Title of article
Blended Film from PVA and Sansevieria trifasciata Dichloromethane Fraction for Reducing Heat Radiation from Smartphones
Author/Authors
ilmiawati, auliya ipb university, ipb campus dramaga - organic chemistry division, department of chemistry, Bogor, Indonesia , pujiyati, . ipb university, ipb campus dramaga - organic chemistry division, department of chemistry, Bogor, Indonesia , hidayat, asep ministry of environmental and forestry - forest research and development centre, research, development and innovation agency - forest microbiology laboratory, Bogor, Indonesia , sugita, purwantiningsih ipb university, ipb campus dramaga - organic chemistry division, department of chemistry, Bogor, Indonesia , irfana, luthfan ipb university, ipb campus dramaga - organic chemistry division, department of chemistry, Bogor, Indonesia , arifin, budi ipb university, ipb campus dramaga - organic chemistry division, department of chemistry, Bogor, Indonesia
From page
91
To page
96
Abstract
It has been reported that the lidah mertua plant (Sansevieria trifasciata) can absorb electromagnetic radiation from various electronic equipment. The current study aimed to make a film layer from polyvinyl alcohol (PVA) and a dichloromethane (DCM) fraction of S. trifasciata to reduce heat radiation from smartphones. S. trifasciata leaves were macerated using ethanol and partitioned with ethyl acetate, DCM, and n-butanol. The DCM fraction was chosen to create the film, for which PVA was also used. The blended film made from PVA and 0.02% DCM reduced heat radiation from smartphones by up to 4.4 °C starting from the first minute of use; its heat reduction remained stable until the 20th minute. Based on these results, it was determined that the active compounds in the DCM fraction are closely related to saponin-type steroids.
Keywords
radiation , sansevieria trifasciata , smartphone
Journal title
Makara Journal Of Science
Journal title
Makara Journal Of Science
Record number
2748180
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