1
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Polacchi L, Brosseau A, Smith A, Métivier R, Allain C. Polymerization of tetrazine-substituted diacetylenes as aggregates in suspension. Photochem Photobiol Sci 2023; 22:2121-2132. [PMID: 37219763 DOI: 10.1007/s43630-023-00434-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 05/02/2023] [Indexed: 05/24/2023]
Abstract
Polydiacetylenes (PDAs) are conjugated polymers that have been widely exploited for their chromogenic and fluorogenic transitions upon exposure to external stimuli and biomolecules of interest. Herein, we propose a comparative study of the polymerization dynamics of two diacetylene derivatives, TzDA1 and TzDA2, in the form of aggregates in suspension prepared by reprecipitation method from organic solvents in water, varying the diacetylene concentration and solvent proportions, and sonication in water, varying the time and temperature. Both derivatives bear a tetrazine fluorophore, which serves both to increase the fluorescence quantum yield of the system and to track the polymerization by fluorescence quenching exclusively by the blue-PDA, and differ by the chain termination. It was shown that adding a butyl ester function in TzDA2 to a simple urethane (TzDA1) influences the polymerizability and kinetics of polymerization of the aggregates in suspension. In addition, we showed that also the preparation method and preparation conditions do have an influence on the polymerization dynamics, suggesting that a careful study of these properties should be carried out before investigating the applications of such objects.
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Affiliation(s)
- Luca Polacchi
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-Sur-Yvette, France
| | - Arnaud Brosseau
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-Sur-Yvette, France
| | - Adrien Smith
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-Sur-Yvette, France
| | - Rémi Métivier
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-Sur-Yvette, France.
| | - Clémence Allain
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-Sur-Yvette, France.
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2
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Sarkar S, De S. Brij Niosomes as Carriers for Sustained Drug Delivery─A Fluorescence-Based Approach to Probe the Niosomal Microenvironment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4521-4537. [PMID: 35377656 DOI: 10.1021/acs.langmuir.1c02996] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Niosomes were prepared using a triad of polyoxyethylene alkyl ether surfactants. The focus was to elucidate the effects of varying alkyl chain length and varying hydrophilic headgroups on the structure of the niosomes, with an aim to design niosomes for efficient encapsulation and release of both hydrophobic and hydrophilic drugs. The phase transitions of the surfactants were ascertained by differential scanning calorimetry. It was found that the headgroup has a profound influence on the niosomal bilayer. Fluorescent probes Coumarin 153 (C-153) and 1,6-diphenyl-1,3,5-hexatriene were used to probe the structural integrity of the niosomal bilayer under stress conditions. Other aspects of the niosomes were probed by following the aggregation of the dyes fluorescein (FL) and Nile Red, red edge excitation shift, and fluorescence resonance energy transfer (FRET) between them. Fluorescence lifetime imaging microscopy provides proof of the exact location of the donor and acceptor dyes in the niosomes under FRET condition. It was also shown that the niosomes are efficient "carriers" for entrapment and controlled release of the chemotherapeutic drug 5-fluorouracil. It was found that a rigid niosomal bilayer leads to controlled drug release. The present work is relevant for the future use of these niosomes for cargo entrapment.
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Affiliation(s)
- Sudeshna Sarkar
- Department of Chemistry, University of Kalyani, Kalyani, West Bengal 741235, India
| | - Swati De
- Department of Chemistry, University of Kalyani, Kalyani, West Bengal 741235, India
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3
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Polacchi L, Brosseau A, Guillot R, Métivier R, Allain C. Enhanced mechano-responsive fluorescence in polydiacetylene thin films through functionalization with tetrazine dyes: photopolymerization, energy transfer and AFM coupled to fluorescence microscopy studies. Phys Chem Chem Phys 2021; 23:25188-25199. [PMID: 34730138 DOI: 10.1039/d1cp03458h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of mechano-responsive fluorescent materials is essential for the design and construction of reliable and versatile sensors for mechanical stress. Herein, novel energy transfer-based systems with tetrazine fluorophore and a polydiacetylene (PDA) backbone are synthesized and studied comparatively to a simple polydiacetylene in the form of thin films. Their photopolymerization properties, energy transfer efficiencies and fluorescent response to nanoscale mechanical stimulation are assessed. It is pointed out that the self-assembling group on the PDA chain influences the geometrical arrangement of the chains and the film morphology and, as a consequence, the efficiency and kinetics of polymerization and the energy transfer efficiency. Moreover, we show that the strategy of introducing tetrazine fluorophore provides a new effective route of improving force detectability by fluorescence using polydiacetylenes as mechano-responsive units.
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Affiliation(s)
- Luca Polacchi
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190 Gif-sur-Yvette, France.
| | - Arnaud Brosseau
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190 Gif-sur-Yvette, France.
| | - Régis Guillot
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d'Orsay, 91405, Orsay, France
| | - Rémi Métivier
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190 Gif-sur-Yvette, France.
| | - Clémence Allain
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190 Gif-sur-Yvette, France.
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4
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Sun Y, Yao Y, Wang B, Li Y, Li S, Sui Y, Qiu B. Study on the Biosensor Based on Biomimetic PDA Vesicles Fluorescence Resonance Energy Transfer for the Determination of Ovarian Cancer Marker miRNA-21. ANAL SCI 2021; 37:1349-1353. [PMID: 33431737 DOI: 10.2116/analsci.20p404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In recent years, more and more research is being conducted on microRNAs and their involvement in the regulation of autophagy phagocytosis which is closely related to tumor growth. MicroRNA-21 is a kind of small RNA that can regulate gene expression and plays a significant role in autophagy of tumor cells. But the detection of microRNAs had always been a problem in the field of biological analysis. In this study, we designed a new fluorescent sensor for the detection of miRNA-21. The sensor was based on the successful signal reporting by E36-encapsulated vesicles and the specific interaction between E36 and miRNA-21. In the presence of miRNA, the E36/miRNA-21 complex formed and served as a donor molecule inside the acceptor PDA vesicles to amplify the fluorescence through FRET. Additionally, the sensor was applied to detect miRNA-21 in complex biological samples with satisfactory results.
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Affiliation(s)
- Yang Sun
- Department of Gynecology, Fujian Cancer Hospital, Affiliated Cancer Hospital of Fujian Medical University
| | - Yusheng Yao
- Department of Anesthesiology, Shengli Clinical Medical College of Fujian Medical University &Fujian Provincial Hospital
| | - Bingrong Wang
- Department of Gynecology, Fujian Cancer Hospital, Affiliated Cancer Hospital of Fujian Medical University
| | - Yiying Li
- Department of Gynecology, Fujian Cancer Hospital, Affiliated Cancer Hospital of Fujian Medical University
| | - Siming Li
- Department of Gynecology, Fujian Cancer Hospital, Affiliated Cancer Hospital of Fujian Medical University
| | - Yuxia Sui
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University & Fujian Provincial Hospital
| | - Bin Qiu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University
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5
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Suklabaidya S, Chakraborty S, Saha J, Dey B, Sarkar S, Bhattacharjee D, Hussain SA. Study of polydiacetylenes and rhodamine-800 mixed film at air–water interface and onto solid support: Trace of fluorescence resonance energy transfer (FRET). Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03102-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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6
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Oh J, Jeon I, Kim D, You Y, Baek D, Kang SJ, Lee J. Highly Stable Upconverting Nanocrystal-Polydiacetylenes Nanoplates for Orthogonal Dual Signaling-Based Detection of Cyanide. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4934-4943. [PMID: 31904923 DOI: 10.1021/acsami.9b20438] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although the unique optical signaling properties of polydiacetylene (PDA) have been exploited in diverse bio-chemosensors, the practical application of most PDA sensor systems is limited by their instability in harsh environments and fluorescence signal weakness. Herein, a universal design principle for a highly stable PDA sensor system with a practical dual signaling capability is developed to detect cyanide (CN) ions, which are commonly found in drinking water. Effective metal intercalation and enhanced hydrophobic intermolecular interactions between PDA-metal supramolecules are used to construct highly stacked PDA-metal nanoplates that feature unusual optical stability upon exposure to strong acids, bases, organic solvents, and thermal/mechanical stresses, and can selectively detect CN anions, concomitantly undergoing a specific supramolecular structure change. To realize the practical dual signaling capability of the PDA sensor system, upconverting nanocrystals (UCNs) are incorporated into highly stacked PDA-metal nanoplates, and practical dual signaling (orthogonal changes in luminescence and visible color) is demonstrated using a portable detection system. The presented universal design principle is expected to be suitable for the development of other highly stable and selective PDA sensor systems with practical dual signaling capability.
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Affiliation(s)
- Jongwon Oh
- School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Inkyu Jeon
- School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Dowon Kim
- School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Younghoon You
- School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Dahye Baek
- School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Seok Ju Kang
- School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Jiseok Lee
- School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
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7
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Ortuso RD, Ricardi N, Bürgi T, Wesolowski TA, Sugihara K. The deconvolution analysis of ATR-FTIR spectra of diacetylene during UV exposure. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 219:23-32. [PMID: 31030044 DOI: 10.1016/j.saa.2019.04.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/10/2019] [Accepted: 04/14/2019] [Indexed: 06/09/2023]
Abstract
We performed a detailed deconvolution analysis of ATR-FTIR peaks of a common diacetylene, 10,12-tricosadiynoic acid (TRCDA) during the polymerization and the blue-to-red transition. Based on the analysis and the solvent dependence on the IR signals, we found that the triple peak from CC stretching mode that has been previously suspected as a consequence of Fermi resonance is rather associated with the macromolecular assembly of TRCDA. Besides these CC triple peaks, we found that the background in the region increased during the UV exposure due to the CC signals from polymers. In addition, the anisotropic compression during polymerization was also detected, which supports the proposed interpretation of X-ray data reported previously. These results are the benefits from the deconvolution analysis.
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Affiliation(s)
- Roberto D Ortuso
- Department of physical chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, 1211, Switzerland
| | - Niccolò Ricardi
- Department of physical chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, 1211, Switzerland
| | - Thomas Bürgi
- Department of physical chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, 1211, Switzerland
| | - Tomasz A Wesolowski
- Department of physical chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, 1211, Switzerland
| | - Kaori Sugihara
- Department of physical chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, 1211, Switzerland.
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8
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Wen JT, Roper JM, Tsutsui H. Polydiacetylene Supramolecules: Synthesis, Characterization, and Emerging Applications. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00848] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Yao Y, Fu K, Huang X, Chen D. Polydiacetylene-Tb3+Nanosheets of Which Both the Color and the Fluorescence Can Be Reversibly Switched between Two Colors. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuansi Yao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science; Fudan University; Shanghai 200433 China
| | - Kaiyu Fu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science; Fudan University; Shanghai 200433 China
| | - Xiayun Huang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science; Fudan University; Shanghai 200433 China
| | - Daoyong Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science; Fudan University; Shanghai 200433 China
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10
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Spagnoli S, Briand E, Vickridge I, Fave JL, Schott M. Method for Determining the Polymer Content in Nonsoluble Polydiacetylene Films: Application to Pentacosadiynoic Acid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1419-1426. [PMID: 28099812 DOI: 10.1021/acs.langmuir.6b03147] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The absorptivities of polydiacetylenes (PDAs) used in Langmuir films or vesicles for the development of PDA sensor films or other applications such as nonlinear optics and field-effect transistors are not known, so the polymer contents cannot be deduced from experimental spectra. Here we introduce a novel method, using nuclear reaction analysis (NRA), that allows a quantitative determination of the polymer content X proportion of monomers that have been incorporated into PDA chains. We apply it to pentacosadiynoic acid (PCDA) evaporated microcrystalline films. A calibration curve giving X as a function of the area under an absorption spectrum normalized to the monomer areal density is obtained for blue and red PCDA. The method is applicable to all kinds of films and to other PDAs, provided films with known molecular areal density are available. An example of the application to a PCDA Langmuir film is given.
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Affiliation(s)
- Sylvie Spagnoli
- Université Grenoble Alpes, LIPHY , F-38000 Grenoble, France
- CNRS, UMR5588, LIPHY , F-38000 Grenoble, France
| | - Emrick Briand
- Sorbonne Universités , UPMC Univ Paris 06, UMR7588, INSP, F-75005 Paris, France
- CNRS, UMR7588, Institut des NanoSciences de Paris (INSP) , F-75005 Paris, France
| | - Ian Vickridge
- Sorbonne Universités , UPMC Univ Paris 06, UMR7588, INSP, F-75005 Paris, France
- CNRS, UMR7588, Institut des NanoSciences de Paris (INSP) , F-75005 Paris, France
| | - Jean-Louis Fave
- Sorbonne Universités , UPMC Univ Paris 06, UMR7588, INSP, F-75005 Paris, France
- CNRS, UMR7588, Institut des NanoSciences de Paris (INSP) , F-75005 Paris, France
| | - Michel Schott
- Sorbonne Universités , UPMC Univ Paris 06, UMR7588, INSP, F-75005 Paris, France
- CNRS, UMR7588, Institut des NanoSciences de Paris (INSP) , F-75005 Paris, France
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11
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Abrams JS, Howe SE, Becerra N, Kohli P, Konjufca V. Immunogenicity of antigen-conjugated biodegradable polydiacetylene liposomes administered mucosally. J Biomed Mater Res A 2016; 105:557-565. [DOI: 10.1002/jbm.a.35938] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/30/2016] [Accepted: 10/13/2016] [Indexed: 12/23/2022]
Affiliation(s)
| | - Savannah E. Howe
- Department of Microbiology; Southern Illinois University; Carbondale Illinois
| | - Nathalie Becerra
- Department of Chemistry; Southern Illinois University; Carbondale Illinois
| | - Punit Kohli
- Department of Chemistry; Southern Illinois University; Carbondale Illinois
| | - Vjollca Konjufca
- Department of Microbiology; Southern Illinois University; Carbondale Illinois
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12
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Embedding luminescent iridium complex into polydiacetylene vesicles as a means of development of responsive luminescent system for imaging applications. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.03.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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Yang D, Li P, Zheng R, Wang Y, Lv J. A research on excited-state intramolecular proton-transfer mechanism of a new chemosensor. Theor Chem Acc 2016. [DOI: 10.1007/s00214-015-1802-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Barisien T, Fave JL, Hameau S, Legrand L, Schott M, Malinge J, Clavier G, Audebert P, Allain C. Reversible quenching of a chromophore luminescence by color transition of a polydiacetylene. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10836-10841. [PMID: 24102187 DOI: 10.1021/am403039u] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A new reactive diacetylene molecule has been synthesized, incorporating a strongly luminescent chromophore, tetrazine (Tz). It readily polymerizes into the blue polydiacetylene (PDA) form, quenching the Tz luminescence already at concentrations ≤1 %. The blue to red PDA transition is thermally induced in the solid state and the original strong Tz emission is restored. This might lead to a new type of detection for sensors using the PDA color transition.
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Affiliation(s)
- Thierry Barisien
- Institut des NanoSciences de Paris (INSP), UPMC Université Paris 6 - CNRS, UMR7588 , 4 place Jussieu, 75252 Paris cedex 05, France
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15
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Dogra N, Li X, Kohli P. Investigating ligand-receptor interactions at bilayer surface using electronic absorption spectroscopy and fluorescence resonance energy transfer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12989-12998. [PMID: 22734511 PMCID: PMC3439585 DOI: 10.1021/la300724z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We investigate interactions between receptors and ligands at bilayer surface of polydiacetylene (PDA) liposomal nanoparticles using changes in electronic absorption spectroscopy and fluorescence resonance energy transfer (FRET). We study the effect of mode of linkage (covalent versus noncovalent) between the receptor and liposome bilayer. We also examine the effect of size-dependent interactions between liposome and analyte through electronic absorption and FRET responses. Glucose (receptor) molecules were either covalently or noncovalently attached at the bilayer of nanoparticles, and they provided selectivity for molecular interactions between glucose and glycoprotein ligands of E. coli. These interactions induced stress on conjugated PDA chain which resulted in changes (blue to red) in the absorption spectrum of PDA. The changes in electronic absorbance also led to changes in FRET efficiency between conjugated PDA chains (acceptor) and fluorophores (Sulphorhodamine-101) (donor) attached to the bilayer surface. Interestingly, we did not find significant differences in UV-vis and FRET responses for covalently and noncovalently bound glucose to liposomes following their interactions with E. coli. We attributed these results to close proximity of glucose receptor molecules to the liposome bilayer surface such that induced stress were similar in both the cases. We also found that PDA emission from direct excitation mechanism was ~2-10 times larger than that of the FRET-based response. These differences in emission signals were attributed to three major reasons: nonspecific interactions between E. coli and liposomes, size differences between analyte and liposomes, and a much higher PDA concentration with respect to sulforhodamine (SR-101). We have proposed a model to explain our experimental observations. Our fundamental studies reported here will help in enhancing our knowledge regarding interactions involved between soft particles at molecular levels.
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16
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Dogra N, Reyes JC, Garg N, Kohli P. Real-time monitoring of ligand-receptor interactions with fluorescence resonance energy transfer. J Vis Exp 2012:e3805. [PMID: 22929922 DOI: 10.3791/3805] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
FRET is a process whereby energy is non-radiatively transferred from an excited donor molecule to a ground-state acceptor molecule through long-range dipole-dipole interactions. In the present sensing assay, we utilize an interesting property of PDA: blue-shift in the UV-Vis electronic absorption spectrum of PDA (Figure 1) after an analyte interacts with receptors attached to PDA. This shift in the PDA absorption spectrum provides changes in the spectral overlap (J) between PDA (acceptor) and rhodamine (donor) that leads to changes in the FRET efficiency. Thus, the interactions between analyte (ligand) and receptors are detected through FRET between donor fluorophores and PDA. In particular, we show the sensing of a model protein molecule streptavidin. We also demonstrate the covalent-binding of bovine serum albumin (BSA) to the liposome surface with FRET mechanism. These interactions between the bilayer liposomes and protein molecules can be sensed in real-time. The proposed method is a general method for sensing small chemical and large biochemical molecules. Since fluorescence is intrinsically more sensitive than colorimetry, the detection limit of the assay can be in sub-nanomolar range or lower. Further, PDA can act as a universal acceptor in FRET, which means that multiple sensors can be developed with PDA (acceptor) functionalized with donors and different receptors attached on the surface of PDA liposomes.
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Affiliation(s)
- Navneet Dogra
- Department of Chemistry and Biochemistry, Southern Illinois University, USA
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17
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Yoo I, Song S, Yoon B, Kim JM. Size-Controlled Fabrication of Polydiacetylene-Embedded Microfibers on a Microfluidic Chip. Macromol Rapid Commun 2012; 33:1256-61. [DOI: 10.1002/marc.201200073] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2012] [Revised: 03/23/2012] [Indexed: 01/22/2023]
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18
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Lee J, Yoon B, Ham DY, Yarimaga O, Lee CW, Jaworski J, Kim JM. Magnetically Responsive Inorganic/Polydiacetylene Nanohybrids. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200049] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Choi JM, Yoon B, Choi K, Seol ML, Kim JM, Choi YK. Micropatterning Polydiacetylene Supramolecular Vesicles on Glass Substrates using a Pre-Patterned Hydrophobic Thin Film. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201100678] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Yarimaga O, Jaworski J, Yoon B, Kim JM. Polydiacetylenes: supramolecular smart materials with a structural hierarchy for sensing, imaging and display applications. Chem Commun (Camb) 2012; 48:2469-85. [PMID: 22281683 DOI: 10.1039/c2cc17441c] [Citation(s) in RCA: 190] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
While a large variety of conjugated polymers exist, polydiacetylenes (PDAs) remain a major research area among scientists due to their interesting optical, spectral, electronic, and structural properties. Heavily reviewed in regards to their stimuli responsive properties, much is known about the assortment of sensing and detection capabilities of PDAs. In this article, we look more upon the structural diversities of polydiacetylenes that have been achieved in recent years, particularly from a hierarchical perspective of 1, 2, and 3-dimensional configurations. In addition, we examine how these different dimensional arrangements of PDAs have heralded clear applications in several key areas. Successful integration of these stimuli-responsive "smart" materials into various geometries has required researchers to have a comprehensive understanding of both the fabrication and synthesis processes, as well as the signalling mechanism for the optical, fluorogenic or spectral transitions. The on-going discovery of new PDA formulations continues to provide interesting structural manifestations such as liposomes, tubes, fibres, organic/inorganic incorporated hybrids and composite structures. By highlighting some of the recent conceptual and technological developments, we hope to provide a measure of the current pace in new PDA derivative development as core components in efficient sensor, imaging and display systems.
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Affiliation(s)
- Oktay Yarimaga
- Institute of Nanoscience and Technology, Hanyang University, Seoul 133-791, Korea
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21
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Yoon B, Ham DY, Yarimaga O, An H, Lee CW, Kim JM. Inkjet printing of conjugated polymer precursors on paper substrates for colorimetric sensing and flexible electrothermochromic display. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:5492-7. [PMID: 22052793 DOI: 10.1002/adma.201103471] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 09/26/2011] [Indexed: 05/22/2023]
Abstract
Inkjet-printable aqueous suspensions of conjugated polymer precursors are developed for fabrication of patterned color images on paper substrates. Printing of a diacetylene (DA)-surfactant composite ink on unmodified paper and photopaper, as well as on a banknote, enables generation of latent images that are transformed to blue-colored polydiacetylene (PDA) structures by UV irradiation. Both irreversible and reversible thermochromism with the PDA printed images are demonstrated and applied to flexible and disposable sensors and to displays.
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Affiliation(s)
- Bora Yoon
- Department of Chemical Engineering, Hanyang University, Seoul, Korea
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22
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Araghi HY, Paige MF. Deposition and photopolymerization of phase-separated perfluorotetradecanoic acid-10,12-pentacosadiynoic acid Langmuir-Blodgett monolayer films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:10657-10665. [PMID: 21761852 DOI: 10.1021/la201773e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Mixed monolayer surfactant films of perfluorotetradecanoic acid and the photopolymerizable diacetylene molecule 10,12-pentacosadiynoic acid were prepared at the air-water interface and transferred onto solid supports via Langmuir-Blodgett (LB) deposition. The addition of the perfluoroacid to the diacetylene surfactant results in enhanced stabilization of the monolayer in comparison with the pure diacetylene alone, allowing film transfer onto a solid substrate without resorting to addition of cations in the subphase or photopolymerization prior to deposition. The resulting LB films consisted of well-defined phase-separated domains of the two film components, and the films were characterized by a combination of atomic force microscope (AFM) imaging and fluorescence emission microscopy both before and after photopolymerization into the highly emissive "red form" of the polydiacetylene. Photopolymerization of the monolayer films resulted in the formation of diacetylene bilayers, which were highly fluorescent, with the apparent rate of photopolymerization and the fluorescence emission of the films being largely unaffected by the presence of the perfluoroacid.
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Affiliation(s)
- Hessamaddin Younesi Araghi
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada
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23
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Yarimaga O, Lee S, Ham DY, Choi JM, Kwon SG, Im M, Kim S, Kim JM, Choi YK. Thermofluorescent Conjugated Polymer Sensors for Nano- and Microscale Temperature Monitoring. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201100099] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Lee J, Balakrishnan S, Cho J, Jeon SH, Kim JM. Detection of adulterated gasoline using colorimetric organic microfibers. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02287j] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Paul BK, Guchhait N. A spectral deciphering of the binding interaction of an intramolecular charge transfer fluorescence probe with a cationic protein: thermodynamic analysis of the binding phenomenon combined with blind docking study. Photochem Photobiol Sci 2011; 10:980-91. [DOI: 10.1039/c0pp00309c] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Yarimaga O, Yoon B, Ham DY, Lee J, Hara M, Choi YK, Kim JM. Electrophoretic deposition of amphiphilic diacetylene supramolecules: polymerization, selective immobilization, pattern transfer and sensor applications. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm13764f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Kim G, Song S, Lee J, Kim JM. Size-controlled fabrication of supramolecular vesicles for the construction of conjugated polymer sensors with enhanced optical properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:17840-17842. [PMID: 21053986 DOI: 10.1021/la103920p] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polymerizable supramolecular monomer vesicles are readily fabricated by employing a hydrodynamic focusing method on a microfluidic chip. The polymerized diacetylenene nanovesicles, generated using the microfluidic method, display an improved fluorescence property compared to those prepared by employing a conventional bulk method. The flexibility of the vesicle size control by manipulating the flow conditions is another significant feature of the new microfluidic approach.
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Affiliation(s)
- Gangjune Kim
- Department of Mechanical Engineering, Hanyang University, Seoul 133-791, Korea
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28
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Zhou C, Rajasekaran PR, Wolff J, Li X, Kohli P. Photo-pens: a simple and versatile tool for maskless photolithography. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:17726-32. [PMID: 20886901 PMCID: PMC2978279 DOI: 10.1021/la1028433] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We demonstrate conical pores etched in tracked glass chips for fabricating patterns at the micrometer scale. Highly fluorescent patterns based on photopolymerization of diacetylene films were formed by irradiating UV light through conical pores called "photo-pens". The properties of photopens were investigated through experiments, finite-difference-time-domain (FDTD) simulations and numerical calculations based on Fresnel equations. We show that the pattern dimensions are easily controlled by adjusting the exposure time. Thus, patterns with a range of dimensions can be fabricated without any need of changes in the pore diameter. Parallel patterning was also demonstrated by simultaneously exposing the films to photons through multiple pores in the chip. Our method provides an inexpensive, versatile, and efficient way for patterning without the use of sophisticated masks.
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Affiliation(s)
- Chuanhong Zhou
- Department of Chemistry & Biochemistry, Southern Illinois University, Carbondale, IL 62901
| | | | - Justin Wolff
- Department of Chemistry & Biochemistry, Southern Illinois University, Carbondale, IL 62901
| | - Xuelian Li
- Department of Chemistry & Biochemistry, Southern Illinois University, Carbondale, IL 62901
| | - Punit Kohli
- Department of Chemistry & Biochemistry, Southern Illinois University, Carbondale, IL 62901
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29
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Paul BK, Samanta A, Guchhait N. Implication toward a Simple Strategy To Generate Efficiency-Tunable Fluorescence Resonance Energy Transfer Emission: Intertwining Medium-Polarity-Sensitive Intramolecular Charge Transfer Emission to Fluorescence Resonance Energy Transfer. J Phys Chem A 2010; 114:6097-102. [DOI: 10.1021/jp101862w] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Bijan Kumar Paul
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Calcutta-700009, India
| | - Anuva Samanta
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Calcutta-700009, India
| | - Nikhil Guchhait
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Calcutta-700009, India
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30
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Yoon B, Lee S, Kim JM. Recent conceptual and technological advances in polydiacetylene-based supramolecular chemosensors. Chem Soc Rev 2009; 38:1958-68. [PMID: 19551176 DOI: 10.1039/b819539k] [Citation(s) in RCA: 194] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Owing to the color (blue-to-red) and fluorescence (non-to-fluorescent) changes that take place in response to environmental perturbations, conjugated polydiacetylenes (PDAs) have been actively employed as sensory materials for the detection of biologically-, environmentally- and chemically-important target molecules. Until recently, the majority of PDA sensors have been prepared in the form of aqueous suspensions or Langmuir-type thin films on solid substrates. In order to overcome the limitations associated with conventional solution/film sensors, conceptually new formats, such as immobilized PDAs in and on solid substrates, microarrayed PDA sensors, microfluidic PDA sensors, as well as PDA-embedded electrospun fiber sensors and resonance energy transfer (RET)-based PDA sensors, have been developed recently. In this tutorial review, the recent conceptual and technological achievements made in the area of conjugated PDA chemosensors are described.
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Affiliation(s)
- Bora Yoon
- Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea
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31
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Azagarsamy MA, Gomez-Escudero A, Yesilyurt V, Vachet RW, Thayumanavan S. Amphiphilic nanoassemblies for the detection of peptides and proteins using fluorescence and mass spectrometry. Analyst 2009; 134:635-49. [DOI: 10.1039/b818484d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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32
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Gatebe E, Herron H, Zakeri R, Ramiah Rajasekaran P, Aouadi S, Kohli P. Synthesis and characterization of polydiacetylene films and nanotubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:11947-54. [PMID: 18823090 PMCID: PMC2683165 DOI: 10.1021/la801948z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
We report here the synthesis and characterization of polydiacetylene (PDA) films and nanotubes using layer-by-layer (LBL) chemistry. 10,12-Docosadiyndioic acid (DCDA) monomer was self-assembled on flat surfaces and inside of nanoporous alumina templates. UV irradiation of DCDA provided polymerized-DCDA (PDCDA) films and nanotubes. We have used zirconium-carboxylate interlayer chemistry to synthesize PDCDA multilayers on flat surfaces and in nanoporous template. PDCDA multilayers were characterized using optical (UV-vis, fluorescence, ellipsometry, FTIR) spectroscopies, ionic current-voltage ( I- V) analysis, and scanning electron microscopy. Ellipsometry, FTIR, electronic absorption and emission spectroscopies showed a uniform DCDA deposition at each deposition cycle. Our optical spectroscopic analysis indicates that carboxylate-zirconium interlinking chemistry is robust. To explain the disorganization in the alkyl portion of PDCDA multilayer films, we propose carboxylate-zirconium interlinkages act as "locks" in between PDCDA layers which restrict the movement of alkyl portion in the films. Because of this locking, the induced-stresses in the polymer chains can not be efficiently relieved. Our ionic resistance data from I- V analysis correlate well with calculated resistance at smaller number of PDCDA layers but significantly deviated for thicker PDCDA nanotubes. These differences were attributed to ion-blocking because some of the PDCDA nanotubes were totally closed and the nonohmic and permselective ionic behaviors when the diameter of the pores approaches the double-layer thickness of the solution inside of the nanotubes.
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Affiliation(s)
- Erastus Gatebe
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901, USA.
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33
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Li X, Matthews S, Kohli P. Fluorescence resonance energy transfer in polydiacetylene liposomes. J Phys Chem B 2008; 112:13263-72. [PMID: 18816092 DOI: 10.1021/jp804640p] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Conjugated polydiacetylene (PDA) possessing stimuli-responsive properties has been intensively investigated for developing efficient sensors. We report here fluorescence resonance energy transfer (FRET) in liposomes synthesized using different molar ratios of dansyl-tagged diacetylene and diacetylene-carboxylic acid monomers. Photopolymerization of diacetylene resulted in cross-linked PDA liposomes. We used steady-state electronic absorption, emission, and fluorescence anisotropy (FA) analysis to characterize the thermal-induced FRET between dansyl fluorophores (donor) and PDA (acceptor). We found that the monomer ratio of acceptor to donor ( R ad) and length of linkers (functional part that connects dansyl fluorophores to the diacetylene group in the monomer) strongly affected FRET. For R ad = 10 000, the acceptor emission intensity was amplified by more than 18 times when the liposome solution was heated from 298 to 338 K. A decrease in R ad resulted in diminished acceptor emission amplification. This was primarily attributed to lower FRET efficiency between donors and acceptors and a higher background signal. We also found that the FRET amplification of PDA emissions after heating the solution was much higher when dansyl was linked to diacetylene through longer and flexible linkers than through shorter linkers. We attributed this to insertion of dansyl in the bilayer of the liposomes, which led to an increased dansyl quantum yield and a higher interaction of multiple acceptors with limited available donors. This was not the case for shorter and more rigid linkers where PDA amplification was much smaller. The present studies aim at enhancing our understanding of FRET between fluorophores and PDA-based conjugated liposomes. Furthermore, receptor tagged onto PDA liposomes can interact with ligands present on proteins, enzymes, and cells, which will produce emission sensing signal. Therefore, using the present approach, there exist opportunities for designing FRET-based highly sensitive and selective chemical and biochemical sensors.
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Affiliation(s)
- Xuelian Li
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901, USA
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34
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Ahn DJ, Kim JM. Fluorogenic polydiacetylene supramolecules: immobilization, micropatterning, and application to label-free chemosensors. Acc Chem Res 2008; 41:805-16. [PMID: 18348539 DOI: 10.1021/ar7002489] [Citation(s) in RCA: 288] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This Account describes a new strategy for the preparation of label-free sensor systems based on the fluorogenic properties of the conjugated polymer, polydiacetylene (PDA). PDA has been extensively investigated as a sensor matrix, owing to a brilliant blue-to-red color transition that takes place in response to environmental perturbations. It has been known for some time that "blue-phase" PDAs are nonfluorescent while their "red-phase" counterparts fluoresce. For the most part, however, the significance of the different fluorogenic properties of PDAs has been ignored in the context of sensor applications. In the course of developing PDA-based sensors, we discovered that PDA vesicles can be readily immobilized on solid substrates. This is an attractive property of PDAs since it leads to the combined advantages of the vesicle sensors (which have three-dimensional interactions between sensor and target molecules) and film sensors (which are applicable to a two-dimensional array or chip format). Stable blue-phase immobilized PDAs can be prepared by employing one of three strategies involving the formation of covalent adducts, biotin-avidin complexes, or complexes formed through nonspecific physical adsorption. A procedure for generating well-patterned fluorescence images is necessary for the immobilized PDAs to function in chip-based sensor systems. Patterned fluorescence images are readily constructed by employing (1) the photolithographic technique, (2) the micromolding in capillaries (MIMIC) method, or (3) an array spotting system. Heat treatment of the patterned "blue-phase" PDA vesicles transforms the nonfluorescent images into their fluorescent red forms. The observation that finely resolved fluorescence patterns can be generated by heat treatment of microarrayed PDAs is highly significant in that it indicates that fluorescence signals might be produced by specific molecular recognition events. Indeed, red fluorescence emission is observed when immobilized PDAs are subjected to specific molecular recognition events, such as ligand--cyclodextrin or protein-protein interactions. The facile immobilization of PDA vesicles on solid substrates and the affinity-induced fluorescence emission combine to make this system applicable to the fabrication of label-free PDA sensors. Since in theory any molecular recognition event that promotes the blue-to-red color transition of PDAs should result in the generation of fluorescence, it should be possible to reformat a variety of previously described colorimetric PDA sensors into fluorescence-based sensor systems. The fluorescence properties of PDAs, when combined with modern methods for the fabrication of microarrays, should stimulate the development of a number of new label-free chemosensor systems.
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Affiliation(s)
- Dong June Ahn
- Department of Chemical and Biological Engineering, Korea University, Seoul 136-701, Korea
| | - Jong-Man Kim
- Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea
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35
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Enhancing the Emission of Polydiacetylene Sensing Materials Through Fluorophore Addition and Energy Transfer. J Fluoresc 2007; 18:461-71. [DOI: 10.1007/s10895-007-0287-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Accepted: 11/12/2007] [Indexed: 10/22/2022]
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36
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Guo C, Zhang R, Jiang L, Liu T. Investigation on the temperature effect of a mixed vesicle composed of polydiacetylene and BODIPY 558. Colloids Surf B Biointerfaces 2007; 60:41-5. [PMID: 17629681 DOI: 10.1016/j.colsurfb.2007.05.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2007] [Revised: 05/25/2007] [Accepted: 05/25/2007] [Indexed: 11/16/2022]
Abstract
BODIPY 558 is an insensitive fluorescent reagent to temperature. But when it is inserted into polydiacetylene (PDA) vesicles, the resultant complex presents a considerable temperature effect. In this article, we reported the temperature-dependent fluorescence intensity of a vesicle-based sensor constructed by PDA and BODIPY fluorescent probe. The fluorescence of BODIPY was considerably quenched in the polymerized diacetylene lipid membrane, but recovered by increasing the temperature of vesicle solution. The mechanism of quenching was detailedly investigated, and we deduced that the fluorescence quenching and recovery were associated with the conjugated conformation of the PDA backbone.
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Affiliation(s)
- Caixin Guo
- Key Laboratory of Colloid and Interface Science, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Science, Beijing 100080, PR China
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37
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Park H, Lee S, Kim JM. Photopolymerization of and patterned fluorescence imaging with a bispyrenyl group-containing diacetylene. Photochem Photobiol Sci 2007; 6:1057-60. [PMID: 17914478 DOI: 10.1039/b702466e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photopolymerization of a diacetylene monomer having terminal pyrene groups afforded formation of polydiacetylene nanoparticles in aqueous solvent along with fluorescence quenching of pyrene moieties.
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Affiliation(s)
- Hyunwook Park
- Department of Chemical Engineering, Hanyang University, Seoul, 133-791, Korea
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38
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Park KH, Lee JS, Park H, Oh EH, Kim JM. Vancomycin-induced morphological transformation of self-assembled amphiphilic diacetylene supramolecules. Chem Commun (Camb) 2007:410-2. [PMID: 17220987 DOI: 10.1039/b615626f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reversible ribbon-sphere microstructural transformation of dipeptide-containing diacetylene supramolecules was observed by specific ligand-receptor interactions.
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Affiliation(s)
- Kun Ha Park
- Department of Chemical Engineering, Hanyang University, Seoul, 133-791, Korea
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