Results 101 to 110 of about 2,826,109 (303)

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

open access: yesAdvanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco   +4 more
wiley   +1 more source

Black-Pigmented Marine Pseudomonas aeruginosa Exhibiting Anti-Bacterial Activity against Multidrug-Resistant (MDR) Wound Infection Bacteria

open access: yesHayati Journal of Biosciences
The urgency of multidrug-resistant (MDR) bacterial infections in wounds is a significant concern due to the high prevalence of MDR in healthcare settings.
Muhammad Evy Prastiyanto   +3 more
doaj   +1 more source

Pigment concentrations at station TT011_12-CTD147

open access: yes, 2003
Pigment concentrations at station TT011_12 ...
Bidigare, Robert R   +1 more
core   +1 more source

Self‐Sealing Microneedles Improve Precision and Reduce Reflux in Subretinal Cell Transplantation

open access: yesAdvanced Materials Technologies, EarlyView.
Ultrafine 49G microneedles enable subretinal delivery of induced pluripotent stem cell‐derived retinal pigment epithelial cells through a 50 µm outer diameter tip. Compared with conventional 38G microcannulas, these microneedles reduce cell suspension reflux in a rabbit model, highlighting the potential of microinvasive delivery instruments to improve ...
Jared Ching   +9 more
wiley   +1 more source

Enzymatic Identification of the Anthocyanin Pigment of Blackberry [PDF]

open access: yesNature, 1956
Karrer and Pieper reported in 1930 that the principal pigment of blackberry, Rubus fructicosus L., was either identical or isomeric with chrysanthemin or cyanidin-3-β-monoglucoside1. They obtained compact polyhedral rhombs of a pigment chloride which was indistinguishable in colour properties from an authentic sample of chrysanthemin chloride, and ...
openaire   +1 more source

Pigment concentrations at station TT011_1-CTD11

open access: yes, 2003
Pigment concentrations at station TT011_1 ...
Bidigare, Robert R   +1 more
core   +1 more source

Electrically Induced Photonic Assemblies of Faceted ZIF‐8 Crystals Exhibiting Binary Angle‐Dependent Structural Color and Metamerism

open access: yesAdvanced Optical Materials, EarlyView.
Electric fields drive dynamic photonic assemblies that reversibly generate structural color. By tuning nanoscale organization through controlled particle disorder, the presented system exhibits a unique binary color response, switching between blue and pink depending on viewing angle. Combined with metameric design, this allows for a two‐factor optical
Flora Schöfbeck   +9 more
wiley   +1 more source

Hidden in plain sight: revisiting the synthesis, characterisation, degradation and the intricate relationship between Scheele’s green and Emerald green

open access: yesHeritage Science
Carl Wilhelm Scheele's notorious toxic pigment, commonly referred to as “Scheele's green” often resulted in a mixture of products with unknown chemical composition.
Leonardo Pantoja Munoz
doaj   +1 more source

Identification of widely conserved biosynthetic gene cluster involved in pigment production of Bacillus subtilis

open access: yesmSystems
Bacillus subtilis is widely studied in the microbial secondary metabolite (SM) field due to its rich variety of important natural products and genetic tractability. We report a pigment observed in B. subtilis soil isolate MB9_B4 on certain media.
Rune Overlund Stannius   +6 more
doaj   +1 more source

Characterization of photoluminescent and Raman properties of ultramarine blue pigment variants with a novel multimodal approach [PDF]

open access: yesEPJ Web of Conferences
Ultramarine Blue (UB) pigment, derived from lapis lazuli, holds a significant place in the history of late medieval and Renaissance Europe, owing to its unusually bright colour and stability. Its prohibitive price, which equalled that of gold, meant that
Carta Francesco   +6 more
doaj   +1 more source

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