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Sun J, Zhu Y, Yin H, Yin J. The release of polypropylene plastic from disposable face masks in different water conditions and their potential toxicity in human cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123296. [PMID: 38182010 DOI: 10.1016/j.envpol.2024.123296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/19/2023] [Accepted: 01/03/2024] [Indexed: 01/07/2024]
Abstract
Due to their extensive use during and after the COVID-19 pandemic, many disposable face masks are irresponsibly deposited into the water environment, threatening the health of people living nearby. However, the effects of water conditions on the degradation and potential hazards of these masks are generally unclear. This paper entailed the release and cellular toxicity of micro/nano plastics from disposable face masks once discarded in different waters, including soil water, river water, and tap water, with deionized (DI) water as control. At first, polypropylene (PP) was confirmed to be the major component of disposable face masks with Raman and Fourier transform infrared (FTIR) techniques. To monitor the release rate of PP from masks, a silver nanoparticle (AgNP)-based surface-enhanced Raman scattering (SERS) method was established by employing the unique Raman fingerprint of PP at 2882 cm-1. During 30-d incubation in different waters, the release rates of PP, sizes of PP aggregates, length of fibers, and proportions of plastics smaller than 100 nm were in the order of soil water > river water > tap water > DI water. All the obtained PP exhibited significant toxicity in human lung cancer (A549) cells at concentrations of 70 mg/L for 48 h, and the ones obtained in soil water exhibited the most severe damage. Overall, this paper revealed that environmental waters themselves would worsen the adverse effects of disposable face masks, and the key compounds affecting the degradation of masks remain to be clarified. Such information, along with the established methods, could be beneficial in assessing the health risks of disposable face masks in different waters.
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Affiliation(s)
- Jiaojiao Sun
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, PR China.
| | - Yan Zhu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu, 210098, PR China
| | - Huancai Yin
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, PR China
| | - Jian Yin
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, PR China; Jinan Guo Ke Medical Technology Development Co., Ltd, Jinan, 250001, PR China.
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2
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Ham JH, Park JS, Oh MK, Kim JH. Reusable Wrinkled Nanoporous Silver Film Fabricated by Plasma Treatment for Surface-Enhanced Raman Scattering Applications. ACS OMEGA 2023; 8:47146-47152. [PMID: 38107931 PMCID: PMC10720294 DOI: 10.1021/acsomega.3c07167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/09/2023] [Accepted: 11/22/2023] [Indexed: 12/19/2023]
Abstract
A nanoporous silver film (npAgF), a promising structure for surface-enhanced Raman spectroscopy (SERS), can be fabricated by using successive O2 and Ar plasma treatments on a planar silver film. The common dealloying method for producing an npAgF involves annealing at high temperatures to produce an alloy film, as well as harsh etching using corrosive chemicals. By contrast, the plasma-based method can be applied directly to various functional substrates to produce more sophisticated npAgF structures. Herein, we report a facile fabrication method for a wrinkled npAgF (w-npAgF) for SERS applications using a thermally contractible polystyrene substrate. The w-npAgF had 3D wrinkles of the nanoporous structure and showed approximately 8 times higher SERS enhancement than did the flat npAgF. Moreover, the w-npAgF could be reused for multiple SERS measurements of different molecules by mild O2 and Ar plasma treatments after each use, in which the O2 plasma effectively removed the adsorbed organic molecules and the Ar plasma reduced silver oxide to pristine silver for subsequent SERS measurements. The wrinkled nanoporous structure was maintained after multiple mild plasma treatments for reuse. The simplicity of plasma-based fabrication and high sensitivity of w-npAgFs are promising features for the green production of low-cost and reusable 3D SERS substrates.
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Affiliation(s)
- Jin-Hyun Ham
- Advanced Photonics Research Institute
(APRI), Gwangju Institute of Science and
Technology, Gwangju 61005, Republic
of Korea
| | - Jung Su Park
- Advanced Photonics Research Institute
(APRI), Gwangju Institute of Science and
Technology, Gwangju 61005, Republic
of Korea
| | - Myoung-Kyu Oh
- Advanced Photonics Research Institute
(APRI), Gwangju Institute of Science and
Technology, Gwangju 61005, Republic
of Korea
| | - Joon Heon Kim
- Advanced Photonics Research Institute
(APRI), Gwangju Institute of Science and
Technology, Gwangju 61005, Republic
of Korea
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3
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Highly sensitive gold nanoparticles-modified silver nanorod arrays for determination of methyl viologen. Mikrochim Acta 2022; 189:479. [DOI: 10.1007/s00604-022-05590-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
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4
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Li X, Petrescu FIT, Danzeng Q, Zhu H, Li Y, Shi G. A Bioinspired Ag Nanoparticle/PPy Nanobowl/TiO 2 Micropyramid SERS Substrate. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4104. [PMID: 36432388 PMCID: PMC9698954 DOI: 10.3390/nano12224104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
In this paper, the micropyramid structure was transferred to the TiO2 substrate by soft imprinting. Then, the PPy nanobowls were assembled onto the surface of the TiO2 micropyramids through the induction of the PS template. Finally, a layer of Ag nanoparticles was deposited on the surface of PPy nanobowls to form a novel Ag nanoparticle/PPy nanobowl/TiO2 micropyramid SERS substrate. Its structure is similar to the bioinspired compound eyes. This substrate exhibited excellent antireflection, ultra-sensitivity, excellent uniformity, and recyclability. The concentration of R6G molecules can be detected as low as 10-9 mol/L, and the Raman enhancement factor can reach 3.4 × 105. In addition, the excellent catalytic degradation performance of the substrate ensures recyclability. This work proves that the micropyramid structure can be applied to other SERS materials besides silicon by the above methods, which broadens the selection range of composite SERS materials.
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Affiliation(s)
- Xin Li
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education; School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | | | - Qupei Danzeng
- Department of Tibetan medicine; University of Tibetan Medicine, Lhasa 540100, China
| | - Haiyan Zhu
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education; School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Ying Li
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education; School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Gang Shi
- Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education; School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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5
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Zhang Q, Zhang Y, Chen H, Zhang L, Li P, Xiao H, Wu W. One-dimensional nanohybrids based on cellulose nanocrystals and their SERS performance. Carbohydr Polym 2022; 284:119140. [DOI: 10.1016/j.carbpol.2022.119140] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 12/28/2021] [Accepted: 01/10/2022] [Indexed: 12/19/2022]
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Wang BX, Xu W, Yang Z, Wu Y, Pi F. An Overview on Recent Progress of the Hydrogels: From Material Resources, Properties to Functional Applications. Macromol Rapid Commun 2022; 43:e2100785. [PMID: 35075726 DOI: 10.1002/marc.202100785] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/04/2022] [Indexed: 11/06/2022]
Abstract
Hydrogels, as the most typical elastomer materials with three-dimensional network structures, have attracted wide attention owing to their outstanding features in fields of sensitive stimulus response, low surface friction coefficient, good flexibility and bio-compatibility. Because of numerous fresh polymer materials (or polymerization monomers), hydrogels with various structure diversities and excellent properties are emerging, and the development of hydrogels is very vigorous over the past decade. This review focuses on state-of-the-art advances, systematically reviews the recent progress on construction of novel hydrogels utilized several kinds of typical polymerization monomers, and explores the main chemical and physical cross-linking methods to develop the diversity of hydrogels. Following the aspects mentioned above, the classification and emerging applications of hydrogels, such as pH response, ionic response, electrical response, thermal response, biomolecular response, and gas response, are extensively summarized. Finally, we have done this review with the promises and challenges for the future evolution of hydrogels and their biological applications. cross-linking methods; functional applications; hydrogels; material resources This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ben-Xin Wang
- School of Science, Jiangnan University, Wuxi, 214122, China
| | - Wei Xu
- School of Science, Jiangnan University, Wuxi, 214122, China
| | - Zhuchuang Yang
- School of Science, Jiangnan University, Wuxi, 214122, China
| | - Yangkuan Wu
- School of Science, Jiangnan University, Wuxi, 214122, China
| | - Fuwei Pi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
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Kausar A. Shape memory polystyrene-based nanocomposite: present status and future opportunities. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2020. [DOI: 10.1080/10601325.2020.1840919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ayesha Kausar
- Nanosciences Division, National Center For Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
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Zhou XX, Liu R, Hao LT, Liu JF. Identification of polystyrene nanoplastics using surface enhanced Raman spectroscopy. Talanta 2020; 221:121552. [PMID: 33076108 DOI: 10.1016/j.talanta.2020.121552] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 11/26/2022]
Abstract
There is clear evidence that micro- and nanoplastics are accumulating in the environment, and their increasing concern of potential harm to wildlife has been identified as a major global issue. However, identification of nanoplastics in environmental samples remains a great challenge, and thus highlighting the great need for new approach. Herein, for the first time, we show that surface enhanced Raman spectroscopy (SERS) offered a feasible approach to identify trace polystyrene (PS) nanoplastics, which is the most produced nanoplastics and also widely presented in the natural environment. We found that when PS nanoplastics were surrounded by SERS-active silver nanoparticles (AgNPs), a set of Raman spectra with chemical information could be obtained via SERS mapping. This map showed the potential PS distribution of the nanoplastics on a silicon wafer, allowing a quick and detailed analysis of the nanoplastics. Moreover, the proposed method was able to identify previously undetectable plastic particles as small as ~50 nm spiked in real water, demonstrating the power of SERS to probe nanoplastics. Our work is thus an important step in nanoplastic research, and we believe that this approach can be further developed to study the occurrence, formation, and transports of nanoplastics in the natural environment.
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Affiliation(s)
- Xiao-Xia Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing, 100085, China; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Research Institute of Environmental Studies at Greater Bay, Guangzhou University, Guangzhou, 510006, China
| | - Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing, 100085, China
| | - Li-Teng Hao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing, 100085, China; Institute of Environment and Health, Jianghan University, Wuhan, 430056, China
| | - Jing-Fu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing, 100085, China; Institute of Environment and Health, Jianghan University, Wuhan, 430056, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Lu H, Zhu L, Lu Y, Su J, Zhang R, Cui Y. Manipulating "Hot Spots" from Nanometer to Angstrom: Toward Understanding Integrated Contributions of Molecule Number and Gap Size for Ultrasensitive Surface-Enhanced Raman Scattering Detection. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39359-39368. [PMID: 31565918 DOI: 10.1021/acsami.9b13518] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Narrower gaps between metal nanoparticles (so-called "hot spots") in surface-enhanced Raman scattering (SERS) substrates contribute to stronger electromagnetic (EM) enhancement; however, the accompanying steric effect hinders analyte molecules entering hot spots to access the benefit. To comprehensively understand integrated contributions of the gap size and molecule number accommodated in hot spots and then optimize design of SERS substrates, the thermal shrinking method was employed to manipulate hot spots and the "hottest zone" was defined to evaluate the integrated contributions to SERS intensity of the two factors. In the conventional shrink-adsorption mode, the contributions of the molecule number and gap size are competitive when the gap width is comparable with the target molecule size, which leads to oscillating behavior of SERS intensity versus gap size, and it is analyte molecule size dependent. This result suggests that engineering hot spots should be target molecule directed to achieve ultrasensitive detection. In the proposed adsorption-shrink mode, the contributions of the molecule number and gap size are synergistic, which makes the detection ability of the adsorption-shrink mode attains a single-molecule (SM) level. Excellent performance of the adsorption-shrink SERS strategy benefits detection of trace level pollutants in complex environments. Detection ranges for contaminants with different metal affinity, such as thiram, malachite green (MG), and formaldehyde, are as low as parts per billion, even down to parts per trillion.
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Affiliation(s)
- Hui Lu
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Li Zhu
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Yu Lu
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Jingting Su
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Ruohu Zhang
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
| | - Yiping Cui
- Advanced Photonics Center, School of Electronic Science & Engineering , Southeast University , Nanjing 210096 , Jiangsu , China
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10
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Murugesan B, Yang J. Tunable Coffee Ring Formation on Polycarbonate Nanofiber Film for Sensitive SERS Detection of Phenylalanine in Urine. ACS OMEGA 2019; 4:14928-14936. [PMID: 31552333 PMCID: PMC6751712 DOI: 10.1021/acsomega.9b01686] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 08/21/2019] [Indexed: 05/24/2023]
Abstract
A new method based on the coffee ring effect was developed for improving the sensitivity, simplicity, and robustness of surface-enhanced Raman scattering (SERS) in determining trace levels of analytes. In this method, a polyvinylpyrrolidone (PVP)-stabilized silver colloidal (AgC) solution was first prepared and mixed with a sample solution. Following deposition of the mixture solution on a solid substrate with a rough surface, a coffee ring was formed once the solvent had evaporated. The formation of a coffee ring not only concentrated the analyte but also reduced the space between silver nanoparticles (AgNPs) to strengthen the hotspot effect, thereby considerably improving SERS sensitivity. To strengthen the coffee ring effect further, the surface roughness of the solid support and PVP content of the AgC solution were investigated. The results indicated that an increase in surface roughness reduced the size of the coffee rings, whereas the addition of PVP not only stabilized the AgNPs but also improved the compactness of the coffee rings. When applying the proposed method to determine the phenylalanine (Phe) level in urine for rapid screening of the phenylketonuria disorder, strong chemical interference from uric acid (UA), which is a major component in urine, was observed. To minimize the interference from UA, ZnO powder was applied to the urine sample to adsorb UA prior to SERS detection. After cleaning by using ZnO, the SERS signals of Phe were revealed for quantitative purposes. Under the optimized conditions, both the sensitivity and reproducibility of SERS measurement considerably improved. Quantitative analyses revealed that the developed method is highly feasible for the rapid determination of Phe in real samples.
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Affiliation(s)
| | - Jyisy Yang
- E-mail: . Phone: +886-422840411 ext.
514. Fax: +886-422862547
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11
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Preparation of metal-polymer nanocomposites by chemical reduction of metal ions: functions of polymer matrices. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1646-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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12
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Lu H, Zhu L, Zhang C, Chen K, Cui Y. Mixing Assisted “Hot Spots” Occupying SERS Strategy for Highly Sensitive In Situ Study. Anal Chem 2018. [DOI: 10.1021/acs.analchem.7b04929] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Hui Lu
- Advanced Photonics Center, Southeast University, Nanjing, Jiangsu 210096, China
| | - Li Zhu
- Advanced Photonics Center, Southeast University, Nanjing, Jiangsu 210096, China
| | - Chuanlong Zhang
- Advanced Photonics Center, Southeast University, Nanjing, Jiangsu 210096, China
| | - Kexiang Chen
- Advanced Photonics Center, Southeast University, Nanjing, Jiangsu 210096, China
| | - Yiping Cui
- Advanced Photonics Center, Southeast University, Nanjing, Jiangsu 210096, China
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Nitrogen dots as reductant and stabilizer for the synthesis of AgNPs/N-dots nanocomposites for efficient surface-enhanced Raman scattering detection. Talanta 2018; 178:515-521. [DOI: 10.1016/j.talanta.2017.09.072] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/26/2017] [Accepted: 09/26/2017] [Indexed: 12/30/2022]
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Amari H, Guerrouache M, Mahouche-Chergui S, Abderrahim R, Carbonnier B. 2-Aminothiazole-functionalized triazine-modified polystyrene decorated with gold nanoparticles as composite catalyst for the reduction of 4-nitrophenol. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.10.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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15
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Yue S, Sun X, Wang N, Wang Y, Wang Y, Xu Z, Chen M, Wang J. SERS-Fluorescence Dual-Mode pH-Sensing Method Based on Janus Microparticles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39699-39707. [PMID: 29063750 DOI: 10.1021/acsami.7b13321] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A surface-enhanced Raman scattering (SERS)-fluorescence dual-mode pH-sensing method based on Janus microgels was developed, which combined the advantages of high specificity offered by SERS and fast imaging afforded by fluorescence. Dual-mode probes, pH-dependent 4-mercaptobenzoic acid, and carbon dots were individually encapsulated in the independent hemispheres of Janus microparticles fabricated via a centrifugal microfluidic chip. On the basis of the obvious volumetric change of hydrogels in different pHs, the Janus microparticles were successfully applied for sensitive and reliable pH measurement from 1.0 to 8.0, and the two hemispheres showed no obvious interference. The proposed method addressed the limitation that sole use of the SERS-based pH sensing usually failed in strong acidic media. The gastric juice pH and extracellular pH change were measured separately in vitro using the Janus microparticles, which confirmed the validity of microgels for pH sensing. The microparticles exhibited good stability, reversibility, biocompatibility, and ideal semipermeability for avoiding protein contamination, and they have the potential to be implantable sensors to continuously monitor pH in vivo.
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Affiliation(s)
- Shuai Yue
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
| | - Xiaoting Sun
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
| | - Ning Wang
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
| | - Yaning Wang
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
| | - Yue Wang
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
| | - Zhangrun Xu
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
| | - Mingli Chen
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
| | - Jianhua Wang
- Research Center for Analytical Sciences, Northeastern University , Shenyang 110819, P. R. China
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Liu Y, Li Y, Kang Y, Shen Q, Liu X, Zhou J. Silver Nanoparticle Generators: Silicon Dioxide Microspheres. Chemistry 2017; 23:6244-6248. [PMID: 28233401 DOI: 10.1002/chem.201606013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Indexed: 12/22/2022]
Abstract
A green and simple approach has been developed to synthesize un-coated Ag nanoparticles (AgNPs) in situ on the surface of thiol-group-functionalized silica dioxide microspheres (TSMs) in the aqueous solution. As soon as the Ag+ ions attach onto the surface of TSMs, nucleation and growth of AgNPs can spontaneously complete within one minute without other reducing agents or capping agents. The main reason is that the self-assembled silane-layer formed by mercaptosilane molecules could reduce the Ag0 formation energy, transport electrons efficiently, improve the nucleation density, and protect AgNPs against oxidation. Thus, the supported AgNPs show excellent chemical/photochemical stability in air and solution. Meanwhile, the size of as-prepared AgNPs could be controlled by tuning the concentration of Ag+ ions. This process provides a general route to generate bare AgNPs on the surface of silica dioxide in situ, which might be extended to other materials and is promising in developing novel methodologies for making supported noble metal NPs with desired structure and properties.
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Affiliation(s)
- Yan Liu
- Department of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin, 132022, P. R. China.,State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yingdi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yanlei Kang
- State Key Laboratory of Industrial Control Technology, Research Center for Analytical Instrumentation, College of Control Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, P. R. China
| | - Qihui Shen
- Department of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin, 132022, P. R. China.,State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xiaoyang Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jianguang Zhou
- State Key Laboratory of Industrial Control Technology, Research Center for Analytical Instrumentation, College of Control Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, P. R. China
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