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Aritonang HF, Kamea OE, Koleangan H, Wuntu AD. Biotemplated synthesis of Ag-ZnO nanoparticles/bacterial cellulose nanocomposites for photocatalysis application. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1738470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Henry F. Aritonang
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado, Indonesia
| | - Olivia E. Kamea
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado, Indonesia
| | - Harry Koleangan
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado, Indonesia
| | - Audy D. Wuntu
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado, Indonesia
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Jang JS, Cho S, Han HJ, Song SW, Kim SJ, Koo WT, Kim DH, Jeong H, Jung YS, Kim ID. Universal Synthesis of Porous Inorganic Nanosheets via Graphene-Cellulose Templating Route. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34100-34108. [PMID: 31436079 DOI: 10.1021/acsami.9b11124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two-dimensional (2D) inorganic nanomaterials have attracted enormous interest in diverse research areas because of their intriguing physicochemical properties. However, reliable method for the synthesis and composition manipulation of polycrystalline inorganic nanosheets (NSs) are still considered grand challenges. Here, we report a robust synthetic route for producing various kinds of inorganic porous NSs with desired multiple components and precise compositional stoichiometry by employing tunicin, i.e., cellulose extracted from earth-abundant marine invertebrate shell waste. Cellulose fibrils can be tightly immobilized on graphene oxide (GO) NSs to form stable tunicin-loaded GO NSs, which are used as a sacrificial template for homogeneous adsorption of diverse metal precursors. After a subsequent pyrolysis process, 2D metallic or metal oxide NSs are formed without any structural collapse. The rationally designed tunicin-loaded GO NS templating route paves a new path for the simple preparation of multicompositional inorganic NSs for broad applications, including chemical sensing and electrocatalysis.
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Affiliation(s)
- Ji-Soo Jang
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Seunghee Cho
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Hyeuk Jin Han
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Seok-Won Song
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Sang-Joon Kim
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Won-Tae Koo
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Dong-Ha Kim
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Hyeonsu Jeong
- Institute of Advanced Composite Materials , Korea Institute of Science and Technology (KIST) , Chudong-ro 92, Bongdong-eup , Wanju-gun, Jeonrabuk-do , 565-905 , Republic of Korea
| | - Yeon Sik Jung
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Il Doo Kim
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology , 291. Daehak-ro , Yuseong-gu, Daejeon 305-701 , Republic of Korea
- Advanced Nanosensor Research Center , KI Nanocentury, KAIST , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
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Synthesis of Silver Nanoparticles Using Aqueous Extract of Medicinal Plants' ( Impatiens balsamina and Lantana camara) Fresh Leaves and Analysis of Antimicrobial Activity. Int J Microbiol 2019; 2019:8642303. [PMID: 31354833 PMCID: PMC6636566 DOI: 10.1155/2019/8642303] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 05/13/2019] [Accepted: 06/04/2019] [Indexed: 12/23/2022] Open
Abstract
Plant-mediated synthesis of nanomaterials has been increasingly gaining popularity due to its eco-friendly nature and cost-effectiveness. In the present study, we synthesized silver (Ag) nanoparticles using aqueous extracts of fresh leaves of Impatiens balsamina and Lantana camara medicinal plants as bioreducing agents. This method allowed the synthesis of nanoparticles, which was confirmed by ultraviolet-visible (UV-Vis) spectrophotometry and transmission electron microscopy (TEM). UV-Vis spectra and visual observation showed that the color of the fresh leaf extracts of L. camara and I. balsamina turned into grayish brown and brownish yellow, respectively, after treatment with Ag precursors. In addition, TEM analysis confirmed that AgNO3 solutions for all concentrations produced Ag nanoparticles and their average size was less than 24 nm. Moreover, aqueous leaf extracts of I. balsamina and L. camara were separately tested for their antimicrobial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria. The results showed that the bacterial growth was inhibited by the extracts containing Ag nanoparticles. Statistical calculation performed using the Tukey test showed that zones of inhibition for the two bacteria produced by the aqueous leaf extracts of L. camara containing 3 mM and 5 mM Ag precursors were not significantly different from that by ciprofloxacin as positive control. On the contrary, there was significant difference between the zone of inhibition for E. coli by ciprofloxacin and that by the extracts of I. balsamina leaves containing 3 mM and 5 mM Ag precursors. A similar result was observed on the zone of inhibition for S. aureus by the extracts of I. balsamina leaves containing 3 mM Ag precursor. It was shown that the aqueous extracts of fresh L. camara leaves containing Ag nanoparticles were comparable to ciprofloxacin in inhibiting bacterial growth.
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