Pulsed laser cleaning (PLC) applied to samples in cultural heritage field

Torrisi, A.; Torrisi, L.

doi:10.1080/10420150.2022.2049780

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…New designs of nanomaterials started to attain specific properties, morphologies, sizes, and degrees of crystallinity more frequently, creating the need to evaluate these characteristics according to the environmental conditions, type of solvent, and concentration or reaction time. Synthesis methods that are bottom-up, such as sol-gel, hydrothermal, and colloidal, or breakdown, such as mechanical grinding or laser-based [128,129], began to interest researchers in achieving the most suitable treatment properties [94,130,131].…”

Section: Background Of the Nanotechnology In Cultural Heritage Conser...mentioning

confidence: 99%

“…There is a high probability of inhalation during spraying treatments (Figure 10b). Moreover, there is a greater risk of nanomaterial emissions during cleaning processes-for example, by laser [128,131], mechanical tests, or milling procedures; the latter is commonly applied in breakdown nanomaterials synthesis processes [627]. Therefore, it is mandatory to take more significant protection measures due to the high risk of the emission of nanomaterials into the environment.…”

Section: Preventive Measures During Conservation Treatments Of Cultur...mentioning

confidence: 99%

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Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

2023

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Nanotechnology has allowed for significant progress in architectural, artistic, archaeological, or museum heritage conservation for repairing and preventing damages produced by deterioration agents (weathering, contaminants, or biological actions). This review analyzes the current treatments using nanomaterials, including consolidants, biocides, hydrophobic protectives, mechanical resistance improvers, flame-retardants, and multifunctional nanocomposites. Unfortunately, nanomaterials can affect human and animal health, altering the environment. Right now, it is a priority to stop to analyze its advantages and disadvantages. Therefore, the aims are to raise awareness about the nanotoxicity risks during handling and the subsequent environmental exposure to all those directly or indirectly involved in conservation processes. It reports the human–body interaction mechanisms and provides guidelines for preventing or controlling its toxicity, mentioning the current toxicity research of main compounds and emphasizing the need to provide more information about morphological, structural, and specific features that ultimately contribute to understanding their toxicity. It provides information about the current documents of international organizations (European Commission, NIOSH, OECD, Countries Normative) about worker protection, isolation, laboratory ventilation control, and debris management. Furthermore, it reports the qualitative risk assessment methods, management strategies, dose control, and focus/receptor relationship, besides the latest trends of using nanomaterials in masks and gas emissions control devices, discussing their risk of toxicity.

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Section: Background Of the Nanotechnology In Cultural Heritage Conser...mentioning

confidence: 99%

Section: Preventive Measures During Conservation Treatments Of Cultur...mentioning

confidence: 99%

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

2023

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“…All these methods involve contact with feathers, which can disrupt their delicate structure. Laser cleaning is contactless [20][21][22][23][24][25][26][27][28][29], which makes it a potentially very attractive technique to conserve feathers. However, only a few case studies on the laser cleaning of feathers have been published to date [30][31][32][33][34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Investigating the potential of the Nd:YAG and Er:YAG lasers for the cleaning of feathers: a pilot study

Bertasa

Korenberg

2022

Herit Sci

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A dual-wavelength Q-switched Nd:YAG laser emitting at 1064 nm and 532 nm and an Er:YAG laser were tested on a range of feathers containing melanin, carotenoids and psittacofulvins. Dyed, white and iridescent feathers, as well as down feathers, were also included in the study. First, the damage threshold fluence was determined for each type of feather and then, as appropriate, laser tests were conducted on feathers artificially soiled with dust or carbon black. The Nd:YAG laser was unsuccessful at cleaning feathers soiled with carbon black. Better outcomes were obtained on feathers soiled with dust: the Nd:YAG laser was effective at both wavelengths at removing dust from white feathers, dyed feathers and yellow feathers containing psittacofulvins. Feathers containing melanin, as their main colourant, were found to have a much lower damage threshold fluence than other feathers. Also, laser radiation at 532 nm at high fluences can cause discolouration on pink feathers containing carotenoids. Finally, it was not possible to remove dust from down feathers without causing thermal damage. This investigation showed that laser cleaning using a Q-switched Nd:YAG laser can remove dust from certain types of feathers. However, further research is needed to assess any potential chemical or long-term effects of laser cleaning on feathers. Finally, the Er:YAG laser was found to be unsuitable for laser cleaning resulting in thermal damage to all feathers at low fluences.

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Comparative study of infrared nanosecond laser surface paint removal for carbon fiber reinforced polymer and glass fiber reinforced polymer

Song,

Wang,

Pan

et al. 2024

Journal of Cleaner Production

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Pulsed laser cleaning (PLC) applied to samples in cultural heritage field

Cited by 3 publications

References 20 publications

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

Investigating the potential of the Nd:YAG and Er:YAG lasers for the cleaning of feathers: a pilot study

Comparative study of infrared nanosecond laser surface paint removal for carbon fiber reinforced polymer and glass fiber reinforced polymer

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