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Peng X, Gan L, Zhai W, Chen X, Deng K, Duan W, Li W, Zeng Q. Two-dimensional self-assembly and co-assembly of two tetracarboxylic acid derivatives investigated by STM. NANOSCALE ADVANCES 2023; 5:4752-4757. [PMID: 37705796 PMCID: PMC10496876 DOI: 10.1039/d3na00389b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/03/2023] [Indexed: 09/15/2023]
Abstract
In this work, the two-dimensional self-assembly and co-assembly behaviors of two tetracarboxylic acid derivatives (H4BDETP and H4BTB) were investigated by scanning tunneling microscopy (STM). H4BDETP molecules self-assembled into linear nanostructures, and H4BTB molecules formed lamellar and tetragonal nanostructures. The formation of a H4BDETP/H4BTB co-assembly nanostructure was closely related to the deposition sequence of H4BDETP and H4BTB on highly oriented pyrolytic graphite (HOPG). The introduction of H4BTB into the self-assembly system of H4BDETP resulted in the emergence of the H4BDETP/H4BTB nanostructure, while the addition of H4BDETP had no effect on the self-assembly system of H4BTB and a H4BDETP/H4BTB co-assembly nanostructure was not obtained.
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Affiliation(s)
- Xuan Peng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST) Beijing 100190 China
- School of Science, Nanchang Institute of Technology Nanchang 330099 China
| | - Linlin Gan
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST) Beijing 100190 China
- Department of Chemistry, School of Science, Beijing Jiaotong University Beijing 100044 China
| | - Wenchao Zhai
- School of Science, Nanchang Institute of Technology Nanchang 330099 China
| | - Xiaoling Chen
- School of Science, Nanchang Institute of Technology Nanchang 330099 China
| | - Ke Deng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST) Beijing 100190 China
| | - Wubiao Duan
- Department of Chemistry, School of Science, Beijing Jiaotong University Beijing 100044 China
| | - Wei Li
- School of Science, Nanchang Institute of Technology Nanchang 330099 China
| | - Qingdao Zeng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST) Beijing 100190 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
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Kang M, Oderinde O, Han X, Fu G, Zhang Z. Development of oxidized hydroxyethyl cellulose-based hydrogel enabling unique mechanical, transparent and photochromic properties for contact lenses. Int J Biol Macromol 2021; 183:1162-1173. [PMID: 33971231 DOI: 10.1016/j.ijbiomac.2021.05.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 04/21/2021] [Accepted: 05/04/2021] [Indexed: 01/16/2023]
Abstract
With the development of smart devices, higher requirements are put forward for the stimuli-responsive materials. Stimuli-hydrogels as one kind of stimuli-responsive materials with hydrophilicity, demonstrate huge potential in developing intelligent devices for biomedical application. On this basis, we herein report that a sample method was devised to develop a novel composite hydrogel mainly based on oxidized hydroxyethyl cellulose and allyl co-polymer. Subsequently, a series of tests toward this oxidized hydroxyethyl cellulose-based hydrogel due to its structure and performance was applied. Here, the oxidized hydroxyethyl cellulose molecular chains were used as biomacromolecule templates to form Schiff base, borate and hydrogen bonds to obtain unique mechanical properties (fast recovery with almost no-hysteresis and remarkable compressive capacity), while a double bond functionalized spirooxazine (allyl spirooxazine derivative) was applied to endow photo- and pH sensitivity to the oxidized hydroxyethyl cellulose-based transparent hydrogel (T% = 93%) substrate. Furthermore, the oxidized hydroxyethyl cellulose-based hydrogel did exhibit good pH environment adaptability and noncytotoxicity in vitro test. Based on the advanced characteristics, the designed oxidized hydroxyethyl cellulose-based hydrogel has potential applications prospect in the development of safe, fashionable and pH- detectable contact lenses, thereby providing a new strategy for the development of smart, stylish contact lenses.
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Affiliation(s)
- Mengmeng Kang
- School of Materials Science and Engineering, Henan Normal University, No. 46, East of Construction Road, Xinxiang 453007, Henan Province, China
| | - Olayinka Oderinde
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu Province 211189, China
| | - Xuelian Han
- Hydron Contact Lens Co., Ltd, Danyang, Jiangsu 212331, China
| | - Guodong Fu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu Province 211189, China.
| | - Zhihong Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 166, Science Avenue, Zhengzhou, Henan Province 450002, China.
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Guo F, Zhou M, Xu J, Fein JB, Yu Q, Wang Y, Huang Q, Rong X. Glyphosate adsorption onto kaolinite and kaolinite-humic acid composites: Experimental and molecular dynamics studies. CHEMOSPHERE 2021; 263:127979. [PMID: 32841877 DOI: 10.1016/j.chemosphere.2020.127979] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/07/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
Glyphosate (PMG) has been the most widely used herbicide in the world, and its environmental mobility and fate are mainly controlled by interactions with mineral surfaces. In soil systems, kaolinite is typically associated with humic acids (HAs) in the form of mineral-HA complexes, and hence it is crucial to characterize the molecular-scale interactions that occur between PMG and kaolinite and kaolinite-HA complexes. Batch experiments, Fourier transform infrared spectrum (FTIR) and X-ray photoelectron spectroscopy (XPS), isothermal titration calorimetry (ITC), and molecular dynamics (MD) simulations were performed to decipher the molecular interactions between PMG and kaolinite and kaolinite-HA composites. Our results reveal that kaolinite-HA composites adsorb higher concentrations of PMG than does kaolinite alone, likely due to more adsorption sites existed on kaolinite-HA than on kaolinite. FTIR and XPS analysis reveal that the carboxyl, phosphonyl and amino groups of PMG interacted with kaolinite and kaolinite-humic acid via Hydrogen bonds. The ITC results and interaction energy calculations indicate that the adsorption of PMG onto the kaolinite-HA is more energetically favorable relative to that onto kaolinite. MD simulations suggest that the PMG molecule adsorbs parallel to the surface of kaolinite and the composites through hydrogen bonding. Humic acid increases the adsorption of PMG through the creation of H-bond networks between PMG, the kaolinite surface, and humic acid. The results from this study improve our molecular-level understanding of the interactions between PMG and two important components of soil systems, and hence yield valuable information for characterizing the fate and behavior of PMG in soil environments.
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Affiliation(s)
- Fayang Guo
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Min Zhou
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jingcheng Xu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jun Gong Road, Shanghai, 200093, PR China
| | - Jeremy B Fein
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Qiang Yu
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Yingwei Wang
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China
| | - Qiaoyun Huang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xingmin Rong
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.
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Stredansky M, Turco E, Feng Z, Costantini R, Comelli G, Verdini A, Floreano L, Morgante A, Dri C, Cossaro A. On-surface trapping of alkali atoms by crown ethers in ultra high vacuum. NANOSCALE ADVANCES 2019; 1:1721-1725. [PMID: 36134236 PMCID: PMC9419578 DOI: 10.1039/c9na00144a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/02/2019] [Indexed: 06/16/2023]
Abstract
Crown ethers, assembled into a regular 2D array via a chemical guest-host recognition process, have been successfully employed to trap sodium atoms on a surface, under ultra-high vacuum conditions.
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Affiliation(s)
- Matus Stredansky
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
- Dipartimento di Fisica, Università di Trieste via A. Valerio 2 I-34127 Trieste Italy
| | - Elia Turco
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
- Dipartimento di Fisica, Università di Trieste via A. Valerio 2 I-34127 Trieste Italy
| | - Zhijing Feng
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
- Dipartimento di Fisica, Università di Trieste via A. Valerio 2 I-34127 Trieste Italy
| | - Roberto Costantini
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
- Dipartimento di Fisica, Università di Trieste via A. Valerio 2 I-34127 Trieste Italy
| | - Giovanni Comelli
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
- Dipartimento di Fisica, Università di Trieste via A. Valerio 2 I-34127 Trieste Italy
| | - Alberto Verdini
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
| | - Luca Floreano
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
| | - Alberto Morgante
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
- Dipartimento di Fisica, Università di Trieste via A. Valerio 2 I-34127 Trieste Italy
| | - Carlo Dri
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
- Dipartimento di Fisica, Università di Trieste via A. Valerio 2 I-34127 Trieste Italy
| | - Albano Cossaro
- CNR-IOM Laboratorio TASC Basovizza SS-14, km 163.5 I-34012 Trieste Italy
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Supramolecular structural motifs in compounds of acetoguanamine and various carboxylic acids: N-H⋯O heterosynthons and N-H⋯N homosynthons. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Feng Z, Kladnik G, Comelli G, Dri C, Cossaro A. Growth of regular nanometric molecular arrays on a functional 2D template based on a chemical guest-host approach. NANOSCALE 2018; 10:2067-2072. [PMID: 29323391 DOI: 10.1039/c7nr08017d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A regular 2D array of crown molecules, which would spontaneously self-assemble into disordered molecular clusters, is obtained by exploiting a guest-host process, based on the chemical affinity between amino and carboxylic groups on a gold surface. First a carboxylic organic template is formed, which then serves as a host for amino-functionalized crown molecules. The amino-carboxylic interaction thereby drives the formation of a monolayer of guest molecules, regularly distributed at the nanometer scale, preventing their aggregation in unordered clusters observed on a bare gold surface. This method, which can be applied to other guest molecules, represents a novel route to overcome the shape-matching requirements of the standard guest-host architectures. Furthermore, it is intrinsically selective, due to the chemical nature of the anchoring process.
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Affiliation(s)
- Zhijing Feng
- Dipartimento di Fisica, Universitá di Trieste, via A. Valerio 2, I-34127 Trieste, Italy
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Feng Z, Velari S, Cossaro A, Castellarin-Cudia C, Verdini A, Vesselli E, Dri C, Peressi M, De Vita A, Comelli G. Trapping of Charged Gold Adatoms by Dimethyl Sulfoxide on a Gold Surface. ACS NANO 2015; 9:8697-709. [PMID: 26079254 DOI: 10.1021/acsnano.5b02284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report the formation of dimethyl sulfoxide (DMSO) molecular complexes on Au(111) enabled by native gold adatoms unusually linking the molecules via a bonding of ionic nature, yielding a mutual stabilization between molecules and adatom(s). DMSO is a widely used polar, aprotic solvent whose interaction with metal surfaces is not fully understood. By combining X-ray photoelectron spectroscopy, low temperature scanning tunneling microscopy, and density functional theory (DFT) calculations, we show that DMSO molecules form complexes made by up to four molecules arranged with adjacent oxygen terminations. DFT calculations reveal that most of the observed structures are accurately reproduced if, and only if, the negatively charged oxygen terminations are linked by one or two positively charged Au adatoms. A similar behavior was previously observed only in nonstoichiometric organic salt layers, fabricated using linkage alkali atoms and strongly electronegative molecules. These findings suggest a motif for anchoring organic adlayers of polar molecules on metal substrates and also provide nanoscale insight into the interaction of DMSO with gold.
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Affiliation(s)
- Zhijing Feng
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Simone Velari
- Engineering and Architecture Department, University of Trieste , Via A. Valerio 6/1, 34147 Trieste, Italy
| | - Albano Cossaro
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Carla Castellarin-Cudia
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Alberto Verdini
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Erik Vesselli
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Carlo Dri
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
| | - Maria Peressi
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- CNR-IOM DEMOCRITOS , Area Science Park, S.S. 14 km 163.5, 34149 Trieste, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Unità di ricerca di Trieste , Piazzale Europa 1, 34128 Trieste, Italy
| | - Alessandro De Vita
- Engineering and Architecture Department, University of Trieste , Via A. Valerio 6/1, 34147 Trieste, Italy
- Department of Physics, King's College London , Strand, London WC2R 2LS, United Kingdom
| | - Giovanni Comelli
- Physics Department, University of Trieste , Via A. Valerio 2, 34127 Trieste, Italy
- TASC Laboratory, Istituto Officina dei Materiali CNR-IOM , S.S. 14 km 163.5, 34149 Trieste, Italy
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