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

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

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 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

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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