Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 10

Year

2022 1

2019 3

2018 1

2017 1

2013 1

2012 1

2011 1

2009 1

open ︾

Keywords

5-hydroxymethylfurfural 1

Elaeagnus angustifolia 1

Antibacterial activity 1

Dental pieces 1

Dental resin composites 1

Hybrid calibration 1

Laser scanning 1

Mechanical properties 1

Multifunctional cluster fillers 1

Neural network 1

Radiopacity 1

TEMPO 1

Three-fluid nozzle spray drying 1

antibacterial 1

antibacterial components 1

antiproliferative activity 1

bamboo 1

biorefinery 1

breast cancer 1

cellulose nanofibrils 1

open ︾

Search scope:

排序： Display mode:

Dental stem cell and dental tissue regeneration

Qiming Zhai, Zhiwei Dong, Wei Wang, Bei Li, Yan Jin

Frontiers of Medicine 2019, Volume 13, Issue 2, Pages 152-159 doi: 10.1007/s11684-018-0628-x

Abstract: the development of tooth germ tissue located in the jaw and consist of the enamel, dentin, cementum, pulpNumerous types of stem cells have been isolated from dental tissue, such as dental pulp stem cells (DPSCs), stem cells isolated from human pulp of exfoliated deciduous teeth (SHED), periodontal ligament stemcells (PDLSCs), stem cells from apical papilla (SCAPs), and dental follicle cells (DFCs).

Keywords： stem cells pulp regeneration periodontal regeneration

HTML PDF Collect

Self-etching adhesives: possible new pulp capping agents to vital pulp therapy

Chun CUI, Xiu-Neng ZHOU, Wei-Min CHEN

Frontiers of Medicine 2011, Volume 5, Issue 1, Pages 77-79 doi: 10.1007/s11684-010-0104-8

Abstract:

Pulp capping is one of the solving for keeping vital pulp in the case of dentin caries, reversiblepulpitis or traumatic pulp exposure.of pulp capping.Traditional pulp capping agent, calcium hydroxide, may not prevent microleakage.that using the self-etching adhesive system containing the antibacterial agent, such as MDPB, to the dental

Keywords： dental pulp pulp capping self-etching adhesives antibacterial components

HTML PDF Collect

Effect of incorporating Elaeagnus angustifolia extract in PCL-PEG-PCL nanofibers for bone tissue engineering

Vahideh R. Hokmabad, Soodabeh Davaran, Marziyeh Aghazadeh, Effat Alizadeh, Roya Salehi, Ali Ramazani

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1, Pages 108-119 doi: 10.1007/s11705-018-1742-7

Abstract: The response of human cells to the PCL-PEG-PCL/EA nanofibers was evaluated using human dental pulp stem

Keywords： Elaeagnus angustifolia scaffold electrospinning human dental pulp stem cell tissue engineering

HTML PDF Collect

Production of pectic extracts from sugar beet pulp with antiproliferative activity on a breast cancer

Jacqueline CONCHA, Caroline WEINSTEIN, María Elvira Zú?IGA

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4, Pages 482-489 doi: 10.1007/s11705-013-1342-5

Abstract: In the last years, sugar beet pectins have been the subject of several investigations involving extraction methodologies, chemical composition and functional properties. The structure of pectins, which depends on the extraction method, is decisive in their capacity to induce apoptosis on several cancer cell lines like colon, prostate and breast. In this work, sugar beet pectin extraction was performed in the following steps: lipid extraction with hexane, removal of soluble complex carbohydrates and proteins, and enzymatic treatment with amyloglucosidase, protease, and pectinase. The enzymatic treatment was carried out with Rohapect DA6L under the following conditions: 50°C, pH 4.0, 2% enzyme/substrate (E/S) ratio, 15 h, and a solid to liquid ratio of 1 ∶ 10. The pectic extract showed a degree of polymerization (DP) profile of 55.8% with DP≥7; 4.9% with DP6; 5.8% between DP2 and DP6 ; 4.7% with DP2; and 28.8% with DP1. The pectic extract was examined for its antiproliferative activity on the MCF-7 breast cancer cell line. At a concentration range of 12.5–25 mg/mL the pectic extract killed 80.6% of the cells, exhibiting a higher antiproliferative activity than 4-hydroxytamoxifen (4-OHT), a classical anticancer drug, which killed 56.5% of the cells.

Keywords： pectic extracts antiproliferative activity breast cancer enzymatic treatment

HTML PDF Collect

Synthesis of hydroxymethylfurfural and furfural from hardwood and softwood pulp using ferric sulphate

Agneev Mukherjee, Guillermo Portillo-Perez, Marie-Josée Dumont

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3, Pages 531-542 doi: 10.1007/s11705-019-1814-3

Abstract: It was found that for hardwood pulp, the use of ferric sulphate alone gave a maximum HMF yield of 31.6Softwood pulp was harder to depolymerise than hardwood, with a yield of 28.7% obtained using ferric sulphate

Keywords： 5-hydroxymethylfurfural hardwood softwood ferric sulphate biorefinery

HTML PDF Collect

Preparation and characteristics of TEMPO-oxidized cellulose nanofibrils from bamboo pulp and their oxygen-barrier

Bozhen Wu, Biyao Geng, Yufei Chen, Hongzhi Liu, Guangyao Li, Qiang Wu

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 554-563 doi: 10.1007/s11705-017-1673-8

Abstract: Bleached bamboo kraft pulp was pretreated by 2,2,6,6-tetramethylpiperidine-1-oxy radical (TEMPO)-mediatedAnd the presence of hemicellulose in the pulp is favorable to TEMPO oxidization.After the oxidization, the native cellulose I crystalline structure and crystal size of bamboo pulp areTherefore, inexpensive and abundant bamboo pulp would be a promising starting material to isolate cellulose

Keywords： bamboo TEMPO cellulose nanofibrils oxygen barrier

HTML PDF Collect

Development and application of surfactants in pulp andpaper making industry

Zhao Chuanshan,Tang Jiebin,Chen Kefu,Yu Dongmei,Wu Chaojun

Strategic Study of CAE 2009, Volume 11, Issue 4, Pages 17-20

Abstract:

According to the characteristics of pulp and paper making technics, thesurfactants used in pulp and paper making industry were introduced in detail.The effect and mechanism of the surfactants used at pulp and paper making technology were discussed.At last, the development of the surfactants in pulp and paper making industry was put forward.

Keywords： surfactants pulp making paper making mechanism

HTML PDF Collect

A Dual-Platform Laser Scanner for 3D Reconstruction of Dental Pieces Article

Shuming Yang, Xinyu Shi, Guofeng Zhang, Changshuo Lv

Engineering 2018, Volume 4, Issue 6, Pages 796-805 doi: 10.1016/j.eng.2018.10.005

Abstract:

This paper presents a dual-platform scanner for dental reconstruction based on a three-dimensionalexperiments verified the hybrid calibration method and the scanner application for the measurement of dentalTwo typical dental pieces were measured, and the experimental results demonstrated the validity of theThis method is effective for the 3D reconstruction of dental pieces, as well as that of objects with

Keywords： Laser scanning Hybrid calibration Neural network Dental pieces

HTML PDF Collect

The application of nanotechnology in the improvement of dental composite resins

Xia Yang,Xie Haifeng,Zhang Feimin and Gu Ning

Strategic Study of CAE 2012, Volume 14, Issue 3, Pages 76-82

Abstract:

In this paper, nanotechnology for the improvement of dental compositethe use of nanotechnology and nano materials can be an effective method to improve the performance of dentalAt last, the paper also gives a future perspective of dental composite resins.

Keywords： nano technology composite resin antibacterial polymerization shrinkage mechanical properties

HTML PDF Collect

Constructing Multifunctional Cluster Fillers Using a Three-Fluid Nozzle Spray Drying Technique for Dental Article

Dan-Lei Yang, Dan Wang, Hao Niu, Rui-Li Wang, Mei Liu, Fei-Min Zhang, Jie-Xin Wang, Mei-Fang Zhu

Engineering 2022, Volume 8, Issue 1, Pages 138-147 doi: 10.1016/j.eng.2021.08.001

Abstract:

Multifunctional fillers are greatly required for dental resin composites (DRCs).high-performance complex nanoparticle clusters (CNCs) consisting of different functional nanofillers for dental

Keywords： cluster fillers Three-fluid nozzle spray drying Mechanical properties Antibacterial activity Radiopacity Dental