@article{rather_vallabhuneni_pyrch_barrubeeah_pillai_taassob_castellano_kota_2024, title={Color morphing surfaces with effective chemical shielding}, volume={15}, ISSN={["2041-1723"]}, url={https://doi.org/10.1038/s41467-024-48154-y}, DOI={10.1038/s41467-024-48154-y}, abstractNote={Abstract Color morphing refers to color change in response to an environmental stimulus. Photochromic materials allow color morphing in response to light, but almost all photochromic materials suffer from degradation when exposed to moist/humid environments or harsh chemical environments. One way of overcoming this challenge is by imparting chemical shielding to the color morphing materials via superomniphobicity. However, simultaneously imparting color morphing and superomniphobicity, both surface properties, requires a rational design. In this work, we systematically design color morphing surfaces with superomniphobicity through an appropriate combination of a photochromic dye, a low surface energy material, and a polymer in a suitable solvent (for one-pot synthesis), applied through spray coating (for the desired texture). We also investigate the influence of polymer polarity and material composition on color morphing kinetics and superomniphobicity. Our color morphing surfaces with effective chemical shielding can be designed with a wide variety of photochromic and thermochromic pigments and applied on a wide variety of substrates. We envision that such surfaces will have a wide range of applications including camouflage soldier fabrics/apparel for chem-bio warfare, color morphing soft robots, rewritable color patterns, optical data storage, and ophthalmic sun screening.}, number={1}, journal={NATURE COMMUNICATIONS}, author={Rather, Adil Majeed and Vallabhuneni, Sravanthi and Pyrch, Austin J. and Barrubeeah, Mohammed and Pillai, Sreekiran and Taassob, Arsalan and Castellano, Felix N. and Kota, Arun Kumar}, year={2024}, month={May} } @article{tanweer_iqbal_rather_alam_2024, title={Zinc Oxide/Moringa Oleifera Gum-Grafted L-Methionine-Functionalized Polyaniline Bionanocomposites for Water Purification}, volume={16}, ISSN={["2073-4441"]}, url={https://doi.org/10.3390/w16182576}, DOI={10.3390/w16182576}, abstractNote={This study evaluates the preparation of novel ternary functional adsorbents based on polyaniline, zinc oxide nanoparticles, and moringa oleifera gum to produce zinc oxide/Moringa oleifera gum-grafted L-methionine-functionalized polyaniline bionanocomposites (ZM-g-Pani) and employed to sequestrate divalent metal ions (Cd2+, Hg2+ and Pb2+) from wastewater samples. The morphological and structural properties of ZM-g-Pani were exploited using FT-IR, FE-SEM/EDS, TEM, and XRD. FT-IR and FE-SEM studies show that the as prepared nanocomposite has an abundant number of reactive groups and a porous structure, thus demonstrating outstanding divalent metal cation removal. FT-IR study confirms that the attachment of L-methionine to polyaniline is facilitated by the C-S linkage. Both TEM and FE-SEM techniques confirmed the clustered granules of ZnO over the surface of polyaniline, which ultimately provided more surface area to adsorb metal ions. The study demonstrated that Cd2+, Hg2+ and Pb2+ ions could undergo physical sorption and chemisorption simultaneously during the adsorption process. The maximum adsorption capacity was 840.33, 497.51, and 497.51 mg/g for Cd2+, Hg2+, and Pb2+, respectively. The impact of co-existing ions, including NO3−, PO43−, SO42−, Cl−, Na+, Cu2+, and Al3+, showed that there were no notable alterations in the adsorption of the selected metal ions with ZM-g-Pani. ZM-g-Pani showed eight successive regeneration cycles for Cd2+, Hg2+, and Pb2+ with more than 85% removal efficiency.}, number={18}, journal={WATER}, author={Tanweer, Mohd Saquib and Iqbal, Zafar and Rather, Adil Majeed and Alam, Masood}, year={2024}, month={Sep} } @article{sutherland_rather_sabino_vallabhuneni_wang_popat_kota_2023, title={Hemp-Based Sustainable Slippery Surfaces: Icephobic and Antithrombotic Properties}, volume={11}, ISSN={["2168-0485"]}, url={https://doi.org/10.1021/acssuschemeng.2c06233}, DOI={10.1021/acssuschemeng.2c06233}, abstractNote={With the passage of the 2018 Farm Bill that removed hemp from the Controlled Substances Act altogether, production of hemp is experiencing a renaissance. Building on this revival and re-emergence of hemp, we designed and fabricated hemp-based sustainable and robust slippery surfaces by coating hemp paper with beeswax and subsequently infusing it with hemp oil. A wide variety of aqueous liquids and beverages easily slide on our hemp-based sustainable slippery surfaces, without leaving a trace. We also fabricated hemp-based sustainable slippery surfaces using different textured metals. Our hemp-based sustainable slippery metal surfaces display good icephobic and antithrombotic properties. With these attributes, we envision that our hemp-based sustainable slippery surfaces will pave the path to more safe, non-toxic, and biodegradable or recyclable slippery surfaces for applications in food packaging, anti-icing or de-icing coatings, and antithrombotic medical devices.}, number={6}, journal={ACS SUSTAINABLE CHEMISTRY & ENGINEERING}, author={Sutherland, Daniel J. and Rather, Adil M. and Sabino, Roberta M. and Vallabhuneni, Sravanthi and Wang, Wei and Popat, Ketul C. and Kota, Arun K.}, year={2023}, month={Feb} } @article{rather_wani_ahmad_shaari_rather_2023, title={Superior Photocatalytic Dye Degradation and Adsorption Efficiency of Rgo-Mwcnt Modified Zno-Al2o3 Nanocomposites}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85162824166&partnerID=MN8TOARS}, DOI={10.2139/ssrn.4485407}, abstractNote={In this study, ZnO-Al2O3 nanoparticles were successfully grafted on rGO/MWCNT (ZnO-Al2O3-rGO/MWCNT) via the hydrothermal process. This nanohybrid material has been characterized by FTIR, XRD, SEM, TEM, and BET analysis. The as-prepared nanomaterial has been explored to remove multiple organic dyes via photocatalytic degradation and adsorption processes. ZnO-Al2O3-rGO/MWCNT has displayed excellent photocatalytic degradation for Congo Red and Rose Bengal dyes from the aqueous solution. In addition to the degradation, this nanomaterial has also shown excellent removal efficiency for Sudan III dye via the adsorption process. It is observed that 30 ppm Congo red dye was degraded to 90 % within 1h, while 20 ppm rose Bengal dye was degraded to 80 % within 1.5 h. The kinetics of degradation for both these dyes is followed well by the pseudo-first-order model. Furthermore, ZnO-Al2O3-rGO/MWCNT was explored for the adsorption of Sudan III and displayed an outstanding removal capacity (220 mg g-1) compared with bare catalyst ZnO-Al2O3 (72 mg g-1). The effect of dye concentration, pH, and temperature on Sudan adsorption onto ZnO-Al2O3 and ZnO-Al2O3-rGO/MWCNT was also studied. The adsorption of Sudan III dye follows pseudo-second-order kinetic and Langmuir isotherm models. The thermodynamic parameters were computed by studying the temperature-dependent adsorption isotherms, which indicate the sorption of Sudan adsorption on the catalyst is endothermic and spontaneous. This suggests that ZnO-Al2O3-rGO/MWCNT could be a great choice of material for removing highly toxic dyes from wastewater during treatment.}, journal={SSRN}, author={Rather, R.A. and Wani, A.A. and Ahmad, N. and Shaari, N. and Rather, A.M.}, year={2023} } @article{xu_chang_yao_zhang_dupont_rather_bao_wang_2022, title={Modularizable Liquid-Crystal-Based Open Surfaces Enable Programmable Chemical Transport and Feeding using Liquid Droplets}, volume={34}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85128187895&partnerID=MN8TOARS}, DOI={10.1002/adma.202108788}, abstractNote={AbstractDroplet‐based miniature reactors have attracted interest in both fundamental studies, for the unique reaction kinetics they enable, and applications in bio‐diagnosis and material synthesis. However, the precise and automatic feeding of chemicals, important for the delicate reactions in these miniaturized chemical reactors, either requires complex, high‐cost microfluidic devices or lacks the capability to maintain a pinning‐free droplet movement. Here, the design and synthesis of a new class of liquid crystal (LC)‐based open surfaces, which enable a controlled chemical release via a programmable LC phase transition without sacrificing the free transport of the droplets, are reported. It is demonstrated that their intrinsic slipperiness and self‐healing properties enable a modularizable assembly of LC surfaces that can be loaded with different chemicals to achieve a wide range of chemical reactions carried out within the droplets, including sequential and parallel chemical reactions, crystal growth, and polymer synthesis. Finally, an LC‐based chemical feeding device is developed that can automatically control the release of chemicals to direct the simultaneous differentiation of human induced pluripotent stem cells into endothelial progenitor cells and cardiomyocytes. Overall, these LC surfaces exhibit desirable levels of automation, responsiveness, and controllability for use in miniature droplet carriers and reactors.}, number={20}, journal={Advanced Materials}, author={Xu, Y. and Chang, Y. and Yao, Y. and Zhang, M. and Dupont, R.L. and Rather, A.M. and Bao, X. and Wang, X.}, year={2022} } @inbook{rather_xu_dupont_wang_2022, title={Polymeric Membranes in Wastewater Treatment}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85130564956&partnerID=MN8TOARS}, DOI={10.1007/978-981-16-3667-7_17}, booktitle={Nanoscale Engineering of Biomaterials: Properties and Applications}, author={Rather, A.M. and Xu, Y. and Dupont, R.L. and Wang, X.}, year={2022}, pages={487–515} } @article{rather_xu_chang_dupont_borbora_kara_fang_mamtani_zhang_yao_et al._2022, title={Stimuli-Responsive Liquid-Crystal-Infused Porous Surfaces for Manipulation of Underwater Gas Bubble Transport and Adhesion}, volume={34}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85125092907&partnerID=MN8TOARS}, DOI={10.1002/adma.202110085}, abstractNote={AbstractBiomimetic artificial surfaces that enable the manipulation of gas bubble mobility have been explored in a wide range of applications in nanomaterial synthesis, surface defouling, biomedical diagnostics, and therapeutics. Although many superhydrophobic surfaces and isotropic‐lubricant‐infused porous surfaces have been developed to manipulate gas bubbles, the simultaneous control over the adhesion and transport of gas bubbles underwater remains a challenge. Thermotropic liquid crystals (LCs), a class of structured fluids, provide an opportunity to tune the behavior of gas bubbles through LC mesophase transitions using a variety of external stimuli. Using this central idea, the design and synthesis of LC‐infused porous surfaces (LCIPS) is reported and the effects of the LC mesophase on the transport and adhesion of gas bubbles on LCIPS immersed in water elucidated. LCIPS are demonstrated to be a promising class of surfaces with an unprecedented level of responsiveness and functionality, which enables the design of cyanobacteria‐inspired object movement, smart catalysts, and bubble gating devices to sense and sort volatile organic compounds and control oxygen levels in biomimetic cell cultures.}, number={14}, journal={Advanced Materials}, author={Rather, A.M. and Xu, Y. and Chang, Y. and Dupont, R.L. and Borbora, A. and Kara, U.I. and Fang, J.-C. and Mamtani, R. and Zhang, M. and Yao, Y. and et al.}, year={2022} } @article{yao_bennett_xu_rather_li_cheung_bhanji_kreder_daniel_adera_et al._2022, title={Wettability-based ultrasensitive detection of amphiphiles through directed concentration at disordered regions in self-assembled monolayers}, volume={119}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85140271613&partnerID=MN8TOARS}, DOI={10.1073/pnas.2211042119}, abstractNote={Various forms of ecological monitoring and disease diagnosis rely upon the detection of amphiphiles, including lipids, lipopolysaccharides, and lipoproteins, at ultralow concentrations in small droplets. Although assays based on droplets’ wettability provide promising options in some cases, their reliance on the measurements of surface and bulk properties of whole droplets (e.g., contact angles, surface tensions) makes it difficult to monitor trace amounts of these amphiphiles within small-volume samples. Here, we report a design principle in which self-assembled monolayer–functionalized microstructured surfaces coated with silicone oil create locally disordered regions within a droplet’s contact lines to effectively concentrate amphiphiles within the areas that dominate the droplet static friction. Remarkably, such surfaces enable the ultrasensitive, naked-eye detection of amphiphiles through changes in the droplets’ sliding angles, even when the concentration is four to five orders of magnitude below their critical micelle concentration. We develop a thermodynamic model to explain the partitioning of amphiphiles at the contact line by their cooperative association within the disordered, loosely packed regions of the self-assembled monolayer. Based on this local analyte concentrating effect, we showcase laboratory-on-a-chip surfaces with positionally dependent pinning forces capable of both detecting industrially and biologically relevant amphiphiles (e.g., bacterial endotoxins), as well as sorting aqueous droplets into discrete groups based on their amphiphile concentrations. Furthermore, we demonstrate that the sliding behavior of amphiphile-laden aqueous droplets provides insight into the amphiphile’s effective length, thereby allowing these surfaces to discriminate between analytes with highly disparate molecular sizes.}, number={43}, journal={Proceedings of the National Academy of Sciences of the United States of America}, author={Yao, Y. and Bennett, R.K.A. and Xu, Y. and Rather, A.M. and Li, S. and Cheung, T.C. and Bhanji, A. and Kreder, M.J. and Daniel, D. and Adera, S. and et al.}, year={2022} } @article{shome_rather_borbora_srikrishnarka_baidya_pradeep_manna_2021, title={Design of a Waste Paper-Derived Chemically ‘Reactive’ and Durable Functional Material with Tailorable Mechanical Property Following an Ambient and Sustainable Chemical Approach}, volume={16}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85108334530&partnerID=MN8TOARS}, DOI={10.1002/asia.202100475}, abstractNote={AbstractControlled tailoring of mechanical property and wettability is important for designing various functional materials. The integration of these characteristics with waste materials is immensely challenging to achieve, however, it can provide sustainable solutions to combat relevant environmental pollutions and other relevant challenges. Here, the strategic conversion of discarded and valueless waste paper into functional products has been introduced following a catalyst‐free chemical approach to tailor both the mechanical property and water wettability at ambient conditions for sustainable waste management and controlling the relevant environmental pollution. In the current design, the controlled and appropriate silanization of waste paper allowed to modulate both the a) porosity and b) compressive modulus of the paper‐derived sponges. Further, the association of 1,4‐conjugate addition reaction between amine and acrylate groups allowed to obtain an unconventional waste paper‐derived chemically ‘reactive’ sponge. The appropriate covalent modification of the residual reactive acrylate groups with selected alkylamines at ambient conditions provided a facile basis to tailor the water wettability from moderate hydrophobicity, adhesive superhydrophobicity to non‐adhesive superhydrophobicity. The embedded superhydrophobicity in the waste paper‐derived sponge was capable of sustaining large physical deformations, severe physical abrasions, prolonged exposure to harsh aqueous conditions, etc. Further, the waste paper‐derived, extremely water‐repellent sponges and membranes were successfully extended for proof‐of‐concept demonstration of a practically relevant outdoor application, where the repetitive remediation of oil spillages has been demonstrated following both selective absorption (25 times) of oils and gravity‐driven filtration‐based (50 times) separation of oils from oil/water mixtures at different harsh aqueous scenarios.}, number={14}, journal={Chemistry - An Asian Journal}, author={Shome, A. and Rather, A.M. and Borbora, A. and Srikrishnarka, P. and Baidya, A. and Pradeep, T. and Manna, U.}, year={2021}, pages={1988–2001} } @article{xu_rather_yao_fang_mamtani_bennett_atta_adera_tkalec_wang_2021, title={Liquid crystal–based open surface microfluidics manipulate liquid mobility and chemical composition on demand}, volume={7}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85116613780&partnerID=MN8TOARS}, DOI={10.1126/sciadv.abi7607}, abstractNote={Liquid crystal surfaces enable manipulation of liquid mobility and cargo release via temperature, electrolytes, and light.}, number={40}, journal={Science Advances}, author={Xu, Yang and Rather, Adil M. and Yao, Yuxing and Fang, Jen-Chun and Mamtani, Rajdeep S. and Bennett, Robert K. A. and Atta, Richard G. and Adera, Solomon and Tkalec, Uroš and Wang, Xiaoguang}, year={2021} } @article{shome_moses_rather_mandal_manna_2021, title={Unconventional and Facile Fabrication of Chemically Reactive Silk Fibroin Sponges for Environmental Remediation}, volume={13}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85106494931&partnerID=MN8TOARS}, DOI={10.1021/acsami.1c03150}, abstractNote={Silk fibroin and silk microfibers, both derived from silk cocoon, have been widely used for prospective biomedical, energy, and environmental applications. However, various complex and catalyst-based approaches have been adopted for chemical modification and integration of different functionalities in silk fibroin-based materials. Here, both tailored water wettability and mechanical property have been associated with silk microfiber reinforced silk fibroin sponges (SMFRSFSs) through the strategic introduction of β-sheets and a facile and catalyst-free chemical reaction at ambient conditions. While the controlled tailoring of β-sheets in the silk fibroin skeletal framework of the sponges allowed us to modulate the compressive modulus, the 1,4-conjugate addition reaction between amine residues of silk (fiber and fibroin) and acrylate groups of a multifunctional cross-linker provided residual chemical reactivity. Further, the chemically "reactive" sponge was postmodified with the selected alkylamines to introduce a wide range of water wettability (from 36 to 161°) without affecting the mechanical property. Thereafter, the silk cocoon-derived and extremely water-repellent sponge was used for environment-friendly cleaning of oil spillages through selective absorption-based and filtration-based oil/water separation at different and severe aqueous conditions. This silk cocoon-derived mechanically tailorable and chemically reactive sponge could also be useful for various biomedical and energy-related applications.}, number={20}, journal={ACS Applied Materials and Interfaces}, author={Shome, A. and Moses, J.C. and Rather, A.M. and Mandal, B.B. and Manna, U.}, year={2021}, pages={24258–24271} } @article{rather_srikrishnarka_baidya_shome_pradeep_manna_2020, title={Evaluating the impact of tailored water wettability on performance of CO2 capture}, volume={3}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85096088520&partnerID=MN8TOARS}, DOI={10.1021/acsaem.0c01603}, abstractNote={The growing emission of CO2 is a severe cause of concern due to its adverse impact on the environment and climate change worldwide. In the past, various approaches, including synthesis of porous ma...}, number={11}, journal={ACS Applied Energy Materials}, author={Rather, A.M. and Srikrishnarka, P. and Baidya, A. and Shome, A. and Pradeep, T. and Manna, U.}, year={2020}, pages={10541–10549} } @article{shome_das_rawat_rather_manna_2020, title={Reduction of imine-based cross-linkages to achieve sustainable underwater superoleophobicity that performs under challenging conditions}, volume={8}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85089305602&partnerID=MN8TOARS}, DOI={10.1039/d0ta04426a}, abstractNote={A simple and scalable reduction of GA-crosslinked BSA coating on a fibrous substrate, provided a highly sustainable underwater superolephobic coating that is capable of separating crude oil and other refined oils at practically relevant and severe conditions.}, number={30}, journal={Journal of Materials Chemistry A}, author={Shome, A. and Das, A. and Rawat, N. and Rather, A.M. and Manna, U.}, year={2020}, pages={15148–15156} } @article{xu_rather_song_fang_dupont_kara_chang_paulson_qin_bao_et al._2020, title={Ultrasensitive and Selective Detection of SARS-CoV-2 Using Thermotropic Liquid Crystals and Image-Based Machine Learning}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85112099105&partnerID=MN8TOARS}, DOI={10.2139/ssrn.3682267}, abstractNote={Rapid, robust virus detection techniques with ultrahigh sensitivity and selectivity are required for the outbreak of the pandemic coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). Here, we report that femtomolar concentrations of single-stranded ribonucleic acid (ssRNA) of SARS-CoV-2 trigger ordering transitions in liquid crystal (LC) films decorated with cationic surfactants and complementary 15-mer single-stranded deoxyribonucleic acid (ssDNA) probes. More importantly, the sensitivity of the LC to the severe acute respiratory syndrome (SARS) ssRNA, with a 3 base pair-mismatch compared to the SARS-CoV-2 ssRNA, was measured to decrease by seven orders of magnitude, suggesting that the LC ordering transitions depend strongly on the targeted oligonucleotide sequence. Finally, we designed a LC-based diagnostic kit and a smartphone-based application (App) to enable automatic detection of SARS-CoV-2 ssRNA, which can be used for reliable self-test of SARS-CoV-2 at home without the need for complex equipment or procedures.Funding: J.P. and X.W. thank the funding support by the startup funds of The Ohio State University (OSU) and X.W. thanks OSU Institute for Materials Research Kickstart Facility Grant. X.B. thanks the funding support by the startup funds of Davidson School of Chemical Engineering at Purdue University. S.S. and R.Q. thanks the funding support by Office of Naval Research (ONR Grant N00014-17-1-2928).Conflict of Interest: The Ohio State University has filed a patent application (Application Number 63066000) on the work described in this manuscript. The inventors listed on the patent application are X.W., X.B., Q.R., X.Y. and A.M.R. The authors declare no other competing interests.}, journal={SSRN}, author={Xu, Y. and Rather, A.M. and Song, S. and Fang, J.-C. and Dupont, R.L. and Kara, U.I. and Chang, Y. and Paulson, J.A. and Qin, R. and Bao, X. and et al.}, year={2020} } @article{xu_rather_song_fang_dupont_kara_chang_paulson_qin_bao_et al._2020, title={Ultrasensitive and Selective Detection of SARS-CoV-2 Using Thermotropic Liquid Crystals and Image-Based Machine Learning}, volume={1}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85100662670&partnerID=MN8TOARS}, DOI={10.1016/j.xcrp.2020.100276}, abstractNote={Rapid, robust virus-detection techniques with ultrahigh sensitivity and selectivity are required for the outbreak of the pandemic coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). Here, we report that the femtomolar concentrations of single-stranded ribonucleic acid (ssRNA) of SARS-CoV-2 trigger ordering transitions in liquid crystal (LC) films decorated with cationic surfactant and complementary 15-mer single-stranded deoxyribonucleic acid (ssDNA) probe. More importantly, the sensitivity of the LC to the SARS ssRNA, with a 3-bp mismatch compared to the SARS-CoV-2 ssRNA, is measured to decrease by seven orders of magnitude, suggesting that the LC ordering transitions depend strongly on the targeted oligonucleotide sequence. Finally, we design a LC-based diagnostic kit and a smartphone-based application (app) to enable automatic detection of SARS-CoV-2 ssRNA, which could be used for reliable self-test of SARS-CoV-2 at home without the need for complex equipment or procedures.}, number={12}, journal={Cell Reports Physical Science}, author={Xu, Y. and Rather, A.M. and Song, S. and Fang, J.-C. and Dupont, R.L. and Kara, U.I. and Chang, Y. and Paulson, J.A. and Qin, R. and Bao, X. and et al.}, year={2020} } @article{shome_maji_rather_yashwanth_patel_manna_2019, title={A Scalable Chemical Approach for the Synthesis of a Highly Tolerant and Efficient Oil Absorbent}, volume={14}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85074076807&partnerID=MN8TOARS}, DOI={10.1002/asia.201901102}, abstractNote={AbstractIn the past, bio‐inspired extreme water repellent property has been strategically embedded on commercially available sponges for developing selective oil absorbents. However, most of the reported materials lack physical and chemical durability, limiting their applicability at practically harsh settings. Herein, a stable dispersion of polymeric nanocomplexes was exploited to achieve a chemically reactive coating on the highly compressible melamine foam. A superhydrophobic melamine foam (SMF) was achieved after post‐covalent modification of the reactive coating through 1,4‐conjugate addition reaction at ambient conditions. The durability of the embedded extreme water repellent property in the as‐modified melamine foam has been elaborately demonstrated through exposing it to severe physical manipulations, chemically harsh aqueous media including pH 1, pH 12, surfactant contaminated water, river water, seawater and prolonged UV irradiation. Thus, the highly tolerant SMF was utilized as an efficient oil absorbent wherein oils of varying densities could be selectively recovered from an oil/water interface with high (e.g., 137 g g−1 for chloroform and 83 g g−1 for diesel) oil absorption capacity. Moreover, the selective oil absorption capacity of the as‐synthesized material remained unaffected at practically relevant severe chemical and physical settings, and the extreme water repellency of the material remained unaltered even after repetitive (at least 50 cycles) use for oil/water separation.}, number={24}, journal={Chemistry - An Asian Journal}, author={Shome, A. and Maji, K. and Rather, A.M. and Yashwanth, A. and Patel, D.K. and Manna, U.}, year={2019}, pages={4732–4740} } @article{shome_rather_manna_2019, title={Chemically reactive protein nanoparticles for synthesis of a durable and deformable superhydrophobic material}, volume={1}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85072040750&partnerID=MN8TOARS}, DOI={10.1039/c9na00031c}, abstractNote={A naturally derived approach is introduced for the synthesis of a nature-inspired, highly compressible and extremely water repellent material. The BSA protein derived highly tolerant superhydrophobic cotton was successfully applied in eco-friendly remediation of various oil contaminants selectively from aqueous phases.}, number={5}, journal={Nanoscale Advances}, author={Shome, A. and Rather, A.M. and Manna, U.}, year={2019}, pages={1746–1753} } @article{shome_rather_ghosal_bhunia_mandal_manna_2019, title={Rational Chemical Engineering in Natural Protein Derived Functional Interface}, volume={7}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85064391871&partnerID=MN8TOARS}, DOI={10.1021/acssuschemeng.9b00501}, abstractNote={Catalyst-free and readily chemically reactive functional coatings that have immense prospects in various relevant applications are unprecedentedly synthesized directly using naturally existing bovine serum albumin (BSA), where facile Michael addition reaction between amine and acrylate groups provided a simple basis for the covalent integration of deposited BSA and rendered residual chemical reactivity to the protein derived coating. Such chemically reactive BSA based coating was further extended for tailoring various water wettability, including biomimicked superhydrophobicity through appropriate chemical optimizations, and the chemically modulated water wettability was rationally utilized for controlling the rate of release of selected drugs (aspirin and tetracycline) from days to months. The released drug (tetracycline) from the superhydrophobic cotton remained highly bioactive and prevented the proliferation of bacteria (Escherichia coli and Staphylococcus aureus). Further, the synthesized BSA based s...}, number={8}, journal={ACS Sustainable Chemistry and Engineering}, author={Shome, A. and Rather, A.M. and Ghosal, A. and Bhunia, B.K. and Mandal, B.B. and Manna, U.}, year={2019}, pages={7502–7509} } @article{rather_shome_kumar_bhunia_mandal_srivastava_manna_2018, title={Alkali metal-ion assisted Michael addition reaction in controlled tailoring of topography in a superhydrophobic polymeric monolith}, volume={6}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85053529143&partnerID=MN8TOARS}, DOI={10.1039/c8ta06329j}, abstractNote={An alkali metal ion assisted Michael addition reaction between acrylate and amine groups is strategically exploited in the synthesis of a chemically reactive and tailored hierarchical topography for addressing important fundamental aspects of biomimicked interfaces.}, number={35}, journal={Journal of Materials Chemistry A}, author={Rather, A.M. and Shome, A. and Kumar, S. and Bhunia, B.K. and Mandal, B.B. and Srivastava, H.K. and Manna, U.}, year={2018}, pages={17019–17031} } @article{shome_rather_manna_2018, title={Aloe vera mucilage derived highly tolerant underwater superoleophobic coatings}, volume={6}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85056997437&partnerID=MN8TOARS}, DOI={10.1039/c8ta08481e}, abstractNote={An aloe vera mucilage (AVM) derived highly tolerant and stretchable fish-scale-mimicked coating is introduced by the strategic use of Michael addition reaction. The naturally derived and nature-inspired coating is capable of sustaining various challenging exposures—without compromising the embedded underwater superoleophobicity.}, number={45}, journal={Journal of Materials Chemistry A}, author={Shome, A. and Rather, A.M. and Manna, U.}, year={2018}, pages={22465–22471} } @article{rather_shome_bhunia_panuganti_mandal_manna_2019, title={Correction: Simultaneous and controlled release of two different bioactive small molecules from nature inspired single material (Journal of Materials Chemistry B (2018) 6 (7692–7702) DOI: 10.1039/C8TB02406E)}, volume={7}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85059529567&partnerID=MN8TOARS}, DOI={10.1039/c8tb90182a}, abstractNote={Correction for ‘Simultaneous and controlled release of two different bioactive small molecules from nature inspired single material’ by Adil M. Rather et al., J. Mater. Chem. B, 2018, 6, 7692–7702.}, number={2}, journal={Journal of Materials Chemistry B}, author={Rather, A.M. and Shome, A. and Bhunia, B.K. and Panuganti, A. and Mandal, B.B. and Manna, U.}, year={2019}, pages={346} } @article{rather_manna_2018, title={Green and Rapid Synthesis of Durable and Super-Oil (under Water) and Water (in Air) Repellent Interfaces}, volume={10}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85049673867&partnerID=MN8TOARS}, DOI={10.1021/acsami.8b06924}, abstractNote={In this letter, a single polymer is rapidly and covalently transformed into a chemically reactive and functional bulk polymeric coatings through a catalyst-free mutual chemical reaction between acrylates and amine groups at ambient condition-in the absence of any external reaction solvent, which is unprecedented in the literature. This facile and green chemical approach provided a common basis for achieving two distinct biomimicked wettabilities-that are superhydrophobicity (lotus-leaf mimicked) in air and superoleophobicity (fish-scale inspired) under water. The essential chemistry that conferred bioinspired wettability was optimized in the hierarchically featured polymeric material by postcovalent modulation of chemically reactive polymeric material with primary-amine-containing small moleculess, glucamine and octadecylamine. The inherently sticky and "chemically reactive" polymeric material having appropriate hierarchical topography is highly capable of providing substrate-independent (irrespective of chemical compositions and mechanical strength of the substrates) stable coatings with robust bioinspired (i.e., lotus leaf and fish scale) wettability.}, number={28}, journal={ACS Applied Materials and Interfaces}, author={Rather, A.M. and Manna, U.}, year={2018}, pages={23451–23457} } @article{rather_shome_bhunia_panuganti_mandal_manna_2018, title={Simultaneous and controlled release of two different bioactive small molecules from nature inspired single material}, volume={6}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85057569462&partnerID=MN8TOARS}, DOI={10.1039/c8tb02406e}, abstractNote={Simultaneous and extended (over 6 months) release of two different bioactive small molecules from single polymeric material was successfully achieved through strategic use of metastable trapped air for the first time.}, number={46}, journal={Journal of Materials Chemistry B}, author={Rather, A.M. and Shome, A. and Bhunia, B.K. and Panuganti, A. and Mandal, B.B. and Manna, U.}, year={2018}, pages={7692–7702} } @article{das_sengupta_deka_rather_raidongia_manna_2018, title={Synthesis of fish scale and lotus leaf mimicking, stretchable and durable multilayers}, volume={6}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85051918791&partnerID=MN8TOARS}, DOI={10.1039/c8ta04984j}, abstractNote={Stretchable and nature inspired multilayers are developed through covalent and layer-by-layer integration of functional nanomaterials. These nanomaterials are amino graphene oxide and a chemically reactive polymeric nanocomplex, and the synthesized material is capable of sustaining various forms of severe physical damage and large tensile deformations simultaneously.}, number={33}, journal={Journal of Materials Chemistry A}, author={Das, A. and Sengupta, S. and Deka, J. and Rather, A.M. and Raidongia, K. and Manna, U.}, year={2018}, pages={15993–16002} } @article{rather_mahato_maji_gogoi_manna_2017, title={'Reactive' nano-complex coated medical cotton: A facile avenue for tailored release of small molecules}, volume={9}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85032935077&partnerID=MN8TOARS}, DOI={10.1039/c7nr03990e}, abstractNote={Here, the medical-cotton that coated with amine ‘reactive’ nanocomplex was exploited in tailoring the release rate (from 1 day to 100 days) of post-loaded small molecules through appropriate modulation of water wettability.}, number={42}, journal={Nanoscale}, author={Rather, A.M. and Mahato, S. and Maji, K. and Gogoi, N. and Manna, U.}, year={2017}, pages={16154–16165} } @article{parbat_gaffar_rather_gupta_manna_2017, title={A general and facile chemical avenue for the controlled and extreme regulation of water wettability in air and oil wettability under water}, volume={8}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85027891795&partnerID=MN8TOARS}, DOI={10.1039/c7sc02296d}, abstractNote={A chemical approach for the regulation of oil (under water) and water (in air) wettability. The super-wetting properties are highly durable at harsh physical/chemical settings.}, number={9}, journal={Chemical Science}, author={Parbat, D. and Gaffar, S. and Rather, A.M. and Gupta, A. and Manna, U.}, year={2017}, pages={6542–6554} } @article{rather_jana_begum_srivastava_manna_2017, title={Exceptional control on physical properties of a polymeric material through alcoholic solvent-mediated environment-friendly Michael addition reaction}, volume={19}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85030712501&partnerID=MN8TOARS}, DOI={10.1039/c7gc02286g}, abstractNote={An eco-friendly approach to synthesize the polymeric materials with various controlled physical properties is explored in this work through appropriate selection of the reaction medium (i.e. alcoholic solvent).}, number={19}, journal={Green Chemistry}, author={Rather, A.M. and Jana, N. and Begum, S. and Srivastava, H.K. and Manna, U.}, year={2017}, pages={4527–4532} } @article{das_deka_rather_bhunia_saikia_mandal_raidongia_manna_2017, title={Strategic Formulation of Graphene Oxide Sheets for Flexible Monoliths and Robust Polymeric Coatings Embedded with Durable Bioinspired Wettability †}, volume={9}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85037744278&partnerID=MN8TOARS}, DOI={10.1021/acsami.7b14028}, abstractNote={Artificial bioinspired superhydrophobicity, which is generally developed through appropriate optimization of chemistry and hierarchical topography, is being recognized for its immense prospective applications related to environment and healthcare. Nevertheless, the weak interfacial interactions that are associated with the fabrication of such special interfaces often provide delicate biomimicked wettability, and the embedded antifouling property collapses on exposure to harsh and complex aqueous phases and also after regular physical deformations, including bending, creasing, etc. Eventually, such materials with potential antifouling property became less relevant for practical applications. Here, a facile, catalyst-free, and robust 1,4-conjugate addition reaction has been strategically exploited for appropriate covalent integration of modified graphene oxide to developing polymeric materials with (1) tunable mechanical properties and (2) durable antifouling property, which are capable of performing both in air and under oil. Furthermore, this approach provided a facile basis for (3) engineering a superhydrophobic monolith into arbitrary free-standing shapes and (4) decorating various flexible (metal, synthetic plastic, etc.) and rigid (glass, wood, etc.) substrates with thick and durable three-dimensional superhydrophobic coatings. The synthesized superhydrophobic monoliths and polymeric coatings with controlled mechanical properties are appropriate to withstand different physical insults, including twisting, creasing, and even physical erosion of the material, without compromising the embedded antiwetting property. The materials are also equally resistant to various harsh chemical environments, and the embedded antifouling property remained unperturbed even after continuous exposure to extremes of pH (pH 1 and pH 11), artificial sea water for a minimum of 30 days. These flexible and formable free-standing monoliths and stable polymeric coatings that are extremely water-repellent both in air and under oil, are of utmost importance owing to their suitability in practical circumstances and robust nature.}, number={48}, journal={ACS Applied Materials and Interfaces}, author={Das, A. and Deka, J. and Rather, A.M. and Bhunia, B.K. and Saikia, P.P. and Mandal, B.B. and Raidongia, K. and Manna, U.}, year={2017}, pages={42354–42365} } @article{rather_manna_2017, title={Stretchable and durable superhydrophobicity that acts both in air and under oil}, volume={5}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85026221342&partnerID=MN8TOARS}, DOI={10.1039/c7ta04073c}, abstractNote={A facile and robust Michael addition reaction is strategically exploited here, to develop a highly stretchable (150% deformation) superhydrophobic material. This material strongly repels aqueous phase both in air and under oil and with impeccable physical/chemical durability, and is appropriate for rapid separation of both heavy and light oils from complex aqueous phases with above 99% efficiency.}, number={29}, journal={Journal of Materials Chemistry A}, author={Rather, A.M. and Manna, U.}, year={2017}, pages={15208–15216} } @article{rather_jana_hazarika_manna_2017, title={Sustainable polymeric material for the facile and repetitive removal of oil-spills through the complementary use of both selective-absorption and active-filtration processes}, volume={5}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85034240678&partnerID=MN8TOARS}, DOI={10.1039/c7ta07982f}, abstractNote={Superhydrophobic cotton (SHC) with exemplary physical and chemical durability is capable of removing repeatedly diverse types of oil contaminants, through both the selective absorption and gravity-driven active-filtration processes.}, number={44}, journal={Journal of Materials Chemistry A}, author={Rather, A.M. and Jana, N. and Hazarika, P. and Manna, U.}, year={2017}, pages={23339–23348} } @article{rather_manna_2016, title={Facile Synthesis of Tunable and Durable Bulk Superhydrophobic Material from Amine "reactive" Polymeric Gel}, volume={28}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85006257596&partnerID=MN8TOARS}, DOI={10.1021/acs.chemmater.6b03862}, abstractNote={Materials with extremes of water wettability are of potential interest in various fundamental and applied contexts. However, often, poor chemical and physical durabitity of conventional thin special wettable materials stands in the way of prospective applications of this property at practical settings. A chemically “reactive” polymeric gel material is introduced here, and advantage is taken of the robust and facile 1,4-Michael addition reaction between acrylate and primary amine groups to develop a chemically cross-linked and bulk (including interior and surface) superhydrophobic material. A mixture of dipentaerythritol pentaacrylate and branched poly(ethylenimine) (BPEI) can rapidly form a self-standing gel network. On removal of solvent molecules, the synthesized gel network provides a highly porous and reactive polymeric matrix that can be further modified with a variety of small molecules to tailor the liquid water wettability on the synthesized material. This approach provides a facile and rapid proc...}, number={23}, journal={Chemistry of Materials}, author={Rather, A.M. and Manna, U.}, year={2016}, pages={8689–8699} }