Capture and detection of <i>Escherichia coli</i> with graphene aerogels

Shi, Chenyang; Tang, Yanan; Yang, Hanyu; Yang, Jin Ho; Wu, Yuyang; Sun, Hang; Yin, Shengyan; Wang, Guangbin

doi:10.1039/d2tb01749k

Cited by 5 publications

(6 citation statements)

References 39 publications

(46 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To distinguish the different aerogels, the low-density rGO aerogels (14.9 mg·cm –3 ) and high-density rGO aerogels (22.6 mg·cm –3 ; Table ) were designated as rGO aerogel-LD and rGO aerogel-HD, respectively. Both samples (Figure c,d) displayed highly porous microstructures, in line with the previously reported results for hydrothermally synthesized aerogels . The nanocarbon structures were tightly interconnected, thus forming the integral aerogel framework.…”

Section: Resultssupporting

confidence: 89%

“…Both samples (Figure 1c,d) displayed highly porous microstructures, in line with the previously reported results for hydrothermally synthesized aerogels. 59 The nanocarbon structures were tightly interconnected, thus forming the integral aerogel framework. rGO aerogel-HD exhibited denser structures compared to the lowdensity aerogel, confirming its high-density characteristics.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Density-Induced Joule-Heating Characteristics of Nanocarbon Aerogels: Implications for Tunable Electrothermal Behaviors

Xia

Shen

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

An in-depth understanding of the electrothermal characteristics and behaviors of nanocarbon aerogels is crucial for optimizing their Joule-heating performance and expanding their applications. Modifying a single parameter of nanocarbon aerogels can reveal potential variations in Joule heating, which makes it a valuable area for investigation. This study explores reduced graphene oxide aerogels and reduced graphitized nanofiber aerogels with varying densities (14.9–31.7 mg·cm–3), fabricated using the hydrothermal method and polymer-assisted cross-linking method, to elucidate density-induced Joule-heating discrepancies. The critical step in aerogel preparation is the freeze-drying process, which yields structurally intact nanocarbon aerogels for Joule-heating experiments. Aerogels with higher densities displayed enhanced electrical and thermal conductivities (up to 24.9 S·m–1 and 0.882 W·m–1·K–1, respectively) compared to their lower-density counterparts, owing to the increased number of pathways available for electron/phonon transportation. The low-density aerogels exhibited more pronounced features in the heating temperature range (up to 117 °C) and efficiency (up to 46.5 °C·W–1), making them more suitable for energy-efficient applications. Despite variations in the density, all of the fabricated aerogels showed efficient electron hopping between the interconnected nanocarbons, which enabled uniform resistive heating throughout the aerogel entity. This work highlighted the importance of density control in altering the Joule-heating performance of nanocarbon aerogels for specific applications, which has far-reaching implications for optimizing the properties of other electrically conducting aerogel materials.

show abstract

Section: Resultssupporting

confidence: 89%

Section: ■ Results and Discussionmentioning

confidence: 99%

Density-Induced Joule-Heating Characteristics of Nanocarbon Aerogels: Implications for Tunable Electrothermal Behaviors

Xia

Shen

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…Shi prepared a biosensor system based on the graphene aerogel, which can sensitively capture and detect E. coli. 6 This graphene aerogel is prepared by the one-step hydrothermal synthesis method without any reduction reagent. As shown in Fig.…”

Section: The Electrochemical Sensing Performance Of 3d Graphene Compo...mentioning

confidence: 99%

“…5 In addition, bacteria, including Escherichia coli and Salmonella, can cause severe food poi-soning and catastrophic infections. 6 Besides bacteria, cancer cells are a subject of greatest concern to scientists. An abnormal increase in the number of cancer cells can lead to cancer.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recent advances in biological molecule detection based on a three-dimensional graphene structure

Yin,

Yang,

et al. 2024

Analyst

Self Cite

View full text Add to dashboard Cite

show abstract

Two-Dimensional Carbon Nanomaterial-Based Biosensors: Micromachines for Advancing the Medical Diagnosis

Bhatt¹,

Punetha²,

Pathak³

et al. 2023

Advanced Structured Materials

View full text Add to dashboard Cite

Capture and detection of Escherichia coli with graphene aerogels

Abstract: Some pathogenic bacteria may cause serious food poisoning as well as catastrophic infections. Thus, it is critical to identify bacteria using simple, quick, and sensitive methods. Herein, we fabricate a...

Cited by 5 publications

References 39 publications

Density-Induced Joule-Heating Characteristics of Nanocarbon Aerogels: Implications for Tunable Electrothermal Behaviors

Density-Induced Joule-Heating Characteristics of Nanocarbon Aerogels: Implications for Tunable Electrothermal Behaviors

Recent advances in biological molecule detection based on a three-dimensional graphene structure

Two-Dimensional Carbon Nanomaterial-Based Biosensors: Micromachines for Advancing the Medical Diagnosis

Contact Info

Product

Resources

About