Gold in photography

Ellis, Philip

doi:10.1007/bf03215055

Cited by 10 publications

(5 citation statements)

References 4 publications

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“…We prevent this undesired swelling by adding a small amount of the cross‐linker glutaraldehyde (0.1%) to the toning solution. During this toning process, gold grows on pre‐existing Ag/Ag 2 O particles and forms a coating, yielding gold‐silver (Au@Ag) core‐shell particles, [ 37 ] consistent with EDXA of the resulting MPF (atomic ratio Au:Ag = 0.42:1). With Prussian blue toning, a similar coating of iron can be produced.…”

Section: Resultsmentioning

confidence: 86%

Designing Complex Tapestries with Photography‐Inspired Manipulation of Self‐Organized Thin‐Films

van Campenhout,

Bistervels,

Rietveld

et al. 2024

Advanced Science

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Thin‐films patterned with complex motifs are of fundamental interest because of their advanced optical, mechanical and electronic properties, but fabrication of these materials remains challenging. Self‐organization strategies, such as immersion controlled reaction‐diffusion patterning, have shown great potential for production of patterned thin‐films. However, the autonomous nature of such processes limits controllable pattern customizability and complexity. Here, it is demonstrated that photography inspired manipulation processes can overcome this limitation to create highly‐complex tapestries of micropatterned films (MPF's). Inspired by classical photographic processes, MPF's are developed, bleached, exposed, fixed, and contoured into user‐defined shapes and photographic toning reactions are used to convert the chemical composition MPF's, while preserving the original stripe patterns. By applying principles of composite photography, highly complex tapestries composed of multiple MPF layers are designed, where each layer can be individually manipulated into a specific shape and composition. By overcoming fundamental limitations, this synergistic approach broadens the design possibilities of reaction‐diffusion processes, furthering the potential of self‐organization strategies for the development of complex materials.

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Section: Resultsmentioning

confidence: 86%

Designing Complex Tapestries with Photography‐Inspired Manipulation of Self‐Organized Thin‐Films

van Campenhout,

Bistervels,

Rietveld

et al. 2024

Advanced Science

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“…The method used here, which we have optimized for APEX localization, is based on well-established methods for histological and EM visualization of the insoluble DAB product of peroxidase ( Adams, 1981 ; Danscher and Nörgaard, 1983 ; Dobó et al, 2011 ; Newman and Jasani, 1998 ; Pohl and Stierhof, 1998 ), combined with the methods of silver reduction and gold toning developed for photography in the 19th century (for review, see Ellis, 1975 ). These methods have been developed and used in many laboratories to allow enhancement of the DAB reaction for light microscopic applications, for converting the DAB signal to an easily detected particulate marker to allow discrimination from any cellular structures, and to increase the sensitivity of DAB detection ( Dobó et al, 2011 ; Newman et al, 1983 ; Sedmak et al, 2009 ).…”

Section: Discussionmentioning

confidence: 99%

A robust method for particulate detection of a genetic tag for 3D electron microscopy

Rae

Ferguson

Ariotti

et al. 2021

eLife

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Genetic tags allow rapid localization of tagged proteins in cells and tissues. APEX, an ascorbate peroxidase, has proven to be one of the most versatile and robust genetic tags for ultrastructural localization by electron microscopy (EM). Here, we describe a simple method, APEX-Gold, which converts the diffuse oxidized diaminobenzidine reaction product of APEX into a silver/gold particle akin to that used for immunogold labelling. The method increases the signal-to-noise ratio for EM detection, providing unambiguous detection of the tagged protein, and creates a readily quantifiable particulate signal. We demonstrate the wide applicability of this method for detection of membrane proteins, cytoplasmic proteins, and cytoskeletal proteins. The method can be combined with different EM techniques including fast freezing and freeze substitution, focussed ion beam scanning EM, and electron tomography. Quantitation of expressed APEX-fusion proteins is achievable using membrane vesicles generated by a cell-free expression system. These membrane vesicles possess a defined quantum of signal, which can act as an internal standard for determination of the absolute density of expressed APEX-fusion proteins. Detection of fusion proteins expressed at low levels in cells from CRISPR-edited mice demonstrates the high sensitivity of the APEX-Gold method.

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“…This choice is deliberate, as sepia toning imparts a warmer hue and enhances retro and vintage qualities to photographs. In photography, a warmer tone often elicits a more sentimental response (Ellis, 1975). Accompanied by sombre music, including a drum roll reminiscent of execution scenes, the presenter’s voice adopts a mournful tone.…”

Section: Pseudo-rationalisation As a Tool Of Delegitimising Abortionsmentioning

confidence: 99%

You’re a murderer: Critical discourse analysis of conversations around abortions in the Russian talk show

Kamalova

2023

Discourse & Society

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Today in Russia, there is a growing number of anti-abortion policies even though the birth rate is not a key factor affecting the demographic situation in the country. In this article, I investigate how the anti-abortion discourse is constructed in the media. For this purpose, I analyse a dataset of 5 hour-long episodes of the tabloid talk show Pust’ Govoriat. More specifically, the aim of this article is twofold. I seek to demonstrate to what extent the discourse displayed in the show is shaped and shapes by the Russian government’s family policies and, consequently, public opinion. On the other side, I aim to understand how speakers verbally and non-verbally negotiate morality, norms, gender roles and identities to negotiate if abortion is acceptable or not. I advocate that the tabloid talk show, like many other state-funded media products in Russia, is utilised as a government’s tool for anti-abortion propaganda and depoliticisation of social problems.

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Gold in photography

Cited by 10 publications

References 4 publications

Designing Complex Tapestries with Photography‐Inspired Manipulation of Self‐Organized Thin‐Films

Designing Complex Tapestries with Photography‐Inspired Manipulation of Self‐Organized Thin‐Films

A robust method for particulate detection of a genetic tag for 3D electron microscopy

You’re a murderer: Critical discourse analysis of conversations around abortions in the Russian talk show

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