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Sarma H, Mandal S, Borbora A, Das J, Kumar S, Manna U. Self-healable, Tolerant Superaerophobic Coating for Improving Electrochemical Hydrogen Production. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309359. [PMID: 38243839 DOI: 10.1002/smll.202309359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/25/2023] [Indexed: 01/22/2024]
Abstract
Gas-evolving electrodes often suffer from the blocking of catalytic active sites-due to unwanted and unavoidable adhesion of generated gas bubbles, which elevates the overpotential for the electrochemical hydrogen evolution reaction (HER)- by raising the resistance of the electrode. Here, a catalyst-free and self-healable superaerophobic coating having ultra-low bubble adhesion is introduced for achieving significantly depleted overpotentials of 209 and 506 mV at both low (50 mA cm-2) and high (500 mA cm-2) current densities, respectively, compared to a bare nickel-foam electrode. The optimized coating ensured an early detachment of the generated tiny (0.8 ± 0.1 mm) gas bubble-and thus, prevented the undesired rise in resistance of the coated electrode. The systematic association of physical (i.e., ionic interactions, H-bonding, etc.) cross-linkage, β-amino ester type covalent cross-linkage and reinforced halloysite nano clay enables the design of such functional material embedded with essential characteristics-including improved mechanical (toughness of 63.7 kJ m-3, and tensile modulus of 26 kPa) property and chemical (extremes of pH (1 and 14), salinity, etc.) stability, rapid (<10 min) self-healing ability (even at alkaline condition) and desired bubble-wettability (bubble contact angle of 158.2 ± 0.2°) with ultralow force (4.2 ± 0.4 µN) of bubble adhesion.
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Affiliation(s)
- Hrisikesh Sarma
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
| | - Subhankar Mandal
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
| | - Angana Borbora
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
| | - Jaysri Das
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
| | - Saurav Kumar
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
| | - Uttam Manna
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
- School of Health Science & Technology, Indian Institute of Technology Guwahati, Kamrup, Assam, 781039, India
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Wang Z, Xiao J, Zhao T, Zhang C, Wang L, He N, Kong Q, Wang X. Transient regulation of gel properties by chemical reaction networks. Chem Commun (Camb) 2023; 59:9818-9831. [PMID: 37497715 DOI: 10.1039/d3cc02479b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Transient regulation of gel properties by chemical reaction networks (CRNs) represents an emerging and effective strategy to program or temporally control the structures, properties, and functions of gel materials in a self-regulated manner. CRNs provide significant opportunities to construct complex or sustainable gels with excellent dynamic features, thus expanding the application scope of these materials. CRN-based methods for transiently regulating the gel properties are receiving increasing attention, and the related fields are worth further studying. This feature article focuses on the CRN-mediated transient regulation of six properties of gels, which are transient gelation, transient liquefaction of gels, transient assembly of macroscopic gels, temporary actuation of gels, transient healing ability of kinetically inert gels, and cascade reaction-based self-reporting of external stimuli. Recent advances that showcase the six properties of gels controlled by CRNs are featured, the characterization and structural elucidation of gels are detailed, and the significance, achievements, and expectations of this field are discussed. The strategy of transient regulation of gel properties via CRNs is potentially useful for building the next generation of adaptive functional materials.
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Affiliation(s)
- Zhongrui Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Jing Xiao
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Ting Zhao
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Chunxiao Zhang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Luping Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Nan He
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Qingming Kong
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
| | - Xu Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.
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Guo Y, Wang R, Wei C, Li Y, Fang T, Tao T. Carbon quantum dots for fluorescent detection of nitrite: A review. Food Chem 2023; 415:135749. [PMID: 36848836 DOI: 10.1016/j.foodchem.2023.135749] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/31/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023]
Abstract
NO2- is commonly found in foods and the environment, and excessive intake of NO2- poses serious hazards to human health. Thus, rapid and accurate assay of NO2- is of considerable significance. Traditional instrumental approaches for detection of NO2- faced with limitations of expensive instruments and complicated operations. Current gold standards for sensing NO2- are Griess assay and 2,3-diaminonaphthalene assay, which suffer from slow detection kinetics and bad water solubility. The newly emerged carbon quantum dots (CQDs) exhibit integrated merits including easy fabrication, low-cost, high quantum yield, excellent photostability, tunable emission behavior, good water solubility and low toxicity, which make CQDs be widely applied to fluorescent assay of NO2-. In this review, synthetic strategies of CQDs are briefly presented. Advances of CQDs for fluorescent detection of NO2- are systematically highlighted. Lastly, the challenges and perspectives in the field are discussed.
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Affiliation(s)
- Yongming Guo
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Ruiqing Wang
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Chengwei Wei
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Yijin Li
- Reading Academy, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Tiancheng Fang
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Tao Tao
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China.
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Zhang J, Abdulkhaleq AMA, Wang J, Zhou X. Rational design of a novel acryl-modified CQDs fluorescent probe for highly selective detection and imaging of cysteine in vitro and in vivo. Mikrochim Acta 2023; 190:331. [PMID: 37501043 DOI: 10.1007/s00604-023-05919-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023]
Abstract
A novel fluorescent nanoprobe CQDs-O-Acryl has been designed and synthesized to directly and accurately identify Cys over other biothiols in PBS (10 mM, pH 7.4) buffer. The carbon quantum dots (CQDs-OH) (λex/em maxima = 495/525 nm) were fabricated by a solvothermal method using resorcinol as the carbon source. The CQDs-O-Acryl was achieved through covalently grafting the acryloyl group on the surface of carbon quantum dots by nuclear reaction based on static quenching. The structure and morphology of CQDs-OH and CQDs-O-Acryl have been characterized by transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and UV-vis absorption spectroscopy. Upon the addition of Cys, the ester bond of CQDs-O-Acryl has been broken, and the free CQDs were released by conjugated addition and cyclization reactions successively, emitting strong green fluorescence at 525 nm (λex = 495 nm). Under the optimized conditions, CQDs-O-Acryl exhibited good sensing of Cys within the range 0.095-16 μM (the LOD of 0.095 μM). Due to the high sensitivity, reliability, fast fluorescence response (10 min), and low toxicity of CQDs-O-Acryl, it was successfully applied to fluorescence imaging of Cys in A549 cells and zebrafish.
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Affiliation(s)
- Jie Zhang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, 121001, People's Republic of China
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China
| | | | - Jun Wang
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China.
| | - Xibin Zhou
- College of Pharmacy, Jinzhou Medical University, Jinzhou, 121001, People's Republic of China.
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Dhar M, Kara UI, Das S, Xu Y, Mandal S, Dupont RL, Boerner EC, Chen B, Yao Y, Wang X, Manna U. Design of a self-cleanable multilevel anticounterfeiting interface through covalent chemical modulation. MATERIALS HORIZONS 2023; 10:2204-2214. [PMID: 37000456 DOI: 10.1039/d3mh00180f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Counterfeit products have posed a significant threat to consumers safety and the global economy. To address this issue, extensive studies have been exploring the use of coatings with unclonable, microscale features for authentication purposes. However, the ease of readout, and the stability of these features against water, deposited dust, and wear, which are required for practical use, remain challenging. Here we report a novel class of chemically functionalizable coatings with a combination of a physically unclonable porous topography and distinct physiochemical properties (e.g., fluorescence, water wettability, and water adhesion) obtained through orthogonal chemical modifications (i.e., 1,4-conjugate addition reaction and Schiff-base reaction at ambient conditions). Unprecedentedly, a self-cleanable and physically unclonable coating is introduced to develop a multilevel anticounterfeiting interface. We demonstrate that the authentication of the fluorescent porous topography can be verified using deep learning. More importantly, the spatially selective chemical modifications can be read with the naked eye via underwater exposure and UV light illumination. Overall, the results reported in this work provide a facile basis for designing functional surfaces capable of independent and multilevel decryption of authenticity.
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Affiliation(s)
- Manideepa Dhar
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Ufuoma I Kara
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Supriya Das
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Yang Xu
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Sohini Mandal
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Robert L Dupont
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Eric C Boerner
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Boyuan Chen
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
| | - Yuxing Yao
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Xiaoguang Wang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
- Sustainability Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Uttam Manna
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
- Centre for Nanotechnology, School of Health Science and Technology, Indian Institute of Technology Guwahati, Kamrup, Assam 781039, India
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Ma W, Yan B. Monosystem Discriminative Sensor toward Inorganic Anions via Incorporating Three Different Luminescent Channels in Metal-Organic Frameworks. Anal Chem 2022; 94:5866-5874. [PMID: 35384662 DOI: 10.1021/acs.analchem.2c00019] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Because there are great demands of distinguishing multiple chemically similar analytes, chemical sensors for multivariate analyses have been developed rapidly in the past few decades. However, designing luminescent discriminative sensors based on a monosystem has been a challenge until now. In this work, we first develop a triemitting luminescent discriminative platform named RGB@TLU-2 with three different emission centers: blue-emitting center (BDC-NH2), green-emitting (Tb@BDC-SO3-), and red-emitting center (rhodamine B, RhB). The different luminescent mechanisms (ligand emission, LMET emission, guest emission) in these emission centers endow RGB@TLU-2 with high cross-reactivity, which is essential for discriminating applications. To balance the three luminescent centers, all variables in the synthesis process are optimized carefully. Surprisingly, the RGB@TLU-2 shows a variety of luminescent response patterns when immersed into 12 inorganic anions. Two unsupervised multidimensional analysis methods, (principal component analysis and hierarchical cluster analysis), are used to explore the relationship between these anions. On the basis of the luminescent response of analytes, 5 response modes are obtained and 12 inorganic anions are classified into 6 groups. The sensing mechanisms are discussed in detail. Detection limits of typical anions Cr2O72-, PO43-, ClO-, and NO2- are calculated as 2.895 × 10-8, 6.353 × 10-6, 1.134 × 10-5, and 4.56 × 10-4 mol/L, respectively. Furthermore, the RGB@TLU-2 also shows the ability to distinguish 4 (Fe3+, Fe2+, Cu2+ and Cr3+) of 12 metal ions and 3 (Trp, Pro, and Arg) of 11 amino acids.
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Affiliation(s)
- Wanpeng Ma
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Bing Yan
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
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7
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Biswakarma D, Dey N, Bhattacharya S. A biocompatible hydrogel as a template for oxidative decomposition reactions: a chemodosimetric analysis and in vitro imaging of hypochlorite. Chem Sci 2022; 13:2286-2295. [PMID: 35310481 PMCID: PMC8864679 DOI: 10.1039/d1sc05424d] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 01/06/2022] [Indexed: 11/21/2022] Open
Abstract
The self-assembly properties of new biocompatible, thermoreversible fluorescent hydrogels, composed of amino acid residues have been reported. A unique gel-to-sol transition is triggered by chemodosimetric interaction in the presence of hypochlorite.
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Affiliation(s)
- Dipen Biswakarma
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, Karnataka 560012, India
- Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
| | - Nilanjan Dey
- Department of Chemistry, BITS Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad-500078, India
| | - Santanu Bhattacharya
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, Karnataka 560012, India
- School of Applied & Interdisciplinary Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
- Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru 560064, Karnataka, India
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Das S, Singh R, Das A, Bag S, Paily RP, Manna U. Abrasion tolerant, non-stretchable and super-water-repellent conductive & ultrasensitive pattern for identifying slow, fast, weak and strong human motions under diverse conditions. MATERIALS HORIZONS 2021; 8:2851-2858. [PMID: 34498655 DOI: 10.1039/d1mh01071a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The conversion of mechanical deformation into electrical signals is a widely used principle for various relevant applications. Facile & scalable fabrication, ultrahigh-sensitivity, low-response time and uninterrupted performance under severe conditions are hallmarks of an efficient strain-sensor that would be suitable for realistic application. In the past, various approaches were introduced to achieve high gauge factor-mainly associated with a large tensile deformation. But, in reality, a flexible strain sensor that displays a high gauge factor at low applied strain and remains efficient under practically relevant diverse and challenging conditions would be more appropriate for unambiguous and effective monitoring of human motions and other relevant applications. But, a low-strain sensor with ultrahigh sensitivity and durability is yet to be introduced in the literature. Here, a metal-free, chemically reactive and conductive ink is unprecedentedly introduced following a 1,4-conjugate addition reaction. Furthermore, a strategic integration of a chemically reactive porous paper with the prepared conductive ink allowed the development of a chemically reactive and conductive interface that allowed desired post covalent modification with selected alkylamines under ambient conditions. Taking advantage of the spatially selective deposition of the prepared ink on chemically recative paper and the ability of post covalent modification of the prepared ink, an abrasion tolerant superhydrophobic & conductive patterned interface was developed for achieving a low-strain (below 0.2%) based flexible strain sensor with an ultrahigh sensitivity (gauge factor ∼18 300) and low response time (8 ms). The external low-strain induced cracks on the flexible & durable superhydrophobic and conductive patterned interface provided a facile basis for real-time & wireless monitoring of slow, fast, weak and strong human motions & expressions-under diverse conditions, including continuous aqueous exposures, physical abrasions etc.
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Affiliation(s)
- Supriya Das
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Rajan Singh
- Department of Electronics and Electrical Engineering, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Avijit Das
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Sudipta Bag
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Roy P Paily
- Department of Electronics and Electrical Engineering, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
- Centre for Nanotechnology, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
- School of Healthcare Science & Technology, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
| | - Uttam Manna
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
- Centre for Nanotechnology, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
- School of Healthcare Science & Technology, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
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Dhar M, Das A, Shome A, Borbora A, Manna U. Design of 'tolerant and hard' superhydrophobic coatings to freeze physical deformation. MATERIALS HORIZONS 2021; 8:2717-2725. [PMID: 34617554 DOI: 10.1039/d1mh00857a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
While the development of mechanically durable and abrasion tolerant superhydrophobicity on a rigid substrates itself remains a highly challenging task, the design of superhydrophobic coatings that can restrict both the tensile and compressive deformations of soft and deformable substrates is unprecedented-and such an approach would be of potential interest in various applied and fundamental contexts. In this communication, a reaction mixture was developed following a simple 1,4-conjugate addition reaction between selected small molecules and appropriate crosslinkers for achieving 'tolerant and hard' superhydrophobicity-which is not just capable of surviving under severe conditions-but also restricts both the tensile and compressive deformations of the selected soft substrates. The compressive and tensile moduli of the selected soft substrates increased by 2.2 × 104% and 1.8 × 104%, respectively, after the deposition of the appropriate reaction mixtures. Moreover, the integration of the crosslinkers in the reaction mixture provided a facile basis to resist the physical erosion/rupture of the selected soft substrates under severe abrasive conditions. Thus, a simple and elegant chemical approach not only controlled the mechanical properties of the porous and fibrous soft substrates under ambient conditions-but also provided highly tolerant superhydrophobicity-which likely leads to various outdoor applications.
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Affiliation(s)
- Manideepa Dhar
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Avijit Das
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Arpita Shome
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Angana Borbora
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
| | - Uttam Manna
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India.
- Centre for Nanotechnology, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
- School of Health Science & Technology, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
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