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Montiel L, Spada F, Crisp A, Serdjukow S, Carell T, Frischmuth T. Divergent Synthesis of Ultrabright and Dendritic Xanthenes for Enhanced Click-Chemistry-Based Bioimaging. Chemistry 2023; 29:e202202633. [PMID: 36317813 PMCID: PMC10107433 DOI: 10.1002/chem.202202633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Indexed: 12/13/2022]
Abstract
Biorthogonal labelling with fluorescent small molecules is an indispensable tool for diagnostic and biomedical applications. In dye-based 5-ethynyl-2'-deoxyuridine (EdU) cell proliferation assays, augmentation of the fluorescent signal entails an overall enhancement in the sensitivity and quality of the method. To this end, a rapid, divergent synthetic procedure that provides ready-to-click pH-insensitive rhodamine dyes exhibiting outstanding brightness was established. Compared to the shortest available synthesis of related high quantum-yielding rhodamines, two fewer synthetic steps are required. In a head-to-head imaging comparison involving copper(I)-catalyzed azide alkyne cycloaddition reactions with in vitro administered EdU, our new 3,3-difluoroazetidine rhodamine azide outperformed the popular 5-TAMRA-azide, making it among the best available choices when it comes to fluorescent imaging of DNA. In a further exploration of the fluorescence properties of these dyes, a set of bis-MPA dendrons carrying multiple fluorescein or rhodamine units was prepared by branching click chemistry. Fluorescence self-quenching of fluorescein- and rhodamine-functionalized dendrons limited the suitability of the dyes as labels in EdU-based experiments but provided new insights into these effects.
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Affiliation(s)
- Luis Montiel
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany.,Department of Chemistry, Institut für Chemische Epigenetik München (ICEM), Ludwig-Maximilians-Universität München (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
| | - Fabio Spada
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany
| | - Antony Crisp
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany
| | - Sascha Serdjukow
- Baseclick GmbH, Floriansbogen 2-4, 82061, Neuried (Munich), Germany
| | - Thomas Carell
- Department of Chemistry, Institut für Chemische Epigenetik München (ICEM), Ludwig-Maximilians-Universität München (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
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Kaup R, Ten Hove JB, Bunschoten A, van Leeuwen FWB, Velders AH. Multicompartment dendrimicelles with binary, ternary and quaternary core composition. NANOSCALE 2021; 13:15422-15430. [PMID: 34505610 DOI: 10.1039/d1nr04556c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hierarchically built-up multicompartment nanoaggregate systems are of interest for, e.g., novel materials and medicine. Here we present a versatile strategy to generate and unambiguously characterize complex coacervate-core micelles by exploiting four different dendrimeric subcomponents as core-units. The resulting mesoscale structures have a hydrodynamic diameter of 50 nm and a core size of 33 nm, and host about thirty 6th generation polyamidoamine (PAMAM) dendrimers. We have used FRET (efficiency of ∼0.2) between fluorescein and rhodamine moieties immobilized on separate PAMAM dendrimers (G6-F and G6-R, respectively) to prove synchronous encapsulation in the micelle core. Tuning the proximity of the FRET pair molecules either by varying the G6-F : G6-R ratio, or by co-assembling non-functionalized dendrimer (G6-E) in the core, reveals the optimal FRET efficiency to occur at a minimum of 70% loading with G6-F and G6-R. Additional co-encapsulation of 6th generation gold dendrimer-encapsulated nanoparticles (G6-Au) in the micelle core shows a dramatic reduction of the FRET efficiency, which can be restored by chemical etching of the gold nanoparticles from within the micellar core with thiols, leaving the micelle itself intact. This study reveals the controlled co-assembly of up to four different types of subcomponents in one single micellar core and concomitantly shows the wide variety of structures that can be made with a well-defined basic set of subcomponents. It is straightforward to design related strategies, to incorporate inside one micellar core, e.g., even more than 4 different dendrimers, or other classes of (macro)molecules, with different functional groups, other FRET pairs or different encapsulated metal nanoparticles.
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Affiliation(s)
- Rebecca Kaup
- Laboratory of BioNanoTechnology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands.
| | - Jan Bart Ten Hove
- Laboratory of BioNanoTechnology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands.
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anton Bunschoten
- Laboratory of BioNanoTechnology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands.
| | - Fijs W B van Leeuwen
- Laboratory of BioNanoTechnology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands.
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Aldrik H Velders
- Laboratory of BioNanoTechnology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands.
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
- Instituto Regional de Investigacion Cientifica Aplicada (IRICA), Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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Murasova P, Kovarova A, Kasparova J, Brozkova I, Hamiot A, Pekarkova J, Dupuy B, Drbohlavova J, Bilkova Z, Korecka L. Direct culture-free electrochemical detection of cells in milk based on quantum dots-modified nanostructured dendrons. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Non-traditional intrinsic luminescence: inexplicable blue fluorescence observed for dendrimers, macromolecules and small molecular structures lacking traditional/conventional luminophores. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.09.004] [Citation(s) in RCA: 159] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Uygun M, Doganci E, Tasdelen MA, Gurek AG. One‐pot photoinduced synthesis of dansyl containing acrylamide hydrogels and their chemosensing properties. J Appl Polym Sci 2019. [DOI: 10.1002/app.47096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- M. Uygun
- Department of ChemistryGebze Technical University 41400 Kocaeli Turkey
| | - E. Doganci
- Department of Chemistry and Chemical Processing TechKocaeli University 41140 Kocaeli Turkey
| | - M. A. Tasdelen
- Faculty of Engineering, Department of Polymer EngineeringYalova University 77100 Yalova Turkey
| | - A. G. Gurek
- Department of ChemistryGebze Technical University 41400 Kocaeli Turkey
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Martín-Serrano Ortiz Á, Stenström P, Mesa Antunez P, Andrén OCJ, Torres MJ, Montañez MI, Malkoch M. Design of multivalent fluorescent dendritic probes for site-specific labeling of biomolecules. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ángela Martín-Serrano Ortiz
- Research Laboratory and Allergy Unit; IBIMA-Regional University Hospital of Malaga-UMA, Hospital Civil, Plaza del Hospital Civil; Malaga 29009 Spain
- BIONAND-Andalusian Centre for Nanomedicine and Biotechnology, Parque Tecnológico de Andalucía; Malaga 29590 Spain
| | - Patrik Stenström
- Department of Fibre and Polymer Technology, Teknikringen 56-58; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
| | - Pablo Mesa Antunez
- Department of Fibre and Polymer Technology, Teknikringen 56-58; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
| | - Oliver C. J. Andrén
- Department of Fibre and Polymer Technology, Teknikringen 56-58; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
| | - Maria J. Torres
- Research Laboratory and Allergy Unit; IBIMA-Regional University Hospital of Malaga-UMA, Hospital Civil, Plaza del Hospital Civil; Malaga 29009 Spain
- BIONAND-Andalusian Centre for Nanomedicine and Biotechnology, Parque Tecnológico de Andalucía; Malaga 29590 Spain
| | - Maria I. Montañez
- Research Laboratory and Allergy Unit; IBIMA-Regional University Hospital of Malaga-UMA, Hospital Civil, Plaza del Hospital Civil; Malaga 29009 Spain
- BIONAND-Andalusian Centre for Nanomedicine and Biotechnology, Parque Tecnológico de Andalucía; Malaga 29590 Spain
| | - Michael Malkoch
- Department of Fibre and Polymer Technology, Teknikringen 56-58; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
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Elgqvist J. Nanoparticles as Theranostic Vehicles in Experimental and Clinical Applications-Focus on Prostate and Breast Cancer. Int J Mol Sci 2017; 18:E1102. [PMID: 28531102 PMCID: PMC5455010 DOI: 10.3390/ijms18051102] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 05/13/2017] [Accepted: 05/15/2017] [Indexed: 12/27/2022] Open
Abstract
Prostate and breast cancer are the second most and most commonly diagnosed cancer in men and women worldwide, respectively. The American Cancer Society estimates that during 2016 in the USA around 430,000 individuals were diagnosed with one of these two types of cancers, and approximately 15% of them will die from the disease. In Europe, the rate of incidences and deaths are similar to those in the USA. Several different more or less successful diagnostic and therapeutic approaches have been developed and evaluated in order to tackle this issue and thereby decrease the death rates. By using nanoparticles as vehicles carrying both diagnostic and therapeutic molecular entities, individualized targeted theranostic nanomedicine has emerged as a promising option to increase the sensitivity and the specificity during diagnosis, as well as the likelihood of survival or prolonged survival after therapy. This article presents and discusses important and promising different kinds of nanoparticles, as well as imaging and therapy options, suitable for theranostic applications. The presentation of different nanoparticles and theranostic applications is quite general, but there is a special focus on prostate cancer. Some references and aspects regarding breast cancer are however also presented and discussed. Finally, the prostate cancer case is presented in more detail regarding diagnosis, staging, recurrence, metastases, and treatment options available today, followed by possible ways to move forward applying theranostics for both prostate and breast cancer based on promising experiments performed until today.
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Affiliation(s)
- Jörgen Elgqvist
- Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden.
- Department of Physics, University of Gothenburg, 412 96 Gothenburg, Sweden.
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Annenkov VV, Verkhozina ON, Shishlyannikova TA, Danilovtseva EN. Application of 4-chloro-7-nitrobenzo-2-oxa-1,3-diazole in analysis: Fluorescent dyes and unexpected reaction with tertiary amines. Anal Biochem 2015; 486:5-13. [DOI: 10.1016/j.ab.2015.06.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/28/2015] [Accepted: 06/16/2015] [Indexed: 11/29/2022]
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Manono J, Dougherty CA, Jones K, DeMuth J, Holl MMB, DiMaggio S. Generation 3 PAMAM dendrimer TAMRA conjugates containing precise dye/dendrimer ratios. MATERIALS TODAY (KIDLINGTON, ENGLAND) 2015; 4:86-92. [PMID: 26549978 PMCID: PMC4631223 DOI: 10.1016/j.mtcomm.2015.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The synthesis, isolation, and characterization of generation 3 poly(amidoamine) (G3 PAMAM) dendrimer containing precise ratios of 5-carboxytetramethylrhodamine succinimidyl ester (TAMRA) dye (n = 1-3) per polymer particle are reported. Stochastic conjugation of TAMRA dye to the dendrimer was followed by separation into precise dye-polymer ratios using rp-HPLC. The isolated materials were characterized by rp-UPLC, MALDI-TOF-MS, and 1H NMR spectroscopy, UV-vis, and fluorescence spectroscopies.
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Affiliation(s)
- Janet Manono
- Department of Chemistry, Xavier University of Louisiana, New Orleans LA 70125, USA
| | - Casey A. Dougherty
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kirsten Jones
- Department of Chemistry, Xavier University of Louisiana, New Orleans LA 70125, USA
| | - Joshua DeMuth
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Stassi DiMaggio
- Department of Chemistry, Xavier University of Louisiana, New Orleans LA 70125, USA
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Lee H, Sung D, Kim J, Kim BT, Wang T, An SSA, Seo SW, Yi DK. Silica nanoparticle-based dual imaging colloidal hybrids: cancer cell imaging and biodistribution. Int J Nanomedicine 2015; 10 Spec Iss:215-25. [PMID: 26357472 PMCID: PMC4559254 DOI: 10.2147/ijn.s88311] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
In this study, fluorescent dye-conjugated magnetic resonance (MR) imaging agents were investigated in T mode. Gadolinium-conjugated silica nanoparticles were successfully synthesized for both MR imaging and fluorescence diagnostics. Polyamine and polycarboxyl functional groups were modified chemically on the surface of the silica nanoparticles for efficient conjugation of gadolinium ions. The derived gadolinium-conjugated silica nanoparticles were investigated by zeta potential analysis, transmission electron microscopy, inductively coupled plasma mass spectrometry, and energy dispersive x-ray spectroscopy. MR equipment was used to investigate their use as contrast-enhancing agents in T1 mode under a 9.4 T magnetic field. In addition, we tracked the distribution of the gadolinium-conjugated nanoparticles in both lung cancer cells and organs in mice.
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Affiliation(s)
- Haisung Lee
- Molecular Diagnostics, In Vitro Diagnostics Unit, New Business Division, SK Telecom, Republic of Korea
| | - Dongkyung Sung
- Department of Life Sciences, Graduate School of Korea University, Seoul, Republic of Korea
| | - Jinhoon Kim
- Interdisciplinary Graduate Program of Biomedical Engineering, School of Medicine, Sungkyunkwan University, Samsung Medical Center, Seoul, Republic of Korea
| | - Byung-Tae Kim
- Interdisciplinary Graduate Program of Biomedical Engineering, School of Medicine, Sungkyunkwan University, Samsung Medical Center, Seoul, Republic of Korea
| | - Tuntun Wang
- Department of Chemistry, Myongji University, Seoul, Republic of Korea
| | - Seong Soo A An
- Department of Bionanotechnology, Gachon Medical Research Institute, Gachon University, Seongnam, Republic of Korea
| | - Soo-Won Seo
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
| | - Dong Kee Yi
- Department of Chemistry, Myongji University, Seoul, Republic of Korea
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11
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Hennig R, Veser A, Kirchhof S, Goepferich A. Branched Polymer-Drug Conjugates for Multivalent Blockade of Angiotensin II Receptors. Mol Pharm 2015; 12:3292-302. [PMID: 26252154 DOI: 10.1021/acs.molpharmaceut.5b00301] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The use of angiotensin receptor blockers (ARBs) for treatment of ocular diseases associated with neovascularizations, such as proliferative diabetic retinopathy, shows tremendous promise but is presently limited due to short intravitreal half-life. Conjugation of ARB molecules to branched polymers could vastly augment their therapeutic efficacy. EXP3174, a potent non-peptide ARB, was conjugated to branched poly(ethylene glycol) (PEG) and poly(amido amine) (PAMAM) dendrimers: 7.8 ligand molecules were tethered to each 40 kDa PEG molecule whereas 16.7 ligand molecules were linked to each PAMAM generation 5 dendrimer. The multivalent PEG and PAMAM conjugates blocked AT1R signaling with an IC50 of 224 and 36.3 nM, respectively. The 6-fold higher affinity of the multivalent ligand-conjugated PAMAM dendrimers was due to their unique microarchitecture and ability to suppress polymer-drug interactions. Remarkably, both polymer-drug conjugates exhibited no cytotoxicity, in stark contrast to plain PAMAM dendrimers. With sufficiently long vitreous half-lives, both synthesized polymer-ARB conjugates have the potential to pave a new path for the therapy of ocular diseases accompanied by retinal neovascularizations.
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Affiliation(s)
- Robert Hennig
- Department of Pharmaceutical Technology, University of Regensburg , Regensburg, Germany
| | - Anika Veser
- Department of Pharmaceutical Technology, University of Regensburg , Regensburg, Germany
| | - Susanne Kirchhof
- Department of Pharmaceutical Technology, University of Regensburg , Regensburg, Germany
| | - Achim Goepferich
- Department of Pharmaceutical Technology, University of Regensburg , Regensburg, Germany
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12
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Signal amplification strategies for DNA and protein detection based on polymeric nanocomposites and polymerization: A review. Anal Chim Acta 2015; 877:19-32. [DOI: 10.1016/j.aca.2015.01.034] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 01/16/2015] [Accepted: 01/20/2015] [Indexed: 11/23/2022]
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13
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Dougherty CA, Vaidyanathan S, Orr BG, Banaszak Holl MM. Fluorophore:dendrimer ratio impacts cellular uptake and intracellular fluorescence lifetime. Bioconjug Chem 2015; 26:304-15. [PMID: 25625297 DOI: 10.1021/bc5005735] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
G5-NH2-TAMRAn (n = 1-4, 5+, and 1.5(avg)) were prepared with n = 1-4 as a precise dye:dendrimer ratio, 5+ as a mixture of dendrimers with 5 or more dye per dendrimer, and 1.5(avg) as a Poisson distribution of dye:dendrimer ratios with a mean of 1.5 dye per dendrimer. The absorption intensity increased sublinearly with n whereas the fluorescence emission and lifetime decreased with an increasing number of dyes per dendrimer. Flow cytometry was employed to quantify uptake into HEK293A cells. Dendrimers with 2-4 dyes were found to have greater uptake than dendrimer with a single dye. Fluorescence lifetime imaging microscopy (FLIM) showed that the different dye:dendrimer ratio alone was sufficient to change the fluorescence lifetime of the material observed inside cells. We also observed that the lifetime of G5-NH2-TAMRA5+ increased when present in the cell as compared to solution. However, cells treated with G5-NH2-TAMRA1.5(avg) did not exhibit the high lifetime components present in G5-NH2-TAMRA1 and G5-NH2-TAMRA5+. In general, the effects of the dye:dendrimer ratio on fluorescence lifetime were of similar magnitude to environmentally induced lifetime shifts.
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Affiliation(s)
- Casey A Dougherty
- Department of Chemistry, ‡Department of Biomedical Engineering, and §Department of Physics, University of Michigan , Ann Arbor, Michigan 48109, United States
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Kaastrup K, Sikes HD. Investigation of dendrimers functionalized with eosin as macrophotoinitiators for polymerization-based signal amplification reactions. RSC Adv 2015. [DOI: 10.1039/c4ra14466j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Water-soluble macrophotoinitiators with up to 24 eosin substituents and one protein per dendrimer were assessed in interfacial binding assays.
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Affiliation(s)
- K. Kaastrup
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - H. D. Sikes
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
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van Dongen M, Dougherty CA, Banaszak Holl MM. Multivalent polymers for drug delivery and imaging: the challenges of conjugation. Biomacromolecules 2014; 15:3215-34. [PMID: 25120091 PMCID: PMC4157765 DOI: 10.1021/bm500921q] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/06/2014] [Indexed: 12/11/2022]
Abstract
Multivalent polymers offer a powerful opportunity to develop theranostic materials on the size scale of proteins that can provide targeting, imaging, and therapeutic functionality. Achieving this goal requires the presence of multiple targeting molecules, dyes, and/or drugs on the polymer scaffold. This critical review examines the synthetic, analytical, and functional challenges associated with the heterogeneity introduced by conjugation reactions as well as polymer scaffold design. First, approaches to making multivalent polymer conjugations are discussed followed by an analysis of materials that have shown particular promise biologically. Challenges in characterizing the mixed ligand distributions and the impact of these distributions on biological applications are then discussed. Where possible, molecular-level interpretations are provided for the structures that give rise to the functional ligand and molecular weight distributions present in the polymer scaffolds. Lastly, recent strategies employed for overcoming or minimizing the presence of ligand distributions are discussed. This review focuses on multivalent polymer scaffolds where average stoichiometry and/or the distribution of products have been characterized by at least one experimental technique. Key illustrative examples are provided for scaffolds that have been carried forward to in vitro and in vivo testing with significant biological results.
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Affiliation(s)
- Mallory
A. van Dongen
- Chemistry Department, University of Michigan, Ann Arbor, Michigan 48103, United States
| | - Casey A. Dougherty
- Chemistry Department, University of Michigan, Ann Arbor, Michigan 48103, United States
| | - Mark M. Banaszak Holl
- Chemistry Department, University of Michigan, Ann Arbor, Michigan 48103, United States
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16
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Dougherty CA, Furgal JC, van Dongen MA, Goodson T, Banaszak Holl MM, Manono J, DiMaggio S. Isolation and characterization of precise dye/dendrimer ratios. Chemistry 2014; 20:4638-45. [PMID: 24604830 DOI: 10.1002/chem.201304854] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 01/15/2014] [Indexed: 01/16/2023]
Abstract
Fluorescent dyes are commonly conjugated to nanomaterials for imaging applications using stochastic synthesis conditions that result in a Poisson distribution of dye/particle ratios and therefore a broad range of photophysical and biodistribution properties. We report the isolation and characterization of generation 5 poly(amidoamine) (G5 PAMAM) dendrimer samples containing 1, 2, 3, and 4 fluorescein (FC) or 6-carboxytetramethylrhodamine succinimidyl ester (TAMRA) dyes per polymer particle. For the fluorescein case, this was achieved by stochastically functionalizing dendrimer with a cyclooctyne "click" ligand, separation into sample containing precisely defined "click" ligand/particle ratios using reverse-phase high performance liquid chromatography (RP-HPLC), followed by reaction with excess azide-functionalized fluorescein dye. For the TAMRA samples, stochastically functionalized dendrimer was directly separated into precise dye/particle ratios using RP-HPLC. These materials were characterized using (1)H and (19)F NMR spectroscopy, RP-HPLC, UV/Vis and fluorescence spectroscopy, lifetime measurements, and MALDI.
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Affiliation(s)
- Casey A Dougherty
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109-1055 (USA)
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17
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Medel S, Bosch P, Sangermano M. Modification of UV-cured epoxy resins with fluorescent sensors through photopolymerization and click chemistry reactions and preparation of polarity-sensitive films. POLYM INT 2013. [DOI: 10.1002/pi.4603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sandra Medel
- Dipartimento di Scienza Applicata e Tecnologia (DISAT); Politecnico di Torino; C.so Duca degli Abruzzi, 24 I-10129 Torino Italy
- Departamento de Química Macromolecular Aplicada; Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC); C/ Juan de la Cierva, 3 E-28006 Madrid Spain
| | - Paula Bosch
- Departamento de Química Macromolecular Aplicada; Instituto de Ciencia y Tecnología de Polímeros (ICTP), Consejo Superior de Investigaciones Científicas (CSIC); C/ Juan de la Cierva, 3 E-28006 Madrid Spain
| | - Marco Sangermano
- Dipartimento di Scienza Applicata e Tecnologia (DISAT); Politecnico di Torino; C.so Duca degli Abruzzi, 24 I-10129 Torino Italy
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López-Andarias J, Guerra J, Castañeda G, Merino S, Ceña V, Sánchez-Verdú P. Development of Microwave-Assisted Reactions for PAMAM Dendrimer Synthesis. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101717] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lamy CM, Sallin O, Loussert C, Chatton JY. Sodium sensing in neurons with a dendrimer-based nanoprobe. ACS NANO 2012; 6:1176-1187. [PMID: 22288942 DOI: 10.1021/nn203822t] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Ion imaging is a powerful methodology to assess fundamental biological processes in live cells. The limited efficiency of some ion-sensing probes and their fast leakage from cells are important restrictions to this approach. In this study, we present a novel strategy based on the use of dendrimer nanoparticles to obtain better intracellular retention of fluorescent probes and perform prolonged fluorescence imaging of intracellular ion dynamics. A new sodium-sensitive nanoprobe was generated by encapsulating a sodium dye in a PAMAM dendrimer nanocontainer. This nanoprobe is very stable and has high sodium sensitivity and selectivity. When loaded in neurons in live brain tissue, it homogenously fills the entire cell volume, including small processes, and stays for long durations, with no detectable alterations of cell functional properties. We demonstrate the suitability of this new sodium nanosensor for monitoring physiological sodium responses such as those occurring during neuronal activity.
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Affiliation(s)
- Christophe M Lamy
- Department of Cell Biology and Morphology, University of Lausanne, Rue du Bugnon 9, CH-1005 Lausanne, Switzerland.
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Robb MJ, Connal LA, Lee BF, Lynd NA, Hawker CJ. Functional block copolymer nanoparticles: toward the next generation of delivery vehicles. Polym Chem 2012; 3:1618-1628. [PMID: 25484930 PMCID: PMC4257844 DOI: 10.1039/c2py20131c] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The self-assembly of functional block copolymers (BCPs) into dispersed nanoparticles is a powerful technique for the preparation of novel delivery vehicles with precise control of morphology and architecture. Well-defined BCPs containing an alkyne-functional, biodegradable polylactide (PLA) block were synthesized and conjugated with azide-functional coumarin dyes via copper catalyzed azide alkyne cycloaddition 'click' chemistry. Self-assembled nanoparticles with internal nanophase-separated morphologies could then be accessed by carefully controlling the composition of the BCPs and release of the covalently attached model payload was shown to occur under physiological conditions via the degradation of the PLA scaffold. These results demonstrate the potential of self-assembled nanoparticles as modular delivery vehicles with multiple functionalities, nanostructures, and compartmentalized internal morphology.
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Affiliation(s)
- Maxwell J. Robb
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Luke A. Connal
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Bongjae F. Lee
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Nathaniel A. Lynd
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
| | - Craig J. Hawker
- Department of Chemistry and Biochemistry, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
- King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia 31261
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Albertazzi L, Brondi M, Pavan GM, Sato SS, Signore G, Storti B, Ratto GM, Beltram F. Dendrimer-based fluorescent indicators: in vitro and in vivo applications. PLoS One 2011; 6:e28450. [PMID: 22163303 PMCID: PMC3233578 DOI: 10.1371/journal.pone.0028450] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Accepted: 11/08/2011] [Indexed: 01/31/2023] Open
Abstract
Background The development of fluorescent proteins and synthetic molecules whose fluorescence properties are controlled by the environment makes it possible to monitor physiological and pathological events in living systems with minimal perturbation. A large number of small organic dyes are available and routinely used to measure biologically relevant parameters. Unfortunately their application is hindered by a number of limitations stemming from the use of these small molecules in the biological environment. Principal Findings We present a novel dendrimer-based architecture leading to multifunctional sensing elements that can overcome many of these problems. Applications in vitro, in living cells and in vivo are reported. In particular, we image for the first time extracellular pH in the brain in a mouse epilepsy model. Conclusion We believe that the proposed architecture can represent a useful and novel tool in fluorescence imaging that can be widely applied in conjunction with a broad range of sensing dyes and experimental setups.
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Affiliation(s)
- Lorenzo Albertazzi
- Laboratorio NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Pisa, Italy.
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Wan TC, Tosh DK, Du L, Gizewski ET, Jacobson KA, Auchampach JA. Polyamidoamine (PAMAM) dendrimer conjugate specifically activates the A3 adenosine receptor to improve post-ischemic/reperfusion function in isolated mouse hearts. BMC Pharmacol 2011; 11:11. [PMID: 22039965 PMCID: PMC3247180 DOI: 10.1186/1471-2210-11-11] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Accepted: 10/31/2011] [Indexed: 02/07/2023] Open
Abstract
Background When stimulated by small molecular agonists, the A3 adenosine receptor (AR) mediates cardioprotective effects without inducing detrimental hemodynamic side effects. We have examined pharmacologically the protective properties of a multivalent dendrimeric conjugate of a nucleoside as a selective multivalent agonist for the mouse A3AR. Results A PAMAM dendrimer fully substituted by click chemistry on its peripheral groups with 64 moieties of a nucleoside agonist was shown to be potent and selective in binding to the mouse A3AR and effective in cardioprotection in an isolated mouse heart model of ischemia/reperfusion (I/R) injury. This conjugate MRS5246 and a structurally related model compound MRS5233 displayed binding Ki values of 0.04 and 3.94 nM, respectively, and were potent in in vitro functional assays to inhibit cAMP production. A methanocarba (bicyclo[3.1.0]hexane) ring system in place of ribose maintained a North conformation that is preferred at the A3AR. These analogues also contained a triazole linker along with 5'-N-methyl-carboxamido and 2-alkynyl substitution, previously shown to be associated with species-independent A3AR selectivity. Both MRS5233 and MRS5246 (1 and 10 nM) were effective at increasing functional recovery of isolated mouse hearts after 20 min ischemia followed by 45 min reperfusion. A statistically significant greater improvement in the left ventricular developed pressure (LVDP) by MRS5246 compared to MRS5233 occurred when the hearts were observed throughout reperfusion. Unliganded PAMAM dendrimer alone did not have any effect on functional recovery of isolated perfused mouse hearts. 10 nM MRS5246 did not improve functional recovery after I/R in hearts from A3AR gene "knock-out" (A3KO) mice compared to control, indicating the effects of MRS5246 were A3AR-specific. Conclusions Covalent conjugation to a versatile drug carrier enhanced the functional potency and selectivity at the mouse A3AR and maintained the cardioprotective properties. Thus, this large molecular weight conjugate is not prevented from extravasation through the coronary microvasculature.
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Affiliation(s)
- Tina C Wan
- Department of Pharmacology/Toxicology and the Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
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Chao HY, Su BC, Li CL, Lam CK, Feng XL. Mono-, di-, and tri-nuclear gold(I) complexes with dansyl moiety: Synthesis, characterization, and photophysical properties. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2011.05.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Amir RJ, Albertazzi L, Willis J, Khan A, Kang T, Hawker CJ. Multifunctional trackable dendritic scaffolds and delivery agents. Angew Chem Int Ed Engl 2011; 50:3425-9. [PMID: 21391296 PMCID: PMC3491073 DOI: 10.1002/anie.201007427] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 01/19/2011] [Indexed: 01/05/2023]
Affiliation(s)
- Roey J. Amir
- Materials Research Laboratory, University of California Santa Barbara, Santa Barbara, CA 93106-5121, USA, Fax: (+1-805) 893-8797
| | - Lorenzo Albertazzi
- Materials Research Laboratory, University of California Santa Barbara, Santa Barbara, CA 93106-5121, USA, Fax: (+1-805) 893-8797. NEST, Scuola Normale Superiore and CNR-INFM, and IIT@NEST, Center for Nanotechnology Innovation, Piazza San Silvestro 12, 56126 Pisa, Italy
| | - Jenny Willis
- Materials Research Laboratory, University of California Santa Barbara, Santa Barbara, CA 93106-5121, USA, Fax: (+1-805) 893-8797
| | - Anzar Khan
- Department of Materials, Institute of Polymers, ETH-Zurich, Wolfgang-Pauli-Strasse 10, HCl H-520, 8093 Zurich Switzerland
| | - Taegon Kang
- Materials Research Laboratory, University of California Santa Barbara, Santa Barbara, CA 93106-5121, USA, Fax: (+1-805) 893-8797
| | - Craig J. Hawker
- Materials Research Laboratory, University of California Santa Barbara, Santa Barbara, CA 93106-5121, USA, Fax: (+1-805) 893-8797
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Amir RJ, Albertazzi L, Willis J, Khan A, Kang T, Hawker CJ. Multifunctional Trackable Dendritic Scaffolds and Delivery Agents. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007427] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ruggi A, Beekman C, Wasserberg D, Subramaniam V, Reinhoudt DN, van Leeuwen FWB, Velders AH. Dendritic Ruthenium(II)‐Based Dyes Tuneable for Diagnostic or Therapeutic Applications. Chemistry 2010; 17:464-7. [DOI: 10.1002/chem.201002514] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Indexed: 02/02/2023]
Affiliation(s)
- Albert Ruggi
- Supramolecular Chemistry and Technology, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands), Fax: (+31) 534894645
| | - Chantal Beekman
- Division of Diagnostic Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX, Amsterdam (The Netherlands)
| | - Dorothee Wasserberg
- Nanobiophysics, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands)
| | - Vinod Subramaniam
- Nanobiophysics, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands)
| | - David N. Reinhoudt
- Supramolecular Chemistry and Technology, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands), Fax: (+31) 534894645
| | - Fijs W. B. van Leeuwen
- Division of Diagnostic Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX, Amsterdam (The Netherlands)
| | - Aldrik H. Velders
- Supramolecular Chemistry and Technology, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE, Enschede (The Netherlands), Fax: (+31) 534894645
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Annenkov V, Danilovtseva E, Zelinskiy S, Basharina T, Safonova T, Korneva E, Likhoshway Y, Grachev M. Novel fluorescent dyes based on oligopropylamines for the in vivo staining of eukaryotic unicellular algae. Anal Biochem 2010; 407:44-51. [DOI: 10.1016/j.ab.2010.07.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Revised: 07/29/2010] [Accepted: 07/30/2010] [Indexed: 11/29/2022]
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Fischer-Durand N, Salmain M, Rudolf B, Dai L, Jugé L, Guérineau V, Laprévote O, Vessières A, Jaouen G. Site-specific conjugation of metal carbonyl dendrimer to antibody and its use as detection reagent in immunoassay. Anal Biochem 2010; 407:211-9. [PMID: 20804720 DOI: 10.1016/j.ab.2010.08.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 07/28/2010] [Accepted: 08/20/2010] [Indexed: 11/30/2022]
Abstract
We describe here the conjugation of polyclonal goat anti-rabbit antibody to generation 4 polyamidoamine (G4-PAMAM) dendrimers carrying (i) (η(5)-cyclopentadienyl) iron dicarbonyl succinimidato complexes as infrared (IR) probes, (ii) nitroaniline entities as nuclear magnetic resonance (NMR) probes, (iii) acetamide groups for surface neutralization, and (iv) hydrazide-terminated spacer arms for the reaction with aldehyde. To preserve a high binding affinity, the conjugation was performed on the carbohydrate moieties located on the Fc fragment. The resulting conjugates were characterized by Fourier transform-IR, ultraviolet (UV), and high-mass matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. On the basis of relative concentration ratios of IR probes and antibody, an average labeling of 30 IR probes per antibody was reached (i.e., more than twice the value obtained with our previous strategy that generated no spacer arm). Immunoassays revealed that the antibody-dendrimer conjugates retained 55.1% of immunoreactivity on average with respect to underivatized antibody. Finally, the conjugates were used to quantify their antigen by solid-phase carbonyl metallo immunoassay (CMIA). Results showed a significant enhancement of the IR signal, demonstrating the efficiency of the new conjugation strategy and the potential of the new antibody-dendrimer conjugates as universal immunoanalytical reagents.
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Affiliation(s)
- Nathalie Fischer-Durand
- Chimie ParisTech (Ecole Nationale Supérieure de Chimie de Paris), Laboratoire Charles Friedel, CNRS UMR 7223, 75005 Paris, France
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Chui CH, Wang Q, Chow WC, Yuen MCW, Wong KL, Kwok WM, Cheng GYM, Wong RSM, Tong SW, Chan KW, Lau FY, Lai PBS, Lam KH, Fabbri E, Tao XM, Gambari R, Wong WY. 5-(Dimethylamino)-N-(4-ethynylphenyl)-1-naphthalenesulfonamide as a novel bifunctional antitumor agent and two-photon induced bio-imaging probe. Chem Commun (Camb) 2010; 46:3538-40. [DOI: 10.1039/b926908h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Descalzo AB, Zhu S, Fischer T, Rurack K. Optimization of the Coupling of Target Recognition and Signal Generation. ADVANCED FLUORESCENCE REPORTERS IN CHEMISTRY AND BIOLOGY II 2010. [DOI: 10.1007/978-3-642-04701-5_2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Luminescence Amplification Strategies Integrated with Microparticle and Nanoparticle Platforms. LUMINESCENCE APPLIED IN SENSOR SCIENCE 2010; 300:51-91. [DOI: 10.1007/128_2010_99] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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Yellepeddi VK, Kumar A, Palakurthi S. Surface modified poly(amido)amine dendrimers as diverse nanomolecules for biomedical applications. Expert Opin Drug Deliv 2009; 6:835-50. [DOI: 10.1517/17425240903061251] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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