Study on interaction between Tb(III) and poly(N-isopropylacrylamide)

Yin, Weiqing; Chen, Mingqing; Lu, Tianhong; Akashi, Mitsuru; Huang, Xiaohua

doi:10.1016/j.eurpolymj.2005.12.014

Cited by 21 publications

(9 citation statements)

References 22 publications

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“…The corresponding FTIR spectrum of the conjugated nanocrystals (Figure 5d) shows two peaks around 1624 and 1558 cm À1 , which are commonly ascribed to amide I (C=O stretching vibration of amide) and amide II (N À H bending vibration of the secondary amide). [33,34] The thiol-functionalized magnetic nanocrystals can be further attached to surfaces of gold colloids by the strong covalent AuÀS bond, producing composite nanostructures as shown in Figure 7d-f. Originally, the gold colloids are stabilized in water by the citrate ions.…”

Section: Bioconjugationmentioning

confidence: 98%

One‐Step Synthesis of Highly Water‐Soluble Magnetite Colloidal Nanocrystals

Biasini

et al. 2007

Chemistry A European J

226

199

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A high-temperature solution-phase hydrolysis approach has been developed for the synthesis of colloidal magnetite nanocrystals with well-controlled size and size distribution, high crystallinity, and high water solubility. The synthesis was accomplished by the hydrolysis and reduction of iron(III) cations in diethylene glycol with a rapidly injected solution of sodium hydroxide at an elevated temperature. The high reaction temperature allows for control over size and size distribution and yields highly crystalline products. The superior water solubility is achieved by using a polyelectrolyte, that is, poly(acrylic acid) as the capping agent, the carboxylate groups of which partially bind to the nanocrystal surface and partially extend into the surrounding water. The direct synthesis of water-soluble nanocrystals eliminates the need for additional surface modification steps which are usually required for treating hydrophobic nanocrystals produced in nonpolar solvents through the widely recognized pyrolysis route. The abundant carboxylate groups on the nanocrystal surface allow further modifications, such as bioconjugation, as demonstrated by linking cysteamine to the particle surface. The monodisperse, highly water-soluble, superparamagnetic, and biocompatible magnetite nanocrystals should find immediate important biomedical applications.

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Section: Bioconjugationmentioning

confidence: 98%

One‐Step Synthesis of Highly Water‐Soluble Magnetite Colloidal Nanocrystals

Biasini

et al. 2007

Chemistry A European J

226

199

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“…However, organic low-molecular RE complexes have serious limitations in practical applications because of their poor mechanical properties and physicochemical stabilities. By contrast, polymeric high-molecular RE complexes not only possess unique fluorescence properties of the RE ions but also own good mechanical toughness, chemical stability and excellent processability [4][5][6]. Especially, the development of fluorescent films with robust flexibility, high transparency and excellent thermostability has become a hot research topic, for their good prospects of application in e-papers, roll-up displays and polymeric light-emitting devices [7].…”

Section: Introductionmentioning

confidence: 94%

Fluorescence-color-tunable and transparent polyarylene ether nitrile films with high thermal stability and mechanical strength based on polymeric rare-earth complexes for roll-up displays

Tang

Wei

et al. 2013

Materials Letters

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“…The absorption coefficient of Tb(III) is small at ultraviolet region, while the PNNS-Tb(III) complex has a strong absorption in the ultraviolet range and it emits strong green luminescence. The intramolecular energy transfer efficiency reaches 50% obtained according to the ratio of the peak areas [21], suggesting that PNNS transfers its energy to Tb(III) after absorbing the photon energy and then the excited Tb(III) generates the enhanced fluorescence [22,23]. It means the energy level of the triplet state of Tb(III) approaches to PNNS and the energy level of PNNS are suitable for transferring energy to Tb(III).…”

Section: Complexmentioning

confidence: 99%