Sina Khalili

Buali Sina University · Department of Analytical Chemistry

This research introduced a microfluidic kit for rapid and economic detection of melamine (MLM) and sodium hypochlorite (NaOCl) in milk samples. The kit allows for simultaneous identification of MLM and NaOCl by reacting with cyanuric acid-modified Au nanoparticles (Au@Ca) and N, N-diethyl-p-phenylenediamine, respectively. The resulting color change...

This research presents a compact portable electronic gas sensor that can be monitored through a smartphone application. The smart sensor utilizes three state-of-the-art sensors. The sensors integrate an ESP8266 microcontroller within the same device. This facilitates their integration with the electronics and enhances their performance. Herein, pri...

This paper reports on the development of a flexible-wearable potentiometric sensor for real-time monitoring of sodium ion (Na⁺), potassium ion (K⁺), and pH in human sweat. Na0.44MnO2, polyaniline, and K2Co[Fe(CN)6] were used as sensing materials for Na⁺, H⁺ and K⁺ monitoring, respectively. The simultaneous potentiometric Na⁺, K⁺, and pH sensing wer...

Abstract (EN) A portable colorimeter for determining light absorbance and/or light emission of a liquid sample is disclosed. The portable colorimeter includes a housing with at least one sloping surface relative to a horizontal axis of the housing, a digital image-capturing device placed on at least one sloping surface, at least one light source p...

Quantum dots are proven powerful probes for fluorescence imaging and have distinct properties that give them unique capabilities. Currently, they are being developed for a range of additional applications including the detection of disease, fluorescent assays for drug discovery, single protein tracking and intracellular reporting. Here, the various...

One of the current research lines in analytical chemistry is the design and utilization of novel materials with higher selectivity and improved analytical performance in various steps of chemical analysis. In this sense, Metal–Organic Frameworks (MOFs) have attracted attention as a potential alternative to current commercially available materials....

One of the current research lines in analytical chemistry is the design and utilization of novel materials with higher selectivity and improved analytical performance in various steps of chemical analysis. In this sense, Metal–Organic Frameworks (MOFs) have attracted attention as a potential alternative to current commercially available materials....

This paper reports on developing a low cost but efficient paired emitter–detector diode (PEDD)-based photometer. The photometer consists of a white light-emitting diode (LED) as the emitter diode, an RGB LED as the detector diode, and a multimeter for recoding the signal. The developed PEDD-based photometer was utilized for the determination of liq...

Light-emitting diodes (LEDs) can be used in paired emitter-detector diodes (PEDD) optical sensors as both the light source and the detector. PEDD-based photometers provide low fabrication cost, low power consumption, ease of miniaturization, and a high signal-noise ratio response in a wide wavelength range. This paper reports on developing a cheap...

In this study, a magnetic covalent organic framework (MCOF) was synthesized using a novel and simple solution method to explore its potential as a magnetic adsorbent for dye removal. The synthesis of MCOF was confirmed using different techniques and data demonstrated that the as-prepared nanoparticles were 21–46 nm in diameter. The MCOF, before and...

Engineering conductive polymers (CPs) onto separation and extraction devices is a promising topic for future research in modern analytical chemistry. This chapter investigates current trends in the characteristics and uses of CPs in the separation stage of study. CPs can provide a variety of opportunities and possibilities for manufacturing novel s...

Conductive polymers (CPs), also known as synthetic metals, have been the focus of enormous interest in the research community. In recent years, they have been used in myriad applications due to their intrinsic properties, including good electrical conductivity, flexibility, easy preparation, mechanical strength, biocompatibility, and low cost. Toda...

Miniaturization is a general concept addressing the trend of manufacturing small and smaller mechanical, optical, and electronic products and devices. Today, this trend has gained a high interest of researchers of engineering, medicine, materials science, physics, chemistry, and computer science. An analytical process consists of six general steps...

Separation instruments including gas chromatography, high pressure/performance liquid chromatography, capillary electrophoresis, and ion chromatography have become a part of most of the analytical laboratories. These methods are primarily used for the separation of complex samples and quantitation of a target analyte in the sample. Some of these in...