251
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Das SK, Liu Y, Yeom S, Kim DY, Richards CI. Single-particle fluorescence intensity fluctuations of carbon nanodots. NANO LETTERS 2014; 14:620-5. [PMID: 24397573 DOI: 10.1021/nl403820m] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Fluorescent carbon nanodots (CNDs) were synthesized in oxidized and reduced forms and were analyzed at the single-particle level. Images of single CNDs at different excitation energies revealed significant heterogeneity in the lower energy trap sites between particles. We observed that a high percentage of reduced CND particles transitioned between multiple fluorescence intensity levels indicative of multichromophoric systems. Despite this behavior, individual CNDs exhibit single-step photobleaching and transient blinking to the background level suggesting single-molecule behavior.
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Affiliation(s)
- Somes K Das
- Department of Chemistry, University of Kentucky , 505 Rose Street, Lexington, Kentucky, United States
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252
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Trusheim ME, Li L, Laraoui A, Chen EH, Bakhru H, Schröder T, Gaathon O, Meriles CA, Englund D. Scalable fabrication of high purity diamond nanocrystals with long-spin-coherence nitrogen vacancy centers. NANO LETTERS 2014; 14:32-36. [PMID: 24199716 DOI: 10.1021/nl402799u] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The combination of long spin coherence time and nanoscale size has made nitrogen vacancy (NV) centers in nanodiamonds the subject of much interest for quantum information and sensing applications. However, currently available high-pressure high-temperature (HPHT) nanodiamonds have a high concentration of paramagnetic impurities that limit their spin coherence time to the order of microseconds, less than 1% of that observed in bulk diamond. In this work, we use a porous metal mask and a reactive ion etching process to fabricate nanocrystals from high-purity chemical vapor deposition (CVD) diamond. We show that NV centers in these CVD nanodiamonds exhibit record-long spin coherence times in excess of 200 μs, enabling magnetic field sensitivities of 290 nT Hz(-1/2) with the spatial resolution characteristic of a 50 nm diameter probe.
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Affiliation(s)
- Matthew E Trusheim
- Department of Electrical Engineering and Computer Science, MIT , Cambridge, Massachusetts 02139, United States
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253
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Girard HA, El-Kharbachi A, Garcia-Argote S, Petit T, Bergonzo P, Rousseau B, Arnault JC. Tritium labeling of detonation nanodiamonds. Chem Commun (Camb) 2014; 50:2916-8. [DOI: 10.1039/c3cc49653h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The radioactive labeling of detonation nanodiamonds was efficiently achieved using a tritium microwave plasma.
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Affiliation(s)
| | | | | | - Tristan Petit
- CEA
- LIST
- Diamond Sensors Laboratory
- F-91191 Gif-sur-Yvette, France
| | | | - Bernard Rousseau
- CEA
- iBiTec-S
- Tritium Labeling Laboratory
- F-91191 Gif-sur-Yvette, France
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254
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Fucikova A, Valenta J, Pelant I, Kalbacova MH, Broz A, Rezek B, Kromka A, Bakaeva Z. Silicon nanocrystals and nanodiamonds in live cells: photoluminescence characteristics, cytotoxicity and interaction with cell cytoskeleton. RSC Adv 2014. [DOI: 10.1039/c3ra47574c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Our study on biological interaction of silicon nanocrystals (a) and nanodiamonds (b) with cells encourages their use in human medicine.
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Affiliation(s)
- A. Fucikova
- Department of Chemical Physics and Optics
- Faculty of Mathematics and Physics
- Charles University
- Prague 2, Czech Republic
| | - J. Valenta
- Department of Chemical Physics and Optics
- Faculty of Mathematics and Physics
- Charles University
- Prague 2, Czech Republic
| | - I. Pelant
- Institute of Physics AS CR
- v. v. i
- Prague 6, Czech Republic
| | - M. Hubalek Kalbacova
- Institute of Inherited Metabolic Disorders
- 1st Faculty of Medicine
- Charles University
- Prague, Czech Republic
| | - A. Broz
- Institute of Inherited Metabolic Disorders
- 1st Faculty of Medicine
- Charles University
- Prague, Czech Republic
| | - B. Rezek
- Institute of Physics AS CR
- v. v. i
- Prague 6, Czech Republic
| | - A. Kromka
- Institute of Physics AS CR
- v. v. i
- Prague 6, Czech Republic
| | - Z. Bakaeva
- Institute of Macromolecular Chemistry AV CR
- v. v. i
- Prague 6, Czech Republic
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255
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Goodwin CM, Lewis GG, Fiorella A, Ellison MD, Kohn R. Synthesis and toxicity testing of cysteine-functionalized single-walled carbon nanotubes with Caenorhabditis elegans. RSC Adv 2014. [DOI: 10.1039/c3ra44888f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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256
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257
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Scharf A, Piechulek A, von Mikecz A. Effect of nanoparticles on the biochemical and behavioral aging phenotype of the nematode Caenorhabditis elegans. ACS NANO 2013; 7:10695-703. [PMID: 24256469 DOI: 10.1021/nn403443r] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Invertebrate animal models such as the nematode Caenorhabditis elegans (C. elegans) are increasingly used in nanotechnological applications. Research in this area covers a wide range from remote control of worm behavior by nanoparticles (NPs) to evaluation of organismal nanomaterial safety. Despite of the broad spectrum of investigated NP-bio interactions, little is known about the role of nanomaterials with respect to aging processes in C. elegans. We trace NPs in single cells of adult C. elegans and correlate particle distribution with the worm's metabolism and organ function. By confocal microscopy analysis of fluorescently labeled NPs in living worms, we identify two entry portals for the uptake of nanomaterials via the pharynx to the intestinal system and via the vulva to the reproductive system. NPs are localized throughout the cytoplasm and the cell nucleus in single intestinal, and vulval B and D cells. Silica NPs induce an untimely accumulation of insoluble ubiquitinated proteins, nuclear amyloid and reduction of pharyngeal pumping that taken together constitute a premature aging phenotype of C. elegans on the molecular and behavioral level, respectively. Screening of different nanomaterials for their effects on protein solubility shows that polystyrene or silver NPs do not induce accumulation of ubiquitinated proteins suggesting that alteration of protein homeostasis is a unique property of silica NPs. The nematode C. elegans represents an excellent model to investigate the effect of different types of nanomaterials on aging at the molecule, cell, and whole organism level.
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Affiliation(s)
- Andrea Scharf
- IUF-Leibniz Research Institute for Environmental Medicine, Heinrich-Heine-University Duesseldorf , Auf'm Hennekamp 50, 40225 Düsseldorf, Germany
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258
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Wang F, Liu J. Nanodiamond decorated liposomes as highly biocompatible delivery vehicles and a comparison with carbon nanotubes and graphene oxide. NANOSCALE 2013; 5:12375-82. [PMID: 24162019 DOI: 10.1039/c3nr04143c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Studying interactions between nano-carbons and lipid membranes is important for multiplexed drug delivery, device fabrication and for understanding toxicity. Herein, we report that nanodiamond (ND, sp(3) carbon) forms a complex with highly biocompatible zwitterionic liposomes based on hydrogen bonding, which is confirmed by pH-dependent and urea-dependent assays. Despite such weak interaction, the complex is highly stable. Comparisons were made with two sp(2) carbons: nanoscale graphene oxide (NGO) and carbon nanotubes (CNTs), where CNT adsorption is the weakest. Adsorption of the nano-carbons does not induce liposome leakage or affect lipid phase transition temperature. Therefore, the potential toxicity of nano-carbons is unlikely to be related to direct membrane damage. ND facilitates cellular uptake of liposomes and co-delivery of negatively charged calcein and positively charged doxorubicin has been demonstrated. ND has the lowest toxicity, while CNTs and NGO are slightly more toxic. The effect of introducing fusogenic lipids and cholesterol was further studied to understand the effect of lipid formulation.
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Affiliation(s)
- Feng Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1.
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259
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Cao M, Deng X, Su S, Zhang F, Xiao X, Hu Q, Fu Y, Yang BB, Wu Y, Sheng W, Zeng Y. Protamine sulfate-nanodiamond hybrid nanoparticles as a vector for MiR-203 restoration in esophageal carcinoma cells. NANOSCALE 2013; 5:12120-12125. [PMID: 24154605 DOI: 10.1039/c3nr04056a] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report an innovative approach for miRNA-203 delivery in esophageal cancer cells using protamine sulphate (PS)-nanodiamond (ND) nanoparticles. The efficient delivery of miR-203 significantly suppressed the proliferation and migration of cancer cells through targeting Ran and ΔNp63, exhibiting a great potential for PS@ND nanoparticles in miRNA-based cancer therapy.
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Affiliation(s)
- Minjun Cao
- College of Life Science and Bioengineering, Beijing University of Technology, No. 100 Pingleyuan, Beijing, 100124, P.R. China.
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260
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Khanal M, Vausselin T, Barras A, Bande O, Turcheniuk K, Benazza M, Zaitsev V, Teodorescu CM, Boukherroub R, Siriwardena A, Dubuisson J, Szunerits S. Phenylboronic-acid-modified nanoparticles: potential antiviral therapeutics. ACS APPLIED MATERIALS & INTERFACES 2013; 5:12488-98. [PMID: 24180242 DOI: 10.1021/am403770q] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Phenylboronic-acid-modified nanoparticles (NPs) are attracting considerable attention for biological and biomedical applications. We describe here a convenient and general protocol for attaching multiple copies of para-substituted phenylboronic acid moieties onto either iron-oxide-, silica- or diamond-derived NPs. The boronic acid functionalized NPs are all fabricated by first modifying the surface of each particle type with 4-azidobenzoic ester functions. These azide-terminated nanostructures were then reacted with 4-[1-oxo-4-pentyn-1-yl) amino]phenylboronic acid units via a Cu(I) catalyzed Huisgen cycloaddition to furnish, conveniently, the corresponding boronic-acid modified NPs (or "borono-lectins") targeted in this work. The potential of these novel "borono-lectins" as antiviral inhibitors was investigated against the Hepatitis C virus (HCV) exploiting a bioassay that measures the potential of drugs to interfere with the ability of cell-culture-derived JFH1 virus particles to infect healthy hepatocytes. As far as we are aware, this is the first report that describes NP-derived viral entry inhibitors and thus serves as a "proof-of-concept" study. The novel viral entry activity demonstrated, and the fact that the described boronic-acid-functionalized NPs all display much reduced cellular toxicities compared with alternate NPs, sets the stage for their further investigation. The data supports that NP-derived borono-lectins should be pursued as a potential therapeutic strategy for blocking viral entry of HCV.
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Affiliation(s)
- Manakamana Khanal
- Institut de Recherche Interdisciplinaire (IRI, USR CNRS 3078), Université Lille 1 , Parc de la Haute Borne, 50 Avenue de Halley, BP 70478, 59658 Villeneuve d'Ascq, France
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261
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Däwlätşina GI, Minullina RT, Fakhrullin RF. Microworms swallow the nanobait: the use of nanocoated microbial cells for the direct delivery of nanoparticles into Caenorhabditis elegans. NANOSCALE 2013; 5:11761-11769. [PMID: 24121899 DOI: 10.1039/c3nr03905f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The application of in vivo models in assessing the toxicity of nanomaterials is currently regarded as a promising way to investigate the effects of nanomaterials on living organisms. In this paper we introduce a novel method to deliver nanomaterials into Caenorhabditis elegans nematodes. Our approach is based on using nanoparticle-coated microbial cells as "nanobait", which are ingested by nematodes as a sole food source. We found that nematodes feed on the nanocoated bacteria (Escherichia coli) and microalgae (Chlorella pyrenoidosa) ingesting them via pharyngeal pumping, which results in localization of nanoparticles inside the digestive tract of the worms. Nanoparticles were detected exclusively inside the intestine, indicating the efficient delivery based on microbial cells. Delivery of iron oxide nanoparticles results in magnetic labelling of living nematodes, rendering them magnetically-responsive. The use of cell-mediated delivery of nanoparticles can be applied to investigate the toxicity of polymer-coated magnetic nanoparticles and citrate-capped silver nanoparticles in Caenorhabditis elegans in vivo.
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Affiliation(s)
- Gölnur I Däwlätşina
- Biomaterials and nanomaterials group, Department of Microbiology, Kazan (Idel buye/Volga region) Federal University, Kreml uramı 18, Kazan, Republic of Tatarstan 420008, Russian Federation
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262
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Perevedentseva E, Lin YC, Jani M, Cheng CL. Biomedical applications of nanodiamonds in imaging and therapy. Nanomedicine (Lond) 2013; 8:2041-60. [DOI: 10.2217/nnm.13.183] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Nanodiamonds have attracted remarkable scientific attention for bioimaging and therapeutic applications owing to their low toxicity with many cell lines, convenient surface properties and stable fluorescence without photobleaching. Newer techniques are being applied to enhance fluorescence. Interest is also growing in exploring the possibilities for modifying the nanodiamond surface and functionalities by attaching various biomolecules of interest for interaction with the targets. The potential of Raman spectroscopy and fluorescence properties of nanodiamonds has been explored for bioimaging and drug delivery tracing. The interest in nanodiamonds’ biological/medical application appears to be continuing with enhanced focus. In this review an attempt is made to capture the scope, spirit and recent developments in the field of nanodiamonds for biomedical applications.
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Affiliation(s)
- Elena Perevedentseva
- Department of Physics, National Dong Hwa University, No. 1, Sec. 2 Da Hsueh Rd, Shoufeng, Hualien, 97401, Taiwan
| | - Yu-Chung Lin
- Department of Physics, National Dong Hwa University, No. 1, Sec. 2 Da Hsueh Rd, Shoufeng, Hualien, 97401, Taiwan
| | - Mona Jani
- Department of Physics, National Dong Hwa University, No. 1, Sec. 2 Da Hsueh Rd, Shoufeng, Hualien, 97401, Taiwan
| | - Chia-Liang Cheng
- Department of Physics, National Dong Hwa University, No. 1, Sec. 2 Da Hsueh Rd, Shoufeng, Hualien, 97401, Taiwan
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263
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Paget V, Sergent JA, Grall R, Altmeyer-Morel S, Girard HA, Petit T, Gesset C, Mermoux M, Bergonzo P, Arnault JC, Chevillard S. Carboxylated nanodiamonds are neither cytotoxic nor genotoxic on liver, kidney, intestine and lung human cell lines. Nanotoxicology 2013; 8 Suppl 1:46-56. [PMID: 24266793 DOI: 10.3109/17435390.2013.855828] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Although nanodiamonds (NDs) appear as one of the most promising nanocarbon materials available so far for biomedical applications, their risk for human health remains unknown. Our work was aimed at defining the cytotoxicity and genotoxicity of two sets of commercial carboxylated NDs with diameters below 20 and 100 nm, on six human cell lines chosen as representative of potential target organs: HepG2 and Hep3B (liver), Caki-1 and Hek-293 (kidney), HT29 (intestine) and A549 (lung). Cytotoxicity of NDs was assessed by measuring cell impedance (xCELLigence® system) and cell survival/death by flow cytometry while genotoxicity was assessed by γ-H2Ax foci detection, which is considered the most sensitive technique for studying DNA double-strand breaks. To validate and check the sensitivity of the techniques, aminated polystyrene nanobeads were used as positive control in all assays. Cell incorporation of NDs was also studied by flow cytometry and luminescent N-V center photoluminescence (confirmed by Raman microscopy), to ensure that nanoparticles entered the cells. Overall, we show that NDs effectively entered the cells but NDs do not induce any significant cytotoxic or genotoxic effects on the six cell lines up to an exposure dose of 250 µg/mL. Taken together these results strongly support the huge potential of NDs for human nanomedicine but also their potential as negative control in nanotoxicology studies.
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Affiliation(s)
- V Paget
- CEA, Institute of Cellular and Molecular Radiobiology, Laboratory of Experimental Cancerology, CEA , Fontenay-aux-Roses , France
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264
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Fluorescent nanodiamond as a probe for the intercellular transport of proteins in vivo. Biomaterials 2013; 34:8352-60. [DOI: 10.1016/j.biomaterials.2013.07.043] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 07/11/2013] [Indexed: 02/07/2023]
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265
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Lee JW, Lee S, Jang S, Han KY, Kim Y, Hyun J, Kim SK, Lee Y. Preparation of non-aggregated fluorescent nanodiamonds (FNDs) by non-covalent coating with a block copolymer and proteins for enhancement of intracellular uptake. MOLECULAR BIOSYSTEMS 2013; 9:1004-11. [PMID: 23364398 DOI: 10.1039/c2mb25431j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Fluorescent nanodiamonds (FNDs) are very promising fluorophores for use in biosystems due to their high biocompatibility and photostability. To overcome their tendency to aggregate in physiological solutions, which severely limits the biological applications of FNDs, we developed a new non-covalent coating method using a block copolymer, PEG-b-P(DMAEMA-co-BMA), or proteins such as BSA and HSA. By simple mixing of the block copolymer with FNDs, the cationic DMAEMA and hydrophobic BMA moieties can strongly interact with the anionic and hydrophobic moieties on the FND surface, while the PEG block can form a shell to prevent the direct contact between FNDs. The polymer-coated FNDs, along with BSA- and HSA-coated FNDs, showed non-aggregation characteristics and maintained their size at the physiological salt concentration. The well-dispersed, polymer- or protein-coated FNDs in physiological solutions showed enhanced intracellular uptake, which was confirmed by CLSM. In addition, the biocompatibility of the coated FNDs was expressly supported by a cytotoxicity assay. Our simple non-covalent coating with the block copolymer, which can be easily modified by various chemical methods, projects a very promising outlook for future biomedical applications, especially in comparison with covalent coating or protein-based coating.
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Affiliation(s)
- Jong Woo Lee
- WCU Department of Biophysics and Chemical Biology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-747, Republic of Korea
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266
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Merson TD, Castelletto S, Aharonovich I, Turbic A, Kilpatrick TJ, Turnley AM. Nanodiamonds with silicon vacancy defects for nontoxic photostable fluorescent labeling of neural precursor cells. OPTICS LETTERS 2013; 38:4170-3. [PMID: 24321951 DOI: 10.1364/ol.38.004170] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Nanodiamonds (NDs) containing silicon vacancy (SiV) defects were evaluated as a potential biomarker for the labeling and fluorescent imaging of neural precursor cells (NPCs). SiV-containing NDs were synthesized using chemical vapor deposition and silicon ion implantation. Spectrally, SiV-containing NDs exhibited extremely stable fluorescence and narrow bandwidth emission with an excellent signal to noise ratio exceeding that of NDs containing nitrogen-vacancy centers. NPCs labeled with NDs exhibited normal cell viability and proliferative properties consistent with biocompatibility. We conclude that SiV-containing NDs are a promising biomedical research tool for cellular labeling and optical imaging in stem cell research.
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267
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Ma P, Xiao H, Li X, Li C, Dai Y, Cheng Z, Jing X, Lin J. Rational design of multifunctional upconversion nanocrystals/polymer nanocomposites for cisplatin (IV) delivery and biomedical imaging. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4898-4905. [PMID: 23857588 DOI: 10.1002/adma.201301713] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 06/01/2013] [Indexed: 06/02/2023]
Abstract
By combining upconversion nanoparticles with the cisplatin (IV) prodrug we have demonstrated that a stable and multifunctional drug delivery system can be designed that will both reduce the drawbacks of cisplatin and give insight in to its in vitro/in vivo imaging. The up/down-conversion fluorescence are detectable and show obvious co-localization, demonstrating that the nanoparticles are rather stable inside cells and retain the UCNPs and block copolymer.
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Affiliation(s)
- Ping'an Ma
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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268
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Hui YY, Chang HC. Recent Developments and Applications of Nanodiamonds as Versatile Bioimaging Agents. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300346] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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269
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Wu TJ, Tzeng YK, Chang WW, Cheng CA, Kuo Y, Chien CH, Chang HC, Yu J. Tracking the engraftment and regenerative capabilities of transplanted lung stem cells using fluorescent nanodiamonds. NATURE NANOTECHNOLOGY 2013; 8:682-9. [PMID: 23912062 PMCID: PMC7097076 DOI: 10.1038/nnano.2013.147] [Citation(s) in RCA: 173] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 06/26/2013] [Indexed: 05/04/2023]
Abstract
Lung stem/progenitor cells are potentially useful for regenerative therapy, for example in repairing damaged or lost lung tissue in patients. Several optical imaging methods and probes have been used to track how stem cells incorporate and regenerate themselves in vivo over time. However, these approaches are limited by photobleaching, toxicity and interference from background tissue autofluorescence. Here we show that fluorescent nanodiamonds, in combination with fluorescence-activated cell sorting, fluorescence lifetime imaging microscopy and immunostaining, can identify transplanted CD45(-)CD54(+)CD157(+) lung stem/progenitor cells in vivo, and track their engraftment and regenerative capabilities with single-cell resolution. Fluorescent nanodiamond labelling did not eliminate the cells' properties of self-renewal and differentiation into type I and type II pneumocytes. Time-gated fluorescence imaging of tissue sections of naphthalene-injured mice indicates that the fluorescent nanodiamond-labelled lung stem/progenitor cells preferentially reside at terminal bronchioles of the lungs for 7 days after intravenous transplantation.
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Affiliation(s)
- Tsai-Jung Wu
- Institute of Biochemistry and Molecular Biology, Program in Molecular Medicine, School of Life Sciences, National Yang-Ming University, Taipei, 112 Taiwan
- Genomics Research Center, Academia Sinica, Taipei, 115 Taiwan
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, 115 Taiwan
| | - Yan-Kai Tzeng
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 106 Taiwan
- Department of Chemistry, National Taiwan University, Taipei, 106 Taiwan
| | - Wei-Wei Chang
- Genomics Research Center, Academia Sinica, Taipei, 115 Taiwan
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, 115 Taiwan
| | - Chi-An Cheng
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 106 Taiwan
| | - Yung Kuo
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 106 Taiwan
- Department of Chemistry, National Taiwan University, Taipei, 106 Taiwan
| | - Chin-Hsiang Chien
- Institute of Biochemistry and Molecular Biology, Program in Molecular Medicine, School of Life Sciences, National Yang-Ming University, Taipei, 112 Taiwan
| | - Huan-Cheng Chang
- Genomics Research Center, Academia Sinica, Taipei, 115 Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 106 Taiwan
- Department of Chemistry, National Taiwan University, Taipei, 106 Taiwan
| | - John Yu
- Institute of Biochemistry and Molecular Biology, Program in Molecular Medicine, School of Life Sciences, National Yang-Ming University, Taipei, 112 Taiwan
- Genomics Research Center, Academia Sinica, Taipei, 115 Taiwan
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, 115 Taiwan
- Center of Stem Cells and Translational Cancer Research, Chang Gung Memorial Hospital, Linkou, Taoyuan County, 333 Taiwan
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270
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Su LJ, Fang CY, Chang YT, Chen KM, Yu YC, Hsu JH, Chang HC. Creation of high density ensembles of nitrogen-vacancy centers in nitrogen-rich type Ib nanodiamonds. NANOTECHNOLOGY 2013; 24:315702. [PMID: 23857995 DOI: 10.1088/0957-4484/24/31/315702] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This work explores the possibility of increasing the density of negatively charged nitrogen-vacancy centers ([NV(-)]) in nanodiamonds using nitrogen-rich type Ib diamond powders as the starting material. The nanodiamonds (10-100 nm in diameter) were prepared by ball milling of microdiamonds, in which the density of neutral and atomically dispersed nitrogen atoms ([N(0)]) was measured by diffuse reflectance infrared Fourier transform spectroscopy. A systematic measurement of the fluorescence intensities and lifetimes of the crushed monocrystalline diamonds as a function of [N(0)] indicated that [NV(-)] increases nearly linearly with [N(0)] at 100-200 ppm. The trend, however, failed to continue for nanodiamonds with higher [N(0)] (up to 390 ppm) but poorer crystallinity. We attribute the result to a combined effect of fluorescence quenching as well as the lower conversion efficiency of vacancies to NV(-) due to the presence of more impurities and defects in these as-grown diamond crystallites. The principles and practice of fabricating brighter and smaller fluorescent nanodiamonds are discussed.
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Affiliation(s)
- Long-Jyun Su
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan
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271
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Man HB, Kim H, Kim HJ, Robinson E, Liu WK, Chow EKH, Ho D. Synthesis of nanodiamond-daunorubicin conjugates to overcome multidrug chemoresistance in leukemia. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2013; 10:359-69. [PMID: 23916889 DOI: 10.1016/j.nano.2013.07.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 06/08/2013] [Accepted: 07/22/2013] [Indexed: 01/29/2023]
Abstract
UNLABELLED Nanodiamonds (NDs) are promising candidates in nanomedicine, demonstrating significant potential as gene/drug delivery platforms for cancer therapy. We have synthesized ND vectors capable of chemotherapeutic loading and delivery with applications towards chemoresistant leukemia. The loading of Daunorubicin (DNR) onto NDs was optimized by adjusting reaction parameters such as acidity and concentration. The resulting conjugate, a novel therapeutic payload for NDs, was characterized extensively for size, surface charge, and loading efficiency. A K562 human myelogenous leukemia cell line, with multidrug resistance conferred by incremental DNR exposure, was used to demonstrate the efficacy enhancement resulting from ND-based delivery. While resistant K562 cells were able to overcome treatment from DNR alone, as compared with non-resistant K562 cells, NDs were able to improve DNR delivery into resistant K562 cells. By overcoming efflux mechanisms present in this resistant leukemia line, ND-enabled therapeutics have demonstrated the potential to improve cancer treatment efficacy, especially towards resistant strains. FROM THE CLINICAL EDITOR The authors of this study demonstrate superior treatment properties of resistant leukemia cell lines by utilizing nanodiamond vectors loaded with daunorubicin, paving the way to clinical studies in the hopefully not too distant future.
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Affiliation(s)
- Han B Man
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL, USA
| | - Hansung Kim
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL, USA
| | - Ho-Joong Kim
- Division of Oral Biology and Medicine, Division of Advanced Prosthodontics, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, California NanoSystems Institute, and Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA, USA
| | - Erik Robinson
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL, USA
| | - Wing Kam Liu
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL, USA
| | - Edward Kai-Hua Chow
- Cancer Science Institute of Singapore, National University of Singapore, Singapore; Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Dean Ho
- Division of Oral Biology and Medicine, Division of Advanced Prosthodontics, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, California NanoSystems Institute, and Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA, USA.
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272
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Peptide-coated nanoparticles: Adsorption and desorption studies of cationic peptides on nanodiamonds. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.04.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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273
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Moore LK, Chow EK, Osawa E, Bishop JM, Ho D. Diamond-lipid hybrids enhance chemotherapeutic tolerance and mediate tumor regression. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:3532-41. [PMID: 23584895 PMCID: PMC3872062 DOI: 10.1002/adma.201300343] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 02/08/2013] [Indexed: 05/05/2023]
Abstract
Self-assembled nanodiamond-lipid hybrid particles (NDLPs) harness the potent interaction between the nanodiamond (ND)-surface and small molecules, while providing a mechanism for cell-targeted imaging and therapy of triple negative breast cancers. Epidermal growth factor receptor-targeted NDLPs are highly biocompatible particles that provide cell-specific imaging, promote tumor retention of ND-complexes, prevent epirubicin toxicities and mediate regression of triple negative breast cancers.
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Affiliation(s)
- Laura K. Moore
- Department of Biomedical Engineering Northwestern University Evanston, Illinois, 60208, USA
| | - Edward K. Chow
- George Williams Hooper Foundation University of California San Francisco San Francisco, California, 94143, USA
| | - Eiji Osawa
- NanoCarbon Research Institute Shinshu University Ueda, Nagano, Japan
| | - J. Michael Bishop
- Department of Microbiology and Immunology George Williams Hooper Foundation University of California San Francisco San Francisco, California, 94143, USA
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274
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Ermakova A, Pramanik G, Cai JM, Algara-Siller G, Kaiser U, Weil T, Tzeng YK, Chang HC, McGuinness LP, Plenio MB, Naydenov B, Jelezko F. Detection of a few metallo-protein molecules using color centers in nanodiamonds. NANO LETTERS 2013; 13:3305-9. [PMID: 23738579 DOI: 10.1021/nl4015233] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Nanometer-sized diamonds containing nitrogen-vacancy defect centers (NV) are promising nanosensors in biological environments due to their biocompatibility, bright fluorescence, and high magnetic sensitivity at ambient conditions. Here we report on the detection of ferritin molecules using magnetic noise induced by the inner paramagnetic iron as a contrast mechanism. We observe a significant reduction of both coherence and relaxation time due to the presence of ferritin on the surface of nanodiamonds. Our theoretical model is in excellent agreement with the experimental data and establishes this method as a novel sensing technology for proteins.
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Affiliation(s)
- A Ermakova
- Institut für Quantenoptik and IQST, ‡Institut für Organische Chemie III and IQST, §Institut für Theoretische Physik and IQST, and ∥Materialwissenschaftliche Elektronenmikroskopie and IQST, Albert-Einstein Allee 11, Universität Ulm , 89069 Ulm, Germany
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275
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Kim SW, Kwak JI, An YJ. Multigenerational study of gold nanoparticles in Caenorhabditis elegans: transgenerational effect of maternal exposure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5393-9. [PMID: 23590387 DOI: 10.1021/es304511z] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In this study, the generational transfer and multigenerational effect of gold nanoparticles (AuNPs) on Caenorhabditis elegans were investigated by observing the parental generation (F0) to the fourth offspring generation (F4) using food-exposure approaches. There were no significant changes on survival rate under all generations by AuNP maternal exposure to the F0 generation. However, reproduction rate was clearly affected in the F2 generation but then gradually recovered in the F3 and F4 generations. The abnormalities of the reproductive system showed a close relationship with reproduction rates. These phenomenons may be due to the germ-line transfer. The germ line of F0 generation such as gonad and embryo germ cell may be affected during their development by maternal exposure of AuNPs, and this generation caused transgeneration effect on future generations. To the best of our knowledge, this is the first study to provide the evidence of transgenerational effects by maternal exposure of nanoparticles to the next generations.
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Affiliation(s)
- Shin Woong Kim
- Department of Environmental Science, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
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276
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Chen PH, Hsiao KM, Chou CC. Molecular characterization of toxicity mechanism of single-walled carbon nanotubes. Biomaterials 2013; 34:5661-9. [PMID: 23623425 DOI: 10.1016/j.biomaterials.2013.03.093] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 03/29/2013] [Indexed: 11/30/2022]
Abstract
Carbon nanotubes (CNTs) are one of widely used nanomaterials in industry and biomedicine. The potential impact of single-walled carbon nanotubes (SWCNTs) was evaluated using Caenorhabditis elegans (C. elegans) as a toxicological animal model. SWCNTs are extremely hydrophobic to form large agglomerates in aqueous solutions. Highly soluble amide-modified SWCNTs (a-SWCNTs) were therefore used in the present study so that the exact impact of SWCNTs could be studied. No significant toxicity was observed in C. elegans due to the amide modification. a-SWCNTs were efficiently taken up by worms and caused acute toxicity, including retarded growth, shortened lifespan and defective embryogenesis. The resulting toxicity was reversible since C. elegans could recover from a-SWCNT-induced toxicity once the exposure terminates. Chronic exposure to low doses of a-SWCNTs during all development stages could also cause a toxic accumulation in C. elegans. Genome-wide gene expression analysis was performed to investigate the toxic molecular mechanisms. Functional genomic analysis and molecular biology validation suggest that defective endocytosis, the decreased activity of the citrate cycle and the reduced nuclear translocation of DAF-16 transcription factor play key roles in inducing the observed a-SWCNT toxicity in worms. The present study presents an integrated approach to evaluating the toxicity of nanomaterials at the organism and molecular level for human and environmental health and demonstrates that traditional toxicological endpoints associated with functional genomic analysis can provide global and thorough insight into toxicity.
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Affiliation(s)
- Po-Hsuan Chen
- Department of Life Science and Institute of Molecular Biology, National Chung Cheng University, Min-Hsiung, Chia-Yi 62102, Taiwan.
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277
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Yu Z, Zhang J, Chen X, Yin D, Deng H. Inhibitions on the behavior and growth of the nematode progeny after prenatal exposure to sulfonamides at micromolar concentrations. JOURNAL OF HAZARDOUS MATERIALS 2013; 250-251:198-203. [PMID: 23454458 DOI: 10.1016/j.jhazmat.2013.01.078] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/27/2013] [Accepted: 01/31/2013] [Indexed: 06/01/2023]
Abstract
Sulfonamides are one typical antibiotic which is an emerging hazardous material to the ecological stability due to their continuously application and biological effects to non-target organisms. The parent-progeny transgenerational effects need investigations to indicate their long-term consequences. Currently, we tested the transgenerational effects of sulfadiazine (SD), sulfapyridine (SP) and sulfamethazine (SMZ) on L3 larva of Caenorhabditis elegans. The nematodes were exposed to aqueous sulfonamides at micromolar concentrations for 96 h, and then the effects on the behavior and growth in the exposed parent and unexposed progeny were measured. Results showed that SD, SP and SMZ inhibited three behavior indicators including body bending frequency (BBF), reversal movement (RM) and Omega turn (OT), and the growth indicator (body length, BL). Behavior indicators showed higher sensitivities than the growth indicator, and BBF had the highest sensitivity among the behavior indicators. Moreover, the effects of sulfonamides were also observed in the unexposed progeny with partially rescued or more severe inhibitions on the indicators. The behavior also showed higher sensitivity than the growth in the progeny. The transgenerational effects of sulfonamides indicated that parental exposure can multiply the harmful effects of antibiotic pollution in following generations and their potential ecological risks at environmental concentrations were further raised.
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Affiliation(s)
- ZhenYang Yu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
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278
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Sapsford KE, Algar WR, Berti L, Gemmill KB, Casey BJ, Oh E, Stewart MH, Medintz IL. Functionalizing nanoparticles with biological molecules: developing chemistries that facilitate nanotechnology. Chem Rev 2013; 113:1904-2074. [PMID: 23432378 DOI: 10.1021/cr300143v] [Citation(s) in RCA: 818] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kim E Sapsford
- Division of Biology, Department of Chemistry and Materials Science, Office of Science and Engineering Laboratories, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
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279
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Zhang X, Wang S, Zhu C, Liu M, Ji Y, Feng L, Tao L, Wei Y. Carbon-dots derived from nanodiamond: photoluminescence tunable nanoparticles for cell imaging. J Colloid Interface Sci 2013; 397:39-44. [PMID: 23484769 DOI: 10.1016/j.jcis.2013.01.063] [Citation(s) in RCA: 163] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/29/2013] [Accepted: 01/30/2013] [Indexed: 11/30/2022]
Abstract
Water dispersible carbon-dots (CDs) with tunable photoluminescence were synthesized via one-pot hydrothermal oxidation of nanodiamond and subsequently utilized for cell imaging applications. The CDs were characterized by the following techniques including transmission electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, UV-Visible spectroscopy, and fluorescent spectroscopy. Results showed that the size of CDs is mainly distributed at 3-7 nm. Many functional groups were introduced on the surface of CDs during hydrothermal oxidation procedure. Cell morphology observation and cell viability measurement demonstrated the good biocompatibility of CDs, suggesting their potential bioimaging applications.
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Affiliation(s)
- Xiaoyong Zhang
- Department of Chemistry and the Tsinghua Center for Frontier Polymer Research, Tsinghua University, Beijing 100084, PR China
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280
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281
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Zhang T, Cui H, Fang CY, Su LJ, Ren S, Chang HC, Yang X, Forrest ML. Photoacoustic contrast imaging of biological tissues with nanodiamonds fabricated for high near-infrared absorbance. JOURNAL OF BIOMEDICAL OPTICS 2013; 18:26018. [PMID: 23400417 PMCID: PMC3569583 DOI: 10.1117/1.jbo.18.2.026018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Radiation-damaged nanodiamonds (DNDs) are potentially ideal optical contrast agents for photoacoustic (PA) imaging in biological tissues due to their low toxicity and high optical absorbance. PA imaging contrast agents have been limited to quantum dots and gold particles, since most existing carbon-based nanoparticles, including fluorescent nanodiamonds, do not have sufficient optical absorption in the near-infrared (NIR) range. A new DND by He+ ion beam irradiation with very high NIR absorption was synthesized. These DNDs produced a 71-fold higher PA signal on a molar basis than similarly dimensioned gold nanorods, and 7.1 fmol of DNDs injected into rodents could be clearly imaged 3 mm below the skin surface with PA signal enhancement of 567% using an 820-nm laser wavelength.
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Affiliation(s)
- Ti Zhang
- University of Kansas, Department of Pharmaceutical Chemistry, 2095 Constant Avenue, Lawrence, Kansas 66047
| | - Huizhong Cui
- University of Kansas, Bioengineering Research Center and Department of Mechanical Engineering, 1530 West 15th Street, Lawrence, Kansas 66045
| | - Chia-Yi Fang
- Institute of Atomic and Molecular Sciences, Academia Sinica, No. 1, Roosevelt Road, Section 4, Taipei, 10617, Taiwan
| | - Long-Jyun Su
- Institute of Atomic and Molecular Sciences, Academia Sinica, No. 1, Roosevelt Road, Section 4, Taipei, 10617, Taiwan
| | - Shenqiang Ren
- University of Kansas, Department of Chemistry, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045
| | - Huan-Cheng Chang
- Institute of Atomic and Molecular Sciences, Academia Sinica, No. 1, Roosevelt Road, Section 4, Taipei, 10617, Taiwan
| | - Xinmai Yang
- University of Kansas, Bioengineering Research Center and Department of Mechanical Engineering, 1530 West 15th Street, Lawrence, Kansas 66045
| | - M. Laird Forrest
- University of Kansas, Department of Pharmaceutical Chemistry, 2095 Constant Avenue, Lawrence, Kansas 66047
- Address all correspondence to: M. Laird Forrest, University of Kansas, Department of Pharmaceutical Chemistry, 2095 Constant Avenue, Lawrence, Kansas, 66047. Tel: +1 (785) 864-4388; Fax: +1 (785) 864-5736; E-mail:
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282
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Yu Z, Chen X, Zhang J, Wang R, Yin D. Transgenerational effects of heavy metals on L3 larva of Caenorhabditis elegans with greater behavior and growth inhibitions in the progeny. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2013; 88:178-84. [PMID: 23218720 DOI: 10.1016/j.ecoenv.2012.11.012] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 11/09/2012] [Accepted: 11/10/2012] [Indexed: 05/06/2023]
Abstract
Heavy metals are ubiquitous environmental pollutants, and their toxic effects have been widely studied. However, their transgenerational effects between parent and progeny at environmental relevant concentrations need further investigations. Currently, L3 stage of Caenorhabditis elegans was exposed to aqueous metals (Cd, Cu, Pb and Zn) at environmentally realistic concentrations for 96 h. The whole exposure time covered the formation of sperm, ovum and eggs. Subsequently the behavior and growth indicators were measured. The parent nematodes were then bleached to gain synchronized eggs, which were cultured under non-toxic conditions to L3 stage when the same indicators were measured in the progeny. The parent suffered concentration-dependent inhibitions on behavior and growth. Based on the median effective concentration (EC(50)) values, body bending frequency showed relatively higher sensitivity than other behavior indicators. The inhibitions on growth and behavior of progeny were more severe than those of the parent, based on their respective EC(50) values. Interestingly, Cd was not the most toxic metal in either parent or progeny according to EC(50) values, but its EC(50) ratios between parent and progeny (EC(50, parent)/EC(50, progeny)) were the most significant, indicating its greatest transgenerational effects. The results demonstrated the higher sensitivity of L3 larva stage of C. elegans in the transgenerational effect studies than other life stages used before. Our findings suggested that parental exposure to heavy metals can multiply their harmful effects in following generations.
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Affiliation(s)
- ZhenYang Yu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
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283
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Kaur R, Badea I. Nanodiamonds as novel nanomaterials for biomedical applications: drug delivery and imaging systems. Int J Nanomedicine 2013; 8:203-20. [PMID: 23326195 PMCID: PMC3544342 DOI: 10.2147/ijn.s37348] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Detonation nanodiamonds (NDs) are emerging as delivery vehicles for small chemical drugs and macromolecular biotechnology products due to their primary particle size of 4 to 5 nm, stable inert core, reactive surface, and ability to form hydrogels. Nanoprobe technology capitalizes on the intrinsic fluorescence, high refractive index, and unique Raman signal of the NDs, rendering them attractive for in vitro and in vivo imaging applications. This review provides a brief introduction of the various types of NDs and describes the development of procedures that have led to stable single-digit-sized ND dispersions, a crucial feature for drug delivery systems and nanoprobes. Various approaches used for functionalizing the surface of NDs are highlighted, along with a discussion of their biocompatibility status. The utilization of NDs to provide sustained release and improve the dispersion of hydrophobic molecules, of which chemotherapeutic drugs are the most investigated, is described. The prospects of improving the intracellular delivery of nucleic acids by using NDs as a platform are exemplified. The photoluminescent and optical scattering properties of NDs, together with their applications in cellular labeling, are also reviewed. Considering the progress that has been made in understanding the properties of NDs, they can be envisioned as highly efficient drug delivery and imaging biomaterials for use in animals and humans.
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Affiliation(s)
- Randeep Kaur
- Drug Design and Discovery Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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284
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Zhang X, Wang S, Liu M, Yang B, Feng L, Ji Y, Tao L, Wei Y. Size tunable fluorescent nano-graphite oxides: preparation and cell imaging applications. Phys Chem Chem Phys 2013; 15:19013-8. [DOI: 10.1039/c3cp52883a] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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285
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NANODIAMONDS FOR FLUORESCENT CELL AND SENSOR NANOTECHNOLOGIES. BIOTECHNOLOGIA ACTA 2013. [DOI: 10.15407/biotech6.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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286
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Zhang X, Wang S, Liu M, Hui J, Yang B, Tao L, Wei Y. Surfactant-dispersed nanodiamond: biocompatibility evaluation and drug delivery applications. Toxicol Res (Camb) 2013. [DOI: 10.1039/c3tx50021g] [Citation(s) in RCA: 170] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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287
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Mao X, Li H. Chiral imaging in living cells with functionalized graphene oxide. J Mater Chem B 2013; 1:4267-4272. [DOI: 10.1039/c3tb20729c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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288
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Zhao Y, Wu Q, Li Y, Wang D. Translocation, transfer, and in vivo safety evaluation of engineered nanomaterials in the non-mammalian alternative toxicity assay model of nematode Caenorhabditis elegans. RSC Adv 2013. [DOI: 10.1039/c2ra22798c] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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289
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Raju GSR, Pavitra E, Yu JS. Facile template free synthesis of Gd2O(CO3)2·H2O chrysanthemum-like nanoflowers and luminescence properties of corresponding Gd2O3:RE3+ spheres. Dalton Trans 2013; 42:11400-10. [DOI: 10.1039/c3dt51154e] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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290
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del Pino P, Mitchell SG, Pelaz B. Design and characterization of functional nanoparticles for enhanced bio-performance. Methods Mol Biol 2013; 1051:165-207. [PMID: 23934805 DOI: 10.1007/978-1-62703-550-7_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recent years have witnessed the rapid development of inorganic nanomaterials for medical applications. At present, nanomedicines-nanoparticles (NPs) destined for therapy or diagnosis purposes-can be found in a number of medical applications including therapeutics (either self-therapeutics or drug carriers) and diagnosis agents (e.g., contrast agents for imaging or transducers in biosensors). Pushing the limits of nanotechnology towards enhanced nanomedicines will surely help to reduce side effects of traditional treatments and to achieve earlier diagnosis. As for all medical approaches, the ultimate aim of nanomedicine is improving the well-being of patients. However, mixing nanomaterials with biological components such as fluids, living cells, and tissues does not always result as expected. The interplay between engineered nanomaterials and biological components is influenced by complex interactions which make predicting their biological fate and performance a nontrivial issue. Indeed, the structural integrity and the a priori function of nanomaterials can change dramatically due to unwanted nano-bio interactions. For medical applications in particular, any new nanomaterial has to be exhaustively studied when it comes in close contact with biological fluids and living cells or organisms. The motivation is clear: first, many unwanted effects can be turned on unexpectedly (e.g., leakage of toxic ions, ROS production, and sequestration by the phagocytic system) and second, their purpose as therapeutic or diagnostic agent can be lost as they are transferred to the desired working environment. This chapter aims to highlight key factors that should be taken into account when choosing and characterizing such functional materials for a given application, with a view to minimizing unwanted nano-bio interactions, rather than providing an exhaustive compilation of recent work. We hope that both early-stage and experienced researchers will find it valuable for designing nanoparticles for enhanced bio-performance.
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Affiliation(s)
- Pablo del Pino
- Nanotherapy and Nanodiagnostics Group (GN2), Campus Rio Ebro, Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Zaragoza, Spain
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291
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Sonkar SK, Roy M, Babar DG, Sarkar S. Water soluble carbon nano-onions from wood wool as growth promoters for gram plants. NANOSCALE 2012; 4:7670-7675. [PMID: 23099536 DOI: 10.1039/c2nr32408c] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Water-soluble carbon nano-onions (wsCNOs) isolated from wood wool-a wood-based pyrolysis waste product of wood, can enhance the overall growth rate of gram (Cicer arietinum) plants. Treatment of plants with upto 30 μg mL(-1) of wsCNOs for an initial 10 day period in laboratory conditions led to an increase in the overall growth of the plant biomass. In order to examine the growth stimulating effects of wsCNOs under natural conditions, 10 day-old plants treated with and without wsCNOs were transplanted into soil of standard carbon and nitrogen composition. We observed an enhanced growth rate of the wsCNOs pre-treated plants in soil, which finally led to an increased productivity of plants in terms of a larger number of grams. On analyzing the carbon, hydrogen, and nitrogen (CHN) content for the shoot and fruit sections of the plants treated with and without wsCNOs, only a minor difference in the composition was noticed. However, a slight increase in the percentage of carbon and hydrogen in shoots reflects the synthesis of more organic biomass in the case of treated plants. This work shows that wsCNOs are non-toxic to plant cells and can act as efficient growth stimulants which can be used as benign growth promoters.
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Affiliation(s)
- Sumit Kumar Sonkar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
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292
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Alhaddad A, Durieu C, Dantelle G, Le Cam E, Malvy C, Treussart F, Bertrand JR. Influence of the internalization pathway on the efficacy of siRNA delivery by cationic fluorescent nanodiamonds in the Ewing sarcoma cell model. PLoS One 2012; 7:e52207. [PMID: 23284935 PMCID: PMC3527409 DOI: 10.1371/journal.pone.0052207] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 11/09/2012] [Indexed: 11/18/2022] Open
Abstract
Small interfering RNAs (siRNAs) are powerful tools commonly used for the specific inhibition of gene expression. However, vectorization is required to facilitate cell penetration and to prevent siRNA degradation by nucleases. We have shown that diamond nanocrystals coated with cationic polymer can be used to carry siRNAs into Ewing sarcoma cells, in which they remain traceable over long periods, due to their intrinsic stable fluorescence. We tested two cationic polymers, polyallylamine and polyethylenimine. The release of siRNA, accompanied by Ewing sarcoma EWS-Fli1 oncogene silencing, was observed only with polyethylenimine. We investigated cell penetration and found that the underlying mechanisms accounted for these differences in behavior. Using drugs selectively inhibiting particular pathways and a combination of fluorescence and electronic microscopy, we showed that siRNA gene silencing occurred only if the siRNA:cationic nanodiamond complex followed the macropinocytosis route. These results have potential implications for the design of efficient drug-delivery vectors.
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Affiliation(s)
- Anna Alhaddad
- Vectorologie et thérapeutiques anti-cancéreuses, CNRS UMR 8203, Université Paris Sud 11, Institut Gustave Roussy, Villejuif, France
| | - Catherine Durieu
- Signalisations, Noyaux et Innovations en Cancérologie, CNRS UMR 8126, Université Paris Sud 11, Institut Gustave Roussy, Villejuif, France
| | - Géraldine Dantelle
- Laboratoire de Physique de la Matière Condensée, CNRS UMR 7643, Ecole Polytechnique, Palaiseau, France
| | - Eric Le Cam
- Signalisations, Noyaux et Innovations en Cancérologie, CNRS UMR 8126, Université Paris Sud 11, Institut Gustave Roussy, Villejuif, France
| | - Claude Malvy
- Vectorologie et thérapeutiques anti-cancéreuses, CNRS UMR 8203, Université Paris Sud 11, Institut Gustave Roussy, Villejuif, France
| | - François Treussart
- Laboratoire de Photonique Quantique et Moléculaire, CNRS UMR 8537, Ecole Normale Supérieure de Cachan, Cachan, France
- * E-mail: (FT); (JRB)
| | - Jean-Rémi Bertrand
- Vectorologie et thérapeutiques anti-cancéreuses, CNRS UMR 8203, Université Paris Sud 11, Institut Gustave Roussy, Villejuif, France
- * E-mail: (FT); (JRB)
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293
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Kim H, Man HB, Saha B, Kopacz AM, Lee OS, Schatz GC, Ho D, Liu WK. Multiscale Simulation as a Framework for the Enhanced Design of Nanodiamond-Polyethylenimine-based Gene Delivery. J Phys Chem Lett 2012; 3:3791-3797. [PMID: 23304428 PMCID: PMC3538166 DOI: 10.1021/jz301756e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Nanodiamonds (NDs) are emerging carbon platforms with promise as gene/drug delivery vectors for cancer therapy. Specifically, NDs functionalized with the polymer polyethylenimine (PEI) can transfect small interfering RNAs (siRNA) in vitro with high efficiency and low cytotoxicity. Here we present a modeling framework to accurately guide the design of ND-PEI gene platforms and elucidate binding mechanisms between ND, PEI, and siRNA. This is among the first ND simulations to comprehensively account for ND size, charge distribution, surface functionalization, and graphitization. The simulation results are compared with our experimental results both for PEI loading onto NDs and for siRNA (C-myc) loading onto ND-PEI for various mixing ratios. Remarkably, the model is able to predict loading trends and saturation limits for PEI and siRNA, while confirming the essential role of ND surface functionalization in mediating ND-PEI interactions. These results demonstrate that this robust framework can be a powerful tool in ND platform development, with the capacity to realistically treat other nanoparticle systems.
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Affiliation(s)
- Hansung Kim
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208 USA
- Address correspondence to: , ,
| | - Han Bin Man
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208 USA
| | - Biswajit Saha
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208 USA
| | - Adrian M. Kopacz
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208 USA
| | - One-Sun Lee
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208 USA
| | - George C. Schatz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208 USA
- Address correspondence to: , ,
| | - Dean Ho
- Division of Oral Biology and Medicine, Division of Advanced Prosthodontics, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, California NanoSystems Institute, and Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California 90095, USA
- Address correspondence to: , ,
| | - Wing Kam Liu
- Department of Mechanical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208 USA
- Distinguished World Class University Professor, School of Mechanical Engineering, Sungkyunkwan University, Suwon, Kyonggi-do, Republic of Korea
- Address correspondence to: , ,
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294
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Igarashi R, Yoshinari Y, Yokota H, Sugi T, Sugihara F, Ikeda K, Sumiya H, Tsuji S, Mori I, Tochio H, Harada Y, Shirakawa M. Real-time background-free selective imaging of fluorescent nanodiamonds in vivo. NANO LETTERS 2012; 12:5726-5732. [PMID: 23066639 DOI: 10.1021/nl302979d] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Recent developments of imaging techniques have enabled fluorescence microscopy to investigate the localization and dynamics of intracellular substances of interest even at the single-molecule level. However, such sensitive detection is often hampered by autofluorescence arising from endogenous molecules. Those unwanted signals are generally reduced by utilizing differences in either wavelength or fluorescence lifetime; nevertheless, extraction of the signal of interest is often insufficient, particularly for in vivo imaging. Here, we describe a potential method for the selective imaging of nitrogen-vacancy centers (NVCs) in nanodiamonds. This method is based on the property of NVCs that the fluorescence intensity sensitively depends on the ground state spin configuration which can be regulated by electron spin magnetic resonance. Because the NVC fluorescence exhibits neither photobleaching nor photoblinking, this protocol allowed us to conduct long-term tracking of a single nanodiamond in both Caenorhabditis elegans and mice, with excellent imaging contrast even in the presence of strong background autofluorescence.
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Affiliation(s)
- Ryuji Igarashi
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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295
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Vaijayanthimala V, Cheng PY, Yeh SH, Liu KK, Hsiao CH, Chao JI, Chang HC. The long-term stability and biocompatibility of fluorescent nanodiamond as an in vivo contrast agent. Biomaterials 2012; 33:7794-802. [DOI: 10.1016/j.biomaterials.2012.06.084] [Citation(s) in RCA: 195] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Accepted: 06/28/2012] [Indexed: 11/16/2022]
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296
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Lin YC, Perevedentseva E, Tsai LW, Wu KT, Cheng CL. Nanodiamond for intracellular imaging in the microorganisms in vivo. JOURNAL OF BIOPHOTONICS 2012; 5:838-847. [PMID: 22815227 DOI: 10.1002/jbio.201200088] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 06/18/2012] [Accepted: 06/19/2012] [Indexed: 06/01/2023]
Abstract
Nanodiamond (ND) has great potential for bio labeling and drug delivery. In this work, the biocompatibility and bio labeling of ND are demonstrated via the interaction with cells and microorganisms, protists microorganisms Paramecium caudatum and Tetrahymena thermophile, in vitro and in vivo. We found the microorganism's living functions are not significantly affected by ND. The NDs were found entering the food vacuoles and later excreted by the microorganisms. The 5 nm ND was found more toxic compared to 100 nm ND, presumably due to the surface disordered carbons. Our results demonstrated nanodiamond can be used in bio imaging and matter delivery.
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Affiliation(s)
- Yu-Chung Lin
- Department of Physics, National Dong Hwa University, Hualien, Taiwan
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297
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Gupta BK, Narayanan TN, Vithayathil SA, Lee Y, Koshy S, Reddy ALM, Saha A, Shanker V, Singh VN, Kaipparettu BA, Martí AA, Ajayan PM. Highly luminescent-paramagnetic nanophosphor probes for in vitro high-contrast imaging of human breast cancer cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:3028-3034. [PMID: 22807340 DOI: 10.1002/smll.201200909] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Indexed: 06/01/2023]
Abstract
Highly luminescent-paramagnetic nanophosphors have a seminal role in biotechnology and biomedical research due to their potential applications in biolabeling, bioimaging, and drug delivery. Herein, the synthesis of high-quality, ultrafine, europium-doped yttrium oxide nanophosphors (Y(1.9)O(3):Eu(0.1)(3+)) using a modified sol-gel technique is reported and in vitro fluorescence imaging studies are demonstrated in human breast cancer cells. These highly luminescent nanophosphors with an average particle size of ≈6 nm provide high-contrast optical imaging and decreased light scattering. In vitro cellular uptake is shown by fluorescence microscopy, which visualizes the characteristic intense hypersensitive red emission of Eu(3+) peaking at 610 nm ((5)D(0)-(7)F(2)) upon 246 nm UV light excitation. No apparent cytotoxicity is observed. Subsequently, time-resolved emission spectroscopy and SQUID magnetometry measurements demonstrate a photoluminescence decay time in milliseconds and paramagnetic behavior, which assure applications of the nanophosphors in biomedical studies.
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Affiliation(s)
- Bipin Kumar Gupta
- National Physical Laboratory (CSIR), Dr K S Krishnan Road, New Delhi 110012, India.
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298
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Wu J, Chen Q, Liu W, Zhang Y, Lin JM. Cytotoxicity of quantum dots assay on a microfluidic 3D-culture device based on modeling diffusion process between blood vessels and tissues. LAB ON A CHIP 2012; 12:3474-3480. [PMID: 22836595 DOI: 10.1039/c2lc40502d] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this work, a novel quantum dot (QD) cytotoxicity assay platform on a microfluidic three-dimensional (3D) culture device via imitating the diffusion process between blood vessels and tissues was developed. The device is composed of a main channel and two sets of cell culture chambers. The cell culture chambers were located at different distances from the main channel and were divided into "close chambers" and "far chambers". HepG2 cells were cultured in an agarose matrix under 3D conditions and kept at high viability for at least three days. Fluorescein sodium and fluorescein isothiocyanate conjugated to bovine serum albumin (FITC-BSA) were used as models to demonstrate the diffusion process between main channel and cell culture chambers. QD cytotoxicity was evaluated by determining cell apoptosis, intracellular reactive oxygen species (ROS) and glutathione (GSH) with specific fluorescence probes. Cell autophagy inhibitor 3-methyladenine (3-MA) could reduce cell apoptosis at low concentrations of QDs, which proves that cell autophagy plays a key role in QD cytotoxicity. The effect of a series of 3-MA solutions on cell apoptosis at QD concentration of 40 μg mL(-1) was investigated, which showed that the percentage of cell apoptosis decreased ∼15% from 0 to 12 mM 3-MA. The device shows potential as a high-throughput, low-cost and time-saving platform and constructs a more vivid biomimetic microenvironment for the QD cytotoxicity study.
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Affiliation(s)
- Jing Wu
- Beijing Key Laboratory of Microanalytical Method and Instrumentation, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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299
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Zhang B, Fang CY, Chang CC, Peterson R, Maswadi S, Glickman RD, Chang HC, Ye JY. Photoacoustic emission from fluorescent nanodiamonds enhanced with gold nanoparticles. BIOMEDICAL OPTICS EXPRESS 2012; 3:1662-29. [PMID: 22808436 PMCID: PMC3395489 DOI: 10.1364/boe.3.001662] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 06/14/2012] [Accepted: 06/18/2012] [Indexed: 05/13/2023]
Abstract
Fluorescent nanodiamonds (FNDs) have drawn much attention in recent years for biomedical imaging applications due to their desired physical properties including excellent photostability, high biocompatibility, extended far-red fluorescence emission, and ease of surface functionalization. Here we explore a new feature of FNDs, i.e. their photoacoustic emission capability, which may lead to potential applications of using FNDs as a dual imaging contrast agent for combined fluorescence and photoacoustic imaging modalities. We observed significant enhancement of photoacoustic emission from FNDs when they were conjugated with gold nanoparticles (GNPs).
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Affiliation(s)
- Bailin Zhang
- Department of Biomedical Engineering, University of Texas at San Antonio, 1 UTSA Circle, San Antonio, Texas 78249, USA
| | - Chia-Yi Fang
- Institute of Atomic and Molecular Sciences, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan
| | - Cheng-Chun Chang
- Institute of Atomic and Molecular Sciences, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan
| | - Ralph Peterson
- Department of Biomedical Engineering, University of Texas at San Antonio, 1 UTSA Circle, San Antonio, Texas 78249, USA
| | - Saher Maswadi
- The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio Texas 78229, USA
| | - Randolph D. Glickman
- The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio Texas 78229, USA
| | - Huan-Cheng Chang
- Institute of Atomic and Molecular Sciences, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan
| | - Jing Yong Ye
- Department of Biomedical Engineering, University of Texas at San Antonio, 1 UTSA Circle, San Antonio, Texas 78249, USA
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300
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Cui X, Liu X, Tatton AS, Brown SP, Ye H, Marsh A. Nanodiamond promotes surfactant-mediated triglyceride removal from a hydrophobic surface at or below room temperature. ACS APPLIED MATERIALS & INTERFACES 2012; 4:3225-32. [PMID: 22676238 DOI: 10.1021/am300560z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We demonstrate that ca. 5 nm nanodiamond particles dramatically improve triglyceride lipid removal from a hydrophobic surface at room temperature using either anionic or nonionic surfactants. We prepare nanodiamond-surfactant colloids, measure their stability by dynamic light scattering and use quartz crystal microbalance-dissipation, a technique sensitive to surface mass, in order to compare their ability to remove surface-bound model triglyceride lipid with ionic and nonionic aqueous surfactants at 15-25 °C. Oxidized, reduced, ω-alkylcarboxylic acid, and ω-alkylamidoamine surface-modified adducts are prepared, and then characterized by techniques including (13)C cross-polarization (CP) magic-angle spinning (MAS) NMR. Clear improvement in removal of triglyceride was observed in the presence of nanodiamond, even at 15 °C, both with nanodiamond-surfactant colloids, and by prior nanoparticle deposition on interfacial lipid, showing that nanodiamonds are playing a crucial role in the enhancement of the detergency process, providing unique leads in the development of new approaches to low-temperature cleaning.
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Affiliation(s)
- Xianjin Cui
- School of Engineering and Applied Science, Aston University , Birmingham, B4 7ET United Kingdom
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