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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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Patkar SS, Tang Y, Zhang T, Bisram AM, Saven JG, Pochan DJ, Kiick KL. Genetically Fused Resilin-like Polypeptide-Coiled Coil Bundlemer Conjugates Exhibit Tunable Multistimuli-Responsiveness and Undergo Nanofibrillar Assembly. Biomacromolecules 2024; 25:2449-2461. [PMID: 38484154 DOI: 10.1021/acs.biomac.3c01402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Peptide-based materials are diverse candidates for self-assembly into modularly designed and stimuli-responsive nanostructures with precisely tunable compositions. Here, we genetically fused computationally designed coiled coil-forming peptides to the N- and C-termini of compositionally distinct multistimuli-responsive resilin-like polypeptides (RLPs) of various lengths. The successful expression of these hybrid polypeptides in bacterial hosts was confirmed through techniques such as gel electrophoresis, mass spectrometry, and amino acid analysis. Circular dichroism spectroscopy and ultraviolet-visible turbidimetry demonstrated that despite the fusion of disparate structural and responsive units, the coiled coils remained stable in the hybrid polypeptides, and the sequence-encoded differences in thermoresponsive phase separation of the RLPs were preserved. Cryogenic transmission electron microscopy and coarse-grained modeling showed that after thermal annealing in solution, the hybrid polypeptides adopted a closed loop conformation and assembled into nanofibrils capable of further hierarchically organizing into cluster structures and ribbon-like structures mediated by the self-association tendency of the RLPs.
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Affiliation(s)
- Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Yao Tang
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Tianren Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Arriana M Bisram
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Jeffery G Saven
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Darrin J Pochan
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware 19713, United States
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Wang B, Fang J, Tang H, Lu S, Chen Y, Yang X, He Y. Dual-functional cellulase-mediated gold nanoclusters for ascorbic acid detection and fluorescence bacterial imaging. Front Bioeng Biotechnol 2023; 11:1258036. [PMID: 37711455 PMCID: PMC10498280 DOI: 10.3389/fbioe.2023.1258036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 08/10/2023] [Indexed: 09/16/2023] Open
Abstract
Protein-protected metal nanomaterials are becoming the most promising fluorescent nanomaterials for biosensing, bioimaging, and therapeutic applications due to their obvious fluorescent molecular properties, favorable biocompatibility and excellent physicochemical properties. Herein, we pioneeringly prepared a cellulase protected fluorescent gold nanoclusters (Cel-Au NCs) exhibiting red fluorescence under the excitation wavelength of 560 nm via a facile and green one-step method. Based on the fluorescence turn-off mechanism, the Cel-Au NCs were used as a biosensor for specificity determination of ascorbic acid (AA) at the emission of 680 nm, which exhibited satisfactory linearity over the range of 10-400 µM and the detection limit of 2.5 µM. Further, the actual sample application of the Au NCs was successfully established by evaluating AA in serum with good recoveries of 98.76%-104.83%. Additionally, the bacteria, including gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) and gram-negative bacteria (Escherichia coli), were obviously stained by Cel-Au NCs with strong red emission. Thereby, as dual-functional nanoclusters, the prepared Cel-Au NCs have been proven to be an excellent fluorescent bioprobe for the detection of AA and bacterial labeling in medical diagnosis and human health maintenance.
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Affiliation(s)
- Baojuan Wang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
- Key Laboratory of Biomedicine in Gene Diseases, Health of Anhui Higher Education Institutes, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Jinxin Fang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
- Key Laboratory of Biomedicine in Gene Diseases, Health of Anhui Higher Education Institutes, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Huiliang Tang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
- Key Laboratory of Biomedicine in Gene Diseases, Health of Anhui Higher Education Institutes, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Shan Lu
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
- Key Laboratory of Biomedicine in Gene Diseases, Health of Anhui Higher Education Institutes, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Yan Chen
- Anhui Key Laboratory of Chemo-Biosensing, Ministry of Education, Anhui Normal University, Wuhu, China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, China
- Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, China
| | - Xiaoqi Yang
- Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
- Key Laboratory of Biomedicine in Gene Diseases, Health of Anhui Higher Education Institutes, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Yuezhen He
- Anhui Key Laboratory of Chemo-Biosensing, Ministry of Education, Anhui Normal University, Wuhu, China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, China
- Laboratory of Biosensing and Bioimaging (LOBAB), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, China
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Patkar SS, Tang Y, Bisram AM, Zhang T, Saven JG, Pochan DJ, Kiick KL. Genetic Fusion of Thermoresponsive Polypeptides with UCST-type Behavior Mediates 1D Assembly of Coiled-Coil Bundlemers. Angew Chem Int Ed Engl 2023; 62:e202301331. [PMID: 36988077 DOI: 10.1002/anie.202301331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/25/2023] [Accepted: 03/28/2023] [Indexed: 03/30/2023]
Abstract
Thermoresponsive resilin-like polypeptides (RLPs) of various lengths were genetically fused to two different computationally designed coiled coil-forming peptides with distinct thermal stability, to develop new strategies to assemble coiled coil peptides via temperature-triggered phase separation of the RLP units. Their successful production in bacterial expression hosts was verified via gel electrophoresis, mass spectrometry, and amino acid analysis. Circular dichroism (CD) spectroscopy, ultraviolet-visible (UV/Vis) turbidimetry, and dynamic light scattering (DLS) measurements confirmed the stability of the coiled coils and showed that the thermosensitive phase behavior of the RLPs was preserved in the genetically fused hybrid polypeptides. Cryogenic-transmission electron microscopy and coarse-grained modeling revealed that functionalizing the coiled coils with thermoresponsive RLPs leads to their thermally triggered noncovalent assembly into nanofibrillar assemblies.
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Affiliation(s)
- Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Yao Tang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Arriana M Bisram
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Tianren Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jeffery G Saven
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Darrin J Pochan
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
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Balu R, Wanasingha N, Mata JP, Rekas A, Barrett S, Dumsday G, Thornton AW, Hill AJ, Roy Choudhury N, Dutta NK. Crowder-directed interactions and conformational dynamics in multistimuli-responsive intrinsically disordered protein. SCIENCE ADVANCES 2022; 8:eabq2202. [PMID: 36542701 PMCID: PMC9770960 DOI: 10.1126/sciadv.abq2202] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
The consequences of crowding on the dynamic conformational ensembles of intrinsically disordered proteins (IDPs) remain unresolved because of their ultrafast motion. Here, we report crowder-induced interactions and conformational dynamics of a prototypical multistimuli-responsive IDP, Rec1-resilin. The effects of a range of crowders of varying sizes, forms, topologies, and concentrations were examined using spectroscopic, spectrofluorimetric, and contrast-matching small- and ultrasmall-angle neutron scattering investigation. To achieve sufficient neutron contrast against the crowders, deuterium-labeled Rec1-resilin was biosynthesized successfully. Moreover, the ab initio "shape reconstruction" approach was used to obtain three-dimensional models of the conformational assemblies. The IDP revealed crowder-specific systematic extension and compaction with the level of macromolecular crowding. Last, a robust extension-contraction model has been postulated to capture the fundamental phenomena governing the observed behavior of IDPs. The study provides insights and fresh perspectives for understanding the interactions and structural dynamics of IDPs in crowded states.
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Affiliation(s)
- Rajkamal Balu
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Nisal Wanasingha
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Jitendra P. Mata
- Australian Center for Neutron Scattering, ANSTO, Lucas Heights, NSW 2234, Australia
| | - Agata Rekas
- National Deuteration Facility, ANSTO, Lucas Heights, NSW 2234, Australia
| | - Susan Barrett
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia
| | - Geoff Dumsday
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia
| | | | - Anita J. Hill
- CSIRO Manufacturing, Bayview Avenue, Clayton, VIC 3168, Australia
| | - Namita Roy Choudhury
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Naba K. Dutta
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
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Wang B, Patkar SS, Kiick KL. Application of Thermoresponsive Intrinsically Disordered Protein Polymers in Nanostructured and Microstructured Materials. Macromol Biosci 2021; 21:e2100129. [PMID: 34145967 PMCID: PMC8449816 DOI: 10.1002/mabi.202100129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/25/2021] [Indexed: 01/15/2023]
Abstract
Modulation of inter- and intramolecular interactions between bioinspired designer molecules can be harnessed for developing functional structures that mimic the complex hierarchical organization of multicomponent assemblies observed in nature. Furthermore, such multistimuli-responsive molecules offer orthogonal tunability for generating versatile multifunctional platforms via independent biochemical and biophysical cues. In this review, the remarkable physicochemical and mechanical properties of genetically engineered protein polymers derived from intrinsically disordered proteins, specifically elastin and resilin, are discussed. This review highlights emerging technologies which use them as building blocks in the fabrication of highly programmable structured biomaterials for applications in delivery of biotherapeutic cargo and regenerative medicine.
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Affiliation(s)
- Bin Wang
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Laboratory, Newark, DE, 19716, USA
- Delaware Biotechnology Institute, Ammon Pinizzotto Biopharmaceutical Innovation Center, 590 Avenue 1743, Newark, DE, 19713, USA
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Balu R, Dutta NK, Dutta AK, Choudhury NR. Resilin-mimetics as a smart biomaterial platform for biomedical applications. Nat Commun 2021; 12:149. [PMID: 33420053 PMCID: PMC7794388 DOI: 10.1038/s41467-020-20375-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 11/19/2020] [Indexed: 12/14/2022] Open
Abstract
Intrinsically disordered proteins have dramatically changed the structure-function paradigm of proteins in the 21st century. Resilin is a native elastic insect protein, which features intrinsically disordered structure, unusual multi-stimuli responsiveness and outstanding resilience. Advances in computational techniques, polypeptide synthesis methods and modular protein engineering routines have led to the development of novel resilin-like polypeptides (RLPs) including modular RLPs, expanding their applications in tissue engineering, drug delivery, bioimaging, biosensors, catalysis and bioelectronics. However, how the responsive behaviour of RLPs is encoded in the amino acid sequence level remains elusive. This review summarises the milestones of RLPs, and discusses the development of modular RLP-based biomaterials, their current applications, challenges and future perspectives. A perspective of future research is that sequence and responsiveness profiling of RLPs can provide a new platform for the design and development of new modular RLP-based biomaterials with programmable structure, properties and functions.
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Affiliation(s)
- Rajkamal Balu
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Naba K Dutta
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia.
| | - Ankit K Dutta
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Namita Roy Choudhury
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia.
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Balu R, Dorishetty P, Mata JP, Hill AJ, Dutta NK, Choudhury NR. Tuning the Hierarchical Structure and Resilience of Resilin-like Polypeptide Hydrogels Using Graphene Oxide. ACS APPLIED BIO MATERIALS 2020; 3:8688-8697. [DOI: 10.1021/acsabm.0c01088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajkamal Balu
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Pramod Dorishetty
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Jitendra P. Mata
- Australian Centre for Neutron Scattering (ACNS), Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, New South Wales 2232, Australia
| | - Anita J. Hill
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Naba K. Dutta
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
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