1
|
Kundu S, Das S, Jaiswal S, Patra A. Molecular to Supramolecular Self-Assembled Luminogens for Tracking the Intracellular Organelle Dynamics. ACS APPLIED BIO MATERIALS 2022; 5:3623-3648. [PMID: 35834795 DOI: 10.1021/acsabm.2c00415] [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] [Indexed: 11/29/2022]
Abstract
Deciphering the dynamics of intracellular organelles has gained immense attention due to their subtle control over diverse, complex biological processes such as cellular metabolism, energy homeostasis, and autophagy. In this context, molecular materials, including small-organic fluorescent probes and their supramolecular self-assembled nano-/microarchitectures, have been employed to explore the diverse intracellular biological events. However, only a handful of fluorescent probes and self-assembled emissive structures have been successfully used to track different organelle's movements, circumventing the issues related to water solubility and long-term photostability. Thus, the water-soluble molecular fluorescent probes and the water-dispersible supramolecular self-assemblies have emerged as promising candidates to explore the trafficking of the organelles under diverse physiological conditions. In this review, we have delineated the recent progress of fluorescent probes and their supramolecular self-assemblies for the elucidation of the dynamics of diverse cellular organelles with a special emphasis on lysosomes, lipid droplets, and mitochondria. Recent advancement in fluorescence lifetime and super-resolution microscopy imaging has also been discussed to investigate the dynamics of organelles. In addition, the fabrication of the next-generation molecular to supramolecular self-assembled luminogens for probing the variation of microenvironments during the trafficking process has been outlined.
Collapse
Affiliation(s)
- Subhankar Kundu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal By-Pass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Subhadeep Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal By-Pass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Shilpi Jaiswal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal By-Pass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Abhijit Patra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal By-Pass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| |
Collapse
|
2
|
Valdez S, Robertson M, Qiang Z. Fluorescence Resonance Energy Transfer Measurements in Polymer Science: A Review. Macromol Rapid Commun 2022; 43:e2200421. [PMID: 35689335 DOI: 10.1002/marc.202200421] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/06/2022] [Indexed: 12/27/2022]
Abstract
Fluorescence resonance energy transfer (FRET) is a non-invasive characterization method for studying molecular structures and dynamics, providing high spatial resolution at nanometer scale. Over the past decades, FRET-based measurements are developed and widely implemented in synthetic polymer systems for understanding and detecting a variety of nanoscale phenomena, enabling significant advances in polymer science. In this review, the basic principles of fluorescence and FRET are briefly discussed. Several representative research areas are highlighted, where FRET spectroscopy and imaging can be employed to reveal polymer morphology and kinetics. These examples include understanding polymer micelle formation and stability, detecting guest molecule release from polymer host, characterizing supramolecular assembly, imaging composite interfaces, and determining polymer chain conformations and their diffusion kinetics. Finally, a perspective on the opportunities of FRET-based measurements is provided for further allowing their greater contributions in this exciting area.
Collapse
Affiliation(s)
- Sara Valdez
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Mark Robertson
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Zhe Qiang
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| |
Collapse
|
3
|
Ghosh AK, Chowdhury M, Kumar Das P. Nipecotic-Acid-Tethered, Naphthalene-Diimide-Based, Orange-Emitting Organic Nanoparticles as Targeted Delivery Vehicle and Diagnostic Probe toward GABA A-Receptor-Enriched Cancer Cells. ACS APPLIED BIO MATERIALS 2021; 4:7563-7577. [PMID: 35006693 DOI: 10.1021/acsabm.1c00830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
This article demonstrates target-specific cellular imaging of GABA (γ-aminobutyric acid) receptor (GABAAR)-enriched cells (SH-SY5Y and A549) with therapeutic efficacy by naphthalene diimide (NDI)-derived fluorescent organic nanoparticles (FONPs). Self-assembly-driven formation of spherical organic particles by nipecotic-acid-tethered l-aspartic acid appended NDI derivative (NDI-nip) took place in DMSO-water through J-type aggregation. NDI-nip having a naphthyl residue and a nipecotic acid unit at both terminals exhibited aggregation-induced emission (AIE) at and above 60% water content in DMSO because of excimer formation at λem = 579 nm. The orange-emitting NDI-nip FONPs (1:99 v/v DMSO-water) having excellent cell viability and high photostability were used for selective bioimaging and killing of GABAAR-overexpressed cancer cells through target-specific delivery of the anticancer drug curcumin. The fluorescence intensity of NDI-nip FONPs were quenched in GABAAR-enriched neuroblastoma cells (SH-SY5Y) and cancerous cells (A549). Notably, in the presence of GABA, the NDI-nip FONPs exhibited their native fluorescence within the same cell lines. Importantly, no such quenching and regaining of NDI-nip FONP emission in the presence of GABA was noted in the case of the noncancerous cell NIH3T3. The killing efficiency of curcumin-loaded NDI-nip FONPs ([curcumin] = 100 μM and [NDI-nip FONPs] = 50 μM) was significantly higher in the cases of SH-SY5Y (88 ± 3%) and A549 (72 ± 2%) than in NIH3T3 (37 ± 2). The presence of a nipecotic acid moiety facilitated the selective cellular internalization of NDI-nip FONPs into GABAAR-overexpressing cells. Hence, these orange-emitting NDI-nip FONPs may be exploited as a targeted diagnostic probe as well as a drug delivery vehicle for GABAAR-enriched cancer cells.
Collapse
Affiliation(s)
- Anup Kumar Ghosh
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
| | - Monalisa Chowdhury
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
| | - Prasanta Kumar Das
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
| |
Collapse
|
4
|
Chakraborty D, Sarkar D, Ghosh AK, Das PK. Lipase sensing by naphthalene diimide based fluorescent organic nanoparticles: a solvent induced manifestation of self-assembly. SOFT MATTER 2021; 17:2170-2180. [PMID: 33448273 DOI: 10.1039/d0sm02056g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The precise control of supramolecular self-assembly is gaining utmost interest for the demanding applications of manifested nano-architecture across the scientific domain. This study delineates the morphological transformation of naphthalene diimide (NDI) derived amphiphiles with varying water content in dimethyl sulfoxide (DMSO) and the selective sensing of lipase using its aggregation-induced emission (AIE) properties. To this end, NDI-based, benzyl alcohol protected alkyl chain (C1, C5, and C10) linked amphiphilic molecules (NDI-1,2,3) were synthesized. Among the synthesized amphiphiles, benzyl ester linked C5 tailored naphthalene diimide (NDI-2) exhibited AIE with an emission maximum at 490 nm in a DMSO-water binary solvent system from fw = 30% and above water content. The fibrous morphology of NDI-2 at fw = 30% got gradually transformed to spherical aggregated particles along with steady increment in the emission intensity upon increasing the amount of water in DMSO. At fw = 99% water in DMSO, complete transformation to fluorescent organic nanoparticles (FONPs) was observed. Microscopic and spectroscopic techniques demonstrated the solvent driven morphological transformation and the AIE property of NDI-2. Moreover, this AIE of NDI-2 FONPs was employed in the selective turn-off sensing of lipase against many other enzymes including esterase, through hydrolysis of a benzyl ester linkage with a limit of detection 10.0 ± 0.8 μg L-1. The NDI-2 FONP also exhibited its lipase sensing efficiency in vitro using a human serum sample.
Collapse
Affiliation(s)
- Debayan Chakraborty
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata - 700032, India.
| | - Deblina Sarkar
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata - 700032, India.
| | - Anup Kumar Ghosh
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata - 700032, India.
| | - Prasanta Kumar Das
- School of Biological Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata - 700032, India.
| |
Collapse
|
5
|
Sarkar D, Chowdhury M, Das PK. Naphthalimide based fluorescent organic nanoparticles in selective sensing of Fe 3+ and as a diagnostic probe for Fe 2+/Fe 3+ transition. J Mater Chem B 2020; 9:494-507. [PMID: 33300911 DOI: 10.1039/d0tb02450c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Fluorescent organic nanoparticles (FONPs) have attracted considerable attention as a practical and effective platform for sensing and imaging applications. The present article delineates the fabrication of FONPs derived from the naphthalimide based histidine appended amphiphile, NID. The self-assembly of NID in 99 vol% water in DMSO led to the formation of FONPs through J-type aggregation. Aggregation-induced emission (AIE) was observed due to the pre-associated excimer of NID with bluish green emission at 470 nm along with intramolecular charge transfer (ICT). The emission of NID FONPs was utilized for selective sensing of Fe3+ and bioimaging of Fe3+ inside mammalian cells. The fluorescence intensity of the FONPs was quenched with the gradual addition of Fe3+ due to the formation of a 1 : 1 stoichiometric complex with the histidine residue of NID. The morphology of the FONPs transformed from spherical to spindle upon the complex formation of NID with Fe3+. The limit of detection (LOD) of this AIE based turn-off chemosensor for Fe3+ was found to be 12.5 ± 1.2 μM having high selectivity over other metal ions. On the basis of the very low cytotoxicity and selective sensing of Fe3+, NID FONPs were successfully employed for bioimaging of Fe3+ ions through fluorescence quenching within mammalian cells (NIH3T3, B16F10). Considering the varying oxidative stress inside different cells, NID FONPs were used for detecting Fe2+ to Fe3+ redox state transition selectively inside cancer cells (B16F10) in comparison to non-cancerous cells (NIH3T3). Selective sensing of cancer cells was substantiated by co-culture experiment and flow cytometry. Hence, NID FONPs can be a selective diagnostic probe for cancer cells owing to their higher H2O2 content.
Collapse
Affiliation(s)
- Deblina Sarkar
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700032, India.
| | - Monalisa Chowdhury
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700032, India.
| | - Prasanta Kumar Das
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata - 700032, India.
| |
Collapse
|
6
|
Hoang S, Olivier S, Cuenot S, Montillet A, Bellettre J, Ishow E. Microfluidic Assisted Flash Precipitation of Photocrosslinkable Fluorescent Organic Nanoparticles for Fine Size Tuning and Enhanced Photoinduced Processes. Chemphyschem 2020; 21:2502-2515. [PMID: 33073929 DOI: 10.1002/cphc.202000633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/27/2020] [Indexed: 01/05/2023]
Abstract
Highly concentrated dispersions of fluorescent organic nanoparticles (FONs), broadly used for optical tracking, bioimaging and drug delivery monitoring, are obtained using a newly designed micromixer chamber involving high impacting flows. Fine size tuning and narrow size distributions are easily obtained by varying independently the flow rates of the injected fluids and the concentration of the dye stock solution. The flash nanoprecipitation process employed herein is successfully applied to the fabrication of bicomposite FONs designed to allow energy transfer. Considerable enhancement of the emission signal of the energy acceptors is promoted and its origin is found to result from polarity rather than steric effects. Finally, we exploit the high spatial confinement encountered in FONs and their ability to encapsulate hydrophobic photosensitizers to induce photocrosslinking. An increase in the photocrosslinked FON stiffness is evidenced by measuring the elastic modulus at the nanoscale using atomic force microscopy. These results pave the way toward the straightforward fabrication of multifunctional and mechanically photoswitchable FONs, opening novel opportunities in sensing, multimodal imaging, and theranostics.
Collapse
Affiliation(s)
- Stéphane Hoang
- CEISAM-UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, 44322, Nantes, France
| | - Simon Olivier
- CEISAM-UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, 44322, Nantes, France.,Current address: Air Liquide, Air Liquide Facility, 28 Wadai, Tsukuba, Ibaraki, 300-4247, Japan
| | - Stéphane Cuenot
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000, Nantes, France
| | - Agnès Montillet
- GEPEA UMR CNRS 6144, IUT Saint Nazaire, Université de Nantes, 58 rue Michel Ange, 44600, Saint Nazaire, France
| | - Jérôme Bellettre
- LTeN UMR CNRS 6607, Polytech Nantes, Université de Nantes, rue Christian Pauc, 44306, Nantes, France
| | - Eléna Ishow
- CEISAM-UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, 44322, Nantes, France
| |
Collapse
|
7
|
Gupta D, Sasmal R, Singh A, Joseph JP, Miglani C, Agasti SS, Pal A. Enzyme-responsive chiral self-sorting in amyloid-inspired minimalistic peptide amphiphiles. NANOSCALE 2020; 12:18692-18700. [PMID: 32970093 DOI: 10.1039/d0nr04581k] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Self-sorting is a spontaneous phenomenon that ensures the formation of complex yet ordered multicomponent systems and conceptualizes the design of artificial and orthogonally functional compartments. In the present study, we envisage chirality-mediated self-sorting in β-amyloid-inspired minimalistic peptide amphiphile (C10-l/d-VFFAKK)-based nanofibers. The fidelity and stereoselectivity of chiral self-sorting was ascertained by Förster resonance energy transfer (FRET) by the judicious choice of a pyrene (Py)-hydroxy coumarin (HOCou) donor-acceptor pair tethered to the peptide sequences. Seed-promoted elongation of the homochiral peptide amphiphiles investigated by AFM image analyses and Thioflavin-T (ThT) binding study further validated the chiral recognition of the l/d peptide nanofibers. Moreover, direct visualization of the chirality-driven self-sorted nanofibers is reported using super-resolution microscopy that exhibits enantioselective enzymatic degradation for l-peptide fibers. Such enantioselective weakening of the hydrogels may be used for designing stimuli-responsive orthogonal compartments for delivery applications.
Collapse
Affiliation(s)
- Deepika Gupta
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 64, Mohali, Punjab 160062, India.
| | - Ranjan Sasmal
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Ashmeet Singh
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 64, Mohali, Punjab 160062, India.
| | - Jojo P Joseph
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 64, Mohali, Punjab 160062, India.
| | - Chirag Miglani
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 64, Mohali, Punjab 160062, India.
| | - Sarit S Agasti
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Asish Pal
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 64, Mohali, Punjab 160062, India.
| |
Collapse
|
8
|
Sasselli IR, Syrgiannis Z. Small Molecules Organic Co‐Assemblies as Functional Nanomaterials. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ivan R. Sasselli
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE) Basque Research and Technology Alliance (BRTA) Paseo de Miramon 182 20014 Donostia San Sebastián Spain
| | - Zois Syrgiannis
- Centre of Excellence for Nanostructured Materials (CENMAT) INSTM, unit of Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche Università di Trieste via L. Giorgieri 1 34127 Trieste Italy
- Simpson Querrey Institute Northwestern University 303 East Superior Street 60611 Chicago IL USA
| |
Collapse
|
9
|
Schill J, Ferrazzano L, Tolomelli A, Schenning APHJ, Brunsveld L. Fluorene benzothiadiazole co-oligomer based aqueous self-assembled nanoparticles. RSC Adv 2020; 10:444-450. [PMID: 35492532 PMCID: PMC9047964 DOI: 10.1039/c9ra09015k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/16/2019] [Indexed: 12/16/2022] Open
Abstract
Self-assembled π-conjugated nanoparticles with tunable optical characteristics are appealing for sensing and imaging applications due to their intrinsic fluorescence, supramolecular organization and dynamics.
Collapse
Affiliation(s)
- J. Schill
- Laboratory of Chemical Biology
- Department of Biomedical Engineering and Institute for Complex Molecular Systems Eindhoven University of Technology
- 5600MB Eindhoven
- The Netherlands
| | - L. Ferrazzano
- Department of Chemistry
- University of Bologna
- 40126 Bologna
- Italy
| | - A. Tolomelli
- Department of Chemistry
- University of Bologna
- 40126 Bologna
- Italy
| | - A. P. H. J. Schenning
- Functional Organic Materials and Devices
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- Eindhoven
- The Netherlands
| | - L. Brunsveld
- Laboratory of Chemical Biology
- Department of Biomedical Engineering and Institute for Complex Molecular Systems Eindhoven University of Technology
- 5600MB Eindhoven
- The Netherlands
| |
Collapse
|
10
|
Li Z, Han Y, Wang F. Compartmentalization-induced phosphorescent emission enhancement and triplet energy transfer in aqueous medium. Nat Commun 2019; 10:3735. [PMID: 31427582 PMCID: PMC6700130 DOI: 10.1038/s41467-019-11650-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/22/2019] [Indexed: 01/20/2023] Open
Abstract
Triplet energy transfer occurs frequently in natural photosynthetic organisms to protect against photo-oxidative stress. For artificial light-harvesting systems, several challenges need to be addressed to realize triplet energy transfer especially in aqueous medium. Specifically, the phosphors should be shielded from water and molecular oxygen, which facilitate to maintain intense emission intensity. Moreover, the donor‒acceptor phosphors should be organized in close proximity, yet simultaneously avoiding direct homo- and hetero-interactions to minimize the potential energy losses. Herein an effective strategy has been developed to meet these requirements, by employing a rod-coil amphiphile as the compartmentalized agent. It renders synergistic rigidifying and hydrophobic shielding effects, giving rise to enhanced phosphorescent emission of the platinum(II) complexes in aqueous environment. More importantly, the donor‒acceptor platinum(II) phosphors feature ordered spatial organization in the ternary co-assembled system, resulting in high light-harvesting efficiency. Therefore, the compartmentalization strategy represents an efficient approach toward color-tunable phosphorescent nanomaterials.
Collapse
Affiliation(s)
- Zijian Li
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, 230026, Hefei, Anhui, P. R. China
| | - Yifei Han
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, 230026, Hefei, Anhui, P. R. China
| | - Feng Wang
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, 230026, Hefei, Anhui, P. R. China.
| |
Collapse
|
11
|
Choudhury P, Das PK. Carbon Dots-Stimulated Amplification of Aggregation-Induced Emission of Size-Tunable Organic Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10582-10595. [PMID: 31329455 DOI: 10.1021/acs.langmuir.9b01631] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Carbon dots (CDs)-induced microstructural modulation and amplification of emission intensity of self-aggregated fluorescent organic nanoparticles (FONPs) is a challenging task since CD is a well-known fluorescence quencher. In the present study, we have designed l-tyrosine-tagged hydrophobically (C-10) tailored naphthalene diimide derivative (NDI-i), which formed FONPs in tetrahydrofuran (THF)-water binary solvent mixture. NDI-i exhibited aggregation-induced emission (AIE) at 580 nm (orange) up to fw = 70 vol % of water in THF via excimer formation in combination with intramolecular charge transfer (ICT) upon excitation at 350 nm. Beyond fw = 70 vol %, the emission intensity gradually reduced up to fw = 99 vol % due to poor water dispersibility of NDI-i FONPs. Doping of hydrophobically (C-2 to C-11 alkyl chain) surface-functionalized CDs (CD-i-iii) within self-aggregates of NDI-i FONPs at fw = 99 vol % resulted in the modulation of both morphology and emission intensity of resulting self-assembled nanoconjugate. In the presence of C-2 alkyl chain tethered CD, the emission intensity of FONP-CD nanohybrid got quenched compared to that of native NDI-i FONPs. The emission intensity of NDI-i FONPs markedly enhanced by 3.6- to 5.0-fold upon inclusion of C-6 and C-11 alkyl chain containing CDs, respectively. Increasing the alkyl chain length on CD surface facilitated the interchain hydrophobic interaction between the organic nanoparticles and surface-functionalized CDs to form larger CD-doped fused FONPs. The extent of ICT between π-donor and π-acceptor residues became more efficient to exhibit enhanced AIE due to the accumulation of more NDI-i around CD surface through interchain hydrophobic interaction. The C-11 alkyl chain containing CD-integrated FONPs showed the brightest orange emission with superior aqueous stability. These water-dispersible, orange-emitting, cytocompatible NDI-i-CD-iii FONPs were explored for long-term bioimaging of mammalian cells.
Collapse
Affiliation(s)
- Pritam Choudhury
- School of Biological Sciences , Indian Association for the Cultivation of Science Jadavpur , Kolkata 700032 , India
| | - Prasanta Kumar Das
- School of Biological Sciences , Indian Association for the Cultivation of Science Jadavpur , Kolkata 700032 , India
| |
Collapse
|
12
|
van Onzen AAM, Rossin R, Schenning APH, Nicolay K, Milroy LG, Robillard MS, Brunsveld L. Tetrazine- trans-Cyclooctene Chemistry Applied to Fabricate Self-Assembled Fluorescent and Radioactive Nanoparticles for in Vivo Dual Mode Imaging. Bioconjug Chem 2019; 30:547-551. [PMID: 30731039 PMCID: PMC6429424 DOI: 10.1021/acs.bioconjchem.9b00038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/06/2019] [Indexed: 01/05/2023]
Abstract
Multimodal imaging agents combine two or more imaging modalities into one probe. Self-assembling fluorescent nanoparticles are a promising class of modular multimodal imaging probes as they can allow easy blending of imaging and targeting modalities. Our group recently developed a class of self-assembling and intrinsically fluorescent small molecule-based nanoparticles (SMNPs) with excellent optical properties. In this article, we describe the efficient radiolabeling of these SMNPs via a two-step bioconjugation strategy involving the inverse-electron-demand Diels-Alder ligation between a tetrazine (Tz)-tagged radiolabel and a trans-cyclooctene (TCO)-tagged fluorescent small molecule building block of the SMNPs. Studies in mice revealed that the SMNPs are well tolerated and could be monitored by both radioactivity and fluorescence, thereby demonstrating the potential of SMNPs in optical and dual-mode imaging in vivo. The work also testifies to the utility of the Tz-TCO conjugation chemistry for the labeling of self-assembled nanoparticles.
Collapse
Affiliation(s)
- Arthur
H. A. M. van Onzen
- Laboratory
of Chemical Biology, Department of Biomedical Engineering and Institute
for Complex Molecular Systems (ICMS), Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Raffaella Rossin
- Tagworks
Pharmaceuticals, c/o Radboud University Medical Center, Department of Nuclear Medicine and Radiology, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Albertus P. H.
J. Schenning
- Stimuli-responsive
Functional Materials and Devices and Institute for Complex Molecular
Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Klaas Nicolay
- Biomedical
NMR, Department of Biomedical Engineering, Eindhoven University of Technology,
P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Lech-Gustav Milroy
- Laboratory
of Chemical Biology, Department of Biomedical Engineering and Institute
for Complex Molecular Systems (ICMS), Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Marc S. Robillard
- Tagworks
Pharmaceuticals, c/o Radboud University Medical Center, Department of Nuclear Medicine and Radiology, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Luc Brunsveld
- Laboratory
of Chemical Biology, Department of Biomedical Engineering and Institute
for Complex Molecular Systems (ICMS), Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| |
Collapse
|
13
|
Svechkarev D, Mohs AM. Organic Fluorescent Dye-based Nanomaterials: Advances in the Rational Design for Imaging and Sensing Applications. Curr Med Chem 2019; 26:4042-4064. [PMID: 29484973 PMCID: PMC6703954 DOI: 10.2174/0929867325666180226111716] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 12/08/2017] [Accepted: 12/13/2017] [Indexed: 12/28/2022]
Abstract
Self-assembled fluorescent nanomaterials based on small-molecule organic dyes are gaining increasing popularity in imaging and sensing applications over the past decade. This is primarily due to their ability to combine spectral properties tunability and biocompatibility of small molecule organic fluorophores with brightness, chemical and colloidal stability of inorganic materials. Such a unique combination of features comes with rich versatility of dye-based nanomaterials: from aggregates of small molecules to sophisticated core-shell nanoarchitectures involving hyperbranched polymers. Along with the ongoing discovery of new materials and better ways of their synthesis, it is very important to continue systematic studies of fundamental factors that regulate the key properties of fluorescent nanomaterials: their size, polydispersity, colloidal stability, chemical stability, absorption and emission maxima, biocompatibility, and interactions with biological interfaces. In this review, we focus on the systematic description of various types of organic fluorescent nanomaterials, approaches to their synthesis, and ways to optimize and control their characteristics. The discussion is built on examples from reports on recent advances in the design and applications of such materials. Conclusions made from this analysis allow a perspective on future development of fluorescent nanomaterials design for biomedical and related applications.
Collapse
Affiliation(s)
- Denis Svechkarev
- University of Nebraska Medical Center, Department of Pharmaceutical Sciences, Fred and Pamela Buffett Cancer Center, Omaha, United States
| | - Aaron M. Mohs
- University of Nebraska Medical Center, Department of Pharmaceutical Sciences, Fred and Pamela Buffett Cancer Center, Omaha, United States
| |
Collapse
|
14
|
Rajdev P, Ghosh S. Fluorescence Resonance Energy Transfer (FRET): A Powerful Tool for Probing Amphiphilic Polymer Aggregates and Supramolecular Polymers. J Phys Chem B 2018; 123:327-342. [PMID: 30407823 DOI: 10.1021/acs.jpcb.8b09441] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This Review Article highlights the utility of the fluorescence resonance energy transfer (FRET) to probe the dynamics and related issues in amphiphilic polymeric aggregates and supramolecular polymers. Amphiphilic polymers are more attractive compared to their small molecule analogues because they exhibit significantly lower critical aggregation concentration, relatively larger particle size (suitable for the enhanced permeation and retention effect), and a much slower dynamics of exchange between the unimer and the aggregate. Representative examples of exchange dynamics in amphiphilic polymer aggregates and their noncovalent encapsulation stability as a function of the structure of the macromolecule, cross-linking, environmental parameters, and biological conditions, as probed by FRET studies, have been included in this article. Further, related observations on the utility of FRET in studying the exchange dynamics in supramolecular polymers, particularly in aqueous medium, have been discussed at length, revealing a strong impact of chirality, side chain polarity, and other parameters. Overall, this Review Article brings out the strength of this technique to probe dynamics of aggregates and assembled systems, mostly in water medium, which has a paramount importance in designing future biomaterials.
Collapse
|
15
|
Yin H, Zhang K, Wang L, Zhou K, Zeng J, Gao D, Xia Z, Fu Q. Redox modulation of polydopamine surface chemistry: a facile strategy to enhance the intrinsic fluorescence of polydopamine nanoparticles for sensitive and selective detection of Fe 3. NANOSCALE 2018; 10:18064-18073. [PMID: 30229779 DOI: 10.1039/c8nr05878d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In recent years, polydopamine (PDA) nanoparticles have attracted considerable attention in different research fields because of their many fascinating physicochemical properties. However, as an analogue of naturally occurring melanin, PDA nanoparticles (PDANPs) typically exhibit weak fluorescence properties. Herein, we report a facile one-pot method for synthesizing bright blue luminescent PDANPs through the redox modulation of PDA surface chemistry. The composition and morphology of the resultant NPs were systematically characterized by transmission electron microscopy and several spectroscopy methods, which verified the successful fabrication of PDANPs. More importantly, comparative chemical analysis of dopamine polymerization revealed the significant impacts of synthesis conditions and PDA surface chemistry on the luminescence properties of PDANPs. Remarkably, in addition to their excellent water-solubility, salt-tolerance and high photostability under extreme pH conditions, the as-prepared PDANPs possess the highest quantum yield (5.1%) among all the reported intrinsic fluorescent PDANPs. Moreover, based on the coordination interaction between phenolic hydroxyl groups of PDANPs and ferric ions (Fe3+), the synthesized PDANPs were successfully utilized as a turn-off sensing platform for sensitive and selective detection of Fe3+ without using any additional targeting molecules. Upon increasing the Fe3+ concentration in the range from 0.5 to 20 μM, the fluorescence intensity of PDANPs decreased linearly. The detection limit of Fe3+ was 0.15 μM. Finally, this fluorescent sensor was successfully used to determine Fe3+ in natural water samples, showing good prospects for practical applications and may pave the way for the development of new rational methodologies for further enhancing the intrinsic fluorescence of PDA and fabricating other novel fluorescent organic nanoparticles.
Collapse
Affiliation(s)
- Honggang Yin
- School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Gao Z, Li Z, Gao Z, Wang F. Supramolecular alternate donor-acceptor copolymers mediated by PtPt metal-metal interactions and their photocatalytic applications. NANOSCALE 2018; 10:14005-14011. [PMID: 29995057 DOI: 10.1039/c8nr03739f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Precise arrangement of the aromatic donor-acceptor units is of paramount importance to dictate the performance of multi-component π-functional materials. Herein a novel strategy has been developed toward alternate donor-acceptor copolymers, by incorporating Pt(ii)Pt(ii) metal-metal interactions for the hetero-complexation process. The proximity of Pt atoms endows the resulting supramolecular copolymers with metal-metal-to-ligand charge-transfer transitions in the visible/NIR region. The signals have been further applied for low-energy visible-light photo-catalysis that is unattainable for the individual species. More interestingly, "on-demand" photo-catalytic efficiency can be achieved by manipulating the reversibility of the supramolecular copolymerization process. Hence, the current work demonstrates the efficiency of fabricating multi-component π-functional materials via the elaborate manipulation of non-covalent driving forces.
Collapse
Affiliation(s)
- Zhao Gao
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
| | - Zijian Li
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
| | - Zongchun Gao
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
| | - Feng Wang
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
| |
Collapse
|
17
|
Song X, Yu H, Zhang Y, Miao Y, Ye K, Wang Y. Controllable morphology and self-assembly of one-dimensional luminescent crystals based on alkyl-fluoro-substituted dithienophenazines. CrystEngComm 2018. [DOI: 10.1039/c8ce00021b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A class of dithienophenazine derivatives, 9,10-difluoro-2,5-dialkyldithieno[3,2-a:2′,3′-c]phenazine (F-n, n = 4, 5, 6, 7 and 8), modified with various lengths of linear alkyl chains were synthesized and used as building blocks to assemble luminescent one-dimensional (1D) nano/microcrystals.
Collapse
Affiliation(s)
- Xiaoxian Song
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Hanbo Yu
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Yuewei Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Yang Miao
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Kaiqi Ye
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Yue Wang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| |
Collapse
|
18
|
Xing P, Tham HP, Li P, Chen H, Xiang H, Zhao Y. Environment-Adaptive Coassembly/Self-Sorting and Stimulus-Responsiveness Transfer Based on Cholesterol Building Blocks. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700552. [PMID: 29375976 PMCID: PMC5770671 DOI: 10.1002/advs.201700552] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/20/2017] [Indexed: 05/20/2023]
Abstract
Manipulating the property transfer in nanosystems is a challenging task since it requires switchable molecular packing such as separate aggregation (self-sorting) or synergistic aggregation (coassembly). Herein, a unique manipulation of self-sorting/coassembly aggregation and the observation of switchable stimulus-responsiveness transfer in a two component self-assembly system are reported. Two building blocks bearing the same cholesterol group give versatile topological structures in polar and nonpolar solvents. One building block (cholesterol conjugated cynanostilbene, CCS) consists of cholesterol conjugated with a cynanostilbene unit, and the other one (C10CN) is comprised of cholesterol connected with a naphthalimide group having a flexible long alkyl chain. Their assemblies including gel, crystalline plates, and vesicles are obtained. In gel and crystalline plate phases, the self-sorting behavior dominates, while synergistic coassembly occurs in vesicle phase. Since CCS having the cyanostilbene group can respond to the light irradiation, it undergoes light-induced chiral amplification. C10CN is thermally responsive, whereby its supramolecular chirality is inversed upon heating. In coassembled vesicles, it is interestingly observed that their responsiveness can be transferred by each other, i.e., the C10CN segment is sensitive to the light irradiation, while CCS is thermoresponsive. This unprecedented behavior of the property transfer may shine a light to the precise fabrication of smart materials.
Collapse
Affiliation(s)
- Pengyao Xing
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371SingaporeSingapore
| | - Huijun Phoebe Tham
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371SingaporeSingapore
| | - Peizhou Li
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371SingaporeSingapore
| | - Hongzhong Chen
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371SingaporeSingapore
| | - Huijing Xiang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371SingaporeSingapore
| | - Yanli Zhao
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371SingaporeSingapore
- School of Materials Science and EngineeringNanyang Technological University50 Nanyang Avenue639798SingaporeSingapore
| |
Collapse
|
19
|
Sarkar A, Dhiman S, Chalishazar A, George SJ. Visualization of Stereoselective Supramolecular Polymers by Chirality-Controlled Energy Transfer. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708267] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Aritra Sarkar
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| | - Shikha Dhiman
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| | - Aditya Chalishazar
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| | - Subi J. George
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| |
Collapse
|
20
|
Sarkar A, Dhiman S, Chalishazar A, George SJ. Visualization of Stereoselective Supramolecular Polymers by Chirality-Controlled Energy Transfer. Angew Chem Int Ed Engl 2017; 56:13767-13771. [DOI: 10.1002/anie.201708267] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Aritra Sarkar
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| | - Shikha Dhiman
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| | - Aditya Chalishazar
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| | - Subi J. George
- Supramolecular Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); Jakkur Bangalore 560064 India
| |
Collapse
|
21
|
Ji M, Dawadi MB, LaSalla AR, Sun Y, Modarelli DA, Parquette JR. Strategy for the Co-Assembly of Co-Axial Nanotube-Polymer Hybrids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9129-9136. [PMID: 28805395 DOI: 10.1021/acs.langmuir.7b02245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanostructured materials having multiple, discrete domains of sorted components are particularly important to create efficient optoelectronics. The construction of multicomponent nanostructures from self-assembled components is exceptionally challenging due to the propensity of noncovalent materials to undergo structural reorganization in the presence of excipient polymers. This work demonstrates that polymer-nanotube composites comprised of a self-assembled nanotube wrapped with two conjugated polymers could be assembled using a layer-by-layer approach. The polymer-nanotube nanostructures arrange polymer layers coaxially on the nanotube surface. Femtosecond transient absorption (TA) studies indicated that the polymer-nanotube composites undergo photoinduced charge separation upon excitation of the NDI chromophore within the nanotube.
Collapse
Affiliation(s)
- Mingyang Ji
- Department of Chemistry, The Ohio State University , 100 W. 18th Avenue Columbus, Ohio 43210, United States
| | - Mahesh B Dawadi
- Department of Chemistry and The Center for Laser and Optical Spectroscopy, Knight Chemical Laboratory, The University of Akron , Akron, Ohio 44325-3601, United States
| | - Alexandria R LaSalla
- Department of Chemistry, The Ohio State University , 100 W. 18th Avenue Columbus, Ohio 43210, United States
| | - Yuan Sun
- Department of Chemistry, The Ohio State University , 100 W. 18th Avenue Columbus, Ohio 43210, United States
| | - David A Modarelli
- Department of Chemistry and The Center for Laser and Optical Spectroscopy, Knight Chemical Laboratory, The University of Akron , Akron, Ohio 44325-3601, United States
| | - Jon R Parquette
- Department of Chemistry, The Ohio State University , 100 W. 18th Avenue Columbus, Ohio 43210, United States
| |
Collapse
|
22
|
Schill J, Milroy LG, Lugger JAM, Schenning APHJ, Brunsveld L. Relationship between Side-Chain Polarity and the Self-Assembly Characteristics of Perylene Diimide Derivatives in Aqueous Solution. ChemistryOpen 2017; 6:266-272. [PMID: 28413763 PMCID: PMC5390792 DOI: 10.1002/open.201600133] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/03/2017] [Indexed: 11/09/2022] Open
Abstract
Perylene-3,4,9,10-tetracarboxylic acid diimides (PDIs) have recently gained considerable interest for water-based biosensing applications. PDIs have been studied intensively in the bulk state, but their physical properties in aqueous solution in interplay with side-chain polarity are, however, poorly understood. Therefore, three perylene diimide based derivatives were synthesized to study the relationship between side-chain polarity and their self-assembly characteristics in water. The polarity of the side chains was found to dictate the size and morphology of the formed aggregates. Side-chain polarity rendered the self-assembly and photophysical properties of the PDIs-both important for imminent water-based applications-and these were revealed to be especially responsive to changes in solvent composition.
Collapse
Affiliation(s)
- Jurgen Schill
- Laboratory of Chemical Biology Department of Biomedical Engineering and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Lech-Gustav Milroy
- Laboratory of Chemical Biology Department of Biomedical Engineering and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jody A M Lugger
- Macromolecular and Organic Chemistry and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Albertus P H J Schenning
- Functional Organic Materials and Devices and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical Biology Department of Biomedical Engineering and Institute of Complex Molecular Systems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| |
Collapse
|
23
|
van Onzen AHAM, Albertazzi L, Schenning APHJ, Milroy LG, Brunsveld L. Hydrophobicity determines the fate of self-assembled fluorescent nanoparticles in cells. Chem Commun (Camb) 2017; 53:1626-1629. [PMID: 28097276 DOI: 10.1039/c6cc08793k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The fate of small molecule nanoparticles (SMNPs) composed of self-assembling intrinsically fluorescent π-conjugated oligomers was studied in cells as a function of side-chain hydrophobicity. While the hydrophobic SMNPs remained intact upon cellular uptake, the more hydrophilic SMNPs disassembled and dispersed throughout the cytosol.
Collapse
Affiliation(s)
- Arthur H A M van Onzen
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands.
| | - Lorenzo Albertazzi
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands. and Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona, 08028, Spain
| | - Albertus P H J Schenning
- Laboratory of Functional Organic Materials and Devices, Department of Chemical Engineering and Chemistry and Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands
| | - Lech-Gustav Milroy
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands.
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands.
| |
Collapse
|
24
|
Xu J, Takai A, Takeuchi M. Red-Green-Blue Trichromophoric Nanoparticles with Dual Fluorescence Resonance Energy Transfer: Highly Sensitive Fluorogenic Response Toward Polyanions. Chemistry 2016; 22:13014-8. [DOI: 10.1002/chem.201602759] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jinjia Xu
- Molecular Design & Function Group; National Institute for Materials Science (NIMS); 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
- Department of Materials Science and Engineering; Graduate School of Pure and Applied Science; University of Tsukuba; 1-1-1, Tennoudai Tsukuba Ibaraki 305-8571 Japan
| | - Atsuro Takai
- Molecular Design & Function Group; National Institute for Materials Science (NIMS); 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
| | - Masayuki Takeuchi
- Molecular Design & Function Group; National Institute for Materials Science (NIMS); 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
- Department of Materials Science and Engineering; Graduate School of Pure and Applied Science; University of Tsukuba; 1-1-1, Tennoudai Tsukuba Ibaraki 305-8571 Japan
| |
Collapse
|
25
|
Feng L, Zhu J, Wang Z. Biological Functionalization of Conjugated Polymer Nanoparticles for Targeted Imaging and Photodynamic Killing of Tumor Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19364-19370. [PMID: 27406913 DOI: 10.1021/acsami.6b06642] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Conjugated polymer nanoparticles composed of PFT/PS as a core and PEG-COOH on the surface were prepared by a reprecipitating method. The CPNs diaplay excellet properties such as good photostability, low cytotoxicity, and strong brightness, etc. The average diamater of CPNs is 30 nm with a spherical morphology. To realize specific imaging in different parts of tumor cells, the bare CPNs with the carboxyls on the surface were conjugated with antibody or peptide by a covalent mode. Studies display that CPNs modified with anti-EpCAM can recognize MCF-7 tumor cells and locate on the membrane, while CPNs conjugated with transcriptional activator protein (Tat) specifically locate in the cytoplasm of MCF-7 cells. On the basis of the ability of CPNs for producing reactive oxygen species (ROS) under light irradiation, photodynamic therapy for tumor cells was investigated. Due to the long distance and wide diffusion range, MCF-7 tumor cells with CPNs/anti-EpCAM have no obvious change with or without white light irradiation. However, CPNs/Tat exhibits higher killing ability for MCF-7 cells. Noticeably, multifunctional CPNs linked with anti-EpCAM and Tat simultaneously not only can specifically target MCF-7 tumor cells, but also may inhibit and kill these cells. This work develops a potential application platform for multifunctional CPNs in locating imaging, photodynamic therapy, and other aspects.
Collapse
Affiliation(s)
- Liheng Feng
- School of Chemistry and Chemical Engineering, Shanxi University , Taiyuan 030006, P. R. China
| | - Jiarong Zhu
- School of Chemistry and Chemical Engineering, Shanxi University , Taiyuan 030006, P. R. China
| | - Zhijun Wang
- Department of Chemistry, Changzhi University , Changzhi 046011, P. R. China
| |
Collapse
|
26
|
Malakar A, Kumar M, Reddy A, Biswal HT, Mandal BB, Krishnamoorthy G. Aggregation induced enhanced emission of 2-(2'-hydroxyphenyl)benzimidazole. Photochem Photobiol Sci 2016; 15:937-48. [PMID: 27334264 DOI: 10.1039/c6pp00122j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study, the aggregation induced emission enhancement (AIEE) of 2-(2'-hydroxyphenyl)benzimidazole (HPBI) is reported. To investigate the AIEE process of HPBI, absorption/fluorescence spectroscopy, fluorescence imaging and field emission scanning electron microscopy were employed. A comparative study with 2-phenylbenzimidazole (PBI) divulges the significance of the hydroxyl group in the AIEE process. Further, molecular dynamics simulations have been carried out with explicit solvent molecules to follow the aggregation process of HPBI with time. The obtained molecular dynamics simulation results not only predicted the formation of aggregates but also provided detailed insight and information on the molecular interactions. The cellular studies showed aggregates yield higher fluorescence in the visible region inside HeLa cells in comparison to monomeric compounds which failed to exhibit any visible fluorescence inside the cell. The obtained aggregates were further found to be biocompatible and therefore can be used for bio-imaging applications.
Collapse
Affiliation(s)
- Ashim Malakar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Manishekhar Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anki Reddy
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Himadree T Biswal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Biman B Mandal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - G Krishnamoorthy
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| |
Collapse
|
27
|
Shulov I, Arntz Y, Mély Y, Pivovarenko VG, Klymchenko AS. Non-coordinating anions assemble cyanine amphiphiles into ultra-small fluorescent nanoparticles. Chem Commun (Camb) 2016; 52:7962-5. [PMID: 27251475 DOI: 10.1039/c6cc03716j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A non-coordinating anion, fluorinated tetraphenylborate, assembles specially designed cationic cyanine amphiphiles into 7-8 nm fluorescent nanoparticles that are >40-fold brighter than a single cyanine dye. This kind of anion, combining hydrophobic and electrostatic forces in aqueous media, constitutes promising building blocks in the self-assembly of functional nanomaterials.
Collapse
Affiliation(s)
- Ievgen Shulov
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France.
| | | | | | | | | |
Collapse
|
28
|
Gao ZF, Li TT, Xu XL, Liu YY, Luo HQ, Li NB. Green light-emitting polyepinephrine-based fluorescent organic dots and its application in intracellular metal ions sensing. Biosens Bioelectron 2016; 83:134-41. [PMID: 27108256 DOI: 10.1016/j.bios.2016.04.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/31/2016] [Accepted: 04/14/2016] [Indexed: 10/21/2022]
Abstract
In this paper, we present a class of bio-dots, polyepinephrine (PEP)-based fluorescent organic dots (PEP-FODs) for selective and sensitive detection of Fe(2+), Fe(3+), and Cu(2+). The PEP-FODs were derived from epinephrine via self-polymerization at relatively low temperature down to 60°C with low cytotoxicity and relative long lifetime (7.24ns). The surface morphology and optical properties of the synthesized PEP-FODs were characterized. We found that the diameters of PEP-FODs were mainly distributed in the narrow range of 2-4nm with an average diameter of 2.9nm. An optimal emission peak located at 490nm was observed when the green light-emitting PEP-FODs were excited at 400nm. It is discovered that Fe(2+), Fe(3+), and Cu(2+)can strongly quench the fluorescence of PEP-FODs through the nonradiative electron-transfer. The detection limit of 0.16, 0.67, and 0.15μM was obtained for Fe(2+), Fe(3+), and Cu(2+), respectively. The independent sensing platform of Fe(2+), Fe(3+), and Cu(2+)could be established by using NaF as a complexing agent and by regulating the reaction time between NaF and metal ions. Cell viability studies reveal that the as-prepared PEP-FODs possess good solubility and biocompatibility, making it as excellent imaging nanoprobes for intracellular Fe(2+), Fe(3+), and Cu(2+)sensing. The developed PEP-FODs might hold great promise to broaden applications in nanotechnology and bioanalysis.
Collapse
Affiliation(s)
- Zhong Feng Gao
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ting Ting Li
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Xiao Lei Xu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Yi Yao Liu
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Hong Qun Luo
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Nian Bing Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| |
Collapse
|
29
|
Ariga K, Li J, Fei J, Ji Q, Hill JP. Nanoarchitectonics for Dynamic Functional Materials from Atomic-/Molecular-Level Manipulation to Macroscopic Action. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1251-86. [PMID: 26436552 DOI: 10.1002/adma.201502545] [Citation(s) in RCA: 295] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/27/2015] [Indexed: 05/21/2023]
Abstract
Objects in all dimensions are subject to translational dynamism and dynamic mutual interactions, and the ability to exert control over these events is one of the keys to the synthesis of functional materials. For the development of materials with truly dynamic functionalities, a paradigm shift from "nanotechnology" to "nanoarchitectonics" is proposed, with the aim of design and preparation of functional materials through dynamic harmonization of atomic-/molecular-level manipulation and control, chemical nanofabrication, self-organization, and field-controlled organization. Here, various examples of dynamic functional materials are presented from the atom/molecular-level to macroscopic dimensions. These systems, including atomic switches, molecular machines, molecular shuttles, motional crystals, metal-organic frameworks, layered assemblies, gels, supramolecular assemblies of biomaterials, DNA origami, hollow silica capsules, and mesoporous materials, are described according to their various dynamic functions, which include short-term plasticity, long-term potentiation, molecular manipulation, switchable catalysis, self-healing properties, supramolecular chirality, morphological control, drug storage and release, light-harvesting, mechanochemical transduction, molecular tuning molecular recognition, hand-operated nanotechnology.
Collapse
Affiliation(s)
- Katsuhiko Ariga
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Junbai Li
- Beijing National Laboratory for Molecular Science, CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Science, CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
| | - Qingmin Ji
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Jonathan P Hill
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, 305-0044, Japan
| |
Collapse
|
30
|
Faucon A, Benhelli-Mokrani H, Córdova LA, Brulin B, Heymann D, Hulin P, Nedellec S, Ishow E. Are Fluorescent Organic Nanoparticles Relevant Tools for Tracking Cancer Cells or Macrophages? Adv Healthc Mater 2015; 4:2727-34. [PMID: 26548458 DOI: 10.1002/adhm.201500562] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 08/20/2015] [Indexed: 01/20/2023]
Abstract
Strongly solvatochromic fluorophores are devised, containing alkyl chains and enable to self-assemble as very bright fluorescent organic nanoparticles (FONs) in water (Φf = 0.28). The alkyl chains impart each fluorophore with strongly hydrophobic surroundings, causing distinct emission colors between FONs where the fluorophores are associated, and their disassembled state. Such color change is harnessed to assess the long-term fate of FONs in both cancer cells and monocytes/macrophages. Disintegration of the orange-emitting FONs by monocytes/macrophages is evidenced through the formation of micrometer green-yellowish emitting vesicles. By contrast, cancer cells retain longer the integrity of organic nanoparticles. In both cases, no significant toxicity is detected, making FONs as valuable bioimaging agents for cell tracking with weak risks of deleterious accumulation and low degradation rate.
Collapse
Affiliation(s)
- Adrien Faucon
- CEISAM-UMR CNRS 6230; Université de Nantes; 2 rue de la Houssinière 44322 Nantes France
| | | | - Luis A. Córdova
- Department of Oral and Maxillofacial Surgery; San Borja Arriaran University Hospital-Faculty of Dentistry; University of Chile-CONICYT; Sergio Livingstone Polhammer 943 8380000 Santiago Chile
- INSERM, UMR957, Equipe Ligue 2012, Université de Nantes; Faculté de Médecine; 1 rue Gaston Veil 44035 Nantes France
| | - Bénédicte Brulin
- INSERM, UMR957, Equipe Ligue 2012, Université de Nantes; Faculté de Médecine; 1 rue Gaston Veil 44035 Nantes France
| | - Dominique Heymann
- INSERM, UMR957, Equipe Ligue 2012, Université de Nantes; Faculté de Médecine; 1 rue Gaston Veil 44035 Nantes France
| | - Philippe Hulin
- INSERM UMS 016-UMS CNRS 3556; 8 quai Moncousu 44007 Nantes France
| | - Steven Nedellec
- INSERM UMS 016-UMS CNRS 3556; 8 quai Moncousu 44007 Nantes France
| | - Eléna Ishow
- CEISAM-UMR CNRS 6230; Université de Nantes; 2 rue de la Houssinière 44322 Nantes France
| |
Collapse
|
31
|
Narayan B, Bejagam KK, Balasubramanian S, George SJ. Autoresolution of Segregated and Mixed p-n Stacks by Stereoselective Supramolecular Polymerization in Solution. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506435] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
32
|
Narayan B, Bejagam KK, Balasubramanian S, George SJ. Autoresolution of Segregated and Mixed p-n Stacks by Stereoselective Supramolecular Polymerization in Solution. Angew Chem Int Ed Engl 2015; 54:13053-7. [PMID: 26333201 DOI: 10.1002/anie.201506435] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Indexed: 12/24/2022]
Abstract
A "chirality driven self-sorting" strategy is introduced for the controlled supramolecular organization of donor (D) and acceptor (A) molecules in multicomponent assemblies. The trans-1,2-bis(amido)cyclohexane (trans-BAC) has been identified as a supramolecular motif with strong homochiral recognition to direct this chirality controlled assembly process of enantiomers in solution. Stereoselective supramolecular polymerization of trans-BAC appended naphthalene diimide monomers (NDIs) has been probed in detail by spectroscopic and mechanistic investigations. This chirality-driven self-sorting design of enantiomeric components also offers to realize mixed and segregated D-A stacks by supramolecular co-assembly of the NDI acceptors with trans-BAC appended dialkoxynaphthalene (DAN) donor monomers. Such an unprecedented chirality control on D-A organization paves the way for the creation of supramolecular p-n nanostructures with controlled molecular-level organization.
Collapse
Affiliation(s)
- Bhawani Narayan
- Supramolecular Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore 560064 (India)
| | - Karteek K Bejagam
- Chemistry and Physics of Materials Unit, JNCASR, Jakkur, Bangalore 560064 (India)
| | | | - Subi J George
- Supramolecular Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore 560064 (India).
| |
Collapse
|
33
|
Tang F, Wang C, Wang J, Wang X, Li L. Organic–inorganic hybrid nanoparticles with enhanced fluorescence. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.04.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
34
|
Chen H, Chang K, Men X, Sun K, Fang X, Ma C, Zhao Y, Yin S, Qin W, Wu C. Covalent Patterning and Rapid Visualization of Latent Fingerprints with Photo-Cross-Linkable Semiconductor Polymer Dots. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14477-14484. [PMID: 26077019 DOI: 10.1021/acsami.5b03749] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fingerprint imaging and recognition represent the most important approach in personal identification. Here we designed and synthesized oxetane-functionalized semiconductor polymer dots (Ox-Pdots) for covalent patterning and rapid visualization of latent fingerprints. The high fluorescence brightness, large Stokes shift, and excellent surface properties of the Ox-Pdots lead to fingerprint imaging with high sensitivity and resolution. Fingerprint ridge structures with the first, second, and third levels of details were clearly developed within minutes. The method was facile and robust for visualization of fingerprints on various surfaces including glass, metal, and plastics. Moreover, the oxetane groups in the Ox-Pdots undergo cross-linking reactions induced by a short-time UV irradiation, yielding 3-D intermolecular polymer network. The resulting fingerprint patterns exhibit unparalleled stability against rigorous treatment, as compared to those by traditional Pdots. Our results demonstrate that the Ox-Pdots hold great promise for latent fingerprint imaging and fluorescence anticounterfeiting applications.
Collapse
Affiliation(s)
- Haobin Chen
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Kaiwen Chang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Xiaoju Men
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Kai Sun
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Xiaofeng Fang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Chi Ma
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Yongxi Zhao
- ‡Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shanxi 710049, China
| | - Shengyan Yin
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Weiping Qin
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Changfeng Wu
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012, China
| |
Collapse
|
35
|
Mandal AK, Sreejith S, He T, Maji SK, Wang XJ, Ong SL, Joseph J, Sun H, Zhao Y. Three-photon-excited luminescence from unsymmetrical cyanostilbene aggregates: morphology tuning and targeted bioimaging. ACS NANO 2015; 9:4796-4805. [PMID: 25951348 DOI: 10.1021/nn507072r] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report an experimental observation of aggregation-induced enhanced luminescence upon three-photon excitation in aggregates formed from a class of unsymmetrical cyanostilbene derivatives. Changing side chains (-CH3, -C6H13, -C7H15O3, and folic acid) attached to the cyanostilbene core leads to instantaneous formation of aggregates with sizes ranging from micrometer to nanometer scale in aqueous conditions. The crystal structure of a derivative with a methyl side chain reveals the planarization in the unsymmetrical cyanostilbene core, causing luminescence from corresponding aggregates upon three-photon excitation. Furthermore, folic acid attached cyanostilbene forms well-dispersed spherical nanoaggregates that show a high three-photon cross-section of 6.0 × 10(-80) cm(6) s(2) photon(-2) and high luminescence quantum yield in water. In order to demonstrate the targeted bioimaging capability of the nanoaggregates, three cell lines (HEK293 healthy cell line, MCF7 cancerous cell line, and HeLa cancerous cell line) were employed for the investigations on the basis of their different folate receptor expression level. Two kinds of nanoaggregates with and without the folic acid targeting ligand were chosen for three-photon bioimaging studies. The cell viability of three types of cells incubated with high concentration of nanoaggregates still remained above 70% after 24 h. It was observed that the nanoaggregates without the folic acid unit could not undergo the endocytosis by both healthy and cancerous cell lines. No obvious endocytosis of folic acid attached nanoaggregates was observed from the HEK293 and MCF7 cell lines having a low expression of the folate receptor. Interestingly, a significant amount of endocytosis and internalization of folic acid attached nanoaggregates was observed from HeLa cells with a high expression of the folate receptor under three-photon excitation, indicating targeted bioimaging of folic acid attached nanoaggregates to the cancer cell line. This study presents a paradigm of using organic nanoaggregates for targeted three-photon bioimaging.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Yanli Zhao
- ¶School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| |
Collapse
|
36
|
Schill J, Schenning APHJ, Brunsveld L. Self-Assembled Fluorescent Nanoparticles from π-Conjugated Small Molecules: En Route to Biological Applications. Macromol Rapid Commun 2015; 36:1306-21. [DOI: 10.1002/marc.201500117] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 03/26/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Jurgen Schill
- Laboratory of Chemical Biology; Department of Biomedical Engineering, and Institute of Complex Molecular Systems; Eindhoven University of Technology; P.O Box 513 5600 MB Eindhoven The Netherlands
| | - Albertus P. H. J. Schenning
- Functional Organic Materials and Devicesand Institute of Complex Molecular Systems; Eindhoven University of Technology; P.O Box 513 5600 MB Eindhoven The Netherlands
| | - Luc Brunsveld
- Laboratory of Chemical Biology; Department of Biomedical Engineering, and Institute of Complex Molecular Systems; Eindhoven University of Technology; P.O Box 513 5600 MB Eindhoven The Netherlands
| |
Collapse
|
37
|
Supramolecular block copolymers by kinetically controlled co-self-assembly of planar and core-twisted perylene bisimides. Nat Commun 2015; 6:7009. [PMID: 25959777 PMCID: PMC4432616 DOI: 10.1038/ncomms8009] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 03/20/2015] [Indexed: 12/23/2022] Open
Abstract
New synthetic methodologies for the formation of block copolymers have revolutionized polymer science within the last two decades. However, the formation of supramolecular block copolymers composed of alternating sequences of larger block segments has not been realized yet. Here we show by transmission electron microscopy (TEM), 2D NMR and optical spectroscopy that two different perylene bisimide dyes bearing either a flat (A) or a twisted (B) core self-assemble in water into supramolecular block copolymers with an alternating sequence of (AmBB)n. The highly defined ultralong nanowire structure of these supramolecular copolymers is entirely different from those formed upon self-assembly of the individual counterparts, that is, stiff nanorods (A) and irregular nanoworms (B), respectively. Our studies further reveal that the as-formed supramolecular block copolymer constitutes a kinetic self-assembly product that transforms into thermodynamically more stable self-sorted homopolymers upon heating. Block co-polymers are becoming of ever-increasing importance in polymer science. Here, the authors show that the co-assembly of two perylene bisimide dyes leads to supramolecular block copolymer structures with a regular alternating sequence of short blocks of respective homoaggregates.
Collapse
|
38
|
Ho JH, Chen YH, Chou LT, Lai PW, Chen PS. The improvement of π-conjugation by the lateral benzene of anthracene and naphthalene. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.08.097] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
39
|
Dasgupta D, Kendhale AM, Debije MG, Ter Schiphorst J, Shishmanova IK, Portale G, Schenning APHJ. Effect of the ortho alkylation of perylene bisimides on the alignment and self-assembly properties. ChemistryOpen 2014; 3:138-41. [PMID: 25478308 PMCID: PMC4232268 DOI: 10.1002/open.201402011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Indexed: 01/11/2023] Open
Abstract
The effect of the ortho alkylation of perylene bisimides on the alignment and self-assembly properties has been studied. It was found that the dichroic properties of perylene bisimides in a liquid crystal host can be reversed with a single synthetic step by ortho alkylation. Furthermore, a solvent-induced growth of ultralong organic n-type semiconducting fibrils from non-ortho-alkylated perylene bisimide was observed. Ortho substitution of the perylene bisimide core alters the mode of fibrillar growth, leading to isotropic crystallization.
Collapse
Affiliation(s)
- Debarshi Dasgupta
- Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology P.O. Box 513, 5600 MB, Eindhoven (The Netherlands) E-mail:
| | - Amol M Kendhale
- Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology P.O. Box 513, 5600 MB, Eindhoven (The Netherlands) E-mail:
| | - Michael G Debije
- Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology P.O. Box 513, 5600 MB, Eindhoven (The Netherlands) E-mail:
| | - Jeroen Ter Schiphorst
- Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology P.O. Box 513, 5600 MB, Eindhoven (The Netherlands) E-mail:
| | - Ivelina K Shishmanova
- Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology P.O. Box 513, 5600 MB, Eindhoven (The Netherlands) E-mail:
| | - Giuseppe Portale
- Netherlands Organization for Scientific Research (NWO), European Synchrotron Radiation Facility (ESRF), DUBBLE-CRG Grenoble, 38043 (France)
| | - Albertus P H J Schenning
- Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology P.O. Box 513, 5600 MB, Eindhoven (The Netherlands) E-mail: ; Institute for Complex Molecular Systems, Eindhoven University of Technology P.O. Box 513, 5600 MB, Eindhoven (The Netherlands)
| |
Collapse
|
40
|
Korevaar PA, Newcomb CJ, Meijer EW, Stupp SI. Pathway Selection in Peptide Amphiphile Assembly. J Am Chem Soc 2014; 136:8540-3. [DOI: 10.1021/ja503882s] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Peter A. Korevaar
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | | | - E. W. Meijer
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | | |
Collapse
|
41
|
Lázár L, Nagy M, Rácz D, Zsuga M, Kéki S. Synthesis of fluorescent fluorene–isoindole-containing mono- and oligomers. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
42
|
Simalou O, Lu R, Xue P, Gong P, Zhang T. C3-Symmetrical Cyano-Substituted Triphenylbenzenes for Organogels and Organic Nanoparticles with Controllable Fluorescence and Aggregation-Induced Emission. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
43
|
Jiang BP, Guo DS, Liu YC, Wang KP, Liu Y. Photomodulated fluorescence of supramolecular assemblies of sulfonatocalixarenes and tetraphenylethene. ACS NANO 2014; 8:1609-1618. [PMID: 24467338 DOI: 10.1021/nn405923b] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Self-assembled fluorescent nanoparticles responding to specific stimuli are highly appealing for applications such as labels, probes, memory devices, and logic gates. However, organic analogues are challenging to prepare, due to unfavorable aggregation-caused quenching. We herein report the preparation of self-assembled fluorescent organic nanoparticles in water by means of calixarene-induced aggregation of a tetraphenylethene derivative (QA-TPE) mediated by p-sulfonatocalix[4]arenes. The self-assembled nanoparticles showed interesting photoswitching behaviors, and the fluorescence output of the generated nanoparticles was opposite to that of free QA-TPE both before and after irradiation. Free QA-TPE is nonfluorescent, owing to intramolecular rotations of the phenyl rings. In contrast, the self-assembled nanoparticles that formed upon complexation of QA-TPE with p-sulfonatocalix[4]arene exhibited aggregation-induced emission fluorescence (λ(em) = 480 nm, Φ = 14%), as a result of the inhibition of rotations. Upon UV light irradiation, free QA-TPE was cyclized to the corresponding diphenylphenanthrene, which showed typical fluorescence of a π-conjugated system (λ(em) = 385 nm, Φ = 9.3%), whereas the nanoparticles were nonfluorescent upon irradiation due to the aggregation-caused quenching. In effect, this system allows programmed modulation of TPE fluorescence at two different emission wavelengths by means of host-guest complexation and irradiation. Relative to a single-mode stimulus-responsive system, our new developed system of highly integrated modes into a single molecular unit that can exhibit modulation of fluorescence by multiple stimulus is expected to be more adaptable for practical applications and to show enhanced multifunctionality.
Collapse
Affiliation(s)
- Bang-Ping Jiang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | | | | | | | | |
Collapse
|
44
|
Fischer I, Petkau-Milroy K, Dorland YL, Schenning APHJ, Brunsveld L. Self-assembled fluorescent organic nanoparticles for live-cell imaging. Chemistry 2013; 19:16646-50. [PMID: 24281811 DOI: 10.1002/chem.201302647] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Indexed: 12/12/2022]
Abstract
Fluorescent, cell-permeable, organic nanoparticles based on self-assembled π-conjugated oligomers with high absorption cross-sections and high quantum yields have been developed. The nanoparticles are generated with a tuneable density of amino groups for charge-mediated cellular uptake by a straightforward self-assembly protocol, which allows for control over size and toxicity. The results show that a single amino group per ten oligomers is sufficient to achieve cellular uptake. The non-toxic nanoparticles are suitable for both one- and two-photon cellular imaging and flow cytometry, and undergo very efficient cellular uptake.
Collapse
Affiliation(s)
- Irén Fischer
- Laboratory of Functional Organic Materials and Devices and Institute of Complex Molecular Systems, Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven (The Netherlands)
| | | | | | | | | |
Collapse
|
45
|
Self-assembled magnetic fluorescent polymeric micelles for magnetic resonance and optical imaging. Biomaterials 2013; 35:344-55. [PMID: 24103655 DOI: 10.1016/j.biomaterials.2013.09.035] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Accepted: 09/10/2013] [Indexed: 12/20/2022]
Abstract
Stable and cytocompatible hybrid PEGylated micelles with multimodal imaging capabilities are described. The F3O4-encapsulated polymeric micelles composed of cores containing magnetic nanoparticles and polyethylene glycol (PEG) shells are synthesized by self-assembly of amphiphilic poly(HFMA-co-VBK)-g-PEG copolymers and oleic acid stabilized Fe3O4 nanoparticles. The Fe3O4 magnetic nanoparticles in the core produce T2-weighted MR imaging functionalities, whereas the small fluorescent monomer carbazole in the polymer shell introduces good fluorescent properties. The multifunctional micelles exhibit excellent paramagnetic properties with the maximum saturation magnetization of 9.61 emu/g and transverse relaxivity rate of 157.44 mM(-1) S(-1). In vivo magnetic resonance imaging (MRI) studies reveal enhanced contrast between the liver and spleen. Fluorescence spectra show characteristic emission peaks from carbazole at 350 nm and 365 nm and vivid blue fluorescence can be observed by 2-photon confocal scanning laser microscopy (CLSM). In vivo optical imaging demonstrates the unique fluorescent characteristics of the Fe3O4-encapsulated polymeric micelles in the liver and spleen and the excellent multifunctional properties suggest potential clinical use as nanocarriers in magnetic resonance imaging and optical imaging.
Collapse
|
46
|
Fischer I, Kaeser A, Peters-Gumbs MAM, Schenning APHJ. Fluorescent π-conjugated polymer dots versus self-assembled small-molecule nanoparticles: what's the difference? Chemistry 2013; 19:10928-34. [PMID: 23843202 DOI: 10.1002/chem.201301258] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Indexed: 11/10/2022]
Abstract
Fluorescent nanoparticles based on π-conjugated small molecules and polymers are two different classes of π-conjugated systems that have attracted much interest. To date, both emerging classes have only been studied separately and showed no clear differences in their properties. Herein these nanoparticles are compared on the basis of a fluorene co-polymer and its corresponding small molecule. Both systems formed nanoparticles with the same diameter, whereas the fluorescence properties clearly differed. In case of the polymer the fluorescence diminished, whereas for the small molecules the fluorescence increased. In addition, the capability of encapsulation and release of a hydrophobic dye from the fluorescent nanoparticles was studied. For the polymer system, encapsulation was highly efficient and no release was observed, whereas for the small molecule system encapsulation was less efficient and release of the dye was observed. These studies show a clear difference between small molecules and polymers which has important implications for the design of fluorescent nanoparticles.
Collapse
Affiliation(s)
- Irén Fischer
- Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | | | | | | |
Collapse
|
47
|
Wang X, He F, Li L, Wang H, Yan R, Li L. Conjugated oligomer-based fluorescent nanoparticles as functional nanocarriers for nucleic acids delivery. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5700-5708. [PMID: 23721201 DOI: 10.1021/am401118r] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Oligonucleotides such as siRNA and plasmid DNA (pDNA) have great potential for gene therapies. Multifunctional, environment-resistant carriers with imaging capabilities are required to track the assembly and disassembly of oligonucleotides, monitor the delivery processes, and develop new delivery systems. Conjugated polymers and oligomers can potentially be used as novel materials for functional nanocarriers with both delivery and imaging abilities. In this work, a novel π-conjugated oligomer 4,7-(9,9'-bis(6-adenine hexyl)fluorenyl)-2,1,3-benzothiadiazole (OFBT-A) modified with nucleotide adenine (A) groups in its side chains is synthesized and characterized. Fluorescent nanoparticles based on the π-conjugated oligomers OFBT-A are developed as novel functional nanocarriers for oligonucleotides. Single-stranded DNA (ssDNA) TR-T5 labeled with Texas Red (TR) fluorescent dye is selected as a model payload oligonucleotide. The capture abilities and stability of OFBT-A are investigated by monitoring the fluorescence resonance energy transfer (FRET) efficiency between the OFBT-A nanoparticles and TR labels in solution. The OFBT-A/TR-T5 composites are stable in solution at high ionic strengths (0-500 mM) and have a wide working pH range, from 3.0 to 9.5. The in vitro profile demonstrates that the release of the TR-DNA is induced by the ssDNA A43, which has a high charge density. The release process is monitored by measuring the changes in FRET efficiency and fluorescence color for the OFBT-A/TR-T5 composites. Using this carrier, the uptake of TR-DNA by A549 lung cancer cells is observed. Both the OFBT-A nanoparticles and the OFBT-A/TR-T5 composites show high cytocompatibility. We anticipate that these novel functional nanocarriers will provide a safe strategy for monitoring the gene delivery process.
Collapse
Affiliation(s)
- Xiaoyu Wang
- State Key Lab for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | | | | | | | | | | |
Collapse
|
48
|
Senthilkumar T, Asha SK. Self-Assembly in Tailor-Made Polyfluorenes: Synergistic Effect of Porous Spherical Morphology and FRET for Visual Sensing of Bilirubin. Macromolecules 2013. [DOI: 10.1021/ma4000946] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T. Senthilkumar
- Polymer & Advanced Material Laboratory, Polymer Science & Engineering Division, CSIR, NCL, Pune-411008, Maharashtra, India
| | - S. K. Asha
- Polymer & Advanced Material Laboratory, Polymer Science & Engineering Division, CSIR, NCL, Pune-411008, Maharashtra, India
| |
Collapse
|