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Development of Protein Capped Nano Gold for NIR Photothermal and Molecular Imaging Applications for Diagnosis of Cancer Cells: In Vitro Studies. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hassanen EI, Korany RMS, Bakeer AM. Cisplatin-conjugated gold nanoparticles-based drug delivery system for targeting hepatic tumors. J Biochem Mol Toxicol 2021; 35:e22722. [PMID: 33484050 DOI: 10.1002/jbt.22722] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 12/01/2020] [Accepted: 01/09/2021] [Indexed: 01/19/2023]
Abstract
Cisplatin is a highly cytotoxic anticarcinogenic drug used to treat several kinds of solid tumors such as liver tumors. With the increase in the incidences associated with hepatic tumors and a lack of selectivity of cisplatin to cancer cells, it is important to explore new therapeutic strategies against them. The present study was designed to verify the ability of gold nanoparticles (GNPs) to improve the hepatotherapeutic effect of cisplatin against DENA-induced hepatic tumors and to declare its ability to reduce the renal toxicity induced by cisplatin. Forty male Wistar rats were divided into two groups (n = 20): Group (A)-negative control and group (B)-model of hepatocellular tumor induction. After 4 months, each group was subdivided into four subgroups as the following: Group (1) received normal saline, Group (2) was treated by cisplatin, Group (3) was treated by GNPs, Group (4) was treated by GNPs-cisplatin conjugates. Our results revealed a marked elevation in liver and kidney function tests and oxidant levels with a reduction in antioxidant levels in the DENA-administrated group. Remarkable histopathological alterations in the liver and kidney tissue sections were observed and confirmed by the overexpression of the immunohistochemical staining of placental glutathione S-transferase, Hep Par 1, and proliferating cell nuclear antigen. Noticeable improvements in all the measurable toxicological parameters were recorded in the group treated with either GNPs or GNPs-cisplatin conjugate not observed in the group treated with cisplatin. We can conclude that GNPs not only improve the distribution of cisplatin, targeting it to the site of tumors, but it also reduces the renal toxicity induced by cisplatin, which are the primary concerns in cancer therapy.
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Affiliation(s)
| | | | - Adel M Bakeer
- Department of Pathology, Cairo University, Giza, Egypt
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Zhang Y, Du Y, Zhuo Y, Qiu L. Functional Nucleic Acid-Based Live-Cell Fluorescence Imaging. Front Chem 2020; 8:598013. [PMID: 33363111 PMCID: PMC7759623 DOI: 10.3389/fchem.2020.598013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/16/2020] [Indexed: 12/01/2022] Open
Abstract
Cell is the structural and functional unit of organism. It serves as a key research object in various biological processes, such as growth, ontogeny, metabolism and stress. Studying the spatiotemporal distribution and functional activity of specific biological molecules in living cells is crucial for exploring the mechanism governing life. It also facilitates the elucidation of pathogenesis, clinical prevention and disease theranostics. In recent years, the fluorescence imaging technique has been greatly exploited for live-cell imaging. However, the development of molecular probes has lagged far behind. Functional nucleic acids (FNAs), for example, aptamer and DNAzyme, possess special chemical and/or biological functions, hence severing as promising molecular tools for cellular imaging. The current mini review focuses on the applications of FNAs in live-cell fluorescence imaging.
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Affiliation(s)
- Yutong Zhang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, China
| | - Yulin Du
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, China
| | - Yuting Zhuo
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, China
- NHC Key Laboratory of Birth Defect for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
| | - Liping Qiu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha, China
- NHC Key Laboratory of Birth Defect for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
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Dhanalekshmi KI, Sangeetha K, Magesan P, Johnson J, Zhang X, Jayamoorthy K. Photodynamic cancer therapy: role of Ag- and Au-based hybrid nano-photosensitizers. J Biomol Struct Dyn 2020; 40:4766-4773. [PMID: 33300461 DOI: 10.1080/07391102.2020.1858965] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The utilization of photodynamic therapy (PDT) has been rapidly increasing due to its advantage as an effective treatment modality for cancer. The organic photosensitizers employed for PDT have some disadvantages, including high toxicity, non-selectivity toward tumors and poor absorption of light. The low light penetration into the tumor sites resulting from low wavelength of absorption and long-term skin photosensitivity. Hence, the attention toward non-toxic inorganic photosensitizers like noble metal nanoparticles (NPs) has been increasing nowadays. In bioscience, NPs are replacing organic dyes since they have photostability and non-toxicity. Generally, nanomaterials can easily form compounds with other substances as well as organic materials and the modified NPs surface enhances the chemical activity. Among the metal NPs, noble metals, especially gold and silver are attractive because of their size and shape-dependent unique optoelectronic properties. The coating of inorganic/organic materials on top of the noble metal makes the NPs bio-compatible and less toxic. Furthermore, Ag- and Au-based inorganic/organic complex NPs could offer a new possibility because of their unique structures. Meanwhile, the coating of inorganic/organic complex NPs protects the noble metals and stabilizes them against chemical corrosion and enhances the production of reactive oxygen species. Thus, in this review, we have highlighted the role of Ag- and Au-based inorganic/organic hybrid nano-photosensitizers in photodynamic therapy.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- K I Dhanalekshmi
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China
| | - K Sangeetha
- Department of IBT, Bharath Institute of Higher Education & Research, Bharath University, Chennai, Tamil Nadu, India
| | - P Magesan
- Department of Chemistry, Bharath Institute of Higher Education & Research, Bharath University, Chennai, Tamil Nadu, India
| | - Jijo Johnson
- Department of Chemistry, Santhom Malankara Arts and Science College, Edanji, Thiruvananthapuram, Kerala, India
| | - Xiang Zhang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China
| | - K Jayamoorthy
- Department of Chemistry, St. Joseph's College of Engineering, Chennai, Tamil Nadu, India
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Ding Z, Sigdel K, Yang L, Liu Y, Xuan M, Wang X, Gu Z, Wu J, Xie H. Nanotechnology-based drug delivery systems for enhanced diagnosis and therapy of oral cancer. J Mater Chem B 2020; 8:8781-8793. [PMID: 33026383 DOI: 10.1039/d0tb00957a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Oral cancer is a common malignant life-threatening tumor. Despite some advances in traditional therapy, mortality and mobidity rates are high due to delayed diagnosis and ineffective treatment. Additionally, some patients inevitably suffer from various fatal adverse effects during the course of therapy. Therefore, it is imperative to develop novel methods to eradicate oral cancer cells with minimal adverse effects on normal cells. Nanotechnology is a promising and novel vehicle for the diagnosis and treatment of oral cancer with encouraging recent achievements. In this review, we present state-of-the-art nanotechnology-based drug delivery systems employed in the domain of oral cancer, especially for its enhanced diagnosis and therapy. We describe in detail the types of nanotechnology used in the management of oral cancer and summarize administration routes of nanodrugs. Finally, the potential and prospects of nanotechnology-based drug delivery systems as promising modalities of diagnosis and therapy of oral cancer are highlighted.
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Affiliation(s)
- Zhangfan Ding
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China.
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Samani MT, Hashemianzadeh SM. The effect of functionalization on solubility and plasmonic features of gold nanoparticles. J Mol Graph Model 2020; 101:107749. [PMID: 32966917 DOI: 10.1016/j.jmgm.2020.107749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/01/2020] [Accepted: 09/06/2020] [Indexed: 11/26/2022]
Abstract
Effect of functionalization on stability, solubility, and plasmonic features of gold nanoparticle with the general formula of Au18(SR)14 in water solvent has been studied in this work. Thiol functional groups including 1,1-mercapto-ethyl alcohol, s-cysteamine, thioglycolic acid, and beta-mercaptoethanol have been used. Electronic band-gap, excitation energies, dipole moment, and hardness for all gold nanoparticles in water solvent were investigated using the quantum mechanical approach. Intermolecular forces, radial distribution function (RDF), mean square displacement (MSD), and solvation free energy were calculated by using simulation methods. Electronic band-gap, and excitation energy analysis show that surface modification of gold nanoparticles can change their electronic and plasmonic properties. The analysis of dipole moments indicates that ligands affect the nanoparticle's solubility. An increase of hardness and therefore chemical stability can be observed for functionalized nanoparticles compared to the bare structure. Intermolecular energies analyses suggest that structure with 1,1-mercapto ethyl alcohol ligand has the strongest interaction with the solvent. The analysis of RDF diagrams also indicates that the molecule with 1,1-mercapto ethyl alcohol ligand has the sharpest pick. The slope of the linear part of MSD diagrams that is the criterion of solute's lateral diffusion is the highest value for nanoparticle with 1,1-mercapto ethyl alcohol ligand. Furthermore, functionalization also affects solvation free energy contributions. According to obtained data of quantum mechanical calculations and molecular dynamics simulations, it may be concluded that particle with 1,1-mercapto ethyl alcohol is the best ligand for increasing solubility, stability, and plasmonic functions of Au18(SR)14 structures among the examined ones.
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Affiliation(s)
- Mandana Tarakame Samani
- Molecular Simulation Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
| | - Seyed Majid Hashemianzadeh
- Molecular Simulation Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran.
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Ilmi R, Tseriotou E, Stylianou P, Christou YA, Ttofi I, Dietis N, Pitris C, Odysseos AD, Georgiades SN. A Novel Conjugate of Bis[((4-bromophenyl)amino)quinazoline], a EGFR-TK Ligand, with a Fluorescent Ru(II)-Bipyridine Complex Exhibits Specific Subcellular Localization in Mitochondria. Mol Pharm 2019; 16:4260-4273. [PMID: 31508966 DOI: 10.1021/acs.molpharmaceut.9b00608] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The epidermal growth factor receptor (EGFR) is a key target in anticancer research, whose aberrant function in malignancies has been linked to severe irregularities in critical cellular processes, including cell cycle progression, proliferation, differentiation, and survival. EGFR mutant variants, either transmembrane or translocated to the mitochondria and/or the nucleus, often exhibit resistance to EGFR inhibitors. The ability to noninvasively image and quantify EGFR provides novel approaches in the detection, monitoring, and treatment of EGFR-related malignancies. The current study aimed to deliver a new theranostic agent that combines fluorescence imaging properties with EGFR inhibition. This was achieved via conjugation of an in-house-developed ((4-bromophenyl)amino)quinazoline inhibitor of mutant EGFR-TK, selected from a focused aminoquinazoline library, with a [Ru(bipyridine)3]2+ fluorophore. A triethyleneglycol-derived diamino linker featuring (+)-ionizable sites was employed to link the two functional moieties, affording two unprecedented Ru conjugates with 1:1 and 2:1 stoichiometry of aminoquinazoline to the Ru complex (mono-quinazoline-Ru-conjugate and bis-quinazoline-Ru-conjugate, respectively). The bis-quinazoline-Ru-conjugate, which retains an essential inhibitory activity, was found by fluorescence imaging to be effectively uptaken by Uppsala 87 malignant glioma (grade IV malignant glioma) cells. The fluorescence imaging study and a time-resolved fluorescence resonance energy transfer study indicated a specific subcellular distribution of the conjugate that coincides with that of a mitochondria-targeted dye, suggesting mitochondrial localization of the conjugate and potential association with mitochondria-translocated forms of EGFR. Mitochondrial localization was further documented by the specific concentration of the bis-quinazoline-Ru-conjugate in a mitochondrial isolation assay.
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Affiliation(s)
- Rashid Ilmi
- EPOS-Iasis, R&D , 5 Karyatidon Street , Nicosia 2028 , Cyprus
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Chen XJ, Zhang XQ, Liu Q, Zhang J, Zhou G. Nanotechnology: a promising method for oral cancer detection and diagnosis. J Nanobiotechnology 2018; 16:52. [PMID: 29890977 PMCID: PMC5994839 DOI: 10.1186/s12951-018-0378-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 06/01/2018] [Indexed: 12/20/2022] Open
Abstract
Oral cancer is a common and aggressive cancer with high morbidity, mortality, and recurrence rate globally. Early detection is of utmost importance for cancer prevention and disease management. Currently, tissue biopsy remains the gold standard for oral cancer diagnosis, but it is invasive, which may cause patient discomfort. The application of traditional noninvasive methods-such as vital staining, exfoliative cytology, and molecular imaging-is limited by insufficient sensitivity and specificity. Thus, there is an urgent need for exploring noninvasive, highly sensitive, and specific diagnostic techniques. Nano detection systems are known as new emerging noninvasive strategies that bring the detection sensitivity of biomarkers to nano-scale. Moreover, compared to current imaging contrast agents, nanoparticles are more biocompatible, easier to synthesize, and able to target specific surface molecules. Nanoparticles generate localized surface plasmon resonances at near-infrared wavelengths, providing higher image contrast and resolution. Therefore, using nano-based techniques can help clinicians to detect and better monitor diseases during different phases of oral malignancy. Here, we review the progress of nanotechnology-based methods in oral cancer detection and diagnosis.
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Affiliation(s)
- Xiao-Jie Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079 People’s Republic of China
| | - Xue-Qiong Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Qi Liu
- Division of Pharmacoengineering and Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Jing Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079 People’s Republic of China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079 People’s Republic of China
| | - Gang Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079 People’s Republic of China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079 People’s Republic of China
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Li L, Du Y, Chen X, Tian J. Fluorescence Molecular Imaging and Tomography of Matrix Metalloproteinase-Activatable Near-Infrared Fluorescence Probe and Image-Guided Orthotopic Glioma Resection. Mol Imaging Biol 2018; 20:930-939. [DOI: 10.1007/s11307-017-1158-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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10
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Liu KYP, Lu XJD, Cheng YSL, Klieb H, Ng S, McNeil K, Karsan A, Poh CF. An actionable test using loss of heterozygosity in identifying high-risk oral premalignant lesions. Oral Surg Oral Med Oral Pathol Oral Radiol 2017; 126:S2212-4403(17)31208-7. [PMID: 29428696 DOI: 10.1016/j.oooo.2017.10.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 10/03/2017] [Accepted: 10/12/2017] [Indexed: 01/18/2023]
Abstract
OBJECTIVES To develop an actionable test using fluorescence capillary electrophoresis (FCE) to assess loss of heterozygosity (LOH) of histologically similar low-grade lesions (LGLs) to identify high-risk lesions for oral cancer progression. STUDY DESIGN To determine the cutoffs of LOH, the FCE results of 52 surgical margin samples were used to compare with the existing LOH results from the previously validated 32 P-GE approach. Using the developed FCE workflow, an independent set of 102 LGLs with known progression status was used to determine the LOH molecular risk (MR) patterns and associated risk of progression. RESULTS Using 65% cutoff LOH-FCE, the agreement of LOH-32 P-GE had an average of 82.3% (76.8-87.8). Compared with nonprogressors (n = 61), anatomic site and MR patterns (LOH at 9 p21, 3 p14, or 17 p13) were independent risk factors. High-risk profile of tongue and MR3 (LOH at 9 p21 and/or 3 p14 and 17 p13) was significantly associated with progression (hazard ratio [HR] 6.7; 95% confidence interval [CI] 2.6-17.6) with specificity of 98.4% at identifying progressors. CONCLUSIONS We have developed an objective test using LOH to stratify the risk of LGLs. With further validation, it can be used in the clinical settings to provide clinicians additional information guiding the management of these lesions.
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Affiliation(s)
- Kelly Y P Liu
- Department of Oral Medical Biological Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada; Department of Integrative Oncology, BC Cancer Agency, Vancouver, BC, Canada
| | - X J David Lu
- Department of Oral Medical Biological Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada; Department of Integrative Oncology, BC Cancer Agency, Vancouver, BC, Canada
| | - Yi-Shing L Cheng
- Diagnostic Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Hagen Klieb
- Department of Anatomic Pathology and Department of Dentistry, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Samson Ng
- Department of Oral Medical Biological Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada
| | - Kelly McNeil
- Cancer Genetics Laboratory, Pathology and Laboratory Medicine, British Columbia Cancer Agency, University of British Columbia, Vancouver, BC, Canada
| | - Aly Karsan
- Cancer Genetics Laboratory, Pathology and Laboratory Medicine, British Columbia Cancer Agency, University of British Columbia, Vancouver, BC, Canada
| | - Catherine F Poh
- Department of Oral Medical Biological Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada; Department of Integrative Oncology, BC Cancer Agency, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.
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de Puig H, Bosch I, Carré-Camps M, Hamad-Schifferli K. Effect of the Protein Corona on Antibody-Antigen Binding in Nanoparticle Sandwich Immunoassays. Bioconjug Chem 2016; 28:230-238. [PMID: 28095684 DOI: 10.1021/acs.bioconjchem.6b00523] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We investigated the effect of the protein corona on the function of nanoparticle (NP) antibody (Ab) conjugates in dipstick sandwich immunoassays. Ab specific for Zika virus nonstructural protein 1 (NS1) were conjugated to gold NPs, and another anti-NS1 Ab was immobilized onto the nitrocellulose membrane. Sandwich immunoassay formation was influenced by whether the strip was run in corona forming conditions, i.e., in human serum. Strips run in buffer or pure solutions of bovine serum albumin exhibited false positives, but those run in human serum did not. Serum pretreatment of the nitrocellulose also eliminated false positives. Corona formation around the NP-Ab in serum was faster than the immunoassay time scale. Langmuir binding analysis determined how the immobilized Ab affinity for the NP-Ab/NS1 was impacted by corona formation conditions, quantified as an effective dissociation constant, KDeff. Results show that corona formation mediates the specificity and sensitivity of the antibody-antigen interaction of Zika biomarkers in immunoassays, and plays a critical but beneficial role.
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Affiliation(s)
| | | | - Marc Carré-Camps
- Department of Chemical Engineering, Institut Quimic de Sarria, Universitat Ramon Llull , Via Augusta 390, 08017 Barcelona, Spain
| | - Kimberly Hamad-Schifferli
- Department of Engineering, University of Massachusetts Boston , Boston, Massachusetts 02125, United States
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Kilcoyne A, Harisinghani MG, Mahmood U. Prostate Cancer Imaging and Therapy: Potential Role of Nanoparticles. J Nucl Med 2016; 57:105S-110S. [DOI: 10.2967/jnumed.115.170738] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 08/16/2016] [Indexed: 12/17/2022] Open
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Fan L, Tian Y, Yin R, Lou D, Zhang X, Wang M, Ma M, Luo S, Li S, Gu N, Zhang Y. Enzyme catalysis enhanced dark-field imaging as a novel immunohistochemical method. NANOSCALE 2016; 8:8553-8558. [PMID: 26786242 DOI: 10.1039/c5nr08232c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Conventional immunohistochemistry is limited to subjective judgment based on human experience and thus it is clinically required to develop a quantitative immunohistochemical detection. 3,3'-Diaminobenzidin (DAB) aggregates, a type of staining product formed by conventional immunohistochemistry, were found to have a special optical property of dark-field imaging for the first time, and the mechanism was explored. On this basis, a novel immunohistochemical method based on dark-field imaging for detecting HER2 overexpressed in breast cancer was established, and the quantitative analysis standard and relevant software for measuring the scattering intensity was developed. In order to achieve a more sensitive detection, the HRP (horseradish peroxidase)-labeled secondary antibodies conjugated gold nanoparticles were constructed as nanoprobes to load more HRP enzymes, resulting in an enhanced DAB deposition as a dark-field label. Simultaneously, gold nanoparticles also act as a synergistically enhanced agent due to their mimicry of enzyme catalysis and dark-field scattering properties.
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Affiliation(s)
- Lin Fan
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210096, P. R. China.
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Fluorescence guided resection (FGR): A primer for oncology. Photodiagnosis Photodyn Ther 2016; 13:73-80. [DOI: 10.1016/j.pdpdt.2015.11.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/25/2015] [Accepted: 11/26/2015] [Indexed: 01/27/2023]
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15
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Jin C, Zheng J, Li C, Qiu L, Zhang X, Tan W. Aptamers Selected by Cell-SELEX for Molecular Imaging. J Mol Evol 2015; 81:162-71. [PMID: 26584804 PMCID: PMC5510553 DOI: 10.1007/s00239-015-9716-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 11/03/2015] [Indexed: 11/29/2022]
Abstract
Conventional diagnostics for cancer rely primarily on anatomical techniques. However, these techniques cannot monitor the changes at the molecular level in normal cells, which possibly signal the onset of cancer at its very earliest stages. For accurate prediction of the carcinogenesis at the molecular level, targeting ligands have been used in combination with imaging probes to monitor this biological process. Among these targeting ligands, aptamers have high binding affinity to various targets ranging from small molecules to whole organisms, and, hence, exceptional recognition ability. Many recent studies have been reported on aptamer-based molecular imaging, clearly indicating its clinical and diagnostic utility. In this review, we will discuss some key results of these studies.
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Affiliation(s)
- Cheng Jin
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China
| | - Jing Zheng
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China
| | - Chunmei Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Liping Qiu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611-7200, USA
| | - Xiaobing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China.
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China.
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611-7200, USA.
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Sircan-Kucuksayan A, Uyuklu M, Canpolat M. Diffuse reflectance spectroscopy for the measurement of tissue oxygen saturation. Physiol Meas 2015; 36:2461-9. [PMID: 26536251 DOI: 10.1088/0967-3334/36/12/2461] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Tissue oxygen saturation (StO2) is a useful parameter for medical applications. A spectroscopic method has been developed to detect pathologic tissues, due to a lack of normal blood circulation, by measuring StO2. In this study, human blood samples with different levels of oxygen saturation have been prepared and spectra were acquired using an optical fiber probe to investigate the correlation between the oxygen saturation levels and the spectra. A linear correlation between the oxygen saturation and ratio of the intensities (760 nm to 790 nm) of the spectra acquired from blood samples has been found. In a validation study, oxygen saturations of the blood samples were estimated from the spectroscopic measurements with an error of 2.9%. It has also been shown that the linear dependence between the ratio and the oxygen saturation of the blood samples was valid for the blood samples with different hematocrits. Spectra were acquired from the forearms of 30 healthy volunteers to estimate StO2 prior to, at the beginning of, after 2 min, and at the release of total vascular occlusion. The average StO2 of a forearm before and after the two minutes occlusion was significantly different. The results suggested that optical reflectance spectroscopy is a sensitive method to estimate the StO2 levels of human tissue. The technique developed to measure StO2 has potential to detect ischemia in real time.
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Affiliation(s)
- A Sircan-Kucuksayan
- Department of Biophysics, Biomedical Optics Research Unit, Akdeniz University, School of Medicine, Antalya, Turkey
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17
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Mallidi S, Kim S, Karpiouk A, Joshi PP, Sokolov K, Emelianov S. Visualization of molecular composition and functionality of cancer cells using nanoparticle-augmented ultrasound-guided photoacoustics. PHOTOACOUSTICS 2015; 3:26-34. [PMID: 25893171 PMCID: PMC4398809 DOI: 10.1016/j.pacs.2014.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 12/05/2014] [Accepted: 12/11/2014] [Indexed: 05/07/2023]
Abstract
Assessment of molecular signatures of tumors in addition to their anatomy and morphology is desired for effective diagnostic and therapeutic procedures. Development of in vivo imaging techniques that can identify and monitor molecular composition of tumors remains an important challenge in pre-clinical research and medical practice. Here we present a molecular photoacoustic imaging technique that can visualize the presence and activity of an important cancer biomarker - epidermal growth factor receptor (EGFR), utilizing the effect of plasmon resonance coupling between molecular targeted gold nanoparticles. Specifically, spectral analysis of photoacoustic images revealed profound changes in the optical absorption of systemically delivered EGFR-targeted gold nanospheres due to their molecular interactions with tumor cells overexpressing EGFR. In contrast, no changes in optical properties and, therefore, photoacoustic signal, were observed after systemic delivery of non-targeted gold nanoparticles to the tumors. The results indicate that multi-wavelength photoacoustic imaging augmented with molecularly targeted gold nanoparticles has the ability to monitor molecular specific interactions between nanoparticles and cell-surface receptors, allowing visualization of the presence and functional activity of tumor cells. Furthermore, the approach can be used for other cancer cell-surface receptors such as human epidermal growth factor receptor 2 (HER2). Therefore, ultrasound-guided molecular photoacoustic imaging can potentially aid in tumor diagnosis, selection of customized patient-specific treatment, and monitor the therapeutic progression and outcome in vivo.
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Affiliation(s)
- Srivalleesha Mallidi
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Seungsoo Kim
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Andrei Karpiouk
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Pratixa P. Joshi
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Konstantin Sokolov
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
- Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, United States
| | - Stanislav Emelianov
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX 78712, United States
- Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, United States
- Corresponding author at: Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States. Tel.: +1 512 773 2913.
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18
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Yeo ELL, Chua AJS, Parthasarathy K, Yeo HY, Ng ML, Kah JCY. Understanding aggregation-based assays: nature of protein corona and number of epitopes on antigen matters. RSC Adv 2015. [DOI: 10.1039/c4ra12089b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
In this study, we systematically examine how the nature of the protein corona on NPs, formed from either antibody or antigen, and how the number of binding sites or epitopes on the antigen affect aggregation.
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Affiliation(s)
- Eugenia Li Ling Yeo
- Nanomedicine & Nanorobotics Laboratory
- Department of Biomedical Engineering
- National University of Singapore
- Singapore 117575
| | - Anthony Jin Shun Chua
- Flavivirology Laboratory
- Department of Microbiology
- Yong Loo Lin School of Medicine
- National University Health System
- National University of Singapore
| | - Krupakar Parthasarathy
- Flavivirology Laboratory
- Department of Microbiology
- Yong Loo Lin School of Medicine
- National University Health System
- National University of Singapore
| | - Hui Yu Yeo
- Flavivirology Laboratory
- Department of Microbiology
- Yong Loo Lin School of Medicine
- National University Health System
- National University of Singapore
| | - Mah Lee Ng
- Flavivirology Laboratory
- Department of Microbiology
- Yong Loo Lin School of Medicine
- National University Health System
- National University of Singapore
| | - James Chen Yong Kah
- Nanomedicine & Nanorobotics Laboratory
- Department of Biomedical Engineering
- National University of Singapore
- Singapore 117575
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19
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Núñez C, Oliveira E, García-Pardo J, Diniz M, Lorenzo J, Capelo JL, Lodeiro C. A novel quinoline molecular probe and the derived functionalized gold nanoparticles: Sensing properties and cytotoxicity studies in MCF-7 human breast cancer cells. J Inorg Biochem 2014; 137:115-22. [DOI: 10.1016/j.jinorgbio.2014.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 04/10/2014] [Accepted: 04/11/2014] [Indexed: 10/25/2022]
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20
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Park S, Park HH, Kim SY, Kim SJ, Woo K, Ko G. Antiviral properties of silver nanoparticles on a magnetic hybrid colloid. Appl Environ Microbiol 2014; 80:2343-50. [PMID: 24487537 PMCID: PMC3993170 DOI: 10.1128/aem.03427-13] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 01/27/2014] [Indexed: 11/20/2022] Open
Abstract
Silver nanoparticles (AgNPs) are considered to be a potentially useful tool for controlling various pathogens. However, there are concerns about the release of AgNPs into environmental media, as they may generate adverse human health and ecological effects. In this study, we developed and evaluated a novel micrometer-sized magnetic hybrid colloid (MHC) decorated with variously sized AgNPs (AgNP-MHCs). After being applied for disinfection, these particles can be easily recovered from environmental media using their magnetic properties and remain effective for inactivating viral pathogens. We evaluated the efficacy of AgNP-MHCs for inactivating bacteriophage ΦX174, murine norovirus (MNV), and adenovirus serotype 2 (AdV2). These target viruses were exposed to AgNP-MHCs for 1, 3, and 6 h at 25°C and then analyzed by plaque assay and real-time TaqMan PCR. The AgNP-MHCs were exposed to a wide range of pH levels and to tap and surface water to assess their antiviral effects under different environmental conditions. Among the three types of AgNP-MHCs tested, Ag30-MHCs displayed the highest efficacy for inactivating the viruses. The ΦX174 and MNV were reduced by more than 2 log10 after exposure to 4.6 × 10(9) Ag30-MHCs/ml for 1 h. These results indicated that the AgNP-MHCs could be used to inactivate viral pathogens with minimum chance of potential release into environment.
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Affiliation(s)
- SungJun Park
- Department of Environmental Health, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Hye Hun Park
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Sung Yeon Kim
- Department of Environmental Health, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Su Jung Kim
- Department of Environmental Health, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Kyoungja Woo
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - GwangPyo Ko
- Department of Environmental Health, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
- Bio-MAX Institute, Seoul National University, Seoul, Republic of Korea
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21
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Tan J, Delaney P, McLaren WJ. Confocal endomicroscopy: a novel maging technique forin vivohistology of cervical intraepithelial neoplasia. Expert Rev Med Devices 2014; 4:863-71. [DOI: 10.1586/17434440.4.6.863] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Wu X, Tian Y, Yu M, Han J, Han S. A targetable acid-responsive micellar system for signal activation based high performance surgical resolution of tumors. Biomater Sci 2014; 2:972-979. [DOI: 10.1039/c4bm00007b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
High-performance illumination of subcutaneous tumor and liver tumor foci at sub-millimeter levels was achieved with lectin-targeted glyco-micelles which become fluorescent upon internalization into tumor lysosomes.
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Affiliation(s)
- Xuanjun Wu
- Department of Chemical Biology
- College of Chemistry and Chemical Engineering
- The Key Laboratory for Chemical Biology of Fujian Province
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- and Innovation Center for Cell Biology
| | - Yunpeng Tian
- Department of Chemical Biology
- College of Chemistry and Chemical Engineering
- The Key Laboratory for Chemical Biology of Fujian Province
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- and Innovation Center for Cell Biology
| | - Mingzhu Yu
- Department of Chemical Biology
- College of Chemistry and Chemical Engineering
- The Key Laboratory for Chemical Biology of Fujian Province
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- and Innovation Center for Cell Biology
| | - Jiahuai Han
- State Key Laboratory of Cellular Stress Biology
- Innovation Center for Cell Biology
- School of Life Sciences
- Xiamen University
- Xiamen, China
| | - Shoufa Han
- Department of Chemical Biology
- College of Chemistry and Chemical Engineering
- The Key Laboratory for Chemical Biology of Fujian Province
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation
- and Innovation Center for Cell Biology
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23
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Conti L, Lanzardo S, Iezzi M, Montone M, Bolli E, Brioschi C, Maiocchi A, Forni G, Cavallo F. Optical imaging detection of microscopic mammary cancer in ErbB-2 transgenic mice through the DA364 probe binding αv β3 integrins. CONTRAST MEDIA & MOLECULAR IMAGING 2013; 8:350-60. [PMID: 23613438 DOI: 10.1002/cmmi.1529] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 11/23/2012] [Accepted: 01/01/2013] [Indexed: 12/15/2022]
Abstract
Despite spontaneous tumor growth in genetically engineered mice being one of the most recognized tools for the in vivo evaluation of novel diagnostic and therapeutic anticancer compounds, monitoring early stage lesions in live animals is a goal that has yet to be achieved. A large number of targets for the molecular imaging of various diseases have been identified and many imaging technologies, including optical techniques are emerging. One of the most commonly exploited targets in tumor imaging is αv β3 integrin, which plays an important role in the expansion, invasiveness and metastatic capability of a number of cancers, including breast cancer. The aim of this study was to set up an optical imaging method for the early detection of autochthonous mammary cancer in female BALB/c mice transgenic for the rat-ErbB-2 oncogene (BALB-neuT). We show that DA364, a near-infrared fluorescence arginine-glycine-aspartic acid cyclic probe, was taken up by neoplastic mammary glands and that its uptake increased with cancer progression. By contrast, the nonaccumulation of DA364 in the healthy mammary glands of virgin and lactating wild-type mice suggests that the probe specifically targets breast cancers. Comparisons of optical imaging with whole-mount and histological findings showed that DA364 allows the noninvasive visualization of atypical hyperplasia and microscopic foci of in situ carcinoma 2 months before mammary lesions become detectable by palpation. Moreover, DA364 was successfully used to monitor the outcome of anticancer vaccination. Therefore, it can be considered a promising early detection tool in near-infrared noninvasive optical imaging for the early diagnosis of breast cancer.
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Affiliation(s)
- Laura Conti
- Molecular Biotechnology Center, University of Turin, Turin, Italy
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24
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Guerra J, Rodrigo AC, Merino S, Tejeda J, García-Martínez JC, Sánchez-Verdú P, Ceña V, Rodríguez-López J. PPV–PAMAM Hybrid Dendrimers: Self-Assembly and Stabilization of Gold Nanoparticles. Macromolecules 2013. [DOI: 10.1021/ma401505k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Javier Guerra
- Área
de Química Orgánica, Facultad de Ciencias y Tecnologías
Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Ana C. Rodrigo
- Área
de Química Orgánica, Facultad de Ciencias y Tecnologías
Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Sonia Merino
- Área
de Química Orgánica, Facultad de Ciencias y Tecnologías
Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Juan Tejeda
- Área
de Química Orgánica, Facultad de Ciencias y Tecnologías
Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Joaquín C. García-Martínez
- Química
Orgánica Farmacéutica, Facultad de Farmacia, Universidad de Castilla-La Mancha, 02071 Albacete, Spain
| | - Prado Sánchez-Verdú
- Área
de Química Orgánica, Facultad de Ciencias y Tecnologías
Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Valentín Ceña
- Unidad
Asociada Neurodeath, Facultad de Medicina, CSIC-Universidad de Castilla-La Mancha, 02006 Albacete, Spain, and CIBERNED, Instituto de Salud Carlos III, 28071 Madrid, Spain
| | - Julián Rodríguez-López
- Área
de Química Orgánica, Facultad de Ciencias y Tecnologías
Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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25
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Reynoso FJ, Lee CD, Cheong SK, Cho SH. Implementation of a multisource model for gold nanoparticle-mediated plasmonic heating with near-infrared laser by the finite element method. Med Phys 2013; 40:073301. [DOI: 10.1118/1.4808361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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26
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Abramczyk H, Brozek-Pluska B. Raman imaging in biochemical and biomedical applications. Diagnosis and treatment of breast cancer. Chem Rev 2013; 113:5766-81. [PMID: 23697873 DOI: 10.1021/cr300147r] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Halina Abramczyk
- Laboratory of Laser Molecular Spectroscopy, Institute of Applied Radiation Chemistry, Lodz University of Technology , Wroblewskiego 15, 93-590 Lodz, Poland
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27
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Joshi PP, Yoon SJ, Hardin WG, Emelianov S, Sokolov KV. Conjugation of antibodies to gold nanorods through Fc portion: synthesis and molecular specific imaging. Bioconjug Chem 2013; 24:878-88. [PMID: 23631707 DOI: 10.1021/bc3004815] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Anisotropic gold nanorods provide a convenient combination of properties, such as tunability of plasmon resonances and strong extinction cross sections in the near-infrared to red spectral region. These properties have created significant interest in the development of antibody conjugation methods for synthesis of targeted nanorods for a number of biomedical applications, including molecular specific imaging and therapy. Previously published conjugation approaches have achieved molecular specificity. However, the current conjugation methods have several downsides including low stability and potential cytotoxicity of bioconjugates that are produced by electrostatic interactions, as well as lack of control over antibody orientation during covalent conjugation. Here we addressed these shortcomings by introducing directional antibody conjugation to the gold nanorod surface. The directional conjugation is achieved through the carbohydrate moiety, which is located on one of the heavy chains of the Fc portion of most antibodies. The carbohydrate is oxidized under mild conditions to a hydrazide reactive aldehyde group. Then, a heterofunctional linker with hydrazide and dithiol groups is used to attach antibodies to gold nanorods. The directional conjugation approach was characterized using electron microscopy, zeta potential, and extinction spectra. We also determined spectral changes associated with nanorod aggregation; these spectral changes can be used as a convenient quality control of nanorod bioconjugates. Molecular specificity of the synthesized antibody targeted nanorods was demonstrated using hyperspectral, optical and photoacoustic imaging of cancer cell culture models. Additionally, we observed characteristic changes in optical spectra of molecular specific nanorods after their interactions with cancer cells; the observed spectral signatures can be explored for sensitive cancer detection.
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Affiliation(s)
- Pratixa P Joshi
- Department of Biomedical Engineering and §Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712, United States
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28
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Jung SY, Ahn S, Seo E, Lee SJ. Detection of circulating tumor cells via an X-ray imaging technique. JOURNAL OF SYNCHROTRON RADIATION 2013; 20:324-331. [PMID: 23412490 DOI: 10.1107/s090904951204873x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 11/27/2012] [Indexed: 06/01/2023]
Abstract
Detailed information on the location and the size of tumor cells circulating through lymphatic and blood vessels is useful to cancer diagnosis. Metastasis of cancers to other non-adjacent organs is reported to cause 90% of deaths not from the primary tumors. Therefore, effective detection of circulating tumors cells (CTCs) related to metastasis is emphasized in cancer treatments. With the use of synchrotron X-ray micro-imaging techniques, high-resolution images of individual flowing tumor cells were obtained. Positively charged gold nanoparticles (AuNPs) which were inappropriate for incorporation into human red blood cells were selectively incorporated into tumor cells to enhance the image contrast. This approach enables images of individual cancer cells and temporal movements of CTCs to be captured by the high X-ray absorption efficiency of selectively incorporated AuNPs. This new technology for in vivo imaging of CTCs would contribute to improve cancer diagnosis and cancer therapy prognosis.
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Affiliation(s)
- Sung Yong Jung
- Department of Mechanical Engineering, Pohang University of Science and Technology, San 31, Hyojadong, Pohang, Republic of Korea
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29
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High-resolution optical molecular imaging of changes in choline metabolism in oral neoplasia. Transl Oncol 2013; 6:33-41. [PMID: 23418615 DOI: 10.1593/tlo.12289] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 12/14/2012] [Accepted: 12/18/2012] [Indexed: 12/20/2022] Open
Abstract
This study was aimed at developing an optical molecular imaging approach to measure differences in uptake and intracellular retention of choline in clinically isolated tissue biopsies from head and neck cancer patients. An optically detectable analogue of choline (propargyl choline) was synthesized and evaluated in 2D and 3D models and clinically isolated paired biopsies (n = 22 biopsies). Fluorescence contrast between clinically abnormal and normal tissues based on uptake and intracellular retention of propargyl choline was measured and correlated with pathologic diagnosis. Results in 2D and 3D models demonstrated a rapid uptake of propargyl choline in cancer cells, uniform permeation in tissue models, and specific detection of intracellular entrapped propargyl choline using the click chemistry reaction with an azide-modified Alexa 488 dye. Fluorescence imaging measurements following topical delivery of propargyl choline in clinically isolated biopsies showed that the mean fluorescence intensity (MFI) of neoplastic tissues was four-fold to five-fold higher than the MFI of clinically and pathologically normal samples. This difference in fluorescence contrast was measured on the basis of comparison of paired biopsy sets isolated from individual patients as well as comparison of clinically abnormal and normal biopsies independent of anatomic locations in the head and neck cavity and across diverse patients. In conclusion, a novel imaging approach based on monoalkyne-modified choline was developed and validated using cell and tissue models. Results in clinically isolated tissue biopsies demonstrate a significant fluorescent contrast between neoplastic and normal tissues and illustrate high specificity of the optical imaging approach.
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30
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Ankri R, Meiri A, Lau SI, Motiei M, Popovtzer R, Fixler D. Intercoupling surface plasmon resonance and diffusion reflection measurements for real-time cancer detection. JOURNAL OF BIOPHOTONICS 2013; 6:188-96. [PMID: 22461296 DOI: 10.1002/jbio.201200016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Revised: 03/12/2012] [Accepted: 03/12/2012] [Indexed: 05/11/2023]
Abstract
Spatial diffusion reflection (DR) measurements of gold nanorods (GNR) were recently suggested as a simple and highly sensitive non-invasive and non-ionizing method for real-time cancer detection. In this paper we demonstrate that wavelength dependent DR measurements enable the spectral red-shift observation of highly concentrated GNR. By conjugating targeting moieties to the GNR, large density of GNR can specifically home onto cancer cells. The inter-particle plasmon resonance pattern of the highly concentrated GNR leads to an extension and a red-shift (Δλ) in the absorption spectrum of the concentrated GNR. Dark-field microscopy was used in order to measure the expected Δλ in different GNR concentrations in vitro. Double-wavelength DR measurements of tissue-like phantoms and tumor bearing mice containing different GNR concentrations are presented. We show that the DR profile of the highly concentrated GNR directly correlate with the spectral extension and red-shift. This presented work suggests that wavelength dependent DR method can serve as a promising tool for real-time superficial tumor detection.
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Affiliation(s)
- Rinat Ankri
- Faculty of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan, 52900, Israel
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31
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Loja MN, Luo Z, Greg Farwell D, Luu QC, Donald PJ, Amott D, Truong AQ, Gandour-Edwards RF, Nitin N. Optical molecular imaging detects changes in extracellular pH with the development of head and neck cancer. Int J Cancer 2012; 132:1613-23. [PMID: 22965462 DOI: 10.1002/ijc.27837] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 07/11/2012] [Accepted: 07/31/2012] [Indexed: 01/14/2023]
Abstract
Noninvasive localized measurement of extracellular pH in cancer tissues can have a significant impact on the management of cancer. Despite its significance, there are limited approaches for rapid and noninvasive measurement of local pH in a clinical environment. In this study, we demonstrate the potential of noninvasive topical delivery of Alexa-647 labeled pHLIP (pH responsive peptide conjugated with Alexa Fluor(®) 647) to image changes in extracellular pH associated with head and neck squamous cell carcinoma using widefield and high resolution imaging. We report a series of preclinical analyses to evaluate the optical contrast achieved after topical delivery of Alexa-647 labeled pHLIP in intact fresh human tissue specimens using widefield and high-resolution fluorescence imaging. Using topical delivery, Alexa-647 labeled pHLIP can be rapidly delivered throughout the epithelium of intact tissues with a depth exceeding 700 µm. Following labeling with Alexa-647 labeled pHLIP, the mean fluorescent contrast increased four to eight fold higher in clinically abnormal tissues as compared to paired clinically normal biopsies. Furthermore, the imaging approach showed significant differences in fluorescence contrast between the cancer and the normal biopsies across diverse patients and different anatomical sites (unpaired comparison). The fluorescence contrast differences between clinically abnormal and normal tissues were in agreement with the pathologic evaluation. Topical application of fluorescently labeled pHLIP can detect and differentiate normal from cancerous tissues using both widefield and high resolution imaging. This technology will provide an effective tool to assess tumor margins during surgery and improve detection and prognosis of head and neck cancer.
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Affiliation(s)
- Melissa N Loja
- School of Medicine, University of California, Davis, CA, USA
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32
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Dhawan AP, D'Alessandro B, Fu X. Optical imaging modalities for biomedical applications. IEEE Rev Biomed Eng 2012; 3:69-92. [PMID: 22275202 DOI: 10.1109/rbme.2010.2081975] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Optical photographic imaging is a well known imaging method that has been successfully translated into biomedical applications such as microscopy and endoscopy. Although several advanced medical imaging modalities are used today to acquire anatomical, physiological, metabolic, and functional information from the human body, optical imaging modalities including optical coherence tomography, confocal microscopy, multiphoton microscopy, multispectral endoscopy, and diffuse reflectance imaging have recently emerged with significant potential for non-invasive, portable, and cost-effective imaging for biomedical applications spanning tissue, cellular, and molecular levels. This paper reviews methods for modeling the propagation of light photons in a biological medium, as well as optical imaging from organ to cellular levels using visible and near-infrared wavelengths for biomedical and clinical applications.
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Affiliation(s)
- Atam P Dhawan
- Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA.
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33
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Kang JU, Huang Y, Zhang K, Ibrahim Z, Cha J, Lee WPA, Brandacher G, Gehlbach PL. Real-time three-dimensional Fourier-domain optical coherence tomography video image guided microsurgeries. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:081403-1. [PMID: 23224164 PMCID: PMC3381017 DOI: 10.1117/1.jbo.17.8.081403] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 03/03/2012] [Accepted: 03/12/2012] [Indexed: 05/20/2023]
Abstract
The authors describe the development of an ultrafast three-dimensional (3D) optical coherence tomography (OCT) imaging system that provides real-time intraoperative video images of the surgical site to assist surgeons during microsurgical procedures. This system is based on a full-range complex conjugate free Fourier-domain OCT (FD-OCT). The system was built in a CPU-GPU heterogeneous computing architecture capable of video OCT image processing. The system displays at a maximum speed of 10 volume/s for an image volume size of 160 × 80 × 1024(X × Y × Z) pixels. We have used this system to visualize and guide two prototypical microsurgical maneuvers: microvascular anastomosis of the rat femoral artery and ultramicrovascular isolation of the retinal arterioles of the bovine retina. Our preliminary experiments using 3D-OCT-guided microvascular anastomosis showed optimal visualization of the rat femoral artery (diameter<0.8 mm), instruments, and suture material. Real-time intraoperative guidance helped facilitate precise suture placement due to optimized views of the vessel wall during anastomosis. Using the bovine retina as a model system, we have performed "ultra microvascular" feasibility studies by guiding handheld surgical micro-instruments to isolate retinal arterioles (diameter ~0.1 mm). Isolation of the microvessels was confirmed by successfully passing a suture beneath the vessel in the 3D imaging environment.
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Affiliation(s)
- Jin U Kang
- Johns Hopkins University, Department of Electrical and Computer Engineering, 3400 N. Charles Street, Baltimore, MD 21218, USA.
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34
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Jakhmola A, Anton N, Vandamme TF. Inorganic nanoparticles based contrast agents for X-ray computed tomography. Adv Healthc Mater 2012. [PMID: 23184772 DOI: 10.1002/adhm.201200032] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Nanomaterials have gained considerable attention and interest in the development of new and efficient molecular probes for medical diagnosis and imaging. Heavy metal nanoparticles as such are excellent absorber of X-rays and can offer excellent improvement in medical diagnosis and X-ray imaging. Substantial progress has been made in the synthesis protocol and characterization studies of these materials but a major challenge still lies in the toxicological studies, which are rather incomplete. The worst known cases were those associated with Thorotrast (suspension of ThO(2) nanoparticles) which resulted in many deaths over years. Properly protected nanomaterials conjugated or coated with biocompatible materials can be used for the fabrication of various functional systems with multimodality, targeting properties, reduced toxicity and proper removal from the body. This review aims mainly to provide the advances in the development of inorganic nanoparticle based X-ray contrasting agents with an overview of methods of their preparation, functionalization and applications in medical diagnosis.
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Affiliation(s)
- Anshuman Jakhmola
- University of Strasbourg, Faculté de Pharmacie, 74 route du Rhin, BP 60024, F-67401 Illkirch Cedex, France, CNRS 7199, Laboratoire de Conception, et Application de Molécules Bioactives, équipe de Pharmacie Biogalénique
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Brozek-Pluska B, Jarota A, Jablonska-Gajewicz J, Kordek R, Czajkowski W, Abramczyk H. Distribution of phthalocyanines and Raman reporters in human cancerous and noncancerous breast tissue as studied by Raman imaging. Technol Cancer Res Treat 2012; 11:317-31. [PMID: 22712604 DOI: 10.7785/tcrt.2012.500280] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
There is a considerable interest in the developing new diagnostic techniques allowing noninvasive tracking of the progress of therapies used to treat a cancer. Raman imaging of distribution of phthalocyanine photosensitizers may open new possibilities of Photodynamic Therapy (PDT) to treat a wide range of neoplastic lesions with improved effectiveness of treatment through precise identification of malignant areas. We have employed Raman imaging and Raman spectroscopy to analyze human breast cancer tissue that interacts with photosensitizers used in the photodynamic therapy of cancer. PCA (Principal Component Analysis) has been employed to analyze various areas of the noncancerous and cancerous breast tissues. The results show that the emission spectra combined with the Raman images are very sensitive indicators to specify the aggregation state and the distribution of phthalocyanines in the cancerous and noncancerous breast tissues. Our results provide experimental evidence on the role of aggregation of phthalocyanines as a factor of particular significance in differentiation of the normal and tumourous (cancerous or benign pathology) breast tissues. We conclude that the Raman imaging reported here has a potential to be a novel and effective photodynamic therapeutic method with improved selectivity for the treatment of breast cancer.
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Affiliation(s)
- Beata Brozek-Pluska
- Technical University of Lodz, Institute of Applied Radiation Chemistry, Laboratory of Laser Molecular Spectroscopy, Wroblewskiego 15, 93-590 Lodz, Poland
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36
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Hong H, Goel S, Zhang Y, Cai W. Molecular imaging with nucleic acid aptamers. Curr Med Chem 2012; 18:4195-205. [PMID: 21838686 DOI: 10.2174/092986711797189691] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 06/22/2011] [Accepted: 06/22/2011] [Indexed: 01/16/2023]
Abstract
With many desirable properties such as ease of synthesis, small size, lack of immunogenicity, and versatile chemistry, aptamers represent a class of targeting ligands that possess tremendous potential in molecular imaging applications. Non-invasive imaging of various disease markers with aptamer-based probes has many potential clinical applications such as lesion detection, patient stratification, treatment monitoring, etc. In this review, we will summarize the current status of molecular imaging with aptamer-based probes. First, fluorescence imaging will be described which include both direct targeting and activatable probes. Next, we discuss molecular magnetic resonance imaging and targeted ultrasound investigations using aptamer-based agents. Radionuclide-based imaging techniques (single-photon emission computed tomography and positron emission tomography) will be summarized as well. In addition, aptamers have also been labeled with various tags for computed tomography, surface plasmon resonance, dark-field light scattering microscopy, transmission electron microscopy, and surface-enhanced Raman spectroscopy imaging. Among all molecular imaging modalities, no single modality is perfect and sufficient to obtain all the necessary information for a particular question. Thus, a multimodality probe has also been constructed for concurrent fluorescence, gamma camera, and magnetic resonance imaging in vivo. Although the future of aptamer-based molecular imaging is becoming increasingly bright and many proof-of-principle studies have already been reported, much future effort needs to be directed towards the development of clinically translatable aptamer-based imaging agents which will eventually benefit patients.
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Affiliation(s)
- H Hong
- Department of Radiology, University of Wisconsin-Madison, 1111 Highland Ave, Madison, WI 53705-2275, USA
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Li Z, Song Y, Yang Y, Yang L, Huang X, Han J, Han S. Rhodamine-deoxylactam functionalized poly[styrene-alter-(maleic acid)]s as lysosome activatable probes for intraoperative detection of tumors. Chem Sci 2012. [DOI: 10.1039/c2sc20733h] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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38
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KHO KIANGWEI, KAH JAMESCHENYONG, LEE CAROLINEGUATLENG, SHEPPARD COLLINJAMESRICHARD, SHEN ZEXIANG, SOO KHEECHEE, OLIVO MALINICAROLENE. APPLICATIONS OF GOLD NANOPARTICLES IN THE EARLY DETECTION OF CANCER. J MECH MED BIOL 2011. [DOI: 10.1142/s021951940700211x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Worldwide, oral cancer is the sixth most common cancer for both sexes. In Singapore, the 5-year survival rate of oral cancer is about 50%. The high mortality rate has been attributed to the difficulties in detecting the disease in an early treatable stage. Here, we present two application examples of gold nanoparticles in the early detection of oral cancer. In the first, gold nanoparticles were used as a reflective contrast agent for performing molecular imaging under confocal reflectance microscopy for the early diagnosis of epithelial carcinoma. While in the second, closely-packed gold nanoparticle, films were used as a bio-sensing surface for the chemical analysis of saliva via Surface Enhanced Raman Scattering. Preliminary results will be discussed.
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Affiliation(s)
- KIANG WEI KHO
- Division of Medical Sciences, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Singapore
| | - JAMES CHEN YONG KAH
- Division of Medical Sciences, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Singapore
| | - CAROLINE GUAT LENG LEE
- Division of Medical Sciences, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Singapore
| | | | - ZE XIANG SHEN
- Division of Medical Sciences, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Singapore
| | - KHEE CHEE SOO
- Division of Medical Sciences, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Singapore
| | - MALINI CAROLENE OLIVO
- Division of Medical Sciences, National Cancer Centre, 11 Hospital Drive, Singapore 169610, Singapore
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Barchanski A, Taylor U, Klein S, Petersen S, Rath D, Barcikowski S. Golden Perspective: Application of Laser-Generated Gold Nanoparticle Conjugates in Reproductive Biology. Reprod Domest Anim 2011; 46 Suppl 3:42-52. [DOI: 10.1111/j.1439-0531.2011.01844.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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40
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Shan HB, Zhang R, Li Y, Xu GL, Luo GY, Gao XY, Yang HL. Expression of IGF-1R in Colorectal Polyps and its Role in Colorectal Carcinogenesis. Technol Cancer Res Treat 2011; 10:381-9. [DOI: 10.7785/tcrt.2012.500215] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Insulin-like Growth Factor Receptor 1 (IGF-1R) may play a role in the neoplastic progression of colorectal cancer because it is related to both cellular proliferation and differentiation. The aim of this study was to further elucidate the role of IGF-1R in colorectal carcinogenesis by evaluating IGF-1R expression in different types of precancerous colorectal polyps and comparing its expression to normal mucosa and colorectal carcinoma. A total of 47 colorectal polyps and their respective adjacent normal mucosa were collected from 32 patients. In addition, 20 colorectal adenocarcinoma tissues were obtained from patients undergoing colorectal resection, and 12 normal non-malignant colorectal mucosal tissues collected from outpatients served as the control group. The pit patterns of polyps were classified by the Kudo classification scheme through magnifying chromoendoscopy. Immunohistochemistry and quantitative real-time RT-PCR were utilized for expression analysis of IGF-1R in colorectal mucosa, polyps, and adenocarcinoma tissue. The results of immunohistochemistry showed no significant differences in IGF-1R expression in inflammatory polyps compared with their surrounding normal mucosa by the Mann-Whitney U test (p = 0.251); however, tubular adenoma and villous adenoma tissues exhibited significantly higher levels of IGF-1R expression (p = 0.000). The results of real-time RT-PCR showed that IGF-1R was transcribed at a high level in colorectal adenomatous polyps and adenocarcinoma compared with their respective paired normal mucosa. Spearman's rank correlation two-variable analysis was used to demonstrate a significant correlation between the expression of IGF-1R and neoplastic progression from normal mucosa to adenomatous polyps and finally to colorectal cancer (r = 0.574, p = 0.000). This study suggests that the expression of IGF-1R correlates with the degree of carcinogenesis. In addition, these results demonstrated that there is a significant correlation between the level of IGF-1R expression and pit patterns of polyps (r = 0.432, p = 0.002). Thus, IGF-1R might be a factor in the morphological change of colorectal mucosal crypts, and it may play an important role in the growth and malignant transformation of precancerous polyps. These results suggest that IGF-1R can be considered a biomarker for the stage and risk of carcinogenesis during neoplastic initiation and progression along the colorectal normal mucosa-polyp-cancer sequence. Inhibitors of IGF-1R are not only a promising targeted anticancer strategy, but also a possible option for the chemoprevention of colorectal cancer.
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Affiliation(s)
- H-B. Shan
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, 510060, P.R.China
- Department of Endoscopy, Cancer Center, Guangzhou, Guangdong, 510060, P.R.China
| | - R. Zhang
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, 510060, P.R.China
- Department of Endoscopy, Cancer Center, Guangzhou, Guangdong, 510060, P.R.China
| | - Y. Li
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, 510060, P.R.China
- Department of Endoscopy, Cancer Center, Guangzhou, Guangdong, 510060, P.R.China
| | - G-L. Xu
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, 510060, P.R.China
- Department of Endoscopy, Cancer Center, Guangzhou, Guangdong, 510060, P.R.China
| | - G-Y. Luo
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, 510060, P.R.China
- Department of Endoscopy, Cancer Center, Guangzhou, Guangdong, 510060, P.R.China
| | - X-Y. Gao
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, 510060, P.R.China
- Department of Endoscopy, Cancer Center, Guangzhou, Guangdong, 510060, P.R.China
| | - H-L. Yang
- State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, 510060, P.R.China
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, P.R.China
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Cihan C, Arifler D. Influence of phase function on modeled optical response of nanoparticle-labeled epithelial tissues. JOURNAL OF BIOMEDICAL OPTICS 2011; 16:085002. [PMID: 21895310 DOI: 10.1117/1.3608999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Metal nanoparticles can be functionalized with biomolecules to selectively localize in precancerous tissues and can act as optical contrast enhancers for reflectance-based diagnosis of epithelial precancer. We carry out Monte Carlo (MC) simulations to analyze photon propagation through nanoparticle-labeled tissues and to reveal the importance of using a proper form of phase function for modeling purposes. We first employ modified phase functions generated with a weighting scheme that accounts for the relative scattering strengths of unlabeled tissue and nanoparticles. To present a comparative analysis, we repeat our MC simulations with simplified functions that only approximate the angular scattering properties of labeled tissues. The results obtained for common optical sensor geometries and biologically relevant labeling schemes indicate that the exact form of the phase function used as model input plays an important role in determining the reflectance response and approximating functions often prove inadequate in predicting the extent of contrast enhancement due to labeling. Detected reflectance intensities computed with different phase functions can differ up to ∼60% and such a significant deviation may even alter the perceived contrast profile. These results need to be taken into account when developing photon propagation models to assess the diagnostic potential of nanoparticle-enhanced optical measurements.
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Affiliation(s)
- Can Cihan
- Bilkent University, Department of Electrical and Electronics Engineering, TR-06800 Bilkent, Ankara, Turkey
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Kyrish M, Utzinger U, Descour MR, Baggett BK, Tkaczyk TS. Ultra-slim plastic endomicroscope objective for non-linear microscopy. OPTICS EXPRESS 2011; 19:7603-15. [PMID: 21503069 PMCID: PMC3097473 DOI: 10.1364/oe.19.007603] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 03/28/2011] [Accepted: 03/29/2011] [Indexed: 05/21/2023]
Abstract
Non-linear microscopy has the potential to provide clinically useful information on the structure of biological tissue in vivo via an endomicroscope. The ability to use plastic as the optical material in a multiphoton objective was evaluated based on several criteria including autofluorescence, injection molding induced birefringence, and pulse broadening due to group velocity dispersion. An all-plastic, refractive ultra-slim endoscope objective was built with design specifications of NA=0.4, FOV=250 μm, 1.27 mm outer diameter, and 0.8 mm clear aperture. Initial images of second-harmonic generation signal (illumination at 780 nm) in collagen fibers and two-photon excited fluorescence (illumination at 920 nm) of Convallaria rhizome are reported.
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Affiliation(s)
- Matthew Kyrish
- Department of Bioengineering, Rice University, MS 142, 6100 Main St., Houston, Texas, 77005,
USA
| | - Urs Utzinger
- College of Optical Sciences, University of Arizona, 1630 E. University Blvd., Tucson, Arizona, 85721,
USA
- Biomedical Engineering, University of Arizona, 1657 E Helen Street, Tucson, Arizona 85721,
USA
| | - Michael R. Descour
- College of Optical Sciences, University of Arizona, 1630 E. University Blvd., Tucson, Arizona, 85721,
USA
| | - Brenda K. Baggett
- Biomedical Engineering, University of Arizona, 1657 E Helen Street, Tucson, Arizona 85721,
USA
| | - Tomasz S. Tkaczyk
- Department of Bioengineering, Rice University, MS 142, 6100 Main St., Houston, Texas, 77005,
USA
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Current and Future Trends in Medical Imaging and Image Analysis. Med Image Anal 2011. [DOI: 10.1002/9780470918548.ch14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Kang JU, Han JH, Liu X, Zhang K, Song CG, Gehlbach P. Endoscopic Functional Fourier Domain Common Path Optical Coherence Tomography for Microsurgery. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS : A PUBLICATION OF THE IEEE LASERS AND ELECTRO-OPTICS SOCIETY 2010; 16:781-792. [PMID: 22899880 PMCID: PMC3418670 DOI: 10.1109/jstqe.2009.2031597] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A single-arm interferometer based optical coherence tomography (OCT) system known as common-path OCT (CPOCT) is rapidly progressing towards practical application. Due in part to the simplicity and robustness of its design, Fourier Domain CPOCT (FD-CP-OCT) offers advantages in many endoscopic sensing and imaging applications. FD-CP-OCT uses simple, interchangeable fiber optic probes that are easily integrated into small and delicate surgical tools. The system is capable of providing not only high resolution imaging but also optical sensing. Here, we report progress towards practical application of FD-CP-OCT in the setting of delicate microsurgical procedures such as intraocular retinal surgery. To meet the challenges presented by the microsurgical requirements of these procedures, we have developed and initiated the validation of applicable fiber optic probes. By integrating these probes into our developing imaging system, we have obtained high resolution OCT images and have also completed a demonstration of their potential sensing capabilities. Specifically, we utilize multiple SLEDs to demonstrate sub 3-micron axial resolution in water; we propose a technique to quantitatively evaluate the spatial distribution of oxygen saturation levels in tissue; and we present evidence supportive of the technology's surface sensing and tool guidance potential by demonstrating topological and motion compensation capabilities.
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Affiliation(s)
- Jin U Kang
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD 21218 USA (phone: 410-516-8186; fax: 410-516-5566; )
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45
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Qingli Li, Yiting Wang, Jingfa Zhang, Guotong Xu, Yongqi Xue. Quantitative Analysis of Protective Effect of Erythropoietin on Diabetic Retinal Cells Using Molecular Hyperspectral Imaging Technology. IEEE Trans Biomed Eng 2010; 57:1699-1706. [DOI: 10.1109/tbme.2010.2041663] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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46
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Kang JU, Han JH, Liu X, Zhang K. Common-Path Optical Coherence Tomography for Biomedical Imaging and Sensing. ACTA ACUST UNITED AC 2010; 14:1-13. [PMID: 20657808 DOI: 10.3807/josk.2010.14.1.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This paper describes a development of a fiber optic common-path optical coherence tomography (OCT) based imaging and guided system that possess ability to reliably identify optically transparent targets that are on the micron scale; ability to maintain a precise and safe position from the target; ability to provide spectroscopic imaging; ability to imaging biological target in 3-D. The system is based on a high resolution fiber optic Common-Path OCT (CP-OCT) that can be integrated into various mini-probes and tools. The system is capable of obtaining >70K A-scan per second with a resolution better than 3 μm. We have demonstrated that the system is capable of one-dimensional real-time depth tracking, tool motion limiting and motion compensation, oxygen-saturation level imaging, and high resolution 3-D images for various biomedical applications.
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Affiliation(s)
- Jin U Kang
- Department of Electrical and Computer Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA
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Ankamwar B, Lai TC, Huang JH, Liu RS, Hsiao M, Chen CH, Hwu YK. Biocompatibility of Fe(3)O(4) nanoparticles evaluated by in vitro cytotoxicity assays using normal, glia and breast cancer cells. NANOTECHNOLOGY 2010; 21:75102. [PMID: 20090199 DOI: 10.1088/0957-4484/21/7/075102] [Citation(s) in RCA: 153] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
In order to reveal the biocompatibility of Fe(3)O(4) nanoparticles and bipolar surfactant tetramethylammonium 11-aminoundecanoate cytotoxicity tests were performed as a function of concentration from low (0.1 microg ml(-1)) to higher concentration (100 microg ml(-1)) using various human glia, human breast cancer and normal cell lines. Cytotoxicity tests for human glia (D54MG, G9T, SF126, U87, U251, U373), human breast cancer (MB157, SKBR3, T47D) and normal (H184B5F5/M10, WI-38, SVGp12) cell lines exhibited almost nontoxicity and reveal biocompatibility of Fe(3)O(4) nanoparticles in the concentration range of 0.1-10 microg ml(-1), while accountable cytotoxicity can be seen at 100 microg ml(-1). The results of our studies suggest that Fe(3)O(4) nanoparticles coated with bipolar surfactant tetramethylammonium 11-aminoundecanoate are biocompatible and promising for bio-applications such as drug delivery, magnetic resonance imaging and magnetic hyperthermia.
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Affiliation(s)
- B Ankamwar
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
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48
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Huang X, El-Sayed MA. Gold nanoparticles: Optical properties and implementations in cancer diagnosis and photothermal therapy. J Adv Res 2010. [DOI: 10.1016/j.jare.2010.02.002] [Citation(s) in RCA: 1295] [Impact Index Per Article: 92.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Ghosn B, van de Ven AL, Tam J, Gillenwater A, Sokolov KV, Richards-Kortum R, Roy K. Efficient mucosal delivery of optical contrast agents using imidazole-modified chitosan. JOURNAL OF BIOMEDICAL OPTICS 2010; 15:015003. [PMID: 20210443 PMCID: PMC2839797 DOI: 10.1117/1.3309739] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Revised: 12/01/2009] [Accepted: 12/08/2009] [Indexed: 05/24/2023]
Abstract
The clinical applicability of antibodies and plasmonic nanosensors as topically applied, molecule-specific optical diagnostic agents for noninvasive early detection of cancer and precancer is severely limited by our inability to efficiently deliver macromolecules and nanoparticles through mucosal tissues. We have developed an imidazole-functionalized conjugate of the polysaccharide chitosan (chitosan-IAA) to enhance topical delivery of contrast agents, ranging from small molecules and antibodies to gold nanoparticles up to 44 nm in average diameter. Contrast agent uptake and localization in freshly resected mucosal tissues was monitored using confocal microscopy. Chitosan-IAA was found to reversibly enhance mucosal permeability in a rapid, reproducible manner, facilitating transepithelial delivery of optical contrast agents. Permeation enhancement occurred through an active process, resulting in the delivery of contrast agents via a paracellular or a combined paracellular/transcellular route depending on size. Coadministration of epidermal growth factor receptor-targeted antibodies with chitosan-IAA facilitated specific labeling and discrimination between paired normal and malignant human oral biopsies. Together, these data suggest that chitosan-IAA is a promising topical permeation enhancer for mucosal delivery of optical contrast agents.
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Affiliation(s)
- Bilal Ghosn
- The University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas 78712, USA
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50
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Huang X, Neretina S, El-Sayed MA. Gold nanorods: from synthesis and properties to biological and biomedical applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2009; 21:4880-4910. [PMID: 25378252 DOI: 10.1002/adma.200802789] [Citation(s) in RCA: 1064] [Impact Index Per Article: 70.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2009] [Indexed: 05/18/2023]
Abstract
Noble metal nanoparticles are capable of confining resonant photons in such a manner as to induce coherent surface plasmon oscillation of their conduction band electrons, a phenomenon leading to two important properties. Firstly, the confinement of the photon to the nanoparticle's dimensions leads to a large increase in its electromagnetic field and consequently great enhancement of all the nanoparticle's radiative properties, such as absorption and scattering. Moreover, by confining the photon's wavelength to the nanoparticle's small dimensions, there exists enhanced imaging resolving powers, which extend well below the diffraction limit, a property of considerable importance in potential device applications. Secondly, the strongly absorbed light by the nanoparticles is followed by a rapid dephasing of the coherent electron motion in tandem with an equally rapid energy transfer to the lattice, a process integral to the technologically relevant photothermal properties of plasmonic nanoparticles. Of all the possible nanoparticle shapes, gold nanorods are especially intriguing as they offer strong plasmonic fields while exhibiting excellent tunability and biocompatibility. We begin this review of gold nanorods by summarizing their radiative and nonradiative properties. Their various synthetic methods are then outlined with an emphasis on the seed-mediated chemical growth. In particular, we describe nanorod spontaneous self-assembly, chemically driven assembly, and polymer-based alignment. The final section details current studies aimed at applications in the biological and biomedical fields.
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Affiliation(s)
- Xiaohua Huang
- Laser Dynamics Laboratory School of Chemistry and Biochemistry Georgia Institute of Technology, Atlanta, GA 30332 (USA)
- Emory-Georgia Tech Cancer Center for Nanotechnology Excellence Department of Biomedical Engineering Emory University and Georgia Institute of Technology Atlanta, GA 30332 (USA)
| | - Svetlana Neretina
- Laser Dynamics Laboratory School of Chemistry and Biochemistry Georgia Institute of Technology Atlanta, GA 30332 (USA)
- Department of Mechanical Engineering Temple University 1947 N. 12th St., Philadelphia, PA 19122 (USA)
| | - Mostafa A El-Sayed
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry Georgia Institute of Technology Atlanta, GA 30332 (USA)
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