Abstract
Each dental adhesive contains a specific functional monomer that determines its actual adhesive performance to tooth tissue. 4-methacryloxyethyl trimellitic acid (4-MET) is well-known as one of the functional monomers mostly available and consequently widely used in commercial adhesives. We therefore characterized the chemical interaction of 4-MET with hydroxyapatite (HAp) using X-ray Photoelectron Spectroscopy (XPS). XPS revealed that the peak representing -COO- of 4-MET shifted to a lower binding energy, when 4-MET was adsorbed onto HAp. Deconvolution of this shifted peak disclosed two components with a peak representing unreacted carboxyl groups and ester groups, and a peak suggesting chemical bonding of other carboxyl groups to Ca of HAp. XPS spectra of HAp treated with 4-MET also disclosed the surface to be enriched in calcium and decreased in phosphorus, indicating that phosphorus was extracted at a relatively higher rate than calcium. It can thus be concluded that true chemical bonding of 4-MET with calcium present in HAp occurred, as it was proven using XPS.
| Original language | English |
|---|---|
| Pages (from-to) | 645-649 |
| Number of pages | 5 |
| Journal | Dental Materials Journal |
| Volume | 25 |
| Issue number | 4 |
| Publication status | Published - Dec 2006 |
Fingerprint
Keywords
- 4-MET
- Adhesion
- XPS
ASJC Scopus subject areas
- Dentistry(all)
- Biomaterials
Cite this
Analysis of chemical interaction of 4-MET with hydroxyapatite using XPS. / Nagakane, Kouji; Yoshida, Yasuhiro; Hirata, Isao; Fukuda, Ryuichi; Nakayama, Youichi; Shirai, Kenichi; Ogawa, Tatsuyuki; Suzuki, Kazuomi; Van Meerbeek, Bart; Okazaki, Masayuki.
In: Dental Materials Journal, Vol. 25, No. 4, 12.2006, p. 645-649.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Analysis of chemical interaction of 4-MET with hydroxyapatite using XPS
AU - Nagakane, Kouji
AU - Yoshida, Yasuhiro
AU - Hirata, Isao
AU - Fukuda, Ryuichi
AU - Nakayama, Youichi
AU - Shirai, Kenichi
AU - Ogawa, Tatsuyuki
AU - Suzuki, Kazuomi
AU - Van Meerbeek, Bart
AU - Okazaki, Masayuki
PY - 2006/12
Y1 - 2006/12
N2 - Each dental adhesive contains a specific functional monomer that determines its actual adhesive performance to tooth tissue. 4-methacryloxyethyl trimellitic acid (4-MET) is well-known as one of the functional monomers mostly available and consequently widely used in commercial adhesives. We therefore characterized the chemical interaction of 4-MET with hydroxyapatite (HAp) using X-ray Photoelectron Spectroscopy (XPS). XPS revealed that the peak representing -COO- of 4-MET shifted to a lower binding energy, when 4-MET was adsorbed onto HAp. Deconvolution of this shifted peak disclosed two components with a peak representing unreacted carboxyl groups and ester groups, and a peak suggesting chemical bonding of other carboxyl groups to Ca of HAp. XPS spectra of HAp treated with 4-MET also disclosed the surface to be enriched in calcium and decreased in phosphorus, indicating that phosphorus was extracted at a relatively higher rate than calcium. It can thus be concluded that true chemical bonding of 4-MET with calcium present in HAp occurred, as it was proven using XPS.
AB - Each dental adhesive contains a specific functional monomer that determines its actual adhesive performance to tooth tissue. 4-methacryloxyethyl trimellitic acid (4-MET) is well-known as one of the functional monomers mostly available and consequently widely used in commercial adhesives. We therefore characterized the chemical interaction of 4-MET with hydroxyapatite (HAp) using X-ray Photoelectron Spectroscopy (XPS). XPS revealed that the peak representing -COO- of 4-MET shifted to a lower binding energy, when 4-MET was adsorbed onto HAp. Deconvolution of this shifted peak disclosed two components with a peak representing unreacted carboxyl groups and ester groups, and a peak suggesting chemical bonding of other carboxyl groups to Ca of HAp. XPS spectra of HAp treated with 4-MET also disclosed the surface to be enriched in calcium and decreased in phosphorus, indicating that phosphorus was extracted at a relatively higher rate than calcium. It can thus be concluded that true chemical bonding of 4-MET with calcium present in HAp occurred, as it was proven using XPS.
KW - 4-MET
KW - Adhesion
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=33947514273&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947514273&partnerID=8YFLogxK
M3 - Article
C2 - 17338295
AN - SCOPUS:33947514273
VL - 25
SP - 645
EP - 649
JO - Dental Materials Journal
JF - Dental Materials Journal
SN - 0287-4547
IS - 4
ER -