Diagnosis of diseases through exhalation is a new, noninvasive method. In this study, a new
photonic crystal fiber (PCF) has been proposed for detecting ammonia gas in breath. The …

Detection of ammonia concentration in exhaled human breath is one of the early diagnoses
of renal disease. A photonic crystal fiber (PCF) gas sensor is designed, which gives the …

A new hybrid photonic crystal fiber (PCF) with circular rings based microstructure core gas
sensor has been proposed for detecting ammonia gas at the wavelength of 1.544 μm. The …

The analysis of exhaled human breath has great significance for early noninvasive
diagnosis. Poor selectivity and strong humidity are two bottlenecks for the application of gas …

High ammonia (NH 3) concentration in the exhaled breath can be used as a crucial
biomarker for end-stage of renal disease. Detecting exhaled ammonia via gas sensors …

Breath analysis, compared with blood analysis, can enable real-time non-invasive
diagnostics through quantification of exhaled biomarkers. Here, we demonstrate, for the first …

One of the modern ways to diagnose diseases is through exhale gas of patients, which is
non-invasive and therefore desirable to doctors. The composition of exhaled breath contains …

Breath ammonia detection has been a significant non-invasive approach for disease
diagnosis. However, the reported methods for breath ammonia detection suffer from high …

This study presented a novel shape photonic crystal fiber based gas sensor for the first time.
Perfectly circular shape air hole are arranged to form core and cladding region. Based on …

Abstract This paper describes a micro-cored photonic crystal fiber-based gas sensor that
uses a simple structure and proper analysis has done to detect sulfur dioxide gas. SO 2 is a …