scholarly journals Enhancement of Neurite Outgrowth by Warming Biomaterial Ultrasound Treatment

2020 ◽  
Vol 21 (6) ◽  
pp. 2236 ◽  
Author(s):  
Jung-Chih Chen ◽  
Chao-Ming Su ◽  
Gin-Shin Chen ◽  
Chin-Chun Lai ◽  
Ching-Yun Chen ◽  
...  
Keyword(s):  
Neurite Outgrowth ◽  
Ultrasonic Treatment ◽  
Treatment Time ◽  
Fe3o4 Nanoparticle ◽  
Neuronal Function ◽  
Acoustic Attenuation ◽  
Working Temperature ◽  
Time Treatment ◽  
Long Time ◽  
Enhance Neurite Outgrowth

Ultrasound is a method for enhancing neurite outgrowth because of its thermal effect. In order to reach the working temperature to enhance neurite outgrowth, long-time treatment by ultrasound is necessary, while acknowledging that the treatment poses a high risk of damaging nerve cells. To overcome this problem, we developed a method that shortens the ultrasonic treatment time with a warming biomaterial. In this study, we used Fe3O4 nanoparticle-embedded polycaprolactone (PCL) as a sonosensitized biomaterial, which has an excellent heating rate due to its high acoustic attenuation. With this material, the ultrasonic treatment time for enhancing neurite outgrowth could be effectively shortened. Ultrasonic treatment could also increase neuronal function combined with the warming biomaterial, with more promoter neuronal function than only ultrasound. Moreover, the risk of overexposure can be avoided by the use of the warming biomaterial by reducing the ultrasonic treatment time, providing better effectiveness.

scholarly journals Development of a Nephrotic Syndrome in a Patient with Gastrointestinal Stromal Tumor during a Long-Time Treatment with Sunitinib

2012 ◽  
Vol 5 (3) ◽  
pp. 651-656 ◽  
Author(s):  
Maria Caterina Pallotti ◽  
Maria Abbondanza Pantaleo ◽  
Margherita Nannini ◽  
Francesca Centofanti ◽  
Benedetta Fabbrizio ◽  
...  
Keyword(s):  
Nephrotic Syndrome ◽  
Gastrointestinal Stromal Tumor ◽  
Stromal Tumor ◽  
Time Treatment ◽  
Long Time

Influence of the Initial Nitrogen Concentration on Eliminating Nitrogen Load of Europhia Sediment Capping with Active Barrier System (ABS)

2011 ◽  
Vol 374-377 ◽  
pp. 498-503
Author(s):  
Jin Lan Xu ◽  
Lei Wang ◽  
Jun Chen Kang ◽  
Ting Lin Huang ◽  
Yu Hua Dong
Keyword(s):  
Total Nitrogen ◽  
Nitrate Nitrogen ◽  
Nitrogen Concentration ◽  
Ammonia Nitrogen ◽  
Overlying Water ◽  
Sediment Capping ◽  
Time Treatment ◽  
Total Nitrogen Concentration ◽  
Long Time ◽  
Active Barrier

Abstract: Active barrier system (ABS) capping zeolite with large surface area and strong adsorption ability is an effective way to control eutrophication of lake since it can remove ammonia in the lake released by sediment. Influence of the initial nitrogen concentration on eliminating nitrogen load of europhia sediment capping with active barrier system (ABS) were studied through an investigation of the repairment results of serious pollution period (total nitrogen concentration up to 25.33 mg/L), moderate pollution period (14.39 mg/L) and the slight pollution period (3.47 mg/L) of the ancient Canal of Yangzhou. The results showed that: (1) zeolite F1 inhibition effect is stronger than zeolite F2. More TN were removed as the initial TN concentration increased and longer rapid inhibit period were presented with the increased initial TN concentration. (2) The ammonia nitrogen in sediment could be rapidly released into the overlying water, and with lower initial TN concentration in source water, more ammonia would be released from the sediment. Long time treatment was necessary to inhibit the release of ammonia completely if the water showed a high initial TN concentration. (3) After covering zeolite, the total nitrogen in the overlying water were removed mainly through nitrification and denitrification. At the initial TN concentration of 3.47 mg/L, 14.39 mg/L, 25.88 mg/L, 61%, 45% and 52% of TN were removed by the conversion of ammonia to nitrogen gas, however, others left in water as nitrate nitrogen and nitrite residues, and 90% was nitrate nitrogen.

scholarly journals Enhancement of flaky graphite cleaning by ultrasonic treatment

2019 ◽  
Vol 6 (12) ◽  
pp. 191160 ◽  
Author(s):  
Wenze Kang ◽  
Huijian Li
Keyword(s):  
Carbon Content ◽  
Ultrasonic Treatment ◽  
Treatment Time ◽  
Treatment Technique ◽  
Particle Sizes ◽  
Cleaning Process ◽  
Flotation Concentrate ◽  
Metal Impurities ◽  
Pre Treatment ◽  
Ultrasound Power

In this study, the aim is to simplify the graphite cleaning process. In order to achieve flotation for graphite effectively, ultrasonic treatment was used as a pre-treatment technique. Flotation tests were conducted using different ultrasound power and ultrasonic treatment time. The influences of ultrasonic treatment on particle sizes, morphologies, wettability, the content of surface elements and on the flotation effect of flaky graphite were investigated. The results of ultrasonic treatment for graphite flotation were compared with the results of conventional flotation. The results showed that ultrasonic treatment not only changed the size of flaky graphite, but also eliminated impurities on the graphite surface. Additionally, the ultrasonic treatment improved the hydrophobicity of graphite. It was observed that ultrasound can remove not only silicate impurities but also most other metal impurities. The yield, carbon content and recovery of flotation concentrate were 91.46%, 95.17% and 96.12% after ultrasonic treatment for 4 min with ultrasound power 1600 W, which were 5.83%, 2.86% and 8.84% higher than that of conventional flotation, respectively. The graphite after ultrasonic treatment was conducted only one times flotation, the carbon content in concentrate products had reached 95%. This study indicates that intensifying graphite flotation by ultrasonic treatment can shorten the graphite cleaning process.

scholarly journals Biomimetic surface delivery of NGF and BDNF to enhance neurite outgrowth

2020 ◽  
Vol 117 (10) ◽  
pp. 3124-3135
Author(s):  
Ana M. Sandoval‐Castellanos ◽  
Frederik Claeyssens ◽  
John W. Haycock
Keyword(s):  
Neurite Outgrowth ◽  
Biomimetic Surface ◽  
Enhance Neurite Outgrowth

scholarly journals PENURUNAN BOD, COD, DAN ZAT WARNA LIMBAH PENCELUPAN DENGAN FITOEKSTRAKSI MENGGUNAKAN KIAMBANG (Salvinia natans)

1970 ◽  
Vol 16 (1) ◽  
Author(s):  
I G.A. Kunti Sri Panca Dewi ◽  
Putu Suarya ◽  
Iryanti E. Suprihatin ◽  
Wahyu Dwijani S.
Keyword(s):  
Methylene Blue ◽  
Growth Medium ◽  
Congo Red ◽  
Treatment Technique ◽  
Time Treatment ◽  
Textile Dyeing ◽  
Before And After ◽  
Long Time ◽  
Salvinia Natans

This research was conducted to study the potential of the plants ‘useless’ as kiambang(Salvinia natans) which are easy to find, and not as valuable as textile dyeing waste handlingmedia. Treatment technique used is to replace the growth medium with the waste in questionin this case of waste taken in the dyeing industry. The concentration of methylene blueinwaste of  dye, and congo red, before and after treatment, determined by spectrophotometry.Fluid absorbance was measured at a wavelength of 664 nm for methylene blue and 496 nmfor congo red. Long time treatment used is 6, 12, 18, 24, 30, 36, and 48 hours. These resultsindicate that kiambang (Salvinia natans) is useful to lower BOD and COD of waste dyeing,although its ability to reduce the content of the dye congo red and blue methyl insignificant.This may be caused by too concentrated the dyeing waste.

scholarly journals Combination Effects of Curcumin and Aqueous Extract of Lignosus rhinocerotis Mycelium on Neurite Outgrowth Stimulation Activity in PC-12 Cells

2013 ◽  
Vol 8 (6) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Priscilla A. John ◽  
Kah - Hui Wong ◽  
Murali Naidu ◽  
Vikineswary Sabaratnam ◽  
Pamela David
Keyword(s):  
Small Molecules ◽  
Neurite Outgrowth ◽  
Aqueous Extract ◽  
Neurotrophic Factors ◽  
Neuronal Function ◽  
Pc 12 Cells ◽  
Neurite Extension ◽  
High Concentrations ◽  
Lignosus Rhinocerotis ◽  
Stimulation Of

Neurotrophic factors are necessary for neuronal navigation to form viable neuronal networks. These factors are high molecular weight polypeptides that cannot cross the blood brain-barrier. Therefore, small molecules from mushrooms and plants are utilized to maintain neuronal function or up-regulate neurotrophic factors. The present study investigated whether a combination of Lignosus rhinocerotis mycelium aqueous extract and curcumin was more effective than L. rhinocerotis mycelium or curcumin alone in the stimulation of neurite outgrowth of PC-12 cells. The maximum neurite extension for L. rhinocerotis and curcumin was at 21.1% at 20 μg/mL and 29.5% at 10 μg/mL, respectively. Combining 20 μg/mL of L. rhinocerotis with one μg/mL curcumin gave 27.2% neurite extension. This combination was preferred because high concentrations of curcumin were toxic to cells. In the combination, 20 μg/mL of L. rhinocerotis enhanced neurite outgrowth activity at a lower dosage of curcumin at one μg/mL, and produced a comparable percentage of neurite outgrowth stimulation activity to L. rhinocerotis and curcumin alone in PC-12 cells.

Effects of Process Parameters on the Particle Size Distribution of Graphene Oxide Aqueous Dispersion

2013 ◽  
Vol 750-752 ◽  
pp. 1113-1116 ◽  
Author(s):  
Xue Bing Hu ◽  
Yun Yu ◽  
Jian Er Zhou ◽  
Li Xin Song
Keyword(s):  
Particle Size ◽  
Graphene Oxide ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Ultrasonic Treatment ◽  
Treatment Time ◽  
Aqueous Dispersion ◽  
Centrifugal Separation ◽  
Effective Particle Size ◽  
Effective Particle

During graphene oxide separation process, the effects of the process parameters such as centrifugal separation time and ultrasonic treatment time on the particle size distribution of graphene oxide aqueous dispersion were studied. The results show graphene oxide has the narrower particle size distribution and the smaller nominal effective particle size with increasing the centrifugal separation time from 20 min to 160 min. And there is a critical time in the ultrasonic treatment to obtain the narrower particle size distribution and smaller nominal effective particle size of graphene oxide. Graphene oxide has the narrower particle size distribution and the smaller nominal effective particle size when the ultrasonic treatment time is 4 h.

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