagnostic applications owing to their distinctive physical and optical properties, but they hold great promise for use in nanomedicine. In this Review, we first discuss stereospecific interactions between chiral nanomaterials and biomolecules before comparing the synthesis and characterization methods of chiral nanoparticles and nanoassemblies. Finally, we examine the applications of chiral nanotherapeutics in cancer, immunomodulation, and neurodegenerative diseases and propose plausible mechanisms in which chiral nanomaterials interact with cells for biological manipulation. This Review on chirality is a timely reminder of the arsenal of nanoscale modifications to boost research in nanotherapeutics.
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Affiliation(s)
- Yuwen Wang
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583
| | - Andy Tay
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583
- Institute of Health Innovation and Technology, National University of Singapore, Singapore 117599
- Tissue Engineering Program, National University of Singapore, Singapore 117510
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7
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Turali-Emre ES, Emre AE, Vecchio DA, Kadiyala U, VanEpps JS, Kotov NA. Self-Organization of Iron Sulfide Nanoparticles into Complex Multicompartment Supraparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211244. [PMID: 36965166 PMCID: PMC10265277 DOI: 10.1002/adma.202211244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/02/2023] [Indexed: 06/09/2023]
Abstract
Self-assembled compartments from nanoscale components are found in all life forms. Their characteristic dimensions are in 50-1000 nm scale, typically assembled from a variety of bioorganic "building blocks". Among the various functions that these mesoscale compartments carry out, protection of the content from the environment is central. Finding synthetic pathways to similarly complex and functional particles from technologically friendly inorganic nanoparticles (NPs) is needed for a multitude of biomedical, biochemical, and biotechnological processes. Here, it is shown that FeS2 NPs stabilized by l-cysteine self-assemble into multicompartment supraparticles (mSPs). The NPs initially produce ≈55 nm concave assemblies that reconfigure into ≈75 nm closed mSPs with ≈340 interconnected compartments with an average size of ≈5 nm. The intercompartmental partitions and mSP surface are formed primarily from FeS2 and Fe2 O3 NPs, respectively. The intermediate formation of cup-like particles enables encapsulation of biological cargo. This capability is demonstrated by loading mSPs with DNA and subsequent transfection of mammalian cells. Also it is found that the temperature stability of the DNA cargo is enhanced compared to the traditional delivery vehicles. These findings demonstrate that biomimetic compartmentalized particles can be used to successfully encapsulate and enhance temperature stability of the nucleic acid cargo for a variety of bioapplications.
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Affiliation(s)
- E. Sumeyra Turali-Emre
- Biomedical Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute University of Michigan; University of Michigan; Ann Arbor, MI, 48109, USA
| | - Ahmet E. Emre
- Biomedical Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute University of Michigan; University of Michigan; Ann Arbor, MI, 48109, USA
| | - Drew A. Vecchio
- Chemical Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute University of Michigan; University of Michigan; Ann Arbor, MI, 48109, USA
| | - Usha Kadiyala
- Department of Emergency Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute University of Michigan; University of Michigan; Ann Arbor, MI, 48109, USA
| | - J. Scott VanEpps
- Department of Emergency Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
- Macromolecular Science and Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute University of Michigan; University of Michigan; Ann Arbor, MI, 48109, USA
| | - Nicholas A. Kotov
- Biomedical Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA
- Chemical Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA
- Materials Science and Engineering Department, University of Michigan Ann Arbor, MI, 48109, USA
- Macromolecular Science and Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute University of Michigan; University of Michigan; Ann Arbor, MI, 48109, USA
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8
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Basu S, Amdursky N. The Role of Surface Groups in Dictating the Chiral-Solvent-Induced Assembly of Carbon Dots into Structures Exhibiting Circularly Polarized Luminescence. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205880. [PMID: 36504318 DOI: 10.1002/smll.202205880] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Here, the use of achiral nanoparticles and solvent-induced chirality transfer is combined for the making of large structures exhibiting chiroptical properties in the form of circularly polarized luminescence (CPL). The nanoparticles that the authors use are carbon dots (C-Dots) that are known for their bright luminescence and the ability to tune their surface moieties by using different precursors in their synthesis. Here, the result of adding the chiral solvent limonene into an aqueous solution of various C-Dots is explored, differentiated by their surface group. It is shown that only nitrogen-containing C-Dots with amine functional groups see the emergence of a CPL signal and the formation of a large fibrillar assembled structure. The various forces happening in the interface between the C-Dots and the limonene phase and the role of the amine groups in both the chirality transfer interactions and the interactions between C-Dots in the assembly process are discussed, whereas these two processes intertwine with each other. The ability to form fluorescent chiral structures exhibiting CPL from achiral nanoparticles and the understanding of the various interactions in this process are both important to the rationale design of any supramolecular chiral assemblies.
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Affiliation(s)
- Srestha Basu
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Nadav Amdursky
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
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9
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Chiral assemblies of pinwheel superlattices on substrates. Nature 2022; 612:259-265. [PMID: 36443603 DOI: 10.1038/s41586-022-05384-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 09/23/2022] [Indexed: 11/30/2022]
Abstract
The unique topology and physics of chiral superlattices make their self-assembly from nanoparticles highly sought after yet challenging in regard to (meta)materials1-3. Here we show that tetrahedral gold nanoparticles can transform from a perovskite-like, low-density phase with corner-to-corner connections into pinwheel assemblies with corner-to-edge connections and denser packing. Whereas corner-sharing assemblies are achiral, pinwheel superlattices become strongly mirror asymmetric on solid substrates as demonstrated by chirality measures. Liquid-phase transmission electron microscopy and computational models show that van der Waals and electrostatic interactions between nanoparticles control thermodynamic equilibrium. Variable corner-to-edge connections among tetrahedra enable fine-tuning of chirality. The domains of the bilayer superlattices show strong chiroptical activity as identified by photon-induced near-field electron microscopy and finite-difference time-domain simulations. The simplicity and versatility of substrate-supported chiral superlattices facilitate the manufacture of metastructured coatings with unusual optical, mechanical and electronic characteristics.
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Vázquez‐Nakagawa M, Rodríguez‐Pérez L, Martín N, Herranz MÁ. Supramolecular Assembly of Edge Functionalized Top-Down Chiral Graphene Quantum Dots. Angew Chem Int Ed Engl 2022; 61:e202211365. [PMID: 36044587 PMCID: PMC9828669 DOI: 10.1002/anie.202211365] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Indexed: 01/12/2023]
Abstract
The construction of supramolecular assemblies of heterogeneous materials at the nanoscale is an open challenge in science. Herein, new chiral graphene quantum dots (GQDs) prepared by amidation reaction introducing chiral amide groups and pyrene moieties into the periphery of GQDs are described. The analytical and spectroscopic data show an efficient chemical functionalization and the morphological study of the supramolecular ensembles using SEM and AFM microscopies reveals the presence of highly ordered fibers of several micrometers length. Fluorescence studies, using emission spectroscopy and confocal microscopy, reveal that the fibers stem from the π-π stacking of both pyrenes and GQDs, together with the hydrogen bonding interactions of the amide groups. Circular dichroism analysis supports the chiral nature of the supramolecular aggregates.
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Affiliation(s)
- Mikiko Vázquez‐Nakagawa
- Department of Organic ChemistryFaculty of ChemistryUniversidad Complutense de Madrid28040MadridSpain
| | - Laura Rodríguez‐Pérez
- Department of Organic ChemistryFaculty of ChemistryUniversidad Complutense de Madrid28040MadridSpain
| | - Nazario Martín
- Department of Organic ChemistryFaculty of ChemistryUniversidad Complutense de Madrid28040MadridSpain
- IMDEA-Nanocienciac/Faraday 9, Campus Cantoblanco28049MadridSpain
| | - M. Ángeles Herranz
- Department of Organic ChemistryFaculty of ChemistryUniversidad Complutense de Madrid28040MadridSpain
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11
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Vázquez-Nakagawa M, Rodríguez-Pérez L, Martin N, Herranz MÁ. Supramolecular Assembly of Edge Functionalized Top‐down Chiral Graphene Quantum Dots. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202211365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Nazario Martin
- University Complutense Faculty of Chemistry 28040 Madrid SPAIN
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12
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Biomimetic non-classical crystallization drives hierarchical structuring of efficient circularly polarized phosphors. Nat Commun 2022; 13:3339. [PMID: 35680921 PMCID: PMC9184729 DOI: 10.1038/s41467-022-30989-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 05/24/2022] [Indexed: 11/27/2022] Open
Abstract
Hierarchically structured chiral luminescent materials hold promise for achieving efficient circularly polarized luminescence. However, a feasible chemical route to fabricate hierarchically structured chiral luminescent polycrystals is still elusive because of their complex structures and complicated formation process. We here report a biomimetic non-classical crystallization (BNCC) strategy for preparing efficient hierarchically structured chiral luminescent polycrystals using well-designed highly luminescent homochiral copper(I)-iodide hybrid clusters as basic units for non-classical crystallization. By monitoring the crystallization process, we unravel the BNCC mechanism, which involves crystal nucleation, nanoparticles aggregation, oriented attachment, and mesoscopic transformation processes. We finally obtain the circularly polarized phosphors with both high luminescent efficiency of 32% and high luminescent dissymmetry factor of 1.5 × 10−2, achieving the demonstration of a circularly polarized phosphor converted light emitting diode with a polarization degree of 1.84% at room temperature. Our designed BNCC strategy provides a simple, reliable, and large-scale synthetic route for preparing bright circularly polarized phosphors. Chiral emitters with high photoluminescence quantum yield are desirable for use in circularly polarized LEDs. The authors demonstrate the transfer of chirality from nanoscale copper iodide clusters to microscale chiral luminescent polycrystals by non-classical crystallization.
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13
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Ding K, Ai J, Duan Y, Han L, Qu Z, Che S. Mechanism of diastereoisomer-induced chirality of BiOBr. Chem Sci 2022; 13:2450-2455. [PMID: 35310507 PMCID: PMC8864704 DOI: 10.1039/d1sc05601h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 02/02/2022] [Indexed: 11/29/2022] Open
Abstract
Chiral molecule-driven asymmetric structures are known to be elusive because of the intriguing chirality transfer from chiral molecules to achiral species. Here, we found that the chiral assembly of BiOBr is independent of the chirality of the organic molecular inducer but dependent on geometric structural matching between the inducer and inorganic species. Diastereoisomeric sugar alcohols (DSAs) with identical numbers of carbon chiral centers and functional groups but with different R/S configurations and optical activities (OAs) were chosen as symmetry-breaking agents for inducing chiral mesostructured BiOBr films (CMBFs) under hydrothermal conditions. Multiple levels of chirality with different handedness were identified in the CMBFs. Density functional theory (DFT) calculations and molecular dynamics (MD) simulations suggest that asymmetric defects in the Br–Bi tetragonal cone caused by physically adsorbed DSAs on the surfaces of the BiOBr crystals are the geometric basis for triggering the chiral twist in the BiOBr monolayer. Our findings provide new insights for understanding the origin of chirality and the chiral transfer mechanism underlying the assembly of achiral species. The chirality transfer is dependent on geometrical matching between the chiral inducer and inorganic species.![]()
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Affiliation(s)
- Kun Ding
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Composites Materials, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Jing Ai
- School of Chemical Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Yingying Duan
- School of Chemical Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Lu Han
- School of Chemical Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Zhibei Qu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Composites Materials, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China .,Department of Medicinal Chemistry, School of Pharmacy, Fudan University 826 Zhangheng Road Shanghai 201203 P. R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Composites Materials, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China .,School of Chemical Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
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14
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Zhang M, Wang Y, Zhou Y, Yuan H, Guo Q, Zhuang T. Amplifying inorganic chirality using liquid crystals. NANOSCALE 2022; 14:592-601. [PMID: 34850801 DOI: 10.1039/d1nr06036h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Chiral inorganic nanostructures have drawn extensive attention thanks to their unique physical properties as well as multidisciplinary applications. Amplifying inorganic chirality using liquid crystals (LCs) is an efficient way to enhance the parented inorganic asymmetry owing to chirality transfer. Herein, the universal synthetic methods and structural characterizations of chiral inorganic-doped LC hybrids are introduced. Additionally, the current progress and status of recent experiment and theory research about chiral interactions between inorganic nanomaterials (e.g. metal, semiconductor, perovskite, and magnetic oxide) and LCs are summarized in this review. We further present representative applications of these new hybrids in the area of encryption, sensing, optics, etc. Finally, we provide perspectives on this field in terms of material variety, new synthesis, and future practice. It is envisaged that LCs will act as a pivotal part in the amplification of inorganic chirality with versatile applications.
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Affiliation(s)
- Mingjiang Zhang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Yaxin Wang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Yajie Zhou
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Honghan Yuan
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
| | - Qi Guo
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Taotao Zhuang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
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15
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Vila-Liarte D, Kotov NA, Liz-Marzán LM. Template-assisted self-assembly of achiral plasmonic nanoparticles into chiral structures. Chem Sci 2022; 13:595-610. [PMID: 35173926 PMCID: PMC8768870 DOI: 10.1039/d1sc03327a] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/02/2021] [Indexed: 12/12/2022] Open
Abstract
The acquisition of strong chiroptical activity has revolutionized the field of plasmonics, granting access to novel light-matter interactions and revitalizing research on both the synthesis and application of nanostructures. Among the different mechanisms for the origin of chiroptical properties in colloidal plasmonic systems, the self-assembly of achiral nanoparticles into optically active materials offers a versatile route to control the structure-optical activity relationships of nanostructures, while simplifying the engineering of their chiral geometries. Such unconventional materials include helical structures with a precisely defined morphology, as well as large scale, deformable substrates that can leverage the potential of periodic patterns. Some promising templates with helical structural motifs like liquid crystal phases or confined block co-polymers still need efficient strategies to direct preferential handedness, whereas other templates such as silica nanohelices can be grown in an enantiomeric form. Both types of chiral structures are reviewed herein as platforms for chiral sensing: patterned substrates can readily incorporate analytes, while helical assemblies can form around structures of interest, like amyloid protein aggregates. Looking ahead, current knowledge and precedents point toward the incorporation of semiconductor emitters into plasmonic systems with chiral effects, which can lead to plasmonic-excitonic effects and the generation of circularly polarized photoluminescence.
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Affiliation(s)
- David Vila-Liarte
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo de Miramon 194 20014 Donostia San Sebastián Spain
- Centro de Investigación Biomédica en Red, Biomateriales, Bioingeniería y Nanomedicina (CIBER-BBN) Spain
| | - Nicholas A Kotov
- Department of Chemical Engineering, Materials Science, Department of Biomedical Engineering, University of Michigan Ann Arbor USA
- Biointerfaces Institute, University of Michigan Ann Arbor USA
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA) Paseo de Miramon 194 20014 Donostia San Sebastián Spain
- Centro de Investigación Biomédica en Red, Biomateriales, Bioingeniería y Nanomedicina (CIBER-BBN) Spain
- Ikerbasque, Basque Foundation for Science 48013 Bilbao Spain
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16
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Abstract
Controlled assembly of inorganic nanoparticles with different compositions, sizes and shapes into higher-order structures of collective functionalities is a central pursued objective in chemistry, physics, materials science and nanotechnology. The emerging chiral superstructures, which break spatial symmetries at the nanoscale, have attracted particular attention, owing to their unique chiroptical properties and potential applications in optics, catalysis, biology and so on. Various bottom-up strategies have been developed to build inorganic chiral superstructures based on the intrinsic configurational preference of the building blocks, external fields or chiral templates. Self-assembled inorganic chiral superstructures have demonstrated significant superior optical activity from the strong electric/magnetic coupling between the building blocks, as compared with the organic counterparts. In this Review, we discuss recent progress in preparing self-assembled inorganic chiral superstructures, with an emphasis on the driving forces that enable symmetry breaking during the assembly process. The chiroptical properties and applications are highlighted and a forward-looking trajectory of where research efforts should be focused is discussed.
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17
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Ma J, Huang L, Zhou B, Yao L. Construction and Catalysis Advances of Inorganic Chiral Nanostructures. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22070308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Biswas B, Mitra D, Kp F, Bhat S, Chatterji A, Kumaraswamy G. Rigidity Dictates Spontaneous Helix Formation of Thermoresponsive Colloidal Chains in Poor Solvent. ACS NANO 2021; 15:19702-19711. [PMID: 34890180 DOI: 10.1021/acsnano.1c07048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The formation of helical motifs typically requires specific directional interactions. Here, we demonstrate that isotropic interparticle attraction can drive self-assembly of colloidal chains into thermo-reversible helices, for chains with a critical level of backbone rigidity. We prepare thermoresponsive colloidal chains by cross-linking PNIPAM microgel-coated polystyrene colloids ("monomers"), aligned in an AC electric field. We control the chain rigidity by varying cross-linking time. Above the LCST of PNIPAM, there is an effective attraction between monomers so that the colloidal chains are in a bad solvent. On heating, the chains decrease in size. For the most rigid chains, the decrease is modest and is not accompanied by a change in shape. Much less rigid chains form relatively compact structures, resulting in a large increase in the local monomer density. Unusually, chains with intermediate rigidity spontaneously assemble into helical structures. The chain helicity increases with temperature and plateaus above the collapse transition temperature of the microgel particles. We simulate a minimal model that captures the spontaneous emergence of the helical conformations of the polymeric chain and provides insight into this shape transition. Our work suggests that a purely mechanical instability for semiflexible filaments can drive helix formation, without the need to invoke directional interactions.
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Affiliation(s)
- Bipul Biswas
- PSE Division, CSIR-NCL Pune, Dr. Homi Bhaba Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Debarshi Mitra
- Department of Physics, IISER-Pune, Dr. Homi Bhaba Road, Pune 411008, India
| | - Fayis Kp
- PSE Division, CSIR-NCL Pune, Dr. Homi Bhaba Road, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Suresh Bhat
- PSE Division, CSIR-NCL Pune, Dr. Homi Bhaba Road, Pune 411008, India
| | - Apratim Chatterji
- Department of Physics, IISER-Pune, Dr. Homi Bhaba Road, Pune 411008, India
- Center for Energy Science, IISER-Pune, Dr. Homi Bhaba Road, Pune 411008, India
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19
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Zhang J, Zhu SS, Jiang N. Effect of micro/nanoscaled Ti phosphate/Ti oxide hybrid coating on the osseointegration of Ti implants. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2021; 39:531-539. [PMID: 34636200 DOI: 10.7518/hxkq.2021.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVES This study was performed to fabricate a bionic coating with titanium (Ti) phosphate to promote the osseointegration of Ti substrate implants. METHODS Phosphorylated micro/nanocoating was prepared on the surface of pure titanium (i.e., TiP-Ti) by hydrothermal process under special pressure, and the untreated smooth pure titanium (cp-Ti) was selected as the control. To evaluate the characteristics of the coating surface, scanning electron microscopy, X-ray diffraction, atomic force microscopy, and contact-angle measurement were performed. In addition, the effects of TiP-Ti on the proliferation, adhesion, and differentiation of rat bone marrow mesenchymal stem cells (BMSCs) were investigated by using in vitro cytology. Finally, TiP-Ti implants were implanted into the rat tibia, and the effect of TiP-Ti on the osseointegration in the host was evaluated after 12 weeks. RESULTS The TiP-Ti surface presented a bionic structure with coexisting nanoscale 3D spatial structure and microscale pores. In vitro experiments showed that the BMSCs had enhanced adhesion, proliferation, and osteogenic differentiation on the TiP-Ti surface. Furthermore, in vivo, TiP-Ti showed considerably stronger osseointegration compared with pure titanium, and the ultimate shear strength and maximum pushing force were significantly improved. CONCLUSIONS A bionic structure with TiP-Ti micro/nanoscale coating was successfully fabricated, indicating a promising method for modifying the surface of implants.
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Affiliation(s)
- Jie Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthognathic and Temporomandibular Joint Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Song-Song Zhu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthognathic and Temporomandibular Joint Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Nan Jiang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthognathic and Temporomandibular Joint Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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20
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Liu J, Shadpour S, Prévôt ME, Chirgwin M, Nemati A, Hegmann E, Lemieux RP, Hegmann T. Molecular Conformation of Bent-Core Molecules Affected by Chiral Side Chains Dictates Polymorphism and Chirality in Organic Nano- and Microfilaments. ACS NANO 2021; 15:7249-7270. [PMID: 33734664 DOI: 10.1021/acsnano.1c00527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The coupling between molecular conformation and chirality is a cornerstone in the construction of supramolecular helical structures of small molecules across various length scales. Inspired by biological systems, conformational preselection and control in artificial helical molecules, polymers, and aggregates has guided various applications in optics, photonics, and chiral sorting among others, which are frequently based on an inherent chirality amplification through processes such as templating and self-assembly. The so-called B4 nano- or microfilament phase formed by some bent-shaped molecules is an exemplary case for such chirality amplification across length scales, best illustrated by the formation of distinct nano- or microscopic chiral morphologies controlled by molecular conformation. Introduction of one or more chiral centers in the aliphatic side chains led to the discovery of homochiral helical nanofilament, helical microfilament, and heliconical-layered nanocylinder morphologies. Herein, we demonstrate how a priori calculations of the molecular conformation affected by chiral side chains are used to design bent-shaped molecules that self-assemble into chiral nano- and microfilament as well as nanocylinder conglomerates despite the homochiral nature of the molecules. Furthermore, relocation of the chiral center leads to formation of helical as well as flat nanoribbons. Self-consistent data sets from polarized optical as well as scanning and transmission electron microscopy, thin-film and solution circular dichroism spectropolarimetry, and synchrotron-based X-ray diffraction experiments support the progressive and predictable change in morphology controlled by structural changes in the chiral side chains. The formation of these morphologies is discussed in light of the diminishing effects of molecular chirality as the chain length increases or as the chiral center is moved away from the core-chain juncture. The type of phase (B1-columnar or B4) and morphology of the nano- or microfilaments generated can further be controlled by sample treatment conditions such as by the cooling rate from the isotropic melt or by the presence of an organic solvent in the ensuing colloidal dispersions. We show that these nanoscale morphologies can then organize into a wealth of two- and three-dimensional shapes and structures ranging from flower blossoms to fiber mats formed by intersecting flat nanoribbons.
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Affiliation(s)
- Jiao Liu
- Materials Science Graduate Program, Kent State University, Kent (Ohio) 44242-0001, United States
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent (Ohio) 44242-0001, United States
| | - Sasan Shadpour
- Materials Science Graduate Program, Kent State University, Kent (Ohio) 44242-0001, United States
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent (Ohio) 44242-0001, United States
| | - Marianne E Prévôt
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent (Ohio) 44242-0001, United States
| | - Michael Chirgwin
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent (Ohio) 44242-0001, United States
| | - Ahlam Nemati
- Materials Science Graduate Program, Kent State University, Kent (Ohio) 44242-0001, United States
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent (Ohio) 44242-0001, United States
| | - Elda Hegmann
- Materials Science Graduate Program, Kent State University, Kent (Ohio) 44242-0001, United States
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent (Ohio) 44242-0001, United States
- Department of Biological Sciences, Kent State University, Kent, Ohio 44242-0001, United States
- Brain Health Research Institute, Kent State University, Kent, Ohio 44242-0001, United States
| | - Robert P Lemieux
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Torsten Hegmann
- Materials Science Graduate Program, Kent State University, Kent (Ohio) 44242-0001, United States
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent (Ohio) 44242-0001, United States
- Department of Biological Sciences, Kent State University, Kent, Ohio 44242-0001, United States
- Brain Health Research Institute, Kent State University, Kent, Ohio 44242-0001, United States
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242-0001, United States
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21
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Thayyil Raju L, Koshkina O, Tan H, Riedinger A, Landfester K, Lohse D, Zhang X. Particle Size Determines the Shape of Supraparticles in Self-Lubricating Ternary Droplets. ACS NANO 2021; 15:4256-4267. [PMID: 33601887 PMCID: PMC8023807 DOI: 10.1021/acsnano.0c06814] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Supraparticles are large clusters of much smaller colloidal particles. Controlling the shape and anisotropy of supraparticles can enhance their functionality, enabling applications in fields such as optics, magnetics, and medicine. The evaporation of self-lubricating colloidal ouzo droplets is an easy and efficient strategy to create supraparticles, overcoming the problem of the "coffee-stain effect" during drop evaporation. Yet, the parameters that control the shape of the supraparticles formed in such evaporating droplets are not fully understood. Here, we show that the size of the colloidal particles determines the shape of the supraparticle. We compared the shape of the supraparticles made of seven different sizes of spherical silica particles, namely from 20 to 1000 nm, and of the mixtures of small and large colloidal particles at different mixing ratios. Specifically, our in situ measurements revealed that the supraparticle formation proceeds via the formation of a flexible shell of colloidal particles at the rapidly moving interfaces of the evaporating droplet. The time tc0 when the shell ceases to shrink and loses its flexibility is closely related to the size of particles. A lower tc0, as observed for smaller colloidal particles, leads to a flat pancake-like supraparticle, in contrast to a more curved American football-like supraparticle from larger colloidal particles. Furthermore, using a mixture of large and small colloidal particles, we obtained supraparticles that display a spatial variation in particle distribution, with small colloids forming the outer surface of the supraparticle. Our findings provide a guideline for controlling the supraparticle shape and the spatial distribution of the colloidal particles in supraparticles by simply self-lubricating ternary drops filled with colloidal particles.
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Affiliation(s)
- Lijun Thayyil Raju
- Physics
of Fluids Group, Faculty of Science and Technology, Mesa+ Institute
for Nanotechnology, Max Planck Center for Complex Fluid Dynamics,
and J. M. Burgers Centre for Fluid Dynamics, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
| | - Olga Koshkina
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Huanshu Tan
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
- Center
for Complex Flows and Soft Matter Research & Department of Mechanics
and Aerospace Engineering, Southern University
of Science and Technology, Shenzhen 518055, China
| | - Andreas Riedinger
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Katharina Landfester
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Detlef Lohse
- Physics
of Fluids Group, Faculty of Science and Technology, Mesa+ Institute
for Nanotechnology, Max Planck Center for Complex Fluid Dynamics,
and J. M. Burgers Centre for Fluid Dynamics, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
- Max
Planck Institute for Dynamics and Self-Organisation, Am Fassberg 17, 37077 Göttingen, Germany
| | - Xuehua Zhang
- Physics
of Fluids Group, Faculty of Science and Technology, Mesa+ Institute
for Nanotechnology, Max Planck Center for Complex Fluid Dynamics,
and J. M. Burgers Centre for Fluid Dynamics, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
- Department
of Chemical and Materials Engineering, University
of Alberta, 12-380 Donadeo
Innovation Centre for Engineering, Edmonton, T6G1H9 Alberta, Canada
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22
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Zhang L, Lin S, Li Y, Li B, Yang Y. Ala–Ala dipeptides with a semi-perfluoroalkyl chain: chirality driven molecular packing difference and self-assembly driven chiral transfer. NEW J CHEM 2021. [DOI: 10.1039/d0nj05676f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The chirality of amino acids triggered the chiral molecular stacking of dipeptides and, eventually, transferred to the semi-perfluoroalkyl chain.
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Affiliation(s)
- Lianglin Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Shuwei Lin
- Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China
- School of Optoelectronics Science and Engineering
- Soochow University
- Suzhou 215123
- China
| | - Yi Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Baozong Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yonggang Yang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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23
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Peng W, Cai Y, Fanslau L, Vana P. Nanoengineering with RAFT polymers: from nanocomposite design to applications. Polym Chem 2021. [DOI: 10.1039/d1py01172c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Reversible addition–fragmentation chain-transfer (RAFT) polymerization is a powerful tool for the precise formation of macromolecular building blocks that can be used for the construction of well-defined nanocomposites.
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Affiliation(s)
- Wentao Peng
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
| | - Yingying Cai
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
| | - Luise Fanslau
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
| | - Philipp Vana
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
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24
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Liu P, Chen W, Okazaki Y, Battie Y, Brocard L, Decossas M, Pouget E, Müller-Buschbaum P, Kauffmann B, Pathan S, Sagawa T, Oda R. Optically Active Perovskite CsPbBr 3 Nanocrystals Helically Arranged on Inorganic Silica Nanohelices. NANO LETTERS 2020; 20:8453-8460. [PMID: 32880460 DOI: 10.1021/acs.nanolett.0c02013] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Perovskite nanocrystals (PNCs) exhibit excellent absorption and luminescent properties. Inorganic silica right (or left) handed nanohelices are used as chiral templates to induce optically active properties to CsPbBr3 PNCs grafted on their surfaces. In suspension, PNCs grafted on the nanohelices do not show any detectable chiroptical properties. In contrast, in a dried film state, they show large circular dichroism (CD) and circularly polarized luminescence (CPL) signals with dissymmetric factor up to 6 × 10-3. Grazing incidence X-ray scattering, tomography, and cryo-electron microscopy (EM) have shown closely and helically packed PNCs on the dried helices and much more loosely organized PNCs on helices in suspension. Simulations based on the coupled dipole method (CDM) demonstrate that the CD comes from the dipolar interaction between PNC assembled into a chiral structure and the CD decreases with the interparticle distance.
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Affiliation(s)
- Peizhao Liu
- Chimie et Biologie des Membrance et des Nanoobjets (CBMN), CNRS, University of Bordeaux, Bordeaux INP, UMR 5248, 33607 Pessac, France
- Graduate School of Energy Science, Kyoto University, 606-8501 Kyoto, Japan
| | - Wei Chen
- Physik Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
| | - Yutaka Okazaki
- Graduate School of Energy Science, Kyoto University, 606-8501 Kyoto, Japan
| | - Yann Battie
- Laboratoire de Chimie et Physique-Approche Multi-échelles des Milieux Complexes, (LCP-A2MC), Université de Lorraine, 1 Boulevard Arago, 57078 Metz, France
| | - Lysiane Brocard
- Bordeaux Imaging Centre, Plant Imaging Platform, UMS 3420, INRA-CNRS-INSERM-University of Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave-d'Ornon Cedex, France
| | - Marion Decossas
- Chimie et Biologie des Membrance et des Nanoobjets (CBMN), CNRS, University of Bordeaux, Bordeaux INP, UMR 5248, 33607 Pessac, France
| | - Emilie Pouget
- Chimie et Biologie des Membrance et des Nanoobjets (CBMN), CNRS, University of Bordeaux, Bordeaux INP, UMR 5248, 33607 Pessac, France
| | - Peter Müller-Buschbaum
- Physik Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstraße 1, 85748 Garching, Germany
| | - Brice Kauffmann
- Institut Européen de Chimie et Biologie (UMS 3033), Université de Bordeaux-CNRS-INSERM, 2 Rue Robert Escarpit, 33607 Pessac, France
| | - Shaheen Pathan
- Chimie et Biologie des Membrance et des Nanoobjets (CBMN), CNRS, University of Bordeaux, Bordeaux INP, UMR 5248, 33607 Pessac, France
| | - Takashi Sagawa
- Graduate School of Energy Science, Kyoto University, 606-8501 Kyoto, Japan
| | - Reiko Oda
- Chimie et Biologie des Membrance et des Nanoobjets (CBMN), CNRS, University of Bordeaux, Bordeaux INP, UMR 5248, 33607 Pessac, France
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25
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Szustakiewicz P, Kowalska N, Grzelak D, Narushima T, Góra M, Bagiński M, Pociecha D, Okamoto H, Liz-Marzán LM, Lewandowski W. Supramolecular Chirality Synchronization in Thin Films of Plasmonic Nanocomposites. ACS NANO 2020; 14:12918-12928. [PMID: 32886482 PMCID: PMC7596782 DOI: 10.1021/acsnano.0c03964] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Mirror symmetry breaking in materials is a fascinating phenomenon that has practical implications for various optoelectronic technologies. Chiral plasmonic materials are particularly appealing due to their strong and specific interactions with light. In this work we broaden the portfolio of available strategies toward the preparation of chiral plasmonic assemblies, by applying the principles of chirality synchronization-a phenomenon known for small molecules, which results in the formation of chiral domains from transiently chiral molecules. We report the controlled cocrystallization of 23 nm gold nanoparticles and liquid crystal molecules yielding domains made of highly ordered, helical nanofibers, preferentially twisted to the right or to the left within each domain. We confirmed that such micrometer sized domains exhibit strong, far-field circular dichroism (CD) signals, even though the bulk material is racemic. We further highlight the potential of the proposed approach to realize chiral plasmonic thin films by using a mechanical chirality discrimination method. Toward this end, we developed a rapid CD imaging technique based on the use of polarized light optical microscopy (POM), which enabled probing the CD signal with micrometer-scale resolution, despite of linear dichroism and birefringence in the sample. The developed methodology allows us to extend intrinsically local effects of chiral synchronization to the macroscopic scale, thereby broadening the available tools for chirality manipulation in chiral plasmonic systems.
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Affiliation(s)
- Piotr Szustakiewicz
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Natalia Kowalska
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Dorota Grzelak
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Tetsuya Narushima
- Institute
for Molecular Science (IMS) and The Graduate University for Advanced
Studies (SOKENDAI), 38
Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Monika Góra
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Maciej Bagiński
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
| | - Damian Pociecha
- Faculty
of Chemistry, University of Warsaw, 101 Żwirki i Wigury, 02-089 Warsaw, Poland
| | - Hiromi Okamoto
- Institute
for Molecular Science (IMS) and The Graduate University for Advanced
Studies (SOKENDAI), 38
Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research and Technology
Alliance (BRTA), Paseo
de Miramón 182, Donostia-San Sebastián 20014, Spain
- Ikerbasque,
Basque Foundation for Science, 48013 Bilbao, Spain
- Centro
de Investigación en Biomédica Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, Donostia-San Sebastián 20014, Spain
| | - Wiktor Lewandowski
- Laboratory
of Organic Nanomaterials and Biomolecules, Faculty of Chemistry, University of Warsaw, Pasteura 1 Street, 02-093 Warsaw, Poland
- (W.L.)
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26
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Cao Z, Gao H, Qiu M, Jin W, Deng S, Wong KY, Lei D. Chirality Transfer from Sub-Nanometer Biochemical Molecules to Sub-Micrometer Plasmonic Metastructures: Physiochemical Mechanisms, Biosensing, and Bioimaging Opportunities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907151. [PMID: 33252162 DOI: 10.1002/adma.201907151] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/21/2020] [Indexed: 05/05/2023]
Abstract
Determining the structural chirality of biomolecules is of vital importance in bioscience and biomedicine. Conventional methods for characterizing molecular chirality, e.g., circular dichroism (CD) spectroscopy, require high-concentration specimens due to the weak electronic CD signals of biomolecules such as amino acids. Artificially designed chiral plasmonic metastructures exhibit strong intrinsic chirality. However, the significant size mismatch between metastructures and biomolecules makes the former unsuitable for chirality-recognition-based molecular discrimination. Fortunately, constructing metallic architectures through molecular self-assembly allows chirality transfer from sub-nanometer biomolecules to sub-micrometer, intrinsically achiral plasmonic metastructures by means of either near-field interaction or chirality inheritance, resulting in hybrid systems with CD signals orders of magnitude larger than that of pristine biomolecules. This exotic property provides a new means to determine molecular chirality at extremely low concentrations (ideally at the single-molecule level). Herein, three strategies of chirality transfer from sub-nanometer biomolecules to sub-micrometer metallic metastructures are analyzed. The physiochemical mechanisms responsible for chirality transfer are elaborated and new fascinating opportunities for employing plasmonic metastructures in chirality-based biosensing and bioimaging are outlined.
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Affiliation(s)
- Zhaolong Cao
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275, China
| | - Han Gao
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, 999077, China
| | - Meng Qiu
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, 999077, China
| | - Wei Jin
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, 999077, China
| | - Shaozhi Deng
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275, China
| | - Kwok-Yin Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, 999077, China
| | - Dangyuan Lei
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
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27
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Mokashi-Punekar S, Zhou Y, Brooks SC, Rosi NL. Construction of Chiral, Helical Nanoparticle Superstructures: Progress and Prospects. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905975. [PMID: 31815327 DOI: 10.1002/adma.201905975] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/12/2019] [Indexed: 05/27/2023]
Abstract
Chiral nanoparticle (NP) superstructures, in which discrete NPs are assembled into chiral architectures, represent an exciting and growing class of nanomaterials. Their enantiospecific properties make them promising candidates for a variety of potential applications. Helical NP superstructures are a rapidly expanding subclass of chiral nanomaterials in which NPs are arranged in three dimensions about a screw axis. Their intrinsic asymmetry gives rise to a variety of interesting properties, including plasmonic chiroptical activity in the visible spectrum, and they hold immense promise as chiroptical sensors and as components of optical metamaterials. Herein, a concise history of the foundational conceptual advances that helped define the field of chiral nanomaterials is provided, and some of the major achievements in the development of helical nanomaterials are highlighted. Next, the key methodologies employed to construct these materials are discussed, and specific merits that are offered by each assembly methodology are identified, as well as their potential disadvantages. Finally, some specific examples of the emerging applications of these materials are discussed and some areas of future development and research focus are proposed.
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Affiliation(s)
| | - Yicheng Zhou
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Sydney C Brooks
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Nathaniel L Rosi
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, 15260, USA
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28
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Fan J, Kotov NA. Chiral Nanoceramics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906738. [PMID: 32500963 DOI: 10.1002/adma.201906738] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/12/2019] [Accepted: 02/21/2020] [Indexed: 05/27/2023]
Abstract
The study of different chiral inorganic nanomaterials has been experiencing rapid growth during the past decade, with its primary focus on metals and semiconductors. Ceramic materials can substantially expand the range of mechanical, optical, chemical, electrical, magnetic, and biological properties of chiral nanostructures, further stimulating theoretical, synthetic, and applied research in this area. An ever-expanding toolbox of nanoscale engineering and self-organization provides a chirality-based methodology for engineering of hierarchically organized ceramic materials. However, fundamental discoveries and technological translations of chiral nanoceramics have received substantially smaller attention than counterparts from metals and semiconductors. Findings in this research area are scattered over a variety of sources and subfields. Here, the diversity of chemistries, geometries, and properties found in chiral ceramic nanostructures are summarized. They represent a compelling materials platform for realization of chirality transfer through multiple scales that can result in new forms of ceramic materials. Multiscale chiral geometries and the structural versatility of nanoceramics are complemented by their high chiroptical activity, enantioselectivity, catalytic activity, and biocompatibility. Future development in this field is likely to encompass chiral synthesis, biomedical applications, and optical/electronic devices. The implementation of computationally designed chiral nanoceramics for biomimetic catalysts and quantum information devices may also be expected.
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Affiliation(s)
- Jinchen Fan
- Department of Chemical Engineering and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China
| | - Nicholas A Kotov
- Department of Chemical Engineering and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
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29
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Victoria F, Manioudakis J, Zaroubi L, Findlay B, Naccache R. Tuning residual chirality in carbon dots with anti-microbial properties. RSC Adv 2020; 10:32202-32210. [PMID: 35518167 PMCID: PMC9056545 DOI: 10.1039/d0ra05208f] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 08/24/2020] [Indexed: 11/29/2022] Open
Abstract
Chirality remains a critical consideration in drug development and design, as well as in applications of enantioselective recognition and sensing. However, the preparation of chiral nanomaterials requires extensive post synthetic modifications with a chiral agent, coupled with extensive purification. This limits the use and application of chiral nanomaterials. Herein, we report a facile, one-step microwave-assisted synthesis of chiral carbon dots through the reaction of l- and d-cysteine amino acid precursors and citric acid. We modulated the synthetic parameters to preserve and tune the residual chiral properties of the dots and demonstrate that the reaction conditions play a critical role in dictating the chiral behaviour of the dots. Finally, in a proof of concept application we demonstrated that the synthesized carbon dots, particularly d-carbon dots inhibit bacterial growth at a lower concentration than l-carbon dots. By varying bacterial strains and chirality of the carbon dots, concentrations ranging from 0.25-4 mg mL-1 of the nanoparticles were required to inhibit microbial growth. The ability to preserve and tune chirality during synthesis can open up novel avenues and research directions for the development of enantioselective materials, as well as antibacterial films and surfaces.
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Affiliation(s)
- Florence Victoria
- Department of Chemistry and Biochemistry, Concordia University Montreal QC Canada H4B 1R6
- Centre for NanoScience Research, Concordia University Montreal QC Canada H4B 1R6
- Quebec Centre for Advanced Materials, Department of Chemistry and Biochemistry, Concordia University Montreal QC H4B 1R6 Canada
| | - John Manioudakis
- Department of Chemistry and Biochemistry, Concordia University Montreal QC Canada H4B 1R6
- Centre for NanoScience Research, Concordia University Montreal QC Canada H4B 1R6
- Quebec Centre for Advanced Materials, Department of Chemistry and Biochemistry, Concordia University Montreal QC H4B 1R6 Canada
| | - Liana Zaroubi
- Department of Chemistry and Biochemistry, Concordia University Montreal QC Canada H4B 1R6
| | - Brandon Findlay
- Department of Chemistry and Biochemistry, Concordia University Montreal QC Canada H4B 1R6
| | - Rafik Naccache
- Department of Chemistry and Biochemistry, Concordia University Montreal QC Canada H4B 1R6
- Centre for NanoScience Research, Concordia University Montreal QC Canada H4B 1R6
- Quebec Centre for Advanced Materials, Department of Chemistry and Biochemistry, Concordia University Montreal QC H4B 1R6 Canada
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30
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Deng K, Luo Z, Tan L, Quan Z. Self-assembly of anisotropic nanoparticles into functional superstructures. Chem Soc Rev 2020; 49:6002-6038. [PMID: 32692337 DOI: 10.1039/d0cs00541j] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Self-assembly of colloidal nanoparticles (NPs) into superstructures offers a flexible and promising pathway to manipulate the nanometer-sized particles and thus make full use of their unique properties. This bottom-up strategy builds a bridge between the NP regime and a new class of transformative materials across multiple length scales for technological applications. In this field, anisotropic NPs with size- and shape-dependent physical properties as self-assembly building blocks have long fascinated scientists. Self-assembly of anisotropic NPs not only opens up exciting opportunities to engineer a variety of intriguing and complex superlattice architectures, but also provides access to discover emergent collective properties that stem from their ordered arrangement. Thus, this has stimulated enormous research interests in both fundamental science and technological applications. This present review comprehensively summarizes the latest advances in this area, and highlights their rich packing behaviors from the viewpoint of NP shape. We provide the basics of the experimental techniques to produce NP superstructures and structural characterization tools, and detail the delicate assembled structures. Then the current understanding of the assembly dynamics is discussed with the assistance of in situ studies, followed by emergent collective properties from these NP assemblies. Finally, we end this article with the remaining challenges and outlook, hoping to encourage further research in this field.
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Affiliation(s)
- Kerong Deng
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Zhishan Luo
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Li Tan
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Zewei Quan
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
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31
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Feng W, Kadiyala U, Yan J, Wang Y, DiRita VJ, VanEpps JS, Kotov NA. Plasmonic nanoparticles assemblies templated by helical bacteria and resulting optical activity. Chirality 2020; 32:899-906. [PMID: 32319710 DOI: 10.1002/chir.23225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 11/11/2022]
Abstract
Plasmonic nanoparticles (NPs) adsorbing onto helical bacteria can lead to formation of NP helicoids with micron scale pitch. Associated chiroptical effects can be utilized as bioanalytical tool for bacterial detection and better understanding of the spectral behavior of helical self-assembled structures with different scales. Here, we report that enantiomerically pure helices with micron scale of chirality can be assembled on Campylobacter jejuni, a helical bacterium known for severe stomach infections. These organisms have right-handed helical shapes with a pitch of 1-2 microns and can serve as versatile templates for a variety of NPs. The bacteria itself shows no observable rotatory activity in the visible, red, and near-IR ranges of electromagnetic spectrum. The bacterial dispersion acquires chiroptical activity at 500-750 nm upon plasmonic functionalization with Au NPs. Finite-difference time-domain simulations confirmed the attribution of the chiroptical activity to the helical assembly of gold nanoparticles. The position of the circular dichroism peaks observed for these chiral structures overlaps with those obtained before for Au NPs and their constructs with molecular and nanoscale chirality. This work provides an experimental and computational pathway to utilize chiroplasmonic particles assembled on bacteria for bioanalytical purposes.
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Affiliation(s)
- Wenchun Feng
- US Food and Drug Administration, Silver Spring, Maryland, USA.,Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA.,Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Usha Kadiyala
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA.,Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Jiao Yan
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA.,Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Yichun Wang
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Victor J DiRita
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan, USA
| | - J Scott VanEpps
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA.,Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA.,Michigan Center for Integrative Research in Critical Care, University of Michigan, Ann Arbor, Michigan, USA.,Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, Michigan, USA
| | - Nicholas A Kotov
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, USA.,Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA.,Michigan Center for Integrative Research in Critical Care, University of Michigan, Ann Arbor, Michigan, USA
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32
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Liang J, Guo P, Qin X, Gao X, Ma K, Zhu X, Jin X, Xu W, Jiang L, Duan P. Hierarchically Chiral Lattice Self-Assembly Induced Circularly Polarized Luminescence. ACS NANO 2020; 14:3190-3198. [PMID: 32129981 DOI: 10.1021/acsnano.9b08408] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Biomaterials in nature often exhibit hierarchical chiral structures with an intriguing mechanism involving hierarchical chirality transfer from molecular to supramolecular and the nano- or microscale level. To mimic the cross-level chirality transfer, we present here one kind of host-guest complex system built of β-cyclodextrin (β-CD), sodium dodecyl sulfate (SDS), and fluorescent dyes, which show multilevel chirality, including molecular chirality of β-CD, induced supramolecular chirality of β-CD/SDS host-guest complexes, a chiral lattice self-assembled nanosheet, mesoscopic chirality of an assembled helical tube, induced chirality of a dye-doped chiral tube. The hierarchical chirality involved a chiral lattice self-assembly process, which can be identified by small-angle X-ray scattering, optical studies, circular dichroism, and circularly polarized luminescence spectral measurements. Benefiting from the chiral lattice self-assembly, intense circularly polarized luminescence was observed from the achiral dye-doped complexes with a large dissymmetry factor up to +0.1. This work thus provides a feasible insight for developing hierarchical chiroptical materials based on the lattice self-assembly.
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Affiliation(s)
- Jiaqi Liang
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, People's Republic of China
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China
| | - Peipei Guo
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, People's Republic of China
| | - Xujin Qin
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China
| | - Xiaohui Gao
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China
| | - Kai Ma
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China
| | - Xuefeng Zhu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Xue Jin
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China
| | - Weiwei Xu
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, People's Republic of China
| | - Lingxiang Jiang
- College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, People's Republic of China
| | - Pengfei Duan
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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33
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Maruyama J, Shinagawa T, Watanabe M, Kashiwagi Y, Maruyama S, Nagaoka T, Matsuda W, Tsutsui Y, Seki S, Uyama H. Helical Pore Alignment on Cylindrical Carbon. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905916. [PMID: 31797554 DOI: 10.1002/smll.201905916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 10/30/2019] [Indexed: 06/10/2023]
Abstract
Interest in chiral substances has mainly focused on the substances themselves, but not on the accompanying space, especially regarding the pore alignment. As a method to form both the chiral substance and the accompanying space, cylindrical self-assembly of uniform polystyrene nanoparticles with fructose is carried out in the presence of both carbon and sodium alginate, which is followed by heat treatment in an inert atmosphere. The carbonization generates fructose-derived honeycomb-like carbon walls with helically aligned nanopores left after the polystyrene decomposition. The diffuse reflectance circular dichroism measurements give peaks with opposite signs for the d- and l-fructose-derived cylindrical carbons. Circularly polarized light sensitivity in transient photoconductivity is confirmed apparently in the carbon-based helical structures. This sensitivity as well as straightforward formation of composites with another component to give helicity shows potential applications of the helically aligned pores.
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Affiliation(s)
- Jun Maruyama
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka, 536-8553, Japan
| | - Tsutomu Shinagawa
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka, 536-8553, Japan
| | - Mitsuru Watanabe
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka, 536-8553, Japan
| | - Yukiyasu Kashiwagi
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka, 536-8553, Japan
| | - Shohei Maruyama
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka, 536-8553, Japan
| | - Toru Nagaoka
- Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka, 536-8553, Japan
| | - Wakana Matsuda
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yusuke Tsutsui
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Department of Molecular Engineering, Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, 565-0871, Japan
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34
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Yi C, Yang Y, Liu B, He J, Nie Z. Polymer-guided assembly of inorganic nanoparticles. Chem Soc Rev 2019; 49:465-508. [PMID: 31845685 DOI: 10.1039/c9cs00725c] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The self-assembly of inorganic nanoparticles is of great importance in realizing their enormous potentials for broad applications due to the advanced collective properties of nanoparticle ensembles. Various molecular ligands (e.g., small molecules, DNAs, proteins, and polymers) have been used to assist the organization of inorganic nanoparticles into functional structures at different hierarchical levels. Among others, polymers are particularly attractive for use in nanoparticle assembly, because of the complex architectures and rich functionalities of assembled structures enabled by polymers. Polymer-guided assembly of nanoparticles has emerged as a powerful route to fabricate functional materials with desired mechanical, optical, electronic or magnetic properties for a broad range of applications such as sensing, nanomedicine, catalysis, energy storage/conversion, data storage, electronics and photonics. In this review article, we summarize recent advances in the polymer-guided self-assembly of inorganic nanoparticles in both bulk thin films and solution, with an emphasis on the role of polymers in the assembly process and functions of resulting nanostructures. Precise control over the location/arrangement, interparticle interaction, and packing of inorganic nanoparticles at various scales are highlighted.
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Affiliation(s)
- Chenglin Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Yiqun Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, China and Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Jie He
- Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Zhihong Nie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
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35
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King EM, Gebbie MA, Melosh NA. Impact of Rigidity on Molecular Self-Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16062-16069. [PMID: 31610658 DOI: 10.1021/acs.langmuir.9b01824] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rigid, cage-like molecules, like diamondoids, show unique self-assembly behavior, such as templating 1-D nanomaterial assembly via pathways that are typically blocked for such bulky substituents. We investigate molecular forces between diamondoids to explore why molecules with high structural rigidity exhibit these novel assembly pathways. The rigid nature of diamondoids significantly lowers configurational entropy, and we hypothesize that this influences molecular interaction forces. To test this concept, we calculated the distance-dependent impact of entropy on assembly using molecular dynamics simulations. To isolate pairwise entropic and enthalpic contributions to assembly, we considered pairs of molecules in a thermal bath, fixed at set intermolecular separations but otherwise allowed to freely move. By comparing diamondoids to linear alkanes, we draw out the impact of rigidity on the entropy and enthalpy of pairwise interactions. We find that linear alkanes actually exhibit stronger van der Waals interactions than diamondoids at contact, because the bulky structure of diamondoids induces larger net atomic separations. Yet, we also find that diamondoids pay lower entropic penalties when assembling into contact pairs. Thus, the cage-like shape of diamondoids introduces an enthalpic penalty at contact, but the penalty is counterbalanced by entropic effects. Investigating the distance dependence of entropic forces provides a mechanism to explore how rigidity influences molecular assembly. Our results show that low entropic penalties paid by diamondoids can explain the effectiveness of diamondoids in templating nanomaterial assembly. Hence, tuning molecular rigidity can be an effective strategy for controlling the assembly of functional materials, such as biomimetic surfaces and nanoscale materials.
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Affiliation(s)
- Ella M King
- Geballe Laboratory for Advanced Materials , Stanford University , Stanford , California 94305 , United States
- Department of Physics , Harvard University , Cambridge , Massachusetts 02138 , United States
| | - Matthew A Gebbie
- Geballe Laboratory for Advanced Materials , Stanford University , Stanford , California 94305 , United States
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Nicholas A Melosh
- Geballe Laboratory for Advanced Materials , Stanford University , Stanford , California 94305 , United States
- Department of Materials Science and Engineering , Stanford University , Stanford , California 94305 , United States
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36
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Formation Mechanism of ZnO Nanorod Superstructures in Different Solvents. CRYSTAL RESEARCH AND TECHNOLOGY 2019. [DOI: 10.1002/crat.201900167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Single- and multi-component chiral supraparticles as modular enantioselective catalysts. Nat Commun 2019; 10:4826. [PMID: 31645546 PMCID: PMC6811642 DOI: 10.1038/s41467-019-12134-4] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 08/22/2019] [Indexed: 12/26/2022] Open
Abstract
Nanoscale biological assemblies exemplified by exosomes, endosomes and capsids, play crucial roles in all living systems. Supraparticles (SP) from inorganic nanoparticles (NPs) replicate structural characteristics of these bioassemblies, but it is unknown whether they can mimic their biochemical functions. Here, we show that chiral ZnS NPs self-assemble into 70–100 nm SPs that display sub-nanoscale porosity associated with interstitial spaces between constituent NPs. Similarly to photosynthetic bacterial organelles, these SPs can serve as photocatalysts, enantioselectively converting L- or D-tyrosine (Tyr) into dityrosine (diTyr). Experimental data and molecular dynamic simulations indicate that the chiral bias of the photocatalytic reaction is associated with the chiral environment of interstitial spaces and preferential partitioning of enantiomers into SPs, which can be further enhanced by co-assembling ZnS with Au NPs. Besides replicating a specific function of biological nanoassemblies, these findings establish a path to enantioselective oxidative coupling of phenols for biomedical and other needs. Nanoscale biological assemblies play crucial roles in all living systems and display a variety of chemical functionalities. Here the authors show that it is possible to replicate some of the biochemical functions in similarly-sized assemblies made from inorganic nanoparticles.
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38
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Chakraborty S, Berac CM, Kemper B, Besenius P, Speck T. Modeling Supramolecular Polymerization: The Role of Steric Effects and Hydrophobic Interactions. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01435] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Saikat Chakraborty
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7-9, 55128 Mainz, Germany
| | - Christian M. Berac
- Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
- Graduate School “Materials Science in Mainz”, Johannes Gutenberg-Universität Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Benedict Kemper
- Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Pol Besenius
- Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
- Graduate School “Materials Science in Mainz”, Johannes Gutenberg-Universität Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Thomas Speck
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7-9, 55128 Mainz, Germany
- Graduate School “Materials Science in Mainz”, Johannes Gutenberg-Universität Mainz, Staudingerweg 9, 55128 Mainz, Germany
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Nemati A, Shadpour S, Querciagrossa L, Mori T, Zannoni C, Hegmann T. Highly Sensitive, Tunable Chirality Amplification through Space Visualized for Gold Nanorods Capped with Axially Chiral Binaphthyl Derivatives. ACS NANO 2019; 13:10312-10326. [PMID: 31424907 DOI: 10.1021/acsnano.9b03787] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The creation and transmission of chirality in molecular systems is a well-known, widely applied notion. Our understanding of how the chirality of nanomaterials can be controlled, measured, transmitted through space, and applied is less well understood. Dynamic assemblies for chiral sensing or metamaterials engineered from chiral nanomaterials require exact methods to determine transmission and amplification of nanomaterial chirality through space. We report the synthesis of a series of gold nanorods (GNRs) with a constant aspect ratio of ∼4.3 capped with C2-symmetric, axially chiral binaphthyl thiols, preparation of dispersions in the nematic liquid crystal 5CB, measurements of the helical pitch, and the determination of the helical twisting power as well as the average distance between the chiral nanomaterial additives. By comparison to the neat organic chiral derivatives, we demonstrate how the amplification of chirality facilitated by GNRs decorated with chiral molecules can be used to clearly distinguish the chiral induction strength of a homologous series of binaphthyl derivatives, differing only in the length of the nontethered aliphatic chain, in the induced chiral nematic liquid crystal phase. Considering systematic errors in sample preparation and optical measurements, these chiral molecules would otherwise be deemed identical with respect to chiral induction. Notably, we find some of the highest ever-reported values of the helical twisting power. We further support our experimentally derived arguments of a more comprehensive understanding of chirality transfer by calculations of a suitable pseudoscalar chirality indicator.
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Affiliation(s)
- Ahlam Nemati
- Advanced Materials and Liquid Crystal Institute, Chemical Physics Interdisciplinary Program , Kent State University , Kent , Ohio 44242 , United States
| | - Sasan Shadpour
- Advanced Materials and Liquid Crystal Institute, Chemical Physics Interdisciplinary Program , Kent State University , Kent , Ohio 44242 , United States
| | - Lara Querciagrossa
- Dipartimento di Chimica Industriale "Toso Montanari" and INSTM , Università di Bologna , Viale Risorgimento 4 , IT-40136 Bologna , Italy
| | - Taizo Mori
- Graduate School of Frontier Science , The University of Tokyo , 5-1-5, Kashiwanoha , Kashiwa 277-0827 , Japan
| | - Claudio Zannoni
- Dipartimento di Chimica Industriale "Toso Montanari" and INSTM , Università di Bologna , Viale Risorgimento 4 , IT-40136 Bologna , Italy
| | - Torsten Hegmann
- Advanced Materials and Liquid Crystal Institute, Chemical Physics Interdisciplinary Program , Kent State University , Kent , Ohio 44242 , United States
- Department of Chemistry and Biochemistry , Kent State University , Kent , Ohio 44242 , United States
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40
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Lesiak P, Bednarska K, Lewandowski W, Wójcik M, Polakiewicz S, Bagiński M, Osuch T, Markowski K, Orzechowski K, Makowski M, Bolek J, Woliński TR. Self-Organized, One-Dimensional Periodic Structures in a Gold Nanoparticle-Doped Nematic Liquid Crystal Composite. ACS NANO 2019; 13:10154-10160. [PMID: 31433620 DOI: 10.1021/acsnano.9b03302] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Composite structures exhibiting a periodic arrangement of building blocks can be found in natural systems at different length scales. Recreating such systems in artificial composites using the principles of self-assembly has been a great challenge, especially for 1D microscale systems. Here, we present a purposely designed composite material consisting of gold nanoparticles and a nematic liquid crystal matrix that has the ability to self-create a periodic structure in the form of a one-dimensional photonic lattice through a phase separation process occurring in a confined space. Our strategy is based on the use of a thermoswitchable medium that reversibly and quickly responds to both heating and cooling. We find that the period of the structure is strongly related to the size of the confining space. We believe that our findings will allow us to not only better understand the phase separation process in multicomponent soft/colloid mixtures with useful optical properties but also improve our understanding of the precise assembly of advanced materials into one-dimensional periodic systems, with prospective applications in future photonic technologies.
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Affiliation(s)
- Piotr Lesiak
- Faculty of Physics , Warsaw University of Technology , Koszykowa 75 , 00-662 Warszawa , Poland
| | - Karolina Bednarska
- Faculty of Physics , Warsaw University of Technology , Koszykowa 75 , 00-662 Warszawa , Poland
| | - Wiktor Lewandowski
- Faculty of Chemistry , University of Warsaw , ul. Pasteura 1 , 02-093 Warszawa , Poland
| | - Michał Wójcik
- Faculty of Chemistry , University of Warsaw , ul. Pasteura 1 , 02-093 Warszawa , Poland
| | - Sylwia Polakiewicz
- Faculty of Chemistry , University of Warsaw , ul. Pasteura 1 , 02-093 Warszawa , Poland
| | - Maciej Bagiński
- Faculty of Chemistry , University of Warsaw , ul. Pasteura 1 , 02-093 Warszawa , Poland
| | - Tomasz Osuch
- Faculty of Electronics and Information Technology, Institute of Electronic Systems , Warsaw University of Technology , Nowowiejska 15/19 , 00-665 Warszawa , Poland
| | - Konrad Markowski
- Faculty of Electronics and Information Technology, Institute of Electronic Systems , Warsaw University of Technology , Nowowiejska 15/19 , 00-665 Warszawa , Poland
| | - Kamil Orzechowski
- Faculty of Physics , Warsaw University of Technology , Koszykowa 75 , 00-662 Warszawa , Poland
| | - Michał Makowski
- Faculty of Physics , Warsaw University of Technology , Koszykowa 75 , 00-662 Warszawa , Poland
| | - Jan Bolek
- Faculty of Physics , Warsaw University of Technology , Koszykowa 75 , 00-662 Warszawa , Poland
| | - Tomasz R Woliński
- Faculty of Physics , Warsaw University of Technology , Koszykowa 75 , 00-662 Warszawa , Poland
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41
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Wang X, Hao J, Cheng J, Li J, Miao J, Li R, Li Y, Li J, Liu Y, Zhu X, Liu Y, Sun XW, Tang Z, Delville MH, He T, Chen R. Chiral CdSe nanoplatelets as an ultrasensitive probe for lead ion sensing. NANOSCALE 2019; 11:9327-9334. [PMID: 30911741 DOI: 10.1039/c8nr10506e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
As opposed to traditional photoluminescence and ultra-violet based optical sensing, we present here a sensing system based on resolved optically active polarization with promising applications. It is based on the ultrathin CdSe nanoplatelets (NPLs) when modified with either l or d-cysteine molecules (l/d-cys) as bio-to-nano ligands. The chiral ligand transfers its chiroptical activity to the achiral nanoplatelets with an anisotropy factor of ∼10-4, which unlocks the chiral excitonic transitions and allows lead ion detection with a limit of detection (LOD) as low as 4.9 nM. Simulations and modelling based on time-dependent density functional theory (TD-DFT) reveal the chiral mechanism of l/d-cys capped CdSe NPLs. The presented CD-based sensing system illustrates an alternative possibility of using chiral CdSe NPLs as competitive chiral sensors for heavy metal ion detection.
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Affiliation(s)
- Xiongbin Wang
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, P. R. China.
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42
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Shao X, Zhang T, Li B, Zhou M, Ma X, Wang J, Jiang S. Chiroptical Activity of Type II Core/Shell Cu 2S/CdSe Nanocrystals. Inorg Chem 2019; 58:6534-6543. [PMID: 31007027 DOI: 10.1021/acs.inorgchem.9b00769] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Ligand-induced chirality in core/shell nanocrystals (NCs) has attracted extensive attention because of many valuable potential applications. However, the cause of chirality especially in semiconductor nanomaterials is still under debate despite the creation of chiral type I core/shell structures. Herein, we synthesized a kind of new Cu2S/CdSe core/shell nanostructure to study the underlying reason. Four samples of Cu2S/CdSe were synthesized utilizing successive ion layer adsorption and reaction to vary the thickness of the CdSe shell upon a Cu2S core with 5 nm diameter. The chirality of type II Cu2S/CdSe NCs is imparted by l-/d-cysteine and penicillamine, which could be modulated with an increasing thickness of the CdSe shell. To the best of our knowledge, this is the first report of chiral type II core/shell semiconductor NCs. The hybridization theory can explain the variation trend of g factors with every increase in shell thickness from four monolayers (4 ML) to 7 ML. The results indicate that the chiroptical activity of semiconductor NCs is mainly due to hybridization between the holes in the valence band of NCs and the highest occupied molecular orbitals of the chiral ligands. In addition, Cu2S/CdSe NCs show a better chiroptical intensity in comparison with the type I structure according to previous work. The first design of chiral type II Cu2S/CdSe core/shell NCs and a detailed investigation of chiral variation trend help to give a better understanding of the chiral interaction between ligands and core/shell semiconductor nanostructures.
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Affiliation(s)
- Xiao Shao
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , People's Republic of China
| | - Tianyong Zhang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , People's Republic of China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , People's Republic of China.,Tianjin Engineering Research Center of Functional Fine Chemicals , Tianjin 300354 , People's Republic of China
| | - Bin Li
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , People's Republic of China.,Tianjin Engineering Research Center of Functional Fine Chemicals , Tianjin 300354 , People's Republic of China
| | - Minghao Zhou
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , People's Republic of China
| | - Xiaoyuan Ma
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , People's Republic of China
| | - Jingchao Wang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , People's Republic of China
| | - Shuang Jiang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , People's Republic of China
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Wang Y, Kadiyala U, Qu Z, Elvati P, Altheim C, Kotov NA, Violi A, VanEpps JS. Anti-Biofilm Activity of Graphene Quantum Dots via Self-Assembly with Bacterial Amyloid Proteins. ACS NANO 2019; 13:4278-4289. [PMID: 30912922 PMCID: PMC6528478 DOI: 10.1021/acsnano.8b09403] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Bacterial biofilms represent an essential part of Earth's ecosystem that can cause multiple ecological, technological, and health problems. The environmental resilience and sophisticated organization of biofilms are enabled by the extracellular matrix that creates a protective network of biomolecules around the bacterial community. Current anti-biofilm agents can interfere with extracellular matrix production but, being based on small molecules, are degraded by bacteria and rapidly diffuse away from biofilms. Both factors severely reduce their efficacy, while their toxicity to higher organisms creates additional barriers to their practicality. In this paper, we report on the ability of graphene quantum dots to effectively disperse mature amyloid-rich Staphylococcus aureus biofilms, interfering with the self-assembly of amyloid fibers, a key structural component of the extracellular matrix. Mimicking peptide-binding biomolecules, graphene quantum dots form supramolecular complexes with phenol-soluble modulins, the peptide monomers of amyloid fibers. Experimental and computational results show that graphene quantum dots efficiently dock near the N-terminus of the peptide and change the secondary structure of phenol-soluble modulins, which disrupts their fibrillation and represents a strategy for mitigation of bacterial communities.
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Affiliation(s)
- Yichun Wang
- Department of Chemical Engineering, Ann Arbor, MI 48109 USA
- Biointerfaces Institute University of Michigan, Ann Arbor, MI 48109 USA
| | - Usha Kadiyala
- Department of Emergency Medicine, Ann Arbor, MI 48109 USA
| | - Zhibei Qu
- Department of Chemical Engineering, Ann Arbor, MI 48109 USA
- Biointerfaces Institute University of Michigan, Ann Arbor, MI 48109 USA
| | - Paolo Elvati
- Department of Mechanical Engineering, Ann Arbor, MI 48109 USA
| | | | - Nicholas A. Kotov
- Department of Chemical Engineering, Ann Arbor, MI 48109 USA
- Biointerfaces Institute University of Michigan, Ann Arbor, MI 48109 USA
- Department of Biomedical Engineering, Ann Arbor, MI 48109 USA
- Department of Materials Science and Engineering, Ann Arbor, MI 48109 USA
- Department of Macromolecular Science and Engineering, Ann Arbor, MI 48109 USA
- Michigan Center for Integrative Research in Critical Care, Ann Arbor, MI 48109 USA
| | - Angela Violi
- Department of Chemical Engineering, Ann Arbor, MI 48109 USA
- Department of Mechanical Engineering, Ann Arbor, MI 48109 USA
- Department of Materials Science and Engineering, Ann Arbor, MI 48109 USA
- Biophysics Program, University of Michigan, Ann Arbor, MI 48109 USA
| | - J. Scott VanEpps
- Biointerfaces Institute University of Michigan, Ann Arbor, MI 48109 USA
- Department of Emergency Medicine, Ann Arbor, MI 48109 USA
- Department of Biomedical Engineering, Ann Arbor, MI 48109 USA
- Department of Macromolecular Science and Engineering, Ann Arbor, MI 48109 USA
- Michigan Center for Integrative Research in Critical Care, Ann Arbor, MI 48109 USA
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Zhang J, Liu Q, Wu W, Peng J, Zhang H, Song F, He B, Wang X, Sung HHY, Chen M, Li BS, Liu SH, Lam JWY, Tang BZ. Real-Time Monitoring of Hierarchical Self-Assembly and Induction of Circularly Polarized Luminescence from Achiral Luminogens. ACS NANO 2019; 13:3618-3628. [PMID: 30835442 DOI: 10.1021/acsnano.9b00218] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Constructing artificial helical structures through hierarchical self-assembly and exploring the underlying mechanism are important, and they help gain insight from the structures, processes, and functions from the biological helices and facilitate the development of material science and nanotechnology. Herein, the two enantiomers of chiral Au(I) complexes ( S)-1 and ( R)-1 were synthesized, and they exhibited impressive spontaneous hierarchical self-assembly transitions from vesicles to helical fibers. An impressive chirality inversion and amplification was accompanied by the assembly transition, as elucidated by the results of in situ and time-dependent circular dichroism spectroscopy and scanning electron microscope imaging. The two enantiomers could serve as ideal chiral templates to co-assemble with other achiral luminogens to efficiently induce the resulting co-assembly systems to show circularly polarized luminescence (CPL). Our work has provided a simple but efficient way to explore the sophisticated self-assembly process and presented a facile and effective strategy to fabricate architectures with CPL properties.
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Affiliation(s)
- Jing Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Qiuming Liu
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , China
- Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
| | - Wenjie Wu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Junhui Peng
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Haoke Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Fengyan Song
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Benzhao He
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Xiaoyan Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan 430079 , China
| | - Herman H-Y Sung
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Ming Chen
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Bing Shi Li
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , China
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan 430079 , China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, and Department of Chemical and Biological Engineering , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , 999077 , Hong Kong, China
- Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
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45
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Cheng G, Xu D, Lu Z, Liu K. Chiral Self-Assembly of Nanoparticles Induced by Polymers Synthesized via Reversible Addition-Fragmentation Chain Transfer Polymerization. ACS NANO 2019; 13:1479-1489. [PMID: 30702861 DOI: 10.1021/acsnano.8b07151] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Chiral inorganic nanomaterials are of great interest because of their excellent optical properties. Most of the attention has been focused on the utilization of biomolecules or their derivatives as linkers or templates to control the chiral structure of assembled inorganic nanoparticles. Chiral polymers are promising synthetic materials that can be used to replace their biological counterparts. Here, by using poly(methacrylate hydroxyethyl-3-indole propionate) (PIPEMA) and poly(2-hydroxyethyl methacrylate) (PHEMA) synthesized via syndioselective reversible addition-fragmentation chain transfer polymerization, we successfully realized chiral self-assembly of gold nanorods with strong circular dichroism response in the vis-NIR region. Moreover, the intensity of the chiral signal of the assemblies can be regulated by the molecular weight of the polymers. Notably, although the monomers are achiral and no chiral reagents are involved in their synthesis, the main chains of PIPEMA and PHEMA exhibit a preferred-handed helical conformation, which is the origin of chirality of the nanorod assemblies. The preferred-handed helical conformation of polymers is attributed to their syndiotacticity and stabilized by the steric hindrance of the side groups. The addition of chiral carbon atoms at the side groups does not change the preferred-handedness of the polymer main chain, resulting in the assembled nanorod structures with the same chirality. This strategy provides inspiration for the rational design and synthesis of optically active functional synthetic polymers for the preparation of promising chiral nanomaterials.
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Affiliation(s)
- Guiqing Cheng
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , 130012 , People's Republic of China
| | - Duo Xu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry , Jilin University , Changchun , 130023 , People's Republic of China
| | - Zhongyuan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , 130012 , People's Republic of China
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry , Jilin University , Changchun , 130023 , People's Republic of China
| | - Kun Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , 130012 , People's Republic of China
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46
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Jiang N, Guo Z, Sun D, Li Y, Yang Y, Chen C, Zhang L, Zhu S. Promoting Osseointegration of Ti Implants through Micro/Nanoscaled Hierarchical Ti Phosphate/Ti Oxide Hybrid Coating. ACS NANO 2018; 12:7883-7891. [PMID: 29979574 DOI: 10.1021/acsnano.8b02227] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, micro/nanoscaled hierarchical hybrid coatings containing titanium (Ti) phosphate and Ti oxide have been fabricated with the aim of promoting osseointegration of Ti-based implants. Three representative surface coatings, namely, micro/nanograss Ti (P-G-Ti), micro/nanoclump Ti, (P-C-Ti), and micro/nanorod Ti (P-R-Ti), have been produced. In-depth investigations into the coating surface morphology, topography, chemical composition, and the surface/cell interaction have been carried out using scanning electron microscopy, transmission electron microscope, X-ray photoelectron spectroscopy, X-ray diffraction, contact-angle measurement, and protein adsorption assay. In addition, in vitro performance of the coating (cell proliferation, adhesion, and differentiation) has been evaluated using rat bone marrow stromal cells (BMSCs), and in vivo assessments have been carried out based on a rat tibia implantation model. All the hybrid coating modified implants demonstrated enhanced protein adsorption and BMSC viability, adhesion and differentiation, with P-G-Ti showing the best bioactivity among all samples. Subsequent i n vivo osseointegration tests confirmed that P-G-Ti has induced a much stronger interfacial bonding with the host tissue, indicated by the 2-fold increase in the ultimate shear strength and over 6-fold increase in the maximum push-out force compared to unmodified Ti implants. The state-of-the-art coating technology proposed for Ti-based implants in this study holds great potential in advancing medical devices for next-generation healthcare technology.
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Affiliation(s)
- Nan Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, and West China Hospital of Stomatology, Sichuan University, Chengdu 610065, China
| | - Zhijun Guo
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610065, China
- School of Mechanical and Aerospace Engineering, Queens University Belfast, Belfast BT7 1NN, U.K
| | - Dan Sun
- School of Mechanical and Aerospace Engineering, Queens University Belfast, Belfast BT7 1NN, U.K
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Yutao Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, and West China Hospital of Stomatology, Sichuan University, Chengdu 610065, China
| | - Chen Chen
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Li Zhang
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610065, China
| | - Songsong Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, and West China Hospital of Stomatology, Sichuan University, Chengdu 610065, China
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47
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Design principles of chiral carbon nanodots help convey chirality from molecular to nanoscale level. Nat Commun 2018; 9:3442. [PMID: 30143608 PMCID: PMC6109168 DOI: 10.1038/s41467-018-05561-2] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 07/11/2018] [Indexed: 01/01/2023] Open
Abstract
The chirality of (nano)structures is paramount in many phenomena, including biological processes, self-assembly, enantioselective reactions, and light or electron spin polarization. In the quest for new chiral materials, metallo-organic hybrids have been attractive candidates for exploiting the aforementioned scientific fields. Here, we show that chiral carbon nanoparticles, called carbon nanodots, can be readily prepared using hydrothermal microwave-assisted synthesis and easily purified. These particles, with a mean particle size around 3 nm, are highly soluble in water and display mirror-image profile both in the UV–Vis and in the infrared regions, as detected by electronic and vibrational circular dichroism, respectively. Finally, the nanoparticles are used as templates for the formation of chiral supramolecular porphyrin assemblies, showing that it is possible to use and transfer the chiral information. This simple (and effective) methodology opens up exciting opportunities for developing a variety of chiral composite materials and applications. A promising and efficient route to chiral materials involves the transfer of chirality across length scales. Here, the authors use chiral molecular precursors to synthesize chiral carbon nanodots, which in turn can template the formation of chiral supramolecular assemblies.
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48
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Kar S, Swathi K, Sissa C, Painelli A, Thomas KG. Emergence of Chiroptical Properties in Molecular Assemblies of Phenyleneethynylenes: The Role of Quasi-degenerate Excitations. J Phys Chem Lett 2018; 9:4584-4590. [PMID: 30040428 DOI: 10.1021/acs.jpclett.8b01988] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chiroptical properties of supramolecular assemblies originate through the asymmetric coupling of molecular transition dipole moments. Herein, we report a joint experimental and theoretical investigation to understand the influence of intermolecular interactions on chiroptical properties, particularly during the early stages of self-assembly. In this regard, phenyleneethynylene-based molecular systems appended with d- and l-isomers of phenylalanine have been synthesized with one as well as two electronic transitions in the spectral region of interest. When self-assembled, these molecules show distinctly different chiroptical properties with the right- and left-handed organizations, guided by the chirality of phenylalanines. The standard exciton approach explains the observation of a bisignated electronic circular dichroism signal in systems with a single transition but fails when applied to systems with two nearby transitions. Here, we present a generalized exciton approach that addresses the unusual chiroptical properties of systems with multiple transitions.
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Affiliation(s)
- Sabnam Kar
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Trivandrum 695551 , India
| | - K Swathi
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Trivandrum 695551 , India
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , University of Parma , 43124 Parma , Italy
| | - Cristina Sissa
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , University of Parma , 43124 Parma , Italy
| | - Anna Painelli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale , University of Parma , 43124 Parma , Italy
| | - K George Thomas
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Trivandrum 695551 , India
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Cheng J, Hao J, Liu H, Li J, Li J, Zhu X, Lin X, Wang K, He T. Optically Active CdSe-Dot/CdS-Rod Nanocrystals with Induced Chirality and Circularly Polarized Luminescence. ACS NANO 2018; 12:5341-5350. [PMID: 29791135 DOI: 10.1021/acsnano.8b00112] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ligand-induced chirality in semiconductor nanocrystals (NCs) has attracted attention because of the tunable optical properties of the NCs. Induced circular dichroism (CD) has been observed in CdX (X = S, Se, Te) NCs and their hybrids, but circularly polarized luminescence (CPL) in these fluorescent nanomaterials has been seldom reported. Herein, we describe the successful preparation of l- and d-cysteine-capped CdSe-dot/CdS-rods (DRs) with tunable CD and CPL behaviors and a maximum anisotropic factor ( glum) of 4.66 × 10-4. The observed CD and CPL activities are sensitive to the relative absorption ratio of the CdS shell to the CdSe core, suggesting that the anisotropic g-factors in both CD and CPL increase to some extent for a smaller shell-to-core absorption ratio. In addition, the molar ratio of chiral cysteine to the DRs is investigated. Instead of enhancing the chiral interactions between the chiral molecules and DRs, an excess of cysteine molecules in aqueous solution inhibits both the CD and CPL activities. Such chiral and emissive NCs provide an ideal platform for the rational design of semiconductor nanomaterials with chiroptical properties.
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Affiliation(s)
- Jiaji Cheng
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Junjie Hao
- Department of Electrical and Electronic Engineering , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Haochen Liu
- Department of Electrical and Electronic Engineering , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Jiagen Li
- School of Science and Engineering , The Chinese University of Hong Kong , Shenzhen 518172 , China
| | - Junzi Li
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Xi Zhu
- School of Science and Engineering , The Chinese University of Hong Kong , Shenzhen 518172 , China
| | - Xiaodong Lin
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
| | - Kai Wang
- Department of Electrical and Electronic Engineering , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Tingchao He
- College of Physics and Energy , Shenzhen University , Shenzhen 518060 , China
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Iida R, Mitomo H, Niikura K, Matsuo Y, Ijiro K. Two-Step Assembly of Thermoresponsive Gold Nanorods Coated with a Single Kind of Ligand. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1704230. [PMID: 29457380 DOI: 10.1002/smll.201704230] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/08/2018] [Indexed: 05/24/2023]
Abstract
Gold nanorods (GNRs) coated with a single kind of ligand show thermoreponsive two-step assembly to provide a hierarchical structure. The GNRs (33 nm in length × 14 nm in diameter) coated with a hexa(ethylene glycol) (HEG) derivative form side-by-side assemblies at 30 °C (TA1 ) as a steady state through dehydration. By further heating to over 40 °C (TA2 ), larger assemblies, which are composed of the side-by-side assembled units, are formed as hierarchical structures. The dehydration temperature of the HEG derivative varies depending on the free volume of the HEG unit, which corresponds to the curvature of the GNRs. Upon heating, dehydration first occurs from the ligands on the side portions with a lower curvature, and then from the ligands on the edge portions with a higher curvature. The different sized GNRs (33 × 8 and 54 × 15 nm) also show two-step assembly. Both the TA1 and TA2 are dependent on the diameter of the GNRs, but independent of their length. This result supports that the dehydration is dependent on the free volume, which corresponds to the curvature. Anisotropic assembly focusing on differences in curvature provides new guidelines for the fabrication of hierarchical structures.
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Affiliation(s)
- Ryo Iida
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Hideyuki Mitomo
- Research Institute for Electronic Science, Hokkaido University, Sapporo, 001-0021, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, 001-0021, Japan
| | - Kenichi Niikura
- Department of Innovative Systems Engineering, and, Graduate School of Environmental Symbiotic System Major, Nippon Institute of Technology, Miyashiro, Saitama, 345-8501, Japan
| | - Yasutaka Matsuo
- Research Institute for Electronic Science, Hokkaido University, Sapporo, 001-0021, Japan
| | - Kuniharu Ijiro
- Research Institute for Electronic Science, Hokkaido University, Sapporo, 001-0021, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, 001-0021, Japan
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