Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Ik-Bum Kim"'
Array-Based Sensing of Normal, Cancerous, and Metastatic Cells Using Conjugated Fluorescent Polymers
Autor:
Oscar R. Miranda, Avinash Bajaj, Uhf Bunz, Ronnie L. Phillips, Vincent M. Rotello, DJ Jerry, Ik-Bum Kim
Publikováno v:
Journal of the American Chemical Society. 132:1018-1022
A family of conjugated fluorescent polymers was used to create an array for cell sensing. Fluorescent conjugated polymers with pendant charged residues provided multivalent interactions with cell membranes, allowing the detection of subtle difference
Autor:
Uwe H. F. Bunz, Ik-Bum Kim, D. Joseph Jerry, Vincent M. Rotello, Avinash Bajaj, Oscar R. Miranda, Ronnie L. Phillips
Publikováno v:
Proceedings of the National Academy of Sciences. 106:10912-10916
Rapid and effective differentiation between normal and cancer cells is an important challenge for the diagnosis and treatment of tumors. Here, we describe an array-based system for identification of normal and cancer cells based on a “chemical nose
Autor:
Man H. Han, Ronnie L. Phillips, Ik-Bum Kim, Uwe H. F. Bunz, Bappaditya Samanta, Z. John Zhang, Vincent M. Rotello
Publikováno v:
Chemistry - A European Journal. 15:449-456
We describe a pyrophosphate (PPi) probe that is based on a fluorescent dicarboxylate-substituted poly(para-phenyleneethynylene) (PPE) and 10 nm cobalt-iron spinel nanoparticles (NPs) in aqueous media. The spinel NPs efficiently quench the fluorescenc
Autor:
Yu Bai, Ronnie L. Phillips, Bradley E. Carson, Todd L. Lowary, Laren M. Tolbert, Ik-Bum Kim, Uwe H. F. Bunz, Björn Tidbeck
Publikováno v:
Macromolecules. 41:7316-7320
The synthesis of two novel, water-soluble, sugar-substituted poly(p-phenyleneethynylene)s and their interactions with concanavalin A (Con A) and bacteria (Escherichia coli) are reported, and the issue of sensitivity enhancement is investigated. Both
Publikováno v:
Macromolecules. 40:5290-5293
The synthesis of two new water-soluble, carboxylate-substituted poly(p-phenyleneethynylene)s (PPE) is reported. These PPEs differ in their concentration of free carboxylate groups per repeat (two aryleneethynylenes) unit. The photophysical properties
Autor:
Partha S. Ghosh, Belma Erdogan, Chang-Cheng You, Oscar R. Miranda, Vincent M. Rotello, Ik-Bum Kim, Basar Gider, Uwe H. F. Bunz, Sai Archana Krovi
Publikováno v:
Nature Nanotechnology. 2:318-323
A sensor array containing six non-covalent gold nanoparticle-fluorescent polymer conjugates has been created to detect, identify and quantify protein targets. The polymer fluorescence is quenched by gold nanoparticles; the presence of proteins disrup
Publikováno v:
Bioconjugate Chemistry. 18:815-820
We have demonstrated synthesis and application of a water-soluble, folate-substituted poly(p-phenyleneethynylene) (PPE) as a fluorescent contrast agent to image cancer cells. This fluorescent polymer targets and images KB cancer cells in vitro with h
Publikováno v:
Macromolecules. 40:814-817
A water-soluble biotinylated poly(p-phenyleneethynylene) (PPE, 3) was synthesized by postfunctionalization of an amine−PPE precursor 2a and investigated for sensory responses in aqueous buffer at physiological pH. Polymer 3 shows similar sensitivit
Publikováno v:
Journal of Macromolecular Science, Part A. 41:1411-1424
2,3‐Dicyano‐5,7‐dimethyl‐6H‐1,4‐diazepine (1) is polymerized to a conjugated structure in solution by both alkaline sugar reagents and butoxide in n‐butanol and in the solid state by thermal annealing. From both infrared and nuclear mag
Autor:
Daniel J. Sandman, Jeffrey M. Njus, Ashok L. Cholli, Sangrama K. Sahoo, Dong-Chan Lee, Ik-Bum Kim
Publikováno v:
Macromolecular Symposia. 192:99-114
Topochemical solid state polymerization is a method of obtaining fully crystalline macromolecules. Herein, approaches to conjugated polymers via new solid state polymerizations and the properties of materials, especially polydiacetylenes(PDA), obtain