scholarly journals Electrospun silk fibroin/TiO2 mats. Preparation, characterization and efficiency for the photocatalytic solar treatment of pesticide polluted water

RSC Advances ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 1917-1924 ◽  
Author(s):  
Salvador Aznar-Cervantes ◽  
Marina Aliste ◽  
Isabel Garrido ◽  
María J. Yañez-Gascón ◽  
Nuria Vela ◽  
...  
Keyword(s):  
Silk Fibroin ◽  
Photocatalytic Properties ◽  
Polluted Water ◽  
Electrospinning Technique ◽  
Solar Treatment

The photocatalytic properties of silk fibroin (SF) incorporating TiO2 nanoparticles using an electrospinning technique were examined.

scholarly journals Adsorption/desorption and biofunctional properties of oleuropein loaded on different types of silk fibroin matrices

2017 ◽  
Vol 36 (1) ◽  
Author(s):  
Oguz Bayraktar ◽  
Ali Bora Balta ◽  
Guldemet Basal Bayraktar
Keyword(s):  
Silk Fibroin ◽  
Antibacterial Properties ◽  
Average Diameter ◽  
Electrospinning Technique ◽  
Collector Plate ◽  
Regenerated Silk Fibroin ◽  
Different Types ◽  
Healing Property ◽  
Silk Fibroin Nanofibers ◽  
Adsorption Desorption

The objective of this study was to investigate the adsorption/desorption behavior of oleuropein on different types of silk fibroin matrices including silk fibroin microfibers (MF), regenerated silk fibroin (RSF), and silk fibroin nanofibers (NF). Nanofibers with an average diameter of ranging between 24 and 326 nm were successfully prepared using the electrospinning technique. The effects of the silk fibroin concentration, the voltage applied and the distance between needle tip and collector plate on the morphology of the NF were investigated. The adsorption capacities of MF, RSF and NF were determined as 104.92, 163.07 and 228.34 mg oleuropein per gram of material, respectively. The percentage of initially adsorbed oleuropein that was desorbed was 86.08, 91.29 and 96.67% for MF, RSF and NF, respectively.NF and RSF discs loaded with oleuropein were subjected to disc diffusion assays to determine their antibacterial activity against test microorganisms Staphylococcus epidermidis (Gram +) and Escherichia coli (Gram – ). The results showed that both biomaterials possessed antibacterial properties after loading with oleuropein. Wound scratch assays using oleuropein released from NF revealed an enhancement of cell migration, indicating a wound healing property of the material.In conclusion, the NF can be utilized as a biofunctional polymeric material with better performance for the adsorption and desorption of oleuropein compared with MF and RSF.

Silk fibroin linked Zn/Cd-doped SnO2nanoparticles to purify the organically polluted water

2018 ◽  
Vol 5 (2) ◽  
pp. 024004 ◽  
Author(s):  
K Bhuvaneswari ◽  
R Divya Bharathi ◽  
T Pazhanivel
Keyword(s):  
Silk Fibroin ◽  
Polluted Water

scholarly journals Fabrication of aqueous-based dual drug loaded silk fibroin electrospun nanofibers embedded with curcumin-loaded RSF nanospheres for drugs controlled release

RSC Advances ◽  
2017 ◽  
Vol 7 (89) ◽  
pp. 56550-56558 ◽  
Author(s):  
Huijun Li ◽  
Jingxin Zhu ◽  
Song Chen ◽  
Lan Jia ◽  
Yanlong Ma
Keyword(s):  
Controlled Release ◽  
Silk Fibroin ◽  
Electrospun Nanofibers ◽  
Electrospinning Technique ◽  
Regenerated Silk Fibroin ◽  
Dual Drug

This paper presents a new nanofabrication method for dual drug loaded regenerated silk fibroin (RSF) nanofibers, based on a simple, colloid-electrospinning technique.

Photocatalytic properties of Fe2O3-modified rutile TiO2 nanofibers formed by electrospinning technique

2016 ◽  
Vol 172 ◽  
pp. 62-68 ◽  
Author(s):  
Faheem A. Sheikh ◽  
Richard Appiah-Ntiamoah ◽  
Mohammad Afzal Zargar ◽  
Jeyasselan Chandradass ◽  
Wook-Jin Chung ◽  
...  
Keyword(s):  
Photocatalytic Properties ◽  
Electrospinning Technique ◽  
Tio2 Nanofibers ◽  
Rutile Tio2

scholarly journals Electrospun Hydrophobic Polyaniline/Silk Fibroin Electrochromic Nanofibers with Low Electrical Resistance

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2102 ◽  
Author(s):  
Chun-Yu Chen ◽  
Szu Ying Huang ◽  
Hung-Yu Wan ◽  
Yi-Ting Chen ◽  
Sheng-Ka Yu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Silk Fibroin ◽  
Electrical Resistance ◽  
Composite Nanofibers ◽  
Academic Research ◽  
Electronic Textiles ◽  
Electrospinning Technique ◽  
Conductive Polyaniline ◽  
Advanced Applications

Electronic textiles (E-textiles) have been an area of intense industrial and academic research for years due to their advanced applications. Thus, the goal of this study was to develop highly conductive silk fibroin electrochromic nanofibers for use in E-textiles. The silk nanofibers were prepared by an electrospinning technique, and the conductive polyaniline (PANI) was added to impart the electrical conductivity and electroactive property to the resultant electrospun silk composite nanofibers. The experimental results showed that tuning the electrospinning procedure could control the morphology of the composite nanofibers, thus altering their mechanical properties and surface wettability. Furthermore, the developed PANI/silk composite fibers possess electroactive and electrochromic properties, such as adjusting the applied voltage. The developed strategy demonstrated the feasibility of incorporating not only electrical functionality but also electroactivity into sustainable silk nanofibers using electrospinning technique.

Pilot-plant evaluation of TiO2 and TiO2-based hybrid photocatalysts for solar treatment of polluted water

2016 ◽  
Vol 320 ◽  
pp. 469-478 ◽  
Author(s):  
Luminita Andronic ◽  
Luminita Isac ◽  
Sara Miralles-Cuevas ◽  
Maria Visa ◽  
Isabel Oller ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Polluted Water ◽  
Solar Treatment ◽  
Plant Evaluation

scholarly journals Photocatalytic Performance of Electrospun Silk Fibroin/ZnO Mats to Remove Pesticide Residues from Water under Natural Sunlight

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 110 ◽  
Author(s):  
Isabel Garrido ◽  
Salvador Aznar-Cervantes ◽  
Marina Aliste ◽  
María J. Yáñez-Gascón ◽  
Nuria Vela ◽  
...  
Keyword(s):  
Silk Fibroin ◽  
Pesticide Residues ◽  
Degradation Kinetics ◽  
Catalyst Loading ◽  
Similar Amount ◽  
Experimental Conditions ◽  
Electrospinning Technique ◽  
Degradation Rates ◽  
Kinetics Of ◽  
Environmentally Friendly Approach

We have evaluated the efficiency of silk fibroin (SF) coated with ZnO nanoparticles in the photocatalytic disappearance of one acaricide (etoxazole) and three fungicides (difenoconazole, myclobutanil and penconazole) in water exposed to sunlight irradiation. Electrospun SF/ZnO mats were successfully synthesized by electrospinning technique and characterized by XRD, FE-SEM, XPS, XDS, FTIR, and BET. The influence of catalyst loading on the degradation kinetics of the different pesticides was examined in order to gain knowledge of maximum degradation efficiency. A significant increment in degradation rates was observed with the addition of ZnO. SF mats with 25 mg of ZnO were finally selected since no significant differences (p < 0.05) were detected when the loading was enlarged from 25 to 50 mg for the majority of the compounds. In the experimental conditions, the half-lives ranged from 33 min to 93 min for etoxazole and myclobutanil, respectively. The comparison of SF materials coated with similar amount of TiO2 and ZnO showed that the later was slightly more efficient to remove pesticide residues. Hence, the use of electrospun SF/ZnO nanostructures would provide an environmentally friendly approach with photocatalytic activity to be applied in the reclamation of water polluted by pesticides.

Chemical Crosslinking of Silk Fibroin, Chitosan and Gelatin Blend Nanofiber Mats

2016 ◽  
Vol 695 ◽  
pp. 273-277 ◽  
Author(s):  
Pornpen Siridamrong ◽  
Penchom Phrotjanatharee ◽  
Niyom Thamronganaskul
Keyword(s):  
Formic Acid ◽  
Silk Fibroin ◽  
Room Temperature ◽  
Chemical Crosslinking ◽  
Electrospinning Technique ◽  
Blend Composition ◽  
Nanofiber Mats ◽  
Crosslinking Agents

Silk fibroin (SF), chitosan (C), and gelatin (G) blend composition in formic acid have been manufactured by using electrospinning technique in our previous work. The SF: G: C at weight ratios of 10: 20: 1 and 20: 10: 1 (%wt: %wt: ml) were used for crosslinking testing. Glutaraldehyde (GA), and 1-ethyl-3-(3-dimethylaminopropyl) cabodiimide (EDC) / N-hydroxy succcinimide (NHS) (EDC/NHS) were chose as crosslinking agents. All samples were treated in such agents by fumigation for 72 hours followed by dipping for 10 minutes. Then those samples were washed in distill water for 3 times (1 time per 10 minutes) and dried in desiccator at room temperature. GA caused immediately shrink in both nanofiber mats and became clearly visible yellowish. However, a little shrinkage occurred after dipping in EDC/NHS. It possibly concluded that the EDC / NHS appropriated for SF: G: C blend nanofiber mats.

Facile fabrication hybrids of TiO2@ZnO tubes with enhanced photocatalytic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (63) ◽  
pp. 58452-58457 ◽  
Author(s):  
Minghui Wang ◽  
Liying Cui ◽  
Songyang Li ◽  
Zhuoxin Li ◽  
Tianliang Ma ◽  
...  
Keyword(s):  
Photocatalytic Properties ◽  
Electrospinning Technique ◽  
Facile Fabrication

Hollow nano-tubes of TiO2 and TiO2@ZnO hybrids were produced by a facile and mild approach combining an electrospinning technique and soaking method, followed by calcination.

scholarly journals Preparation of PVDF/FMBO composite electrospun nanofiber for effective arsenate removal from water

RSC Advances ◽  
2020 ◽  
Vol 10 (41) ◽  
pp. 24653-24662 ◽  
Author(s):  
Parisa Aliahmadipoor ◽  
Dadkhoda Ghazanfari ◽  
Rasoul Jamshidi Gohari ◽  
Mohammad Reza Akhgar
Keyword(s):  
Electrospun Nanofibers ◽  
Binary Oxide ◽  
Polluted Water ◽  
Oxide Nanoparticles ◽  
Electrospun Nanofiber ◽  
Electrospinning Technique ◽  
Adsorptive Removal

In this study, novel electrospun nanofibers composed of organic polyvinylidine fluoride and inorganic Fe–Mn binary oxide nanoparticles were fabricated using an electrospinning technique for adsorptive removal of As(v) from polluted water.

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