1
|
Luo SXL, Swager TM. Wireless Detection of Trace Ammonia: A Chronic Kidney Disease Biomarker. ACS NANO 2024; 18:364-372. [PMID: 38147595 DOI: 10.1021/acsnano.3c07325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Elevated levels of ammonia in breath can be linked to medical complications, such as chronic kidney disease (CKD), that disturb the urea balance in the body. However, early stage CKD is usually asymptomatic, and mass screening is hindered by high instrumentation and operation requirements and accessible and reliable detection methods for CKD biomarkers, such as trace ammonia in breath. Enabling methods would have significance in population screening for early stage CKD patients. We herein report a method to effectively immobilize transition metal selectors in close proximity to a single-walled carbon nanotube (SWCNT) surface using pentiptycene polymers containing metal-chelating backbone structures. The robust and modular nature of the pentiptycene metallopolymer/SWCNT complexes creates a platform that accelerates sensor discovery and optimization. Using these methods, we have identified sensitive, selective, and robust copper-based chemiresistive ammonia sensors that display low parts per billion detection limits. We have added these hybrid materials to the resonant radio frequency circuits of commercial near-field communication (NFC) tags to achieve robust wireless detection of ammonia at physiologically relevant levels. The integrated devices offer a noninvasive and cost-effective approach for early detection and monitoring of CKD.
Collapse
Affiliation(s)
- Shao-Xiong Lennon Luo
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Timothy M Swager
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
2
|
Sugita H, Kamigawara T, Miyazaki S, Shimada R, Katoh T, Ohta Y, Yokozawa T. Intramolecular Palladium Catalyst Transfer on Benzoheterodiazoles as Acceptor Monomers and Discovery of Catalyst Transfer Inhibitors. Chemistry 2023; 29:e202301242. [PMID: 37302983 DOI: 10.1002/chem.202301242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/13/2023]
Abstract
Intramolecular catalyst transfer on benzoheterodiazoles was investigated in Suzuki-Miyaura coupling reactions and polymerization reactions with t Bu3 PPd precatalyst. In the coupling reactions of dibromobenzotriazole, dibromobenzoxazole, and dibromobenzothiadiazole with pinacol phenylboronate, the product ratios of monosubstituted product to disubstituted product were 0/100, 27/73, and 89/11, respectively, indicating that the Pd catalyst undergoes intramolecular catalyst transfer on dibromobenzotriazole, whereas intermolecular transfer occurs in part in the case of dibromobenzoxazole and is predominant for dibromobenzothiadiazole. The polycondensation of 1.3 equivalents of dibromobenzotriazole with 1.0 equivalent of para- and meta-phenylenediboronates afforded high-molecular-weight polymer and cyclic polymer, respectively. In the case of dibromobenzoxazole, however, para- and meta-phenylenediboronates afforded moderate-molecular-weight polymer with bromine at both ends and cyclic polymer, respectively. In the case of dibromobenzothiadiazole, they afforded low-molecular-weight polymers with bromine at both ends. Addition of benzothiadiazole derivatives interfered with catalyst transfer in the coupling reactions.
Collapse
Affiliation(s)
- Hajime Sugita
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan
| | - Takeru Kamigawara
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan
| | - Sou Miyazaki
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan
| | - Ryusuke Shimada
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan
| | - Takayoshi Katoh
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan
| | - Yoshihiro Ohta
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan
| | - Tsutomu Yokozawa
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama, 221-8686, Japan
| |
Collapse
|
3
|
Concellón A, Castro-Esteban J, Swager TM. Ultratrace PFAS Detection Using Amplifying Fluorescent Polymers. J Am Chem Soc 2023; 145:11420-11430. [PMID: 37167538 DOI: 10.1021/jacs.3c03125] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Per- and poly(fluoroalkyl) substances (PFAS) are environmentally persistent pollutants that are of growing concern due to their detrimental effects at ultratrace concentrations (ng·L-1) in human and environmental health. Suitable technologies for on-site ultratrace detection of PFAS do not exist and current methods require complex and specialized equipment, making the monitoring of PFAS in distributed water infrastructures extremely challenging. Herein, we describe amplifying fluorescent polymers (AFPs) that can selectively detect perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) at concentrations of ng·L-1. The AFPs are highly fluorinated and have poly(p-phenylene ethynylene) and polyfluorene backbones bearing pyridine-based selectors that react with acidic PFAS via a proton-transfer reaction. The fluorinated regions within the polymers partition PFAS into polymers, whereas the protonated pyridine units create lower-energy traps for the excitons, and emission from these pyridinium sites results in red-shifting of the fluorescence spectra. The AFPs are evaluated in thin-film and nanoparticle forms and can selectively detect PFAS concentrations of ∼1 ppb and ∼100 ppt, respectively. Both polymer films and nanoparticles are not affected by the type of water, and similar responses to PFAS were found in milliQ water, DI water, and well water. These results demonstrate a promising sensing approach for on-site detection of aqueous PFAS in the ng·L-1 range.
Collapse
Affiliation(s)
- Alberto Concellón
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Jesús Castro-Esteban
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
4
|
Coban B, Saka E, Yıldız U, Akkoç S. DNA Interactions and Antiproliferative Activity Studies of Octahedral Nickel Complexes of Two Extended Phenanthrolines. ChemistrySelect 2021. [DOI: 10.1002/slct.202102376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Burak Coban
- Department of Chemistry Faculty of Arts and Sciences Zonguldak Bülent Ecevit University Zonguldak 67100 Turkey
| | - Engin Saka
- Department of Chemistry Faculty of Arts and Sciences Zonguldak Bülent Ecevit University Zonguldak 67100 Turkey
| | - Ufuk Yıldız
- Department of Chemistry Faculty of Arts and Sciences Zonguldak Bülent Ecevit University Zonguldak 67100 Turkey
| | - Senem Akkoç
- Department of Basic Pharmaceutical Sciences Faculty of Pharmacy Süleyman Demirel University Isparta 32260 Turkey
| |
Collapse
|
5
|
Benzothiadiazole-based Conjugated Polymers for Organic Solar Cells. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2537-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
Gon M, Wakabayashi J, Nakamura M, Tanaka K, Chujo Y. Preparation of Near‐Infrared Emissive π‐Conjugated Polymer Films Based on Boron‐Fused Azobenzene Complexes with Perpendicularly Protruded Aryl Substituents. Macromol Rapid Commun 2020; 42:e2000566. [DOI: 10.1002/marc.202000566] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/19/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Masayuki Gon
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Junko Wakabayashi
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Masashi Nakamura
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| |
Collapse
|
7
|
Tailoring optoelectronic properties of thieno[3,2-b]thiophene comprising homopolymers via electron acceptor moieties: thienopyrrolodione, 2,1,3-benzoselenadiazole, isoindigo. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
8
|
Luo SXL, Lin CJ, Ku KH, Yoshinaga K, Swager TM. Pentiptycene Polymer/Single-Walled Carbon Nanotube Complexes: Applications in Benzene, Toluene, and o-Xylene Detection. ACS NANO 2020; 14:7297-7307. [PMID: 32510203 PMCID: PMC7370303 DOI: 10.1021/acsnano.0c02570] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We report the dispersion of single-walled carbon nanotubes (SWCNTs) using pentiptycene polymers and their use in chemiresistance-based and QCM-D sensors. Poly(p-phenylene ethynylene)s (PPEs) incorporating pentiptycene moieties present a concave surface that promotes π-π interactions and van der Waals interactions with SWCNTs. In contrast to more common polymer-dispersing mechanisms that involve the wrapping of polymers around the SWCNTs, we conclude that the H-shape of pentiptycene groups and the linear rigid-rod structure creates a slot for nanotube binding. UV-vis-NIR, Raman, and fluorescence spectra and TEM images of polymer/SWCNTs support this dispersion model, which shows size selectivity to SWCNTs with diameters of 0.8-0.9 nm. Steric bulk on the channels is problematic, and tert-butylated pentiptycenes do not form stable dispersions with SWCNTs. This result, along with the diameter preference, supports the model in which the SWCNTs are bound to the concave clefts of the pentiptycenes. The binding model suggests that the polymer/SWCNTs complex creates galleries, and we have demonstrated the binding of benzene, toluene, and o-xylene (BTX) vapors as the basis for a robust, sensitive, and selective sensing platform for BTX detection. The utility of our sensors is demonstrated by the detection of benzene at the OSHA short-term exposure limit of 5 ppm in air.
Collapse
Affiliation(s)
- Shao-Xiong Lennon Luo
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Che-Jen Lin
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Kang Hee Ku
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Kosuke Yoshinaga
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Timothy M. Swager
- Department of Chemistry and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
9
|
Frizon TEA, Vieira AA, da Silva FN, Saba S, Farias G, de Souza B, Zapp E, Lôpo MN, Braga HDC, Grillo F, Curcio SF, Cazati T, Rafique J. Synthesis of 2,1,3-Benzoxadiazole Derivatives as New Fluorophores-Combined Experimental, Optical, Electro, and Theoretical Study. Front Chem 2020; 8:360. [PMID: 32478032 PMCID: PMC7235381 DOI: 10.3389/fchem.2020.00360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 04/07/2020] [Indexed: 01/04/2023] Open
Abstract
Herein, we report the synthesis and characterization of fluorophores containing a 2,1,3-benzoxadiazole unit associated with a π-conjugated system (D-π-A-π-D). These new fluorophores in solution exhibited an absorption maximum at around ~419 nm (visible region), as expected for electronic transitions of the π-π* type (ε ~2.7 × 107 L mol-1 cm-1), and strong solvent-dependent fluorescence emission (ΦFL ~0.5) located in the bluish-green region. The Stokes' shift of these compounds is ca. 3,779 cm-1, which was attributed to an intramolecular charge transfer (ICT) state. In CHCl3 solution, the compounds exhibited longer and shorter lifetimes, which was attributed to the emission of monomeric and aggregated molecules, respectively. Density functional theory was used to model the electronic structure of the compounds 9a-d in their excited and ground electronic states. The simulated emission spectra are consistent with the experimental results, with different solvents leading to a shift in the emission peak and the attribution of a π-π* state with the characteristics of a charge transfer excitation. The thermal properties were analyzed by thermogravimetric analysis, and a high maximum degradation rate occurred at around 300°C. Electrochemical studies were also performed in order to determine the band gaps of the molecules. The electrochemical band gaps (2.48-2.70 eV) showed strong correlations with the optical band gaps (2.64-2.67 eV).
Collapse
Affiliation(s)
- Tiago E. A. Frizon
- Department of Energy and Sustainability, Federal University of Santa Catarina, Araranguá, Brazil
| | - André A. Vieira
- Institute of Chemistry, Federal University of Bahia, Salvador, Brazil
| | | | - Sumbal Saba
- Center for Natural and Human Sciences-CCNH, Federal University of ABC, Santo André, Brazil
| | - Giliandro Farias
- Chemistry Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Bernardo de Souza
- Chemistry Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Eduardo Zapp
- Department of Exact Sciences and Education, Federal University of Santa Catarina, Blumenau, Brazil
| | - Michell N. Lôpo
- Institute of Chemistry, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Hugo de C. Braga
- Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, Brazil
| | - Felipe Grillo
- Department of Materials and Metallurgy, Federal Institute of Espírito Santo, Vitória, Brazil
| | - Sergio F. Curcio
- Physics Department, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Thiago Cazati
- Physics Department, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Jamal Rafique
- Institute of Chemistry, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| |
Collapse
|
10
|
Chiu C, Yang J. Photoluminescent and Photoresponsive Iptycene‐Incorporated π‐Conjugated Systems: Fundamentals and Applications. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.201900300] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Chun‐Wei Chiu
- Department of ChemistryNational Taiwan University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Jye‐Shane Yang
- Department of ChemistryNational Taiwan University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| |
Collapse
|
11
|
Alkan EA, Goker S, Sarigul H, Yıldırım E, Udum YA, Toppare L. The impact of [1,2,5]chalcogenazolo[3,4‐
f
]‐benzo[1,2,3]triazole structure on the optoelectronic properties of conjugated polymers. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190275] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ecem Aydan Alkan
- Department of ChemistryMiddle East Technical University Ankara Turkey
| | - Seza Goker
- Department of ChemistryMiddle East Technical University Ankara Turkey
- Solid Propellant DepartmentRoketsan Missiles Inc. Ankara Turkey
| | - Hatice Sarigul
- Department of ChemistryMiddle East Technical University Ankara Turkey
| | - Erol Yıldırım
- Department of ChemistryMiddle East Technical University Ankara Turkey
- Department of Polymer Science and TechnologyMiddle East Technical University Ankara Turkey
| | | | - Levent Toppare
- Department of ChemistryMiddle East Technical University Ankara Turkey
- Department of Polymer Science and TechnologyMiddle East Technical University Ankara Turkey
- The Center for Solar Energy Research and Application (GUNAM)Middle East Technical University Ankara Turkey
- Department of BiotechnologyMiddle East Technical University Ankara Turkey
| |
Collapse
|
12
|
Zhang K, Tkachov R, Ditte K, Kiriy N, Kiriy A, Voit B. AB- Versus AA+BB-Suzuki Polycondensation: A Palladium/Tris(tert-butyl)phosphine Catalyst Can Outperform Conventional Catalysts. Macromol Rapid Commun 2019; 41:e1900521. [PMID: 31788895 DOI: 10.1002/marc.201900521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/03/2019] [Indexed: 11/09/2022]
Abstract
A Pd/Pt-Bu3 catalyst having bulky, electron-rich ligands significantly outperforms conventional "step-growth catalysts" Pd(PPh3 )4 and Pd(Po-Tol3 )3 in the Suzuki polycondensation of the AB-type arylene-based monomers, such as some of the substituted fluorenes, carbazoles, and phenylenes. In the AA+BB polycondensation, Pd/Pt-Bu3 also performs better under homogeneous reaction conditions, in combination with the organic base Et4 NOH. The superior performance of Pd/Pt-Bu3 is discussed in terms of its higher reactivity in the oxidative addition step and inherent advantages of the intramolecular catalyst transfer, which is a key step joining catalytic cycles of the AB-polycondensation. These findings are applied to the synthesis of a carbazole-based copolymer designed for the use as a hole conductor in solution-processed organic light-emitting diodes.
Collapse
Affiliation(s)
- Kenan Zhang
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Roman Tkachov
- Fraunhofer-Institut für Werkstoff- und Strahltechnik, Winterbergstr. 28, 01277, Dresden, Germany
| | - Kristina Ditte
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Nataliya Kiriy
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Anton Kiriy
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany
| | - Brigitte Voit
- Leibniz Institute of Polymer Research Dresden, Hohe Straße 6, 01069, Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, 01062, Dresden, Germany
| |
Collapse
|
13
|
Maduwu RD, Jin HC, Kim JH. Synthesis and Characterization of Benzothiadiazole and Dicyanovinylindandione Based Small-Molecular Conjugated Materials and Their Photovoltaic Properties. Macromol Res 2019. [DOI: 10.1007/s13233-019-7174-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
14
|
Tsai WK, Wang CI, Liao CH, Yao CN, Kuo TJ, Liu MH, Hsu CP, Lin SY, Wu CY, Pyle JR, Chen J, Chan YH. Molecular design of near-infrared fluorescent Pdots for tumor targeting: aggregation-induced emission versus anti-aggregation-caused quenching. Chem Sci 2019; 10:198-207. [PMID: 30713631 PMCID: PMC6333168 DOI: 10.1039/c8sc03510e] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/03/2018] [Indexed: 02/06/2023] Open
Abstract
Semiconducting polymer dots (Pdots) have recently emerged as a new type of ultrabright fluorescent probe that has been proved to be very useful for biomedical imaging. However, Pdots often suffer from serious fluorescence aggregation-caused quenching (ACQ) especially for near-infrared (NIR) fluorescent Pdots. This article compared two strategies to overcome the ACQ effect in near-infrared emissive Pdot systems: aggregation-induced emission (AIE) and anti-aggregation-caused quenching (anti-ACQ). The results show that the anti-ACQ platform outperforms the AIE system. The fluorescence quantum yield of anti-ACQ-based Pdots can be over 50% and the average per-particle brightness of the Pdots is about 5 times higher than that of the commercially available quantum dots. To help understand why the monomer conformations could greatly affect the optical properties of Pdots, molecular dynamics simulations were performed for the first time in such complicated Pdot systems. To demonstrate applications for in vivo fluorescence imaging, both microangiography imaging on living zebrafish embryos and specific tumor targeting on mice were performed. We anticipate that these studies will pave the way for the design of new highly fluorescent Pdot systems.
Collapse
Affiliation(s)
- Wei-Kai Tsai
- Department of Chemistry , National Sun Yat-sen University , 70 Lien Hai Road , Kaohsiung , Taiwan 80424
| | - Chun-I Wang
- Institute of Biomedical Engineering and Nanomedicine , National Health Research Institutes , 35 Keyan Road, Zhunan , Taiwan 35053
| | - Chia-Hsien Liao
- Department of Chemistry , National Sun Yat-sen University , 70 Lien Hai Road , Kaohsiung , Taiwan 80424
| | - Chun-Nien Yao
- Institute of Biomedical Engineering and Nanomedicine , National Health Research Institutes , 35 Keyan Road, Zhunan , Taiwan 35053
| | - Tsai-Jhen Kuo
- Department of Chemistry , National Sun Yat-sen University , 70 Lien Hai Road , Kaohsiung , Taiwan 80424
| | - Ming-Ho Liu
- Department of Chemistry , National Sun Yat-sen University , 70 Lien Hai Road , Kaohsiung , Taiwan 80424
| | - Chao-Ping Hsu
- Institute of Chemistry , Academia Sinica , Taipei , Taiwan 115
| | - Shu-Yi Lin
- Institute of Biomedical Engineering and Nanomedicine , National Health Research Institutes , 35 Keyan Road, Zhunan , Taiwan 35053
| | - Chang-Yi Wu
- Department of Biological Sciences , National Sun Yat-sen University , 70 Lien Hai Road , Kaohsiung , Taiwan 80424
| | - Joseph R Pyle
- Department of Chemistry & Biochemistry , Ohio University , Athens , Ohio 45701 , USA
| | - Jixin Chen
- Department of Chemistry & Biochemistry , Ohio University , Athens , Ohio 45701 , USA
| | - Yang-Hsiang Chan
- Department of Applied Chemistry , National Chiao Tung University , Hsinchu , Taiwan 30050 .
| |
Collapse
|
15
|
Poly(azomethine)s Anchored by Cresol and Pyrrole Units: Synthesis, Characterization and Spectroscopy Studies. Macromol Res 2018. [DOI: 10.1007/s13233-019-7034-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
16
|
Sheng J, He R, Xue J, Wu C, Qiao J, Chen C. Cu-Catalyzed π-Core Evolution of Benzoxadiazoles with Diaryliodonium Salts for Regioselective Synthesis of Phenazine Scaffolds. Org Lett 2018; 20:4458-4461. [PMID: 30040430 DOI: 10.1021/acs.orglett.8b01748] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Cu-catalyzed regioselective synthesis of phenazine N-oxides was realized from benzoxadiazoles and diaryliodonium salts. The process was initiated by the electrophilic arylation of benzoxadiazoles with diaryliodonium salts and followed by benzocyclization reactions. The further reduction of N-oxides in situ to phenazine scaffolds and deviation to organic fluorescent materials were readily accomplished.
Collapse
Affiliation(s)
- Jinyu Sheng
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) & Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Ru He
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) & Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Jie Xue
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) & Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Chao Wu
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) & Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Juan Qiao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) & Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education) & Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| |
Collapse
|
17
|
Liu J, Cai X, Pan HC, Bandla A, Chuan CK, Wang S, Thakor N, Liao LD, Liu B. Molecular Engineering of Photoacoustic Performance by Chalcogenide Variation in Conjugated Polymer Nanoparticles for Brain Vascular Imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703732. [PMID: 29411945 DOI: 10.1002/smll.201703732] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/18/2017] [Indexed: 05/13/2023]
Abstract
As conjugated polymer nanoparticles (CPNs) have attracted growing interest as photoacoustic (PA) imaging contrast agents, revelation of the relationship between the molecular structure of conjugated polymers and PA property is highly in demand. Here, three donor-acceptor-structured conjugated polymer analogs are designed, where only a single heteroatom of acceptor units changes from oxygen to sulfur to selenium, allowing for systematic investigation of the molecular structure-PA property relationship. The absorption and PA spectra of these CPNs can be facilely tuned by changing the heteroatoms of the acceptor units. Moreover, the absorption coefficient, and in turn the PA signal intensity, decreases when the heteroatom changes from oxygen to sulfur to selenium. As these CPNs exhibit weak fluorescence and similar photothermal conversion efficiency (≈70%), their PA intensities are approximately proportional to their absorption coefficients. The in vivo brain vasculature imaging in this study also demonstrates this trend. This study provides a simple but efficient strategy to manipulate the PA properties of CPNs through changing the heteroatom at key positions.
Collapse
Affiliation(s)
- Jie Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5A Engineering Drive 1, Singapore, 117411
- Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Xiaolei Cai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5A Engineering Drive 1, Singapore, 117411
| | - Han-Chi Pan
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, 35 Keyan Rd., Zhunan Town, Miaoli County, 35053, Taiwan
| | - Aishwarya Bandla
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456
| | - Chan Kim Chuan
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456
| | - Shaowei Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5A Engineering Drive 1, Singapore, 117411
| | - Nitish Thakor
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, 35 Keyan Rd., Zhunan Town, Miaoli County, 35053, Taiwan
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 5A Engineering Drive 1, Singapore, 117411
| |
Collapse
|
18
|
Liu J, Evrard M, Cai X, Feng G, Tomczak N, Ng LG, Liu B. Organic nanoparticles with ultrahigh quantum yield and aggregation-induced emission characteristics for cellular imaging and real-time two-photon lung vasculature imaging. J Mater Chem B 2018; 6:2630-2636. [DOI: 10.1039/c8tb00386f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organic nanoparticles with a high quantum yield of 90% and aggregation-induced emission characteristics were prepared for cellular imaging and real-time two-photon vasculature imaging of the lungs.
Collapse
Affiliation(s)
- Jie Liu
- Department of Chemical and biomolecular Engineering
- National University of Singapore
- Singapore
| | - Maximilien Evrard
- Singapore Immunology Network (SIgN)
- Agency for Science Technology and Research (A*STAR)
- Biopolis
- Singapore
| | - Xiaolei Cai
- Department of Chemical and biomolecular Engineering
- National University of Singapore
- Singapore
| | - Guangxue Feng
- Department of Chemical and biomolecular Engineering
- National University of Singapore
- Singapore
| | - Nikodem Tomczak
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science Technology and Research (A*STAR)
- Fusionopolis
- Singapore
| | - Lai Guan Ng
- Singapore Immunology Network (SIgN)
- Agency for Science Technology and Research (A*STAR)
- Biopolis
- Singapore
| | - Bin Liu
- Department of Chemical and biomolecular Engineering
- National University of Singapore
- Singapore
- Singapore Immunology Network (SIgN)
- Agency for Science Technology and Research (A*STAR)
| |
Collapse
|
19
|
Idris I, Derridj F, Soulé JF, Doucet H. Palladium-Catalyzed Regioselective Direct Arylation of Benzofurazans at the C-4 Position. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700435] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Imane Idris
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1 “Organomet́alliques; Mateŕiaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
- Laboratoire de physique et chimie des Matériaux (LPCM); UMMTO University; BP 17 RP 15000 Tizi-Ouzou Algeria
| | - Fazia Derridj
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1 “Organomet́alliques; Mateŕiaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
- Laboratoire de physique et chimie des Matériaux (LPCM); UMMTO University; BP 17 RP 15000 Tizi-Ouzou Algeria
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1 “Organomet́alliques; Mateŕiaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1 “Organomet́alliques; Mateŕiaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
| |
Collapse
|
20
|
Gutierrez GD, Sazama GT, Wu T, Baldo MA, Swager TM. Red Phosphorescence from Benzo[2,1,3]thiadiazoles at Room Temperature. J Org Chem 2016; 81:4789-96. [PMID: 27211248 PMCID: PMC4892972 DOI: 10.1021/acs.joc.6b00789] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe the red phosphorescence exhibited by a class of structurally simple benzo[2,1,3]thiadiazoles at room temperature. The photophysical properties of these molecules in deoxygenated cyclohexane, including their absorption spectra, steady-state photoluminescence and excitation spectra, and phosphorescence lifetimes, are presented. Time-dependent density functional theory calculations were carried out to better understand the electronic excited states of these benzo[2,1,3]thiadiazoles and why they are capable of phosphorescence.
Collapse
Affiliation(s)
- Gregory D. Gutierrez
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Graham T. Sazama
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Tony Wu
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Marc A. Baldo
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Timothy M. Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| |
Collapse
|
21
|
Zhao J, Li Y, Hunt A, Zhang J, Yao H, Li Z, Zhang J, Huang F, Ade H, Yan H. A Difluorobenzoxadiazole Building Block for Efficient Polymer Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1868-1873. [PMID: 26689976 DOI: 10.1002/adma.201504611] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 10/29/2015] [Indexed: 06/05/2023]
Abstract
A difluorobenzoxadiazole building block is synthesized and utilized to construct a conjugated polymer leading to high-performance thick-film polymer solar cells with a V(OC) of 0.88 V and a power conversion efficiency of 9.4%. This new building block can be used in many possible polymer structures for various organic electro-nic applications.
Collapse
Affiliation(s)
- Jingbo Zhao
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Yunke Li
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Adrian Hunt
- Department of Physics and Organic and Carbon Electronics Laboratory (ORaCEL), North Carolina State University, Raleigh, NC, 27695, USA
| | - Jianquan Zhang
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Huatong Yao
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhengke Li
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jie Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Fei Huang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Harald Ade
- Department of Physics and Organic and Carbon Electronics Laboratory (ORaCEL), North Carolina State University, Raleigh, NC, 27695, USA
| | - He Yan
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
- The Hong Kong University of Science and Technology-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-Tech Park, Nanshan, Shenzhen, 518057, P. R. China
| |
Collapse
|
22
|
Gutierrez GD, Coropceanu I, Bawendi MG, Swager TM. A Low Reabsorbing Luminescent Solar Concentrator Employing π-Conjugated Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:497-501. [PMID: 26596854 DOI: 10.1002/adma.201504358] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 10/02/2015] [Indexed: 06/05/2023]
Abstract
A highly efficient thin-film luminescent solar concentrator (LSC) utilizing two π-conjugated polymers as antennae for small amounts of the valued perylene bisimide Lumogen F Red 305 is presented. The LSC exhibits high photoluminescence quantum yield, low reabsorption, and relatively low refractive indices for waveguide matching. A Monte Carlo simulation predicts the LSC to possess exceptionally high optical efficiencies on large scales.
Collapse
Affiliation(s)
- Gregory D Gutierrez
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Igor Coropceanu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Moungi G Bawendi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| |
Collapse
|
23
|
Sanmartín-Matalobos J, Fondo M, García-Deibe AM, Amoza M, Bermejo P, Domínguez MR, Mota AJ, Pérez-Lustres JL, Bhowmick S, Das N. Zinc-mediated diastereoselective assembly of a trinuclear circular helicate. RSC Adv 2016. [DOI: 10.1039/c6ra01783e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
We have designed a triptycene-based ditopic ligand H2L, which is able to adopt an adequate topology required for optimal binding to naked Zn2+ leading to a neutral trinuclear circular helicate Zn3L3.
Collapse
|
24
|
Kim HY, Choi MH, Han YW, Moon DK, Haw JR. Deep HOMO polymers comprising anthracene units for bulk heterojunction solar cells. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2015.10.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
25
|
Talbert W, Jones D, Morimoto J, Levine M. Turn-on detection of pesticides via reversible fluorescence enhancement of conjugated polymer nanoparticles and thin films. NEW J CHEM 2016. [DOI: 10.1039/c6nj00690f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pesticide detection via fluorescence enhancements of nanoparticles enables the sensitive and selective detection of DDT and its metabolites/co-occurring analogues.
Collapse
Affiliation(s)
- William Talbert
- Department of Chemistry
- University of Rhode Island
- Kingston
- USA
| | - Daniel Jones
- Department of Chemistry
- University of Rhode Island
- Kingston
- USA
| | - Joshua Morimoto
- Department of Chemistry
- University of Rhode Island
- Kingston
- USA
| | - Mindy Levine
- Department of Chemistry
- University of Rhode Island
- Kingston
- USA
| |
Collapse
|
26
|
Göker S, Hizalan G, Ileri M, Hacioglu SO, Toppare L. The effect of the different donor units on fluorescent conjugated polymers containing 2,1,3-benzooxadiazole as the acceptor unit. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.05.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
27
|
Wang L, Xie X, Shi S, Shi K, Mao Z, Zhang W, Wang H, Yu G. Synthesis, characterization, and field-effect properties of (E)-2-(2-(thiophen-2-yl)vinyl)thiophen-based donor–acceptor copolymers. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.05.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
28
|
Garrett GE, Gibson GL, Straus RN, Seferos DS, Taylor MS. Chalcogen bonding in solution: interactions of benzotelluradiazoles with anionic and uncharged Lewis bases. J Am Chem Soc 2015; 137:4126-33. [PMID: 25781631 DOI: 10.1021/ja512183e] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Chalcogen bonding is the noncovalent interaction between an electron-deficient, covalently bonded chalcogen (Te, Se, S) and a Lewis base. Although substantial evidence supports the existence of chalcogen bonding in the solid state, quantitative data regarding the strengths of the interactions in the solution phase are lacking. Herein, determinations of the association constants of benzotelluradiazoles with a variety of Lewis bases (Cl(-), Br(-), I(-), NO3(-) and quinuclidine, in organic solvent) are described. The participation of the benzotelluradiazoles in chalcogen bonding interactions was probed by UV-vis, (1)H and (19)F NMR spectroscopy as well as nano-ESI mass spectrometry. Trends in the free energy of chalcogen bonds upon variation of the donor, acceptor and solvent are evident from these data, including a linear free energy relationship between chalcogen bond donor ability and calculated electrostatic potential at the tellurium center. Calculations using the dispersion-corrected B97-D3 functional were found to give good agreement with the experimental free energies of chalcogen bonding.
Collapse
Affiliation(s)
- Graham E Garrett
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Gregory L Gibson
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Rita N Straus
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Dwight S Seferos
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| |
Collapse
|
29
|
Qin R, Jiang Y, Zhang K, Zhang H, Zhang Q, Li M, Ma H. Synthesis of two D-π-A polymers π-bridged by different blocks and investigation of their photovoltaic property. J Appl Polym Sci 2015. [DOI: 10.1002/app.41587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ruiping Qin
- College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province; Henan Normal University; Xinxiang 453007 China
| | - Yurong Jiang
- College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province; Henan Normal University; Xinxiang 453007 China
| | - Kaixuan Zhang
- College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province; Henan Normal University; Xinxiang 453007 China
| | - Haoxing Zhang
- College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province; Henan Normal University; Xinxiang 453007 China
| | - Qunying Zhang
- College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province; Henan Normal University; Xinxiang 453007 China
| | - Meng Li
- College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province; Henan Normal University; Xinxiang 453007 China
| | - Heng Ma
- College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province; Henan Normal University; Xinxiang 453007 China
| |
Collapse
|
30
|
Jeffries-EL M, Kobilka BM, Hale BJ. Optimizing the Performance of Conjugated Polymers in Organic Photovoltaic Cells by Traversing Group 16. Macromolecules 2014. [DOI: 10.1021/ma501236v] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Malika Jeffries-EL
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Brandon M. Kobilka
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Benjamin J. Hale
- Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| |
Collapse
|
31
|
Gonil P, Sajomsang W, Ruktanonchai UR, Na Ubol P, Treetong A, Opanasopit P, Puttipipatkhachorn S. Synthesis and fluorescence properties of N-substituted 1-cyanobenz[f]isoindole chitosan polymers and nanoparticles for live cell imaging. Biomacromolecules 2014; 15:2879-88. [PMID: 24956200 DOI: 10.1021/bm5004459] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Highly fluorescent N-substituted 1-cyanobenz[f]isoindole chitosans (CBI-CSs) with various degrees of N-substitution (DS) were synthesized by reacting chitosan (CS) with naphthalene-2,3-dicarboxaldehyde (NDA) in the presence of cyanide under mild acidic conditions. Introduction of 1-cyanobenz[f]isoindole moieties into the CS backbone resulted in lowering of polymer thermal stability and crystallinity. The fluorescence quantum yield (Φf) of CBI-CS was found to be DS- and molecular-weight-dependent, with Φf decreasing as DS and molecular weight were increased. At similar DS values, CBI-CS exhibited 26 times higher Φf in comparison with fluorescein isothiocyanate-substituted chitosan (FITC-CS). CBI-CS/TPP nanoparticles were fabricated using an ionotropic gelation method in which pentasodium triphosphate (TPP) acted as a cross-linking agent. CS and CBI-CS exhibited low cytotoxicity to normal skin fibroblast cells over a concentration range of 0.1-1000 μg/mL, while an increased cytotoxicity level was evident in CBI-CS/TPP nanoparticles at concentrations greater than 100 μg/mL. In contrast with CBI-CS polymers, the CBI-CS/TPP nanoparticles exhibited lower fluorescence; however, confocal microscopy results showed that living normal skin fibroblast cells became fluorescent on nanoparticle uptake. These results suggest that CBI-CS and fabricated nanoparticles thereof may be promising fluorescence probes for live cell imaging.
Collapse
Affiliation(s)
- Pattarapond Gonil
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) , 111 Thailand Science Park, Phahonyothin Road, Pathum Thani 12120, Thailand
| | | | | | | | | | | | | |
Collapse
|
32
|
Shi S, Shi K, Chen S, Qu R, Wang L, Wang M, Yu G, Li X, Wang H. Synthesis, characterization, and organic field-effect transistors study of conjugated D-A copolymers based on dialkylated naphtho[1,2-b:5,6-b
′]dithiophene/naphtho[1,2-b:5,6-b
′]difuran and benzodiathiazole/benzoxadiazole. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shaowei Shi
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
- Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
| | - Keli Shi
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Song Chen
- China Textile Academy; Beijing 100025 China
| | - Rui Qu
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
| | - Liwei Wang
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
| | - Meng Wang
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
| | - Gui Yu
- Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Xiaoyu Li
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
- Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
| | - Haiqiao Wang
- State Key Laboratory of Organic-Inorganic Composite, Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
- Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education, Beijing University of Chemical Technology; Beijing 100029 China
| |
Collapse
|
33
|
Zhang X, Gao Y, Li S, Shi X, Geng Y, Wang F. Synthesis of poly(5,6-difluoro-2,1,3-benzothiadiazole-alt-9,9-dioctyl-fluorene) via direct arylation polycondensation. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27251] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaojie Zhang
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Yao Gao
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Sida Li
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Xincui Shi
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Yanhou Geng
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Fosong Wang
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| |
Collapse
|
34
|
Casey A, Ashraf RS, Fei Z, Heeney M. Thioalkyl-Substituted Benzothiadiazole Acceptors: Copolymerization with Carbazole Affords Polymers with Large Stokes Shifts and High Solar Cell Voltages. Macromolecules 2014. [DOI: 10.1021/ma5000943] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Abby Casey
- Department
of Chemistry and
Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K
| | - Raja Shahid Ashraf
- Department
of Chemistry and
Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K
| | - Zhuping Fei
- Department
of Chemistry and
Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K
| | - Martin Heeney
- Department
of Chemistry and
Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K
| |
Collapse
|
35
|
Lee W, Kim GH, Ko SJ, Yum S, Hwang S, Cho S, Shin YH, Kim JY, Woo HY. Semicrystalline D–A Copolymers with Different Chain Curvature for Applications in Polymer Optoelectronic Devices. Macromolecules 2014. [DOI: 10.1021/ma402588m] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Wonho Lee
- Department
of Nanofusion Engineering, Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang 627-706, Republic of Korea
| | - Gi-Hwan Kim
- Interdisciplinary
School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), BanYeon-Ri
194, Ulsan 689-798, Republic of Korea
| | - Seo-Jin Ko
- Interdisciplinary
School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), BanYeon-Ri
194, Ulsan 689-798, Republic of Korea
| | - Seungjib Yum
- Department
of Nanofusion Engineering, Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang 627-706, Republic of Korea
| | - Sungu Hwang
- Department
of Nanofusion Engineering, Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang 627-706, Republic of Korea
| | - Shinuk Cho
- Department
of Physics and EHSRC, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Young-Han Shin
- Department
of Physics and EHSRC, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Jin Young Kim
- Interdisciplinary
School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), BanYeon-Ri
194, Ulsan 689-798, Republic of Korea
| | - Han Young Woo
- Department
of Nanofusion Engineering, Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang 627-706, Republic of Korea
| |
Collapse
|
36
|
Chen Z, Cai P, Zhang L, Zhu Y, Xu X, Sun J, Huang J, Liu X, Chen J, Chen H, Cao Y. Donor-acceptor copolymers based on phenanthrene as electron-donating unit: Synthesis and photovoltaic performances. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26948] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhenhui Chen
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Ping Cai
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Lianjie Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Yongxiang Zhu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Xiaofeng Xu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Jiangman Sun
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Jun Huang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Xuncheng Liu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Junwu Chen
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
- State Key Laboratory of Silicon Materials, Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Hongzheng Chen
- State Key Laboratory of Silicon Materials, Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 People's Republic of China
| |
Collapse
|
37
|
Mondal S, Chakraborty S, Bhowmick S, Das N. Synthesis of Triptycene-Based Organosoluble, Thermally Stable, and Fluorescent Polymers: Efficient Host–Guest Complexation with Fullerene. Macromolecules 2013. [DOI: 10.1021/ma401421k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Snehasish Mondal
- Department
of Chemistry, Indian Institute of Technology Patna, Patna 800 013, Bihar, India
| | - Sourav Chakraborty
- Department
of Chemistry, Indian Institute of Technology Patna, Patna 800 013, Bihar, India
| | - Sourav Bhowmick
- Department
of Chemistry, Indian Institute of Technology Patna, Patna 800 013, Bihar, India
| | - Neeladri Das
- Department
of Chemistry, Indian Institute of Technology Patna, Patna 800 013, Bihar, India
| |
Collapse
|
38
|
Pan C, Sugiyasu K, Wakayama Y, Sato A, Takeuchi M. Thermoplastic Fluorescent Conjugated Polymers: Benefits of Preventing π-π Stacking. Angew Chem Int Ed Engl 2013; 52:10775-9. [DOI: 10.1002/anie.201305728] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Indexed: 11/10/2022]
|
39
|
Pan C, Sugiyasu K, Wakayama Y, Sato A, Takeuchi M. Thermoplastic Fluorescent Conjugated Polymers: Benefits of Preventing π-π Stacking. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305728] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
40
|
Marks P, Cohen S, Levine M. Highly efficient quenching of nanoparticles for the detection of electron-deficient nitroaromatics. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26824] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Patrick Marks
- Department of Chemistry; University of Rhode Island; 51 Lower College Road Kingston Rhode Island 02881
| | - Sage Cohen
- South Kingstown High School; South Kingstown Rhode Island
| | - Mindy Levine
- Department of Chemistry; University of Rhode Island; 51 Lower College Road Kingston Rhode Island 02881
| |
Collapse
|
41
|
Wang X, Jiang P, Chen Y, Luo H, Zhang Z, Wang H, Li X, Yu G, Li Y. Thieno[3,2-b]thiophene-Bridged D−π–A Polymer Semiconductor Based on Benzo[1,2-b:4,5-b′]dithiophene and Benzoxadiazole. Macromolecules 2013. [DOI: 10.1021/ma4005555] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaochen Wang
- State Key
Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers
of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- CAS Key Laboratory of Organic
Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Pei Jiang
- State Key
Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers
of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
- CAS Key Laboratory of Organic
Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yu Chen
- State Key
Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers
of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hao Luo
- CAS Key Laboratory of Organic
Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhiguo Zhang
- CAS Key Laboratory of Organic
Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Haiqiao Wang
- State Key
Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers
of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoyu Li
- State Key
Laboratory of Organic−Inorganic
Composites, Key Laboratory of Carbon Fiber and Functional Polymers
of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Gui Yu
- CAS Key Laboratory of Organic
Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yongfang Li
- CAS Key Laboratory of Organic
Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
42
|
Ma Y, Zheng Q, Yin Z, Cai D, Chen SC, Tang C. Ladder-Type Dithienonaphthalene-Based Donor–Acceptor Copolymers for Organic Solar Cells. Macromolecules 2013. [DOI: 10.1021/ma400696e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yunlong Ma
- State Key
Laboratory of Structural Chemistry, Fujian Institute of Research on
the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Qingdong Zheng
- State Key
Laboratory of Structural Chemistry, Fujian Institute of Research on
the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Zhigang Yin
- State Key
Laboratory of Structural Chemistry, Fujian Institute of Research on
the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Dongdong Cai
- State Key
Laboratory of Structural Chemistry, Fujian Institute of Research on
the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Shan-Ci Chen
- State Key
Laboratory of Structural Chemistry, Fujian Institute of Research on
the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Changquan Tang
- State Key
Laboratory of Structural Chemistry, Fujian Institute of Research on
the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| |
Collapse
|
43
|
|
44
|
Shi S, Xie X, Jiang P, Chen S, Wang L, Wang M, Wang H, Li X, Yu G, Li Y. Naphtho[1,2-b:5,6-b′]dithiophene-Based Donor–Acceptor Copolymer Semiconductors for High-Mobility Field-Effect Transistors and Efficient Polymer Solar Cells. Macromolecules 2013. [DOI: 10.1021/ma400177w] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shaowei Shi
- State Key Laboratory of Organic−Inorganic Composite, Beijing University of Chemical Technology, Beijing
100029, China
- Key Laboratory
of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing
100029, China
| | - Xiaodong Xie
- CAS Key Laboratory
of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Pei Jiang
- State Key Laboratory of Organic−Inorganic Composite, Beijing University of Chemical Technology, Beijing
100029, China
- CAS Key Laboratory
of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Song Chen
- China Textile Academy, Beijing, 100025, China
| | - Liwei Wang
- State Key Laboratory of Organic−Inorganic Composite, Beijing University of Chemical Technology, Beijing
100029, China
| | - Meng Wang
- State Key Laboratory of Organic−Inorganic Composite, Beijing University of Chemical Technology, Beijing
100029, China
| | - Haiqiao Wang
- State Key Laboratory of Organic−Inorganic Composite, Beijing University of Chemical Technology, Beijing
100029, China
- Key Laboratory
of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing
100029, China
| | - Xiaoyu Li
- Key Laboratory
of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing
100029, China
| | - Gui Yu
- CAS Key Laboratory
of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yongfang Li
- CAS Key Laboratory
of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| |
Collapse
|
45
|
Azoulay JD, Koretz ZA, Wong BM, Bazan GC. Bridgehead Imine Substituted Cyclopentadithiophene Derivatives: An Effective Strategy for Band Gap Control in Donor–Acceptor Polymers. Macromolecules 2013. [DOI: 10.1021/ma302569u] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jason D. Azoulay
- Departments of Chemistry & Biochemistry and Materials, Center for Polymers and Organic Solids, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Materials Chemistry Department, Sandia National Laboratories, Livermore, California
94551, United States
| | - Zachary A. Koretz
- Departments of Chemistry & Biochemistry and Materials, Center for Polymers and Organic Solids, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Bryan M. Wong
- Materials Chemistry Department, Sandia National Laboratories, Livermore, California
94551, United States
| | - Guillermo C. Bazan
- Departments of Chemistry & Biochemistry and Materials, Center for Polymers and Organic Solids, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| |
Collapse
|
46
|
Lim SZH, Neo WT, Cho CM, Wang X, Tan AYX, Chan HSO, Xu J. Electrochromic π-Conjugated Copolymers Derived from Azulene, Fluorene, and Dialkyloxybenzothiadiazole. Aust J Chem 2013. [DOI: 10.1071/ch13147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A series of random π-conjugated copolymers P1, P2, and P3 were synthesised from 1,3-dibromoazulene, 4,7-dibromo-5,6-bis(dodecyloxy)benzo-2,1,3-thiadiazole, and 9,9-dioctylfluorene-2,7-bis(trimethyleneborate) via Suzuki coupling reactions. The copolymers P1–3 had molecular weights in the range of 17000–30900 g mol–1 with polydispersity indexes of 1.45–2.03. Thermal analysis showed that the polymers P1–3 had good thermal stability with decomposition temperatures ranging from 341 – 363°C both in air and in nitrogen. Photoluminescence studies showed that polymer P1 and P2 are weakly fluorescent with low quantum yields of 0.013 and 0.0029 for P1 borne with 30 % azulene and P2 borne with 50 % azulene in the polymer backbone, respectively. P3 borne with 70 % azulene resulted in complete quenching of fluorescence. The electrochemical band gaps for P1–3 are very close to their corresponding optical band gaps. Electrochromic study showed that three polymer thin films displayed the same colour change from yellowish green at the neutral and electrochemically-reduced state to greyish brown at the electrochemically-oxidised state. In particular, electrochromic contrasts of 17 % and 13 % for P2 and P3, respectively, were recorded in the near infrared region.
Collapse
|
47
|
Intemann JJ, Mike JF, Cai M, Barnes CA, Xiao T, Roggers RA, Shinar J, Shinar R, Jeffries‐EL M. Synthesis, characterization, and electroluminescence properties of poly(fluorenevinylene benzobisthiazoles). ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26449] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Jared F. Mike
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - Min Cai
- Ames Laboratory‐USDOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011
| | | | - Teng Xiao
- Ames Laboratory‐USDOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011
| | | | - Joseph Shinar
- Ames Laboratory‐USDOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011
| | - Ruth Shinar
- Microelectronics Research Center and Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011
| | | |
Collapse
|
48
|
Du C, Li W, Li C, Bo Z. Ethynylene-containing donor-acceptor alternating conjugated polymers: Synthesis and photovoltaic properties. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26396] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
49
|
Damaceanu MD, Bruma M, Schulz B. Fluorescence behavior of semicrystalline functionalized maleic acid copolymers containing 1,3,4-oxadiazole side chains. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.09.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
50
|
Li Y, Liu J, Liu B, Tomczak N. Highly emissive PEG-encapsulated conjugated polymer nanoparticles. NANOSCALE 2012; 4:5694-5702. [PMID: 22878417 DOI: 10.1039/c2nr31267k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A novel bioimaging probe based on a conjugated polymer, poly(9,9-dihexylfluorene-alt-2,1,3-benzoxadiazole) (PFBD), is demonstrated. Transfer of the hydrophobic polymer into water using a short chain poly(ethylene glycol) (PEG) resulted in conjugated polymer nanoparticles (PEG-PFBD) with a fluorescence quantum yield of 46%. The PEG-PFBD nanoparticles possessed several desirable structural and photophysical properties, such as colloidal stability in a broad range of pH values, sub-20 nm particle size, the presence of surface chemical functionality, as well as desirable excitation and emission spectra, for bioimaging applications. PEG-PFBD nanoparticles were conjugated with cyclic RGDfK targeting peptide for labeling of membrane α(V)β(3) integrin receptors on live HT-29 adenocarcinoma cells. Single nanoparticle microscopy revealed that the PEG-capped PFBD nanoparticles exhibit at least ten times higher emitted photon counts than single quantum dots (QD655) of comparable size. In addition, Fluorescence Lifetime Imaging Microscopy (FLIM) of single PEG-PFBD nanoparticles revealed that the nanoparticles display a clearly resolvable single nanoparticle fluorescence lifetime.
Collapse
Affiliation(s)
- Yuqiong Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 3 Research Link, Singapore 117602
| | | | | | | |
Collapse
|