Publication detail

Multi-Sensing Platform Based on 2D Monoelement Germanane

VAGHASIYA, J. MAYORGA-MARTINEZ, C. SONIGARA, K. LAZAR, P. PUMERA, M.

Original Title

Multi-Sensing Platform Based on 2D Monoelement Germanane

Type

journal article in Web of Science

Language

English

Original Abstract

Covalently functionalized germanane is a novel type of fluorescent probe that can be employed in material science and analytical sensing. Here, a fluorometric sensing platform based on methyl-functionalized germanane (CH3Ge) is developed for gas (humidity and ammonia) sensing, pH (1-9) sensing, and anti-counterfeiting. Luminescence (red-orange) is seen when a gas molecule intercalates into the interlayer space of CH3Ge and the luminescence disappears upon deintercalation. This allows for direct detection of gas absorption via fluorometric measurements of the CH3Ge. Structural and optical properties of CH3Ge with intercalated gas molecules are investigated by density functional theory (DFT). To demonstrate real-time and on-the-spot testing, absorbed gas molecules are first precisely quantified by CH3Ge using a smartphone camera with an installed color intensity processing application (APP). Further, CH3Ge-paper-based sensor is integrated into real food packets (e.g., fish and milk) to monitor the shelf life of perishable foods. Finally, CH3Ge-based rewritable paper is applied in water jet printing to illustrate the potential for secret communication with quick coloration and good reversibility by water evaporation.

Keywords

2D materials; food quality analysis; gas sensors; germanane; humidity; secret communication

Authors

VAGHASIYA, J.; MAYORGA-MARTINEZ, C.; SONIGARA, K.; LAZAR, P.; PUMERA, M.

Released

1. 11. 2023

Publisher

WILEY-V C H VERLAG GMBH

Location

WEINHEIM

ISBN

1521-4095

Periodical

ADVANCED MATERIALS

Year of study

35

Number

44

State

Federal Republic of Germany

Pages count

13

URL

https://onlinelibrary.wiley.com/doi/10.1002/adma.202304694

Full text in the Digital Library

http://hdl.handle.net/11012/245111

BibTex

@article{BUT184999,
  author="Jayraj Vinubhai {Vaghasiya} and Carmen C. {Mayorga-Martinez} and Kevalkumar Kishorbhai {Sonigara} and Petr {Lazar} and Martin {Pumera}",
  title="Multi-Sensing Platform Based on 2D Monoelement Germanane",
  journal="ADVANCED MATERIALS",
  year="2023",
  volume="35",
  number="44",
  pages="13",
  doi="10.1002/adma.202304694",
  issn="1521-4095",
  url="https://onlinelibrary.wiley.com/doi/10.1002/adma.202304694"
}