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Bulk Nanobubbles Fabricated by Repeated Compression of Microbubbles
Langmuir, 2019Nanobubbles (NBs), given its extraordinary properties, have drawn keen attention in the field of nanotechnology worldwide. However, compared to that of surface NBs, generation of stable bulk NBs remains an arduous task with the prevailing method. In this study, we developed a pressure-driven method to prepare bulk NBs by repeatedly compressing sulfur ...
Juan Jin +3 more
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Interaction of Bulk Nanobubbles (Ultrafine Bubbles) with a Solid Surface
Langmuir, 2021The experimental results [Kanematsu, W. Chem. Eng. Sci. 2020, 219, 115594] on the temporal variations of number concentrations of bulk nanobubbles (ultrafine bubbles) in contact with polymer materials are theoretically analyzed based on the dynamic equilibrium model of bulk nanobubbles partly covered with hydrophobic materials (impurities).
Kyuichi Yasui +2 more
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Evolution of Bulk Nanobubbles under Different Freezing Conditions
Langmuir, 2023The freezing process of aqueous solutions plays a crucial role in various applications including cryopreservation, glaciers, and frozen materials. However, less research has focused on the influence of nanoscale gas bubble formation or collapse in water during freezing, which may significantly impact the formation of ice crystals. Herein, we report for
Juncheng Qi +5 more
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Coalescence Conditions for Bulk Nanobubbles
Technical Physics Letters, 2020The coalescence of two nanobubbles with substantially different radii is considered. Studies of this problem have practical significance, because coalescence is an undesirable process (the nanobubbles lose their unique properties after enlargement). An energy-based approach is used with a simplified model of charged nanobubbles to demonstrate that bulk
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Understanding the Stabilization of a Bulk Nanobubble: A Molecular Dynamics Analysis
Langmuir, 2021Bulk nanobubbles (NBs) have received considerable attention because of their extensive potential applications, such as in ultrasound imaging and water management. Although multiple types of experimental evidence have supported the existence and stabilization of bulk NBs, the underlying mechanism remains unclear.
Zhan Gao +3 more
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Surface enrichment of ions leads to the stability of bulk nanobubbles
Soft Matter, 2020Charge enrichment at nanobubble interfaces generates an electric field energy that leads to thermodynamic metastability of nanobubbles.
Hongguang Zhang +2 more
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Rheology of highly concentrated bulk nanobubbles in water
NanoscaleBulk nanobubbles (BNBs), unlike macro bubbles, exhibit extraordinary longevity in water, and can be produced at higher concentrations than previously thought.
Fankai Peng, Ahmad Jabbarzadeh
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Interfacial Thermal Fluctuations Stabilize Bulk Nanobubbles
Physical Review LettersConsensus on bulk nanobubble stability remains elusive, despite accepted indirect evidence for longevity. We develop a nanobubble evolution model by incorporating thermal capillary wave theory that reveals that dense nanobubbles generated by acoustic cavitation tend to shrink and intensify interfacial thermal fluctuations; this significantly reduces ...
Yuyu Chen +4 more
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Role of Capillary Fluctuations in Stabilizing Bulk Nanobubbles
LangmuirThe existence of bulk nanobubbles (BNBs) has long been questioned, primarily due to the limitations of experimental techniques and the widespread assumption that spherical bubbles cannot achieve a stable equilibrium. In this study, we develop a model that describes the stability of BNBs based on experimental observations, revealing that the intensity N
Yao Wang +5 more
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Microfluidic Generation of Bulk Nanobubbles
<p>Microfluidics plays a pivotal role in advancing lab-on-a-chip technologies, offering the potential to create bulk nanobubbles for therapeutic applications. However, the utilization of microfluidics for this purpose has been limited. This dissertation introduces innovative microfluidic techniques aimed at producing uniform bulk nanobubbles and ...openaire +1 more source