A5020745263- Advanced Chemical Sensor Technologies
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Adsorption and biosorption for pollutant removal
- Layered Double Hydroxides Synthesis and Applications
- Nanomaterials for catalytic reactions
- Extraction and Separation Processes
- Advanced Nanomaterials in Catalysis
- Conducting polymers and applications
- Electrospun Nanofibers in Biomedical Applications
- Acoustic Wave Resonator Technologies
- Advanced Photocatalysis Techniques
- Electrochemical sensors and biosensors
- Advancements in Battery Materials
- Nanoparticles: synthesis and applications
- Supercapacitor Materials and Fabrication
- TiO2 Photocatalysis and Solar Cells
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Biosensors and Analytical Detection
- Heavy metals in environment
- Catalytic Processes in Materials Science
- Polydiacetylene-based materials and applications
- Advanced biosensing and bioanalysis techniques
- Public Health and Nutrition
Universitas Gadjah Mada
2016-2025
ADA University
2009-2023
Universitas Islam Negeri Sultan Syarif Kasim Riau
2021
Politeknik Kesehatan Kemenkes Semarang
2018
University of New Brunswick
2002-2006
Authentication of meat floss origin has been highly critical for its consumers due to existing potential risks having allergic diseases or religion perspective related pork-containing foods. Herein, we developed and assessed a compact portable electronic nose (e-nose) comprising gas sensor array supervised machine learning with window time slicing method sniff classify different products. We evaluated four methods data classification (i.e., linear discriminant analysis (LDA), quadratic...
This study introduced a metal-oxide-semiconductor (MOS) based electronic nose (E-nose) to perform on-the-spot classification of superior-quality black tea. A piecewise feature method on line-fitting model was extract comprehensive features E-nose sensor response curves. Principal component analysis (PCA) and linear discriminant (LDA) were used for data dimensionality reduction structure visualization. Support vector machine (SVM) with Radial kernel function assess the performance E-nose. The...
We fabricated highly sensitive and selective ammonia gas sensors based on quartz crystal microbalance (QCM) platforms that were functionalized with electrospun polyvinyl acetate (PVAc) nanofibers doped various organic acids (i.e., oxalic, tartaric, citric acids). The structural chemical surface conditions of the nanofiber-based active layers top QCMs confirmed by scanning electron microscopy (SEM), atomic force (AFM), Fourier-transform infrared (FTIR) spectroscopy. sensitivity PVAc QCM...
A novel, highly sensitive and selective safrole sensor has been developed using quartz crystal microbalance (QCM) coated with polyvinyl acetate (PVAc) nanofibers. The nanofibers were collected on the QCM sensing surface an electrospinning method average diameter ranging from 612 nm to 698 relatively high Q-factors (rigid coating). Scanning electron microscopy (SEM) atomic force (AFM) used analyze PVAc nanofiber morphology, confirming its area roughness, which are beneficial in improving...
Nanofibers made of different materials have been continuously studied and widely used as membranes due to their simple fabrication techniques tunable surface characteristics. In this work, we developed polyacrylonitrile (PAN) nanofiber by the electrospinning method blended them with polysulfone (PSU) obtain superhydrophobic surfaces on fiber structures. The scanning electron microscopy (SEM) images show that fabricated nanofibers smooth continuous morphology. addition, observe effect...
Colorimetric analysis of heavy metal ions can be realized by the aid Ag nanoparticles to improve analytical characteristics. The method is based on localized surface plasmon resonance (LSPR) properties (AgNPs). In this work, we applied AgNPs with addition dithizone further selectivity and sensitivity Pb2+ analysis. sensing polyvinyl alcohol (PVA)-stabilized-colloidal in presence reported. A linear decrease LSPR absorbance at 421 nm was observed along increase concentration range 0.50–10...
Short-chain alcohols are a group of volatile organic compounds (VOCs) that often found in workplaces and laboratories, as well medical, pharmaceutical, food industries. Real-time monitoring alcohol vapors is essential because exposure to with concentrations 0.15–0.30 mg·L−1 may be harmful human health. This study aims improve the detection capabilities quartz crystal microbalance (QCM)-based sensors for analysis vapors. The active layer chitosan was immobilized onto QCM substrate through...
Ammonia gas sensors with high sensitivity, good selectivity, and superior stability continue to be developed monitor ammonia levels in the air. In this study, we a sensor based on quartz crystal microbalance coated polyvinyl acetate (PVAc) nanofiber overlaid polyaniline (PANi) nanocomposite increase sensitivity selectivity of sensor. The morphology chemical composition fabricated nanofibers were examined by scanning electron microscopy Fourier transform infrared spectroscopy. PANi...
Acetic acid is among the most common and damaging airborne contaminants. Exposure to acetic gas can irritate nose throat, which may harm human health. In light of increasing use in industry, there a critical need for an detection device that operate real time with excellent performance. This study developed sensor using quartz crystal microbalance (QCM) deposited polyvinylpyrrolidone (PVP) microfiber by well-recognized electrospinning method. Scanning electron microscopy (SEM)...
ABSTRACT Persimmon tannin (PT) was immobilized onto CoFe 2 O 4 @SiO microspheres to create a novel core–shell nanostructured magnetic bioadsorbent. The as‐designed @PT used recover Au(III) ions. bioadsorbent synthesis performed with different reaction times of 2, 4, 6, 12, and 24 h PT core weight ratio 0.8, 1.0, 1.2, 1.5, 2.0. profile adsorption by the material in aqueous medium investigated batch system. XRD, FTIR, TEM, thermal analysis, VSM were analyze materials. experiments conducted pH...
Vapors of volatile organic compounds such as benzene, toluene, and xylene (BTX) may cause health concerns. The sensitive detection these in air remains challenging. In this study, we reported on modification the Quartz Crystal Microbalance (QCM) sensing chip using polyvinyl acetate (PVAc) film active coating for analysis BTX vapors. PVAc was deposited QCM surface by a spin technique. morphology films confirmed scanning electron microscopy (SEM) atomic force (AFM). sensitivities based system...
Safrole is the main precursor for producing amphetamine-type stimulant (ATS) drug,
A quartz crystal microbalance (QCM) system was modified with polyvinyl acetate nanofibers and doped aniline for the detection of gaseous formaldehyde. The devised QCM gave a sensitivity 0.056 Hz ppm −1 is selective over other gases.