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- Author:
- Wang, Ren; Zhai, Qingfeng; An, Tiance; Gong, Shu; Cheng, Wenlong
- Source:
- Talanta 2021 v.222 pp. 121484
- ISSN:
- 0039-9140
- Subject:
- gold, etc ; biocompatibility; biomarkers; biosensors; electrochemistry; electrodes; fabrics; hardness; lactic acid; monitoring; sweat; tensile strength; Show all 12 Subjects
- Abstract:
- ... Past several years have witnessed growing interest in developing wearable biosensors for non-invasive monitoring vital signs of chemical/biological markers such as lactate. In this context, textiles can be seen as a promising platform for the integration of wearable chemical sensors due to their inherent breathability, flexibility, softness and comfortableness. Gold is regarded as a preferred acti ...
- DOI:
- 10.1016/j.talanta.2020.121484
-
https://dx.doi.org/10.1016/j.talanta.2020.121484
- Author:
- Loyez, Médéric; Lobry, Maxime; Hassan, Eman M.; DeRosa, Maria C.; Caucheteur, Christophe; Wattiez, Ruddy
- Source:
- Talanta 2021 v.221 pp. 121452
- ISSN:
- 0039-9140
- Subject:
- gold, etc ; antibodies; biomarkers; breast neoplasms; data collection; oligonucleotides; optical fibers; refractive index; surface plasmon resonance; wavelengths; Show all 10 Subjects
- Abstract:
- ... Optical fiber-based surface plasmon resonance (OF-SPR) sensors have demonstrated high versatility and performances over the last years, which propelled the technique to the heart of numerous and original biosensing concepts. In this work, we contribute to this effort and present our recent findings about the detection of breast cancer HER2 biomarkers through OF-SPR optrodes. 1 cm-long sections of ...
- DOI:
- 10.1016/j.talanta.2020.121452
-
https://dx.doi.org/10.1016/j.talanta.2020.121452
- Author:
- Liao, Li Ping; Yao, Yan Qing; Wang, Gang; Xu, Cun Yun; Liu, De Bei; Zhou, Guang Dong; Zhong, Yuan Xin; Song, Qun Liang
- Source:
- Journal of cleaner production 2021 v.278 pp. 124168
- ISSN:
- 0959-6526
- Subject:
- gold, etc ; cooling; electric current; electrons; energy; iodides; lighting; solar cells; titanium dioxide; Show all 9 Subjects
- Abstract:
- ... Hot carriers in hybrid perovskite have been proven to have eminent properties with long carrier cooling time and long carrier migration distance. The invention of the internally photoemitted hot carrier (IPHC) solar cell recently makes it possible to utilize the hot electrons in CH₃NH₃PbI₃ perovskite and capture their excess energies under steady state illumination. How to further improve the effi ...
- DOI:
- 10.1016/j.jclepro.2020.124168
-
https://dx.doi.org/10.1016/j.jclepro.2020.124168
- Author:
- Morais, Stephanie L.; Barros, Piedade; Santos, Marlene; Delerue-Matos, Cristina; Gomes, Andreia C.; Fátima Barroso, M.
- Source:
- Talanta 2021 v.222 pp. 121416
- ISSN:
- 0039-9140
- Subject:
- gold, etc ; Alexandrium minutum; DNA; DNA probes; databases; electrochemistry; electrodes; fluorescein; genes; nucleic acid hybridization; toxicity; Atlantic Ocean; Show all 12 Subjects
- Abstract:
- ... This work addresses the development of a disposable electrochemical genosensor for the detection of the toxic dinoflagellate, Alexandrium minutum. Analyzing public databases, a specific 70 bp DNA probe, targeting A. minutum, was selected and designed. The genosensor methodology implied the immobilization of a A. minutum-specific DNA-capture probe onto screen-printed gold electrodes (SPGE). To impr ...
- DOI:
- 10.1016/j.talanta.2020.121416
-
https://dx.doi.org/10.1016/j.talanta.2020.121416
- Author:
- Sharma, Deepika; Wangoo, Nishima; Sharma, Rohit K.
- Source:
- Talanta 2021 v.221 pp. 121267
- ISSN:
- 0039-9140
- Subject:
- gold, etc ; acetylcholinesterase; biosensors; catalytic activity; copper; cost effectiveness; detection limit; enzymatic reactions; fluorescence; fluorometry; ions; nanoparticles; nanosilver; parathion; silver; Show all 15 Subjects
- Abstract:
- ... This work demonstrates a simple, cost effective and ultrasensitive detection of ethyl parathion, an organophosphorus (OPs) pesticide, using enzyme based fluorometric sensing strategy by employing bimetallic BSA@AuAg nanoclusters (NC). The sensing assay is based on the “quenched off” state of bimetallic NC with the addition of Cu²⁺ ions that can be “switched on” due to generation of thiocholine (TC ...
- DOI:
- 10.1016/j.talanta.2020.121267
-
https://dx.doi.org/10.1016/j.talanta.2020.121267
- Author:
- Costantini, Roberto; Colazzo, Luciano; Batini, Laura; Stredansky, Matus; Mohammed, Mohammed S. G.; Achilli, Simona; Floreano, Luca; Fratesi, Guido; de Oteyza, Dimas G.; Cossaro, Albano
- Source:
- Chemical communications 2020 v.56 no.19 pp. 2833-2836
- ISSN:
- 1364-548X
- Subject:
- gold, etc ; employment; tautomerization; tautomers; Show all 4 Subjects
- Abstract:
- ... The self-assembly of leucoquinizarin molecules on Au(111) surfaces is shown to be characterized by the molecules mostly being in their keto–enolic tautomeric form, with evidence of their temporary switching to other tautomeric forms. This reveals a metastable chemistry of the assembled molecules, to be considered for their possible employment in the formation of more complex hetero-organic interfa ...
- DOI:
- 10.1039/c9cc09915h
-
http://dx.doi.org/10.1039/c9cc09915h
- Author:
- Li, Haoyu; Li, Shiwei; Ma, Pengcheng; Zhou, Zhufen; Long, Hailin; Peng, Jinhui; Zhang, Libo
- Source:
- Journal of cleaner production 2021 v.281 pp. 124195
- ISSN:
- 0959-6526
- Subject:
- gold, etc ; calcium chloride; chlorination; chlorine; cyanides; heat treatment; hydrochloric acid; manufacturing; mass spectrometry; mine tailings; pollution; pollution control; raw materials; risk; roasting; slags; sulfur; temperature; thermodynamics; thermogravimetry; toxicity; Show all 21 Subjects
- Abstract:
- ... This paper describes cleaner chlorination thermal treatment for the recovery of gold from waste materials generated in gold manufacturing. Chlorination thermal treatment was conducted, and thermogravimetric-mass spectrometry (TG-MS) analyses were performed on the cyanide tailings (CTs). The results, along with thermodynamic calculations performed using FactSage, showed that Cl₂ was the main compou ...
- DOI:
- 10.1016/j.jclepro.2020.124195
-
https://dx.doi.org/10.1016/j.jclepro.2020.124195
- Author:
- Cheng, Yu-Hong; Liu, Si-Jia; Jiang, Jian-Hui
- Source:
- Talanta 2021 v.222 pp. 121536
- ISSN:
- 0039-9140
- Subject:
- gold, etc ; DNA; biosensors; detection limit; diagnostic techniques; electrochemistry; electrodes; enzymes; hybridization chain reaction; messenger RNA; neoplasms; nucleotides; pro-apoptotic proteins; washing; Show all 14 Subjects
- Abstract:
- ... The ability to recognize mRNA with high efficiency in cells would greatly facilitate the elucidation of mRNA-mediated cellular cascades and their disease associations. However, most traditional electrochemical strategies targeting nucleotides are always confronted with cumbersome interface operation and washing procedures, as well as the high cost of labeling and the strict reaction conditions of ...
- DOI:
- 10.1016/j.talanta.2020.121536
-
https://dx.doi.org/10.1016/j.talanta.2020.121536
- Author:
- Bhardwaj, Hema; Sumana, Gajjala; Marquette, Christophe A.
- Source:
- Talanta 2021 v.222 pp. 121578
- ISSN:
- 0039-9140
- Subject:
- gold, etc ; aflatoxin B1; antibodies; biosensors; corn; detection limit; electrochemistry; electrodes; glass; indium tin oxide; lipoic acid; microscopy; nanogold; spectroscopy; standard deviation; surface plasmon resonance; surfactants; Show all 17 Subjects
- Abstract:
- ... This work reports the development of an electrical and optical biosensing for label-free detection of Aflatoxin B₁ (AFB₁) using gold (Au) nanobipyramids (NBPs). AuNBPs were synthesized through a two-step seed-mediated growth process followed by an exchange of capping agent from surfactant to lipoic acid. Pure and monodispersed AuNBPs of 70 nm base length were obtained and deposited on indium tin o ...
- DOI:
- 10.1016/j.talanta.2020.121578
-
https://dx.doi.org/10.1016/j.talanta.2020.121578
- Author:
- Zhang, Ting; Lei, Lingli; Tian, Meiling; Ren, Junjie; Lu, Zhisong; Liu, Yang; Liu, Yingshuai
- Source:
- Talanta 2021 v.222 pp. 121478
- ISSN:
- 0039-9140
- Subject:
- gold, etc ; antibodies; cameras; corn; detection limit; immunoassays; infrared radiation; iron oxides; irradiation; magnetic properties; models; nanogold; ochratoxin A; peanuts; quantitative analysis; soybeans; Show all 16 Subjects
- Abstract:
- ... An ultrasensitive lateral flow immunoassay (LFIA) strip has been developed based on a multifunctional photothermal contrast Fe₃O₄@Au supraparticle (Fe₃O₄@Au SP) for quantitative Ochratoxin A (OTA) detection. The Fe₃O₄@Au SP composite not only shows a better photothermal effect over Fe₃O₄ and gold nanoparticles, but possesses magnetic property and excellent ability to directly adsorb protein (antib ...
- DOI:
- 10.1016/j.talanta.2020.121478
-
https://dx.doi.org/10.1016/j.talanta.2020.121478
- Author:
- Rao, Shuai; Liu, Yi; Wang, Dongxing; Cao, Hongyang; Zhu, Wei; Yang, Rui; Duan, Lijuan; Liu, Zhiqiang
- Source:
- Journal of cleaner production 2021 v.278 pp. 123989
- ISSN:
- 0959-6526
- Subject:
- gold, etc ; anodes; copper; energy-dispersive X-ray analysis; leaching; oxidation; oxygen; oxygen partial pressure; pH; scanning electron microscopy; selenides; selenium; silver; sulfuric acid; tellurium; temperature; thermodynamics; Show all 17 Subjects
- Abstract:
- ... Copper anode slimes are essential secondary resources from which valuable metals, such as Cu, Se, Te, Au, and Ag, may be recovered. Herein, oxidation pressure leaching is proposed for the pretreatment of copper anode slimes to realize efficient extraction of Cu, Se, and Te and enrichment of Au and Ag in the leaching residue. Detailed investigations were conducted to determine the effects of sulfur ...
- DOI:
- 10.1016/j.jclepro.2020.123989
-
https://dx.doi.org/10.1016/j.jclepro.2020.123989
- Author:
- Su, Yingchun; Zhang, Enshuang; Wang, Yitong; Li, Qiang; Chen, Menglin; Dong, Mingdong
- Source:
- Colloids and surfaces 2020 v.607 pp. 125468
- ISSN:
- 0927-7757
- Subject:
- gold, etc ; deformation; heat; nanogold; polymers; Show all 5 Subjects
- Abstract:
- ... Controllable nanowrinkles based on shape memory polymer (SMP) sheets have been achieved through metal deposition and subsequent heating recovery process, however, these processes cannot work without the help of macro deformation along the plane of SMP substrate. Herein, we report a simple, novel, yet more exceptional control strategy for the construction of tunable nanowrinkles based on the vertic ...
- DOI:
- 10.1016/j.colsurfa.2020.125468
-
https://dx.doi.org/10.1016/j.colsurfa.2020.125468
- Author:
- Mishra, Shantanu; Melidonie, Jason; Eimre, Kristjan; Obermann, Sebastian; Gröning, Oliver; Pignedoli, Carlo A.; Ruffieux, Pascal; Feng, Xinliang; Fasel, Roman
- Source:
- Chemical communications 2020 v.56 no.54 pp. 7467-7470
- ISSN:
- 1364-548X
- Subject:
- gold, etc ; chemical reactions; models; spectroscopy; Show all 4 Subjects
- Abstract:
- ... Zethrenes are model diradicaloids with potential applications in spintronics and optoelectronics. Despite a rich chemistry in solution, on-surface synthesis of zethrenes has never been demonstrated. We report the on-surface synthesis of super-heptazethrene on Au(111). Scanning tunneling spectroscopy investigations reveal that super-heptazethrene exhibits an exceedingly low HOMO–LUMO gap of 230 meV ...
- DOI:
- 10.1039/d0cc02513e
-
http://dx.doi.org/10.1039/d0cc02513e
- Author:
- Wang, Dingguan; Yang, Ming; Arramel,; Wu, Jishan; Wee, Andrew T. S.
- Source:
- ACS applied materials & interfaces 2020 v.12 no.31 pp. 35547-35554
- ISSN:
- 1944-8252
- Subject:
- gold, etc ; annealing; scanning tunneling microscopy; Show all 3 Subjects
- Abstract:
- ... The realization of chiral supramolecular architectures on solid surfaces has triggered much interest due to its potential enantiospecific applications. An in-depth study of chiral aggregation on surfaces is significant for developing functional chiral surfaces. Herein, we report thermally induced chiral aggregation of dihydrobenzopyrenone on Au(111). By high-resolution low-temperature scanning tun ...
- DOI:
- 10.1021/acsami.0c05856
-
http://dx.doi.org/10.1021/acsami.0c05856
- Author:
- Liu, Jianbo; Zhao, Rusong; Wang, Xia; Gao, Xuwen; Zou, Guizheng
- Source:
- Chemical communications 2020 v.56 no.48 pp. 6594
- ISSN:
- 1364-548X
- Subject:
- gold, etc ; chemical reactions; nanoparticles; silver; Show all 4 Subjects
- Abstract:
- ... Correction for 'Mechanistic investigations into synergistically enhanced radiative-charge-transfer in Au–Ag bimetallic nanoclusters' by Jianbo Liu et al., Chem. Commun., 2020, 56, 5665–5668, DOI: 10.1039/D0CC02047H. ...
- DOI:
- 10.1039/d0cc90244f
-
http://dx.doi.org/10.1039/d0cc90244f
- Author:
- Wang, Jiwei; Zhan, Licheng; Wang, Gendi; Wei, Yin; Shi, Min; Zhang, Jun
- Source:
- Chemical communications 2020 v.56 no.46 pp. 6213-6216
- ISSN:
- 1364-548X
- Subject:
- gold, etc ; chemical reactions; iodobenzenes; palladium; Show all 4 Subjects
- Abstract:
- ... A novel Pd/Au vinylene complex synthesized through cyclization of σ,π-heterodinuclear (Pd/Au) acetylide reacted with iodobenzene to give a Pd vinyl species, where the presence of a strong metallophilic Pd⋯Au interaction was found to facilitate phenyl transmetalation from Pd to Au, followed by reductive elimination at Au. ...
- DOI:
- 10.1039/d0cc02645j
-
http://dx.doi.org/10.1039/d0cc02645j
- Author:
- Li, Jinjin; Li, Jianfeng; Chen, Xinchun; Liu, Yuhong; Luo, Jianbin
- Source:
- Carbon 2020 v.161 pp. 827-833
- ISSN:
- 0008-6223
- Subject:
- gold, etc ; friction; lubrication; models; nanogold; Show all 5 Subjects
- Abstract:
- ... Superlubricity at gold–graphite heterointerfaces can be easily achieved at the nanoscale because the different lattice parameters make them the promising friction pairs to form the incommensurate contact. However, the superlubricity under a high contact pressure at micro- or macro-scales, which has great implications in mechanical lubrication, remains unclear. In this study, a gold nanocrystal-coa ...
- DOI:
- 10.1016/j.carbon.2020.01.070
-
https://dx.doi.org/10.1016/j.carbon.2020.01.070
- Author:
- Grebneva-Balyuk, O. N.; Kubrakova, I. V.
- Source:
- Journal of analytical chemistry 2020 v.75 no.3 pp. 275-285
- ISSN:
- 1061-9348
- Subject:
- gold, etc ; atomic absorption spectrometry; platinum; Show all 3 Subjects
- Abstract:
- ... Published data on approaches used to suppress/eliminate interferences of various origins in determining platinum group elements and gold in geological samples by inductively coupled plasma mass spectrometry are generalized and analyzed. ...
- DOI:
- 10.1134/S1061934820030065
-
http://dx.doi.org/10.1134/S1061934820030065
- Author:
- Minakawa, Muneharu; Imura, Yoshiro; Kawai, Takeshi
- Source:
- RSC advances 2020 v.10 no.10 pp. 5972-5977
- ISSN:
- 2046-2069
- Subject:
- gold, etc ; amines; mixing; nanocrystals; solvents; Show all 5 Subjects
- Abstract:
- ... Shape-controlled halide perovskite nanocrystals are attractive as an emerging functional material; however, these nanocrystals are prepared using organic solvents containing alkylamines and there are few reports on the synthesis of water-dispersible halide perovskite nanocrystals. We report a simple method to prepare water-dispersible, plate-like perovskite nanocrystals by mixing a long-chain amid ...
- DOI:
- 10.1039/d0ra00657b
-
http://dx.doi.org/10.1039/d0ra00657b
- Author:
- Belle, Gladys; Fossey, Annabel; Esterhuizen, Leana; Moodley, Roshila
- Source:
- Groundwater for sustainable development 2021 v.12 pp. 100507
- ISSN:
- 2352-801X
- Subject:
- gold, etc ; Escherichia coli; case studies; coliform bacteria; drinking water; groundwater; groundwater contamination; human health; iron; lead; mine tailings; mining; people; plate count; sustainable development; toxicity; water quality; South Africa; Show all 18 Subjects
- Abstract:
- ... Mining of gold in the Welkom and Virginia areas of the Free State Province in South Africa has produced numerous gold mine tailings, which contain a variety of contaminants. The extent of contamination of groundwater in the area was studied by measuring several water quality indicators at eight sampling sites, and within three zones. The overall contamination of groundwater was quantified by compu ...
- DOI:
- 10.1016/j.gsd.2020.100507
-
https://dx.doi.org/10.1016/j.gsd.2020.100507