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Gimbun, Jolius
- Needleless Electrospinning Technology – An Entrepreneurial Perspective
Abstract Views :159 |
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Authors
Ramprasath Ramakrishnan
1,
Jolius Gimbun
1,
Fahmi Samsuri
2,
Vigneswaran Narayanamurthy
2,
Natarajan Gajendran
3,
Yamini Sudha Lakshmi
4,
Denisa Stranska
5,
Balu Ranganathan
6
Affiliations
1 University Malaysia Pahang, Gambang Campus, Gambang - 26300, MY
2 University Malaysia Pahang, Pekan campus, Pekan - 26600, MY
3 Department of Plant Biology and Plant Biotechnology, Presidency College, Chennai - 600005, Tamil Nadu, IN
4 Department of Medical Biochemistry, University of Madras, Chennai - 600113, Tamil Nadu, IN
5 InStar Technologies a.s., Liberec - 46007, Czech Republic
6 Palms Connect Sdn Bhd, Shah Alam - 40460, Selangor Darul Ehsan, MY
1 University Malaysia Pahang, Gambang Campus, Gambang - 26300, MY
2 University Malaysia Pahang, Pekan campus, Pekan - 26600, MY
3 Department of Plant Biology and Plant Biotechnology, Presidency College, Chennai - 600005, Tamil Nadu, IN
4 Department of Medical Biochemistry, University of Madras, Chennai - 600113, Tamil Nadu, IN
5 InStar Technologies a.s., Liberec - 46007, Czech Republic
6 Palms Connect Sdn Bhd, Shah Alam - 40460, Selangor Darul Ehsan, MY
Source
Indian Journal of Science and Technology, Vol 9, No 15 (2016), Pagination:Abstract
Background/Objectives: Needleless electrospinning technology surmounts the shortcomings and bottlenecks of the conventional needle based electrospinning systems. Spinneret clogging and lower throughput in terms of productivity has been the setbacks of the conventional technology leading to fewer nanofibers based commercial products. Nanofiber based products finds a market in healthcare, energy and defence. Proof of concept leading to lab level prototype scaling up into industrial level of nanofiber production units is the focus of this paper. Methodology/Analysis: A simple search in the scopus web portal with a keyword ‘electrospinning’ resulted in 16,272 publications as of date. Same search for patent in US patent office portal resulted in 1939 granted patent documents. A comparison of years of technology time cycle (110 years), publications (16,272) and granted patents (1939) with the companies (31) working on electrospun products was made. Findings: Bubble, hollow tube, roller, wire based and slit-surface needleless electrospinning units are discussed on the basis of entrepreneurial product cycle of prototype development translating into commercial units. Nanofiber production at a mean diameter of 140 nm at commercial level using Poly (ethylene) oxide for Nano Drug Delivery Systems (NDDS) by wire based free surface electrospinning has been analysed. Novelty/Improvements: The analysis proves an entrepreneurial approach in the area of electrospinning as evidenced by number of patents match ups or exceeds publications in some region and also depicts its futuristic demand in several areas including healthcare and energy sectors.Keywords
needleless elecrospinning; wire based; nanofibers; nano drug delivery systems; nanocarriers;- Natural Fiber Composites as Potential External Strengthening Material – A Review
Abstract Views :201 |
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Authors
Affiliations
1 Faculty of Civil Engineering and Earth Resources,Universiti Malaysia Pahang, Gambang, Pahang, Malaysia, MY
2 Faculty of Civil Engineering and Earth Resources,Universiti Malaysia Pahang, Gambang, Pahang, MY
3 Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), Universiti Malaysia Pahang, Gambang, Pahang Malaysia, MY
1 Faculty of Civil Engineering and Earth Resources,Universiti Malaysia Pahang, Gambang, Pahang, Malaysia, MY
2 Faculty of Civil Engineering and Earth Resources,Universiti Malaysia Pahang, Gambang, Pahang, MY
3 Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), Universiti Malaysia Pahang, Gambang, Pahang Malaysia, MY
Source
Indian Journal of Science and Technology, Vol 10, No 2 (2017), Pagination:Abstract
Synthetic Fiber Rreinforced Polymer composites (FRP) have been widely accepted by the construction industries as an effective external strengthening material to rehabilitate the existing structures deficiencies. These materials possess outstanding performances like high strength-to-weight ratio, resistance to corrosion, and lightness. However, the drawbacks include high costs during the manufacturing and end-life services, less environmental-friendly and cause adverse effects to human health. Environmental issues on global warming have triggered rapid development of natural fibers as sustainable materials for the strengthening of Reinforced Concrete (RC) structures. This paper presents a detailed review on the potential use of natural fibers as reinforcement in polymeric strengthening materials. A comparison was made between various types of fibers in terms of their chemical and mechanical properties. Bamboo fiber has demonstrated great potential among other natural fibers due to its superior physico-mechanical and thermal properties.Keywords
Bamboo Fiber, External Strengthening, Natural Fiber, Natural Fiber Composites, Structural Application- Understanding the Effect of Surface Terrain on Pollution Transport around Gebeng Industrial Area
Abstract Views :198 |
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Authors
Affiliations
1 Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), MY
2 Faculty of Civil Engineering and Earth Resources, UniversitiMalaysia Pahang, 26300 Gambang, Pahang, MY
1 Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), MY
2 Faculty of Civil Engineering and Earth Resources, UniversitiMalaysia Pahang, 26300 Gambang, Pahang, MY
Source
Indian Journal of Science and Technology, Vol 10, No 2 (2017), Pagination:Abstract
Objectives:Air pollution dispersion is greatly affected by the wind speed and direction. Most often the pollution dispersion from industrial area is not fully understood. In the present work, the effect of surface topology on the wind speed and atmospheric turbulent around the Gebeng industrial area in Pahang was studied using a Computational Fluid Dynamics (CFD) method. Methods/Statistical Analysis: The typical southeastern wind with a speed of about 1.3003 m/s corresponding to the actual speed of approximately 5 km/h was considered for validation. The turbulent flow was modelled using k-ε model. The model was compared with the Laser Doppler Velocimetry (LDV) measurement onthe scale-down rig. Findings:The CFD prediction showed good agreementwithin 10% deviation with the experimental measurement via LDV. It was found that the plume of noxious gas driven by the eastern wind can affect the nearby residential area R2, whereas the western wind is affecting the residential area R1. In the presence of hill obstacle, the gas plume moves southward into the flat terrain. Application/ Improvements: Results from this work may be useful to understand the risk of air pollutant dispersion around Gebeng industrial area.Keywords
CFD, LDV, Atmospheric Pollution Dispersion, Turbulence, Wind Speed- Ultrasonic Assisted Extraction on Phenolic and Flavonoid Content from Phyllanthus niruri Plant
Abstract Views :197 |
PDF Views:0
Authors
Affiliations
1 Faculty of Chemical and Natural Resources Engineering, University Malaysia Pahang, 26300 Gambang, Pahang,, MY
2 Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia Pahang,26300 Gambang, Pahang,, MY
1 Faculty of Chemical and Natural Resources Engineering, University Malaysia Pahang, 26300 Gambang, Pahang,, MY
2 Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia Pahang,26300 Gambang, Pahang,, MY
Source
Indian Journal of Science and Technology, Vol 10, No 2 (2017), Pagination:Abstract
Objectives: To find out the effect of ultrasonic assisted extraction with various solvents of phenolic and flavonoid compound extracted from P. niruri. Methods/Statistical Analysis: Phenolic content from P. niruri was analyzed using Singleton’s method while the flavonoid content was analyzed by aluminum chloride colorimetric assay. Findings: The polyphenols extraction was greatly affected by the solvent type and concentration, particle size of the plant powder, solid liquid ratio and frequency. The highest phenolic content and flavonoid content were obtained at the solid ratio of 2g dry weight P. niruri powder at 119.28 mg GAE/g DW and 75.86 mg QE/g DW. Application/Improvements: The phenolic and flavonoid content reached its optimum extraction yield at the particle size of 125 μm, using 40% EtOH as solvent and the extraction yield increased when the ultrasonic frequency is increased to 53 kHz. The extraction method used in this work may serve as a useful guide to obtain optimum polyphenol extraction from P. niruri.Keywords
Phyllanthus niruri, Total Phenolic Content, Total Flavonoid Content, Ultrasonic Assisted Extraction- Natural Resources Product Prospects - International Conference on Fluids and Chemical Engineering - FluidChE 2017, Malaysia
Abstract Views :178 |
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Authors
Affiliations
1 Center of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia, Gambang – 26300, Pahang, MY
2 Department of Plant Biology and Plant Biotechnology, Presidency College, Chennai – 600005, Tamil Nadu, IN
3 Palms Connect LLC, Showcase Lane, Sandy, UT 84094, US
1 Center of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia, Gambang – 26300, Pahang, MY
2 Department of Plant Biology and Plant Biotechnology, Presidency College, Chennai – 600005, Tamil Nadu, IN
3 Palms Connect LLC, Showcase Lane, Sandy, UT 84094, US
Source
Indian Journal of Science and Technology, Vol 10, No 16 (2017), Pagination:Abstract
The 2nd edition of Fluids and Chemical Engineering conference, FluidsChE 2017 held in April 2017 at Kota Kinabalu, Sabah is organised by the Center of Excellence for Advanced Research in Fluid Flow (CARIFF) Universiti Malaysia Pahang, Malaysia. FluidsChE 2017 covers a wide area of engineering and sciences with the theme "Advancing Fluids Engineering for A Sustainable Future". Over 200 submissions were received from countries such as India, Iraq, Pakistan, Indonesia, Malaysia, Thailand, Kazakhstan and Qatar. More than 100 full papers were submitted for the special issue. After an extensive peer-review process, 66 papers were finally selected for publication. The current special issue volume consisted of natural resources product lifecycle, polymer technology and pharmaceutical technologyKeywords
FluidChE 2017, Natural Resources, Polymer Technology, Pharmaceutical Technology.- Chemical Engineering Allied Fields - International Conference on Fluids and Chemical Engineering- FluidsChE 2017, Malaysia, Special Issue, Vol: 3
Abstract Views :145 |
PDF Views:0
Authors
Affiliations
1 Department of Plant Biology and Plant Biotechnology, Presidency College, Chennai - 600005, Tamil Nadu, MY
2 Center of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia, Pahang- 26300, Gambang, MY
3 Palms Connect LLC, Showcase Lane, Sandy, UT - 84094, US
1 Department of Plant Biology and Plant Biotechnology, Presidency College, Chennai - 600005, Tamil Nadu, MY
2 Center of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia, Pahang- 26300, Gambang, MY
3 Palms Connect LLC, Showcase Lane, Sandy, UT - 84094, US