Siam Physics Congress 2017

Session

A1: Biological

24 May 2017, 13:30

Ballroom 1

Conveners

A1: Biological

• Thana Sutthibutpong
• Jirasak Wong-ekkabut (1.Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand 2.Computational Biomodelling Laboratory for Agricultural Science and Technology (CBLAST), Faculty of Science, Kasetsart University, Bangkok 10900, Thailand)
• Pongsakorn Jantaratana (Department of Physics, Faculty of Science, Kasetsart University)

9. Effects of Relaxation on Drag Force and Diffusivity of Highly Charged Spherical Particles in Cylindrical Pores

Kittipitch Yooprasertchuti, Dr Panadda Dechadilok

24/05/2017, 13:30

Biological Physics and Biomedical Engineering

Oral

Diffusion of macromolecules through nanopores of comparable sizes is affected by an interaction between the particle and the confining entities including both hydrodynamic and electrostatic interactions. The particle-pore hydrodynamic interaction causes an increase in the drag force exerted on the particle, resulting in the reduction of its diffusivity. If the particle is charged and submerged...

79. Blood type screening on polymeric strip test for clinical samples

Mr Chanwit Kataphiniharn

24/05/2017, 13:45

Biological Physics and Biomedical Engineering

Oral

The point of care (POC) blood group typing has been developed for conveniently and immediately tests by polymeric strip test. Poly (methyl methacrylate (PMMA)) substrate was chosen and then designed the functional group layer to establish whether person is A, B, AB, or O blood type by naked eye. The substrate was modified by chemical bonding via carboxyl-methyl dextran to immobilize ABO...

211. Unpinning of spiral waves from regtangular obstacles by stimulated wave trains

Ms Benjamas Ponboonjaroenchai (Kasetsart University)

24/05/2017, 14:00

Biological Physics and Biomedical Engineering

Oral

Pinning phenomena emerge in many dynamical systems. They are found to stabilize extreme conditions such as superconductivity and superfluidity. In cardiology, lengthened tachycardia correspond to propagating action potential in forms of spiral waves pinned to anatomical obstacles including veins and scares. Thus, elimination such waves is important particularly in medical treatments. We...

241. Improvement of electrocardiogram by empirical wavelet transform.

Ms Vikanda Chanchang (Kasetsart University)

24/05/2017, 14:15

Biological Physics and Biomedical Engineering

Oral

Electrocardiogram (ECG) is a crucial tool in the detection of cardiac arrhythmia. It is also often used in a routine physical exam, especially, for elderly people. This graphical representation of electrical activity of heart is obtained by a measurement of voltage at the skin so that the signal is always contaminated by noise from various sources. For a proper interpretation, the quality of...

342. Pesticide Detection Based on Ion Sensitive Field Effect Transistor

Mr Supanat Sasipongpana (College of Nanotechnology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520 Thailand)

24/05/2017, 14:30

Biological Physics and Biomedical Engineering

Oral

Development of pesticide sensor based on the ion sensitive field effect transistor (ISFET) was investigated by using acetylcholinesterase which is an enzyme that catalyzes the hydrolysis of acetylcholine to acetate and choline. The ISFET can measure the inhibition reaction of acetylcholinesterase enzyme by the carbaryl pesticide through the pH changed in solution. The acetylcholinesterase was...

121. Electrical based harvesting of microalgae: Type electrodes

Mr Piyachat Wungmool (Kasetsart University), Mr Wu Zhe (Kasetsart University), Mr Nakorn Kumchaiseemak (Kasetsart University), Ms Sirinaree Supansomporn (Kasetsart University), Mrs Malee Sutthiopas (Kasetsart University), Mr Niran Jantawong (Kasetsart University)

24/05/2017, 14:45

Biological Physics and Biomedical Engineering

Oral

We investigate the harvesting of microalgae, living in a culture fluid, by an application of constant electrical current via planar electrodes are made from different materials: aluminum, stainless steel, and graphite. All of these electrodes produce similar fine sub-millimeter bubbles which can levitate the microalgae to the top surface. Unlike graphite, metal sheets are cheap and convenient...