1
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Chang F, Zhang M, Chen W, Lin J, Wang Y, Yang L. Kinetically Controlled Self-Assembly of Ag Nanoclusters with Enhanced Luminescence. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39847-39856. [PMID: 39025679 DOI: 10.1021/acsami.4c07777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Constructing self-assembly with definite assembly structure-property correlation is of great significance for expanding the property richness and functional diversity of metal nanoclusters (NCs). Herein, a well-designed liquid reaction strategy was developed through which a highly ordered nanofiber superstructure with enhanced green photoluminescence (PL) was obtained via self-assembly of the individual silver nanoclusters (Ag NCs). By visual monitoring of the kinetic reaction process using time-dependent and in situ spectroscopy measurements, the assembling structure growth and the structure-determined luminescence mechanisms were revealed. The as-prepared nanofibers featured a series of advantages involving a high emission efficiency, large Stokes shift, homogeneous chromophore, excellent photostability, high temperature, and pH sensibility. By virtue of these merits, they were successfully employed in various fields of luminescent inks, encryption and anticounterfeiting platforms, and optoelectronic light-emitting diode (LED) devices.
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Affiliation(s)
- Fengjuan Chang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
| | - Mengting Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
| | - Wanying Chen
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
| | - Jian Lin
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
| | - Yin Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
| | - Lina Yang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui, P. R. China
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2
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Wen X, Zhang C, Tian Y, Miao Y, Liu S, Xu JJ, Ye D, He J. Smart Molecular Imaging and Theranostic Probes by Enzymatic Molecular In Situ Self-Assembly. JACS AU 2024; 4:2426-2450. [PMID: 39055152 PMCID: PMC11267545 DOI: 10.1021/jacsau.4c00392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/15/2024] [Accepted: 06/18/2024] [Indexed: 07/27/2024]
Abstract
Enzymatic molecular in situ self-assembly (E-MISA) that enables the synthesis of high-order nanostructures from synthetic small molecules inside a living subject has emerged as a promising strategy for molecular imaging and theranostics. This strategy leverages the catalytic activity of an enzyme to trigger probe substrate conversion and assembly in situ, permitting prolonging retention and congregating many molecules of probes in the targeted cells or tissues. Enhanced imaging signals or therapeutic functions can be achieved by responding to a specific enzyme. This E-MISA strategy has been successfully applied for the development of enzyme-activated smart molecular imaging or theranostic probes for in vivo applications. In this Perspective, we discuss the general principle of controlling in situ self-assembly of synthetic small molecules by an enzyme and then discuss the applications for the construction of "smart" imaging and theranostic probes against cancers and bacteria. Finally, we discuss the current challenges and perspectives in utilizing the E-MISA strategy for disease diagnoses and therapies, particularly for clinical translation.
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Affiliation(s)
- Xidan Wen
- Department
of Nuclear Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital
of Medical School, Nanjing University, Nanjing 210008, China
- State
Key Laboratory of Analytical Chemistry for Life Science, Chemistry
and Biomedicine Innovation Center (ChemBIC), School of Chemistry and
Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Chao Zhang
- Department
of Neurosurgery, Zhujiang Hospital, Southern
Medical University, Guangzhou 510282, China
| | - Yuyang Tian
- State
Key Laboratory of Analytical Chemistry for Life Science, Chemistry
and Biomedicine Innovation Center (ChemBIC), School of Chemistry and
Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Yinxing Miao
- State
Key Laboratory of Analytical Chemistry for Life Science, Chemistry
and Biomedicine Innovation Center (ChemBIC), School of Chemistry and
Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Shaohai Liu
- State
Key Laboratory of Analytical Chemistry for Life Science, Chemistry
and Biomedicine Innovation Center (ChemBIC), School of Chemistry and
Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Jing-Juan Xu
- State
Key Laboratory of Analytical Chemistry for Life Science, Chemistry
and Biomedicine Innovation Center (ChemBIC), School of Chemistry and
Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Deju Ye
- State
Key Laboratory of Analytical Chemistry for Life Science, Chemistry
and Biomedicine Innovation Center (ChemBIC), School of Chemistry and
Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Jian He
- Department
of Nuclear Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital
of Medical School, Nanjing University, Nanjing 210008, China
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3
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Tang F, Wang B, Li J, Xu J, Zeng J, Gao W, Chen K. Water-soluble silver nanoclusters with multicolor fluorescence generated by dialdehyde nanofibrillated cellulose for biological imaging. Carbohydr Polym 2024; 336:122138. [PMID: 38670763 DOI: 10.1016/j.carbpol.2024.122138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/20/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024]
Abstract
Water-soluble silver nanoclusters (AgNCs) as a new type of fluorescent material have attracted much attention for their remarkable optical properties and excellent cytocompatibility. However, it is still challenging to synthesize water-soluble AgNCs with good cytocompatibility and excellent fluorescence. Herein, the dialdehyde nanofibrillated cellulose (DANFC)- reduced water-soluble AgNCs capped by glutathione (GSH) with tunable fluorescence emissions were first reported. The DANFC provides a mild reduction environment and crystal growth system for the coordination between silver ions and GSH compared to conventional methods using strong reducing agents. The AgNCs with intense red fluorescence (R-AgNCs@GSH, size ∼2.24 nm) and green fluorescence (G-AgNCs@GSH, size ∼1.93 nm) were produced by varying the ratios of silver sources and ligands, and could maintain stable fluorescence intensity over 6 months. Moreover, the CCK-8 study demonstrated that the R-AgNCs@GSH and G-AgNCs@GSH reduced by DANFC of excellent cytocompatibility (cell viability >90 %) and enable precise multicolor intracellular imaging of Hela cells in 1 h. This work proposes a novel method to synthesize water-soluble AgNCs with tunable fluorescence emission at room temperature based on the classical silver- mirror reaction (SMR) using DANFC as reducing agent, and the synthesized fluorescent AgNCs have great potential as novel luminescent nanomaterials in biological research.
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Affiliation(s)
- Feiyu Tang
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Bin Wang
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Jinpeng Li
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China; Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Jun Xu
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jinsong Zeng
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wenhua Gao
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kefu Chen
- Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
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4
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Chen Z, Cheng C, Liu L, Lin B, Xiong Y, Zhu W, Zheng K, He B. Tyrosine Mutation in the Characteristic Motif of the Amorphous Region of Spidroin for Self-Assembly Capability Enhancement. ACS OMEGA 2024; 9:22441-22449. [PMID: 38799334 PMCID: PMC11112579 DOI: 10.1021/acsomega.4c02477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/12/2024] [Accepted: 04/26/2024] [Indexed: 05/29/2024]
Abstract
Spidroin, with robust mechanical performance and good biocompatibility, could fulfill broad applications in material science and biomedical fields. Development of miniature spidroin has made abundant fiber production economically feasible, but the mechanical properties of artificial silk still fall short of natural silk. The mechanism behind mechanical properties of spidroin usually focuses on β-microcrystalline regions; the effect of amorphous regions was barely studied. In this study, residue tyrosines (Y) were designed to replace asparagine (N)/glutamic acid (Q) in the characteristic motifs (GGX)n in amorphous regions for performance enhancement of spidroin; the mutants presented lower free energy and significantly exhibited stronger van der Waals and electrostatic interactions, which might result from π-π stacking interactions between the phenyl rings in the side chain of tyrosine. Additionally, the soluble expressions of wild-type spidroin and mutant spidroin were achieved when heterologously expressed in E. coli, with yields of 560 mg/L (2REP), 590 mg/L (2REPM), 240 mg/L (4REP), and 280 mg/L (4REPM). Significantly, secondary structure analysis confirmed that the mutant spidroin more avidly forms more β-sheets than the wild-type spidroin, and aggregation morphology suggested that mutant spidroin displayed better self-assembly capacity and was easier to form artificial spider silk fibers; in particular, self-assembled 4REPM nanofibrils had an average modulus of 11.2 ± 0.35 GPa, about 2 times higher than self-assembled B. mori silk nanofibrils and almost the same as that of native spider dragline silk fibers (10-15 GPa). Thus, we first demonstrated a new influence mechanism of the amorphous region's characteristic motif on the self-assembly and material properties of spidroin. Our study provides a reference for the design of high-performance material proteins and their heterologous preparation.
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Affiliation(s)
- Ziyang Chen
- College
of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing 211816, China
| | - Cheng Cheng
- School
of Pharmaceutical Sciences, Nanjing Tech
University, No. 30 Puzhu South Road, Nanjing 211816, China
| | - Li Liu
- Biomass
Molecular Engineering Center and Department of Materials Science and
Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Baoyang Lin
- College
of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing 211816, China
| | - Yongji Xiong
- College
of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing 211816, China
| | - Weiyu Zhu
- School
of Pharmaceutical Sciences, Nanjing Tech
University, No. 30 Puzhu South Road, Nanjing 211816, China
| | - Ke Zheng
- Biomass
Molecular Engineering Center and Department of Materials Science and
Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Bingfang He
- School
of Pharmaceutical Sciences, Nanjing Tech
University, No. 30 Puzhu South Road, Nanjing 211816, China
- College
of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing 211816, China
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5
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Pradhan MK, Misra N, Sahala F, Pradhan NP, Srivastava A. Divergent self-assembly propensity of enantiomeric phenylalanine amphiphiles that undergo pH-induced nanofiber-to-nanoglobule conversion. SOFT MATTER 2024; 20:3602-3611. [PMID: 38576362 DOI: 10.1039/d4sm00117f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
This study presents the pathway diversity in the self-assembly of enantiomeric single phenylalanine derived amphiphiles (single F-PDAs), viz.L-NapF-EDA and D-NapF-EDA, that form supramolecular hydrogels at varied concentrations (≥1 mg mL-1 and ≥3 mg mL-1, respectively). By fitting the variable temperature circular dichroism (VT-CD) data to the isodesmic model, various thermodynamic parameters associated with their self-assembly, such as association constant (K), changes in enthalpy (ΔH), entropy (ΔS), and Gibbs free energy (ΔG), were extracted. The self-assembly of these single F-PDAs was found to be enthalpy-driven but entropically-disfavored. Although self-assembly of the D-isomer was slow, it also exhibited greater free energy of association than the L-isomer. Consequently, thermally and mechanically more robust self-assemblies were formed by the D-isomer than the L-isomer. We term these results as the "butterfly effect in self-assembly" wherein the difference in the stereochemical orientation of the residues at a single chiral center present in these molecules resulted in strong differences in the self-assembly propensity as well as in their thermal and mechanical stability. These single F-PDAs form helical nanofibers of opposite chirality upon self-assembly at basic pH (≥8) that produce intense CD signals. However, upon decreasing the pH, a gradual nanofiber-to-nanoglobular transformation was noticed due to protonation-induced structural changes in the PDAs.
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Affiliation(s)
- Manas Kumar Pradhan
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Nayanika Misra
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Fathima Sahala
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Nyaya Prakash Pradhan
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education and Research, Bhauri, Bhopal By-pass Road, Bhopal-462066, India.
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6
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Wang Y, Zhong H, Zhao B, Deng J. High Internal Phase Emulsion for Constructing Chiral Helical Polymer-Based Circularly Polarized Luminescent Porous Materials. ACS APPLIED MATERIALS & INTERFACES 2024; 16:17918-17926. [PMID: 38535995 DOI: 10.1021/acsami.4c01768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Polymerized high internal phase emulsions (polyHIPEs) with circularly polarized luminescence (CPL), as an interesting class of porous materials, are of great significance for the development of CPL porous materials but have not been reported so far. Herein, we report the construction of polyHIPE-based CPL porous materials, taking advantage of an adsorption strategy. The pristine polyHIPEs constructed by chiral helical polymers, which acted as a chiral microenvironment, were fabricated by coordination polymerization of chiral acetylene monomers (R/S-SA) using HIPEs as templates. Achiral fluorescent small molecules were dispersed in the pores of the 3D porous organic chiral polymer matrix provided by polyHIPEs through the adsorption strategy, and CPL-active porous materials with blue, cyan, and green emissions were constructed using a fluorescence-selective absorption mechanism that does not rely on chirality transfer at the molecular level. The maximum luminescence dissymmetry factor (glum) value was -2.6 × 10-2. This work establishes a new and simple way for developing CPL porous materials.
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Affiliation(s)
- Yanan Wang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hai Zhong
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Biao Zhao
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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7
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Zheng Y, Zhong B, Ji W, Wei S, Liu X, Fu M, Wang Z, Wang L. Guiding the Formation of Metal-Organic Structures of 1,4-Diaminoanthraquinone through Surface-Based Cu Atoms. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:4845-4851. [PMID: 38373703 DOI: 10.1021/acs.langmuir.3c03733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The gradual guidance of the formation of metal-organic structures through surface-based Cu atoms for 1,4-diaminoanthraquinones (DAQs) has been studied by scanning tunneling microscopy (STM) at room temperature. On the Ag(110) surface, the transition from a hydrogen-bond network structure to metal-organic coordination structures of DAQs can be induced by introducing foreign copper atoms. Due to the weak interaction between DAQs and Ag(110), thermal treatment easily leads to the desorption of DAQs from the surface. To address this challenge, Cu(111) is selected as the substrate. Under thermal driving and in the presence of copper adatoms, the hydrogen-bond network structure of DAQs on the surface gradually undergoes a transition into a metal-coordinated structure, eventually leading to the formation of metal-organic complexes through amino dehydrogenation. It is demonstrated that the construction of a metal-organic coordination structure on metal surfaces is a result of the competition among factors such as metal atoms, functional groups of molecules, surface chemical activity, and temperature.
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Affiliation(s)
- Yulong Zheng
- Department of Physics, Nanchang University, Nanchang 330031, China
| | - Binghuang Zhong
- Department of Physics, Nanchang University, Nanchang 330031, China
| | - Wenjie Ji
- Department of Physics, Nanchang University, Nanchang 330031, China
| | - Sheng Wei
- Department of Physics, Nanchang University, Nanchang 330031, China
| | - Xiaoqing Liu
- Department of Physics, Nanchang University, Nanchang 330031, China
| | - Mingming Fu
- Department of Physics, Nanchang University, Nanchang 330031, China
| | - Zhongping Wang
- Department of Physics, Nanchang University, Nanchang 330031, China
| | - Li Wang
- Department of Physics, Nanchang University, Nanchang 330031, China
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8
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Zhang F, Shen Z, Sui K, Liu M. Disassembly of spherical structures into nanohelices by good solvent dilution. J Colloid Interface Sci 2024; 657:853-857. [PMID: 38091908 DOI: 10.1016/j.jcis.2023.12.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/30/2023] [Accepted: 12/09/2023] [Indexed: 01/02/2024]
Abstract
Supramolecular self-assembly of low molecular weight molecules into various organic nanostructures has attracted considerable research interest. However, preparing organic nanostructures through a top-down method, such as the disassembly of one large structure into many smaller nanoscale nanostructures, still remains a big challenge. Here, we make use of anti-solvent method to regulate the hierarchical self-assembly of an achiral C3-symmetric molecule in THF/water to prepare various nanostructures, including spherical structures, nanofibers, nanoribbons and nanotwists. Interestingly, the spherical structures could disassemble into nanohelices through good solvent dilution, providing a nanoscale top-down method to prepare organic nanostructures.
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Affiliation(s)
- Fang Zhang
- College of Materials Science and Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
| | - Zhaocun Shen
- College of Materials Science and Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China.
| | - Kunyan Sui
- College of Materials Science and Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Qingdao University, Qingdao 266071, PR China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
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9
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Zhou C, Sun DW, Ma J, Qin A, Tang BZ, Lin XR, Cao SL. Assembly-Induced Emission of Copper Nanoclusters: Revealing the Sensing Mechanism for Detection of Volatile Basic Nitrogen in Seafood Freshness On-Site Monitoring. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6533-6547. [PMID: 38261539 PMCID: PMC10859926 DOI: 10.1021/acsami.3c13321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 01/25/2024]
Abstract
Total volatile basic nitrogen (TVB-N) is a vital indicator for assessing seafood freshness and edibility. Rapid on-site detection of volatile basic nitrogen (VBN) is of significant importance for food safety monitoring. In this study, highly luminescent self-assembled copper nanoclusters (Cu NCs@p-MBA), synthesized using p-mercaptobenzoic acid (p-MBA) as the ligand, were utilized for the sensitive detection of VBNs. Under acidic conditions, Cu NCs@p-MBA formed compact and well-organized nanosheets through noncovalent interactions, accompanied by intense orange fluorescence emission (651 nm). The benzene carboxylic acid part of Cu NCs@p-MBA provided the driving force for supramolecular assembly and exhibited a strong affinity for amines, particularly low-molecular-weight amines such as ammonia (NH3) and trimethylamine (TMA). The quantitative determination of NH3 and TMA showed the detection limits as low as 0.33 and 0.81 ppm, respectively. Cu NCs@p-MBA also demonstrated good responsiveness to putrescine and histamine. Through density functional theory (DFT) calculations and molecular dynamics (MD) simulations, the precise atomic structure, assembly structure, luminescent properties, and reaction processes of Cu NCs@p-MBA were studied, revealing the sensing mechanism of Cu NCs@p-MBA for highly sensitive detection of VBNs. Based on the self-assembled Cu NCs@p-MBA nanosheets, portable fluorescent labels were developed for semiquantitative, visual, and real-time monitoring of seafood freshness. Therefore, this study exemplified the high sensitivity of self-assembly induced emission (SAIE)-type Cu NCs@p-MBA for VBNs sensing, offering an efficient solution for on-site monitoring of seafood freshness.
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Affiliation(s)
- Chenyue Zhou
- School
of Food Science and Engineering, South China
University of Technology, Guangzhou 510641, China
- Academy
of Contemporary Food Engineering, South
China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
- Engineering
and Technological Research Centre of Guangdong Province on Intelligent
Sensing and Process Control of Cold Chain Foods, & Guangdong Province
Engineering Laboratory for Intelligent Cold Chain Logistics Equipment
for Agricultural Products, Guangzhou Higher
Education Mega Centre, Guangzhou 510006, China
| | - Da-Wen Sun
- School
of Food Science and Engineering, South China
University of Technology, Guangzhou 510641, China
- Academy
of Contemporary Food Engineering, South
China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
- Engineering
and Technological Research Centre of Guangdong Province on Intelligent
Sensing and Process Control of Cold Chain Foods, & Guangdong Province
Engineering Laboratory for Intelligent Cold Chain Logistics Equipment
for Agricultural Products, Guangzhou Higher
Education Mega Centre, Guangzhou 510006, China
- Food
Refrigeration and Computerized Food Technology (FRCFT), Agriculture
and Food Science Centre, University College
Dublin, National University of Ireland, Belfield, Dublin 4, Ireland
| | - Ji Ma
- School
of Food Science and Engineering, South China
University of Technology, Guangzhou 510641, China
- Academy
of Contemporary Food Engineering, South
China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
- Engineering
and Technological Research Centre of Guangdong Province on Intelligent
Sensing and Process Control of Cold Chain Foods, & Guangdong Province
Engineering Laboratory for Intelligent Cold Chain Logistics Equipment
for Agricultural Products, Guangzhou Higher
Education Mega Centre, Guangzhou 510006, China
- State
Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced
Emission, South China University of Technology, Guangzhou 510640, China
| | - Anjun Qin
- State
Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced
Emission, South China University of Technology, Guangzhou 510640, China
| | - Ben Zhong Tang
- State
Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced
Emission, South China University of Technology, Guangzhou 510640, China
- Shenzhen
Institute of Aggregate Science and Technology, School of Science and
Engineering, The Chinese University of Hong
Kong, Shenzhen 518172, China
| | - Xiao-Ru Lin
- Guangdong
Key Laboratory of Food Intelligent Manufacturing, Foshan University, Foshan 528000, China
| | - Shi-Lin Cao
- Guangdong
Key Laboratory of Food Intelligent Manufacturing, Foshan University, Foshan 528000, China
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10
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Feng N, Wang Z, Sun D, Zhang L, Xin X, Sun P, Azam M, Li H. Kinetically Controlled Structural Modulation of the Self-Assembled Silver Nanoclusters. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305366. [PMID: 37792210 DOI: 10.1002/smll.202305366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/07/2023] [Indexed: 10/05/2023]
Abstract
Metal nanoclusters (NCs) with atomic precision are growing into a fascinating class of building blocks for supramolecular chemistry. What makes it more interesting is the enhanced optical properties of the ordered structures, including aggregation-induced emission (AIE). However, algorithm dictating the self-assembly of metal NCs in multicomponent environment remains largely unknown, and effective means to manipulate the self-assembly is still lacking, especially under kinetic control. Herein, nanofibers which contain sub-1 nm nanowires and exhibit circularly polarized phosphorescence (CPP) are obtained from crystallization-induced self-assembly (CISA) of water-soluble, negatively charged silver NCs (Ag9 -NCs) in the presence of glutamic acid (Glu). By the introduction of a positively-charged additive (choline chloride, CC), the structure of the nanowires is modulated and the lateral interaction between adjacent nanofibers is adjusted, leading to simultaneous improvement of the phosphorescence and chirality which finally enhances CPP. Importantly, changing the time at which CC is introduced altered the kinetic pathway of the CISA, which enables to effectively manipulate both the final structures of the self-assembled Ag9 -NCs and the output of the optical signals.
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Affiliation(s)
- Ning Feng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Zhi Wang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Di Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Lizhi Zhang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China
- Key Laboratory of China Research Institute of Daily Chemistry Co., Ltd, Sinolight Corporation, Taiyuan, 030001, P. R. China
| | - Xia Xin
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Panpan Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Mohammad Azam
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China
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11
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Wang W, Liu T, Zhao T, Sun D, Li H, Xing P, Xin X. Self-Assembly of Atomically Precise Silver Nanoclusters in Crowded Colloids into Ultra-Long Ribbons with Tunable Supramolecular Chirality. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305102. [PMID: 37985804 PMCID: PMC10767393 DOI: 10.1002/advs.202305102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/22/2023] [Indexed: 11/22/2023]
Abstract
Atomically precise metal nanoclusters (NCs) emerge as fascinating synthons in self-assembled materials. The self-assembly of metal NCs are highly sensitive to the environment because they have an inorganic-organic hybridized structure and a relatively complicated conformation. Here, it is shown that when confined in crowded colloids, a water-soluble Ag9 -cored nanocluster (Ag9 -NC) can self- assemble into ultra-long (up to millimeters) and photoluminescent ribbons with high flexibility. The ribbon contains rectangularly organized columns of Ag9 -NCs and can undergo secondary self-assembly to form bundled and branched structures. Formation of ribbons is observed in all the tested colloids, including lyotropic liquid crystals and disordered, three-dimensional network. The high viscosity/elasticity of the crowded colloids weakens gravity-induced sedimentation of the ribbons, leading to the formation of an interesting class of inorganic-organic composite materials where the hard Ag-containing skeleton strengthens the soft matter. The simultaneously occurring symmetry breaking during the self-assembly of Ag9 -NCs gives uncontrolled supramolecular chirality, which can be tuned through the majority rule and soldier-and-sergeant rule by the introduction of chiral seeds. The regulated chirality and the intrinsic photoluminescence of the Ag9 -NCs ribbons impart the composite material circularly polarized luminescence, opening the door for a variety of potential applications.
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Affiliation(s)
- Wenjuan Wang
- Key Laboratory of Colloid and Interface ChemistryMinistry of EducationNational Engineering Research Center for Colloidal MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJi'nan250100P. R. China
| | - Tong Liu
- Key Laboratory of Colloid and Interface ChemistryMinistry of EducationNational Engineering Research Center for Colloidal MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJi'nan250100P. R. China
| | - Ting Zhao
- Key Laboratory of Colloid and Interface ChemistryMinistry of EducationNational Engineering Research Center for Colloidal MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJi'nan250100P. R. China
| | - Di Sun
- Key Laboratory of Colloid and Interface ChemistryMinistry of EducationNational Engineering Research Center for Colloidal MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJi'nan250100P. R. China
| | - Hongguang Li
- Key Laboratory of Colloid and Interface ChemistryMinistry of EducationNational Engineering Research Center for Colloidal MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJi'nan250100P. R. China
| | - Pengyao Xing
- Key Laboratory of Colloid and Interface ChemistryMinistry of EducationNational Engineering Research Center for Colloidal MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJi'nan250100P. R. China
| | - Xia Xin
- Key Laboratory of Colloid and Interface ChemistryMinistry of EducationNational Engineering Research Center for Colloidal MaterialsSchool of Chemistry and Chemical EngineeringShandong UniversityJi'nan250100P. R. China
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12
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Wang YJ, Shi XY, Xing P, Dong XY, Zang SQ. Halogen bonding-driven chiral amplification of a bimetallic gold-copper cluster through hierarchical assembly. SCIENCE ADVANCES 2023; 9:eadj9013. [PMID: 37992176 PMCID: PMC10664983 DOI: 10.1126/sciadv.adj9013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/23/2023] [Indexed: 11/24/2023]
Abstract
Understanding the fundamentals and applications of chirality relies substantially on the amplification of chirality through hierarchical assemblies involving various weak interactions. However, a notable challenge remains for metal clusters chiral assembly driven by halogen bonding, despite their promising applications in lighting, catalysis, and biomedicine. Here, we used halogen bonding-driven assembly to achieve a hierarchical degree of achiral emissive Au2Cu2 clusters. From single crystals to one-dimensional ribbons and then to helixes, the morphologies were primarily modulated by intermolecular halogen bonding that evoked by achiral or/and chiral iodofluorobenzene (IFBs) molecules. Concomitantly, the luminescence and circularly polarized luminescence (CPL) changed a lot, ultimately leading to a substantial increase in the luminescence dissymmetry g-factor (glum) of 0.036 in the supramolecular helix. This work opens an avenue for hierarchical assemblies using predesigned metal clusters as building blocks though directional halogen bonding. This achievement marks a noteworthy advancement in the field of nanosized inorganic functional blocks.
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Affiliation(s)
- Ya-Jie Wang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Xiao-Yan Shi
- Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Pengyao Xing
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
| | - Xi-Yan Dong
- Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, People's Republic of China
| | - Shuang-Quan Zang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, People's Republic of China
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13
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Mahato P, Thomas AS, Yadav R, Rai S, Shekhar S, Mukherjee S. Solvent-Induced Modulation in the Optical Properties of Copper Nanoclusters and Revealing the Isomeric Effect of Templates. Chem Asian J 2023; 18:e202300442. [PMID: 37368476 DOI: 10.1002/asia.202300442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/19/2023] [Accepted: 06/26/2023] [Indexed: 06/28/2023]
Abstract
The solvent plays an influential role in controlling the nucleation process of metal nanoclusters (MNCs) and thereby significantly modulates their optical signatures. Herein, we have demonstrated the solvent-induced modulation in the optical properties of copper nanoclusters (CuNCs), primarily governed by the solvent polarity. During the preparation of para-mercaptobenzoic acid (p-MBA)-templated CuNCs, the simultaneous formation of blue-emitting CuNCs (B-CuNCs) and red-emitting CuNCs (R-CuNCs) were observed up to 7 h of reaction time, reflected from the systematic increment in the photoluminescence (PL) intensity at 420 nm and 615 nm, respectively. However, after 7 h of reaction time, the exclusive formation of B-CuNCs was observed. Such simultaneous growth and depletion dynamics of CuNCs result in a significant modulation in their optical properties. The variation of the solvent from water to less polar solvents such as DMSO and DMF restricts this inter-cluster dynamics by stabilizing both the CuNCs (B-CuNCs and R-CuNCs). Thereby, a single-component White Light Emission (WLE) was realized in DMSO with CIE coordinates (0.37, 0.36). The isomeric effect of the templates has also been investigated which extensively controls the optical and catalytic properties of the CuNCs.
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Affiliation(s)
- Paritosh Mahato
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462 066, Madhya Pradesh, India
| | - Amar S Thomas
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462 066, Madhya Pradesh, India
| | - Rahul Yadav
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462 066, Madhya Pradesh, India
| | - Saurabh Rai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462 066, Madhya Pradesh, India
| | - Shashi Shekhar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462 066, Madhya Pradesh, India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462 066, Madhya Pradesh, India
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14
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Wang S, He W, Cui Y, Zhou Z, Ma L, Zang SQ. Atomically precise chiral silver clusters based on non-chiral ligands for acid/base stimulated luminescence response. NANOSCALE 2023. [PMID: 37466042 DOI: 10.1039/d3nr03095d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Chiral metal nanoclusters synthesized by non-chiral ligands are usually in the form of racemates. Thus, resolving racemic compounds continues to be a great challenge. Herein, we report a case of the racemic compound hexanuclear silver cluster (Ag6-Rac) protected by the non-chiral sulfhydryl ligand sodium 1H-1,2,3-triazole-5-thiolate (SHTT) and 2,6-bis(diphenylphosphino)pyridine (dpppy). The homochiral clusters in Ag6-Rac are able to spontaneously crystallize and undergo chiral resolution to obtain a racemic conglomerate (Ag6-S/Ag6-R) by solvent-induced crystallization. Interestingly, the Ag6-Rac clusters exhibit strong luminescence in solid and solution, which can respond to trifluoroacetic acid (TFA) and reversible cycling over five times using diethylamine (DEA). This work provides a new research model for resolving racemic clusters and constructing stimulus-responsive clusters.
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Affiliation(s)
- Shuaibo Wang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Weimiao He
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Yujia Cui
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhan Zhou
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, China
| | - Lufang Ma
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, China
| | - Shuang-Quan Zang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
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15
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Tumskiy R, Khlebtsov B, Tumskaia A, Evstigneeva S, Antoshkina E, Zakharevich A, Khlebtsov NG. Enhanced Antibacterial Activity of Novel Fluorescent Glutathione-Capped Ag Nanoclusters. Int J Mol Sci 2023; 24:ijms24098306. [PMID: 37176012 PMCID: PMC10179335 DOI: 10.3390/ijms24098306] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/27/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Ag nanomaterials are promising candidates for the discovery of next-generation antibiotics with a high antibacterial effect against multi-drug resistant strains. This paper reports a simple synthesis of novel water-soluble glutathione-capped silver nanoclusters (GSH-Ag NCs) with an enhanced antibacterial activity. According to thin layer chromatography (TLC), the synthesized GSH-Ag NCs are an individual fraction of the same composition without any impurities. According to matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) and energy dispersive X-ray (EDX) analyses, the silver core of the GSH-Ag NCs contains approximately 35 silver atoms, and the molecular weight of these nanoclusters is about 11 kDa. The fabricated silver nanoclusters have a reddish fluorescence (λex/λem = 509/645 nm), with a large Stokes shift (>130 nm), and ultra-small size (less than 2 nm) according to transmission electron microscopy (TEM) data and dynamic light scattering (DLS) analysis. The antibacterial activity and minimal inhibitory concentrations of the silver nanoclusters towards Escherichia coli, Staphylococcus aureus, Bacillus cereus and Enterobacter cloacae were evaluated using the agar well-diffusion method and resazurin metabolism assay. The antibacterial activity of chelated silver in the nanoclusters was found to be significantly higher compared to the activity of free silver ions. To explain the possible mechanisms underlying the antibacterial actions of the GSH-Ag nanoclusters, molecular docking was performed, and prospective bacterial targets were identified using AutoDock.
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Affiliation(s)
- Roman Tumskiy
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 Saratov, Russia
| | - Boris Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 Saratov, Russia
| | | | - Stella Evstigneeva
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 Saratov, Russia
| | - Evgeniya Antoshkina
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS), 28 Vavilova Str, Bld.1, 119334 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, 9 Institutskiy per., 141700 Dolgoprudny, Russia
| | | | - Nikolai G Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 Saratov, Russia
- Institute of Physics, Saratov State University, 410012 Saratov, Russia
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16
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Sang Y, Zhu Q, Zhou X, Jiang Y, Zhang L, Liu M. Ultrasound-Directed Symmetry Breaking and Spin Filtering of Supramolecular Assemblies from only Achiral Building Blocks. Angew Chem Int Ed Engl 2023; 62:e202215867. [PMID: 36522559 DOI: 10.1002/anie.202215867] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Herein we describe the self-assembly of an achiral molecule into macroscopic helicity as well as the emergent chiral-selective spin-filtering effect. It was found that a benzene-1,3,5-tricarboxamide (BTA) motif with an aminopyridine group in each arm could coordinate with AgI and self-assemble into nanospheres. Upon sonication, symmetry breaking occurred and the nanospheres transferred into helical nanofibers with strong CD signals. Although the sign of the CD signals appeared randomly, it could be controlled by using the as-made chiral assemblies as a seed. Furthermore, it was found that the charge transport of the helical nanofibers was highly selective with a spin-polarization transport of up to 45 %, although the chiral nanofibers are composed exclusively from achiral building blocks. This work demonstrates symmetry breaking under sonication and the chiral-selective spin-filtering effect.
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Affiliation(s)
- Yutao Sang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Department, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, 76100, Israel.,University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Qirong Zhu
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Xiaoqin Zhou
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Department, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yuqian Jiang
- Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Li Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Department, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Department, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100190, P. R. China
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17
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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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18
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Zhang Y, Li Y, Quan Y, Ye S, Cheng Y. Remarkable White Circularly Polarized Electroluminescence Based on Chiral Co-assembled Helix Nanofiber Emitters. Angew Chem Int Ed Engl 2023; 62:e202214424. [PMID: 36331071 DOI: 10.1002/anie.202214424] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Indexed: 11/06/2022]
Abstract
White circularly polarized organic light-emitting diodes (CP-WOLEDs) are of great significance in potential lighting sources and full-color 3D displays. However, High-performance white CP-EL sources are almost unexplored. We have constructed full-color CP-EL devices based on chiral co-assemblies by using three achiral conjugated pyrene-based dyes (BP, w-WP and c-WP) doped with chiral binaphthyl-based enantiomers (S-/R-M) as the EMLs through an intermolecular chirality induction mechanism. (S-/R-M)0.2 -(c-WP)0.8 films exhibit regular helix nanofibers under annealing treatment and emit strong white CPL. Significantly, remarkable CP-WOLEDs based on (S-/R-M)0.2 -(c-WP)0.8 were achieved with |gEL | values as high as 6.2×10-2 and an excellent CRI of 98 at the CIE coordinates of (0.33, 0.33). These are the highest gEL and CRI values of reported CP-WOLEDs to date. This is the first achievement of CP-WOLEDs based on chiral co-assembled helix nanofiber emitters, and provides a valuable strategy with which to develop white CP-EL for future practical applications.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China
| | - Yupeng Li
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials, National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 210023, Nanjing, China
| | - Yiwu Quan
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China
| | - Shanghui Ye
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials, National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 210023, Nanjing, China
| | - Yixiang Cheng
- Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 210023, Nanjing, China
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19
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Liu Q, Li D, Lei X, Chen Y, Wang J, Liu A, Han B, He G. CuNCs-MOFs with hydrogen bonding sites: H2O-induced emission-enhanced phosphorescence-fluorescence conversion and high photo-Fenton catalytic performance. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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20
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Li S, Zhang S, Feng N, Zhang N, Zhu Y, Liu Y, Wang W, Xin X. Chiral Inversion and Recovery of Supramolecular Luminescent Copper Nanocluster Hydrogels Triggered by Polyethyleneimine and Polyoxometalates. ACS APPLIED MATERIALS & INTERFACES 2022; 14:52324-52333. [PMID: 36416052 DOI: 10.1021/acsami.2c16428] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Construction of controllable chiroptical supramolecular luminescence systems is of great significance for developing intelligent chiral luminescence materials with precise and effective regulation and understanding chirality-switching phenomena in biological systems, which has attracted extensive attention. Because chiral metal nanoclusters (NCs) can provide facilities for the study of nanoscale chiral effects, in this study, we select chiral glutathione-stabilized copper NCs (G-SH-Cu NCs) to construct a supramolecular luminescent hydrogel with achiral branched polyethyleneimine (PEI) and polyoxometalates [Na9(EuW10O36)·32H2O, denoted as EuW10]. Thus, a chiral property precise controlled system was constructed by self-assembly. Interestingly, the addition of PEI to G-SH-Cu NC solution induced the formation of luminescent hydrogels with chiral inversion, while further addition of EuW10 not only enhanced the luminescence of the hydrogel but also recovered the chiroptical properties. The chiral inversion behavior is possibly ascribed to the hydrogen bond interaction/electrostatic interaction between G-SH-Cu NCs and PEI in the chiral inversion process, while the competition of hydrogen bonding interaction (between G-SH-Cu NCs and PEI) and electrostatic interaction (between PEI and EuW10) was accountable for the chiral recovery process. Manipulation of chirality inversion in the metal NC-containing coassemblies is rare, while this work establishes a feasible strategy to modulate the chiral inversion behavior of Cu NCs, which not only produces new physicochemical properties of metal NCs through synergistic behavior but also offers a feasible way to realize the potential application of chiroptical materials.
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Affiliation(s)
- Shulin Li
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Shanshan Zhang
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Ning Feng
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Na Zhang
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yu Zhu
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yuhao Liu
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Wenjuan Wang
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xia Xin
- National Engineering Research Center for Colloidal Materials, Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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21
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22
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Lu C, Xu Y, Huang PJJ, Zandieh M, Wang Y, Zheng J, Liu J. Protection of DNA by metal ions at 95 °C: from lower critical solution temperature (LCST) behavior to coordination-driven self-assembly. NANOSCALE 2022; 14:14613-14622. [PMID: 36156621 DOI: 10.1039/d2nr03461a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
While polyvalent metal ions and heating can both degrade nucleic acids, we herein report that a combination of them leads to stabilization. After incubating 4 mM various metal ions and DNA oligonucleotides at 95 °C for 3 h at pH 6 or 8, metal ions were divided into four groups based on gel electrophoresis results. Mg2+ can stabilize DNA at pH 6 without forming stable nanoparticles at room temperature. Co2+, Cu2+, Cd2+, Mn2+ and Zn2+ all protected the DNA and formed nanoparticles, whereas the nanoparticles formed with Fe2+ and Ni2+ were so stable that they remained even in the presence of EDTA. At pH 8, Ce3+ and Pb2+ showed degraded DNA bands. For Mg2+, better protection was achieved with higher metal and DNA concentrations. By monitoring temperature-programmed fluorescence change, a sudden drop in fluorescence intensity attributable to the lower critical solution temperature (LCST) transition of DNA was found to be around 80 °C for Mg2+, while this transition temperature decreased with increasing Mn2+ concentration. The unexpected thermal stability of DNA enabled by metal ions is useful for extending the application of DNA at high temperatures, forming coordination-driven nanomaterials, and it might offer insights into the origin of life on the early Earth.
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Affiliation(s)
- Chang Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada.
| | - Yuancong Xu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada.
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China
| | - Po-Jung Jimmy Huang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada.
| | - Mohamad Zandieh
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada.
| | - Yihao Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada.
| | - Jinkai Zheng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada.
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Jing X, Fu F, Wang R, Xin X, Qin L, Lv H, Yang GY. Robust Enantiomeric Two-Dimensional Assembly of Atomically Precise Silver Clusters. ACS NANO 2022; 16:15188-15196. [PMID: 36053191 DOI: 10.1021/acsnano.2c06492] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The facile syntheses of enantiomeric atomically precise silver clusters starting from achiral ligands remain a substantial challenge to explore. In this work, a pair of atomically precise enantiomers of R/S-[Ag17Cl(iPrS)9S(CH3COO)5H2O] (R/S-Ag17, iPrS = isopropanethiolate) clusters have been synthesized using a viable solvothermal approach. The chirality of the resulting enantiomeric R/S-Ag17 clusters is attributed to the asymmetric arrangement of surface achiral ligands. Both R/S-Ag17 enantiomers could form the two-dimensional (2D) assemblies via intercluster interactions of basic building blocks containing Ag16S8 moieties, iPrS-Ag motifs, and S2- linkers. Such a small ligand-induced 2D assembly greatly contributes to the enhancement of thermal stability and photocatalytic activity of R/S-Ag17 clusters, providing possibilities for exploring robust coinage cluster-based assembly with attractive catalytic properties.
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Affiliation(s)
- Xuemeng Jing
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Fangyu Fu
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Ruijie Wang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Xing Xin
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Lin Qin
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Hongjin Lv
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, People's Republic of China
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24
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Ligand accommodation causes altered reactivity of silver clusters with iodomethane: superatomic stability of Ag9I2+ in mimicking XeF2. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1297-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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25
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Jana A, Unnikrishnan PM, Poonia AK, Roy J, Jash M, Paramasivam G, Machacek J, Adarsh KNVD, Base T, Pradeep T. Carboranethiol-Protected Propeller-Shaped Photoresponsive Silver Nanomolecule. Inorg Chem 2022; 61:8593-8603. [PMID: 35621298 DOI: 10.1021/acs.inorgchem.2c00186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the synthesis, structural characterization, and photophysical properties of a propeller-shaped Ag21 nanomolecule with six rotary arms, protected with m-carborane-9-thiol (MCT) and triphenylphosphine (TPP) ligands. Structural analysis reveals that the nanomolecule has an Ag13 central icosahedral core with six directly connected silver atoms and two more silver atoms connected through three Ag-S-Ag bridging motifs. While 12 MCT ligands protect the core through metal-thiolate bonds in a 3-6-3-layered fashion, two TPP ligands solely protect the two bridging silver atoms. Interestingly, the rotational orientation of a silver sulfide staple motif is opposite to the orientation of carborane ligands, resembling the existence of a bidirectional rotational orientation in the nanomolecule. Careful analysis reveals that the orientation of carborane ligands on the cluster's surface resembles an assembly of double rotors. The zero circular dichroism signal indicates its achiral nature in solution. There are multiple absorption peaks in its UV-vis absorption spectrum, characteristic of a quantized electronic structure. The spectrum appears as a fingerprint for the cluster. High-resolution electrospray ionization mass spectrometry proves the structure and composition of the nanocluster in solution, and systematic fragmentation of the molecular ion starts with the loss of surface-bound ligands with increasing collision energy. Its multiple optical absorption features are in good agreement with the theoretically calculated spectrum. The cluster shows a narrow near-IR emission at 814 nm. The Ag21 nanomolecule is thermally stable at ambient conditions up to 100 °C. However, white-light illumination (lamp power = 120-160 W) shows photosensitivity, and this induces structural distortion, as confirmed by changes in the Raman and electronic absorption spectra. Femtosecond and nanosecond transient absorption studies reveal an exceptionally stable excited state having a lifetime of 3.26 ± 0.02 μs for the carriers, spread over a broad wavelength region of 520-650 nm. The formation of core-centered long-lived carriers in the excited state is responsible for the observed light-activated structural distortion.
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Affiliation(s)
- Arijit Jana
- Department of Science and Technology (DST) Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology (IIT) Madras, Chennai 600036, India
| | - Parvathy M Unnikrishnan
- Department of Science and Technology (DST) Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology (IIT) Madras, Chennai 600036, India
| | - Ajay K Poonia
- Department of Physics, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Jayoti Roy
- Department of Science and Technology (DST) Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology (IIT) Madras, Chennai 600036, India
| | - Madhuri Jash
- Department of Science and Technology (DST) Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology (IIT) Madras, Chennai 600036, India
| | - Ganesan Paramasivam
- Department of Science and Technology (DST) Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology (IIT) Madras, Chennai 600036, India
| | - Jan Machacek
- Department of Synthesis, Institute of Inorganic Chemistry, The Czech Academy of Science 1001 Husinec, Rez 25068, Czech Republic
| | | | - Tomas Base
- Department of Synthesis, Institute of Inorganic Chemistry, The Czech Academy of Science 1001 Husinec, Rez 25068, Czech Republic
| | - Thalappil Pradeep
- Department of Science and Technology (DST) Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology (IIT) Madras, Chennai 600036, India
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26
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Kolay S, Bain D, Maity S, Devi A, Patra A, Antoine R. Self-Assembled Metal Nanoclusters: Driving Forces and Structural Correlation with Optical Properties. NANOMATERIALS 2022; 12:nano12030544. [PMID: 35159891 PMCID: PMC8838213 DOI: 10.3390/nano12030544] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 02/05/2023]
Abstract
Studies on self-assembly of metal nanoclusters (MNCs) are an emerging field of research owing to their significant optical properties and potential applications in many areas. Fabricating the desired self-assembly structure for specific implementation has always been challenging in nanotechnology. The building blocks organize themselves into a hierarchical structure with a high order of directional control in the self-assembly process. An overview of the recent achievements in the self-assembly chemistry of MNCs is summarized in this review article. Here, we investigate the underlying mechanism for the self-assembly structures, and analysis reveals that van der Waals forces, electrostatic interaction, metallophilic interaction, and amphiphilicity are the crucial parameters. In addition, we discuss the principles of template-mediated interaction and the effect of external stimuli on assembly formation in detail. We also focus on the structural correlation of the assemblies with their photophysical properties. A deep perception of the self-assembly mechanism and the degree of interactions on the excited state dynamics is provided for the future synthesis of customizable MNCs with promising applications.
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Affiliation(s)
- Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
| | - Dipankar Bain
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Subarna Maity
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
| | - Aarti Devi
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
- Correspondence: (A.P.); (R.A.)
| | - Rodolphe Antoine
- CNRS, Institut Lumière Matière UMR 5306, Univ Lyon, Université Claude Bernard Lyon 1, F-69100 Villeurbanne, France
- Correspondence: (A.P.); (R.A.)
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27
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Supramolecular Self-Assembly of Atomically Precise Silver Nanoclusters with Chiral Peptide for Temperature Sensing and Detection of Arginine. NANOMATERIALS 2022; 12:nano12030424. [PMID: 35159774 PMCID: PMC8839151 DOI: 10.3390/nano12030424] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 01/27/2023]
Abstract
Metal nanoclusters (NCs) as a new type of fluorescent material have attracted great interest due to their good biocompatibilities and outstanding optical properties. However, most of the studies on metal NCs focus on the synthesis, atomic or molecular assembly, whereas metal NCs ability to self-assemble to higher-level hierarchical nanomaterials through supramolecular interactions has rarely been reported. Herein, we investigate atomic precise silver NCs (Ag9-NCs, [Ag9(mba)9], where H2mba = 2-mercaptobenzoic acid) and peptide DD-5 were used to induce self-assembly, which can trigger an aggregation-induced luminescence (AIE) effect of Ag9-NCs through non-covalent forces (H-bond, π–π stacking) and argentophilic interactions [Ag(I)–Ag(I)]. The large Stokes shift (~140 nm) and the microsecond fluorescence lifetime (6.1 μs) indicate that Ag9-NCs/DD-5 hydrogel is phosphor. At the same time, the chirality of the peptide was successfully transferred to the achiral Ag9-NCs because of the supramolecular self-assembly, and the Ag9-NCs/DD-5 hydrogel also has good circularly polarized luminescence (CPL) properties. In addition, Ag9-NCs/DD-5 luminescent hydrogel is selective and sensitive to the detection of small biological molecule arginine. This work shows that DD-5 successfully induces the self-assembly of Ag9-NCs to obtain high luminescent gel, which maybe become a candidate material in the fields of sensors and biological sciences.
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28
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Halawa MI, Wu G, Salem AEA, Su L, Li BS, Zhang X. In situ synthesis of chiral AuNCs with aggregation-induced emission using glutathione and ceria precursor nanosheets for glutathione biosensing. Analyst 2022; 147:4525-4535. [DOI: 10.1039/d2an00939k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Au(i)–SG/Ce(CO3)2 NS conjugated nanoprobe was developed for selective GSH detection. The redox reaction between GSH and the NS could release Ce3+ ions to initiate the intense AIE of Au(i)–SG oligomers.
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Affiliation(s)
- Mohamed Ibrahim Halawa
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
- Guangdong Laboratory of Artificial Intelligence & Digital Economy (SZ), Shenzhen University, Shenzhen 518060, China
- College of Biomedical Engineering, International Health Science Innovation Center, Shenzhen Key Laboratory for Nano-Biosensing Technology, Health Science Center, Shenzhen University, Shenzhen 518060, China
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Guoxing Wu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Alaa Eldin A. Salem
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Lei Su
- Guangdong Laboratory of Artificial Intelligence & Digital Economy (SZ), Shenzhen University, Shenzhen 518060, China
| | - Bing Shi Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xueji Zhang
- Guangdong Laboratory of Artificial Intelligence & Digital Economy (SZ), Shenzhen University, Shenzhen 518060, China
- College of Biomedical Engineering, International Health Science Innovation Center, Shenzhen Key Laboratory for Nano-Biosensing Technology, Health Science Center, Shenzhen University, Shenzhen 518060, China
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