201
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Mudliar NH, Singh PK. Emissive H-Aggregates of an Ultrafast Molecular Rotor: A Promising Platform for Sensing Heparin. ACS APPLIED MATERIALS & INTERFACES 2016; 8:31505-31509. [PMID: 27933968 DOI: 10.1021/acsami.6b12729] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Constructing "turn on" fluorescent probes for heparin, a most widely used anticoagulant in clinics, from commercially available materials is of great importance, but remains challenging. Here, we report the formation of a rarely observed emissive H-aggregate of an ultrafast molecular rotor dye, Thioflavin-T, in the presence of heparin, which provides an excellent platform for simple, economic and rapid fluorescence turn-on sensing of heparin. Generally, H-aggregates are considered as serious problem in the field of biomolecular sensing, owing to their poorly emissive nature resulting from excitonic interaction. To the best of our knowledge, this is the first report, where contrastingly, the turn-on emission from the H-aggregates has been utilized in the biomolecule sensing scheme, and enables a very efficient and selective detection of a vital biomolecule and a drug with its extensive medical applications, i.e., heparin. Our sensor system offers several advantages including, emission in the biologically advantageous red-region, dual sensing, i.e., both by fluorimetry and colorimetry, and most importantly constructed from in-expensive commercially available dye molecule, which is expected to impart a large impact on the sensing field of heparin. Our system displays good performance in complex biological media of serum samples. The novel Thioflavin-T aggregate emission could be also used to probe the interaction of heparin with its only clinically approved antidote, Protamine.
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Affiliation(s)
- Niyati H Mudliar
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre , Mumbai 400 085, India
| | - Prabhat K Singh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre , Mumbai 400 085, India
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202
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Saha ML, Yan X, Stang PJ. Photophysical Properties of Organoplatinum(II) Compounds and Derived Self-Assembled Metallacycles and Metallacages: Fluorescence and its Applications. Acc Chem Res 2016; 49:2527-2539. [PMID: 27736060 DOI: 10.1021/acs.accounts.6b00416] [Citation(s) in RCA: 276] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Over the past couple of decades, coordination-driven self-assembly has evolved as a broad multidisciplinary domain that not only covers the syntheses of aesthetically pleasing supramolecular architectures but also emerges as a method to form new optical materials, chemical sensors, theranostic agents, and compounds with light-harvesting and emissive properties. The majority of these applications depend upon investigations that reveal the photophysical nature and electronic structure of supramolecular coordination complexes (SCCs), including two-dimensional (2D) metallacycles and three-dimensional (3D) metallacages. As such, well-defined absorption and emission spectra are important for a given SCC to be used for sensing, bioimaging, and other applications with molecular fluorescence being an important component. In this Account, we summarize the photophysical properties of some bis(phosphine)organoplatinum(II) compounds and their discrete SCCs. The platinum(II) based organometallic precursors typically display spectral red-shifts and have low fluorescence quantum yields and short fluorescence lifetimes compared to their organic counterparts because the introduction of metal centers enhances both intersystem crossing (ISC) and intramolecular charge transfer (ICT) processes, which can compete with the fluorescence emissions. Likewise ligands with conjugation can also increase the ICT process; hence the corresponding organoplatinum(II) compounds undergo a further decrease in fluorescence lifetimes. The use of endohedral amine functionalized 120°-bispyridyl ligands can dramatically enhance the emission properties of the resultant organoplatinum(II) based SCCs. As such these SCCs display emissions in the visible region (ca. 400-500 nm) and are significantly red-shifted (ca. 80-100 nm) compared to the ligands. This key feature makes them suitable as supramolecular theranostic agents wherein these unique emission properties provide diagnostic spectroscopic handles and the organoplatinum(II) centers act as potential anticancer agents. Using steady state and time-resolved-spectroscopic techniques and quantum computations in concert, we have determined that the emissive properties stem from the ligand-centered transitions involving π-type molecular orbitals with modest contributions from the metal-based orbitals. The self-assembly and the photophysics of organoplatinum(II) ← 3-substituted pyridyl based SCCs are highly diverse. Subtle changes in the ligands' structures can form molecular congener systems with distinct conformational and photophysical properties. Furthermore, the heterometallic SCCs described herein possess rich photophysical properties and can be used for sensing based applications. Tetraphenylethylene (TPE) based SCCs display emissions in the aggregated state as well as in dilute solutions. This is a unique phenomenon that bridges the aggregation caused quenching (ACQ) and aggregation induced emission (AIE) effects. Moreover, a TPE based metallacage exhibits solvatoluminescence, including white light emission in THF solvent, and can act as a fluorescence-sensor for structurally similar ester compounds.
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Affiliation(s)
- Manik Lal Saha
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Xuzhou Yan
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
- Department
of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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203
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Wang L, Chen LJ, Ma JQ, Wang CH, Tan H, Huang J, Xiao F, Xu L. Construction of multiferrocenes end-capped metallodendrimers via coordination-driven self-assembly and their electrochemical behavior. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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204
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Liu FW, Niu LY, Chen Y, Ramamurthy V, Wu LZ, Tung CH, Chen YZ, Yang QZ. A Phosphorescent Platinum(II) Bipyridyl Supramolecular Polymer Based on Quadruple Hydrogen Bonds. Chemistry 2016; 22:18132-18139. [DOI: 10.1002/chem.201603467] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Fang-Wei Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; 29 Zhongguancun East Road Beijing 100190 P.R. China
| | - Li-Ya Niu
- Key Laboratory of Radiopharmaceuticals; Ministry of Education; College of Chemistry; Beijing Normal University; Beijing 100875 P.R. China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; 29 Zhongguancun East Road Beijing 100190 P.R. China
| | | | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; 29 Zhongguancun East Road Beijing 100190 P.R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; 29 Zhongguancun East Road Beijing 100190 P.R. China
| | - Yu-Zhe Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; 29 Zhongguancun East Road Beijing 100190 P.R. China
| | - Qing-Zheng Yang
- Key Laboratory of Radiopharmaceuticals; Ministry of Education; College of Chemistry; Beijing Normal University; Beijing 100875 P.R. China
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205
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Zhou Z, Yan X, Saha ML, Zhang M, Wang M, Li X, Stang PJ. Immobilizing Tetraphenylethylene into Fused Metallacycles: Shape Effects on Fluorescence Emission. J Am Chem Soc 2016; 138:13131-13134. [PMID: 27672700 DOI: 10.1021/jacs.6b07173] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein, we describe the selective formation of a discrete fused metallarhomboid and a triangle by the careful control of the shape and stoichiometry of the building blocks. A tetraphenylethylene (TPE)-based tetrapyridyl donor is exploited as the bridging component, and coordination immobilization of the TPE unit within the rigid metallacyclic frameworks efficiently suppresses its intramolecular rotational motions. As a result, the fused polygons are innately emissive in dilute solution, representing an alternative to aggregation-induced emission. Upon further molecular aggregation, these metallacycles display aggregation-induced enhanced emissions. Interestingly, the fused rhomboid 7 shows a weaker fluorescence in dilute solutions relative to that of the fused triangle 8, while a reversal of emission intensities was observed in the aggregated state. These markedly different fluorescence efficiencies are likely due to the differences in the shapes of the fused polygons. Thus, this work shows that the properties of supramolecular coordination complexes can be affected by subtle structural factors, which can be controlled easily and precisely at the molecular level.
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Affiliation(s)
- Zhixuan Zhou
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Xuzhou Yan
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Manik Lal Saha
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Mingming Zhang
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Ming Wang
- Department of Chemistry and Biochemistry and Materials Science, Engineering, and Commercialization Program, Texas State University , San Marcos, Texas 78666, United States
| | - Xiaopeng Li
- Department of Chemistry and Biochemistry and Materials Science, Engineering, and Commercialization Program, Texas State University , San Marcos, Texas 78666, United States
| | - Peter J Stang
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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206
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Chowdhury A, Mukherjee PS. Vinylanthracene-Based Compounds as Electron-Rich Sensors for Explosives Recognition. Chempluschem 2016; 81:1360-1370. [DOI: 10.1002/cplu.201600399] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 09/09/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Aniket Chowdhury
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore Karnataka 560012 India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore Karnataka 560012 India
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207
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Fluorescent metallacycle-cored polymers via covalent linkage and their use as contrast agents for cell imaging. Proc Natl Acad Sci U S A 2016; 113:11100-11105. [PMID: 27647900 DOI: 10.1073/pnas.1612898113] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The covalent linkage of supramolecular monomers provides a powerful strategy for constructing dynamic polymeric materials whose properties can be readily tuned either by the selection of monomers or the choice of functional linkers. In this strategy, the stabilities of the supramolecular monomers and the reactions used to link the monomers are crucial because such monomers are normally dynamic and can disassemble during the linking process, leading to mixture of products. Therefore, although noncovalent interactions have been widely introduced into metallacycle structures to prepare metallosupramolecular polymers, metallacycle-cored polymers linked by covalent bonds have been rarely reported. Herein, we used the mild, highly efficient amidation reaction between alkylamine and N-hydroxysuccinimide-activated carboxylic acid to link the pendent amino functional groups of a rhomboidal metallacycle 10 to give metallacycle-cored polymers P1 and P2, which further yielded nanoparticles at low concentration and transformed into network structures as the concentration increased. Moreover, these polymers exhibited enhanced emission and showed better quantum yields than metallacycle 10 in methanol and methanol/water (1/9, vol/vol) due to the aggregation-induced emission properties of a tetraphenylethene-based pyridyl donor, which serves as a precursor for metallacycle 10. The fluorescence properties of these polymers were further used in cell imaging, and they showed a significant enrichment in lung cells after i.v. injection. Considering the anticancer activity of rhomboidal Pt(II) metallacycles, this type of fluorescent metallacycle-cored polymers can have potential applications toward lung cancer treatment.
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208
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Affiliation(s)
- Ching W. Chan
- Department of Chemistry, University of York, York, UK
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209
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Tian Y, Yan X, Saha ML, Niu Z, Stang PJ. Hierarchical Self-Assembly of Responsive Organoplatinum(II) Metallacycle–TMV Complexes with Turn-On Fluorescence. J Am Chem Soc 2016; 138:12033-6. [DOI: 10.1021/jacs.6b07402] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ye Tian
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xuzhou Yan
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Manik Lal Saha
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Zhongwei Niu
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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210
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Jiang B, Zhang J, Zheng W, Chen LJ, Yin GQ, Wang YX, Sun B, Li X, Yang HB. Construction of Alkynylplatinum(II) Bzimpy-Functionalized Metallacycles and Their Hierarchical Self-Assembly Behavior in Solution Promoted by Pt⋅⋅⋅Pt and π-π Interactions. Chemistry 2016; 22:14664-71. [DOI: 10.1002/chem.201601682] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Bo Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
| | - Jing Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
| | - Wei Zheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
| | - Li-Jun Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
| | - Guang-Qiang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
| | - Yu-Xuan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
| | - Bin Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
| | - Xiaopeng Li
- Department of Chemistry and Biochemistry; Texas State University; San Marcos TX 78666 USA
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 P.R. China
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211
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Modulating luminescence of Tb(3+) with biomolecules for sensing heparin and its contaminant OSCS. Biosens Bioelectron 2016; 86:858-863. [PMID: 27494809 DOI: 10.1016/j.bios.2016.07.085] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/23/2016] [Accepted: 07/25/2016] [Indexed: 01/09/2023]
Abstract
The detection of heparin (Hep) and its contaminant oversulfated chondroitin sulfate (OSCS) is of great importance in clinics but remains challenging. Here, we report a sensitive and selective time-resolved luminescence (TRL) biosensing system for Hep by modulating the photoluminescence of Tb(3+) with guanine-rich ssDNA and Hep-specific AG73 peptide (RKRLQVQLSIRT). With the developed system, Hep including both unfractionated Hep (UFH) and the low molecular weight Hep (LMWH) has been successfully detected with a satisfactory detection limit. Owing to the highly specific interaction between Hep and AG73 peptide, major interfering substances in Hep detection, such as Hep analogs of chondrotin sulfate (Chs) and hyaluronic acid (HA), did not interfere with Hep detection. The established TRL sensing system was then successfully used for monitoring Hep metabolism in living rats by microdialysis. Moreover, the proposed TRL sensing system was further applied to analyze OSCS contaminant in Hep with heparinases treatment by exploring the inhibition effects of OSCS on the activity of heparinases. As low as 0.002% of OSCS in Hep was identified.
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212
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Shafikov MZ, Kozhevnikov DN, Bodensteiner M, Brandl F, Czerwieniec R. Modulation of Intersystem Crossing Rate by Minor Ligand Modifications in Cyclometalated Platinum(II) Complexes. Inorg Chem 2016; 55:7457-66. [PMID: 27388146 DOI: 10.1021/acs.inorgchem.6b00704] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Photophysical properties of four new platinum(II) complexes comprising extended ppy (Hppy = 2-phenylpyridine) and thpy (Hthpy = 2-(2'-thienyl)pyridine) cyclometalated ligands and acetylacetonate (acac) are reported. Substitution of the benzene ring of Pt-ppy complexes 1 and 2 with a more electron-rich thiophene of Pt-thpy complexes 3 and 4 leads to narrowing of the HOMO-LUMO gap and thus to a red shift of the lowest energy absorption band and phosphorescence band, as expected for low-energy excited states of the intraligand/metal-to-ligand charge transfer character. However, in addition to these conventional spectral shifts, another, at first unexpected, substitution effect occurs. Pt-thpy complexes 3 and 4 are dual emissive showing fluorescence about 6000 cm(-1) (∼0.75 eV) higher in energy relative to the phosphorescence band, while for Pt-ppy complexes 1 and 2 only phosphorescence is observed. For dual-emissive complexes 3 and 4, ISC rates kISC are estimated to be in order of 10(9)-10(10) s(-1), while kISC of Pt-ppy complexes 1 and 2 is much faster amounting to 10(12) s(-1) or more. The relative intensities of the fluorescence and phosphorescence signals of Pt-thpy complexes 3 and 4 depend on the excitation wavelength, showing that hyper-intersystem crossing (HISC) in these complexes is observably significant.
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Affiliation(s)
- Marsel Z Shafikov
- Ural Federal University , Mira 19, Ekaterinburg, 620002, Russia.,I. Postovsky Institute of Organic Synthesis , Ekaterinburg, 620041, Russia
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213
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An J, Guo Q, Zhang P, Sinclair A, Zhao Y, Zhang X, Wu K, Sun F, Hung HC, Li C, Jiang S. Hierarchical design of a polymeric nanovehicle for efficient tumor regression and imaging. NANOSCALE 2016; 8:9318-9327. [PMID: 27088429 DOI: 10.1039/c6nr01595f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Effective delivery of therapeutics to disease sites significantly contributes to drug efficacy, toxicity and clearance. Here we designed a hierarchical polymeric nanoparticle structure for anti-cancer chemotherapy delivery by utilizing state-of-the-art polymer chemistry and co-assembly techniques. This novel structural design combines the most desired merits for drug delivery in a single particle, including a long in vivo circulation time, inhibited non-specific cell uptake, enhanced tumor cell internalization, pH-controlled drug release and simultaneous imaging. This co-assembled nanoparticle showed exceptional stability in complex biological media. Benefiting from the synergistic effects of zwitterionic and multivalent galactose polymers, drug-loaded nanoparticles were selectively internalized by cancer cells rather than normal tissue cells. In addition, the pH-responsive core retained their cargo within their polymeric coating through hydrophobic interaction and released it under slightly acidic conditions. In vivo pharmacokinetic studies in mice showed minimal uptake of nanoparticles by the mononuclear phagocyte system and excellent blood circulation half-lives of 14.4 h. As a result, tumor growth was completely inhibited and no damage was observed for normal organ tissues. This newly developed drug nanovehicle has great potential in cancer therapy, and the hierarchical design principle should provide valuable information for the development of the next generation of drug delivery systems.
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Affiliation(s)
- Jinxia An
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
| | - Qianqian Guo
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
| | - Peng Zhang
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Andrew Sinclair
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Yu Zhao
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
| | - Xinge Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
| | - Kan Wu
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Fang Sun
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Hsiang-Chieh Hung
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Chaoxing Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
| | - Shaoyi Jiang
- Department of Chemical Engineering, University of Washington, Seattle, WA 98195, USA.
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214
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Chowdhury A, Howlader P, Mukherjee PS. Aggregation‐Induced Emission of Platinum(II) Metallacycles and Their Ability to Detect Nitroaromatics. Chemistry 2016; 22:7468-78. [DOI: 10.1002/chem.201600698] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Aniket Chowdhury
- Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
| | - Prodip Howlader
- Inorganic and Physical Chemistry Indian Institute of Science Bangalore 560012 India
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215
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Xu L, Yang HB. Our Expedition in Linear Neutral Platinum-Acetylide Complexes: The Preparation of Micro/nanostructure Materials, Complicated Topologies, and Dye-Sensitized Solar Cells. CHEM REC 2016; 16:1274-97. [PMID: 27097565 DOI: 10.1002/tcr.201500271] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Indexed: 01/12/2023]
Abstract
During the past few decades, the construction of various kinds of platinum-acetylide complexes has attracted considerable attention, because of their wide applications in photovoltaic cells, non-linear optics, and bio-imaging materials. Among these platinum-acetylide complexes, the linear neutral platinum-acetylide complexes, due to their attractive properties, such as well-defined linear geometry, synthetic accessibility, and intriguing photoproperties, have emerged as a rising star in this field. In this personal account, we will discuss how we entered the field of linear neutral platinum-acetylide chemistry and what we found in this field. The preparation of various types of linear neutral platinum-acetylide complexes and their applications in the areas of micro/nanostructure materials, complicated topologies, and dye-sensitized solar cells will be summarized in this account.
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Affiliation(s)
- Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. China
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216
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Izzet G, Abécassis B, Brouri D, Piot M, Matt B, Serapian SA, Bo C, Proust A. Hierarchical Self-Assembly of Polyoxometalate-Based Hybrids Driven by Metal Coordination and Electrostatic Interactions: From Discrete Supramolecular Species to Dense Monodisperse Nanoparticles. J Am Chem Soc 2016; 138:5093-9. [PMID: 27019075 DOI: 10.1021/jacs.6b00972] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The metal-driven self-assembly processes of a covalent polyoxometalate (POM)-based hybrid bearing remote terpyridine binding sites have been investigated. In a strongly dissociating solvent, a discrete metallomacrocycle, described as a molecular triangle, is formed and characterized by 2D diffusion NMR spectroscopy (DOSY), small-angle X-ray scattering (SAXS), and molecular modeling. In a less dissociating solvent, the primary supramolecular structure, combining negatively charged POMs and cationic metal linkers, further self-assemble through intermolecular electrostatic interactions in a reversible process. The resulting hierarchical assemblies are dense monodisperse nanoparticles composed of ca. 50 POMs that were characterized by SAXS and transmission electron microscopy (TEM). This multiscale organized system directed by metal coordination and electrostatic interactions constitutes a promising step for the future design of POM self-assemblies with controllable structure-directing factors.
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Affiliation(s)
- Guillaume Izzet
- Sorbonne Universités, UPMC Université Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie , 4 Place Jussieu, F-75005 Paris, France
| | - Benjamin Abécassis
- Laboratoire de Physique des Solides, Université Paris-Sud , CNRS UMR 8502, 91405 Cedex Orsay, France
| | - Dalil Brouri
- Sorbonne Universités, UPMC Université Paris 06, CNRS UMR 7197, Laboratoire de Réactivité de Surface, Université Pierre et Marie Curie , 4 Place Jussieu, F-75005 Paris, France
| | - Madeleine Piot
- Sorbonne Universités, UPMC Université Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie , 4 Place Jussieu, F-75005 Paris, France
| | - Benjamin Matt
- Sorbonne Universités, UPMC Université Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie , 4 Place Jussieu, F-75005 Paris, France
| | - Stefano Artin Serapian
- Catalan Institute of Chemical Research (ICIQ), The Barcelona Institute of Science and Technology , Avinguda dels Països Catalans 16, 43007 Tarragona, Spain
| | - Carles Bo
- Catalan Institute of Chemical Research (ICIQ), The Barcelona Institute of Science and Technology , Avinguda dels Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Física i Inorgànica, Universitat Rovira i Virgili , Avinguda dels Països Catalans, 26, 43007 Tarragona, Spain
| | - Anna Proust
- Sorbonne Universités, UPMC Université Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie , 4 Place Jussieu, F-75005 Paris, France
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217
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Jiang B, Chen LJ, Zhang Y, Tan HW, Xu L, Yang HB. Hierarchical self-assembly of triangular metallodendrimers into the ordered nanostructures. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.03.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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218
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Zheng W, Chen LJ, Yang G, Sun B, Wang X, Jiang B, Yin GQ, Zhang L, Li X, Liu M, Chen G, Yang HB. Construction of Smart Supramolecular Polymeric Hydrogels Cross-linked by Discrete Organoplatinum(II) Metallacycles via Post-Assembly Polymerization. J Am Chem Soc 2016; 138:4927-37. [DOI: 10.1021/jacs.6b01089] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wei Zheng
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Li-Jun Chen
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Guang Yang
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, People’s Republic of China
| | - Bin Sun
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
- Department of Chemistry and Biochemistry & Materials Science, Engineering, and Commercialization Program, Texas State University, San Macros, Texas 78666, United States
| | - Xu Wang
- Department of Chemistry and Biochemistry & Materials Science, Engineering, and Commercialization Program, Texas State University, San Macros, Texas 78666, United States
| | - Bo Jiang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Guang-Qiang Yin
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Li Zhang
- Key
Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute
of Chemistry, The Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
| | - Xiaopeng Li
- Department of Chemistry and Biochemistry & Materials Science, Engineering, and Commercialization Program, Texas State University, San Macros, Texas 78666, United States
| | - Minghua Liu
- Key
Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute
of Chemistry, The Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
| | - Guosong Chen
- The
State Key Laboratory of Molecular Engineering of Polymers and Department
of Macromolecular Science, Fudan University, Shanghai 200433, People’s Republic of China
| | - Hai-Bo Yang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
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219
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Yan X, Wang M, Cook TR, Zhang M, Saha ML, Zhou Z, Li X, Huang F, Stang PJ. Light-Emitting Superstructures with Anion Effect: Coordination-Driven Self-Assembly of Pure Tetraphenylethylene Metallacycles and Metallacages. J Am Chem Soc 2016; 138:4580-8. [DOI: 10.1021/jacs.6b00846] [Citation(s) in RCA: 185] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xuzhou Yan
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Ming Wang
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, Texas 78666, United States
| | - Timothy R. Cook
- Department
of Chemistry, University at Buffalo, 359 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Mingming Zhang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Manik Lal Saha
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Zhixuan Zhou
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
| | - Xiaopeng Li
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, Texas 78666, United States
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake
City, Utah 84112, United States
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220
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Xu XD, Yao CJ, Chen LJ, Yin GQ, Zhong YW, Yang HB. Facile Construction of Structurally Defined Porous Membranes from Supramolecular Hexakistriphenylamine Metallacycles through Electropolymerization. Chemistry 2016; 22:5211-8. [DOI: 10.1002/chem.201504480] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Xing-Dong Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; Department of Chemistry; East China Normal University; Shanghai 200062 P.R. China
| | - Chang-Jiang Yao
- Beijing National Laboratory for Molecular Science; CAS Key Laboratory of Photochemistry; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
| | - Li-Jun Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; Department of Chemistry; East China Normal University; Shanghai 200062 P.R. China
| | - Guang-Qiang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; Department of Chemistry; East China Normal University; Shanghai 200062 P.R. China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Science; CAS Key Laboratory of Photochemistry; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes; Department of Chemistry; East China Normal University; Shanghai 200062 P.R. China
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221
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Samanta D, Chowdhury A, Mukherjee PS. Covalent Postassembly Modification and Water Adsorption of Pd3 Self-Assembled Trinuclear Barrels. Inorg Chem 2016; 55:1562-8. [DOI: 10.1021/acs.inorgchem.5b02464] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Dipak Samanta
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Aniket Chowdhury
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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222
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Wang Q, Li Z, Tao DD, Zhang Q, Zhang P, Guo DP, Jiang YB. Supramolecular aggregates as sensory ensembles. Chem Commun (Camb) 2016; 52:12929-12939. [DOI: 10.1039/c6cc06075g] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent research progress in sensing based on induced supramolecular aggregation or disaggregation.
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Affiliation(s)
- Qian Wang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- and the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Xiamen University
| | - Zhao Li
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- and the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Xiamen University
| | - Dan-Dan Tao
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- and the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Xiamen University
| | - Qian Zhang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- and the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Xiamen University
| | - Peng Zhang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- and the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Xiamen University
| | - Dai-Ping Guo
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- and the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Xiamen University
| | - Yun-Bao Jiang
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- and the Collaborative Innovation Center of Chemistry for Energy Materials (iChEM)
- Xiamen University
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223
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Wang W, Wang YX, Yang HB. Supramolecular transformations within discrete coordination-driven supramolecular architectures. Chem Soc Rev 2016; 45:2656-93. [DOI: 10.1039/c5cs00301f] [Citation(s) in RCA: 432] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this review, a comprehensive summary of supramolecular transformations within discrete coordination-driven supramolecular architectures, including helices, metallacycles, metallacages, etc., is presented.
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Affiliation(s)
- Wei Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Yu-Xuan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
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224
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Chen LJ, Jiang B, Yang HB. Transformable nanostructures of cholesteryl-containing rhomboidal metallacycles through hierarchical self-assembly. Org Chem Front 2016. [DOI: 10.1039/c6qo00017g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various interesting nanostructures such as flowers and tadpole shaped structures were successfully obtained from well-defined cholesteryl-containing rhomboidal metallacycles prepared by coordination-driven self-assembly.
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Affiliation(s)
- Li-Jun Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Bo Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- P. R. China
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225
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Liu YC, Wang YY, Tian HW, Liu Y, Guo DS. Fluorescent nanoassemblies between tetraphenylethenes and sulfonatocalixarenes: a systematic study of calixarene-induced aggregation. Org Chem Front 2016. [DOI: 10.1039/c5qo00326a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We demonstrated a systematic study of calixarene-induced aggregation (CIA) that how and to what extent the structures of hosts and guests affect the assembly behavior by fluorescence spectroscopy.
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Affiliation(s)
- Yan-Cen Liu
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Yu-Ying Wang
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Han-Wen Tian
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Yu Liu
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Dong-Sheng Guo
- Department of Chemistry
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
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226
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He L, Li L, Liu X, Wang J, Huang H, Bu W. Acid–base-controlled and dibenzylammonium-assisted aggregation induced emission enhancement of poly(tetraphenylethene) with an impressive blue shift. Polym Chem 2016. [DOI: 10.1039/c6py00275g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The non-covalent interaction between dibenzylammonium chloride and DB24C8 groups in poly(tetraphenylethene)-based conjugated polymers not only leads to an AIEE feature but also a significant blue shift from 515 to 483 nm.
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Affiliation(s)
- Lipeng He
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou City
| | - Lijie Li
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou City
| | - Xiaoning Liu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou City
| | - Jun Wang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou City
| | - Huanting Huang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou City
| | - Weifeng Bu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou City
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227
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Chan CW, Smith DK. Pyrene-based heparin sensors in competitive aqueous media – the role of self-assembled multivalency (SAMul). Chem Commun (Camb) 2016; 52:3785-8. [DOI: 10.1039/c6cc00163g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Simple functionalised pyrene derivatives can achieve ratiometric sensing of heparin with the precise sensing mechanism depending on whether the sensor self-assembles into a multivalent ligand display.
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228
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Yan X, Wang H, Hauke CE, Cook TR, Wang M, Saha ML, Zhou Z, Zhang M, Li X, Huang F, Stang PJ. A Suite of Tetraphenylethylene-Based Discrete Organoplatinum(II) Metallacycles: Controllable Structure and Stoichiometry, Aggregation-Induced Emission, and Nitroaromatics Sensing. J Am Chem Soc 2015; 137:15276-86. [PMID: 26550682 DOI: 10.1021/jacs.5b10130] [Citation(s) in RCA: 201] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Materials that organize multiple functionally active sites, especially those with aggregation-induced emission (AIE) properties, are of growing interest due to their widespread applications. Despite promising early architectures, the fabrication and preparation of multiple AIEgens, such as multiple tetraphenylethylene (multi-TPE) units, in a single entity remain a big challenge due to the tedious covalent synthetic procedures often accompanying such preparations. Coordination-driven self-assembly is an alternative synthetic methodology with the potential to deliver multi-TPE architectures with light-emitting characteristics. Herein, we report the preparation of a new family of discrete multi-TPE metallacycles in which two pendant phenyl rings of the TPE units remain unused as a structural element, representing novel AIE-active metal-organic materials based on supramolecular coordination complex platforms. These metallacycles possess relatively high molar absorption coefficients but weak fluorescent emission under dilute conditions because of the ability of the untethered phenyl rings to undergo torsional motion as a non-radiative decay pathway. Upon molecular aggregation, the multi-TPE metallacycles show AIE-activity with markedly enhanced quantum yields. Moreover, on account of their AIE characteristics in the condensed state and ability to interact with electron-deficient substrates, the photophysics of these metallacycles is sensitive to the presence of nitroaromatics, motivating their use as sensors. This work represents a unification of themes including molecular self-assembly, AIE, and fluorescence sensing and establishes structure-property-application relationships of multi-TPE scaffolds. The fundamental knowledge obtained from the current research facilitates progress in the field of metal-organic materials, metal-coordination-induced emission, and fluorescent sensing.
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Affiliation(s)
- Xuzhou Yan
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Haoze Wang
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States.,State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310027, P. R. China
| | - Cory E Hauke
- Department of Chemistry, University at Buffalo , 359 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Timothy R Cook
- Department of Chemistry, University at Buffalo , 359 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Ming Wang
- Department of Chemistry and Biochemistry and Materials Science, Engineering, and Commercialization Program, Texas State University , San Marcos, Texas 78666, United States
| | - Manik Lal Saha
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Zhixuan Zhou
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Mingming Zhang
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Xiaopeng Li
- Department of Chemistry and Biochemistry and Materials Science, Engineering, and Commercialization Program, Texas State University , San Marcos, Texas 78666, United States
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310027, P. R. China
| | - Peter J Stang
- Department of Chemistry, University of Utah , 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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229
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Zhang L, Lin YJ, Li ZH, Jin GX. Rational Design of Polynuclear Organometallic Assemblies from a Simple Heteromultifunctional Ligand. J Am Chem Soc 2015; 137:13670-8. [DOI: 10.1021/jacs.5b08826] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Long Zhang
- State Key Laboratory of Molecular
Engineering of Polymers, Collaborative Innovation Center of Chemistry
for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, PR China
| | - Yue-Jian Lin
- State Key Laboratory of Molecular
Engineering of Polymers, Collaborative Innovation Center of Chemistry
for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, PR China
| | - Zhen-Hua Li
- State Key Laboratory of Molecular
Engineering of Polymers, Collaborative Innovation Center of Chemistry
for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, PR China
| | - Guo-Xin Jin
- State Key Laboratory of Molecular
Engineering of Polymers, Collaborative Innovation Center of Chemistry
for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, PR China
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