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Vlocskó RB, Xie G, Török B. Green Synthesis of Aromatic Nitrogen-Containing Heterocycles by Catalytic and Non-Traditional Activation Methods. Molecules 2023; 28:molecules28104153. [PMID: 37241894 DOI: 10.3390/molecules28104153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Recent advances in the environmentally benign synthesis of aromatic N-heterocycles are reviewed, focusing primarily on the application of catalytic methods and non-traditional activation. This account features two main parts: the preparation of single ring N-heterocycles, and their condensed analogs. Both groups include compounds with one, two and more N-atoms. Due to the large number of protocols, this account focuses on providing representative examples to feature the available methods.
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Affiliation(s)
- R Bernadett Vlocskó
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Guoshu Xie
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Béla Török
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
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Santos AL, Beckham JL, Liu D, Li G, van Venrooy A, Oliver A, Tegos GP, Tour JM. Visible-Light-Activated Molecular Machines Kill Fungi by Necrosis Following Mitochondrial Dysfunction and Calcium Overload. Adv Sci (Weinh) 2023; 10:e2205781. [PMID: 36715588 PMCID: PMC10074111 DOI: 10.1002/advs.202205781] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/09/2022] [Indexed: 06/18/2023]
Abstract
Invasive fungal infections are a growing public health threat. As fungi become increasingly resistant to existing drugs, new antifungals are urgently needed. Here, it is reported that 405-nm-visible-light-activated synthetic molecular machines (MMs) eliminate planktonic and biofilm fungal populations more effectively than conventional antifungals without resistance development. Mechanism-of-action studies show that MMs bind to fungal mitochondrial phospholipids. Upon visible light activation, rapid unidirectional drilling of MMs at ≈3 million cycles per second (MHz) results in mitochondrial dysfunction, calcium overload, and ultimately necrosis. Besides their direct antifungal effect, MMs synergize with conventional antifungals by impairing the activity of energy-dependent efflux pumps. Finally, MMs potentiate standard antifungals both in vivo and in an ex vivo porcine model of onychomycosis, reducing the fungal burden associated with infection.
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Affiliation(s)
- Ana L. Santos
- Department of ChemistryRice UniversityHoustonTX77005USA
- IdISBA – Fundación de Investigación Sanitaria de las Islas BalearesPalma07120Spain
| | | | - Dongdong Liu
- Department of ChemistryRice UniversityHoustonTX77005USA
| | - Gang Li
- Department of ChemistryRice UniversityHoustonTX77005USA
| | | | - Antonio Oliver
- IdISBA – Fundación de Investigación Sanitaria de las Islas BalearesPalma07120Spain
- Servicio de MicrobiologiaHospital Universitari Son EspasesPalma07120Spain
| | - George P. Tegos
- Office of ResearchReading HospitalTower Health, 420 S. Fifth AvenueWest ReadingPA19611USA
| | - James M. Tour
- Department of ChemistryRice UniversityHoustonTX77005USA
- Smalley‐Curl InstituteRice UniversityHoustonTX77005USA
- Department of Materials Science and NanoEngineeringRice UniversityHoustonTX77005USA
- NanoCarbon Center and the Welch Institute for Advanced MaterialsRice UniversityHoustonTX77005USA
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Eom TH, Cho SH, Suh JM, Kim T, Yang JW, Lee TH, Jun SE, Kim SJ, Lee J, Hong SH, Jang HW. Visible Light Driven Ultrasensitive and Selective NO 2 Detection in Tin Oxide Nanoparticles with Sulfur Doping Assisted by l-Cysteine. Small 2022; 18:e2106613. [PMID: 35060312 DOI: 10.1002/smll.202106613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/18/2021] [Indexed: 06/14/2023]
Abstract
In the pandemic era, the development of high-performance indoor air quality monitoring sensors has become more critical than ever. NO2 is one of the most toxic gases in daily life, which induces severe respiratory diseases. Thus, the real-time monitoring of low concentrations of NO2 is highly required. Herein, a visible light-driven ultrasensitive and selective chemoresistive NO2 sensor is presented based on sulfur-doped SnO2 nanoparticles. Sulfur-doped SnO2 nanoparticles are synthesized by incorporating l-cysteine as a sulfur doping agent, which also increases the surface area. The cationic and anionic doping of sulfur induces the formation of intermediate states in the band gap, highly contributing to the substantial enhancement of gas sensing performance under visible light illumination. Extraordinary gas sensing performances such as the gas response of 418 to 5 ppm of NO2 and a detection limit of 0.9 ppt are achieved under blue light illumination. Even under red light illumination, sulfur-doped SnO2 nanoparticles exhibit stable gas sensing. The endurance to humidity and long-term stability of the sensor are outstanding, which amplify the capability as an indoor air quality monitoring sensor. Overall, this study suggests an innovative strategy for developing the next generation of electronic noses.
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Affiliation(s)
- Tae Hoon Eom
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sung Hwan Cho
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jun Min Suh
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Taehoon Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jin Wook Yang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Tae Hyung Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang Eon Jun
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seung Ju Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jongwon Lee
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seong-Hyeon Hong
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
- Advanced Institute of Convergence Technology, Seoul National University, Suwon, 16229, Republic of Korea
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Casals O, Šutka A, Granz T, Waag A, Wasisto HS, Daniel Prades J, Fàbrega C. Visible Light-Driven p-Type Semiconductor Gas Sensors Based on CaFe 2O 4 Nanoparticles. Sensors (Basel) 2020; 20:s20030850. [PMID: 32033470 PMCID: PMC7038740 DOI: 10.3390/s20030850] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 01/24/2023]
Abstract
In this work, we present conductometric gas sensors based on p-type calcium iron oxide (CaFe2O4) nanoparticles. CaFe2O4 is a metal oxide (MOx) with a bandgap around 1.9 eV making it a suitable candidate for visible light-activated gas sensors. Our gas sensors were tested under a reducing gas (i.e., ethanol) by illuminating them with different light-emitting diode (LED) wavelengths (i.e., 465–640 nm). Regardless of their inferior response compared to the thermally activated counterparts, the developed sensors have shown their ability to detect ethanol down to 100 ppm in a reversible way and solely with the energy provided by an LED. The highest response was reached using a blue LED (465 nm) activation. Despite some responses found even in dark conditions, it was demonstrated that upon illumination the recovery after the ethanol exposure was improved, showing that the energy provided by the LEDs is sufficient to activate the desorption process between the ethanol and the CaFe2O4 surface.
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Affiliation(s)
- Olga Casals
- MIND-IN2UB, Department of Electronic and Biomedical Engineering, Universitat de Barcelona, 08028 Barcelona, Spain;
| | - Andris Šutka
- Research Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 1048 Riga, Latvia;
| | - Tony Granz
- Institute of Semiconductor Technology (IHT) and Laboratory for Emerging Nanometrology (LENA), Technische Universität Braunschweig, 38106 Braunschweig, Germany; (T.G.); (A.W.); (H.S.W.)
| | - Andreas Waag
- Institute of Semiconductor Technology (IHT) and Laboratory for Emerging Nanometrology (LENA), Technische Universität Braunschweig, 38106 Braunschweig, Germany; (T.G.); (A.W.); (H.S.W.)
| | - Hutomo Suryo Wasisto
- Institute of Semiconductor Technology (IHT) and Laboratory for Emerging Nanometrology (LENA), Technische Universität Braunschweig, 38106 Braunschweig, Germany; (T.G.); (A.W.); (H.S.W.)
| | - Joan Daniel Prades
- MIND-IN2UB, Department of Electronic and Biomedical Engineering, Universitat de Barcelona, 08028 Barcelona, Spain;
- Correspondence: (Q.); (J.D.P.); (C.F.); Tel.: +34-934-039-159 (Q.)
| | - Cristian Fàbrega
- MIND-IN2UB, Department of Electronic and Biomedical Engineering, Universitat de Barcelona, 08028 Barcelona, Spain;
- Correspondence: (Q.); (J.D.P.); (C.F.); Tel.: +34-934-039-159 (Q.)
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Nasriddinov A, Rumyantseva M, Shatalova T, Tokarev S, Yaltseva P, Fedorova O, Khmelevsky N, Gaskov A. Organic-Inorganic Hybrid Materials for Room Temperature Light-Activated Sub-ppm NO Detection. Nanomaterials (Basel) 2019; 10:E70. [PMID: 31905665 PMCID: PMC7023258 DOI: 10.3390/nano10010070] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 12/16/2019] [Accepted: 12/24/2019] [Indexed: 11/30/2022]
Abstract
Nitric oxide (NO) is one of the main environmental pollutants and one of the biomarkers noninvasive diagnosis of respiratory diseases. Organic-inorganic hybrids based on heterocyclic Ru (II) complex and nanocrystalline semiconductor oxides SnO2 and In2O3 were studied as sensitive materials for NO detection at room temperature under periodic blue light (λmax = 470 nm) illumination. The semiconductor matrixes were obtained by chemical precipitation with subsequent thermal annealing and characterized by XRD, Raman spectroscopy, and single-point BET methods. The heterocyclic Ru (II) complex was synthesized for the first time and characterized by 1H NMR, 13C NMR, MALDI-TOF mass spectrometry and elemental analysis. The HOMO and LUMO energies of the Ru (II) complex are calculated from cyclic voltammetry data. The thermal stability of hybrids was investigated by thermogravimetric analysis (TGA)-MS analysis. The optical properties of Ru (II) complex, nanocrystalline oxides and hybrids were studied by UV-Vis spectroscopy in transmission and diffuse reflectance modes. DRIFT spectroscopy was performed to investigate the interaction between NO and the surface of the synthesized materials. Sensor measurements demonstrate that hybrid materials are able to detect NO at room temperature in the concentration range of 0.25-4.0 ppm with the detection limit of 69-88 ppb.
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Affiliation(s)
- Abulkosim Nasriddinov
- Chemistry Department, Moscow State University, Moscow 119991, Russia; (A.N.); (T.S.); (S.T.); (P.Y.); (O.F.); (A.G.)
- Faculty of Materials Science, Moscow State University, Moscow 119991, Russia
| | - Marina Rumyantseva
- Chemistry Department, Moscow State University, Moscow 119991, Russia; (A.N.); (T.S.); (S.T.); (P.Y.); (O.F.); (A.G.)
| | - Tatyana Shatalova
- Chemistry Department, Moscow State University, Moscow 119991, Russia; (A.N.); (T.S.); (S.T.); (P.Y.); (O.F.); (A.G.)
| | - Sergey Tokarev
- Chemistry Department, Moscow State University, Moscow 119991, Russia; (A.N.); (T.S.); (S.T.); (P.Y.); (O.F.); (A.G.)
- A.N. Nesmeyanov Institute of Organoelement Compounds RAS, Moscow 119991, Russia
| | - Polina Yaltseva
- Chemistry Department, Moscow State University, Moscow 119991, Russia; (A.N.); (T.S.); (S.T.); (P.Y.); (O.F.); (A.G.)
| | - Olga Fedorova
- Chemistry Department, Moscow State University, Moscow 119991, Russia; (A.N.); (T.S.); (S.T.); (P.Y.); (O.F.); (A.G.)
- A.N. Nesmeyanov Institute of Organoelement Compounds RAS, Moscow 119991, Russia
| | - Nikolay Khmelevsky
- LISM, Moscow State Technological University Stankin, Moscow 127055, Russia;
| | - Alexander Gaskov
- Chemistry Department, Moscow State University, Moscow 119991, Russia; (A.N.); (T.S.); (S.T.); (P.Y.); (O.F.); (A.G.)
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Rumyantseva M, Nasriddinov A, Vladimirova S, Tokarev S, Fedorova O, Krylov I, Drozdov K, Baranchikov A, Gaskov A. Photosensitive Organic-Inorganic Hybrid Materials for Room Temperature Gas Sensor Applications. Nanomaterials (Basel) 2018; 8:E671. [PMID: 30158451 DOI: 10.3390/nano8090671] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/22/2018] [Accepted: 08/28/2018] [Indexed: 01/22/2023]
Abstract
In this work, the hybrids based on nanocrystalline SnO₂ or In₂O₃ semiconductor matrixes and heterocyclic Ru(II) complex are studied as materials for gas sensors operating at room temperature under photoactivation with visible light. Nanocrystalline semiconductor oxides are obtained by chemical precipitation with subsequent thermal annealing and characterized by XRD, SEM and single-point BET methods. The heterocyclic Ru(II) complex is synthesized for the first time and investigated by ¹H NMR, 13C NMR APT, MALDI-MS analysis, and UV-Vis spectroscopy. The HOMO and LUMO energies of the Ru(II) complex are calculated from cyclic voltammetry data. The hybrid materials are characterized by TGA-MS analysis and EDX mapping. The optical properties of hybrids are studied by UV-Vis spectroscopy in the diffuse reflection mode. The investigation of spectral dependencies of photoconductivity of hybrid samples demonstrates that the role of organic dye consists in shifting the photosensitivity range towards longer wavelengths. Sensor measurements demonstrate that hybrid materials are able to detect NO₂ in the concentration range of 0.25⁻2 ppm without the use of thermal heating under periodic illumination with even low-energy long-wavelength (red) light.
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