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Hormozi Jangi SR. Developing a label-free full-range highly selective pH nanobiosensor using a novel high quantum yield pH-responsive activated-protein-protected gold nanocluster prepared by a novel ultrasonication-protein-assisted procedure. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124829. [PMID: 39018671 DOI: 10.1016/j.saa.2024.124829] [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: 05/24/2024] [Revised: 07/02/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
A novel, label-free, ultra-selective, reproducible, and reversible pH nanobiosensor was developed for analyzing biofluids, food samples, and real water media utilizing a novel activated-protein-protected gold nanocluster with an ultra-narrow emission band, termed as ABSA-AuNCs. The ABSA-AuNCs were synthesized via a novel ultrasonication-protein-assisted procedure, for the first time, using activated bovine serum albumin as both capping and reducing agents. The ABSA-AuNCs revealed a highly narrow symmetric emission spectrum (λmax = 330.0 nm upon excitation at 312-317 nm), and a highly narrow size distribution of 2.9-3.7 nm along with an enhanced quantum yield of 28.3 %. At present, with a full width at half maximum (FWHM) of 14.0 nm, ABSA-AuNCs have the narrowest bandwidth of fluorescent nanomaterials reported to date. The ABSA-AuNCs were characterized for their stability, size, morphology, crystallinity, structural, and optical properties. The ABSA-AuNCs were found to be appropriate for constructing a label-free ultraselective pH nanobiosensor. A linear range over 2.0-11.0, fast response time of less than 5 s, and long-term stability of 99.7 % after 500 min were achieved. The %RSD for repeatability, intra-day reproducibility, and inter-day reproducibility was found to be 1.4 %, 1.7 %, and 2.3 %, in order, to reveal high repeatable and reproducible results. The selectivity of the pH biosensor was evaluated upon the addition of different interferents, indicating an excellent pH selectivity for the ABSA-AuNCs. Real sample analysis proved the feasibility of the ABSA-AuNCs for accurate, precise, and reliable pH sensing in biofluids (undiluted blood and urine), a variety of food samples, and several real water samples.
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Sharma P, Ganguly M, Doi A. Synergism between copper and silver nanoclusters induces fascinating structural modifications, properties, and applications. NANOSCALE 2024. [PMID: 39302164 DOI: 10.1039/d4nr03114h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
Among the group 11 transition metal elements, Cu and Ag are widely studied due to their cost effectiveness and easy availability. However, the synergism between copper and silver is also very promising, exhibiting intriguing structures, properties, and applications. Nanoclusters, which are missing links between atoms and nanoparticles, are highly fluorescent due to their discrete energy levels. Their fluorescence can be efficiently tuned because of the synergistic behaviour of copper and silver. Furthermore, their fluorescence can be selectively altered in the presence of various analytes and sensing platforms, as reported by various groups. Moreover, copper clusters can be utilized for sensing silver while silver nanoclusters can be utilized for sensing ionic copper due to the strong interaction between copper and silver. Furthermore, DFT studies have been performed to understand the structural modification due to CuAg synergism. A concise summary of the synergism between copper and silver can open a new window of research for young scientists venturing into the field of environmental nanoscience.
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Affiliation(s)
- Priyanka Sharma
- Solar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, India.
| | - Mainak Ganguly
- Solar Energy Conversion and Nanomaterials Laboratory, Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, India.
| | - Ankita Doi
- Department of BioSciences, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, India
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Hormozi Jangi SR. Developing a novel ultraselective and ultrasensitive label-free direct spectrofluorimetric nanobiosensor for direct highly fast field detection of explosive triacetone triperoxide. Anal Chim Acta 2024; 1320:343016. [PMID: 39142787 DOI: 10.1016/j.aca.2024.343016] [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: 04/26/2024] [Revised: 07/02/2024] [Accepted: 07/23/2024] [Indexed: 08/16/2024]
Abstract
BACKGROUND Direct detection of the notorious explosive triacetone triperoxide (TATP) is very difficult because it lacks facile ionization and UV absorbance or fluorescence. Besides, the current indirect methods are time-consuming and need a pre-step for TATP cleavage to hydrogen peroxide. Moreover, they commonly show significant false-positive results in the presence of some camouflage which limits their field applications. Herein, for the first time, a novel label-free field-applicable spectrofluorimetric nanobiosensor was developed for direct TATP detection using a novel activated-protein protected gold nanocluster (ABSA-AuNCs; QY = 28.3 %) synthesized by a combined protein-assisted-ultrasonication procedure. RESULTS The ABSA-AuNCs revealed a fluorescence spectrum centered at 330.0 nm which was significantly quenched by TATP (binding constant = 154.06 M-1; ΔG = -12.5 kJ mol-1; E(%) = 88.5 %). This phenomenon was used as a basis for direct TATP quantification, providing a working range of 0.01-40.0 mg L-1 and a detection limit of 6.7 μg L-1 which is the lowest LOD provided for TATP detection up to now. A %RSD of 0.9 % and 1.56 % was obtained for repeatability and inter-day reproducibility, respectively. The selectivity was checked against a variety of camouflages, revealing ultra-selectivity. Several synthetic samples prepared by several camouflages and real samples (clay soil and real water media) were analyzed, revealing quantitative recoveries of TATP. SIGNIFICANCE During the production of the notorious explosive TATP, it can be discharged into water and soil. This novel method eliminated the false-positive results of traditional methods and is applicable for direct quantitative detection of camouflaged TATP and its residues in real soil and water samples in a highly short response time (2 min). The camouflaged TATP analysis is important for tracking the terrorist attacks in field conditions and analysis of soil and water can provide a first indication of the location of the production site.
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Lin H, Song X, Chai OJH, Yao Q, Yang H, Xie J. Photoluminescent Characterization of Metal Nanoclusters: Basic Parameters, Methods, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401002. [PMID: 38521974 DOI: 10.1002/adma.202401002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/13/2024] [Indexed: 03/25/2024]
Abstract
Metal nanoclusters (MNCs) can be synthesized with atomically precise structures and molecule formulae due to the rapid development of nanocluster science in recent decades. The ultrasmall size range (normally < 2 nm) endows MNCs with plenty of molecular-like properties, among which photoluminescent properties have aroused extensive attention. Tracing the research and development processes of luminescent nanoclusters, various photoluminescent analysis and characterization methods play a significant role in elucidating luminescent mechanism and analyzing luminescent properties. In this review, it is aimed to systematically summarize the normally used photoluminescent characterizations in MNCs including basic parameters and methods, such as excitation/emission wavelength, quantum yield, and lifetime. For each key parameter, first its definition and meaning is introduced and then the relevant characterization methods including measuring principles and the revelation of luminescent properties from the collected data are discussed. Then, it is discussed in details how to explore the luminescent mechanism of MNCs and construct NC-based applications based on the measured data. By means of these characterization strategies, the luminescent properties of MNCs and NC-based designs can be explained quantitatively and qualitatively. Hence, this review is expected to provide clear guidance for researchers to characterize luminescent MNCs and better understand the luminescent mechanism from the measured results.
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Affiliation(s)
- Hongbin Lin
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xiaorong Song
- MOE Key Laboratory for Analytical Science of Food Safety and Biology and State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Osburg Jin Huang Chai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Qiaofeng Yao
- Key Laboratory of Organic Integrated Circuits, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Huanghao Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology and State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Jianping Xie
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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Casteleiro B, de Francesco T, Martinho JMG, Favier A, Charreyre MT, Moffitt MG, Farinha JPS. NIR-Emitting Gold Nanoclusters Encapsulated in PS- b-PEG Polymer Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1594-1603. [PMID: 38193745 DOI: 10.1021/acs.langmuir.3c02104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Gold nanoclusters (AuNCs) are an emerging type of luminescent probe, featuring good biocompatibility, high photostability, and large Stoke shifts. Their lack of colloidal stability is, however, a drawback for many applications. Here, we report the stabilization of AuNCs emitting in the NIR by a thiol-terminated polystyrene chain (Mn = 5000 g mol-1). The optical properties of this nanocomposite remain invariant for 2 years in THF. To use the PS5k-AuNCs in an aqueous environment, these were encapsulated into polymer micelles using a polystyrene-b-poly(ethylene glycol) copolymer. The resulting hierarchical constructs, with diameters of ca. 125 to 215 nm, have promising properties for applications as luminescent probes such as contrast agents for biomedical imaging.
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Affiliation(s)
- Bárbara Casteleiro
- Centro de Química Estrutural, Institute of Molecular Sciences and Department of Chemical Engineering, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, F-69621 Villeurbanne, France
- Department of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - Talita de Francesco
- Department of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - José Manuel Gaspar Martinho
- Centro de Química Estrutural, Institute of Molecular Sciences and Department of Chemical Engineering, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
| | - Arnaud Favier
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, F-69621 Villeurbanne, France
| | - Marie-Thérèse Charreyre
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, INSA Lyon, Université Jean Monnet, UMR 5223, Ingénierie des Matériaux Polymères, F-69621 Villeurbanne, France
| | - Matthew G Moffitt
- Department of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, British Columbia V8W 2Y2, Canada
| | - José Paulo Sequeira Farinha
- Centro de Química Estrutural, Institute of Molecular Sciences and Department of Chemical Engineering, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
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Ravindra Bhoge P, Chandra A, Kikkeri R. The Impact of Nanomaterial Morphology on Modulation of Carbohydrate-Protein Interactions. ChemMedChem 2023; 18:e202300262. [PMID: 37403554 DOI: 10.1002/cmdc.202300262] [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: 05/12/2023] [Revised: 06/30/2023] [Accepted: 06/30/2023] [Indexed: 07/06/2023]
Abstract
Carbohydrate-protein interactions (CPIs) play a crucial role in the regulation of various physiological and pathological processes within living systems. However, these interactions are typically weak, prompting the development of multivalent probes, including nanoparticles and polymer scaffolds, to enhance the avidity of CPIs. Additionally, the morphologies of glyco-nanostructures can significantly impact protein binding, bacterial adhesion, cellular internalization, and immune responses. In this review, we have examined the advancements in glyco-nanostructures of different shapes that modulate CPIs. We specifically emphasize glyco-nanostructures constructed from small-molecule amphiphilic carbohydrates, block copolymers, metal-based nanoparticles, and carbon-based materials, highlighting their potential applications in glycobiology.
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Affiliation(s)
- Preeti Ravindra Bhoge
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Ankita Chandra
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
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7
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Tan KF, In LLA, Vijayaraj Kumar P. Surface Functionalization of Gold Nanoparticles for Targeting the Tumor Microenvironment to Improve Antitumor Efficiency. ACS APPLIED BIO MATERIALS 2023; 6:2944-2981. [PMID: 37435615 DOI: 10.1021/acsabm.3c00202] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Gold nanoparticles (AuNPs) have undergone significant research for their use in the treatment of cancer. Numerous researchers have established their potent antitumor properties, which have greatly impacted the treatment of cancer. AuNPs have been used in four primary anticancer treatment modalities, namely radiation, photothermal therapy, photodynamic therapy, and chemotherapy. However, the ability of AuNPs to destroy cancer is lacking and can even harm healthy cells without the right direction to transport them to the tumor microenvironment. Consequently, a suitable targeting technique is needed. Based on the distinct features of the human tumor microenvironment, this review discusses four different targeting strategies that target the four key features of the tumor microenvironment, including abnormal vasculature, overexpression of specific receptors, an acidic microenvironment, and a hypoxic microenvironment, to direct surface-functionalized AuNPs to the tumor microenvironment and increase antitumor efficacies. In addition, some current completed or ongoing clinical trials of AuNPs will also be discussed below to further reinforce the concept of using AuNPs in anticancer therapy.
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Affiliation(s)
- Kin Fai Tan
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, UCSI University, No. 1, Jalan Menara Gading, Taman Connaught, Cheras, Kuala Lumpur 56000, Malaysia
| | - Lionel Lian Aun In
- Department of Biotechnology, Faculty of Applied Sciences, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Palanirajan Vijayaraj Kumar
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, UCSI University, No. 1, Jalan Menara Gading, Taman Connaught, Cheras, Kuala Lumpur 56000, Malaysia
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Sahoo K, Gazi TR, Roy S, Chakraborty I. Nanohybrids of atomically precise metal nanoclusters. Commun Chem 2023; 6:157. [PMID: 37495665 PMCID: PMC10372104 DOI: 10.1038/s42004-023-00958-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023] Open
Abstract
Atomically precise metal nanoclusters (NCs) with molecule-like structures are emerging nanomaterials with fascinating chemical and physical properties. Photoluminescence (PL), catalysis, sensing, etc., are some of the most intriguing and promising properties of NCs, making the metal NCs potentially beneficial in different applications. However, long-term instability under ambient conditions is often considered the primary barrier to translational research in the relevant application fields. Creating nanohybrids between such atomically precise NCs and other stable nanomaterials (0, 1, 2, or 3D) can help expand their applicability. Many such recently reported nanohybrids have gained promising attention as a new class of materials in the application field, exhibiting better stability and exciting properties of interest. This perspective highlights such nanohybrids and briefly explains their exciting properties. These hybrids are categorized based on the interactions between the NCs and other materials, such as metal-ligand covalent interactions, hydrogen-bonding, host-guest, hydrophobic, and electrostatic interactions during the formation of nanohybrids. This perspective will also capture some of the new possibilities with such nanohybrids.
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Affiliation(s)
- Koustav Sahoo
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Tapu Raihan Gazi
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Soumyadip Roy
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Indranath Chakraborty
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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9
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Tian Y, Zheng W, Zhang X, Wang Y, Xiao Y, Yao D, Zhang H. Triple Ligand Engineered Gold Nanoclusters with Enhanced Fluorescence and Device Compatibility for Efficient Electroluminescence Light-Emitting Diodes. NANO LETTERS 2023; 23:4423-4430. [PMID: 37129890 DOI: 10.1021/acs.nanolett.3c00725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Gold nanoclusters (Au NCs) are potential emitters for electroluminescent light-emitting diodes (EL-LEDs) but restricted by the limited photoluminescence quantum yield (PLQY) and poor device compatibility. Herein, triple ligand engineered Au NCs enable the fabrication of Au NC-based LEDs with improved EL efficiency. Rigidified triple ligand shells greatly reduce the nonradiative transition and thus increase the PLQY of Au NCs from 2.1 to 73.4%. Most importantly, this strategy significantly improves the compatibility between Au NCs and charge transport materials in EL-LED fabrication. As a result, the EL-LEDs reach a maximum brightness of 1104 cd/m2 and an external quantum efficiency of 5.1%, which is the highest recorded for any reported Au NC-based EL-LEDs.
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Affiliation(s)
- Ye Tian
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Weijia Zheng
- Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada
| | - Xiaoyu Zhang
- School of Materials Science & Engineering, Jilin University, Changchun 130012, P. R. China
| | - Yinghui Wang
- College of Physics, Jilin University, Changchun 130012, P. R. China
| | - Yanwei Xiao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Dong Yao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
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10
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Devi A, Seksaria H, Bain D, Kolay S, Rashi, De Sarkar A, Patra A. Experimental and computational insights into luminescence in atomically precise bimetallic Au 6-nCu n(MPA) 5 ( n = 0-2) clusters. Phys Chem Chem Phys 2023; 25:9513-9521. [PMID: 36939011 DOI: 10.1039/d2cp05120f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Bimetallic nanoclusters (NCs) have emerged as a new class of luminescent materials for potential applications in sensing, bio-imaging, and light-emitting diodes (LEDs). Here, we have synthesized gold-copper bimetallic nanoclusters (AuCu NCs) using a one-step co-reduction method and tuned the emission wavelength from 520 nm to 620 nm by changing the [Cu2+]/[Au3+] molar ratio. The quantum yield (QY) increases from 6% to 13% upon incorporation of the Cu atom in the Au NCs. MALDI-TOF mass spectrometric analysis reveals that the composition of the Au NCs is Au6(MPA)5, and the bimetallic nanocluster is Au4Cu2(MPA)5, where 3-mercaptopropionic acid (MPA) is used as the capping ligand. Furthermore, we investigated the optimized structures of the as-synthesized NCs using density functional theory (DFT) along with analysis of the preferable adsorption sites using Fukui functions. We report the HOMO-LUMO gap, which is consistent with the experimentally observed red shift in the UV-Vis absorption features of the Au NCs upon copper doping. XPS studies suggest the formation of intermixing of states between the 5d orbitals of Au and the 3d orbitals of Cu in the AuCu NCs after incorporating Cu atoms into the Au NCs, which is corroborated by the DFT calculations on electronic charge transfer from the Cu to the Au atom in the NCs. The coupling between Au(I) and Cu(I) facilitates the formation of a low-lying mixed Au(I)-Cu(I) energy state. This study elaborates on the impact of Cu doping on the excited-state relaxation dynamics of AuCu NCs.
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Affiliation(s)
- Aarti Devi
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Harshita Seksaria
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Dipankar Bain
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Rashi
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Abir De Sarkar
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Amitava Patra
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India. .,School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
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11
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Chandra A, Bhoge PR, K R R, Shanthamurthy CD, Kikkeri R. Fluorescent glyco-gold nanocluster induced EGFR mediated targeting of cancer cells. Chem Commun (Camb) 2023; 59:1213-1216. [PMID: 36629520 DOI: 10.1039/d2cc06227e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A lot of attention has been focused on the functionalization of carbohydrate ligands on specific sizes and shapes of gold nanoparticles (AuNPs), where ultrasmall fluorescent AuNPs have not been well explored for direct imaging. Herein, we have engineered fluorescent gold nanoclusters with sulfated oligo-iduronic acid ligands (I34), which strongly bind to the HB-EGF receptor over FGF2, and regulate EGF receptor-mediated cancer cell homing in both two- and three-dimensional (2D and 3D) cell culture systems. These results offer a new practical and direct imaging tool for carbohydrate research.
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Affiliation(s)
- Ankita Chandra
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Preeti Ravindra Bhoge
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Remya K R
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Chethan D Shanthamurthy
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
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12
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Bai HJ, Qi DY, Li HW, Wu Y. Assembly-Induced Emission Enhancement in Glutathione-Capped Bimetallic Gold and Copper Nanoclusters by Al 3+ Ions and Further Application in Myricetin Determination. Molecules 2023; 28:758. [PMID: 36677816 PMCID: PMC9864343 DOI: 10.3390/molecules28020758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/31/2022] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
A significant emission enhancement (>100-fold) of glutathione-capped bimetallic gold and copper nanoclusters (AuCuNC@GSH) was achieved by assembling with Al3+ ions and by assembly-induced emission enhancement (AIEE). Further chelation of myricetin to Al3+ resulted in emission quenching of AuCuNC-Al3+, which was applied to specifically detect myricetin. Two linear responses were shown in the range of 0−1.5 μM and 1.5−50 μM, separately, leading to a low limit of detection at 8.7 nM. The method was successfully and accurately applied to myricetin determination in grape juice, which showed good application for real samples. Finally, the in-depth mechanism revealed that both the chelation of myricetin and Al3+ and the inner filter effect (IFE) between myricetin-Al3+ and AuCuNC-Al3+ greatly contributed to the quenching response of myricetin. Therefore, the present study provides an easy way to improve the fluorescence property of metal nanoclusters. Additionally, it supplies a cost-effective and easily performed approach to detect myricetin with high selectivity and sensitivity.
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Affiliation(s)
- Hao-Jie Bai
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
| | - De-Yan Qi
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
| | - Hong-Wei Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
| | - Yuqing Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 2 Liutiao Road, Changchun 130023, China
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Pang Z, Yan W, Yang J, Li Q, Guo Y, Zhou D, Jiang X. Multifunctional Gold Nanoclusters for Effective Targeting, Near-Infrared Fluorescence Imaging, Diagnosis, and Treatment of Cancer Lymphatic Metastasis. ACS NANO 2022; 16:16019-16037. [PMID: 36130729 PMCID: PMC9620408 DOI: 10.1021/acsnano.2c03752] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Developing effective lymph-node (LN) targeting and imaging probes is crucial for the early detection and diagnosis of tumor metastasis to improve patient survival. Most current clinical LN imaging probes are based on small organic dyes (e.g., indocyanine green) or radioactive 99mTc-complexes, which often suffer from limitations, such as rapid photobleaching, poor signal contrast, and potential biosafety issues. Moreover, these probes cannot easily incorporate therapeutic functions to realize beneficial theranostics without affecting their LN-targeting ability. Herein, we have developed dual-ligand-/multiligand-capped gold nanoclusters (GNCs) for specific targeting, near-infrared (NIR) fluorescence imaging, diagnosis, and treatment of LN cancer metastasis in in vivo mouse models. By optimizing the surface ligand coating, we have prepared Au25(SR1)n(SR2)18-n (where SR1 and SR2 are different functional thiol ligands)-type GNCs, which display highly effective LN targeting, excellent stability and biocompatibility, and optimal body-retention time. Moreover, they can provide continuous NIR fluorescence imaging of LNs for >3 h from a single dose, making them well-suited for fluorescence-guided surgery. Importantly, we have further incorporated methotrexate, a chemotherapeutic drug, into the GNCs without affecting their LN-targeting ability. Consequently, they can significantly improve the efficiency of methotrexate delivery to target LNs, achieving excellent therapeutic efficacy with up to 4-fold lower hepatotoxicity. Thus, the GNCs are highly effective and safe theranostic nanomedicines against cancer lymphatic metastasis.
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Affiliation(s)
- Zeyang Pang
- Guangdong
Provincial Key Laboratory of Advanced Biomaterials and Shenzhen Key
Laboratory of Smart Healthcare Engineering, Department of Biomedical
Engineering, Southern University of Science
and Technology, No 1088, Xueyuan Rd, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Weixiao Yan
- Guangdong
Provincial Key Laboratory of Advanced Biomaterials and Shenzhen Key
Laboratory of Smart Healthcare Engineering, Department of Biomedical
Engineering, Southern University of Science
and Technology, No 1088, Xueyuan Rd, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Jie Yang
- Guangdong
Provincial Key Laboratory of Advanced Biomaterials and Shenzhen Key
Laboratory of Smart Healthcare Engineering, Department of Biomedical
Engineering, Southern University of Science
and Technology, No 1088, Xueyuan Rd, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Qizhen Li
- Guangdong
Provincial Key Laboratory of Advanced Biomaterials and Shenzhen Key
Laboratory of Smart Healthcare Engineering, Department of Biomedical
Engineering, Southern University of Science
and Technology, No 1088, Xueyuan Rd, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
| | - Yuan Guo
- School
of Food Science and Nutrition and Astbury Centre for Structural Molecular
Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Dejian Zhou
- School
of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Xingyu Jiang
- Guangdong
Provincial Key Laboratory of Advanced Biomaterials and Shenzhen Key
Laboratory of Smart Healthcare Engineering, Department of Biomedical
Engineering, Southern University of Science
and Technology, No 1088, Xueyuan Rd, Nanshan District, Shenzhen, Guangdong 518055, P. R. China
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14
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Luo Y, Zhou X, Liu C, Lu R, Jia M, Li P, Zhang S. Scavenging ROS and inflammation produced during treatment to enhance the wound repair efficacy of photothermal injectable hydrogel. BIOMATERIALS ADVANCES 2022; 141:213096. [PMID: 36067644 DOI: 10.1016/j.bioadv.2022.213096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 07/30/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Injectable hydrogels with near infrared (NIR) photothermal ability show attractive application prospects in the treatment of wound infection and promoting skin defect repair. Nevertheless, excess reactive oxygen species (ROS) and inflammatory responses caused by bacterial infection and photothermal therapy (PTT) would delay tissue regeneration and wound healing. In this study, a novel NIR photothermal injectable hydrogel with anti-oxidation and anti-inflammation by incorporating α-lipoic acid modified palladium nanoparticles into calcium ions crosslinked sodium alginate hydrogel was developed. The resulting hydrogel facilitated to fill perfectly various irregular wounds, and could convert NIR light into local high-heat to kill >80 % of Escherichia coli and Staphylococcus aureus. Remarkably, the hydrogel exhibited excellent anti-oxidant and anti-inflammatory activity, which could scavenge >60 % of ROS in cells and decrease the relative expression level of tumor necrosis factor-alpha and interleukin-1β genes by 52.9 % and 53.3 % respectively. It was found that the NIR photothermal injectable hydrogel with anti-oxidation and anti-inflammation could effectively reduce ROS and inflammation caused by bacterial infection and PPT. Additionally, it could also enhance wound repair efficiency. The hydrogel is expected to be a potential wound dressing for the treatment of clinical skin defects.
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Affiliation(s)
- Yadong Luo
- College of Biomedical Engineering and National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Xiaodong Zhou
- College of Biomedical Engineering and National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Caikun Liu
- College of Biomedical Engineering and National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Ruilin Lu
- College of Biomedical Engineering and National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Mengqi Jia
- College of Biomedical Engineering and National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Pengfei Li
- College of Biomedical Engineering and National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Shiyong Zhang
- College of Biomedical Engineering and National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
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15
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Zhu H, Zhou Y, Wang Y, Xu S, James TD, Wang L. Stepwise-Enhanced Tumor Targeting of Near-Infrared Emissive Au Nanoclusters with High Quantum Yields and Long-Term Stability. Anal Chem 2022; 94:13189-13196. [PMID: 36106565 PMCID: PMC9591319 DOI: 10.1021/acs.analchem.2c02717] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
We developed an in situ coordination-driven
spatially
confined strategy for preparing near-infrared emissive gold nanoclusters
encapsulated by fluorinated polymers (AuNCs@PF, λmax = 810 nm) with good stability and high quantum yields (27.7%), far
higher than those previously reported for NIR AuNCs (>800 nm).
Based
on the stepwise enhancements including long blood circulation-induced
passive tumor targeting, fluoro-enhanced tumor permeation, and tumor
microenvironment (weak acid)-induced aggregation retention in cells,
these AuNCs demonstrated bright and stable NIR fluorescence imaging
ability in tumors. Additionally, the AuNCs@PF were capable of fluorine
magnetic resonance imaging and computed tomographic imaging. The multimodal
imaging of tumor-bearing mice clearly implied the potential of AuNCs@PF
in biomedical fields.
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Affiliation(s)
- Hui Zhu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yue Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yu Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Suying Xu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Tony D. James
- Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Leyu Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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16
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Ma H, Yi M, Messinger M, Wang G. Kinetics-Based Ratiometric Electrochemiluminescence Analysis for Signal Specificity: Case Studies of Piperazine Drug Discrimination with Au Nanoclusters. Anal Chem 2022; 94:11760-11766. [PMID: 35973062 DOI: 10.1021/acs.analchem.2c01489] [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
A multi-parameter calibration and analysis strategy has been developed based on the kinetics of charge transfer reactions. Absolute and ratiometric electrochemiluminescence signals are elucidated from single measurements for the detection of hydroxyzine and cetirizine as prototype drugs which greatly enhance the near-infrared electrochemiluminescence from atomically precise Au22 nanoclusters stabilized with lipoic acid ligands on ITO electrodes. The signal-on sensing mechanism eliminates the need for recognition elements and highly excess co-reactants in conventional electrochemiluminescence practice. The rates of sequential charge transfer reactions render specificity in electrochemiluminescence intensity and kinetics toward the target molecular/electronic structures and are conveniently controlled/optimized by operation parameters. Signal kinetic profiles, in stark contrast to steady-state or single-point recordings, not only improve the signal/noise ratio but also offer greater resolving power to differentiate analogue species and nonspecific interference. The fundamental kinetics-based ratiometric concept/strategy is not limited to a specific luminophore or a co-reactant and is thus generalizable. The case studies successfully detect and discriminate drug compounds at sub-nanomolar physiological ranges, with efficacy validated using synthetic urine toward point-of-care applications in therapeutic/abuse drug monitoring.
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Affiliation(s)
- Hedi Ma
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Meijun Yi
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Michael Messinger
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Gangli Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
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17
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Lin Y, Yang C, Huang Y, Chang H. Fluorescent carbon dots and noble metal nanoclusters for sensing applications: Minireview. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yu‐Feng Lin
- Department of Chemistry National Taiwan University Taipei Taiwan
| | - Cheng‐Ruei Yang
- Department of Chemistry National Taiwan University Taipei Taiwan
| | - Yu‐Fen Huang
- Institute of Analytical and Environmental Sciences College of Nuclear Science, National Tsing Hua University Hsinchu Taiwan
- Department of Biomedical Engineering and Environmental Sciences National Tsing Hua University Hsinchu Taiwan
- School of Pharmacy College of Pharmacy, Kaohsiung Medical University Kaohsiung Taiwan
| | - Huan‐Tsung Chang
- Department of Chemistry National Taiwan University Taipei Taiwan
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18
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Kasthuri J, Sivasamy A, Rajendiran N. Green Chemical Synthesis of N-Cholyl-L-Cysteine Encapsulated Gold Nanoclusters for Fluorometric Detection of Mercury Ions. J Fluoresc 2022; 32:1347-1356. [PMID: 35366164 DOI: 10.1007/s10895-022-02935-0] [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: 10/21/2021] [Accepted: 03/24/2022] [Indexed: 11/26/2022]
Abstract
Herein we report a simple, single-step, cost-effective, environmentally friendly, and biocompatible approach using sodium salt of N-cholyl-L-cysteine (NaCysC) capped gold nanoclusters (AuNCs) with green emission properties at above the CMC in aqueous medium under UV-light irradiation. The primary and secondary CMC of NaCysC was found to be 4.6 and 10.7 mM respectively using pyrene as fluorescent probe. The synthesized AuNCs exhibit strong emission maxima at 520 nm upon excitation at 375 nm with a large Stokes shift of 145 nm. The surface functionality and morphology of NCs are studied by fourier transform infrared spectroscopy, dymanic light scattering studies and transmission electron microscopy. The formation of AuNCs was completed within 5 h and exhibit high stability for more than 6 months. The NaCysC templated AuNCs selectively quenches the Hg2+ ions with higher sensitivity in aqueous solution over the other metal ions. The fluorescence analysis of Hg2+ showed a wide linear range from 15 to 120 µM and a detection limit was found to be 15 nM.
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Affiliation(s)
- Jayapalan Kasthuri
- Department of Chemistry, Quaid-E-Millath Government College for Women (Autonomous), Chennai, Tamil Nadu, 600 002, India.
| | - Arumugam Sivasamy
- Catalysis Science Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu, 600020, India
| | - Nagappan Rajendiran
- Department of Polymer Science, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600025, India
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19
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Valdeperez D, Wutke N, Ackermann LM, Parak WJ, Klapper M, Pelaz B. Colloidal stability of polymer coated zwitterionic Au nanoparticles in biological media. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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20
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Pang Z, Li Q, Jia Y, Yan W, Qi J, Guo Y, Hu F, Zhou D, Jiang X. Controlling the pyridinium-zwitterionic ligand ratio on atomically precise gold nanoclusters allowing for eradicating Gram-positive drug-resistant bacteria and retaining biocompatibility. Chem Sci 2021; 12:14871-14882. [PMID: 34820103 PMCID: PMC8597861 DOI: 10.1039/d1sc03056f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/24/2021] [Indexed: 01/09/2023] Open
Abstract
Infections caused by multidrug-resistant (MDR) bacteria are an increasing global healthcare concern. In this study, we developed a dual-ligand-functionalised Au25(SR1) x (SR2)18-x -type gold nanocluster and determined its antibacterial activity against MDR bacterial strains. The pyridinium ligand (SR1) provided bactericidal potency and the zwitterionic ligand (SR2) enhanced the stability and biocompatibility. By optimising the ligand ratio, our gold nanocluster could effectively kill MDR Gram-positive bacteria via multiple antibacterial actions, including inducing bacterial aggregation, disrupting bacterial membrane integrity and potential, and generating reactive oxygen species. Moreover, combining the optimised gold nanocluster with common antibiotics could significantly enhance the antibacterial activity against MDR bacteria both in in vitro and animal models of skin infections. Furthermore, the fluorescence of the gold nanocluster at the second near-infrared (NIR-II) biological window allowed for the monitoring of its biodistribution and body clearance, which confirmed that the gold nanoclusters had good renal clearance and biocompatibility. This study provides a new strategy to combat the MDR challenge using multifunctional gold nanomaterials.
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Affiliation(s)
- Zeyang Pang
- Department of Biomedical Engineering, Southern University of Science and Technology No 1088, Xueyuan Rd, Nanshan District Shenzhen Guangdong 518055 P. R. China
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Qizhen Li
- Department of Biomedical Engineering, Southern University of Science and Technology No 1088, Xueyuan Rd, Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Yuexiao Jia
- Department of Biomedical Engineering, Southern University of Science and Technology No 1088, Xueyuan Rd, Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Weixiao Yan
- Department of Biomedical Engineering, Southern University of Science and Technology No 1088, Xueyuan Rd, Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Jie Qi
- Department of Biomedical Engineering, Southern University of Science and Technology No 1088, Xueyuan Rd, Nanshan District Shenzhen Guangdong 518055 P. R. China
| | - Yuan Guo
- School of Food Science and Nutrition and Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Fupin Hu
- Institute of Antibiotics, Huashan Hospital, Fudan University Shanghai 200040 P. R. China
| | - Dejian Zhou
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds Leeds LS2 9JT UK
| | - Xingyu Jiang
- Department of Biomedical Engineering, Southern University of Science and Technology No 1088, Xueyuan Rd, Nanshan District Shenzhen Guangdong 518055 P. R. China
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21
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Cifuentes-Rius A, Deepagan VG, Xie J, Voelcker NH. Bright Future of Gold Nanoclusters in Theranostics. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49581-49588. [PMID: 34636533 DOI: 10.1021/acsami.1c14275] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Quantum-sized gold nanoclusters (AuNCs) are emerging as theranostic agents-those that combine diagnostics and therapeutic properties-given their ultrasmall size <3 nm, which makes them behave more like a molecule rather than a nanoparticle. This molecule-like behavior endows AuNCs with interesting properties including photoluminescence, catalytic activity, and paramagnetism-all without the presence of any toxic heavy metal. But despite these fundamental advances, scalable synthetic approaches to produce high-quality AuNCs with well-controlled and programmable properties for biological applications as well as methods to determine their structure-property relationships are not widely available. In this Perspective, we will discuss what is known so far about AuNCs as well as how to move forward to propel AuNCs as a theranostic agent of choice for many biomedical applications.
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Affiliation(s)
- Anna Cifuentes-Rius
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Veerasikku Gopal Deepagan
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
| | - Nicolas H Voelcker
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, 151 Wellington Road, Clayton, Victoria 3168, Australia
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22
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Chen Y, Schultz AJ, Errington JR. Coupled Monte Carlo and Molecular Dynamics Simulations on Interfacial Properties of Antifouling Polymer Membranes. J Phys Chem B 2021; 125:8193-8204. [PMID: 34259529 DOI: 10.1021/acs.jpcb.1c01966] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We use molecular simulation to study the wetting behavior of antifouling polymer-tethered membranes. We obtain the interfacial properties (e.g., contact angle) of water at various temperatures for five polymer membranes, including a base polysulfone (PSF) membrane and four other PSF membranes grafted with antifouling polymers (two poly(ethylene glycol) (PEG) tethers and two zwitterionic tethers). We implement a coupled Monte Carlo (MC)/molecular dynamics (MD) approach to determine the interface potentials of water on the membrane surfaces in an efficient manner. Within this method, short MC and MD simulations are performed in cycles to collect the surface excess free energy of a thin water film on polymer membrane surfaces. Simulation results show that the grafting of zwitterionic tethers provides a more significant enhancement in the hydrophilicity of the PSF membrane than that of the PEG tethers. Water completely wets the surface of zwitterionic polymer membranes.
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Affiliation(s)
- Yiqi Chen
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York 14260-4200, United States
| | - Andrew J Schultz
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York 14260-4200, United States
| | - Jeffrey R Errington
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York 14260-4200, United States
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23
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24
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Pramanik G, Kvakova K, Thottappali MA, Rais D, Pfleger J, Greben M, El-Zoka A, Bals S, Dracinsky M, Valenta J, Cigler P. Inverse heavy-atom effect in near infrared photoluminescent gold nanoclusters. NANOSCALE 2021; 13:10462-10467. [PMID: 34076660 DOI: 10.1039/d1nr02440j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fluorophores functionalized with heavy elements show enhanced intersystem crossing due to increased spin-orbit coupling, which in turn shortens the fluorescence decay lifetime (τPL). This phenomenon is known as the heavy-atom effect (HAE). Here, we report the observation of increased τPL upon functionalisation of near-infrared photoluminescent gold nanoclusters with iodine. The heavy atom-mediated increase in τPL is in striking contrast with the HAE and referred to as inverse HAE. Femtosecond and nanosecond transient absorption spectroscopy revealed overcompensation of a slight decrease in lifetime of the transition associated with the Au core (ps) by a large increase in the long-lived triplet state lifetime associated with the Au shell, which contributed to the observed inverse HAE. This unique observation of inverse HAE in gold nanoclusters provides the means to enhance the triplet excited state lifetime.
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Affiliation(s)
- Goutam Pramanik
- Institute of Organic Chemistry and Biochemistry of the CAS, Flemingovo nam. 2, 166 10 Prague 6, Czechia.
| | - Klaudia Kvakova
- Institute of Organic Chemistry and Biochemistry of the CAS, Flemingovo nam. 2, 166 10 Prague 6, Czechia.
| | - Muhammed Arshad Thottappali
- Institute of Macromolecular Chemistry of the CAS, Heyrovsky Sq. 2, 162 06 Prague 6, Czechia and Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Prague 2, Czechia.
| | - David Rais
- Institute of Macromolecular Chemistry of the CAS, Heyrovsky Sq. 2, 162 06 Prague 6, Czechia
| | - Jiri Pfleger
- Institute of Macromolecular Chemistry of the CAS, Heyrovsky Sq. 2, 162 06 Prague 6, Czechia
| | - Michael Greben
- Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Prague 2, Czechia.
| | - Ayman El-Zoka
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Sara Bals
- EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Martin Dracinsky
- Institute of Organic Chemistry and Biochemistry of the CAS, Flemingovo nam. 2, 166 10 Prague 6, Czechia.
| | - Jan Valenta
- Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Prague 2, Czechia.
| | - Petr Cigler
- Institute of Organic Chemistry and Biochemistry of the CAS, Flemingovo nam. 2, 166 10 Prague 6, Czechia.
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25
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26
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Tang L, Zeng X, Zhou H, Gui C, Luo Q, Zhou W, Wu J, Li Q, Li Y, Xiao Y. Theranostic Gold Nanoclusters for NIR-II Imaging and Photodynamic Therapy. Chem Res Chin Univ 2021. [DOI: 10.1007/s40242-021-1117-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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27
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Liu Y, Wang S, Wang Z, Yao Q, Fang S, Zhou X, Yuan X, Xie J. The in situ synthesis of silver nanoclusters inside a bacterial cellulose hydrogel for antibacterial applications. J Mater Chem B 2021; 8:4846-4850. [PMID: 32186318 DOI: 10.1039/d0tb00073f] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An antibacterial Ag nanocluster-based hydrogel (Ag NC@BC) is prepared by the in situ formation of Ag NCs on the nanofibers of a natural bacterial-cellulose (BC) hydrogel. The Ag NC@BC exhibits superior, broad-spectrum antimicrobial performance against both Gram-positive and Gram-negative bacteria, and has a long-acting bactericidal efficacy compared to pristine Ag NCs due to its controlled-release feature for Ag species. Moreover, this fabricated hydrogel also possesses excellent biocompatibility. All of these advantages of Ag NC@BC endow it with great potentials in battling bacterial infections.
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Affiliation(s)
- Yong Liu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
| | - Shanshan Wang
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
| | - Ziping Wang
- Weifang University of Science and Technology, Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang 262700, China
| | - Qiaofeng Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Shasha Fang
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xianfeng Zhou
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xun Yuan
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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28
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Lin Y, Li C, Liu A, Zhen X, Gao J, Wu W, Cai W, Jiang X. Responsive hyaluronic acid-gold cluster hybrid nanogel theranostic systems. Biomater Sci 2021; 9:1363-1373. [PMID: 33367388 PMCID: PMC7934158 DOI: 10.1039/d0bm01815e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Tumor microenvironment responsive and self-monitored multimodal synergistic theranostic strategies can significantly improve therapeutic efficacy by overcoming biological barriers. Herein, we report a type of smart fluorescent hyaluronic acid nanogel that can respond to the reducing microenvironment and activate tumor targeting with light-traceable monitoring in cancer therapy. First, the derivative of hyaluronic acid (HA) with a vinyl group and cystamine bisacrylamide were used to synthesize bioreducible HA based nanogels via copolymerization in aqueous medium. Then, multifunctional mHA-gold cluster (mHA-GC) hybrid nanogels were successfully prepared by the in situ reduction of gold salt in the HA nanogels. The HA matrix turns the nanogels into a capsule for effective drug loading with excellent colloidal stability. Interestingly, the reducing tumor microenvironment dramatically enhanced the fluorescence signal of gold clusters in the hybrid nanogels. The highly selective cancer cell uptake and efficient intratumoral accumulation of the hybrid nanogels were demonstrated by fluorescence tracking of these nanogels. Responsive disassembly of the hybrid nanogels and drug release were triggered by excess glutathione presence in cancer cells. Moreover, in vivo and in vitro tumor suppression assays revealed that the doxorubicin-loaded hybrid nanogels exhibited significantly superior tumor cell inhibition abilities compared to free DOX. Overall, the mHA-GC hybrid nanogels emerge as a promising theranostic nanoplatform for the targeted delivery and controlled release of antitumor drugs with light-traceable monitoring in cancer treatment.
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Affiliation(s)
- Ying Lin
- Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
| | - Chen Li
- MOE Key Laboratory of High Performance Polymer Materials and Technology, and Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China.
| | - An Liu
- Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
| | - Xu Zhen
- MOE Key Laboratory of High Performance Polymer Materials and Technology, and Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China.
| | - Jiangang Gao
- Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
| | - Wei Wu
- MOE Key Laboratory of High Performance Polymer Materials and Technology, and Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China.
| | - Weibo Cai
- Department of Radiology, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Xiqun Jiang
- MOE Key Laboratory of High Performance Polymer Materials and Technology, and Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China.
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29
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Deepagan VG, Leiske MN, Fletcher NL, Rudd D, Tieu T, Kirkwood N, Thurecht KJ, Kempe K, Voelcker NH, Cifuentes-Rius A. Engineering Fluorescent Gold Nanoclusters Using Xanthate-Functionalized Hydrophilic Polymers: Toward Enhanced Monodispersity and Stability. NANO LETTERS 2021; 21:476-484. [PMID: 33350838 DOI: 10.1021/acs.nanolett.0c03930] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We introduce xanthate-functionalized poly(cyclic imino ethers)s (PCIEs), specifically poly(2-ethyl-2-oxazoline) and poly(2-ethyl-2-oxazine) given their stealth characteristics, as an attractive alternative to conventional thiol-based ligands for the synthesis of highly monodisperse and fluorescent gold nanoclusters (AuNCs). The xanthate in the PCIEs interacts with Au ions, acting as a well-controlled template for the direct formation of PCIE-AuNCs. This method yields red-emitting AuNCs with a narrow emission peak (λem = 645 nm), good quantum yield (4.3-4.8%), long fluorescence decay time (∼722-844 ns), and unprecedented product yield (>98%). The PCIE-AuNCs exhibit long-term colloidal stability, biocompatibility, and antifouling properties, enabling a prolonged blood circulation, lower nonspecific accumulation in major organs, and better renal clearance when compared with AuNCs without polymer coating. The advances made here in the synthesis of metal nanoclusters using xanthate-functionalized PCIEs could propel the production of highly monodisperse, biocompatible, and renally clearable nanoprobes in large-scale for different theranostic applications.
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Affiliation(s)
- Veerasikku Gopal Deepagan
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
| | - Meike N Leiske
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Nicholas L Fletcher
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - David Rudd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
| | - Terence Tieu
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Bayview Avenue, Clayton, Victoria 3168, Australia
| | - Nicholas Kirkwood
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kristofer J Thurecht
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Kristian Kempe
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3168, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Bayview Avenue, Clayton, Victoria 3168, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3168, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, 151 Wellington Road, Clayton, Victoria 3168, Australia
| | - Anna Cifuentes-Rius
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
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30
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Roberts P, Perry JK, Gupta RK, Karna SP, Frechette J. Confinement-Enhanced Luminescence in Protein-Gold Nanoclusters. J Phys Chem Lett 2020; 11:10278-10282. [PMID: 33216558 DOI: 10.1021/acs.jpclett.0c03054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Confinement has profound effects on protein functions. Nanoscale probes for confinement or excluded volume interactions could help us understand how these interactions influence protein functions. This work reports on the increased luminescence of BSA-gold nanoclusters when confined. Confinement of the BSA-gold nanoclusters occurred within reverse micelles (RMs), where the size of the RMs determined the degree of confinement. The confinement-enhanced luminescence is reversible, i.e., the emission returns to its original value following cyclic changes in RM size. Circular dichroism measurements show an increase in alpha-helical character of the BSA-stabilized nanoclusters with confinement, which could provide a mechanism for the increase in luminescence. The alpha-helical character of the native proteins also increases with confinement, suggesting that the protein-nanocluster might sense confinement in an analogous fashion as the proteins. When the RMs approach the size of the protein, the intensity becomes independent of alpha-helical character, suggesting a different mechanism for the luminescence increase.
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Affiliation(s)
| | - Jeneh Karima Perry
- CCDC Army Research Laboratory, Weapons and Material Research Directorate, 6300 Rodman Road, Aberdeen, Proving Ground, Maryland 21005, United States
| | - Raj K Gupta
- DoD Blast Injury Research Coordinating Office, U.S. Army Medical Research and Development Command, 504 Scott Street, Fort Detrick, Maryland 21702, United States
| | - Shashi P Karna
- CCDC Army Research Laboratory, Weapons and Material Research Directorate, 6300 Rodman Road, Aberdeen, Proving Ground, Maryland 21005, United States
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31
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Schwartz AB, Kapur A, Huang Z, Anangi R, Spear JM, Stagg S, Fardone E, Dekan Z, Rosenberg JT, Grant SC, King GF, Mattoussi H, Fadool DA. Olfactory bulb-targeted quantum dot (QD) bioconjugate and Kv1.3 blocking peptide improve metabolic health in obese male mice. J Neurochem 2020; 157:1876-1896. [PMID: 32978815 DOI: 10.1111/jnc.15200] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 01/10/2023]
Abstract
The olfactory system is a driver of feeding behavior, whereby olfactory acuity is modulated by the metabolic state of the individual. The excitability of the major output neurons of the olfactory bulb (OB) can be modulated through targeting a voltage-dependent potassium channel, Kv1.3, which responds to changes in metabolic factors such as insulin, glucose, and glucagon-like peptide-1. Because gene-targeted deletion or inhibition of Kv1.3 in the periphery has been found to increase energy metabolism and decrease body weight, we hypothesized that inhibition of Kv1.3 selectively in the OB could enhance excitability of the output neurons to evoke changes in energy homeostasis. We thereby employed metal-histidine coordination to self-assemble the Kv1.3 inhibitor margatoxin (MgTx) to fluorescent quantum dots (QDMgTx) as a means to label cells in vivo and test changes in neuronal excitability and metabolism when delivered to the OB. Using patch-clamp electrophysiology to measure Kv1.3 properties in heterologously expressed cells and native mitral cells in OB slices, we found that QDMgTx had a fast rate of inhibition, but with a reduced IC50, and increased action potential firing frequency. QDMgTx was capable of labeling cloned Kv1.3 channels but was not visible when delivered to native Kv1.3 in the OB. Diet-induced obese mice were observed to reduce body weight and clear glucose more quickly following osmotic mini-pump delivery of QDMgTx/MgTx to the OB, and following MgTx delivery, they increased the use of fats as fuels (reduced respiratory exchange ratio). These results suggest that enhanced excitability of bulbar output neurons can drive metabolic responses.
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Affiliation(s)
- Austin B Schwartz
- Institute of Molecular Biophysics, The Florida State University, Tallahassee, FL, USA
| | - Anshika Kapur
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, FL, USA
| | - Zhenbo Huang
- Program in Neuroscience, The Florida State University, Tallahassee, FL, USA.,Department of Biological Science, The Florida State University, Tallahassee, FL, USA
| | - Raveendra Anangi
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Qld, Australia
| | - John M Spear
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, FL, USA.,Institute for Molecular Bioscience, The University of Queensland, Brisbane, Qld, Australia
| | - Scott Stagg
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, FL, USA.,Institute for Molecular Bioscience, The University of Queensland, Brisbane, Qld, Australia
| | - Erminia Fardone
- Program in Neuroscience, The Florida State University, Tallahassee, FL, USA
| | - Zolan Dekan
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Qld, Australia
| | - Jens T Rosenberg
- National High Field Magnetic Laboratory, The Florida State University, Tallahassee, FL, USA
| | - Samuel C Grant
- National High Field Magnetic Laboratory, The Florida State University, Tallahassee, FL, USA.,Department of Chemical & Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Glenn F King
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Qld, Australia
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, FL, USA
| | - Debra Ann Fadool
- Institute of Molecular Biophysics, The Florida State University, Tallahassee, FL, USA.,Program in Neuroscience, The Florida State University, Tallahassee, FL, USA.,Department of Biological Science, The Florida State University, Tallahassee, FL, USA
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32
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Hou TY, Shao FY, Sun YT, Yang KS, Chang WH, Lin CAJ. From mono-PEGylation towards anti-nonspecific protein interaction: comparison of dihydrolipoic acid versus glutathione-capped fluorescent gold nanoclusters using gel electrophoresis. NANOSCALE 2020; 12:17786-17794. [PMID: 32820774 DOI: 10.1039/d0nr03359f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ultrafine fluorescent gold nanoclusters (AuNCs) have emerged as biocompatible nanoprobes for biomedical imaging in vivo, and the precision surface chemistry of AuNCs is the key for attaining their clinical application. Comparison of two promising candidates for future nanomedicine, i.e. dihydrolipoic acid- versus glutathione-capped AuNCs (AuNC@DHLA vs. AuNC@GSH), was conducted for the first time to clarify their polyethylene glycol-related bioconjugate chemistry (PEGylation) and protein interactions. Gel electrophoresis was performed to separate the number of AuNCs PEGylation, and the molecular weight of the PEG spacer dominated the resolution of the separation in the gel. We have engineered and isolated the mono-PEGylated AuNCs either from the indirect carbodiimide bioconjugate chemistry or the direct Au-S binding. One-pot synthesis showed great efficiency for isolating mono-PEGylated AuNC@GSH from the tailored controlled aggregation of Au(i)-thiolate complexes on in situ generated Au(0) cores. Post-PEGylation of AuNC@GSH was also feasible using monodendate thiol-terminated PEG, but bidendate ligands of AuNC@DHLA exhibited low PEGylated efficiency by Au-S binding. In addition, mono-PEGylated AuNC@GSH significantly enhanced the ability of anti-nonspecific protein adsorption, but mono-PEGylated AuNC@DHLA cannot avoid the nonspecific binding with serum albumin. In addition, specific nano-assembly involving mono-biotinylated AuNCs with streptavidin were also compared using gel electrophoresis. These results provide key insights into the selection, preparation and design of functional AuNCs as nanoprobes for versatile biomedical applications.
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Affiliation(s)
- Tzu-Yin Hou
- Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan (R.O.C.).
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33
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Haghighi FH, Binaymotlagh R, Mirahmadi-Zare SZ, Hadadzadeh H. Aptamer/magnetic nanoparticles decorated with fluorescent gold nanoclusters for selective detection and collection of human promyelocytic leukemia (HL-60) cells from a mixture. NANOTECHNOLOGY 2020; 31:025605. [PMID: 31557732 DOI: 10.1088/1361-6528/ab484a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the present work, a fluorescent gold nanoclusters (GNCs)/superparamagnetic (Fe3O4/GNCs) nanoprobe was prepared via a facile approach for the selective detection and imaging of human leukemica cancer cells (HL-60). (γ-Mercaptopropyl)trimethoxysilane (MPS) was used as a stabilizer to prepare functionalized GNCs. The prepared GNCs@MPS was then self-assembly decorated on the surface of Fe3O4@SiO2 nanoparticles followed by poly(ethylene glycol) dimethacrylate (PGD) addition at room temperature to form Fe3O4/GNCs nanoprobe. Surface functionalization of the Fe3O4/GNCs with the thiol-modified KH1C12 aptamer was done through thiol-en click reaction between PGD and the thiol group of the aptamer. An extensive characterization of the Fe3O4/GNCs revealed strong red fluorescence (λ em = 627 nm), T 2-based contrast agent for MRI and excellent colloidal and photo stability in buffer medium. So, the aptamer-functionalized Fe3O4/GNCs nanoprobe (Fe3O4/GNCs/Aptamer) is capable to uptake and dual-image HL-60 cancer cells from a mixture. Furthermore, the MRI signal intensity of the pictures decreased linearly with an increase in the concentrations of the nanoprobe. It is also enable to detect cancer cells from a range of concentrations 10 up to 200 cells μL-1. The fluorescent/magnetic characteristics of the nanoprobe are of great significance for MRI-based and fluorescence imaging and collection of HL-60 cancer cells which implies potential help for the development of early diagnosis of highly malignant human leukemia.
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Affiliation(s)
- Farid Hajareh Haghighi
- Department of Molecular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan 81651-31378, Iran. Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
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34
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Porret E, Le Guével X, Coll JL. Gold nanoclusters for biomedical applications: toward in vivo studies. J Mater Chem B 2020; 8:2216-2232. [DOI: 10.1039/c9tb02767j] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In parallel with the rapidly growing and widespread use of nanomedicine in the clinic, we are also witnessing the development of so-called theranostic agents that combine diagnostic and therapeutic properties.
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Affiliation(s)
- Estelle Porret
- Université Grenoble Alpes – INSERM U1209 – CNRS UMR 5309
- 38000 Grenoble
- France
| | - Xavier Le Guével
- Université Grenoble Alpes – INSERM U1209 – CNRS UMR 5309
- 38000 Grenoble
- France
| | - Jean-Luc Coll
- Université Grenoble Alpes – INSERM U1209 – CNRS UMR 5309
- 38000 Grenoble
- France
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35
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Gold nanoclusters enhanced electrochemiluminescence of g-C3N4 for protein kinase activity analysis and inhibition. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113706] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Perić M, Sanader Maršić Ž, Russier-Antoine I, Fakhouri H, Bertorelle F, Brevet PF, le Guével X, Antoine R, Bonačić-Koutecký V. Ligand shell size effects on one- and two-photon excitation fluorescence of zwitterion functionalized gold nanoclusters. Phys Chem Chem Phys 2019; 21:23916-23921. [PMID: 31657396 DOI: 10.1039/c9cp05262c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Gold nanoclusters (Au NCs) are an emerging class of luminescent nanomaterials but still suffer from moderate photoluminescence quantum yields. Recent efforts have focused on tailoring their emission properties. Introducing zwitterionic ligands to cap the metallic kernel is an efficient approach to enhance their one-photon excitation fluorescence intensity. In this work, we extend this concept to the nonlinear optical regime, i.e., two-photon excitation fluorescence. For a proper comparison between theory and experiment, both ligand and solvent effects should be considered. The effects of ligand shell size and of aqueous solvent on the optical properties of zwitterion functionalized gold nanoclusters have been studied by performing quantum mechanics/molecular mechanics (QM/MM) simulations.
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Affiliation(s)
- Martina Perić
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM) at Interdisciplinary Center for Advanced Sciences and Technology (ICAST), University of Split, Poljička cesta 35, 21000 Split, Croatia
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37
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Mishra D, Wang S, Jin Z, Xin Y, Lochner E, Mattoussi H. Highly fluorescent hybrid Au/Ag nanoclusters stabilized with poly(ethylene glycol)- and zwitterion-modified thiolate ligands. Phys Chem Chem Phys 2019; 21:21317-21328. [PMID: 31531429 DOI: 10.1039/c9cp03723c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We report a simple strategy to grow highly fluorescing, near-infrared-emitting nanoclusters (NCs) made of bimetallic Au/Ag cores, surface capped with a mixture of triphenylphosphine and various monothiol ligands. The ligands include short chain aliphatic monothiols, which yields hydrophobic NCs, and poly(ethylene glycol)- or zwitterion-appended monothiols, which yield NCs that are readily dispersible in buffer media. The reaction uses well-defined triphenylphosphine-protected Au11 clusters (as precursors) that are reacted with Ag(i)-thiolate complexes. The prepared materials are small (diameter <2 nm, as characterized by TEM) with emission peak at 730-760 nm and long lifetime (∼8-12 μs). The quantum yield measured for these materials in both hydrophobic and hydrophilic dispersions is ∼40%. High-magnification dark field STEM and X-ray photoelectron spectroscopy measurements show the presence of both metal atoms in the core, with measured binding energies that agree with reported values for nanocluster materials. The NIR emission combined with high quantum yield, small size, colloidal stability in buffer media and ease of surface functionalization afforded by the coating, make these materials suitable for investigating fundamental questions and potentially useful for biological sensing and imaging applications.
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Affiliation(s)
- Dinesh Mishra
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
| | - Sisi Wang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
| | - Zhicheng Jin
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
| | - Yan Xin
- National High Magnetic Field Laboratory, Florida State University, 1800 E. Paul Dirac Drive, Tallahassee, Florida 32310, USA
| | - Eric Lochner
- CMMP, Department of Physics, Florida State University, 77 Chieftan Way, Tallahassee, FL 32306, USA
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
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38
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Zuber G, Weiss E, Chiper M. Biocompatible gold nanoclusters: synthetic strategies and biomedical prospects. NANOTECHNOLOGY 2019; 30:352001. [PMID: 31071693 DOI: 10.1088/1361-6528/ab2088] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The latest advances concerning ultra-small gold nanoparticles (≤2 nm) commonly known as gold nanoclusters (AuNCs) are reviewed and discussed in the context of biological and biomedical applications (labeling, delivery, imaging and therapy). A great diversity of synthetic methods has been developed and optimized aiming to improve the chemical structures and physicochemical properties of the resulting AuNCs. The main synthetic approaches were surveyed with emphasis on methods leading to water-soluble AuNCs since aqueous solutions are the preferred media for biological applications. The most representative and recent experimental results are discussed in relationship to their potential for biomedical applications.
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Affiliation(s)
- Guy Zuber
- Molecular and Pharmaceutical Engineering of Biologics, CNRS-Université de Strasbourg UMR 7242, Boulevard Sebastien Brant, F-67412, Illkirch, France
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39
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Shi C, Xing Y, Patil A, Meng Z, Yu R, Lin N, Qiu W, Hu F, Liu XY. Primary and Secondary Mesoscopic Hybrid Materials of Au Nanoparticles@Silk Fibroin and Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30125-30136. [PMID: 31368691 DOI: 10.1021/acsami.9b07846] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work, we demonstrate the principle of mesoscopic construction of silk fibroin (SF) hybrid materials, which endows the materials with new performance. In implementing this strategy, mediating molecules, wool keratin (WK) molecules, were adopted to in-line synthesize Au nanoparticles (WK@AuNPs), which further create the stable linkage of AuNPs with SF nanofibril networks via templated β-crystallization. Fourier transform infrared spectroscopy, X-ray diffraction, and atomic force microscopy demonstrate that the mesoscopic hybrid network structure of the hybrid materials is different from neat SF materials, which gives rise to various new performances, that is, long-stable fluorescence emission. As the fluorescence emission can be characteristically annealed by Cu ions, therefore be adopted as the highly selective ion probes. Moreover, as WK@AuNPs are homogeneously connected to SF nanofibril networks, the carbonization of the materials leads to secondary hybrid materials of carbon-Au, where nano-sized Au particles are well distributed in carbonized mesoscopic conductive carbon networks. Such hybrid materials of carbon-Au can be further fabricated into electrochemical (i.e., dopamine) sensors, which are demonstrated to have excellent sensing performance.
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Affiliation(s)
| | | | | | | | | | | | | | - Fan Hu
- Advanced Soft Matter Group, Department of Chemical Engineering , Delft University of Technology , Vander Maasweg 9 , Delft 2629 HZ , The Netherlands
| | - Xiang Yang Liu
- Department of Physics , National University of Singapore , 2 Science Drive 3 , 117542 , Singapore
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40
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Bhunia S, Seth SK, Gupta P, Karmakar M, Datta PK, Purkayastha P. Ultrafast Photoinduced Electron Transfer from Cyclometalated Rhodium and Iridium Complexes to Cyan Emitting Copper Nanoclusters: Footsteps toward Light Harvesting. ChemistrySelect 2019. [DOI: 10.1002/slct.201901369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Soumyadip Bhunia
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246, WB India
| | - Sourav Kanti Seth
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246, WB India
| | - Parna Gupta
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246, WB India
| | - Manobina Karmakar
- Department of PhysicsIndian Institute of Technology (IIT) Kharagpur Kharagpur 721302, WB India
| | - Prasanta Kumar Datta
- Department of PhysicsIndian Institute of Technology (IIT) Kharagpur Kharagpur 721302, WB India
| | - Pradipta Purkayastha
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246, WB India
- Centre for Advanced Functional Materials (CAFM)Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246, WB India
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41
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Bonačić-Koutecký V, Antoine R. Enhanced two-photon absorption of ligated silver and gold nanoclusters: theoretical and experimental assessments. NANOSCALE 2019; 11:12436-12448. [PMID: 31162509 DOI: 10.1039/c9nr01826c] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ligated silver and gold nanoclusters belonging to a non-scalable size regime with molecular-like discrete electronic states represent an emerging class of extremely interesting optical materials. Nonlinear optical (NLO) characteristics of such quantum clusters have revealed remarkable features. The two-photon absorption (TPA) cross section of ligated noble metal nanoclusters is several orders of magnitude larger than that of commercially-available dyes. Several such case studies on NLO properties of ligated silver and gold nanoclusters have been reported, making them promising candidates for various bio-imaging techniques such as multiphoton-excited fluorescence microscopy. However, the structure-property relationship is of great importance and needs to be properly addressed in order to design new nonlinear optical materials. Using small ligated silver nanoclusters as test systems, we illustrate how theoretical approaches together with experimental findings can contribute to the understanding of structure-property relationships that might ultimately guide nanocluster synthesis.
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Affiliation(s)
- Vlasta Bonačić-Koutecký
- Centre of excellence for Science and Technology-Integration of Mediterranean region (STIM) at the Interdisciplinary Centre for Advanced Sciences and Technology (ICAST), University of Split, Poljička cesta 35, HR-21000 Split, Republic of Croatia and Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany.
| | - Rodolphe Antoine
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, Lyon, France.
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42
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Nie J, Li Y, Han G, Qiu J. In vivo clearable inorganic nanophotonic materials: designs, materials and applications. NANOSCALE 2019; 11:12742-12754. [PMID: 31265038 DOI: 10.1039/c9nr02083g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inorganic nanophotonic materials (INPMs) are considered to be promising diagnosis and therapeutic agents for in vivo applications, such as bio-imaging, photoacoustic imaging and photothermal therapy. However, some concerns remain regarding these materials, such as undesirable long-term in vivo accumulation and associated toxicity. The inability to be degraded or cleared has decreased their likelihood to be used for potential clinical translations. To this end, new strategies have recently emerged to develop systematically clearable INPMs. Thus, this review provides an overview of these strategies used to expedite the clearance of INPMs, as well as the relevant design and functionalized modifications which are available to engineer the above materials. Along with their important applications in the fields of in vivo diagnoses and therapies, the challenges and outlook for in vivo clearable INPMs are also discussed. This attempt to explore in vivo clearable INPMs to inhibit their accumulation toxicity may represent the solution to a ubiquitous physiological issue, thus paving a new avenue for the development of novel optical nanomaterials for biophotonic applications.
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Affiliation(s)
- Jianmin Nie
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Yang Li
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China and Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA.
| | - Gang Han
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA.
| | - Jianrong Qiu
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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Heo GS, Zhao Y, Sultan D, Zhang X, Detering L, Luehmann HP, Zhang X, Li R, Choksi A, Sharp S, Levingston S, Reichert DE, Sun G, Razani B, Li S, Weilbaecher KN, Dehdashti F, Wooley KL, Liu Y. Assessment of Copper Nanoclusters for Accurate in Vivo Tumor Imaging and Potential for Translation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:19669-19678. [PMID: 31074257 PMCID: PMC7811435 DOI: 10.1021/acsami.8b22752] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Nanoparticles have been widely used for preclinical cancer imaging. However, their successful clinical translation is largely hampered by potential toxicity, unsatisfactory detection of malignancy at early stages, inaccurate diagnosis of tumor biomarkers, and histology for imaging-guided treatment. Herein, a targeted copper nanocluster (CuNC) is reported with high potential to address these challenges for future translation. Its ultrasmall structure enables efficient renal/bowel clearance, minimized off-target effects in nontargeted organs, and low nonspecific tumor retention. The pH-dependent in vivo dissolution of CuNCs affords minimal toxicity and potentially selective drug delivery to tumors. The intrinsic radiolabeling through the direct addition of 64Cu to CuNC (64Cu-CuNCs-FC131) synthesis offers high specific activity for sensitive and accurate detection of CXCR4 via FC131-directed targeting in novel triple negative breast cancer (TNBC) patient-derived xenograft mouse models and human TNBC tissues. In summary, this study not only reveals the potential of CXCR4-targeted 64Cu-CuNCs for TNBC imaging in clinical settings, but also provides a useful strategy to design and assess the translational potential of nanoparticles for cancer theranostics.
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Affiliation(s)
- Gyu Seong Heo
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - Yongfeng Zhao
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, United States
| | - Deborah Sultan
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - Xiaohui Zhang
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - Lisa Detering
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - Hannah P. Luehmann
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - Xiangyu Zhang
- Department of Medicine, Washington University, St. Louis, MO 63110, United States
| | - Richen Li
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, and Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, TX 77842, United States
| | - Ankur Choksi
- University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | | | - Sidney Levingston
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - David E. Reichert
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - Guorong Sun
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, and Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, TX 77842, United States
| | - Babak Razani
- Department of Medicine, Washington University, St. Louis, MO 63110, United States
| | - Shunqiang Li
- Department of Medicine, Washington University, St. Louis, MO 63110, United States
| | | | - Farrokh Dehdashti
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science & Engineering, and Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, TX 77842, United States
| | - Yongjian Liu
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO 63110, United States
- Corresponding Author:
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van der Meer SB, Loza K, Wey K, Heggen M, Beuck C, Bayer P, Epple M. Click Chemistry on the Surface of Ultrasmall Gold Nanoparticles (2 nm) for Covalent Ligand Attachment Followed by NMR Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7191-7204. [PMID: 31039607 DOI: 10.1021/acs.langmuir.9b00295] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ultrasmall gold nanoparticles (core diameter 2 nm) were surface-conjugated with azide groups by attaching the azide-functionalized tripeptide lysine(N3)-cysteine-asparagine with ∼117 molecules on each nanoparticle. A covalent surface modification with alkyne-containing molecules was then possible by copper-catalyzed click chemistry. The successful clicking to the nanoparticle surface was demonstrated with 13C-labeled propargyl alcohol. All steps of the nanoparticle surface conjugation were verified by extensive NMR spectroscopy on dispersed nanoparticles. The particle diameter and the dispersion state were assessed by high-resolution transmission electron microscopy (HRTEM), differential centrifugal sedimentation (DCS), and 1H-DOSY NMR spectroscopy. The clicking of fluorescein (FAM-alkyne) gave strongly fluorescing ultrasmall nanoparticles that were traced inside eukaryotic cells. The uptake of these nanoparticles after 24 h by HeLa cells was very efficient and showed that the nanoparticles even penetrated the nuclear membrane to a very high degree (in contrast to dissolved FAM-alkyne alone that did not enter the cell). About 8 fluorescein molecules were clicked to each nanoparticle.
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Affiliation(s)
- Selina Beatrice van der Meer
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
| | - Kateryna Loza
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
| | - Karolin Wey
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
| | - Marc Heggen
- Ernst Ruska-Center for Microscopy and Spectroscopy with Electrons , Forschungszentrum Jülich GmbH , 52425 Jülich , Germany
| | - Christine Beuck
- Department of Structural and Medicinal Biochemistry, Centre for Medical Biotechnology (ZMB) , University of Duisburg-Essen , 45117 Essen , Germany
| | - Peter Bayer
- Department of Structural and Medicinal Biochemistry, Centre for Medical Biotechnology (ZMB) , University of Duisburg-Essen , 45117 Essen , Germany
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE) , University of Duisburg-Essen , Universitätsstr. 5-7 , 45117 Essen , Germany
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Chen S, Ma H, Padelford JW, Qinchen W, Yu W, Wang S, Zhu M, Wang G. Near Infrared Electrochemiluminescence of Rod-Shape 25-Atom AuAg Nanoclusters That Is Hundreds-Fold Stronger Than That of Ru(bpy)3 Standard. J Am Chem Soc 2019; 141:9603-9609. [DOI: 10.1021/jacs.9b02547] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shuang Chen
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials & Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Hedi Ma
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Jonathan W. Padelford
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
| | - Wanli Qinchen
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials & Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Wei Yu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials & Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Shuxin Wang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials & Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials & Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Gangli Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, United States
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Tan Q, Kong W, Sun H, Qin X, Qu F. Fluorometric turn-on detection of ascorbic acid based on controlled release of polyallylamine-capped gold nanoclusters from MnO2 nanosheets. Mikrochim Acta 2019; 186:282. [DOI: 10.1007/s00604-019-3399-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 04/01/2019] [Indexed: 12/11/2022]
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Crawford SE, Hartmann MJ, Millstone JE. Surface Chemistry-Mediated Near-Infrared Emission of Small Coinage Metal Nanoparticles. Acc Chem Res 2019; 52:695-703. [PMID: 30742413 DOI: 10.1021/acs.accounts.8b00573] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
From size-dependent luminescence to localized surface plasmon resonances, the optical properties that emerge from common materials with nanoscale dimensions have been revolutionary. As nanomaterials get smaller, they approach molecular electronic structures, and this transition from bulk to molecular electronic properties is a subject of far-reaching impact. One class of nanomaterials that exhibit particularly interesting optoelectronic features at this size transition are coinage metal (i.e., group 11 elements copper, silver, and gold) nanoparticles with core diameters between approximately 1 to 3 nm (∼25-200 atoms). Coinage metal nanoparticles can exhibit red or near-infrared photoluminescence features that are not seen in either their molecular or larger nanoscale counterparts. This emission has been exploited both as a probe of electronic behavior at the nanoscale as well as in critical applications such as biological imaging and chemical sensing. Interestingly, it has been demonstrated that their photoluminescence figures of merit such as emission quantum yield, energy, and lifetime are largely independent of particle diameter. Instead, emission from particles at this size range depends heavily on the particle surface chemistry, which includes both its metallic composition and the capping ligand architecture. The strong influence of surface chemistry on these emergent optoelectronic phenomena has powerful implications for both the study and use of these particles, primarily due to the theoretically limitless possible surface ligand architectures and metallic compositions. In this Account, we highlight recent work that studies and uses surface chemistry-mediated photoluminescence from coinage metal nanoparticles. Specifically, we emphasize the distinct, as well as synergistic, roles of the nanoparticle capping ligand and the nanoparticle core for controlling and/or enhancing their near-infrared photoluminescence. We then discuss the implications of surface chemistry-mediated photoluminescence as it relates to downstream applications such as energy transfer, sensing, and biological imaging. We conclude by discussing current challenges that remain in the field, including opportunities to develop new particle synthetic routes, analytical tools, and physical frameworks with which to understand small nanoparticle emission. Taken together, we anticipate that these materials will be foundational both in understanding the unique transition from molecular to bulk electronic structures and in the development of nanomaterials that leverage this transition.
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Affiliation(s)
- Scott E. Crawford
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Michael J. Hartmann
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Jill E. Millstone
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
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48
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Niihori Y, Yoshida K, Hossain S, Kurashige W, Negishi Y. Deepening the Understanding of Thiolate-Protected Metal Clusters Using High-Performance Liquid Chromatography. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180357] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yoshiki Niihori
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kana Yoshida
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Wataru Kurashige
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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49
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Yang F, Zhong X, Jiang X, Zhuo Y, Yuan R, Wei S. An ultrasensitive aptasensor based on self-enhanced Au nanoclusters as highly efficient electrochemiluminescence indicator and multi-site landing DNA walker as signal amplification. Biosens Bioelectron 2019; 130:262-268. [PMID: 30771715 DOI: 10.1016/j.bios.2019.01.057] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 01/03/2019] [Accepted: 01/21/2019] [Indexed: 12/16/2022]
Abstract
Gold nanoclusters (Au NCs) have been shown to be prospective nanoscale electrochemiluminescence (ECL) materials that are being extensively explored in bioanalysis. However, the low ECL efficiency of Au NCs has been a bottleneck barrier for their better bioapplications. To overcome this disadvantage, a low oxidation potential co-reactant N,N-diisopropylethylenediamine (DPEA) was first used to prepare self-enhanced Au NCs (Au-DPEA NCs) for drastically enhancing the ECL efficiency of Au NCs in this study. In addition, an efficient multi-site landing DNA walker with multidirectional motion track and rapid payloads release compared to directional DNA walker was constructed for converting target mucin 1 (MUC1) to intermediate DNA and achieving significant signal amplification. On the basis of the Au-DPEA NCs as efficient ECL signal labels and multi-site landing DNA walker as signal amplification strategy, an ECL aptasensor was established for the ultrasensitive detection of MUC1 in the range from 1 fg mL-1 to 1 ng mL-1 with a limit of detection down to 0.54 fg mL-1. The results demonstrated that the present study opened a new research direction for the development of high-efficiency Au NCs indicator as well as ultrasensitive ECL sensing platform for applications in clinical and bioanalysis.
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Affiliation(s)
- Fang Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Xia Zhong
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Xinya Jiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China; Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, PR China
| | - Ying Zhuo
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
| | - Shaping Wei
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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50
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Bain D, Maity S, Patra A. Opportunities and challenges in energy and electron transfer of nanocluster based hybrid materials and their sensing applications. Phys Chem Chem Phys 2019; 21:5863-5881. [DOI: 10.1039/c8cp06188b] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This feature article highlights the recent advances of luminescent metal nanoclusters (MNCs) for their potential applications in healthcare and energy-related materials because of their high photosensitivity, thermal stability, low toxicity, and biocompatibility.
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Affiliation(s)
- Dipankar Bain
- School of Materials Sciences, Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Subarna Maity
- School of Materials Sciences, Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
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