Size-controllable synthesis of dendritic porous silica as reinforcing fillers for dental composites

The service performance of current dental composite materials, such as anterior and posterior restoratives and/or veneer cements, needs to be improved. As part of a comprehensive effort to find ways to improve such materials, we have launched a broad spectrum study of the physicochemical and mechanical properties of photopolymerizable or visible light cured (VLC) dental composites. The commercially available VLC materials being studied are shown in Table 1. A generic or neat resin VLC system is also being characterized by SEM and TEM, to more fully understand formulation variables and their effects on properties.At a recent dental research meeting, we reported on the differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) characterization of the materials in Table 1. It was shown by DSC and DMA that the materials are substantially undercured by commonly used VLC techniques. Post curing in an oral cavity or a dry environment at 37 to 50°C for 7 or more hours substantially enhances the cure of the materials.

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SiO2 Entrapment of Animal Cells for Hybrid Bioartificial Organs

MRS Proceedings ◽

10.1557/proc-628-cc10.1 ◽

2000 ◽

Vol 628 ◽

Cited By ~ 6

Author(s):

Giovanni Carturan ◽

Renzo Dal Monte ◽

Maurizio Muraca

Keyword(s):

Gas Phase ◽

Mechanical Stability ◽

Porous Silica ◽

Collagen Matrix ◽

Homogeneous Layer ◽

Animal Cells ◽

Bioartificial Organs ◽

Liver And Pancreas ◽

Encapsulation Method ◽

Metabolic Activities

ABSTRACTSi-alkoxides in gas phase are reactive towards the surface of animal cells, depositing a homogeneous layer of porous silica. This encapsulation method preserves cell viability and does not alter the hindrance of the biological load.In the prospective use for the design of a hybrid bioartificial liver, hepatocytes in a collagen matrix can be entrapped by the siliceous deposit which provides definite mechanical stability to the collagen matrix and molecular cutoff vs. high molecular weight proteins, including immunoglobulins. The functionality of the encapsulated cell load is maintained for the expressions of typical liver and pancreas metabolic activities.

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•Reinforcing fillers for polymer composites made from nonwoven organic materials

All the materials Encyclopedic Reference Book ◽

10.31044/1994-6260-2018-0-10-9-13 ◽

2018 ◽

Vol 0 (10) ◽

pp. 9-13

Author(s):

A. N. Marycheva ◽

◽

T. A. Guzeva ◽

P. M. Pye ◽

L. Kh. Tun ◽

...

Keyword(s):

Polymer Composites ◽

Organic Materials ◽

Reinforcing Fillers

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Preparation and Thermal Stability of Porous Silica-based Monoliths

Journal of Inorganic Materials ◽

10.3724/sp.j.1077.2011.00949 ◽

2011 ◽

Vol 26 (9) ◽

pp. 949-954

Author(s):

Li-Jie ZHANG ◽

Jing-Hua GU ◽

Hong-Ying YAO ◽

Yue ZHANG

Keyword(s):

Thermal Stability ◽

Porous Silica ◽

Thermal Stability Of

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Shape controllable synthesis of NdFeO3micro single crystals by a hydrothermal route

CrystEngComm ◽

10.1039/c3ce41434e ◽

2014 ◽

Vol 16 (5) ◽

pp. 858-862 ◽

Cited By ~ 24

Author(s):

You Wang ◽

Xuecheng Yan ◽

Jun Chen ◽

Jinxia Deng ◽

Ranbo Yu ◽

...

Keyword(s):

Single Crystals ◽

Controllable Synthesis ◽

Hydrothermal Route

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Morphology and composition controllable synthesis of Mg–Al–CO3 hydrotalcites by tuning the synthesis pH and the CO2 capture capacity

Applied Clay Science ◽

10.1016/j.clay.2011.07.024 ◽

2012 ◽

Vol 55 ◽

pp. 18-26 ◽

Cited By ~ 128

Author(s):

Qiang Wang ◽

Hui Huang Tay ◽

Zhanhu Guo ◽

Luwei Chen ◽

Yan Liu ◽

...

Keyword(s):

Co2 Capture ◽

Controllable Synthesis ◽

Co2 Capture Capacity ◽

Capture Capacity

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Wine By-Products as Raw Materials for the Production of Biopolymers and of Natural Reinforcing Fillers: A Critical Review

Polymers ◽

10.3390/polym13030381 ◽

2021 ◽

Vol 13 (3) ◽

pp. 381

Author(s):

Alessandro Nanni ◽

Mariafederica Parisi ◽

Martino Colonna

Keyword(s):

Critical Review ◽

Raw Materials ◽

Green Revolution ◽

Building Blocks ◽

Poly Lactic Acid ◽

Butylene Succinate ◽

Reinforcing Fillers ◽

Plastic Industry ◽

Review Reports ◽

By Products

The plastic industry is today facing a green revolution; however, biopolymers, produced in low amounts, expensive, and food competitive do not represent an efficient solution. The use of wine waste as second-generation feedstock for the synthesis of polymer building blocks or as reinforcing fillers could represent a solution to reduce biopolymer costs and to boost the biopolymer presence in the market. The present critical review reports the state of the art of the scientific studies concerning the use of wine by-products as substrate for the synthesis of polymer building blocks and as reinforcing fillers for polymers. The review has been mainly focused on the most used bio-based and biodegradable polymers present in the market (i.e., poly(lactic acid), poly(butylene succinate), and poly(hydroxyalkanoates)). The results present in the literature have been reviewed and elaborated in order to suggest new possibilities of development based on the chemical and physical characteristics of wine by-products.

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