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Hastuti FW, Kim MH. Silver nanoprism-mediated colourimetric sensing probe for efficient detection of Pd(II) and Pt(II) ions in water and reuse of formed bimetallic nanoprisms. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 314:124234. [PMID: 38569388 DOI: 10.1016/j.saa.2024.124234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/17/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Sensitive and selective methods for detecting Pd(II) and Pt(II) ions in water are crucial for environmental monitoring and remediation. Although traditional methods for detection of Pd(II) and Pt(II) ions are accurate and sensitive, they face substantial challenges due to high costs, reliance on specialised equipment and limited field applicability, thereby presenting notable limitations. In this study, we introduce a novel colourimetric sensing probe designed specifically to identify Pd(II) and Pt(II) ions in aqueous solutions. This probe utilises the enhanced chemical stability of Ag nanoprisms achieved through Pd or Pt deposition on their surfaces. Our approach features exceptionally low limits of detection of 2.6 nM for Pd(II) and 0.3 nM for Pt(II), indicating an impressive detection range. Furthermore, the probe's ease of use, cost-effectiveness and compatibility with both naked eye and UV-Vis spectrophotometric detection make it a selective, reliable and affordable option for point-of-care analysis. Beyond its impressive sensitivity for ion detection, this methodology offers the additional benefit of enabling the on-demand synthesis of customised bimetallic catalysts. The synthesised Ag/Pd and Ag/Pt bimetallic nanoprisms demonstrate promising catalytic potential for environmental remediation. This advancement paves the way for efficient recycling and reuse of valuable Pd(II) and Pt(II) ions in various catalytic applications.
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Affiliation(s)
- Fenni Woro Hastuti
- Department of Polymer Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Mun Ho Kim
- Department of Polymer Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea.
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2
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Fan W, Guo L, Qu Y, Zhuang Q, Wang Y. Copper-crosslinked carbon dot hydrogel nanozyme for colorimetric - tert-butylhydroquinone biosensing and smartphone-assisted visual ratiometric assay. JOURNAL OF HAZARDOUS MATERIALS 2024; 468:133795. [PMID: 38382342 DOI: 10.1016/j.jhazmat.2024.133795] [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: 11/23/2023] [Revised: 02/03/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
Due to the potential environment and health risks of tert-butylhydroquinone (TBHQ), rapid, portable, selective and sensitive quantification of TBHQ in food and the environment are strictly essential. With this in mind, a selective, sensitive and rapid colorimetric TBHQ biosensor was developed using rationally designed copper-crosslinked carbon dot hydrogel nanozyme (BC-CDs@Cu). The BC-CDs@Cu had a high peroxidase-like activity toward the chromogenic reaction of hydrogen peroxide with dopamine via the generation of hydroxyl radicals and electron transfer process. The Michaelis-Menten constants of BC-CDs@Cu for dopamine and hydrogen peroxide were determined to be 0.86 and 0.91 mM. The added TBHQ markedly inhibited the BC-CDs@Cu-catalyzed dopamine oxidation by hydrogen peroxide, ascribing to the highly effective and rapid scavenging of hydroxyl radicals and the suppression of electron transfer. The inhibitory extent was applied for well quantifying TBHQ in the range of 0.5 - 20.0 μM with a detection limit of 70 nM. The proposed biosensor had a negligible response to various interfering substances. Moreover, a smartphone-assisted visual ratiometric biosensor was fabricated, and used to accomplish portable quantification of TBHQ in edible oils and water samples. This work reveals the enormous potential of hydrogel nanozyme, which will open a new situation for the detection of hazardous substances.
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Affiliation(s)
- Wenfang Fan
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Luohua Guo
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Yun Qu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Qianfen Zhuang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Yong Wang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410019, China.
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3
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Ma BL, Zhang ZL. A point-of-care solid-phase colorimetric sensor based on the enzyme-induced metallization for ALP detection. Talanta 2024; 268:125365. [PMID: 37918249 DOI: 10.1016/j.talanta.2023.125365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
Alkaline phosphatase (ALP) is a crucial biomarker for clinical diagnosis, which is closely related to the physiological homeostasis regulation process of human body. And the abnormal level of ALP is associated with numerous diseases, such as liver dysfunction, bone diseases, diabetes, and so on. In order to meet the demand of personalized healthcare, it is particularly important to develop a miniaturized point-of-care testing (POCT) device for ALP detection. Herein, a portable solid-phase colorimetric sensor based on enzyme-induced metallization signal amplification strategy was constructed for ALP detection. The AuNPs modified on the glass slides acted as crystal seeds, allowing Ag+ in the solution to be reduced and deposited on the surface of AuNPs, which further formed the gold core and silver shell (Au@Ag) complex and generated visual signals. The visual signals were recorded by a smartphone and quantified using open-source ImageJ software. Under the optimal conditions, the proposed method exhibited a good linear relationship from 2.0 to 16.0 pM, and the detection limit was as low as 0.9 pM. In addition, it was further successfully applied for ALP detection in non-transparent and complex samples (milk, different types of cells). A sensitive, low cost, rapid and convenient solid-phase sensor was developed for ALP detection, which was expected to provide a promising strategy for POCT devices.
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Affiliation(s)
- Bo-Ling Ma
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Zhi-Ling Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China.
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4
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Kim J, Shim H, Kim YS, Kim MH. Colorimetric sensing of Cu(II) ions in water on the basis of selective chemical etching of EDA-capped Ag nanoplates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 297:122750. [PMID: 37104909 DOI: 10.1016/j.saa.2023.122750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 04/09/2023] [Accepted: 04/12/2023] [Indexed: 05/14/2023]
Abstract
Cu(II) ions are one of the essential mineral elements in the human body, but can pose a substantial health risk to people exposed to high concentrations of Cu(II) ions over a long period. Therefore, the ability to detect Cu(II) ions in drinking water is important. In this study, a novel colorimetric sensing probe for the easy and onsite detection of Cu(II) ions in drinking water was developed. The probe was constructed through selective chemical etching of triangular Ag nanoplates with tunable localized surface plasmon resonance (LSPR) properties. Ethylenediamine (EDA) was used as an organic capping agent to improve the chemical stability of triangular Ag nanoplates. Selective chemical etching of the EDA-capped Ag nanoplates in the presence of Cu(II) ions as a result of the formation of a coordination complex between the EDA and Cu(II) ions caused remarkable changes in the nanoplates' LSPR characteristics. On the basis of this phenomenon, a novel colorimetric sensing probe capable of detecting Cu(II) ions in drinking water at concentrations above the safety limit was developed. Our findings were also extended to develop a portable and paper-based sensing probe with good long-term stability to overcome the shortcomings of liquid-phase colorimetric sensors without requiring a spectrometer. The proposed colorimetric sensing probes provide accurate results even with a real sample and offer numerous advantages over conventional sensing platforms, including clearly distinguishable color changes that can be observed by the naked eye; thus, the proposed probes can be used for the selective, reliable, and low-cost point-of-care detection of Cu(II) ions in water.
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Affiliation(s)
- Jeongeun Kim
- Department of Polymer Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Hyeobo Shim
- Department of Polymer Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Young-Seok Kim
- Display Research Center, Korea Electronics Technology Institute, 25, Saenari-ro, Bundang-gu, Seoungnam-si, Kyounggi-do 13509, Republic of Korea.
| | - Mun Ho Kim
- Department of Polymer Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea.
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Mao W, Cai X, Pan R, Tang S, Yang F, Cui Y, Sun J, Shen W. Light-enhanced transparent hydrogel for uric acid and glucose detection by four different analytical platforms. Anal Chim Acta 2023; 1239:340717. [PMID: 36628770 DOI: 10.1016/j.aca.2022.340717] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/13/2022] [Accepted: 12/08/2022] [Indexed: 12/13/2022]
Abstract
The lack of solid-phase media limits the portability of colorimetric sensing platforms. In this study, a series of transparent polyvinyl alcohol (PVA) hydrogels encapsulated antimony tin oxide nanoparticles (ATO NPs) and 3,3',5,5'-tetramethylbenzidine (TMB) were developed as the solid-phase sensing media for glucose and uric acid. Under the conditions of H2O2 and UV light, the hydrogel presented a multicatalytic ability (photo Fenton-like and peroxidase-like activities), which accelerated the oxidation of TMB, turning the hydrogel from colorless to blue and finally enhancing the detection signal. The plasticity of the hydrogel allowed it to be designed into various shapes (membrane, microsphere etc.) to adapt multiple detection platforms (a liquid/solid-phase UV spectrophotometer, a NanoPhotometer, and smartphone spectroscopy). The hydrogel sensing media exhibited excellent tunability and enhanced the photocatalytic ability. The proposed material was successfully applied to detect glucose and uric acids in real samples by four detection platforms to evaluate its practicability.
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Affiliation(s)
- Wei Mao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Xingwei Cai
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Ruirong Pan
- Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu Province, PR China
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China.
| | - Fu Yang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Yanjuan Cui
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China
| | - Jun Sun
- School of Chemistry, The University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, PR China.
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Fang X, Jin X, Ma X, Guan L, Chen W, She M. Rational construction of deep-red fluorescent probe for rapid detection of HClO and its application in bioimaging and paper-based sensing. Anal Bioanal Chem 2022; 414:5887-5897. [PMID: 35676562 DOI: 10.1007/s00216-022-04154-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 01/04/2023]
Abstract
Hypochlorous acid (HClO), the core bactericidal substance of the human immune system, plays a vital role in many physiological and pathological processes in the human body. In this work, we designed and synthesized a novel deep-red fluorescent probe TCF-ClO for the determination of hypochlorous acid through theoretical analysis. The results showed that probe TCF-ClO exhibited excellent characteristics of long-wavelength emission (635 nm), fast response (< 1 min), and low detection limit (24 nM). In addition, it had been successfully used for imaging of HClO in living HeLa cells. More importantly, the TCF-ClO composited paper-based sensing material was successfully constructed. The RGB/gray value was obtained from a mobile phone and computer, which could achieve the quantitative detection of HClO, with a linear detection range of 0-50 μM and a detection limit of 1.09 μM (RGB mode)/3.38 μM (gray mode). The function of the paper-based sensor extended from qualitative to quantitative detection of HClO, and it is expected to become a portable device widely used in the environmental area.
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Affiliation(s)
- Xingliang Fang
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, People's Republic of China
| | - Xilang Jin
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, People's Republic of China.
| | - Xuehao Ma
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, People's Republic of China
| | - Li Guan
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China
| | - Weixing Chen
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, People's Republic of China
| | - Mengyao She
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education; Biomedicine Key Laboratory of Shaanxi Province; Lab of Tissue Engineering, the College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, Shaanxi Province, 710069, People's Republic of China.
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7
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Choi SH, Lee JS, Choi WJ, Seo JW, Choi SJ. Nanomaterials for IoT Sensing Platforms and Point-of-Care Applications in South Korea. SENSORS (BASEL, SWITZERLAND) 2022; 22:610. [PMID: 35062576 PMCID: PMC8781063 DOI: 10.3390/s22020610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 05/03/2023]
Abstract
Herein, state-of-the-art research advances in South Korea regarding the development of chemical sensing materials and fully integrated Internet of Things (IoT) sensing platforms were comprehensively reviewed for verifying the applicability of such sensing systems in point-of-care testing (POCT). Various organic/inorganic nanomaterials were synthesized and characterized to understand their fundamental chemical sensing mechanisms upon exposure to target analytes. Moreover, the applicability of nanomaterials integrated with IoT-based signal transducers for the real-time and on-site analysis of chemical species was verified. In this review, we focused on the development of noble nanostructures and signal transduction techniques for use in IoT sensing platforms, and based on their applications, such systems were classified into gas sensors, ion sensors, and biosensors. A future perspective for the development of chemical sensors was discussed for application to next-generation POCT systems that facilitate rapid and multiplexed screening of various analytes.
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Affiliation(s)
- Seung-Ho Choi
- Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea; (S.-H.C.); (J.-S.L.); (W.-J.C.); (J.-W.S.)
| | - Joon-Seok Lee
- Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea; (S.-H.C.); (J.-S.L.); (W.-J.C.); (J.-W.S.)
| | - Won-Jun Choi
- Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea; (S.-H.C.); (J.-S.L.); (W.-J.C.); (J.-W.S.)
| | - Jae-Woo Seo
- Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea; (S.-H.C.); (J.-S.L.); (W.-J.C.); (J.-W.S.)
| | - Seon-Jin Choi
- Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea; (S.-H.C.); (J.-S.L.); (W.-J.C.); (J.-W.S.)
- Institute of Nano Science and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
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8
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Selective Aggregation of Silver Nanoprisms Induced by Monohydrogen Phosphate and its Application for Colorimetric Detection of Chromium (III) Ions. JOURNAL OF ANALYSIS AND TESTING 2021. [DOI: 10.1007/s41664-021-00183-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Jeong JH, Pradyast A, Shim H, Woo HC, Kim MH. Completely green synthesis of rose-shaped Au nanostructures and their catalytic applications. RSC Adv 2021; 11:34589-34598. [PMID: 35494773 PMCID: PMC9042714 DOI: 10.1039/d1ra06805a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/18/2021] [Indexed: 12/17/2022] Open
Abstract
A novel protocol for the one-pot, template/seed-free, and completely green synthesis of rose-shaped Au nanostructures with unique three-dimensional hierarchical structures was developed.
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Affiliation(s)
- Jae Hwan Jeong
- Department of Polymer Engineering, Pukyong National Univeristy, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Astrini Pradyast
- Department of Polymer Engineering, Pukyong National Univeristy, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Hyeonbo Shim
- Department of Polymer Engineering, Pukyong National Univeristy, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Hee-Chul Woo
- Department of Chemical Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Mun Ho Kim
- Department of Polymer Engineering, Pukyong National Univeristy, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
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Jeong JH, Woo HC, Kim MH. One-step green synthesis of 2D Ag-dendrite-embedded biopolymer hydrogel beads as a catalytic reactor. RSC Adv 2021; 11:22826-22834. [PMID: 35480445 PMCID: PMC9034341 DOI: 10.1039/d1ra03536c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/24/2021] [Indexed: 01/26/2023] Open
Abstract
Silver (Ag) nanocrystals with a dendritic structure have attracted intensive attention because of their unique structural properties, which include abundant sharp corners and edges that provide a large number of active atoms. However, the synthesis of Ag dendrites via a simple and environmentally friendly method under ambient conditions remains a challenge. In this paper, we report a simple water-based green method for the production of biopolymer hydrogel beads embedded with Ag dendrites without using an additional reducing agent, stabilizer, or crosslinking agent. The obtained Ag dendrites exhibit a unique two-dimensional (2D) structure rather than a conventional three-dimensional structure because Ag+ ions are reduced on the surface of the solid-phase hydrogel beads and grow into crystals. Reasonable mechanisms explaining the formation of the nanocomposite hydrogel beads and the formation of 2D Ag dendrites in the hydrogel are proposed on the basis of our observations and results. The hydrogel beads embedded the 2D Ag dendrites were used as an environmentally friendly catalytic reactor, and their catalytic performance was evaluated by adopting the reduction of 4-nitrophenol to 4-aminophenol with NaBH4 as a model reaction. Alginate hydrogel beads embedded with 2D Ag dendrites were synthesized by simply adding aqueous alginate droplets to an aqueous AgNO3 solution.![]()
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Affiliation(s)
- Jae Hwan Jeong
- Department of Polymer Engineering
- Pukyong National Univeristy
- Busan 48513
- Republic of Korea
| | - Hee-Chul Woo
- Department of Chemical Engineering
- Pukyong National University
- Busan 48513
- Republic of Korea
| | - Mun Ho Kim
- Department of Polymer Engineering
- Pukyong National Univeristy
- Busan 48513
- Republic of Korea
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