This study investigated the influence of morphology a polypyrrole (PPy) functional layer on acoustic impedance and PPy-QCM characteristics. In this study, PPy thin was deposited 1 side QCM, following dimension Au electrode. The production method yielded simple design PPy-functionalized QCM. characteristics were determined by analysis microscopic observation. A vacuum thermal evaporation technique used to deposit top allowing vertical platelet structure formation. Scanning Electron Microscope...

Context: The early diagnosis and detection of lung cancer are crucial for reducing mortality morbidity. Recently, the study biomarkers has expanded significantly. Several volatile organic compounds (VOCs) found in exhaled breath may serve as valuable indicators cancer, which is influenced by pathological factors associated with development. Aims: To create a profile VOCs patients healthy controls to examine differences VOC levels among based on histological type, stage, therapy. Methods: A...

The quantification of particle emission factors under controlled laboratory conditions for burning the following five common tree species found in South East Queensland forests has been studied: Spotted Gum (Corymbia citriodora), Blue (Eucalyptus tereticornis), Bloodwood intermedia), Iron Bark crebra), and Stringybark umbra). results study show that number PM2.5 mass depend on type rate. For fast conditions, average are range 3.3−5.7 × 1015 particles/kg woods 0.5−6.9 leaves branches, 140−210...

Ultrafine particles (UFPs) are one of motorcycle exhaust emissions which can penetrate the lung alveoli and deposit in kidney. This study was aimed to investigate mice kidney cell physical damage (deformation) due emission exposures. The were sucked from muffler with rate 33 cm3/s passed through an ultrafine particle filter system before introduced into exposure chamber. dose concentration varied by setting injected time 20s, 40s, 60s, 80s, 100s. exposed smoke chamber for 100 s twice a day....

This research aimed to prove the existing natural transition of Metal Coordination Anthocyanin complex (MAC) from freeze-dried Java plum (Syzygium cumini) fruit and its role as free radical scavenging.The Liquid Chromatography-Mass Spectrometry (LCMS) analysis showed presence anthocyanin in fruit, while metals Fe, Cu, Ni were also found detected by X-Ray Fluorescence (XRF).The Fourier Transform Infrared Spectroscopy (FTIR) spectra revealed interaction organic functional groups with...

Bioaerosols are the biological constituent of PM (particulate matter).Bioaerosols produced during many activities in landfills, agricultural sectors, food preservation, and others daily life [1,2].Bioaerosols can be generated from biomass burning activity, resulting bioaerosols with a diameter <2.5 µm (fine bioaerosols) [2].Bioaerosols commonly have forms like fungal spores, pollen, bacteria, even viruses.As confirmed before, consist Aspergillus, Alternaria, Cladosporium species...

Carbon dioxide, or CO 2 gas, is an important atmospheric gas in the environment.An increase concentration affects environmental damage.On other side, increases from year to year.In line with this, there a need develop measurement system of good performance.Thus, this study aims quartz crystal microbalance (QCM)-based

PM0.1 (ultrafine particles) emitted by motorcycles have been known as the major contributors to air pollution, and a harmful impact on human health.Therefore, there is need decrease concentration in ambient air.In this study, we developed an ultrafine particle filter that was made of banana leaf powder (Fb) water hyacinth (Eichhornia crassipes, Fwh).The mixed glutinous rice glue ratio 80%:20%.The characterized efficiency.The efficiency reducing particles determined measuring before after...

Abstract QCM or quartz crystal microbalance is a well-known sensor technology that generates cycles of oscillation related to mass change on the crystal’s surface. This works well when it has frequency counter and an oscillator drive count oscillation, good airflow regulator. study developed measurement system for aerosol concentrations with diameter less than 2.5 micrometers. The consists sensors, oscillator, counter, was tested inside exposure chamber constant emission source different...

Exposure to particulate matter (PM) has been identified as being responsible for affecting human health.Their impacts on erythrocytes are still unclear, especially PMs emitted from motor vehicles.This study investigated the correlation between exposures inflammatory agents of matters (in terms ultrafine particles, or PM 0.1 , and fine 2.5 ) contained in gasoline engine car exhaust emissions deformation mice erythrocytes.We used 65 male experimental animals.The were exposed filtered...

This research aimed to prove the ability of extracted freeze-dried java plum fruit applied with a cigarette filter decrease intensity free radicals in smoke. It was reported that there difference spectrum infrared (IR) pattern, leading wavelength shift smoke burning from after application extract on its (K1). The XRD analysis indicated were some diffraction peaks found K1. finding suggested able alter structure and position atoms cigarette. In addition, result ESR showed K1 less paramagnetic...

Emissions from burning biomass have become a problem in Indonesia.As found on the Indonesian island of Lombok, agricultural waste is burned for traditional industrial activities.On other hand, emissions contain many PMs (particulates) different size distributions recognized to significant correlation health impact.This study conducted predict impact PM exposure blood using ANN (artificial neural network) model as well histological examination.The relationship between both methods determined...

electivity level, and performance development needs, there is a need to develop new sensing technique with higher performance. This study used quartz crystal microbalance (QCM) graphene oxide (GO) as the selective coating materials. For this purpose, two different sensors were tested: uncoated QCM GO-coated QCM. The sensor performances tested inside an exposure chamber by exposing bacteria samples: B. pasteurii, sphaericus, cereus. sensor's frequency shift was counted using counter, while...

Amounts of motor vehicles in Indonesia have been recognized a sharply increase from year to with the increment reaching 22 % per annum. Meanwhile produce particulate emissions different sizes high concentrations depending on type vehicles, fuels, and engine capacity. Motor Particle are not only significantly contribute atmosphric particles but also adverse human health. In order reduce particle emission, it is needed filter. This study was aimed develop thin filter using coconut fiber for...

Volatile organic compounds or VOCs can be derived from many sources, like cooking, smoking, biomass burning, and motor vehicle emission. are a type of gas known to have significant relationship with human health air quality. It is necessary monitoring system determine VOC concentration in the surrounding environment. This study aims develop portable measurement for volatile different emission sources. The designed was tested under sources: cigarette smoke, mosquito coil, spray paint,...

The motorcycle emissions have significantly contributed to reducing the air quality due its fast growth for years in developing countries. Today Indonesia their amount has reached more than seven million. PM2.5 been measured high concentration. give adverse effect health. aim of study is develop a filtering system based on thermoradiation principle. filter made an aluminum arranged as net and placed certain position exhaust. efficiency calculated by reduction ratio concentration emitted from...

Abstract Particulate matters with the diameter less than 2.5 µm or PM2.5, have been known to health adverse. The developing of a measurement system PM high precision has become challenge in last decade. We design using NOVA SDS011 sensor measure concentration. problem is that capacity particulate matter range 0.3 10 µm, meanwhile we would like precision. Another this address how optimize sensor. A factor influenced optimization sample compartment. In paper, present different compartments....

Motor cycles grows very fast from year to in the developing countries, especially Indonesia. On other sides, emissions contribute high pollutants air. In terms of PM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2.5</sub> affect on human health. However data emitted by motorcycles are unavailable, and relationship between containing motor smokes impacts health is also unknown. This study was aimed investigate cycle mice/s lung damages...