Novel H2S sensing mechanism derived from the formation of oligomeric sulfide capping the surface of gold nanourchins
Literature Information
Hana Park, Yun-Sik Nam, Ji Yeong Lee, Yeonhee Lee
A gold nanourchin (AuNU) probe with a novel sensing mechanism for monitoring H2S was developed as a feasible colorimetric sensor. In this study, AuNUs that are selectively responsive to H2S were fabricated in the presence of trisodium citrate and 1,4-hydroquinone using a seed-mediated approach. Upon exposure of the AuNU solution to H2S, the hydrosulfide ions (HS−) in the solution are converted into oligomeric sulfides by 1,4-hydroquinone used as a reducing agent during the synthesis of AuNUs. The oligomeric sulfides formed in the AuNU solution upon the addition of H2S were found to coat the surface of the AuNUs, introducing a blue shift in absorption accompanied by a color change in the solution from sky blue to light green. This colorimetric alteration by the capping of oligomeric sulfides on the surface of AuNUs is unique compared to well-known color change mechanisms, such as aggregation, etching, or growth of nanoparticles. The novel H2S sensing mechanism of the AuNUs was characterized using UV-Vis spectroscopy, high-resolution transmission microscopy, X-ray photoelectron spectroscopy, surface-enhanced Raman spectroscopy, secondary ion mass spectroscopy, liquid chromatography-tandem mass spectrometry, and atom probe tomography. H2S was reliably monitored with two calibration curves comprising two sections with different slopes according to the low (0.3–15 μM) and high (15.0–300 μM) concentration range using the optimized AuNU probe, and a detection limit of 0.29 μM was obtained in tap water.
Related Literature
IF 6.222
Sensitive and specific detection of tumour cells based on a multivalent DNA nanocreeper and a multiplexed fluorescence supersandwichIF 6.222
Selective light driven reduction of CO2 to HCOOH in water using a {MoV9}n (n = 1332–3600) based soft-oxometalate (SOM)IF 6.222
Catalytic depolymerization of Kraft lignin to produce liquid fuels via Ni–Sn metal oxide catalystsIF 6.367
Retraction: Chemical synthesis and antigenic activity of a phosphatidylinositol mannoside epitope from Mycobacterium tuberculosisIF 6.222
A robust multifunctional ligand-controlled palladium-catalyzed carbonylation reaction in waterIF 6.222
Solventless thermal crosslinked polymer protective layer for high stable lithium metal batteriesIF 6.367
Chemoproteomics-based target profiling of sinomenine reveals multiple protein regulators of inflammationIF 6.222
Milk exosomes with enhanced mucus penetrability for oral delivery of siRNAIF 6.843
Contents listIF 6.843
Source Journal
RSC Advances
Chemistry fascinates us. This discipline is integral to life and impacts so many aspects of our world. The scope for RSC Advances is wide-ranging because we want to capture any research that can offer crucial insights and advance chemistry. RSC Advances papers should provide an insight that advances the chemistry field. Papers that contain little or no chemistry and are not considered to be of interest or relevance to the chemistry community are not within the scope of the journal. The criteria for publication are that the work must be high quality, well conducted and advance the development of the field. Articles submitted to the journal are evaluated by our international team of associate editors and reviewers for the overall quality and accuracy of the science presented. Download our full list of subject categories to see the range of topics we publish in RSC Advances. Please ensure you have considered the following points before submitting your manuscript. Does the work present an advance over the existing literature? Please supply a covering letter with your submission to demonstrate how the work is advancing the field over the existing literature Have you provided sufficient evidence/data to support your conclusions? Have you provided adequate characterisation data for your materials/compounds? (Please check the supporting information section to ensure that the necessary requirements have been met and copies of relevant spectra have been provided where necessary) Are the results discussed in the context of the literature? Are the references relevant and do they appropriately reflect the existing literature?
Recommended Compounds
![697235-38-4 - Methyl (1R,2R,3S,3aR,8bS)-6-({(2S,3R,6R)-6-[(1R)-1,2-dihydroxyethyl]-3-methoxy-1,4-dioxan-2-yl}oxy)-1,8b-dihydroxy-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]
furan-2-carboxylate](/structs/697/697235-38-4-ee3a.webp "697235-38-4 - Methyl (1R,2R,3S,3aR,8bS)-6-({(2S,3R,6R)-6-[(1R)-1,2-dihydroxyethyl]-3-methoxy-1,4-dioxan-2-yl}oxy)-1,8b-dihydroxy-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]
furan-2-carboxylate")
Recommended Suppliers
Geveke Klimaattechniek bv
Wuxi Jayee Chemical Co., Ltd.Suzhou Xinghu Fine Chemical FactoryWuhan Whu Hyvan Co., Ltd.Nanjing Baje Pharmaceutical Co., Ltd.Nanjing Di Chuang Import and Export Co., Ltd.Hainan PuLi Pharmaceutical Co., Ltd.Shanghai Kain Biopharm Technology Co., Ltd.Chongqing Yuxi Medicine Technology Co., Ltd.Hu Yue Xing Instrument Co., Ltd.