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…deproteinization, and nanoparticle synthesis, are assessed in terms of chemical intensity, energy demand, and associated emissions. Manufacturing routes, including solvent-based and green synthesis approaches, are compared with those of conventional plastics to identify relative environmental burde…
…and enhanced sampling are repeated sequentially until a polymer of desired length is obtained. We test the above procedure using a model supramolecular polymer in explicit solvent, and show that it can generate a polymer structure with characteristic H-bonding patterns at reduced computational cost…
…electron microscopy and atomic force microscopy show that the monolayer fraction exceeded 99\% for isopropanol and 92.9\% for water. These results suggest that TFF can combine solvent versatility with a high monolayer fraction in a purely mechanical top-down process. ▽ More We propose using Transon…
…on the thermally scaled pair potential. The framework yields efficient access to inhomogeneous structuring and related physical phenomena that occur in fluids and general solvents when adsorbed against curved solutes and confined inside of spherical and planar cavities. Test particle setups facilit…
…Benchmark, called SupraBench, to evaluate LLMs in chemistry reasoning. Specifically, we design four fundamental tasks, i.e., binding affinity prediction, top-binder selection, solvent identification, and host-guest description, plus an auxiliary vision-based task for molecular identification. We al…
…challenge across materials science and sustainable chemistry. In particular due to emerging technologies like organic and hybrid photovoltaics, batteries, and catalysis, solvent usage is expected to increase significantly within the coming years. Therefore, substituting… ▽ More Accurate prediction …
In the infinite dilution limit, we show that the solvent-mediated potential of mean force (PMF) between solutes, extracted from the hypernetted-chain (HNC) closure of the Ornstein-Zernike equations, can expressed as a convolution between solute-specific generalised excluded volume functions. In the …
…significantly enhanced catalytic performance relative to the parent TMDs. Furthermore, these MLs on Au foils were subjected to sonochemical treatment in polar and non-polar solvents, in which the treatment with polar solvents led to a substantial improvement in the HER activity of Janus MLs. In par…
56 pages : 25 cm Includes bibliographical references and index Solvent abuse -- What are solvents? -- A growing problem -- A dangerous shopping list -- History -- Who takes solvents? -- Getting hold of solvents -- Are solvents addictive? -- A sniff of death -- The solvents industry -- Family and fri…
Sanitized Copy Approved for Release 2011/09/27: CIA-RDP8O-00809AO00600370531-1 CLASSIFICATION CONFIDENTIAL WHO P& INFORMATION FROM FOREIGN DOCUMENTS OR RADIO BROADCASTS CD NO. COUNTRY German Democratic Republic SUBJECT Economic - Foreign trade HOW PUBLISHED Semimonthly periodicals WHERE PUBLISHED Fr…
Declassified in Part - Sanitized Copy Approved for Release 2012/03/21 : CIA-RDP82-00039R000200160007-6 STAT Declassified in Part - Sanitized Copy Approved for Release 2012/03/21 : CIA-RDP82-00039R000200160007-6 Declassified in Part - Sanitized Copy Approved for Release 2012/03/21 : CIA-RDP82-00039R0…
Dyeing and testing antimicrobial effect on cotton fabric were achieved using eco-friendly natural extract (Trianthema pentendra). Partitions of extracts were done using ethanol, ethyl acetate, chloroform and hexane solvents.
This progress report concerns the development of an analytical methodology to characterize and evaluate the efficiency of biomass fractionation and hydrolytic treatments. The report generalizes the analytical methodology proposed for hardwood to softwood treated by the aqueous/steam fractionation pr…
This article is from BMC Complementary and Alternative Medicine , volume 13 . Abstract Background: A number of bio-active secondary metabolites have been identified and reported for several Hypericum species. Many studies have reported the potential use of the plant extracts against several pathogen…
Efforts to commercialize organic solar cells (OSCs) by developing roll-to-roll compatible modules have encountered challenges in optimizing printing processes to attain laboratory-level performance in fully printable OSC architectures. In this study, we present efficient OSC modules fabricated solel…
Electrospinning is one of the simplest techniques for obtaining polymer nano fibers. Nanofibers have large surface area to volume ratio and hence have excellent application potential in sensors, filter design etc. Polyaniline (PANI) is the well-known and widely studied conducting polymer, which howe…
Abstract The activity of lithium ions in electrolytes depends on their solvation structures. However, the understanding of changes in Li+ activity is still elusive in terms of interactions between lithium ions and solvent molecules. Herein, the chelating effect of lithium ion by forming [Li(15C5)]+ …
This work presents the development and application of an innovative green supramolecular deep eutectic solvent (SUPRADES)-based DLLME approach for the extraction and quantification of melamine in milk matrices. For this purpose, thymol and nonanoic acid were combined to create a hydrophobic DES, whi…
Introduction: This study assesses the environmental impacts of mannosylerythritol lipids (MELs) production for process optimization using life cycle assessment (LCA). MELs are glycolipid-type microbial biosurfactants with many possible applications based on their surface-active properties. They are …
Current biodiesel production is costly, in part due to the catalysts added during transesterification and later washed out. We have previously shown that intact rapeseed shells can be ball-milled with an alcohol to produce biodiesel without an added catalyst. Here, we report on the activation and id…
This study describes the application of the Art of Scientific and Technological Search to strategically analyze areas of technological and industrial development. Application of scientific search strategies such as the creation of Patent Landscape has been shown to be useful for writing research pro…
Objective: To investigate antidiabetic and antioxidant activities of the extract and fractions from Vietnamese red seaweed Laurencia dendroidea. Methods: The seaweed Laurencia dendroidea was extracted by using microwave-assisted extraction method in 80% methanol. The seaweed extract was then fractio…
This study investigates the efficiency and effectiveness of green solvents in chemical reactions, comparing their performance to traditional solvents in terms of reaction yield, time, selectivity and environmental impact. Green solvents such as water, ionic liquids, deep eutectic solvents (DES), and…
Tungsten is a scarce and valuable metal with a wide range of applications. Currently, the recovery of tungsten from scheelite concentrates involves the use of strong acids, alkalis, and/or high temperatures (roasting). Deep Eutectic Solvents (DES) are proposed as an environmentally friendly alternat…
Schiff bases are known to possess antiviral, antifungal, antibacterial, enzymatic and other significant biological properties. They also chelate metals to form complexes that have been used in industrial processes. Schiff bases are also important in modern energy applications due to their photometri…
Department of Chemistry, B. C. B. College, Puri Department of Chemistry, Ravenshaw College, Cuttaok-3 Manuscript received 4 February 1982, revised 16 July 1982, accepted 10 March 1983 Viscosity of Sr(NO3)2 and Cd(NO3)2 in Mixed Solvents at Different Temperatures.
Precision cleaning solvents for aerospace components and oxygen fuel systems, including currently used Vertrel-MCA, have a negative environmental legacy, high global warming potential, and have polluted cleaning sites. Thus, alternative solvents and technologies are being investigated with the aim o…
Because of health and environmental concerns, many regulations have been passed in recent years regarding the use of chlorinated solvents. The Oak Ridge Y-12 Plant has had an active program to find alternatives for these solvents used in cleaning applications for the past 7 years. During this time f…
Screening of inorganic compounds as solvents for electrolytes in high energy density battery systems
Components in the aerospace industry must perform with accuracy and precision under extreme conditions, and surface contamination can be detrimental to the desired performance, especially in cases when the components come into contact with strong oxidizers such as liquid oxygen. Therefore, precision…
Aerospace machinery used in liquid oxygen (LOX) fuel systems must be precision cleaned to achieve a very low level of non-volatile residue (< 1 mg0.1 m2), especially flammable residue. Traditionally chlorofluorocarbons (CFCs) have been used in the precision cleaning of LOX systems, specifically CFC …
Spore recovery form cured silicone potting compounds using amine solvents to degrade the cured polymers was investigated. A complete list of solvents and a description of the effect of each on two different silicone polymers is provided.
For many years, chlorofluorocarbon (CFC) and chlorocarbon solvents have played an important part in aerospace operations. These solvents found extensive use as cleaning and analysis (EPA) solvents in precision and critical cleaning. However, CFCs and chlorocarbon solvents have deleterious effects on…
In this work, we have examined the predictive capability of a machine leaning model based on the XGBoost framework as regards the solubility of active pharmaceutical ingredient-like molecules in organic solvents over a wide range of temperatures. A total of 30 binary mixtures has been investigated. …
The solvent dispersibility of two-dimensional particles with pseudo- and permanently interlocked polyethylene oxide brushes was investigated. Their dispersibility was determined by desorption or retention of the polyethylene oxide axis of two-dimensional particles. This study provides new insight in…
Despite rapid advances in perovskite solar cells, solvent selection remains a central determinant of safety, process robustness, and end-of-life outcomes. These constraints are multi-dimensional and involve competing trade-offs, making them challenging to resolve through experimental optimization al…
In polymer electrolytes, poly(ε-caprolactone) (PCL) provides a lower lithium cation coordination strength as compared to the classically employed poly(ethylene oxide) (PEO), leading to enhanced lithium transference. Similar to PEO, however, PCL suffers from poor ionic conductivity, motivating plasti…
Hierarchical structures play a key role in governing the electronic properties of peptides. Despite recent advances, establishing clear structure-property relationships that connect the solvent environment, molecular conformation, and electron transport at the single-molecule level remains challengi…
The present study uses a hybrid approach to investigate the negative solvatochromism and preferential solvation of iso-quinolinium dicarboethoxy methylid (iQ) in pure and binary solvent mixtures. UV-vis absorbance studies were combined with DFT and TD-DFT methods with implicit and explicit solvation…
Efficient solubilization of nonpolar substances in polar solvents represents a fundamental challenge in environmental remediation, green chemistry, and separation processes. This limitation stems from the hydrophobic effect, which creates thermodynamic barriers, resulting in low intrinsic solubility…
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