Hierarchically porous polymer derived ceramics: A promising platform for multidrug delivery systems

Vakifahmetoğlu, Çekdar; Zeydanlı, Damla; Özalp, Veli Cengiz; Borsa, Barış Ata; Sorarù, Gian Domenico

doi:10.1016/j.matdes.2017.11.047

Cited by 47 publications

(25 citation statements)

References 64 publications

(79 reference statements)

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“…In recent years there is an outburst of research in the synthesis and characterization of polymer derived ceramics (PDC) for various functional applications such as in energy storage, lithium-ion batteries, photocatalysis, thermoelectrics and drug delivery 1 – 6 . For many of these applications, porous PDCs are considered to be advantageous than their dense counterpart.…”

Section: Introductionmentioning

confidence: 99%

Graphene nanoplatelets as nanofillers in mesoporous silicon oxycarbide polymer derived ceramics

Sujith

Chauhan

Gangadhar

et al. 2018

Sci Rep

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Understanding the role of graphene in the thermal stability and pore morphology of polymer derived silicon oxycarbide is crucial for electrochemical energy storage and hydrogen storage applications. Here in this work, we report the synthesis of graphene nanoplatelets dispersed silicon oxycarbide ceramics by the polymer to ceramic synthesis route. Samples containing graphene and without graphene are subjected to different pyrolysis conditions and are characterized using FT-IR, XPS, Raman spectroscopy, XRD, FE-SEM, HR-TEM, and BET. The results show that the graphene dispersed in the ceramic has undergone structural distortions upon pyrolysis and resulted in the formation of nanoclusters of graphene and turbostratic graphene. The XRD results confirm that with the incorporation of higher wt.% of GNP there is resistance to crystallization even at an exceedingly high pyrolysis temperature. The pores are bimodal in nature with specific surface area ranging between 22 and 70 m2/g and are generated in-situ during the polymer to ceramic conversion. Our study confirms that upon adjusting the graphene content it is possible to tune the structure and pore morphology of the polymer derived ceramics as per the requirements.

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Section: Introductionmentioning

confidence: 99%

Graphene nanoplatelets as nanofillers in mesoporous silicon oxycarbide polymer derived ceramics

Sujith

Chauhan

Gangadhar

et al. 2018

Sci Rep

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“…The samples were prepared following the procedure given in the literature . All the starting chemicals were used as received: Hydrotalcite, (LDH: Mg 6 Al 2 (CO 3 )(OH) 16 ·4H 2 O), vinyl‐terminated polydimethylsiloxane (PDMS, Gelest, USA, CAS# 68083‐19‐2) a cyclic 2,4,6,8‐tetramethyl‐2,4,6,8‐ tetravinlycyclotetrasiloxane (TMTVS 97%, Alfa Aesar, USA, CAS# 2554‐06‐5), and polymethylhydrosiloxane (PHMS, CAS# 63148‐57‐2, Gelest,USA), Platinum ‐ divinyltetramethyldisiloxane complex, ~Pt 2% in xylene (Sigma‐Aldrich, USA, CAS# 68478‐92‐2).…”

Section: Methodsmentioning

confidence: 99%

“…The samples were prepared following the procedure given in the literature. 38,44 All the starting chemicals were used as received: Hydrotalcite, (LDH:…”

Section: Methodsmentioning

confidence: 99%

Polymer‐derived ceramic adsorbent for pollutant removal from water

2018

Self Cite

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Polymer‐derived ceramic components (SiOC, sample W) were produced from preceramic polymer mixture and a catalyst. After curing and pyrolysis, some of the samples etched by hydrofluoric acid to obtain carbonaceous SiOC (C‐rich SiOC, sample W‐HF). W and W‐HF were tested as an adsorbent material to remove both heavy‐metal ions (Cr (III), Pb (III), and Cd (II)) and cationic dyes (Methylene Blue (MB), Rhodamine B (RB), and Crystal Violet (CV)) from aqueous solutions. HF‐treated high surface area SiOC samples had quite high adsorption affinity for cationic dyes. According the Langmuir isotherm model the maximum dye uptake values were found to be around to 50 mg/g for sample W, whereas those for sample W‐HF ranged from 104 to 186 mg/g. Regeneration studies were conducted both by heat treatment and leaching, high recovery yields (always above 97%) of MB adsorption were obtained.

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“…The SiOC presented bimodal porous structure with pores of 6 and 100 nm size, resulted to a faster drug penetration than mesoporous active carbon. Vakifahmetoglu et al [152] fabricated hierarchically SiOC with micro-and meso-pores by organosilicon polymer-derived strategy as a multi drug release system (Fig. 6).…”

Section: Wwwspringercom/journal/40145mentioning

confidence: 99%

Organosilicon polymer-derived ceramics: An overview

Zhu

2019

J Adv Ceram

151

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Polymer-derived ceramics (PDCs) strategy shows a great deal of advantages for the fabrication of advanced ceramics. Organosilicon polymers facilitate the shaping process and different silicon-based ceramics with controllable components can be fabricated by modifying organosilicon polymers or adding fillers. It is worth noting that silicate ceramics can also be fabricated from organosilicon polymers by the introduction of active fillers, which could react with the produced silica during pyrolysis. The organosilicon polymer-derived ceramics show many unique properties, which have attracted many attentions in various fields. This review summarizes the typical organosilicon polymers and the processing of organosilicon polymers to fabricate silicon-based ceramics, especially highlights the three-dimensional (3D) printing technique for shaping the organosilicon polymerderived ceramics, which makes the possibility to fabricate silicon-based ceramics with complex structure. More importantly, the recent studies on fabricating typical non-oxide and silicate ceramics derived from organosilicon polymers and their biomedical applications are highlighted.

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Hierarchically porous polymer derived ceramics: A promising platform for multidrug delivery systems

Cited by 47 publications

References 64 publications

Graphene nanoplatelets as nanofillers in mesoporous silicon oxycarbide polymer derived ceramics

Graphene nanoplatelets as nanofillers in mesoporous silicon oxycarbide polymer derived ceramics

Polymer‐derived ceramic adsorbent for pollutant removal from water

Organosilicon polymer-derived ceramics: An overview

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