Results 211 to 220 of about 7,457 (263)

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

Dispensing Volumetric Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon   +5 more
wiley   +1 more source

Pressurized Liquid Extraction (PLE)

2023
 Pressurized liquid extraction (PLE) is regarded as an emergent extraction technique; it is an appropriate tool to obtain green extracts from foods or related samples. Studies on the content of contaminants in foods or food raw materials can be carried out by PLE. In the same way, studies on the obtention of bioactive extracts from classic and
Natalie Álvarez Alarcon   +5 more
openaire   +1 more source

Pressurized liquid extraction of medicinal plants

Journal of Chromatography A, 1999
The suitability of pressurized liquid extraction (PLE) in medicinal plant analysis was investigated. PLE extracts from a selection of representative herbs were compared with extracts obtained according to Pharmacopoeia monographs with respect to yield of relevant plant constituents, extraction time and solvent consumption.
B, Benthin, H, Danz, M, Hamburger
openaire   +2 more sources

Pressurized Liquid Extraction of Flavonoids from Spinach

Journal of Food Science, 2008
ABSTRACT:  Pressurized liquid extraction (PLE) using water and a 70:30 mixture of ethanol and water over the temperature range of 50 to 190 °C was used to extract flavonoids from dried spinach. The total phenolic content, antioxidant capacity, color, and browning indices of the extracts were also evaluated.
L, Howard, N, Pandjaitan
openaire   +2 more sources

Pressurized liquid extraction of mate tea leaves

Analytica Chimica Acta, 2008
The objective of this work is to investigate the influence of process parameters on the pressurized liquid extraction (PLE) of Ilex paraguariensis leaves. A factorial 2(6-2) experimental design was employed using responses as the extraction yield and the chromatographic profile of the extracts. The extraction time, polarity of solvent, amount of sample,
Rosângela Assis, Jacques   +3 more
openaire   +2 more sources

Pressurized liquid extraction (PLE)

2014
La pressurized liquid extraction (PLE) — spesso indicata anche con gli acronimi PSE (pressurized solvent extraction) o ASE (accelerated solvent extraction, denominazione commerciale del primo estrattore basato su questo metodo) — e una tecnica di estrazione rapida ed efficiente comunemente impiegata con campioni solidi e semisolidi, che utilizza ...
MORET, Sabrina, CONTE, Lanfranco
openaire   +1 more source

Pressurized liquid extraction of toxins from cyanobacterial cells

Environmental Toxicology, 2005
AbstractThe suitability of pressurized liquid extraction (PLE) of cyanotoxins from cells was investigated. The stability of cyanotoxins (MCYST‐RR, MCYST‐LR, and anatoxin‐a) was evaluated at nine combinations of pressure and temperature (7, 10, and 14 MPa and 60°C, 80°C and 100°C) using 75% (v/v) methanol in water (MeOH) as solvent.
Rocio, Aranda-Rodriguez   +5 more
openaire   +2 more sources

Pressurized liquid extraction in environmental analysis

Analytical and Bioanalytical Chemistry, 2006
A critical evaluation of recent literature utilizing pressurized liquid extraction (PLE) for environmental analysis is presented by compound class. Overall, the extraction efficiency of PLE, using the appropriate solvent, temperature and pressure for extraction, is similar to that of Soxhlet extraction.
openaire   +2 more sources

Pressurized liquid extraction of pharmaceuticals from sewage‐sludge

Journal of Separation Science, 2007
AbstractA method for the quantitative determination of ten pharmaceuticals in sewage sludge was developed by using pressurized liquid extraction (PLE) and HPLC–MS with ESI (HPLC‐(ESI)MS). The PLE was optimized with regard to solvents and operational parameters, such as temperature, pressure, extraction time, and purge time. The optimum conditions were:
Antonio, Nieto   +3 more
openaire   +2 more sources

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