1
|
Al-Mualem ZA, Chen X, Shafieenezhad A, Senning EN, Baiz CR. Binding-induced lipid domains: Peptide-membrane interactions with PIP 2 and PS. Biophys J 2024; 123:2001-2011. [PMID: 38142298 PMCID: PMC11309973 DOI: 10.1016/j.bpj.2023.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/08/2023] [Accepted: 12/20/2023] [Indexed: 12/25/2023] Open
Abstract
Cell signaling is an important process involving complex interactions between lipids and proteins. The myristoylated alanine-rich C-kinase substrate (MARCKS) has been established as a key signaling regulator, serving a range of biological roles. Its effector domain (ED), which anchors the protein to the plasma membrane, induces domain formation in membranes containing phosphatidylinositol 4,5-bisphosphate (PIP2) and phosphatidylserine (PS). The mechanisms governing the MARCKS-ED binding to membranes remain elusive. Here, we investigate the composition-dependent affinity and MARCKS-ED-binding-induced changes in interfacial environments using two-dimensional infrared spectroscopy and fluorescence anisotropy. Both negatively charged lipids facilitate the MARCKS-ED binding to lipid vesicles. Although the hydrogen-bonding structure at the lipid-water interface remains comparable across vesicles with varied lipid compositions, the dynamics of interfacial water show divergent patterns due to specific interactions between lipids and peptides. Our findings also reveal that PIP2 becomes sequestered by bound peptides, while the distribution of PS exhibits no discernible change upon peptide binding. Interestingly, PIP2 and PS become colocalized into domains both in the presence and absence of MARCKS-ED. More broadly, this work offers molecular insights into the effects of membrane composition on binding.
Collapse
Affiliation(s)
| | - Xiaobing Chen
- Department of Chemistry, The University of Texas at Austin, Austin, Texas
| | - Azam Shafieenezhad
- Department of Neuroscience, The University of Texas at Austin, Austin, Texas
| | - Eric N Senning
- Department of Neuroscience, The University of Texas at Austin, Austin, Texas.
| | - Carlos R Baiz
- Department of Chemistry, The University of Texas at Austin, Austin, Texas.
| |
Collapse
|
2
|
Gamage RS, Smith BD. Fluorescence Imaging Using Deep-Red Indocyanine Blue, a Complementary Partner for Near-Infrared Indocyanine Green. CHEMICAL & BIOMEDICAL IMAGING 2024; 2:384-397. [PMID: 38817322 PMCID: PMC11134606 DOI: 10.1021/cbmi.4c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 06/01/2024]
Abstract
Indocyanine Blue (ICB) is the deep-red pentamethine analogue of the widely used clinical near-infrared heptamethine cyanine dye Indocyanine Green (ICG). The two fluorophores have the same number of functional groups and molecular charge and vary only by a single vinylene unit in the polymethine chain, which produces a predictable difference in spectral and physicochemical properties. We find that the two dyes can be employed as a complementary pair in diverse types of fundamental and applied fluorescence imaging experiments. A fundamental fluorescence spectroscopy study used ICB and ICG to test a recently proposed Förster Resonance Energy Transfer (FRET) mechanism for enhanced fluorescence brightness in heavy water (D2O). The results support two important corollaries of the proposal: (a) the strategy of using heavy water to increase the brightness of fluorescent dyes for microscopy or imaging is most effective when the dye emission band is above 650 nm, and (b) the magnitude of the heavy water florescence enhancement effect for near-infrared ICG is substantially diminished when the ICG surface is dehydrated due to binding by albumin protein. Two applied fluorescence imaging studies demonstrated how deep-red ICB can be combined with a near-infrared fluorophore for paired agent imaging in the same living subject. One study used dual-channel mouse imaging to visualize increased blood flow in a model of inflamed tissue, and a second mouse tumor imaging study simultaneously visualized the vasculature and cancerous tissue in separate fluorescence channels. The results suggest that ICB and ICG can be incorporated within multicolor fluorescence imaging methods for perfusion imaging and hemodynamic characterization of a wide range of diseases.
Collapse
Affiliation(s)
- Rananjaya S Gamage
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| |
Collapse
|
3
|
Elter JK, Liščáková V, Moravec O, Vragović M, Filipová M, Štěpánek P, Šácha P, Hrubý M. Solid-Phase Synthesis as a Tool to Create Exactly Defined, Branched Polymer Vectors for Cell Membrane Targeting. Macromolecules 2024; 57:1050-1071. [PMID: 38370914 PMCID: PMC10867888 DOI: 10.1021/acs.macromol.3c02600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 01/09/2024] [Indexed: 02/20/2024]
Abstract
Modern drug formulations often require, besides the active drug molecule, auxiliaries to enhance their pharmacological properties. Tailor-made, biocompatible polymers covalently connected to the drug molecule can fulfill this function by increasing its solubility, reducing its toxicity, and guiding it to a specific target. If targeting membrane-bound proteins, localization of the drug close to the cell membrane and its target is beneficial to increase drug efficiency and residence time. In this study, we present the synthesis of highly defined, branched polymeric structures with membrane-binding properties. One to three hydrophilic poly(ethylene oxide) or poly(2-ethyloxazoline) side chains were connected via a peptoid backbone using a two-step iterative protocol for solid-phase peptoid synthesis. Additional groups, e.g., a hydrophobic anchor for membrane attachment, were introduced. Due to the nature of solid-phase synthesis, the number and order of the side chains and additional units can be precisely defined. The method proved to be versatile for the generation of multifunctional, branched polymeric structures of molecular weights up to approximately 7000 g mol-1. The behavior of all compounds towards biological membranes and cells was investigated using liposomes as cell membrane models, HEK293 and U251-MG cell lines, and red blood cells, thereby demonstrating their potential value as drug auxiliaries with cell membrane affinity.
Collapse
Affiliation(s)
- Johanna K. Elter
- Institute
of Macromolecular Chemistry, CAS Heyrovského
nám. 2, 162 06, Praha 6, Czech Republic
| | - Veronika Liščáková
- Institute
of Organic Chemistry and Biochemistry, CAS Flemingovo nám. 2, 166 10, Praha 6, Czech Republic
- First
Faculty of Medicine, Charles University
Kateřinská, 1660/32, 121 08, Praha 2, Czech Republic
| | - Oliver Moravec
- Institute
of Macromolecular Chemistry, CAS Heyrovského
nám. 2, 162 06, Praha 6, Czech Republic
| | - Martina Vragović
- Institute
of Macromolecular Chemistry, CAS Heyrovského
nám. 2, 162 06, Praha 6, Czech Republic
| | - Marcela Filipová
- Institute
of Macromolecular Chemistry, CAS Heyrovského
nám. 2, 162 06, Praha 6, Czech Republic
| | - Petr Štěpánek
- Institute
of Macromolecular Chemistry, CAS Heyrovského
nám. 2, 162 06, Praha 6, Czech Republic
| | - Pavel Šácha
- Institute
of Organic Chemistry and Biochemistry, CAS Flemingovo nám. 2, 166 10, Praha 6, Czech Republic
| | - Martin Hrubý
- Institute
of Macromolecular Chemistry, CAS Heyrovského
nám. 2, 162 06, Praha 6, Czech Republic
| |
Collapse
|
4
|
Creyer MN, Retout M, Jin Z, Yim W, Jokerst JV. Ligation of Gold Nanoparticles with Self-Assembling, Coiled-Coil Peptides. J Phys Chem B 2023; 127:8009-8018. [PMID: 37683185 DOI: 10.1021/acs.jpcb.3c02099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
The surface of gold nanoparticles (AuNPs) can be conjugated with a wide range of highly functional biomolecules. A common pitfall when utilizing AuNPs is their tendency to aggregate, especially when their surface is functionalized with ligands of low molecular weight (no steric repulsion) or ligands of neutral charge (no electrostatic repulsion). For biomedical applications, AuNPs that are colloidally stable are desirable because they have a high surface area and thus reactivity, resist sedimentation, and exhibit uniform optical properties. Here, we engineer the surface of AuNPs so that they remain stable when decorated with coiled-coil (CC) peptides while preserving the native polypeptide properties. We achieve this by using a neutral, mixed ligand layer composed of lipoic acid poly(ethylene glycol) and lipoic acid poly(ethylene glycol) maleimide to attach the CCs. Tuning the surface fraction of each component within the mixed ligand layer also allowed us to control the degree of AuNP labeling with CCs. We demonstrate the dynamic surface properties of these CC-AuNPs by performing a place-exchange reaction and their utility by designing an energy-transfer-based caspase-3 sensor. Overall, this study optimizes the surface chemistry of AuNPs to quantitatively present functional biomolecules while maintaining colloid stability.
Collapse
Affiliation(s)
- Matthew N Creyer
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Maurice Retout
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Zhicheng Jin
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Wonjun Yim
- Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jesse V Jokerst
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Department of Radiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| |
Collapse
|
5
|
Excess Absorbance as a Novel Approach for Studying the Self-Aggregation of Vital Dyes in Liquid Solution. Int J Mol Sci 2023; 24:ijms24021645. [PMID: 36675158 PMCID: PMC9863645 DOI: 10.3390/ijms24021645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
In the present paper, a simple method for analyzing the self-aggregation of dyes in a solution by a UV-visible absorption measurements is proposed. The concept of excess absorbance is introduced to determine an equation whose coefficients determine the parameters of the aggregation equilibrium. The computational peculiarities of the model are first discussed theoretically and then applied to sodium fluorescein in polar protic and aprotic solvents, as well as in aqueous solutions of methylene blue, which is a cationic dye. Although the experimental responses are very different, the model appears to work equally well in both cases. The model reveals that the trimer is the most likely configuration in both solvents. Furthermore, aggregation is strongly favored for the protic solvent. Interestingly, the model establishes that in aqueous solutions of methylene blue, the tetramer is the predominant form, which has long been assumed and recently demonstrated with sophisticated computational techniques.
Collapse
|
6
|
Fernandes R, Chowdhary S, Mikula N, Saleh N, Kanevche K, Berlepsch HV, Hosogi N, Heberle J, Weber M, Böttcher C, Koksch B. Cyanine Dye Coupling Mediates Self-assembly of a pH Sensitive Peptide into Novel 3D Architectures. Angew Chem Int Ed Engl 2022; 61:e202208647. [PMID: 36161448 PMCID: PMC9828782 DOI: 10.1002/anie.202208647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Indexed: 01/12/2023]
Abstract
Synthetic multichromophore systems are of great importance in artificial light harvesting devices, organic optoelectronics, tumor imaging and therapy. Here, we introduce a promising strategy for the construction of self-assembled peptide templated dye stacks based on coupling of a de novo designed pH sensitive peptide with a cyanine dye Cy5 at its N-terminus. Microscopic techniques, in particular cryogenic TEM (cryo-TEM) and cryo-electron tomography technique (cryo-ET), reveal two types of highly ordered three-dimensional assembly structures on the micrometer scale. Unbranched compact layered rods are observed at pH 7.4 and two-dimensional membrane-like assemblies at pH 3.4, both species displaying spectral features of H-aggregates. Molecular dynamics simulations reveal that the coupling of Cy5 moieties promotes the formation of both ultrastructures, whereas the protonation states of acidic and basic amino acid side chains dictates their ultimate three-dimensional organization.
Collapse
Affiliation(s)
- Rita Fernandes
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
| | - Suvrat Chowdhary
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
| | - Natalia Mikula
- Mathematics for Life and Materials SciencesZuse Institute BerlinTakustraße 714195BerlinGermany
| | - Noureldin Saleh
- Mathematics for Life and Materials SciencesZuse Institute BerlinTakustraße 714195BerlinGermany
| | - Katerina Kanevche
- Department of PhysicsExperimental Molecular BiophysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Hans v. Berlepsch
- Research Center for Electron Microscopy and Core Facility BioSupraMolFreie Universität BerlinFabeckstraße 36a14195BerlinGermany
| | | | - Joachim Heberle
- Department of PhysicsExperimental Molecular BiophysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Marcus Weber
- Mathematics for Life and Materials SciencesZuse Institute BerlinTakustraße 714195BerlinGermany
| | - Christoph Böttcher
- Research Center for Electron Microscopy and Core Facility BioSupraMolFreie Universität BerlinFabeckstraße 36a14195BerlinGermany
| | - Beate Koksch
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2014195BerlinGermany
| |
Collapse
|
7
|
Morla-Folch J, Vargas-Nadal G, Fuentes E, Illa-Tuset S, Köber M, Sissa C, Pujals S, Painelli A, Veciana J, Faraudo J, Belfield KD, Albertazzi L, Ventosa N. Ultrabright Föster Resonance Energy Transfer Nanovesicles: The Role of Dye Diffusion. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2022; 34:8517-8527. [PMID: 36248229 PMCID: PMC9558306 DOI: 10.1021/acs.chemmater.2c00384] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of contrast agents based on fluorescent nanoparticles with high brightness and stability is a key factor to improve the resolution and signal-to-noise ratio of current fluorescence imaging techniques. However, the design of bright fluorescent nanoparticles remains challenging due to fluorescence self-quenching at high concentrations. Developing bright nanoparticles showing FRET emission adds several advantages to the system, including an amplified Stokes shift, the possibility of ratiometric measurements, and of verifying the nanoparticle stability. Herein, we have developed Förster resonance energy transfer (FRET)-based nanovesicles at different dye loadings and investigated them through complementary experimental techniques, including conventional fluorescence spectroscopy and super-resolution microscopy supported by molecular dynamics calculations. We show that the optical properties can be modulated by dye loading at the nanoscopic level due to the dye's molecular diffusion in fluid-like membranes. This work shows the first proof of a FRET pair dye's dynamism in liquid-like membranes, resulting in optimized nanoprobes that are 120-fold brighter than QDot 605 and exhibit >80% FRET efficiency with vesicle-to-vesicle variations that are mostly below 10%.
Collapse
Affiliation(s)
- Judit Morla-Folch
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Guillem Vargas-Nadal
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Edgar Fuentes
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering
of Catalonia (IBEC) C\ Baldiri Reixac 15-21, Helix Building, Barcelona, 08028, Catalonia, Spain
| | - Sílvia Illa-Tuset
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
| | - Mariana Köber
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Cristina Sissa
- Dipartimento
di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy
| | - Silvia Pujals
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering
of Catalonia (IBEC) C\ Baldiri Reixac 15-21, Helix Building, Barcelona, 08028, Catalonia, Spain
| | - Anna Painelli
- Dipartimento
di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy
| | - Jaume Veciana
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| | - Jordi Faraudo
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
| | - Kevin D. Belfield
- Department
of Chemistry and Environmental Science, College of Science and Liberal
Arts, New Jersey Institute of Technology
(NJIT) 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Lorenzo Albertazzi
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering
of Catalonia (IBEC) C\ Baldiri Reixac 15-21, Helix Building, Barcelona, 08028, Catalonia, Spain
- Molecular
Biosensing for Medical Diagnostics Group, Biomedical Engineering, Technology Eindhoven University of Technology (TUE) Eindhoven, 5612 AZ, The Netherlands
| | - Nora Ventosa
- Institut
de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, Catalonia 08193, Spain
- CIBER
de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN)Instituto de Salud Carlos III. Bellaterra, 08193, Spain
| |
Collapse
|
8
|
Das Saha N, Pradhan S, Sasmal R, Sarkar A, Berač CM, Kölsch JC, Pahwa M, Show S, Rozenholc Y, Topçu Z, Alessandrini V, Guibourdenche J, Tsatsaris V, Gagey-Eilstein N, Agasti SS. Cucurbit[7]uril Macrocyclic Sensors for Optical Fingerprinting: Predicting Protein Structural Changes to Identifying Disease-Specific Amyloid Assemblies. J Am Chem Soc 2022; 144:14363-14379. [PMID: 35913703 DOI: 10.1021/jacs.2c05969] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In a three-dimensional (3D) representation, each protein molecule displays a specific pattern of chemical and topological features, which are altered during its misfolding and aggregation pathway. Generating a recognizable fingerprint from such features could provide an enticing approach not only to identify these biomolecules but also to gain clues regarding their folding state and the occurrence of pathologically lethal misfolded aggregates. We report here a universal strategy to generate a fluorescent fingerprint from biomolecules by employing the pan-selective molecular recognition feature of a cucurbit[7]uril (CB[7]) macrocyclic receptor. We implemented a direct sensing strategy by covalently tethering CB[7] with a library of fluorescent reporters. When CB[7] recognizes the chemical and geometrical features of a biomolecule, it brings the tethered fluorophore into the vicinity, concomitantly reporting the nature of its binding microenvironment through a change in their optical signature. The photophysical properties of the fluorophores allow a multitude of probing modes, while their structural features provide additional binding diversity, generating a distinct fluorescence fingerprint from the biomolecule. We first used this strategy to rapidly discriminate a diverse range of protein analytes. The macrocyclic sensor was then applied to probe conformational changes in the protein structure and identify the formation of oligomeric and fibrillar species from misfolded proteins. Notably, the sensor system allowed us to differentiate between different self-assembled forms of the disease-specific amyloid-β (Aβ) aggregates and segregated them from other generic amyloid structures with a 100% identification accuracy. Ultimately, this sensor system predicted clinically relevant changes by fingerprinting serum samples from a cohort of pregnant women.
Collapse
Affiliation(s)
- Nilanjana Das Saha
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India.,Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India
| | - Soumen Pradhan
- Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India
| | - Ranjan Sasmal
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India
| | - Aritra Sarkar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India
| | - Christian M Berač
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.,Graduate School of Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Jonas C Kölsch
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Meenakshi Pahwa
- Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India
| | - Sushanta Show
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India
| | - Yves Rozenholc
- UR 7537 BioSTM, Université Paris Cité, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Zeki Topçu
- UR 7537 BioSTM, Université Paris Cité, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Vivien Alessandrini
- INSERM UMR-S 1139, Université Paris Cité, 4 avenue de l'Observatoire, 75006 Paris, France.,Department of Obstetrics, Cochin Hospital, AP-HP, Université Paris Cité, FHU PREMA, 123 Bd Port-Royal, 75014 Paris, France
| | - Jean Guibourdenche
- INSERM UMR-S 1139, Université Paris Cité, 4 avenue de l'Observatoire, 75006 Paris, France.,Department of Obstetrics, Cochin Hospital, AP-HP, Université Paris Cité, FHU PREMA, 123 Bd Port-Royal, 75014 Paris, France
| | - Vassilis Tsatsaris
- INSERM UMR-S 1139, Université Paris Cité, 4 avenue de l'Observatoire, 75006 Paris, France.,Department of Obstetrics, Cochin Hospital, AP-HP, Université Paris Cité, FHU PREMA, 123 Bd Port-Royal, 75014 Paris, France
| | | | - Sarit S Agasti
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India.,Chemistry & Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, Karnataka 560064, India
| |
Collapse
|
9
|
Grazon C, Chern M, Lally P, Baer RC, Fan A, Lecommandoux S, Klapperich C, Dennis AM, Galagan JE, Grinstaff MW. The quantum dot vs. organic dye conundrum for ratiometric FRET-based biosensors: which one would you chose? Chem Sci 2022; 13:6715-6731. [PMID: 35756504 PMCID: PMC9172442 DOI: 10.1039/d1sc06921g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 05/04/2022] [Indexed: 11/21/2022] Open
Abstract
Förster resonance energy transfer (FRET) is a widely used and ideal transduction modality for fluorescent based biosensors as it offers high signal to noise with a visibly detectable signal. While intense efforts are ongoing to improve the limit of detection and dynamic range of biosensors based on biomolecule optimization, the selection of and relative location of the dye remains understudied. Herein, we describe a combined experimental and computational study to systematically compare the nature of the dye, i.e., organic fluorophore (Cy5 or Texas Red) vs. inorganic nanoparticle (QD), and the position of the FRET donor or acceptor on the biomolecular components. Using a recently discovered transcription factor (TF)-deoxyribonucleic acid (DNA) biosensor for progesterone, we examine four different biosensor configurations and report the quantum yield, lifetime, FRET efficiency, IC50, and limit of detection. Fitting the computational models to the empirical data identifies key molecular parameters driving sensor performance in each biosensor configuration. Finally, we provide a set of design parameters to enable one to select the fluorophore system for future intermolecular biosensors using FRET-based conformational regulation in in vitro assays and new diagnostic devices.
Collapse
Affiliation(s)
- Chloé Grazon
- Department of Chemistry, Boston University Boston MA 02215 USA .,University Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629 F-33600 Pessac France .,University Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 F-33400 Talence France
| | - Margaret Chern
- Division of Materials Science and Engineering, Boston University Boston MA 02215 USA
| | - Patrick Lally
- Department of Biomedical Engineering, Boston University Boston MA 02215 USA
| | - R. C. Baer
- Department of Microbiology, Boston UniversityBostonMA 02118USA,National Emerging Infectious Diseases Laboratories, Boston UniversityBostonMA 02118USA
| | - Andy Fan
- Department of Biomedical Engineering, Boston University Boston MA 02215 USA
| | | | | | - Allison M. Dennis
- Division of Materials Science and Engineering, Boston UniversityBostonMA 02215USA,Department of Biomedical Engineering, Boston UniversityBostonMA 02215USA
| | - James E. Galagan
- Department of Microbiology, Boston UniversityBostonMA 02118USA,Department of Biomedical Engineering, Boston UniversityBostonMA 02215USA,National Emerging Infectious Diseases Laboratories, Boston UniversityBostonMA 02118USA
| | - Mark W. Grinstaff
- Department of Chemistry, Boston UniversityBostonMA 02215USA,Division of Materials Science and Engineering, Boston UniversityBostonMA 02215USA,Department of Biomedical Engineering, Boston UniversityBostonMA 02215USA
| |
Collapse
|
10
|
Hasan MN, Bera A, Maji TK, Mukherjee D, Pan N, Karmakar D, Pal SK. Functionalized nano-MOF for NIR induced bacterial remediation: A combined spectroscopic and computational study. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
11
|
Babity S, Couture F, Campos EVR, Hedtrich S, Hagen R, Fehr D, Bonmarin M, Brambilla D. A Naked Eye-Invisible Ratiometric Fluorescent Microneedle Tattoo for Real-Time Monitoring of Inflammatory Skin Conditions. Adv Healthc Mater 2022; 11:e2102070. [PMID: 34921529 DOI: 10.1002/adhm.202102070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/13/2021] [Indexed: 01/05/2023]
Abstract
The field of portable healthcare monitoring devices has an urgent need for the development of real-time, noninvasive sensing and detection methods for various physiological analytes. Currently, transdermal sensing techniques are severely limited in scope (i.e., measurement of heart rate or sweat composition), or else tend to be invasive, often needing to be performed in a clinical setting. This study proposes a minimally invasive alternative strategy, consisting of using dissolving polymeric microneedles to deliver naked eye-invisible functional fluorescent ratiometric microneedle tattoos directly to the skin for real-time monitoring and quantification of physiological and pathological parameters. Reactive oxygen species are overexpressed in the skin in association with various pathological conditions. Here, one demonstrates for the first time the microneedle-based delivery to the skin of active fluorescent sensors in the form of an invisible, ratiometric microneedle tattoo capable of sensing reactive oxygen species in a reconstructed human-based skin disease model, as well as an in vivo model of UV-induced dermal inflammation. One also elaborates a universal ratiometric quantification concept coupled with a custom-built, multiwavelength portable fluorescence detection system. Fully realized, this approach presents an opportunity for the minimally invasive monitoring of a broad range of physiological parameters through the skin.
Collapse
Affiliation(s)
- Samuel Babity
- Faculté de Pharmacie Université de Montréal C.P. 6128, Succursale Centre‐ville, Montréal Québec H3C 3J7 Canada
| | - Frédéric Couture
- TransBIOTech 201 Monseigneur‐Bourget Lévis Québec G6V 6Z9 Canada
- Nutraceuticals and Functional Foods Institute (INAF) Université Laval, Québec Québec G1K 7P4 Canada
- Centre intégré de santé et de services sociaux de Chaudière‐Appalaches Lévis Québec G6E 3E2 Canada
| | - Estefânia V. R. Campos
- Faculty of Pharmaceutical Sciences University of British Columbia 2405 Wesbrook Mall Vancouver British Columbia V6T 1Z3 Canada
- Human and Natural Sciences Center Federal University of ABC Santo Andre SP 09210‐580 Brazil
| | - Sarah Hedtrich
- Faculty of Pharmaceutical Sciences University of British Columbia 2405 Wesbrook Mall Vancouver British Columbia V6T 1Z3 Canada
| | - Raphael Hagen
- School of Engineering Zurich University of Applied Sciences Technikumstrasse 9 Winterthur 8400 Switzerland
| | - Daniel Fehr
- School of Engineering Zurich University of Applied Sciences Technikumstrasse 9 Winterthur 8400 Switzerland
| | - Mathias Bonmarin
- School of Engineering Zurich University of Applied Sciences Technikumstrasse 9 Winterthur 8400 Switzerland
| | - Davide Brambilla
- Faculté de Pharmacie Université de Montréal C.P. 6128, Succursale Centre‐ville, Montréal Québec H3C 3J7 Canada
| |
Collapse
|
12
|
Fabrication of nanohybrids toward improving therapeutic potential of a NIR photo-sensitizer: An optical spectroscopic and computational study. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113610] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
13
|
Michie MS, Xu B, Sudlow G, Springer LE, Pham CT, Achilefu S. Side-chain modification of collagen-targeting peptide prevents dye aggregation for improved molecular imaging of arthritic joints. J Photochem Photobiol A Chem 2022; 424:113624. [PMID: 36406204 PMCID: PMC9673490 DOI: 10.1016/j.jphotochem.2021.113624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Near-infrared (NIR) dye-peptide conjugates are widely used for tissue-targeted molecular fluorescence imaging of pathophysiologic conditions. However, the significant contribution of both dye and peptide to the net mass of these bioconjugates implies that small changes in either component could alter their photophysical and biological properties. Here, we synthesized and conjugated a type I collagen targeted peptide, RRANAALKAGELYKCILY, to either a hydrophobic (LS1000) or hydrophilic (LS1006) NIR fluorescent dye. Spectroscopic analysis revealed rapid self-assembly of both LS1000 and LS1006 in aqueous media to form stable dimeric/H aggregates, regardless of the free dye's solubility in water. We discovered that replacing the cysteine residue in LS1000 and LS1006 with acetamidomethyl cysteine to afford LS1001 and LS1107, respectively, disrupted the peptide's self-assembly and activated the previously quenched dye's fluorescence in aqueous conditions. These results highlight the dominant role of the octadecapeptide, but not the dye molecules, in controlling the photophysical properties of these conjugates by likely sequestering or extruding the hydrophobic or hydrophilic dyes, respectively. Application of the compounds for imaging collagen-rich tissue in an animal model of inflammatory arthritis showed enhanced uptake of all four conjugates, which retained high collagen-binding affinity, in inflamed joints. Moreover, LS1001 and LS1107 improved the arthritic joint-to-background contrast, suggesting that reduced aggregation enhanced the clearance of these compounds from non-target tissues. Our results highlight a peptide-driven strategy to alter the aggregation states of molecular probes in aqueous solutions, irrespective of the water-solubilizing properties of the dye molecules. The interplay between the monomeric and aggregated forms of the conjugates using simple thiol-modifiers lends the peptide-driven approach to diverse applications, including the effective imaging of inflammatory arthritis joints.
Collapse
Affiliation(s)
- Megan S. Michie
- Optical Radiology Laboratory, Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Baogang Xu
- Optical Radiology Laboratory, Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Gail Sudlow
- Optical Radiology Laboratory, Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Luke E. Springer
- Department of Medicine, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Christine T.N. Pham
- Department of Medicine, Division of Rheumatology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Samuel Achilefu
- Optical Radiology Laboratory, Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| |
Collapse
|
14
|
Li D, Smith BD. Deuterated Indocyanine Green (ICG) with Extended Aqueous Storage Shelf-Life: Chemical and Clinical Implications. Chemistry 2021; 27:14535-14542. [PMID: 34403531 PMCID: PMC8530945 DOI: 10.1002/chem.202102816] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Indexed: 12/17/2022]
Abstract
Indocyanine Green (ICG) is a clinically approved near-infrared fluorescent dye that is used extensively for various imaging and diagnostic procedures. One drawback with ICG is its instability in water, which means that reconstituted clinical doses have to be used very shortly after preparation. Two deuterated versions of ICG were prepared with deuterium atoms on the heptamethine chain, and the spectral, physiochemical, and photostability properties were quantified. A notable mechanistic finding is that self-aggregation of ICG in water strongly favors dye degradation by a photochemical oxidative dimerization reaction that gives a nonfluorescent product. Storage stability studies showed that replacement of C-H with C-D decreased the dimerization rate constant by a factor of 3.1, and it is likely that many medical and preclinical procedures will benefit from the longer shelf-lives of these two deuterated ICG dyes. The discovery that ICG self-aggregation promotes photoinduced electron transfer can be exploited as a new paradigm for next-generation photodynamic therapies.
Collapse
Affiliation(s)
- Dong‐Hao Li
- Department of Chemistry & BiochemistryUniversity of Notre Dame251 Nieuwland Science HallNotre DameIN, 46545USA
| | - Bradley D. Smith
- Department of Chemistry & BiochemistryUniversity of Notre Dame251 Nieuwland Science HallNotre DameIN, 46545USA
| |
Collapse
|
15
|
Höltke C, Alsibai W, Grewer M, Stölting M, Geyer C, Eisenblätter M, Wildgruber M, Helfen A. How Different Albumin-Binders Drive Probe Distribution of Fluorescent RGD Mimetics. Front Chem 2021; 9:689850. [PMID: 34504831 PMCID: PMC8421774 DOI: 10.3389/fchem.2021.689850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 08/09/2021] [Indexed: 11/13/2022] Open
Abstract
The biodistribution of medical imaging probes depends on the chemical nature of the probe and the preferred metabolization and excretion routes. Especially targeted probes, which have to reach a certain (sub)cellular destination, have to be guided to the tissue of interest. Therefore, small molecular probes need to exhibit a well-balanced polarity and lipophilicity to maintain an advantageous bioavailability. Labelled antibodies circulate for several days due to their size. To alter the biodistribution behavior of probes, different strategies have been pursued, including utilizing serum albumin as an inherent transport mechanism for small molecules. We describe here the modification of an existing fluorescent RGD mimetic probe targeted to integrin αvβ3 with three different albumin binding moieties (ABMs): a diphenylcyclohexyl (DPCH) group, a p-iodophenyl butyric acid (IPBA) and a fatty acid (FA) group with the purpose to identify an optimal ABM for molecular imaging applications. All three modifications result in transient albumin binding and a preservation of the target binding capability. Spectrophotometric measurements applying variable amounts of bovine serum albumin (BSA) reveal considerable differences between the compounds concerning their absorption and emission characteristics and hence their BSA binding mode. In vivo the modified probes were investigated in a murine U87MG glioblastoma xenograft model over the course of 1 wk by fluorescence reflectance imaging (FRI) and fluorescence mediated tomography (FMT). While the unmodified probe was excreted rapidly, the albumin-binding probes were accumulating in tumor tissue for at least 5 days. Considerable differences between the three probes in biodistribution and excretion characteristics were proved, with the DPCH-modified probe showing the highest overall signal intensities, while the FA-modified probe exhibits a low but more specific fluorescent signal. In conclusion, the modification of small molecular RGD mimetics with ABMs can precisely fine-tune probe distribution and offers potential for future clinical applications.
Collapse
Affiliation(s)
- Carsten Höltke
- Clinic for Radiology, University Hospital Münster, Münster, Germany
| | - Wael Alsibai
- Clinic for Radiology, University Hospital Münster, Münster, Germany
| | - Martin Grewer
- Clinic for Radiology, University Hospital Münster, Münster, Germany
| | - Miriam Stölting
- Clinic for Radiology, University Hospital Münster, Münster, Germany
| | - Christiane Geyer
- Clinic for Radiology, University Hospital Münster, Münster, Germany
| | - Michel Eisenblätter
- Clinic for Radiology, University Hospital Münster, Münster, Germany.,Department of Radiology, University Hospital Freiburg, Freiburg, Germany
| | - Moritz Wildgruber
- Clinic for Radiology, University Hospital Münster, Münster, Germany.,Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Anne Helfen
- Clinic for Radiology, University Hospital Münster, Münster, Germany
| |
Collapse
|
16
|
Reddy NR, Aubin M, Kushima A, Fang J. Fluorescent H-Aggregate Vesicles and Tubes of a Cyanine Dye and Their Potential as Light-Harvesting Antennae. J Phys Chem B 2021; 125:7911-7918. [PMID: 34232656 DOI: 10.1021/acs.jpcb.1c04262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
H-aggregates of π-conjugated dyes are an ordered supramolecular structure. However, the non-fluorescence behavior of H-aggregates greatly limits their potential applications. In this paper, we report the formation of fluorescent H-aggregates with vesicular and tubular morphologies by the self-assembly of 3,3'-diethylthiacarbocyanine iodide (DiSC2(3)) in ammonia/methanol mixtures. The transition from H-aggregate vesicles to H-aggregate tubes can be achieved by increasing the volume fraction of methanol in the mixtures. H-aggregate vesicles and tubes show two blue-shifted absorption bands and strong fluorescence, which result from the inclined arrangement of DiSC2(3) molecules. Furthermore, light-harvesting complexes are formed by adding dopamine (DA)-quinone (acceptor) in synthetic urine with H-aggregate vesicles or tubes. Our results show that H-aggregate tubes are more efficient than H-aggregate vesicles in transferring excited electrons to DA-quinone acceptors.
Collapse
Affiliation(s)
- Nitin Ramesh Reddy
- Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816, United States
| | - Megan Aubin
- Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816, United States
| | - Akihiro Kushima
- Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816, United States
| | - Jiyu Fang
- Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816, United States
| |
Collapse
|
17
|
Deng L, Zhai J, Du X, Xie X. Ionophore-Based Ion-Selective Nanospheres Based on Monomer-Dimer Conversion in the Near-Infrared Region. ACS Sens 2021; 6:1279-1285. [PMID: 33566586 DOI: 10.1021/acssensors.0c02577] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Here, we report ion-selective nanospheres with readout in the near-infrared (NIR) region in both fluorescence and absorbance modes. The nanospheres rely on an ionophore-mediated monomer-dimer conversion of an NIR transducer, DTTC. The DTTC monomer in the nanospheres emits fluorescence around 820 nm, while the dimer in the aqueous environment generates strong blue-shifted emission around 660 nm. With a lead ionophore, an unprecedented lower detection limit of 3 pM for Pb2+ was achieved, allowing us to determine Pb2+ levels in river water without diluting the sample. Also, the Cu2+-selective nanospheres showed a detection limit of 5 nM. Taking advantage of the biologically desired NIR window, blood potassium concentrations were also determined without a complicated sample pretreatment. The sensing process was explained with a theoretical model. The detection range was found finely adjustable by the amount of nanospheres used. Therefore, the nanospheres formed a highly selective, sensitive, versatile, and rapid analytical platform for metal-ion sensing.
Collapse
Affiliation(s)
- Li Deng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingying Zhai
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xinfeng Du
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| |
Collapse
|
18
|
Li X, Zhao Y, Zhang T, Xing D. Mitochondria-Specific Agents for Photodynamic Cancer Therapy: A Key Determinant to Boost the Efficacy. Adv Healthc Mater 2021; 10:e2001240. [PMID: 33236531 DOI: 10.1002/adhm.202001240] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/02/2020] [Indexed: 02/06/2023]
Abstract
Mitochondria-targeted photodynamic therapy (Mt-PDT), which enables the photogenerated cytotoxic oxygen species with fatal oxidative damage to block mitochondrial functions, has been considered as a promising method to enhance the anticancer effectiveness. Aiming at the challenges of PDT, in the past few decades, numerous mitochondria-targeting molecular agents have been developed to boost the PDT efficacy via directly destroying the mitochondria or activating mitochondria-mediated cell death pathways. Herein, a review for recent advances of Mt-PDT is highlighted including: mitochondrial targeting design principles and strategies, therapeutic performance of mitochondria-targeted agents-mediated PDT as well as the agent-free Mt-PDT. In addition, it puts together the achievements of the combinatory mitochondria-anchoring PDT and other anticancer strategies, demonstrating the advantages provided by Mt-PDT. The existing challenges are discussed and future settlements for the development of mitochondria-specific agents are also forecasted.
Collapse
Affiliation(s)
- Xipeng Li
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
- Guangdong Provincial Key Laboratory of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
| | - Yu Zhao
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
- Guangdong Provincial Key Laboratory of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
| | - Tao Zhang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
- Guangdong Provincial Key Laboratory of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
- Guangdong Provincial Key Laboratory of Laser Life Science College of Biophotonics South China Normal University Guangzhou 510631 P. R. China
| |
Collapse
|
19
|
Tian X, Liu H, Wei F, Wang X, Zhao S, Liu C, Tse YC, Wong KM. A Deep‐Red to Near Infrared (NIR) Fluorescent Probe Based on a Sulfur‐Modified Rhodamine Derivative with Two Spirolactone Rings. Chempluschem 2020; 85:1639-1645. [DOI: 10.1002/cplu.202000384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/16/2020] [Indexed: 01/31/2023]
Affiliation(s)
- Xinyu Tian
- Department of ChemistrySouthern University of Science and Technology No. 1088, Tangchang Boulevard, Nanshan District Shenzhen Guangdong P.R. China
| | - Huawei Liu
- Department of ChemistrySouthern University of Science and Technology No. 1088, Tangchang Boulevard, Nanshan District Shenzhen Guangdong P.R. China
| | - Fangfang Wei
- Department of ChemistrySouthern University of Science and Technology No. 1088, Tangchang Boulevard, Nanshan District Shenzhen Guangdong P.R. China
| | - Xiangchuan Wang
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease ResearchShenzhen Key Laboratory of Cell MicroenvironmentDepartment of BiologySouthern University of Science and Technology Shenzhen P.R. China
| | - Shunan Zhao
- Department of ChemistrySouthern University of Science and Technology No. 1088, Tangchang Boulevard, Nanshan District Shenzhen Guangdong P.R. China
| | - Chuangjun Liu
- Department of ChemistrySouthern University of Science and Technology No. 1088, Tangchang Boulevard, Nanshan District Shenzhen Guangdong P.R. China
- College of Chemistry and Pharmaceutical EngineeringHuanghuai University 463000 Zhumadian P.R. China
| | - Yu Chung Tse
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease ResearchShenzhen Key Laboratory of Cell MicroenvironmentDepartment of BiologySouthern University of Science and Technology Shenzhen P.R. China
| | - Keith Man‐Chung Wong
- Department of ChemistrySouthern University of Science and Technology No. 1088, Tangchang Boulevard, Nanshan District Shenzhen Guangdong P.R. China
| |
Collapse
|
20
|
Jana B, Thomas AP, Kim S, Lee IS, Choi H, Jin S, Park SA, Min SK, Kim C, Ryu JH. Self-Assembly of Mitochondria-Targeted Photosensitizer to Increase Photostability and Photodynamic Therapeutic Efficacy in Hypoxia. Chemistry 2020; 26:10695-10701. [PMID: 32428292 DOI: 10.1002/chem.202001366] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/08/2020] [Indexed: 12/19/2022]
Abstract
The development of photosensitizers for cancer photodynamic therapy has been challenging due to their low photostability and therapeutic inefficacy in hypoxic tumor microenvironments. To overcome these issues, we have developed a mitochondria-targeted photosensitizer consisting of an indocyanine moiety with triphenylphosphonium arms, which can self-assemble into spherical micelles directed to mitochondria. Self-assembly of the photosensitizer resulted in a higher photostability by preventing free rotation of the indoline ring of the indocyanine moiety. The mitochondria targeting capability of the photosensitizer allowed it to utilize intramitochondrial oxygen. We found that the mitochondria-targeted photosensitizer localized to mitochondria and induced apoptosis of cancer cells both normoxic and hypoxic conditions through generation of ROS. The micellar self-assemblies of the photosensitizer were further confirmed to selectively localize to tumor tissues in a xenograft tumor mouse model through passive targeting and showed efficient tumor growth inhibition.
Collapse
Affiliation(s)
- Batakrishna Jana
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Ajesh P Thomas
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Sangpil Kim
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - In Seong Lee
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Huyeon Choi
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Seongeon Jin
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Soo Ah Park
- In Vivo Research Center, UNIST, Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Seung Kyu Min
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Chaekyu Kim
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Ja-Hyoung Ryu
- Department of chemistry, Ulsan National Institute of, Science and Technology (UNIST), Ulsan, 44919, South Korea
| |
Collapse
|
21
|
Morla-Folch J, Vargas-Nadal G, Zhao T, Sissa C, Ardizzone A, Kurhuzenkau S, Köber M, Uddin M, Painelli A, Veciana J, Belfield KD, Ventosa N. Dye-Loaded Quatsomes Exhibiting FRET as Nanoprobes for Bioimaging. ACS APPLIED MATERIALS & INTERFACES 2020; 12:20253-20262. [PMID: 32268722 DOI: 10.1021/acsami.0c03040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fluorescent organic nanoparticles (FONs) are emerging as an attractive alternative to the well-established fluorescent inorganic nanoparticles or small organic dyes. Their proper design allows one to obtain biocompatible probes with superior brightness and high photostability, although usually affected by low colloidal stability. Herein, we present a type of FONs with outstanding photophysical and physicochemical properties in-line with the stringent requirements for biomedical applications. These FONs are based on quatsome (QS) nanovesicles containing a pair of fluorescent carbocyanine molecules that give rise to Förster resonance energy transfer (FRET). Structural homogeneity, high brightness, photostability, and high FRET efficiency make these FONs a promising class of optical bioprobes. Loaded QSs have been used for in vitro bioimaging, demonstrating the nanovesicle membrane integrity after cell internalization, and the possibility to monitor the intracellular vesicle fate. Taken together, the proposed QSs loaded with a FRET pair constitute a promising platform for bioimaging and theranostics.
Collapse
Affiliation(s)
- Judit Morla-Folch
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Guillem Vargas-Nadal
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
| | - Tinghan Zhao
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Cristina Sissa
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Antonio Ardizzone
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
| | - Siarhei Kurhuzenkau
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Mariana Köber
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Centro de Investigación Biomédica en Red CIBER-BBN, Barcelona, Spain
| | - Mehrun Uddin
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Anna Painelli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Jaume Veciana
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Centro de Investigación Biomédica en Red CIBER-BBN, Barcelona, Spain
| | - Kevin D Belfield
- Department of Chemistry and Environmental Science, College of Science and Liberal Arts, New Jersey Institute of Technology, 323 Martin Luther King, Jr., Blvd., Newark, New Jersey 07102, United States
| | - Nora Ventosa
- Institut Ciencia dels Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Cerdanyola, Spain
- Centro de Investigación Biomédica en Red CIBER-BBN, Barcelona, Spain
| |
Collapse
|
22
|
Widen JC, Tholen M, Yim JJ, Bogyo M. Methods for analysis of near-infrared (NIR) quenched-fluorescent contrast agents in mouse models of cancer. Methods Enzymol 2020; 639:141-166. [PMID: 32475399 DOI: 10.1016/bs.mie.2020.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Optical contrast agents containing near-infrared (NIR) fluorophores are useful for visualizing biological landmarks, enzyme activities and biological processes in live animals and humans. Activatable (smart) quenched-fluorescent probes are sensors that become fluorescent after processing by an enzyme or in response to a physiological change (i.e., pH, ROS, etc.). Recently, there has been increased interest in developing activatable probes for research and clinical applications. This requires evaluation using in vivo animal models to gain insights into the pharmacodynamic and pharmacokinetic properties of a given probe. Important parameters to measure when evaluating quenched-fluorescent probes are signal brightness and signal-to-background ratios, which define the sensitivity and specificity of a probe. In this chapter, we discuss methods to evaluate activatable quenched-fluorescent probes in mouse models of cancer. Quantification of fluorescent signal intensity, calculation of tumor-to-background ratios, comparison of fluorescent activation in specific organ compartments, and fluorescence scanning of sectioned tissue will be discussed.
Collapse
Affiliation(s)
- John C Widen
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States
| | - Martina Tholen
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States
| | - Joshua J Yim
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States; Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Matthew Bogyo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States; Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States; Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, United States.
| |
Collapse
|
23
|
Qi B, Crawford AJ, Wojtynek NE, Talmon GA, Hollingsworth MA, Ly QP, Mohs AM. Tuned near infrared fluorescent hyaluronic acid conjugates for delivery to pancreatic cancer for intraoperative imaging. Theranostics 2020; 10:3413-3429. [PMID: 32206099 PMCID: PMC7069077 DOI: 10.7150/thno.40688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/23/2020] [Indexed: 02/06/2023] Open
Abstract
The prognosis of pancreatic cancer remains poor. Intraoperative fluorescence imaging of tumors could improve staging and surgical resection, thereby improving prognosis. However, imaging pancreatic cancer with macromolecular delivery systems, is often hampered by nonspecific organ accumulation. Methods: We describe the rational development of hyaluronic acid (HA) conjugates that vary in molecular weight and are conjugated to near infrared fluorescent (NIRF) dyes that have differences in hydrophilicity, serum protein binding affinity, and clearance mechanism. We systematically investigated the roles of each of these properties on tumor accumulation, relative biodistribution, and the impact of intraoperative imaging of orthotopic, syngeneic pancreatic cancer. Results: Each HA-NIRF conjugate displayed intrapancreatic tumor enhancement. Regardless of HA molecular weight, Cy7.5 conjugation directed biodistribution to the liver, spleen, and bowels. Conjugation of IRDye800 to 5 and 20 kDa HA resulted in low liver and spleen signal while enhancing the tumor up to 14-fold compared to healthy pancreas, while 100 kDa HA conjugated to IRDye800 resulting in liver and spleen accumulation. Conclusion: These studies demonstrate that by tuning HA molecular weight and the physicochemical properties of the conjugated moiety, in this case a NIRF probe, peritoneal biodistribution can be substantially altered to achieve optimized delivery to tumors intraoperative abdominal imaging.
Collapse
|
24
|
Kaur R, Saini S, Kaur N, Singh N, Jang DO. Rhodamine-based fluorescent probe for sequential detection of Al 3+ ions and adenosine monophosphate in water. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 225:117523. [PMID: 31525630 DOI: 10.1016/j.saa.2019.117523] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
Organic nanoparticles (N1) were prepared by dispersing thiophene-conjugated rhodamine derivative 1 in a buffer solution (10 mM TRIS, pH 7.4, containing 1% DMSO, v/v). N1 selectively recognized Al3+ ions through the "OFF-ON" switching mechanism of the spirolactam ring in rhodamine. The resulting N1·Al3+ complex recognized the biologically important molecule adenosine monophosphate (AMP) through a cation displacement process with a detection limit of 2 nM. N1 was capable of determining the concentration of Al3+ ions in environmental and biological samples. Portable test strips of N1 were prepared for the recognition of Al3+ ions and AMP for practical uses. Furthermore, it was demonstrated that the N1·Al3+ complex facilitated real-time monitoring of AMP concentration in the hydrolysis of ATP and ADP.
Collapse
Affiliation(s)
- Rajinder Kaur
- Centre for Nanoscience and Nanotechnology (UIEAST), Panjab University, Chandigarh 160014, India
| | - Sanjeev Saini
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Navneet Kaur
- Department of Chemistry, Panjab University, Chandigarh 160014, India.
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India.
| | - Doo Ok Jang
- Department of Chemistry, Yonsei University, Wonju 26493, Republic of Korea.
| |
Collapse
|
25
|
Bera A, Bagchi D, Pal SK. Improvement of Photostability and NIR Activity of Cyanine Dye through Nanohybrid Formation: Key Information from Ultrafast Dynamical Studies. J Phys Chem A 2019; 123:7550-7557. [PMID: 31402654 DOI: 10.1021/acs.jpca.9b04100] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Near-infrared (NIR) light harvesting has enormous importance for different potential applications in the modern era of research. Some NIR cyanine dyes such as IR820 have achieved great success in energy harvesting and cancer therapy. However, their action is limited for low photostability, considerable thermal degradation, short circulation times, and nonspecific biodistribution. Our present study is an attempt to overcome such limitations by attaching a model cyanine dye IR820 with ZnO nanoparticles. We prepared an IR820-ZnO nanohybrid and characterized it using microscopic and optical spectroscopic tools. Thermogravimetric analysis depicted greater thermal stability of the IR820-ZnO nanohybrid compared to free dye. We explored the enhancement in the photostability of IR820 upon nanohybrid formation. We detected generation of photoinduced reactive oxygen species (ROS) such as superoxide, singlet oxygen, and so forth using appropriate molecular probes. The formation of IR820-ZnO nanohybrid reduced production of photoinduced singlet oxygen. However, it revealed an alternative trend in overall ROS formation (increases total ROS) under red light illumination. To correlate the enhanced photostability of IR820 on the ZnO surface, we explored excited-state dynamical processes at the interface in nanohybrids. We illustrated the photoinduced excited-state electron-transfer process from the lowest unoccupied molecular orbital of IR820 to the conduction band of ZnO. This photoelectron-transfer process enhances the production of ROS and decreases the formation of singlet oxygen that altogether leads to improvement in photostability and overall activity. A quencher of singlet oxygen sodium azide (NaN3) was used to further confirm the direct association of singlet oxygen generation with the photostability issue of IR820. Also, ZnO is able to deliver the dye selectively in acidic environment, which suggests its diseased site-specific targeted activity. Our results provide promising improvement for potential use of IR820 through formation of a nanohybrid that could be translated for other NIR cyanine dyes.
Collapse
Affiliation(s)
- Arpan Bera
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Damayanti Bagchi
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| | - Samir Kumar Pal
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 106, India
| |
Collapse
|
26
|
Tang JC, Partono A, Anvari B. Near-Infrared-Fluorescent Erythrocyte-Mimicking Particles: Physical and Optical Characteristics. IEEE Trans Biomed Eng 2019; 66:1034-1044. [PMID: 30130175 PMCID: PMC6382600 DOI: 10.1109/tbme.2018.2866368] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Exogenous fluorescent materials activated by near-infrared (NIR) light can offer deep optical imaging with subcellular resolution, and enhanced image contrast. We have engineered NIR particles by doping hemoglobin-depleted erythrocyte ghosts (EGs) with indocyanine green (ICG). We refer to these optical particles as NIR erythrocyte-mimicking transducers (NETs). A particular feature of NETs is that their diameters can be tuned from micrometer to nanometer scale, thereby, providing a capability for broad NIR biomedical imaging applications. Herein, we investigate the effects of ICG concentration on key material properties of micrometer-sized NETs, and nanometer-sized NETs fabricated by either sonication or mechanical extrusion of EGs. The zeta potentials of NETs do not vary significantly with ICG concentration, suggesting that ICG is encapsulated within NETs regardless of particle size or ICG concentration. Loading efficiency of ICG into the NETs monotonically decreases with increasing values of ICG concentration. Based on quantitative analyses of the fluorescence emission spectra of the NETs, we determine that 20 μM ICG utilized during fabrication of NETs presents an optimal concentration that maximizes the integrated fluorescence emission for micrometer- and nanometer-sized NETs. Encapsulation of the ICG in these constructs also enhances the fluorescence stability and quantum yield of ICG. These results guide the engineering of NETs with maximal NIR emission for imaging applications such as fluorescence-guided tumor resection and real-time angiography.
Collapse
|
27
|
Philip AM, Manikandan SK, Shaji A, Hariharan M. Concerted Interplay of Excimer and Dipole Coupling Governs the Exciton Relaxation Dynamics in Crystalline Anthracenes. Chemistry 2018; 24:18089-18096. [PMID: 30260513 DOI: 10.1002/chem.201804139] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Indexed: 11/08/2022]
Abstract
A combined theoretical and experimental investigation into the role of concerted long- (dipole coupling) and short-range (orbital overlap mediated excimer) electronic interactions in modulating the emission of six crystalline acetylanthracenes (1-3) is reported. Friedel-Crafts acylation of anthracene rendered crystalline acetylanthracenes with discrete close packing, varied orbital overlap, and resultant distinct emission (blue-green-yellow) from cooperative excimer and dipole coupling. Time-resolved emission spectroscopy (TRES) studies and the Kasha's exciton theory based quantitative estimation of dipole coupling (mean-field approximation) substantiates the exciton dynamics in crystalline 1-3. Extension of the Kasha's exciton model beyond the traditional nearest-neighbor approach, and consistent agreement among the computed spectral shifts and TRES temporal components, corroborate a holistic approach to decipher the exciton relaxation dynamics in the molecular assembly of novel photonic materials.
Collapse
Affiliation(s)
- Abbey M Philip
- School of Chemistry, Indian Institute of Science Education, and Research Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India
| | - Sreenath K Manikandan
- School of Physics, Indian Institute of Science Education, and Research Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India.,Present Address: Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA
| | - Anil Shaji
- School of Physics, Indian Institute of Science Education, and Research Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India
| | - Mahesh Hariharan
- School of Chemistry, Indian Institute of Science Education, and Research Thiruvananthapuram (IISER-TVM), Maruthamala P. O., Vithura, Thiruvananthapuram, Kerala, 695551, India
| |
Collapse
|
28
|
Cauley AN, Wilson JN. Functionalized lignin biomaterials for enhancing optical properties and cellular interactions of dyes. Biomater Sci 2018; 5:2114-2121. [PMID: 28831468 DOI: 10.1039/c7bm00518k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We report a library of functionalized lignins and demonstrate their utility as nanocontainers for organic dyes in biologically relevant applications. Kraft lignin was modified via SN2 reaction at the phenolic -OH group utilizing a mild base, potassium carbonate, and various alkyl halides, several bearing additional functionalities, with dimethylsulfoxide as solvent. The resulting phenoxy ethers were characterized by 1H-NMR and IR spectroscopy, as well as DLS and SEM to evaluate their morphology and supramolecular organization. Lignin modified with long-chain hydrocarbon tails was found to effectively encapsulate DiD, a cyanine dye, decrease aggregation, enhance optical transitions and exert a photoprotective effect. The dye-lignin assemblies were also examined as imaging agents, via confocal microscopy, and found to accumulate intracellularly with no leaching of the dye to hydrophobic subcellular components observed. Lignin functionalized with short chain carboxylic acids interacts with ligands directed at the norepinephrine transporter (NET), suggesting applications in sequestration of neuroactive compounds.
Collapse
Affiliation(s)
- Anthony N Cauley
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33124, USA.
| | | |
Collapse
|
29
|
Berlepsch HV, Böttcher C. Tubular J-aggregates of a new thiacarbocyanine Cy5 dye for the far-red spectral region – a spectroscopic and cryo-transmission electron microscopy study. Phys Chem Chem Phys 2018; 20:18969-18977. [DOI: 10.1039/c8cp03378a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A new phenol-substituted Cy5 dye forms tubular J-aggregates that are active in the far-red spectral region.
Collapse
Affiliation(s)
- Hans v. Berlepsch
- Forschungszentrum für Elektronenmikroskopie
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- D-14195 Berlin
- Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- D-14195 Berlin
- Germany
| |
Collapse
|
30
|
Thomas AP, Palanikumar L, Jeena MT, Kim K, Ryu JH. Cancer-mitochondria-targeted photodynamic therapy with supramolecular assembly of HA and a water soluble NIR cyanine dye. Chem Sci 2017; 8:8351-8356. [PMID: 29619181 PMCID: PMC5858757 DOI: 10.1039/c7sc03169f] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 10/09/2017] [Indexed: 12/16/2022] Open
Abstract
Mitochondria-targeted cancer therapies have proven to be more effective than other similar non-targeting techniques, especially in photodynamic therapy (PDT). Indocyanine dye derivatives, particularly IR-780, are widely known for their PDT utility. However, poor water solubility, dark toxicity, and photobleaching are limiting factors for these dyes, which otherwise show promise based on their good absorption in the near-infrared (NIR) region and mitochondria targeting ability. Herein, we introduce an indocyanine derivative (IR-Pyr) that is highly water soluble, exhibiting higher mitochondrial targetability and better photostability than IR-780. Furthermore, electrostatic interactions between the positively charged IR-Pyr and negatively charged hyaluronic acid (HA) were utilized to construct a micellar aggregate that is selective towards cancer cells. The cancer mitochondria-targeted strategy confirms high PDT efficacy as proved by in vitro and in vivo experiments.
Collapse
Affiliation(s)
- Ajesh P Thomas
- Department of Chemistry , School of Natural Sciences , Ulsan National Institute of Science and Technology (UNIST) , Ulsan-44919 , South Korea .
| | - L Palanikumar
- Department of Chemistry , School of Natural Sciences , Ulsan National Institute of Science and Technology (UNIST) , Ulsan-44919 , South Korea .
| | - M T Jeena
- Department of Chemistry , School of Natural Sciences , Ulsan National Institute of Science and Technology (UNIST) , Ulsan-44919 , South Korea .
| | - Kibeom Kim
- Department of Chemistry , School of Natural Sciences , Ulsan National Institute of Science and Technology (UNIST) , Ulsan-44919 , South Korea .
| | - Ja-Hyoung Ryu
- Department of Chemistry , School of Natural Sciences , Ulsan National Institute of Science and Technology (UNIST) , Ulsan-44919 , South Korea .
| |
Collapse
|
31
|
Cannon BL, Kellis DL, Patten LK, Davis PH, Lee J, Graugnard E, Yurke B, Knowlton WB. Coherent Exciton Delocalization in a Two-State DNA-Templated Dye Aggregate System. J Phys Chem A 2017; 121:6905-6916. [PMID: 28813152 DOI: 10.1021/acs.jpca.7b04344] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Coherent exciton delocalization in dye aggregate systems gives rise to a variety of intriguing optical phenomena, including J- and H-aggregate behavior and Davydov splitting. Systems that exhibit coherent exciton delocalization at room temperature are of interest for the development of artificial light-harvesting devices, colorimetric detection schemes, and quantum computers. Here, we report on a simple dye system templated by DNA that exhibits tunable optical properties. At low salt and DNA concentrations, a DNA duplex with two internally functionalized Cy5 dyes (i.e., dimer) persists and displays predominantly J-aggregate behavior. Increasing the salt and/or DNA concentrations was found to promote coupling between two of the DNA duplexes via branch migration, thus forming a four-armed junction (i.e., tetramer) with H-aggregate behavior. This H-tetramer aggregate exhibits a surprisingly large Davydov splitting in its absorbance spectrum that produces a visible color change of the solution from cyan to violet and gives clear evidence of coherent exciton delocalization.
Collapse
Affiliation(s)
- Brittany L Cannon
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| | - Donald L Kellis
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| | - Lance K Patten
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| | - Paul H Davis
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| | - Jeunghoon Lee
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| | - Elton Graugnard
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| | - Bernard Yurke
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| | - William B Knowlton
- Micron School of Materials Science & Engineering, ‡Department of Chemistry & Biochemistry, and §Department of Electrical & Computer Engineering, Boise State University , Boise, Idaho 83725, United States
| |
Collapse
|
32
|
Martínez-Sernández V, Mezo M, González-Warleta M, Perteguer MJ, Gárate T, Romarís F, Ubeira FM. Delineating distinct heme-scavenging and -binding functions of domains in MF6p/helminth defense molecule (HDM) proteins from parasitic flatworms. J Biol Chem 2017; 292:8667-8682. [PMID: 28348084 DOI: 10.1074/jbc.m116.771675] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/17/2017] [Indexed: 12/27/2022] Open
Abstract
MF6p/FhHDM-1 is a small protein secreted by the parasitic flatworm (trematode) Fasciola hepatica that belongs to a broad family of heme-binding proteins (MF6p/helminth defense molecules (HDMs)). MF6p/HDMs are of interest for understanding heme homeostasis in trematodes and as potential targets for the development of new flukicides. Moreover, interest in these molecules has also increased because of their immunomodulatory properties. Here we have extended our previous findings on the mechanism of MF6p/HDM-heme interactions and mapped the protein regions required for heme binding and for other biological functions. Our data revealed that MF6p/FhHDM-1 forms high-molecular-weight complexes when associated with heme and that these complexes are reorganized by a stacking procedure to form fibril-like and granular nanostructures. Furthermore, we showed that MF6p/FhHDM-1 is a transitory heme-binding protein as protein·heme complexes can be disrupted by contact with an apoprotein (e.g. apomyoglobin) with higher affinity for heme. We also demonstrated that (i) the heme-binding region is located in the MF6p/FhHDM-1 C-terminal moiety, which also inhibits the peroxidase-like activity of heme, and (ii) MF6p/HDMs from other trematodes, such as Opisthorchis viverrini and Paragonimus westermani, also bind heme. Finally, we observed that the N-terminal, but not the C-terminal, moiety of MF6p/HDMs has a predicted structural analogy with cell-penetrating peptides and that both the entire protein and the peptide corresponding to the N-terminal moiety of MF6p/FhHDM-1 interact in vitro with cell membranes in hemin-preconditioned erythrocytes. Our findings suggest that MF6p/HDMs can transport heme in trematodes and thereby shield the parasite from the harmful effects of heme.
Collapse
Affiliation(s)
- Victoria Martínez-Sernández
- From the Laboratorio de Parasitología, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Mercedes Mezo
- the Laboratorio de Parasitología, Centro de Investigaciones Agrarias de Mabegondo, Instituto Galego da Calidade Alimentaria (INGACAL), 15318 Abegondo, A Coruña, Spain, and
| | - Marta González-Warleta
- the Laboratorio de Parasitología, Centro de Investigaciones Agrarias de Mabegondo, Instituto Galego da Calidade Alimentaria (INGACAL), 15318 Abegondo, A Coruña, Spain, and
| | - María J Perteguer
- the Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28220 Majadahonda, Madrid, Spain
| | - Teresa Gárate
- the Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28220 Majadahonda, Madrid, Spain
| | - Fernanda Romarís
- From the Laboratorio de Parasitología, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Florencio M Ubeira
- From the Laboratorio de Parasitología, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain,
| |
Collapse
|
33
|
Development of a Modular Ratiometric Fluorescent Probe for the Detection of Extracellular Superoxide. Chemistry 2017; 23:4765-4769. [DOI: 10.1002/chem.201700563] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Indexed: 02/05/2023]
|
34
|
Sharma A, Gadly T, Neogy S, Ghosh SK, Kumbhakar M. Molecular Origin and Self-Assembly of Fluorescent Carbon Nanodots in Polar Solvents. J Phys Chem Lett 2017; 8:1044-1052. [PMID: 28198626 DOI: 10.1021/acs.jpclett.7b00170] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Despite numerous efforts, there are several fundamental ambiguities regarding the photoluminescence of carbon dots (CDs). Spectral shift measurements display characteristic of both π-π* and n-π* transitions for the main absorption or excitation band at ∼350 nm, contrary to common assignment of exclusive n-π* transition. Additionally, the generally perceived core-state transition at ∼250 nm, involving sp2-networked carbogenic domains shielded from external environments, needs to be reassessed because it fails to explain the observed fluorescence quenching and spectral shift. These results have been explained based on the molecular origin of PL in CDs invoking the similarity between CD and citrazinic acid. Fluorescent derivatives of the latter are recognized to be produced during citric-acid-based CD synthesis. Concentration-dependent spectral splitting of the main excitation band in combination with the temperature-dependent PL results has been envisioned assuming self-assembly of CDs into various H-aggregates.
Collapse
Affiliation(s)
- Arjun Sharma
- Homi Bhabha National Institute , Training School Complex, Anushaktinagar, Mumbai 400094, India
| | | | | | - Sunil Kumar Ghosh
- Homi Bhabha National Institute , Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Manoj Kumbhakar
- Homi Bhabha National Institute , Training School Complex, Anushaktinagar, Mumbai 400094, India
| |
Collapse
|
35
|
Dimitriev OP, Bricks J, Smirnova AL, Slominskii YL. Towards white-light generation through upconversion of low-power near-infrared photons. RSC Adv 2017. [DOI: 10.1039/c7ra00797c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
A broadband upconverted emission combined with a broadband infrared absorption takes place in films composed of the same infrared dye molecules.
Collapse
Affiliation(s)
- Oleg P. Dimitriev
- V. Lashkaryov Institute of Semiconductor Physics
- The NAS of Ukraine
- Kyiv 03028
- Ukraine
| | - Julia L. Bricks
- Institute of Organic Chemistry
- The NAS of Ukraine
- Kyiv 02660
- Ukraine
| | - Anna L. Smirnova
- Institute of Organic Chemistry
- The NAS of Ukraine
- Kyiv 02660
- Ukraine
| | | |
Collapse
|
36
|
Cao X, Zhao N, Li R, Lv H, Zhang Z, Gao A, Yi T. Steric-Structure-Dependent Gel Formation, Hierarchical Structures, Rheological Behavior, and Surface Wettability. Chem Asian J 2016; 11:3196-3204. [DOI: 10.1002/asia.201601011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/06/2016] [Indexed: 01/30/2023]
Affiliation(s)
- Xinhua Cao
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Na Zhao
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Ruohan Li
- Department of Chemistry and Collaborative Innovation Centre of Energy Materials; Fudan University; Shanghai 200433 China
| | - Haiting Lv
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Zongwen Zhang
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Aiping Gao
- College of Chemistry and Chemical Engineering; Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains; Xinyang Normal University; Xinyang 464000 China
| | - Tao Yi
- Department of Chemistry and Collaborative Innovation Centre of Energy Materials; Fudan University; Shanghai 200433 China
| |
Collapse
|
37
|
Sharma A, Gadly T, Gupta A, Ballal A, Ghosh SK, Kumbhakar M. Origin of Excitation Dependent Fluorescence in Carbon Nanodots. J Phys Chem Lett 2016; 7:3695-3702. [PMID: 27588560 DOI: 10.1021/acs.jpclett.6b01791] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The fascinating aspect of excitation dependent fluorescence in carbon nanodots has led to several hypotheses, starting from particle size distribution to the presence of different emissive states and even to sluggish solvent relaxation around nanodot. In this contribution we provide definitive evidence for the involvement of discrete multiple electronic states for the excitation dependent emission in carbon nanodots. The presence of different types of aggregates even at very dilute solutions used in ensemble fluorescence spectroscopy, where fluorescence intensity shows linear dependence with absorbance, is the origin of these multiple electronic states. Inhomogeneous broadening due to slow solvent relaxation leading to excitation dependent spectral shift has negligible influence in conventional solvents.
Collapse
Affiliation(s)
- Arjun Sharma
- Radiation & Photochemistry Division, ‡Bio-organic Division, and §Molecular Biology Division, Bhabha Atomic Research Center , Mumbai 400085, India
| | - Trilochan Gadly
- Radiation & Photochemistry Division, ‡Bio-organic Division, and §Molecular Biology Division, Bhabha Atomic Research Center , Mumbai 400085, India
| | - Alka Gupta
- Radiation & Photochemistry Division, ‡Bio-organic Division, and §Molecular Biology Division, Bhabha Atomic Research Center , Mumbai 400085, India
| | - Anand Ballal
- Radiation & Photochemistry Division, ‡Bio-organic Division, and §Molecular Biology Division, Bhabha Atomic Research Center , Mumbai 400085, India
| | - Sunil Kumar Ghosh
- Radiation & Photochemistry Division, ‡Bio-organic Division, and §Molecular Biology Division, Bhabha Atomic Research Center , Mumbai 400085, India
| | - Manoj Kumbhakar
- Radiation & Photochemistry Division, ‡Bio-organic Division, and §Molecular Biology Division, Bhabha Atomic Research Center , Mumbai 400085, India
| |
Collapse
|
38
|
Graña-Suárez L, Verboom W, Buckle T, Rood M, van Leeuwen FWB, Huskens J. Loading and release of fluorescent oligoarginine peptides into/from pH-responsive anionic supramolecular nanoparticles. J Mater Chem B 2016; 4:4025-4032. [PMID: 32263101 DOI: 10.1039/c6tb00933f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Supramolecular nanoparticles (SNPs) based on negatively charged polymeric components can act as pH-responsive systems which allow the encapsulation and release of a positively charged cargo by electrostatic interactions. Fluorescent SNPs, based on the negatively charged poly(isobutyl-alt-maleic acid) and labeled with rhodamine B, were used as carriers to encapsulate positively charged Argn peptides grafted with a cyanine dye. The energy transfer (FRET) between the dyes residing in a single particle was used to provide a sensing mechanism to study the encapsulation and release of the peptide cargo into/from the SNPs. The change in the spectral signature of the cyanine dye from encapsulated in the SNPs to free in solution was used to characterize the Argn release. Finally, in vitro experiments revealed that the Argn release from these SNPs occurred at the pH drop that mimics lysosome conditions.
Collapse
Affiliation(s)
- Laura Graña-Suárez
- Molecular Nanofabrication group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
| | | | | | | | | | | |
Collapse
|
39
|
Guo Y, Zheng C, Yang H, Liang Y. Association behaviors of carbazole-labeled polyacrylamide in water studied by fluorescence spectroscopy. RSC Adv 2016. [DOI: 10.1039/c6ra15898f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Spectroscopic signatures in aggregation process of carbazole-labeled copolymers in water.
Collapse
Affiliation(s)
- Yongjun Guo
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
- Southwest Petroleum University
- Chengdu 610500
- People's Republic of China
- School of Chemistry and Chemical Engineering
| | - Chao Zheng
- Department of Research & Development
- Sichuan Guangya Polymer Chemical Company, Limited
- Chengdu 610500
- People's Republic of China
| | - Hongmei Yang
- Department of Research & Development
- Sichuan Guangya Polymer Chemical Company, Limited
- Chengdu 610500
- People's Republic of China
| | - Yan Liang
- Department of Research & Development
- Sichuan Guangya Polymer Chemical Company, Limited
- Chengdu 610500
- People's Republic of China
| |
Collapse
|
40
|
Heyne B. Self-assembly of organic dyes in supramolecular aggregates. Photochem Photobiol Sci 2016; 15:1103-1114. [DOI: 10.1039/c6pp00221h] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Many scientists probably consider dye aggregation in solution a curse.
Collapse
Affiliation(s)
- Belinda Heyne
- Chemistry Department
- University of Calgary
- 2500 University Drive NW
- Calgary
- Canada T2N 1N4
| |
Collapse
|