89-91 - Polskie Stowarzyszenie Biomateriałów

More documents

Recommendations

Info

measured samples showed elastic behavior without presence of brittle cracks. This fact should be caused by nonhomogenous distribution of polyamide nanofibers and HA particles, respectively nonhomogenous structure caused by preparation (for ilustration see FIG.1). The brittle behavior of GELHA and NF-GELHA composites (in comparison with PAA-COLHA) is also illustrated by higher values of Young’s modulus. Based on these results, further optimization of mechanical properties will be carried out by selecting the volume ratio of the fiber reinforcement to the matrix and also reinforcement suitable orientation and layering. For HA concentration determination the automatically mapping (software Labspec ver. 2.08) has been used. Selected spectrum and collection of measured Raman spectra are depicted in FIG.3. Concentration maps were calculated on the base of band belongs to PO 4 3- group at 964cm -1 . Mapping of HA concentration in examined composites showed a sufficient and comparable HA dispersion in all cases. Better HA dispersion was showed in the case of NF-GELHA composite. This homogeneity can be connected and probably influence the mechanical properties. Conclusions This study has investigated the possibilities of preparation of composite materials based on various reinforcing materials and matrices. The influence of different composite constituents on mechanical properties of composites mainly based on the biodegradable materials was verified. Further optimization of mechanical properties and verification of proper structure composition are subjects of the future research. acknowledgements This study was supported by the Czech Science Foundation under project No. 106/09/1000, and by Ministry of Education project Transdisciplinary Research in Biomedical Engineering II., No. MSM 6840770012. References [1] Ramakrishna S., Huang Z.M., Kumar G.V., Batchelor A.W., Mayer J.: 2004, An Introduction to Biocomposites, Vol.1, 1st ed., Imperial College Press, London. [2] Manikandan M., Naira K.C., Thomasa S., Groeninck G., Comp Sci Tech 61 (2001) 2519–2529. [3] Murugan R., Ramakrishna S., Comp Sci and Technol. 65 (2005) 2386-2406. [4] Evis Z., Sato M., Webster T.J., J. Biomed Mater Res A. 78 (2006) 500-7. [5] Engler A.J., Sen S., Sweeney H.L., Fischer D.E., Cell 126 (2006) 677-89. dISoRdER of ThE mInERal mETaBolISm of ThE oRal CavITy foR PaTIEnTS WITh odonTogEnIC aBSCESES In maxIllofaCIal aREa and WayS foR ITS CoRRECTIon WITh STandaRd mEThodS of Rehabilitation Y.M.KAZAKOVA, I.O.POHODENKO-CHUDAKOVA* belAruSiAn collAborAtinG centre oF eAcMFS, belAruSiAn StAte MedicAl uniVerSity, MinSK, belAruS *MAilto: iP-c@yAndex.ru [Engineering of Biomaterials, 89-91, (2009), 15-16] Introduction Examination of the oral fluid (OF) has great potential in different diseases diagnostics now. Its indices describe oral cavity homeostasis as well as human body state in general [6]. Bone is a calcified tissue consisted of cells put into the main hard substance. Inorganic components make 70% of this substance and the principal of them is hydroxyapatite [3]. Due to this, great attention is paid to the ions calcium content and its compounds into the fluid systems of the human body for patients with pathological processes of the bone tissue as well as with pyoinflammatory complications of osteomyelitis presented by abscesses and phlegmons [2,4]. Pyoinflammatory process of any etiology is accompanied by morphological and functional disorders. It means that many enzymatic reactions are involved into the pathological process. Hydrolytic enzyme – acid phosphatase (AP) – should be considered as marker of this process. Many works give up to the examination of AP activity into the biological environment of the human body [1,5]. Last time, more attention is paid for micromorphological indices of the OF and its fractions examination [3]. Indices of the OF microcrystallization describe correctly processes of mineralization of maxillofacial area. But there are few works about changes of the OF microcrystallization indices for patients with pyoinflammatory diseases in maxillofacial area during the treatment. All this confirms the urgency of this work. aim of work is to study mineral metabolism of the oral cavity for patients with odontogenic abscesses in the maxillofacial area and ways of its correction with standard complex of rehabilitation methods. objects and methods We examined 30 patients with odontogenic abscesses in maxillofacial area. 15 patients had abscesses of mylohyoideus area and 15 patients with abscesses of pterygoid mandibular area. When patients went for medical care, doctors used intraoral approach method for the primary surgical d-bridement (PSD) of the suppurative focus and patients were instituted for the standard course of complex antiphlogistic therapy. Bandages were changed every day.
The group of control consisted of 10 healthy persons. AF activity indices were determined with kinesthetic method using the set for acid phosphatase indices fixation (PBS–«ORGENICS», France). Results were fixed in U/l. Ca 2+ ions content was fixed with electrolyte analyzer AVL 984–S (Graz, Austria) in millimole/l. OF microcrystallization indices were determined by our own method and results fixed in Units. All indices were fixed in different time: before PSD and 5 days after the treatment started. Results During examination of the AF activity we found its enzyme level composed 32,75±5,13 and was authentically different from standard (p
Page 1 and 2: i N Ż Y N i e r i A B i O M A T e
Page 3 and 4: Wskazówki dla autorów 1. Prace do
Page 5 and 6: DEVELOMENT OF A PHYSIOGNOMIC HIP JO
Page 7 and 8: V oCEna STanu PoWIERzChnI STalI STo
Page 9 and 10: V zaChoWanIE ElEkTRoChEmICznE SToPu
Page 11 and 12: V odPoRnoŚć koRozyjna SToPu Co-Cr
Page 13 and 14: fIg.1. Structure of PEg-boligo(dTo-
Page 15 and 16: CoRRESPondEnCE BETWEEn TEETh BonE d
Page 17 and 18: OF sampling performed fasting. This
Page 19 and 20: oth tests the differences between g
Page 21 and 22: 0 materials and methods For present
Page 23 and 24: RESulTS foR ComPlEx PoSToPERaTIvE P
Page 25: fIg.1. SEm images of gElha (a) comp
Page 29 and 30: mICRo- and nanoPaTTERnEd SuRfaCES f
Page 31 and 32: 0 fIg.1. vascular or bone-derived c
Page 33 and 34: Oxidized cellulose has been widely
Page 35 and 36: the highest cell population densiti
Page 37 and 38: The cells were cultivated in 1.5 ml
Page 39 and 40: References [1]. Bacakova L., Svorci
Page 41 and 42: 0 fluorescent labeled Annexin V and
Page 43 and 44: References [1] Cwalina B., Turek A.
Page 45 and 46: Conclusions Different results on th
Page 47 and 48: fIg.5. microscopic view 2 weeks aft
Page 49 and 50: 38 REAKCJE ZACHODZĄCE NA IMPLANCIE
Page 51 and 52: 40 STRUKTURA I ODPORNOść KOROZYJN
Page 53 and 54: 42 Podsumowanie Proces niskotempera
Page 55 and 56: 44 RYS.1. Krzywe zrywania drutów N
Page 57 and 58: 46 RYS.9. Wsunięcie klamry RYS.10.
Page 59 and 60: 48 ten sam ubytek uzupełniono przy
Page 61 and 62: 50 powierzchni elementów z elimina
Page 63 and 64: 52 WPłYW MODYFIKACJI POWIERzCHNI T
Page 65 and 66: 54 różny kształt i wykazywały s
Page 67 and 68: 56 ujawniła występowanie takich p
Page 69 and 70: 58 korozji tworzyw metalicznych by
Page 71 and 72: 60 RYS.3. Grupa kontrolna - 12 tydz
Page 73 and 74: 62 800 0 C mogą być (1) zmiany w
Page 75 and 76: 64 RYS.3. Wpływ warstw TiO 2 i tem
Page 77 and 78:
66 NOWE HYBRYDOWE POWłOKI DLC- POL
Page 79 and 80:
68 Element C [at.%] DLC- PDMS-h PDM
Page 81 and 82:
70 powierzchniowejwarstwyamorficzne
Page 83 and 84:
72 Stabilność warStwy platynowej
Page 85 and 86:
74 Zmierzone widmo elektronów Auge
Page 87 and 88:
76 i polerowane. Badania topografii
Page 89 and 90:
78 kowych „if-then” zostały pr
Page 91 and 92:
80 fizjologiczną czynność układ
Page 93 and 94:
82 podsumowanie Ponad połowa chory
Page 95 and 96:
84 materiały i metody syntezy Mono
Page 97 and 98:
86 resonance lines Sequences Lactid
Page 99 and 100:
88 powinny zmieniać swoich właśc
Page 101 and 102:
90 ryS.4. naprężenie przy zerwani
Page 103 and 104:
92 wyniki badań Wyniki badań in v
Page 105 and 106:
94 ryS.1. model geometryczny: a) wi
Page 107 and 108:
96 o średnicy d 1=1,0mm i kącie 2
Page 109 and 110:
98 pozauStrojowe badania nad tokSyC
Page 111 and 112:
100 wykorzystane do badań były po
Page 113 and 114:
102 ma jednak rodzaj i pochodzenie
Page 115 and 116:
104 średnica drutu, d Wire diamete
Page 117 and 118:
106 todą mikroskopii skaningowej S
Page 119 and 120:
108 2b) a ponadto charakteryzują s
Page 121 and 122:
110 Prognozowanie właściwości me
Page 123 and 124:
112 ne na podstawie wybranych wynik
Page 125 and 126:
114 rys.1. a) Przykładowy obraz se
Page 127 and 128:
116 analiza numeryczna i doświadcz
Page 129 and 130:
118 rys.4. Porównanie wartości pr
Page 131 and 132:
120 mikroskopię świetlną, skanin
Page 133 and 134:
122 dla połączeń stomatologiczny
Page 135 and 136:
124 rys.1. krzywa tg i dtg degradac
Page 137 and 138:
126 mikrostruktura i właściwości
Page 139 and 140:
128 rys.2. mikrostruktura stopu ti-
Page 141 and 142:
130 o normę ISO/TS 11405:2003: Den
Page 143 and 144:
132 bezpośrednie oddziaływanie na
Page 145 and 146:
134 Materiał Material Kompozyt C/S
Page 147 and 148:
136 wPływ materiałów węglowych
Page 149 and 150:
138 Materiał Material Nuclear carb
Page 151 and 152:
140 Piśmiennictwo [1] Paluch D., S
Page 153 and 154:
142 kompozytów znaleziono zależno
Page 155 and 156:
144 określoną szybkością i w ok
Page 157 and 158:
146 materiały i metody Włókna po
Page 159 and 160:
148 zasTosoWanie spekTroskopii uV-V
Page 161 and 162:
150 kompozyToWe Włókna polilakTyd
Page 163 and 164:
152 zachoWanie elekTrochemiczne sTo
Page 165 and 166:
154 piśmiennictwo [1]. M. C. Advin
Page 167 and 168:
156 próbki ampicyliny sterylizowan
Page 169 and 170:
158 i właściwości wolnorodnikowy
Page 171 and 172:
160 podziękowania Badania te były
Page 173 and 174:
162 rys.4. Wpływ mocy mikrofalowej
Page 175 and 176:
164 chorobach serca [4]. Wolne rodn
Page 177 and 178:
166 WłaściWości paramagneTyczne
Page 179 and 180:
168 piśmiennictwo [1] J. Marciniak
Page 181 and 182:
170 rys.3. Wpływ mocy mikrofalowej
Page 183 and 184:
172 dowym pochodzenia naturalnego.
Page 185 and 186:
174 Wstęp Cladosporium herbarum to
Page 187 and 188:
176 analiza WyTrzymałościoWa i od
Page 189 and 190:
178 Wykres 2. prędkości przejści
Page 191 and 192:
180 Ocena wybranych cech włóknino
Page 193 and 194:
182 wnioski Parametr Oarameter Wytr
Page 195 and 196:
184 sics SP 8800, stosując chlorof
Page 197 and 198:
186 piśmiennictwo [1] Li S, Vert M
Page 199 and 200:
188 w przypadku ścian tętniaków
Page 201 and 202:
190 materiały i metody badawcze Do
Page 203 and 204:
192 mianowymi i ich rozpychaniem. N
Page 205 and 206:
194 wstęp Zastosowanie nanokompozy
Page 207 and 208:
196 apatyt zdecydowanie większą p
Page 209 and 210:
198 wprowadzenie Częstą przyczyn
Page 211 and 212:
200 Przeprowadzona ocena mikrostruk
Page 213 and 214:
202 próbek zostały zaprezentowane
Page 215 and 216:
204 rys.6. pozostałości po przepr
Page 217 and 218:
206 o b r a z w y j - ściowy bezpo
Page 219 and 220:
208 właściwości skóry ludzkiej
Page 221 and 222:
210 dla kolagenu w kierunku niższy
Page 223 and 224:
212 komodułowe włókna węglowe o
Page 225 and 226:
214 degradacja mieszanin polimerowy
Page 227 and 228:
216 rys.1.wykresy przedstawiające
Page 229 and 230:
218 wPływ metody przetwórstwa na
Page 231 and 232:
220 rys. 1. krzywa dsc dla próbki
Page 233 and 234:
222 rzenia elastycznych mikronarzę
Page 235 and 236:
224 dyskusja wyników Otrzymane ret
Page 237 and 238:
226 Podsumowanie Przeprowadzona ana
Page 239 and 240:
228 [3]. Podstawowym problemem, dot
Page 241 and 242:
230 we wszystkich wyciągach stwier
Page 243 and 244:
232 Farmakokinetyka - analiza zagad
Page 245 and 246:
234 X 0-masa leku podana dożylnie
Page 247 and 248:
236 włókno polimerowe [13]. W pon
Page 249 and 250:
238 analiZa ZmęcZeniowa transpedik
Page 251 and 252:
240 na wartość momentów gnących
Page 254 and 255:
prądu w zakresie potencjałów wys
Page 256 and 257:
inkubowano 15 minut w ciemności z
Page 258 and 259:
Badania in vitro szczeliny brzeżne
Page 260 and 261:
Wartości średnie oraz parametry r
Page 262 and 263:
skończonych. Dla potrzeb obliczeń
Page 264 and 265:
ozwój polimerów w oparciu o natur
Page 266 and 267:
poly(butylene succinate) modified b
Page 268 and 269:
influence of surface (nano)roughnes
Page 270 and 271:
combinatorial discovery approaches
show all

89-91 - Polskie Stowarzyszenie Biomateriałów

Create successful ePaper yourself

Delete template?

Save as template?