Elucidation of adsorption mechanism of bone-staining agent alizarin red S on hydroxyapatite by FT-IR microspectroscopy

Moriguchi, Takeshi; Yano, Kazuyuki; Nakagawa, Souhei; Kaji, Fumihiro

doi:10.1016/s0021-9797(02)00157-1

Cited by 127 publications

(93 citation statements)

References 18 publications

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“…18 Judging from the results of isothermic curves (FIGURE 3 and 4) and adsorption constants (TABLE 2), Fe and Pb sites on the present adsorbents unambiguously act as adsorption sites. Therefore, for observation of actual ARS-adsorbing status, Fe(III)-and Pb(II)-treated apatites adsorbing ARS were recovered after adsorption tests and analyzed by FT-IR microspectroscopy, compared with the original non-adsorbed cases.…”

Section: Surface Analysis Of Fe(iii)-and Pb(ii)-treated Hydroxyapatitesmentioning

confidence: 53%

“…Similarly to the above test (Section 2.3), the mixture was filtered via the PTFE membrane filter, and the filtrate was analyzed by TOC to evaluate desorption (%) by using Equation 2, where M EL is ARS quantity eluted in 10 mL of each test solution (mol), and M AD is ARS quantity adsorbed on 10 mg of each adsorbent. 18 For checking the structure of ARS eluted, the recovered ARS solution was simultaneously analyzed by a UV-VIS spectrophotometer, U-2000 equipped with a temperature controller, SDR-30 (Hitachi Ltd., Tokyo, Japan).…”

Section: Desorption Testmentioning

confidence: 99%

“…The decrease is possibly ascribed to disturb adsorption 21 of ARS molecules by PBS-constituent phosphate ions (H 2 PO 4 -, HPO 4 2-and PO 4 3-), which possibly have strong affinity to Pb sites similarly to Ca sites. 18,22,23 In addition, S-shaped isothermic curves appear obviously, which arises from adsorption inhibition by solvent molecules. 19,20 Although HAP-300-Fe in PBS indicated the S-shaped curve (FIGURE 3), or such adsorption inhibition at relatively low ARS concentration (initial concentration C 0 < 0.10 mM), its adsorption quantity was dramatically and eventually improved at the higher concentration.…”

Section: Adsorption Behaviors Of Ars In H 2 O and Pbsmentioning

confidence: 99%

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ADSORBABILITY OF ALIZARIN RED S ON Fe(III)- AND Pb(II)-TREATED HYDROXYAPATITES IN WATER

Moriguchi

Nakagawa

Kaji

2010

Phosphorus Research Bulletin

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We studied on adsorbability of alizarin red S (ARS) on Fe(III)-and Pb(II)-treated hydroxyapatites in distilled water (H 2 O) and phosphate buffer solution (PBS). The Fe(III)-treated apatites indicated high adsorption capacity from their isothermic curves both in H 2 O and PBS: The capacities in PBS were larger than those in H 2 O. On the other hand, adsorption capacities of Pb(II)-treated apatites in PBS were much lower than those in H 2 O. Surface analysis of those treated apatites by electron probe micro analysis and FT-IR microspectroscopy affords significant information on surface element (P, Ca, Fe, or Pb) distribution and interaction patterns between ARS and the corresponding metal (Fe or Pb) sites. Eventually, predominant adsorption mechanisms were elucidated as follows, chelate form adsorption for Fe(III)-treated apatites and salt form adsorption for Pb(II)-treated apatites.

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Section: Surface Analysis Of Fe(iii)-and Pb(ii)-treated Hydroxyapatitesmentioning

confidence: 53%

Section: Desorption Testmentioning

confidence: 99%

Section: Adsorption Behaviors Of Ars In H 2 O and Pbsmentioning

confidence: 99%

See 1 more Smart Citation

ADSORBABILITY OF ALIZARIN RED S ON Fe(III)- AND Pb(II)-TREATED HYDROXYAPATITES IN WATER

Moriguchi

Nakagawa

Kaji

2010

Phosphorus Research Bulletin

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“…It is also used to stain biological specimens such as mineralized bones in vertebrate groups and small invertebrate embryos. 1,2 Most of the treatments for such dyeladen effluents are largely inadequate. 3 Until now various adsorbents have been studied for the removal of ARS including multiwalled carbon nanotubes 4 , cyanodon dactylon 5 , menthe waste 6 , Citrullus lanatus Peels 7 , magnetic chitosan 8 , alumina 9 , activated clay modified by iron oxide 10 , activated carbon and other carbon-based materials.…”

Section: Introductionmentioning

confidence: 99%

Role of Cetyltrimethyl Ammonium Bromide on Enhanced Adsorption and Removal of Alizarin Red S using Amino-Functionalized Graphene Oxide

Chananchana¹,

Nuengmatcha²,

Chanthai³

2017

Orient. J. Chem

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This research was aimed to study the adsorption capacity and removal of alizarin Red S (ARS) dye using amino-functionalized graphene oxide (NH 2 -GO) as an adsorbent in the presence of CTAB. The optimum conditions were consisted of 100 mg/L initial concentration of ARS with 0.015 g adsorbent at solution pH 2.0. The adsorption equilibrium was completely reached within 60 min. at 28°C. The maximum adsorption capacity of NH 2 -GO for ARS in the presence of CTAB (0.6 mM) was 135.1 mg/g, about three times higher than that of NH 2 -GO (42.0 mg/g) in the absence of CTAB. The adsorption kinetics well fitted using a pseudo second-order kinetic model. The intraparticle diffusion model obtained clearly defined its rate-limiting step. Changes in free energy, enthalpy and entropy were also evaluated. The overall adsorption process was endothermic reaction. The adsorption isotherm for NH 2 -GO in the presence of CTAB better fit with Langmuirn model. It is, therefore, evident that the synergic effect of CTAB enhances the adsorption capacity and removal of ARS via their electrostatic interactions among the three reacting components in the adsorption reaction system.

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“…[14] One hypothesis is that two phenyl sulfonate groups bind a calcium ion by salt formation while the phosphonate group competes with serum phosphate ions and serves as a monodentate ligand for calcium binding. [15] In order to explore bone targeting in vivo, phosphonated NIR fluorophores were administered intravenously into mice, and their biodistribution and clearance measured over 4 h and 24 h. As shown in Figure 3a-b, P700H and P800H exhibited hepatic clearance from liver to duodenum, while P700SO3 and P800SO3 were eliminated from the body by renal clearance into urine without nonspecific uptake in non-bone tissues and organs due to their low logD and high polarity. [12] By 24 h post-injection, all P700 and P800 NIR fluorophores were eliminated from the body and only bone signal was evident.…”

mentioning

confidence: 99%

Phosphonated Near‐Infrared Fluorophores for Biomedical Imaging of Bone

Hyun¹,

Wada²,

Bao³

et al. 2014

Angewandte Chemie

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The conventional method for creating targeted contrast agents is to conjugate separate targeting and fluorophore domains. A new strategy is based on the incorporation of targeting moieties into the non‐delocalized structure of pentamethine and heptamethine indocyanines. Using the known affinity of phosphonates for bone minerals in a model system, two families of bifunctional molecules that target bone without requiring a traditional bisphosphonate are synthesized. With peak fluorescence emissions at approximately 700 or 800 nm, these molecules can be used for fluorescence‐assisted resection and exploration (FLARE) dual‐channel imaging. Longitudinal FLARE studies in mice demonstrate that phosphonated near‐infrared fluorophores remain stable in bone for over five weeks, and histological analysis confirms their incorporation into the bone matrix. Taken together, a new strategy for creating ultra‐compact, targeted near‐infrared fluorophores for various bioimaging applications is described.

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Elucidation of adsorption mechanism of bone-staining agent alizarin red S on hydroxyapatite by FT-IR microspectroscopy

Cited by 127 publications

References 18 publications

ADSORBABILITY OF ALIZARIN RED S ON Fe(III)- AND Pb(II)-TREATED HYDROXYAPATITES IN WATER

ADSORBABILITY OF ALIZARIN RED S ON Fe(III)- AND Pb(II)-TREATED HYDROXYAPATITES IN WATER

Role of Cetyltrimethyl Ammonium Bromide on Enhanced Adsorption and Removal of Alizarin Red S using Amino-Functionalized Graphene Oxide

Phosphonated Near‐Infrared Fluorophores for Biomedical Imaging of Bone

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