Heat induced superhydrophilic glass surface

Zhang, Dongdong; Gao, Naikun; Yan, Weishan; Luo, Wenyao; Zhang, Ling; Zhao, Chaopeng; Zhang, Wangyang; Liu, Duo

doi:10.1016/j.matlet.2018.03.158

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…To investigate surface crystallization, a liquid film with an open surface was prepared by spreading a liquid of d -arabitol at 403 K on a heat-treated coverslip that facilitates spreading . Bulk crystallization was investigated using a liquid film sandwiched between two coverslips.…”

Section: Methodsmentioning

confidence: 99%

“…To investigate surface crystallization, a liquid film with an open surface was prepared by spreading a liquid of D-arabitol at 403 K on a heat-treated coverslip that facilitates spreading. 46 Bulk crystallization was investigated using a liquid film sandwiched between two coverslips. To measure the nucleation rate, in the one-stage method, 34 crystals were allowed to form in a sample and the birth time of each crystal was calculated from the current size and the growth rate.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

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Anisotropic Molecular Organization at a Liquid/Vapor Interface Promotes Crystal Nucleation with Polymorph Selection

et al. 2022

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The molecules at the surface of a liquid have different organization and dynamics from those in the bulk, potentially altering the rate of crystal nucleation and polymorphic selection, but this effect remains poorly understood. Here we demonstrate that nucleation at the surface of a pure liquid, d-arabitol, is vastly enhanced, by 12 orders of magnitude, and selects a different polymorph. The surface effect intensifies with cooling and can be inhibited by a dilute, surface-active second component. This phenomenon arises from the anisotropic molecular packing at the interface and its similarity to the surface-nucleating polymorph. Our finding is relevant for controlling the crystallization and polymorphism in any system with a significant interface such as nanodroplets and atmospheric water.

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Section: Methodsmentioning

confidence: 99%

Section: ■ Materials and Methodsmentioning

confidence: 99%

Anisotropic Molecular Organization at a Liquid/Vapor Interface Promotes Crystal Nucleation with Polymorph Selection

et al. 2022

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“…Temperature control was achieved with a refrigerator (290 ± 1 K) and custom-made mini-ovens (298−333 K, ±0.1 K precision at each temperature). To measure the surface nucleation rates, an APAP powder was melted on a heat-treated coverslip to promote liquid spreading; 45 this yielded a liquid film ca. 100 μm thick with an open surface.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Surface Enhancement of Crystal Nucleation in Amorphous Acetaminophen

Wu¹,

Yao

Gui

et al. 2022

Crystal Growth & Design

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Crystal nucleation rates have been measured in the bulk and at the surface of acetaminophen melt. Of its six known polymorphs, Form III nucleates in the temperature range investigated (290–333 K), both in the bulk and at the surface. Nucleation is the fastest near 318 K (about 20 K above the bulk glass transition temperature T g) at a rate of 3 × 106 s–1 m–3 in the bulk and 200 s–1 m–2 on the surface. On the per-molecule basis, surface nucleation outpaces bulk nucleation by 5 orders of magnitude, highlighting the importance of the liquid/vapor interface in crystal nucleation. In contrast to its strong effect on nucleation, the free surface has a weak effect on crystal growth. The observed nucleation kinetics is well described by the Classical Nucleation Theory (CNT) if the crystal growth rate is used to represent the kinetic barrier. Our finding is relevant for understanding the physical stability of amorphous materials for applications in drug delivery and electronics.

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“…Notably, the wettability transition of commercially available soda-lime glass subjected to heat treatment at 900 K in an air environment was attributed to the increase in the surface roughness and changes in its composition. 2 Moreover, the wettability of soda-lime silicate and borosilicate glasses can be modified through thermal poling. 3,4 The changes in the polarity of the anodic surface induced by poling treatments are crucial to controlling the wettability of glass systems.…”

Section: Introductionmentioning

confidence: 99%

“…The wettability of glasses is governed by their chemical compositions and surface characteristics. Notably, the wettability transition of commercially available soda‐lime glass subjected to heat treatment at 900 K in an air environment was attributed to the increase in the surface roughness and changes in its composition 2 . Moreover, the wettability of soda‐lime silicate and borosilicate glasses can be modified through thermal poling 3,4 .…”

Section: Introductionmentioning

confidence: 99%

Influence of structural change by heat treatment on the wettability of borosilicate glass

Maeda

Sakai

Matsuura

2022

Int J of Appl Glass Sci

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The chemical composition and surface structure of glass affect its wettability and can thus lead to the formation of various functional surfaces. This study examined the influence of the structural changes induced by the heat treatment of sodium borosilicate glass on its wettability. Specifically, 15Na2O‐40B2O3‐45SiO2 glass was prepared through melt‐quenching. The obtained glass was subjected to heat treatment at 600°C for 3 h. The heat‐treated glass exhibited a higher hydrophilicity and surface free energy than the nontreated glass. The heat treatment led to a variation in the relative ratio associated with the boron coordination number and nonbridging oxygen. Therefore, the heat‐treatment‐induced changes in the glass structure considerably enhanced the wettability of the glass.

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Heat induced superhydrophilic glass surface

Cited by 9 publications

References 13 publications

Anisotropic Molecular Organization at a Liquid/Vapor Interface Promotes Crystal Nucleation with Polymorph Selection

Anisotropic Molecular Organization at a Liquid/Vapor Interface Promotes Crystal Nucleation with Polymorph Selection

Surface Enhancement of Crystal Nucleation in Amorphous Acetaminophen

Influence of structural change by heat treatment on the wettability of borosilicate glass

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