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Guo X, Sun X, Zhang J, Huang Y, Liu X, Liu X, Xu W, Chen D. Luminescent Mechanism and Anti-Counterfeiting Application of Hydrophilic, Undoped Room-Temperature Phosphorescent Silicon Nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2303464. [PMID: 37670207 DOI: 10.1002/smll.202303464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/23/2023] [Indexed: 09/07/2023]
Abstract
Silicon nanocrystals (SiNCs) have attracted extensive attention in many advanced applications due to silicon's high natural abundance, low toxicity, and impressive optical properties. However, these applications are mainly focused on fluorescent SiNCs, little attention is paid to SiNCs with room-temperature phosphorescence (RTP) and their relative applications, especially water-dispersed ones. Herein, this work presents water-dispersible RTP SiNCs (UA-SiNCs) and their optical applications. The UA-SiNCs with a uniform particle size of 2.8 nm are prepared by thermal hydrosilylation between hydrogen-terminated SiNCs (H-SiNCs) and 10-undecenoic acid (UA). Interestingly, the resultant UA-SiNCs can exhibit tunable long-lived RTP with an average lifetime of 0.85 s. The RTP feature of the UA-SiNCs is confirmed to the n-π* transitions of their surface C═O groups. Subsequently, new dual-modal emissive UA-SiNCs-based ink is fabricated by blending with sodium alginate (SA) as the binder. The customized anticounterfeiting labels are also prepared on cellulosic substrates by screen-printing technique. As expected, UA-SiNCs/SA ink exhibits excellent practicability in anticounterfeiting applications. These findings will trigger the rapid development of RTP SiNCs, envisioning enormous potential in future advanced applications such as high-level anti-counterfeiting, information encryption, and so forth.
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Affiliation(s)
- Xin Guo
- State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan, 430073, P. R. China
| | - Xuening Sun
- State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan, 430073, P. R. China
| | - Jinfeng Zhang
- State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan, 430073, P. R. China
| | - Yuanfen Huang
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Xiaohong Liu
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Xin Liu
- State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan, 430073, P. R. China
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Weilin Xu
- State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan, 430073, P. R. China
| | - Dongzhi Chen
- State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan, 430073, P. R. China
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
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2
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Borlan R, Soritau O, Maniu D, Hada AM, Florea A, Astilean S, Focsan M. Albumin nanoparticles with tunable ultraviolet-to-red autofluorescence for label-free cell imaging and selective biosensing of copper ion. Int J Biol Macromol 2023:125129. [PMID: 37263331 DOI: 10.1016/j.ijbiomac.2023.125129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/15/2023] [Accepted: 05/25/2023] [Indexed: 06/03/2023]
Abstract
Early and simple detection of aberrant cooper metabolism in diseases with neurological-manifestations and several other conditions, including cancer, becomes an urgent necessity. Instrumental methods used today are limited to high-cost equipment and reagents and demand highly qualified personnel. In this work, we report easy-to-use and cost-effective nano-sized sensors for the selective and quantitative detection of copper ion based on fluorescence quenching. Glutaraldehyde cross-linked albumin nanoparticles with tunable ultraviolet-to-red autofluorescence emissions are developed as dual-agents for sensing and imaging. These albumin nanoparticles show great selectivity towards copper ion when tested against a selection of biochemical components and other metal ions, and a limit of detection as low as 1.9 μM, relevant for sensing in clinical diagnosis, was determined. In addition, a lack of toxicity and good cellular uptake were observed and the ultraviolet-to-red intrinsic fluorescence of the albumin nanoparticles was preserved when tested in vitro on NIH:OVCAR3 cell line. Preliminary studies confirm the albumin nanoparticles' ability to detect Cu2+in vitro and establishes their potential for future practical use.
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Affiliation(s)
- Raluca Borlan
- Nanobiophotonics and Laser Microspectroscopy Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Cluj-Napoca, Cluj, Romania
| | - Olga Soritau
- Department of Radiobiology and Tumor Biology, Oncology Institute Prof. Dr. Ion Chiricuta, Cluj-Napoca, Cluj, Romania
| | - Dana Maniu
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Cluj, Romania.
| | - Alexandru-Milentie Hada
- Nanobiophotonics and Laser Microspectroscopy Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Cluj-Napoca, Cluj, Romania; Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Cluj, Romania.
| | - Adrian Florea
- Department of Cell and Molecular Biology, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Cluj, Romania.
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Cluj-Napoca, Cluj, Romania; Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Cluj, Romania.
| | - Monica Focsan
- Nanobiophotonics and Laser Microspectroscopy Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Cluj-Napoca, Cluj, Romania.
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Molecularly Designed Ion-Imprinted Nanoparticles for Real-Time Sensing of Cu(II) Ions Using Quartz Crystal Microbalance. Biomimetics (Basel) 2022; 7:biomimetics7040191. [PMID: 36412719 PMCID: PMC9680276 DOI: 10.3390/biomimetics7040191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/27/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022] Open
Abstract
A molecularly designed imprinting method was combined with a gravimetric nanosensor for the real-time detection Cu(II) ions in aqueous solutions without using expensive laboratory devices. Thus, 1:1 and 2:1 mol-ratio-dependent coordination modes between Cu(II), N-methacyloly-L histidine methyl ester (MAH) functional monomer complexes, and their four-fold and six-fold coordinations were calculated by means of density functional theory molecular modeling. Cu(II)-MIP1 and Cu(II)-MIP2 nanoparticles were synthesized in the size range of 80-100 nm and characterized by SEM, AFM and FTIR. Cu(II)-MIP nanoparticles were then conducted to a quartz crystal microbalance sensor for the real-time detection of Cu(II) ions in aqueous solutions. The effects of initial Cu(II) concentration, selectivity, and imprinting efficiency were investigated for the optimization of the nanosensor. Linearity of 99% was obtained in the Cu(II) ion linear concentration range of 0.15-1.57 µM with high sensitivity. The LOD was obtained as 40.7 nM for Cu(II)-MIP2 nanoparticles. The selectivity and the imprinting efficiency of the QCM nanosensor were obtained significantly in the presence of competitive ion samples (Co(II), Ni(II), Zn(II), and Fe(II)). The results are promising for sensing Cu(II) ions as environmental toxicants in water by combining molecularly designed ion-imprinted nanoparticles and a gravimetric sensor.
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4
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Gerdan Z, Saylan Y, Uğur M, Denizli A. Ion-Imprinted Polymer-on-a-Sensor for Copper Detection. BIOSENSORS 2022; 12:91. [PMID: 35200351 PMCID: PMC8869677 DOI: 10.3390/bios12020091] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/27/2022] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
The accumulation of metal ions in the body is caused by human activities and industrial uses. Among these metal ions, copper is the third most abundant ion found in the human body and is indispensable for health because it works as a catalyst in the iron absorption processes. However, high doses of copper ions have been reported to generate various diseases. Different types of sensors are used to detect metal ions for several applications. To design selective and specific recognition sites on the sensor surfaces, molecular imprinting is one of the most used alteration methods to detect targets by mimicking natural recognition molecules. In this study, an ion-imprinted polymer-integrated plasmonic sensor was prepared to selectively detect copper (Cu(II)) ions in real-time. Following different characterization experiments, the Cu(II)-imprinted plasmonic sensor was employed for kinetic, selectivity, and reusability studies. According to the results, it was observed that this sensor can measure with 96% accuracy in the Cu(II) concentration range of 0.04-5 μM in buffer solution. The limit of detection and limit of quantification values were computed as 0.027 µM and 0.089 µM. The results also showed that this plasmonic sensor works successfully not only in a buffer solution but also in complex media such as plasma and urine.
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Affiliation(s)
- Zeynep Gerdan
- Graduate School of Biomedical Engineering, Istanbul University-Cerrahpaşa, Istanbul 34320, Turkey;
| | - Yeşeren Saylan
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkey;
| | - Mukden Uğur
- Department of Robotics and Intelligent Systems, Institute of Science, Turkish German University, Istanbul 34820, Turkey;
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkey;
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5
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Huang Y, Cohen TA, Sperry BM, Larson H, Nguyen HA, Homer MK, Dou FY, Jacoby LM, Cossairt BM, Gamelin DR, Luscombe CK. Organic building blocks at inorganic nanomaterial interfaces. MATERIALS HORIZONS 2022; 9:61-87. [PMID: 34851347 DOI: 10.1039/d1mh01294k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This tutorial review presents our perspective on designing organic molecules for the functionalization of inorganic nanomaterial surfaces, through the model of an "anchor-functionality" paradigm. This "anchor-functionality" paradigm is a streamlined design strategy developed from a comprehensive range of materials (e.g., lead halide perovskites, II-VI semiconductors, III-V semiconductors, metal oxides, diamonds, carbon dots, silicon, etc.) and applications (e.g., light-emitting diodes, photovoltaics, lasers, photonic cavities, photocatalysis, fluorescence imaging, photo dynamic therapy, drug delivery, etc.). The structure of this organic interface modifier comprises two key components: anchor groups binding to inorganic surfaces and functional groups that optimize their performance in specific applications. To help readers better understand and utilize this approach, the roles of different anchor groups and different functional groups are discussed and explained through their interactions with inorganic materials and external environments.
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Affiliation(s)
- Yunping Huang
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Theodore A Cohen
- Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, USA
| | - Breena M Sperry
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Helen Larson
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Hao A Nguyen
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Micaela K Homer
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Florence Y Dou
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Laura M Jacoby
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Brandi M Cossairt
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Daniel R Gamelin
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
| | - Christine K Luscombe
- Department of Materials Science & Engineering, University of Washington, Seattle, WA 98195, USA.
- Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA 98195, USA
- Department of Chemistry, University of Washington, Seattle, WA 98195, USA
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6
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Qi H, Huang X, Wu J, Zhang J, Wang F, Qu H, Zheng L. A disposable aptasensor based on a gold-plated coplanar electrode array for on-site and real-time determination of Cu 2. Anal Chim Acta 2021; 1183:338991. [PMID: 34627507 DOI: 10.1016/j.aca.2021.338991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 11/25/2022]
Abstract
Copper ion (Cu2+) is an important cofactor for many enzymes in human body. Either excessive or deficient Cu2+ in the body may cause serious dysfunctions and diseases. So sensitive determination of Cu2+ in environmental samples is of more significance for evaluation and control of Cu2+ intake. Based on a low-cost gold-plated coplanar electrode array, a disposable aptasensor is developed with an ultra-sensitive indicator of interfacial capacitance. Modified with a specially isolated DNA aptamer for Cu2+, this sensor achieves a high selectivity of 1207: 1 against non-target ions. To realize real-time response, alternating-current electrothermal effect is integrated into the capacitance measuring process to efficiently enrich the trace Cu2+. This sensor reaches a limit of detection of 2.97 fM, with a linear range from 5.0 fM to 50 pM. The response time is only 15 s, which can meet the real-time detection requirement. On-site test of practical samples is also realized using the disposable sensor combined with a handheld inductance/capacitance/resistance meter. This sensor with its portable test system provides a cost-efficient solution for on-site, real-time and sensitive detection of Cu2+, showing great application value in environment monitoring.
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Affiliation(s)
- Haochen Qi
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China; School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Xiaofan Huang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN, 37996, USA.
| | - Jian Zhang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China; School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China.
| | - Fei Wang
- Beijing Smartchip Microelectronics Technology Company Limited, Beijing, 102200, China
| | - Hao Qu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Lei Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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7
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Chen S, Chen C, Wang J, Luo F, Guo L, Qiu B, Lin Z. A Bright Nitrogen-doped-Carbon-Dots based Fluorescent Biosensor for Selective Detection of Copper Ions. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00162-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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8
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Meng Q, Wei S, Xu Z, Cao Q, Xiao Y, Liu N, Liu H, Han G, Zhang J, Yan J, Palov AP, Wu L. Hafnium oxide layer-enhanced single-walled carbon nanotube field-effect transistor-based sensing platform. Anal Chim Acta 2021; 1147:99-107. [PMID: 33485588 DOI: 10.1016/j.aca.2020.12.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/26/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
Single-walled carbon nanotube-based field effect transistors (SWCNT-FETs) are ideal candidates for fabricating sensors and have been widely used for chemical sensing applications. SWCNT-FETs have low selectivity because of the environmentally sensitive electronic properties of SWCNTs, and SWCNT-FETs also show a high noise signal and poor sensitivity because of charge trapping from Si-OH hydration of the SiO2/Si substrate on the SWCNTs. Herein, poly (4-vinylpyridine) (P4VP) was used for noncovalent attachment to SWCNTs and selective binding to copper ions (Cu2+). Importantly, the introduction of a hafnium-oxide (HfO2) layer through atomic layer deposition (ALD) overcame the charge trapping by SiO2 hydration and remarkably decreased the interference signal. The sensitivity of the P4VP/SWCNT/HfO2-FET sensor for Cu2+ was 7.9 μA μM-1, which was approximately 100 times higher than that of the P4VP/SWCNT/SiO2-FET sensor, and its limit of detection (LOD) was as low as 33 pmol L-1. Thus, the P4VP/SWCNT/HfO2-FET sensor is a promising candidate for the development of Cu2+-selective sensors and can be designed for the large-scale manufacturing of custom-made sensors in the future.
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Affiliation(s)
- QingYi Meng
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Shuhua Wei
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Zhiyuan Xu
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Qiang Cao
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China; Shanghai Ocean University, Shanghai, 201306, China
| | - Yushi Xiao
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China; Shanghai Ocean University, Shanghai, 201306, China
| | - Na Liu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China; Shanghai Ocean University, Shanghai, 201306, China
| | - Huan Liu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China
| | - Gang Han
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China
| | - Jing Zhang
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Jiang Yan
- School of Information Science and Technology, North China University of Technology, Beijing, 100144, China
| | - Alexander P Palov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Lidong Wu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing, 100141, China.
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9
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Shyamsivappan S, Saravanan A, Vandana N, Suresh T, Suresh S, Nandhakumar R, Mohan PS. Novel Quinoline-Based Thiazole Derivatives for Selective Detection of Fe 3+, Fe 2+, and Cu 2+ Ions. ACS OMEGA 2020; 5:27245-27253. [PMID: 33134686 PMCID: PMC7594140 DOI: 10.1021/acsomega.0c03445] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 09/29/2020] [Indexed: 05/04/2023]
Abstract
New quinoline-based thiazole derivatives QPT and QBT were synthesized and characterized by various spectroscopic and single-crystal X-ray crystallographic studies. The metal-sensing properties of the probes were further examined by absorption and fluorescence spectrometry. The fluorescence intensity of QPT and QBT was remarkably quenched during the addition of Fe3+, Fe2+, and Cu2+ ions in THF/H2O (1:1) at pH = 7.4 in HEPES buffer, while the addition of other metal ions did not affect the fluorescence intensity of the ligands. The detection ability of the probes QPT and QBT was further investigated by titration with various equivalents of metal ions, optimized pH ranges for detection, and reversibility with Na2EDTA for biological applications.
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Affiliation(s)
- Selvaraj Shyamsivappan
- School
of Chemical Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India
| | - Arjunan Saravanan
- DRDO-BU
CLS, Bharathiar University, Coimbatore, Tamil Nadu 641046, India
| | - Nandakumar Vandana
- School
of Chemical Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India
| | - Thangaraj Suresh
- School
of Chemical Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India
| | - Shanmugam Suresh
- Department
of Chemistry, Karunya Institute of Technology
and Sciences, Coimbatore, Tamil Nadu 641114, India
| | - Raju Nandhakumar
- Department
of Chemistry, Karunya Institute of Technology
and Sciences, Coimbatore, Tamil Nadu 641114, India
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10
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Yang Z, Chen X, Li S, Ma W, Li Y, He Z, Hu H. Effective removal of Cr(VI) from aqueous solution based on APTES modified nanoporous silicon prepared from kerf loss silicon waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:10899-10909. [PMID: 31950422 DOI: 10.1007/s11356-019-07427-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 12/17/2019] [Indexed: 05/27/2023]
Abstract
Recently, the recycling of kerf loss silicon waste has trigged much attention due to the rapid growth of PV market. In this study, 3-aminopropylethoxysilane (APTES)-functionalized nanoporous silicon (NPSi) hybrid materials were prepared by nanosilver-assisted chemical etching (Ag-ACE) of kerf loss silicon waste derived from diamond-wire saw cutting silicon ingot process. The resulting APTES-NPSi indicated high-effective adsorption ability of Cr(VI) from aqueous solution, which was highly pH dependent, and the maximum adsorption capacity reached up to 103.75 mg/g after 60 min at room temperature. The adsorption kinetics and adsorption isotherms were in good agreement with pseudo-second-order model and Langmuir isotherm. Additionally, the Cr(VI) up-take mechanism was carefully investigated and ascribed to the Cr(VI) adsorption on the protonated anime groups by chemical chelating reaction in which the Cr(VI) was reduced to Cr(III). It was worth mentioning that the APTES-NPSi maintained excellent adsorption capacity after five successive regenerated cycles. Therefore, the work would pave the way for recycling of silicon cutting waste and the potential of Cr(VI) removal from aqueous solution based on the modified NPSi.
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Affiliation(s)
- Ziheng Yang
- Institution of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Xiuhua Chen
- Institution of Materials Science and Engineering, Yunnan University, Kunming, 650091, China.
| | - Shaoyuan Li
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Wenhui Ma
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province, Kunming University of Science and Technology, Kunming, 650093, China
| | - Yi Li
- Institution of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
| | - Zudong He
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province, Kunming University of Science and Technology, Kunming, 650093, China
| | - Huanran Hu
- Institution of Materials Science and Engineering, Yunnan University, Kunming, 650091, China
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11
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A Fluorimetric Method Based on an Imidazole Compound for Cu 2+ Determination in Tap Water. J CHEM-NY 2020. [DOI: 10.1155/2020/8318206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Ion sensor properties of 4-(1-(4-hydroxy-3-methoxybenzyl)-1H-benzo[d]imidazol-2-yl)-2-methoxyphenol (L) in acetonitrile-water (1 : 1) were evaluated by fluorescence spectrometry. Pronounced quenching in the fluorescence spectra of the ligand was only observed for the Cu2+ ion among many metal ions. Linear fluorescence responses of the ligand at 360 nm as the function of the Cu2+ concentration were used for the determination of the Cu2+ ion in spiked tap water samples. Recovery values (R%) were satisfactory, and relative standard deviation (RSD%) was below 5.00 in intraday and interday measurements. Detection and quantification limits were 0.28 and 0.84 μg/L, respectively. The assay based on external calibration only took a few minutes.
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12
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Engineering of alkyl-terminated silicon nanoparticles for the selective filtration of copper ions. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Canham L. Introductory lecture: origins and applications of efficient visible photoluminescence from silicon-based nanostructures. Faraday Discuss 2020; 222:10-81. [DOI: 10.1039/d0fd00018c] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review highlights many spectroscopy-based studies and selected phenomenological studies of silicon-based nanostructures that provide insight into their likely PL mechanisms, and also covers six application areas.
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Affiliation(s)
- Leigh Canham
- School of Physics and Astronomy
- University of Birmingham
- Birmingham
- UK
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14
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A highly selective semiconducting polymer dots-based “off–on” fluorescent nanoprobe for iron, copper and histidine detection and imaging in living cells. Talanta 2019; 194:752-762. [DOI: 10.1016/j.talanta.2018.10.072] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/21/2018] [Accepted: 10/22/2018] [Indexed: 02/07/2023]
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15
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Arshavsky-Graham S, Massad-Ivanir N, Segal E, Weiss S. Porous Silicon-Based Photonic Biosensors: Current Status and Emerging Applications. Anal Chem 2018; 91:441-467. [DOI: 10.1021/acs.analchem.8b05028] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sofia Arshavsky-Graham
- Department of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, Haifa 3200003, Israel
- Institute of Technical Chemistry, Leibniz Universität Hannover, Callinstrasse 5, 30167 Hanover, Germany
| | - Naama Massad-Ivanir
- Department of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, Haifa 3200003, Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, Haifa 3200003, Israel
- The Russell Berrie Nanotechnology Institute, Technion − Israel Institute of Technology, Haifa 3200003, Israel
| | - Sharon Weiss
- Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, Tennessee 37235, United States
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Chen X, Lu Q, Liu D, Wu C, Liu M, Li H, Zhang Y, Yao S. Highly sensitive and selective determination of copper(II) based on a dual catalytic effect and by using silicon nanoparticles as a fluorescent probe. Mikrochim Acta 2018; 185:188. [DOI: 10.1007/s00604-018-2720-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 01/31/2018] [Indexed: 01/18/2023]
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