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Myungho Lee,You Lim Kim,Mun Sun Maeng,Youn Suk Lee 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
The remaining residue in the package after consuming the food products has recently been a major issue in the food industry due to the food waste or loss, and the recycling difficulty of packaging materials. Most liquid foods can easily adhere to the inner surface of the container and remain it leading to food-wasting. Superhydrophobic (SHPC) surface of the package may reduce the remaining portion of the residual liquid food. Surface coating on the package with waxes as the food safety compounds is an eco-friendly treatment of low surface energy hydrocarbons for providing SHPC properties. However, use of only waxes for the surface coating is limited due to the low adhesive forces and thermally unstable for hot food application. This study focuses on the development of liquid food sticky resistance polymeric film with SHPC properties. The coating package structure is fabricated with waxes and silica aerogel via spraying method on LLDPE film. SHPC property of the fabricated film is evaluated using static contact angle and durability test. The results show that the aerogel/wax coated films represent good SHPC properties which have up to 150o contact angle compared to the control.
Transient Hypoglycemia-induced Hemiparesis Mimicking Stroke -A Case Report-
Seong Hwa Lee,Ji Ho Ryu,Yong In Kim,Maeng Real Park,Mun Ki Min,Sun Min Hwang 대한중환자의학회 2011 Acute and Critical Care Vol.26 No.3
Hypoglycemia is caused by poor oral intake, excessive exercise, alcohol abuse and inaccurate use of a hypoglycemic agent or insulin in patients that have history of diabetes mellitus (DM), especially in the elderly. Severe hypoglycemia has a variety of different symptoms or signs from focal neurologic deficits to severe coma, or death. It can be difficult to differentiate hypoglycemia-induced symptoms or signs, and stroke or cardiovascular disease in acute setting. Transient hypoglycemic hemiparesis is an infrequent case in the emergency department (ED), which is frequently misdiagnosed for stroke. When patients with decreased mental status or hemiparesis are admitted to the ED, a routine blood sugar test is essential. Hypoglycemic hemiparesis if unrecognized can result in permanent neurological damage. Therefore, it is important to detect hypoglycemia early and treat it appropriately.
A surface acoustic wave-based immunosensing device using a nanocrystalline ZnO film on Si.
Lee, Dae-Sik,Lee, Jun Hwang,Luo, Jikui,Fu, Yongqing,Milne, William I,Maeng, Sunglyul,Jung, Mun Yeon,Park, Sun Hee,Yoon, Hyun C American Scientific Publishers 2009 Journal of Nanoscience and Nanotechnology Vol.9 No.12
<P>The novelty of this study resides in the fabrication of a bio-sensing device, based on the surface acoustic wave (SAW) on a nanocrystalline ZnO film. The ZnO film was deposited using an rf magnetron sputtering at room temperature on silicon. The deposited films showed the c-axis-oriented crystallite with grain size of approximately 40 nm. The immunosensing device was fabricated using photolithographic protocols on the film. As a model biomolecular recognition and immunosensing, biospecific interaction between a 6-(2,4-dinitrophenyl)aminohexanoic acid (DNP) antigen and its antibody was employed, demonstrating the shifts of resonant frequencies on SAW immunosensing device. The device exhibited a linearity as a function of the antibody concentration in the range of 20-20,000 ng/ml.</P>