1
|
Travers T, Delhaye G, Werts MHV, Gindre D, Loumaigne M. On-chip light sheet illumination for nanoparticle tracking in microfluidic channels. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2229-2240. [PMID: 38567967 DOI: 10.1039/d3ay02290k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
A simple and inexpensive method is presented to efficiently integrate light sheet illumination in a microfluidic chip for dark-field microscopic tracking and sizing of nanoparticles. The basic idea is to insert an optical fiber inside a polydimethylsiloxane (PDMS) elastomer microfluidic chip and use it as a cylindrical lens. The optical fiber is in this case no longer seen as only an optical waveguide but as a ready-made micro-optical component that is inexpensive and easy to source. Upon insertion, the optical fiber stretches the PDMS microchannel walls, which has two effects. The first effect is to tone down the intrinsic ripples in the PDMS that would otherwise create inhomogeneities in the light sheet illumination. The second effect is to remove any obliqueness of the channel wall and constrain it to be strictly perpendicular to the propagation of the illumination, avoiding the formation of a prismatic diopter. Through calculations, numerical simulations and measurements, we show that the optimal configuration consists in creating a slowly converging light sheet so that its axial thickness is almost uniform along the tracked area. The corresponding thickness was estimated at 12 μm, or 10 times the depth of field of the optical system. This leads to an at least six-fold increase in the signal-to-noise ratio compared to the case without the cylindrical lens. This original light-sheet configuration is used to track and size spherical gold nanoparticles with diameters of 80 nm and 50 nm.
Collapse
Affiliation(s)
- Théo Travers
- Laboratoire MOLTECH-Anjou, UMR CNRS 6200, Univ Angers, SFR MATRIX, 2 Bd Lavoisier, 49000 Angers, France.
| | - Gaétan Delhaye
- Laboratoire MOLTECH-Anjou, UMR CNRS 6200, Univ Angers, SFR MATRIX, 2 Bd Lavoisier, 49000 Angers, France.
| | | | - Denis Gindre
- Laboratoire MOLTECH-Anjou, UMR CNRS 6200, Univ Angers, SFR MATRIX, 2 Bd Lavoisier, 49000 Angers, France.
| | - Matthieu Loumaigne
- Laboratoire MOLTECH-Anjou, UMR CNRS 6200, Univ Angers, SFR MATRIX, 2 Bd Lavoisier, 49000 Angers, France.
| |
Collapse
|
2
|
Li B, Chua SL, Yu D, Chan SH, Li A. Determination and Characterization of Gold Nanoparticles in Liquor Using Asymmetric Flow Field-Flow Fractionation Hyphenated with Inductively Coupled Plasma Mass Spectrometry. Molecules 2024; 29:248. [PMID: 38202831 PMCID: PMC10780710 DOI: 10.3390/molecules29010248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/23/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
The EU has approved the usage of gold as a food additive (E175) and it has been applied in numerous foods for coloring and decoration purposes. Different from the general assumption that edible gold is mainly present in the form of flakes or external coating in foods, this work demonstrated that gold nanoparticles (Au NPs) can be released from gold flakes and extracted under optimized conditions. To support future risk assessment associated with the exposure of Au NPs to human health, an effective approach was established in this study for both size characterization and mass determination of Au NPs released in a commercial gold-containing liquor using Asymmetric Flow Field-flow Fractionation (AF4) hyphenated with Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Our results showed that no Au NPs were detected in the original liquor product and only after ultrasonication for several minutes did Au NPs occur in the ultrasound-treated liquor. Particularly, Au NPs released in the liquor can be well extracted after 100-fold enrichment of gold flakes and the subsequent ultrasonication for 25 min. Size characterization of Au NPs was conducted by AF4-ICP-MS under calibration with Au NP standards. The gold particle sizes detected ranged from 8.3-398.0 nm and the dominant size of the released Au NPs was around 123.7 nm in the processed liquor. The mass concentration of gold particles determined in the liquor sample with gold flakes concentrated and subsequently sonicated was 48.1 μg L-1 by pre-channel calibration and the overall detection recoveries ranged over 82-95%. For the comparison control samples without ultrasonication, there was no detection of Au NPs. The established method was demonstrated to be useful for monitoring Au NPs in liquor and is possibly applied to other similar foodstuffs.
Collapse
Affiliation(s)
| | | | - Dingyi Yu
- National Centre for Food Science, Singapore Food Agency, 7 International Business Park, Singapore 609919, Singapore; (B.L.); (S.L.C.); (S.H.C.); (A.L.)
| | | | | |
Collapse
|
3
|
Le N, Boskovic TJM, Allard MM, Nick KE, Kwon SR, Perry CC. Gold Nanostar Characterization by Nanoparticle Tracking Analysis. ACS OMEGA 2022; 7:44677-44688. [PMID: 36530291 PMCID: PMC9753108 DOI: 10.1021/acsomega.2c03275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 10/06/2022] [Indexed: 06/17/2023]
Abstract
We demonstrate the application of nanoparticle tracking analysis (NTA) for the quantitative characterization of gold nanostars (GNSs). GNSs were synthesized by the seed-mediated growth method using triblock copolymer (TBP) gold nanoparticles (GNPs). These GNPs (≈ 10 nm) were synthesized from Au3+ (≈ 1 mM) in aqueous F127 (w/v 5%) containing the co-reductant ascorbic acid (≈ 2 mM). The GNS tip-to-core aspect ratio (AR) decreased when higher concentrations of GNPs were added to the growth solution. The AR dependency of GNSs on Au3+/Au(seed) concentration ratio implies that growth is partly under kinetic control. NTA measured GNS sizes, concentrations, and relative scattering intensities. Molar absorption coefficients ∼ 109-1010 M-1 cm-1 (ε400 nm) for each batch of GNSs were determined using the combination of extinction spectra and NTA concentrations for heterogeneous samples. NTA in combination with UV-vis was used to derive the linear relationships: (1) hydrodynamic size versus localized surface plasmon peak maxima; (2) ε400 nm versus localized surface plasmon peak maxima; (3) ε400 nm versus hydrodynamic size. NTA for quantitative characterization of anisotropic nanoparticles could lead to future applications, including heterogeneous colloidal catalysis.
Collapse
Affiliation(s)
- Natasha
T. Le
- Department
of Basic Sciences, School of Medicine, Loma
Linda University, 11085 Campus Street, Loma Linda, California92350, United States
| | - Timothy J. M. Boskovic
- Department
of Basic Sciences, School of Medicine, Loma
Linda University, 11085 Campus Street, Loma Linda, California92350, United States
| | - Marco M. Allard
- Department
of Chemistry and Biochemistry, College of Arts and Sciences, La Sierra University, 4500 Riverwalk Parkway, Riverside, California92505, United States
| | - Kevin E. Nick
- Department
of Basic Sciences, School of Medicine, Loma
Linda University, 11085 Campus Street, Loma Linda, California92350, United States
| | - So Ran Kwon
- School
of Dentistry, Loma Linda University, 11092 Anderson Street, Loma Linda, California92350, United States
| | - Christopher C. Perry
- Department
of Basic Sciences, School of Medicine, Loma
Linda University, 11085 Campus Street, Loma Linda, California92350, United States
| |
Collapse
|
4
|
Pincela Lins PM, Ribovski L, Corsi Antonio L, Altei WF, Sobreiro Selistre-de-Araújo H, Cancino-Bernardi J, Zucolotto V. Comparing extracellular vesicles and cell membranes as biocompatible coatings for gold nanorods: Implications for targeted theranostics. Eur J Pharm Biopharm 2022; 176:168-179. [PMID: 35643369 DOI: 10.1016/j.ejpb.2022.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 05/20/2022] [Accepted: 05/23/2022] [Indexed: 11/22/2022]
Abstract
Extracellular vesicles (EVs) and cell membrane nanoghosts are excellent coatings for nanomaterials, providing enhanced delivery in the target sites and evasion of the immune system. These cell-derived coatings allow the exploration of the delivery properties of the nanoparticles without stimulation of the immune system. Despite the advances reported on the use of EVs and cell-membrane coatings for nanomedicine applications, there are no standards to compare the benefits and main differences between these technologies. Here we investigated macrophage-derived EVs and cell membranes-coated gold nanorods and compared both systems in terms of target delivery in cancer and stromal cells. Our results reveal a higher tendency of EV-coated nanorods to interact with macrophages yet both EV and cell membrane-coated nanorods were internalized in the metastatic breast cancer cells. The main differences between these nanoparticles are related to the presence or absence of CD47 in the coating material, not usually addressed in EVs characterization. Our findings highlight important delivery differences exhibited by EVs- or cell membranes- coated nanorods which understanding may be important to the design and development of theragnostic nanomaterials using these coatings for target delivery.
Collapse
Affiliation(s)
- Paula Maria Pincela Lins
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, Brazil.
| | - Laís Ribovski
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - Luana Corsi Antonio
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - Wanessa Fernanda Altei
- Laboratory of Biochemistry and Molecular Biology, Department of Physiological Sciences, Federal University of São Carlos, SP, Brazil; Molecular Oncology Research Center, Barretos Cancer Hospital, SP, Brazil
| | | | - Juliana Cancino-Bernardi
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, Brazil
| | - Valtencir Zucolotto
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos, University of São Paulo, São Carlos, SP, Brazil; Institute of Advanced Studies, University of São Paulo, São Carlos, SP, Brazil
| |
Collapse
|
5
|
Chen X, Chen Y, Fu B, Li K, Huang D, Zheng C, Liu M, Yang DP. Eggshell membrane-mimicking multifunctional nanofiber for in-situ skin wound healing. Int J Biol Macromol 2022; 210:139-151. [PMID: 35537580 DOI: 10.1016/j.ijbiomac.2022.04.212] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 11/05/2022]
Abstract
Eggshell membrane is a naturally-occurring protective barrier layer for chickens' incubation and shows the close similarity with extracellular matrix. To fully explore and utilize its' structure and active components via a mimicking way will be of great interest for wounds healing. Herein, the well-dispersed CuS nanoparticles were prepared by using eggshell membranes as templates with strong near-infrared absorption and photothermal properties. Furthermore, the as-prepared solution was combined with polyvinyl pyrrolidone and chitosan-derived fluorescent carbon dots for the mimetic synthesis of multifunctional nanofibrous membrane by a hand-held electrospinning device, which has the merits of in-situ operation, the extracellular matrix (ECM)-like architecture, hemostatic, radical scavenging, antibacterial, as well as accelerated healing of skin injury, etc. The electrospun-nanofiber membrane with optimal addition of 100 mg/L CuS nanoparticles was confirmed to be noncytotoxic on human fibroblasts and showed strong antibacterial activities against S. aureus and E. coli under NIR irradiation (980 nm). In addition, the radical scavenging ability was also proved by DPPH experiments. The animal experiments revealed that the nanofiber membrane could accelerate the wound healing process. The work lays down a simple and environmentally-friendly approach for the fabrication and development of promising wound healing materials in skin tissue engineering applications.
Collapse
Affiliation(s)
- Xiaofang Chen
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
| | - Yaqin Chen
- Key Laboratory of Chemical Materials and Green Nanotechnology, College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, Fujian Province, China
| | - Bofei Fu
- Key Laboratory of Chemical Materials and Green Nanotechnology, College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, Fujian Province, China
| | - Kunjie Li
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
| | - Donghong Huang
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
| | - Chaohui Zheng
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
| | - Minghuan Liu
- Key Laboratory of Chemical Materials and Green Nanotechnology, College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, Fujian Province, China.
| | - Da-Peng Yang
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China; Key Laboratory of Chemical Materials and Green Nanotechnology, College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, Fujian Province, China.
| |
Collapse
|
6
|
Hoffmann WH, Gao B, Mulkerns NMC, Hinton AG, Hanna S, Hall SR, Gersen H. Determining nanorod dimensions in dispersion with size anisotropy nanoparticle tracking analysis. Phys Chem Chem Phys 2022; 24:13040-13048. [PMID: 35583236 DOI: 10.1039/d2cp00432a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Control over nanorod dimensions is critical to their application, requiring fast, robust characterisation of their volume and aspect ratio whilst in their working medium. Here, we present an extension of Nanoparticle Tracking Analysis which determines the aspect ratio of nanoparticles from the polarisation state of scattered light in addition to a hydrodynamic diameter from Brownian motion. These data, in principle, permit the determination of nanorod dimensions of any composition using Nanoparticle Tracking Analysis. The results are compared with transmission electron microscopy and show that this technique can additionally determine the aggregation state of the nanorod dispersion if single nanorod dimensions are determined with a complementary technique. We also show it is possible to differentiate nanoparticles of similar hydrodynamic diameter by their depolarised scattering. Finally, we assess the ability of the technique to output nanorod dimensions and suggest ways to further improve the approach. This technique will enable rapid characterisation of nanorods in suspension, which are important tools for nanotechnology.
Collapse
Affiliation(s)
- William H Hoffmann
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK. .,Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK.,School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK
| | - Bo Gao
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK.
| | - Niall M C Mulkerns
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK. .,Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| | - Alexander G Hinton
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK. .,School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK
| | - Simon Hanna
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK.
| | - Simon R Hall
- Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK.,School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK
| | - Henkjan Gersen
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK. .,Bristol Centre for Functional Nanomaterials, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK
| |
Collapse
|
7
|
Velimirovic M, Pancaro A, Mildner R, Georgiou PG, Tirez K, Nelissen I, Johann C, Gibson MI, Vanhaecke F. Characterization of Gold Nanorods Conjugated with Synthetic Glycopolymers Using an Analytical Approach Based on spICP-SFMS and EAF4-MALS. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2720. [PMID: 34685161 PMCID: PMC8539460 DOI: 10.3390/nano11102720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 12/13/2022]
Abstract
A new comprehensive analytical approach based on single-particle inductively coupled plasma-sector field mass spectrometry (spICP-SFMS) and electrical asymmetric-flow field-flow-fractionation combined with multi-angle light scattering detection (EAF4-MALS) has been examined for the characterization of galactosamine-terminated poly(N-hydroxyethyl acrylamide)-coated gold nanorods (GNRs) in two different degrees of polymerization (DP) by tuning the feed ratio (short: DP 35; long: DP 60). spICP-SFMS provided information on the particle number concentration, size and size distribution of the GNRs, and was found to be useful as an orthogonal method for fast characterization of GNRs. Glycoconjugated GNRs were separated and characterized via EAF4-MALS in terms of their size and charge and compared to the bare GNRs. In contrast to spICP-SFMS, EAF4-MALS was also able of providing an estimate of the thickness of the glycopolymer coating on the GNRs surface.
Collapse
Affiliation(s)
- Milica Velimirovic
- Department of Chemistry, Atomic & Mass Spectrometry–A&MS Research Group, Campus Sterre, Ghent University, Krijgslaan 281-S12, 9000 Ghent, Belgium;
- Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (A.P.); (K.T.); (I.N.)
| | - Alessia Pancaro
- Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (A.P.); (K.T.); (I.N.)
- Advanced Optical Microscopy Centre and Biomedical Research Institute, Hasselt University, 3590 Diepenbeek, Belgium
| | - Robert Mildner
- Wyatt Technology Europe GmbH, Hochstrasse 12a, 56307 Dernbach, Germany; (R.M.); (C.J.)
| | - Panagiotis G. Georgiou
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; (P.G.G.); (M.I.G.)
| | - Kristof Tirez
- Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (A.P.); (K.T.); (I.N.)
| | - Inge Nelissen
- Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (A.P.); (K.T.); (I.N.)
| | - Christoph Johann
- Wyatt Technology Europe GmbH, Hochstrasse 12a, 56307 Dernbach, Germany; (R.M.); (C.J.)
| | - Matthew I. Gibson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; (P.G.G.); (M.I.G.)
- Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
| | - Frank Vanhaecke
- Department of Chemistry, Atomic & Mass Spectrometry–A&MS Research Group, Campus Sterre, Ghent University, Krijgslaan 281-S12, 9000 Ghent, Belgium;
| |
Collapse
|
8
|
Liu JL, Zhang BB, Jia AQ, Xin ZF, Zhang QF. Functionalized resorcinarene as organic template for preparation of gold nanoparticles. J INCL PHENOM MACRO 2020. [DOI: 10.1007/s10847-020-01030-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
9
|
Shan B, Wang H, Li L, Zhou G, Wen Y, Chen M, Li M. Rationally designed dual-plasmonic gold nanorod@cuprous selenide hybrid heterostructures by regioselective overgrowth for in vivo photothermal tumor ablation in the second near-infrared biowindow. Am J Cancer Res 2020; 10:11656-11672. [PMID: 33052239 PMCID: PMC7546011 DOI: 10.7150/thno.51287] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/07/2020] [Indexed: 12/20/2022] Open
Abstract
NIR-II plasmonic materials offer multiple functionalities for in vivo biomedical applications, such as photothermal tumor ablation, surface-enhanced Raman scattering biosensing, photoacoustic imaging, and drug carriers. However, integration of noble metals and plasmonic semiconductors is greatly challenging because of the large lattice-mismatch. This study reports the regioselective overgrowth of Cu2-xSe on gold nanorods (GNRs) for preparation of dual-plasmonic GNR@Cu2-xSe hybrid heterostructures with tunable NIR-II plasmon resonance absorption for in vivo photothermal tumor ablation. Methods: The regioselective deposition of amorphous Se and its subsequent conversion into Cu2-xSe on the GNRs are performed by altering capping agents to produce the GNR@Cu2-xSe heterostructures of various morphologies. Their photothermal performances for NIR-II photothermal tumor ablation are evaluated both in vitro and in vivo. Results: We find that the lateral one- and two-side deposition, conformal core-shell coating and island growth of Cu2-xSe on the GNRs can be achieved using different capping agents. The Cu2-xSe domain size in these hybrids can be effectively adjusted by the SeO2 concentration, thereby tuning the NIR-II plasmon bands. A photothermal conversion efficiency up to 58-85% and superior photostability of these dual-plasmonic hybrids can be achieved under the NIR-II laser. Results also show that the photothermal conversion efficiency is dependent on the proportion of optical absorption converted into heat; however, the temperature rise is tightly related to the concentration of their constituents. The excellent NIR-II photothermal effect is further verified in the following in vitro and in vivo experiments. Conclusions: This study achieves one-side or two-side deposition, conformal core-shell coating, and island deposition of Cu2-xSe on GNRs for GNR@Cu2-xSe heterostructures with NIR-II plasmonic absorption, and further demonstrates their excellent NIR-II photothermal tumor ablation in vivo. This study provides a promising strategy for the rational design of NIR-II dual-plasmonic heterostructures and highlights their therapeutic in vivo potential.
Collapse
|
10
|
Wang J, Thomas M, Lin P, Cheng JX, Matei DE, Wei A. siRNA Delivery Using Dithiocarbamate-Anchored Oligonucleotides on Gold Nanorods. Bioconjug Chem 2018; 30:443-453. [PMID: 30395447 DOI: 10.1021/acs.bioconjchem.8b00723] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We present a robust method for loading small interfering RNA (siRNA) duplexes onto the surfaces of gold nanorods (GNRs) at high density, using near-infrared laser irradiation to trigger their intracellular release with subsequent knockdown activity. Citrate-stabilized GNRs were first coated with oleylsulfobetaine, a zwitterionic amphiphile with low cytotoxicity, which produced stable dispersions at high ionic strength. Amine-modified siRNA duplexes were converted into dithiocarbamate (DTC) ligands and adsorbed onto GNR surfaces in a single incubation step at 0.5 M NaCl, simplifying the charge screening process. The DTC anchors were effective at minimizing premature siRNA desorption and release, a common but often overlooked problem in the use of gold nanoparticles as oligonucleotide carriers. The activity of GNR-siRNA complexes was evaluated systematically against an eGFP-producing ovarian cancer cell line (SKOV-3) using folate receptor-mediated uptake. Efficient knockdown was achieved by using a femtosecond-pulsed laser source to release DTC-anchored siRNA, with essentially no contributions from spontaneous (dark) RNA desorption. GNRs coated with thiol-anchored siRNA duplexes were less effective and also permitted low levels of knockdown activity without photothermal activation. Optimized siRNA delivery conditions were applied toward the targeted knockdown of transglutaminase 2, whose expression is associated with the progression of recurrent ovarian cancer, with a reduction in activity of >80% achieved after a single pulsed laser treatment.
Collapse
Affiliation(s)
- Jianxin Wang
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette , Indiana 47907 , United States
| | - Mini Thomas
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette , Indiana 47907 , United States
| | - Peng Lin
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette , Indiana 47907 , United States.,Department of Biomedical Engineering , Purdue University , 206 South Martin Jischke Drive , West Lafayette , Indiana 47907 , United States
| | - Ji-Xin Cheng
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette , Indiana 47907 , United States.,Department of Biomedical Engineering , Purdue University , 206 South Martin Jischke Drive , West Lafayette , Indiana 47907 , United States
| | - Daniela E Matei
- Department of Obstetrics and Gynecology , Northwestern University Feinberg School of Medicine , 250 East Superior Street , Chicago , Illinois 60611 , United States.,Robert H. Lurie Comprehensive Cancer Center , Chicago , Illinois 60611 , United States
| | - Alexander Wei
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette , Indiana 47907 , United States.,Department of Materials Science and Engineering , Purdue University , 701 West Stadium Avenue , West Lafayette , Indiana 47907 , United States
| |
Collapse
|
11
|
Pawłowska S, Kowalewski TA, Pierini F. Fibrous polymer nanomaterials for biomedical applications and their transport by fluids: an overview. SOFT MATTER 2018; 14:8421-8444. [PMID: 30339174 DOI: 10.1039/c8sm01269e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Over the past few decades, there has been strong interest in the development of new micro- and nanomaterials for biomedical applications. Their use in the form of capsules, particles or filaments suspended in body fluids is associated with conformational changes and hydrodynamic interactions responsible for their transport. The dynamics of fibres or other long objects in Poiseuille flow is one of the fundamental problems in a variety of biomedical contexts, such as mobility of proteins, dynamics of DNA or other biological polymers, cell movement, tissue engineering, and drug delivery. In this review, we discuss several important applications of micro and nanoobjects in this field and try to understand the problems of their transport in flow resulting from material-environment interactions in typical, crowded, and complex biological fluids. Our aim is to elucidate the relationship between the nano- and microscopic structures of elongated polymer particles and their flow properties, thus opening the possibility to design nanoobjects that can be efficiently transported by body fluids for targeted drug release or local tissue regeneration.
Collapse
Affiliation(s)
- S Pawłowska
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland.
| | | | | |
Collapse
|
12
|
Mahendran G, Ponnuchamy K. Coumarin–gold nanoparticle bioconjugates: preparation, antioxidant, and cytotoxic effects against MCF-7 breast cancer cells. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0816-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
13
|
Ranjani A, Gopinath PM, Ananth S, Narchonai G, Santhanam P, Thajuddin N, Dhanasekaran D. Multidimensional dose–response toxicity exploration of silver nanoparticles from Nocardiopsis flavascens RD30. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0824-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
14
|
Luo D, Wang F, Chen J, Zhang F, Yu L, Wang D, Willson RC, Yang Z, Ren Z. Poly(sodium 4-styrenesulfonate) Stabilized Janus Nanosheets in Brine with Retained Amphiphilicity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3694-3700. [PMID: 29509429 DOI: 10.1021/acs.langmuir.8b00397] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Maintaining colloidal stability in unfriendly environments while retaining surface chemical properties is challenging for fundamental science and crucial for many applications. Here, we report for the first time that by using a low concentration of poly(sodium 4-styrenesulfonate) (PSS), graphene-based amphiphilic Janus nanosheets (AJNs) can be stabilized in high salt brine (3 wt % NaCl and 0.5 wt % CaCl2), whereas the interfacial behavior of the nanosheets is not affected. The adsorption of PSS on the hydrophilic and hydrophobic surfaces of AJNs in brine was investigated experimentally and by molecular dynamics simulations. Simulations further showed that the spatial configuration of absorbed PSS molecules with sulfonate functional groups facing outward favored the generation of electrosteric repulsive interactions. Calculations of the interaction energy between PSS molecules and the nanosheet revealed surface charge as a key parameter to stabilize AJNs in the salt environment, as demonstrated by the case of graphene oxide with higher surface charge. Simulations were also used to examine the interfacial behavior of graphene-based AJNs in biphasic systems. The AJNs, which exhibited asymmetry in surface wettability, remained at the oil/brine interface because of PSS detachment from the hydrophobic surface. The results were subsequently experimentally confirmed, consistent with our previously reported graphene-based AJN fluid prepared in fresh water. The process was thermodynamically supported by the demonstrated negative change of Gibbs free energy. We believe that such a strategy could benefit for the stabilization of other AJNs with surface chemical accessibility under harsh conditions.
Collapse
Affiliation(s)
- Dan Luo
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation , Southwest Petroleum University , Chengdu , Sichuan 610500 , China
| | | | | | | | - Luo Yu
- College of Physical Science and Technology , Central China Normal University , Wuhan 430079 , China
| | | | | | - Zhaozhong Yang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation , Southwest Petroleum University , Chengdu , Sichuan 610500 , China
| | | |
Collapse
|
15
|
Dominguez-Medina S, Chen S, Blankenburg J, Swanglap P, Landes CF, Link S. Measuring the Hydrodynamic Size of Nanoparticles Using Fluctuation Correlation Spectroscopy. Annu Rev Phys Chem 2017; 67:489-514. [PMID: 27215820 DOI: 10.1146/annurev-physchem-040214-121510] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Fluctuation correlation spectroscopy (FCS) is a well-established analytical technique traditionally used to monitor molecular diffusion in dilute solutions, the dynamics of chemical reactions, and molecular processes inside living cells. In this review, we present the recent use of FCS for measuring the size of colloidal nanoparticles in solution. We review the theoretical basis and experimental implementation of this technique and its advantages and limitations. In particular, we show examples of the use of FCS to measure the size of gold nanoparticles, monitor the rotational dynamics of gold nanorods, and investigate the formation of protein coronas on nanoparticles.
Collapse
Affiliation(s)
| | - Sishan Chen
- Department of Chemistry, Rice University, Houston, Texas 77005;
| | - Jan Blankenburg
- Department of Chemistry, Rice University, Houston, Texas 77005;
| | | | - Christy F Landes
- Department of Chemistry, Rice University, Houston, Texas 77005; .,Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005.,Laboratory for Nanophotonics, Rice University, Houston, Texas 77005.,Smalley-Curl Institute, Rice University, Houston, Texas 77005
| | - Stephan Link
- Department of Chemistry, Rice University, Houston, Texas 77005; .,Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005.,Laboratory for Nanophotonics, Rice University, Houston, Texas 77005.,Smalley-Curl Institute, Rice University, Houston, Texas 77005
| |
Collapse
|
16
|
Kadasala NR, Lin L, Gilpin C, Wei A. Eco-friendly (green) synthesis of magnetically active gold nanoclusters. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2017; 18:210-218. [PMID: 28458743 PMCID: PMC5402797 DOI: 10.1080/14686996.2017.1290492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 01/31/2017] [Accepted: 01/31/2017] [Indexed: 06/07/2023]
Abstract
Au-FexOy composite nanoparticles (NPs) are of great technological interest due to their combined optical and magnetic properties. However, typical syntheses are neither simple nor ecologically friendly, creating a challenging situation for process scale-up. Here we describe conditions for preparing Au-FexOy NPs in aqueous solutions and at ambient temperatures, without resorting to solvents or amphiphilic surfactants with poor sustainability profiles. These magnetic gold nanoclusters (MGNCs) are prepared in practical yields with average sizes slightly below 100 nm, and surface plasmon resonances that extend to near-infrared wavelengths, and sufficient magnetic moment (up to 6 emu g-1) to permit collection within minutes by handheld magnets. The MGNCs also produce significant photoluminescence when excited at 488 nm. Energy dispersive X-ray (EDX) analysis indicates a relatively even distribution of Fe within the MGNCs, as opposed to a central magnetic core.
Collapse
Affiliation(s)
| | - Lu Lin
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
| | | | - Alexander Wei
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
| |
Collapse
|
17
|
Burrows ND, Lin W, Hinman JG, Dennison JM, Vartanian AM, Abadeer NS, Grzincic EM, Jacob LM, Li J, Murphy CJ. Surface Chemistry of Gold Nanorods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9905-9921. [PMID: 27568788 DOI: 10.1021/acs.langmuir.6b02706] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Gold nanorods have garnered a great deal of scientific interest because of their unique optical properties, and they have the potential to greatly impact many areas of science and technology. Understanding the structure and chemical makeup of their surfaces as well as how to tailor them is of paramount importance in the development of their successful applications. This Feature Article reviews the current understanding of the surface chemistry of as-synthesized gold nanorods, methods of tailoring the surface chemistry of gold nanorods with various inorganic and organic coatings/ligands, and the techniques employed to characterize ligands on the surface of gold nanorods as well as the associated measurement challenges. Specifically, we address the challenges of determining how thick the ligand shell is, how many ligands per nanorod are present on the surface, and where the ligands are located in regiospecific and mixed-ligand systems. We conclude with an outlook on the development of the surface chemistry of gold nanorods leading to the development of a synthetic nanoparticle surface chemistry toolbox analogous to that of synthetic organic chemistry and natural product synthesis.
Collapse
Affiliation(s)
- Nathan D Burrows
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Wayne Lin
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Joshua G Hinman
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Jordan M Dennison
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Ariane M Vartanian
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Nardine S Abadeer
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Elissa M Grzincic
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Lisa M Jacob
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Ji Li
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Catherine J Murphy
- Department of Chemistry, 600 S. Mathews Avenue, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| |
Collapse
|
18
|
High colloidal stability of gold nanorods coated with a peptide-ethylene glycol: Analysis by cyanide-mediated etching and nanoparticle tracking analysis. Colloids Surf B Biointerfaces 2016; 146:871-8. [DOI: 10.1016/j.colsurfb.2016.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 06/29/2016] [Accepted: 07/03/2016] [Indexed: 10/21/2022]
|
19
|
Robinson DA, Duay J, Kondajji AM, Stevenson KJ. Mechanistic aspects of hydrazine-induced Pt colloid instability and monitoring aggregation kinetics with nanoparticle impact electroanalysis. Faraday Discuss 2016; 193:293-312. [DOI: 10.1039/c6fd00121a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we investigate the mechanistic aspects of Pt nanoparticle (NP) aggregation in solutions typically used for detecting NP/electrode impacts by electrocatalytic amplification (ECA). We previously proposed a general mechanism for Pt colloid destabilization that involved the participation of both the hydrazine redox probe and the pH buffer species as coagulants. Herein the Pt NP coagulation and aggregation mechanisms were further investigated with microscopic kinetic NP concentration monitoring and zeta potential measurements using nanoparticle tracking analysis (NTA), as well as open circuit potential experiments with a citrate-treated polycrystalline Pt surface to assess electrical double layer potential. After considering the combined results of these experiments we propose that the colloidal stability of citrate-capped platinum nanoparticles involves much more than the typical physicochemical interactions predicted by DLVO theory. A structure based on intermolecular H-bonding in the citrate capping layer is the most plausible explanation for the exceptional stability of large Pt NPs in high ionic strength buffers. Thus, the mechanism of Pt NP aggregation includes specific reactive contributions from hydrazine. The catalytic decomposition of hydrazine, in particular, is thought to occur to some extent at the citrate-coated Pt surface while the citrate remains adsorbed. Evolved gases such as ammonia and possible surface bound intermediates from Pt-catalyzed decomposition of hydrazine may disrupt the stability of the citrate layer, causing colloidal instability and thus promoting Pt NP coagulation. In the closing section, we demonstrate nanoparticle impact electroanalysis by ECA detection as a method to quantify Pt NP concentration with adequate time resolution for monitoring the kinetics of Pt NP coagulation.
Collapse
Affiliation(s)
- D. A. Robinson
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
| | - J. Duay
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
| | - A. M. Kondajji
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
| | - K. J. Stevenson
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
| |
Collapse
|
20
|
SoRelle ED, Liba O, Hussain Z, Gambhir M, de la Zerda A. Biofunctionalization of Large Gold Nanorods Realizes Ultrahigh-Sensitivity Optical Imaging Agents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12339-47. [PMID: 26477361 PMCID: PMC4963153 DOI: 10.1021/acs.langmuir.5b02902] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Gold nanorods (GNRs, ∼ 50 × 15 nm) have been used ubiquitously in biomedicine for their optical properties, and many methods of GNR biofunctionalization have been described. Recently, the synthesis of larger-than-usual GNRs (LGNRs, ∼ 100 × 30 nm) has been demonstrated. However, LGNRs have not been biofunctionalized and therefore remain absent from biomedical literature to date. Here we report the successful biofunctionalization of LGNRs, which produces highly stable particles that exhibit a narrow spectral peak (FWHM ∼100 nm). We further demonstrated that functionalized LGNRs can be used as highly sensitive scattering contrast agents by detecting individual LGNRs in clear liquids. Owing to their increased optical cross sections, we found that LGNRs exhibited up to 32-fold greater backscattering than conventional GNRs. We leveraged these enhanced optical properties to detect LGNRs in the vasculature of live tumor-bearing mice. With LGNR contrast enhancement, we were able to visualize tumor blood vessels at depths that were otherwise undetectable. We expect that the particles reported herein will enable immediate sensitivity improvements in a wide array of biomedical imaging and sensing techniques that rely on conventional GNRs.
Collapse
Affiliation(s)
- Elliott D SoRelle
- Molecular Imaging Program at Stanford, Bio-X Program, ‡Biophysics Program, §Departments of Structural Biology, and ∥Electrical Engineering, Stanford University , Palo Alto, California 94305, United States
| | - Orly Liba
- Molecular Imaging Program at Stanford, Bio-X Program, ‡Biophysics Program, §Departments of Structural Biology, and ∥Electrical Engineering, Stanford University , Palo Alto, California 94305, United States
| | - Zeshan Hussain
- Molecular Imaging Program at Stanford, Bio-X Program, ‡Biophysics Program, §Departments of Structural Biology, and ∥Electrical Engineering, Stanford University , Palo Alto, California 94305, United States
| | - Milan Gambhir
- Molecular Imaging Program at Stanford, Bio-X Program, ‡Biophysics Program, §Departments of Structural Biology, and ∥Electrical Engineering, Stanford University , Palo Alto, California 94305, United States
| | - Adam de la Zerda
- Molecular Imaging Program at Stanford, Bio-X Program, ‡Biophysics Program, §Departments of Structural Biology, and ∥Electrical Engineering, Stanford University , Palo Alto, California 94305, United States
| |
Collapse
|
21
|
Mehtala J, Zemlyanov DY, Max JP, Kadasala N, Zhao S, Wei A. Citrate-stabilized gold nanorods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13727-30. [PMID: 25254292 PMCID: PMC4334258 DOI: 10.1021/la5029542] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Stable aqueous dispersions of citrate-stabilized gold nanorods (cit-GNRs) have been prepared in scalable fashion by surfactant exchange from cetyltrimethylammonium bromide (CTAB)-stabilized GNRs, using polystyrenesulfonate (PSS) as a detergent. The surfactant exchange process was monitored by infrared spectroscopy, surface-enhanced Raman scattering (SERS), and X-ray photoelectron spectroscopy (XPS). The latter established the quantitative displacement of CTAB (by PSS) and of PSS (by citrate). The Cit-GNRs are indefinitely stable at low ionic strength, and are conducive to further ligand exchange without loss of dispersion stability. The reliability of the surface exchange process supports the systematic analysis of ligand structure on the hydrodynamic size of GNRs, as described in a companion paper.
Collapse
|