Results 81 to 90 of about 12,644 (309)
Cleaner Engineering and TechnologyThis study investigated historical copper sulfide tailings as an unconventional source of tellurium (Te), gold (Au), and silver (Ag). Advanced analytical studies were conducted to determine the geochemical and mineralogical properties of the tailing ...
Fardis Nakhaei, Lana Alagha, Gary Wyss
doaj +1 more source
Distribution, analysis, and recovery of fine gold from alluvial deposits [PDF]
, 1973 The United States Bureau of Mines, in its Heavy Metals Program, desired to have research performed to determine the size-frequency distribution and possible economic value of gold particles in the fine size ranges of Alaskan placer deposits.
Cook, D.J., Rao, P.D.
core
Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source
JTSL (Jurnal Tanah dan Sumberdaya Lahan), 2017 Gold processing tailings in small-scale gold mine in the form of sludge that still contain Hg and various other metal elements are commonly discharged in agricultural land and water bodies.
Riezka Setya Pratiwi +2 more
doaj
Fluid dynamics based modelling of the Falcon concentrator for ultrafine particle beneficiation [PDF]
, 2009 Enhanced gravity separators are widely used in minerals beneficiation, as their superior gravity field enables them to separate particles within narrow classes of density and size.
Bourgeois, Florent +2 more
core +3 more sources
Advanced Functional Materials, EarlyView.Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta +8 more
wiley +1 more source
Advanced Functional Materials, EarlyView.We present ultrathin flexible transparent electrodes through iCVD‐enabled molecular control of 10 nm gold films on poly(dimethylaminomethylstyrene). In vivo validation demonstrated photoelectric artifact reduction vs. opaque electrodes and preservation of natural neural dynamics.
Tae Jin Mun +11 more
wiley +1 more source
Strategies for Loading and Releasing Peptide Therapeutics in Biodegradable Carriers
Advanced Functional Materials, EarlyView.A biodegradable carrier‐based peptide delivery system is a powerful treatment platform for diverse diseases, owing to its superior therapeutic efficacy and low toxicity. This review examines the conventional peptide‐loaded carrier fabrication process and its current limitations.
Wookyoung Jang, Ki Wan Bong
wiley +1 more source
Synergistic impacts on a multi-purpose transboundary aquatic ecosystem resulting from cyanide and mercury in artisanal gold mining tailings [PDF]
Global Journal of Environmental Science and ManagementBACKGROUND AND OBJECTIVES: The transition from mercury amalgamation to cyanide-based extraction in artisanal and small-scale gold mining has reshaped contaminant behavior in mining-impacted watersheds.
P.C. Velasquez-Lopez +3 more
doaj +1 more source
Ultrasmall Platinum Nanoparticles for Radiation‐Enhanced Cancer Therapy
Advanced Functional Materials, EarlyView.This work proposes a nanomedicine‐based strategy to enhance X‐ray radiotherapy for cancer treatment. Ultrasmall Pt‐NPs exhibit catalase‐like activity that may contribute to modulation of the tumor microenvironment and amplify interactions between radiation and biological matter, leading to increased DNA damage.
Miguel Encinas‐Gimenez +8 more
wiley +1 more source