1
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Zhang L, Lin Z, Chen Y, Gao D, Wang P, Lin Y, Wang Y, Wang F, Han Y, Yuan H. Co-delivery of Docetaxel and Resveratrol by liposomes synergistically boosts antitumor efficiency against prostate cancer. Eur J Pharm Sci 2022; 174:106199. [DOI: 10.1016/j.ejps.2022.106199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 03/26/2022] [Accepted: 04/28/2022] [Indexed: 12/28/2022]
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2
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Kabashin AV, Singh A, Swihart MT, Zavestovskaya IN, Prasad PN. Laser-Processed Nanosilicon: A Multifunctional Nanomaterial for Energy and Healthcare. ACS NANO 2019; 13:9841-9867. [PMID: 31490658 DOI: 10.1021/acsnano.9b04610] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This review describes promising laser-based approaches to produce silicon nanostructures, including laser ablation of solid Si targets in residual gases and liquids and laser pyrolysis of silane. These methods are different from, and complementary to, widely used porous silicon technology and alternative synthesis routes. One can use these methods to make stable colloidal dispersions of silicon nanoparticles in both organic and aqueous media, which are suitable for a multitude of applications across the important fields of energy and healthcare. Size tailoring allows production of Si quantum dots with efficient photoluminescence that can be tuned across a broad spectral range from the visible to near-IR by varying particle size and surface functionalization. These nanoparticles can also be integrated with other nanomaterials to make multifunctional composites incorporating magnetic and/or plasmonic components. In the energy domain, this review highlights applications to photovoltaics and photodetectors, nanostructured silicon anodes for lithium ion batteries, and hydrogen generation from water. Application to nanobiophotonics and nanomedicine profits from the excellent biocompatibility and biodegradability of nanosilicon. These applications encompass several types of bioimaging and various therapies, including photodynamic therapy, RF thermal therapy, and radiotherapy. The review concludes with a discussion of challenges and opportunities in the applications of laser-processed nanosilicon.
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Affiliation(s)
- Andrei V Kabashin
- Aix-Marseille Univ , CNRS, LP3, Marseille 13288 , France
- MEPhI, Institute of Engineering Physics for Biomedicine (PhysBio) , 31 Kashirskoe sh. , 115409 Moscow , Russia
| | - Ajay Singh
- Institute for Lasers, Photonics, and Biophotonics , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
| | - Mark T Swihart
- Institute for Lasers, Photonics, and Biophotonics , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
- Department of Chemical and Biological Engineering and RENEW Institute , University at Buffalo, The State University of New York , Buffalo , New York 14260-4200 , United States
| | - Irina N Zavestovskaya
- MEPhI, Institute of Engineering Physics for Biomedicine (PhysBio) , 31 Kashirskoe sh. , 115409 Moscow , Russia
| | - Paras N Prasad
- MEPhI, Institute of Engineering Physics for Biomedicine (PhysBio) , 31 Kashirskoe sh. , 115409 Moscow , Russia
- Institute for Lasers, Photonics, and Biophotonics , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
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3
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Tummers WS, Willmann JK, Bonsing BA, Vahrmeijer AL, Gambhir SS, Swijnenburg RJ. Advances in Diagnostic and Intraoperative Molecular Imaging of Pancreatic Cancer. Pancreas 2018; 47:675-689. [PMID: 29894417 PMCID: PMC6003672 DOI: 10.1097/mpa.0000000000001075] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) has a dismal prognosis. To improve outcomes, there is a critical need for improved tools for detection, accurate staging, and resectability assessment. This could improve patient stratification for the most optimal primary treatment modality. Molecular imaging, used in combination with tumor-specific imaging agents, can improve established imaging methods for PDAC. These novel, tumor-specific imaging agents developed to target specific biomarkers have the potential to specifically differentiate between malignant and benign diseases, such as pancreatitis. When these agents are coupled to various types of labels, this type of molecular imaging can provide integrated diagnostic, noninvasive imaging of PDAC as well as image-guided pancreatic surgery. This review provides a detailed overview of the current clinical imaging applications, upcoming molecular imaging strategies for PDAC, and potential targets for imaging, with an emphasis on intraoperative imaging applications.
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Affiliation(s)
- Willemieke S. Tummers
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA. Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Juergen K. Willmann
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA. Juergen K. Willmann died January 8, 2018
| | - Bert A. Bonsing
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Sanjiv S. Gambhir
- Address correspondence to: R.J. Swijnenburg, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands (). Tel: +31 71 526 4005, Fax: +31 71 526 6750
| | - Rutger-Jan Swijnenburg
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
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4
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Xu G, Zeng S, Zhang B, Swihart MT, Yong KT, Prasad PN. New Generation Cadmium-Free Quantum Dots for Biophotonics and Nanomedicine. Chem Rev 2016; 116:12234-12327. [DOI: 10.1021/acs.chemrev.6b00290] [Citation(s) in RCA: 395] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Gaixia Xu
- Key
Laboratory of Optoelectronics Devices and Systems of Ministry of Education/Guangdong
Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People’s Republic of China
- CINTRA
CNRS/NTU/THALES,
UMI 3288, Research Techno Plaza, 50
Nanyang Drive, Border X Block, Singapore 637553, Singapore
| | - Shuwen Zeng
- School
of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
- CINTRA
CNRS/NTU/THALES,
UMI 3288, Research Techno Plaza, 50
Nanyang Drive, Border X Block, Singapore 637553, Singapore
| | - Butian Zhang
- School
of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | | | - Ken-Tye Yong
- School
of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
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5
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Fujii M, Sugimoto H, Imakita K. All-inorganic colloidal silicon nanocrystals-surface modification by boron and phosphorus co-doping. NANOTECHNOLOGY 2016; 27:262001. [PMID: 27189818 DOI: 10.1088/0957-4484/27/26/262001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Si nanocrystals (Si-NCs) with extremely heavily B- and P-doped shells are developed and their structural and optical properties are studied. Unlike conventional Si-NCs without doping, B and P co-doped Si-NCs are dispersible in alcohol and water perfectly without any surface functionalization processes. The colloidal solution of co-doped Si-NCs is very stable and no precipitates are observed for more than 5 years. The co-doped colloidal Si-NCs exhibit size-controllable photoluminescence (PL) in a very wide energy range covering 0.85 to 1.85 eV. In this paper, we summarize the structural and optical properties of co-doped Si-NCs and demonstrate that they are a new type of environmentally-friendly nano-light emitter working in aqueous environments in the visible and near infrared (NIR) ranges.
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Affiliation(s)
- Minoru Fujii
- Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan
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6
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Combination Therapy using Co-encapsulated Resveratrol and Paclitaxel in Liposomes for Drug Resistance Reversal in Breast Cancer Cells in vivo. Sci Rep 2016; 6:22390. [PMID: 26947928 PMCID: PMC4780086 DOI: 10.1038/srep22390] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 02/11/2016] [Indexed: 12/19/2022] Open
Abstract
Multidrug resistance (MDR) is a major impediment to cancer treatment. A promising strategy for treating MDR is the joint delivery of combined anticancer agents to tumor cells in a single nanocarrier. Here, for the first time, Resveratrol (Res) was co-encapsulated with paclitaxel (PTX) in a PEGylated liposome to construct a carrier-delivered form of combination therapy for drug-resistant tumors. The composite liposome had an average diameter of 50 nm with encapsulated efficiencies of above 50%. The studies demonstrated that the composite liposome could generate potent cytotoxicity against the drug-resistant MCF-7/Adr tumor cells in vitro and enhance the bioavailability and the tumor-retention of the drugs in vivo. Moreover, systemic therapy with the composite liposome effectively inhibited drug-resistant tumor in mice (p < 0.01), without any notable increase in the toxicity. These results suggested that the co-delivery of Res and a cytotoxic agent in a nanocarrier may potentially improve the treatment of drug-resistant tumors.
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7
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Joo J, Liu X, Kotamraju VR, Ruoslahti E, Nam Y, Sailor MJ. Gated Luminescence Imaging of Silicon Nanoparticles. ACS NANO 2015; 9:6233-41. [PMID: 26034817 PMCID: PMC4931905 DOI: 10.1021/acsnano.5b01594] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The luminescence lifetime of nanocrystalline silicon is typically on the order of microseconds, significantly longer than the nanosecond lifetimes exhibited by fluorescent molecules naturally present in cells and tissues. Time-gated imaging, where the image is acquired at a time after termination of an excitation pulse, allows discrimination of a silicon nanoparticle probe from these endogenous signals. Because of the microsecond time scale for silicon emission, time-gated imaging is relatively simple to implement for this biocompatible and nontoxic probe. Here a time-gated system with ∼10 ns resolution is described, using an intensified CCD camera and pulsed LED or laser excitation sources. The method is demonstrated by tracking the fate of mesoporous silicon nanoparticles containing the tumor-targeting peptide iRGD, administered by retro-orbital injection into live mice. Imaging of such systemically administered nanoparticles in vivo is particularly challenging because of the low concentration of probe in the targeted tissues and relatively high background signals from tissue autofluorescence. Contrast improvements of >100-fold (relative to steady-state imaging) is demonstrated in the targeted tissues.
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Affiliation(s)
- Jinmyoung Joo
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, mc 0358, La Jolla, California 92093, United States
| | - Xiangyou Liu
- Cancer Research Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - Venkata Ramana Kotamraju
- Cancer Research Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
| | - Erkki Ruoslahti
- Cancer Research Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, United States
- Center for Nanomedicine and Department of Cell, Molecular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, California 93106-9610, United States
| | - Yoonkey Nam
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
| | - Michael J. Sailor
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, mc 0358, La Jolla, California 92093, United States
- Address correspondence to
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8
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Cassidy C, Singh V, Grammatikopoulos P, Djurabekova F, Nordlund K, Sowwan M. Inoculation of silicon nanoparticles with silver atoms. Sci Rep 2013; 3:3083. [PMID: 24170178 PMCID: PMC3812657 DOI: 10.1038/srep03083] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 10/14/2013] [Indexed: 11/10/2022] Open
Abstract
Silicon (Si) nanoparticles were coated inflight with silver (Ag) atoms using a novel method to prepare multicomponent heterostructured metal-semiconductor nanoparticles. Molecular dynamics (MD) computer simulations were employed, supported by high-resolution bright field (BF) transmission electron microscopy (HRTEM) and aberration-corrected scanning transmission electron microscopy (STEM) with a resolution ≤0.1 nm in high angle annular dark field (HAADF) mode. These studies revealed that the alloying behavior and phase dynamics during the coating process are more complex than when attaching hetero-atoms to preformed nanoparticles. According to the MD simulations, Ag atoms condense, nucleate and diffuse into the liquid Si nanoparticles in a process that we term “inoculation”, and a phase transition begins. Subsequent solidification involves an intermediate alloying stage that enabled us to control the microstructure and crystallinity of the solidified hybrid heterostructured nanoparticles.
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Affiliation(s)
- Cathal Cassidy
- Nanoparticles by Design Unit, Okinawa Institute of Science and Technology (OIST) Graduate University, 1919-1 Onna-Son, Okinawa, 904-0495, Japan
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9
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Erogbogbo F, May J, Swihart M, Prasad PN, Smart K, Jack SE, Korcyk D, Webster M, Stewart R, Zeng I, Jullig M, Bakeev K, Jamieson M, Kasabov N, Gopalan B, Liang L, Hu R, Schliebs S, Villas-Boas S, Gladding P. Bioengineering silicon quantum dot theranostics using a network analysis of metabolomic and proteomic data in cardiac ischemia. Am J Cancer Res 2013; 3:719-28. [PMID: 24019856 PMCID: PMC3767118 DOI: 10.7150/thno.5010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 07/05/2013] [Indexed: 01/24/2023] Open
Abstract
Metabolomic profiling is ideally suited for the analysis of cardiac metabolism in healthy and diseased states. Here, we show that systematic discovery of biomarkers of ischemic preconditioning using metabolomics can be translated to potential nanotheranostics. Thirty-three patients underwent percutaneous coronary intervention (PCI) after myocardial infarction. Blood was sampled from catheters in the coronary sinus, aorta and femoral vein before coronary occlusion and 20 minutes after one minute of coronary occlusion. Plasma was analysed using GC-MS metabolomics and iTRAQ LC-MS/MS proteomics. Proteins and metabolites were mapped into the Metacore network database (GeneGo, MI, USA) to establish functional relevance. Expression of 13 proteins was significantly different (p<0.05) as a result of PCI. Included amongst these was CD44, a cell surface marker of reperfusion injury. Thirty-eight metabolites were identified using a targeted approach. Using PCA, 42% of their variance was accounted for by 21 metabolites. Multiple metabolic pathways and potential biomarkers of cardiac ischemia, reperfusion and preconditioning were identified. CD44, a marker of reperfusion injury, and myristic acid, a potential preconditioning agent, were incorporated into a nanotheranostic that may be useful for cardiovascular applications. Integrating biomarker discovery techniques into rationally designed nanoconstructs may lead to improvements in disease-specific diagnosis and treatment.
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10
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Drumm DW, Budi A, Per MC, Russo SP, L Hollenberg LC. Ab initio calculation of valley splitting in monolayer δ-doped phosphorus in silicon. NANOSCALE RESEARCH LETTERS 2013; 8:111. [PMID: 23445785 PMCID: PMC3606473 DOI: 10.1186/1556-276x-8-111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 01/26/2013] [Indexed: 05/29/2023]
Abstract
: The differences in energy between electronic bands due to valley splitting are of paramount importance in interpreting transport spectroscopy experiments on state-of-the-art quantum devices defined by scanning tunnelling microscope lithography. Using vasp, we develop a plane-wave density functional theory description of systems which is size limited due to computational tractability. Nonetheless, we provide valuable data for the benchmarking of empirical modelling techniques more capable of extending this discussion to confined disordered systems or actual devices. We then develop a less resource-intensive alternative via localised basis functions in siesta, retaining the physics of the plane-wave description, and extend this model beyond the capability of plane-wave methods to determine the ab initio valley splitting of well-isolated δ-layers. In obtaining an agreement between plane-wave and localised methods, we show that valley splitting has been overestimated in previous ab initio calculations by more than 50%.
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Affiliation(s)
- Daniel W Drumm
- School of Physics, The University of Melbourne, Parkville, Victoria 3010, Australia
- School of Applied Sciences, RMIT University, Melbourne, Victoria 3001, Australia
| | - Akin Budi
- School of Physics, The University of Melbourne, Parkville, Victoria 3010, Australia
- School of Applied Sciences, RMIT University, Melbourne, Victoria 3001, Australia
| | - Manolo C Per
- School of Applied Sciences, RMIT University, Melbourne, Victoria 3001, Australia
- Virtual Nanoscience Laboratory, CSIRO Materials Science and Engineering, Parkville, Victoria 3052, Australia
| | - Salvy P Russo
- School of Applied Sciences, RMIT University, Melbourne, Victoria 3001, Australia
| | - Lloyd C L Hollenberg
- School of Physics, The University of Melbourne, Parkville, Victoria 3010, Australia
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