Mist harvesting using bioinspired polydopamine coating and microfabrication technology

Moazzam, Parisa; Tavassoli, Hossein; Razmjou, Amir; Warkiani, Majid Ebrahimi; Asadnia, Mohsen

doi:10.1016/j.desal.2017.12.023

Cited by 90 publications

(51 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This effect, combined with the hydrophilic nature of PEI compared to hydrophobic PBI, can create a surface with enhanced wetting properties. 37 This could improve the initial uptake of chloride ions and subsequent transport through the AEMs. The SEM and AFM images suggested successful embedding of PEI within the PBI backbone.…”

Section: Results and Discussionmentioning

confidence: 99%

Asymmetric Membrane Capacitive Deionization Using Anion-Exchange Membranes Based on Quaternized Polymer Blends

McNair

Cseri

Székely

et al. 2020

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Membrane capacitive deionization (MCDI) for water desalination is an innovative technique that could help to solve the global water scarcity problem. However, the development of the MCDI field is hindered by the limited choice of ion-exchange membranes. Desalination by MCDI removes the salt (solute) from the water (solvent); this can drastically reduce energy consumption compared to traditional desalination practices such as distillation. Herein, we outline the fabrication and characterization of quaternized anion-exchange membranes (AEMs) based on polymer blends of polyethylenimine (PEI) and polybenzimidazole (PBI) that provides an efficient membrane for MCDI. Flat sheet polymer membranes were prepared by solution casting, heat treatment, and phase inversion, followed by modification to impart anion-exchange character. Scanning electron microscopy (SEM), atomic force microscopy (AFM), nuclear magnetic resonance (NMR), and Fourier-transform infrared (FTIR) spectroscopy were used to characterize the morphology and chemical composition of the membranes. The as-prepared membranes displayed high ion-exchange capacity (IEC), hydrophilicity, permselectivity and low area resistance. Due to the addition of PEI, the high density of quaternary ammonium groups increased the IEC and permselectivity of the membranes, while reducing the area resistance relative to pristine PBI AEMs. Our PEI/PBI membranes were successfully employed in asymmetric MCDI for brackish water desalination and exhibited an increase in both salt adsorption capacity (>3×) and charge efficiency (>2×) relative to membrane-free CDI. The use of quaternized polymer blend membranes could help to achieve greater realization of industrial scale MCDI.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Asymmetric Membrane Capacitive Deionization Using Anion-Exchange Membranes Based on Quaternized Polymer Blends

McNair

Cseri

Székely

et al. 2020

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

“…Because of its structural simplicity and outstanding water collecting capability, the hydrophilic‐hydrophobic patterned surface on the back of Namib desert beetle is extremely intriguing to be mimicked as water collecting surfaces . (Super)hydrophilic bumps patterned on (super)hydrophobic surface behave as nucleation sites, and when the condensed droplets grow to a certain size, the droplets will coalesce.…”

Section: Applicationsmentioning

confidence: 99%

“…Because of its structural simplicity and outstanding water collecting capability, the hydrophilic-hydrophobic patterned surface on the back of Namib desert beetle [15,28,[234][235][236] is extremely intriguing to be mimicked as water collecting surfaces. [237][238][239][240][241][242] (Super)hydrophilic bumps patterned on (super)hydrophobic surface behave as nucleation sites, and when the condensed droplets grow to a certain size, the droplets will coalesce. Since water droplets can easily roll on hydrophobic areas, the beetle will tilt the body to transport the droplets to the mouth through the hydrophobic areas.…”

Section: Water Collectionmentioning

confidence: 99%

Micro‐/Nanostructured Interface for Liquid Manipulation and Its Applications

Duan

Zheng

Zhao

et al. 2019

Small

View full text Add to dashboard Cite

Understanding the relationship between liquid manipulation and micro‐/nanostructured interfaces has gained much attention due to the wide potential applications in many fields, such as chemical and biomedical assays, environmental protection, industry, and even daily life. Much work has been done to construct various materials with interfacial liquid manipulation abilities, leading to a range of interesting applications. Herein, different fabrication methods from the top‐down approach to the bottom‐up approach and subsequent surface modifications of micro‐/nanostructured interfaces are first introduced. Then, interactions between the surface and liquid, including liquid wetting, liquid transportation, and a number of corresponding models, together with the definition of hydrophilic/hydrophobic, oleophilic/olephobic, the definition and mechanism of superwetting, including superhydrophobicity, superhydrophilicity, and superoleophobicity, are presented. The micro‐/nanostructured interface, with major applications in self‐cleaning, antifogging, anti‐icing, anticorrosion, drag‐reduction, oil–water separation, water collection, droplet (micro)array, and surface‐directed liquid transport, is summarized, and the mechanisms underlying each application are discussed. Finally, the remaining challenges and future perspectives in this area are included.

show abstract

“…Therefore, major attention is currently focused on developing nucleic based POC testing as this exhibits a robust combination of accuracy and reliability. Microfluidics and microfabrication technologies offer significant advantages over conventional methods [116,117]. Since microfluidic devices can integrate different modules of pipetting, filtering, mixing, separating, and concentrating in a single miniaturized chip, they hold great promise as the future of low-cost POC testing devices featuring a rapid turnaround time (min) from sample-to-result [118].…”

Section: Future Direction and Outlookmentioning

confidence: 99%

Point of Care Diagnostics in the Age of COVID-19

et al. 2020

View full text Add to dashboard Cite

The recent outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its associated serious respiratory disease, coronavirus disease 2019 (COVID-19), poses a major threat to global public health. Owing to the lack of vaccine and effective treatments, many countries have been overwhelmed with an exponential spread of the virus and surge in the number of confirmed COVID-19 cases. Current standard diagnostic methods are inadequate for widespread testing as they suffer from prolonged turn-around times (>12 h) and mostly rely on high-biosafety-level laboratories and well-trained technicians. Point-of-care (POC) tests have the potential to vastly improve healthcare in several ways, ranging from enabling earlier detection and easier monitoring of disease to reaching remote populations. In recent years, the field of POC diagnostics has improved markedly with the advent of micro- and nanotechnologies. Due to the COVID-19 pandemic, POC technologies have been rapidly innovated to address key limitations faced in existing standard diagnostic methods. This review summarizes and compares the latest available POC immunoassay, nucleic acid-based and clustered regularly interspaced short palindromic repeats- (CRISPR)-mediated tests for SARS-CoV-2 detection that we anticipate aiding healthcare facilities to control virus infection and prevent subsequent spread.

show abstract

Mist harvesting using bioinspired polydopamine coating and microfabrication technology

Cited by 90 publications

References 34 publications

Asymmetric Membrane Capacitive Deionization Using Anion-Exchange Membranes Based on Quaternized Polymer Blends

Asymmetric Membrane Capacitive Deionization Using Anion-Exchange Membranes Based on Quaternized Polymer Blends

Micro‐/Nanostructured Interface for Liquid Manipulation and Its Applications

Point of Care Diagnostics in the Age of COVID-19

Contact Info

Product

Resources

About