scholarly journals X-Ray Imaging of Poly(Ethylene Glycol) Hydrogels Without Contrast Agents

2010 ◽  
Vol 16 (6) ◽  
pp. 1597-1600 ◽  
Author(s):  
Eric M. Brey ◽  
Alyssa Appel ◽  
Yu-Chieh Chiu ◽  
Zhong Zhong ◽  
Ming-Huei Cheng ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Contrast Agents ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
X Ray Imaging ◽  
Poly Ethylene

Poly(ethylene glycol)-poly(ε-caprolactone) Iodinated Nanocapsules as Contrast Agents for X-ray Imaging

2013 ◽  
Vol 30 (8) ◽  
pp. 2023-2035 ◽  
Author(s):  
François Hallouard ◽  
Stéphanie Briançon ◽  
Nicolas Anton ◽  
Xiang Li ◽  
Thierry Vandamme ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Contrast Agents ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
X Ray Imaging ◽  
Poly Ethylene

X-ray imaging technique using colloid solution of Au/silica/poly(ethylene glycol) nanoparticles

2013 ◽  
Vol 17 (7) ◽  
pp. 507-514 ◽  
Author(s):  
Y. Kobayashi ◽  
H. Inose ◽  
R. Nagasu ◽  
T. Nakagawa ◽  
Y. Kubota ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Imaging Technique ◽  
Colloid Solution ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
X Ray Imaging ◽  
Poly Ethylene

X-Ray Imaging Technique Using Colloid Solution of AgI/Silica/Poly(ethylene glycol) Nanoparticles

2012 ◽  
Vol 1 (2) ◽  
pp. 127-130 ◽  
Author(s):  
Yoshio Kobayashi ◽  
Tetsuya Ayame ◽  
Tomohiko Nakagawa ◽  
Kohsuke Gonda ◽  
Noriaki Ohuchi
Keyword(s):  
Ethylene Glycol ◽  
Imaging Technique ◽  
Colloid Solution ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
X Ray Imaging ◽  
Poly Ethylene

scholarly journals Preparation of Au/silica/poly(ethylene glycol) nanoparticle colloid solution and its use in x-ray imaging process

2015 ◽  
Vol 1 (2) ◽  
pp. 83-88 ◽  
Author(s):  
Yoshio Kobayashi ◽  
Ryoko Nagasu ◽  
Tomohiko Nakagawa ◽  
Yohsuke Kubota ◽  
Kohsuke Gonda ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Colloid Solution ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
X Ray Imaging ◽  
Poly Ethylene ◽  
Nanoparticle Colloid

scholarly journals Preparation of AgI/Silica/Poly(Ethylene Glycol) Nanoparticle Colloid Solution and X-Ray Imaging Using It

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Yoshio Kobayashi ◽  
Tetsuya Ayame ◽  
Tomohiko Nakagawa ◽  
Yohsuke Kubota ◽  
Kohsuke Gonda ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Sol Gel ◽  
Particle Surface ◽  
Iodine Concentration ◽  
Colloid Solution ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
X Ray Imaging ◽  
Poly Ethylene ◽  
Surface Modified

This work performed X-ray imaging of mouse by using aqueous colloid solution of AgI nanoparticles coated with silica (AgI/SiO2) and then surface-modified with poly(ethylene glycol) (PEG) (AgI/SiO2/PEG). A colloid solution of AgI nanoparticles was prepared by mixing silver perchlorate and potassium iodide in water. The AgI nanoparticles were surface-modified with 3-mercaptopropyltrimethoxysilane and then were silica-coated by a sol-gel reaction between tetraethylorthosilicate and H2O catalyzed with NaOH in ethanol. The AgI/SiO2 particle surface was modified with PEG by using methoxy PEG silane CH3OCH2CH2OnCH2CONHC3H6SiOC2H53. The AgI/SiO2/PEG colloid solution revealed a computed tomography value as high as 1343.6 HU at an iodine concentration of 0.1 M, which was higher than a commercial X-ray contrast agent with the same iodine concentration. Tissues of mouse could be imaged by injecting the concentrated colloid solution into them.

scholarly journals Chemical Synthesis and Characterization of Poly(poly(ethylene glycol) methacrylate)-Grafted CdTe Nanocrystals via RAFT Polymerization for Covalent Immobilization of Adenosine

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 77 ◽  
Author(s):  
Trinh Duy Nguyen ◽  
Hieu Vu-Quang ◽  
Thanh Sang Vo ◽  
Duy Chinh Nguyen ◽  
Dai-Viet N. Vo ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Photoelectron Spectroscopy ◽  
Raft Polymerization ◽  
Condensation Reaction ◽  
Covalent Bond ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
Glycol Methacrylate ◽  
Cdte Qds ◽  
Poly Ethylene

This paper describes the functionalization of poly(poly(ethylene glycol) methacrylate) (PPEGMA)-grafted CdTe (PPEGMA-g-CdTe) quantum dots (QDs) via surface-initiated reversible addition–fragmentation chain transfer (SI-RAFT) polymerization for immobilization of adenosine. Initially, the hydroxyl-coated CdTe QDs, synthesized using 2-mercaptoethanol (ME) as a capping agent, were coupled with a RAFT agent, S-benzyl S′-trimethoxysilylpropyltrithiocarbonate (BTPT), through a condensation reaction. Then, 2,2′-azobisisobutyronitrile (AIBN) was used to successfully initiate in situ RAFT polymerization to generate PPEGMA-g-CdTe nanocomposites. Adenosine-above-PPEGMA-grafted CdTe (Ado-i-PPEGMA-g-CdTe) hybrids were formed by the polymer shell, which had successfully undergone bioconjugation and postfunctionalization by adenosine (as a nucleoside). Fourier transform infrared (FT-IR) spectrophotometry, energy-dispersive X-ray (EDX) spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy results indicated that a robust covalent bond was created between the organic PPEGMA part, cadmium telluride (CdTe) QDs, and the adenosine conjugate. The optical properties of the PPEGMA-g-CdTe and Ado-i-PPEGMA-g-CdTe hybrids were investigated by photoluminescence (PL) spectroscopy, and the results suggest that they have a great potential for application as optimal materials in biomedicine.

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