LIVIVO - Search results -

Search results

Result 1 - 10 of total 99584

Search options

Article ; Online: H 2 S- and Redox-State-Mediated PTP1B S-Sulfhydration in Insulin Signaling

Yu-Chin Lin / Wan-Ting Zeng / Der-Yen Lee

International Journal of Molecular Sciences, Vol 24, Iss 2898, p

2023 Volume 2898

Abstract: Because hydrogen sulfide (H 2 S) is classified as a gaseous signaling molecule, protein S ... sulfhydration is known to be one of the mechanisms by which H 2 S signals are conducted. PTP1B, a negative ... However, the level of H 2 S, GSH, and GSSG was only significantly affected by insulin and metformin in HEK293T cells ...

Abstract	Because hydrogen sulfide (H 2 S) is classified as a gaseous signaling molecule, protein S-sulfhydration is known to be one of the mechanisms by which H 2 S signals are conducted. PTP1B, a negative regulator in insulin signaling, has been found to be S-sulfhydrated at Cys215-SH to form Cys215-SSH in response to endoplasmic reticulum (ER) stress. Therefore, we aimed to understand the change in PTP1B S-sulfhydration and cellular redox homeostasis in response to insulin stimulation. We demonstrated a feasible PEG-switch method to determine the levels of PTP1B S-sulfhydration. According to the results obtained from HEK293T and MDA-MB-231 cells, insulin induced a change in PTP1B S-sulfhydration that was similar to the change in Insulin receptor substrate 1 (IRS1) phosphorylation in both cell lines. However, insulin-induced PTP1B S-sulfhydration and IRS1 phosphorylation were only significantly affected by metformin in HEK293T cells. Insulin also induced an increase in reactive oxygen species (ROS) in both cell lines. However, the level of H 2 S, GSH, and GSSG was only significantly affected by insulin and metformin in HEK293T cells. HEK293T cells maintained high levels of H 2 S and cysteine, but low levels of GSSG and GSH in general compared to MDA-MB-231 cells. From these findings, we suggest that PTP1B activity is modulated by H 2 S and redox-regulated S-sulfhydration during insulin signaling.
Keywords	H 2 S ; S-sulfhydration ; PEG-switch ; PTP1B ; insulin ; glutathione ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
Subject code	571
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Electrochemical Enabled Cascade Phosphorylation of N-H/O-H/S-H Bonds with P-H Compounds: An Efficient Access to P(O)-X Bonds.

Wang, Ruige / Dong, Xiaojuan / Zhang, Yonghong / Wang, Bin / Xia, Yu / Abdukader, Ablimit / Xue, Fei / Jin, Weiwei / Liu, Chenjiang

Chemistry (Weinheim an der Bergstrasse, Germany)

2021 Volume 27, Issue 60, Page(s) 14931–14935

Abstract: An electrochemical three component cascade phosphorylation reaction of various heteroatoms-containing nucleophiles including carbazoles, indoles, phenols, alcohols, and thiols with ... ...

Abstract	An electrochemical three component cascade phosphorylation reaction of various heteroatoms-containing nucleophiles including carbazoles, indoles, phenols, alcohols, and thiols with Ph
MeSH term(s)	Alcohols ; Oxygen ; Phosphorylation ; Sulfhydryl Compounds ; Water
Chemical Substances	Alcohols ; Sulfhydryl Compounds ; Water (059QF0KO0R) ; Oxygen (S88TT14065)
Language	English
Publishing date	2021-10-04
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1478547-X
ISSN	1521-3765 ; 0947-6539
ISSN (online)	1521-3765
ISSN	0947-6539
DOI	10.1002/chem.202102262
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Details ▾
- Full text online
- Order with fees

Article ; Online: Novel Hydrogen Sulfide (H 2 S)-Releasing BW-HS-101 and Its Non-H 2 S Releasing Derivative in Modulation of Microscopic and Molecular Parameters of Gastric Mucosal Barrier

Dominik Bakalarz / Edyta Korbut / Zhengnan Yuan / Bingchen Yu / Dagmara Wójcik / Aleksandra Danielak / Katarzyna Magierowska / Slawomir Kwiecień / Tomasz Brzozowski / Monika Marcinkowska / Binghe Wang / Marcin Magierowski

International Journal of Molecular Sciences, Vol 22, Iss 5211, p

2021 Volume 5211

Abstract: ... prodrug, BW-HS-101 with the ability to release H 2 S in a controllable manner, prevents gastric mucosa ... to release H 2 S, BW-iHS-101 prior to ASA administration (125 mg/kg, intragastrically). BW-HS-101 was ... Hydrogen sulfide (H 2 S) is an endogenously produced molecule with anti-inflammatory and ...

Abstract	Hydrogen sulfide (H 2 S) is an endogenously produced molecule with anti-inflammatory and cytoprotective properties. We aimed to investigate for the first time if a novel, esterase-sensitive H 2 S-prodrug, BW-HS-101 with the ability to release H 2 S in a controllable manner, prevents gastric mucosa against acetylsalicylic acid-induced gastropathy on microscopic and molecular levels. Wistar rats were pretreated intragastrically with vehicle, BW-HS-101 (0.5–50 μmol/kg) or its analogue without the ability to release H 2 S, BW-iHS-101 prior to ASA administration (125 mg/kg, intragastrically). BW-HS-101 was administered alone or in combination with nitroarginine (L-NNA, 20 mg/kg, intraperitoneally) or zinc protoporphyrin IX (10 mg/kg, intraperitoneally). Gastroprotective effects of BW-HS-101 were additionally evaluated against necrotic damage induced by intragastrical administration of 75% ethanol. Gastric mucosal damage was assessed microscopically, and gastric blood flow was determined by laser flowmetry. Gastric mucosal DNA oxidation and PGE 2 concentration were assessed by ELISA. Serum and/or gastric protein concentrations of IL-1α, IL-1β, IL-2, IL-4, IL-6, IL-10, IL-13, VEGF, GM-CSF, IFN-γ, TNF-α, and EGF were determined by a microbeads/fluorescent-based multiplex assay. Changes in gastric mucosal iNOS, HMOX-1, SOCS3, IL1-R1, IL1-R2, TNF-R2, COX-1, and COX-2 mRNA were assessed by real-time PCR. BW-HS-101 or BW-iHS-101 applied at a dose of 50 μmol/kg protected gastric mucosa against ASA-induced gastric damage and prevented a decrease in the gastric blood flow level. H 2 S prodrug decreased DNA oxidation, systemic and gastric mucosal inflammation with accompanied upregulation of SOCS3, and EGF and HMOX-1 expression. Pharmacological inhibition of nitric oxide (NO) synthase but not carbon monoxide (CO)/heme oxygenase (HMOX) activity by L-NNA or ZnPP, respectively, reversed the gastroprotective effect of BW-HS-101. BW-HS-101 also protected against ethanol-induced gastric injury formation. We conclude that BW-HS-101, ...
Keywords	hydrogen sulfide prodrugs ; BW-HS-101 ; non-steroidal anti-inflammatory drugs ; gastrotoxicity ; molecular gastroenterology ; gastrointestinal pharmacology ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
Subject code	500
Language	English
Publishing date	2021-05-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Oxygen Vacancy-Mediated Selective H 2 S Oxidation over Co-Doped LaFe x Co 1−x O 3 Perovskite

Xinlei Yu / Xun Tao / Yunfei Gao / Lu Ding / Yanqin Wang / Guangsuo Yu / Fuchen Wang

Catalysts, Vol 12, Iss 236, p

2022 Volume 236

Abstract: Compared to the Claus process, selective H 2 S catalytic oxidation to sulfur is a promising ... reaction, as it is not subject to thermodynamic limitations and could theoretically achieve ~100% H 2 S ... on H 2 S selective catalytic oxidation. A series of LaFe x Co 1−x O 3 (x = 0, 0.2, 0.4, 0.6, 0.8, 1.0 ...

Abstract	Compared to the Claus process, selective H 2 S catalytic oxidation to sulfur is a promising reaction, as it is not subject to thermodynamic limitations and could theoretically achieve ~100% H 2 S conversion to sulfur. In this study, we investigated the effects of Co and Fe co-doping in ABO 3 perovskite on H 2 S selective catalytic oxidation. A series of LaFe x Co 1−x O 3 (x = 0, 0.2, 0.4, 0.6, 0.8, 1.0) perovskites were synthesized by the sol-gel method. Compared to LaFeO 3 and LaCoO 3 , co-doped LaFe x Co 1−x O 3 significantly improved the H 2 S conversion and sulfur selectivity at a lower reaction temperature. Nearly 100% sulfur yield was achieved on LaFe 0.4 Co 0.6 O 3 under 220 °C with exceptional catalyst stability (above 95% sulfur yield after 77 h). The catalysts were characterized by XRD, BET, FTIR, XPS, and H 2 -TPR. The characterization results showed that the structure of LaFe x Co 1−x O 3 changed from the rhombic phase of LaCoO 3 to the cubic phase of LaFeO 3 with Fe substitution. Doping with appropriate iron (x = 0.4) facilitates the reduction of Co ions in the catalyst, thereby promoting the H 2 S selective oxidation. This study demonstrates a promising approach for low-temperature H 2 S combustion with ~100% sulfur yield.
Keywords	hydrogen sulfide ; selective oxidation ; perovskite oxides ; oxygen vacancy ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
Subject code	290
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: AZO-Based ZnO Nanosheet MEMS Sensor with Different Al Concentrations for Enhanced H 2 S Gas Sensing

Yempati Nagarjuna / Jun-Cong Lin / Sheng-Chang Wang / Wen-Tse Hsiao / Yu-Jen Hsiao

Nanomaterials, Vol 11, Iss 3377, p

2021 Volume 3377

Abstract: The properties of H 2 S gas sensing were investigated using a ZnO nanostructure prepared with AZO ... the optimal conditions for H 2 S gas sensing, different ZnO growth times and different temperatures were ... with AZO and 40 nm Al recorded an 8.5% H 2 S gas-sensing response at a 200 ppb gas concentration and a 14 ...

Abstract	The properties of H 2 S gas sensing were investigated using a ZnO nanostructure prepared with AZO (zinc oxide with aluminium) and Al surfaces which were developed on a MEMS (Micro Electromechanical System) device. Hydrothermal synthesis was implemented for the deposition of the ZnO nanostructure. To find the optimal conditions for H 2 S gas sensing, different ZnO growth times and different temperatures were considered and tested, and the results were analysed. At 250 °C and 90 min growth time, a ZnO sensor prepared with AZO and 40 nm Al recorded an 8.5% H 2 S gas-sensing response at a 200 ppb gas concentration and a 14% sensing response at a gas concentration of 1000 ppb. The dominant sensing response provided the optimal conditions for the ZnO sensor, which were 250 °C temperature and 90 min growth time. Gas sensor selectivity was tested with five different gases (CO, SO 2 , NO 2 , NH 3 and H 2 S) and the sensor showed great selectivity towards H 2 S gas.
Keywords	H 2 S gas sensing ; ZnO nanostructure ; MEMS device ; AZO ; gas selectivity ; Chemistry ; QD1-999
Subject code	600
Language	English
Publishing date	2021-12-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Observation of Directed Flow of Hypernuclei _{Λ}^{3}H and _{Λ}^{4}H in sqrt[s_{NN}]=3 GeV Au+Au Collisions at RHIC.

Aboona, B E / Adam, J / Adams, J R / Agakishiev, G / Aggarwal, I / Aggarwal, M M / Ahammed, Z / Aitbaev, A / Alekseev, I / Anderson, D M / Aparin, A / Atchison, J / Averichev, G S / Bairathi, V / Baker, W / Ball Cap, J G / Barish, K / Bhagat, P / Bhasin, A /

Bhatta, S / Bordyuzhin, I G / Brandenburg, J D / Brandin, A V / Cai, X Z / Caines, H / Calderón de la Barca Sánchez, M / Cebra, D / Ceska, J / Chakaberia, I / Chan, B K / Chang, Z / Chen, D / Chen, J / Chen, J H / Chen, Z / Cheng, J / Cheng, Y / Choudhury, S / Christie, W / Chu, X / Crawford, H J / Dale-Gau, G / Das, A / Daugherity, M / Dedovich, T G / Deppner, I M / Derevschikov, A A / Dhamija, A / Di Carlo, L / Didenko, L / Dixit, P / Dong, X / Drachenberg, J L / Duckworth, E / Dunlop, J C / Engelage, J / Eppley, G / Esumi, S / Evdokimov, O / Ewigleben, A / Eyser, O / Fatemi, R / Fazio, S / Feng, C J / Feng, Y / Finch, E / Fisyak, Y / Flor, F A / Fu, C / Geurts, F / Ghimire, N / Gibson, A / Gopal, K / Gou, X / Grosnick, D / Gupta, A / Hamed, A / Han, Y / Harasty, M D / Harris, J W / Harrison, H / He, W / He, X H / He, Y / Hu, C / Hu, Q / Hu, Y / Huang, H / Huang, H Z / Huang, S L / Huang, T / Huang, X / Huang, Y / Humanic, T J / Isenhower, D / Isshiki, M / Jacobs, W W / Jalotra, A / Jena, C / Ji, Y / Jia, J / Jin, C / Ju, X / Judd, E G / Kabana, S / Kabir, M L / Kalinkin, D / Kang, K / Kapukchyan, D / Kauder, K / Ke, H W / Keane, D / Kechechyan, A / Kelsey, M / Kimelman, B / Kiselev, A / Knospe, A G / Ko, H S / Kochenda, L / Korobitsin, A A / Kravtsov, P / Kumar, L / Kumar, S / Kunnawalkam Elayavalli, R / Lacey, R / Landgraf, J M / Lebedev, A / Lednicky, R / Lee, J H / Leung, Y H / Lewis, N / Li, C / Li, W / Li, X / Li, Y / Li, Z / Liang, X / Liang, Y / Lin, T / Liu, C / Liu, F / Liu, H / Liu, L / Liu, T / Liu, X / Liu, Y / Liu, Z / Ljubicic, T / Llope, W J / Lomicky, O / Longacre, R S / Loyd, E / Lu, T / Lukow, N S / Luo, X F / Luong, V B / Ma, L / Ma, R / Ma, Y G / Magdy, N / Mallick, D / Margetis, S / Matis, H S / Mazer, J A / McNamara, G / Mi, K / Minaev, N G / Mohanty, B / Mooney, I / Morozov, D A / Mudrokh, A / Nagy, M I / Nain, A S / Nam, J D / Nasim, Md / Neff, D / Nelson, J M / Nemes, D B / Nie, M / Nigmatkulov, G / Niida, T / Nishitani, R / Nogach, L V / Nonaka, T / Nunes, A S / Odyniec, G / Ogawa, A / Oh, S / Okorokov, V A / Okubo, K / Page, B S / Pak, R / Pan, J / Pandav, A / Pandey, A K / Panebratsev, Y / Pani, T / Parfenov, P / Paul, A / Perkins, C / Pokhrel, B R / Posik, M / Protzman, T / Pruthi, N K / Putschke, J / Qin, Z / Qiu, H / Quintero, A / Racz, C / Radhakrishnan, S K / Raha, N / Ray, R L / Ritter, H G / Robertson, C W / Rogachevsky, O V / Rosales Aguilar, M A / Roy, D / Ruan, L / Sahoo, A K / Sahoo, N R / Sako, H / Salur, S / Samigullin, E / Sato, S / Schmidke, W B / Schmitz, N / Seger, J / Seto, R / Seyboth, P / Shah, N / Shahaliev, E / Shanmuganathan, P V / Shao, M / Shao, T / Sharma, M / Sharma, N / Sharma, R / Sharma, S R / Sheikh, A I / Shen, D Y / Shen, K / Shi, S S / Shi, Y / Shou, Q Y / Si, F / Singh, J / Singha, S / Sinha, P / Skoby, M J / Söhngen, Y / Song, Y / Srivastava, B / Stanislaus, T D S / Stewart, D J / Strikhanov, M / Stringfellow, B / Su, Y / Sun, C / Sun, X / Sun, Y / Surrow, B / Svirida, D N / Sweger, Z W / Tamis, A / Tang, A H / Tang, Z / Taranenko, A / Tarnowsky, T / Thomas, J H / Tlusty, D / Todoroki, T / Tokarev, M V / Tomkiel, C A / Trentalange, S / Tribble, R E / Tribedy, P / Tsai, O D / Tsang, C Y / Tu, Z / Ullrich, T / Underwood, D G / Upsal, I / Van Buren, G / Vasiliev, A N / Verkest, V / Videbæk, F / Vokal, S / Voloshin, S A / Wang, F / Wang, G / Wang, J S / Wang, X / Wang, Y / Wang, Z / Webb, J C / Weidenkaff, P C / Westfall, G D / Wieman, H / Wilks, G / Wissink, S W / Wu, J / Wu, X / Wu, Y / Xi, B / Xiao, Z G / Xie, W / Xu, H / Xu, N / Xu, Q H / Xu, Y / Xu, Z / Yan, G / Yan, Z / Yang, C / Yang, Q / Yang, S / Yang, Y / Ye, Z / Yi, L / Yip, K / Yu, Y / Zha, W / Zhang, C / Zhang, D / Zhang, J / Zhang, S / Zhang, X / Zhang, Y / Zhang, Z J / Zhang, Z / Zhao, F / Zhao, J / Zhao, M / Zhou, C / Zhou, J / Zhou, S / Zhou, Y / Zhu, X / Zurek, M / Zyzak, M

Physical review letters

2023 Volume 130, Issue 21, Page(s) 212301

Abstract: ... 4}H in mid-central Au+Au collisions at sqrt[s_{NN}]=3 GeV at RHIC. These data are taken as part ... We report here the first observation of directed flow (v_{1}) of the hypernuclei _{Λ}^{3}H and _{Λ ... centrality, about 8400 _{Λ}^{3}H and 5200 _{Λ}^{4}H candidates are reconstructed through two- and three-body ...

Abstract	We report here the first observation of directed flow (v_{1}) of the hypernuclei _{Λ}^{3}H and _{Λ}^{4}H in mid-central Au+Au collisions at sqrt[s_{NN}]=3 GeV at RHIC. These data are taken as part of the beam energy scan program carried out by the STAR experiment. From 165×10^{6} events in 5%-40% centrality, about 8400 _{Λ}^{3}H and 5200 _{Λ}^{4}H candidates are reconstructed through two- and three-body decay channels. We observe that these hypernuclei exhibit significant directed flow. Comparing to that of light nuclei, it is found that the midrapidity v_{1} slopes of _{Λ}^{3}H and _{Λ}^{4}H follow baryon number scaling, implying that the coalescence is the dominant mechanism for these hypernuclei production in the 3 GeV Au+Au collisions.
Language	English
Publishing date	2023-06-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.130.212301
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 4' 58/153: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Studies on Sensing Properties and Mechanism of CuO Nanoparticles to H 2 S Gas

Fang Peng / Yan Sun / Weiwei Yu / Yue Lu / Jiaming Hao / Rui Cong / Meiying Ge / Jichao Shi / Ning Dai

Nanomaterials, Vol 10, Iss 774, p

2020 Volume 774

Abstract: ... that CuO nanoparticles exhibit enhanced sensitivity and good selectivity for hydrogen sulfide (H 2 S) gas ... at a low temperature. There are two working mechanisms involved in the H 2 S sensing based on CuO nanoparticle sensors ... They are the H 2 S oxidation mechanism and the copper sulphide (CuS) formation mechanism, respectively ...

Abstract	In this work, the high crystalline copper oxide (CuO) nanoparticles were fabricated by a hydrothermal method, and their structural properties were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The sensing results show that CuO nanoparticles exhibit enhanced sensitivity and good selectivity for hydrogen sulfide (H 2 S) gas at a low temperature. There are two working mechanisms involved in the H 2 S sensing based on CuO nanoparticle sensors. They are the H 2 S oxidation mechanism and the copper sulphide (CuS) formation mechanism, respectively. The two sensing mechanisms collectively enhance the sensor’s response in the H 2 S sensing process. The Cu–S bonding is stable and cannot break spontaneously at a low temperature. Therefore, the CuS formation inhibits the sensor’s recovery process. Such inhibition gradually enhances as the gas concentration increases from 0.2 ppm to 5 ppm, and it becomes weaker as the operating temperature rises from 40 °C to 250 °C. The XPS results confirmed the CuS formation phenomenon, and the micro Raman spectra demonstrated that the formation of CuS bonding and its decomposition can be effectively triggered by a thermal effect. Gas-sensing mechanism analysis supplied abundant cognition for the H 2 S sensing phenomena based on CuO materials.
Keywords	CuO ; H 2 S ; mechanism ; oxidation ; CuS formation ; Chemistry ; QD1-999
Subject code	669
Language	English
Publishing date	2020-04-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Gas Sensing Performance and Mechanism of CuO( p )-WO 3 ( n ) Composites to H 2 S Gas

Fang Peng / Yan Sun / Weiwei Yu / Yue Lu / Jiaming Hao / Rui Cong / Jichao Shi / Meiying Ge / Ning Dai

Nanomaterials, Vol 10, Iss 1162, p

2020 Volume 1162

Abstract: ... composites was systematically studied for hydrogen sulfide (H 2 S) sensing. The response of CuO/WO 3 ... 5 to 20 ppm H 2 S gas at 40 °C. Once the temperature rises from 40 °C to 250 °C, the CuO/WO 3 (1:1 ... response to n -type response, because the increased temperature facilitates the Cu-S bonds break and ...

Abstract	In this work, the compositional optimization in copper oxide/tungsten trioxide (CuO/WO 3 ) composites was systematically studied for hydrogen sulfide (H 2 S) sensing. The response of CuO/WO 3 composites changes from p -type to n -type as the CuO content decreases. Furthermore, the p -type response weakens while the n -type response strengthens as the Cu/W molar ratio decreases from 1:0 to 1:10. The optimal Cu/W molar ratio is 1:10, at which the sensor presents the ultrahigh n -type response of 1.19 × 10 5 to 20 ppm H 2 S gas at 40 °C. Once the temperature rises from 40 °C to 250 °C, the CuO/WO 3 (1:1) sensor presents the p - n response transformation, and the CuO/WO 3 (1:1.5) sensor changes from no response to n -type response, because the increased temperature facilitates the Cu-S bonds break and weakens the p -type CuO contribution to the total response, such that the CuS bond decomposition by a thermal effect was verified by a Raman analysis. In addition, with a decrease in CuO content, the CuO is transformed from partly to completely converting to CuS, causing the resistance of CuO to decrease from increasing and, hence, a weakening mode of p -CuO and n -WO 3 to the total response turns to a synergistic mode to it.
Keywords	CuO/WO 3 ; CuS formation ; H 2 S ; n - p type ; molar ratio ; weakening mode ; Chemistry ; QD1-999
Subject code	290
Language	English
Publishing date	2020-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Influences of Work Function Changes in NO 2 and H 2 S Adsorption on Pd-Doped ZnGa 2 O 4 (111) Thin Films

Jen-Chuan Tung / Ding-Yuan Wang / Yu-Hsuan Chen / Po-Liang Liu

Applied Sciences, Vol 11, Iss 5259, p

First-Principles Studies

2021 Volume 5259

Abstract: The work function variations of NO 2 and H 2 S molecules on Pd-adsorbed ZnGa 2 O 4 (111) were ... to a Pd atom, the maximum work function change was +2.37 eV. For H 2 S adsorption, the maximum work ... function change was reduced from −0.90 eV to −1.82 eV for bonding sulfur atoms from a single and two H 2 S ...

Abstract	The work function variations of NO 2 and H 2 S molecules on Pd-adsorbed ZnGa 2 O 4 (111) were calculated using first-principle calculations. For the bonding of a nitrogen atom from a single NO 2 molecule to a Pd atom, the maximum work function change was +1.37 eV, and for the bonding of two NO 2 molecules to a Pd atom, the maximum work function change was +2.37 eV. For H 2 S adsorption, the maximum work function change was reduced from −0.90 eV to −1.82 eV for bonding sulfur atoms from a single and two H 2 S molecules to a Pd atom, respectively. Thus, for both NO 2 and H 2 S, the work function change increased with an increase in gas concentration, showing that Pd-decorated ZnGa 2 O 4 (111) is a suitable material in NO 2 /H 2 S gas detectors.
Keywords	first-principles calculation ; Pd-doped ZnGa 2 O 4 ; gas sensor ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
Subject code	290
Language	English
Publishing date	2021-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: S-Scheme Heterojunction Photocatalysts for H

Wang, Linxi / Sun, Jian / Cheng, Bei / He, Rongan / Yu, Jiaguo

The journal of physical chemistry letters

2023 Volume 14, Issue 20, Page(s) 4803–4814

Abstract: Photocatalysis opens a new door to H ...

Abstract	Photocatalysis opens a new door to H
Language	English
Publishing date	2023-05-16
Publishing country	United States
Document type	Journal Article ; Review
ISSN	1948-7185
ISSN (online)	1948-7185
DOI	10.1021/acs.jpclett.3c00811
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

Full text online

More links

Kategorien

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED