Temat: hybrydy organiczno-nieorganiczne - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Degradability of organic-inorganic cellulose acetate butyrate hybrids in sea water
Autorzy:: Wojciechowska, P.
Heimowska, A.
Foltynowicz, Z.
Rutkowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/779260.pdf
Data publikacji:: 2011
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: degradacja
octanomaślan celulozy
hybrydy organiczno-nieorganiczne
woda morska
degradation
cellulose acetate butyrate
organic-inorganic hybrids
sea water
Opis:: Environmental degradability of novel organic-inorganic cellulose acetate butyrate hybrids obtained via solgel process was investigated. The degradation of hybrids was studied under marine exposure conditions in the Baltic Sea for a period of 25 weeks. The influence of characteristic parameters of sea water on the degree of degradation monitored by changes of weight and optical microscopy was discussed. The degraded samples were also examined by FT-IR spectroscopy. It has been established that the CAB/silica hybrids are more susceptible to biodegradation in sea water environment than pure cellulose acetate butyrate.
Źródło:: Polish Journal of Chemical Technology; 2011, 13, 2; 29-34
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Bioszkła i organiczno-nieorganiczne kompozyty dla inżynierii tkankowej kości
Bioglasses and organic-inorganic composites for bone tissue engineering
Autorzy:: John, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/172492.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Chemiczne
Tematy:: biomateriały
bioszkło
organiczno-nieorganiczne hybrydy
hydroksyapatyt
implanty kości
in vitro
biomaterials
bioglasses
organic-inorganic hybrid
hydroxyapatite
bone implants
Opis:: The most demanded biomaterials for bone tissue engineering could be classified in two main sol-gel derived groups: bioglasses and organic-inorganic composites. The first of these include bioactive ceramics such as calcium phosphates (Tab. 2) [1], glasses and glass ceramics [2], and so-called inert ceramics (Tab. 1) such as Al2O3, zirconium and titanium dioxide, and carbon-based materials [3, 4]. Second-group of compounds constitute bioactive organic-inorganic hybrids, generally based on organic matrix and various inorganic dopants. Biomaterials in contact with human plasma and bone stem cells form, on their surface, hydroxyapatite Ca10(PO4)6(OH)2 (HAp) and its derivatives (Tab. 2). HAp-layer initiates bone growth and reconstruction of treated fragment (Fig. 2). These materials, due to the high degree of biocompability are considered as the most valuable compounds for bone surgery [5]. Extremely rapid development of biomaterials used in medicine caused the production of implants with different properties (Scheme 1). The real revolution and technological progress have brought biomimetic composites that mimic naturally occurring solutions in living organisms. The role of such implants is not only replacing the damaged parts of body, but – due to the appropriate morphology and composition – stimulating the growth of living cells (Fig. 3) and final bone regeneration. This article is devoted to this type of biomaterials proposed for bone tissue engineering.
Źródło:: Wiadomości Chemiczne; 2012, 66, 1-2; 21-39
0043-5104
2300-0295
Pojawia się w:: Wiadomości Chemiczne
Dostawca treści:: Biblioteka Nauki

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