Evaporation of sessile droplets containing non-volatile solutes dispersed in a volatile solvent leaves behind ring-like solid stains. As the volatile species evaporates, pinning of the contact line gives rise to capillary flows that transport non-volatile solutes to the contact line. This phenomenon, called the coffee-ring effect, compromises the overall performance of industrially relevant manufacturing processes involving evaporation such as printing, biochemical analysis, manufacturing of nano-structured materials through colloidal and macromolecular patterning. Various approaches have been developed to suppress this phenomenon, which is otherwise difficult to avoid. The coffee-ring effect has also been leveraged to prepare new materials through convection induced assembly. This review underlines not only the strategies developed to suppress the coffee-ring effect but also sheds light on approaches to arrive at novel processes and materials. Working principles and applicability of these strategies are discussed together with a critical comparison.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.cis.2017.12.008 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Elevating sensory quality through a dual-acid preservation strategy in ready-to-eat crayfish (Procambarus clarkii).
Food Chem
December 2024
School of Food Science and Technology, Dalian Polytechnic University; National Engineering Research Center of Seafood, Dalian 116034, PR China.
This study presents a targeted dual-acid preservation strategy for ready-to-eat crayfish (Procambarus clarkii), integrating a blend of phytic and lactic acids to fortify key sensory attributes throughout the storage phase. The primary objective was to maintain the sensory attributes of the crayfish during a 30-day storage period under 40 °C. Our approach significantly bolstered color retention by suppressing Maillard reactions and lipid oxidation, thereby maintaining the product's visual allure.
View Article and Find Full Text PDFFerroelectric Polarization Coupling Effect in BiFeO/α-InSe Ferroelectric Field Effect Transistor for Stable Non-volatile Memory.
Small
December 2024
CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China.
Ferroelectric field-effect transistors (FeFETs) commonly utilize traditional oxide ferroelectric materials for their strong remanent polarization. Yet, integrating them with the standard complementary metal oxide semiconductor (CMOS) process is challenging due to the need for lattice matching and the high-temperature rapid thermal annealing process, which are not always compatible with CMOS fabrication. However, the advent of the ferroelectric semiconductor α-InSe offers a compelling solution to these challenges.
View Article and Find Full Text PDFThe Fluorescent Sensing of BF and Amines: A Dual Approach with Hydrazone Ligands.
Sensors (Basel)
November 2024
College of Chemistry and Chemical Engineering, Xinjiang Agricultural University, Urumqi 830002, China.
BF, volatile amines (VOAs), and biogenic amines (BAs) are the key indicators in chemical reaction catalysis and food quality monitoring. In this study, we present two types of fluorescent sensors, a hydrazone ligand (HL)-based fluorescent sensor for BF detection and a novel sensor array using six boron difluoride (BF) hydrazone complexes (BFHs) for monitoring VOAs and BAs. Spectral research indicates that the interaction mechanism between the HLs and BF is based on intramolecular charge transfer (ICT).
View Article and Find Full Text PDFAqueous solution of biogenic carboxylic acids as sustainable catalysts and green reaction media for the high-yielding synthesis of Biginelli adducts, Hantzsch esters, and substituted pyridines.
RSC Adv
December 2024
Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal Mangalore-575025 India
3,4-Dihydropyrimidin-2(1)-ones (DHPMs) and 1,4-dihydropyridines (DHPs), prepared by applying the Biginelli and Hantzsch reaction protocols, respectively, are well-documented nitrogen-containing heterocycles with intriguing pharmacological properties. The aqueous solution of biogenic carboxylic acids renewably produced from biomass catalytic or enzymatic processes can be used as a sustainable catalyst and green reaction media for synthesizing DHPs and DHPMs. This work evaluates the efficacy of various biogenic acids in their aqueous solutions as catalysts for synthesizing DHPs and DHPMs from substituted benzaldehydes.
View Article and Find Full Text PDFArticle Synopsis
- Integration of phase change materials (PCM) with photonic circuits can provide effective control over phase and amplitude, leading to more efficient photonic systems.
- The research showcases the first-ever electrically programmable PCM device made using a commercial silicon photonics process, achieving significant amplitude switching performance.
- This advancement enables the creation of low-cost, reliable non-volatile programmable photonic circuits, potentially benefiting various emerging applications.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!