Metal-organic frameworks derived ZnO@MoS2nanosheets core/shell heterojunctions for ppb-level acetone detection: Ultra-fast response and recovery

Publication date: Available online 18 November 2019Source: Sensors and Actuators B: ChemicalAuthor(s): Xiao Chang, Xiaofang Li, Xurong Qiao, Kun Li, Ya Xiong, Xiao Li, Tianchao Guo, Lei Zhu, Qingzhong XueAbstractIt is imperative to explore an accurate ppb-level acetone sensor for noninvasive detection of diabetes. In this work, two dimensional p-type MoS2 nanosheets are introduced on the surface of p-type ZnO derived from metal-organic frameworks (MOFs) to produce ZnO@MoS2 core/shell heterojunctions as a novel acetone sensor, showing a great enhancement of acetone response, about two orders of magnitude than that of pure ZnO derived from MOFs. For example, the ZnO@MoS2 exhibits about 80 times enhancement in response to 100 ppb acetone than that of pure ZnO. More importantly, this ZnO@MoS2 heterojunctions sensor exhibits an ultra-fast response/recovery to ultra-low concentration acetone (60 s/40 s @ 5 ppb), which is the best acetone sensing performance for the metal oxide-based materials reported to date. Moreover, the acetone sensing performances are negligibly affected by humidity and other gas, which is suitable for exhaled acetone detection. Finally, it is elucidated that the sharp increase of negative heterojunction interface resistance, ultra-fast gas diffusion rates in MoS2 nanosheets and strong interaction energy are key factors for the excellent acetone sensing properties of ZnO@MoS2. This work opens up a novel and efficient way for ultra-l...
Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research

Related Links:

Authors: Morita K, Wang D, Baba R, Morimoto H, Song Y, Kanazawa T, Yoshida Y Abstract Although it is known that desert dust exacerbates allergic diseases, how it affects the onset of autoimmune diseases is unclear. No epidemiological investigations or animal experiments have been conducted so far to elucidate the effects of desert dust on autoimmune diseases. Here, we focused on particulate matter, such Asian sand dust (ASD) that has been known to cause adverse health effects in East Asian countries, and conducted animal experiments to examine how ASD influences type 1 diabetes (T1D), an autoimmune disease. An ASD ...
Source: Immunological Investigations - Category: Allergy & Immunology Tags: Immunol Invest Source Type: research
Condition:   Bile Acid, Microbiota, Treatment of Diabetes Intervention:   Sponsor:   Chang Gung Memorial Hospital Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Conditions:   Ketosis;   Type 2 Diabetes Interventions:   Dietary Supplement: Ketone monoester;   Dietary Supplement: Placebo Sponsor:   University of British Columbia Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Condition:   Type 2 Diabetes Mellitus Interventions:   Drug: Dapagliflozin Pill;   Drug: Empagliflozin Pill;   Drug: Placebo pill Sponsor:   Centro Universitario de Ciencias de la Salud, Mexico Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Antioxidants&Redox Signaling,Volume 32, Issue 1, Page 60-77, January 1, 2020.
Source: Antioxidants and Redox Signaling - Category: Research Authors: Source Type: research
Publication date: Available online 11 December 2019Source: International Journal of Nursing SciencesAuthor(s): Lei Cui, Weixia Chen, Xingxing Yu, Changping JuAbstractPurposePatients undergoing maintenance hemodialysis (MHD) have a higher prevalence of cognitive impairment and inferior cognitive performance than the general population, and those with cognitive impairment are at higher risk of death than those without cognitive impairment. Having diabetes has been associated with an increased risk of cognitive decline in end-stage kidney disease patients treated with peritoneal dialysis or kidney transplant. However, these f...
Source: International Journal of Nursing Sciences - Category: Nursing Source Type: research
Conclusions: Compared with placebo, ghrelin agonists are effective and well-tolerated for the treatment of DG. PMID: 31816671 [PubMed - as supplied by publisher]
Source: Gut and Liver - Category: Gastroenterology Tags: Gut Liver Source Type: research
CONCLUSIONS: This study, in line with previous studies, shows that a diagnosis of T1DM is associated with a decreased risk of schizophrenia. This finding of an inverse association between T1DM and schizophrenia may bring an interesting piece, related to autoimmunity, into the schizophrenia-aetiology puzzle. PMID: 31816222 [PubMed - as supplied by publisher]
Source: Neuroendocrinology Letters - Category: Endocrinology Tags: Neuro Endocrinol Lett Source Type: research
Type 2 diabetes requires careful monitoring to reduce the risk of blood sugar spikes, which can lead to a host of health problems. Diet plays an essential role in regulating blood sugar and warding off serious threats and evidence backs regularly drinking a certain a certain tea to keep the condition in check.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news
Pancreas-kidney transplant extends life expectancy for patients with type 1 diabetes and renal disease more than kidney transplantation alone, according to a study published inDiabetes Care.Healio
Source: Society for Endocrinology - Category: Endocrinology Source Type: news
More News: Chemistry | Diabetes | Endocrinology | Nanotechnology | Organic