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Article ; Online: Tuning the Phase Transition of SrFeO

Zhang, Lu / Huan, Daoming / Zhu, Kang / Dai, Pengqi / Peng, Ranran / Xia, Changrong

ACS applied materials & interfaces

2022 Volume 14, Issue 15, Page(s) 17358–17368

Abstract: Developing high-performance cathodes with sufficient stability against ... ...

Abstract	Developing high-performance cathodes with sufficient stability against CO
Language	English
Publishing date	2022-04-06
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.2c01339
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Complexity analysis of cold chain transportation in a vaccine supply chain considering activity inspection and time-delay.

Dai, Daoming / Wu, Xuanyu / Si, Fengshan

Advances in difference equations

2021 Volume 2021, Issue 1, Page(s) 39

Abstract: The development of COVID-19 vaccine is highly concerned by all countries in the world. So far, many kinds of COVID-19 vaccines have entered phase III clinical trial. However, it is difficult to deliver COVID-19 vaccines efficiently and safely to the ... ...

Abstract	The development of COVID-19 vaccine is highly concerned by all countries in the world. So far, many kinds of COVID-19 vaccines have entered phase III clinical trial. However, it is difficult to deliver COVID-19 vaccines efficiently and safely to the areas affected by the epidemic. This paper focuses on vaccine transportation in a supply chain model composed of one distributor and one retailer (clinic or hospital), in which the distributor procures COVID-19 vaccines from the manufacturer and then resells them to the retailer. Distributor detects the activity level of the vaccines, and retailer is responsible for transportation of the vaccines. Firstly, we establish a difference equations model with time-delay. Secondly, we investigate the impact of time-delay on the stability of vaccine supply chain. In addition, we explore the influence of decision adjustment speed of the distributor (or retailer) on the stability of vaccine supply chain. Finally, we verify the theoretical results by a two-dimensional bifurcation diagram, the largest Lyapunov exponent, entropy, and domain of attraction. The results show that when the decision delay-time or the adjustment speed of decision variables exceeds a certain threshold, it brings a negative impact on the stability of vaccine supply chain system. The stability domain of the system shrinks as customers' sensitivity to cold chain transportation decreases and by contrast expends as customers' sensitivity to vaccine prices decreases. When the vaccine supply chain is in a state of chaos, the effect of external control over the system is superior to that of internal control over the system.
Language	English
Publishing date	2021-01-09
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2132815-8
ISSN	1687-1847 ; 1687-1839
ISSN (online)	1687-1847
ISSN	1687-1839
DOI	10.1186/s13662-020-03173-z
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Article: Tuning the Phase Transition of SrFeO₃₋δ by Mn toward Enhanced Catalytic Activity and CO₂ Resistance for the Oxygen Reduction Reaction

Zhang, Lu / Huan, Daoming / Zhu, Kang / Dai, Pengqi / Peng, Ranran / Xia, Changrong

ACS applied materials & interfaces. 2022 Apr. 06, v. 14, no. 15

2022

Abstract: Developing high-performance cathodes with sufficient stability against CO₂ rooting in ambient atmosphere is crucial to realizing the practical application of solid-oxide fuel cells. Herein, the Mn dopant is investigated to regulate the phase structure ... ...

Abstract	Developing high-performance cathodes with sufficient stability against CO₂ rooting in ambient atmosphere is crucial to realizing the practical application of solid-oxide fuel cells. Herein, the Mn dopant is investigated to regulate the phase structure and cathode performance of SrFeO₃₋δ perovskites through partially replacing the B-site Fe. Compared with parent SrFeO₃₋δ, Mn-doped materials, SrFe₁–ₓMnₓO₃₋δ (x = 0.05 and 0.1), show stabilized cubic perovskites at room temperature. Meanwhile, doping Mn accelerates the oxygen reduction reaction process, showing a reduced polarization resistance of 0.155 Ω·cm² at 700 °C for SrFe₀.₉₅Mn₀.₀₅O₃₋δ, which is less than 30% of SrFeO₃₋δ. In addition, the Mn dopant improves the chemical oxygen surface exchange and bulk diffusion coefficients. Furthermore, Mn enhances the tolerance toward CO₂ corrosion in various CO₂ atmospheres. Density functional theory calculations also reveal that Mn can strengthen the structural stability and increase the activity for the oxygen reduction reaction.
Keywords	ambient temperature ; carbon dioxide ; catalytic activity ; cathodes ; corrosion ; density functional theory ; electrochemistry ; oxygen ; phase transition
Language	English
Dates of publication	2022-0406
Size	p. 17358-17368.
Publishing place	American Chemical Society
Document type	Article
ISSN	1944-8252
DOI	10.1021/acsami.2c01339
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Cancer cell membrane-coated C-TiO

Ning, Shipeng / Dai, Xingliang / Tang, Weiwei / Guo, Qinglong / Lyu, Meng / Zhu, Daoming / Zhang, Wei / Qian, Haisheng / Yao, Xiaxi / Wang, Xianwen

Acta biomaterialia

2022 Volume 152, Page(s) 562–574

Abstract: Sonodynamic therapy (SDT) is a promising strategy for tumor treatment that satisfies all requirements of penetrating deep-seated tissues without causing additional trauma. However, the hypoxic tumor microenvironment impairs the therapeutic effect of SDT. ...

Abstract	Sonodynamic therapy (SDT) is a promising strategy for tumor treatment that satisfies all requirements of penetrating deep-seated tissues without causing additional trauma. However, the hypoxic tumor microenvironment impairs the therapeutic effect of SDT. The synergistic treatment of oxygen concentration-dependent SDT and bio-reductive therapy has been proven to be an effective approach to improve the therapeutic efficiency of SDT by exploiting tumor hypoxia. Herein, a biomimetic drug delivery system (C-TiO
MeSH term(s)	Animals ; Cell Line, Tumor ; Cell Membrane/metabolism ; Drug Carriers/metabolism ; Hypoxia ; Mice ; Nanoshells ; Neoplasms/drug therapy ; Neoplasms/metabolism ; Oxygen/metabolism ; Reactive Oxygen Species/metabolism ; Tirapazamine/metabolism ; Tirapazamine/pharmacology ; Titanium ; Ultrasonic Therapy
Chemical Substances	Drug Carriers ; Reactive Oxygen Species ; titanium dioxide (15FIX9V2JP) ; Tirapazamine (1UD32YR59G) ; Titanium (D1JT611TNE) ; Oxygen (S88TT14065)
Language	English
Publishing date	2022-09-05
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2173841-5
ISSN	1878-7568 ; 1742-7061
ISSN (online)	1878-7568
ISSN	1742-7061
DOI	10.1016/j.actbio.2022.08.067
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Article: A Novel CO Methanation Catalyst System Based on Acid-Etched Natural Halloysites as Supports

Xu, Bowen / Meng, Xin / Xin, Zhong / Gao, Wenli / Yang, Dandan / Jin, Daoming / Zhao, Rui / Dai, Wenhua

Industrial & engineering chemistry process design and development. 2022 Aug. 29, v. 61, no. 36

2022

Abstract: A series of nickel-based catalysts supported on natural nano-mesoporous material halloysite nanotubes were prepared by the incipient-wetness impregnation method. The methanation activity of the catalysts was tested in a fixed-bed reactor. The catalysts ... ...

Abstract	A series of nickel-based catalysts supported on natural nano-mesoporous material halloysite nanotubes were prepared by the incipient-wetness impregnation method. The methanation activity of the catalysts was tested in a fixed-bed reactor. The catalysts were characterized by transmission electron microscopy, scanning electron microscopy, inductively coupled plasma-atomic emission spectrometry, N₂ physical adsorption, X-ray diffraction, H₂ temperature-programmed reduction, CO temperature-programmed desorption, and H₂-pulse chemisorption. Acid etching increased the inner diameter of the halloysite nanotubes and precisely regulated the pore structures of the supports, which made more active metals Ni enter the pores. The dispersion of the active component Ni was promoted and the particle size decreased, thus improving the activity of the catalysts. The acid-etched halloysites with a 10 wt % nickel loading showed the best catalytic activity and good stability with a high CO conversion of 100% and a CH₄ yield of 97.9% at 350 °C with a 3:1 molar ratio of H₂ to CO under 0.1 MPa and 15,000 mL·g–¹·h–¹. Acid-etched halloysites provide a possibility for natural nano-mesoporous materials to be used as methanation catalyst supports.
Keywords	X-ray diffraction ; adsorption ; catalysts ; catalytic activity ; desorption ; halloysite ; methane production ; nanotubes ; nickel ; particle size ; process design ; spectroscopy ; transmission electron microscopy
Language	English
Dates of publication	2022-0829
Size	p. 13328-13340.
Publishing place	American Chemical Society
Document type	Article
ZDB-ID	1484436-9
ISSN	1520-5045 ; 0888-5885
ISSN (online)	1520-5045
ISSN	0888-5885
DOI	10.1021/acs.iecr.2c01366
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Article ; Online: Stability and Complexity Analysis of a Dual-Channel Closed-Loop Supply Chain with Delayed Decision under Government Intervention

Daoming Dai / Fengshan Si / Jing Wang

Entropy, Vol 19, Iss 11, p

2017 Volume 577

Abstract: This paper constructs a continuous dual-channel closed-loop supply chain (DCLSC) model with delayed decision under government intervention. The existence conditions of the local stability of the equilibrium point are discussed. We analyze the influence ... ...

Abstract	This paper constructs a continuous dual-channel closed-loop supply chain (DCLSC) model with delayed decision under government intervention. The existence conditions of the local stability of the equilibrium point are discussed. We analyze the influence of delay parameters, the adjustment speed of wholesale price, recovery rate of waste products, direct price, carbon quota subsidy, and carbon tax on the stability and complexity of model by using bifurcation diagram, entropy diagram, attractor, and time series diagram and so on. Besides, the delay feedback control method is adopted to control the unstable or chaotic system effectively. The main conclusions of this paper show that the variables mentioned above must be within a reasonable range. Otherwise, the model will lose stability or enter chaos. The government can effectively adjust manufacturers' profit through carbon tax and carbon quota subsidy, and encourage manufacturers to reduce carbon emissions and increase the remanufacturing of waste products.
Keywords	dual-channel closed-loop supply chain ; government intervention ; delayed decision ; entropy ; stability ; complexity ; Science ; Q ; Astrophysics ; QB460-466 ; Physics ; QC1-999
Subject code	330
Language	English
Publishing date	2017-10-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Effect of Precursors of Fe-Based Fischer–Tropsch Catalysts Supported on Expanded Graphite for CO₂ Hydrogenation

Zhao, Rui / Meng, Xin / Yin, Qiangfeng / Gao, Wenli / Dai, Wenhua / Jin, Daoming / Xu, Bowen / Xin, Zhong

ACS sustainable chemistry & engineering. 2021 Nov. 05, v. 9, no. 46

2021

Abstract: Expanded graphite as a type of hydrophobic functional carbon material was innovatively selected as support for Fe-based Fischer–Tropsch catalysts. Through catalytic activity evaluation, ferric ammonium citrate was selected as the most suitable iron ... ...

Abstract	Expanded graphite as a type of hydrophobic functional carbon material was innovatively selected as support for Fe-based Fischer–Tropsch catalysts. Through catalytic activity evaluation, ferric ammonium citrate was selected as the most suitable iron precursor for expanded graphite among ferric nitrate, ferric ammonium oxalate, ferric citrate, and ferric ammonium citrate. The catalyst with ferric ammonium citrate as the precursor and expanded graphite as support achieved the best CO₂ hydrogenation performance with a CO₂ conversion rate of 42.4%, a C₂═–C₄═ yield of 14.8%, and a CO selectivity of 8.3%. Furthermore, it was observed that the precursor that had better wettability and formed hydrogen bonds with support tended to generate smaller iron nanoparticles. In addition, nitrogen doping during catalyst calcination would cause differences in electronic properties and then influence the reducibility and carbonization of iron species.
Keywords	ammonium ; ammonium oxalate ; carbon dioxide ; carbonization ; catalysts ; catalytic activity ; citrates ; graphene ; green chemistry ; hydrogen ; hydrogenation ; hydrophobicity ; nitrates ; nitrogen ; wettability
Language	English
Dates of publication	2021-1105
Size	p. 15545-15556.
Publishing place	American Chemical Society
Document type	Article
ISSN	2168-0485
DOI	10.1021/acssuschemeng.1c05609
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Article ; Online: Nanosensitizers for sonodynamic therapy for glioblastoma multiforme: current progress and future perspectives.

Guo, Qing-Long / Dai, Xing-Liang / Yin, Meng-Yuan / Cheng, Hong-Wei / Qian, Hai-Sheng / Wang, Hua / Zhu, Dao-Ming / Wang, Xian-Wen

Military Medical Research

2022 Volume 9, Issue 1, Page(s) 26

Abstract: Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor, and it is associated with poor prognosis. Its characteristics of being highly invasive and undergoing heterogeneous genetic mutation, as well as the presence of the blood- ... ...

Abstract	Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor, and it is associated with poor prognosis. Its characteristics of being highly invasive and undergoing heterogeneous genetic mutation, as well as the presence of the blood-brain barrier (BBB), have reduced the efficacy of GBM treatment. The emergence of a novel therapeutic method, namely, sonodynamic therapy (SDT), provides a promising strategy for eradicating tumors via activated sonosensitizers coupled with low-intensity ultrasound. SDT can provide tumor killing effects for deep-seated tumors, such as brain tumors. However, conventional sonosensitizers cannot effectively reach the tumor region and kill additional tumor cells, especially brain tumor cells. Efforts should be made to develop a method to help therapeutic agents pass through the BBB and accumulate in brain tumors. With the development of novel multifunctional nanosensitizers and newly emerging combination strategies, the killing ability and selectivity of SDT have greatly improved and are accompanied with fewer side effects. In this review, we systematically summarize the findings of previous studies on SDT for GBM, with a focus on recent developments and promising directions for future research.
MeSH term(s)	Brain Neoplasms/drug therapy ; Brain Neoplasms/pathology ; Glioblastoma/therapy ; Humans ; Ultrasonic Therapy/methods ; Ultrasonography
Language	English
Publishing date	2022-06-09
Publishing country	England
Document type	Journal Article ; Review ; Research Support, Non-U.S. Gov't
ZDB-ID	2768940-2
ISSN	2054-9369 ; 2054-9369
ISSN (online)	2054-9369
ISSN	2054-9369
DOI	10.1186/s40779-022-00386-z
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Article ; Online: Nanosensitizers for sonodynamic therapy for glioblastoma multiforme

Qing-Long Guo / Xing-Liang Dai / Meng-Yuan Yin / Hong-Wei Cheng / Hai-Sheng Qian / Hua Wang / Dao-Ming Zhu / Xian-Wen Wang

Military Medical Research, Vol 9, Iss 1, Pp 1-

current progress and future perspectives

2022 Volume 18

Abstract: Abstract Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor, and it is associated with poor prognosis. Its characteristics of being highly invasive and undergoing heterogeneous genetic mutation, as well as the presence of the ... ...

Abstract	Abstract Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor, and it is associated with poor prognosis. Its characteristics of being highly invasive and undergoing heterogeneous genetic mutation, as well as the presence of the blood–brain barrier (BBB), have reduced the efficacy of GBM treatment. The emergence of a novel therapeutic method, namely, sonodynamic therapy (SDT), provides a promising strategy for eradicating tumors via activated sonosensitizers coupled with low-intensity ultrasound. SDT can provide tumor killing effects for deep-seated tumors, such as brain tumors. However, conventional sonosensitizers cannot effectively reach the tumor region and kill additional tumor cells, especially brain tumor cells. Efforts should be made to develop a method to help therapeutic agents pass through the BBB and accumulate in brain tumors. With the development of novel multifunctional nanosensitizers and newly emerging combination strategies, the killing ability and selectivity of SDT have greatly improved and are accompanied with fewer side effects. In this review, we systematically summarize the findings of previous studies on SDT for GBM, with a focus on recent developments and promising directions for future research.
Keywords	Glioblastoma multiforme (GBM) ; Blood–brain barrier (BBB) ; Sonodynamic therapy (SDT) ; Sonosensitizers ; Combination therapy ; Medicine (General) ; R5-920 ; Military Science ; U
Subject code	610
Language	English
Publishing date	2022-06-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Amiodarone Induces Overexpression of Similar to Versican b to Repress the EGFR/Gsk3b/Snail Signaling Axis during Cardiac Valve Formation of Zebrafish Embryos.

Hung-Chieh Lee / Hao-Chan Lo / Dao-Ming Lo / Mai-Yan Su / Jia-Rung Hu / Chin-Chieh Wu / Sheng-Nan Chang / Ming-Shen Dai / Chia-Ti Tsai / Huai-Jen Tsai

PLoS ONE, Vol 10, Iss 12, p e

2015 Volume 0144751

Abstract: Although Amiodarone, a class III antiarrhythmic drug, inhibits zebrafish cardiac valve formation, the detailed molecular pathway is still unclear. Here, we proved that Amiodarone acts as an upstream regulator, stimulating similar to versican b (s-vcanb) ... ...

Abstract	Although Amiodarone, a class III antiarrhythmic drug, inhibits zebrafish cardiac valve formation, the detailed molecular pathway is still unclear. Here, we proved that Amiodarone acts as an upstream regulator, stimulating similar to versican b (s-vcanb) overexpression at zebrafish embryonic heart and promoting cdh-5 overexpression by inhibiting snail1b at atrioventricular canal (AVC), thus blocking invagination of endocardial cells and, as a result, preventing the formation of cardiac valves. A closer investigation showed that an intricate set of signaling events ultimately caused the up-regulation of cdh5. In particular, we investigated the role of EGFR signaling and the activity of Gsk3b. It was found that knockdown of EGFR signaling resulted in phenotypes similar to those of Amiodarone-treated embryos. Since the reduced phosphorylation of EGFR was rescued by knockdown of s-vcanb, it was concluded that the inhibition of EGFR activity by Amiodarone is s-vcanb-dependent. Moreover, the activity of Gsk3b, a downstream effector of EGFR, was greatly increased in both Amiodarone-treated embryos and EGFR-inhibited embryos. Therefore, it was concluded that reduced EGFR signaling induced by Amiodarone treatment results in the inhibition of Snail functions through increased Gsk3b activity, which, in turn, reduces snail1b expression, leading to the up-regulation the cdh5 at the AVC, finally resulting in defective formation of valves. This signaling cascade implicates the EGFR/Gsk3b/Snail axis as the molecular basis for the inhibition of cardiac valve formation by Amiodarone.
Keywords	Medicine ; R ; Science ; Q
Subject code	616
Language	English
Publishing date	2015-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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