1
|
Bulut Y, Sochor B, Harder C, Reck K, Drewes J, Xu Z, Jiang X, Meinhardt A, Jeromin A, Kohantorabi M, Noei H, Keller TF, Strunskus T, Faupel F, Müller-Buschbaum P, Roth SV. Diblock copolymer pattern protection by silver cluster reinforcement. NANOSCALE 2023; 15:15768-15774. [PMID: 37740389 DOI: 10.1039/d3nr03215a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Pattern fabrication by self-assembly of diblock copolymers is of significant interest due to the simplicity in fabricating complex structures. In particular, polystyrene-block-poly-4-vinylpyridine (PS-b-P4VP) is a fascinating base material as it forms an ordered micellar structure on silicon surfaces. In this work, silver (Ag) is applied using direct current magnetron sputter deposition and high-power impulse magnetron sputter deposition on an ordered micellar PS-b-P4VP layer. The fabricated hybrid materials are structurally analyzed by field emission scanning electron microscopy, atomic force microscopy, and grazing incidence small angle X-ray scattering. When applying simple aqueous posttreatment, the pattern is stable and reinforced by Ag clusters, making micellar PS-b-P4VP ordered layers ideal candidates for lithography.
Collapse
Affiliation(s)
- Yusuf Bulut
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany
| | - Benedikt Sochor
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
| | - Constantin Harder
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany
| | - Kristian Reck
- Chair for Multicomponent Materials, Department of Materials Science, Faculty of Engineering, Christian-Albrechts Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Jonas Drewes
- Chair for Multicomponent Materials, Department of Materials Science, Faculty of Engineering, Christian-Albrechts Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Zhuijun Xu
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany
| | - Xiongzhuo Jiang
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany
| | - Alexander Meinhardt
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Department of Physics, University of Hamburg, Notkestr. 9-11, 22607 Hamburg, Germany
| | - Arno Jeromin
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Mona Kohantorabi
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Heshmat Noei
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Thomas F Keller
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Department of Physics, University of Hamburg, Notkestr. 9-11, 22607 Hamburg, Germany
| | - Thomas Strunskus
- Chair for Multicomponent Materials, Department of Materials Science, Faculty of Engineering, Christian-Albrechts Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Franz Faupel
- Chair for Multicomponent Materials, Department of Materials Science, Faculty of Engineering, Christian-Albrechts Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Peter Müller-Buschbaum
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials, James-Franck-Str. 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergerstraße 1, 85748 Garching, Germany
| | - Stephan V Roth
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.
- KTH Royal Institute of Technology, Teknikringen 56-58, 100 44 Stockholm, Sweden
| |
Collapse
|
2
|
Zou X, Kang X, Zhu M. Recent developments in the investigation of driving forces for transforming coinage metal nanoclusters. Chem Soc Rev 2023; 52:5892-5967. [PMID: 37577838 DOI: 10.1039/d2cs00876a] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Metal nanoclusters serve as an emerging class of modular nanomaterials. The transformation of metal nanoclusters has been fully reflected in their studies from every aspect, including the structural evolution analysis, physicochemical property regulation, and practical application promotion. In this review, we highlight the driving forces for transforming atomically precise metal nanoclusters and summarize the related transforming principles and fundamentals. Several driving forces for transforming nanoclusters are meticulously reviewed herein: ligand-exchange-induced transformations, metal-exchange-induced transformations, intercluster reactions, photochemical transformations, oxidation/reduction-induced transformations, and other factors (intrinsic instability, pH, temperature, and metal salts) triggering transformations. The exploitation of transforming principles to customize the preparations, structures, physicochemical properties, and practical applications of metal nanoclusters is also disclosed. At the end of this review, we provide our perspectives and highlight the challenges remaining for future research on the transformation of metal nanoclusters. Our intended audience is the broader scientific community interested in metal nanoclusters, and we believe that this review will provide researchers with a comprehensive synthetic toolbox and insights on the research fundamentals needed to realize more cluster-based nanomaterials with customized compositions, structures, and properties.
Collapse
Affiliation(s)
- Xuejuan Zou
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
| | - Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
| |
Collapse
|
3
|
Wang Y, Shen B, Zhang Z, Chen Y, Zhu L, Zhang Y, Huang H, Jiang L. Multifunctional fluorescent gold nanoclusters with enhanced aggregation-induced emissions (AIEs) and excellent antibacterial effect for bacterial imaging and wound healing. BIOMATERIALS ADVANCES 2022; 137:212841. [PMID: 35929270 DOI: 10.1016/j.bioadv.2022.212841] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 04/11/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
To explore new alternatives to combat increasing risk of bacterial infection, in this work, a cationic antimicrobial peptide (HHC10) and glutathione (GSH) co-ligand protected ultra-small gold nanoclusters (Au NCs) was constructed by a simple one-pot method. The intrinsic luminescent property of GSH-protected Au NCs (AuxGSH) endowed enhanced aggregation-induced emissions (AIEs) of co-ligand-protected Au NCs (AuxGSH-HHC10), which exhibited a very strong orange luminescence. Based on the AIE effect, for one thing, AuxGSH could be applied to rapidly and selectively detect Gram-positive bacteria. For another, AuxGSH-HHC10 exhibited potential for multicolor imaging of both Gram-negative and Gram-positive bacteria. Besides, as-synthesized AuxGSH-HHC10 could act as potent nanoantibiotics against both Gram-negative and Gram-positive bacteria, which could not only avoid drug tolerance but also be effective toward drug-resistance bacteria. The antibacterial mechanism indicated that the synergetic effect of the generation of reactive oxygen species (ROS), binding with DNA, and broad-spectrum antibacterial activity of HHC10 led to the membrane damage, depolarization, and interference of biological function, thus enhancing the antibacterial effect. More importantly, such an Au NCs could realize excellent therapeutic outcomes for wound healing in vivo, and showed good biocompatibility and biosafety toward health tissues. The results will provide a great potential for the application of Au NCs for imaging-guided antibacterial platform.
Collapse
Affiliation(s)
- Yuxian Wang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Bowen Shen
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zhengyi Zhang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yao Chen
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Liying Zhu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yangheng Zhang
- Department of Periodontology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - He Huang
- College of Pharmaceutical Science, Nanjing Tech University, Nanjing 211816, China; School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China.
| | - Ling Jiang
- College of Food Science and Light Industry, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| |
Collapse
|
4
|
Mohanta YK, Chakrabartty I, Mishra AK, Chopra H, Mahanta S, Avula SK, Patowary K, Ahmed R, Mishra B, Mohanta TK, Saravanan M, Sharma N. Nanotechnology in combating biofilm: A smart and promising therapeutic strategy. Front Microbiol 2022; 13:1028086. [PMID: 36938129 PMCID: PMC10020670 DOI: 10.3389/fmicb.2022.1028086] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/19/2022] [Indexed: 03/06/2023] Open
Abstract
Since the birth of civilization, people have recognized that infectious microbes cause serious and often fatal diseases in humans. One of the most dangerous characteristics of microorganisms is their propensity to form biofilms. It is linked to the development of long-lasting infections and more severe illness. An obstacle to eliminating such intricate structures is their resistance to the drugs now utilized in clinical practice (biofilms). Finding new compounds with anti-biofilm effect is, thus, essential. Infections caused by bacterial biofilms are something that nanotechnology has lately shown promise in treating. More and more studies are being conducted to determine whether nanoparticles (NPs) are useful in the fight against bacterial infections. While there have been a small number of clinical trials, there have been several in vitro outcomes examining the effects of antimicrobial NPs. Nanotechnology provides secure delivery platforms for targeted treatments to combat the wide range of microbial infections caused by biofilms. The increase in pharmaceuticals' bioactive potential is one of the many ways in which nanotechnology has been applied to drug delivery. The current research details the utilization of several nanoparticles in the targeted medication delivery strategy for managing microbial biofilms, including metal and metal oxide nanoparticles, liposomes, micro-, and nanoemulsions, solid lipid nanoparticles, and polymeric nanoparticles. Our understanding of how these nanosystems aid in the fight against biofilms has been expanded through their use.
Collapse
Affiliation(s)
- Yugal Kishore Mohanta
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya (USTM), Techno City, Meghalaya, India
- *Correspondence: Yugal Kishore Mohanta,
| | - Ishani Chakrabartty
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya (USTM), Techno City, Meghalaya, India
- Indegene Pvt. Ltd., Manyata Tech Park, Bangalore, India
| | | | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Saurov Mahanta
- National Institute of Electronics and Information Technology (NIELIT), Guwahati Centre, Guwahati, Assam, India
| | - Satya Kumar Avula
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
| | - Kaustuvmani Patowary
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya (USTM), Techno City, Meghalaya, India
| | - Ramzan Ahmed
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya (USTM), Techno City, Meghalaya, India
- Department of Physics, Faculty of Science, Kasetsart University, Bangkok, Thailand
| | - Bibhudutta Mishra
- Department of Gastroenterology and HNU, All India Institute of Medical Sciences, New Delhi, India
| | - Tapan Kumar Mohanta
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
- Tapan Kumar Mohanta,
| | - Muthupandian Saravanan
- AMR and Nanotherapeutics Laboratory, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Nanaocha Sharma
- Institute of Bioresources and Sustainable Development, Imphal, Manipur, India
- Nanaocha Sharma,
| |
Collapse
|
5
|
DNA mediated graphene oxide (GO)-nanosheets dispersed supramolecular GO-DNA hydrogel: An efficient soft-milieu for simplistic synthesis of Ag-NPs@GO-DNA and Gram + ve/-ve bacteria-based Ag-NPs@GO-DNA-bacteria nano-bio composites. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
6
|
Jana A, Jash M, Poonia AK, Paramasivam G, Islam MR, Chakraborty P, Antharjanam S, Machacek J, Ghosh S, Adarsh KNVD, Base T, Pradeep T. Light-Activated Intercluster Conversion of an Atomically Precise Silver Nanocluster. ACS NANO 2021; 15:15781-15793. [PMID: 34605625 DOI: 10.1021/acsnano.1c02602] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Noble metal nanoclusters protected with carboranes, a 12-vertex, nearly icosahedral boron-carbon framework system, have received immense attention due to their different physicochemical properties. We have synthesized ortho-carborane-1,2-dithiol (CBDT) and triphenylphosphine (TPP) coprotected [Ag42(CBDT)15(TPP)4]2- (shortly Ag42) using a ligand-exchange induced structural transformation reaction starting from [Ag18H16(TPP)10]2+ (shortly Ag18). The formation of Ag42 was confirmed using UV-vis absorption spectroscopy, mass spectrometry, transmission electron microscopy, X-ray photoelectron spectroscopy, infrared spectroscopy, and multinuclear magnetic resonance spectroscopy. Multiple UV-vis optical absorption features, which exhibit characteristic patterns, confirmed its molecular nature. Ag42 is the highest nuclearity silver nanocluster protected with carboranes reported so far. Although these clusters are thermally stable up to 200 °C in their solid state, light-irradiation of its solutions in dichloromethane results in its structural conversion to [Ag14(CBDT)6(TPP)6] (shortly Ag14). Single crystal X-ray diffraction of Ag14 exhibits Ag8-Ag6 core-shell structure of this nanocluster. Other spectroscopic and microscopic studies also confirm the formation of Ag14. Time-dependent mass spectrometry revealed that this light-activated intercluster conversion went through two sets of intermediate clusters. The first set of intermediates, [Ag37(CBDT)12(TPP)4]3- and [Ag35(CBDT)8(TPP)4]2- were formed after 8 h of light irradiation, and the second set comprised of [Ag30(CBDT)8(TPP)4]2-, [Ag26(CBDT)11(TPP)4]2-, and [Ag26(CBDT)7(TPP)7]2- were formed after 16 h of irradiation. After 24 h, the conversion to Ag14 was complete. Density functional theory calculations reveal that the kernel-centered excited state molecular orbitals of Ag42 are responsible for light-activated transformation. Interestingly, Ag42 showed near-infrared emission at 980 nm (1.26 eV) with a lifetime of >1.5 μs, indicating phosphorescence, while Ag14 shows red luminescence at 626 nm (1.98 eV) with a lifetime of 550 ps, indicating fluorescence. Femtosecond and nanosecond transient absorption showed the transitions between their electronic energy levels and associated carrier dynamics. Formation of the stable excited states of Ag42 is shown to be responsible for the core transformation.
Collapse
Affiliation(s)
- Arijit Jana
- DST Unit of Nanoscience (DST UNS), and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600036, India
| | - Madhuri Jash
- DST Unit of Nanoscience (DST UNS), and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600036, India
| | - Ajay Kumar Poonia
- Department of Physics, Indian Institute of Science Education, and Research Bhopal, Bhopal-462066, India
| | - Ganesan Paramasivam
- DST Unit of Nanoscience (DST UNS), and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600036, India
| | - Md Rabiul Islam
- DST Unit of Nanoscience (DST UNS), and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600036, India
| | - Papri Chakraborty
- DST Unit of Nanoscience (DST UNS), and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600036, India
| | - Sudhadevi Antharjanam
- Sophisticated Analytical Instruments Facility (SAIF), Indian Institute of Technology, Madras, Chennai-600036, India
| | - Jan Machacek
- Department of Synthesis, Institute of Inorganic Chemistry, The Czech Academy of Science, 1001 Husinec-Rez, 25068 Rez, Czech Republic
| | - Sundargopal Ghosh
- DST Unit of Nanoscience (DST UNS), and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600036, India
| | | | - Tomas Base
- Department of Synthesis, Institute of Inorganic Chemistry, The Czech Academy of Science, 1001 Husinec-Rez, 25068 Rez, Czech Republic
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS), and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600036, India
| |
Collapse
|
7
|
Ma S, Yang Q, Zhang W, Xiao G, Wang M, Cheng L, Zhou X, Zhao M, Ji J, Zhang J, Yue Z. Silver nanoclusters and carbon dots based light-addressable sensors for multichannel detections of dopamine and glutathione and its applications in probing of parkinson's diseases. Talanta 2020; 219:121290. [PMID: 32887032 DOI: 10.1016/j.talanta.2020.121290] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 06/03/2020] [Accepted: 06/10/2020] [Indexed: 11/19/2022]
Abstract
Parkinson's disease (PD) is a common neurological disease caused by nerve cells degradation which leads to extremely low level of dopamine (DA) in patients. Therefore, ultrasensitive DA detection is particularly important for the assessment and treatment of Parkinson's patients. In this research, photoelectrochemical (PEC) sensors based on Ag44(SR)30 nanoclusters (AgNCs) with 5-mercapto-2-nitrobenzoic acid (MNBA) ligands were first developed for ultrasensitive and selective detection of DA. Then, hybrid nanomaterials by introducing graphene oxide (GO) and silver nanoparticles (AgNPs) into AgNCs were used to enhance sensing properties. AgNCs/AgNPs/GO based PEC sensors achieved high sensitivity (7.476 nA/μM) and low limit of detection (LOD, S/N = 3, 53 nM) in the linear range 0.16-6 μM DA concentration. Besides DA, PD causes the concentration change of other analytes, such as glutathione (GSH). Multichannel detections of different analytes can provide more information in studying PD. Therefore, carbon dots (CDs) based PEC sensors were designed and achieved high sensing performances on GSH detection. Then, AgNCs/AgNPs/GO and CDs based PEC sensors were combined and extended into light-addressable sensors for multichannel detections of DA and GSH. Algorithms were used to solve interference problems to improve the measurement accuracy of DA and GSH in complex solution. Finally, PD biological model samples from mice were measured by light-addressable sensors. The relationships between the DA and GSH concentration and the PD stage were proved. Our designed light-addressable sensors exhibited advantages of multichannel detection, high sensitivity, fast response and so on. In the future, it can be expanded to detect more biological molecules to provide more information on studying PD.
Collapse
Affiliation(s)
- Song Ma
- Department of Microelectronics, Nankai University, Tianjin, 300350, China.
| | - Qiaochun Yang
- Department of Microelectronics, Nankai University, Tianjin, 300350, China.
| | - Wenwen Zhang
- Department of Life Science, Nankai University, Tianjin, 300071, China.
| | - Gang Xiao
- Department of Microelectronics, Nankai University, Tianjin, 300350, China.
| | - Mingliang Wang
- Department of Microelectronics, Nankai University, Tianjin, 300350, China.
| | - Linyang Cheng
- Department of Microelectronics, Nankai University, Tianjin, 300350, China.
| | - Xin Zhou
- Department of Pathophysiology, Shanxi Medical University, Taiyuan, 030001, China.
| | - Meng Zhao
- School of Electro-Mechanical Engineering, Xidian University, Xi'an, 710071, China.
| | - Jing Ji
- School of Electro-Mechanical Engineering, Xidian University, Xi'an, 710071, China.
| | - Jun Zhang
- Department of Life Science, Nankai University, Tianjin, 300071, China.
| | - Zhao Yue
- Department of Microelectronics, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Tianjin, 300350, China.
| |
Collapse
|
8
|
Ruan ZW, Zhang X, Pang AY, Dai FR, Chen ZN. Blue luminescent silver(I) complexes constructed by 2-diphenylphosphinopyridine and dicyanamide or tricyanomethanide. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
9
|
|
10
|
Li C, Shao C, Li L, Liu X, Liu M. In situ fabrication of a luminescent copper nanocluster/eggshell membrane composite and its application in visual detection of Ag + ions, light-emitting diodes and surface patterning. Photochem Photobiol Sci 2019; 18:2942-2951. [PMID: 31746925 DOI: 10.1039/c9pp00166b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this work, we report a novel strategy for fabricating a luminescent 2D nanocomposite at room temperature by in situ generation of luminescent copper nanoclusters (Cu NCs) embedded in natural monolithic eggshell membrane (ESM) using dithiothreitol as the reducing and capping agent. The established fabrication is facile, cost-effective and viable. The as-prepared Cu NC/ESM nanocomposite exhibited excellent photoluminescence performance, improved chemical, thermal and photo stability, convenient tailoring and flexibility. Significantly, the nanocomposites could be employed as test strips for the visual detection of Ag+ ions based on the luminescence quenching phenomenon and as color conversion layers in light-emitting diodes. Furthermore, application of the proposed strategy for surface luminescence patterning was well demonstrated, indicating great potential in biomass based anti-counterfeiting, information encryption and security paper or sheets.
Collapse
Affiliation(s)
- Chunbo Li
- College of Chemistry and Materials Science, Information College, Huaibei Normal University, Huaibei, Anhui 235000, China.
| | - Congying Shao
- College of Chemistry and Materials Science, Information College, Huaibei Normal University, Huaibei, Anhui 235000, China.
| | - Lu Li
- College of Chemistry and Materials Science, Information College, Huaibei Normal University, Huaibei, Anhui 235000, China.
| | - Xianhu Liu
- College of Chemistry and Materials Science, Information College, Huaibei Normal University, Huaibei, Anhui 235000, China.
| | - Mingzhu Liu
- College of Chemistry and Materials Science, Information College, Huaibei Normal University, Huaibei, Anhui 235000, China.
| |
Collapse
|
11
|
Liu J, Li S, Fang Y, Zhu Z. Boosting antibacterial activity with mesoporous silica nanoparticles supported silver nanoclusters. J Colloid Interface Sci 2019; 555:470-479. [PMID: 31400539 DOI: 10.1016/j.jcis.2019.08.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/21/2019] [Accepted: 08/02/2019] [Indexed: 12/11/2022]
Abstract
Ultrasmall silver nanoclusters (Ag NCs) are one of the emerging and highly efficient antibacterial agents, owing to the unique features of sub-2 nm particle size and the high abundance of the active Ag+ species. However, practical applications of Ag NCs in biological environment are often hampered by silver oxidization, which results in particle aggregation and loss of antibacterial activity. In this study, for the first time, we develop a facile method to synthesize highly dispersed Ag NCs decorated mesoporous silica nanoparticles (Ag NC-MSNs) capable of long-term and efficient release of Ag+ ions. This novel Ag NC-MSNs nanocomposite was demonstrated as an effective antibacterial agent against both Gram-positive and Gram-negative pathogenic bacteria. Compared with the counterparts Ag NCs and silver nanoparticles decorated mesoporous silica nanoparticles (Ag NP-MSNs), Ag NC-MSNs exhibit 17-fold and 27-fold enhancement in antibacterial potency, respectively. The homogeneous distribution of ultrasmall Ag NCs in the mesoporous architecture of supporting MSNs matrix is crucial for the controlled release of Ag+ ions, leading to the superior broad-spectrum antimicrobial activity. Moreover, the cytotoxicity assay indicated that the effective antibacterial concentration of Ag NC-MSNs shows minimum toxicity on mammalian cells. This new Ag nanocomposite developed in this work is promising for practical applications against various microbial infections.
Collapse
Affiliation(s)
- Jing Liu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Siheng Li
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Yushuang Fang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Zhiling Zhu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| |
Collapse
|
12
|
Khandelwal P, Singh DK, Poddar P. Advances in the Experimental and Theoretical Understandings of Antibiotic Conjugated Gold Nanoparticles for Antibacterial Applications. ChemistrySelect 2019. [DOI: 10.1002/slct.201900083] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Puneet Khandelwal
- Physical & Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune - 411008 India
| | - Dheeraj K. Singh
- Department of PhysicsInstitute of Infrastructure Technology Research & Management Ahmedabad - 380026 India
| | - Pankaj Poddar
- Physical & Materials Chemistry DivisionCSIR-National Chemical Laboratory Pune - 411008 India
| |
Collapse
|
13
|
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
| |
Collapse
|
14
|
Pandey NK, Chudal L, Phan J, Lin L, Johnson O, Xing M, Liu JP, Li H, Huang X, Shu Y, Chen W. A facile method for the synthesis of copper–cysteamine nanoparticles and study of ROS production for cancer treatment. J Mater Chem B 2019; 7:6630-6642. [DOI: 10.1039/c9tb01566c] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A facile synthesis method of copper–cysteamine nanoparticles is reported and their application for cancer treatment through ROS-mediated mechanisms is explored.
Collapse
Affiliation(s)
| | - Lalit Chudal
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
| | - Jonathan Phan
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
| | - Liangwu Lin
- Laboratory on High-Strength Structural Materials
- Central South University
- Changsha 410083
- P. R. China
| | - Omar Johnson
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
| | - Meiying Xing
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
| | - J. Ping Liu
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
| | - Haibin Li
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
- School of Materials Science and Engineering
| | - Xuejing Huang
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
| | - Yang Shu
- Research Center for Analytical Sciences
- Department of Chemistry
- College of Sciences
- Northeastern University
- Shenyang 110819
| | - Wei Chen
- Department of Physics
- University of Texas at Arlington
- Arlington
- USA
| |
Collapse
|
15
|
Hoque J, Yadav V, Prakash RG, Sanyal K, Haldar J. Dual-Function Polymer–Silver Nanocomposites for Rapid Killing of Microbes and Inhibiting Biofilms. ACS Biomater Sci Eng 2018; 5:81-91. [DOI: 10.1021/acsbiomaterials.8b00239] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
16
|
|
17
|
Wang ZY, Wang MQ, Li YL, Luo P, Jia TT, Huang RW, Zang SQ, Mak TCW. Atomically Precise Site-Specific Tailoring and Directional Assembly of Superatomic Silver Nanoclusters. J Am Chem Soc 2018; 140:1069-1076. [DOI: 10.1021/jacs.7b11338] [Citation(s) in RCA: 214] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhao-Yang Wang
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Meng-Qi Wang
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yan-Ling Li
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Luo
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Tong-Tong Jia
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Ren-Wu Huang
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Shuang-Quan Zang
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Thomas C. W. Mak
- College
of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
- Department
of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, New Territories Hong Kong SAR, China
| |
Collapse
|
18
|
Chakraborty I, Pradeep T. Atomically Precise Clusters of Noble Metals: Emerging Link between Atoms and Nanoparticles. Chem Rev 2017; 117:8208-8271. [DOI: 10.1021/acs.chemrev.6b00769] [Citation(s) in RCA: 1305] [Impact Index Per Article: 186.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST
UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST
UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
19
|
Khandelwal P, Poddar P. Fluorescent metal quantum clusters: an updated overview of the synthesis, properties, and biological applications. J Mater Chem B 2017; 5:9055-9084. [DOI: 10.1039/c7tb02320k] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A brief history of metal quantum clusters, their synthesis methods, physical properties, and an updated overview of their applications is provided.
Collapse
Affiliation(s)
- Puneet Khandelwal
- Physical & Materials Chemistry Division
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
| | - Pankaj Poddar
- Physical & Materials Chemistry Division
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
| |
Collapse
|
20
|
Farrag M, Mohamed RA. Ecotoxicity of ∼1 nm silver and palladium nanoclusters protected by l -glutathione on the microbial growth under light and dark conditions. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.07.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
21
|
Yu Y, Mok BYL, Loh XJ, Tan YN. Rational Design of Biomolecular Templates for Synthesizing Multifunctional Noble Metal Nanoclusters toward Personalized Theranostic Applications. Adv Healthc Mater 2016; 5:1844-59. [PMID: 27377035 DOI: 10.1002/adhm.201600192] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/08/2016] [Indexed: 12/21/2022]
Abstract
Biomolecule-templated or biotemplated metal nanoclusters (NCs) are ultrasmall (<2 nm) metal (Au, Ag) particles stabilized by a certain type of biomolecular template (e.g., peptides, proteins, and DNA). Due to their unique physiochemical properties, biotemplated metal NCs have been widely used in sensing, imaging, delivery and therapy. The overwhelming applications in these individual areas imply the great promise of harnessing biotemplated metal NCs in more advanced biomedical aspects such as theranostics. Although applications of biotemplated metal NCs as theranostic agents are trending, the rational design of biomolecular templates suitable for the synthesis of multifunctional metal NCs for theranostics is comparatively underexplored. This progress report first identifies the essential attributes of biotemplated metal NCs for theranostics by reviewing the state-of-art applications in each of the four modalities of theranostics, namely sensing, imaging, delivery and therapy. To achieve high efficacy in these modalities, we elucidate the design principles underlying the use of biomolecules (proteins, peptides and nucleic acids) to control the NC size, emission color and surface chemistries for post-functionalization of therapeutic moieties. We then propose a unified strategy to engineer biomolecular templates that combine all these modalities to produce multifunctional biotemplated metal NCs that can serve as the next-generation personalized theranostic agents.
Collapse
Affiliation(s)
- Yong Yu
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
| | - Beverly Y. L. Mok
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
| | - Yen Nee Tan
- Institute of Materials Research and Engineering; The Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, #08-03 Innovis 138634 Singapore
| |
Collapse
|
22
|
Sharma B, Mahata A, Mandani S, Sarma TK, Pathak B. Coordination polymer hydrogels through Ag(i)-mediated spontaneous self-assembly of unsubstituted nucleobases and their antimicrobial activity. RSC Adv 2016. [DOI: 10.1039/c6ra11137h] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The formation of effective antimicrobial metallogels through Ag(i) ion mediated self-assembly of unsubstituted nucleobases is reported. The Ag–pyrimidine gels could further reduce Ag+ ions to Ag nanoparticles decorated along the nanofibers.
Collapse
Affiliation(s)
- Bhagwati Sharma
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore-452020
- India
| | - Arup Mahata
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore-452020
- India
| | - Sonam Mandani
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore-452020
- India
| | - Tridib K. Sarma
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore-452020
- India
| | - Biswarup Pathak
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore-452020
- India
| |
Collapse
|
23
|
Tominaga C, Hasegawa H, Yamashita K, Arakawa R, Kawasaki H. UV photo-mediated size-focusing synthesis of silver nanoclusters. RSC Adv 2016. [DOI: 10.1039/c6ra10892j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
In this work, we first report the photo-mediated size-focusing synthesis of glutathione (SG)-protected atomically precise Ag nanoclusters (Ag NCs).
Collapse
Affiliation(s)
- C. Tominaga
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - H. Hasegawa
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - K. Yamashita
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - R. Arakawa
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - H. Kawasaki
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| |
Collapse
|
24
|
Huang G, Tong G, Liu J, Zhang W, Chen L, Quan C, Jiang Q, Sun H, Zhang C. Construction of Silver Nanoparticle-Loaded MicellesViaCoordinate Interaction and Their Antibacterial Activity. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2015.1030655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
25
|
Hu Y, Guo W, Wei H. Protein- and Peptide-directed Approaches to Fluorescent Metal Nanoclusters. Isr J Chem 2015. [DOI: 10.1002/ijch.201400178] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
26
|
Maity M, Sajisha VS, Maitra U. Hydrogelation of bile acid–peptide conjugates and in situ synthesis of silver and gold nanoparticles in the hydrogel matrix. RSC Adv 2015. [DOI: 10.1039/c5ra17917c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A number of bile acid–peptide conjugates were synthesized and their hydrogelation properties were studied. These gels were used as scaffolds to in situ make Ag and Au nanoparticle–gel hybrids.
Collapse
Affiliation(s)
- Mitasree Maity
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
| | | | - Uday Maitra
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
| |
Collapse
|
27
|
Sarkar S, Chakraborty I, Panwar MK, Pradeep T. Isolation and Tandem Mass Spectrometric Identification of a Stable Monolayer Protected Silver-Palladium Alloy Cluster. J Phys Chem Lett 2014; 5:3757-3762. [PMID: 26278746 DOI: 10.1021/jz5019509] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A selenolate-protected Ag-Pd alloy cluster was synthesized using a one-pot solution-phase route. The crude product upon chromatographic analyses under optimized conditions gave three distinct clusters with unique optical features. One of these exhibits a molecular peak centered at m/z 2839, in its negative ion mass spectrum assigned to Ag5Pd4(SePh)12(-), having an exact match with the corresponding calculated spectrum. Tandem mass spectrometry of the molecular ion peak up to MS(9) was performed. Complex isotope distributions in each of the mass peaks confirmed the alloy composition. We find the Ag3Pd3(-) core to be highly stable. The composition was further supported by scanning electron microscopy, energy-dispersive spectroscopy, and X-ray photoelectron spectroscopy.
Collapse
Affiliation(s)
- Sreya Sarkar
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Manoj Kumar Panwar
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - T Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| |
Collapse
|
28
|
Chakraborty I, Pradeep T. Reversible formation of Ag₄₄ from selenolates. NANOSCALE 2014; 6:14190-14194. [PMID: 25342431 DOI: 10.1039/c4nr03267e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The cluster Ag₄₄SePh₃₀, originally prepared from silver selenolate, upon oxidative decomposition by H₂O₂ gives the same cluster back, in an apparently reversible synthesis. Such an unusual phenomenon was not seen for the corresponding thiolate analogues. From several characterization studies such as mass spectrometry, Raman spectroscopy, etc., it has been confirmed that the degraded and as-synthesized selenolates are the same in nature, which leads to the reversible process. The possibility of making clusters from the degraded material makes cluster synthesis economical. This observation makes one to consider cluster synthesis to be a reversible chemical process, at least for selenolates.
Collapse
Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
| | | |
Collapse
|
29
|
Zheng K, Yuan X, Goswami N, Zhang Q, Xie J. Recent advances in the synthesis, characterization, and biomedical applications of ultrasmall thiolated silver nanoclusters. RSC Adv 2014. [DOI: 10.1039/c4ra12054j] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
|
30
|
Chakraborty I, Bhuin RG, Bhat S, Pradeep T. Blue emitting undecaplatinum clusters. NANOSCALE 2014; 6:8561-4. [PMID: 24975972 DOI: 10.1039/c4nr02778g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A blue luminescent 11-atom platinum cluster showing step-like optical features and the absence of plasmon absorption was synthesized. The cluster was purified using high performance liquid chromatography (HPLC). Electrospray ionization (ESI) and matrix assisted laser desorption ionization (MALDI) mass spectrometry (MS) suggest a composition, Pt11(BBS)8, which was confirmed by a range of other experimental tools. The cluster is highly stable and compatible with many organic solvents.
Collapse
Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
| | | | | | | |
Collapse
|
31
|
Chakraborty I, Erusappan J, Govindarajan A, Sugi KS, Udayabhaskararao T, Ghosh A, Pradeep T. Emergence of metallicity in silver clusters in the 150 atom regime: a study of differently sized silver clusters. NANOSCALE 2014; 6:8024-31. [PMID: 24905949 DOI: 10.1039/c4nr00679h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We report the systematic appearance of a plasmon-like optical absorption feature in silver clusters protected with 2-phenylethanethiol (PET), 4-flurothiophenol (4-FTP) and (4-(t-butyl)benzenethiol (BBS) as a function of cluster size. A wide range of clusters, namely, Ag₄₄(4-FTP)₃₀, Ag₅₅(PET)₃₁, ∼Ag₇₅(PET)₄₀, ∼Ag₁₁₄(PET)₄₆, Ag₁₅₂(PET)₆₀, ∼Ag₂₀₂(BBS)₇₀, ∼Ag₄₂₃(PET)₁₀₅, and ∼Ag₅₃₀(PET)₁₀₀ were prepared. The UV/Vis spectra show multiple features up to ∼Ag₁₁₄; and thereafter, from Ag₁₅₂ onwards, the plasmonic feature corresponding to a single peak at ∼460 nm evolves, which points to the emergence of metallicity in clusters composed of ∼150 metal atoms. A minor blue shift in the plasmonic peak was observed as cluster sizes increased and merged with the spectrum of plasmonic nanoparticles of 4.8 nm diameter protected with PET. Clusters with different ligands, such as 4-FTP and BBS, also show this behavior, which suggests that the 'emergence of metallicity' is independent of the functionality of the thiol ligand.
Collapse
Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
| | | | | | | | | | | | | |
Collapse
|
32
|
Chakraborty I, Mahata S, Mitra A, De G, Pradeep T. Controlled synthesis and characterization of the elusive thiolated Ag55cluster. Dalton Trans 2014; 43:17904-7. [DOI: 10.1039/c4dt02476a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A stable, Ag55cluster protected with 4-(tert-butyl)benzyl mercaptan (BBSH) was synthesized through a solid state route.
Collapse
Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036, India
| | - Shrabani Mahata
- National Institute of Science and Technology
- Berhampur, India
| | - Anuradha Mitra
- CSIR-Central Glass and Ceramics Research Institute
- Kolkata, India
| | - Goutam De
- CSIR-Central Glass and Ceramics Research Institute
- Kolkata, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036, India
| |
Collapse
|
33
|
Ding Y, Shi L, Wei H. Protein-directed approaches to functional nanomaterials: a case study of lysozyme. J Mater Chem B 2014; 2:8268-8291. [DOI: 10.1039/c4tb01235f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Using lysozyme as a model, protein-directed approaches to functional nanomaterials were reviewed, making rational materials design possible in the future.
Collapse
Affiliation(s)
- Yubin Ding
- Department of Biomedical Engineering
- Aerosol Bioeffects and Health Research Center
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
| | - Leilei Shi
- Department of Biomedical Engineering
- Aerosol Bioeffects and Health Research Center
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
| | - Hui Wei
- Department of Biomedical Engineering
- Aerosol Bioeffects and Health Research Center
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
| |
Collapse
|