MAPLE Deposition of Macromolecules

Shepard, Kimberly B.; Priestley, Rodney D.

doi:10.1002/macp.201200621

Cited by 57 publications

(51 citation statements)

References 95 publications

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“…Unfortunately, material degradation by thermal dissociation and photochemical reactions are commonly observed with direct laser ablation, making PLD unsuitable for applications that require preservation of bulk chemistry . Consequently, polymers should be kept at low molecular weight for PLD . In order to minimize the destruction of polymers, careful selection of the laser source and the corresponding wavelength should also be considered.…”

Section: Pvd Techniquesmentioning

confidence: 99%

“…We focus on elucidating general processing‐structure‐property relationships of films formed by this approach. Compared to the more commonly used solution processing techniques, that is, spin casting and solution casting, substrate temperature and deposition rate can be precisely manipulated during PVD to drive the semi‐crystalline morphology of thin films . It allows for simultaneous film growth and crystallization, as recently advocated .…”

Section: Introductionmentioning

confidence: 99%

“…Despite this challenge, there are many examples in which PVD has been successfully applied to control the semi‐crystalline morphology of polymer films. Furthermore, a recently developed PVD technique termed matrix assisted pulsed laser evaporation (MAPLE) has offered a substantial opportunity to bring deeper insights into the field by diminishing material degradation …”

Section: Introductionmentioning

confidence: 99%

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Exploiting physical vapor deposition for morphological control in semi‐crystalline polymer films

Wang

Jeong

Chowdhury

et al. 2018

Polymer Crystallization

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Research in semi‐crystalline polymer thin films has seen significant growth due to their fascinating thermal, mechanical, and electronic properties. In all applications, acquiring precise control over the film morphology atop various substrates or in the free‐standing film geometry is key to advancing product performance. This article reviews the crystallization of polymer thin films processed via physical vapor deposition (PVD). Classical PVD techniques are briefly reviewed, highlighting their working principles as well as successes and challenges to achieving morphological control of polymer films. Subsequently, the recent development of a unique PVD technique termed Matrix Assisted Pulsed Laser Evaporation (MAPLE) is highlighted. The non‐destructive technology overcomes the major drawback of polymer degradation by classical PVD. Recent advances highlighting how MAPLE can be exploited to control polymer film morphology in ways not achievable by other methods are presented. Challenges and future scope of PVD for polymer film deposition concludes the review.

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Section: Pvd Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Exploiting physical vapor deposition for morphological control in semi‐crystalline polymer films

Wang

Jeong

Chowdhury

et al. 2018

Polymer Crystallization

Self Cite

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“…The matrix absorbs most of the laser radiation giving a softer ejection mechanism with respect to pulsed laser deposition (PLD), hence transferring delicate molecules from the target to the substrate in undamaged form [2,3]. Due to such attributes, MAPLE technique has been successfully used to deposit several proteins in an undamaged and functional form [4][5][6][7][8]. However, the MAPLE deposition of lipase is a sensitive issue, since lipases are unique enzymes in that they require interfacial activation for full catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Frozen Microemulsions for MAPLE Immobilization of Lipase

Califano

Bloisi

Perretta

et al. 2017

Preprint

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MAPLE (matrix assisted pulsed laser evaporation) depositions of Candida Rugosa lipase were carried out from ice matrices whose composition is optimized in order to minimize conformational damage of the protein, which strongly influences its catalytic activity. To induce lid opening and to protect lipase during the MAPLE process, pentane and m-DOPA amino acid were added to the liquid matrix giving a target formed by a frozen water-lipase-pentane microemulsion. FTIR and AFM were used to investigate the structure of MAPLE deposited lipase films. The ability of MAPLE films to promote transesterification was determined by thin layer chromatography. It was shown that m-DOPA has influence on the aggregation but not on the unfolding of lipase induced by MAPLE, while the microemulsion formed by the addition of pentane to the target composition is effective in protecting lipase during the MAPLE process. MAPLE deposited lipases showed a modified specificity.

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“…Matrix-assisted pulsed laser evaporation " speciic tool appropriate for ablation of organic and inorganic materials is matrix-assisted pulsed laser evaporation (M"PLE Figure ). The material ejection and ilm formation in M"PLE process are also generated by photophysical interaction between laser and target material [56]. M"PLE technique proved to be an appropriate method to obtain high quality thin ilms by gentle laser transfer onto any substrate of interest [57].…”

Section: Pulsed Laser Depositionmentioning

confidence: 99%

Laser Ablation of Biomaterials

Popescu-Pelin¹,

Ristoscu²,

Mihăilescu³

2016

Applications of Laser Ablation - Thin Film Deposition, Nanomaterial Synthesis and Surface Modification

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Abstract"iomaterials, deined by high biocompatibility and biodegradability, are intensively used in medical applications, mainly to replace partial or total, damaged or destroyed hard or soft tissues. Most of them are used not only as coatings for implant coverage but also as parts for some medical devices. In the last decades, researchers sought to ind the optimum processing methods and parameters to modify or deposit the biomaterial of interest. "n important family of techniques, used to process a biomaterial, is represented by laser techniques, based upon laser ablation phenomenon. Laser ablation of biomaterials ensures the transference or modiication with good precision and without or with minimal disruptions generated. To obtain thin coatings from biomaterials, one can use deposition techniques: pulsed laser deposition (PLD) or matrix-assisted pulsed laser evaporation (M"PLE). These techniques are chosen according to the selected biomaterial and desired performances of the obtained coating. Therefore, some sensitive biomaterials can be transferred only by M"PLE. Some results in the ield of calcium phosphates deposited by PLD or M"PLE are presented, proving the usefulness of these biomaterials for medical applications.

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MAPLE Deposition of Macromolecules

Cited by 57 publications

References 95 publications

Exploiting physical vapor deposition for morphological control in semi‐crystalline polymer films

Exploiting physical vapor deposition for morphological control in semi‐crystalline polymer films

Frozen Microemulsions for MAPLE Immobilization of Lipase

Laser Ablation of Biomaterials

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