1
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Aldakkan BS, Chalmpes N, Qi G, Hammami MA, Kanj MY, Giannelis EP. Synthesis of Raspberry-like Nanoparticles via Surface Grafting of Positively Charged Polyelectrolyte Brushes: Colloidal Stability and Surface Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5837-5849. [PMID: 38457691 DOI: 10.1021/acs.langmuir.3c03713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
A method to synthesize stable, raspberry-like nanoparticles (NPs), using surface grafting of poly(glycidyl methacrylate) (PGMA) brushes on a polystyrene (PS) core with varying grafting densities, is reported. A two-step functionalization reaction of PGMA epoxide groups comprising an amination step first using ethylene diamine and then followed by a quaternization using glycidyltrimethylammonium chloride generates permanently and positively charged polyelectrolyte brushes, which result in both steric and electrostatic stabilization. The dispersion stability of the brush-bearing NPs is dramatically improved compared to that of the pristine PS core in salt solutions at ambient (25 °C) and elevated temperatures (60 °C). Additionally, the grafted polyelectrolyte chains undergo a reversible swelling in the presence of different ionic strength (IS) salts, which modulate the surface properties, including roughness, stiffness, and adhesion. An atomic force microscope under both dry and wet conditions was used to image conformational changes of the polyelectrolyte chains during the swelling and deswelling transitions as well as to probe the nanomechanical properties by analyzing the corresponding force-sample separation curves. The quaternized polyelectrolyte brushes undergo a conformational transition from a collapsed state to a swelled state in the osmotic brush (OB) regime triggered by the osmotic gradient of mobile ions to the interior of the polymer chain. At IS ∼ 1 M, the brushes contract and the globules reform (salted brush state) as evidenced by an increase in the surface roughness and a reduction in the adhesion of the brushes. Beyond IS ∼ 1 M, quartz crystal microbalance with dissipation monitoring measurements show that salt uptake continues to take place predominantly on the exterior surface of the brush since salt adsorption is not accompanied by a size increase as measured by dynamic light scattering. The study adds new insights into our understanding of the behavior of NPs bearing salt-responsive polyelectrolyte brushes with adaptive swelling thresholds that can ultimately modulate surface properties.
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Affiliation(s)
- Bashayer Saad Aldakkan
- Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Nikolaos Chalmpes
- Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Genggeng Qi
- Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Mohamed Amen Hammami
- Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Mazen Yousef Kanj
- College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Emmanuel P Giannelis
- Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
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2
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Wang L, Shi S, Yin L, Zhai Y, Xuan T, Liu B, Xie RJ. Water-Soluble Quantum Dots for Inkjet Printing Color Conversion Films with Simultaneous High Efficiency and Stability. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5050-5057. [PMID: 38228493 DOI: 10.1021/acsami.3c13244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Water-soluble quantum dots (QDs) are necessary to prepare patterned pixels or films for high-resolution displays with less environmental burden but are very limited by the trade-off between photoluminescence and stability of QDs. In this work, we proposed synthesizing water-soluble QDs with simultaneous excellent luminescence properties and high stability by coating the amphiphilic poly(maleic anhydride-alt-1-octadecene)-ethanol amine (PMAO-EA) polymer on the surface of silane-treated QDs. These coated QDs show a photoluminescence quantum yield (PLQY) as high as 94%, and they have good photoluminescence stability against light irradiation and thermal attacks, owing to the suppression of the nonradiative recombination by the polymer layer and the isolation of oxygen and water by the silica layer. The water-soluble QDs, mixed with ethylene glycol, enable inkjet printing of QD color conversion films (QD-CCFs) with an average diameter of 68 μm for each pixel and a high PLQY of 91%. The QD-CCFs are demonstrated to fabricate red-emitting mini-LEDs by combining with blue mini-LED chips, which have an external quantum efficiency as high as 25.86% and a luminance of 2.44 × 107 cd/m2. We believe that the proposed strategy is applicable to other water-soluble QDs and paves an avenue for inkjet printing environmentally friendly QD-CCFs for mini/micro-LED displays.
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Affiliation(s)
- Le Wang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Shuchen Shi
- Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, College of Materials, Xiamen University, No. 422, Siming South Road, Xiamen 361005, China
| | - Lu Yin
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Yue Zhai
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Tongtong Xuan
- Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, College of Materials, Xiamen University, No. 422, Siming South Road, Xiamen 361005, China
- Shenzhen Research Institute of Xiamen University, No. 19, Gaoxin South Fourth Road, Nanshan District, Shenzhen 518000, China
| | - Bo Liu
- Nanjing University of Information Science & Technology, Institute of Optics and Electronics, Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing 210044, China
| | - Rong-Jun Xie
- Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, College of Materials, Xiamen University, No. 422, Siming South Road, Xiamen 361005, China
- Shenzhen Research Institute of Xiamen University, No. 19, Gaoxin South Fourth Road, Nanshan District, Shenzhen 518000, China
- State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, China
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3
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Feye J, Matthias J, Fischer A, Rudolph D, Treptow J, Popescu R, Franke J, Exarhos AL, Boekelheide ZA, Gerthsen D, Feldmann C, Roesky PW, Rösch ES. SMART RHESINs-Superparamagnetic Magnetite Architecture Made of Phenolic Resin Hollow Spheres Coated with Eu(III) Containing Silica Nanoparticles for Future Quantitative Magnetic Particle Imaging Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301997. [PMID: 37203272 DOI: 10.1002/smll.202301997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/15/2023] [Indexed: 05/20/2023]
Abstract
Magnetic particle imaging (MPI) is a powerful and rapidly growing tomographic imaging technique that allows for the non-invasive visualization of superparamagnetic nanoparticles (NPs) in living matter. Despite its potential for a wide range of applications, the intrinsic quantitative nature of MPI has not been fully exploited in biological environments. In this study, a novel NP architecture that overcomes this limitation by maintaining a virtually unchanged effective relaxation (Brownian plus Néel) even when immobilized is presented. This superparamagnetic magnetite architecture made of phenolic resin hollow spheres coated with Eu(III) containing silica nanoparticles (SMART RHESINs) was synthesized and studied. Magnetic particle spectroscopy (MPS) measurements confirm their suitability for potential MPI applications. Photobleaching studies show an unexpected photodynamic due to the fluorescence emission peak of the europium ion in combination with the phenol formaldehyde resin (PFR). Cell metabolic activity and proliferation behavior are not affected. Colocalization experiments reveal the distinct accumulation of SMART RHESINs near the Golgi apparatus. Overall, SMART RHESINs show superparamagnetic behavior and special luminescent properties without acute cytotoxicity, making them suitable for bimodal imaging probes for medical use like cancer diagnosis and treatment. SMART RHESINs have the potential to enable quantitative MPS and MPI measurements both in mobile and immobilized environments.
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Affiliation(s)
- Julia Feye
- Faculty of Engineering, Baden-Württemberg Cooperative State University Karlsruhe, 76133, Karlsruhe, Germany
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Jessica Matthias
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
| | - Alena Fischer
- Department of Optical Nanoscopy, Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
| | - David Rudolph
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Jens Treptow
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Radian Popescu
- Laboratory for Electron Microscopy, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Jochen Franke
- Bruker, BioSpin MRI GmbH, Preclinical Imaging Division, 76275, Ettlingen, Germany
| | | | | | - Dagmar Gerthsen
- Laboratory for Electron Microscopy, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Claus Feldmann
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Esther S Rösch
- Faculty of Engineering, Baden-Württemberg Cooperative State University Karlsruhe, 76133, Karlsruhe, Germany
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4
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Chandrasiri HB, Jing H, Perera T, Hu YS, Snee PT. Fluorescence Intermittency of Quantum Dot-Organic Dye Conjugates: Implications for Alternative Energy and Biological Imaging. J Phys Chem Lett 2023; 14:3621-3626. [PMID: 37023397 DOI: 10.1021/acs.jpclett.3c00076] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Quantum dot (QD)-organic dye couple chromophores are topical due to their applications in biology, catalysis, and energy. The maximization of energy transfer efficiency can be guided by the underlying Förster or Dexter mechanisms; however, the impact of fluorescence intermittency must also be considered. Here we demonstrate that the average ⟨ton⟩ and ⟨toff⟩ times of dye acceptors in coupled QD-dye chromophores are substantially affected by the donors' blinking behavior. With regard to biological imaging, this effect beneficially minimizes the photobleaching of the acceptor dye. The implications for alternative energy are less encouraging as the acceptors' capacity to store energy, using ⟨ton⟩/⟨toff⟩ as a metric, was reduced by as much as ∼95%. These detrimental effects can be mitigated by suppressing QD blinking via surface treatment. This study also demonstrates several instances of the nonconformity of QD blinking dynamics to a power law distribution, as a robust examination of the off times reveals log-normal behavior that is consistent with the Albery model.
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Affiliation(s)
- Hashini B Chandrasiri
- Department of Chemistry, College of Liberal Arts & Sciences, University of Illinois, Chicago, Chicago, Illinois 60607-7061, United States
| | - Haoran Jing
- Department of Chemistry, College of Liberal Arts & Sciences, University of Illinois, Chicago, Chicago, Illinois 60607-7061, United States
| | - Thilini Perera
- Department of Chemistry, College of Liberal Arts & Sciences, University of Illinois, Chicago, Chicago, Illinois 60607-7061, United States
| | - Ying S Hu
- Department of Chemistry, College of Liberal Arts & Sciences, University of Illinois, Chicago, Chicago, Illinois 60607-7061, United States
| | - Preston T Snee
- Department of Chemistry, College of Liberal Arts & Sciences, University of Illinois, Chicago, Chicago, Illinois 60607-7061, United States
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5
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Hernández-Pacheco P, Zelada-Guillén GA, Romero-Ávila M, Cañas-Alonso RC, Flores-Álamo M, Escárcega-Bobadilla MV. Enhanced Host-Guest Association and Fluorescence in Copolymers from Copper Salphen Complexes by Supramolecular Internalization of Anions. Chempluschem 2023; 88:e202200310. [PMID: 36175158 DOI: 10.1002/cplu.202200310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/13/2022] [Indexed: 11/10/2022]
Abstract
We describe the synthesis, crystallographic characterization of a new Cu-Salphen compound and its use as a host Lewis-acid against guest anions in two versions: a) free molecule, b) copolymerized with methyl methacrylate:n-butyl acrylate (1 : 4-wt.) as protective co-monomers. Higher contents in Cu-Salphen yielded larger and more homogeneous polymer sizes. Polymer size together with glass transitions, heat capacity, thermal degradation, guest-saturation degrees and host-guest species distribution profiles from spectrophotometric titrations explained growths of up to 630-fold in K11 and 180000-fold in K12 for the host's binding site attributable to a solvophobic protection from the macromolecular structure. Spectrofluorimetry revealed blue-shifted×13-16 larger luminescence for Cu-Salphen in the polymers (λem =488-498 nm) than that of the non-polymerized counterpart (λem =510-543 nm) and "turn-on" blue-shifted enhanced fluorescence upon guest association. We propose a cooperative incorporation of the guests occurring from the outer medium toward internally protected binding site pockets in the random coil polymer conformations.
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Affiliation(s)
- Paulina Hernández-Pacheco
- School of Chemistry, National Autonomous University of Mexico (UNAM), Circuito Escolar s/n, Ciudad Universitaria, Mexico City, 04510, Mexico
| | - Gustavo A Zelada-Guillén
- School of Chemistry, National Autonomous University of Mexico (UNAM), Circuito Escolar s/n, Ciudad Universitaria, Mexico City, 04510, Mexico
| | - Margarita Romero-Ávila
- School of Chemistry, National Autonomous University of Mexico (UNAM), Circuito Escolar s/n, Ciudad Universitaria, Mexico City, 04510, Mexico
| | - Roberto Carlos Cañas-Alonso
- School of Chemistry, National Autonomous University of Mexico (UNAM), Circuito Escolar s/n, Ciudad Universitaria, Mexico City, 04510, Mexico
| | - Marcos Flores-Álamo
- School of Chemistry, National Autonomous University of Mexico (UNAM), Circuito Escolar s/n, Ciudad Universitaria, Mexico City, 04510, Mexico
| | - Martha V Escárcega-Bobadilla
- School of Chemistry, National Autonomous University of Mexico (UNAM), Circuito Escolar s/n, Ciudad Universitaria, Mexico City, 04510, Mexico
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6
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Liang X, Gillies ER. Self-immolative Amphiphilic Diblock Copolymers with Individually Triggerable Blocks. ACS POLYMERS AU 2022; 2:313-323. [PMID: 36254315 PMCID: PMC9562457 DOI: 10.1021/acspolymersau.2c00013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
![]()
Self-immolative polymers
are a growing class of degradable polymers
that undergo end-to-end depolymerization after the stimuli-responsive
cleavage of an end-cap or backbone unit. Their incorporation into
amphiphilic block copolymers can lead to functions such as the disintegration
of copolymer nanoassemblies when depolymerization is triggered. However,
diblock copolymers have not yet been developed where both blocks are
self-immolative. Described here is the synthesis, self-assembly, and
triggered depolymerization of self-immolative block copolymers with
individually triggerable hydrophilic and hydrophobic blocks. Neutral
and cationic hydrophilic polyglyxoylamides (PGAm) with acid-responsive
end caps were synthesized and coupled to an ultraviolet (UV) light-triggerable
poly(ethyl glyoxylate) (PEtG) hydrophobic block. The resulting block
copolymers self-assembled to form nanoparticles in aqueous solution,
and their depolymerization in response to acid and UV light was studied
by techniques including light scattering, NMR spectroscopy, and electron
microscopy. Acid led to selective depolymerization of the PGAm blocks,
leading to aggregation, while UV light led to selective depolymerization
of the PEtG block, leading to disassembly. This self-immolative block
copolymer system provides an enhanced level of control over smart
copolymer assemblies and their degradation.
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Affiliation(s)
- Xiaoli Liang
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada, N6A 5B7
| | - Elizabeth R. Gillies
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada, N6A 5B7
- The Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario, Canada, N6A 5B7
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario, Canada, N6A 5B9
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7
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Sukhanova A, Bozrova S, Gerasimovich E, Baryshnikova M, Sokolova Z, Samokhvalov P, Guhrenz C, Gaponik N, Karaulov A, Nabiev I. Dependence of Quantum Dot Toxicity In Vitro on Their Size, Chemical Composition, and Surface Charge. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162734. [PMID: 36014600 PMCID: PMC9416395 DOI: 10.3390/nano12162734] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/05/2022] [Accepted: 08/05/2022] [Indexed: 06/09/2023]
Abstract
Semiconductor nanocrystals known as quantum dots (QDs) are of great interest for researchers and have potential use in various applications in biomedicine, such as in vitro diagnostics, molecular tracking, in vivo imaging, and drug delivery. Systematic analysis of potential hazardous effects of QDs is necessary to ensure their safe use. In this study, we obtained water-soluble core/shell QDs differing in size, surface charge, and chemical composition of the core. All the synthesized QDs were modified with polyethylene glycol derivatives to obtain outer organic shells protecting them from degradation. The physical and chemical parameters were fully characterized. In vitro cytotoxicity of the QDs was estimated in both normal and tumor cell lines. We demonstrated that QDs with the smallest size had the highest in vitro cytotoxicity. The most toxic QDs were characterized by a low negative surface charge, while positively charged QDs were less cytotoxic, and QDs with a greater negative charge were the least toxic. In contrast, the chemical composition of the QD core did not noticeably affect the cytotoxicity in vitro. This study provides a better understanding of the influence of the QD parameters on their cytotoxicity and can be used to improve the design of QDs.
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Affiliation(s)
- Alyona Sukhanova
- Laboratoire de Recherche en Nanosciences, LRN-EA4682, Université de Reims Champagne-Ardenne, 51100 Reims, France
| | - Svetlana Bozrova
- Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia
| | - Evgeniia Gerasimovich
- Laboratoire de Recherche en Nanosciences, LRN-EA4682, Université de Reims Champagne-Ardenne, 51100 Reims, France
- Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia
| | - Maria Baryshnikova
- Laboratory of Experimental Diagnostics and Biotherapy of Tumors, N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russian Federation, 115478 Moscow, Russia
| | - Zinaida Sokolova
- Laboratory of Experimental Diagnostics and Biotherapy of Tumors, N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russian Federation, 115478 Moscow, Russia
| | - Pavel Samokhvalov
- Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia
| | - Chris Guhrenz
- Physical Chemistry, Technische Universität Dresden, Zellescher Weg 19, 01069 Dresden, Germany
| | - Nikolai Gaponik
- Physical Chemistry, Technische Universität Dresden, Zellescher Weg 19, 01069 Dresden, Germany
| | - Alexander Karaulov
- Department of Clinical Immunology and Allergology, Institute of Molecular Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119146 Moscow, Russia
| | - Igor Nabiev
- Laboratoire de Recherche en Nanosciences, LRN-EA4682, Université de Reims Champagne-Ardenne, 51100 Reims, France
- Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia
- Department of Clinical Immunology and Allergology, Institute of Molecular Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119146 Moscow, Russia
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8
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Ndugire W, Raviranga NGH, Lao J, Ramström O, Yan M. Gold Nanoclusters as Nanoantibiotic Auranofin Analogues. Adv Healthc Mater 2022; 11:e2101032. [PMID: 34350709 PMCID: PMC8816973 DOI: 10.1002/adhm.202101032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/13/2021] [Indexed: 12/21/2022]
Abstract
Auranofin, a gold(I)-complex with tetraacetylated thioglucose (Ac4 GlcSH) and triethylphosphine ligands, is an FDA-approved drug used as an anti-inflammatory aid in the treatment of rheumatoid arthritis. In repurposing auranofin for other diseases, it was found that the drug showed significant activity against Gram-positive but was inactive against Gram-negative bacteria. Herein, the design and synthesis of gold nanoclusters (AuNCs) based on the structural motif of auranofin are reported. Phosphine-capped AuNCs are synthesized and glycosylated, yielding auranofin analogues with mixed triphenylphosphine monosulfonate (TPPMS)/Ac4 GlcSH ligand shells. These AuNCs are active against both Gram-negative and Gram-positive bacteria, including multidrug-resistant pathogens. Notably, an auranofin analogue, a mixed-ligand 1.6 nm AuNC 4b, is more active than auranofin against Pseudomonas aeruginosa, while exhibiting lower toxicity against human A549 cells. The enhanced antibacterial activity of these AuNCs is characterized by a greater uptake of Au by the bacteria compared to AuI complexes. Additional factors include increased oxidative stress, moderate inhibition of thioredoxin reductase (TrxR), and DNA damage. Most intriguingly, the uptake of AuNCs are not affected by the bacterial outer membrane (OM) barrier or by binding with the extracellular proteins. This contrasts with AuI complexes like auranofin that are susceptible to protein binding and hindered by the OM barrier.
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Affiliation(s)
- William Ndugire
- Department of Chemistry, University of Massachusetts Lowell, One University Ave., Lowell, MA, 01854, USA
| | - N G Hasitha Raviranga
- Department of Chemistry, University of Massachusetts Lowell, One University Ave., Lowell, MA, 01854, USA
| | - Jingzhe Lao
- Department of Chemistry, University of Massachusetts Lowell, One University Ave., Lowell, MA, 01854, USA
| | - Olof Ramström
- Department of Chemistry, University of Massachusetts Lowell, One University Ave., Lowell, MA, 01854, USA
- Department of Chemistry and Biomedical Sciences, Linnaeus University, Kalmar, SE-39182, Sweden
| | - Mingdi Yan
- Department of Chemistry, University of Massachusetts Lowell, One University Ave., Lowell, MA, 01854, USA
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9
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Greytak AB, Abiodun SL, Burrell JM, Cook EN, Jayaweera NP, Islam MM, Shaker AE. Thermodynamics of nanocrystal–ligand binding through isothermal titration calorimetry. Chem Commun (Camb) 2022; 58:13037-13058. [DOI: 10.1039/d2cc05012a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Manipulations of nanocrystal (NC) surfaces have propelled the applications of colloidal NCs across various fields such as bioimaging, catalysis, electronics, and sensing applications.
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Affiliation(s)
- Andrew B. Greytak
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Sakiru L. Abiodun
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Jennii M. Burrell
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Emily N. Cook
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Nuwanthaka P. Jayaweera
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Md Moinul Islam
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Abdulla E Shaker
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
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10
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Jing H, Pálmai M, Saed B, George A, Snee PT, Hu YS. Cytosolic delivery of membrane-penetrating QDs into T cell lymphocytes: implications in immunotherapy and drug delivery. NANOSCALE 2021; 13:5519-5529. [PMID: 33688882 PMCID: PMC8029070 DOI: 10.1039/d0nr08362c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We report single-particle characterization of membrane-penetrating semiconductor quantum dots (QDs) in T cell lymphocytes. We functionalized water-soluble CdSe/CdZnS QDs with a cell-penetrating peptide composed of an Asp-Ser-Ser (DSS) repeat sequence. DSS and peptide-free control QDs displayed concentration-dependent internalization. Intensity profiles from single-particle imaging revealed a propensity of DSS-QDs to maintain a monomeric state in the T cell cytosol, whereas control QDs formed pronounced clusters. Single-particle tracking showed a direct correlation between individual QD clusters' mobility and aggregation state. A significant portion of control QDs colocalized with an endosome marker inside the T cells, while the percentage of DSS-QDs colocalized dropped to 9%. Endocytosis inhibition abrogated the internalization of control QDs, while DSS-QD internalization only mildly decreased, suggesting an alternative cell-entry mechanism. Using 3D single-particle tracking, we captured the rapid membrane-penetrating activity of a DSS-QD. The ability to characterize membrane penetrating activities in live T cells creates inroads for the optimization of gene therapy and drug delivery through the use of novel nanomaterials.
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Affiliation(s)
- Haoran Jing
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Marcell Pálmai
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Badeia Saed
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Anne George
- Department of Oral Biology, College of Dentistry, University of Illinois at Chicago, Chicago, IL 60612-7211, USA
| | - Preston T Snee
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
| | - Ying S Hu
- Department of Chemistry, College of Liberal Arts and Sciences, University of Illinois at Chicago, Chicago, IL 60607-7061, USA.
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11
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Carvalho IC, Mansur AAP, Carvalho SM, Mansur HS. Nanotheranostics through Mitochondria-targeted Delivery with Fluorescent Peptidomimetic Nanohybrids for Apoptosis Induction of Brain Cancer Cells. Nanotheranostics 2021; 5:213-239. [PMID: 33614399 PMCID: PMC7893535 DOI: 10.7150/ntno.54491] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/26/2021] [Indexed: 01/23/2023] Open
Abstract
Overview: Malignant brain tumors remain one of the greatest challenges faced by health professionals and scientists among the utmost lethal forms of cancer. Nanotheranostics can play a pivotal role in developing revolutionary nanoarchitectures with multifunctional and multimodal capabilities to fight cancer. Mitochondria are vital organelles to eukaryotic cells, which have been recognized as a significant target in cancer therapy where, by damaging the mitochondria, it will cause irreparable cell death or apoptosis. Methods: We designed and produced novel hybrid nanostructures comprising a fluorescent semiconductor core (AgInS2, AIS) and cysteine-modified carboxymethylcellulose (termed thiomer, CMC_Cys) conjugated with mitochondria-targeting peptides (KLA) forming a macromolecular shell for combining bioimaging and for inducing brain cancer cell (U-87 MG) death. Results: The optical and physicochemical properties of the nanoconjugates demonstrated suitability as photoluminescent nanostructures for cell bioimaging and intracellular tracking. Additionally, the results proved a remarkable killing activity towards glioblastoma cells of cysteine-bearing CMC conjugates coupled with KLA peptides through the half-maximal effective concentration values, approximately 70-fold higher compared to the conjugate analogs without Cys residues. Moreover, these thiomer-based pro-apoptotic drug nanoconjugates displayed higher lethality against U-87 MG cancer cells than doxorubicin, a model drug in chemotherapy, although extremely toxic. Remarkably, these peptidomimetic nanohybrids demonstrated a relative "protective effect" regarding healthy cells while maintaining high killing activity towards malignant brain cells. Conclusion: These findings pave the way for developing hybrid nanoarchitectures applied as targeted multifunctional platforms for simultaneous imaging and therapy against cancer while minimizing the high systemic toxicity and side-effects of conventional drugs in anticancer chemotherapy.
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Affiliation(s)
| | | | | | - Herman S. Mansur
- Center of Nanoscience, Nanotechnology, and Innovation - CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais - UFMG, Av. Antônio Carlos, 6627 - Belo Horizonte/MG, Brazil
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12
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Tufani A, Qureshi A, Niazi JH. Iron oxide nanoparticles based magnetic luminescent quantum dots (MQDs) synthesis and biomedical/biological applications: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111545. [DOI: 10.1016/j.msec.2020.111545] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/11/2020] [Accepted: 09/20/2020] [Indexed: 12/20/2022]
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13
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Zhu Y, Ramadani E, Egap E. Thiol ligand capped quantum dot as an efficient and oxygen tolerance photoinitiator for aqueous phase radical polymerization and 3D printing under visible light. Polym Chem 2021. [DOI: 10.1039/d1py00705j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report here a rapid visible-light-induced radical polymerization in aqueous media photoinitiated by only ppm level thiol ligand capped cadmium selenide quantum dots. The photoinitiation system could be readily employed for photo 3D printing.
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Affiliation(s)
- Yifan Zhu
- Department of Materials Science and Nanoengineering, USA
| | - Emira Ramadani
- Department of Materials Science and Nanoengineering, USA
| | - Eilaf Egap
- Department of Materials Science and Nanoengineering, USA
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas, 77005, USA
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14
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Chandrasiri HB, Kim EB, Snee PT. Sterically Encumbered Tris(trialkylsilyl) Phosphine Precursors for Quantum Dot Synthesis. Inorg Chem 2020; 59:15928-15935. [PMID: 33040524 DOI: 10.1021/acs.inorgchem.0c02440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of nanomaterials with a narrow size distribution is challenging, especially for III-V semiconductor nanoparticles (also known as quantum dots). Concerning phosphides, this issue has been largely attributed the use of overly reactive precursors. The problem is exacerbated due to the narrow range of competent reagents for III-V semiconductor syntheses. We report the use of sterically encumbered tris(triethylsilyl) phosphine and tris(tributylsilyl) phosphine for InP quantum dot (QD) synthesis among others. The hypothesis was that these reagents are less reactive than the near-ubiquitous precursor tris(trimethylsilyl) phosphine and can be used to create more homogeneous materials. It was found that the InP products' quantum yields and emission color saturation (fwhm) were improved, but not to the levels realized in CdSe QDs. Regardless, these reagents have other positive attributes; they are less pyrophoric and can be applied toward the synthesis of II-V semiconductors and organophosphorus compounds. Concerning safe practices, we demonstrate that ammonium bifluoride is an effective replacement for highly toxic HF for the post-treatment of III-V semiconductor quantum dots.
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Affiliation(s)
- Hashini B Chandrasiri
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061 United States
| | - Eun Byoel Kim
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061 United States
| | - Preston T Snee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061 United States
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15
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Hottechamps J, Noblet T, Brans A, Humbert C, Dreesen L. How Quantum Dots Aggregation Enhances Förster Resonant Energy Transfer. Chemphyschem 2020; 21:853-862. [DOI: 10.1002/cphc.202000067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Julie Hottechamps
- GRASP-BiophotonicsCESAMUniversity of LiegeInstitute of Physics Allée du 6 août 17 4000 Liège Belgium
| | - Thomas Noblet
- GRASP-BiophotonicsCESAMUniversity of LiegeInstitute of Physics Allée du 6 août 17 4000 Liège Belgium
| | - Alain Brans
- Center for Protein Engineering (CIP)InBioSUniversity of Liege, Quartier Agora Allée du six Août 13, B6a 4000 Liège Belgium
| | - Christophe Humbert
- Université Paris-SaclayCNRSInstitut de Chimie Physique UMR 8000 91405 Orsay France
| | - Laurent Dreesen
- GRASP-BiophotonicsCESAMUniversity of LiegeInstitute of Physics Allée du 6 août 17 4000 Liège Belgium
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16
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Semiconductor quantum dot FRET: Untangling energy transfer mechanisms in bioanalytical assays. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115750] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Chen T, Li L, Lin X, Yang Z, Zou W, Chen Y, Xu J, Liu D, Wang X, Lin G. In vitro and in vivo immunotoxicity of PEGylated Cd-free CuInS2/ZnS quantum dots. Nanotoxicology 2020; 14:372-387. [DOI: 10.1080/17435390.2019.1708495] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Tingting Chen
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Li Li
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Xiaotan Lin
- Department of Family Planning, Second Clinical Medical College of Jinan University; Shenzhen People’s Hospital, Shenzhen, China
| | - Zhiwen Yang
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Wenyi Zou
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Yajing Chen
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Jiangyao Xu
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Dongmeng Liu
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Xiaomei Wang
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Guimiao Lin
- Department of Physiology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
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18
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Ratiometric fluorometric and visual determination of cyanide based on the use of carbon dots and gold nanoclusters. Mikrochim Acta 2019; 186:809. [DOI: 10.1007/s00604-019-3803-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 09/07/2019] [Indexed: 12/12/2022]
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