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Low bandgap bonding polymeric compositions and applications thereof

A composition and copolymer technology, applied in the direction of drug combination, medical preparations with non-active ingredients, medical preparations containing active ingredients, etc.

Inactive Publication Date: 2018-02-02
WAKE FOREST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This insolubility has limited the application of bonded polymer systems to many applications requiring compatibility with aqueous solvents and / or aqueous phases

Method used

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  • Low bandgap bonding polymeric compositions and applications thereof
  • Low bandgap bonding polymeric compositions and applications thereof
  • Low bandgap bonding polymeric compositions and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0133] NIR-mediated thermal ablation of cancer cells using aqueous or colloidal compositions of water-insoluble conjugated polymers

[0134] Materials and methods

[0135] All reagents were purchased from usual commercial sources and used without further purification unless otherwise stated. 4H-Cyclopenta-[1,2-b:5,4-b']dithiophene was purchased from Astar Pharma. THF was dried over Na / benzophenone ketal. Synthesis of 4,4-bis(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-cyclopenta[2,1-b; 3,4- b']dithiophene, 4,7-dibromo-2,1,3-benzothiadiazole and 4,7-dibromo-2,1,3-benzoselenadiazole (see J.Hou, T.L. Chen, S. Zhang, H.-Y. Chen, Y. Yang, J. Phys. Chem. C 2009, 113, 1601-1607; Z. Zhu, D. Waller, R. Gaudiana, M. Morana, D. Muhlbacher, M. Scharber, C. Brabec, Macromolecules 2007, 40, 1981-1986; C.W. Bird, G.W.H. Cheeseman, A.A. Sarsfield, J. Chem. Soc. 1963, 4767-4770; I.H. Jung, H. Kim, M.- J.Park, B.Kim, J.-H.Park, E.Jeong, H.Y.Woo, S.Yoo, H.-K.Shim, J.Polym.Sci.Part A: Polym...

Embodiment 2

[0164] NIR-mediated thermal ablation of bacteria using a water-insoluble conjugated polymer

[0165] method

[0166] The hyperthermic interaction of PEDOT NT with bacterial species was assessed using two bacterial species with controlled surface thickness and molecular composition. Bacterial strains: Gram-positive Staphylococcus aureus ATCC 25923 and Gram-negative Escherichia coli ATCC 29055 were purchased from the American Type Culture Collection (ATCC). Bacteria were grown overnight (Staphylococcus aureus in tryptic soy broth and E. 8 The concentration of bacteria / ml suspension was used for exposure to nanoparticles. Purchase PEDOT NT from Sigma Aldrich. To aid in aqueous solubility of PEDOTNT, PEDOT NT was suspended in an aqueous solution containing 1% Pluronic (F127) surfactant. PEDOT NT was added to the bacterial suspension at a concentration of 0.1 mg / ml, and a 300 μL aliquot of the nanoparticle / bacteria solution was exposed to laser radiation. Bacterial suspensio...

Embodiment 3

[0169] NIR-mediated thermal ablation of cancer cells using aqueous or colloidal compositions of water-insoluble conjugated polymers

[0170] Materials and methods

[0171] All reagents were purchased from usual commercial sources and used without further purification unless otherwise stated. Furthermore, where relevant, all other materials were obtained and all measurements were carried out as described in Example 1 unless otherwise stated.

[0172] Aqueous Aqueous or Colloidal Compositions Forming PCPDTBSe Nanotubes and Spherical Nanoparticles

[0173] PCPDTBSe (5 mg) was dissolved in 2 mL of THF. This solution was injected rapidly into 8 mL of DI water containing Pluronic F127 (50 mg) under horn sonication. After 1 minute of sonication, the resulting mixture was centrifuged at 14,000 RPM for 15 minutes to separate the PCPDTBSe nanotubes from the substantially spherical nanoparticles. Figure 10 Transmission electron microscopy (TEM) images of isolated nanotubes are s...

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Abstract

In one aspect, described herein are conductively bonded polymeric compositions that exhibit compatibility with aqueous solvents and / or aqueous phases. In some embodiments, the ability to provide aqueous compatible compositions from the aforementioned water-insoluble bonded polymeric systems can facilitate the use of such systems in a variety of aqueous applications, including biological applications.

Description

[0001] Related application information [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application Serial No. 61 / 623,886, filed April 13, 2012, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to low-bandgap conjugated polymeric compositions (conjugated polymeric compositions), and in particular, to aqueous mixtures comprising low-bandgap conjugated polymeric compositions. Background technique [0004] Conductivity-bonded polymers show excellent charge transport properties, making them suitable materials for nanostructured devices. Many conjugated polymers have been processed into devices such as organic photovoltaic panels, light-emitting diodes, and field-effect transistors. Since they absorb visible and NIR light very well, generate excitons, and subsequently transfer charges to electron acceptors such as C 60 derivatives, thus the low bandgap nature of some bou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12C08L65/00A61K41/00A61K47/59H10K99/00
CPCA61N5/062A61N7/00A61K41/0052C08G61/123C08G61/126C08L65/00C08G2261/124C08G2261/1412C08G2261/3229C08G2261/323C08G2261/3243C08G2261/414C08G2261/90C08G2261/3245C08G2261/3246C08G2261/3247A61N2005/0659A61K47/59H01B1/127A61P31/04A61P35/00C08F126/06C08F28/06H10K85/151
Inventor 妮科尔·列维戴维·L·卡罗尔克里斯托弗·麦克尼尔伊丽莎白·格雷厄姆
Owner WAKE FOREST UNIV