1
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Lu Z, Mitra D, Narayan SR, Williams TJ. An Immobilized (Carbene)Nickel Catalyst for Water Oxidation. Polyhedron 2024; 252:116880. [PMID: 38435834 PMCID: PMC10907011 DOI: 10.1016/j.poly.2024.116880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
The oxygen evolution reaction (OER) of water splitting is essential to electrochemical energy storage applications. While nickel electrodes are widely available heterogeneous OER catalysts, homogeneous nickel catalysts for OER are underexplored. Here we report two carbene-ligated nickel(II) complexes that are exceptionally robust and efficient homogeneous water oxidation catalysts. Remarkably, these novel nickel complexes can assemble a stable thin film onto a metal electrode through poly-imidazole bridges, making them supported heterogeneous electrochemical catalysts that are resilient to leaching and stripping. Unlike molecular catalysts and nanoparticle catalysts, such electrode-supported metal-complex catalysts for OER are rare and have the potential to inspire new designs. The electrochemical OER with our nickel-carbene catalysts exhibits excellent current densities with high efficiency, low Tafel slope, and useful longevity for a base metal catalyst. Our data show that imidazole carbene ligands stay bonded to the nickel(II) centers throughout the catalysis, which allows the facile oxygen evolution.
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Affiliation(s)
- Zhiyao Lu
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
| | - Debanjan Mitra
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
| | - Sri R. Narayan
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
| | - Travis J. Williams
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
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2
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Lee J, Soares G, Doty C, Park J, Hovey J, Schrader A, Han HS. Versatile Prepolymer Platform for Controlled Tailoring of Quantum Dot Surface Properties. ACS APPLIED MATERIALS & INTERFACES 2024; 16:15202-15214. [PMID: 38470982 PMCID: PMC11070902 DOI: 10.1021/acsami.4c00226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Quantum dots (QDs) hold immense promise for bioimaging, yet technical challenges in surface engineering limit their wider scientific use. We introduce poly(pentafluorophenyl acrylate) (PPFPA) as a user-friendly prepolymer platform for creating precisely controlled multidentate polymeric ligands for QD surface engineering, accessible to researchers without extensive synthetic expertise. PPFPA combines the benefits of both bottom-up and prepolymer approaches, offering minimal susceptibility to hydrolysis and side reactions for controlled chemical composition, along with simple synthetic procedures using commercially available reagents. Live cell imaging experiments highlighted a significant reduction in nonspecific binding when employing PPFPA, owing to its minimal hydrolysis, in contrast to ligands synthesized by using a conventional prepolymer prone to uncontrolled hydrolysis. This observation underscores the distinct advantage of our prepolymer system. Leveraging PPFPA, we synthesized biomolecule-conjugated QDs and performed QD-based immunofluorescence to detect a cytosolic protein. To effectively label cytosolic targets in such a dense and complex environment, probes must exhibit minimal nonspecific binding and be compact. As a result, QD-immunofluorescence has focused primarily on cell surface targets. By creating compact QD-F(ab')2, we sensitively detected alpha-tubulin with a ∼50-fold higher signal-to-noise ratio compared to organic dye-based labeling. PPFPA represents a versatile and accessible platform for tailoring QD surfaces, offering a pathway to realize the full potential of colloidal QDs in various scientific applications.
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Affiliation(s)
- JuYeon Lee
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- School of Biological and Environmental Studies, Millikin University, 1184 W. Main Street, Decatur, Illinois 62522, United States
| | - Giselle Soares
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Calvin Doty
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Joonhyuck Park
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- College of Medicine, The Catholic University of Korea, Seoul 06591, South Korea
| | - Jack Hovey
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Alex Schrader
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Hee-Sun Han
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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3
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Ma AX, Yu C, Zhang MY, Ao J, Liu HY, Zhang MQ, Sun QQ, Fu DD, Du L, Li J, Liu SL, Wang ZG, Pang DW. One-Step Dual-Color Labeling of Viral Envelope and Intraviral Genome with Quantum Dots Harnessing Virus Infection. NANO LETTERS 2024; 24:2544-2552. [PMID: 38349341 DOI: 10.1021/acs.nanolett.3c04600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Labeling the genome and envelope of a virus with multicolor quantum dots (QDs) simultaneously enables real-time monitoring of viral uncoating and genome release, contributing to our understanding of virus infection mechanisms. However, current labeling techniques require genetic modification, which alters the virus's composition and infectivity. To address this, we utilized the CRISPR/Cas13 system and a bioorthogonal metabolic method to label the Japanese encephalitis virus (JEV) genome and envelopes with different-colored QDs in situ. This technique allows one-step two-color labeling of the viral envelope and intraviral genome with QDs harnessing virus infection. In combination with single-virus tracking, we visualized JEV uncoating and genome release in real time near the endoplasmic reticulum of live cells. This labeling strategy allows for real-time visualization of uncoating and genome release at the single-virus level, and it is expected to advance the study of other viral infection mechanisms.
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Affiliation(s)
- Ai-Xin Ma
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Cong Yu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Ming-Yu Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Jian Ao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Hao-Yang Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Meng-Qian Zhang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Qian-Qian Sun
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Dan-Dan Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Lei Du
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Jing Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
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4
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Ao J, Ma AX, Li J, Wang CY, Fu DD, Du L, Yu C, Liu SL, Wang ZG, Pang DW. Real-Time Dissection of the Exosome Pathway for Influenza Virus Infection. ACS NANO 2024; 18:4507-4519. [PMID: 38270127 DOI: 10.1021/acsnano.3c11309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Exosomes play an important role in the spread of viral infections and immune escape. However, the exact ability and mechanisms by which exosomes produced during viral infections (vExos) infect host cells are still not fully understood. In this study, we developed a dual-color exosome labeling strategy that simultaneously labels the external and internal structures of exosomes with quantum dots to enable in situ monitoring of the transport process of vExos in live cells using the single-particle tracking technique. Our finding revealed that vExos contains the complete influenza A virus (IAV) genome and viral ribonucleoprotein complexes (vRNPs) proteins but lacks viral envelope proteins. Notably, these vExos have the ability to infect cells and produce progeny viruses. We also found that vExos are transported in three stages, slow-fast-slow, and move to the perinuclear region via microfilaments and microtubules. About 30% of internalized vExos shed the external membrane and release the internal vRNPs into the cytoplasm by fusion with endolysosomes. This study suggested that vExos plays a supporting role in IAV infection by assisting with IAV propagation in a virus-independent manner. It emphasizes the need to consider the infectious potential of vExos and draws attention to the potential risk of exosomes produced by viral infections.
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Affiliation(s)
- Jian Ao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Ai-Xin Ma
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Jing Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Chun-Yu Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Dan-Dan Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Lei Du
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Cong Yu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Dai-Wen Pang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
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5
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Jin L, Mao Z. Living virus-based nanohybrids for biomedical applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1923. [PMID: 37619605 DOI: 10.1002/wnan.1923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/26/2023]
Abstract
Living viruses characterized by distinctive biological functions including specific targeting, gene invasion, immune modulation, and so forth have been receiving intensive attention from researchers worldwide owing to their promising potential for producing numerous theranostic modalities against diverse pathological conditions. Nevertheless, concerns during applications, such as rapid immune clearance, altering immune activation modes, insufficient gene transduction efficiency, and so forth, highlight the crucial issues of excessive therapeutic doses and the associated biosafety risks. To address these concerns, synthetic nanomaterials featuring unique physical/chemical properties are frequently exploited as efficient drug delivery vehicles or treatments in biomedical domains. By constant endeavor, researchers nowadays can create adaptable living virus-based nanohybrids (LVN) that not only overcome the limitations of virotherapy, but also combine the benefits of natural substances and nanotechnology to produce novel and promising therapeutic and diagnostic agents. In this review, we discuss the fundamental physiochemical properties of the viruses, and briefly outline the basic construction methodologies of LVN. We then emphasize their distinct diagnostic and therapeutic performances for various diseases. Furthermore, we survey the foreseeable challenges and future perspectives in this interdisciplinary area to offer insights. This article is categorized under: Biology-Inspired Nanomaterials > Protein and Virus-Based Structures Therapeutic Approaches and Drug Discovery > Emerging Technologies.
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Affiliation(s)
- Lulu Jin
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Zhengwei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
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6
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Wang M, Zhou J, Fa S, Zhang Q. Synergetic Enhancement: Imprinted Magnetic Microspheres Based on the Thiol-ene-amine Conjugation and Metal Coordination for Selective Recognition of BSA. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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7
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Single-virus tracking with quantum dots in live cells. Nat Protoc 2023; 18:458-489. [PMID: 36451053 DOI: 10.1038/s41596-022-00775-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 08/16/2022] [Indexed: 12/05/2022]
Abstract
Single-virus tracking (SVT) offers the opportunity to monitor the journey of individual viruses in real time and to explore the interactions between viral and cellular structures in live cells, which can assist in characterizing the complex infection process and revealing the associated dynamic mechanisms. However, the low brightness and poor photostability of conventional fluorescent tags (e.g., organic dyes and fluorescent proteins) greatly limit the development of the SVT technique, and challenges remain in performing multicolor SVT over long periods of time. Owing to the outstanding photostability, high brightness and narrow emission with tunable color range of quantum dots (QDs), QD-based SVT (QSVT) enables us to follow the fate of individual viruses interacting with different cellular structures at the single-virus level for milliseconds to hours, providing more accurate and detailed information regarding viral infection in live cells. So far, the QSVT technique has yielded spectacular achievements in uncovering the mechanisms associated with virus entry, trafficking and egress. Here, we provide a detailed protocol for QSVT implementation using the viruses that we have previously studied systematically as an example. The specific procedures for performing QSVT experiments in live cells are described, including virus preparation, the QD labeling strategies, imaging approaches, image processing and data analysis. The protocol takes 1-2 weeks from the preparation of viruses and cellular specimens to image acquisition, and 1 d for image processing and data analysis.
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8
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Zheng J, Yue R, Yang R, Wu Q, Wu Y, Huang M, Chen X, Lin W, Huang J, Chen X, Jiang Y, Yang B, Liao Y. Visualization of Zika Virus Infection via a Light-Initiated Bio-Orthogonal Cycloaddition Labeling Strategy. Front Bioeng Biotechnol 2022; 10:940511. [PMID: 35875483 PMCID: PMC9305201 DOI: 10.3389/fbioe.2022.940511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Zika virus (ZIKV) is a re-emerging flavivirus that leads to devastating consequences for fetal development. It is crucial to visualize the pathogenicity activities of ZIKV ranging from infection pathways to immunity processes, but the accurate labeling of ZIKV remains challenging due to the lack of a reliable labeling technique. We introduce the photo-activated bio-orthogonal cycloaddition to construct a fluorogenic probe for the labeling and visualizing of ZIKV. Via a simple UV photoirradiation, the fluorogenic probes could be effectively labeled on the ZIKV. We demonstrated that it can be used for investigating the interaction between ZIKV and diverse cells and avoiding the autofluorescence phenomenon in traditional immunofluorescence assay. Thus, this bioorthogonal-enabled labeling strategy can serve as a promising approach to monitor and understand the interaction between the ZIKV and host cells.
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Affiliation(s)
- Judun Zheng
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Rui Yue
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Ronghua Yang
- Department of Burn and Plastic Surgery, Guangzhou First People’s Hospital, South China University of Technology, Guangzhou, China
| | - Qikang Wu
- Department of Clinical Laboratory, The First People’s Hospital of Foshan, Foshan, China
- Department of Burn Surgery & Department of Rheumatology, The First People’s Hospital of Foshan, Foshan, China
| | - Yunxia Wu
- Department of Clinical Laboratory, The First People’s Hospital of Foshan, Foshan, China
- Department of Burn Surgery & Department of Rheumatology, The First People’s Hospital of Foshan, Foshan, China
| | - Mingxing Huang
- Department of Infectious Disease, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Xu Chen
- Department of Infectious Disease, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Weiqiang Lin
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Jialin Huang
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Xiaodong Chen
- Department of Clinical Laboratory, The First People’s Hospital of Foshan, Foshan, China
- Department of Burn Surgery & Department of Rheumatology, The First People’s Hospital of Foshan, Foshan, China
- *Correspondence: Xiaodong Chen, ; Yideng Jiang, ; Bin Yang, ; Yuhui Liao,
| | - Yideng Jiang
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
- *Correspondence: Xiaodong Chen, ; Yideng Jiang, ; Bin Yang, ; Yuhui Liao,
| | - Bin Yang
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Xiaodong Chen, ; Yideng Jiang, ; Bin Yang, ; Yuhui Liao,
| | - Yuhui Liao
- Molecular Diagnosis and Treatment Center for Infectious Diseases, Dermatology Hospital, Southern Medical University, Guangzhou, China
- Department of Infectious Disease, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, China
- *Correspondence: Xiaodong Chen, ; Yideng Jiang, ; Bin Yang, ; Yuhui Liao,
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9
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Jayaweera NP, Dunlap JH, Ahmed F, Larison T, Buzoglu Kurnaz L, Stefik M, Pellechia PJ, Fountain AW, Greytak AB. Coordination of Quantum Dots in a Polar Solvent by Small-Molecule Imidazole Ligands. Inorg Chem 2022; 61:10942-10949. [PMID: 35797439 DOI: 10.1021/acs.inorgchem.2c01494] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Colloidal quantum dots (QDs) are attractive fluorophores for bioimaging and biomedical applications because of their favorable and tunable optoelectronic properties. In this study, the native hydrophobic ligand environment of oleate-capped sphalerite CdSe/ZnS core/shell QDs was quantitatively exchanged with a set of imidazole-bearing small-molecule ligands. Inductively coupled plasma-optical emission spectroscopy and 1H NMR were used to identify and quantify three different ligand exchange processes: Z-type dissociation of the Zn(oleate)2, L-type association of the imidazole, and X-type anionic exchange of oleate with Cl-, all of which contributed to the overall ligand exchange.
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Affiliation(s)
- Nuwanthaka P Jayaweera
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - John H Dunlap
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Fiaz Ahmed
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Taylor Larison
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Leman Buzoglu Kurnaz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Morgan Stefik
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Perry J Pellechia
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Augustus W Fountain
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Andrew B Greytak
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
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10
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Han Z, Vaidya RM, Arogundade OH, Ma L, Zahid MU, Sarkar S, Kuo CW, Selvin PR, Smith AM. Structural Design of Multidentate Copolymers as Compact Quantum Dot Coatings for Live-Cell Single-Particle Imaging. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:4621-4632. [PMID: 36968145 PMCID: PMC10038122 DOI: 10.1021/acs.chemmater.2c00498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Quantum dots (QDs) are a class of semiconductor nanocrystal used broadly as fluorescent emitters for analytical studies in the life sciences. These nanomaterials are particularly valuable for single-particle imaging and tracking applications in cells and tissues. An ongoing technological goal is to reduce the hydrodynamic size of QDs to enhance access to sterically hindered biological targets. Multidentate polymer coatings are a focus of these efforts and have resulted in compact and stable QDs with hydrodynamic diameters near 10 nm. New developments are needed to reach smaller sizes to further enhance transport through pores in cells and tissues. Here, we describe how structural characteristics of linear multidentate copolymers determine hydrodynamic size, colloidal stability, and biomolecular interactions of coated QDs. We tune copolymer composition, degree of polymerization, and hydrophilic group length, and coat polymers on CdSe and (core)shell (HgCdSe)CdZnS QDs. We find that a broad range of polymer structures and compositions yield stable colloidal dispersions; however, hydrodynamic size minimization and nonspecific binding resistance can only be simultaneously achieved within a narrow range of properties, requiring short polymers, balanced compositions, and small nanocrystals. In quantitative single-molecule imaging assays in synapses of live neurons, size reduction progressively increases labeling specificity of neurotransmitter receptors. Our findings provide a design roadmap to next-generation QDs with sizes approaching fluorescent protein labels that are the standard of many live-cell biomolecular studies.
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Affiliation(s)
- Zhiyuan Han
- Department of Materials Science and Engineering and Holonyak Micro and Nanotechnology Laboratory, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Rohit M Vaidya
- Center for Biophysics and Quantitative Biology, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Opeyemi H Arogundade
- Holonyak Micro and Nanotechnology Laboratory and Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Liang Ma
- Department of Materials Science and Engineering and Holonyak Micro and Nanotechnology Laboratory, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Mohammad U Zahid
- Holonyak Micro and Nanotechnology Laboratory and Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Suresh Sarkar
- Holonyak Micro and Nanotechnology Laboratory and Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Chia-Wei Kuo
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Paul R Selvin
- Center for Biophysics and Quantitative Biology, Center for the Physics of Living Cells, and Department of Physics, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States-8163
| | - Andrew M Smith
- Department of Materials Science and Engineering, Holonyak Micro and Nanotechnology Laboratory, Department of Bioengineering, Cancer Center at Illinois, and Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
- Carle Illinois College of Medicine, Urbana, Illinois 61801, United States
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11
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Chen M, Song Z, Yang X, Song Z, Luo X. Antifouling peptides combined with recognizing DNA probes for ultralow fouling electrochemical detection of cancer biomarkers in human bodily fluids. Biosens Bioelectron 2022; 206:114162. [PMID: 35272212 DOI: 10.1016/j.bios.2022.114162] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 12/21/2022]
Abstract
Herein, a universal strategy for the construction of highly sensitive and low fouling biosensors was proposed based on antifouling peptides conjugated with recognizing DNA probes. The peptide-DNA conjugate was formed through a reagent-free click reaction between a typical DNA aptamer modified with 5'-dibenzocyclooctyne (DBCO) and the designed antifouling peptide terminated with biotin and the azide group at its two ends. With the assistance of streptavidin (SA), the electrochemical biosensor was constructed via immobilization of the straight peptides and peptide-DNA conjugates in sequence onto the electrode surface modified with electrodeposited poly(3,4-ethylenedioxythiophene) (PEDOT) and gold nanoparticles (AuNPs). The prepared biosensor exhibited excellent antifouling performances in various human bodily fluids such as serum, sweat and urine, with a wide linear response range for CA125 from 0.01 U mL-1 to 1000 U mL-1, and a low limit of detection of 0.003 U mL-1. Combining the advantages of the antifouling peptide and recognizing DNA probe, this sensing strategy was capable of assaying CA125 in undiluted human serum, and it also offered a highly promising way for the development of different antifouling biosensors through the conjugation of antifouling peptides with various DNA probes.
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Affiliation(s)
- Min Chen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Zhen Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Xiqin Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Zhiling Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
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12
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Liu J, Su M, Chen X, Li Z, Fang Z, Yi L. Lipid-mediated biosynthetic labeling strategy for in vivo dynamic tracing of avian influenza virus infection. J Biomater Appl 2022; 36:1689-1699. [PMID: 34996310 DOI: 10.1177/08853282211063298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Monitoring the infection behavior of avian influenza viruses is crucial for understanding viral pathogenesis and preventing its epidemics among people. A number of viral labeling methods have been utilized for tracking viral infection process, but most of them are laborious or decreasing viral activity. Herein we explored a lipid biosynthetic labeling strategy for dynamical tracking the infection of H5N1 pseudotype virus (H5N1p) in host. Biotinylated lipids (biotinyl Cap-PE) were successfully incorporated into viral envelope when it underwent budding process by taking advantage of host cell-derived lipid metabolism. Biotin-H5N1p virus was effectively in situ-labeled with streptavidin-modified near-infrared quantum dots (NIR SA-QDs) using streptavidin-biotin conjugation with well-preserved virus activities. Dual-labeled imaging obviously shows that H5N1p viruses are primarily taken up in host cells via clathrin-mediated endocytosis. In animal models, Virus-conjugated NIR QDs displayed extraordinary photoluminescence, superior stability, and tissue penetration in lung, allowing us to long-term monitor respiratory viral infection in a noninvasive manner. Importantly, the co-localization of viral hemagglutinin protein and QDs in infected lung further conformed the dynamic infection process of virus in vivo. Hence, this in situ QD-labeling strategy based on cell natural biosynthesis provides a brand-new and reliable tool for noninvasion visualizing viral infection in body in a real-time manner.
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Affiliation(s)
- Junfang Liu
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, 70570Southern Medical University, Guangzhou, China
| | - Minhong Su
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, 70570Southern Medical University, Guangzhou, China
| | - Xin Chen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, 70570Southern Medical University, Guangzhou, China
| | - Zhongli Li
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, 70570Southern Medical University, Guangzhou, China
| | - Zekui Fang
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, 70570Southern Medical University, Guangzhou, China
| | - Li Yi
- Special Medical Service Center, Zhujiang Hospital, 70570Southern Medical University, Guangzhou, China
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13
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Wang ZG, Liu SL, Pang DW. Quantum Dots: A Promising Fluorescent Label for Probing Virus Trafficking. Acc Chem Res 2021; 54:2991-3002. [PMID: 34180662 DOI: 10.1021/acs.accounts.1c00276] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Recent research has highlighted the immense potential of the quantum dot (QD)-based single-virus tracking (SVT) technique in virology. In these experiments, the infection behaviors of single viruses or viral components, labeled with QDs, could be tracked on time scales of milliseconds to hours in host cells. The trajectories of individual viruses are reconstructed with nanometer accuracy, and the underlying dynamic information on virus infection can be extracted to uncover the infection mechanisms of viruses. Therefore, QD-based single-virus tracking (QSVT) is an exquisitely selective and powerful approach to investigating how viruses are internalized in host cells dynamically to release their genome for viral replication and assembly that ensure the completion of viral life cycles.QDs are better candidates than organic dyes and fluorescent proteins for virus labeling and subsequent SVT due to the following considerations: (i) the high brightness of QDs makes it possible to label a virus with sufficient brightness using very few QDs or even just one QD; (ii) the extraordinary photostability of QDs allows one to track the infection process long term and quantify low probability events; (iii) the color-tunable emission property of QDs ensures multicolor labeling of various components of a virus simultaneously; and (iv) the abundant surface ligands of QDs facilitate the conjugation of a virus with a variety of labeling strategies. Therefore, the photoproperties of QDs make it possible to perform multicolor long-term SVT experiments quantitatively. Nowadays, the QD-based SVT (QSVT) technique has made prodigious achievements in unraveling the entry, trafficking, and uncoating mechanisms of viruses. This fascinating technique can provide spatiotemporal dynamic information on the viral journey in unprecedented detail and has revolutionized our understanding of virus infection.In this Account, we first introduce the advantages and the limitations of conventional SVT in virological research and the unique features of QDs as labels in the SVT field. We subsequently focus on the principles and related methods of QSVT and the current state of QD chemistry and QD-based virus labeling that resolves many issues associated with the tracking of individual viruses in live cells. Then we emphasize some new findings by this technique in the study of infection mechanisms. Finally, we will provide our insights into future challenges on this topic. With this Account, we hope to further stimulate the development of QSVT with a combined effort from different disciplines and, more importantly, to accelerate the applications of QSVT in virological research.
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Affiliation(s)
- Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, P. R. China
| | - Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, P. R. China
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Center for New Organic Matter, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine, Nankai University, Tianjin 300071, P. R. China
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14
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Ma L, Geng J, Kolossov VL, Han Z, Pei Y, Lim SJ, Kilian KA, Smith AM. Antibody Self-Assembly Maximizes Cytoplasmic Immunostaining Accuracy of Compact Quantum Dots. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2021; 33:4877-4889. [PMID: 35221487 PMCID: PMC8880911 DOI: 10.1021/acs.chemmater.1c00164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Antibody conjugates of quantum dots (QDs) are expected to transform immunofluorescence staining by expanding multiplexed analysis and improving target quantification. Recently, a new generation of small QDs coated with multidentate polymers has improved QD labeling density in diverse biospecimens, but new challenges prevent their routine use. In particular, these QDs exhibit nonspecific binding to fixed cell nuclei and their antibody conjugates have random attachment orientations. This report describes four high-efficiency chemical approaches to conjugate antibodies to compact QDs. Methods include click chemistry and self-assembly through polyhistidine coordination, both with and without adaptor proteins that directionally orient antibodies. Specific and nonspecific labeling are independently analyzed after application of diverse blocking agent classes, and a new assay is developed to quantitatively measure intracellular labeling density based on microtubule stain connectivity. Results show that protein conjugation to the QD surface is required to simultaneously eliminate nonspecific binding and maintain antigen specificity. Of the four conjugation schemes, polyhistidine-based coordination of adaptor proteins with antibody self-assembly yields the highest intracellular staining density and the simplest conjugation procedure. Therefore, antibody and adaptor protein orientation, in addition to blocking optimization, are important determinants of labeling outcomes, insights that can inform translational development of these more compact nanomaterials.
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Affiliation(s)
- Liang Ma
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Junlong Geng
- Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Vladimir L Kolossov
- Holonyak Micro and Nanotechnology Laboratory and Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Zhiyuan Han
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yi Pei
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Sung Jun Lim
- Holonyak Micro and Nanotechnology Laboratory and Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Division of Nanotechnology, Dalseong-Gun 42988, Republic of Korea
| | - Kristopher A Kilian
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Holonyak Micro and Nanotechnology Laboratory and Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; School of Materials Science and Engineering and School of Chemistry, Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2052, Australia
| | - Andrew M Smith
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Holonyak Micro and Nanotechnology Laboratory, Department of Bioengineering, Carl R. Woese Institute for Genomic Biology, and Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States; Carle Illinois College of Medicine, Urbana, Illinois 61801, United States
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15
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Aljabali AAA, Al Zoubi MS, Al-Batayneh KM, Pardhi DM, Dua K, Pal K, Tambuwala MM. Innovative Applications of Plant Viruses in Drug Targeting and Molecular Imaging- A Review. Curr Med Imaging 2021; 17:491-506. [PMID: 33030133 DOI: 10.2174/1573405616666201007160243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/13/2020] [Accepted: 08/06/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Nature had already engineered various types of nanoparticles (NPs), especially viruses, which can deliver their cargo to the host/targeted cells. The ability to selectively target specific cells offers a significant advantage over the conventional approach. Numerous organic NPs, including native protein cages, virus-like particles, polymeric saccharides, and liposomes, have been used for the preparation of nanoparticles. Such nanomaterials have demonstrated better performance as well as improved biocompatibility, devoid of side effects, and stable without any deterioration. OBJECTIVE This review discusses current clinical and scientific research on naturally occurring nanomaterials. It also illustrates and updates the tailor-made approaches for selective delivery and targeted medications that require a high-affinity interconnection to the targeted cells. METHODS A comprehensive search was performed using keywords for viral nanoparticles, viral particles for drug delivery, viral nanoparticles for molecular imaging, theranostics applications of viral nanoparticles and plant viruses in nanomedicine. We searched on Google Scholar, PubMed, Springer, Medline, and Elsevier from 2000 till date and by the bibliographic review of all identified articles. RESULTS The findings demonstrated that structures dependent on nanomaterials might have potential applications in diagnostics, cell marking, comparing agents (computed tomography and magnetic resonance imaging), and antimicrobial drugs, as well as drug delivery structures. However, measures should be taken in order to prevent or mitigate, in pharmaceutical or medical applications, the toxic impact or incompatibility of nanoparticle-based structures with biological systems. CONCLUSION The review provided an overview of the latest advances in nanotechnology, outlining the difficulties and the advantages of in vivo and in vitro structures that are focused on a specific subset of the natural nanomaterials.
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Affiliation(s)
- Alaa A A Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Yarmouk University - Faculty of Pharmacy, Irbid, Jordan
| | - Mazhar S Al Zoubi
- Department of Basic Medical Sciences, Yarmouk University - Faculty of Medicine, Irbid, Jordan
| | - Khalid M Al-Batayneh
- Department of Biological Sciences, Yarmouk University - Faculty of Science, Irbid, Jordan
| | - Dinesh M Pardhi
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, FL-70211, Kuopio, Finland
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology, Sydney, Australia
| | - Kaushik Pal
- Federal University of Rio de Janeiro, Cidade Universitaria, Rio de Janeiro-RJ, 21941-901, Brazil
| | - Murtaza M Tambuwala
- School of Pharmacy and Pharmaceutical Science, Ulster University, Coleraine, County Londonderry, BT52 1SA, Northern Ireland, United Kingdom
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16
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Kim DM, Park JS, Jung SW, Yeom J, Yoo SM. Biosensing Applications Using Nanostructure-Based Localized Surface Plasmon Resonance Sensors. SENSORS (BASEL, SWITZERLAND) 2021; 21:3191. [PMID: 34064431 PMCID: PMC8125509 DOI: 10.3390/s21093191] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 01/06/2023]
Abstract
Localized surface plasmon resonance (LSPR)-based biosensors have recently garnered increasing attention due to their potential to allow label-free, portable, low-cost, and real-time monitoring of diverse analytes. Recent developments in this technology have focused on biochemical markers in clinical and environmental settings coupled with advances in nanostructure technology. Therefore, this review focuses on the recent advances in LSPR-based biosensor technology for the detection of diverse chemicals and biomolecules. Moreover, we also provide recent examples of sensing strategies based on diverse nanostructure platforms, in addition to their advantages and limitations. Finally, this review discusses potential strategies for the development of biosensors with enhanced sensing performance.
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Affiliation(s)
- Dong Min Kim
- Center for Applied Life Science, Hanbat National University, Daejeon 34158, Korea;
| | - Jong Seong Park
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
| | - Seung-Woon Jung
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
| | - Jinho Yeom
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
| | - Seung Min Yoo
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea; (J.S.P.); (S.-W.J.); (J.Y.)
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17
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Singh AK, Yadav AN, Srivastav S, Jaiswal RK, Srivastava A, Mondal AC, Singh K. CdSe- Reduced graphene oxide nanocomposite toxicity alleviation via V 2O 5 shell formation over CdSe core: in vivo and in vitro studies. NANOTECHNOLOGY 2020; 31:415101. [PMID: 32311687 DOI: 10.1088/1361-6528/ab8b0f] [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
The present article demonstrates the synthesis of the nanocomposite of reduced graphene oxide (rGO) with CdSe and CdSe/V2O5 core/shell quantum dots by a two-step facile synthesis approach and subsequently studies their relative biocompatibility in different cells. Various characterization techniques have been applied including transmission electron microscopy (TEM), an x-ray diffractometer (XRD) and Raman spectroscopy to confirm the successful formation of CdSe-rGO and CdSe/V2O5-rGO nanocomposites. The average sizes of CdSe and CdSe/V2O5 QDs have found to be ∼3 and 5.5 nm, respectively with a good dispersion over the surface of rGO nanosheets. A crystal phase change has occurred during the formation of the V2O5 shell over the surface of CdSe QDs and confirmed through XRD. Raman spectroscopy has shown some useful insight of the surface state of CdSe and consequent changes in the surface with V2O5 shell growth. Further, MTT and cell growth assays have been performed to analyze their biocompatibility in A549 and Hela cells with various concentrations of as-synthesized materials. Our results demonstrate the toxicity of CdSe-rGO nanocomposite to be substantially reduced by the growth of the V2O5 shell. The in vivo studies in Drosophila show a remarkable decrease in the reactive oxygen species (ROS) and apoptosis levels for a CdSe/V2O5-rGO composite as compared to a CdSe-rGO nanocomposite, which paves a promising pathway for the CdSe/V2O5-rGO nanocomposite to be used as an efficient biocompatible material.
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Affiliation(s)
- Ashwani Kumar Singh
- Center for Semiconductor and Nanotechnology Components, State University of Campinas, UNICAMP, Sao Paulo, Brazil. School of Physical Sciences, Jawaharlal Nehru University, New Delhi, India
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18
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Darwish GH, Asselin J, Tran MV, Gupta R, Kim H, Boudreau D, Algar WR. Fully Self-Assembled Silica Nanoparticle-Semiconductor Quantum Dot Supra-Nanoparticles and Immunoconjugates for Enhanced Cellular Imaging by Microscopy and Smartphone Camera. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33530-33540. [PMID: 32672938 DOI: 10.1021/acsami.0c09553] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
There is a growing need for brighter luminescent materials to improve the detection and imaging of biomarkers. Relevant contexts include low-abundance biomarkers and technology-limited applications, where an example of the latter is the emerging use of smartphones and other nonoptimal but low-cost and portable devices for point-of-care diagnostics. One approach to achieving brighter luminescent materials is incorporating multiple copies of a luminescent material into a larger supra-nanoparticle (supra-NP) assembly. Here, we present a facile method for the preparation and immunoconjugation of supra-NP assemblies (SiO2@QDs) that comprised many quantum dots (QDs) around a central silica nanoparticle (SiO2 NP). The assembly was entirely driven by spontaneous affinity interactions between the constituent materials, which included imidazoline-functionalized silica nanoparticles, ligand-coated QDs, imidazole-functionalized dextran, and tetrameric antibody complexes (TACs). The physical and optical properties of the SiO2@QDs were characterized at both the ensemble and single-particle levels. Notably, the optical properties of the QDs were preserved upon assembly into supra-NPs, and single SiO2@QDs were approximately an order of magnitude brighter than single QDs and nonblinking. In proof-of-concept applications, including selective immunolabeling of breast cancer cells, the SiO2@QDs provided higher sensitivity and superior signal-to-background ratios whether using research-grade fluorescence microscopy or smartphone-based imaging. Overall, the SiO2@QDs are promising materials for enhanced bioanalysis and imaging.
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Affiliation(s)
- Ghinwa H Darwish
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jérémie Asselin
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
- Département de chimie et Centre d'optique, photonique et laser (COPL), Université Laval, Québec G1V 0A6, Canada
| | - Michael V Tran
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Rupsa Gupta
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Hyungki Kim
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Denis Boudreau
- Département de chimie et Centre d'optique, photonique et laser (COPL), Université Laval, Québec G1V 0A6, Canada
| | - W Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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19
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Abstract
Quantum dots (QDs) possess optical properties of superbright fluorescence, excellent photostability, narrow emission spectra, and optional colors. Labeled with QDs, single molecules/viruses can be rapidly and continuously imaged for a long time, providing more detailed information than when labeled with other fluorophores. While they are widely used to label proteins in single-molecule-tracking studies, QDs have rarely been used to study virus infection, mainly due to a lack of accepted labeling strategies. Here, we report a general method to mildly and readily label enveloped viruses with QDs. Lipid-biotin conjugates were used to recognize and mark viral lipid membranes, and streptavidin-QD conjugates were used to light them up. Such a method allowed enveloped viruses to be labeled in 2 h with specificity and efficiency up to 99% and 98%, respectively. The intact morphology and the native infectivity of viruses were preserved. With the aid of this QD labeling method, we lit wild-type and mutant Japanese encephalitis viruses up, tracked their infection in living Vero cells, and found that H144A and Q258A substitutions in the envelope protein did not affect the virus intracellular trafficking. The lipid-specific QD labeling method described in this study provides a handy and practical tool to readily "see" the viruses and follow their infection, facilitating the widespread use of single-virus tracking and the uncovering of complex infection mechanisms.IMPORTANCE Virus infection in host cells is a complex process comprising a large number of dynamic molecular events. Single-virus tracking is a versatile technique to study these events. To perform this technique, viruses must be fluorescently labeled to be visible to fluorescence microscopes. The quantum dot is a kind of fluorescent tag that has many unique optical properties. It has been widely used to label proteins in single-molecule-tracking studies but rarely used to study virus infection, mainly due to the lack of an accepted labeling method. In this study, we developed a lipid-specific method to readily, mildly, specifically, and efficiently label enveloped viruses with quantum dots by recognizing viral envelope lipids with lipid-biotin conjugates and recognizing these lipid-biotin conjugates with streptavidin-quantum dot conjugates. It is not only applicable to normal viruses, but also competent to label the key protein-mutated viruses and the inactivated highly virulent viruses, providing a powerful tool for single-virus tracking.
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Kubo K, Yoshitake M, Hoshino N, Noro S, Akutagawa T, Nakamura T. Stable Ferromagnetic Crystal of Two‐Dimensional Manganese‐Chromium Oxalate with Supramolecular Cation. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kazuya Kubo
- Graduate School of Material Science University of Hyogo 3‐2‐1, Kouto, Kamigori‐cho 678‐1297 Akou‐gun Hyogo Japan
| | - Masashi Yoshitake
- Graduate School of Environmental Science Hokkaido University N10W5 Kita‐ku 060‐0810 Sapporo Hokkaido Japan
| | - Norihisa Hoshino
- Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2‐1‐1 Katahira, Aoba‐ku 980‐8577 Sendai Miyagi Japan
| | - Shin‐ichiro Noro
- Faculty of Environmental Earth Science Hokkaido University N10W5 Kita‐ku 060‐0810 Sapporo Hokkaido Japan
| | - Tomoyuki Akutagawa
- Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2‐1‐1 Katahira, Aoba‐ku 980‐8577 Sendai Miyagi Japan
| | - Takayoshi Nakamura
- Research Institute for Electronic Science Hokkaido University N20W10 Kita‐Ku 001‐0020 Sapporo Hokkaido Japan
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21
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Wang W, van Niekerk EA, Zhang Y, Du L, Ji X, Wang S, Baker JD, Groeniger K, Raymo FM, Mattoussi H. Compact, “Clickable” Quantum Dots Photoligated with Multifunctional Zwitterionic Polymers for Immunofluorescence and In Vivo Imaging. Bioconjug Chem 2020; 31:1497-1509. [DOI: 10.1021/acs.bioconjchem.0c00169] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wentao Wang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Erna A. van Niekerk
- Department of Neurosciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Yang Zhang
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Liang Du
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Xin Ji
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Sisi Wang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - James D. Baker
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Kimberly Groeniger
- Department of Neurosciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Françisco M. Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
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22
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Han Z, Sarkar S, Smith AM. Zwitterion and Oligo(ethylene glycol) Synergy Minimizes Nonspecific Binding of Compact Quantum Dots. ACS NANO 2020; 14:3227-3241. [PMID: 32105448 PMCID: PMC7321848 DOI: 10.1021/acsnano.9b08658] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Quantum dots (QDs) are a class of fluorescent nanocrystals in development as labels for molecular imaging in cells and tissues. Recently, coatings for quantum dots based on multidentate polymers have improved labeling performance in a range of bioanalytical applications, primarily due to reduced probe hydrodynamic size. Now, an ongoing challenge is to eliminate nonspecific binding between these small probes and cellular components that mask specifically labeled molecules. Here, we describe insights into controlling and minimizing intermolecular interactions governing nonspecific binding using multidentate polymers with tunable hydrophilic functional groups that are cationic, anionic, zwitterionic (ZW), or nonionic (oligoethylene glycol; OEG). By fixing surface-binding groups and polymer length, coated colloids have similar sizes but diverse physicochemical properties. We measure binding to globular proteins, fixed cells, and living cells and observe a substantial improvement in nonspecific binding resistance when surfaces are functionalized with a combination of ZW and OEG. The independent underlying effects of counterion adsorption and flexibility appear to synergistically resist adsorption when combined, particularly for fixed cells enriched in both charged and hydrophobic moieties. We further show that ZW-OEG QDs are stable under diverse conditions and can be self-assembled with antibodies to specifically label surface antigens on living cells and cytoplasmic proteins in fixed cells. This surface engineering strategy can be adopted across the diverse range of colloidal materials currently in use and in development for biomedical applications to optimize their molecular labeling specificity.
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Affiliation(s)
- Zhiyuan Han
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Suresh Sarkar
- Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Andrew M Smith
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Carle Illinois College of Medicine, Urbana, Illinois 61801, United States
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23
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Wang F, Pan H, Yao X, He H, Liu L, Luo Y, Zhou H, Zheng M, Zhang R, Ma Y, Cai L. Bioorthogonal Metabolic Labeling Utilizing Protein Biosynthesis for Dynamic Visualization of Nonenveloped Enterovirus 71 Infection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:3363-3370. [PMID: 31845579 DOI: 10.1021/acsami.9b17412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bioorthogonal metabolic labeling through the endogenous cellular metabolic pathways (e.g., phospholipid and sugar) is a promising approach for effectively labeling live viruses. However, it remains a big challenge to label nonenveloped viruses due to lack of host-derived envelopes. Herein, a novel bioorthogonal labeling strategy is developed utilizing protein synthesis pathway to label and trace nonenveloped viruses. The results show that l-azidohomoalanine (Aha), an azido derivative of methionine, is more effective than azido sugars to introduce azido motifs into viral capsid proteins by substituting methionine residues during viral protein biosynthesis and assembly. The azide-modified EV71 (N3-EV71) particles are then effectively labeled with dibenzocyclooctyl (DBCO)-functionalized fluorescence probes through an in situ bioorthogonal reaction with well-preserved viral infectivity. Dual-labeled imaging clearly clarifies that EV71 virions primarily bind to scavenger receptors and are internalized through clathrin-mediated endocytosis. The viral particles are then transported into early and late endosomes where viral RNA is released in a low-pH dependent manner at about 70 min postinfection. These results first reveal viral trafficking and uncoating mechanisms, which may shed light on the pathogenesis of EV71 infection and contribute to antiviral drug discovery.
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Affiliation(s)
- Fangfang Wang
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
| | - Hong Pan
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
| | - Xiangjie Yao
- Shenzhen Centre for Disease Control and Prevention , Shenzhen 518100 , P. R. China
| | - Huamei He
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
| | - Lanlan Liu
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P.R. China
| | - Yingmei Luo
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
| | - Haimei Zhou
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
| | - Mingbin Zheng
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
| | - Renli Zhang
- Shenzhen Centre for Disease Control and Prevention , Shenzhen 518100 , P. R. China
| | - Yifan Ma
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
- HRYZ Biotech Co. , Shenzhen 518057 , P. R. China
| | - Lintao Cai
- Guangdong Key Laboratory of Nanomedicine, CAS-HK Joint Lab of Biomaterials, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations , Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055 , P. R. China
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24
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Liu SL, Wang ZG, Xie HY, Liu AA, Lamb DC, Pang DW. Single-Virus Tracking: From Imaging Methodologies to Virological Applications. Chem Rev 2020; 120:1936-1979. [PMID: 31951121 PMCID: PMC7075663 DOI: 10.1021/acs.chemrev.9b00692] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Uncovering
the mechanisms of virus infection and assembly is crucial
for preventing the spread of viruses and treating viral disease. The
technique of single-virus tracking (SVT), also known as single-virus
tracing, allows one to follow individual viruses at different parts
of their life cycle and thereby provides dynamic insights into fundamental
processes of viruses occurring in live cells. SVT is typically based
on fluorescence imaging and reveals insights into previously unreported
infection mechanisms. In this review article, we provide the readers
a broad overview of the SVT technique. We first summarize recent advances
in SVT, from the choice of fluorescent labels and labeling strategies
to imaging implementation and analytical methodologies. We then describe
representative applications in detail to elucidate how SVT serves
as a valuable tool in virological research. Finally, we present our
perspectives regarding the future possibilities and challenges of
SVT.
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Affiliation(s)
- Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China.,Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry , China University of Geosciences , Wuhan 430074 , P. R. China
| | - Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China
| | - Hai-Yan Xie
- School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - An-An Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China
| | - Don C Lamb
- Physical Chemistry, Department of Chemistry, Center for Nanoscience (CeNS), and Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM) , Ludwig-Maximilians-Universität , München , 81377 , Germany
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China.,College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology , Wuhan University , Wuhan 430072 , P. R. China
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25
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Compact Quantum Dots for Quantitative Cytology. Methods Mol Biol 2019. [PMID: 31565773 DOI: 10.1007/978-1-4939-9831-9_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
In this chapter, we describe the preparation of fluorescent quantum dots for imaging and measuring protein expression in cells. Quantum dots are nanocrystals that have numerous advantages for biomolecular detection compared with organic dyes and fluorescent proteins, but their large size has been a limiting factor. We describe the synthesis of nanoparticles smaller than 10 nm (smaller than an antibody), their attachment to monoclonal antibodies through click chemistry, characterization of the conjugates, and use for labeling of cellular antigens. We further discuss the unique advantages and challenges associated with this approach compared with conventional immunofluorescence techniques.
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26
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Wagner AM, Knipe JM, Orive G, Peppas NA. Quantum dots in biomedical applications. Acta Biomater 2019; 94:44-63. [PMID: 31082570 PMCID: PMC6642839 DOI: 10.1016/j.actbio.2019.05.022] [Citation(s) in RCA: 169] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/10/2019] [Accepted: 05/08/2019] [Indexed: 01/14/2023]
Abstract
Semiconducting nanoparticles, more commonly known as quantum dots, possess unique size and shape dependent optoelectronic properties. In recent years, these unique properties have attracted much attention in the biomedical field to enable real-time tissue imaging (bioimaging), diagnostics, single molecule probes, and drug delivery, among many other areas. The optical properties of quantum dots can be tuned by size and composition, and their high brightness, resistance to photobleaching, multiplexing capacity, and high surface-to-volume ratio make them excellent candidates for intracellular tracking, diagnostics, in vivo imaging, and therapeutic delivery. We discuss recent advances and challenges in the molecular design of quantum dots are discussed, along with applications of quantum dots as drug delivery vehicles, theranostic agents, single molecule probes, and real-time in vivo deep tissue imaging agents. We present a detailed discussion of the biodistribution and toxicity of quantum dots, and highlight recent advances to improve long-term stability in biological buffers, increase quantum yield following bioconjugation, and improve clearance from the body. Last, we present an outlook on future challenges and strategies to further advance translation to clinical application. STATEMENT OF SIGNIFICANCE: Semiconducting nanoparticles, commonly known as quantum dots, possess unique size and shape dependent electrical and optical properties. In recent years, they have attracted much attention in biomedical imaging to enable diagnostics, single molecule probes, and real-time imaging of tumors. This review discusses recent advances and challenges in the design of quantum dots, and highlights how these strategies can further advance translation to clinical applications.
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Affiliation(s)
- Angela M Wagner
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA; Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX, USA
| | - Jennifer M Knipe
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA; Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX, USA
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain; University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
| | - Nicholas A Peppas
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA; Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, TX, USA; Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA; Department of Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, TX, USA; Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, TX, USA; Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA.
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27
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Ratnatilaka Na Bhuket P, Luckanagul JA, Rojsitthisak P, Wang Q. Chemical modification of enveloped viruses for biomedical applications. Integr Biol (Camb) 2019; 10:666-679. [PMID: 30295307 DOI: 10.1039/c8ib00118a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The unique characteristics of enveloped viruses including nanometer size, consistent morphology, narrow size distribution, versatile functionality and biocompatibility have attracted attention from scientists to develop enveloped viruses for biomedical applications. The biomedical applications of the viral-based nanoparticles include vaccine development, imaging and targeted drug delivery. The modification of the structural elements of enveloped viruses is necessary for the desired functions. Here, we review the chemical approaches that have been utilized to develop bionanomaterials based on enveloped viruses for biomedical applications. We first provide an overview of the structures of enveloped viruses which are composed of nucleic acids, structural and functional proteins, glycan residues and lipid envelope. The methods for modification, including direct conjugation, metabolic incorporation of functional groups and peptide tag insertion, are described based on the biomolecular types of viral components. Layer-by-layer technology is also included in this review to illustrate the non-covalent modification of enveloped viruses. Then, we further elaborate the applications of chemically-modified enveloped viruses, virus-like particles and viral subcomponents in biomedical research.
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Affiliation(s)
- Pahweenvaj Ratnatilaka Na Bhuket
- Biomedicinal Chemistry Program, Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok, 10330, Thailand
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28
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Sobiech M, Bujak P, Luliński P, Pron A. Semiconductor nanocrystal-polymer hybrid nanomaterials and their application in molecular imprinting. NANOSCALE 2019; 11:12030-12074. [PMID: 31204762 DOI: 10.1039/c9nr02585e] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Quantum dots (QDs) are attractive semiconductor fluorescent nanomaterials with remarkable optical and electrical properties. The broad absorption spectra and high stability of QD transducers are advantageous for sensing and bioimaging. Molecular imprinting is a technique for manufacturing synthetic polymeric materials with a high recognition ability towards a target analyte. The high selectivity of the molecularly imprinted polymers (MIPs) is a result of the fabrication process based on the template-tailored polymerization of functional monomers. The three-dimensional cavities formed in the polymer network can serve as the recognition elements of sensors because of their specificity and stability. Appending specific molecularly imprinted layers to QDs is a promising strategy to enhance the stability, sensitivity, and selective fluorescence response of the resulting sensors. By merging the benefits of MIPs and QDs, inventive optical sensors are constructed. In this review, the recent synthetic strategies used for the fabrication of QD nanocrystals emphasizing various approaches to effective functionalization in aqueous environments are discussed followed by a detailed presentation of current advances in QD conjugated MIPs (MIP-QDs). Frontiers in manufacturing of specific imprinted layers of these nanomaterials are presented and factors affecting the specific behaviour of an MIP shell are identified. Finally, current limitations of MIP-QDs are defined and prospects are outlined to amplify the capability of MIP-QDs in future sensing.
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Affiliation(s)
- Monika Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Piotr Bujak
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland.
| | - Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Adam Pron
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland.
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29
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Hong ZY, Zhang ZL, Tang B, Ao J, Wang C, Yu C, Pang DW. Equipping Inner Central Components of Influenza A Virus with Quantum Dots. Anal Chem 2018; 90:14020-14028. [DOI: 10.1021/acs.analchem.8b03995] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zheng-Yuan Hong
- Key Laboratory
of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key
Laboratory of Virology, The Institute for Advanced Studies, and Wuhan
Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
- PET-CT/MRI Center, Molecular Imaging Center, Renmin Hospital of Wuhan University, Wuhan 430060, People's Republic of China
| | - Zhi-Ling Zhang
- Key Laboratory
of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key
Laboratory of Virology, The Institute for Advanced Studies, and Wuhan
Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Bo Tang
- Key Laboratory
of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key
Laboratory of Virology, The Institute for Advanced Studies, and Wuhan
Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Jian Ao
- Key Laboratory
of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key
Laboratory of Virology, The Institute for Advanced Studies, and Wuhan
Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Chuan Wang
- Key Laboratory
of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key
Laboratory of Virology, The Institute for Advanced Studies, and Wuhan
Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Cong Yu
- Key Laboratory
of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key
Laboratory of Virology, The Institute for Advanced Studies, and Wuhan
Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
| | - Dai-Wen Pang
- Key Laboratory
of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key
Laboratory of Virology, The Institute for Advanced Studies, and Wuhan
Institute of Biotechnology, Wuhan University, Wuhan 430072, People’s Republic of China
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30
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31
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Wu Y, Chen Z, Zhang P, Zhou L, Jiang T, Chen H, Gong P, Dimitrov DS, Cai L, Zhao Q. Recombinant-fully-human-antibody decorated highly-stable far-red AIEdots for in vivo HER-2 receptor-targeted imaging. Chem Commun (Camb) 2018; 54:7314-7317. [PMID: 29904764 DOI: 10.1039/c8cc03037e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We developed highly bright and stable far-red emissive AIEdots by using a new kind of click-functional PEG grafted amphiphilic polymer to coat hydrophobic AIE-active polymers (PDFDP). Furthermore, an anti-HER2 recombinant fully human antibody was produced and conjugated on the AIEdots via metal-free click chemistry to fabricate in vivo tumor-targeting nanoprobes.
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Affiliation(s)
- Yayun Wu
- Guangdong Key Laboratory of Nanomedicine, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations, CAS Key Laboratory of Health Informatics, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.
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32
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Witte R, Andriasyan V, Georgi F, Yakimovich A, Greber UF. Concepts in Light Microscopy of Viruses. Viruses 2018; 10:E202. [PMID: 29670029 PMCID: PMC5923496 DOI: 10.3390/v10040202] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/12/2018] [Accepted: 04/16/2018] [Indexed: 12/11/2022] Open
Abstract
Viruses threaten humans, livestock, and plants, and are difficult to combat. Imaging of viruses by light microscopy is key to uncover the nature of known and emerging viruses in the quest for finding new ways to treat viral disease and deepening the understanding of virus–host interactions. Here, we provide an overview of recent technology for imaging cells and viruses by light microscopy, in particular fluorescence microscopy in static and live-cell modes. The review lays out guidelines for how novel fluorescent chemical probes and proteins can be used in light microscopy to illuminate cells, and how they can be used to study virus infections. We discuss advantages and opportunities of confocal and multi-photon microscopy, selective plane illumination microscopy, and super-resolution microscopy. We emphasize the prevalent concepts in image processing and data analyses, and provide an outlook into label-free digital holographic microscopy for virus research.
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Affiliation(s)
- Robert Witte
- Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
| | - Vardan Andriasyan
- Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
| | - Fanny Georgi
- Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
| | - Artur Yakimovich
- MRC Laboratory for Molecular Cell Biology, University College London, Gower St., London WC1E 6BT, UK.
| | - Urs F Greber
- Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
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33
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Shen J, Zhang W, Qi R, Mao ZW, Shen H. Engineering functional inorganic-organic hybrid systems: advances in siRNA therapeutics. Chem Soc Rev 2018; 47:1969-1995. [PMID: 29417968 PMCID: PMC5861001 DOI: 10.1039/c7cs00479f] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cancer treatment still faces a lot of obstacles such as tumor heterogeneity, drug resistance and systemic toxicities. Beyond the traditional treatment modalities, exploitation of RNA interference (RNAi) as an emerging approach has immense potential for the treatment of various gene-caused diseases including cancer. The last decade has witnessed enormous research and achievements focused on RNAi biotechnology. However, delivery of small interference RNA (siRNA) remains a key challenge in the development of clinical RNAi therapeutics. Indeed, functional nanomaterials play an important role in siRNA delivery, which could overcome a wide range of sequential physiological and biological obstacles. Nanomaterial-formulated siRNA systems have potential applications in protection of siRNA from degradation, improving the accumulation in the target tissues, enhancing the siRNA therapy and reducing the side effects. In this review, we explore and summarize the role of functional inorganic-organic hybrid systems involved in the siRNA therapeutic advancements. Additionally, we gather the surface engineering strategies of hybrid systems to optimize for siRNA delivery. Major progress in the field of inorganic-organic hybrid platforms including metallic/non-metallic cores modified with organic shells or further fabrication as the vectors for siRNA delivery is discussed to give credit to the interdisciplinary cooperation between chemistry, pharmacy, biology and medicine.
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Affiliation(s)
- Jianliang Shen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China. and School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, 325035, China and Wenzhou Institute of Biomaterials and Engineering, Chinese Academy of Science, Wenzhou, 325001, China and Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas 77030, USA.
| | - Wei Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Ruogu Qi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas 77030, USA.
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China. and Department of Applied Chemistry, South China Agricultural University, Guangzhou 510642, China
| | - Haifa Shen
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas 77030, USA. and Department of Cell and Developmental Biology, Weill Cornell Medicine, New York, NY10065, USA
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34
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Yan C, Wang T. A new view for nanoparticle assemblies: from crystalline to binary cooperative complementarity. Chem Soc Rev 2018; 46:1483-1509. [PMID: 28059420 DOI: 10.1039/c6cs00696e] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Studies on nanoparticle assemblies and their applications have been research frontiers in nanoscience in the past few decades and remarkable progress has been made in the synthetic strategies and techniques. Recently, the design and fabrication of the nanoparticle-based nanomaterials or nanodevices with integrated and enhanced properties compared to those of the individual components have gradually become the mainstream. However, a systematic solution to provide a big picture for future development and guide the investigation of different aspects of the study of nanoparticle assemblies remains a challenge. The binary cooperative complementary principle could be an answer. The binary cooperative complementary principle is a universal discipline and can describe the fundamental properties of matter from the subatomic particles to the universe. According to its definition, a variety of nanoparticle assemblies, which represent the cutting-edge work in the nanoparticle studies, are naturally binary cooperative complementary materials. Therefore, the introduction of the binary cooperative complementary principle in the studies of nanoparticle assemblies could provide a unique perspective for reviewing this field and help in the design and fabrication of novel functional nanoparticle assemblies.
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Affiliation(s)
- Cong Yan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China. and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China. and University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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35
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Zhang H, Chen J, Xiao C, Tao Y, Wang X. A Multifunctional Polypeptide via Ugi Reaction for Compact and Biocompatible Quantum Dots with Efficient Bioconjugation. Bioconjug Chem 2018; 29:1335-1343. [DOI: 10.1021/acs.bioconjchem.8b00072] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Hang Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Jinlong Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, People’s Republic of China
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36
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Du T, Liang J, Dong N, Lu J, Fu Y, Fang L, Xiao S, Han H. Glutathione-Capped Ag 2S Nanoclusters Inhibit Coronavirus Proliferation through Blockage of Viral RNA Synthesis and Budding. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4369-4378. [PMID: 29337529 DOI: 10.1021/acsami.7b13811] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Development of novel antiviral reagents is of great importance for the control of virus spread. Here, Ag2S nanoclusters (NCs) were proved for the first time to possess highly efficient antiviral activity by using porcine epidemic diarrhea virus (PEDV) as a model of coronavirus. Analyses of virus titers showed that Ag2S NCs significantly suppressed the infection of PEDV by about 3 orders of magnitude at the noncytotoxic concentration at 12 h postinfection, which was further confirmed by the expression of viral proteins. Mechanism investigations indicated that Ag2S NCs treatment inhibits the synthesis of viral negative-strand RNA and viral budding. Ag2S NCs treatment was also found to positively regulate the generation of IFN-stimulating genes (ISGs) and the expression of proinflammation cytokines, which might prevent PEDV infection. This study suggest the novel underlying of Ag2S NCs as a promising therapeutic drug for coronavirus.
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Affiliation(s)
- Ting Du
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
| | - Jiangong Liang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
| | - Nan Dong
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
| | - Jian Lu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
| | - Yiying Fu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
| | - Liurong Fang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
| | - Shaobo Xiao
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, and ‡State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan 430070, P. R. China
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Liu R, Zhao J, Han G, Zhao T, Zhang R, Liu B, Liu Z, Zhang C, Yang L, Zhang Z. Click-Functionalized SERS Nanoprobes with Improved Labeling Efficiency and Capability for Cancer Cell Imaging. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38222-38229. [PMID: 28920430 DOI: 10.1021/acsami.7b10409] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Precise identification and detection of cancer cells using nanoparticle probes are critically important for early cancer diagnosis and subsequent therapy. We herein develop novel folate receptor (FR)-targeted surface-enhanced Raman scattering (SERS) nanoprobes for cancer cell imaging based on a click coupling strategy. A Raman-active derivative (5,5'-dithiobis(2-nitrobenzoic acid)-N3 (DNBA-N3)) is designed with a disulfide bond for covalently anchoring to the surface of hollow gold nanoparticles (HAuNPs) and a terminal azide group for facilitating highly efficient conjugation with the bioligand. Modification of HAuNPs with DNBA-N3 yields monolayer coverage of Raman labels absorbed on the nanoparticle surface (HAuNP-DNBA-N3) and strong SERS signals. HAuNP-DNBA-N3 can be simply and effectively conjugated with folate bicyclo[6.1.0]nonyne derivatives via a copper-free click reaction. The synthesized nanoprobes (HAuNP-DNBA-folic acid (FA)) exhibit excellent targeted capacities to FR-positive cancer cells relative to FR-negative cells through SERS mappings. The receptor-mediated delivery behaviors are confirmed by comparison with the uptake of HAuNP-DNBA-N3 and free FA competition experiments. In addition to its good stability and benign biocompatibility, the developed SERS nanoprobes have great potential for applications in targeted tumor imaging.
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Affiliation(s)
- Renyong Liu
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
- Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Jun Zhao
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Guangmei Han
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Tingting Zhao
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Ruilong Zhang
- School of Chemistry and Chemical Engineering, Anhui University , Hefei, Anhui 230601, China
| | - Bianhua Liu
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Zhengjie Liu
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Cheng Zhang
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Linlin Yang
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
| | - Zhongping Zhang
- CAS Center for Excellence in Nanoscience, Institute of Intelligent Machines, Chinese Academy of Sciences , Hefei, Anhui 230031, China
- School of Chemistry and Chemical Engineering, Anhui University , Hefei, Anhui 230601, China
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38
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Pan H, Li WJ, Yao XJ, Wu YY, Liu LL, He HM, Zhang RL, Ma YF, Cai LT. In Situ Bioorthogonal Metabolic Labeling for Fluorescence Imaging of Virus Infection In Vivo. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1604036. [PMID: 28218446 DOI: 10.1002/smll.201604036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/09/2017] [Indexed: 06/06/2023]
Abstract
Optical fluorescence imaging is an important strategy to explore the mechanism of virus-host interaction. However, current fluorescent tag labeling strategies often dampen viral infectivity. The present study explores an in situ fluorescent labeling strategy in order to preserve viral infectivity and precisely monitor viral infection in vivo. In contrast to pre-labeling strategy, mice are first intranasally infected with azide-modified H5N1 pseudotype virus (N3 -H5N1p), followed by injection of dibenzocyclooctyl (DBCO)-functionalized fluorescence 6 h later. The results show that DBCO dye directly conjugated to N3 -H5N1p in lung tissues through in vivo bioorthogonal chemistry with high specificity and efficacy. More remarkably, in situ labeling rather than conventional prelabeling strategy effectively preserves viral infectivity and immunogenicity both in vitro and in vivo. Hence, in situ bioorthogonal viral labeling is a promising and reliable strategy for imaging and tracking viral infection in vivo.
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Affiliation(s)
- Hong Pan
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wen-Jun Li
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiang-Jie Yao
- Major Infectious Disease Control Key Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
| | - Ya-Yun Wu
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lan-Lan Liu
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hua-Mei He
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ren-Li Zhang
- Major Infectious Disease Control Key Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, P. R. China
| | - Yi-Fan Ma
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lin-Tao Cai
- Guangdong Key Laboratory of Nanomedicine, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Detection of Hepatitis B Virus M204I Mutation by Quantum Dot-Labeled DNA Probe. SENSORS 2017; 17:s17050961. [PMID: 28445403 PMCID: PMC5461085 DOI: 10.3390/s17050961] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 02/06/2023]
Abstract
Quantum dots (QDs) are semiconductor nanoparticles with a diameter of less than 10 nm, which have been widely used as fluorescent probes in biochemical analysis and vivo imaging because of their excellent optical properties. Sensitive and convenient detection of hepatitis B virus (HBV) gene mutations is important in clinical diagnosis. Therefore, we developed a sensitive, low-cost and convenient QDs-mediated fluorescent method for the detection of HBV gene mutations in real serum samples from chronic hepatitis B (CHB) patients who had received lamivudine or telbivudine antiviral therapy. We also evaluated the efficiency of this method for the detection of drug-resistant mutations compared with direct sequencing. In CHB, HBV DNA from the serum samples of patients with poor response or virological breakthrough can be hybridized to probes containing the M204I mutation to visualize fluorescence under fluorescence microscopy, where fluorescence intensity is related to the virus load, in our method. At present, the limits of the method used to detect HBV genetic variations by fluorescence quantum dots is 103 IU/mL. These results show that QDs can be used as fluorescent probes to detect viral HBV DNA polymerase gene variation, and is a simple readout system without complex and expensive instruments, which provides an attractive platform for the detection of HBV M204I mutation.
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40
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Li Q, Li W, Yin W, Guo J, Zhang ZP, Zeng D, Zhang X, Wu Y, Zhang XE, Cui Z. Single-Particle Tracking of Human Immunodeficiency Virus Type 1 Productive Entry into Human Primary Macrophages. ACS NANO 2017; 11:3890-3903. [PMID: 28371581 DOI: 10.1021/acsnano.7b00275] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Macrophages are one of the major targets of human immunodeficiency virus (HIV-1), but the viral entry pathway remains poorly understood in these cells. Noninvasive virus labeling and single-virus tracking are effective tools for studying virus entry. Here, we constructed a quantum dot (QD)-encapsulated infectious HIV-1 particle to track viral entry at a single-particle level in live human primary macrophages. QDs were encapsulated in HIV-1 virions by incorporating viral accessory protein Vpr-conjugated QDs during virus assembly. With the HIV-1 particles encapsulating QDs, we monitored the early phase of viral infection in real time and observed that, during infection, HIV-1 was endocytosed in a clathrin-mediated manner; the particles were translocated into Rab5A-positive endosomes, and the core was released into the cytoplasm by viral envelope-mediated endosomal fusion. Drug inhibition assays verified that endosome fusion contributes to HIV-1 productive infection in primary macrophages. Additionally, we observed that a dynamic actin cytoskeleton is critical for HIV-1 entry and intracellular migration in primary macrophages. HIV-1 dynamics and infection could be blocked by multiple different actin inhibitors. Our study revealed a productive entry pathway in macrophages that requires both endosomal function and actin dynamics, which may assist in the development of inhibitors to block the HIV entry in macrophages.
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Affiliation(s)
- Qin Li
- College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P.R. China
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences , Wuhan 430071, P.R. China
| | - Wei Li
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences , Wuhan 430071, P.R. China
| | - Wen Yin
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences , Wuhan 430071, P.R. China
| | - Jia Guo
- National Center for Biodefense and Infectious Diseases, Department of Molecular and Microbiology, George Mason University , Manassas, Virginia 20110, United States
| | - Zhi-Ping Zhang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences , Wuhan 430071, P.R. China
| | - Dejun Zeng
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences , Wuhan 430071, P.R. China
| | - Xiaowei Zhang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences , Wuhan 430071, P.R. China
| | - Yuntao Wu
- National Center for Biodefense and Infectious Diseases, Department of Molecular and Microbiology, George Mason University , Manassas, Virginia 20110, United States
| | - Xian-En Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences , Beijing 100101, P.R. China
| | - Zongqiang Cui
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences , Wuhan 430071, P.R. China
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41
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Lee J, Choi S, Kim KH, Heng HG, Torregrosa-Allen SE, Ramsey BS, Elzey BD, Won YY. Nontoxic Formulations of Scintillation Nanocrystals for Use as X-ray Computed Tomography Contrast Agents. Bioconjug Chem 2016; 28:171-182. [PMID: 27791362 DOI: 10.1021/acs.bioconjchem.6b00451] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
X-ray computed tomography (CT) is currently one of the most powerful, noninvasive, clinical in vivo imaging techniques, which has resulted from advances in both X-ray device and contrast enhancement technologies. The present study demonstrates, for the first time, that metal tungstates (such as CaWO4) are promising contrast agents for X-ray, radiation, and CT imaging, because of the high X-ray mass attenuation of tungsten (W). We have developed a method of formulation, in which CaWO4 (CWO) nanoparticles (NPs) are encapsulated within a biocompatible poly(ethylene glycol-b-d,l-lactic acid) (PEG-PLA) block copolymer (BCP) capsule. We show that these PEG-PLA-encapsulated CWO NPs (170 ± 10 nm hydrodynamic diameter) produce a higher CT contrast (by a factor of about 2) than commercial iodine-based radiocontrast agents (e.g., Iohexol) at identical molar concentrations of W or I atoms. PEG-PLA-coated CWO NPs are chemically stable and completely nontoxic. It was confirmed that the maximum tolerated dose (MTD) of this material in mice is significantly higher (250 ± 50 mg per kg body weight following a single intravenous (IV) administration) than, for instance, commercially available dextran-coated iron oxide nanoparticles that are currently used clinically as MRI contrast agents (MTD in mice ≈ 168 mg/kg per dose IV). IV-injected PEG-PLA/CWO NPs caused no histopathologic damage in major excretory organs (heart, liver, lungs, spleen, and kidney). When an IV dose of 100 mg/kg was given to mice, the blood circulation half-life was measured to be about 4 h, and more than 90% of the NPs were cleared from the mice within 24 h via the renal and hepatobiliary systems. When intratumorally administered, PEG-PLA-coated CWO NPs showed complete retention in a tumor-bearing mouse model (measurements were made up to 1 week). These results suggest that PEG-PLA-coated CWO NPs are promising materials for use in CT contrast.
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Affiliation(s)
- Jaewon Lee
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Seulgi Choi
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Ki Hyun Kim
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Hock Gan Heng
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Sandra E Torregrosa-Allen
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Benjamin S Ramsey
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - Bennett D Elzey
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
| | - You-Yeon Won
- School of Chemical Engineering, ‡Department of Veterinary Clinical Sciences, §Department of Comparative Pathobiology, and ∥Purdue University Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
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42
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Zheng LL, Li CM, Zhen SJ, Li YF, Huang CZ. His-tag based in situ labelling of progeny viruses for real-time single virus tracking in living cells. NANOSCALE 2016; 8:18635-18639. [PMID: 27805216 DOI: 10.1039/c6nr05806j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Tracking virus infection events in live cells is useful for understanding the mechanism of virus infection, and fluorescent labelling is a critical step. Herein a noninvasive strategy for labelling viruses with His-tags was developed by in situ modifying the cell surface proteins with polypeptides containing His-tags during progeny virus assembly. The His-tagged viruses were further conjugated with Ni2+-nitrilotriacetate complex modified quantum dots, and retained their infectivity for real-time single virus tracking in living cells.
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Affiliation(s)
- Lin Ling Zheng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, PR China.
| | - Chun Mei Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, PR China.
| | - Shu Jun Zhen
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yuan Fang Li
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, PR China. and Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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43
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Lv C, Lin Y, Liu AA, Hong ZY, Wen L, Zhang Z, Zhang ZL, Wang H, Pang DW. Labeling viral envelope lipids with quantum dots by harnessing the biotinylated lipid-self-inserted cellular membrane. Biomaterials 2016; 106:69-77. [DOI: 10.1016/j.biomaterials.2016.08.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/06/2016] [Accepted: 08/09/2016] [Indexed: 12/11/2022]
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44
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Shen Y, Roberge A, Tan R, Gee MY, Gary DC, Huang Y, Blom DA, Benicewicz BC, Cossairt BM, Greytak AB. Gel permeation chromatography as a multifunctional processor for nanocrystal purification and on-column ligand exchange chemistry. Chem Sci 2016; 7:5671-5679. [PMID: 30034705 PMCID: PMC6022040 DOI: 10.1039/c6sc01301e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/20/2016] [Indexed: 01/31/2023] Open
Abstract
This article illustrates the use of gel permeation chromatography (GPC, organic-phase size exclusion chromatography) to separate nanocrystals from weakly-bound small molecules, including solvent, on the basis of size. A variety of colloidal inorganic nanocrystals of different size, shape, composition, and surface termination are shown to yield purified samples with greatly reduced impurity concentrations. Additionally, the method is shown to be useful in achieving a change of solvent without requiring precipitation of the nanocrystals. By taking advantage of the different rates at which small molecules and nanoparticles travel through the column, we show that it is furthermore possible to use the GPC column as a multi-functional flow reactor that can accomplish in sequence the steps of initial purification, ligand exchange with controlled reactant concentration and interaction time, and subsequent cleanup without requiring a change of phase. This example of process intensification via GPC is shown to yield nearly complete displacement of the initial surface ligand population upon reaction with small molecule and macromolecular reactants to form ligand-exchanged nanocrystal products.
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Affiliation(s)
- Yi Shen
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , SC 29208 , USA .
| | - Adam Roberge
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , SC 29208 , USA .
| | - Rui Tan
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , SC 29208 , USA .
| | - Megan Y Gee
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , SC 29208 , USA .
| | - Dylan C Gary
- Department of Chemistry , University of Washington , Seattle , WA 98195 , USA
| | - Yucheng Huang
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , SC 29208 , USA .
| | - Douglas A Blom
- USC Nanocenter , University of South Carolina , Columbia , SC 29208 , USA
| | - Brian C Benicewicz
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , SC 29208 , USA .
- USC Nanocenter , University of South Carolina , Columbia , SC 29208 , USA
| | - Brandi M Cossairt
- Department of Chemistry , University of Washington , Seattle , WA 98195 , USA
| | - Andrew B Greytak
- Department of Chemistry and Biochemistry , University of South Carolina , Columbia , SC 29208 , USA .
- USC Nanocenter , University of South Carolina , Columbia , SC 29208 , USA
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45
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Hildebrandt N, Spillmann CM, Algar WR, Pons T, Stewart MH, Oh E, Susumu K, Díaz SA, Delehanty JB, Medintz IL. Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications. Chem Rev 2016; 117:536-711. [DOI: 10.1021/acs.chemrev.6b00030] [Citation(s) in RCA: 457] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Niko Hildebrandt
- NanoBioPhotonics
Institut d’Electronique Fondamentale (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, 91400 Orsay, France
| | | | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Thomas Pons
- LPEM;
ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC, F-75005 Paris, France
| | | | - Eunkeu Oh
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Sebastian A. Díaz
- American Society for Engineering Education, Washington, DC 20036, United States
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46
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Oh E, Liu R, Nel A, Gemill KB, Bilal M, Cohen Y, Medintz IL. Meta-analysis of cellular toxicity for cadmium-containing quantum dots. NATURE NANOTECHNOLOGY 2016; 11:479-86. [PMID: 26925827 DOI: 10.1038/nnano.2015.338] [Citation(s) in RCA: 276] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 12/16/2015] [Indexed: 04/14/2023]
Abstract
Understanding the relationships between the physicochemical properties of engineered nanomaterials and their toxicity is critical for environmental and health risk analysis. However, this task is confounded by material diversity, heterogeneity of published data and limited sampling within individual studies. Here, we present an approach for analysing and extracting pertinent knowledge from published studies focusing on the cellular toxicity of cadmium-containing semiconductor quantum dots. From 307 publications, we obtain 1,741 cell viability-related data samples, each with 24 qualitative and quantitative attributes describing the material properties and experimental conditions. Using random forest regression models to analyse the data, we show that toxicity is closely correlated with quantum dot surface properties (including shell, ligand and surface modifications), diameter, assay type and exposure time. Our approach of integrating quantitative and categorical data provides a roadmap for interrogating the wide-ranging toxicity data in the literature and suggests that meta-analysis can help develop methods for predicting the toxicity of engineered nanomaterials.
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Affiliation(s)
- Eunkeu Oh
- Optical Sciences Division, Code 5611, US Naval Research Laboratory, Washington, Washington DC 20375, USA
- Sotera Defense Solutions, Columbia, Maryland 21046, USA
| | - Rong Liu
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Andre Nel
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Medicine, Division of NanoMedicine, University of California, Los Angeles, California 90095, USA
| | - Kelly Boeneman Gemill
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
| | - Muhammad Bilal
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
| | - Yoram Cohen
- Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095-1496, USA
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095-7227, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095-1592, USA
| | - Igor L Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, US Naval Research Laboratory, SW Washington, Washington DC 20375, USA
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47
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Chen Y, Xianyu Y, Wu J, Yin B, Jiang X. Click Chemistry-Mediated Nanosensors for Biochemical Assays. Theranostics 2016; 6:969-85. [PMID: 27217831 PMCID: PMC4876622 DOI: 10.7150/thno.14856] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 02/11/2016] [Indexed: 12/19/2022] Open
Abstract
Click chemistry combined with functional nanoparticles have drawn increasing attention in biochemical assays because they are promising in developing biosensors with effective signal transformation/amplification and straightforward signal readout for clinical diagnostic assays. In this review, we focus on the latest advances of biochemical assays based on Cu (I)-catalyzed 1, 3-dipolar cycloaddition of azides and alkynes (CuAAC)-mediated nanosensors, as well as the functionalization of nanoprobes based on click chemistry. Nanoprobes including gold nanoparticles, quantum dots, magnetic nanoparticles and carbon nanomaterials are covered. We discuss the advantages of click chemistry-mediated nanosensors for biochemical assays, and give perspectives on the development of click chemistry-mediated approaches for clinical diagnosis and other biomedical applications.
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Affiliation(s)
| | | | | | | | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, Beijing 100190, China
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48
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Zhao X, Shen Y, Adogla EA, Viswanath A, Tan R, Benicewicz BC, Greytak AB, Lin Y, Wang Q. Surface labeling of enveloped virus with polymeric imidazole ligand-capped quantum dots via the metabolic incorporation of phospholipids into host cells. J Mater Chem B 2016; 4:2421-2427. [PMID: 32263192 DOI: 10.1039/c6tb00263c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report a general method for the preparation of quantum dot-labeled viruses through a strain-promoted azide-alkyne cycloaddition (SPAAC) reaction. The quantum dot sample was functionalized with methacrylate-based polymeric imidazole ligands (MA-PILs) bearing dibenzocyclooctyne groups. Enveloped measles virus was labeled with azide groups through the metabolic incorporation of a choline analogue into the host cell membrane, and then linked with the modified QDs. The virus retained its infectious ability against host cells after the modification with MA-PIL capped QDs.
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Affiliation(s)
- Xia Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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49
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Ma L, Tu C, Le P, Chitoor S, Lim SJ, Zahid MU, Teng KW, Ge P, Selvin PR, Smith AM. Multidentate Polymer Coatings for Compact and Homogeneous Quantum Dots with Efficient Bioconjugation. J Am Chem Soc 2016; 138:3382-94. [PMID: 26863113 DOI: 10.1021/jacs.5b12378] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Quantum dots are fluorescent nanoparticles used to detect and image proteins and nucleic acids. Compared with organic dyes and fluorescent proteins, these nanocrystals have enhanced brightness, photostability, and wavelength tunability, but their larger size limits their use. Recently, multidentate polymer coatings have yielded stable quantum dots with small hydrodynamic dimensions (≤10 nm) due to high-affinity, compact wrapping around the nanocrystal. However, this coating technology has not been widely adopted because the resulting particles are frequently heterogeneous and clustered, and conjugation to biological molecules is difficult to control. In this article we develop new polymeric ligands and optimize coating and bioconjugation methodologies for core/shell CdSe/Cd(x)Zn(1-x)S quantum dots to generate homogeneous and compact products. We demonstrate that "ligand stripping" to rapidly displace nonpolar ligands with hydroxide ions allows homogeneous assembly with multidentate polymers at high temperature. The resulting aqueous nanocrystals are 7-12 nm in hydrodynamic diameter, have quantum yields similar to those in organic solvents, and strongly resist nonspecific interactions due to short oligoethylene glycol surfaces. Compared with a host of other methods, this technique is superior for eliminating small aggregates identified through chromatographic and single-molecule analysis. We also demonstrate high-efficiency bioconjugation through azide-alkyne click chemistry and self-assembly with hexa-histidine-tagged proteins that eliminate the need for product purification. The conjugates retain specificity of the attached biomolecules and are exceptional probes for immunofluorescence and single-molecule dynamic imaging. These results are expected to enable broad utilization of compact, biofunctional quantum dots for studying crowded macromolecular environments such as the neuronal synapse and cellular cytoplasm.
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Affiliation(s)
| | - Chunlai Tu
- School of Physical Science and Technology, ShanghaiTech University , 100 Haike Rd., Pudong New Area, Shanghai, 201210, China
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50
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Hattori T, Nakanishi K, Mori T, Tomita M, Tsumoto K. The method used to culture host cells (Sf9 cells) can affect the qualities of baculovirus budding particles expressing recombinant proteins. Biosci Biotechnol Biochem 2016; 80:445-51. [DOI: 10.1080/09168451.2015.1101331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract
Budded virus (BV) particles of baculovirus (Autographa californica nucleopolyhedrovirus, AcNPV) are harvested from the supernatant of liquid culture of Sf9 host cells by ultracentrifugation. Using polyacrylamide gel electrophoresis, Western blot and transmission electron microscopy (TEM) of BV samples fractionated closely by sucrose density gradient centrifugation, we observed that BVs exhibited different qualities depending on whether they had been harvested from the supernatant from a standing (static), shaking (suspension), or standing/shaking (pre-/post-infection) culture of Sf9 cells. The amount of BV protein apparently increased in the order of standing, standing/shaking, and shaking procedure, and the yield of intact particles showed an opposite trend. TEM observation clearly showed that appropriate fractions of the standing and standing/shaking cultures contained more intact BV particles than those from the shaking culture. These results suggest that the qualities of recombinant BV particles may be related to the culture conditions of the host cells.
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Affiliation(s)
- Tomomi Hattori
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Kohei Nakanishi
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Takaaki Mori
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Masahiro Tomita
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
| | - Kanta Tsumoto
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Japan
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