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035 _a(RuTPU)RU\TPU\network\15772
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090 _a650554
100 _a20161010a2016 k y0engy50 ba
101 0 _aeng
102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aHigh-resolution synchrotron X-ray analysis of bioglass-enriched hydrogels
_fS. N. Gorodzha [et al.]
203 _aText
_celectronic
300 _aTitle screen
330 _aEnrichment of hydrogels with inorganic particles improves their suitability for bone regeneration by enhancing their mechanical properties, mineralizability, and bioactivity as well as adhesion, proliferation, and differentiation of bone-forming cells, while maintaining injectability. Low aggregation and homogeneous distribution maximize particle surface area, promoting mineralization, cell-particle interactions, and homogenous tissue regeneration. Hence, determination of the size and distribution of particles/particle agglomerates in the hydrogel is desirable. Commonly used techniques have drawbacks. High-resolution techniques (e.g., SEM) require drying. Distribution in the dry state is not representative of the wet state. Techniques in the wet state (histology, µCT) are of lower resolution. Here, self-gelling, injectable composites of Gellan Gum (GG) hydrogel and two different types of sol-gel-derived bioactive glass (bioglass) particles were analyzed in the wet state using Synchrotron X-ray radiation, enabling high-resolution determination of particle size and spatial distribution. The lower detection limit volume was 9 × 10−5 mm3. Bioglass particle suspensions were also studied using zeta potential measurements and Coulter analysis. Aggregation of bioglass particles in the GG hydrogels occurred and aggregate distribution was inhomogeneous. Bioglass promoted attachment of rat mesenchymal stem cells (rMSC) and mineralization.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Biomedical Materials Research - Part A
_oScientific Journal
_d[s. a.]
463 _tVol. 104, iss. 5
_v[P. 1194–1201]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
701 1 _aGorodzha
_bS. N.
_cphysicist
_cresearch engineer of Tomsk Polytechnic University
_f1989-
_gSvetlana Nikolaevna
_2stltpush
_3(RuTPU)RU\TPU\pers\36022
701 1 _aDouglas
_bT. E. L.
_gTimothy
701 1 _aSamal
_bS. K.
_gSangram
701 1 _aDetsch
_bR.
_gRainer
701 1 _aCholewa-Kowalska
_bK.
_gKatarzyna
701 1 _aBraeckmans
_bK.
_gKevin
701 1 _aBoccaccini
_bA. R.
_gAldo
701 1 _aSkirtach
_bA. G.
_gAndre
701 1 _aWeinhardt
_bV.
_gVenera
701 1 _aBaumbach
_bT.
_gTilo
701 1 _aSurmenev
_bR. A.
_cphysicist
_cAssociate Professor of Tomsk Polytechnic University, Senior researcher, Candidate of physical and mathematical sciences
_f1982-
_gRoman Anatolievich
_2stltpush
_3(RuTPU)RU\TPU\pers\31885
701 1 _aSurmeneva (Ryabtseva)
_bM. A.
_cspecialist in the field of material science
_cengineer-researcher of Tomsk Polytechnic University, Associate Scientist
_f1984-
_gMaria Alexandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\31894
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра экспериментальной физики (ЭФ)
_h7596
_2stltpush
_3(RuTPU)RU\TPU\col\21255
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра теоретической и экспериментальной физики (ТиЭФ)
_bЦентр технологий (ЦТ)
_h408
_2stltpush
_3(RuTPU)RU\TPU\col\20620
801 2 _aRU
_b63413507
_c20161215
_gRCR
856 4 _uhttp://dx.doi.org/10.1002/jbm.a.35642
942 _cCF